1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * modification, are permitted provided that the following conditions are |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * met: |
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10 | * |
9 | * |
11 | * * Redistributions of source code must retain the above copyright |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
12 | * notice, this list of conditions and the following disclaimer. |
11 | * this list of conditions and the following disclaimer. |
13 | * |
12 | * |
14 | * * Redistributions in binary form must reproduce the above |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
15 | * copyright notice, this list of conditions and the following |
14 | * notice, this list of conditions and the following disclaimer in the |
16 | * disclaimer in the documentation and/or other materials provided |
15 | * documentation and/or other materials provided with the distribution. |
17 | * with the distribution. |
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18 | * |
16 | * |
19 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
20 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
21 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
22 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
23 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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24 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
25 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
25 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
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27 | * |
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28 | * Alternatively, the contents of this file may be used under the terms of |
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29 | * the GNU General Public License ("GPL") version 2 or any later version, |
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30 | * in which case the provisions of the GPL are applicable instead of |
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31 | * the above. If you wish to allow the use of your version of this file |
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32 | * only under the terms of the GPL and not to allow others to use your |
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33 | * version of this file under the BSD license, indicate your decision |
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34 | * by deleting the provisions above and replace them with the notice |
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35 | * and other provisions required by the GPL. If you do not delete the |
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36 | * provisions above, a recipient may use your version of this file under |
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37 | * either the BSD or the GPL. |
30 | */ |
38 | */ |
31 | |
39 | |
32 | #ifdef __cplusplus |
40 | /* this big block deduces configuration from config.h */ |
33 | extern "C" { |
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34 | #endif |
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35 | |
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36 | #ifndef EV_STANDALONE |
41 | #ifndef EV_STANDALONE |
37 | # ifdef EV_CONFIG_H |
42 | # ifdef EV_CONFIG_H |
38 | # include EV_CONFIG_H |
43 | # include EV_CONFIG_H |
39 | # else |
44 | # else |
40 | # include "config.h" |
45 | # include "config.h" |
41 | # endif |
46 | # endif |
42 | |
47 | |
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48 | #if HAVE_FLOOR |
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49 | # ifndef EV_USE_FLOOR |
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50 | # define EV_USE_FLOOR 1 |
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51 | # endif |
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52 | #endif |
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53 | |
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54 | # if HAVE_CLOCK_SYSCALL |
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55 | # ifndef EV_USE_CLOCK_SYSCALL |
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56 | # define EV_USE_CLOCK_SYSCALL 1 |
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57 | # ifndef EV_USE_REALTIME |
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58 | # define EV_USE_REALTIME 0 |
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59 | # endif |
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60 | # ifndef EV_USE_MONOTONIC |
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61 | # define EV_USE_MONOTONIC 1 |
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62 | # endif |
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63 | # endif |
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64 | # elif !defined EV_USE_CLOCK_SYSCALL |
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65 | # define EV_USE_CLOCK_SYSCALL 0 |
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66 | # endif |
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67 | |
43 | # if HAVE_CLOCK_GETTIME |
68 | # if HAVE_CLOCK_GETTIME |
44 | # ifndef EV_USE_MONOTONIC |
69 | # ifndef EV_USE_MONOTONIC |
45 | # define EV_USE_MONOTONIC 1 |
70 | # define EV_USE_MONOTONIC 1 |
46 | # endif |
71 | # endif |
47 | # ifndef EV_USE_REALTIME |
72 | # ifndef EV_USE_REALTIME |
48 | # define EV_USE_REALTIME 1 |
73 | # define EV_USE_REALTIME 0 |
49 | # endif |
74 | # endif |
50 | # else |
75 | # else |
51 | # ifndef EV_USE_MONOTONIC |
76 | # ifndef EV_USE_MONOTONIC |
52 | # define EV_USE_MONOTONIC 0 |
77 | # define EV_USE_MONOTONIC 0 |
53 | # endif |
78 | # endif |
54 | # ifndef EV_USE_REALTIME |
79 | # ifndef EV_USE_REALTIME |
55 | # define EV_USE_REALTIME 0 |
80 | # define EV_USE_REALTIME 0 |
56 | # endif |
81 | # endif |
57 | # endif |
82 | # endif |
58 | |
83 | |
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84 | # if HAVE_NANOSLEEP |
59 | # ifndef EV_USE_NANOSLEEP |
85 | # ifndef EV_USE_NANOSLEEP |
60 | # if HAVE_NANOSLEEP |
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61 | # define EV_USE_NANOSLEEP 1 |
86 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
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87 | # endif |
62 | # else |
88 | # else |
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89 | # undef EV_USE_NANOSLEEP |
63 | # define EV_USE_NANOSLEEP 0 |
90 | # define EV_USE_NANOSLEEP 0 |
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91 | # endif |
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92 | |
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93 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
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94 | # ifndef EV_USE_SELECT |
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95 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
64 | # endif |
96 | # endif |
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97 | # else |
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98 | # undef EV_USE_SELECT |
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99 | # define EV_USE_SELECT 0 |
65 | # endif |
100 | # endif |
66 | |
101 | |
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102 | # if HAVE_POLL && HAVE_POLL_H |
67 | # ifndef EV_USE_SELECT |
103 | # ifndef EV_USE_POLL |
68 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
104 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
69 | # define EV_USE_SELECT 1 |
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70 | # else |
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71 | # define EV_USE_SELECT 0 |
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72 | # endif |
105 | # endif |
73 | # endif |
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74 | |
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75 | # ifndef EV_USE_POLL |
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76 | # if HAVE_POLL && HAVE_POLL_H |
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77 | # define EV_USE_POLL 1 |
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78 | # else |
106 | # else |
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107 | # undef EV_USE_POLL |
79 | # define EV_USE_POLL 0 |
108 | # define EV_USE_POLL 0 |
80 | # endif |
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81 | # endif |
109 | # endif |
82 | |
110 | |
83 | # ifndef EV_USE_EPOLL |
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84 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
111 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
85 | # define EV_USE_EPOLL 1 |
112 | # ifndef EV_USE_EPOLL |
86 | # else |
113 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
87 | # define EV_USE_EPOLL 0 |
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88 | # endif |
114 | # endif |
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115 | # else |
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116 | # undef EV_USE_EPOLL |
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117 | # define EV_USE_EPOLL 0 |
89 | # endif |
118 | # endif |
90 | |
119 | |
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120 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
91 | # ifndef EV_USE_KQUEUE |
121 | # ifndef EV_USE_KQUEUE |
92 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
122 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
93 | # define EV_USE_KQUEUE 1 |
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94 | # else |
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95 | # define EV_USE_KQUEUE 0 |
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96 | # endif |
123 | # endif |
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124 | # else |
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125 | # undef EV_USE_KQUEUE |
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126 | # define EV_USE_KQUEUE 0 |
97 | # endif |
127 | # endif |
98 | |
128 | |
99 | # ifndef EV_USE_PORT |
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100 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
129 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
101 | # define EV_USE_PORT 1 |
130 | # ifndef EV_USE_PORT |
102 | # else |
131 | # define EV_USE_PORT EV_FEATURE_BACKENDS |
103 | # define EV_USE_PORT 0 |
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104 | # endif |
132 | # endif |
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133 | # else |
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134 | # undef EV_USE_PORT |
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135 | # define EV_USE_PORT 0 |
105 | # endif |
136 | # endif |
106 | |
137 | |
107 | # ifndef EV_USE_INOTIFY |
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108 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
138 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
109 | # define EV_USE_INOTIFY 1 |
139 | # ifndef EV_USE_INOTIFY |
110 | # else |
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111 | # define EV_USE_INOTIFY 0 |
140 | # define EV_USE_INOTIFY EV_FEATURE_OS |
112 | # endif |
141 | # endif |
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142 | # else |
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143 | # undef EV_USE_INOTIFY |
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144 | # define EV_USE_INOTIFY 0 |
113 | # endif |
145 | # endif |
114 | |
146 | |
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147 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
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148 | # ifndef EV_USE_SIGNALFD |
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149 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
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150 | # endif |
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151 | # else |
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152 | # undef EV_USE_SIGNALFD |
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153 | # define EV_USE_SIGNALFD 0 |
115 | #endif |
154 | # endif |
116 | |
155 | |
117 | #include <math.h> |
156 | # if HAVE_EVENTFD |
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157 | # ifndef EV_USE_EVENTFD |
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158 | # define EV_USE_EVENTFD EV_FEATURE_OS |
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159 | # endif |
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160 | # else |
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161 | # undef EV_USE_EVENTFD |
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162 | # define EV_USE_EVENTFD 0 |
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163 | # endif |
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164 | |
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165 | #endif |
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166 | |
118 | #include <stdlib.h> |
167 | #include <stdlib.h> |
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168 | #include <string.h> |
119 | #include <fcntl.h> |
169 | #include <fcntl.h> |
120 | #include <stddef.h> |
170 | #include <stddef.h> |
121 | |
171 | |
122 | #include <stdio.h> |
172 | #include <stdio.h> |
123 | |
173 | |
124 | #include <assert.h> |
174 | #include <assert.h> |
125 | #include <errno.h> |
175 | #include <errno.h> |
126 | #include <sys/types.h> |
176 | #include <sys/types.h> |
127 | #include <time.h> |
177 | #include <time.h> |
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178 | #include <limits.h> |
128 | |
179 | |
129 | #include <signal.h> |
180 | #include <signal.h> |
130 | |
181 | |
131 | #ifdef EV_H |
182 | #ifdef EV_H |
132 | # include EV_H |
183 | # include EV_H |
133 | #else |
184 | #else |
134 | # include "ev.h" |
185 | # include "ev.h" |
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186 | #endif |
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187 | |
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188 | #if EV_NO_THREADS |
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189 | # undef EV_NO_SMP |
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190 | # define EV_NO_SMP 1 |
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191 | # undef ECB_NO_THREADS |
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192 | # define ECB_NO_THREADS 1 |
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193 | #endif |
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194 | #if EV_NO_SMP |
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195 | # undef EV_NO_SMP |
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196 | # define ECB_NO_SMP 1 |
135 | #endif |
197 | #endif |
136 | |
198 | |
137 | #ifndef _WIN32 |
199 | #ifndef _WIN32 |
138 | # include <sys/time.h> |
200 | # include <sys/time.h> |
139 | # include <sys/wait.h> |
201 | # include <sys/wait.h> |
140 | # include <unistd.h> |
202 | # include <unistd.h> |
141 | #else |
203 | #else |
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204 | # include <io.h> |
142 | # define WIN32_LEAN_AND_MEAN |
205 | # define WIN32_LEAN_AND_MEAN |
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206 | # include <winsock2.h> |
143 | # include <windows.h> |
207 | # include <windows.h> |
144 | # ifndef EV_SELECT_IS_WINSOCKET |
208 | # ifndef EV_SELECT_IS_WINSOCKET |
145 | # define EV_SELECT_IS_WINSOCKET 1 |
209 | # define EV_SELECT_IS_WINSOCKET 1 |
146 | # endif |
210 | # endif |
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211 | # undef EV_AVOID_STDIO |
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212 | #endif |
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213 | |
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214 | /* OS X, in its infinite idiocy, actually HARDCODES |
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215 | * a limit of 1024 into their select. Where people have brains, |
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216 | * OS X engineers apparently have a vacuum. Or maybe they were |
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217 | * ordered to have a vacuum, or they do anything for money. |
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218 | * This might help. Or not. |
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219 | */ |
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220 | #define _DARWIN_UNLIMITED_SELECT 1 |
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221 | |
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222 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
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223 | |
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224 | /* try to deduce the maximum number of signals on this platform */ |
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225 | #if defined EV_NSIG |
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226 | /* use what's provided */ |
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227 | #elif defined NSIG |
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228 | # define EV_NSIG (NSIG) |
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229 | #elif defined _NSIG |
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230 | # define EV_NSIG (_NSIG) |
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231 | #elif defined SIGMAX |
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232 | # define EV_NSIG (SIGMAX+1) |
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233 | #elif defined SIG_MAX |
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234 | # define EV_NSIG (SIG_MAX+1) |
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235 | #elif defined _SIG_MAX |
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236 | # define EV_NSIG (_SIG_MAX+1) |
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237 | #elif defined MAXSIG |
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238 | # define EV_NSIG (MAXSIG+1) |
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239 | #elif defined MAX_SIG |
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240 | # define EV_NSIG (MAX_SIG+1) |
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241 | #elif defined SIGARRAYSIZE |
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242 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
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243 | #elif defined _sys_nsig |
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244 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
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245 | #else |
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246 | # error "unable to find value for NSIG, please report" |
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247 | /* to make it compile regardless, just remove the above line, */ |
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248 | /* but consider reporting it, too! :) */ |
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249 | # define EV_NSIG 65 |
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250 | #endif |
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251 | |
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252 | #ifndef EV_USE_FLOOR |
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253 | # define EV_USE_FLOOR 0 |
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254 | #endif |
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255 | |
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256 | #ifndef EV_USE_CLOCK_SYSCALL |
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257 | # if __linux && __GLIBC__ >= 2 |
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258 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
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259 | # else |
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260 | # define EV_USE_CLOCK_SYSCALL 0 |
147 | #endif |
261 | # endif |
148 | |
262 | #endif |
149 | /**/ |
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150 | |
263 | |
151 | #ifndef EV_USE_MONOTONIC |
264 | #ifndef EV_USE_MONOTONIC |
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265 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
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266 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
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267 | # else |
152 | # define EV_USE_MONOTONIC 0 |
268 | # define EV_USE_MONOTONIC 0 |
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269 | # endif |
153 | #endif |
270 | #endif |
154 | |
271 | |
155 | #ifndef EV_USE_REALTIME |
272 | #ifndef EV_USE_REALTIME |
156 | # define EV_USE_REALTIME 0 |
273 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
157 | #endif |
274 | #endif |
158 | |
275 | |
159 | #ifndef EV_USE_NANOSLEEP |
276 | #ifndef EV_USE_NANOSLEEP |
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277 | # if _POSIX_C_SOURCE >= 199309L |
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278 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
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279 | # else |
160 | # define EV_USE_NANOSLEEP 0 |
280 | # define EV_USE_NANOSLEEP 0 |
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281 | # endif |
161 | #endif |
282 | #endif |
162 | |
283 | |
163 | #ifndef EV_USE_SELECT |
284 | #ifndef EV_USE_SELECT |
164 | # define EV_USE_SELECT 1 |
285 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
165 | #endif |
286 | #endif |
166 | |
287 | |
167 | #ifndef EV_USE_POLL |
288 | #ifndef EV_USE_POLL |
168 | # ifdef _WIN32 |
289 | # ifdef _WIN32 |
169 | # define EV_USE_POLL 0 |
290 | # define EV_USE_POLL 0 |
170 | # else |
291 | # else |
171 | # define EV_USE_POLL 1 |
292 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
172 | # endif |
293 | # endif |
173 | #endif |
294 | #endif |
174 | |
295 | |
175 | #ifndef EV_USE_EPOLL |
296 | #ifndef EV_USE_EPOLL |
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297 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
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298 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
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299 | # else |
176 | # define EV_USE_EPOLL 0 |
300 | # define EV_USE_EPOLL 0 |
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301 | # endif |
177 | #endif |
302 | #endif |
178 | |
303 | |
179 | #ifndef EV_USE_KQUEUE |
304 | #ifndef EV_USE_KQUEUE |
180 | # define EV_USE_KQUEUE 0 |
305 | # define EV_USE_KQUEUE 0 |
181 | #endif |
306 | #endif |
… | |
… | |
183 | #ifndef EV_USE_PORT |
308 | #ifndef EV_USE_PORT |
184 | # define EV_USE_PORT 0 |
309 | # define EV_USE_PORT 0 |
185 | #endif |
310 | #endif |
186 | |
311 | |
187 | #ifndef EV_USE_INOTIFY |
312 | #ifndef EV_USE_INOTIFY |
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313 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
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314 | # define EV_USE_INOTIFY EV_FEATURE_OS |
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315 | # else |
188 | # define EV_USE_INOTIFY 0 |
316 | # define EV_USE_INOTIFY 0 |
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317 | # endif |
189 | #endif |
318 | #endif |
190 | |
319 | |
191 | #ifndef EV_PID_HASHSIZE |
320 | #ifndef EV_PID_HASHSIZE |
192 | # if EV_MINIMAL |
321 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
193 | # define EV_PID_HASHSIZE 1 |
322 | #endif |
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323 | |
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324 | #ifndef EV_INOTIFY_HASHSIZE |
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325 | # define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
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326 | #endif |
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327 | |
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328 | #ifndef EV_USE_EVENTFD |
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329 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
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330 | # define EV_USE_EVENTFD EV_FEATURE_OS |
194 | # else |
331 | # else |
195 | # define EV_PID_HASHSIZE 16 |
332 | # define EV_USE_EVENTFD 0 |
196 | # endif |
333 | # endif |
197 | #endif |
334 | #endif |
198 | |
335 | |
199 | #ifndef EV_INOTIFY_HASHSIZE |
336 | #ifndef EV_USE_SIGNALFD |
200 | # if EV_MINIMAL |
337 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
201 | # define EV_INOTIFY_HASHSIZE 1 |
338 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
202 | # else |
339 | # else |
203 | # define EV_INOTIFY_HASHSIZE 16 |
340 | # define EV_USE_SIGNALFD 0 |
204 | # endif |
341 | # endif |
205 | #endif |
342 | #endif |
206 | |
343 | |
207 | /**/ |
344 | #if 0 /* debugging */ |
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345 | # define EV_VERIFY 3 |
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346 | # define EV_USE_4HEAP 1 |
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347 | # define EV_HEAP_CACHE_AT 1 |
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348 | #endif |
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349 | |
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350 | #ifndef EV_VERIFY |
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351 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
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352 | #endif |
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353 | |
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354 | #ifndef EV_USE_4HEAP |
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355 | # define EV_USE_4HEAP EV_FEATURE_DATA |
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356 | #endif |
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357 | |
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358 | #ifndef EV_HEAP_CACHE_AT |
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359 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
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360 | #endif |
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361 | |
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362 | #ifdef ANDROID |
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363 | /* supposedly, android doesn't typedef fd_mask */ |
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364 | # undef EV_USE_SELECT |
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365 | # define EV_USE_SELECT 0 |
|
|
366 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
|
|
367 | # undef EV_USE_CLOCK_SYSCALL |
|
|
368 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
369 | #endif |
|
|
370 | |
|
|
371 | /* aix's poll.h seems to cause lots of trouble */ |
|
|
372 | #ifdef _AIX |
|
|
373 | /* AIX has a completely broken poll.h header */ |
|
|
374 | # undef EV_USE_POLL |
|
|
375 | # define EV_USE_POLL 0 |
|
|
376 | #endif |
|
|
377 | |
|
|
378 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
|
|
379 | /* which makes programs even slower. might work on other unices, too. */ |
|
|
380 | #if EV_USE_CLOCK_SYSCALL |
|
|
381 | # include <sys/syscall.h> |
|
|
382 | # ifdef SYS_clock_gettime |
|
|
383 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
|
|
384 | # undef EV_USE_MONOTONIC |
|
|
385 | # define EV_USE_MONOTONIC 1 |
|
|
386 | # else |
|
|
387 | # undef EV_USE_CLOCK_SYSCALL |
|
|
388 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
389 | # endif |
|
|
390 | #endif |
|
|
391 | |
|
|
392 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
208 | |
393 | |
209 | #ifndef CLOCK_MONOTONIC |
394 | #ifndef CLOCK_MONOTONIC |
210 | # undef EV_USE_MONOTONIC |
395 | # undef EV_USE_MONOTONIC |
211 | # define EV_USE_MONOTONIC 0 |
396 | # define EV_USE_MONOTONIC 0 |
212 | #endif |
397 | #endif |
… | |
… | |
220 | # undef EV_USE_INOTIFY |
405 | # undef EV_USE_INOTIFY |
221 | # define EV_USE_INOTIFY 0 |
406 | # define EV_USE_INOTIFY 0 |
222 | #endif |
407 | #endif |
223 | |
408 | |
224 | #if !EV_USE_NANOSLEEP |
409 | #if !EV_USE_NANOSLEEP |
225 | # ifndef _WIN32 |
410 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
|
|
411 | # if !defined _WIN32 && !defined __hpux |
226 | # include <sys/select.h> |
412 | # include <sys/select.h> |
227 | # endif |
413 | # endif |
228 | #endif |
414 | #endif |
229 | |
415 | |
230 | #if EV_USE_INOTIFY |
416 | #if EV_USE_INOTIFY |
|
|
417 | # include <sys/statfs.h> |
231 | # include <sys/inotify.h> |
418 | # include <sys/inotify.h> |
|
|
419 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
|
|
420 | # ifndef IN_DONT_FOLLOW |
|
|
421 | # undef EV_USE_INOTIFY |
|
|
422 | # define EV_USE_INOTIFY 0 |
232 | #endif |
423 | # endif |
|
|
424 | #endif |
233 | |
425 | |
234 | #if EV_SELECT_IS_WINSOCKET |
426 | #if EV_USE_EVENTFD |
|
|
427 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
235 | # include <winsock.h> |
428 | # include <stdint.h> |
|
|
429 | # ifndef EFD_NONBLOCK |
|
|
430 | # define EFD_NONBLOCK O_NONBLOCK |
|
|
431 | # endif |
|
|
432 | # ifndef EFD_CLOEXEC |
|
|
433 | # ifdef O_CLOEXEC |
|
|
434 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
435 | # else |
|
|
436 | # define EFD_CLOEXEC 02000000 |
|
|
437 | # endif |
|
|
438 | # endif |
|
|
439 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
|
|
440 | #endif |
|
|
441 | |
|
|
442 | #if EV_USE_SIGNALFD |
|
|
443 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
444 | # include <stdint.h> |
|
|
445 | # ifndef SFD_NONBLOCK |
|
|
446 | # define SFD_NONBLOCK O_NONBLOCK |
|
|
447 | # endif |
|
|
448 | # ifndef SFD_CLOEXEC |
|
|
449 | # ifdef O_CLOEXEC |
|
|
450 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
451 | # else |
|
|
452 | # define SFD_CLOEXEC 02000000 |
|
|
453 | # endif |
|
|
454 | # endif |
|
|
455 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
|
|
456 | |
|
|
457 | struct signalfd_siginfo |
|
|
458 | { |
|
|
459 | uint32_t ssi_signo; |
|
|
460 | char pad[128 - sizeof (uint32_t)]; |
|
|
461 | }; |
236 | #endif |
462 | #endif |
237 | |
463 | |
238 | /**/ |
464 | /**/ |
239 | |
465 | |
|
|
466 | #if EV_VERIFY >= 3 |
|
|
467 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
|
|
468 | #else |
|
|
469 | # define EV_FREQUENT_CHECK do { } while (0) |
|
|
470 | #endif |
|
|
471 | |
240 | /* |
472 | /* |
241 | * This is used to avoid floating point rounding problems. |
473 | * This is used to work around floating point rounding problems. |
242 | * It is added to ev_rt_now when scheduling periodics |
|
|
243 | * to ensure progress, time-wise, even when rounding |
|
|
244 | * errors are against us. |
|
|
245 | * This value is good at least till the year 4000. |
474 | * This value is good at least till the year 4000. |
246 | * Better solutions welcome. |
|
|
247 | */ |
475 | */ |
248 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
476 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
|
|
477 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
249 | |
478 | |
250 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
479 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
251 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
480 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
252 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
|
|
253 | |
481 | |
|
|
482 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
|
|
483 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
|
|
484 | |
|
|
485 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
|
|
486 | /* ECB.H BEGIN */ |
|
|
487 | /* |
|
|
488 | * libecb - http://software.schmorp.de/pkg/libecb |
|
|
489 | * |
|
|
490 | * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> |
|
|
491 | * Copyright (©) 2011 Emanuele Giaquinta |
|
|
492 | * All rights reserved. |
|
|
493 | * |
|
|
494 | * Redistribution and use in source and binary forms, with or without modifica- |
|
|
495 | * tion, are permitted provided that the following conditions are met: |
|
|
496 | * |
|
|
497 | * 1. Redistributions of source code must retain the above copyright notice, |
|
|
498 | * this list of conditions and the following disclaimer. |
|
|
499 | * |
|
|
500 | * 2. Redistributions in binary form must reproduce the above copyright |
|
|
501 | * notice, this list of conditions and the following disclaimer in the |
|
|
502 | * documentation and/or other materials provided with the distribution. |
|
|
503 | * |
|
|
504 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
|
|
505 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
|
|
506 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
|
|
507 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
|
|
508 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
|
|
509 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
|
|
510 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
|
|
511 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
|
|
512 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
|
|
513 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
|
|
514 | */ |
|
|
515 | |
|
|
516 | #ifndef ECB_H |
|
|
517 | #define ECB_H |
|
|
518 | |
|
|
519 | /* 16 bits major, 16 bits minor */ |
|
|
520 | #define ECB_VERSION 0x00010003 |
|
|
521 | |
|
|
522 | #ifdef _WIN32 |
|
|
523 | typedef signed char int8_t; |
|
|
524 | typedef unsigned char uint8_t; |
|
|
525 | typedef signed short int16_t; |
|
|
526 | typedef unsigned short uint16_t; |
|
|
527 | typedef signed int int32_t; |
|
|
528 | typedef unsigned int uint32_t; |
254 | #if __GNUC__ >= 4 |
529 | #if __GNUC__ |
255 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
530 | typedef signed long long int64_t; |
256 | # define noinline __attribute__ ((noinline)) |
531 | typedef unsigned long long uint64_t; |
|
|
532 | #else /* _MSC_VER || __BORLANDC__ */ |
|
|
533 | typedef signed __int64 int64_t; |
|
|
534 | typedef unsigned __int64 uint64_t; |
|
|
535 | #endif |
|
|
536 | #ifdef _WIN64 |
|
|
537 | #define ECB_PTRSIZE 8 |
|
|
538 | typedef uint64_t uintptr_t; |
|
|
539 | typedef int64_t intptr_t; |
|
|
540 | #else |
|
|
541 | #define ECB_PTRSIZE 4 |
|
|
542 | typedef uint32_t uintptr_t; |
|
|
543 | typedef int32_t intptr_t; |
|
|
544 | #endif |
257 | #else |
545 | #else |
258 | # define expect(expr,value) (expr) |
546 | #include <inttypes.h> |
259 | # define noinline |
547 | #if UINTMAX_MAX > 0xffffffffU |
260 | # if __STDC_VERSION__ < 199901L |
548 | #define ECB_PTRSIZE 8 |
261 | # define inline |
549 | #else |
|
|
550 | #define ECB_PTRSIZE 4 |
|
|
551 | #endif |
262 | # endif |
552 | #endif |
|
|
553 | |
|
|
554 | /* work around x32 idiocy by defining proper macros */ |
|
|
555 | #if __x86_64 || _M_AMD64 |
|
|
556 | #if __ILP32 |
|
|
557 | #define ECB_AMD64_X32 1 |
|
|
558 | #else |
|
|
559 | #define ECB_AMD64 1 |
263 | #endif |
560 | #endif |
|
|
561 | #endif |
264 | |
562 | |
|
|
563 | /* many compilers define _GNUC_ to some versions but then only implement |
|
|
564 | * what their idiot authors think are the "more important" extensions, |
|
|
565 | * causing enormous grief in return for some better fake benchmark numbers. |
|
|
566 | * or so. |
|
|
567 | * we try to detect these and simply assume they are not gcc - if they have |
|
|
568 | * an issue with that they should have done it right in the first place. |
|
|
569 | */ |
|
|
570 | #ifndef ECB_GCC_VERSION |
|
|
571 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
|
|
572 | #define ECB_GCC_VERSION(major,minor) 0 |
|
|
573 | #else |
|
|
574 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
|
|
575 | #endif |
|
|
576 | #endif |
|
|
577 | |
|
|
578 | #define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ |
|
|
579 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
|
|
580 | #define ECB_C11 (__STDC_VERSION__ >= 201112L) |
|
|
581 | #define ECB_CPP (__cplusplus+0) |
|
|
582 | #define ECB_CPP11 (__cplusplus >= 201103L) |
|
|
583 | |
|
|
584 | #if ECB_CPP |
|
|
585 | #define ECB_EXTERN_C extern "C" |
|
|
586 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
|
|
587 | #define ECB_EXTERN_C_END } |
|
|
588 | #else |
|
|
589 | #define ECB_EXTERN_C extern |
|
|
590 | #define ECB_EXTERN_C_BEG |
|
|
591 | #define ECB_EXTERN_C_END |
|
|
592 | #endif |
|
|
593 | |
|
|
594 | /*****************************************************************************/ |
|
|
595 | |
|
|
596 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
|
|
597 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
|
|
598 | |
|
|
599 | #if ECB_NO_THREADS |
|
|
600 | #define ECB_NO_SMP 1 |
|
|
601 | #endif |
|
|
602 | |
|
|
603 | #if ECB_NO_SMP |
|
|
604 | #define ECB_MEMORY_FENCE do { } while (0) |
|
|
605 | #endif |
|
|
606 | |
|
|
607 | #ifndef ECB_MEMORY_FENCE |
|
|
608 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
609 | #if __i386 || __i386__ |
|
|
610 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
|
|
611 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
612 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
613 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
|
|
614 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
|
|
615 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
616 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
617 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
|
|
618 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
619 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
|
|
620 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
|
|
621 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
|
|
622 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
|
|
623 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
|
|
624 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
|
|
625 | #elif __sparc || __sparc__ |
|
|
626 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
|
|
627 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
|
|
628 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
|
|
629 | #elif defined __s390__ || defined __s390x__ |
|
|
630 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
|
|
631 | #elif defined __mips__ |
|
|
632 | /* GNU/Linux emulates sync on mips1 architectures, so we force it's use */ |
|
|
633 | /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ |
|
|
634 | #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") |
|
|
635 | #elif defined __alpha__ |
|
|
636 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
|
|
637 | #elif defined __hppa__ |
|
|
638 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
639 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
640 | #elif defined __ia64__ |
|
|
641 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
|
|
642 | #elif defined __m68k__ |
|
|
643 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
644 | #elif defined __m88k__ |
|
|
645 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory") |
|
|
646 | #elif defined __sh__ |
|
|
647 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
648 | #endif |
|
|
649 | #endif |
|
|
650 | #endif |
|
|
651 | |
|
|
652 | #ifndef ECB_MEMORY_FENCE |
|
|
653 | #if ECB_GCC_VERSION(4,7) |
|
|
654 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
655 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
656 | |
|
|
657 | /* The __has_feature syntax from clang is so misdesigned that we cannot use it |
|
|
658 | * without risking compile time errors with other compilers. We *could* |
|
|
659 | * define our own ecb_clang_has_feature, but I just can't be bothered to work |
|
|
660 | * around this shit time and again. |
|
|
661 | * #elif defined __clang && __has_feature (cxx_atomic) |
|
|
662 | * // see comment below (stdatomic.h) about the C11 memory model. |
|
|
663 | * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
664 | */ |
|
|
665 | |
|
|
666 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
|
|
667 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
668 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
669 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
670 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
671 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
672 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
673 | #elif defined _WIN32 |
|
|
674 | #include <WinNT.h> |
|
|
675 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
676 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
677 | #include <mbarrier.h> |
|
|
678 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
|
|
679 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
|
|
680 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
|
|
681 | #elif __xlC__ |
|
|
682 | #define ECB_MEMORY_FENCE __sync () |
|
|
683 | #endif |
|
|
684 | #endif |
|
|
685 | |
|
|
686 | #ifndef ECB_MEMORY_FENCE |
|
|
687 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
|
|
688 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
|
|
689 | /* not just C11 atomics and atomic accesses */ |
|
|
690 | #include <stdatomic.h> |
|
|
691 | /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */ |
|
|
692 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
|
|
693 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
|
|
694 | /* for most usages, or gcc and clang have a bug */ |
|
|
695 | /* I *currently* lean towards the latter, and inefficiently implement */ |
|
|
696 | /* all three of ecb's fences as a seq_cst fence */ |
|
|
697 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
698 | #endif |
|
|
699 | #endif |
|
|
700 | |
|
|
701 | #ifndef ECB_MEMORY_FENCE |
|
|
702 | #if !ECB_AVOID_PTHREADS |
|
|
703 | /* |
|
|
704 | * if you get undefined symbol references to pthread_mutex_lock, |
|
|
705 | * or failure to find pthread.h, then you should implement |
|
|
706 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
|
707 | * OR provide pthread.h and link against the posix thread library |
|
|
708 | * of your system. |
|
|
709 | */ |
|
|
710 | #include <pthread.h> |
|
|
711 | #define ECB_NEEDS_PTHREADS 1 |
|
|
712 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
|
|
713 | |
|
|
714 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
715 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
716 | #endif |
|
|
717 | #endif |
|
|
718 | |
|
|
719 | #if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE |
|
|
720 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
721 | #endif |
|
|
722 | |
|
|
723 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
|
|
724 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
725 | #endif |
|
|
726 | |
|
|
727 | /*****************************************************************************/ |
|
|
728 | |
|
|
729 | #if __cplusplus |
|
|
730 | #define ecb_inline static inline |
|
|
731 | #elif ECB_GCC_VERSION(2,5) |
|
|
732 | #define ecb_inline static __inline__ |
|
|
733 | #elif ECB_C99 |
|
|
734 | #define ecb_inline static inline |
|
|
735 | #else |
|
|
736 | #define ecb_inline static |
|
|
737 | #endif |
|
|
738 | |
|
|
739 | #if ECB_GCC_VERSION(3,3) |
|
|
740 | #define ecb_restrict __restrict__ |
|
|
741 | #elif ECB_C99 |
|
|
742 | #define ecb_restrict restrict |
|
|
743 | #else |
|
|
744 | #define ecb_restrict |
|
|
745 | #endif |
|
|
746 | |
|
|
747 | typedef int ecb_bool; |
|
|
748 | |
|
|
749 | #define ECB_CONCAT_(a, b) a ## b |
|
|
750 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
751 | #define ECB_STRINGIFY_(a) # a |
|
|
752 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
753 | |
|
|
754 | #define ecb_function_ ecb_inline |
|
|
755 | |
|
|
756 | #if ECB_GCC_VERSION(3,1) |
|
|
757 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
|
|
758 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
759 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
760 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
761 | #else |
|
|
762 | #define ecb_attribute(attrlist) |
|
|
763 | #define ecb_is_constant(expr) 0 |
|
|
764 | #define ecb_expect(expr,value) (expr) |
|
|
765 | #define ecb_prefetch(addr,rw,locality) |
|
|
766 | #endif |
|
|
767 | |
|
|
768 | /* no emulation for ecb_decltype */ |
|
|
769 | #if ECB_GCC_VERSION(4,5) |
|
|
770 | #define ecb_decltype(x) __decltype(x) |
|
|
771 | #elif ECB_GCC_VERSION(3,0) |
|
|
772 | #define ecb_decltype(x) __typeof(x) |
|
|
773 | #endif |
|
|
774 | |
|
|
775 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
776 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
777 | #define ecb_const ecb_attribute ((__const__)) |
|
|
778 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
779 | |
|
|
780 | #if ECB_C11 |
|
|
781 | #define ecb_noreturn _Noreturn |
|
|
782 | #else |
|
|
783 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
784 | #endif |
|
|
785 | |
|
|
786 | #if ECB_GCC_VERSION(4,3) |
|
|
787 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
788 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
789 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
790 | #else |
|
|
791 | #define ecb_artificial |
|
|
792 | #define ecb_hot |
|
|
793 | #define ecb_cold |
|
|
794 | #endif |
|
|
795 | |
|
|
796 | /* put around conditional expressions if you are very sure that the */ |
|
|
797 | /* expression is mostly true or mostly false. note that these return */ |
|
|
798 | /* booleans, not the expression. */ |
265 | #define expect_false(expr) expect ((expr) != 0, 0) |
799 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
266 | #define expect_true(expr) expect ((expr) != 0, 1) |
800 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
801 | /* for compatibility to the rest of the world */ |
|
|
802 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
803 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
|
|
804 | |
|
|
805 | /* count trailing zero bits and count # of one bits */ |
|
|
806 | #if ECB_GCC_VERSION(3,4) |
|
|
807 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
808 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
|
|
809 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
810 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
811 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
812 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
813 | /* no popcountll */ |
|
|
814 | #else |
|
|
815 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
|
|
816 | ecb_function_ int |
|
|
817 | ecb_ctz32 (uint32_t x) |
|
|
818 | { |
|
|
819 | int r = 0; |
|
|
820 | |
|
|
821 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
822 | |
|
|
823 | #if ECB_branchless_on_i386 |
|
|
824 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
825 | r += !!(x & 0xcccccccc) << 1; |
|
|
826 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
827 | r += !!(x & 0xff00ff00) << 3; |
|
|
828 | r += !!(x & 0xffff0000) << 4; |
|
|
829 | #else |
|
|
830 | if (x & 0xaaaaaaaa) r += 1; |
|
|
831 | if (x & 0xcccccccc) r += 2; |
|
|
832 | if (x & 0xf0f0f0f0) r += 4; |
|
|
833 | if (x & 0xff00ff00) r += 8; |
|
|
834 | if (x & 0xffff0000) r += 16; |
|
|
835 | #endif |
|
|
836 | |
|
|
837 | return r; |
|
|
838 | } |
|
|
839 | |
|
|
840 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
|
|
841 | ecb_function_ int |
|
|
842 | ecb_ctz64 (uint64_t x) |
|
|
843 | { |
|
|
844 | int shift = x & 0xffffffffU ? 0 : 32; |
|
|
845 | return ecb_ctz32 (x >> shift) + shift; |
|
|
846 | } |
|
|
847 | |
|
|
848 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
|
|
849 | ecb_function_ int |
|
|
850 | ecb_popcount32 (uint32_t x) |
|
|
851 | { |
|
|
852 | x -= (x >> 1) & 0x55555555; |
|
|
853 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
854 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
855 | x *= 0x01010101; |
|
|
856 | |
|
|
857 | return x >> 24; |
|
|
858 | } |
|
|
859 | |
|
|
860 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
|
|
861 | ecb_function_ int ecb_ld32 (uint32_t x) |
|
|
862 | { |
|
|
863 | int r = 0; |
|
|
864 | |
|
|
865 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
866 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
867 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
868 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
869 | if (x >> 1) { r += 1; } |
|
|
870 | |
|
|
871 | return r; |
|
|
872 | } |
|
|
873 | |
|
|
874 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
|
|
875 | ecb_function_ int ecb_ld64 (uint64_t x) |
|
|
876 | { |
|
|
877 | int r = 0; |
|
|
878 | |
|
|
879 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
880 | |
|
|
881 | return r + ecb_ld32 (x); |
|
|
882 | } |
|
|
883 | #endif |
|
|
884 | |
|
|
885 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; |
|
|
886 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
|
|
887 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; |
|
|
888 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
|
|
889 | |
|
|
890 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
|
|
891 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
|
|
892 | { |
|
|
893 | return ( (x * 0x0802U & 0x22110U) |
|
|
894 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
|
|
895 | } |
|
|
896 | |
|
|
897 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
|
|
898 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
|
|
899 | { |
|
|
900 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
|
|
901 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
|
|
902 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
|
|
903 | x = ( x >> 8 ) | ( x << 8); |
|
|
904 | |
|
|
905 | return x; |
|
|
906 | } |
|
|
907 | |
|
|
908 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
|
|
909 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
|
|
910 | { |
|
|
911 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
|
|
912 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
|
|
913 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
|
|
914 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
|
|
915 | x = ( x >> 16 ) | ( x << 16); |
|
|
916 | |
|
|
917 | return x; |
|
|
918 | } |
|
|
919 | |
|
|
920 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
921 | /* so for this version we are lazy */ |
|
|
922 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
|
|
923 | ecb_function_ int |
|
|
924 | ecb_popcount64 (uint64_t x) |
|
|
925 | { |
|
|
926 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
927 | } |
|
|
928 | |
|
|
929 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
|
|
930 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
|
|
931 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
|
|
932 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
|
|
933 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
|
|
934 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
|
|
935 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
|
|
936 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
|
|
937 | |
|
|
938 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
|
|
939 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
|
|
940 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
|
|
941 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
|
|
942 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
|
|
943 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
|
|
944 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
|
|
945 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
|
|
946 | |
|
|
947 | #if ECB_GCC_VERSION(4,3) |
|
|
948 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
949 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
|
|
950 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
951 | #else |
|
|
952 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
|
|
953 | ecb_function_ uint16_t |
|
|
954 | ecb_bswap16 (uint16_t x) |
|
|
955 | { |
|
|
956 | return ecb_rotl16 (x, 8); |
|
|
957 | } |
|
|
958 | |
|
|
959 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
|
|
960 | ecb_function_ uint32_t |
|
|
961 | ecb_bswap32 (uint32_t x) |
|
|
962 | { |
|
|
963 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
|
|
964 | } |
|
|
965 | |
|
|
966 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
|
|
967 | ecb_function_ uint64_t |
|
|
968 | ecb_bswap64 (uint64_t x) |
|
|
969 | { |
|
|
970 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
|
|
971 | } |
|
|
972 | #endif |
|
|
973 | |
|
|
974 | #if ECB_GCC_VERSION(4,5) |
|
|
975 | #define ecb_unreachable() __builtin_unreachable () |
|
|
976 | #else |
|
|
977 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
978 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
|
|
979 | ecb_inline void ecb_unreachable (void) { } |
|
|
980 | #endif |
|
|
981 | |
|
|
982 | /* try to tell the compiler that some condition is definitely true */ |
|
|
983 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
|
|
984 | |
|
|
985 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
|
|
986 | ecb_inline unsigned char |
|
|
987 | ecb_byteorder_helper (void) |
|
|
988 | { |
|
|
989 | /* the union code still generates code under pressure in gcc, */ |
|
|
990 | /* but less than using pointers, and always seems to */ |
|
|
991 | /* successfully return a constant. */ |
|
|
992 | /* the reason why we have this horrible preprocessor mess */ |
|
|
993 | /* is to avoid it in all cases, at least on common architectures */ |
|
|
994 | /* or when using a recent enough gcc version (>= 4.6) */ |
|
|
995 | #if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64 |
|
|
996 | return 0x44; |
|
|
997 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ |
|
|
998 | return 0x44; |
|
|
999 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ |
|
|
1000 | return 0x11; |
|
|
1001 | #else |
|
|
1002 | union |
|
|
1003 | { |
|
|
1004 | uint32_t i; |
|
|
1005 | uint8_t c; |
|
|
1006 | } u = { 0x11223344 }; |
|
|
1007 | return u.c; |
|
|
1008 | #endif |
|
|
1009 | } |
|
|
1010 | |
|
|
1011 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
|
|
1012 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
|
|
1013 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
|
|
1014 | ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
|
|
1015 | |
|
|
1016 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
1017 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
1018 | #else |
|
|
1019 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
1020 | #endif |
|
|
1021 | |
|
|
1022 | #if __cplusplus |
|
|
1023 | template<typename T> |
|
|
1024 | static inline T ecb_div_rd (T val, T div) |
|
|
1025 | { |
|
|
1026 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
|
|
1027 | } |
|
|
1028 | template<typename T> |
|
|
1029 | static inline T ecb_div_ru (T val, T div) |
|
|
1030 | { |
|
|
1031 | return val < 0 ? - ((-val ) / div) : (val + div - 1) / div; |
|
|
1032 | } |
|
|
1033 | #else |
|
|
1034 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
|
|
1035 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
|
|
1036 | #endif |
|
|
1037 | |
|
|
1038 | #if ecb_cplusplus_does_not_suck |
|
|
1039 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
1040 | template<typename T, int N> |
|
|
1041 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
1042 | { |
|
|
1043 | return N; |
|
|
1044 | } |
|
|
1045 | #else |
|
|
1046 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
1047 | #endif |
|
|
1048 | |
|
|
1049 | /*******************************************************************************/ |
|
|
1050 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
|
|
1051 | |
|
|
1052 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
|
|
1053 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
|
|
1054 | #if 0 \ |
|
|
1055 | || __i386 || __i386__ \ |
|
|
1056 | || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ |
|
|
1057 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
|
|
1058 | || defined __arm__ && defined __ARM_EABI__ \ |
|
|
1059 | || defined __s390__ || defined __s390x__ \ |
|
|
1060 | || defined __mips__ \ |
|
|
1061 | || defined __alpha__ \ |
|
|
1062 | || defined __hppa__ \ |
|
|
1063 | || defined __ia64__ \ |
|
|
1064 | || defined __m68k__ \ |
|
|
1065 | || defined __m88k__ \ |
|
|
1066 | || defined __sh__ \ |
|
|
1067 | || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 |
|
|
1068 | #define ECB_STDFP 1 |
|
|
1069 | #include <string.h> /* for memcpy */ |
|
|
1070 | #else |
|
|
1071 | #define ECB_STDFP 0 |
|
|
1072 | #include <math.h> /* for frexp*, ldexp* */ |
|
|
1073 | #endif |
|
|
1074 | |
|
|
1075 | #ifndef ECB_NO_LIBM |
|
|
1076 | |
|
|
1077 | /* convert a float to ieee single/binary32 */ |
|
|
1078 | ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const; |
|
|
1079 | ecb_function_ uint32_t |
|
|
1080 | ecb_float_to_binary32 (float x) |
|
|
1081 | { |
|
|
1082 | uint32_t r; |
|
|
1083 | |
|
|
1084 | #if ECB_STDFP |
|
|
1085 | memcpy (&r, &x, 4); |
|
|
1086 | #else |
|
|
1087 | /* slow emulation, works for anything but -0 */ |
|
|
1088 | uint32_t m; |
|
|
1089 | int e; |
|
|
1090 | |
|
|
1091 | if (x == 0e0f ) return 0x00000000U; |
|
|
1092 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
|
|
1093 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
|
|
1094 | if (x != x ) return 0x7fbfffffU; |
|
|
1095 | |
|
|
1096 | m = frexpf (x, &e) * 0x1000000U; |
|
|
1097 | |
|
|
1098 | r = m & 0x80000000U; |
|
|
1099 | |
|
|
1100 | if (r) |
|
|
1101 | m = -m; |
|
|
1102 | |
|
|
1103 | if (e <= -126) |
|
|
1104 | { |
|
|
1105 | m &= 0xffffffU; |
|
|
1106 | m >>= (-125 - e); |
|
|
1107 | e = -126; |
|
|
1108 | } |
|
|
1109 | |
|
|
1110 | r |= (e + 126) << 23; |
|
|
1111 | r |= m & 0x7fffffU; |
|
|
1112 | #endif |
|
|
1113 | |
|
|
1114 | return r; |
|
|
1115 | } |
|
|
1116 | |
|
|
1117 | /* converts an ieee single/binary32 to a float */ |
|
|
1118 | ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const; |
|
|
1119 | ecb_function_ float |
|
|
1120 | ecb_binary32_to_float (uint32_t x) |
|
|
1121 | { |
|
|
1122 | float r; |
|
|
1123 | |
|
|
1124 | #if ECB_STDFP |
|
|
1125 | memcpy (&r, &x, 4); |
|
|
1126 | #else |
|
|
1127 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1128 | int neg = x >> 31; |
|
|
1129 | int e = (x >> 23) & 0xffU; |
|
|
1130 | |
|
|
1131 | x &= 0x7fffffU; |
|
|
1132 | |
|
|
1133 | if (e) |
|
|
1134 | x |= 0x800000U; |
|
|
1135 | else |
|
|
1136 | e = 1; |
|
|
1137 | |
|
|
1138 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
|
|
1139 | r = ldexpf (x * (0.5f / 0x800000U), e - 126); |
|
|
1140 | |
|
|
1141 | r = neg ? -r : r; |
|
|
1142 | #endif |
|
|
1143 | |
|
|
1144 | return r; |
|
|
1145 | } |
|
|
1146 | |
|
|
1147 | /* convert a double to ieee double/binary64 */ |
|
|
1148 | ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const; |
|
|
1149 | ecb_function_ uint64_t |
|
|
1150 | ecb_double_to_binary64 (double x) |
|
|
1151 | { |
|
|
1152 | uint64_t r; |
|
|
1153 | |
|
|
1154 | #if ECB_STDFP |
|
|
1155 | memcpy (&r, &x, 8); |
|
|
1156 | #else |
|
|
1157 | /* slow emulation, works for anything but -0 */ |
|
|
1158 | uint64_t m; |
|
|
1159 | int e; |
|
|
1160 | |
|
|
1161 | if (x == 0e0 ) return 0x0000000000000000U; |
|
|
1162 | if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U; |
|
|
1163 | if (x < -1.79769313486231470e+308) return 0xfff0000000000000U; |
|
|
1164 | if (x != x ) return 0X7ff7ffffffffffffU; |
|
|
1165 | |
|
|
1166 | m = frexp (x, &e) * 0x20000000000000U; |
|
|
1167 | |
|
|
1168 | r = m & 0x8000000000000000;; |
|
|
1169 | |
|
|
1170 | if (r) |
|
|
1171 | m = -m; |
|
|
1172 | |
|
|
1173 | if (e <= -1022) |
|
|
1174 | { |
|
|
1175 | m &= 0x1fffffffffffffU; |
|
|
1176 | m >>= (-1021 - e); |
|
|
1177 | e = -1022; |
|
|
1178 | } |
|
|
1179 | |
|
|
1180 | r |= ((uint64_t)(e + 1022)) << 52; |
|
|
1181 | r |= m & 0xfffffffffffffU; |
|
|
1182 | #endif |
|
|
1183 | |
|
|
1184 | return r; |
|
|
1185 | } |
|
|
1186 | |
|
|
1187 | /* converts an ieee double/binary64 to a double */ |
|
|
1188 | ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const; |
|
|
1189 | ecb_function_ double |
|
|
1190 | ecb_binary64_to_double (uint64_t x) |
|
|
1191 | { |
|
|
1192 | double r; |
|
|
1193 | |
|
|
1194 | #if ECB_STDFP |
|
|
1195 | memcpy (&r, &x, 8); |
|
|
1196 | #else |
|
|
1197 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1198 | int neg = x >> 63; |
|
|
1199 | int e = (x >> 52) & 0x7ffU; |
|
|
1200 | |
|
|
1201 | x &= 0xfffffffffffffU; |
|
|
1202 | |
|
|
1203 | if (e) |
|
|
1204 | x |= 0x10000000000000U; |
|
|
1205 | else |
|
|
1206 | e = 1; |
|
|
1207 | |
|
|
1208 | /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */ |
|
|
1209 | r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022); |
|
|
1210 | |
|
|
1211 | r = neg ? -r : r; |
|
|
1212 | #endif |
|
|
1213 | |
|
|
1214 | return r; |
|
|
1215 | } |
|
|
1216 | |
|
|
1217 | #endif |
|
|
1218 | |
|
|
1219 | #endif |
|
|
1220 | |
|
|
1221 | /* ECB.H END */ |
|
|
1222 | |
|
|
1223 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
1224 | /* if your architecture doesn't need memory fences, e.g. because it is |
|
|
1225 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
|
|
1226 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
|
|
1227 | * libev, in which cases the memory fences become nops. |
|
|
1228 | * alternatively, you can remove this #error and link against libpthread, |
|
|
1229 | * which will then provide the memory fences. |
|
|
1230 | */ |
|
|
1231 | # error "memory fences not defined for your architecture, please report" |
|
|
1232 | #endif |
|
|
1233 | |
|
|
1234 | #ifndef ECB_MEMORY_FENCE |
|
|
1235 | # define ECB_MEMORY_FENCE do { } while (0) |
|
|
1236 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
1237 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
1238 | #endif |
|
|
1239 | |
|
|
1240 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
1241 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
1242 | #define noinline ecb_noinline |
|
|
1243 | |
267 | #define inline_size static inline |
1244 | #define inline_size ecb_inline |
268 | |
1245 | |
269 | #if EV_MINIMAL |
1246 | #if EV_FEATURE_CODE |
|
|
1247 | # define inline_speed ecb_inline |
|
|
1248 | #else |
270 | # define inline_speed static noinline |
1249 | # define inline_speed static noinline |
|
|
1250 | #endif |
|
|
1251 | |
|
|
1252 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
1253 | |
|
|
1254 | #if EV_MINPRI == EV_MAXPRI |
|
|
1255 | # define ABSPRI(w) (((W)w), 0) |
271 | #else |
1256 | #else |
272 | # define inline_speed static inline |
|
|
273 | #endif |
|
|
274 | |
|
|
275 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
276 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
1257 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
1258 | #endif |
277 | |
1259 | |
278 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
1260 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
279 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
1261 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
280 | |
1262 | |
281 | typedef ev_watcher *W; |
1263 | typedef ev_watcher *W; |
282 | typedef ev_watcher_list *WL; |
1264 | typedef ev_watcher_list *WL; |
283 | typedef ev_watcher_time *WT; |
1265 | typedef ev_watcher_time *WT; |
284 | |
1266 | |
|
|
1267 | #define ev_active(w) ((W)(w))->active |
|
|
1268 | #define ev_at(w) ((WT)(w))->at |
|
|
1269 | |
|
|
1270 | #if EV_USE_REALTIME |
285 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
1271 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
286 | /* giving it a reasonably high chance of working on typical architetcures */ |
1272 | /* giving it a reasonably high chance of working on typical architectures */ |
|
|
1273 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
|
|
1274 | #endif |
|
|
1275 | |
|
|
1276 | #if EV_USE_MONOTONIC |
287 | static sig_atomic_t have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
1277 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
1278 | #endif |
|
|
1279 | |
|
|
1280 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
1281 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
1282 | #endif |
|
|
1283 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
1284 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
1285 | #endif |
|
|
1286 | #ifndef EV_WIN32_CLOSE_FD |
|
|
1287 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
|
|
1288 | #endif |
288 | |
1289 | |
289 | #ifdef _WIN32 |
1290 | #ifdef _WIN32 |
290 | # include "ev_win32.c" |
1291 | # include "ev_win32.c" |
291 | #endif |
1292 | #endif |
292 | |
1293 | |
293 | /*****************************************************************************/ |
1294 | /*****************************************************************************/ |
294 | |
1295 | |
|
|
1296 | /* define a suitable floor function (only used by periodics atm) */ |
|
|
1297 | |
|
|
1298 | #if EV_USE_FLOOR |
|
|
1299 | # include <math.h> |
|
|
1300 | # define ev_floor(v) floor (v) |
|
|
1301 | #else |
|
|
1302 | |
|
|
1303 | #include <float.h> |
|
|
1304 | |
|
|
1305 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1306 | static ev_tstamp noinline |
|
|
1307 | ev_floor (ev_tstamp v) |
|
|
1308 | { |
|
|
1309 | /* the choice of shift factor is not terribly important */ |
|
|
1310 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
|
|
1311 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
|
|
1312 | #else |
|
|
1313 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
|
|
1314 | #endif |
|
|
1315 | |
|
|
1316 | /* argument too large for an unsigned long? */ |
|
|
1317 | if (expect_false (v >= shift)) |
|
|
1318 | { |
|
|
1319 | ev_tstamp f; |
|
|
1320 | |
|
|
1321 | if (v == v - 1.) |
|
|
1322 | return v; /* very large number */ |
|
|
1323 | |
|
|
1324 | f = shift * ev_floor (v * (1. / shift)); |
|
|
1325 | return f + ev_floor (v - f); |
|
|
1326 | } |
|
|
1327 | |
|
|
1328 | /* special treatment for negative args? */ |
|
|
1329 | if (expect_false (v < 0.)) |
|
|
1330 | { |
|
|
1331 | ev_tstamp f = -ev_floor (-v); |
|
|
1332 | |
|
|
1333 | return f - (f == v ? 0 : 1); |
|
|
1334 | } |
|
|
1335 | |
|
|
1336 | /* fits into an unsigned long */ |
|
|
1337 | return (unsigned long)v; |
|
|
1338 | } |
|
|
1339 | |
|
|
1340 | #endif |
|
|
1341 | |
|
|
1342 | /*****************************************************************************/ |
|
|
1343 | |
|
|
1344 | #ifdef __linux |
|
|
1345 | # include <sys/utsname.h> |
|
|
1346 | #endif |
|
|
1347 | |
|
|
1348 | static unsigned int noinline ecb_cold |
|
|
1349 | ev_linux_version (void) |
|
|
1350 | { |
|
|
1351 | #ifdef __linux |
|
|
1352 | unsigned int v = 0; |
|
|
1353 | struct utsname buf; |
|
|
1354 | int i; |
|
|
1355 | char *p = buf.release; |
|
|
1356 | |
|
|
1357 | if (uname (&buf)) |
|
|
1358 | return 0; |
|
|
1359 | |
|
|
1360 | for (i = 3+1; --i; ) |
|
|
1361 | { |
|
|
1362 | unsigned int c = 0; |
|
|
1363 | |
|
|
1364 | for (;;) |
|
|
1365 | { |
|
|
1366 | if (*p >= '0' && *p <= '9') |
|
|
1367 | c = c * 10 + *p++ - '0'; |
|
|
1368 | else |
|
|
1369 | { |
|
|
1370 | p += *p == '.'; |
|
|
1371 | break; |
|
|
1372 | } |
|
|
1373 | } |
|
|
1374 | |
|
|
1375 | v = (v << 8) | c; |
|
|
1376 | } |
|
|
1377 | |
|
|
1378 | return v; |
|
|
1379 | #else |
|
|
1380 | return 0; |
|
|
1381 | #endif |
|
|
1382 | } |
|
|
1383 | |
|
|
1384 | /*****************************************************************************/ |
|
|
1385 | |
|
|
1386 | #if EV_AVOID_STDIO |
|
|
1387 | static void noinline ecb_cold |
|
|
1388 | ev_printerr (const char *msg) |
|
|
1389 | { |
|
|
1390 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
1391 | } |
|
|
1392 | #endif |
|
|
1393 | |
295 | static void (*syserr_cb)(const char *msg); |
1394 | static void (*syserr_cb)(const char *msg) EV_THROW; |
296 | |
1395 | |
297 | void |
1396 | void ecb_cold |
298 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1397 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
299 | { |
1398 | { |
300 | syserr_cb = cb; |
1399 | syserr_cb = cb; |
301 | } |
1400 | } |
302 | |
1401 | |
303 | static void noinline |
1402 | static void noinline ecb_cold |
304 | syserr (const char *msg) |
1403 | ev_syserr (const char *msg) |
305 | { |
1404 | { |
306 | if (!msg) |
1405 | if (!msg) |
307 | msg = "(libev) system error"; |
1406 | msg = "(libev) system error"; |
308 | |
1407 | |
309 | if (syserr_cb) |
1408 | if (syserr_cb) |
310 | syserr_cb (msg); |
1409 | syserr_cb (msg); |
311 | else |
1410 | else |
312 | { |
1411 | { |
|
|
1412 | #if EV_AVOID_STDIO |
|
|
1413 | ev_printerr (msg); |
|
|
1414 | ev_printerr (": "); |
|
|
1415 | ev_printerr (strerror (errno)); |
|
|
1416 | ev_printerr ("\n"); |
|
|
1417 | #else |
313 | perror (msg); |
1418 | perror (msg); |
|
|
1419 | #endif |
314 | abort (); |
1420 | abort (); |
315 | } |
1421 | } |
316 | } |
1422 | } |
317 | |
1423 | |
|
|
1424 | static void * |
|
|
1425 | ev_realloc_emul (void *ptr, long size) EV_THROW |
|
|
1426 | { |
|
|
1427 | /* some systems, notably openbsd and darwin, fail to properly |
|
|
1428 | * implement realloc (x, 0) (as required by both ansi c-89 and |
|
|
1429 | * the single unix specification, so work around them here. |
|
|
1430 | * recently, also (at least) fedora and debian started breaking it, |
|
|
1431 | * despite documenting it otherwise. |
|
|
1432 | */ |
|
|
1433 | |
|
|
1434 | if (size) |
|
|
1435 | return realloc (ptr, size); |
|
|
1436 | |
|
|
1437 | free (ptr); |
|
|
1438 | return 0; |
|
|
1439 | } |
|
|
1440 | |
318 | static void *(*alloc)(void *ptr, long size); |
1441 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
319 | |
1442 | |
320 | void |
1443 | void ecb_cold |
321 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1444 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
322 | { |
1445 | { |
323 | alloc = cb; |
1446 | alloc = cb; |
324 | } |
1447 | } |
325 | |
1448 | |
326 | inline_speed void * |
1449 | inline_speed void * |
327 | ev_realloc (void *ptr, long size) |
1450 | ev_realloc (void *ptr, long size) |
328 | { |
1451 | { |
329 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
1452 | ptr = alloc (ptr, size); |
330 | |
1453 | |
331 | if (!ptr && size) |
1454 | if (!ptr && size) |
332 | { |
1455 | { |
|
|
1456 | #if EV_AVOID_STDIO |
|
|
1457 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
|
|
1458 | #else |
333 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
1459 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
|
|
1460 | #endif |
334 | abort (); |
1461 | abort (); |
335 | } |
1462 | } |
336 | |
1463 | |
337 | return ptr; |
1464 | return ptr; |
338 | } |
1465 | } |
… | |
… | |
340 | #define ev_malloc(size) ev_realloc (0, (size)) |
1467 | #define ev_malloc(size) ev_realloc (0, (size)) |
341 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
1468 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
342 | |
1469 | |
343 | /*****************************************************************************/ |
1470 | /*****************************************************************************/ |
344 | |
1471 | |
|
|
1472 | /* set in reify when reification needed */ |
|
|
1473 | #define EV_ANFD_REIFY 1 |
|
|
1474 | |
|
|
1475 | /* file descriptor info structure */ |
345 | typedef struct |
1476 | typedef struct |
346 | { |
1477 | { |
347 | WL head; |
1478 | WL head; |
348 | unsigned char events; |
1479 | unsigned char events; /* the events watched for */ |
|
|
1480 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
|
|
1481 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
349 | unsigned char reify; |
1482 | unsigned char unused; |
|
|
1483 | #if EV_USE_EPOLL |
|
|
1484 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
1485 | #endif |
350 | #if EV_SELECT_IS_WINSOCKET |
1486 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
351 | SOCKET handle; |
1487 | SOCKET handle; |
352 | #endif |
1488 | #endif |
|
|
1489 | #if EV_USE_IOCP |
|
|
1490 | OVERLAPPED or, ow; |
|
|
1491 | #endif |
353 | } ANFD; |
1492 | } ANFD; |
354 | |
1493 | |
|
|
1494 | /* stores the pending event set for a given watcher */ |
355 | typedef struct |
1495 | typedef struct |
356 | { |
1496 | { |
357 | W w; |
1497 | W w; |
358 | int events; |
1498 | int events; /* the pending event set for the given watcher */ |
359 | } ANPENDING; |
1499 | } ANPENDING; |
360 | |
1500 | |
361 | #if EV_USE_INOTIFY |
1501 | #if EV_USE_INOTIFY |
|
|
1502 | /* hash table entry per inotify-id */ |
362 | typedef struct |
1503 | typedef struct |
363 | { |
1504 | { |
364 | WL head; |
1505 | WL head; |
365 | } ANFS; |
1506 | } ANFS; |
|
|
1507 | #endif |
|
|
1508 | |
|
|
1509 | /* Heap Entry */ |
|
|
1510 | #if EV_HEAP_CACHE_AT |
|
|
1511 | /* a heap element */ |
|
|
1512 | typedef struct { |
|
|
1513 | ev_tstamp at; |
|
|
1514 | WT w; |
|
|
1515 | } ANHE; |
|
|
1516 | |
|
|
1517 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
|
|
1518 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
|
1519 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
1520 | #else |
|
|
1521 | /* a heap element */ |
|
|
1522 | typedef WT ANHE; |
|
|
1523 | |
|
|
1524 | #define ANHE_w(he) (he) |
|
|
1525 | #define ANHE_at(he) (he)->at |
|
|
1526 | #define ANHE_at_cache(he) |
366 | #endif |
1527 | #endif |
367 | |
1528 | |
368 | #if EV_MULTIPLICITY |
1529 | #if EV_MULTIPLICITY |
369 | |
1530 | |
370 | struct ev_loop |
1531 | struct ev_loop |
… | |
… | |
376 | #undef VAR |
1537 | #undef VAR |
377 | }; |
1538 | }; |
378 | #include "ev_wrap.h" |
1539 | #include "ev_wrap.h" |
379 | |
1540 | |
380 | static struct ev_loop default_loop_struct; |
1541 | static struct ev_loop default_loop_struct; |
381 | struct ev_loop *ev_default_loop_ptr; |
1542 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
382 | |
1543 | |
383 | #else |
1544 | #else |
384 | |
1545 | |
385 | ev_tstamp ev_rt_now; |
1546 | EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ |
386 | #define VAR(name,decl) static decl; |
1547 | #define VAR(name,decl) static decl; |
387 | #include "ev_vars.h" |
1548 | #include "ev_vars.h" |
388 | #undef VAR |
1549 | #undef VAR |
389 | |
1550 | |
390 | static int ev_default_loop_ptr; |
1551 | static int ev_default_loop_ptr; |
391 | |
1552 | |
392 | #endif |
1553 | #endif |
393 | |
1554 | |
|
|
1555 | #if EV_FEATURE_API |
|
|
1556 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
1557 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
1558 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
1559 | #else |
|
|
1560 | # define EV_RELEASE_CB (void)0 |
|
|
1561 | # define EV_ACQUIRE_CB (void)0 |
|
|
1562 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
1563 | #endif |
|
|
1564 | |
|
|
1565 | #define EVBREAK_RECURSE 0x80 |
|
|
1566 | |
394 | /*****************************************************************************/ |
1567 | /*****************************************************************************/ |
395 | |
1568 | |
|
|
1569 | #ifndef EV_HAVE_EV_TIME |
396 | ev_tstamp |
1570 | ev_tstamp |
397 | ev_time (void) |
1571 | ev_time (void) EV_THROW |
398 | { |
1572 | { |
399 | #if EV_USE_REALTIME |
1573 | #if EV_USE_REALTIME |
|
|
1574 | if (expect_true (have_realtime)) |
|
|
1575 | { |
400 | struct timespec ts; |
1576 | struct timespec ts; |
401 | clock_gettime (CLOCK_REALTIME, &ts); |
1577 | clock_gettime (CLOCK_REALTIME, &ts); |
402 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
1578 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
403 | #else |
1579 | } |
|
|
1580 | #endif |
|
|
1581 | |
404 | struct timeval tv; |
1582 | struct timeval tv; |
405 | gettimeofday (&tv, 0); |
1583 | gettimeofday (&tv, 0); |
406 | return tv.tv_sec + tv.tv_usec * 1e-6; |
1584 | return tv.tv_sec + tv.tv_usec * 1e-6; |
407 | #endif |
|
|
408 | } |
1585 | } |
|
|
1586 | #endif |
409 | |
1587 | |
410 | ev_tstamp inline_size |
1588 | inline_size ev_tstamp |
411 | get_clock (void) |
1589 | get_clock (void) |
412 | { |
1590 | { |
413 | #if EV_USE_MONOTONIC |
1591 | #if EV_USE_MONOTONIC |
414 | if (expect_true (have_monotonic)) |
1592 | if (expect_true (have_monotonic)) |
415 | { |
1593 | { |
… | |
… | |
422 | return ev_time (); |
1600 | return ev_time (); |
423 | } |
1601 | } |
424 | |
1602 | |
425 | #if EV_MULTIPLICITY |
1603 | #if EV_MULTIPLICITY |
426 | ev_tstamp |
1604 | ev_tstamp |
427 | ev_now (EV_P) |
1605 | ev_now (EV_P) EV_THROW |
428 | { |
1606 | { |
429 | return ev_rt_now; |
1607 | return ev_rt_now; |
430 | } |
1608 | } |
431 | #endif |
1609 | #endif |
432 | |
1610 | |
433 | void |
1611 | void |
434 | ev_sleep (ev_tstamp delay) |
1612 | ev_sleep (ev_tstamp delay) EV_THROW |
435 | { |
1613 | { |
436 | if (delay > 0.) |
1614 | if (delay > 0.) |
437 | { |
1615 | { |
438 | #if EV_USE_NANOSLEEP |
1616 | #if EV_USE_NANOSLEEP |
439 | struct timespec ts; |
1617 | struct timespec ts; |
440 | |
1618 | |
441 | ts.tv_sec = (time_t)delay; |
1619 | EV_TS_SET (ts, delay); |
442 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
443 | |
|
|
444 | nanosleep (&ts, 0); |
1620 | nanosleep (&ts, 0); |
445 | #elif defined(_WIN32) |
1621 | #elif defined _WIN32 |
446 | Sleep (delay * 1e3); |
1622 | Sleep ((unsigned long)(delay * 1e3)); |
447 | #else |
1623 | #else |
448 | struct timeval tv; |
1624 | struct timeval tv; |
449 | |
1625 | |
450 | tv.tv_sec = (time_t)delay; |
1626 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
451 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
1627 | /* something not guaranteed by newer posix versions, but guaranteed */ |
452 | |
1628 | /* by older ones */ |
|
|
1629 | EV_TV_SET (tv, delay); |
453 | select (0, 0, 0, 0, &tv); |
1630 | select (0, 0, 0, 0, &tv); |
454 | #endif |
1631 | #endif |
455 | } |
1632 | } |
456 | } |
1633 | } |
457 | |
1634 | |
458 | /*****************************************************************************/ |
1635 | /*****************************************************************************/ |
459 | |
1636 | |
460 | int inline_size |
1637 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
|
|
1638 | |
|
|
1639 | /* find a suitable new size for the given array, */ |
|
|
1640 | /* hopefully by rounding to a nice-to-malloc size */ |
|
|
1641 | inline_size int |
461 | array_nextsize (int elem, int cur, int cnt) |
1642 | array_nextsize (int elem, int cur, int cnt) |
462 | { |
1643 | { |
463 | int ncur = cur + 1; |
1644 | int ncur = cur + 1; |
464 | |
1645 | |
465 | do |
1646 | do |
466 | ncur <<= 1; |
1647 | ncur <<= 1; |
467 | while (cnt > ncur); |
1648 | while (cnt > ncur); |
468 | |
1649 | |
469 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
1650 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
470 | if (elem * ncur > 4096) |
1651 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
471 | { |
1652 | { |
472 | ncur *= elem; |
1653 | ncur *= elem; |
473 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
1654 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
474 | ncur = ncur - sizeof (void *) * 4; |
1655 | ncur = ncur - sizeof (void *) * 4; |
475 | ncur /= elem; |
1656 | ncur /= elem; |
476 | } |
1657 | } |
477 | |
1658 | |
478 | return ncur; |
1659 | return ncur; |
479 | } |
1660 | } |
480 | |
1661 | |
481 | static noinline void * |
1662 | static void * noinline ecb_cold |
482 | array_realloc (int elem, void *base, int *cur, int cnt) |
1663 | array_realloc (int elem, void *base, int *cur, int cnt) |
483 | { |
1664 | { |
484 | *cur = array_nextsize (elem, *cur, cnt); |
1665 | *cur = array_nextsize (elem, *cur, cnt); |
485 | return ev_realloc (base, elem * *cur); |
1666 | return ev_realloc (base, elem * *cur); |
486 | } |
1667 | } |
|
|
1668 | |
|
|
1669 | #define array_init_zero(base,count) \ |
|
|
1670 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
487 | |
1671 | |
488 | #define array_needsize(type,base,cur,cnt,init) \ |
1672 | #define array_needsize(type,base,cur,cnt,init) \ |
489 | if (expect_false ((cnt) > (cur))) \ |
1673 | if (expect_false ((cnt) > (cur))) \ |
490 | { \ |
1674 | { \ |
491 | int ocur_ = (cur); \ |
1675 | int ecb_unused ocur_ = (cur); \ |
492 | (base) = (type *)array_realloc \ |
1676 | (base) = (type *)array_realloc \ |
493 | (sizeof (type), (base), &(cur), (cnt)); \ |
1677 | (sizeof (type), (base), &(cur), (cnt)); \ |
494 | init ((base) + (ocur_), (cur) - ocur_); \ |
1678 | init ((base) + (ocur_), (cur) - ocur_); \ |
495 | } |
1679 | } |
496 | |
1680 | |
… | |
… | |
503 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
1687 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
504 | } |
1688 | } |
505 | #endif |
1689 | #endif |
506 | |
1690 | |
507 | #define array_free(stem, idx) \ |
1691 | #define array_free(stem, idx) \ |
508 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
1692 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
509 | |
1693 | |
510 | /*****************************************************************************/ |
1694 | /*****************************************************************************/ |
511 | |
1695 | |
|
|
1696 | /* dummy callback for pending events */ |
|
|
1697 | static void noinline |
|
|
1698 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
1699 | { |
|
|
1700 | } |
|
|
1701 | |
512 | void noinline |
1702 | void noinline |
513 | ev_feed_event (EV_P_ void *w, int revents) |
1703 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
514 | { |
1704 | { |
515 | W w_ = (W)w; |
1705 | W w_ = (W)w; |
516 | int pri = ABSPRI (w_); |
1706 | int pri = ABSPRI (w_); |
517 | |
1707 | |
518 | if (expect_false (w_->pending)) |
1708 | if (expect_false (w_->pending)) |
… | |
… | |
522 | w_->pending = ++pendingcnt [pri]; |
1712 | w_->pending = ++pendingcnt [pri]; |
523 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
1713 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
524 | pendings [pri][w_->pending - 1].w = w_; |
1714 | pendings [pri][w_->pending - 1].w = w_; |
525 | pendings [pri][w_->pending - 1].events = revents; |
1715 | pendings [pri][w_->pending - 1].events = revents; |
526 | } |
1716 | } |
527 | } |
|
|
528 | |
1717 | |
529 | void inline_speed |
1718 | pendingpri = NUMPRI - 1; |
|
|
1719 | } |
|
|
1720 | |
|
|
1721 | inline_speed void |
|
|
1722 | feed_reverse (EV_P_ W w) |
|
|
1723 | { |
|
|
1724 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
1725 | rfeeds [rfeedcnt++] = w; |
|
|
1726 | } |
|
|
1727 | |
|
|
1728 | inline_size void |
|
|
1729 | feed_reverse_done (EV_P_ int revents) |
|
|
1730 | { |
|
|
1731 | do |
|
|
1732 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
1733 | while (rfeedcnt); |
|
|
1734 | } |
|
|
1735 | |
|
|
1736 | inline_speed void |
530 | queue_events (EV_P_ W *events, int eventcnt, int type) |
1737 | queue_events (EV_P_ W *events, int eventcnt, int type) |
531 | { |
1738 | { |
532 | int i; |
1739 | int i; |
533 | |
1740 | |
534 | for (i = 0; i < eventcnt; ++i) |
1741 | for (i = 0; i < eventcnt; ++i) |
535 | ev_feed_event (EV_A_ events [i], type); |
1742 | ev_feed_event (EV_A_ events [i], type); |
536 | } |
1743 | } |
537 | |
1744 | |
538 | /*****************************************************************************/ |
1745 | /*****************************************************************************/ |
539 | |
1746 | |
540 | void inline_size |
1747 | inline_speed void |
541 | anfds_init (ANFD *base, int count) |
|
|
542 | { |
|
|
543 | while (count--) |
|
|
544 | { |
|
|
545 | base->head = 0; |
|
|
546 | base->events = EV_NONE; |
|
|
547 | base->reify = 0; |
|
|
548 | |
|
|
549 | ++base; |
|
|
550 | } |
|
|
551 | } |
|
|
552 | |
|
|
553 | void inline_speed |
|
|
554 | fd_event (EV_P_ int fd, int revents) |
1748 | fd_event_nocheck (EV_P_ int fd, int revents) |
555 | { |
1749 | { |
556 | ANFD *anfd = anfds + fd; |
1750 | ANFD *anfd = anfds + fd; |
557 | ev_io *w; |
1751 | ev_io *w; |
558 | |
1752 | |
559 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1753 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
563 | if (ev) |
1757 | if (ev) |
564 | ev_feed_event (EV_A_ (W)w, ev); |
1758 | ev_feed_event (EV_A_ (W)w, ev); |
565 | } |
1759 | } |
566 | } |
1760 | } |
567 | |
1761 | |
|
|
1762 | /* do not submit kernel events for fds that have reify set */ |
|
|
1763 | /* because that means they changed while we were polling for new events */ |
|
|
1764 | inline_speed void |
|
|
1765 | fd_event (EV_P_ int fd, int revents) |
|
|
1766 | { |
|
|
1767 | ANFD *anfd = anfds + fd; |
|
|
1768 | |
|
|
1769 | if (expect_true (!anfd->reify)) |
|
|
1770 | fd_event_nocheck (EV_A_ fd, revents); |
|
|
1771 | } |
|
|
1772 | |
568 | void |
1773 | void |
569 | ev_feed_fd_event (EV_P_ int fd, int revents) |
1774 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW |
570 | { |
1775 | { |
571 | if (fd >= 0 && fd < anfdmax) |
1776 | if (fd >= 0 && fd < anfdmax) |
572 | fd_event (EV_A_ fd, revents); |
1777 | fd_event_nocheck (EV_A_ fd, revents); |
573 | } |
1778 | } |
574 | |
1779 | |
575 | void inline_size |
1780 | /* make sure the external fd watch events are in-sync */ |
|
|
1781 | /* with the kernel/libev internal state */ |
|
|
1782 | inline_size void |
576 | fd_reify (EV_P) |
1783 | fd_reify (EV_P) |
577 | { |
1784 | { |
578 | int i; |
1785 | int i; |
|
|
1786 | |
|
|
1787 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
1788 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1789 | { |
|
|
1790 | int fd = fdchanges [i]; |
|
|
1791 | ANFD *anfd = anfds + fd; |
|
|
1792 | |
|
|
1793 | if (anfd->reify & EV__IOFDSET && anfd->head) |
|
|
1794 | { |
|
|
1795 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
1796 | |
|
|
1797 | if (handle != anfd->handle) |
|
|
1798 | { |
|
|
1799 | unsigned long arg; |
|
|
1800 | |
|
|
1801 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0)); |
|
|
1802 | |
|
|
1803 | /* handle changed, but fd didn't - we need to do it in two steps */ |
|
|
1804 | backend_modify (EV_A_ fd, anfd->events, 0); |
|
|
1805 | anfd->events = 0; |
|
|
1806 | anfd->handle = handle; |
|
|
1807 | } |
|
|
1808 | } |
|
|
1809 | } |
|
|
1810 | #endif |
579 | |
1811 | |
580 | for (i = 0; i < fdchangecnt; ++i) |
1812 | for (i = 0; i < fdchangecnt; ++i) |
581 | { |
1813 | { |
582 | int fd = fdchanges [i]; |
1814 | int fd = fdchanges [i]; |
583 | ANFD *anfd = anfds + fd; |
1815 | ANFD *anfd = anfds + fd; |
584 | ev_io *w; |
1816 | ev_io *w; |
585 | |
1817 | |
586 | unsigned char events = 0; |
1818 | unsigned char o_events = anfd->events; |
|
|
1819 | unsigned char o_reify = anfd->reify; |
587 | |
1820 | |
588 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1821 | anfd->reify = 0; |
589 | events |= (unsigned char)w->events; |
|
|
590 | |
1822 | |
591 | #if EV_SELECT_IS_WINSOCKET |
1823 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
592 | if (events) |
|
|
593 | { |
1824 | { |
594 | unsigned long argp; |
1825 | anfd->events = 0; |
595 | anfd->handle = _get_osfhandle (fd); |
1826 | |
596 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
1827 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
|
|
1828 | anfd->events |= (unsigned char)w->events; |
|
|
1829 | |
|
|
1830 | if (o_events != anfd->events) |
|
|
1831 | o_reify = EV__IOFDSET; /* actually |= */ |
597 | } |
1832 | } |
598 | #endif |
|
|
599 | |
1833 | |
600 | { |
1834 | if (o_reify & EV__IOFDSET) |
601 | unsigned char o_events = anfd->events; |
|
|
602 | unsigned char o_reify = anfd->reify; |
|
|
603 | |
|
|
604 | anfd->reify = 0; |
|
|
605 | anfd->events = events; |
|
|
606 | |
|
|
607 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
608 | backend_modify (EV_A_ fd, o_events, events); |
1835 | backend_modify (EV_A_ fd, o_events, anfd->events); |
609 | } |
|
|
610 | } |
1836 | } |
611 | |
1837 | |
612 | fdchangecnt = 0; |
1838 | fdchangecnt = 0; |
613 | } |
1839 | } |
614 | |
1840 | |
615 | void inline_size |
1841 | /* something about the given fd changed */ |
|
|
1842 | inline_size void |
616 | fd_change (EV_P_ int fd, int flags) |
1843 | fd_change (EV_P_ int fd, int flags) |
617 | { |
1844 | { |
618 | unsigned char reify = anfds [fd].reify; |
1845 | unsigned char reify = anfds [fd].reify; |
619 | anfds [fd].reify |= flags; |
1846 | anfds [fd].reify |= flags; |
620 | |
1847 | |
… | |
… | |
624 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
1851 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
625 | fdchanges [fdchangecnt - 1] = fd; |
1852 | fdchanges [fdchangecnt - 1] = fd; |
626 | } |
1853 | } |
627 | } |
1854 | } |
628 | |
1855 | |
629 | void inline_speed |
1856 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
1857 | inline_speed void ecb_cold |
630 | fd_kill (EV_P_ int fd) |
1858 | fd_kill (EV_P_ int fd) |
631 | { |
1859 | { |
632 | ev_io *w; |
1860 | ev_io *w; |
633 | |
1861 | |
634 | while ((w = (ev_io *)anfds [fd].head)) |
1862 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
636 | ev_io_stop (EV_A_ w); |
1864 | ev_io_stop (EV_A_ w); |
637 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1865 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
638 | } |
1866 | } |
639 | } |
1867 | } |
640 | |
1868 | |
641 | int inline_size |
1869 | /* check whether the given fd is actually valid, for error recovery */ |
|
|
1870 | inline_size int ecb_cold |
642 | fd_valid (int fd) |
1871 | fd_valid (int fd) |
643 | { |
1872 | { |
644 | #ifdef _WIN32 |
1873 | #ifdef _WIN32 |
645 | return _get_osfhandle (fd) != -1; |
1874 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
646 | #else |
1875 | #else |
647 | return fcntl (fd, F_GETFD) != -1; |
1876 | return fcntl (fd, F_GETFD) != -1; |
648 | #endif |
1877 | #endif |
649 | } |
1878 | } |
650 | |
1879 | |
651 | /* called on EBADF to verify fds */ |
1880 | /* called on EBADF to verify fds */ |
652 | static void noinline |
1881 | static void noinline ecb_cold |
653 | fd_ebadf (EV_P) |
1882 | fd_ebadf (EV_P) |
654 | { |
1883 | { |
655 | int fd; |
1884 | int fd; |
656 | |
1885 | |
657 | for (fd = 0; fd < anfdmax; ++fd) |
1886 | for (fd = 0; fd < anfdmax; ++fd) |
658 | if (anfds [fd].events) |
1887 | if (anfds [fd].events) |
659 | if (!fd_valid (fd) == -1 && errno == EBADF) |
1888 | if (!fd_valid (fd) && errno == EBADF) |
660 | fd_kill (EV_A_ fd); |
1889 | fd_kill (EV_A_ fd); |
661 | } |
1890 | } |
662 | |
1891 | |
663 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1892 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
664 | static void noinline |
1893 | static void noinline ecb_cold |
665 | fd_enomem (EV_P) |
1894 | fd_enomem (EV_P) |
666 | { |
1895 | { |
667 | int fd; |
1896 | int fd; |
668 | |
1897 | |
669 | for (fd = anfdmax; fd--; ) |
1898 | for (fd = anfdmax; fd--; ) |
670 | if (anfds [fd].events) |
1899 | if (anfds [fd].events) |
671 | { |
1900 | { |
672 | fd_kill (EV_A_ fd); |
1901 | fd_kill (EV_A_ fd); |
673 | return; |
1902 | break; |
674 | } |
1903 | } |
675 | } |
1904 | } |
676 | |
1905 | |
677 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1906 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
678 | static void noinline |
1907 | static void noinline |
… | |
… | |
682 | |
1911 | |
683 | for (fd = 0; fd < anfdmax; ++fd) |
1912 | for (fd = 0; fd < anfdmax; ++fd) |
684 | if (anfds [fd].events) |
1913 | if (anfds [fd].events) |
685 | { |
1914 | { |
686 | anfds [fd].events = 0; |
1915 | anfds [fd].events = 0; |
|
|
1916 | anfds [fd].emask = 0; |
687 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
1917 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
688 | } |
1918 | } |
689 | } |
1919 | } |
690 | |
1920 | |
691 | /*****************************************************************************/ |
1921 | /* used to prepare libev internal fd's */ |
692 | |
1922 | /* this is not fork-safe */ |
693 | void inline_speed |
1923 | inline_speed void |
694 | upheap (WT *heap, int k) |
|
|
695 | { |
|
|
696 | WT w = heap [k]; |
|
|
697 | |
|
|
698 | while (k) |
|
|
699 | { |
|
|
700 | int p = (k - 1) >> 1; |
|
|
701 | |
|
|
702 | if (heap [p]->at <= w->at) |
|
|
703 | break; |
|
|
704 | |
|
|
705 | heap [k] = heap [p]; |
|
|
706 | ((W)heap [k])->active = k + 1; |
|
|
707 | k = p; |
|
|
708 | } |
|
|
709 | |
|
|
710 | heap [k] = w; |
|
|
711 | ((W)heap [k])->active = k + 1; |
|
|
712 | } |
|
|
713 | |
|
|
714 | void inline_speed |
|
|
715 | downheap (WT *heap, int N, int k) |
|
|
716 | { |
|
|
717 | WT w = heap [k]; |
|
|
718 | |
|
|
719 | for (;;) |
|
|
720 | { |
|
|
721 | int c = (k << 1) + 1; |
|
|
722 | |
|
|
723 | if (c >= N) |
|
|
724 | break; |
|
|
725 | |
|
|
726 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
727 | ? 1 : 0; |
|
|
728 | |
|
|
729 | if (w->at <= heap [c]->at) |
|
|
730 | break; |
|
|
731 | |
|
|
732 | heap [k] = heap [c]; |
|
|
733 | ((W)heap [k])->active = k + 1; |
|
|
734 | |
|
|
735 | k = c; |
|
|
736 | } |
|
|
737 | |
|
|
738 | heap [k] = w; |
|
|
739 | ((W)heap [k])->active = k + 1; |
|
|
740 | } |
|
|
741 | |
|
|
742 | void inline_size |
|
|
743 | adjustheap (WT *heap, int N, int k) |
|
|
744 | { |
|
|
745 | upheap (heap, k); |
|
|
746 | downheap (heap, N, k); |
|
|
747 | } |
|
|
748 | |
|
|
749 | /*****************************************************************************/ |
|
|
750 | |
|
|
751 | typedef struct |
|
|
752 | { |
|
|
753 | WL head; |
|
|
754 | sig_atomic_t volatile gotsig; |
|
|
755 | } ANSIG; |
|
|
756 | |
|
|
757 | static ANSIG *signals; |
|
|
758 | static int signalmax; |
|
|
759 | |
|
|
760 | static int sigpipe [2]; |
|
|
761 | static sig_atomic_t volatile gotsig; |
|
|
762 | static ev_io sigev; |
|
|
763 | |
|
|
764 | void inline_size |
|
|
765 | signals_init (ANSIG *base, int count) |
|
|
766 | { |
|
|
767 | while (count--) |
|
|
768 | { |
|
|
769 | base->head = 0; |
|
|
770 | base->gotsig = 0; |
|
|
771 | |
|
|
772 | ++base; |
|
|
773 | } |
|
|
774 | } |
|
|
775 | |
|
|
776 | static void |
|
|
777 | sighandler (int signum) |
|
|
778 | { |
|
|
779 | #if _WIN32 |
|
|
780 | signal (signum, sighandler); |
|
|
781 | #endif |
|
|
782 | |
|
|
783 | signals [signum - 1].gotsig = 1; |
|
|
784 | |
|
|
785 | if (!gotsig) |
|
|
786 | { |
|
|
787 | int old_errno = errno; |
|
|
788 | gotsig = 1; |
|
|
789 | write (sigpipe [1], &signum, 1); |
|
|
790 | errno = old_errno; |
|
|
791 | } |
|
|
792 | } |
|
|
793 | |
|
|
794 | void noinline |
|
|
795 | ev_feed_signal_event (EV_P_ int signum) |
|
|
796 | { |
|
|
797 | WL w; |
|
|
798 | |
|
|
799 | #if EV_MULTIPLICITY |
|
|
800 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
801 | #endif |
|
|
802 | |
|
|
803 | --signum; |
|
|
804 | |
|
|
805 | if (signum < 0 || signum >= signalmax) |
|
|
806 | return; |
|
|
807 | |
|
|
808 | signals [signum].gotsig = 0; |
|
|
809 | |
|
|
810 | for (w = signals [signum].head; w; w = w->next) |
|
|
811 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
812 | } |
|
|
813 | |
|
|
814 | static void |
|
|
815 | sigcb (EV_P_ ev_io *iow, int revents) |
|
|
816 | { |
|
|
817 | int signum; |
|
|
818 | |
|
|
819 | read (sigpipe [0], &revents, 1); |
|
|
820 | gotsig = 0; |
|
|
821 | |
|
|
822 | for (signum = signalmax; signum--; ) |
|
|
823 | if (signals [signum].gotsig) |
|
|
824 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
825 | } |
|
|
826 | |
|
|
827 | void inline_speed |
|
|
828 | fd_intern (int fd) |
1924 | fd_intern (int fd) |
829 | { |
1925 | { |
830 | #ifdef _WIN32 |
1926 | #ifdef _WIN32 |
831 | int arg = 1; |
1927 | unsigned long arg = 1; |
832 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1928 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
833 | #else |
1929 | #else |
834 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1930 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
835 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1931 | fcntl (fd, F_SETFL, O_NONBLOCK); |
836 | #endif |
1932 | #endif |
837 | } |
1933 | } |
838 | |
1934 | |
839 | static void noinline |
|
|
840 | siginit (EV_P) |
|
|
841 | { |
|
|
842 | fd_intern (sigpipe [0]); |
|
|
843 | fd_intern (sigpipe [1]); |
|
|
844 | |
|
|
845 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
846 | ev_io_start (EV_A_ &sigev); |
|
|
847 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
|
|
848 | } |
|
|
849 | |
|
|
850 | /*****************************************************************************/ |
1935 | /*****************************************************************************/ |
851 | |
1936 | |
|
|
1937 | /* |
|
|
1938 | * the heap functions want a real array index. array index 0 is guaranteed to not |
|
|
1939 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
|
|
1940 | * the branching factor of the d-tree. |
|
|
1941 | */ |
|
|
1942 | |
|
|
1943 | /* |
|
|
1944 | * at the moment we allow libev the luxury of two heaps, |
|
|
1945 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
1946 | * which is more cache-efficient. |
|
|
1947 | * the difference is about 5% with 50000+ watchers. |
|
|
1948 | */ |
|
|
1949 | #if EV_USE_4HEAP |
|
|
1950 | |
|
|
1951 | #define DHEAP 4 |
|
|
1952 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
1953 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
1954 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
|
|
1955 | |
|
|
1956 | /* away from the root */ |
|
|
1957 | inline_speed void |
|
|
1958 | downheap (ANHE *heap, int N, int k) |
|
|
1959 | { |
|
|
1960 | ANHE he = heap [k]; |
|
|
1961 | ANHE *E = heap + N + HEAP0; |
|
|
1962 | |
|
|
1963 | for (;;) |
|
|
1964 | { |
|
|
1965 | ev_tstamp minat; |
|
|
1966 | ANHE *minpos; |
|
|
1967 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
|
|
1968 | |
|
|
1969 | /* find minimum child */ |
|
|
1970 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
1971 | { |
|
|
1972 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
1973 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
1974 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
1975 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
1976 | } |
|
|
1977 | else if (pos < E) |
|
|
1978 | { |
|
|
1979 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
1980 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
1981 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
1982 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
1983 | } |
|
|
1984 | else |
|
|
1985 | break; |
|
|
1986 | |
|
|
1987 | if (ANHE_at (he) <= minat) |
|
|
1988 | break; |
|
|
1989 | |
|
|
1990 | heap [k] = *minpos; |
|
|
1991 | ev_active (ANHE_w (*minpos)) = k; |
|
|
1992 | |
|
|
1993 | k = minpos - heap; |
|
|
1994 | } |
|
|
1995 | |
|
|
1996 | heap [k] = he; |
|
|
1997 | ev_active (ANHE_w (he)) = k; |
|
|
1998 | } |
|
|
1999 | |
|
|
2000 | #else /* 4HEAP */ |
|
|
2001 | |
|
|
2002 | #define HEAP0 1 |
|
|
2003 | #define HPARENT(k) ((k) >> 1) |
|
|
2004 | #define UPHEAP_DONE(p,k) (!(p)) |
|
|
2005 | |
|
|
2006 | /* away from the root */ |
|
|
2007 | inline_speed void |
|
|
2008 | downheap (ANHE *heap, int N, int k) |
|
|
2009 | { |
|
|
2010 | ANHE he = heap [k]; |
|
|
2011 | |
|
|
2012 | for (;;) |
|
|
2013 | { |
|
|
2014 | int c = k << 1; |
|
|
2015 | |
|
|
2016 | if (c >= N + HEAP0) |
|
|
2017 | break; |
|
|
2018 | |
|
|
2019 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
2020 | ? 1 : 0; |
|
|
2021 | |
|
|
2022 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
2023 | break; |
|
|
2024 | |
|
|
2025 | heap [k] = heap [c]; |
|
|
2026 | ev_active (ANHE_w (heap [k])) = k; |
|
|
2027 | |
|
|
2028 | k = c; |
|
|
2029 | } |
|
|
2030 | |
|
|
2031 | heap [k] = he; |
|
|
2032 | ev_active (ANHE_w (he)) = k; |
|
|
2033 | } |
|
|
2034 | #endif |
|
|
2035 | |
|
|
2036 | /* towards the root */ |
|
|
2037 | inline_speed void |
|
|
2038 | upheap (ANHE *heap, int k) |
|
|
2039 | { |
|
|
2040 | ANHE he = heap [k]; |
|
|
2041 | |
|
|
2042 | for (;;) |
|
|
2043 | { |
|
|
2044 | int p = HPARENT (k); |
|
|
2045 | |
|
|
2046 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
2047 | break; |
|
|
2048 | |
|
|
2049 | heap [k] = heap [p]; |
|
|
2050 | ev_active (ANHE_w (heap [k])) = k; |
|
|
2051 | k = p; |
|
|
2052 | } |
|
|
2053 | |
|
|
2054 | heap [k] = he; |
|
|
2055 | ev_active (ANHE_w (he)) = k; |
|
|
2056 | } |
|
|
2057 | |
|
|
2058 | /* move an element suitably so it is in a correct place */ |
|
|
2059 | inline_size void |
|
|
2060 | adjustheap (ANHE *heap, int N, int k) |
|
|
2061 | { |
|
|
2062 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
|
|
2063 | upheap (heap, k); |
|
|
2064 | else |
|
|
2065 | downheap (heap, N, k); |
|
|
2066 | } |
|
|
2067 | |
|
|
2068 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
2069 | inline_size void |
|
|
2070 | reheap (ANHE *heap, int N) |
|
|
2071 | { |
|
|
2072 | int i; |
|
|
2073 | |
|
|
2074 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
2075 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
2076 | for (i = 0; i < N; ++i) |
|
|
2077 | upheap (heap, i + HEAP0); |
|
|
2078 | } |
|
|
2079 | |
|
|
2080 | /*****************************************************************************/ |
|
|
2081 | |
|
|
2082 | /* associate signal watchers to a signal signal */ |
|
|
2083 | typedef struct |
|
|
2084 | { |
|
|
2085 | EV_ATOMIC_T pending; |
|
|
2086 | #if EV_MULTIPLICITY |
|
|
2087 | EV_P; |
|
|
2088 | #endif |
|
|
2089 | WL head; |
|
|
2090 | } ANSIG; |
|
|
2091 | |
|
|
2092 | static ANSIG signals [EV_NSIG - 1]; |
|
|
2093 | |
|
|
2094 | /*****************************************************************************/ |
|
|
2095 | |
|
|
2096 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
2097 | |
|
|
2098 | static void noinline ecb_cold |
|
|
2099 | evpipe_init (EV_P) |
|
|
2100 | { |
|
|
2101 | if (!ev_is_active (&pipe_w)) |
|
|
2102 | { |
|
|
2103 | int fds [2]; |
|
|
2104 | |
|
|
2105 | # if EV_USE_EVENTFD |
|
|
2106 | fds [0] = -1; |
|
|
2107 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
2108 | if (fds [1] < 0 && errno == EINVAL) |
|
|
2109 | fds [1] = eventfd (0, 0); |
|
|
2110 | |
|
|
2111 | if (fds [1] < 0) |
|
|
2112 | # endif |
|
|
2113 | { |
|
|
2114 | while (pipe (fds)) |
|
|
2115 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
2116 | |
|
|
2117 | fd_intern (fds [0]); |
|
|
2118 | } |
|
|
2119 | |
|
|
2120 | evpipe [0] = fds [0]; |
|
|
2121 | |
|
|
2122 | if (evpipe [1] < 0) |
|
|
2123 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
2124 | else |
|
|
2125 | { |
|
|
2126 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
2127 | /* so that evpipe_write can always rely on its value. */ |
|
|
2128 | /* this branch does not do anything sensible on windows, */ |
|
|
2129 | /* so must not be executed on windows */ |
|
|
2130 | |
|
|
2131 | dup2 (fds [1], evpipe [1]); |
|
|
2132 | close (fds [1]); |
|
|
2133 | } |
|
|
2134 | |
|
|
2135 | fd_intern (evpipe [1]); |
|
|
2136 | |
|
|
2137 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
|
|
2138 | ev_io_start (EV_A_ &pipe_w); |
|
|
2139 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
2140 | } |
|
|
2141 | } |
|
|
2142 | |
|
|
2143 | inline_speed void |
|
|
2144 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
2145 | { |
|
|
2146 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
|
|
2147 | |
|
|
2148 | if (expect_true (*flag)) |
|
|
2149 | return; |
|
|
2150 | |
|
|
2151 | *flag = 1; |
|
|
2152 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
2153 | |
|
|
2154 | pipe_write_skipped = 1; |
|
|
2155 | |
|
|
2156 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
2157 | |
|
|
2158 | if (pipe_write_wanted) |
|
|
2159 | { |
|
|
2160 | int old_errno; |
|
|
2161 | |
|
|
2162 | pipe_write_skipped = 0; |
|
|
2163 | ECB_MEMORY_FENCE_RELEASE; |
|
|
2164 | |
|
|
2165 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
2166 | |
|
|
2167 | #if EV_USE_EVENTFD |
|
|
2168 | if (evpipe [0] < 0) |
|
|
2169 | { |
|
|
2170 | uint64_t counter = 1; |
|
|
2171 | write (evpipe [1], &counter, sizeof (uint64_t)); |
|
|
2172 | } |
|
|
2173 | else |
|
|
2174 | #endif |
|
|
2175 | { |
|
|
2176 | #ifdef _WIN32 |
|
|
2177 | WSABUF buf; |
|
|
2178 | DWORD sent; |
|
|
2179 | buf.buf = &buf; |
|
|
2180 | buf.len = 1; |
|
|
2181 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
|
|
2182 | #else |
|
|
2183 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
2184 | #endif |
|
|
2185 | } |
|
|
2186 | |
|
|
2187 | errno = old_errno; |
|
|
2188 | } |
|
|
2189 | } |
|
|
2190 | |
|
|
2191 | /* called whenever the libev signal pipe */ |
|
|
2192 | /* got some events (signal, async) */ |
|
|
2193 | static void |
|
|
2194 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
2195 | { |
|
|
2196 | int i; |
|
|
2197 | |
|
|
2198 | if (revents & EV_READ) |
|
|
2199 | { |
|
|
2200 | #if EV_USE_EVENTFD |
|
|
2201 | if (evpipe [0] < 0) |
|
|
2202 | { |
|
|
2203 | uint64_t counter; |
|
|
2204 | read (evpipe [1], &counter, sizeof (uint64_t)); |
|
|
2205 | } |
|
|
2206 | else |
|
|
2207 | #endif |
|
|
2208 | { |
|
|
2209 | char dummy[4]; |
|
|
2210 | #ifdef _WIN32 |
|
|
2211 | WSABUF buf; |
|
|
2212 | DWORD recvd; |
|
|
2213 | DWORD flags = 0; |
|
|
2214 | buf.buf = dummy; |
|
|
2215 | buf.len = sizeof (dummy); |
|
|
2216 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
|
|
2217 | #else |
|
|
2218 | read (evpipe [0], &dummy, sizeof (dummy)); |
|
|
2219 | #endif |
|
|
2220 | } |
|
|
2221 | } |
|
|
2222 | |
|
|
2223 | pipe_write_skipped = 0; |
|
|
2224 | |
|
|
2225 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
|
|
2226 | |
|
|
2227 | #if EV_SIGNAL_ENABLE |
|
|
2228 | if (sig_pending) |
|
|
2229 | { |
|
|
2230 | sig_pending = 0; |
|
|
2231 | |
|
|
2232 | ECB_MEMORY_FENCE; |
|
|
2233 | |
|
|
2234 | for (i = EV_NSIG - 1; i--; ) |
|
|
2235 | if (expect_false (signals [i].pending)) |
|
|
2236 | ev_feed_signal_event (EV_A_ i + 1); |
|
|
2237 | } |
|
|
2238 | #endif |
|
|
2239 | |
|
|
2240 | #if EV_ASYNC_ENABLE |
|
|
2241 | if (async_pending) |
|
|
2242 | { |
|
|
2243 | async_pending = 0; |
|
|
2244 | |
|
|
2245 | ECB_MEMORY_FENCE; |
|
|
2246 | |
|
|
2247 | for (i = asynccnt; i--; ) |
|
|
2248 | if (asyncs [i]->sent) |
|
|
2249 | { |
|
|
2250 | asyncs [i]->sent = 0; |
|
|
2251 | ECB_MEMORY_FENCE_RELEASE; |
|
|
2252 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
2253 | } |
|
|
2254 | } |
|
|
2255 | #endif |
|
|
2256 | } |
|
|
2257 | |
|
|
2258 | /*****************************************************************************/ |
|
|
2259 | |
|
|
2260 | void |
|
|
2261 | ev_feed_signal (int signum) EV_THROW |
|
|
2262 | { |
|
|
2263 | #if EV_MULTIPLICITY |
|
|
2264 | EV_P; |
|
|
2265 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
2266 | EV_A = signals [signum - 1].loop; |
|
|
2267 | |
|
|
2268 | if (!EV_A) |
|
|
2269 | return; |
|
|
2270 | #endif |
|
|
2271 | |
|
|
2272 | signals [signum - 1].pending = 1; |
|
|
2273 | evpipe_write (EV_A_ &sig_pending); |
|
|
2274 | } |
|
|
2275 | |
|
|
2276 | static void |
|
|
2277 | ev_sighandler (int signum) |
|
|
2278 | { |
|
|
2279 | #ifdef _WIN32 |
|
|
2280 | signal (signum, ev_sighandler); |
|
|
2281 | #endif |
|
|
2282 | |
|
|
2283 | ev_feed_signal (signum); |
|
|
2284 | } |
|
|
2285 | |
|
|
2286 | void noinline |
|
|
2287 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
|
|
2288 | { |
|
|
2289 | WL w; |
|
|
2290 | |
|
|
2291 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
|
|
2292 | return; |
|
|
2293 | |
|
|
2294 | --signum; |
|
|
2295 | |
|
|
2296 | #if EV_MULTIPLICITY |
|
|
2297 | /* it is permissible to try to feed a signal to the wrong loop */ |
|
|
2298 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
|
|
2299 | |
|
|
2300 | if (expect_false (signals [signum].loop != EV_A)) |
|
|
2301 | return; |
|
|
2302 | #endif |
|
|
2303 | |
|
|
2304 | signals [signum].pending = 0; |
|
|
2305 | ECB_MEMORY_FENCE_RELEASE; |
|
|
2306 | |
|
|
2307 | for (w = signals [signum].head; w; w = w->next) |
|
|
2308 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
2309 | } |
|
|
2310 | |
|
|
2311 | #if EV_USE_SIGNALFD |
|
|
2312 | static void |
|
|
2313 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
2314 | { |
|
|
2315 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
2316 | |
|
|
2317 | for (;;) |
|
|
2318 | { |
|
|
2319 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
2320 | |
|
|
2321 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
2322 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
2323 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
2324 | |
|
|
2325 | if (res < (ssize_t)sizeof (si)) |
|
|
2326 | break; |
|
|
2327 | } |
|
|
2328 | } |
|
|
2329 | #endif |
|
|
2330 | |
|
|
2331 | #endif |
|
|
2332 | |
|
|
2333 | /*****************************************************************************/ |
|
|
2334 | |
|
|
2335 | #if EV_CHILD_ENABLE |
852 | static WL childs [EV_PID_HASHSIZE]; |
2336 | static WL childs [EV_PID_HASHSIZE]; |
853 | |
2337 | |
854 | #ifndef _WIN32 |
|
|
855 | |
|
|
856 | static ev_signal childev; |
2338 | static ev_signal childev; |
857 | |
2339 | |
858 | void inline_speed |
2340 | #ifndef WIFCONTINUED |
|
|
2341 | # define WIFCONTINUED(status) 0 |
|
|
2342 | #endif |
|
|
2343 | |
|
|
2344 | /* handle a single child status event */ |
|
|
2345 | inline_speed void |
859 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
2346 | child_reap (EV_P_ int chain, int pid, int status) |
860 | { |
2347 | { |
861 | ev_child *w; |
2348 | ev_child *w; |
|
|
2349 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
862 | |
2350 | |
863 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
2351 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
2352 | { |
864 | if (w->pid == pid || !w->pid) |
2353 | if ((w->pid == pid || !w->pid) |
|
|
2354 | && (!traced || (w->flags & 1))) |
865 | { |
2355 | { |
866 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
2356 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
867 | w->rpid = pid; |
2357 | w->rpid = pid; |
868 | w->rstatus = status; |
2358 | w->rstatus = status; |
869 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
2359 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
870 | } |
2360 | } |
|
|
2361 | } |
871 | } |
2362 | } |
872 | |
2363 | |
873 | #ifndef WCONTINUED |
2364 | #ifndef WCONTINUED |
874 | # define WCONTINUED 0 |
2365 | # define WCONTINUED 0 |
875 | #endif |
2366 | #endif |
876 | |
2367 | |
|
|
2368 | /* called on sigchld etc., calls waitpid */ |
877 | static void |
2369 | static void |
878 | childcb (EV_P_ ev_signal *sw, int revents) |
2370 | childcb (EV_P_ ev_signal *sw, int revents) |
879 | { |
2371 | { |
880 | int pid, status; |
2372 | int pid, status; |
881 | |
2373 | |
… | |
… | |
884 | if (!WCONTINUED |
2376 | if (!WCONTINUED |
885 | || errno != EINVAL |
2377 | || errno != EINVAL |
886 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
2378 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
887 | return; |
2379 | return; |
888 | |
2380 | |
889 | /* make sure we are called again until all childs have been reaped */ |
2381 | /* make sure we are called again until all children have been reaped */ |
890 | /* we need to do it this way so that the callback gets called before we continue */ |
2382 | /* we need to do it this way so that the callback gets called before we continue */ |
891 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
2383 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
892 | |
2384 | |
893 | child_reap (EV_A_ sw, pid, pid, status); |
2385 | child_reap (EV_A_ pid, pid, status); |
894 | if (EV_PID_HASHSIZE > 1) |
2386 | if ((EV_PID_HASHSIZE) > 1) |
895 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
2387 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
896 | } |
2388 | } |
897 | |
2389 | |
898 | #endif |
2390 | #endif |
899 | |
2391 | |
900 | /*****************************************************************************/ |
2392 | /*****************************************************************************/ |
901 | |
2393 | |
|
|
2394 | #if EV_USE_IOCP |
|
|
2395 | # include "ev_iocp.c" |
|
|
2396 | #endif |
902 | #if EV_USE_PORT |
2397 | #if EV_USE_PORT |
903 | # include "ev_port.c" |
2398 | # include "ev_port.c" |
904 | #endif |
2399 | #endif |
905 | #if EV_USE_KQUEUE |
2400 | #if EV_USE_KQUEUE |
906 | # include "ev_kqueue.c" |
2401 | # include "ev_kqueue.c" |
… | |
… | |
913 | #endif |
2408 | #endif |
914 | #if EV_USE_SELECT |
2409 | #if EV_USE_SELECT |
915 | # include "ev_select.c" |
2410 | # include "ev_select.c" |
916 | #endif |
2411 | #endif |
917 | |
2412 | |
918 | int |
2413 | int ecb_cold |
919 | ev_version_major (void) |
2414 | ev_version_major (void) EV_THROW |
920 | { |
2415 | { |
921 | return EV_VERSION_MAJOR; |
2416 | return EV_VERSION_MAJOR; |
922 | } |
2417 | } |
923 | |
2418 | |
924 | int |
2419 | int ecb_cold |
925 | ev_version_minor (void) |
2420 | ev_version_minor (void) EV_THROW |
926 | { |
2421 | { |
927 | return EV_VERSION_MINOR; |
2422 | return EV_VERSION_MINOR; |
928 | } |
2423 | } |
929 | |
2424 | |
930 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2425 | /* return true if we are running with elevated privileges and should ignore env variables */ |
931 | int inline_size |
2426 | int inline_size ecb_cold |
932 | enable_secure (void) |
2427 | enable_secure (void) |
933 | { |
2428 | { |
934 | #ifdef _WIN32 |
2429 | #ifdef _WIN32 |
935 | return 0; |
2430 | return 0; |
936 | #else |
2431 | #else |
937 | return getuid () != geteuid () |
2432 | return getuid () != geteuid () |
938 | || getgid () != getegid (); |
2433 | || getgid () != getegid (); |
939 | #endif |
2434 | #endif |
940 | } |
2435 | } |
941 | |
2436 | |
942 | unsigned int |
2437 | unsigned int ecb_cold |
943 | ev_supported_backends (void) |
2438 | ev_supported_backends (void) EV_THROW |
944 | { |
2439 | { |
945 | unsigned int flags = 0; |
2440 | unsigned int flags = 0; |
946 | |
2441 | |
947 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2442 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
948 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2443 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
… | |
… | |
951 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2446 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
952 | |
2447 | |
953 | return flags; |
2448 | return flags; |
954 | } |
2449 | } |
955 | |
2450 | |
956 | unsigned int |
2451 | unsigned int ecb_cold |
957 | ev_recommended_backends (void) |
2452 | ev_recommended_backends (void) EV_THROW |
958 | { |
2453 | { |
959 | unsigned int flags = ev_supported_backends (); |
2454 | unsigned int flags = ev_supported_backends (); |
960 | |
2455 | |
961 | #ifndef __NetBSD__ |
2456 | #ifndef __NetBSD__ |
962 | /* kqueue is borked on everything but netbsd apparently */ |
2457 | /* kqueue is borked on everything but netbsd apparently */ |
963 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
2458 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
964 | flags &= ~EVBACKEND_KQUEUE; |
2459 | flags &= ~EVBACKEND_KQUEUE; |
965 | #endif |
2460 | #endif |
966 | #ifdef __APPLE__ |
2461 | #ifdef __APPLE__ |
967 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
2462 | /* only select works correctly on that "unix-certified" platform */ |
968 | flags &= ~EVBACKEND_POLL; |
2463 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
2464 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
|
|
2465 | #endif |
|
|
2466 | #ifdef __FreeBSD__ |
|
|
2467 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
969 | #endif |
2468 | #endif |
970 | |
2469 | |
971 | return flags; |
2470 | return flags; |
972 | } |
2471 | } |
973 | |
2472 | |
|
|
2473 | unsigned int ecb_cold |
|
|
2474 | ev_embeddable_backends (void) EV_THROW |
|
|
2475 | { |
|
|
2476 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
|
|
2477 | |
|
|
2478 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
2479 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
|
|
2480 | flags &= ~EVBACKEND_EPOLL; |
|
|
2481 | |
|
|
2482 | return flags; |
|
|
2483 | } |
|
|
2484 | |
974 | unsigned int |
2485 | unsigned int |
975 | ev_embeddable_backends (void) |
2486 | ev_backend (EV_P) EV_THROW |
976 | { |
2487 | { |
977 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2488 | return backend; |
978 | |
|
|
979 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
980 | /* please fix it and tell me how to detect the fix */ |
|
|
981 | flags &= ~EVBACKEND_EPOLL; |
|
|
982 | |
|
|
983 | #ifdef __APPLE__ |
|
|
984 | /* is there anything thats not broken on darwin? */ |
|
|
985 | flags &= ~EVBACKEND_KQUEUE; |
|
|
986 | #endif |
|
|
987 | |
|
|
988 | return flags; |
|
|
989 | } |
2489 | } |
990 | |
2490 | |
|
|
2491 | #if EV_FEATURE_API |
991 | unsigned int |
2492 | unsigned int |
992 | ev_backend (EV_P) |
2493 | ev_iteration (EV_P) EV_THROW |
993 | { |
2494 | { |
994 | return backend; |
2495 | return loop_count; |
995 | } |
2496 | } |
996 | |
2497 | |
997 | unsigned int |
2498 | unsigned int |
998 | ev_loop_count (EV_P) |
2499 | ev_depth (EV_P) EV_THROW |
999 | { |
2500 | { |
1000 | return loop_count; |
2501 | return loop_depth; |
1001 | } |
2502 | } |
1002 | |
2503 | |
1003 | void |
2504 | void |
1004 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
2505 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1005 | { |
2506 | { |
1006 | io_blocktime = interval; |
2507 | io_blocktime = interval; |
1007 | } |
2508 | } |
1008 | |
2509 | |
1009 | void |
2510 | void |
1010 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
2511 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1011 | { |
2512 | { |
1012 | timeout_blocktime = interval; |
2513 | timeout_blocktime = interval; |
1013 | } |
2514 | } |
1014 | |
2515 | |
|
|
2516 | void |
|
|
2517 | ev_set_userdata (EV_P_ void *data) EV_THROW |
|
|
2518 | { |
|
|
2519 | userdata = data; |
|
|
2520 | } |
|
|
2521 | |
|
|
2522 | void * |
|
|
2523 | ev_userdata (EV_P) EV_THROW |
|
|
2524 | { |
|
|
2525 | return userdata; |
|
|
2526 | } |
|
|
2527 | |
|
|
2528 | void |
|
|
2529 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW |
|
|
2530 | { |
|
|
2531 | invoke_cb = invoke_pending_cb; |
|
|
2532 | } |
|
|
2533 | |
|
|
2534 | void |
|
|
2535 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW |
|
|
2536 | { |
|
|
2537 | release_cb = release; |
|
|
2538 | acquire_cb = acquire; |
|
|
2539 | } |
|
|
2540 | #endif |
|
|
2541 | |
|
|
2542 | /* initialise a loop structure, must be zero-initialised */ |
1015 | static void noinline |
2543 | static void noinline ecb_cold |
1016 | loop_init (EV_P_ unsigned int flags) |
2544 | loop_init (EV_P_ unsigned int flags) EV_THROW |
1017 | { |
2545 | { |
1018 | if (!backend) |
2546 | if (!backend) |
1019 | { |
2547 | { |
|
|
2548 | origflags = flags; |
|
|
2549 | |
|
|
2550 | #if EV_USE_REALTIME |
|
|
2551 | if (!have_realtime) |
|
|
2552 | { |
|
|
2553 | struct timespec ts; |
|
|
2554 | |
|
|
2555 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
2556 | have_realtime = 1; |
|
|
2557 | } |
|
|
2558 | #endif |
|
|
2559 | |
1020 | #if EV_USE_MONOTONIC |
2560 | #if EV_USE_MONOTONIC |
|
|
2561 | if (!have_monotonic) |
1021 | { |
2562 | { |
1022 | struct timespec ts; |
2563 | struct timespec ts; |
|
|
2564 | |
1023 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
2565 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1024 | have_monotonic = 1; |
2566 | have_monotonic = 1; |
1025 | } |
2567 | } |
1026 | #endif |
2568 | #endif |
1027 | |
|
|
1028 | ev_rt_now = ev_time (); |
|
|
1029 | mn_now = get_clock (); |
|
|
1030 | now_floor = mn_now; |
|
|
1031 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1032 | |
|
|
1033 | io_blocktime = 0.; |
|
|
1034 | timeout_blocktime = 0.; |
|
|
1035 | |
2569 | |
1036 | /* pid check not overridable via env */ |
2570 | /* pid check not overridable via env */ |
1037 | #ifndef _WIN32 |
2571 | #ifndef _WIN32 |
1038 | if (flags & EVFLAG_FORKCHECK) |
2572 | if (flags & EVFLAG_FORKCHECK) |
1039 | curpid = getpid (); |
2573 | curpid = getpid (); |
… | |
… | |
1042 | if (!(flags & EVFLAG_NOENV) |
2576 | if (!(flags & EVFLAG_NOENV) |
1043 | && !enable_secure () |
2577 | && !enable_secure () |
1044 | && getenv ("LIBEV_FLAGS")) |
2578 | && getenv ("LIBEV_FLAGS")) |
1045 | flags = atoi (getenv ("LIBEV_FLAGS")); |
2579 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1046 | |
2580 | |
1047 | if (!(flags & 0x0000ffffUL)) |
2581 | ev_rt_now = ev_time (); |
|
|
2582 | mn_now = get_clock (); |
|
|
2583 | now_floor = mn_now; |
|
|
2584 | rtmn_diff = ev_rt_now - mn_now; |
|
|
2585 | #if EV_FEATURE_API |
|
|
2586 | invoke_cb = ev_invoke_pending; |
|
|
2587 | #endif |
|
|
2588 | |
|
|
2589 | io_blocktime = 0.; |
|
|
2590 | timeout_blocktime = 0.; |
|
|
2591 | backend = 0; |
|
|
2592 | backend_fd = -1; |
|
|
2593 | sig_pending = 0; |
|
|
2594 | #if EV_ASYNC_ENABLE |
|
|
2595 | async_pending = 0; |
|
|
2596 | #endif |
|
|
2597 | pipe_write_skipped = 0; |
|
|
2598 | pipe_write_wanted = 0; |
|
|
2599 | evpipe [0] = -1; |
|
|
2600 | evpipe [1] = -1; |
|
|
2601 | #if EV_USE_INOTIFY |
|
|
2602 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
|
|
2603 | #endif |
|
|
2604 | #if EV_USE_SIGNALFD |
|
|
2605 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
|
|
2606 | #endif |
|
|
2607 | |
|
|
2608 | if (!(flags & EVBACKEND_MASK)) |
1048 | flags |= ev_recommended_backends (); |
2609 | flags |= ev_recommended_backends (); |
1049 | |
2610 | |
1050 | backend = 0; |
|
|
1051 | backend_fd = -1; |
|
|
1052 | #if EV_USE_INOTIFY |
2611 | #if EV_USE_IOCP |
1053 | fs_fd = -2; |
2612 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
1054 | #endif |
2613 | #endif |
1055 | |
|
|
1056 | #if EV_USE_PORT |
2614 | #if EV_USE_PORT |
1057 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
2615 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1058 | #endif |
2616 | #endif |
1059 | #if EV_USE_KQUEUE |
2617 | #if EV_USE_KQUEUE |
1060 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
2618 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
1067 | #endif |
2625 | #endif |
1068 | #if EV_USE_SELECT |
2626 | #if EV_USE_SELECT |
1069 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
2627 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1070 | #endif |
2628 | #endif |
1071 | |
2629 | |
|
|
2630 | ev_prepare_init (&pending_w, pendingcb); |
|
|
2631 | |
|
|
2632 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1072 | ev_init (&sigev, sigcb); |
2633 | ev_init (&pipe_w, pipecb); |
1073 | ev_set_priority (&sigev, EV_MAXPRI); |
2634 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
2635 | #endif |
1074 | } |
2636 | } |
1075 | } |
2637 | } |
1076 | |
2638 | |
1077 | static void noinline |
2639 | /* free up a loop structure */ |
|
|
2640 | void ecb_cold |
1078 | loop_destroy (EV_P) |
2641 | ev_loop_destroy (EV_P) |
1079 | { |
2642 | { |
1080 | int i; |
2643 | int i; |
|
|
2644 | |
|
|
2645 | #if EV_MULTIPLICITY |
|
|
2646 | /* mimic free (0) */ |
|
|
2647 | if (!EV_A) |
|
|
2648 | return; |
|
|
2649 | #endif |
|
|
2650 | |
|
|
2651 | #if EV_CLEANUP_ENABLE |
|
|
2652 | /* queue cleanup watchers (and execute them) */ |
|
|
2653 | if (expect_false (cleanupcnt)) |
|
|
2654 | { |
|
|
2655 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
2656 | EV_INVOKE_PENDING; |
|
|
2657 | } |
|
|
2658 | #endif |
|
|
2659 | |
|
|
2660 | #if EV_CHILD_ENABLE |
|
|
2661 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
|
|
2662 | { |
|
|
2663 | ev_ref (EV_A); /* child watcher */ |
|
|
2664 | ev_signal_stop (EV_A_ &childev); |
|
|
2665 | } |
|
|
2666 | #endif |
|
|
2667 | |
|
|
2668 | if (ev_is_active (&pipe_w)) |
|
|
2669 | { |
|
|
2670 | /*ev_ref (EV_A);*/ |
|
|
2671 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
|
|
2672 | |
|
|
2673 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
|
|
2674 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
2675 | } |
|
|
2676 | |
|
|
2677 | #if EV_USE_SIGNALFD |
|
|
2678 | if (ev_is_active (&sigfd_w)) |
|
|
2679 | close (sigfd); |
|
|
2680 | #endif |
1081 | |
2681 | |
1082 | #if EV_USE_INOTIFY |
2682 | #if EV_USE_INOTIFY |
1083 | if (fs_fd >= 0) |
2683 | if (fs_fd >= 0) |
1084 | close (fs_fd); |
2684 | close (fs_fd); |
1085 | #endif |
2685 | #endif |
1086 | |
2686 | |
1087 | if (backend_fd >= 0) |
2687 | if (backend_fd >= 0) |
1088 | close (backend_fd); |
2688 | close (backend_fd); |
1089 | |
2689 | |
|
|
2690 | #if EV_USE_IOCP |
|
|
2691 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
2692 | #endif |
1090 | #if EV_USE_PORT |
2693 | #if EV_USE_PORT |
1091 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
2694 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1092 | #endif |
2695 | #endif |
1093 | #if EV_USE_KQUEUE |
2696 | #if EV_USE_KQUEUE |
1094 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
2697 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
… | |
… | |
1109 | #if EV_IDLE_ENABLE |
2712 | #if EV_IDLE_ENABLE |
1110 | array_free (idle, [i]); |
2713 | array_free (idle, [i]); |
1111 | #endif |
2714 | #endif |
1112 | } |
2715 | } |
1113 | |
2716 | |
1114 | ev_free (anfds); anfdmax = 0; |
2717 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1115 | |
2718 | |
1116 | /* have to use the microsoft-never-gets-it-right macro */ |
2719 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
2720 | array_free (rfeed, EMPTY); |
1117 | array_free (fdchange, EMPTY); |
2721 | array_free (fdchange, EMPTY); |
1118 | array_free (timer, EMPTY); |
2722 | array_free (timer, EMPTY); |
1119 | #if EV_PERIODIC_ENABLE |
2723 | #if EV_PERIODIC_ENABLE |
1120 | array_free (periodic, EMPTY); |
2724 | array_free (periodic, EMPTY); |
1121 | #endif |
2725 | #endif |
1122 | #if EV_FORK_ENABLE |
2726 | #if EV_FORK_ENABLE |
1123 | array_free (fork, EMPTY); |
2727 | array_free (fork, EMPTY); |
1124 | #endif |
2728 | #endif |
|
|
2729 | #if EV_CLEANUP_ENABLE |
|
|
2730 | array_free (cleanup, EMPTY); |
|
|
2731 | #endif |
1125 | array_free (prepare, EMPTY); |
2732 | array_free (prepare, EMPTY); |
1126 | array_free (check, EMPTY); |
2733 | array_free (check, EMPTY); |
|
|
2734 | #if EV_ASYNC_ENABLE |
|
|
2735 | array_free (async, EMPTY); |
|
|
2736 | #endif |
1127 | |
2737 | |
1128 | backend = 0; |
2738 | backend = 0; |
1129 | } |
|
|
1130 | |
2739 | |
|
|
2740 | #if EV_MULTIPLICITY |
|
|
2741 | if (ev_is_default_loop (EV_A)) |
|
|
2742 | #endif |
|
|
2743 | ev_default_loop_ptr = 0; |
|
|
2744 | #if EV_MULTIPLICITY |
|
|
2745 | else |
|
|
2746 | ev_free (EV_A); |
|
|
2747 | #endif |
|
|
2748 | } |
|
|
2749 | |
|
|
2750 | #if EV_USE_INOTIFY |
1131 | void inline_size infy_fork (EV_P); |
2751 | inline_size void infy_fork (EV_P); |
|
|
2752 | #endif |
1132 | |
2753 | |
1133 | void inline_size |
2754 | inline_size void |
1134 | loop_fork (EV_P) |
2755 | loop_fork (EV_P) |
1135 | { |
2756 | { |
1136 | #if EV_USE_PORT |
2757 | #if EV_USE_PORT |
1137 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
2758 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1138 | #endif |
2759 | #endif |
… | |
… | |
1144 | #endif |
2765 | #endif |
1145 | #if EV_USE_INOTIFY |
2766 | #if EV_USE_INOTIFY |
1146 | infy_fork (EV_A); |
2767 | infy_fork (EV_A); |
1147 | #endif |
2768 | #endif |
1148 | |
2769 | |
|
|
2770 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1149 | if (ev_is_active (&sigev)) |
2771 | if (ev_is_active (&pipe_w)) |
1150 | { |
2772 | { |
1151 | /* default loop */ |
2773 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
1152 | |
2774 | |
1153 | ev_ref (EV_A); |
2775 | ev_ref (EV_A); |
1154 | ev_io_stop (EV_A_ &sigev); |
2776 | ev_io_stop (EV_A_ &pipe_w); |
1155 | close (sigpipe [0]); |
|
|
1156 | close (sigpipe [1]); |
|
|
1157 | |
2777 | |
1158 | while (pipe (sigpipe)) |
2778 | if (evpipe [0] >= 0) |
1159 | syserr ("(libev) error creating pipe"); |
2779 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1160 | |
2780 | |
1161 | siginit (EV_A); |
2781 | evpipe_init (EV_A); |
|
|
2782 | /* iterate over everything, in case we missed something before */ |
|
|
2783 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
1162 | } |
2784 | } |
|
|
2785 | #endif |
1163 | |
2786 | |
1164 | postfork = 0; |
2787 | postfork = 0; |
1165 | } |
2788 | } |
1166 | |
2789 | |
1167 | #if EV_MULTIPLICITY |
2790 | #if EV_MULTIPLICITY |
|
|
2791 | |
1168 | struct ev_loop * |
2792 | struct ev_loop * ecb_cold |
1169 | ev_loop_new (unsigned int flags) |
2793 | ev_loop_new (unsigned int flags) EV_THROW |
1170 | { |
2794 | { |
1171 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2795 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1172 | |
2796 | |
1173 | memset (loop, 0, sizeof (struct ev_loop)); |
2797 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1174 | |
|
|
1175 | loop_init (EV_A_ flags); |
2798 | loop_init (EV_A_ flags); |
1176 | |
2799 | |
1177 | if (ev_backend (EV_A)) |
2800 | if (ev_backend (EV_A)) |
1178 | return loop; |
2801 | return EV_A; |
1179 | |
2802 | |
|
|
2803 | ev_free (EV_A); |
1180 | return 0; |
2804 | return 0; |
1181 | } |
2805 | } |
1182 | |
2806 | |
1183 | void |
2807 | #endif /* multiplicity */ |
1184 | ev_loop_destroy (EV_P) |
|
|
1185 | { |
|
|
1186 | loop_destroy (EV_A); |
|
|
1187 | ev_free (loop); |
|
|
1188 | } |
|
|
1189 | |
2808 | |
1190 | void |
2809 | #if EV_VERIFY |
1191 | ev_loop_fork (EV_P) |
2810 | static void noinline ecb_cold |
|
|
2811 | verify_watcher (EV_P_ W w) |
1192 | { |
2812 | { |
1193 | postfork = 1; |
2813 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1194 | } |
|
|
1195 | |
2814 | |
|
|
2815 | if (w->pending) |
|
|
2816 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
2817 | } |
|
|
2818 | |
|
|
2819 | static void noinline ecb_cold |
|
|
2820 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
2821 | { |
|
|
2822 | int i; |
|
|
2823 | |
|
|
2824 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
2825 | { |
|
|
2826 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
2827 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
2828 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
2829 | |
|
|
2830 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
2831 | } |
|
|
2832 | } |
|
|
2833 | |
|
|
2834 | static void noinline ecb_cold |
|
|
2835 | array_verify (EV_P_ W *ws, int cnt) |
|
|
2836 | { |
|
|
2837 | while (cnt--) |
|
|
2838 | { |
|
|
2839 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
2840 | verify_watcher (EV_A_ ws [cnt]); |
|
|
2841 | } |
|
|
2842 | } |
|
|
2843 | #endif |
|
|
2844 | |
|
|
2845 | #if EV_FEATURE_API |
|
|
2846 | void ecb_cold |
|
|
2847 | ev_verify (EV_P) EV_THROW |
|
|
2848 | { |
|
|
2849 | #if EV_VERIFY |
|
|
2850 | int i; |
|
|
2851 | WL w, w2; |
|
|
2852 | |
|
|
2853 | assert (activecnt >= -1); |
|
|
2854 | |
|
|
2855 | assert (fdchangemax >= fdchangecnt); |
|
|
2856 | for (i = 0; i < fdchangecnt; ++i) |
|
|
2857 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
2858 | |
|
|
2859 | assert (anfdmax >= 0); |
|
|
2860 | for (i = 0; i < anfdmax; ++i) |
|
|
2861 | { |
|
|
2862 | int j = 0; |
|
|
2863 | |
|
|
2864 | for (w = w2 = anfds [i].head; w; w = w->next) |
|
|
2865 | { |
|
|
2866 | verify_watcher (EV_A_ (W)w); |
|
|
2867 | |
|
|
2868 | if (j++ & 1) |
|
|
2869 | { |
|
|
2870 | assert (("libev: io watcher list contains a loop", w != w2)); |
|
|
2871 | w2 = w2->next; |
|
|
2872 | } |
|
|
2873 | |
|
|
2874 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
2875 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
2876 | } |
|
|
2877 | } |
|
|
2878 | |
|
|
2879 | assert (timermax >= timercnt); |
|
|
2880 | verify_heap (EV_A_ timers, timercnt); |
|
|
2881 | |
|
|
2882 | #if EV_PERIODIC_ENABLE |
|
|
2883 | assert (periodicmax >= periodiccnt); |
|
|
2884 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
2885 | #endif |
|
|
2886 | |
|
|
2887 | for (i = NUMPRI; i--; ) |
|
|
2888 | { |
|
|
2889 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
2890 | #if EV_IDLE_ENABLE |
|
|
2891 | assert (idleall >= 0); |
|
|
2892 | assert (idlemax [i] >= idlecnt [i]); |
|
|
2893 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
2894 | #endif |
|
|
2895 | } |
|
|
2896 | |
|
|
2897 | #if EV_FORK_ENABLE |
|
|
2898 | assert (forkmax >= forkcnt); |
|
|
2899 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
2900 | #endif |
|
|
2901 | |
|
|
2902 | #if EV_CLEANUP_ENABLE |
|
|
2903 | assert (cleanupmax >= cleanupcnt); |
|
|
2904 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
2905 | #endif |
|
|
2906 | |
|
|
2907 | #if EV_ASYNC_ENABLE |
|
|
2908 | assert (asyncmax >= asynccnt); |
|
|
2909 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
2910 | #endif |
|
|
2911 | |
|
|
2912 | #if EV_PREPARE_ENABLE |
|
|
2913 | assert (preparemax >= preparecnt); |
|
|
2914 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
2915 | #endif |
|
|
2916 | |
|
|
2917 | #if EV_CHECK_ENABLE |
|
|
2918 | assert (checkmax >= checkcnt); |
|
|
2919 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
2920 | #endif |
|
|
2921 | |
|
|
2922 | # if 0 |
|
|
2923 | #if EV_CHILD_ENABLE |
|
|
2924 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
2925 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
2926 | #endif |
|
|
2927 | # endif |
|
|
2928 | #endif |
|
|
2929 | } |
1196 | #endif |
2930 | #endif |
1197 | |
2931 | |
1198 | #if EV_MULTIPLICITY |
2932 | #if EV_MULTIPLICITY |
1199 | struct ev_loop * |
2933 | struct ev_loop * ecb_cold |
1200 | ev_default_loop_init (unsigned int flags) |
|
|
1201 | #else |
2934 | #else |
1202 | int |
2935 | int |
|
|
2936 | #endif |
1203 | ev_default_loop (unsigned int flags) |
2937 | ev_default_loop (unsigned int flags) EV_THROW |
1204 | #endif |
|
|
1205 | { |
2938 | { |
1206 | if (sigpipe [0] == sigpipe [1]) |
|
|
1207 | if (pipe (sigpipe)) |
|
|
1208 | return 0; |
|
|
1209 | |
|
|
1210 | if (!ev_default_loop_ptr) |
2939 | if (!ev_default_loop_ptr) |
1211 | { |
2940 | { |
1212 | #if EV_MULTIPLICITY |
2941 | #if EV_MULTIPLICITY |
1213 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
2942 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1214 | #else |
2943 | #else |
1215 | ev_default_loop_ptr = 1; |
2944 | ev_default_loop_ptr = 1; |
1216 | #endif |
2945 | #endif |
1217 | |
2946 | |
1218 | loop_init (EV_A_ flags); |
2947 | loop_init (EV_A_ flags); |
1219 | |
2948 | |
1220 | if (ev_backend (EV_A)) |
2949 | if (ev_backend (EV_A)) |
1221 | { |
2950 | { |
1222 | siginit (EV_A); |
2951 | #if EV_CHILD_ENABLE |
1223 | |
|
|
1224 | #ifndef _WIN32 |
|
|
1225 | ev_signal_init (&childev, childcb, SIGCHLD); |
2952 | ev_signal_init (&childev, childcb, SIGCHLD); |
1226 | ev_set_priority (&childev, EV_MAXPRI); |
2953 | ev_set_priority (&childev, EV_MAXPRI); |
1227 | ev_signal_start (EV_A_ &childev); |
2954 | ev_signal_start (EV_A_ &childev); |
1228 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
2955 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1229 | #endif |
2956 | #endif |
… | |
… | |
1234 | |
2961 | |
1235 | return ev_default_loop_ptr; |
2962 | return ev_default_loop_ptr; |
1236 | } |
2963 | } |
1237 | |
2964 | |
1238 | void |
2965 | void |
1239 | ev_default_destroy (void) |
2966 | ev_loop_fork (EV_P) EV_THROW |
1240 | { |
2967 | { |
1241 | #if EV_MULTIPLICITY |
|
|
1242 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1243 | #endif |
|
|
1244 | |
|
|
1245 | #ifndef _WIN32 |
|
|
1246 | ev_ref (EV_A); /* child watcher */ |
|
|
1247 | ev_signal_stop (EV_A_ &childev); |
|
|
1248 | #endif |
|
|
1249 | |
|
|
1250 | ev_ref (EV_A); /* signal watcher */ |
|
|
1251 | ev_io_stop (EV_A_ &sigev); |
|
|
1252 | |
|
|
1253 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1254 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1255 | |
|
|
1256 | loop_destroy (EV_A); |
|
|
1257 | } |
|
|
1258 | |
|
|
1259 | void |
|
|
1260 | ev_default_fork (void) |
|
|
1261 | { |
|
|
1262 | #if EV_MULTIPLICITY |
|
|
1263 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1264 | #endif |
|
|
1265 | |
|
|
1266 | if (backend) |
|
|
1267 | postfork = 1; |
2968 | postfork = 1; |
1268 | } |
2969 | } |
1269 | |
2970 | |
1270 | /*****************************************************************************/ |
2971 | /*****************************************************************************/ |
1271 | |
2972 | |
1272 | void |
2973 | void |
1273 | ev_invoke (EV_P_ void *w, int revents) |
2974 | ev_invoke (EV_P_ void *w, int revents) |
1274 | { |
2975 | { |
1275 | EV_CB_INVOKE ((W)w, revents); |
2976 | EV_CB_INVOKE ((W)w, revents); |
1276 | } |
2977 | } |
1277 | |
2978 | |
1278 | void inline_speed |
2979 | unsigned int |
1279 | call_pending (EV_P) |
2980 | ev_pending_count (EV_P) EV_THROW |
1280 | { |
2981 | { |
1281 | int pri; |
2982 | int pri; |
|
|
2983 | unsigned int count = 0; |
1282 | |
2984 | |
1283 | for (pri = NUMPRI; pri--; ) |
2985 | for (pri = NUMPRI; pri--; ) |
|
|
2986 | count += pendingcnt [pri]; |
|
|
2987 | |
|
|
2988 | return count; |
|
|
2989 | } |
|
|
2990 | |
|
|
2991 | void noinline |
|
|
2992 | ev_invoke_pending (EV_P) |
|
|
2993 | { |
|
|
2994 | pendingpri = NUMPRI; |
|
|
2995 | |
|
|
2996 | while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ |
|
|
2997 | { |
|
|
2998 | --pendingpri; |
|
|
2999 | |
1284 | while (pendingcnt [pri]) |
3000 | while (pendingcnt [pendingpri]) |
1285 | { |
|
|
1286 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
|
|
1287 | |
|
|
1288 | if (expect_true (p->w)) |
|
|
1289 | { |
|
|
1290 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1291 | |
|
|
1292 | p->w->pending = 0; |
|
|
1293 | EV_CB_INVOKE (p->w, p->events); |
|
|
1294 | } |
|
|
1295 | } |
|
|
1296 | } |
|
|
1297 | |
|
|
1298 | void inline_size |
|
|
1299 | timers_reify (EV_P) |
|
|
1300 | { |
|
|
1301 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
|
|
1302 | { |
|
|
1303 | ev_timer *w = (ev_timer *)timers [0]; |
|
|
1304 | |
|
|
1305 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1306 | |
|
|
1307 | /* first reschedule or stop timer */ |
|
|
1308 | if (w->repeat) |
|
|
1309 | { |
3001 | { |
1310 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
3002 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
1311 | |
3003 | |
1312 | ((WT)w)->at += w->repeat; |
3004 | p->w->pending = 0; |
1313 | if (((WT)w)->at < mn_now) |
3005 | EV_CB_INVOKE (p->w, p->events); |
1314 | ((WT)w)->at = mn_now; |
3006 | EV_FREQUENT_CHECK; |
1315 | |
|
|
1316 | downheap (timers, timercnt, 0); |
|
|
1317 | } |
3007 | } |
1318 | else |
|
|
1319 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1320 | |
|
|
1321 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1322 | } |
|
|
1323 | } |
|
|
1324 | |
|
|
1325 | #if EV_PERIODIC_ENABLE |
|
|
1326 | void inline_size |
|
|
1327 | periodics_reify (EV_P) |
|
|
1328 | { |
|
|
1329 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
|
|
1330 | { |
3008 | } |
1331 | ev_periodic *w = (ev_periodic *)periodics [0]; |
|
|
1332 | |
|
|
1333 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1334 | |
|
|
1335 | /* first reschedule or stop timer */ |
|
|
1336 | if (w->reschedule_cb) |
|
|
1337 | { |
|
|
1338 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
|
|
1339 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1340 | downheap (periodics, periodiccnt, 0); |
|
|
1341 | } |
|
|
1342 | else if (w->interval) |
|
|
1343 | { |
|
|
1344 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1345 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
|
|
1346 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
|
|
1347 | downheap (periodics, periodiccnt, 0); |
|
|
1348 | } |
|
|
1349 | else |
|
|
1350 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1351 | |
|
|
1352 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1353 | } |
|
|
1354 | } |
3009 | } |
1355 | |
|
|
1356 | static void noinline |
|
|
1357 | periodics_reschedule (EV_P) |
|
|
1358 | { |
|
|
1359 | int i; |
|
|
1360 | |
|
|
1361 | /* adjust periodics after time jump */ |
|
|
1362 | for (i = 0; i < periodiccnt; ++i) |
|
|
1363 | { |
|
|
1364 | ev_periodic *w = (ev_periodic *)periodics [i]; |
|
|
1365 | |
|
|
1366 | if (w->reschedule_cb) |
|
|
1367 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1368 | else if (w->interval) |
|
|
1369 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1370 | } |
|
|
1371 | |
|
|
1372 | /* now rebuild the heap */ |
|
|
1373 | for (i = periodiccnt >> 1; i--; ) |
|
|
1374 | downheap (periodics, periodiccnt, i); |
|
|
1375 | } |
|
|
1376 | #endif |
|
|
1377 | |
3010 | |
1378 | #if EV_IDLE_ENABLE |
3011 | #if EV_IDLE_ENABLE |
1379 | void inline_size |
3012 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
3013 | /* only when higher priorities are idle" logic */ |
|
|
3014 | inline_size void |
1380 | idle_reify (EV_P) |
3015 | idle_reify (EV_P) |
1381 | { |
3016 | { |
1382 | if (expect_false (idleall)) |
3017 | if (expect_false (idleall)) |
1383 | { |
3018 | { |
1384 | int pri; |
3019 | int pri; |
… | |
… | |
1396 | } |
3031 | } |
1397 | } |
3032 | } |
1398 | } |
3033 | } |
1399 | #endif |
3034 | #endif |
1400 | |
3035 | |
1401 | void inline_speed |
3036 | /* make timers pending */ |
|
|
3037 | inline_size void |
|
|
3038 | timers_reify (EV_P) |
|
|
3039 | { |
|
|
3040 | EV_FREQUENT_CHECK; |
|
|
3041 | |
|
|
3042 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
|
|
3043 | { |
|
|
3044 | do |
|
|
3045 | { |
|
|
3046 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
3047 | |
|
|
3048 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
3049 | |
|
|
3050 | /* first reschedule or stop timer */ |
|
|
3051 | if (w->repeat) |
|
|
3052 | { |
|
|
3053 | ev_at (w) += w->repeat; |
|
|
3054 | if (ev_at (w) < mn_now) |
|
|
3055 | ev_at (w) = mn_now; |
|
|
3056 | |
|
|
3057 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
3058 | |
|
|
3059 | ANHE_at_cache (timers [HEAP0]); |
|
|
3060 | downheap (timers, timercnt, HEAP0); |
|
|
3061 | } |
|
|
3062 | else |
|
|
3063 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
3064 | |
|
|
3065 | EV_FREQUENT_CHECK; |
|
|
3066 | feed_reverse (EV_A_ (W)w); |
|
|
3067 | } |
|
|
3068 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
|
|
3069 | |
|
|
3070 | feed_reverse_done (EV_A_ EV_TIMER); |
|
|
3071 | } |
|
|
3072 | } |
|
|
3073 | |
|
|
3074 | #if EV_PERIODIC_ENABLE |
|
|
3075 | |
|
|
3076 | static void noinline |
|
|
3077 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
3078 | { |
|
|
3079 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
|
|
3080 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
|
|
3081 | |
|
|
3082 | /* the above almost always errs on the low side */ |
|
|
3083 | while (at <= ev_rt_now) |
|
|
3084 | { |
|
|
3085 | ev_tstamp nat = at + w->interval; |
|
|
3086 | |
|
|
3087 | /* when resolution fails us, we use ev_rt_now */ |
|
|
3088 | if (expect_false (nat == at)) |
|
|
3089 | { |
|
|
3090 | at = ev_rt_now; |
|
|
3091 | break; |
|
|
3092 | } |
|
|
3093 | |
|
|
3094 | at = nat; |
|
|
3095 | } |
|
|
3096 | |
|
|
3097 | ev_at (w) = at; |
|
|
3098 | } |
|
|
3099 | |
|
|
3100 | /* make periodics pending */ |
|
|
3101 | inline_size void |
|
|
3102 | periodics_reify (EV_P) |
|
|
3103 | { |
|
|
3104 | EV_FREQUENT_CHECK; |
|
|
3105 | |
|
|
3106 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
|
|
3107 | { |
|
|
3108 | do |
|
|
3109 | { |
|
|
3110 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
3111 | |
|
|
3112 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
3113 | |
|
|
3114 | /* first reschedule or stop timer */ |
|
|
3115 | if (w->reschedule_cb) |
|
|
3116 | { |
|
|
3117 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
3118 | |
|
|
3119 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
3120 | |
|
|
3121 | ANHE_at_cache (periodics [HEAP0]); |
|
|
3122 | downheap (periodics, periodiccnt, HEAP0); |
|
|
3123 | } |
|
|
3124 | else if (w->interval) |
|
|
3125 | { |
|
|
3126 | periodic_recalc (EV_A_ w); |
|
|
3127 | ANHE_at_cache (periodics [HEAP0]); |
|
|
3128 | downheap (periodics, periodiccnt, HEAP0); |
|
|
3129 | } |
|
|
3130 | else |
|
|
3131 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
3132 | |
|
|
3133 | EV_FREQUENT_CHECK; |
|
|
3134 | feed_reverse (EV_A_ (W)w); |
|
|
3135 | } |
|
|
3136 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
|
|
3137 | |
|
|
3138 | feed_reverse_done (EV_A_ EV_PERIODIC); |
|
|
3139 | } |
|
|
3140 | } |
|
|
3141 | |
|
|
3142 | /* simply recalculate all periodics */ |
|
|
3143 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
|
|
3144 | static void noinline ecb_cold |
|
|
3145 | periodics_reschedule (EV_P) |
|
|
3146 | { |
|
|
3147 | int i; |
|
|
3148 | |
|
|
3149 | /* adjust periodics after time jump */ |
|
|
3150 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
|
|
3151 | { |
|
|
3152 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
|
|
3153 | |
|
|
3154 | if (w->reschedule_cb) |
|
|
3155 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
3156 | else if (w->interval) |
|
|
3157 | periodic_recalc (EV_A_ w); |
|
|
3158 | |
|
|
3159 | ANHE_at_cache (periodics [i]); |
|
|
3160 | } |
|
|
3161 | |
|
|
3162 | reheap (periodics, periodiccnt); |
|
|
3163 | } |
|
|
3164 | #endif |
|
|
3165 | |
|
|
3166 | /* adjust all timers by a given offset */ |
|
|
3167 | static void noinline ecb_cold |
|
|
3168 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
3169 | { |
|
|
3170 | int i; |
|
|
3171 | |
|
|
3172 | for (i = 0; i < timercnt; ++i) |
|
|
3173 | { |
|
|
3174 | ANHE *he = timers + i + HEAP0; |
|
|
3175 | ANHE_w (*he)->at += adjust; |
|
|
3176 | ANHE_at_cache (*he); |
|
|
3177 | } |
|
|
3178 | } |
|
|
3179 | |
|
|
3180 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
3181 | /* also detect if there was a timejump, and act accordingly */ |
|
|
3182 | inline_speed void |
1402 | time_update (EV_P_ ev_tstamp max_block) |
3183 | time_update (EV_P_ ev_tstamp max_block) |
1403 | { |
3184 | { |
1404 | int i; |
|
|
1405 | |
|
|
1406 | #if EV_USE_MONOTONIC |
3185 | #if EV_USE_MONOTONIC |
1407 | if (expect_true (have_monotonic)) |
3186 | if (expect_true (have_monotonic)) |
1408 | { |
3187 | { |
|
|
3188 | int i; |
1409 | ev_tstamp odiff = rtmn_diff; |
3189 | ev_tstamp odiff = rtmn_diff; |
1410 | |
3190 | |
1411 | mn_now = get_clock (); |
3191 | mn_now = get_clock (); |
1412 | |
3192 | |
1413 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
3193 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1429 | * doesn't hurt either as we only do this on time-jumps or |
3209 | * doesn't hurt either as we only do this on time-jumps or |
1430 | * in the unlikely event of having been preempted here. |
3210 | * in the unlikely event of having been preempted here. |
1431 | */ |
3211 | */ |
1432 | for (i = 4; --i; ) |
3212 | for (i = 4; --i; ) |
1433 | { |
3213 | { |
|
|
3214 | ev_tstamp diff; |
1434 | rtmn_diff = ev_rt_now - mn_now; |
3215 | rtmn_diff = ev_rt_now - mn_now; |
1435 | |
3216 | |
1436 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
3217 | diff = odiff - rtmn_diff; |
|
|
3218 | |
|
|
3219 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
1437 | return; /* all is well */ |
3220 | return; /* all is well */ |
1438 | |
3221 | |
1439 | ev_rt_now = ev_time (); |
3222 | ev_rt_now = ev_time (); |
1440 | mn_now = get_clock (); |
3223 | mn_now = get_clock (); |
1441 | now_floor = mn_now; |
3224 | now_floor = mn_now; |
1442 | } |
3225 | } |
1443 | |
3226 | |
|
|
3227 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
3228 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1444 | # if EV_PERIODIC_ENABLE |
3229 | # if EV_PERIODIC_ENABLE |
1445 | periodics_reschedule (EV_A); |
3230 | periodics_reschedule (EV_A); |
1446 | # endif |
3231 | # endif |
1447 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1448 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1449 | } |
3232 | } |
1450 | else |
3233 | else |
1451 | #endif |
3234 | #endif |
1452 | { |
3235 | { |
1453 | ev_rt_now = ev_time (); |
3236 | ev_rt_now = ev_time (); |
1454 | |
3237 | |
1455 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
3238 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1456 | { |
3239 | { |
|
|
3240 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
3241 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1457 | #if EV_PERIODIC_ENABLE |
3242 | #if EV_PERIODIC_ENABLE |
1458 | periodics_reschedule (EV_A); |
3243 | periodics_reschedule (EV_A); |
1459 | #endif |
3244 | #endif |
1460 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1461 | for (i = 0; i < timercnt; ++i) |
|
|
1462 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
|
|
1463 | } |
3245 | } |
1464 | |
3246 | |
1465 | mn_now = ev_rt_now; |
3247 | mn_now = ev_rt_now; |
1466 | } |
3248 | } |
1467 | } |
3249 | } |
1468 | |
3250 | |
1469 | void |
3251 | int |
1470 | ev_ref (EV_P) |
|
|
1471 | { |
|
|
1472 | ++activecnt; |
|
|
1473 | } |
|
|
1474 | |
|
|
1475 | void |
|
|
1476 | ev_unref (EV_P) |
|
|
1477 | { |
|
|
1478 | --activecnt; |
|
|
1479 | } |
|
|
1480 | |
|
|
1481 | static int loop_done; |
|
|
1482 | |
|
|
1483 | void |
|
|
1484 | ev_loop (EV_P_ int flags) |
3252 | ev_run (EV_P_ int flags) |
1485 | { |
3253 | { |
1486 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
3254 | #if EV_FEATURE_API |
1487 | ? EVUNLOOP_ONE |
3255 | ++loop_depth; |
1488 | : EVUNLOOP_CANCEL; |
3256 | #endif |
1489 | |
3257 | |
|
|
3258 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
|
|
3259 | |
|
|
3260 | loop_done = EVBREAK_CANCEL; |
|
|
3261 | |
1490 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
3262 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1491 | |
3263 | |
1492 | do |
3264 | do |
1493 | { |
3265 | { |
|
|
3266 | #if EV_VERIFY >= 2 |
|
|
3267 | ev_verify (EV_A); |
|
|
3268 | #endif |
|
|
3269 | |
1494 | #ifndef _WIN32 |
3270 | #ifndef _WIN32 |
1495 | if (expect_false (curpid)) /* penalise the forking check even more */ |
3271 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1496 | if (expect_false (getpid () != curpid)) |
3272 | if (expect_false (getpid () != curpid)) |
1497 | { |
3273 | { |
1498 | curpid = getpid (); |
3274 | curpid = getpid (); |
… | |
… | |
1504 | /* we might have forked, so queue fork handlers */ |
3280 | /* we might have forked, so queue fork handlers */ |
1505 | if (expect_false (postfork)) |
3281 | if (expect_false (postfork)) |
1506 | if (forkcnt) |
3282 | if (forkcnt) |
1507 | { |
3283 | { |
1508 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
3284 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1509 | call_pending (EV_A); |
3285 | EV_INVOKE_PENDING; |
1510 | } |
3286 | } |
1511 | #endif |
3287 | #endif |
1512 | |
3288 | |
|
|
3289 | #if EV_PREPARE_ENABLE |
1513 | /* queue prepare watchers (and execute them) */ |
3290 | /* queue prepare watchers (and execute them) */ |
1514 | if (expect_false (preparecnt)) |
3291 | if (expect_false (preparecnt)) |
1515 | { |
3292 | { |
1516 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
3293 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1517 | call_pending (EV_A); |
3294 | EV_INVOKE_PENDING; |
1518 | } |
3295 | } |
|
|
3296 | #endif |
1519 | |
3297 | |
1520 | if (expect_false (!activecnt)) |
3298 | if (expect_false (loop_done)) |
1521 | break; |
3299 | break; |
1522 | |
3300 | |
1523 | /* we might have forked, so reify kernel state if necessary */ |
3301 | /* we might have forked, so reify kernel state if necessary */ |
1524 | if (expect_false (postfork)) |
3302 | if (expect_false (postfork)) |
1525 | loop_fork (EV_A); |
3303 | loop_fork (EV_A); |
… | |
… | |
1530 | /* calculate blocking time */ |
3308 | /* calculate blocking time */ |
1531 | { |
3309 | { |
1532 | ev_tstamp waittime = 0.; |
3310 | ev_tstamp waittime = 0.; |
1533 | ev_tstamp sleeptime = 0.; |
3311 | ev_tstamp sleeptime = 0.; |
1534 | |
3312 | |
|
|
3313 | /* remember old timestamp for io_blocktime calculation */ |
|
|
3314 | ev_tstamp prev_mn_now = mn_now; |
|
|
3315 | |
|
|
3316 | /* update time to cancel out callback processing overhead */ |
|
|
3317 | time_update (EV_A_ 1e100); |
|
|
3318 | |
|
|
3319 | /* from now on, we want a pipe-wake-up */ |
|
|
3320 | pipe_write_wanted = 1; |
|
|
3321 | |
|
|
3322 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
3323 | |
1535 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
3324 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
1536 | { |
3325 | { |
1537 | /* update time to cancel out callback processing overhead */ |
|
|
1538 | time_update (EV_A_ 1e100); |
|
|
1539 | |
|
|
1540 | waittime = MAX_BLOCKTIME; |
3326 | waittime = MAX_BLOCKTIME; |
1541 | |
3327 | |
1542 | if (timercnt) |
3328 | if (timercnt) |
1543 | { |
3329 | { |
1544 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
3330 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
1545 | if (waittime > to) waittime = to; |
3331 | if (waittime > to) waittime = to; |
1546 | } |
3332 | } |
1547 | |
3333 | |
1548 | #if EV_PERIODIC_ENABLE |
3334 | #if EV_PERIODIC_ENABLE |
1549 | if (periodiccnt) |
3335 | if (periodiccnt) |
1550 | { |
3336 | { |
1551 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
3337 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now; |
1552 | if (waittime > to) waittime = to; |
3338 | if (waittime > to) waittime = to; |
1553 | } |
3339 | } |
1554 | #endif |
3340 | #endif |
1555 | |
3341 | |
|
|
3342 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
1556 | if (expect_false (waittime < timeout_blocktime)) |
3343 | if (expect_false (waittime < timeout_blocktime)) |
1557 | waittime = timeout_blocktime; |
3344 | waittime = timeout_blocktime; |
1558 | |
3345 | |
1559 | sleeptime = waittime - backend_fudge; |
3346 | /* at this point, we NEED to wait, so we have to ensure */ |
|
|
3347 | /* to pass a minimum nonzero value to the backend */ |
|
|
3348 | if (expect_false (waittime < backend_mintime)) |
|
|
3349 | waittime = backend_mintime; |
1560 | |
3350 | |
|
|
3351 | /* extra check because io_blocktime is commonly 0 */ |
1561 | if (expect_true (sleeptime > io_blocktime)) |
3352 | if (expect_false (io_blocktime)) |
1562 | sleeptime = io_blocktime; |
|
|
1563 | |
|
|
1564 | if (sleeptime) |
|
|
1565 | { |
3353 | { |
|
|
3354 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
3355 | |
|
|
3356 | if (sleeptime > waittime - backend_mintime) |
|
|
3357 | sleeptime = waittime - backend_mintime; |
|
|
3358 | |
|
|
3359 | if (expect_true (sleeptime > 0.)) |
|
|
3360 | { |
1566 | ev_sleep (sleeptime); |
3361 | ev_sleep (sleeptime); |
1567 | waittime -= sleeptime; |
3362 | waittime -= sleeptime; |
|
|
3363 | } |
1568 | } |
3364 | } |
1569 | } |
3365 | } |
1570 | |
3366 | |
|
|
3367 | #if EV_FEATURE_API |
1571 | ++loop_count; |
3368 | ++loop_count; |
|
|
3369 | #endif |
|
|
3370 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
1572 | backend_poll (EV_A_ waittime); |
3371 | backend_poll (EV_A_ waittime); |
|
|
3372 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
|
|
3373 | |
|
|
3374 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
|
|
3375 | |
|
|
3376 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
3377 | if (pipe_write_skipped) |
|
|
3378 | { |
|
|
3379 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
3380 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
3381 | } |
|
|
3382 | |
1573 | |
3383 | |
1574 | /* update ev_rt_now, do magic */ |
3384 | /* update ev_rt_now, do magic */ |
1575 | time_update (EV_A_ waittime + sleeptime); |
3385 | time_update (EV_A_ waittime + sleeptime); |
1576 | } |
3386 | } |
1577 | |
3387 | |
… | |
… | |
1584 | #if EV_IDLE_ENABLE |
3394 | #if EV_IDLE_ENABLE |
1585 | /* queue idle watchers unless other events are pending */ |
3395 | /* queue idle watchers unless other events are pending */ |
1586 | idle_reify (EV_A); |
3396 | idle_reify (EV_A); |
1587 | #endif |
3397 | #endif |
1588 | |
3398 | |
|
|
3399 | #if EV_CHECK_ENABLE |
1589 | /* queue check watchers, to be executed first */ |
3400 | /* queue check watchers, to be executed first */ |
1590 | if (expect_false (checkcnt)) |
3401 | if (expect_false (checkcnt)) |
1591 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
3402 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
3403 | #endif |
1592 | |
3404 | |
1593 | call_pending (EV_A); |
3405 | EV_INVOKE_PENDING; |
1594 | |
|
|
1595 | } |
3406 | } |
1596 | while (expect_true (activecnt && !loop_done)); |
3407 | while (expect_true ( |
|
|
3408 | activecnt |
|
|
3409 | && !loop_done |
|
|
3410 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
|
|
3411 | )); |
1597 | |
3412 | |
1598 | if (loop_done == EVUNLOOP_ONE) |
3413 | if (loop_done == EVBREAK_ONE) |
1599 | loop_done = EVUNLOOP_CANCEL; |
3414 | loop_done = EVBREAK_CANCEL; |
|
|
3415 | |
|
|
3416 | #if EV_FEATURE_API |
|
|
3417 | --loop_depth; |
|
|
3418 | #endif |
|
|
3419 | |
|
|
3420 | return activecnt; |
1600 | } |
3421 | } |
1601 | |
3422 | |
1602 | void |
3423 | void |
1603 | ev_unloop (EV_P_ int how) |
3424 | ev_break (EV_P_ int how) EV_THROW |
1604 | { |
3425 | { |
1605 | loop_done = how; |
3426 | loop_done = how; |
1606 | } |
3427 | } |
1607 | |
3428 | |
|
|
3429 | void |
|
|
3430 | ev_ref (EV_P) EV_THROW |
|
|
3431 | { |
|
|
3432 | ++activecnt; |
|
|
3433 | } |
|
|
3434 | |
|
|
3435 | void |
|
|
3436 | ev_unref (EV_P) EV_THROW |
|
|
3437 | { |
|
|
3438 | --activecnt; |
|
|
3439 | } |
|
|
3440 | |
|
|
3441 | void |
|
|
3442 | ev_now_update (EV_P) EV_THROW |
|
|
3443 | { |
|
|
3444 | time_update (EV_A_ 1e100); |
|
|
3445 | } |
|
|
3446 | |
|
|
3447 | void |
|
|
3448 | ev_suspend (EV_P) EV_THROW |
|
|
3449 | { |
|
|
3450 | ev_now_update (EV_A); |
|
|
3451 | } |
|
|
3452 | |
|
|
3453 | void |
|
|
3454 | ev_resume (EV_P) EV_THROW |
|
|
3455 | { |
|
|
3456 | ev_tstamp mn_prev = mn_now; |
|
|
3457 | |
|
|
3458 | ev_now_update (EV_A); |
|
|
3459 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
3460 | #if EV_PERIODIC_ENABLE |
|
|
3461 | /* TODO: really do this? */ |
|
|
3462 | periodics_reschedule (EV_A); |
|
|
3463 | #endif |
|
|
3464 | } |
|
|
3465 | |
1608 | /*****************************************************************************/ |
3466 | /*****************************************************************************/ |
|
|
3467 | /* singly-linked list management, used when the expected list length is short */ |
1609 | |
3468 | |
1610 | void inline_size |
3469 | inline_size void |
1611 | wlist_add (WL *head, WL elem) |
3470 | wlist_add (WL *head, WL elem) |
1612 | { |
3471 | { |
1613 | elem->next = *head; |
3472 | elem->next = *head; |
1614 | *head = elem; |
3473 | *head = elem; |
1615 | } |
3474 | } |
1616 | |
3475 | |
1617 | void inline_size |
3476 | inline_size void |
1618 | wlist_del (WL *head, WL elem) |
3477 | wlist_del (WL *head, WL elem) |
1619 | { |
3478 | { |
1620 | while (*head) |
3479 | while (*head) |
1621 | { |
3480 | { |
1622 | if (*head == elem) |
3481 | if (expect_true (*head == elem)) |
1623 | { |
3482 | { |
1624 | *head = elem->next; |
3483 | *head = elem->next; |
1625 | return; |
3484 | break; |
1626 | } |
3485 | } |
1627 | |
3486 | |
1628 | head = &(*head)->next; |
3487 | head = &(*head)->next; |
1629 | } |
3488 | } |
1630 | } |
3489 | } |
1631 | |
3490 | |
1632 | void inline_speed |
3491 | /* internal, faster, version of ev_clear_pending */ |
|
|
3492 | inline_speed void |
1633 | clear_pending (EV_P_ W w) |
3493 | clear_pending (EV_P_ W w) |
1634 | { |
3494 | { |
1635 | if (w->pending) |
3495 | if (w->pending) |
1636 | { |
3496 | { |
1637 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
3497 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
1638 | w->pending = 0; |
3498 | w->pending = 0; |
1639 | } |
3499 | } |
1640 | } |
3500 | } |
1641 | |
3501 | |
1642 | int |
3502 | int |
1643 | ev_clear_pending (EV_P_ void *w) |
3503 | ev_clear_pending (EV_P_ void *w) EV_THROW |
1644 | { |
3504 | { |
1645 | W w_ = (W)w; |
3505 | W w_ = (W)w; |
1646 | int pending = w_->pending; |
3506 | int pending = w_->pending; |
1647 | |
3507 | |
1648 | if (expect_true (pending)) |
3508 | if (expect_true (pending)) |
1649 | { |
3509 | { |
1650 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
3510 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
3511 | p->w = (W)&pending_w; |
1651 | w_->pending = 0; |
3512 | w_->pending = 0; |
1652 | p->w = 0; |
|
|
1653 | return p->events; |
3513 | return p->events; |
1654 | } |
3514 | } |
1655 | else |
3515 | else |
1656 | return 0; |
3516 | return 0; |
1657 | } |
3517 | } |
1658 | |
3518 | |
1659 | void inline_size |
3519 | inline_size void |
1660 | pri_adjust (EV_P_ W w) |
3520 | pri_adjust (EV_P_ W w) |
1661 | { |
3521 | { |
1662 | int pri = w->priority; |
3522 | int pri = ev_priority (w); |
1663 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
3523 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
1664 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
3524 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
1665 | w->priority = pri; |
3525 | ev_set_priority (w, pri); |
1666 | } |
3526 | } |
1667 | |
3527 | |
1668 | void inline_speed |
3528 | inline_speed void |
1669 | ev_start (EV_P_ W w, int active) |
3529 | ev_start (EV_P_ W w, int active) |
1670 | { |
3530 | { |
1671 | pri_adjust (EV_A_ w); |
3531 | pri_adjust (EV_A_ w); |
1672 | w->active = active; |
3532 | w->active = active; |
1673 | ev_ref (EV_A); |
3533 | ev_ref (EV_A); |
1674 | } |
3534 | } |
1675 | |
3535 | |
1676 | void inline_size |
3536 | inline_size void |
1677 | ev_stop (EV_P_ W w) |
3537 | ev_stop (EV_P_ W w) |
1678 | { |
3538 | { |
1679 | ev_unref (EV_A); |
3539 | ev_unref (EV_A); |
1680 | w->active = 0; |
3540 | w->active = 0; |
1681 | } |
3541 | } |
1682 | |
3542 | |
1683 | /*****************************************************************************/ |
3543 | /*****************************************************************************/ |
1684 | |
3544 | |
1685 | void noinline |
3545 | void noinline |
1686 | ev_io_start (EV_P_ ev_io *w) |
3546 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
1687 | { |
3547 | { |
1688 | int fd = w->fd; |
3548 | int fd = w->fd; |
1689 | |
3549 | |
1690 | if (expect_false (ev_is_active (w))) |
3550 | if (expect_false (ev_is_active (w))) |
1691 | return; |
3551 | return; |
1692 | |
3552 | |
1693 | assert (("ev_io_start called with negative fd", fd >= 0)); |
3553 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
3554 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
|
|
3555 | |
|
|
3556 | EV_FREQUENT_CHECK; |
1694 | |
3557 | |
1695 | ev_start (EV_A_ (W)w, 1); |
3558 | ev_start (EV_A_ (W)w, 1); |
1696 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
3559 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
1697 | wlist_add (&anfds[fd].head, (WL)w); |
3560 | wlist_add (&anfds[fd].head, (WL)w); |
1698 | |
3561 | |
|
|
3562 | /* common bug, apparently */ |
|
|
3563 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
|
|
3564 | |
1699 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
3565 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
1700 | w->events &= ~EV_IOFDSET; |
3566 | w->events &= ~EV__IOFDSET; |
|
|
3567 | |
|
|
3568 | EV_FREQUENT_CHECK; |
1701 | } |
3569 | } |
1702 | |
3570 | |
1703 | void noinline |
3571 | void noinline |
1704 | ev_io_stop (EV_P_ ev_io *w) |
3572 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
1705 | { |
3573 | { |
1706 | clear_pending (EV_A_ (W)w); |
3574 | clear_pending (EV_A_ (W)w); |
1707 | if (expect_false (!ev_is_active (w))) |
3575 | if (expect_false (!ev_is_active (w))) |
1708 | return; |
3576 | return; |
1709 | |
3577 | |
1710 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
3578 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
3579 | |
|
|
3580 | EV_FREQUENT_CHECK; |
1711 | |
3581 | |
1712 | wlist_del (&anfds[w->fd].head, (WL)w); |
3582 | wlist_del (&anfds[w->fd].head, (WL)w); |
1713 | ev_stop (EV_A_ (W)w); |
3583 | ev_stop (EV_A_ (W)w); |
1714 | |
3584 | |
1715 | fd_change (EV_A_ w->fd, 1); |
3585 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
|
|
3586 | |
|
|
3587 | EV_FREQUENT_CHECK; |
1716 | } |
3588 | } |
1717 | |
3589 | |
1718 | void noinline |
3590 | void noinline |
1719 | ev_timer_start (EV_P_ ev_timer *w) |
3591 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
1720 | { |
3592 | { |
1721 | if (expect_false (ev_is_active (w))) |
3593 | if (expect_false (ev_is_active (w))) |
1722 | return; |
3594 | return; |
1723 | |
3595 | |
1724 | ((WT)w)->at += mn_now; |
3596 | ev_at (w) += mn_now; |
1725 | |
3597 | |
1726 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
3598 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1727 | |
3599 | |
|
|
3600 | EV_FREQUENT_CHECK; |
|
|
3601 | |
|
|
3602 | ++timercnt; |
1728 | ev_start (EV_A_ (W)w, ++timercnt); |
3603 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1729 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
3604 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1730 | timers [timercnt - 1] = (WT)w; |
3605 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1731 | upheap (timers, timercnt - 1); |
3606 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
3607 | upheap (timers, ev_active (w)); |
1732 | |
3608 | |
|
|
3609 | EV_FREQUENT_CHECK; |
|
|
3610 | |
1733 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
3611 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1734 | } |
3612 | } |
1735 | |
3613 | |
1736 | void noinline |
3614 | void noinline |
1737 | ev_timer_stop (EV_P_ ev_timer *w) |
3615 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
1738 | { |
3616 | { |
1739 | clear_pending (EV_A_ (W)w); |
3617 | clear_pending (EV_A_ (W)w); |
1740 | if (expect_false (!ev_is_active (w))) |
3618 | if (expect_false (!ev_is_active (w))) |
1741 | return; |
3619 | return; |
1742 | |
3620 | |
1743 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
3621 | EV_FREQUENT_CHECK; |
1744 | |
3622 | |
1745 | { |
3623 | { |
1746 | int active = ((W)w)->active; |
3624 | int active = ev_active (w); |
1747 | |
3625 | |
|
|
3626 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
3627 | |
|
|
3628 | --timercnt; |
|
|
3629 | |
1748 | if (expect_true (--active < --timercnt)) |
3630 | if (expect_true (active < timercnt + HEAP0)) |
1749 | { |
3631 | { |
1750 | timers [active] = timers [timercnt]; |
3632 | timers [active] = timers [timercnt + HEAP0]; |
1751 | adjustheap (timers, timercnt, active); |
3633 | adjustheap (timers, timercnt, active); |
1752 | } |
3634 | } |
1753 | } |
3635 | } |
1754 | |
3636 | |
1755 | ((WT)w)->at -= mn_now; |
3637 | ev_at (w) -= mn_now; |
1756 | |
3638 | |
1757 | ev_stop (EV_A_ (W)w); |
3639 | ev_stop (EV_A_ (W)w); |
|
|
3640 | |
|
|
3641 | EV_FREQUENT_CHECK; |
1758 | } |
3642 | } |
1759 | |
3643 | |
1760 | void noinline |
3644 | void noinline |
1761 | ev_timer_again (EV_P_ ev_timer *w) |
3645 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
1762 | { |
3646 | { |
|
|
3647 | EV_FREQUENT_CHECK; |
|
|
3648 | |
|
|
3649 | clear_pending (EV_A_ (W)w); |
|
|
3650 | |
1763 | if (ev_is_active (w)) |
3651 | if (ev_is_active (w)) |
1764 | { |
3652 | { |
1765 | if (w->repeat) |
3653 | if (w->repeat) |
1766 | { |
3654 | { |
1767 | ((WT)w)->at = mn_now + w->repeat; |
3655 | ev_at (w) = mn_now + w->repeat; |
|
|
3656 | ANHE_at_cache (timers [ev_active (w)]); |
1768 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
3657 | adjustheap (timers, timercnt, ev_active (w)); |
1769 | } |
3658 | } |
1770 | else |
3659 | else |
1771 | ev_timer_stop (EV_A_ w); |
3660 | ev_timer_stop (EV_A_ w); |
1772 | } |
3661 | } |
1773 | else if (w->repeat) |
3662 | else if (w->repeat) |
1774 | { |
3663 | { |
1775 | w->at = w->repeat; |
3664 | ev_at (w) = w->repeat; |
1776 | ev_timer_start (EV_A_ w); |
3665 | ev_timer_start (EV_A_ w); |
1777 | } |
3666 | } |
|
|
3667 | |
|
|
3668 | EV_FREQUENT_CHECK; |
|
|
3669 | } |
|
|
3670 | |
|
|
3671 | ev_tstamp |
|
|
3672 | ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW |
|
|
3673 | { |
|
|
3674 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
1778 | } |
3675 | } |
1779 | |
3676 | |
1780 | #if EV_PERIODIC_ENABLE |
3677 | #if EV_PERIODIC_ENABLE |
1781 | void noinline |
3678 | void noinline |
1782 | ev_periodic_start (EV_P_ ev_periodic *w) |
3679 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
1783 | { |
3680 | { |
1784 | if (expect_false (ev_is_active (w))) |
3681 | if (expect_false (ev_is_active (w))) |
1785 | return; |
3682 | return; |
1786 | |
3683 | |
1787 | if (w->reschedule_cb) |
3684 | if (w->reschedule_cb) |
1788 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
3685 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1789 | else if (w->interval) |
3686 | else if (w->interval) |
1790 | { |
3687 | { |
1791 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
3688 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1792 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
3689 | periodic_recalc (EV_A_ w); |
1793 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1794 | } |
3690 | } |
1795 | else |
3691 | else |
1796 | ((WT)w)->at = w->offset; |
3692 | ev_at (w) = w->offset; |
1797 | |
3693 | |
|
|
3694 | EV_FREQUENT_CHECK; |
|
|
3695 | |
|
|
3696 | ++periodiccnt; |
1798 | ev_start (EV_A_ (W)w, ++periodiccnt); |
3697 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
1799 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
3698 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1800 | periodics [periodiccnt - 1] = (WT)w; |
3699 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1801 | upheap (periodics, periodiccnt - 1); |
3700 | ANHE_at_cache (periodics [ev_active (w)]); |
|
|
3701 | upheap (periodics, ev_active (w)); |
1802 | |
3702 | |
|
|
3703 | EV_FREQUENT_CHECK; |
|
|
3704 | |
1803 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
3705 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1804 | } |
3706 | } |
1805 | |
3707 | |
1806 | void noinline |
3708 | void noinline |
1807 | ev_periodic_stop (EV_P_ ev_periodic *w) |
3709 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
1808 | { |
3710 | { |
1809 | clear_pending (EV_A_ (W)w); |
3711 | clear_pending (EV_A_ (W)w); |
1810 | if (expect_false (!ev_is_active (w))) |
3712 | if (expect_false (!ev_is_active (w))) |
1811 | return; |
3713 | return; |
1812 | |
3714 | |
1813 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
3715 | EV_FREQUENT_CHECK; |
1814 | |
3716 | |
1815 | { |
3717 | { |
1816 | int active = ((W)w)->active; |
3718 | int active = ev_active (w); |
1817 | |
3719 | |
|
|
3720 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
|
|
3721 | |
|
|
3722 | --periodiccnt; |
|
|
3723 | |
1818 | if (expect_true (--active < --periodiccnt)) |
3724 | if (expect_true (active < periodiccnt + HEAP0)) |
1819 | { |
3725 | { |
1820 | periodics [active] = periodics [periodiccnt]; |
3726 | periodics [active] = periodics [periodiccnt + HEAP0]; |
1821 | adjustheap (periodics, periodiccnt, active); |
3727 | adjustheap (periodics, periodiccnt, active); |
1822 | } |
3728 | } |
1823 | } |
3729 | } |
1824 | |
3730 | |
1825 | ev_stop (EV_A_ (W)w); |
3731 | ev_stop (EV_A_ (W)w); |
|
|
3732 | |
|
|
3733 | EV_FREQUENT_CHECK; |
1826 | } |
3734 | } |
1827 | |
3735 | |
1828 | void noinline |
3736 | void noinline |
1829 | ev_periodic_again (EV_P_ ev_periodic *w) |
3737 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
1830 | { |
3738 | { |
1831 | /* TODO: use adjustheap and recalculation */ |
3739 | /* TODO: use adjustheap and recalculation */ |
1832 | ev_periodic_stop (EV_A_ w); |
3740 | ev_periodic_stop (EV_A_ w); |
1833 | ev_periodic_start (EV_A_ w); |
3741 | ev_periodic_start (EV_A_ w); |
1834 | } |
3742 | } |
… | |
… | |
1836 | |
3744 | |
1837 | #ifndef SA_RESTART |
3745 | #ifndef SA_RESTART |
1838 | # define SA_RESTART 0 |
3746 | # define SA_RESTART 0 |
1839 | #endif |
3747 | #endif |
1840 | |
3748 | |
|
|
3749 | #if EV_SIGNAL_ENABLE |
|
|
3750 | |
1841 | void noinline |
3751 | void noinline |
1842 | ev_signal_start (EV_P_ ev_signal *w) |
3752 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
1843 | { |
3753 | { |
1844 | #if EV_MULTIPLICITY |
|
|
1845 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1846 | #endif |
|
|
1847 | if (expect_false (ev_is_active (w))) |
3754 | if (expect_false (ev_is_active (w))) |
1848 | return; |
3755 | return; |
1849 | |
3756 | |
1850 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
3757 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
1851 | |
3758 | |
|
|
3759 | #if EV_MULTIPLICITY |
|
|
3760 | assert (("libev: a signal must not be attached to two different loops", |
|
|
3761 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
|
|
3762 | |
|
|
3763 | signals [w->signum - 1].loop = EV_A; |
|
|
3764 | ECB_MEMORY_FENCE_RELEASE; |
|
|
3765 | #endif |
|
|
3766 | |
|
|
3767 | EV_FREQUENT_CHECK; |
|
|
3768 | |
|
|
3769 | #if EV_USE_SIGNALFD |
|
|
3770 | if (sigfd == -2) |
1852 | { |
3771 | { |
1853 | #ifndef _WIN32 |
3772 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
1854 | sigset_t full, prev; |
3773 | if (sigfd < 0 && errno == EINVAL) |
1855 | sigfillset (&full); |
3774 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
1856 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
1857 | #endif |
|
|
1858 | |
3775 | |
1859 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
3776 | if (sigfd >= 0) |
|
|
3777 | { |
|
|
3778 | fd_intern (sigfd); /* doing it twice will not hurt */ |
1860 | |
3779 | |
1861 | #ifndef _WIN32 |
3780 | sigemptyset (&sigfd_set); |
1862 | sigprocmask (SIG_SETMASK, &prev, 0); |
3781 | |
1863 | #endif |
3782 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
3783 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
3784 | ev_io_start (EV_A_ &sigfd_w); |
|
|
3785 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
3786 | } |
1864 | } |
3787 | } |
|
|
3788 | |
|
|
3789 | if (sigfd >= 0) |
|
|
3790 | { |
|
|
3791 | /* TODO: check .head */ |
|
|
3792 | sigaddset (&sigfd_set, w->signum); |
|
|
3793 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
3794 | |
|
|
3795 | signalfd (sigfd, &sigfd_set, 0); |
|
|
3796 | } |
|
|
3797 | #endif |
1865 | |
3798 | |
1866 | ev_start (EV_A_ (W)w, 1); |
3799 | ev_start (EV_A_ (W)w, 1); |
1867 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
3800 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1868 | |
3801 | |
1869 | if (!((WL)w)->next) |
3802 | if (!((WL)w)->next) |
|
|
3803 | # if EV_USE_SIGNALFD |
|
|
3804 | if (sigfd < 0) /*TODO*/ |
|
|
3805 | # endif |
1870 | { |
3806 | { |
1871 | #if _WIN32 |
3807 | # ifdef _WIN32 |
|
|
3808 | evpipe_init (EV_A); |
|
|
3809 | |
1872 | signal (w->signum, sighandler); |
3810 | signal (w->signum, ev_sighandler); |
1873 | #else |
3811 | # else |
1874 | struct sigaction sa; |
3812 | struct sigaction sa; |
|
|
3813 | |
|
|
3814 | evpipe_init (EV_A); |
|
|
3815 | |
1875 | sa.sa_handler = sighandler; |
3816 | sa.sa_handler = ev_sighandler; |
1876 | sigfillset (&sa.sa_mask); |
3817 | sigfillset (&sa.sa_mask); |
1877 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
3818 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1878 | sigaction (w->signum, &sa, 0); |
3819 | sigaction (w->signum, &sa, 0); |
|
|
3820 | |
|
|
3821 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
3822 | { |
|
|
3823 | sigemptyset (&sa.sa_mask); |
|
|
3824 | sigaddset (&sa.sa_mask, w->signum); |
|
|
3825 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
3826 | } |
1879 | #endif |
3827 | #endif |
1880 | } |
3828 | } |
|
|
3829 | |
|
|
3830 | EV_FREQUENT_CHECK; |
1881 | } |
3831 | } |
1882 | |
3832 | |
1883 | void noinline |
3833 | void noinline |
1884 | ev_signal_stop (EV_P_ ev_signal *w) |
3834 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
1885 | { |
3835 | { |
1886 | clear_pending (EV_A_ (W)w); |
3836 | clear_pending (EV_A_ (W)w); |
1887 | if (expect_false (!ev_is_active (w))) |
3837 | if (expect_false (!ev_is_active (w))) |
1888 | return; |
3838 | return; |
1889 | |
3839 | |
|
|
3840 | EV_FREQUENT_CHECK; |
|
|
3841 | |
1890 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
3842 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1891 | ev_stop (EV_A_ (W)w); |
3843 | ev_stop (EV_A_ (W)w); |
1892 | |
3844 | |
1893 | if (!signals [w->signum - 1].head) |
3845 | if (!signals [w->signum - 1].head) |
|
|
3846 | { |
|
|
3847 | #if EV_MULTIPLICITY |
|
|
3848 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
3849 | #endif |
|
|
3850 | #if EV_USE_SIGNALFD |
|
|
3851 | if (sigfd >= 0) |
|
|
3852 | { |
|
|
3853 | sigset_t ss; |
|
|
3854 | |
|
|
3855 | sigemptyset (&ss); |
|
|
3856 | sigaddset (&ss, w->signum); |
|
|
3857 | sigdelset (&sigfd_set, w->signum); |
|
|
3858 | |
|
|
3859 | signalfd (sigfd, &sigfd_set, 0); |
|
|
3860 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
3861 | } |
|
|
3862 | else |
|
|
3863 | #endif |
1894 | signal (w->signum, SIG_DFL); |
3864 | signal (w->signum, SIG_DFL); |
|
|
3865 | } |
|
|
3866 | |
|
|
3867 | EV_FREQUENT_CHECK; |
1895 | } |
3868 | } |
|
|
3869 | |
|
|
3870 | #endif |
|
|
3871 | |
|
|
3872 | #if EV_CHILD_ENABLE |
1896 | |
3873 | |
1897 | void |
3874 | void |
1898 | ev_child_start (EV_P_ ev_child *w) |
3875 | ev_child_start (EV_P_ ev_child *w) EV_THROW |
1899 | { |
3876 | { |
1900 | #if EV_MULTIPLICITY |
3877 | #if EV_MULTIPLICITY |
1901 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3878 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1902 | #endif |
3879 | #endif |
1903 | if (expect_false (ev_is_active (w))) |
3880 | if (expect_false (ev_is_active (w))) |
1904 | return; |
3881 | return; |
1905 | |
3882 | |
|
|
3883 | EV_FREQUENT_CHECK; |
|
|
3884 | |
1906 | ev_start (EV_A_ (W)w, 1); |
3885 | ev_start (EV_A_ (W)w, 1); |
1907 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
3886 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
|
|
3887 | |
|
|
3888 | EV_FREQUENT_CHECK; |
1908 | } |
3889 | } |
1909 | |
3890 | |
1910 | void |
3891 | void |
1911 | ev_child_stop (EV_P_ ev_child *w) |
3892 | ev_child_stop (EV_P_ ev_child *w) EV_THROW |
1912 | { |
3893 | { |
1913 | clear_pending (EV_A_ (W)w); |
3894 | clear_pending (EV_A_ (W)w); |
1914 | if (expect_false (!ev_is_active (w))) |
3895 | if (expect_false (!ev_is_active (w))) |
1915 | return; |
3896 | return; |
1916 | |
3897 | |
|
|
3898 | EV_FREQUENT_CHECK; |
|
|
3899 | |
1917 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
3900 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
1918 | ev_stop (EV_A_ (W)w); |
3901 | ev_stop (EV_A_ (W)w); |
|
|
3902 | |
|
|
3903 | EV_FREQUENT_CHECK; |
1919 | } |
3904 | } |
|
|
3905 | |
|
|
3906 | #endif |
1920 | |
3907 | |
1921 | #if EV_STAT_ENABLE |
3908 | #if EV_STAT_ENABLE |
1922 | |
3909 | |
1923 | # ifdef _WIN32 |
3910 | # ifdef _WIN32 |
1924 | # undef lstat |
3911 | # undef lstat |
1925 | # define lstat(a,b) _stati64 (a,b) |
3912 | # define lstat(a,b) _stati64 (a,b) |
1926 | # endif |
3913 | # endif |
1927 | |
3914 | |
1928 | #define DEF_STAT_INTERVAL 5.0074891 |
3915 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
3916 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
1929 | #define MIN_STAT_INTERVAL 0.1074891 |
3917 | #define MIN_STAT_INTERVAL 0.1074891 |
1930 | |
3918 | |
1931 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
3919 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
1932 | |
3920 | |
1933 | #if EV_USE_INOTIFY |
3921 | #if EV_USE_INOTIFY |
1934 | # define EV_INOTIFY_BUFSIZE 8192 |
3922 | |
|
|
3923 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
3924 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
1935 | |
3925 | |
1936 | static void noinline |
3926 | static void noinline |
1937 | infy_add (EV_P_ ev_stat *w) |
3927 | infy_add (EV_P_ ev_stat *w) |
1938 | { |
3928 | { |
1939 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
3929 | w->wd = inotify_add_watch (fs_fd, w->path, |
|
|
3930 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
|
|
3931 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
|
|
3932 | | IN_DONT_FOLLOW | IN_MASK_ADD); |
1940 | |
3933 | |
1941 | if (w->wd < 0) |
3934 | if (w->wd >= 0) |
|
|
3935 | { |
|
|
3936 | struct statfs sfs; |
|
|
3937 | |
|
|
3938 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
3939 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
3940 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
3941 | |
|
|
3942 | if (!fs_2625) |
|
|
3943 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3944 | else if (!statfs (w->path, &sfs) |
|
|
3945 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
3946 | || sfs.f_type == 0x4006 /* fat */ |
|
|
3947 | || sfs.f_type == 0x4d44 /* msdos */ |
|
|
3948 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
3949 | || sfs.f_type == 0x72b6 /* jffs2 */ |
|
|
3950 | || sfs.f_type == 0x858458f6 /* ramfs */ |
|
|
3951 | || sfs.f_type == 0x5346544e /* ntfs */ |
|
|
3952 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
3953 | || sfs.f_type == 0x9123683e /* btrfs */ |
|
|
3954 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
3955 | || sfs.f_type == 0x01021994 /* tmpfs */ |
|
|
3956 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
3957 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
3958 | else |
|
|
3959 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
1942 | { |
3960 | } |
1943 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
3961 | else |
|
|
3962 | { |
|
|
3963 | /* can't use inotify, continue to stat */ |
|
|
3964 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
1944 | |
3965 | |
1945 | /* monitor some parent directory for speedup hints */ |
3966 | /* if path is not there, monitor some parent directory for speedup hints */ |
|
|
3967 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
|
|
3968 | /* but an efficiency issue only */ |
1946 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
3969 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
1947 | { |
3970 | { |
1948 | char path [4096]; |
3971 | char path [4096]; |
1949 | strcpy (path, w->path); |
3972 | strcpy (path, w->path); |
1950 | |
3973 | |
… | |
… | |
1953 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
3976 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
1954 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
3977 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
1955 | |
3978 | |
1956 | char *pend = strrchr (path, '/'); |
3979 | char *pend = strrchr (path, '/'); |
1957 | |
3980 | |
1958 | if (!pend) |
3981 | if (!pend || pend == path) |
1959 | break; /* whoops, no '/', complain to your admin */ |
3982 | break; |
1960 | |
3983 | |
1961 | *pend = 0; |
3984 | *pend = 0; |
1962 | w->wd = inotify_add_watch (fs_fd, path, mask); |
3985 | w->wd = inotify_add_watch (fs_fd, path, mask); |
1963 | } |
3986 | } |
1964 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
3987 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
1965 | } |
3988 | } |
1966 | } |
3989 | } |
1967 | else |
|
|
1968 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
1969 | |
3990 | |
1970 | if (w->wd >= 0) |
3991 | if (w->wd >= 0) |
1971 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3992 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
|
|
3993 | |
|
|
3994 | /* now re-arm timer, if required */ |
|
|
3995 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
|
|
3996 | ev_timer_again (EV_A_ &w->timer); |
|
|
3997 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
1972 | } |
3998 | } |
1973 | |
3999 | |
1974 | static void noinline |
4000 | static void noinline |
1975 | infy_del (EV_P_ ev_stat *w) |
4001 | infy_del (EV_P_ ev_stat *w) |
1976 | { |
4002 | { |
… | |
… | |
1979 | |
4005 | |
1980 | if (wd < 0) |
4006 | if (wd < 0) |
1981 | return; |
4007 | return; |
1982 | |
4008 | |
1983 | w->wd = -2; |
4009 | w->wd = -2; |
1984 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
4010 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
1985 | wlist_del (&fs_hash [slot].head, (WL)w); |
4011 | wlist_del (&fs_hash [slot].head, (WL)w); |
1986 | |
4012 | |
1987 | /* remove this watcher, if others are watching it, they will rearm */ |
4013 | /* remove this watcher, if others are watching it, they will rearm */ |
1988 | inotify_rm_watch (fs_fd, wd); |
4014 | inotify_rm_watch (fs_fd, wd); |
1989 | } |
4015 | } |
1990 | |
4016 | |
1991 | static void noinline |
4017 | static void noinline |
1992 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
4018 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
1993 | { |
4019 | { |
1994 | if (slot < 0) |
4020 | if (slot < 0) |
1995 | /* overflow, need to check for all hahs slots */ |
4021 | /* overflow, need to check for all hash slots */ |
1996 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
4022 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
1997 | infy_wd (EV_A_ slot, wd, ev); |
4023 | infy_wd (EV_A_ slot, wd, ev); |
1998 | else |
4024 | else |
1999 | { |
4025 | { |
2000 | WL w_; |
4026 | WL w_; |
2001 | |
4027 | |
2002 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
4028 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
2003 | { |
4029 | { |
2004 | ev_stat *w = (ev_stat *)w_; |
4030 | ev_stat *w = (ev_stat *)w_; |
2005 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
4031 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
2006 | |
4032 | |
2007 | if (w->wd == wd || wd == -1) |
4033 | if (w->wd == wd || wd == -1) |
2008 | { |
4034 | { |
2009 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
4035 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2010 | { |
4036 | { |
|
|
4037 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
2011 | w->wd = -1; |
4038 | w->wd = -1; |
2012 | infy_add (EV_A_ w); /* re-add, no matter what */ |
4039 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2013 | } |
4040 | } |
2014 | |
4041 | |
2015 | stat_timer_cb (EV_A_ &w->timer, 0); |
4042 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
2020 | |
4047 | |
2021 | static void |
4048 | static void |
2022 | infy_cb (EV_P_ ev_io *w, int revents) |
4049 | infy_cb (EV_P_ ev_io *w, int revents) |
2023 | { |
4050 | { |
2024 | char buf [EV_INOTIFY_BUFSIZE]; |
4051 | char buf [EV_INOTIFY_BUFSIZE]; |
2025 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2026 | int ofs; |
4052 | int ofs; |
2027 | int len = read (fs_fd, buf, sizeof (buf)); |
4053 | int len = read (fs_fd, buf, sizeof (buf)); |
2028 | |
4054 | |
2029 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
4055 | for (ofs = 0; ofs < len; ) |
|
|
4056 | { |
|
|
4057 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2030 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4058 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
4059 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
4060 | } |
2031 | } |
4061 | } |
2032 | |
4062 | |
2033 | void inline_size |
4063 | inline_size void ecb_cold |
|
|
4064 | ev_check_2625 (EV_P) |
|
|
4065 | { |
|
|
4066 | /* kernels < 2.6.25 are borked |
|
|
4067 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
4068 | */ |
|
|
4069 | if (ev_linux_version () < 0x020619) |
|
|
4070 | return; |
|
|
4071 | |
|
|
4072 | fs_2625 = 1; |
|
|
4073 | } |
|
|
4074 | |
|
|
4075 | inline_size int |
|
|
4076 | infy_newfd (void) |
|
|
4077 | { |
|
|
4078 | #if defined IN_CLOEXEC && defined IN_NONBLOCK |
|
|
4079 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
4080 | if (fd >= 0) |
|
|
4081 | return fd; |
|
|
4082 | #endif |
|
|
4083 | return inotify_init (); |
|
|
4084 | } |
|
|
4085 | |
|
|
4086 | inline_size void |
2034 | infy_init (EV_P) |
4087 | infy_init (EV_P) |
2035 | { |
4088 | { |
2036 | if (fs_fd != -2) |
4089 | if (fs_fd != -2) |
2037 | return; |
4090 | return; |
2038 | |
4091 | |
|
|
4092 | fs_fd = -1; |
|
|
4093 | |
|
|
4094 | ev_check_2625 (EV_A); |
|
|
4095 | |
2039 | fs_fd = inotify_init (); |
4096 | fs_fd = infy_newfd (); |
2040 | |
4097 | |
2041 | if (fs_fd >= 0) |
4098 | if (fs_fd >= 0) |
2042 | { |
4099 | { |
|
|
4100 | fd_intern (fs_fd); |
2043 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
4101 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2044 | ev_set_priority (&fs_w, EV_MAXPRI); |
4102 | ev_set_priority (&fs_w, EV_MAXPRI); |
2045 | ev_io_start (EV_A_ &fs_w); |
4103 | ev_io_start (EV_A_ &fs_w); |
|
|
4104 | ev_unref (EV_A); |
2046 | } |
4105 | } |
2047 | } |
4106 | } |
2048 | |
4107 | |
2049 | void inline_size |
4108 | inline_size void |
2050 | infy_fork (EV_P) |
4109 | infy_fork (EV_P) |
2051 | { |
4110 | { |
2052 | int slot; |
4111 | int slot; |
2053 | |
4112 | |
2054 | if (fs_fd < 0) |
4113 | if (fs_fd < 0) |
2055 | return; |
4114 | return; |
2056 | |
4115 | |
|
|
4116 | ev_ref (EV_A); |
|
|
4117 | ev_io_stop (EV_A_ &fs_w); |
2057 | close (fs_fd); |
4118 | close (fs_fd); |
2058 | fs_fd = inotify_init (); |
4119 | fs_fd = infy_newfd (); |
2059 | |
4120 | |
|
|
4121 | if (fs_fd >= 0) |
|
|
4122 | { |
|
|
4123 | fd_intern (fs_fd); |
|
|
4124 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
4125 | ev_io_start (EV_A_ &fs_w); |
|
|
4126 | ev_unref (EV_A); |
|
|
4127 | } |
|
|
4128 | |
2060 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
4129 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
2061 | { |
4130 | { |
2062 | WL w_ = fs_hash [slot].head; |
4131 | WL w_ = fs_hash [slot].head; |
2063 | fs_hash [slot].head = 0; |
4132 | fs_hash [slot].head = 0; |
2064 | |
4133 | |
2065 | while (w_) |
4134 | while (w_) |
… | |
… | |
2070 | w->wd = -1; |
4139 | w->wd = -1; |
2071 | |
4140 | |
2072 | if (fs_fd >= 0) |
4141 | if (fs_fd >= 0) |
2073 | infy_add (EV_A_ w); /* re-add, no matter what */ |
4142 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2074 | else |
4143 | else |
|
|
4144 | { |
|
|
4145 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
4146 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2075 | ev_timer_start (EV_A_ &w->timer); |
4147 | ev_timer_again (EV_A_ &w->timer); |
|
|
4148 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
4149 | } |
2076 | } |
4150 | } |
2077 | |
|
|
2078 | } |
4151 | } |
2079 | } |
4152 | } |
2080 | |
4153 | |
|
|
4154 | #endif |
|
|
4155 | |
|
|
4156 | #ifdef _WIN32 |
|
|
4157 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
4158 | #else |
|
|
4159 | # define EV_LSTAT(p,b) lstat (p, b) |
2081 | #endif |
4160 | #endif |
2082 | |
4161 | |
2083 | void |
4162 | void |
2084 | ev_stat_stat (EV_P_ ev_stat *w) |
4163 | ev_stat_stat (EV_P_ ev_stat *w) EV_THROW |
2085 | { |
4164 | { |
2086 | if (lstat (w->path, &w->attr) < 0) |
4165 | if (lstat (w->path, &w->attr) < 0) |
2087 | w->attr.st_nlink = 0; |
4166 | w->attr.st_nlink = 0; |
2088 | else if (!w->attr.st_nlink) |
4167 | else if (!w->attr.st_nlink) |
2089 | w->attr.st_nlink = 1; |
4168 | w->attr.st_nlink = 1; |
… | |
… | |
2092 | static void noinline |
4171 | static void noinline |
2093 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
4172 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2094 | { |
4173 | { |
2095 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
4174 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2096 | |
4175 | |
2097 | /* we copy this here each the time so that */ |
4176 | ev_statdata prev = w->attr; |
2098 | /* prev has the old value when the callback gets invoked */ |
|
|
2099 | w->prev = w->attr; |
|
|
2100 | ev_stat_stat (EV_A_ w); |
4177 | ev_stat_stat (EV_A_ w); |
2101 | |
4178 | |
2102 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
4179 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2103 | if ( |
4180 | if ( |
2104 | w->prev.st_dev != w->attr.st_dev |
4181 | prev.st_dev != w->attr.st_dev |
2105 | || w->prev.st_ino != w->attr.st_ino |
4182 | || prev.st_ino != w->attr.st_ino |
2106 | || w->prev.st_mode != w->attr.st_mode |
4183 | || prev.st_mode != w->attr.st_mode |
2107 | || w->prev.st_nlink != w->attr.st_nlink |
4184 | || prev.st_nlink != w->attr.st_nlink |
2108 | || w->prev.st_uid != w->attr.st_uid |
4185 | || prev.st_uid != w->attr.st_uid |
2109 | || w->prev.st_gid != w->attr.st_gid |
4186 | || prev.st_gid != w->attr.st_gid |
2110 | || w->prev.st_rdev != w->attr.st_rdev |
4187 | || prev.st_rdev != w->attr.st_rdev |
2111 | || w->prev.st_size != w->attr.st_size |
4188 | || prev.st_size != w->attr.st_size |
2112 | || w->prev.st_atime != w->attr.st_atime |
4189 | || prev.st_atime != w->attr.st_atime |
2113 | || w->prev.st_mtime != w->attr.st_mtime |
4190 | || prev.st_mtime != w->attr.st_mtime |
2114 | || w->prev.st_ctime != w->attr.st_ctime |
4191 | || prev.st_ctime != w->attr.st_ctime |
2115 | ) { |
4192 | ) { |
|
|
4193 | /* we only update w->prev on actual differences */ |
|
|
4194 | /* in case we test more often than invoke the callback, */ |
|
|
4195 | /* to ensure that prev is always different to attr */ |
|
|
4196 | w->prev = prev; |
|
|
4197 | |
2116 | #if EV_USE_INOTIFY |
4198 | #if EV_USE_INOTIFY |
|
|
4199 | if (fs_fd >= 0) |
|
|
4200 | { |
2117 | infy_del (EV_A_ w); |
4201 | infy_del (EV_A_ w); |
2118 | infy_add (EV_A_ w); |
4202 | infy_add (EV_A_ w); |
2119 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
4203 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
4204 | } |
2120 | #endif |
4205 | #endif |
2121 | |
4206 | |
2122 | ev_feed_event (EV_A_ w, EV_STAT); |
4207 | ev_feed_event (EV_A_ w, EV_STAT); |
2123 | } |
4208 | } |
2124 | } |
4209 | } |
2125 | |
4210 | |
2126 | void |
4211 | void |
2127 | ev_stat_start (EV_P_ ev_stat *w) |
4212 | ev_stat_start (EV_P_ ev_stat *w) EV_THROW |
2128 | { |
4213 | { |
2129 | if (expect_false (ev_is_active (w))) |
4214 | if (expect_false (ev_is_active (w))) |
2130 | return; |
4215 | return; |
2131 | |
4216 | |
2132 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2133 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2134 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2135 | |
|
|
2136 | ev_stat_stat (EV_A_ w); |
4217 | ev_stat_stat (EV_A_ w); |
2137 | |
4218 | |
|
|
4219 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2138 | if (w->interval < MIN_STAT_INTERVAL) |
4220 | w->interval = MIN_STAT_INTERVAL; |
2139 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2140 | |
4221 | |
2141 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
4222 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2142 | ev_set_priority (&w->timer, ev_priority (w)); |
4223 | ev_set_priority (&w->timer, ev_priority (w)); |
2143 | |
4224 | |
2144 | #if EV_USE_INOTIFY |
4225 | #if EV_USE_INOTIFY |
2145 | infy_init (EV_A); |
4226 | infy_init (EV_A); |
2146 | |
4227 | |
2147 | if (fs_fd >= 0) |
4228 | if (fs_fd >= 0) |
2148 | infy_add (EV_A_ w); |
4229 | infy_add (EV_A_ w); |
2149 | else |
4230 | else |
2150 | #endif |
4231 | #endif |
|
|
4232 | { |
2151 | ev_timer_start (EV_A_ &w->timer); |
4233 | ev_timer_again (EV_A_ &w->timer); |
|
|
4234 | ev_unref (EV_A); |
|
|
4235 | } |
2152 | |
4236 | |
2153 | ev_start (EV_A_ (W)w, 1); |
4237 | ev_start (EV_A_ (W)w, 1); |
|
|
4238 | |
|
|
4239 | EV_FREQUENT_CHECK; |
2154 | } |
4240 | } |
2155 | |
4241 | |
2156 | void |
4242 | void |
2157 | ev_stat_stop (EV_P_ ev_stat *w) |
4243 | ev_stat_stop (EV_P_ ev_stat *w) EV_THROW |
2158 | { |
4244 | { |
2159 | clear_pending (EV_A_ (W)w); |
4245 | clear_pending (EV_A_ (W)w); |
2160 | if (expect_false (!ev_is_active (w))) |
4246 | if (expect_false (!ev_is_active (w))) |
2161 | return; |
4247 | return; |
2162 | |
4248 | |
|
|
4249 | EV_FREQUENT_CHECK; |
|
|
4250 | |
2163 | #if EV_USE_INOTIFY |
4251 | #if EV_USE_INOTIFY |
2164 | infy_del (EV_A_ w); |
4252 | infy_del (EV_A_ w); |
2165 | #endif |
4253 | #endif |
|
|
4254 | |
|
|
4255 | if (ev_is_active (&w->timer)) |
|
|
4256 | { |
|
|
4257 | ev_ref (EV_A); |
2166 | ev_timer_stop (EV_A_ &w->timer); |
4258 | ev_timer_stop (EV_A_ &w->timer); |
|
|
4259 | } |
2167 | |
4260 | |
2168 | ev_stop (EV_A_ (W)w); |
4261 | ev_stop (EV_A_ (W)w); |
|
|
4262 | |
|
|
4263 | EV_FREQUENT_CHECK; |
2169 | } |
4264 | } |
2170 | #endif |
4265 | #endif |
2171 | |
4266 | |
2172 | #if EV_IDLE_ENABLE |
4267 | #if EV_IDLE_ENABLE |
2173 | void |
4268 | void |
2174 | ev_idle_start (EV_P_ ev_idle *w) |
4269 | ev_idle_start (EV_P_ ev_idle *w) EV_THROW |
2175 | { |
4270 | { |
2176 | if (expect_false (ev_is_active (w))) |
4271 | if (expect_false (ev_is_active (w))) |
2177 | return; |
4272 | return; |
2178 | |
4273 | |
2179 | pri_adjust (EV_A_ (W)w); |
4274 | pri_adjust (EV_A_ (W)w); |
|
|
4275 | |
|
|
4276 | EV_FREQUENT_CHECK; |
2180 | |
4277 | |
2181 | { |
4278 | { |
2182 | int active = ++idlecnt [ABSPRI (w)]; |
4279 | int active = ++idlecnt [ABSPRI (w)]; |
2183 | |
4280 | |
2184 | ++idleall; |
4281 | ++idleall; |
2185 | ev_start (EV_A_ (W)w, active); |
4282 | ev_start (EV_A_ (W)w, active); |
2186 | |
4283 | |
2187 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
4284 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2188 | idles [ABSPRI (w)][active - 1] = w; |
4285 | idles [ABSPRI (w)][active - 1] = w; |
2189 | } |
4286 | } |
|
|
4287 | |
|
|
4288 | EV_FREQUENT_CHECK; |
2190 | } |
4289 | } |
2191 | |
4290 | |
2192 | void |
4291 | void |
2193 | ev_idle_stop (EV_P_ ev_idle *w) |
4292 | ev_idle_stop (EV_P_ ev_idle *w) EV_THROW |
2194 | { |
4293 | { |
2195 | clear_pending (EV_A_ (W)w); |
4294 | clear_pending (EV_A_ (W)w); |
2196 | if (expect_false (!ev_is_active (w))) |
4295 | if (expect_false (!ev_is_active (w))) |
2197 | return; |
4296 | return; |
2198 | |
4297 | |
|
|
4298 | EV_FREQUENT_CHECK; |
|
|
4299 | |
2199 | { |
4300 | { |
2200 | int active = ((W)w)->active; |
4301 | int active = ev_active (w); |
2201 | |
4302 | |
2202 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
4303 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2203 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
4304 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2204 | |
4305 | |
2205 | ev_stop (EV_A_ (W)w); |
4306 | ev_stop (EV_A_ (W)w); |
2206 | --idleall; |
4307 | --idleall; |
2207 | } |
4308 | } |
2208 | } |
|
|
2209 | #endif |
|
|
2210 | |
4309 | |
|
|
4310 | EV_FREQUENT_CHECK; |
|
|
4311 | } |
|
|
4312 | #endif |
|
|
4313 | |
|
|
4314 | #if EV_PREPARE_ENABLE |
2211 | void |
4315 | void |
2212 | ev_prepare_start (EV_P_ ev_prepare *w) |
4316 | ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW |
2213 | { |
4317 | { |
2214 | if (expect_false (ev_is_active (w))) |
4318 | if (expect_false (ev_is_active (w))) |
2215 | return; |
4319 | return; |
|
|
4320 | |
|
|
4321 | EV_FREQUENT_CHECK; |
2216 | |
4322 | |
2217 | ev_start (EV_A_ (W)w, ++preparecnt); |
4323 | ev_start (EV_A_ (W)w, ++preparecnt); |
2218 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
4324 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2219 | prepares [preparecnt - 1] = w; |
4325 | prepares [preparecnt - 1] = w; |
|
|
4326 | |
|
|
4327 | EV_FREQUENT_CHECK; |
2220 | } |
4328 | } |
2221 | |
4329 | |
2222 | void |
4330 | void |
2223 | ev_prepare_stop (EV_P_ ev_prepare *w) |
4331 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW |
2224 | { |
4332 | { |
2225 | clear_pending (EV_A_ (W)w); |
4333 | clear_pending (EV_A_ (W)w); |
2226 | if (expect_false (!ev_is_active (w))) |
4334 | if (expect_false (!ev_is_active (w))) |
2227 | return; |
4335 | return; |
2228 | |
4336 | |
|
|
4337 | EV_FREQUENT_CHECK; |
|
|
4338 | |
2229 | { |
4339 | { |
2230 | int active = ((W)w)->active; |
4340 | int active = ev_active (w); |
|
|
4341 | |
2231 | prepares [active - 1] = prepares [--preparecnt]; |
4342 | prepares [active - 1] = prepares [--preparecnt]; |
2232 | ((W)prepares [active - 1])->active = active; |
4343 | ev_active (prepares [active - 1]) = active; |
2233 | } |
4344 | } |
2234 | |
4345 | |
2235 | ev_stop (EV_A_ (W)w); |
4346 | ev_stop (EV_A_ (W)w); |
2236 | } |
|
|
2237 | |
4347 | |
|
|
4348 | EV_FREQUENT_CHECK; |
|
|
4349 | } |
|
|
4350 | #endif |
|
|
4351 | |
|
|
4352 | #if EV_CHECK_ENABLE |
2238 | void |
4353 | void |
2239 | ev_check_start (EV_P_ ev_check *w) |
4354 | ev_check_start (EV_P_ ev_check *w) EV_THROW |
2240 | { |
4355 | { |
2241 | if (expect_false (ev_is_active (w))) |
4356 | if (expect_false (ev_is_active (w))) |
2242 | return; |
4357 | return; |
|
|
4358 | |
|
|
4359 | EV_FREQUENT_CHECK; |
2243 | |
4360 | |
2244 | ev_start (EV_A_ (W)w, ++checkcnt); |
4361 | ev_start (EV_A_ (W)w, ++checkcnt); |
2245 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
4362 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2246 | checks [checkcnt - 1] = w; |
4363 | checks [checkcnt - 1] = w; |
|
|
4364 | |
|
|
4365 | EV_FREQUENT_CHECK; |
2247 | } |
4366 | } |
2248 | |
4367 | |
2249 | void |
4368 | void |
2250 | ev_check_stop (EV_P_ ev_check *w) |
4369 | ev_check_stop (EV_P_ ev_check *w) EV_THROW |
2251 | { |
4370 | { |
2252 | clear_pending (EV_A_ (W)w); |
4371 | clear_pending (EV_A_ (W)w); |
2253 | if (expect_false (!ev_is_active (w))) |
4372 | if (expect_false (!ev_is_active (w))) |
2254 | return; |
4373 | return; |
2255 | |
4374 | |
|
|
4375 | EV_FREQUENT_CHECK; |
|
|
4376 | |
2256 | { |
4377 | { |
2257 | int active = ((W)w)->active; |
4378 | int active = ev_active (w); |
|
|
4379 | |
2258 | checks [active - 1] = checks [--checkcnt]; |
4380 | checks [active - 1] = checks [--checkcnt]; |
2259 | ((W)checks [active - 1])->active = active; |
4381 | ev_active (checks [active - 1]) = active; |
2260 | } |
4382 | } |
2261 | |
4383 | |
2262 | ev_stop (EV_A_ (W)w); |
4384 | ev_stop (EV_A_ (W)w); |
|
|
4385 | |
|
|
4386 | EV_FREQUENT_CHECK; |
2263 | } |
4387 | } |
|
|
4388 | #endif |
2264 | |
4389 | |
2265 | #if EV_EMBED_ENABLE |
4390 | #if EV_EMBED_ENABLE |
2266 | void noinline |
4391 | void noinline |
2267 | ev_embed_sweep (EV_P_ ev_embed *w) |
4392 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
2268 | { |
4393 | { |
2269 | ev_loop (w->other, EVLOOP_NONBLOCK); |
4394 | ev_run (w->other, EVRUN_NOWAIT); |
2270 | } |
4395 | } |
2271 | |
4396 | |
2272 | static void |
4397 | static void |
2273 | embed_io_cb (EV_P_ ev_io *io, int revents) |
4398 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2274 | { |
4399 | { |
2275 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
4400 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2276 | |
4401 | |
2277 | if (ev_cb (w)) |
4402 | if (ev_cb (w)) |
2278 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
4403 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2279 | else |
4404 | else |
2280 | ev_loop (w->other, EVLOOP_NONBLOCK); |
4405 | ev_run (w->other, EVRUN_NOWAIT); |
2281 | } |
4406 | } |
2282 | |
4407 | |
2283 | static void |
4408 | static void |
2284 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
4409 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2285 | { |
4410 | { |
2286 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
4411 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2287 | |
4412 | |
2288 | { |
4413 | { |
2289 | struct ev_loop *loop = w->other; |
4414 | EV_P = w->other; |
2290 | |
4415 | |
2291 | while (fdchangecnt) |
4416 | while (fdchangecnt) |
2292 | { |
4417 | { |
2293 | fd_reify (EV_A); |
4418 | fd_reify (EV_A); |
2294 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
4419 | ev_run (EV_A_ EVRUN_NOWAIT); |
2295 | } |
4420 | } |
2296 | } |
4421 | } |
|
|
4422 | } |
|
|
4423 | |
|
|
4424 | static void |
|
|
4425 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
4426 | { |
|
|
4427 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
4428 | |
|
|
4429 | ev_embed_stop (EV_A_ w); |
|
|
4430 | |
|
|
4431 | { |
|
|
4432 | EV_P = w->other; |
|
|
4433 | |
|
|
4434 | ev_loop_fork (EV_A); |
|
|
4435 | ev_run (EV_A_ EVRUN_NOWAIT); |
|
|
4436 | } |
|
|
4437 | |
|
|
4438 | ev_embed_start (EV_A_ w); |
2297 | } |
4439 | } |
2298 | |
4440 | |
2299 | #if 0 |
4441 | #if 0 |
2300 | static void |
4442 | static void |
2301 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
4443 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
… | |
… | |
2303 | ev_idle_stop (EV_A_ idle); |
4445 | ev_idle_stop (EV_A_ idle); |
2304 | } |
4446 | } |
2305 | #endif |
4447 | #endif |
2306 | |
4448 | |
2307 | void |
4449 | void |
2308 | ev_embed_start (EV_P_ ev_embed *w) |
4450 | ev_embed_start (EV_P_ ev_embed *w) EV_THROW |
2309 | { |
4451 | { |
2310 | if (expect_false (ev_is_active (w))) |
4452 | if (expect_false (ev_is_active (w))) |
2311 | return; |
4453 | return; |
2312 | |
4454 | |
2313 | { |
4455 | { |
2314 | struct ev_loop *loop = w->other; |
4456 | EV_P = w->other; |
2315 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
4457 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2316 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
4458 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2317 | } |
4459 | } |
|
|
4460 | |
|
|
4461 | EV_FREQUENT_CHECK; |
2318 | |
4462 | |
2319 | ev_set_priority (&w->io, ev_priority (w)); |
4463 | ev_set_priority (&w->io, ev_priority (w)); |
2320 | ev_io_start (EV_A_ &w->io); |
4464 | ev_io_start (EV_A_ &w->io); |
2321 | |
4465 | |
2322 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
4466 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2323 | ev_set_priority (&w->prepare, EV_MINPRI); |
4467 | ev_set_priority (&w->prepare, EV_MINPRI); |
2324 | ev_prepare_start (EV_A_ &w->prepare); |
4468 | ev_prepare_start (EV_A_ &w->prepare); |
2325 | |
4469 | |
|
|
4470 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
4471 | ev_fork_start (EV_A_ &w->fork); |
|
|
4472 | |
2326 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
4473 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
2327 | |
4474 | |
2328 | ev_start (EV_A_ (W)w, 1); |
4475 | ev_start (EV_A_ (W)w, 1); |
|
|
4476 | |
|
|
4477 | EV_FREQUENT_CHECK; |
2329 | } |
4478 | } |
2330 | |
4479 | |
2331 | void |
4480 | void |
2332 | ev_embed_stop (EV_P_ ev_embed *w) |
4481 | ev_embed_stop (EV_P_ ev_embed *w) EV_THROW |
2333 | { |
4482 | { |
2334 | clear_pending (EV_A_ (W)w); |
4483 | clear_pending (EV_A_ (W)w); |
2335 | if (expect_false (!ev_is_active (w))) |
4484 | if (expect_false (!ev_is_active (w))) |
2336 | return; |
4485 | return; |
2337 | |
4486 | |
|
|
4487 | EV_FREQUENT_CHECK; |
|
|
4488 | |
2338 | ev_io_stop (EV_A_ &w->io); |
4489 | ev_io_stop (EV_A_ &w->io); |
2339 | ev_prepare_stop (EV_A_ &w->prepare); |
4490 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
4491 | ev_fork_stop (EV_A_ &w->fork); |
2340 | |
4492 | |
2341 | ev_stop (EV_A_ (W)w); |
4493 | ev_stop (EV_A_ (W)w); |
|
|
4494 | |
|
|
4495 | EV_FREQUENT_CHECK; |
2342 | } |
4496 | } |
2343 | #endif |
4497 | #endif |
2344 | |
4498 | |
2345 | #if EV_FORK_ENABLE |
4499 | #if EV_FORK_ENABLE |
2346 | void |
4500 | void |
2347 | ev_fork_start (EV_P_ ev_fork *w) |
4501 | ev_fork_start (EV_P_ ev_fork *w) EV_THROW |
2348 | { |
4502 | { |
2349 | if (expect_false (ev_is_active (w))) |
4503 | if (expect_false (ev_is_active (w))) |
2350 | return; |
4504 | return; |
|
|
4505 | |
|
|
4506 | EV_FREQUENT_CHECK; |
2351 | |
4507 | |
2352 | ev_start (EV_A_ (W)w, ++forkcnt); |
4508 | ev_start (EV_A_ (W)w, ++forkcnt); |
2353 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
4509 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2354 | forks [forkcnt - 1] = w; |
4510 | forks [forkcnt - 1] = w; |
|
|
4511 | |
|
|
4512 | EV_FREQUENT_CHECK; |
2355 | } |
4513 | } |
2356 | |
4514 | |
2357 | void |
4515 | void |
2358 | ev_fork_stop (EV_P_ ev_fork *w) |
4516 | ev_fork_stop (EV_P_ ev_fork *w) EV_THROW |
2359 | { |
4517 | { |
2360 | clear_pending (EV_A_ (W)w); |
4518 | clear_pending (EV_A_ (W)w); |
2361 | if (expect_false (!ev_is_active (w))) |
4519 | if (expect_false (!ev_is_active (w))) |
2362 | return; |
4520 | return; |
2363 | |
4521 | |
|
|
4522 | EV_FREQUENT_CHECK; |
|
|
4523 | |
2364 | { |
4524 | { |
2365 | int active = ((W)w)->active; |
4525 | int active = ev_active (w); |
|
|
4526 | |
2366 | forks [active - 1] = forks [--forkcnt]; |
4527 | forks [active - 1] = forks [--forkcnt]; |
2367 | ((W)forks [active - 1])->active = active; |
4528 | ev_active (forks [active - 1]) = active; |
2368 | } |
4529 | } |
2369 | |
4530 | |
2370 | ev_stop (EV_A_ (W)w); |
4531 | ev_stop (EV_A_ (W)w); |
|
|
4532 | |
|
|
4533 | EV_FREQUENT_CHECK; |
|
|
4534 | } |
|
|
4535 | #endif |
|
|
4536 | |
|
|
4537 | #if EV_CLEANUP_ENABLE |
|
|
4538 | void |
|
|
4539 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW |
|
|
4540 | { |
|
|
4541 | if (expect_false (ev_is_active (w))) |
|
|
4542 | return; |
|
|
4543 | |
|
|
4544 | EV_FREQUENT_CHECK; |
|
|
4545 | |
|
|
4546 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
4547 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
|
|
4548 | cleanups [cleanupcnt - 1] = w; |
|
|
4549 | |
|
|
4550 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
4551 | ev_unref (EV_A); |
|
|
4552 | EV_FREQUENT_CHECK; |
|
|
4553 | } |
|
|
4554 | |
|
|
4555 | void |
|
|
4556 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW |
|
|
4557 | { |
|
|
4558 | clear_pending (EV_A_ (W)w); |
|
|
4559 | if (expect_false (!ev_is_active (w))) |
|
|
4560 | return; |
|
|
4561 | |
|
|
4562 | EV_FREQUENT_CHECK; |
|
|
4563 | ev_ref (EV_A); |
|
|
4564 | |
|
|
4565 | { |
|
|
4566 | int active = ev_active (w); |
|
|
4567 | |
|
|
4568 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
4569 | ev_active (cleanups [active - 1]) = active; |
|
|
4570 | } |
|
|
4571 | |
|
|
4572 | ev_stop (EV_A_ (W)w); |
|
|
4573 | |
|
|
4574 | EV_FREQUENT_CHECK; |
|
|
4575 | } |
|
|
4576 | #endif |
|
|
4577 | |
|
|
4578 | #if EV_ASYNC_ENABLE |
|
|
4579 | void |
|
|
4580 | ev_async_start (EV_P_ ev_async *w) EV_THROW |
|
|
4581 | { |
|
|
4582 | if (expect_false (ev_is_active (w))) |
|
|
4583 | return; |
|
|
4584 | |
|
|
4585 | w->sent = 0; |
|
|
4586 | |
|
|
4587 | evpipe_init (EV_A); |
|
|
4588 | |
|
|
4589 | EV_FREQUENT_CHECK; |
|
|
4590 | |
|
|
4591 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
4592 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
4593 | asyncs [asynccnt - 1] = w; |
|
|
4594 | |
|
|
4595 | EV_FREQUENT_CHECK; |
|
|
4596 | } |
|
|
4597 | |
|
|
4598 | void |
|
|
4599 | ev_async_stop (EV_P_ ev_async *w) EV_THROW |
|
|
4600 | { |
|
|
4601 | clear_pending (EV_A_ (W)w); |
|
|
4602 | if (expect_false (!ev_is_active (w))) |
|
|
4603 | return; |
|
|
4604 | |
|
|
4605 | EV_FREQUENT_CHECK; |
|
|
4606 | |
|
|
4607 | { |
|
|
4608 | int active = ev_active (w); |
|
|
4609 | |
|
|
4610 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
4611 | ev_active (asyncs [active - 1]) = active; |
|
|
4612 | } |
|
|
4613 | |
|
|
4614 | ev_stop (EV_A_ (W)w); |
|
|
4615 | |
|
|
4616 | EV_FREQUENT_CHECK; |
|
|
4617 | } |
|
|
4618 | |
|
|
4619 | void |
|
|
4620 | ev_async_send (EV_P_ ev_async *w) EV_THROW |
|
|
4621 | { |
|
|
4622 | w->sent = 1; |
|
|
4623 | evpipe_write (EV_A_ &async_pending); |
2371 | } |
4624 | } |
2372 | #endif |
4625 | #endif |
2373 | |
4626 | |
2374 | /*****************************************************************************/ |
4627 | /*****************************************************************************/ |
2375 | |
4628 | |
… | |
… | |
2385 | once_cb (EV_P_ struct ev_once *once, int revents) |
4638 | once_cb (EV_P_ struct ev_once *once, int revents) |
2386 | { |
4639 | { |
2387 | void (*cb)(int revents, void *arg) = once->cb; |
4640 | void (*cb)(int revents, void *arg) = once->cb; |
2388 | void *arg = once->arg; |
4641 | void *arg = once->arg; |
2389 | |
4642 | |
2390 | ev_io_stop (EV_A_ &once->io); |
4643 | ev_io_stop (EV_A_ &once->io); |
2391 | ev_timer_stop (EV_A_ &once->to); |
4644 | ev_timer_stop (EV_A_ &once->to); |
2392 | ev_free (once); |
4645 | ev_free (once); |
2393 | |
4646 | |
2394 | cb (revents, arg); |
4647 | cb (revents, arg); |
2395 | } |
4648 | } |
2396 | |
4649 | |
2397 | static void |
4650 | static void |
2398 | once_cb_io (EV_P_ ev_io *w, int revents) |
4651 | once_cb_io (EV_P_ ev_io *w, int revents) |
2399 | { |
4652 | { |
2400 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
4653 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
4654 | |
|
|
4655 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2401 | } |
4656 | } |
2402 | |
4657 | |
2403 | static void |
4658 | static void |
2404 | once_cb_to (EV_P_ ev_timer *w, int revents) |
4659 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2405 | { |
4660 | { |
2406 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
4661 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
4662 | |
|
|
4663 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2407 | } |
4664 | } |
2408 | |
4665 | |
2409 | void |
4666 | void |
2410 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
4667 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW |
2411 | { |
4668 | { |
2412 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4669 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
2413 | |
4670 | |
2414 | if (expect_false (!once)) |
4671 | if (expect_false (!once)) |
2415 | { |
4672 | { |
2416 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
4673 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
2417 | return; |
4674 | return; |
2418 | } |
4675 | } |
2419 | |
4676 | |
2420 | once->cb = cb; |
4677 | once->cb = cb; |
2421 | once->arg = arg; |
4678 | once->arg = arg; |
… | |
… | |
2433 | ev_timer_set (&once->to, timeout, 0.); |
4690 | ev_timer_set (&once->to, timeout, 0.); |
2434 | ev_timer_start (EV_A_ &once->to); |
4691 | ev_timer_start (EV_A_ &once->to); |
2435 | } |
4692 | } |
2436 | } |
4693 | } |
2437 | |
4694 | |
|
|
4695 | /*****************************************************************************/ |
|
|
4696 | |
|
|
4697 | #if EV_WALK_ENABLE |
|
|
4698 | void ecb_cold |
|
|
4699 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
|
|
4700 | { |
|
|
4701 | int i, j; |
|
|
4702 | ev_watcher_list *wl, *wn; |
|
|
4703 | |
|
|
4704 | if (types & (EV_IO | EV_EMBED)) |
|
|
4705 | for (i = 0; i < anfdmax; ++i) |
|
|
4706 | for (wl = anfds [i].head; wl; ) |
|
|
4707 | { |
|
|
4708 | wn = wl->next; |
|
|
4709 | |
|
|
4710 | #if EV_EMBED_ENABLE |
|
|
4711 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
4712 | { |
|
|
4713 | if (types & EV_EMBED) |
|
|
4714 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
4715 | } |
|
|
4716 | else |
|
|
4717 | #endif |
|
|
4718 | #if EV_USE_INOTIFY |
|
|
4719 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
4720 | ; |
|
|
4721 | else |
|
|
4722 | #endif |
|
|
4723 | if ((ev_io *)wl != &pipe_w) |
|
|
4724 | if (types & EV_IO) |
|
|
4725 | cb (EV_A_ EV_IO, wl); |
|
|
4726 | |
|
|
4727 | wl = wn; |
|
|
4728 | } |
|
|
4729 | |
|
|
4730 | if (types & (EV_TIMER | EV_STAT)) |
|
|
4731 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
4732 | #if EV_STAT_ENABLE |
|
|
4733 | /*TODO: timer is not always active*/ |
|
|
4734 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
4735 | { |
|
|
4736 | if (types & EV_STAT) |
|
|
4737 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
4738 | } |
|
|
4739 | else |
|
|
4740 | #endif |
|
|
4741 | if (types & EV_TIMER) |
|
|
4742 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
4743 | |
|
|
4744 | #if EV_PERIODIC_ENABLE |
|
|
4745 | if (types & EV_PERIODIC) |
|
|
4746 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
4747 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
4748 | #endif |
|
|
4749 | |
|
|
4750 | #if EV_IDLE_ENABLE |
|
|
4751 | if (types & EV_IDLE) |
|
|
4752 | for (j = NUMPRI; j--; ) |
|
|
4753 | for (i = idlecnt [j]; i--; ) |
|
|
4754 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
4755 | #endif |
|
|
4756 | |
|
|
4757 | #if EV_FORK_ENABLE |
|
|
4758 | if (types & EV_FORK) |
|
|
4759 | for (i = forkcnt; i--; ) |
|
|
4760 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
4761 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
4762 | #endif |
|
|
4763 | |
|
|
4764 | #if EV_ASYNC_ENABLE |
|
|
4765 | if (types & EV_ASYNC) |
|
|
4766 | for (i = asynccnt; i--; ) |
|
|
4767 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
4768 | #endif |
|
|
4769 | |
|
|
4770 | #if EV_PREPARE_ENABLE |
|
|
4771 | if (types & EV_PREPARE) |
|
|
4772 | for (i = preparecnt; i--; ) |
|
|
4773 | # if EV_EMBED_ENABLE |
|
|
4774 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
4775 | # endif |
|
|
4776 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
4777 | #endif |
|
|
4778 | |
|
|
4779 | #if EV_CHECK_ENABLE |
|
|
4780 | if (types & EV_CHECK) |
|
|
4781 | for (i = checkcnt; i--; ) |
|
|
4782 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
4783 | #endif |
|
|
4784 | |
|
|
4785 | #if EV_SIGNAL_ENABLE |
|
|
4786 | if (types & EV_SIGNAL) |
|
|
4787 | for (i = 0; i < EV_NSIG - 1; ++i) |
|
|
4788 | for (wl = signals [i].head; wl; ) |
|
|
4789 | { |
|
|
4790 | wn = wl->next; |
|
|
4791 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
4792 | wl = wn; |
|
|
4793 | } |
|
|
4794 | #endif |
|
|
4795 | |
|
|
4796 | #if EV_CHILD_ENABLE |
|
|
4797 | if (types & EV_CHILD) |
|
|
4798 | for (i = (EV_PID_HASHSIZE); i--; ) |
|
|
4799 | for (wl = childs [i]; wl; ) |
|
|
4800 | { |
|
|
4801 | wn = wl->next; |
|
|
4802 | cb (EV_A_ EV_CHILD, wl); |
|
|
4803 | wl = wn; |
|
|
4804 | } |
|
|
4805 | #endif |
|
|
4806 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
4807 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
4808 | } |
|
|
4809 | #endif |
|
|
4810 | |
2438 | #if EV_MULTIPLICITY |
4811 | #if EV_MULTIPLICITY |
2439 | #include "ev_wrap.h" |
4812 | #include "ev_wrap.h" |
2440 | #endif |
4813 | #endif |
2441 | |
4814 | |
2442 | #ifdef __cplusplus |
|
|
2443 | } |
|
|
2444 | #endif |
|
|
2445 | |
|
|