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_SELECT |
85 | # ifndef EV_USE_NANOSLEEP |
60 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
86 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
61 | # define EV_USE_SELECT 1 |
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62 | # else |
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63 | # define EV_USE_SELECT 0 |
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64 | # endif |
87 | # endif |
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88 | # else |
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89 | # undef EV_USE_NANOSLEEP |
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90 | # define EV_USE_NANOSLEEP 0 |
65 | # endif |
91 | # endif |
66 | |
92 | |
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93 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
67 | # ifndef EV_USE_POLL |
94 | # ifndef EV_USE_SELECT |
68 | # if HAVE_POLL && HAVE_POLL_H |
95 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
69 | # define EV_USE_POLL 1 |
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70 | # else |
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71 | # define EV_USE_POLL 0 |
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72 | # 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 |
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100 | # endif |
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101 | |
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102 | # if HAVE_POLL && HAVE_POLL_H |
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103 | # ifndef EV_USE_POLL |
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104 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
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105 | # endif |
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106 | # else |
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107 | # undef EV_USE_POLL |
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108 | # define EV_USE_POLL 0 |
73 | # endif |
109 | # endif |
74 | |
110 | |
75 | # ifndef EV_USE_EPOLL |
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76 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
111 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
77 | # define EV_USE_EPOLL 1 |
112 | # ifndef EV_USE_EPOLL |
78 | # else |
113 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
79 | # define EV_USE_EPOLL 0 |
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80 | # 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 |
81 | # endif |
118 | # endif |
82 | |
119 | |
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120 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
83 | # ifndef EV_USE_KQUEUE |
121 | # ifndef EV_USE_KQUEUE |
84 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
122 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
85 | # define EV_USE_KQUEUE 1 |
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86 | # else |
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87 | # define EV_USE_KQUEUE 0 |
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88 | # 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 |
89 | # endif |
127 | # endif |
90 | |
128 | |
91 | # ifndef EV_USE_PORT |
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92 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
129 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
93 | # define EV_USE_PORT 1 |
130 | # ifndef EV_USE_PORT |
94 | # else |
131 | # define EV_USE_PORT EV_FEATURE_BACKENDS |
95 | # define EV_USE_PORT 0 |
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96 | # 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 |
97 | # endif |
136 | # endif |
98 | |
137 | |
99 | # ifndef EV_USE_INOTIFY |
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100 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
138 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
101 | # define EV_USE_INOTIFY 1 |
139 | # ifndef EV_USE_INOTIFY |
102 | # else |
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103 | # define EV_USE_INOTIFY 0 |
140 | # define EV_USE_INOTIFY EV_FEATURE_OS |
104 | # 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 |
105 | # endif |
145 | # endif |
106 | |
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 |
107 | #endif |
154 | # endif |
108 | |
155 | |
109 | #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 | |
110 | #include <stdlib.h> |
167 | #include <stdlib.h> |
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168 | #include <string.h> |
111 | #include <fcntl.h> |
169 | #include <fcntl.h> |
112 | #include <stddef.h> |
170 | #include <stddef.h> |
113 | |
171 | |
114 | #include <stdio.h> |
172 | #include <stdio.h> |
115 | |
173 | |
116 | #include <assert.h> |
174 | #include <assert.h> |
117 | #include <errno.h> |
175 | #include <errno.h> |
118 | #include <sys/types.h> |
176 | #include <sys/types.h> |
119 | #include <time.h> |
177 | #include <time.h> |
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178 | #include <limits.h> |
120 | |
179 | |
121 | #include <signal.h> |
180 | #include <signal.h> |
122 | |
181 | |
123 | #ifdef EV_H |
182 | #ifdef EV_H |
124 | # include EV_H |
183 | # include EV_H |
125 | #else |
184 | #else |
126 | # 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 |
127 | #endif |
197 | #endif |
128 | |
198 | |
129 | #ifndef _WIN32 |
199 | #ifndef _WIN32 |
130 | # include <sys/time.h> |
200 | # include <sys/time.h> |
131 | # include <sys/wait.h> |
201 | # include <sys/wait.h> |
132 | # include <unistd.h> |
202 | # include <unistd.h> |
133 | #else |
203 | #else |
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204 | # include <io.h> |
134 | # define WIN32_LEAN_AND_MEAN |
205 | # define WIN32_LEAN_AND_MEAN |
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206 | # include <winsock2.h> |
135 | # include <windows.h> |
207 | # include <windows.h> |
136 | # ifndef EV_SELECT_IS_WINSOCKET |
208 | # ifndef EV_SELECT_IS_WINSOCKET |
137 | # define EV_SELECT_IS_WINSOCKET 1 |
209 | # define EV_SELECT_IS_WINSOCKET 1 |
138 | # 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 |
139 | #endif |
261 | # endif |
140 | |
262 | #endif |
141 | /**/ |
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142 | |
263 | |
143 | #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 |
144 | # define EV_USE_MONOTONIC 0 |
268 | # define EV_USE_MONOTONIC 0 |
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269 | # endif |
145 | #endif |
270 | #endif |
146 | |
271 | |
147 | #ifndef EV_USE_REALTIME |
272 | #ifndef EV_USE_REALTIME |
148 | # define EV_USE_REALTIME 0 |
273 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
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274 | #endif |
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275 | |
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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 |
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280 | # define EV_USE_NANOSLEEP 0 |
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281 | # endif |
149 | #endif |
282 | #endif |
150 | |
283 | |
151 | #ifndef EV_USE_SELECT |
284 | #ifndef EV_USE_SELECT |
152 | # define EV_USE_SELECT 1 |
285 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
153 | #endif |
286 | #endif |
154 | |
287 | |
155 | #ifndef EV_USE_POLL |
288 | #ifndef EV_USE_POLL |
156 | # ifdef _WIN32 |
289 | # ifdef _WIN32 |
157 | # define EV_USE_POLL 0 |
290 | # define EV_USE_POLL 0 |
158 | # else |
291 | # else |
159 | # define EV_USE_POLL 1 |
292 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
160 | # endif |
293 | # endif |
161 | #endif |
294 | #endif |
162 | |
295 | |
163 | #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 |
164 | # define EV_USE_EPOLL 0 |
300 | # define EV_USE_EPOLL 0 |
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301 | # endif |
165 | #endif |
302 | #endif |
166 | |
303 | |
167 | #ifndef EV_USE_KQUEUE |
304 | #ifndef EV_USE_KQUEUE |
168 | # define EV_USE_KQUEUE 0 |
305 | # define EV_USE_KQUEUE 0 |
169 | #endif |
306 | #endif |
… | |
… | |
171 | #ifndef EV_USE_PORT |
308 | #ifndef EV_USE_PORT |
172 | # define EV_USE_PORT 0 |
309 | # define EV_USE_PORT 0 |
173 | #endif |
310 | #endif |
174 | |
311 | |
175 | #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 |
176 | # define EV_USE_INOTIFY 0 |
316 | # define EV_USE_INOTIFY 0 |
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317 | # endif |
177 | #endif |
318 | #endif |
178 | |
319 | |
179 | #ifndef EV_PID_HASHSIZE |
320 | #ifndef EV_PID_HASHSIZE |
180 | # if EV_MINIMAL |
321 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
181 | # 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 |
182 | # else |
331 | # else |
183 | # define EV_PID_HASHSIZE 16 |
332 | # define EV_USE_EVENTFD 0 |
184 | # endif |
333 | # endif |
185 | #endif |
334 | #endif |
186 | |
335 | |
187 | #ifndef EV_INOTIFY_HASHSIZE |
336 | #ifndef EV_USE_SIGNALFD |
188 | # if EV_MINIMAL |
337 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
189 | # define EV_INOTIFY_HASHSIZE 1 |
338 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
190 | # else |
339 | # else |
191 | # define EV_INOTIFY_HASHSIZE 16 |
340 | # define EV_USE_SIGNALFD 0 |
192 | # endif |
341 | # endif |
193 | #endif |
342 | #endif |
194 | |
343 | |
195 | /**/ |
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 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
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363 | /* which makes programs even slower. might work on other unices, too. */ |
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364 | #if EV_USE_CLOCK_SYSCALL |
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365 | # include <sys/syscall.h> |
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366 | # ifdef SYS_clock_gettime |
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367 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
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368 | # undef EV_USE_MONOTONIC |
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|
369 | # define EV_USE_MONOTONIC 1 |
|
|
370 | # else |
|
|
371 | # undef EV_USE_CLOCK_SYSCALL |
|
|
372 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
373 | # endif |
|
|
374 | #endif |
|
|
375 | |
|
|
376 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
|
|
377 | |
|
|
378 | #ifdef _AIX |
|
|
379 | /* AIX has a completely broken poll.h header */ |
|
|
380 | # undef EV_USE_POLL |
|
|
381 | # define EV_USE_POLL 0 |
|
|
382 | #endif |
196 | |
383 | |
197 | #ifndef CLOCK_MONOTONIC |
384 | #ifndef CLOCK_MONOTONIC |
198 | # undef EV_USE_MONOTONIC |
385 | # undef EV_USE_MONOTONIC |
199 | # define EV_USE_MONOTONIC 0 |
386 | # define EV_USE_MONOTONIC 0 |
200 | #endif |
387 | #endif |
… | |
… | |
202 | #ifndef CLOCK_REALTIME |
389 | #ifndef CLOCK_REALTIME |
203 | # undef EV_USE_REALTIME |
390 | # undef EV_USE_REALTIME |
204 | # define EV_USE_REALTIME 0 |
391 | # define EV_USE_REALTIME 0 |
205 | #endif |
392 | #endif |
206 | |
393 | |
207 | #if EV_SELECT_IS_WINSOCKET |
|
|
208 | # include <winsock.h> |
|
|
209 | #endif |
|
|
210 | |
|
|
211 | #if !EV_STAT_ENABLE |
394 | #if !EV_STAT_ENABLE |
|
|
395 | # undef EV_USE_INOTIFY |
212 | # define EV_USE_INOTIFY 0 |
396 | # define EV_USE_INOTIFY 0 |
213 | #endif |
397 | #endif |
214 | |
398 | |
|
|
399 | #if !EV_USE_NANOSLEEP |
|
|
400 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
|
|
401 | # if !defined _WIN32 && !defined __hpux |
|
|
402 | # include <sys/select.h> |
|
|
403 | # endif |
|
|
404 | #endif |
|
|
405 | |
215 | #if EV_USE_INOTIFY |
406 | #if EV_USE_INOTIFY |
|
|
407 | # include <sys/statfs.h> |
216 | # include <sys/inotify.h> |
408 | # include <sys/inotify.h> |
|
|
409 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
|
|
410 | # ifndef IN_DONT_FOLLOW |
|
|
411 | # undef EV_USE_INOTIFY |
|
|
412 | # define EV_USE_INOTIFY 0 |
|
|
413 | # endif |
|
|
414 | #endif |
|
|
415 | |
|
|
416 | #if EV_USE_EVENTFD |
|
|
417 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
418 | # include <stdint.h> |
|
|
419 | # ifndef EFD_NONBLOCK |
|
|
420 | # define EFD_NONBLOCK O_NONBLOCK |
|
|
421 | # endif |
|
|
422 | # ifndef EFD_CLOEXEC |
|
|
423 | # ifdef O_CLOEXEC |
|
|
424 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
425 | # else |
|
|
426 | # define EFD_CLOEXEC 02000000 |
|
|
427 | # endif |
|
|
428 | # endif |
|
|
429 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
|
|
430 | #endif |
|
|
431 | |
|
|
432 | #if EV_USE_SIGNALFD |
|
|
433 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
434 | # include <stdint.h> |
|
|
435 | # ifndef SFD_NONBLOCK |
|
|
436 | # define SFD_NONBLOCK O_NONBLOCK |
|
|
437 | # endif |
|
|
438 | # ifndef SFD_CLOEXEC |
|
|
439 | # ifdef O_CLOEXEC |
|
|
440 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
441 | # else |
|
|
442 | # define SFD_CLOEXEC 02000000 |
|
|
443 | # endif |
|
|
444 | # endif |
|
|
445 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
|
|
446 | |
|
|
447 | struct signalfd_siginfo |
|
|
448 | { |
|
|
449 | uint32_t ssi_signo; |
|
|
450 | char pad[128 - sizeof (uint32_t)]; |
|
|
451 | }; |
217 | #endif |
452 | #endif |
218 | |
453 | |
219 | /**/ |
454 | /**/ |
|
|
455 | |
|
|
456 | #if EV_VERIFY >= 3 |
|
|
457 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
|
|
458 | #else |
|
|
459 | # define EV_FREQUENT_CHECK do { } while (0) |
|
|
460 | #endif |
|
|
461 | |
|
|
462 | /* |
|
|
463 | * This is used to work around floating point rounding problems. |
|
|
464 | * This value is good at least till the year 4000. |
|
|
465 | */ |
|
|
466 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
|
|
467 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
220 | |
468 | |
221 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
469 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
222 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
470 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
223 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */ |
|
|
224 | |
471 | |
|
|
472 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
|
|
473 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
|
|
474 | |
|
|
475 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
|
|
476 | /* ECB.H BEGIN */ |
|
|
477 | /* |
|
|
478 | * libecb - http://software.schmorp.de/pkg/libecb |
|
|
479 | * |
|
|
480 | * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> |
|
|
481 | * Copyright (©) 2011 Emanuele Giaquinta |
|
|
482 | * All rights reserved. |
|
|
483 | * |
|
|
484 | * Redistribution and use in source and binary forms, with or without modifica- |
|
|
485 | * tion, are permitted provided that the following conditions are met: |
|
|
486 | * |
|
|
487 | * 1. Redistributions of source code must retain the above copyright notice, |
|
|
488 | * this list of conditions and the following disclaimer. |
|
|
489 | * |
|
|
490 | * 2. Redistributions in binary form must reproduce the above copyright |
|
|
491 | * notice, this list of conditions and the following disclaimer in the |
|
|
492 | * documentation and/or other materials provided with the distribution. |
|
|
493 | * |
|
|
494 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
|
|
495 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
|
|
496 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
|
|
497 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
|
|
498 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
|
|
499 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
|
|
500 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
|
|
501 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
|
|
502 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
|
|
503 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
|
|
504 | */ |
|
|
505 | |
|
|
506 | #ifndef ECB_H |
|
|
507 | #define ECB_H |
|
|
508 | |
|
|
509 | /* 16 bits major, 16 bits minor */ |
|
|
510 | #define ECB_VERSION 0x00010001 |
|
|
511 | |
|
|
512 | #ifdef _WIN32 |
|
|
513 | typedef signed char int8_t; |
|
|
514 | typedef unsigned char uint8_t; |
|
|
515 | typedef signed short int16_t; |
|
|
516 | typedef unsigned short uint16_t; |
|
|
517 | typedef signed int int32_t; |
|
|
518 | typedef unsigned int uint32_t; |
225 | #if __GNUC__ >= 3 |
519 | #if __GNUC__ |
226 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
520 | typedef signed long long int64_t; |
227 | # define inline_size static inline /* inline for codesize */ |
521 | typedef unsigned long long uint64_t; |
228 | # if EV_MINIMAL |
522 | #else /* _MSC_VER || __BORLANDC__ */ |
229 | # define noinline __attribute__ ((noinline)) |
523 | typedef signed __int64 int64_t; |
230 | # define inline_speed static noinline |
524 | typedef unsigned __int64 uint64_t; |
231 | # else |
|
|
232 | # define noinline |
|
|
233 | # define inline_speed static inline |
|
|
234 | # endif |
525 | #endif |
|
|
526 | #ifdef _WIN64 |
|
|
527 | #define ECB_PTRSIZE 8 |
|
|
528 | typedef uint64_t uintptr_t; |
|
|
529 | typedef int64_t intptr_t; |
|
|
530 | #else |
|
|
531 | #define ECB_PTRSIZE 4 |
|
|
532 | typedef uint32_t uintptr_t; |
|
|
533 | typedef int32_t intptr_t; |
|
|
534 | #endif |
|
|
535 | typedef intptr_t ptrdiff_t; |
235 | #else |
536 | #else |
|
|
537 | #include <inttypes.h> |
|
|
538 | #if UINTMAX_MAX > 0xffffffffU |
|
|
539 | #define ECB_PTRSIZE 8 |
|
|
540 | #else |
|
|
541 | #define ECB_PTRSIZE 4 |
|
|
542 | #endif |
|
|
543 | #endif |
|
|
544 | |
|
|
545 | /* many compilers define _GNUC_ to some versions but then only implement |
|
|
546 | * what their idiot authors think are the "more important" extensions, |
|
|
547 | * causing enormous grief in return for some better fake benchmark numbers. |
|
|
548 | * or so. |
|
|
549 | * we try to detect these and simply assume they are not gcc - if they have |
|
|
550 | * an issue with that they should have done it right in the first place. |
|
|
551 | */ |
|
|
552 | #ifndef ECB_GCC_VERSION |
|
|
553 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
|
|
554 | #define ECB_GCC_VERSION(major,minor) 0 |
|
|
555 | #else |
|
|
556 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
|
|
557 | #endif |
|
|
558 | #endif |
|
|
559 | |
|
|
560 | #define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ |
|
|
561 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
|
|
562 | #define ECB_C11 (__STDC_VERSION__ >= 201112L) |
|
|
563 | #define ECB_CPP (__cplusplus+0) |
|
|
564 | #define ECB_CPP98 (__cplusplus >= 199711L) |
|
|
565 | #define ECB_CPP11 (__cplusplus >= 201103L) |
|
|
566 | |
|
|
567 | /*****************************************************************************/ |
|
|
568 | |
|
|
569 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
|
|
570 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
|
|
571 | |
|
|
572 | #if ECB_NO_THREADS |
|
|
573 | #define ECB_NO_SMP 1 |
|
|
574 | #endif |
|
|
575 | |
|
|
576 | #if ECB_NO_SMP |
|
|
577 | #define ECB_MEMORY_FENCE do { } while (0) |
|
|
578 | #endif |
|
|
579 | |
|
|
580 | #ifndef ECB_MEMORY_FENCE |
|
|
581 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
582 | #if __i386 || __i386__ |
|
|
583 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
|
|
584 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
585 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
586 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
|
|
587 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
|
|
588 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
589 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
590 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
|
|
591 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
592 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
|
|
593 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
|
|
594 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
|
|
595 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
|
|
596 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
|
|
597 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
|
|
598 | #elif __sparc || __sparc__ |
|
|
599 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
|
|
600 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
|
|
601 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
|
|
602 | #elif defined __s390__ || defined __s390x__ |
|
|
603 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
|
|
604 | #elif defined __mips__ |
|
|
605 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
606 | #elif defined __alpha__ |
|
|
607 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
|
|
608 | #elif defined __hppa__ |
|
|
609 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
610 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
611 | #elif defined __ia64__ |
|
|
612 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
|
|
613 | #endif |
|
|
614 | #endif |
|
|
615 | #endif |
|
|
616 | |
|
|
617 | #ifndef ECB_MEMORY_FENCE |
|
|
618 | #if ECB_GCC_VERSION(4,7) |
|
|
619 | /* see comment below about the C11 memory model. in short - avoid */ |
|
|
620 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
621 | #elif defined __clang && __has_feature (cxx_atomic) |
|
|
622 | /* see above */ |
|
|
623 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
624 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
|
|
625 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
626 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
627 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
628 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
629 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
630 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
631 | #elif defined _WIN32 |
|
|
632 | #include <WinNT.h> |
|
|
633 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
634 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
635 | #include <mbarrier.h> |
|
|
636 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
|
|
637 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
|
|
638 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
|
|
639 | #elif __xlC__ |
|
|
640 | #define ECB_MEMORY_FENCE __sync () |
|
|
641 | #endif |
|
|
642 | #endif |
|
|
643 | |
|
|
644 | #ifndef ECB_MEMORY_FENCE |
|
|
645 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
|
|
646 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
|
|
647 | /* not just C11 atomics and atomic accesses */ |
|
|
648 | #include <stdatomic.h> |
|
|
649 | /* unfortunately, the C11 memory model seems to be very limited, and unable to express */ |
|
|
650 | /* simple barrier semantics. That means we need to take out thor's hammer. */ |
|
|
651 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
652 | #endif |
|
|
653 | #endif |
|
|
654 | |
|
|
655 | #ifndef ECB_MEMORY_FENCE |
|
|
656 | #if !ECB_AVOID_PTHREADS |
|
|
657 | /* |
|
|
658 | * if you get undefined symbol references to pthread_mutex_lock, |
|
|
659 | * or failure to find pthread.h, then you should implement |
|
|
660 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
|
661 | * OR provide pthread.h and link against the posix thread library |
|
|
662 | * of your system. |
|
|
663 | */ |
|
|
664 | #include <pthread.h> |
|
|
665 | #define ECB_NEEDS_PTHREADS 1 |
|
|
666 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
|
|
667 | |
|
|
668 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
669 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
670 | #endif |
|
|
671 | #endif |
|
|
672 | |
|
|
673 | #if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE |
|
|
674 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
675 | #endif |
|
|
676 | |
|
|
677 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
|
|
678 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
679 | #endif |
|
|
680 | |
|
|
681 | /*****************************************************************************/ |
|
|
682 | |
|
|
683 | #if __cplusplus |
|
|
684 | #define ecb_inline static inline |
|
|
685 | #elif ECB_GCC_VERSION(2,5) |
|
|
686 | #define ecb_inline static __inline__ |
|
|
687 | #elif ECB_C99 |
|
|
688 | #define ecb_inline static inline |
|
|
689 | #else |
|
|
690 | #define ecb_inline static |
|
|
691 | #endif |
|
|
692 | |
|
|
693 | #if ECB_GCC_VERSION(3,3) |
|
|
694 | #define ecb_restrict __restrict__ |
|
|
695 | #elif ECB_C99 |
|
|
696 | #define ecb_restrict restrict |
|
|
697 | #else |
|
|
698 | #define ecb_restrict |
|
|
699 | #endif |
|
|
700 | |
|
|
701 | typedef int ecb_bool; |
|
|
702 | |
|
|
703 | #define ECB_CONCAT_(a, b) a ## b |
|
|
704 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
705 | #define ECB_STRINGIFY_(a) # a |
|
|
706 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
707 | |
|
|
708 | #define ecb_function_ ecb_inline |
|
|
709 | |
|
|
710 | #if ECB_GCC_VERSION(3,1) |
|
|
711 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
|
|
712 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
713 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
714 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
715 | #else |
|
|
716 | #define ecb_attribute(attrlist) |
|
|
717 | #define ecb_is_constant(expr) 0 |
236 | # define expect(expr,value) (expr) |
718 | #define ecb_expect(expr,value) (expr) |
237 | # define inline_speed static |
719 | #define ecb_prefetch(addr,rw,locality) |
238 | # define inline_size static |
|
|
239 | # define noinline |
|
|
240 | #endif |
720 | #endif |
241 | |
721 | |
|
|
722 | /* no emulation for ecb_decltype */ |
|
|
723 | #if ECB_GCC_VERSION(4,5) |
|
|
724 | #define ecb_decltype(x) __decltype(x) |
|
|
725 | #elif ECB_GCC_VERSION(3,0) |
|
|
726 | #define ecb_decltype(x) __typeof(x) |
|
|
727 | #endif |
|
|
728 | |
|
|
729 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
730 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
731 | #define ecb_const ecb_attribute ((__const__)) |
|
|
732 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
733 | |
|
|
734 | #if ECB_C11 |
|
|
735 | #define ecb_noreturn _Noreturn |
|
|
736 | #else |
|
|
737 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
738 | #endif |
|
|
739 | |
|
|
740 | #if ECB_GCC_VERSION(4,3) |
|
|
741 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
742 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
743 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
744 | #else |
|
|
745 | #define ecb_artificial |
|
|
746 | #define ecb_hot |
|
|
747 | #define ecb_cold |
|
|
748 | #endif |
|
|
749 | |
|
|
750 | /* put around conditional expressions if you are very sure that the */ |
|
|
751 | /* expression is mostly true or mostly false. note that these return */ |
|
|
752 | /* booleans, not the expression. */ |
242 | #define expect_false(expr) expect ((expr) != 0, 0) |
753 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
243 | #define expect_true(expr) expect ((expr) != 0, 1) |
754 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
755 | /* for compatibility to the rest of the world */ |
|
|
756 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
757 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
244 | |
758 | |
|
|
759 | /* count trailing zero bits and count # of one bits */ |
|
|
760 | #if ECB_GCC_VERSION(3,4) |
|
|
761 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
762 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
|
|
763 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
764 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
765 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
766 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
767 | /* no popcountll */ |
|
|
768 | #else |
|
|
769 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
|
|
770 | ecb_function_ int |
|
|
771 | ecb_ctz32 (uint32_t x) |
|
|
772 | { |
|
|
773 | int r = 0; |
|
|
774 | |
|
|
775 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
776 | |
|
|
777 | #if ECB_branchless_on_i386 |
|
|
778 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
779 | r += !!(x & 0xcccccccc) << 1; |
|
|
780 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
781 | r += !!(x & 0xff00ff00) << 3; |
|
|
782 | r += !!(x & 0xffff0000) << 4; |
|
|
783 | #else |
|
|
784 | if (x & 0xaaaaaaaa) r += 1; |
|
|
785 | if (x & 0xcccccccc) r += 2; |
|
|
786 | if (x & 0xf0f0f0f0) r += 4; |
|
|
787 | if (x & 0xff00ff00) r += 8; |
|
|
788 | if (x & 0xffff0000) r += 16; |
|
|
789 | #endif |
|
|
790 | |
|
|
791 | return r; |
|
|
792 | } |
|
|
793 | |
|
|
794 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
|
|
795 | ecb_function_ int |
|
|
796 | ecb_ctz64 (uint64_t x) |
|
|
797 | { |
|
|
798 | int shift = x & 0xffffffffU ? 0 : 32; |
|
|
799 | return ecb_ctz32 (x >> shift) + shift; |
|
|
800 | } |
|
|
801 | |
|
|
802 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
|
|
803 | ecb_function_ int |
|
|
804 | ecb_popcount32 (uint32_t x) |
|
|
805 | { |
|
|
806 | x -= (x >> 1) & 0x55555555; |
|
|
807 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
808 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
809 | x *= 0x01010101; |
|
|
810 | |
|
|
811 | return x >> 24; |
|
|
812 | } |
|
|
813 | |
|
|
814 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
|
|
815 | ecb_function_ int ecb_ld32 (uint32_t x) |
|
|
816 | { |
|
|
817 | int r = 0; |
|
|
818 | |
|
|
819 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
820 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
821 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
822 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
823 | if (x >> 1) { r += 1; } |
|
|
824 | |
|
|
825 | return r; |
|
|
826 | } |
|
|
827 | |
|
|
828 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
|
|
829 | ecb_function_ int ecb_ld64 (uint64_t x) |
|
|
830 | { |
|
|
831 | int r = 0; |
|
|
832 | |
|
|
833 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
834 | |
|
|
835 | return r + ecb_ld32 (x); |
|
|
836 | } |
|
|
837 | #endif |
|
|
838 | |
|
|
839 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; |
|
|
840 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
|
|
841 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; |
|
|
842 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
|
|
843 | |
|
|
844 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
|
|
845 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
|
|
846 | { |
|
|
847 | return ( (x * 0x0802U & 0x22110U) |
|
|
848 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
|
|
849 | } |
|
|
850 | |
|
|
851 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
|
|
852 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
|
|
853 | { |
|
|
854 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
|
|
855 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
|
|
856 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
|
|
857 | x = ( x >> 8 ) | ( x << 8); |
|
|
858 | |
|
|
859 | return x; |
|
|
860 | } |
|
|
861 | |
|
|
862 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
|
|
863 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
|
|
864 | { |
|
|
865 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
|
|
866 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
|
|
867 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
|
|
868 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
|
|
869 | x = ( x >> 16 ) | ( x << 16); |
|
|
870 | |
|
|
871 | return x; |
|
|
872 | } |
|
|
873 | |
|
|
874 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
875 | /* so for this version we are lazy */ |
|
|
876 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
|
|
877 | ecb_function_ int |
|
|
878 | ecb_popcount64 (uint64_t x) |
|
|
879 | { |
|
|
880 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
881 | } |
|
|
882 | |
|
|
883 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
|
|
884 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
|
|
885 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
|
|
886 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
|
|
887 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
|
|
888 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
|
|
889 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
|
|
890 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
|
|
891 | |
|
|
892 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
|
|
893 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
|
|
894 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
|
|
895 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
|
|
896 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
|
|
897 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
|
|
898 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
|
|
899 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
|
|
900 | |
|
|
901 | #if ECB_GCC_VERSION(4,3) |
|
|
902 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
903 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
|
|
904 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
905 | #else |
|
|
906 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
|
|
907 | ecb_function_ uint16_t |
|
|
908 | ecb_bswap16 (uint16_t x) |
|
|
909 | { |
|
|
910 | return ecb_rotl16 (x, 8); |
|
|
911 | } |
|
|
912 | |
|
|
913 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
|
|
914 | ecb_function_ uint32_t |
|
|
915 | ecb_bswap32 (uint32_t x) |
|
|
916 | { |
|
|
917 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
|
|
918 | } |
|
|
919 | |
|
|
920 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
|
|
921 | ecb_function_ uint64_t |
|
|
922 | ecb_bswap64 (uint64_t x) |
|
|
923 | { |
|
|
924 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
|
|
925 | } |
|
|
926 | #endif |
|
|
927 | |
|
|
928 | #if ECB_GCC_VERSION(4,5) |
|
|
929 | #define ecb_unreachable() __builtin_unreachable () |
|
|
930 | #else |
|
|
931 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
932 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
|
|
933 | ecb_inline void ecb_unreachable (void) { } |
|
|
934 | #endif |
|
|
935 | |
|
|
936 | /* try to tell the compiler that some condition is definitely true */ |
|
|
937 | #define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) |
|
|
938 | |
|
|
939 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
|
|
940 | ecb_inline unsigned char |
|
|
941 | ecb_byteorder_helper (void) |
|
|
942 | { |
|
|
943 | const uint32_t u = 0x11223344; |
|
|
944 | return *(unsigned char *)&u; |
|
|
945 | } |
|
|
946 | |
|
|
947 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
|
|
948 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
|
|
949 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
|
|
950 | ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
|
|
951 | |
|
|
952 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
953 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
954 | #else |
|
|
955 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
956 | #endif |
|
|
957 | |
|
|
958 | #if __cplusplus |
|
|
959 | template<typename T> |
|
|
960 | static inline T ecb_div_rd (T val, T div) |
|
|
961 | { |
|
|
962 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
|
|
963 | } |
|
|
964 | template<typename T> |
|
|
965 | static inline T ecb_div_ru (T val, T div) |
|
|
966 | { |
|
|
967 | return val < 0 ? - ((-val ) / div) : (val + div - 1) / div; |
|
|
968 | } |
|
|
969 | #else |
|
|
970 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
|
|
971 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
|
|
972 | #endif |
|
|
973 | |
|
|
974 | #if ecb_cplusplus_does_not_suck |
|
|
975 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
976 | template<typename T, int N> |
|
|
977 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
978 | { |
|
|
979 | return N; |
|
|
980 | } |
|
|
981 | #else |
|
|
982 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
983 | #endif |
|
|
984 | |
|
|
985 | #endif |
|
|
986 | |
|
|
987 | /* ECB.H END */ |
|
|
988 | |
|
|
989 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
990 | /* if your architecture doesn't need memory fences, e.g. because it is |
|
|
991 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
|
|
992 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
|
|
993 | * libev, in which cases the memory fences become nops. |
|
|
994 | * alternatively, you can remove this #error and link against libpthread, |
|
|
995 | * which will then provide the memory fences. |
|
|
996 | */ |
|
|
997 | # error "memory fences not defined for your architecture, please report" |
|
|
998 | #endif |
|
|
999 | |
|
|
1000 | #ifndef ECB_MEMORY_FENCE |
|
|
1001 | # define ECB_MEMORY_FENCE do { } while (0) |
|
|
1002 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
1003 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
1004 | #endif |
|
|
1005 | |
|
|
1006 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
1007 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
1008 | #define noinline ecb_noinline |
|
|
1009 | |
|
|
1010 | #define inline_size ecb_inline |
|
|
1011 | |
|
|
1012 | #if EV_FEATURE_CODE |
|
|
1013 | # define inline_speed ecb_inline |
|
|
1014 | #else |
|
|
1015 | # define inline_speed static noinline |
|
|
1016 | #endif |
|
|
1017 | |
245 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1018 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
1019 | |
|
|
1020 | #if EV_MINPRI == EV_MAXPRI |
|
|
1021 | # define ABSPRI(w) (((W)w), 0) |
|
|
1022 | #else |
246 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
1023 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
1024 | #endif |
247 | |
1025 | |
248 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
1026 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
249 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
1027 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
250 | |
1028 | |
251 | typedef ev_watcher *W; |
1029 | typedef ev_watcher *W; |
252 | typedef ev_watcher_list *WL; |
1030 | typedef ev_watcher_list *WL; |
253 | typedef ev_watcher_time *WT; |
1031 | typedef ev_watcher_time *WT; |
254 | |
1032 | |
|
|
1033 | #define ev_active(w) ((W)(w))->active |
|
|
1034 | #define ev_at(w) ((WT)(w))->at |
|
|
1035 | |
|
|
1036 | #if EV_USE_REALTIME |
|
|
1037 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
1038 | /* giving it a reasonably high chance of working on typical architectures */ |
|
|
1039 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
|
|
1040 | #endif |
|
|
1041 | |
|
|
1042 | #if EV_USE_MONOTONIC |
255 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
1043 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
1044 | #endif |
|
|
1045 | |
|
|
1046 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
1047 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
1048 | #endif |
|
|
1049 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
1050 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
1051 | #endif |
|
|
1052 | #ifndef EV_WIN32_CLOSE_FD |
|
|
1053 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
|
|
1054 | #endif |
256 | |
1055 | |
257 | #ifdef _WIN32 |
1056 | #ifdef _WIN32 |
258 | # include "ev_win32.c" |
1057 | # include "ev_win32.c" |
259 | #endif |
1058 | #endif |
260 | |
1059 | |
261 | /*****************************************************************************/ |
1060 | /*****************************************************************************/ |
262 | |
1061 | |
|
|
1062 | /* define a suitable floor function (only used by periodics atm) */ |
|
|
1063 | |
|
|
1064 | #if EV_USE_FLOOR |
|
|
1065 | # include <math.h> |
|
|
1066 | # define ev_floor(v) floor (v) |
|
|
1067 | #else |
|
|
1068 | |
|
|
1069 | #include <float.h> |
|
|
1070 | |
|
|
1071 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1072 | static ev_tstamp noinline |
|
|
1073 | ev_floor (ev_tstamp v) |
|
|
1074 | { |
|
|
1075 | /* the choice of shift factor is not terribly important */ |
|
|
1076 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
|
|
1077 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
|
|
1078 | #else |
|
|
1079 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
|
|
1080 | #endif |
|
|
1081 | |
|
|
1082 | /* argument too large for an unsigned long? */ |
|
|
1083 | if (expect_false (v >= shift)) |
|
|
1084 | { |
|
|
1085 | ev_tstamp f; |
|
|
1086 | |
|
|
1087 | if (v == v - 1.) |
|
|
1088 | return v; /* very large number */ |
|
|
1089 | |
|
|
1090 | f = shift * ev_floor (v * (1. / shift)); |
|
|
1091 | return f + ev_floor (v - f); |
|
|
1092 | } |
|
|
1093 | |
|
|
1094 | /* special treatment for negative args? */ |
|
|
1095 | if (expect_false (v < 0.)) |
|
|
1096 | { |
|
|
1097 | ev_tstamp f = -ev_floor (-v); |
|
|
1098 | |
|
|
1099 | return f - (f == v ? 0 : 1); |
|
|
1100 | } |
|
|
1101 | |
|
|
1102 | /* fits into an unsigned long */ |
|
|
1103 | return (unsigned long)v; |
|
|
1104 | } |
|
|
1105 | |
|
|
1106 | #endif |
|
|
1107 | |
|
|
1108 | /*****************************************************************************/ |
|
|
1109 | |
|
|
1110 | #ifdef __linux |
|
|
1111 | # include <sys/utsname.h> |
|
|
1112 | #endif |
|
|
1113 | |
|
|
1114 | static unsigned int noinline ecb_cold |
|
|
1115 | ev_linux_version (void) |
|
|
1116 | { |
|
|
1117 | #ifdef __linux |
|
|
1118 | unsigned int v = 0; |
|
|
1119 | struct utsname buf; |
|
|
1120 | int i; |
|
|
1121 | char *p = buf.release; |
|
|
1122 | |
|
|
1123 | if (uname (&buf)) |
|
|
1124 | return 0; |
|
|
1125 | |
|
|
1126 | for (i = 3+1; --i; ) |
|
|
1127 | { |
|
|
1128 | unsigned int c = 0; |
|
|
1129 | |
|
|
1130 | for (;;) |
|
|
1131 | { |
|
|
1132 | if (*p >= '0' && *p <= '9') |
|
|
1133 | c = c * 10 + *p++ - '0'; |
|
|
1134 | else |
|
|
1135 | { |
|
|
1136 | p += *p == '.'; |
|
|
1137 | break; |
|
|
1138 | } |
|
|
1139 | } |
|
|
1140 | |
|
|
1141 | v = (v << 8) | c; |
|
|
1142 | } |
|
|
1143 | |
|
|
1144 | return v; |
|
|
1145 | #else |
|
|
1146 | return 0; |
|
|
1147 | #endif |
|
|
1148 | } |
|
|
1149 | |
|
|
1150 | /*****************************************************************************/ |
|
|
1151 | |
|
|
1152 | #if EV_AVOID_STDIO |
|
|
1153 | static void noinline ecb_cold |
|
|
1154 | ev_printerr (const char *msg) |
|
|
1155 | { |
|
|
1156 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
1157 | } |
|
|
1158 | #endif |
|
|
1159 | |
263 | static void (*syserr_cb)(const char *msg); |
1160 | static void (*syserr_cb)(const char *msg) EV_THROW; |
264 | |
1161 | |
265 | void |
1162 | void ecb_cold |
266 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1163 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
267 | { |
1164 | { |
268 | syserr_cb = cb; |
1165 | syserr_cb = cb; |
269 | } |
1166 | } |
270 | |
1167 | |
271 | static void noinline |
1168 | static void noinline ecb_cold |
272 | syserr (const char *msg) |
1169 | ev_syserr (const char *msg) |
273 | { |
1170 | { |
274 | if (!msg) |
1171 | if (!msg) |
275 | msg = "(libev) system error"; |
1172 | msg = "(libev) system error"; |
276 | |
1173 | |
277 | if (syserr_cb) |
1174 | if (syserr_cb) |
278 | syserr_cb (msg); |
1175 | syserr_cb (msg); |
279 | else |
1176 | else |
280 | { |
1177 | { |
|
|
1178 | #if EV_AVOID_STDIO |
|
|
1179 | ev_printerr (msg); |
|
|
1180 | ev_printerr (": "); |
|
|
1181 | ev_printerr (strerror (errno)); |
|
|
1182 | ev_printerr ("\n"); |
|
|
1183 | #else |
281 | perror (msg); |
1184 | perror (msg); |
|
|
1185 | #endif |
282 | abort (); |
1186 | abort (); |
283 | } |
1187 | } |
284 | } |
1188 | } |
285 | |
1189 | |
|
|
1190 | static void * |
|
|
1191 | ev_realloc_emul (void *ptr, long size) EV_THROW |
|
|
1192 | { |
|
|
1193 | #if __GLIBC__ |
|
|
1194 | return realloc (ptr, size); |
|
|
1195 | #else |
|
|
1196 | /* some systems, notably openbsd and darwin, fail to properly |
|
|
1197 | * implement realloc (x, 0) (as required by both ansi c-89 and |
|
|
1198 | * the single unix specification, so work around them here. |
|
|
1199 | */ |
|
|
1200 | |
|
|
1201 | if (size) |
|
|
1202 | return realloc (ptr, size); |
|
|
1203 | |
|
|
1204 | free (ptr); |
|
|
1205 | return 0; |
|
|
1206 | #endif |
|
|
1207 | } |
|
|
1208 | |
286 | static void *(*alloc)(void *ptr, long size); |
1209 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
287 | |
1210 | |
288 | void |
1211 | void ecb_cold |
289 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1212 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
290 | { |
1213 | { |
291 | alloc = cb; |
1214 | alloc = cb; |
292 | } |
1215 | } |
293 | |
1216 | |
294 | inline_speed void * |
1217 | inline_speed void * |
295 | ev_realloc (void *ptr, long size) |
1218 | ev_realloc (void *ptr, long size) |
296 | { |
1219 | { |
297 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
1220 | ptr = alloc (ptr, size); |
298 | |
1221 | |
299 | if (!ptr && size) |
1222 | if (!ptr && size) |
300 | { |
1223 | { |
|
|
1224 | #if EV_AVOID_STDIO |
|
|
1225 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
|
|
1226 | #else |
301 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
1227 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
|
|
1228 | #endif |
302 | abort (); |
1229 | abort (); |
303 | } |
1230 | } |
304 | |
1231 | |
305 | return ptr; |
1232 | return ptr; |
306 | } |
1233 | } |
… | |
… | |
308 | #define ev_malloc(size) ev_realloc (0, (size)) |
1235 | #define ev_malloc(size) ev_realloc (0, (size)) |
309 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
1236 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
310 | |
1237 | |
311 | /*****************************************************************************/ |
1238 | /*****************************************************************************/ |
312 | |
1239 | |
|
|
1240 | /* set in reify when reification needed */ |
|
|
1241 | #define EV_ANFD_REIFY 1 |
|
|
1242 | |
|
|
1243 | /* file descriptor info structure */ |
313 | typedef struct |
1244 | typedef struct |
314 | { |
1245 | { |
315 | WL head; |
1246 | WL head; |
316 | unsigned char events; |
1247 | unsigned char events; /* the events watched for */ |
|
|
1248 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
|
|
1249 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
317 | unsigned char reify; |
1250 | unsigned char unused; |
|
|
1251 | #if EV_USE_EPOLL |
|
|
1252 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
1253 | #endif |
318 | #if EV_SELECT_IS_WINSOCKET |
1254 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
319 | SOCKET handle; |
1255 | SOCKET handle; |
320 | #endif |
1256 | #endif |
|
|
1257 | #if EV_USE_IOCP |
|
|
1258 | OVERLAPPED or, ow; |
|
|
1259 | #endif |
321 | } ANFD; |
1260 | } ANFD; |
322 | |
1261 | |
|
|
1262 | /* stores the pending event set for a given watcher */ |
323 | typedef struct |
1263 | typedef struct |
324 | { |
1264 | { |
325 | W w; |
1265 | W w; |
326 | int events; |
1266 | int events; /* the pending event set for the given watcher */ |
327 | } ANPENDING; |
1267 | } ANPENDING; |
328 | |
1268 | |
329 | #if EV_USE_INOTIFY |
1269 | #if EV_USE_INOTIFY |
|
|
1270 | /* hash table entry per inotify-id */ |
330 | typedef struct |
1271 | typedef struct |
331 | { |
1272 | { |
332 | WL head; |
1273 | WL head; |
333 | } ANFS; |
1274 | } ANFS; |
|
|
1275 | #endif |
|
|
1276 | |
|
|
1277 | /* Heap Entry */ |
|
|
1278 | #if EV_HEAP_CACHE_AT |
|
|
1279 | /* a heap element */ |
|
|
1280 | typedef struct { |
|
|
1281 | ev_tstamp at; |
|
|
1282 | WT w; |
|
|
1283 | } ANHE; |
|
|
1284 | |
|
|
1285 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
|
|
1286 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
|
1287 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
1288 | #else |
|
|
1289 | /* a heap element */ |
|
|
1290 | typedef WT ANHE; |
|
|
1291 | |
|
|
1292 | #define ANHE_w(he) (he) |
|
|
1293 | #define ANHE_at(he) (he)->at |
|
|
1294 | #define ANHE_at_cache(he) |
334 | #endif |
1295 | #endif |
335 | |
1296 | |
336 | #if EV_MULTIPLICITY |
1297 | #if EV_MULTIPLICITY |
337 | |
1298 | |
338 | struct ev_loop |
1299 | struct ev_loop |
… | |
… | |
344 | #undef VAR |
1305 | #undef VAR |
345 | }; |
1306 | }; |
346 | #include "ev_wrap.h" |
1307 | #include "ev_wrap.h" |
347 | |
1308 | |
348 | static struct ev_loop default_loop_struct; |
1309 | static struct ev_loop default_loop_struct; |
349 | struct ev_loop *ev_default_loop_ptr; |
1310 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
350 | |
1311 | |
351 | #else |
1312 | #else |
352 | |
1313 | |
353 | ev_tstamp ev_rt_now; |
1314 | EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ |
354 | #define VAR(name,decl) static decl; |
1315 | #define VAR(name,decl) static decl; |
355 | #include "ev_vars.h" |
1316 | #include "ev_vars.h" |
356 | #undef VAR |
1317 | #undef VAR |
357 | |
1318 | |
358 | static int ev_default_loop_ptr; |
1319 | static int ev_default_loop_ptr; |
359 | |
1320 | |
360 | #endif |
1321 | #endif |
361 | |
1322 | |
|
|
1323 | #if EV_FEATURE_API |
|
|
1324 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
1325 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
1326 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
1327 | #else |
|
|
1328 | # define EV_RELEASE_CB (void)0 |
|
|
1329 | # define EV_ACQUIRE_CB (void)0 |
|
|
1330 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
1331 | #endif |
|
|
1332 | |
|
|
1333 | #define EVBREAK_RECURSE 0x80 |
|
|
1334 | |
362 | /*****************************************************************************/ |
1335 | /*****************************************************************************/ |
363 | |
1336 | |
|
|
1337 | #ifndef EV_HAVE_EV_TIME |
364 | ev_tstamp |
1338 | ev_tstamp |
365 | ev_time (void) |
1339 | ev_time (void) EV_THROW |
366 | { |
1340 | { |
367 | #if EV_USE_REALTIME |
1341 | #if EV_USE_REALTIME |
|
|
1342 | if (expect_true (have_realtime)) |
|
|
1343 | { |
368 | struct timespec ts; |
1344 | struct timespec ts; |
369 | clock_gettime (CLOCK_REALTIME, &ts); |
1345 | clock_gettime (CLOCK_REALTIME, &ts); |
370 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
1346 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
371 | #else |
1347 | } |
|
|
1348 | #endif |
|
|
1349 | |
372 | struct timeval tv; |
1350 | struct timeval tv; |
373 | gettimeofday (&tv, 0); |
1351 | gettimeofday (&tv, 0); |
374 | return tv.tv_sec + tv.tv_usec * 1e-6; |
1352 | return tv.tv_sec + tv.tv_usec * 1e-6; |
375 | #endif |
|
|
376 | } |
1353 | } |
|
|
1354 | #endif |
377 | |
1355 | |
378 | ev_tstamp inline_size |
1356 | inline_size ev_tstamp |
379 | get_clock (void) |
1357 | get_clock (void) |
380 | { |
1358 | { |
381 | #if EV_USE_MONOTONIC |
1359 | #if EV_USE_MONOTONIC |
382 | if (expect_true (have_monotonic)) |
1360 | if (expect_true (have_monotonic)) |
383 | { |
1361 | { |
… | |
… | |
390 | return ev_time (); |
1368 | return ev_time (); |
391 | } |
1369 | } |
392 | |
1370 | |
393 | #if EV_MULTIPLICITY |
1371 | #if EV_MULTIPLICITY |
394 | ev_tstamp |
1372 | ev_tstamp |
395 | ev_now (EV_P) |
1373 | ev_now (EV_P) EV_THROW |
396 | { |
1374 | { |
397 | return ev_rt_now; |
1375 | return ev_rt_now; |
398 | } |
1376 | } |
399 | #endif |
1377 | #endif |
400 | |
1378 | |
401 | int inline_size |
1379 | void |
|
|
1380 | ev_sleep (ev_tstamp delay) EV_THROW |
|
|
1381 | { |
|
|
1382 | if (delay > 0.) |
|
|
1383 | { |
|
|
1384 | #if EV_USE_NANOSLEEP |
|
|
1385 | struct timespec ts; |
|
|
1386 | |
|
|
1387 | EV_TS_SET (ts, delay); |
|
|
1388 | nanosleep (&ts, 0); |
|
|
1389 | #elif defined _WIN32 |
|
|
1390 | Sleep ((unsigned long)(delay * 1e3)); |
|
|
1391 | #else |
|
|
1392 | struct timeval tv; |
|
|
1393 | |
|
|
1394 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
|
|
1395 | /* something not guaranteed by newer posix versions, but guaranteed */ |
|
|
1396 | /* by older ones */ |
|
|
1397 | EV_TV_SET (tv, delay); |
|
|
1398 | select (0, 0, 0, 0, &tv); |
|
|
1399 | #endif |
|
|
1400 | } |
|
|
1401 | } |
|
|
1402 | |
|
|
1403 | /*****************************************************************************/ |
|
|
1404 | |
|
|
1405 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
|
|
1406 | |
|
|
1407 | /* find a suitable new size for the given array, */ |
|
|
1408 | /* hopefully by rounding to a nice-to-malloc size */ |
|
|
1409 | inline_size int |
402 | array_nextsize (int elem, int cur, int cnt) |
1410 | array_nextsize (int elem, int cur, int cnt) |
403 | { |
1411 | { |
404 | int ncur = cur + 1; |
1412 | int ncur = cur + 1; |
405 | |
1413 | |
406 | do |
1414 | do |
407 | ncur <<= 1; |
1415 | ncur <<= 1; |
408 | while (cnt > ncur); |
1416 | while (cnt > ncur); |
409 | |
1417 | |
410 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
1418 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
411 | if (elem * ncur > 4096) |
1419 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
412 | { |
1420 | { |
413 | ncur *= elem; |
1421 | ncur *= elem; |
414 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
1422 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
415 | ncur = ncur - sizeof (void *) * 4; |
1423 | ncur = ncur - sizeof (void *) * 4; |
416 | ncur /= elem; |
1424 | ncur /= elem; |
417 | } |
1425 | } |
418 | |
1426 | |
419 | return ncur; |
1427 | return ncur; |
420 | } |
1428 | } |
421 | |
1429 | |
422 | inline_speed void * |
1430 | static void * noinline ecb_cold |
423 | array_realloc (int elem, void *base, int *cur, int cnt) |
1431 | array_realloc (int elem, void *base, int *cur, int cnt) |
424 | { |
1432 | { |
425 | *cur = array_nextsize (elem, *cur, cnt); |
1433 | *cur = array_nextsize (elem, *cur, cnt); |
426 | return ev_realloc (base, elem * *cur); |
1434 | return ev_realloc (base, elem * *cur); |
427 | } |
1435 | } |
|
|
1436 | |
|
|
1437 | #define array_init_zero(base,count) \ |
|
|
1438 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
428 | |
1439 | |
429 | #define array_needsize(type,base,cur,cnt,init) \ |
1440 | #define array_needsize(type,base,cur,cnt,init) \ |
430 | if (expect_false ((cnt) > (cur))) \ |
1441 | if (expect_false ((cnt) > (cur))) \ |
431 | { \ |
1442 | { \ |
432 | int ocur_ = (cur); \ |
1443 | int ecb_unused ocur_ = (cur); \ |
433 | (base) = (type *)array_realloc \ |
1444 | (base) = (type *)array_realloc \ |
434 | (sizeof (type), (base), &(cur), (cnt)); \ |
1445 | (sizeof (type), (base), &(cur), (cnt)); \ |
435 | init ((base) + (ocur_), (cur) - ocur_); \ |
1446 | init ((base) + (ocur_), (cur) - ocur_); \ |
436 | } |
1447 | } |
437 | |
1448 | |
… | |
… | |
444 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
1455 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
445 | } |
1456 | } |
446 | #endif |
1457 | #endif |
447 | |
1458 | |
448 | #define array_free(stem, idx) \ |
1459 | #define array_free(stem, idx) \ |
449 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
1460 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
450 | |
1461 | |
451 | /*****************************************************************************/ |
1462 | /*****************************************************************************/ |
452 | |
1463 | |
|
|
1464 | /* dummy callback for pending events */ |
|
|
1465 | static void noinline |
|
|
1466 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
1467 | { |
|
|
1468 | } |
|
|
1469 | |
453 | void noinline |
1470 | void noinline |
454 | ev_feed_event (EV_P_ void *w, int revents) |
1471 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
455 | { |
1472 | { |
456 | W w_ = (W)w; |
1473 | W w_ = (W)w; |
|
|
1474 | int pri = ABSPRI (w_); |
457 | |
1475 | |
458 | if (expect_false (w_->pending)) |
1476 | if (expect_false (w_->pending)) |
|
|
1477 | pendings [pri][w_->pending - 1].events |= revents; |
|
|
1478 | else |
459 | { |
1479 | { |
|
|
1480 | w_->pending = ++pendingcnt [pri]; |
|
|
1481 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
|
|
1482 | pendings [pri][w_->pending - 1].w = w_; |
460 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
1483 | pendings [pri][w_->pending - 1].events = revents; |
461 | return; |
|
|
462 | } |
1484 | } |
463 | |
1485 | |
464 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
1486 | pendingpri = NUMPRI - 1; |
465 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2); |
|
|
466 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
|
|
467 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
|
|
468 | } |
1487 | } |
469 | |
1488 | |
470 | void inline_size |
1489 | inline_speed void |
|
|
1490 | feed_reverse (EV_P_ W w) |
|
|
1491 | { |
|
|
1492 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
1493 | rfeeds [rfeedcnt++] = w; |
|
|
1494 | } |
|
|
1495 | |
|
|
1496 | inline_size void |
|
|
1497 | feed_reverse_done (EV_P_ int revents) |
|
|
1498 | { |
|
|
1499 | do |
|
|
1500 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
1501 | while (rfeedcnt); |
|
|
1502 | } |
|
|
1503 | |
|
|
1504 | inline_speed void |
471 | queue_events (EV_P_ W *events, int eventcnt, int type) |
1505 | queue_events (EV_P_ W *events, int eventcnt, int type) |
472 | { |
1506 | { |
473 | int i; |
1507 | int i; |
474 | |
1508 | |
475 | for (i = 0; i < eventcnt; ++i) |
1509 | for (i = 0; i < eventcnt; ++i) |
476 | ev_feed_event (EV_A_ events [i], type); |
1510 | ev_feed_event (EV_A_ events [i], type); |
477 | } |
1511 | } |
478 | |
1512 | |
479 | /*****************************************************************************/ |
1513 | /*****************************************************************************/ |
480 | |
1514 | |
481 | void inline_size |
1515 | inline_speed void |
482 | anfds_init (ANFD *base, int count) |
|
|
483 | { |
|
|
484 | while (count--) |
|
|
485 | { |
|
|
486 | base->head = 0; |
|
|
487 | base->events = EV_NONE; |
|
|
488 | base->reify = 0; |
|
|
489 | |
|
|
490 | ++base; |
|
|
491 | } |
|
|
492 | } |
|
|
493 | |
|
|
494 | void inline_speed |
|
|
495 | fd_event (EV_P_ int fd, int revents) |
1516 | fd_event_nocheck (EV_P_ int fd, int revents) |
496 | { |
1517 | { |
497 | ANFD *anfd = anfds + fd; |
1518 | ANFD *anfd = anfds + fd; |
498 | ev_io *w; |
1519 | ev_io *w; |
499 | |
1520 | |
500 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1521 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
504 | if (ev) |
1525 | if (ev) |
505 | ev_feed_event (EV_A_ (W)w, ev); |
1526 | ev_feed_event (EV_A_ (W)w, ev); |
506 | } |
1527 | } |
507 | } |
1528 | } |
508 | |
1529 | |
|
|
1530 | /* do not submit kernel events for fds that have reify set */ |
|
|
1531 | /* because that means they changed while we were polling for new events */ |
|
|
1532 | inline_speed void |
|
|
1533 | fd_event (EV_P_ int fd, int revents) |
|
|
1534 | { |
|
|
1535 | ANFD *anfd = anfds + fd; |
|
|
1536 | |
|
|
1537 | if (expect_true (!anfd->reify)) |
|
|
1538 | fd_event_nocheck (EV_A_ fd, revents); |
|
|
1539 | } |
|
|
1540 | |
509 | void |
1541 | void |
510 | ev_feed_fd_event (EV_P_ int fd, int revents) |
1542 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW |
511 | { |
1543 | { |
|
|
1544 | if (fd >= 0 && fd < anfdmax) |
512 | fd_event (EV_A_ fd, revents); |
1545 | fd_event_nocheck (EV_A_ fd, revents); |
513 | } |
1546 | } |
514 | |
1547 | |
515 | void inline_size |
1548 | /* make sure the external fd watch events are in-sync */ |
|
|
1549 | /* with the kernel/libev internal state */ |
|
|
1550 | inline_size void |
516 | fd_reify (EV_P) |
1551 | fd_reify (EV_P) |
517 | { |
1552 | { |
518 | int i; |
1553 | int i; |
|
|
1554 | |
|
|
1555 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
1556 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1557 | { |
|
|
1558 | int fd = fdchanges [i]; |
|
|
1559 | ANFD *anfd = anfds + fd; |
|
|
1560 | |
|
|
1561 | if (anfd->reify & EV__IOFDSET && anfd->head) |
|
|
1562 | { |
|
|
1563 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
1564 | |
|
|
1565 | if (handle != anfd->handle) |
|
|
1566 | { |
|
|
1567 | unsigned long arg; |
|
|
1568 | |
|
|
1569 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0)); |
|
|
1570 | |
|
|
1571 | /* handle changed, but fd didn't - we need to do it in two steps */ |
|
|
1572 | backend_modify (EV_A_ fd, anfd->events, 0); |
|
|
1573 | anfd->events = 0; |
|
|
1574 | anfd->handle = handle; |
|
|
1575 | } |
|
|
1576 | } |
|
|
1577 | } |
|
|
1578 | #endif |
519 | |
1579 | |
520 | for (i = 0; i < fdchangecnt; ++i) |
1580 | for (i = 0; i < fdchangecnt; ++i) |
521 | { |
1581 | { |
522 | int fd = fdchanges [i]; |
1582 | int fd = fdchanges [i]; |
523 | ANFD *anfd = anfds + fd; |
1583 | ANFD *anfd = anfds + fd; |
524 | ev_io *w; |
1584 | ev_io *w; |
525 | |
1585 | |
526 | int events = 0; |
1586 | unsigned char o_events = anfd->events; |
|
|
1587 | unsigned char o_reify = anfd->reify; |
527 | |
1588 | |
528 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1589 | anfd->reify = 0; |
529 | events |= w->events; |
|
|
530 | |
1590 | |
531 | #if EV_SELECT_IS_WINSOCKET |
1591 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
532 | if (events) |
|
|
533 | { |
1592 | { |
534 | unsigned long argp; |
1593 | anfd->events = 0; |
535 | anfd->handle = _get_osfhandle (fd); |
1594 | |
536 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
1595 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
|
|
1596 | anfd->events |= (unsigned char)w->events; |
|
|
1597 | |
|
|
1598 | if (o_events != anfd->events) |
|
|
1599 | o_reify = EV__IOFDSET; /* actually |= */ |
537 | } |
1600 | } |
538 | #endif |
|
|
539 | |
1601 | |
540 | anfd->reify = 0; |
1602 | if (o_reify & EV__IOFDSET) |
541 | |
|
|
542 | backend_modify (EV_A_ fd, anfd->events, events); |
1603 | backend_modify (EV_A_ fd, o_events, anfd->events); |
543 | anfd->events = events; |
|
|
544 | } |
1604 | } |
545 | |
1605 | |
546 | fdchangecnt = 0; |
1606 | fdchangecnt = 0; |
547 | } |
1607 | } |
548 | |
1608 | |
549 | void inline_size |
1609 | /* something about the given fd changed */ |
|
|
1610 | inline_size void |
550 | fd_change (EV_P_ int fd) |
1611 | fd_change (EV_P_ int fd, int flags) |
551 | { |
1612 | { |
552 | if (expect_false (anfds [fd].reify)) |
1613 | unsigned char reify = anfds [fd].reify; |
553 | return; |
|
|
554 | |
|
|
555 | anfds [fd].reify = 1; |
1614 | anfds [fd].reify |= flags; |
556 | |
1615 | |
|
|
1616 | if (expect_true (!reify)) |
|
|
1617 | { |
557 | ++fdchangecnt; |
1618 | ++fdchangecnt; |
558 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
1619 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
559 | fdchanges [fdchangecnt - 1] = fd; |
1620 | fdchanges [fdchangecnt - 1] = fd; |
|
|
1621 | } |
560 | } |
1622 | } |
561 | |
1623 | |
562 | void inline_speed |
1624 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
1625 | inline_speed void ecb_cold |
563 | fd_kill (EV_P_ int fd) |
1626 | fd_kill (EV_P_ int fd) |
564 | { |
1627 | { |
565 | ev_io *w; |
1628 | ev_io *w; |
566 | |
1629 | |
567 | while ((w = (ev_io *)anfds [fd].head)) |
1630 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
569 | ev_io_stop (EV_A_ w); |
1632 | ev_io_stop (EV_A_ w); |
570 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1633 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
571 | } |
1634 | } |
572 | } |
1635 | } |
573 | |
1636 | |
574 | int inline_size |
1637 | /* check whether the given fd is actually valid, for error recovery */ |
|
|
1638 | inline_size int ecb_cold |
575 | fd_valid (int fd) |
1639 | fd_valid (int fd) |
576 | { |
1640 | { |
577 | #ifdef _WIN32 |
1641 | #ifdef _WIN32 |
578 | return _get_osfhandle (fd) != -1; |
1642 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
579 | #else |
1643 | #else |
580 | return fcntl (fd, F_GETFD) != -1; |
1644 | return fcntl (fd, F_GETFD) != -1; |
581 | #endif |
1645 | #endif |
582 | } |
1646 | } |
583 | |
1647 | |
584 | /* called on EBADF to verify fds */ |
1648 | /* called on EBADF to verify fds */ |
585 | static void noinline |
1649 | static void noinline ecb_cold |
586 | fd_ebadf (EV_P) |
1650 | fd_ebadf (EV_P) |
587 | { |
1651 | { |
588 | int fd; |
1652 | int fd; |
589 | |
1653 | |
590 | for (fd = 0; fd < anfdmax; ++fd) |
1654 | for (fd = 0; fd < anfdmax; ++fd) |
591 | if (anfds [fd].events) |
1655 | if (anfds [fd].events) |
592 | if (!fd_valid (fd) == -1 && errno == EBADF) |
1656 | if (!fd_valid (fd) && errno == EBADF) |
593 | fd_kill (EV_A_ fd); |
1657 | fd_kill (EV_A_ fd); |
594 | } |
1658 | } |
595 | |
1659 | |
596 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1660 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
597 | static void noinline |
1661 | static void noinline ecb_cold |
598 | fd_enomem (EV_P) |
1662 | fd_enomem (EV_P) |
599 | { |
1663 | { |
600 | int fd; |
1664 | int fd; |
601 | |
1665 | |
602 | for (fd = anfdmax; fd--; ) |
1666 | for (fd = anfdmax; fd--; ) |
603 | if (anfds [fd].events) |
1667 | if (anfds [fd].events) |
604 | { |
1668 | { |
605 | fd_kill (EV_A_ fd); |
1669 | fd_kill (EV_A_ fd); |
606 | return; |
1670 | break; |
607 | } |
1671 | } |
608 | } |
1672 | } |
609 | |
1673 | |
610 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1674 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
611 | static void noinline |
1675 | static void noinline |
… | |
… | |
615 | |
1679 | |
616 | for (fd = 0; fd < anfdmax; ++fd) |
1680 | for (fd = 0; fd < anfdmax; ++fd) |
617 | if (anfds [fd].events) |
1681 | if (anfds [fd].events) |
618 | { |
1682 | { |
619 | anfds [fd].events = 0; |
1683 | anfds [fd].events = 0; |
620 | fd_change (EV_A_ fd); |
1684 | anfds [fd].emask = 0; |
|
|
1685 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
621 | } |
1686 | } |
622 | } |
1687 | } |
623 | |
1688 | |
624 | /*****************************************************************************/ |
1689 | /* used to prepare libev internal fd's */ |
625 | |
1690 | /* this is not fork-safe */ |
626 | void inline_speed |
1691 | inline_speed void |
627 | upheap (WT *heap, int k) |
|
|
628 | { |
|
|
629 | WT w = heap [k]; |
|
|
630 | |
|
|
631 | while (k && heap [k >> 1]->at > w->at) |
|
|
632 | { |
|
|
633 | heap [k] = heap [k >> 1]; |
|
|
634 | ((W)heap [k])->active = k + 1; |
|
|
635 | k >>= 1; |
|
|
636 | } |
|
|
637 | |
|
|
638 | heap [k] = w; |
|
|
639 | ((W)heap [k])->active = k + 1; |
|
|
640 | |
|
|
641 | } |
|
|
642 | |
|
|
643 | void inline_speed |
|
|
644 | downheap (WT *heap, int N, int k) |
|
|
645 | { |
|
|
646 | WT w = heap [k]; |
|
|
647 | |
|
|
648 | while (k < (N >> 1)) |
|
|
649 | { |
|
|
650 | int j = k << 1; |
|
|
651 | |
|
|
652 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
|
|
653 | ++j; |
|
|
654 | |
|
|
655 | if (w->at <= heap [j]->at) |
|
|
656 | break; |
|
|
657 | |
|
|
658 | heap [k] = heap [j]; |
|
|
659 | ((W)heap [k])->active = k + 1; |
|
|
660 | k = j; |
|
|
661 | } |
|
|
662 | |
|
|
663 | heap [k] = w; |
|
|
664 | ((W)heap [k])->active = k + 1; |
|
|
665 | } |
|
|
666 | |
|
|
667 | void inline_size |
|
|
668 | adjustheap (WT *heap, int N, int k) |
|
|
669 | { |
|
|
670 | upheap (heap, k); |
|
|
671 | downheap (heap, N, k); |
|
|
672 | } |
|
|
673 | |
|
|
674 | /*****************************************************************************/ |
|
|
675 | |
|
|
676 | typedef struct |
|
|
677 | { |
|
|
678 | WL head; |
|
|
679 | sig_atomic_t volatile gotsig; |
|
|
680 | } ANSIG; |
|
|
681 | |
|
|
682 | static ANSIG *signals; |
|
|
683 | static int signalmax; |
|
|
684 | |
|
|
685 | static int sigpipe [2]; |
|
|
686 | static sig_atomic_t volatile gotsig; |
|
|
687 | static ev_io sigev; |
|
|
688 | |
|
|
689 | void inline_size |
|
|
690 | signals_init (ANSIG *base, int count) |
|
|
691 | { |
|
|
692 | while (count--) |
|
|
693 | { |
|
|
694 | base->head = 0; |
|
|
695 | base->gotsig = 0; |
|
|
696 | |
|
|
697 | ++base; |
|
|
698 | } |
|
|
699 | } |
|
|
700 | |
|
|
701 | static void |
|
|
702 | sighandler (int signum) |
|
|
703 | { |
|
|
704 | #if _WIN32 |
|
|
705 | signal (signum, sighandler); |
|
|
706 | #endif |
|
|
707 | |
|
|
708 | signals [signum - 1].gotsig = 1; |
|
|
709 | |
|
|
710 | if (!gotsig) |
|
|
711 | { |
|
|
712 | int old_errno = errno; |
|
|
713 | gotsig = 1; |
|
|
714 | write (sigpipe [1], &signum, 1); |
|
|
715 | errno = old_errno; |
|
|
716 | } |
|
|
717 | } |
|
|
718 | |
|
|
719 | void noinline |
|
|
720 | ev_feed_signal_event (EV_P_ int signum) |
|
|
721 | { |
|
|
722 | WL w; |
|
|
723 | |
|
|
724 | #if EV_MULTIPLICITY |
|
|
725 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
726 | #endif |
|
|
727 | |
|
|
728 | --signum; |
|
|
729 | |
|
|
730 | if (signum < 0 || signum >= signalmax) |
|
|
731 | return; |
|
|
732 | |
|
|
733 | signals [signum].gotsig = 0; |
|
|
734 | |
|
|
735 | for (w = signals [signum].head; w; w = w->next) |
|
|
736 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
737 | } |
|
|
738 | |
|
|
739 | static void |
|
|
740 | sigcb (EV_P_ ev_io *iow, int revents) |
|
|
741 | { |
|
|
742 | int signum; |
|
|
743 | |
|
|
744 | read (sigpipe [0], &revents, 1); |
|
|
745 | gotsig = 0; |
|
|
746 | |
|
|
747 | for (signum = signalmax; signum--; ) |
|
|
748 | if (signals [signum].gotsig) |
|
|
749 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
750 | } |
|
|
751 | |
|
|
752 | void inline_size |
|
|
753 | fd_intern (int fd) |
1692 | fd_intern (int fd) |
754 | { |
1693 | { |
755 | #ifdef _WIN32 |
1694 | #ifdef _WIN32 |
756 | int arg = 1; |
1695 | unsigned long arg = 1; |
757 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1696 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
758 | #else |
1697 | #else |
759 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1698 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
760 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1699 | fcntl (fd, F_SETFL, O_NONBLOCK); |
761 | #endif |
1700 | #endif |
762 | } |
1701 | } |
763 | |
1702 | |
764 | static void noinline |
|
|
765 | siginit (EV_P) |
|
|
766 | { |
|
|
767 | fd_intern (sigpipe [0]); |
|
|
768 | fd_intern (sigpipe [1]); |
|
|
769 | |
|
|
770 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
771 | ev_io_start (EV_A_ &sigev); |
|
|
772 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
|
|
773 | } |
|
|
774 | |
|
|
775 | /*****************************************************************************/ |
1703 | /*****************************************************************************/ |
776 | |
1704 | |
777 | static ev_child *childs [EV_PID_HASHSIZE]; |
1705 | /* |
|
|
1706 | * the heap functions want a real array index. array index 0 is guaranteed to not |
|
|
1707 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
|
|
1708 | * the branching factor of the d-tree. |
|
|
1709 | */ |
778 | |
1710 | |
|
|
1711 | /* |
|
|
1712 | * at the moment we allow libev the luxury of two heaps, |
|
|
1713 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
1714 | * which is more cache-efficient. |
|
|
1715 | * the difference is about 5% with 50000+ watchers. |
|
|
1716 | */ |
|
|
1717 | #if EV_USE_4HEAP |
|
|
1718 | |
|
|
1719 | #define DHEAP 4 |
|
|
1720 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
1721 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
1722 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
|
|
1723 | |
|
|
1724 | /* away from the root */ |
|
|
1725 | inline_speed void |
|
|
1726 | downheap (ANHE *heap, int N, int k) |
|
|
1727 | { |
|
|
1728 | ANHE he = heap [k]; |
|
|
1729 | ANHE *E = heap + N + HEAP0; |
|
|
1730 | |
|
|
1731 | for (;;) |
|
|
1732 | { |
|
|
1733 | ev_tstamp minat; |
|
|
1734 | ANHE *minpos; |
|
|
1735 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
|
|
1736 | |
|
|
1737 | /* find minimum child */ |
|
|
1738 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
1739 | { |
|
|
1740 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
1741 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
1742 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
1743 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
1744 | } |
|
|
1745 | else if (pos < E) |
|
|
1746 | { |
|
|
1747 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
1748 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
1749 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
1750 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
1751 | } |
|
|
1752 | else |
|
|
1753 | break; |
|
|
1754 | |
|
|
1755 | if (ANHE_at (he) <= minat) |
|
|
1756 | break; |
|
|
1757 | |
|
|
1758 | heap [k] = *minpos; |
|
|
1759 | ev_active (ANHE_w (*minpos)) = k; |
|
|
1760 | |
|
|
1761 | k = minpos - heap; |
|
|
1762 | } |
|
|
1763 | |
|
|
1764 | heap [k] = he; |
|
|
1765 | ev_active (ANHE_w (he)) = k; |
|
|
1766 | } |
|
|
1767 | |
|
|
1768 | #else /* 4HEAP */ |
|
|
1769 | |
|
|
1770 | #define HEAP0 1 |
|
|
1771 | #define HPARENT(k) ((k) >> 1) |
|
|
1772 | #define UPHEAP_DONE(p,k) (!(p)) |
|
|
1773 | |
|
|
1774 | /* away from the root */ |
|
|
1775 | inline_speed void |
|
|
1776 | downheap (ANHE *heap, int N, int k) |
|
|
1777 | { |
|
|
1778 | ANHE he = heap [k]; |
|
|
1779 | |
|
|
1780 | for (;;) |
|
|
1781 | { |
|
|
1782 | int c = k << 1; |
|
|
1783 | |
|
|
1784 | if (c >= N + HEAP0) |
|
|
1785 | break; |
|
|
1786 | |
|
|
1787 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
1788 | ? 1 : 0; |
|
|
1789 | |
|
|
1790 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
1791 | break; |
|
|
1792 | |
|
|
1793 | heap [k] = heap [c]; |
|
|
1794 | ev_active (ANHE_w (heap [k])) = k; |
|
|
1795 | |
|
|
1796 | k = c; |
|
|
1797 | } |
|
|
1798 | |
|
|
1799 | heap [k] = he; |
|
|
1800 | ev_active (ANHE_w (he)) = k; |
|
|
1801 | } |
|
|
1802 | #endif |
|
|
1803 | |
|
|
1804 | /* towards the root */ |
|
|
1805 | inline_speed void |
|
|
1806 | upheap (ANHE *heap, int k) |
|
|
1807 | { |
|
|
1808 | ANHE he = heap [k]; |
|
|
1809 | |
|
|
1810 | for (;;) |
|
|
1811 | { |
|
|
1812 | int p = HPARENT (k); |
|
|
1813 | |
|
|
1814 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
1815 | break; |
|
|
1816 | |
|
|
1817 | heap [k] = heap [p]; |
|
|
1818 | ev_active (ANHE_w (heap [k])) = k; |
|
|
1819 | k = p; |
|
|
1820 | } |
|
|
1821 | |
|
|
1822 | heap [k] = he; |
|
|
1823 | ev_active (ANHE_w (he)) = k; |
|
|
1824 | } |
|
|
1825 | |
|
|
1826 | /* move an element suitably so it is in a correct place */ |
|
|
1827 | inline_size void |
|
|
1828 | adjustheap (ANHE *heap, int N, int k) |
|
|
1829 | { |
|
|
1830 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
|
|
1831 | upheap (heap, k); |
|
|
1832 | else |
|
|
1833 | downheap (heap, N, k); |
|
|
1834 | } |
|
|
1835 | |
|
|
1836 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
1837 | inline_size void |
|
|
1838 | reheap (ANHE *heap, int N) |
|
|
1839 | { |
|
|
1840 | int i; |
|
|
1841 | |
|
|
1842 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
1843 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
1844 | for (i = 0; i < N; ++i) |
|
|
1845 | upheap (heap, i + HEAP0); |
|
|
1846 | } |
|
|
1847 | |
|
|
1848 | /*****************************************************************************/ |
|
|
1849 | |
|
|
1850 | /* associate signal watchers to a signal signal */ |
|
|
1851 | typedef struct |
|
|
1852 | { |
|
|
1853 | EV_ATOMIC_T pending; |
|
|
1854 | #if EV_MULTIPLICITY |
|
|
1855 | EV_P; |
|
|
1856 | #endif |
|
|
1857 | WL head; |
|
|
1858 | } ANSIG; |
|
|
1859 | |
|
|
1860 | static ANSIG signals [EV_NSIG - 1]; |
|
|
1861 | |
|
|
1862 | /*****************************************************************************/ |
|
|
1863 | |
|
|
1864 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
1865 | |
|
|
1866 | static void noinline ecb_cold |
|
|
1867 | evpipe_init (EV_P) |
|
|
1868 | { |
|
|
1869 | if (!ev_is_active (&pipe_w)) |
|
|
1870 | { |
|
|
1871 | # if EV_USE_EVENTFD |
|
|
1872 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1873 | if (evfd < 0 && errno == EINVAL) |
|
|
1874 | evfd = eventfd (0, 0); |
|
|
1875 | |
|
|
1876 | if (evfd >= 0) |
|
|
1877 | { |
|
|
1878 | evpipe [0] = -1; |
|
|
1879 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
|
|
1880 | ev_io_set (&pipe_w, evfd, EV_READ); |
|
|
1881 | } |
|
|
1882 | else |
|
|
1883 | # endif |
|
|
1884 | { |
|
|
1885 | while (pipe (evpipe)) |
|
|
1886 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
1887 | |
|
|
1888 | fd_intern (evpipe [0]); |
|
|
1889 | fd_intern (evpipe [1]); |
|
|
1890 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
|
|
1891 | } |
|
|
1892 | |
|
|
1893 | ev_io_start (EV_A_ &pipe_w); |
|
|
1894 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1895 | } |
|
|
1896 | } |
|
|
1897 | |
|
|
1898 | inline_speed void |
|
|
1899 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1900 | { |
|
|
1901 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
|
|
1902 | |
|
|
1903 | if (expect_true (*flag)) |
|
|
1904 | return; |
|
|
1905 | |
|
|
1906 | *flag = 1; |
|
|
1907 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
1908 | |
|
|
1909 | pipe_write_skipped = 1; |
|
|
1910 | |
|
|
1911 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
1912 | |
|
|
1913 | if (pipe_write_wanted) |
|
|
1914 | { |
|
|
1915 | int old_errno; |
|
|
1916 | |
|
|
1917 | pipe_write_skipped = 0; |
|
|
1918 | ECB_MEMORY_FENCE_RELEASE; |
|
|
1919 | |
|
|
1920 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
1921 | |
|
|
1922 | #if EV_USE_EVENTFD |
|
|
1923 | if (evfd >= 0) |
|
|
1924 | { |
|
|
1925 | uint64_t counter = 1; |
|
|
1926 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1927 | } |
|
|
1928 | else |
|
|
1929 | #endif |
|
|
1930 | { |
779 | #ifndef _WIN32 |
1931 | #ifdef _WIN32 |
|
|
1932 | WSABUF buf; |
|
|
1933 | DWORD sent; |
|
|
1934 | buf.buf = &buf; |
|
|
1935 | buf.len = 1; |
|
|
1936 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
|
|
1937 | #else |
|
|
1938 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
1939 | #endif |
|
|
1940 | } |
|
|
1941 | |
|
|
1942 | errno = old_errno; |
|
|
1943 | } |
|
|
1944 | } |
|
|
1945 | |
|
|
1946 | /* called whenever the libev signal pipe */ |
|
|
1947 | /* got some events (signal, async) */ |
|
|
1948 | static void |
|
|
1949 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
1950 | { |
|
|
1951 | int i; |
|
|
1952 | |
|
|
1953 | if (revents & EV_READ) |
|
|
1954 | { |
|
|
1955 | #if EV_USE_EVENTFD |
|
|
1956 | if (evfd >= 0) |
|
|
1957 | { |
|
|
1958 | uint64_t counter; |
|
|
1959 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1960 | } |
|
|
1961 | else |
|
|
1962 | #endif |
|
|
1963 | { |
|
|
1964 | char dummy[4]; |
|
|
1965 | #ifdef _WIN32 |
|
|
1966 | WSABUF buf; |
|
|
1967 | DWORD recvd; |
|
|
1968 | DWORD flags = 0; |
|
|
1969 | buf.buf = dummy; |
|
|
1970 | buf.len = sizeof (dummy); |
|
|
1971 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
|
|
1972 | #else |
|
|
1973 | read (evpipe [0], &dummy, sizeof (dummy)); |
|
|
1974 | #endif |
|
|
1975 | } |
|
|
1976 | } |
|
|
1977 | |
|
|
1978 | pipe_write_skipped = 0; |
|
|
1979 | |
|
|
1980 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
|
|
1981 | |
|
|
1982 | #if EV_SIGNAL_ENABLE |
|
|
1983 | if (sig_pending) |
|
|
1984 | { |
|
|
1985 | sig_pending = 0; |
|
|
1986 | |
|
|
1987 | ECB_MEMORY_FENCE; |
|
|
1988 | |
|
|
1989 | for (i = EV_NSIG - 1; i--; ) |
|
|
1990 | if (expect_false (signals [i].pending)) |
|
|
1991 | ev_feed_signal_event (EV_A_ i + 1); |
|
|
1992 | } |
|
|
1993 | #endif |
|
|
1994 | |
|
|
1995 | #if EV_ASYNC_ENABLE |
|
|
1996 | if (async_pending) |
|
|
1997 | { |
|
|
1998 | async_pending = 0; |
|
|
1999 | |
|
|
2000 | ECB_MEMORY_FENCE; |
|
|
2001 | |
|
|
2002 | for (i = asynccnt; i--; ) |
|
|
2003 | if (asyncs [i]->sent) |
|
|
2004 | { |
|
|
2005 | asyncs [i]->sent = 0; |
|
|
2006 | ECB_MEMORY_FENCE_RELEASE; |
|
|
2007 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
2008 | } |
|
|
2009 | } |
|
|
2010 | #endif |
|
|
2011 | } |
|
|
2012 | |
|
|
2013 | /*****************************************************************************/ |
|
|
2014 | |
|
|
2015 | void |
|
|
2016 | ev_feed_signal (int signum) EV_THROW |
|
|
2017 | { |
|
|
2018 | #if EV_MULTIPLICITY |
|
|
2019 | EV_P = signals [signum - 1].loop; |
|
|
2020 | |
|
|
2021 | if (!EV_A) |
|
|
2022 | return; |
|
|
2023 | #endif |
|
|
2024 | |
|
|
2025 | if (!ev_active (&pipe_w)) |
|
|
2026 | return; |
|
|
2027 | |
|
|
2028 | signals [signum - 1].pending = 1; |
|
|
2029 | evpipe_write (EV_A_ &sig_pending); |
|
|
2030 | } |
|
|
2031 | |
|
|
2032 | static void |
|
|
2033 | ev_sighandler (int signum) |
|
|
2034 | { |
|
|
2035 | #ifdef _WIN32 |
|
|
2036 | signal (signum, ev_sighandler); |
|
|
2037 | #endif |
|
|
2038 | |
|
|
2039 | ev_feed_signal (signum); |
|
|
2040 | } |
|
|
2041 | |
|
|
2042 | void noinline |
|
|
2043 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
|
|
2044 | { |
|
|
2045 | WL w; |
|
|
2046 | |
|
|
2047 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
2048 | return; |
|
|
2049 | |
|
|
2050 | --signum; |
|
|
2051 | |
|
|
2052 | #if EV_MULTIPLICITY |
|
|
2053 | /* it is permissible to try to feed a signal to the wrong loop */ |
|
|
2054 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
|
|
2055 | |
|
|
2056 | if (expect_false (signals [signum].loop != EV_A)) |
|
|
2057 | return; |
|
|
2058 | #endif |
|
|
2059 | |
|
|
2060 | signals [signum].pending = 0; |
|
|
2061 | ECB_MEMORY_FENCE_RELEASE; |
|
|
2062 | |
|
|
2063 | for (w = signals [signum].head; w; w = w->next) |
|
|
2064 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
2065 | } |
|
|
2066 | |
|
|
2067 | #if EV_USE_SIGNALFD |
|
|
2068 | static void |
|
|
2069 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
2070 | { |
|
|
2071 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
2072 | |
|
|
2073 | for (;;) |
|
|
2074 | { |
|
|
2075 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
2076 | |
|
|
2077 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
2078 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
2079 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
2080 | |
|
|
2081 | if (res < (ssize_t)sizeof (si)) |
|
|
2082 | break; |
|
|
2083 | } |
|
|
2084 | } |
|
|
2085 | #endif |
|
|
2086 | |
|
|
2087 | #endif |
|
|
2088 | |
|
|
2089 | /*****************************************************************************/ |
|
|
2090 | |
|
|
2091 | #if EV_CHILD_ENABLE |
|
|
2092 | static WL childs [EV_PID_HASHSIZE]; |
780 | |
2093 | |
781 | static ev_signal childev; |
2094 | static ev_signal childev; |
782 | |
2095 | |
783 | void inline_speed |
2096 | #ifndef WIFCONTINUED |
|
|
2097 | # define WIFCONTINUED(status) 0 |
|
|
2098 | #endif |
|
|
2099 | |
|
|
2100 | /* handle a single child status event */ |
|
|
2101 | inline_speed void |
784 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
2102 | child_reap (EV_P_ int chain, int pid, int status) |
785 | { |
2103 | { |
786 | ev_child *w; |
2104 | ev_child *w; |
|
|
2105 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
787 | |
2106 | |
788 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
2107 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
2108 | { |
789 | if (w->pid == pid || !w->pid) |
2109 | if ((w->pid == pid || !w->pid) |
|
|
2110 | && (!traced || (w->flags & 1))) |
790 | { |
2111 | { |
791 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
2112 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
792 | w->rpid = pid; |
2113 | w->rpid = pid; |
793 | w->rstatus = status; |
2114 | w->rstatus = status; |
794 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
2115 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
795 | } |
2116 | } |
|
|
2117 | } |
796 | } |
2118 | } |
797 | |
2119 | |
798 | #ifndef WCONTINUED |
2120 | #ifndef WCONTINUED |
799 | # define WCONTINUED 0 |
2121 | # define WCONTINUED 0 |
800 | #endif |
2122 | #endif |
801 | |
2123 | |
|
|
2124 | /* called on sigchld etc., calls waitpid */ |
802 | static void |
2125 | static void |
803 | childcb (EV_P_ ev_signal *sw, int revents) |
2126 | childcb (EV_P_ ev_signal *sw, int revents) |
804 | { |
2127 | { |
805 | int pid, status; |
2128 | int pid, status; |
806 | |
2129 | |
… | |
… | |
809 | if (!WCONTINUED |
2132 | if (!WCONTINUED |
810 | || errno != EINVAL |
2133 | || errno != EINVAL |
811 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
2134 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
812 | return; |
2135 | return; |
813 | |
2136 | |
814 | /* make sure we are called again until all childs have been reaped */ |
2137 | /* make sure we are called again until all children have been reaped */ |
815 | /* we need to do it this way so that the callback gets called before we continue */ |
2138 | /* we need to do it this way so that the callback gets called before we continue */ |
816 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
2139 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
817 | |
2140 | |
818 | child_reap (EV_A_ sw, pid, pid, status); |
2141 | child_reap (EV_A_ pid, pid, status); |
819 | if (EV_PID_HASHSIZE > 1) |
2142 | if ((EV_PID_HASHSIZE) > 1) |
820 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
2143 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
821 | } |
2144 | } |
822 | |
2145 | |
823 | #endif |
2146 | #endif |
824 | |
2147 | |
825 | /*****************************************************************************/ |
2148 | /*****************************************************************************/ |
826 | |
2149 | |
|
|
2150 | #if EV_USE_IOCP |
|
|
2151 | # include "ev_iocp.c" |
|
|
2152 | #endif |
827 | #if EV_USE_PORT |
2153 | #if EV_USE_PORT |
828 | # include "ev_port.c" |
2154 | # include "ev_port.c" |
829 | #endif |
2155 | #endif |
830 | #if EV_USE_KQUEUE |
2156 | #if EV_USE_KQUEUE |
831 | # include "ev_kqueue.c" |
2157 | # include "ev_kqueue.c" |
… | |
… | |
838 | #endif |
2164 | #endif |
839 | #if EV_USE_SELECT |
2165 | #if EV_USE_SELECT |
840 | # include "ev_select.c" |
2166 | # include "ev_select.c" |
841 | #endif |
2167 | #endif |
842 | |
2168 | |
843 | int |
2169 | int ecb_cold |
844 | ev_version_major (void) |
2170 | ev_version_major (void) EV_THROW |
845 | { |
2171 | { |
846 | return EV_VERSION_MAJOR; |
2172 | return EV_VERSION_MAJOR; |
847 | } |
2173 | } |
848 | |
2174 | |
849 | int |
2175 | int ecb_cold |
850 | ev_version_minor (void) |
2176 | ev_version_minor (void) EV_THROW |
851 | { |
2177 | { |
852 | return EV_VERSION_MINOR; |
2178 | return EV_VERSION_MINOR; |
853 | } |
2179 | } |
854 | |
2180 | |
855 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2181 | /* return true if we are running with elevated privileges and should ignore env variables */ |
856 | int inline_size |
2182 | int inline_size ecb_cold |
857 | enable_secure (void) |
2183 | enable_secure (void) |
858 | { |
2184 | { |
859 | #ifdef _WIN32 |
2185 | #ifdef _WIN32 |
860 | return 0; |
2186 | return 0; |
861 | #else |
2187 | #else |
862 | return getuid () != geteuid () |
2188 | return getuid () != geteuid () |
863 | || getgid () != getegid (); |
2189 | || getgid () != getegid (); |
864 | #endif |
2190 | #endif |
865 | } |
2191 | } |
866 | |
2192 | |
867 | unsigned int |
2193 | unsigned int ecb_cold |
868 | ev_supported_backends (void) |
2194 | ev_supported_backends (void) EV_THROW |
869 | { |
2195 | { |
870 | unsigned int flags = 0; |
2196 | unsigned int flags = 0; |
871 | |
2197 | |
872 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2198 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
873 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2199 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
… | |
… | |
876 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2202 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
877 | |
2203 | |
878 | return flags; |
2204 | return flags; |
879 | } |
2205 | } |
880 | |
2206 | |
881 | unsigned int |
2207 | unsigned int ecb_cold |
882 | ev_recommended_backends (void) |
2208 | ev_recommended_backends (void) EV_THROW |
883 | { |
2209 | { |
884 | unsigned int flags = ev_supported_backends (); |
2210 | unsigned int flags = ev_supported_backends (); |
885 | |
2211 | |
886 | #ifndef __NetBSD__ |
2212 | #ifndef __NetBSD__ |
887 | /* kqueue is borked on everything but netbsd apparently */ |
2213 | /* kqueue is borked on everything but netbsd apparently */ |
888 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
2214 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
889 | flags &= ~EVBACKEND_KQUEUE; |
2215 | flags &= ~EVBACKEND_KQUEUE; |
890 | #endif |
2216 | #endif |
891 | #ifdef __APPLE__ |
2217 | #ifdef __APPLE__ |
892 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
2218 | /* only select works correctly on that "unix-certified" platform */ |
893 | flags &= ~EVBACKEND_POLL; |
2219 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
2220 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
|
|
2221 | #endif |
|
|
2222 | #ifdef __FreeBSD__ |
|
|
2223 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
894 | #endif |
2224 | #endif |
895 | |
2225 | |
896 | return flags; |
2226 | return flags; |
897 | } |
2227 | } |
898 | |
2228 | |
|
|
2229 | unsigned int ecb_cold |
|
|
2230 | ev_embeddable_backends (void) EV_THROW |
|
|
2231 | { |
|
|
2232 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
|
|
2233 | |
|
|
2234 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
2235 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
|
|
2236 | flags &= ~EVBACKEND_EPOLL; |
|
|
2237 | |
|
|
2238 | return flags; |
|
|
2239 | } |
|
|
2240 | |
899 | unsigned int |
2241 | unsigned int |
900 | ev_embeddable_backends (void) |
2242 | ev_backend (EV_P) EV_THROW |
901 | { |
2243 | { |
902 | return EVBACKEND_EPOLL |
2244 | return backend; |
903 | | EVBACKEND_KQUEUE |
|
|
904 | | EVBACKEND_PORT; |
|
|
905 | } |
2245 | } |
906 | |
2246 | |
|
|
2247 | #if EV_FEATURE_API |
907 | unsigned int |
2248 | unsigned int |
908 | ev_backend (EV_P) |
2249 | ev_iteration (EV_P) EV_THROW |
909 | { |
2250 | { |
910 | return backend; |
2251 | return loop_count; |
911 | } |
2252 | } |
912 | |
2253 | |
913 | unsigned int |
2254 | unsigned int |
914 | ev_loop_count (EV_P) |
2255 | ev_depth (EV_P) EV_THROW |
915 | { |
2256 | { |
916 | return loop_count; |
2257 | return loop_depth; |
917 | } |
2258 | } |
918 | |
2259 | |
|
|
2260 | void |
|
|
2261 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
|
|
2262 | { |
|
|
2263 | io_blocktime = interval; |
|
|
2264 | } |
|
|
2265 | |
|
|
2266 | void |
|
|
2267 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
|
|
2268 | { |
|
|
2269 | timeout_blocktime = interval; |
|
|
2270 | } |
|
|
2271 | |
|
|
2272 | void |
|
|
2273 | ev_set_userdata (EV_P_ void *data) EV_THROW |
|
|
2274 | { |
|
|
2275 | userdata = data; |
|
|
2276 | } |
|
|
2277 | |
|
|
2278 | void * |
|
|
2279 | ev_userdata (EV_P) EV_THROW |
|
|
2280 | { |
|
|
2281 | return userdata; |
|
|
2282 | } |
|
|
2283 | |
|
|
2284 | void |
|
|
2285 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW |
|
|
2286 | { |
|
|
2287 | invoke_cb = invoke_pending_cb; |
|
|
2288 | } |
|
|
2289 | |
|
|
2290 | void |
|
|
2291 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW |
|
|
2292 | { |
|
|
2293 | release_cb = release; |
|
|
2294 | acquire_cb = acquire; |
|
|
2295 | } |
|
|
2296 | #endif |
|
|
2297 | |
|
|
2298 | /* initialise a loop structure, must be zero-initialised */ |
919 | static void noinline |
2299 | static void noinline ecb_cold |
920 | loop_init (EV_P_ unsigned int flags) |
2300 | loop_init (EV_P_ unsigned int flags) EV_THROW |
921 | { |
2301 | { |
922 | if (!backend) |
2302 | if (!backend) |
923 | { |
2303 | { |
|
|
2304 | origflags = flags; |
|
|
2305 | |
|
|
2306 | #if EV_USE_REALTIME |
|
|
2307 | if (!have_realtime) |
|
|
2308 | { |
|
|
2309 | struct timespec ts; |
|
|
2310 | |
|
|
2311 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
2312 | have_realtime = 1; |
|
|
2313 | } |
|
|
2314 | #endif |
|
|
2315 | |
924 | #if EV_USE_MONOTONIC |
2316 | #if EV_USE_MONOTONIC |
|
|
2317 | if (!have_monotonic) |
925 | { |
2318 | { |
926 | struct timespec ts; |
2319 | struct timespec ts; |
|
|
2320 | |
927 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
2321 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
928 | have_monotonic = 1; |
2322 | have_monotonic = 1; |
929 | } |
2323 | } |
930 | #endif |
2324 | #endif |
931 | |
|
|
932 | ev_rt_now = ev_time (); |
|
|
933 | mn_now = get_clock (); |
|
|
934 | now_floor = mn_now; |
|
|
935 | rtmn_diff = ev_rt_now - mn_now; |
|
|
936 | |
2325 | |
937 | /* pid check not overridable via env */ |
2326 | /* pid check not overridable via env */ |
938 | #ifndef _WIN32 |
2327 | #ifndef _WIN32 |
939 | if (flags & EVFLAG_FORKCHECK) |
2328 | if (flags & EVFLAG_FORKCHECK) |
940 | curpid = getpid (); |
2329 | curpid = getpid (); |
… | |
… | |
943 | if (!(flags & EVFLAG_NOENV) |
2332 | if (!(flags & EVFLAG_NOENV) |
944 | && !enable_secure () |
2333 | && !enable_secure () |
945 | && getenv ("LIBEV_FLAGS")) |
2334 | && getenv ("LIBEV_FLAGS")) |
946 | flags = atoi (getenv ("LIBEV_FLAGS")); |
2335 | flags = atoi (getenv ("LIBEV_FLAGS")); |
947 | |
2336 | |
948 | if (!(flags & 0x0000ffffUL)) |
2337 | ev_rt_now = ev_time (); |
|
|
2338 | mn_now = get_clock (); |
|
|
2339 | now_floor = mn_now; |
|
|
2340 | rtmn_diff = ev_rt_now - mn_now; |
|
|
2341 | #if EV_FEATURE_API |
|
|
2342 | invoke_cb = ev_invoke_pending; |
|
|
2343 | #endif |
|
|
2344 | |
|
|
2345 | io_blocktime = 0.; |
|
|
2346 | timeout_blocktime = 0.; |
|
|
2347 | backend = 0; |
|
|
2348 | backend_fd = -1; |
|
|
2349 | sig_pending = 0; |
|
|
2350 | #if EV_ASYNC_ENABLE |
|
|
2351 | async_pending = 0; |
|
|
2352 | #endif |
|
|
2353 | pipe_write_skipped = 0; |
|
|
2354 | pipe_write_wanted = 0; |
|
|
2355 | #if EV_USE_INOTIFY |
|
|
2356 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
|
|
2357 | #endif |
|
|
2358 | #if EV_USE_SIGNALFD |
|
|
2359 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
|
|
2360 | #endif |
|
|
2361 | |
|
|
2362 | if (!(flags & EVBACKEND_MASK)) |
949 | flags |= ev_recommended_backends (); |
2363 | flags |= ev_recommended_backends (); |
950 | |
2364 | |
951 | backend = 0; |
|
|
952 | backend_fd = -1; |
|
|
953 | #if EV_USE_INOTIFY |
2365 | #if EV_USE_IOCP |
954 | fs_fd = -2; |
2366 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
955 | #endif |
2367 | #endif |
956 | |
|
|
957 | #if EV_USE_PORT |
2368 | #if EV_USE_PORT |
958 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
2369 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
959 | #endif |
2370 | #endif |
960 | #if EV_USE_KQUEUE |
2371 | #if EV_USE_KQUEUE |
961 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
2372 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
968 | #endif |
2379 | #endif |
969 | #if EV_USE_SELECT |
2380 | #if EV_USE_SELECT |
970 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
2381 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
971 | #endif |
2382 | #endif |
972 | |
2383 | |
|
|
2384 | ev_prepare_init (&pending_w, pendingcb); |
|
|
2385 | |
|
|
2386 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
973 | ev_init (&sigev, sigcb); |
2387 | ev_init (&pipe_w, pipecb); |
974 | ev_set_priority (&sigev, EV_MAXPRI); |
2388 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
2389 | #endif |
975 | } |
2390 | } |
976 | } |
2391 | } |
977 | |
2392 | |
978 | static void noinline |
2393 | /* free up a loop structure */ |
|
|
2394 | void ecb_cold |
979 | loop_destroy (EV_P) |
2395 | ev_loop_destroy (EV_P) |
980 | { |
2396 | { |
981 | int i; |
2397 | int i; |
|
|
2398 | |
|
|
2399 | #if EV_MULTIPLICITY |
|
|
2400 | /* mimic free (0) */ |
|
|
2401 | if (!EV_A) |
|
|
2402 | return; |
|
|
2403 | #endif |
|
|
2404 | |
|
|
2405 | #if EV_CLEANUP_ENABLE |
|
|
2406 | /* queue cleanup watchers (and execute them) */ |
|
|
2407 | if (expect_false (cleanupcnt)) |
|
|
2408 | { |
|
|
2409 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
2410 | EV_INVOKE_PENDING; |
|
|
2411 | } |
|
|
2412 | #endif |
|
|
2413 | |
|
|
2414 | #if EV_CHILD_ENABLE |
|
|
2415 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
|
|
2416 | { |
|
|
2417 | ev_ref (EV_A); /* child watcher */ |
|
|
2418 | ev_signal_stop (EV_A_ &childev); |
|
|
2419 | } |
|
|
2420 | #endif |
|
|
2421 | |
|
|
2422 | if (ev_is_active (&pipe_w)) |
|
|
2423 | { |
|
|
2424 | /*ev_ref (EV_A);*/ |
|
|
2425 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
|
|
2426 | |
|
|
2427 | #if EV_USE_EVENTFD |
|
|
2428 | if (evfd >= 0) |
|
|
2429 | close (evfd); |
|
|
2430 | #endif |
|
|
2431 | |
|
|
2432 | if (evpipe [0] >= 0) |
|
|
2433 | { |
|
|
2434 | EV_WIN32_CLOSE_FD (evpipe [0]); |
|
|
2435 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
2436 | } |
|
|
2437 | } |
|
|
2438 | |
|
|
2439 | #if EV_USE_SIGNALFD |
|
|
2440 | if (ev_is_active (&sigfd_w)) |
|
|
2441 | close (sigfd); |
|
|
2442 | #endif |
982 | |
2443 | |
983 | #if EV_USE_INOTIFY |
2444 | #if EV_USE_INOTIFY |
984 | if (fs_fd >= 0) |
2445 | if (fs_fd >= 0) |
985 | close (fs_fd); |
2446 | close (fs_fd); |
986 | #endif |
2447 | #endif |
987 | |
2448 | |
988 | if (backend_fd >= 0) |
2449 | if (backend_fd >= 0) |
989 | close (backend_fd); |
2450 | close (backend_fd); |
990 | |
2451 | |
|
|
2452 | #if EV_USE_IOCP |
|
|
2453 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
2454 | #endif |
991 | #if EV_USE_PORT |
2455 | #if EV_USE_PORT |
992 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
2456 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
993 | #endif |
2457 | #endif |
994 | #if EV_USE_KQUEUE |
2458 | #if EV_USE_KQUEUE |
995 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
2459 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
… | |
… | |
1010 | #if EV_IDLE_ENABLE |
2474 | #if EV_IDLE_ENABLE |
1011 | array_free (idle, [i]); |
2475 | array_free (idle, [i]); |
1012 | #endif |
2476 | #endif |
1013 | } |
2477 | } |
1014 | |
2478 | |
|
|
2479 | ev_free (anfds); anfds = 0; anfdmax = 0; |
|
|
2480 | |
1015 | /* have to use the microsoft-never-gets-it-right macro */ |
2481 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
2482 | array_free (rfeed, EMPTY); |
1016 | array_free (fdchange, EMPTY); |
2483 | array_free (fdchange, EMPTY); |
1017 | array_free (timer, EMPTY); |
2484 | array_free (timer, EMPTY); |
1018 | #if EV_PERIODIC_ENABLE |
2485 | #if EV_PERIODIC_ENABLE |
1019 | array_free (periodic, EMPTY); |
2486 | array_free (periodic, EMPTY); |
1020 | #endif |
2487 | #endif |
|
|
2488 | #if EV_FORK_ENABLE |
|
|
2489 | array_free (fork, EMPTY); |
|
|
2490 | #endif |
|
|
2491 | #if EV_CLEANUP_ENABLE |
|
|
2492 | array_free (cleanup, EMPTY); |
|
|
2493 | #endif |
1021 | array_free (prepare, EMPTY); |
2494 | array_free (prepare, EMPTY); |
1022 | array_free (check, EMPTY); |
2495 | array_free (check, EMPTY); |
|
|
2496 | #if EV_ASYNC_ENABLE |
|
|
2497 | array_free (async, EMPTY); |
|
|
2498 | #endif |
1023 | |
2499 | |
1024 | backend = 0; |
2500 | backend = 0; |
1025 | } |
|
|
1026 | |
2501 | |
|
|
2502 | #if EV_MULTIPLICITY |
|
|
2503 | if (ev_is_default_loop (EV_A)) |
|
|
2504 | #endif |
|
|
2505 | ev_default_loop_ptr = 0; |
|
|
2506 | #if EV_MULTIPLICITY |
|
|
2507 | else |
|
|
2508 | ev_free (EV_A); |
|
|
2509 | #endif |
|
|
2510 | } |
|
|
2511 | |
|
|
2512 | #if EV_USE_INOTIFY |
1027 | void inline_size infy_fork (EV_P); |
2513 | inline_size void infy_fork (EV_P); |
|
|
2514 | #endif |
1028 | |
2515 | |
1029 | void inline_size |
2516 | inline_size void |
1030 | loop_fork (EV_P) |
2517 | loop_fork (EV_P) |
1031 | { |
2518 | { |
1032 | #if EV_USE_PORT |
2519 | #if EV_USE_PORT |
1033 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
2520 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1034 | #endif |
2521 | #endif |
… | |
… | |
1040 | #endif |
2527 | #endif |
1041 | #if EV_USE_INOTIFY |
2528 | #if EV_USE_INOTIFY |
1042 | infy_fork (EV_A); |
2529 | infy_fork (EV_A); |
1043 | #endif |
2530 | #endif |
1044 | |
2531 | |
1045 | if (ev_is_active (&sigev)) |
2532 | if (ev_is_active (&pipe_w)) |
1046 | { |
2533 | { |
1047 | /* default loop */ |
2534 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
1048 | |
2535 | |
1049 | ev_ref (EV_A); |
2536 | ev_ref (EV_A); |
1050 | ev_io_stop (EV_A_ &sigev); |
2537 | ev_io_stop (EV_A_ &pipe_w); |
1051 | close (sigpipe [0]); |
|
|
1052 | close (sigpipe [1]); |
|
|
1053 | |
2538 | |
1054 | while (pipe (sigpipe)) |
2539 | #if EV_USE_EVENTFD |
1055 | syserr ("(libev) error creating pipe"); |
2540 | if (evfd >= 0) |
|
|
2541 | close (evfd); |
|
|
2542 | #endif |
1056 | |
2543 | |
|
|
2544 | if (evpipe [0] >= 0) |
|
|
2545 | { |
|
|
2546 | EV_WIN32_CLOSE_FD (evpipe [0]); |
|
|
2547 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
2548 | } |
|
|
2549 | |
|
|
2550 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1057 | siginit (EV_A); |
2551 | evpipe_init (EV_A); |
|
|
2552 | /* now iterate over everything, in case we missed something */ |
|
|
2553 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
2554 | #endif |
1058 | } |
2555 | } |
1059 | |
2556 | |
1060 | postfork = 0; |
2557 | postfork = 0; |
1061 | } |
2558 | } |
1062 | |
2559 | |
1063 | #if EV_MULTIPLICITY |
2560 | #if EV_MULTIPLICITY |
|
|
2561 | |
1064 | struct ev_loop * |
2562 | struct ev_loop * ecb_cold |
1065 | ev_loop_new (unsigned int flags) |
2563 | ev_loop_new (unsigned int flags) EV_THROW |
1066 | { |
2564 | { |
1067 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2565 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1068 | |
2566 | |
1069 | memset (loop, 0, sizeof (struct ev_loop)); |
2567 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1070 | |
|
|
1071 | loop_init (EV_A_ flags); |
2568 | loop_init (EV_A_ flags); |
1072 | |
2569 | |
1073 | if (ev_backend (EV_A)) |
2570 | if (ev_backend (EV_A)) |
1074 | return loop; |
2571 | return EV_A; |
1075 | |
2572 | |
|
|
2573 | ev_free (EV_A); |
1076 | return 0; |
2574 | return 0; |
1077 | } |
2575 | } |
1078 | |
2576 | |
1079 | void |
2577 | #endif /* multiplicity */ |
1080 | ev_loop_destroy (EV_P) |
|
|
1081 | { |
|
|
1082 | loop_destroy (EV_A); |
|
|
1083 | ev_free (loop); |
|
|
1084 | } |
|
|
1085 | |
2578 | |
1086 | void |
2579 | #if EV_VERIFY |
1087 | ev_loop_fork (EV_P) |
2580 | static void noinline ecb_cold |
|
|
2581 | verify_watcher (EV_P_ W w) |
1088 | { |
2582 | { |
1089 | postfork = 1; |
2583 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1090 | } |
|
|
1091 | |
2584 | |
|
|
2585 | if (w->pending) |
|
|
2586 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
2587 | } |
|
|
2588 | |
|
|
2589 | static void noinline ecb_cold |
|
|
2590 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
2591 | { |
|
|
2592 | int i; |
|
|
2593 | |
|
|
2594 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
2595 | { |
|
|
2596 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
2597 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
2598 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
2599 | |
|
|
2600 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
2601 | } |
|
|
2602 | } |
|
|
2603 | |
|
|
2604 | static void noinline ecb_cold |
|
|
2605 | array_verify (EV_P_ W *ws, int cnt) |
|
|
2606 | { |
|
|
2607 | while (cnt--) |
|
|
2608 | { |
|
|
2609 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
2610 | verify_watcher (EV_A_ ws [cnt]); |
|
|
2611 | } |
|
|
2612 | } |
|
|
2613 | #endif |
|
|
2614 | |
|
|
2615 | #if EV_FEATURE_API |
|
|
2616 | void ecb_cold |
|
|
2617 | ev_verify (EV_P) EV_THROW |
|
|
2618 | { |
|
|
2619 | #if EV_VERIFY |
|
|
2620 | int i; |
|
|
2621 | WL w, w2; |
|
|
2622 | |
|
|
2623 | assert (activecnt >= -1); |
|
|
2624 | |
|
|
2625 | assert (fdchangemax >= fdchangecnt); |
|
|
2626 | for (i = 0; i < fdchangecnt; ++i) |
|
|
2627 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
2628 | |
|
|
2629 | assert (anfdmax >= 0); |
|
|
2630 | for (i = 0; i < anfdmax; ++i) |
|
|
2631 | { |
|
|
2632 | int j = 0; |
|
|
2633 | |
|
|
2634 | for (w = w2 = anfds [i].head; w; w = w->next) |
|
|
2635 | { |
|
|
2636 | verify_watcher (EV_A_ (W)w); |
|
|
2637 | |
|
|
2638 | if (j++ & 1) |
|
|
2639 | { |
|
|
2640 | assert (("libev: io watcher list contains a loop", w != w2)); |
|
|
2641 | w2 = w2->next; |
|
|
2642 | } |
|
|
2643 | |
|
|
2644 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
2645 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
2646 | } |
|
|
2647 | } |
|
|
2648 | |
|
|
2649 | assert (timermax >= timercnt); |
|
|
2650 | verify_heap (EV_A_ timers, timercnt); |
|
|
2651 | |
|
|
2652 | #if EV_PERIODIC_ENABLE |
|
|
2653 | assert (periodicmax >= periodiccnt); |
|
|
2654 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
2655 | #endif |
|
|
2656 | |
|
|
2657 | for (i = NUMPRI; i--; ) |
|
|
2658 | { |
|
|
2659 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
2660 | #if EV_IDLE_ENABLE |
|
|
2661 | assert (idleall >= 0); |
|
|
2662 | assert (idlemax [i] >= idlecnt [i]); |
|
|
2663 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
2664 | #endif |
|
|
2665 | } |
|
|
2666 | |
|
|
2667 | #if EV_FORK_ENABLE |
|
|
2668 | assert (forkmax >= forkcnt); |
|
|
2669 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
2670 | #endif |
|
|
2671 | |
|
|
2672 | #if EV_CLEANUP_ENABLE |
|
|
2673 | assert (cleanupmax >= cleanupcnt); |
|
|
2674 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
2675 | #endif |
|
|
2676 | |
|
|
2677 | #if EV_ASYNC_ENABLE |
|
|
2678 | assert (asyncmax >= asynccnt); |
|
|
2679 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
2680 | #endif |
|
|
2681 | |
|
|
2682 | #if EV_PREPARE_ENABLE |
|
|
2683 | assert (preparemax >= preparecnt); |
|
|
2684 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
2685 | #endif |
|
|
2686 | |
|
|
2687 | #if EV_CHECK_ENABLE |
|
|
2688 | assert (checkmax >= checkcnt); |
|
|
2689 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
2690 | #endif |
|
|
2691 | |
|
|
2692 | # if 0 |
|
|
2693 | #if EV_CHILD_ENABLE |
|
|
2694 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
2695 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
2696 | #endif |
|
|
2697 | # endif |
|
|
2698 | #endif |
|
|
2699 | } |
1092 | #endif |
2700 | #endif |
1093 | |
2701 | |
1094 | #if EV_MULTIPLICITY |
2702 | #if EV_MULTIPLICITY |
1095 | struct ev_loop * |
2703 | struct ev_loop * ecb_cold |
1096 | ev_default_loop_init (unsigned int flags) |
|
|
1097 | #else |
2704 | #else |
1098 | int |
2705 | int |
|
|
2706 | #endif |
1099 | ev_default_loop (unsigned int flags) |
2707 | ev_default_loop (unsigned int flags) EV_THROW |
1100 | #endif |
|
|
1101 | { |
2708 | { |
1102 | if (sigpipe [0] == sigpipe [1]) |
|
|
1103 | if (pipe (sigpipe)) |
|
|
1104 | return 0; |
|
|
1105 | |
|
|
1106 | if (!ev_default_loop_ptr) |
2709 | if (!ev_default_loop_ptr) |
1107 | { |
2710 | { |
1108 | #if EV_MULTIPLICITY |
2711 | #if EV_MULTIPLICITY |
1109 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
2712 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1110 | #else |
2713 | #else |
1111 | ev_default_loop_ptr = 1; |
2714 | ev_default_loop_ptr = 1; |
1112 | #endif |
2715 | #endif |
1113 | |
2716 | |
1114 | loop_init (EV_A_ flags); |
2717 | loop_init (EV_A_ flags); |
1115 | |
2718 | |
1116 | if (ev_backend (EV_A)) |
2719 | if (ev_backend (EV_A)) |
1117 | { |
2720 | { |
1118 | siginit (EV_A); |
2721 | #if EV_CHILD_ENABLE |
1119 | |
|
|
1120 | #ifndef _WIN32 |
|
|
1121 | ev_signal_init (&childev, childcb, SIGCHLD); |
2722 | ev_signal_init (&childev, childcb, SIGCHLD); |
1122 | ev_set_priority (&childev, EV_MAXPRI); |
2723 | ev_set_priority (&childev, EV_MAXPRI); |
1123 | ev_signal_start (EV_A_ &childev); |
2724 | ev_signal_start (EV_A_ &childev); |
1124 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
2725 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1125 | #endif |
2726 | #endif |
… | |
… | |
1130 | |
2731 | |
1131 | return ev_default_loop_ptr; |
2732 | return ev_default_loop_ptr; |
1132 | } |
2733 | } |
1133 | |
2734 | |
1134 | void |
2735 | void |
1135 | ev_default_destroy (void) |
2736 | ev_loop_fork (EV_P) EV_THROW |
1136 | { |
2737 | { |
1137 | #if EV_MULTIPLICITY |
2738 | postfork = 1; /* must be in line with ev_default_fork */ |
1138 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1139 | #endif |
|
|
1140 | |
|
|
1141 | #ifndef _WIN32 |
|
|
1142 | ev_ref (EV_A); /* child watcher */ |
|
|
1143 | ev_signal_stop (EV_A_ &childev); |
|
|
1144 | #endif |
|
|
1145 | |
|
|
1146 | ev_ref (EV_A); /* signal watcher */ |
|
|
1147 | ev_io_stop (EV_A_ &sigev); |
|
|
1148 | |
|
|
1149 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1150 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1151 | |
|
|
1152 | loop_destroy (EV_A); |
|
|
1153 | } |
2739 | } |
|
|
2740 | |
|
|
2741 | /*****************************************************************************/ |
1154 | |
2742 | |
1155 | void |
2743 | void |
1156 | ev_default_fork (void) |
2744 | ev_invoke (EV_P_ void *w, int revents) |
1157 | { |
2745 | { |
1158 | #if EV_MULTIPLICITY |
2746 | EV_CB_INVOKE ((W)w, revents); |
1159 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1160 | #endif |
|
|
1161 | |
|
|
1162 | if (backend) |
|
|
1163 | postfork = 1; |
|
|
1164 | } |
2747 | } |
1165 | |
2748 | |
1166 | /*****************************************************************************/ |
2749 | unsigned int |
1167 | |
2750 | ev_pending_count (EV_P) EV_THROW |
1168 | void inline_speed |
|
|
1169 | call_pending (EV_P) |
|
|
1170 | { |
2751 | { |
1171 | int pri; |
2752 | int pri; |
|
|
2753 | unsigned int count = 0; |
1172 | |
2754 | |
1173 | for (pri = NUMPRI; pri--; ) |
2755 | for (pri = NUMPRI; pri--; ) |
|
|
2756 | count += pendingcnt [pri]; |
|
|
2757 | |
|
|
2758 | return count; |
|
|
2759 | } |
|
|
2760 | |
|
|
2761 | void noinline |
|
|
2762 | ev_invoke_pending (EV_P) |
|
|
2763 | { |
|
|
2764 | for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */ |
1174 | while (pendingcnt [pri]) |
2765 | while (pendingcnt [pendingpri]) |
1175 | { |
2766 | { |
1176 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2767 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
1177 | |
2768 | |
1178 | if (expect_true (p->w)) |
|
|
1179 | { |
|
|
1180 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1181 | |
|
|
1182 | p->w->pending = 0; |
2769 | p->w->pending = 0; |
1183 | EV_CB_INVOKE (p->w, p->events); |
2770 | EV_CB_INVOKE (p->w, p->events); |
1184 | } |
2771 | EV_FREQUENT_CHECK; |
1185 | } |
2772 | } |
1186 | } |
2773 | } |
1187 | |
2774 | |
1188 | void inline_size |
|
|
1189 | timers_reify (EV_P) |
|
|
1190 | { |
|
|
1191 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
|
|
1192 | { |
|
|
1193 | ev_timer *w = timers [0]; |
|
|
1194 | |
|
|
1195 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1196 | |
|
|
1197 | /* first reschedule or stop timer */ |
|
|
1198 | if (w->repeat) |
|
|
1199 | { |
|
|
1200 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1201 | |
|
|
1202 | ((WT)w)->at += w->repeat; |
|
|
1203 | if (((WT)w)->at < mn_now) |
|
|
1204 | ((WT)w)->at = mn_now; |
|
|
1205 | |
|
|
1206 | downheap ((WT *)timers, timercnt, 0); |
|
|
1207 | } |
|
|
1208 | else |
|
|
1209 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1210 | |
|
|
1211 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1212 | } |
|
|
1213 | } |
|
|
1214 | |
|
|
1215 | #if EV_PERIODIC_ENABLE |
|
|
1216 | void inline_size |
|
|
1217 | periodics_reify (EV_P) |
|
|
1218 | { |
|
|
1219 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
|
|
1220 | { |
|
|
1221 | ev_periodic *w = periodics [0]; |
|
|
1222 | |
|
|
1223 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1224 | |
|
|
1225 | /* first reschedule or stop timer */ |
|
|
1226 | if (w->reschedule_cb) |
|
|
1227 | { |
|
|
1228 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
|
|
1229 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1230 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1231 | } |
|
|
1232 | else if (w->interval) |
|
|
1233 | { |
|
|
1234 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
|
|
1235 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
|
|
1236 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1237 | } |
|
|
1238 | else |
|
|
1239 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1240 | |
|
|
1241 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1242 | } |
|
|
1243 | } |
|
|
1244 | |
|
|
1245 | static void noinline |
|
|
1246 | periodics_reschedule (EV_P) |
|
|
1247 | { |
|
|
1248 | int i; |
|
|
1249 | |
|
|
1250 | /* adjust periodics after time jump */ |
|
|
1251 | for (i = 0; i < periodiccnt; ++i) |
|
|
1252 | { |
|
|
1253 | ev_periodic *w = periodics [i]; |
|
|
1254 | |
|
|
1255 | if (w->reschedule_cb) |
|
|
1256 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1257 | else if (w->interval) |
|
|
1258 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
|
|
1259 | } |
|
|
1260 | |
|
|
1261 | /* now rebuild the heap */ |
|
|
1262 | for (i = periodiccnt >> 1; i--; ) |
|
|
1263 | downheap ((WT *)periodics, periodiccnt, i); |
|
|
1264 | } |
|
|
1265 | #endif |
|
|
1266 | |
|
|
1267 | #if EV_IDLE_ENABLE |
2775 | #if EV_IDLE_ENABLE |
1268 | void inline_size |
2776 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
2777 | /* only when higher priorities are idle" logic */ |
|
|
2778 | inline_size void |
1269 | idle_reify (EV_P) |
2779 | idle_reify (EV_P) |
1270 | { |
2780 | { |
1271 | if (expect_false (!idleall)) |
2781 | if (expect_false (idleall)) |
1272 | { |
2782 | { |
1273 | int pri; |
2783 | int pri; |
1274 | |
2784 | |
1275 | for (pri = NUMPRI; pri--; ) |
2785 | for (pri = NUMPRI; pri--; ) |
1276 | { |
2786 | { |
… | |
… | |
1285 | } |
2795 | } |
1286 | } |
2796 | } |
1287 | } |
2797 | } |
1288 | #endif |
2798 | #endif |
1289 | |
2799 | |
1290 | int inline_size |
2800 | /* make timers pending */ |
1291 | time_update_monotonic (EV_P) |
2801 | inline_size void |
|
|
2802 | timers_reify (EV_P) |
1292 | { |
2803 | { |
|
|
2804 | EV_FREQUENT_CHECK; |
|
|
2805 | |
|
|
2806 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
|
|
2807 | { |
|
|
2808 | do |
|
|
2809 | { |
|
|
2810 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
2811 | |
|
|
2812 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
2813 | |
|
|
2814 | /* first reschedule or stop timer */ |
|
|
2815 | if (w->repeat) |
|
|
2816 | { |
|
|
2817 | ev_at (w) += w->repeat; |
|
|
2818 | if (ev_at (w) < mn_now) |
|
|
2819 | ev_at (w) = mn_now; |
|
|
2820 | |
|
|
2821 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
2822 | |
|
|
2823 | ANHE_at_cache (timers [HEAP0]); |
|
|
2824 | downheap (timers, timercnt, HEAP0); |
|
|
2825 | } |
|
|
2826 | else |
|
|
2827 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2828 | |
|
|
2829 | EV_FREQUENT_CHECK; |
|
|
2830 | feed_reverse (EV_A_ (W)w); |
|
|
2831 | } |
|
|
2832 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
|
|
2833 | |
|
|
2834 | feed_reverse_done (EV_A_ EV_TIMER); |
|
|
2835 | } |
|
|
2836 | } |
|
|
2837 | |
|
|
2838 | #if EV_PERIODIC_ENABLE |
|
|
2839 | |
|
|
2840 | static void noinline |
|
|
2841 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
2842 | { |
|
|
2843 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
|
|
2844 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
|
|
2845 | |
|
|
2846 | /* the above almost always errs on the low side */ |
|
|
2847 | while (at <= ev_rt_now) |
|
|
2848 | { |
|
|
2849 | ev_tstamp nat = at + w->interval; |
|
|
2850 | |
|
|
2851 | /* when resolution fails us, we use ev_rt_now */ |
|
|
2852 | if (expect_false (nat == at)) |
|
|
2853 | { |
|
|
2854 | at = ev_rt_now; |
|
|
2855 | break; |
|
|
2856 | } |
|
|
2857 | |
|
|
2858 | at = nat; |
|
|
2859 | } |
|
|
2860 | |
|
|
2861 | ev_at (w) = at; |
|
|
2862 | } |
|
|
2863 | |
|
|
2864 | /* make periodics pending */ |
|
|
2865 | inline_size void |
|
|
2866 | periodics_reify (EV_P) |
|
|
2867 | { |
|
|
2868 | EV_FREQUENT_CHECK; |
|
|
2869 | |
|
|
2870 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
|
|
2871 | { |
|
|
2872 | do |
|
|
2873 | { |
|
|
2874 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
2875 | |
|
|
2876 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
2877 | |
|
|
2878 | /* first reschedule or stop timer */ |
|
|
2879 | if (w->reschedule_cb) |
|
|
2880 | { |
|
|
2881 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2882 | |
|
|
2883 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
2884 | |
|
|
2885 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2886 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2887 | } |
|
|
2888 | else if (w->interval) |
|
|
2889 | { |
|
|
2890 | periodic_recalc (EV_A_ w); |
|
|
2891 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2892 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2893 | } |
|
|
2894 | else |
|
|
2895 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2896 | |
|
|
2897 | EV_FREQUENT_CHECK; |
|
|
2898 | feed_reverse (EV_A_ (W)w); |
|
|
2899 | } |
|
|
2900 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
|
|
2901 | |
|
|
2902 | feed_reverse_done (EV_A_ EV_PERIODIC); |
|
|
2903 | } |
|
|
2904 | } |
|
|
2905 | |
|
|
2906 | /* simply recalculate all periodics */ |
|
|
2907 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
|
|
2908 | static void noinline ecb_cold |
|
|
2909 | periodics_reschedule (EV_P) |
|
|
2910 | { |
|
|
2911 | int i; |
|
|
2912 | |
|
|
2913 | /* adjust periodics after time jump */ |
|
|
2914 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
|
|
2915 | { |
|
|
2916 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
|
|
2917 | |
|
|
2918 | if (w->reschedule_cb) |
|
|
2919 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2920 | else if (w->interval) |
|
|
2921 | periodic_recalc (EV_A_ w); |
|
|
2922 | |
|
|
2923 | ANHE_at_cache (periodics [i]); |
|
|
2924 | } |
|
|
2925 | |
|
|
2926 | reheap (periodics, periodiccnt); |
|
|
2927 | } |
|
|
2928 | #endif |
|
|
2929 | |
|
|
2930 | /* adjust all timers by a given offset */ |
|
|
2931 | static void noinline ecb_cold |
|
|
2932 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
2933 | { |
|
|
2934 | int i; |
|
|
2935 | |
|
|
2936 | for (i = 0; i < timercnt; ++i) |
|
|
2937 | { |
|
|
2938 | ANHE *he = timers + i + HEAP0; |
|
|
2939 | ANHE_w (*he)->at += adjust; |
|
|
2940 | ANHE_at_cache (*he); |
|
|
2941 | } |
|
|
2942 | } |
|
|
2943 | |
|
|
2944 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2945 | /* also detect if there was a timejump, and act accordingly */ |
|
|
2946 | inline_speed void |
|
|
2947 | time_update (EV_P_ ev_tstamp max_block) |
|
|
2948 | { |
|
|
2949 | #if EV_USE_MONOTONIC |
|
|
2950 | if (expect_true (have_monotonic)) |
|
|
2951 | { |
|
|
2952 | int i; |
|
|
2953 | ev_tstamp odiff = rtmn_diff; |
|
|
2954 | |
1293 | mn_now = get_clock (); |
2955 | mn_now = get_clock (); |
1294 | |
2956 | |
|
|
2957 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
2958 | /* interpolate in the meantime */ |
1295 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
2959 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1296 | { |
2960 | { |
1297 | ev_rt_now = rtmn_diff + mn_now; |
2961 | ev_rt_now = rtmn_diff + mn_now; |
1298 | return 0; |
2962 | return; |
1299 | } |
2963 | } |
1300 | else |
2964 | |
1301 | { |
|
|
1302 | now_floor = mn_now; |
2965 | now_floor = mn_now; |
1303 | ev_rt_now = ev_time (); |
2966 | ev_rt_now = ev_time (); |
1304 | return 1; |
|
|
1305 | } |
|
|
1306 | } |
|
|
1307 | |
2967 | |
1308 | void inline_size |
2968 | /* loop a few times, before making important decisions. |
1309 | time_update (EV_P) |
2969 | * on the choice of "4": one iteration isn't enough, |
1310 | { |
2970 | * in case we get preempted during the calls to |
1311 | int i; |
2971 | * ev_time and get_clock. a second call is almost guaranteed |
1312 | |
2972 | * to succeed in that case, though. and looping a few more times |
1313 | #if EV_USE_MONOTONIC |
2973 | * doesn't hurt either as we only do this on time-jumps or |
1314 | if (expect_true (have_monotonic)) |
2974 | * in the unlikely event of having been preempted here. |
1315 | { |
2975 | */ |
1316 | if (time_update_monotonic (EV_A)) |
2976 | for (i = 4; --i; ) |
1317 | { |
2977 | { |
1318 | ev_tstamp odiff = rtmn_diff; |
2978 | ev_tstamp diff; |
1319 | |
|
|
1320 | /* loop a few times, before making important decisions. |
|
|
1321 | * on the choice of "4": one iteration isn't enough, |
|
|
1322 | * in case we get preempted during the calls to |
|
|
1323 | * ev_time and get_clock. a second call is almost guaranteed |
|
|
1324 | * to succeed in that case, though. and looping a few more times |
|
|
1325 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1326 | * in the unlikely event of having been preempted here. |
|
|
1327 | */ |
|
|
1328 | for (i = 4; --i; ) |
|
|
1329 | { |
|
|
1330 | rtmn_diff = ev_rt_now - mn_now; |
2979 | rtmn_diff = ev_rt_now - mn_now; |
1331 | |
2980 | |
1332 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
2981 | diff = odiff - rtmn_diff; |
|
|
2982 | |
|
|
2983 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
1333 | return; /* all is well */ |
2984 | return; /* all is well */ |
1334 | |
2985 | |
1335 | ev_rt_now = ev_time (); |
2986 | ev_rt_now = ev_time (); |
1336 | mn_now = get_clock (); |
2987 | mn_now = get_clock (); |
1337 | now_floor = mn_now; |
2988 | now_floor = mn_now; |
1338 | } |
2989 | } |
1339 | |
2990 | |
|
|
2991 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2992 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1340 | # if EV_PERIODIC_ENABLE |
2993 | # if EV_PERIODIC_ENABLE |
1341 | periodics_reschedule (EV_A); |
2994 | periodics_reschedule (EV_A); |
1342 | # endif |
2995 | # endif |
1343 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1344 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1345 | } |
|
|
1346 | } |
2996 | } |
1347 | else |
2997 | else |
1348 | #endif |
2998 | #endif |
1349 | { |
2999 | { |
1350 | ev_rt_now = ev_time (); |
3000 | ev_rt_now = ev_time (); |
1351 | |
3001 | |
1352 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
3002 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1353 | { |
3003 | { |
|
|
3004 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
3005 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1354 | #if EV_PERIODIC_ENABLE |
3006 | #if EV_PERIODIC_ENABLE |
1355 | periodics_reschedule (EV_A); |
3007 | periodics_reschedule (EV_A); |
1356 | #endif |
3008 | #endif |
1357 | |
|
|
1358 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1359 | for (i = 0; i < timercnt; ++i) |
|
|
1360 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
|
|
1361 | } |
3009 | } |
1362 | |
3010 | |
1363 | mn_now = ev_rt_now; |
3011 | mn_now = ev_rt_now; |
1364 | } |
3012 | } |
1365 | } |
3013 | } |
1366 | |
3014 | |
1367 | void |
3015 | int |
1368 | ev_ref (EV_P) |
|
|
1369 | { |
|
|
1370 | ++activecnt; |
|
|
1371 | } |
|
|
1372 | |
|
|
1373 | void |
|
|
1374 | ev_unref (EV_P) |
|
|
1375 | { |
|
|
1376 | --activecnt; |
|
|
1377 | } |
|
|
1378 | |
|
|
1379 | static int loop_done; |
|
|
1380 | |
|
|
1381 | void |
|
|
1382 | ev_loop (EV_P_ int flags) |
3016 | ev_run (EV_P_ int flags) |
1383 | { |
3017 | { |
1384 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
3018 | #if EV_FEATURE_API |
1385 | ? EVUNLOOP_ONE |
3019 | ++loop_depth; |
1386 | : EVUNLOOP_CANCEL; |
3020 | #endif |
1387 | |
3021 | |
|
|
3022 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
|
|
3023 | |
|
|
3024 | loop_done = EVBREAK_CANCEL; |
|
|
3025 | |
1388 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
3026 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1389 | |
3027 | |
1390 | do |
3028 | do |
1391 | { |
3029 | { |
|
|
3030 | #if EV_VERIFY >= 2 |
|
|
3031 | ev_verify (EV_A); |
|
|
3032 | #endif |
|
|
3033 | |
1392 | #ifndef _WIN32 |
3034 | #ifndef _WIN32 |
1393 | if (expect_false (curpid)) /* penalise the forking check even more */ |
3035 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1394 | if (expect_false (getpid () != curpid)) |
3036 | if (expect_false (getpid () != curpid)) |
1395 | { |
3037 | { |
1396 | curpid = getpid (); |
3038 | curpid = getpid (); |
… | |
… | |
1402 | /* we might have forked, so queue fork handlers */ |
3044 | /* we might have forked, so queue fork handlers */ |
1403 | if (expect_false (postfork)) |
3045 | if (expect_false (postfork)) |
1404 | if (forkcnt) |
3046 | if (forkcnt) |
1405 | { |
3047 | { |
1406 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
3048 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1407 | call_pending (EV_A); |
3049 | EV_INVOKE_PENDING; |
1408 | } |
3050 | } |
1409 | #endif |
3051 | #endif |
1410 | |
3052 | |
|
|
3053 | #if EV_PREPARE_ENABLE |
1411 | /* queue check watchers (and execute them) */ |
3054 | /* queue prepare watchers (and execute them) */ |
1412 | if (expect_false (preparecnt)) |
3055 | if (expect_false (preparecnt)) |
1413 | { |
3056 | { |
1414 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
3057 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1415 | call_pending (EV_A); |
3058 | EV_INVOKE_PENDING; |
1416 | } |
3059 | } |
|
|
3060 | #endif |
1417 | |
3061 | |
1418 | if (expect_false (!activecnt)) |
3062 | if (expect_false (loop_done)) |
1419 | break; |
3063 | break; |
1420 | |
3064 | |
1421 | /* we might have forked, so reify kernel state if necessary */ |
3065 | /* we might have forked, so reify kernel state if necessary */ |
1422 | if (expect_false (postfork)) |
3066 | if (expect_false (postfork)) |
1423 | loop_fork (EV_A); |
3067 | loop_fork (EV_A); |
… | |
… | |
1425 | /* update fd-related kernel structures */ |
3069 | /* update fd-related kernel structures */ |
1426 | fd_reify (EV_A); |
3070 | fd_reify (EV_A); |
1427 | |
3071 | |
1428 | /* calculate blocking time */ |
3072 | /* calculate blocking time */ |
1429 | { |
3073 | { |
1430 | ev_tstamp block; |
3074 | ev_tstamp waittime = 0.; |
|
|
3075 | ev_tstamp sleeptime = 0.; |
1431 | |
3076 | |
1432 | if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt)) |
3077 | /* remember old timestamp for io_blocktime calculation */ |
1433 | block = 0.; /* do not block at all */ |
3078 | ev_tstamp prev_mn_now = mn_now; |
1434 | else |
3079 | |
|
|
3080 | /* update time to cancel out callback processing overhead */ |
|
|
3081 | time_update (EV_A_ 1e100); |
|
|
3082 | |
|
|
3083 | /* from now on, we want a pipe-wake-up */ |
|
|
3084 | pipe_write_wanted = 1; |
|
|
3085 | |
|
|
3086 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
3087 | |
|
|
3088 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
1435 | { |
3089 | { |
1436 | /* update time to cancel out callback processing overhead */ |
|
|
1437 | #if EV_USE_MONOTONIC |
|
|
1438 | if (expect_true (have_monotonic)) |
|
|
1439 | time_update_monotonic (EV_A); |
|
|
1440 | else |
|
|
1441 | #endif |
|
|
1442 | { |
|
|
1443 | ev_rt_now = ev_time (); |
|
|
1444 | mn_now = ev_rt_now; |
|
|
1445 | } |
|
|
1446 | |
|
|
1447 | block = MAX_BLOCKTIME; |
3090 | waittime = MAX_BLOCKTIME; |
1448 | |
3091 | |
1449 | if (timercnt) |
3092 | if (timercnt) |
1450 | { |
3093 | { |
1451 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
3094 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
1452 | if (block > to) block = to; |
3095 | if (waittime > to) waittime = to; |
1453 | } |
3096 | } |
1454 | |
3097 | |
1455 | #if EV_PERIODIC_ENABLE |
3098 | #if EV_PERIODIC_ENABLE |
1456 | if (periodiccnt) |
3099 | if (periodiccnt) |
1457 | { |
3100 | { |
1458 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
3101 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now; |
1459 | if (block > to) block = to; |
3102 | if (waittime > to) waittime = to; |
1460 | } |
3103 | } |
1461 | #endif |
3104 | #endif |
1462 | |
3105 | |
|
|
3106 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
|
|
3107 | if (expect_false (waittime < timeout_blocktime)) |
|
|
3108 | waittime = timeout_blocktime; |
|
|
3109 | |
|
|
3110 | /* at this point, we NEED to wait, so we have to ensure */ |
|
|
3111 | /* to pass a minimum nonzero value to the backend */ |
|
|
3112 | if (expect_false (waittime < backend_mintime)) |
|
|
3113 | waittime = backend_mintime; |
|
|
3114 | |
|
|
3115 | /* extra check because io_blocktime is commonly 0 */ |
1463 | if (expect_false (block < 0.)) block = 0.; |
3116 | if (expect_false (io_blocktime)) |
|
|
3117 | { |
|
|
3118 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
3119 | |
|
|
3120 | if (sleeptime > waittime - backend_mintime) |
|
|
3121 | sleeptime = waittime - backend_mintime; |
|
|
3122 | |
|
|
3123 | if (expect_true (sleeptime > 0.)) |
|
|
3124 | { |
|
|
3125 | ev_sleep (sleeptime); |
|
|
3126 | waittime -= sleeptime; |
|
|
3127 | } |
|
|
3128 | } |
1464 | } |
3129 | } |
1465 | |
3130 | |
|
|
3131 | #if EV_FEATURE_API |
1466 | ++loop_count; |
3132 | ++loop_count; |
|
|
3133 | #endif |
|
|
3134 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
1467 | backend_poll (EV_A_ block); |
3135 | backend_poll (EV_A_ waittime); |
|
|
3136 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
|
|
3137 | |
|
|
3138 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
|
|
3139 | |
|
|
3140 | if (pipe_write_skipped) |
|
|
3141 | { |
|
|
3142 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
3143 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
3144 | } |
|
|
3145 | |
|
|
3146 | |
|
|
3147 | /* update ev_rt_now, do magic */ |
|
|
3148 | time_update (EV_A_ waittime + sleeptime); |
1468 | } |
3149 | } |
1469 | |
|
|
1470 | /* update ev_rt_now, do magic */ |
|
|
1471 | time_update (EV_A); |
|
|
1472 | |
3150 | |
1473 | /* queue pending timers and reschedule them */ |
3151 | /* queue pending timers and reschedule them */ |
1474 | timers_reify (EV_A); /* relative timers called last */ |
3152 | timers_reify (EV_A); /* relative timers called last */ |
1475 | #if EV_PERIODIC_ENABLE |
3153 | #if EV_PERIODIC_ENABLE |
1476 | periodics_reify (EV_A); /* absolute timers called first */ |
3154 | periodics_reify (EV_A); /* absolute timers called first */ |
… | |
… | |
1479 | #if EV_IDLE_ENABLE |
3157 | #if EV_IDLE_ENABLE |
1480 | /* queue idle watchers unless other events are pending */ |
3158 | /* queue idle watchers unless other events are pending */ |
1481 | idle_reify (EV_A); |
3159 | idle_reify (EV_A); |
1482 | #endif |
3160 | #endif |
1483 | |
3161 | |
|
|
3162 | #if EV_CHECK_ENABLE |
1484 | /* queue check watchers, to be executed first */ |
3163 | /* queue check watchers, to be executed first */ |
1485 | if (expect_false (checkcnt)) |
3164 | if (expect_false (checkcnt)) |
1486 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
3165 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
3166 | #endif |
1487 | |
3167 | |
1488 | call_pending (EV_A); |
3168 | EV_INVOKE_PENDING; |
1489 | |
|
|
1490 | } |
3169 | } |
1491 | while (expect_true (activecnt && !loop_done)); |
3170 | while (expect_true ( |
|
|
3171 | activecnt |
|
|
3172 | && !loop_done |
|
|
3173 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
|
|
3174 | )); |
1492 | |
3175 | |
1493 | if (loop_done == EVUNLOOP_ONE) |
3176 | if (loop_done == EVBREAK_ONE) |
1494 | loop_done = EVUNLOOP_CANCEL; |
3177 | loop_done = EVBREAK_CANCEL; |
|
|
3178 | |
|
|
3179 | #if EV_FEATURE_API |
|
|
3180 | --loop_depth; |
|
|
3181 | #endif |
|
|
3182 | |
|
|
3183 | return activecnt; |
1495 | } |
3184 | } |
1496 | |
3185 | |
1497 | void |
3186 | void |
1498 | ev_unloop (EV_P_ int how) |
3187 | ev_break (EV_P_ int how) EV_THROW |
1499 | { |
3188 | { |
1500 | loop_done = how; |
3189 | loop_done = how; |
1501 | } |
3190 | } |
1502 | |
3191 | |
|
|
3192 | void |
|
|
3193 | ev_ref (EV_P) EV_THROW |
|
|
3194 | { |
|
|
3195 | ++activecnt; |
|
|
3196 | } |
|
|
3197 | |
|
|
3198 | void |
|
|
3199 | ev_unref (EV_P) EV_THROW |
|
|
3200 | { |
|
|
3201 | --activecnt; |
|
|
3202 | } |
|
|
3203 | |
|
|
3204 | void |
|
|
3205 | ev_now_update (EV_P) EV_THROW |
|
|
3206 | { |
|
|
3207 | time_update (EV_A_ 1e100); |
|
|
3208 | } |
|
|
3209 | |
|
|
3210 | void |
|
|
3211 | ev_suspend (EV_P) EV_THROW |
|
|
3212 | { |
|
|
3213 | ev_now_update (EV_A); |
|
|
3214 | } |
|
|
3215 | |
|
|
3216 | void |
|
|
3217 | ev_resume (EV_P) EV_THROW |
|
|
3218 | { |
|
|
3219 | ev_tstamp mn_prev = mn_now; |
|
|
3220 | |
|
|
3221 | ev_now_update (EV_A); |
|
|
3222 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
3223 | #if EV_PERIODIC_ENABLE |
|
|
3224 | /* TODO: really do this? */ |
|
|
3225 | periodics_reschedule (EV_A); |
|
|
3226 | #endif |
|
|
3227 | } |
|
|
3228 | |
1503 | /*****************************************************************************/ |
3229 | /*****************************************************************************/ |
|
|
3230 | /* singly-linked list management, used when the expected list length is short */ |
1504 | |
3231 | |
1505 | void inline_size |
3232 | inline_size void |
1506 | wlist_add (WL *head, WL elem) |
3233 | wlist_add (WL *head, WL elem) |
1507 | { |
3234 | { |
1508 | elem->next = *head; |
3235 | elem->next = *head; |
1509 | *head = elem; |
3236 | *head = elem; |
1510 | } |
3237 | } |
1511 | |
3238 | |
1512 | void inline_size |
3239 | inline_size void |
1513 | wlist_del (WL *head, WL elem) |
3240 | wlist_del (WL *head, WL elem) |
1514 | { |
3241 | { |
1515 | while (*head) |
3242 | while (*head) |
1516 | { |
3243 | { |
1517 | if (*head == elem) |
3244 | if (expect_true (*head == elem)) |
1518 | { |
3245 | { |
1519 | *head = elem->next; |
3246 | *head = elem->next; |
1520 | return; |
3247 | break; |
1521 | } |
3248 | } |
1522 | |
3249 | |
1523 | head = &(*head)->next; |
3250 | head = &(*head)->next; |
1524 | } |
3251 | } |
1525 | } |
3252 | } |
1526 | |
3253 | |
1527 | void inline_speed |
3254 | /* internal, faster, version of ev_clear_pending */ |
|
|
3255 | inline_speed void |
1528 | ev_clear_pending (EV_P_ W w) |
3256 | clear_pending (EV_P_ W w) |
1529 | { |
3257 | { |
1530 | if (w->pending) |
3258 | if (w->pending) |
1531 | { |
3259 | { |
1532 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
3260 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
1533 | w->pending = 0; |
3261 | w->pending = 0; |
1534 | } |
3262 | } |
1535 | } |
3263 | } |
1536 | |
3264 | |
1537 | void inline_size |
3265 | int |
|
|
3266 | ev_clear_pending (EV_P_ void *w) EV_THROW |
|
|
3267 | { |
|
|
3268 | W w_ = (W)w; |
|
|
3269 | int pending = w_->pending; |
|
|
3270 | |
|
|
3271 | if (expect_true (pending)) |
|
|
3272 | { |
|
|
3273 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
3274 | p->w = (W)&pending_w; |
|
|
3275 | w_->pending = 0; |
|
|
3276 | return p->events; |
|
|
3277 | } |
|
|
3278 | else |
|
|
3279 | return 0; |
|
|
3280 | } |
|
|
3281 | |
|
|
3282 | inline_size void |
1538 | pri_adjust (EV_P_ W w) |
3283 | pri_adjust (EV_P_ W w) |
1539 | { |
3284 | { |
1540 | int pri = w->priority; |
3285 | int pri = ev_priority (w); |
1541 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
3286 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
1542 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
3287 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
1543 | w->priority = pri; |
3288 | ev_set_priority (w, pri); |
1544 | } |
3289 | } |
1545 | |
3290 | |
1546 | void inline_speed |
3291 | inline_speed void |
1547 | ev_start (EV_P_ W w, int active) |
3292 | ev_start (EV_P_ W w, int active) |
1548 | { |
3293 | { |
1549 | pri_adjust (EV_A_ w); |
3294 | pri_adjust (EV_A_ w); |
1550 | w->active = active; |
3295 | w->active = active; |
1551 | ev_ref (EV_A); |
3296 | ev_ref (EV_A); |
1552 | } |
3297 | } |
1553 | |
3298 | |
1554 | void inline_size |
3299 | inline_size void |
1555 | ev_stop (EV_P_ W w) |
3300 | ev_stop (EV_P_ W w) |
1556 | { |
3301 | { |
1557 | ev_unref (EV_A); |
3302 | ev_unref (EV_A); |
1558 | w->active = 0; |
3303 | w->active = 0; |
1559 | } |
3304 | } |
1560 | |
3305 | |
1561 | /*****************************************************************************/ |
3306 | /*****************************************************************************/ |
1562 | |
3307 | |
1563 | void |
3308 | void noinline |
1564 | ev_io_start (EV_P_ ev_io *w) |
3309 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
1565 | { |
3310 | { |
1566 | int fd = w->fd; |
3311 | int fd = w->fd; |
1567 | |
3312 | |
1568 | if (expect_false (ev_is_active (w))) |
3313 | if (expect_false (ev_is_active (w))) |
1569 | return; |
3314 | return; |
1570 | |
3315 | |
1571 | assert (("ev_io_start called with negative fd", fd >= 0)); |
3316 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
3317 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
|
|
3318 | |
|
|
3319 | EV_FREQUENT_CHECK; |
1572 | |
3320 | |
1573 | ev_start (EV_A_ (W)w, 1); |
3321 | ev_start (EV_A_ (W)w, 1); |
1574 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
3322 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
1575 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
3323 | wlist_add (&anfds[fd].head, (WL)w); |
1576 | |
3324 | |
1577 | fd_change (EV_A_ fd); |
3325 | /* common bug, apparently */ |
1578 | } |
3326 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
1579 | |
3327 | |
1580 | void |
3328 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
|
|
3329 | w->events &= ~EV__IOFDSET; |
|
|
3330 | |
|
|
3331 | EV_FREQUENT_CHECK; |
|
|
3332 | } |
|
|
3333 | |
|
|
3334 | void noinline |
1581 | ev_io_stop (EV_P_ ev_io *w) |
3335 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
1582 | { |
3336 | { |
1583 | ev_clear_pending (EV_A_ (W)w); |
3337 | clear_pending (EV_A_ (W)w); |
1584 | if (expect_false (!ev_is_active (w))) |
3338 | if (expect_false (!ev_is_active (w))) |
1585 | return; |
3339 | return; |
1586 | |
3340 | |
1587 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
3341 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1588 | |
3342 | |
|
|
3343 | EV_FREQUENT_CHECK; |
|
|
3344 | |
1589 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
3345 | wlist_del (&anfds[w->fd].head, (WL)w); |
1590 | ev_stop (EV_A_ (W)w); |
3346 | ev_stop (EV_A_ (W)w); |
1591 | |
3347 | |
1592 | fd_change (EV_A_ w->fd); |
3348 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
1593 | } |
|
|
1594 | |
3349 | |
1595 | void |
3350 | EV_FREQUENT_CHECK; |
|
|
3351 | } |
|
|
3352 | |
|
|
3353 | void noinline |
1596 | ev_timer_start (EV_P_ ev_timer *w) |
3354 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
1597 | { |
3355 | { |
1598 | if (expect_false (ev_is_active (w))) |
3356 | if (expect_false (ev_is_active (w))) |
1599 | return; |
3357 | return; |
1600 | |
3358 | |
1601 | ((WT)w)->at += mn_now; |
3359 | ev_at (w) += mn_now; |
1602 | |
3360 | |
1603 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
3361 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1604 | |
3362 | |
|
|
3363 | EV_FREQUENT_CHECK; |
|
|
3364 | |
|
|
3365 | ++timercnt; |
1605 | ev_start (EV_A_ (W)w, ++timercnt); |
3366 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1606 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
3367 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1607 | timers [timercnt - 1] = w; |
3368 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1608 | upheap ((WT *)timers, timercnt - 1); |
3369 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
3370 | upheap (timers, ev_active (w)); |
1609 | |
3371 | |
|
|
3372 | EV_FREQUENT_CHECK; |
|
|
3373 | |
1610 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
3374 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1611 | } |
3375 | } |
1612 | |
3376 | |
1613 | void |
3377 | void noinline |
1614 | ev_timer_stop (EV_P_ ev_timer *w) |
3378 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
1615 | { |
3379 | { |
1616 | ev_clear_pending (EV_A_ (W)w); |
3380 | clear_pending (EV_A_ (W)w); |
1617 | if (expect_false (!ev_is_active (w))) |
3381 | if (expect_false (!ev_is_active (w))) |
1618 | return; |
3382 | return; |
1619 | |
3383 | |
1620 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
3384 | EV_FREQUENT_CHECK; |
1621 | |
3385 | |
1622 | { |
3386 | { |
1623 | int active = ((W)w)->active; |
3387 | int active = ev_active (w); |
1624 | |
3388 | |
|
|
3389 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
3390 | |
|
|
3391 | --timercnt; |
|
|
3392 | |
1625 | if (expect_true (--active < --timercnt)) |
3393 | if (expect_true (active < timercnt + HEAP0)) |
1626 | { |
3394 | { |
1627 | timers [active] = timers [timercnt]; |
3395 | timers [active] = timers [timercnt + HEAP0]; |
1628 | adjustheap ((WT *)timers, timercnt, active); |
3396 | adjustheap (timers, timercnt, active); |
1629 | } |
3397 | } |
1630 | } |
3398 | } |
1631 | |
3399 | |
1632 | ((WT)w)->at -= mn_now; |
3400 | ev_at (w) -= mn_now; |
1633 | |
3401 | |
1634 | ev_stop (EV_A_ (W)w); |
3402 | ev_stop (EV_A_ (W)w); |
1635 | } |
|
|
1636 | |
3403 | |
1637 | void |
3404 | EV_FREQUENT_CHECK; |
|
|
3405 | } |
|
|
3406 | |
|
|
3407 | void noinline |
1638 | ev_timer_again (EV_P_ ev_timer *w) |
3408 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
1639 | { |
3409 | { |
|
|
3410 | EV_FREQUENT_CHECK; |
|
|
3411 | |
|
|
3412 | clear_pending (EV_A_ (W)w); |
|
|
3413 | |
1640 | if (ev_is_active (w)) |
3414 | if (ev_is_active (w)) |
1641 | { |
3415 | { |
1642 | if (w->repeat) |
3416 | if (w->repeat) |
1643 | { |
3417 | { |
1644 | ((WT)w)->at = mn_now + w->repeat; |
3418 | ev_at (w) = mn_now + w->repeat; |
|
|
3419 | ANHE_at_cache (timers [ev_active (w)]); |
1645 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
3420 | adjustheap (timers, timercnt, ev_active (w)); |
1646 | } |
3421 | } |
1647 | else |
3422 | else |
1648 | ev_timer_stop (EV_A_ w); |
3423 | ev_timer_stop (EV_A_ w); |
1649 | } |
3424 | } |
1650 | else if (w->repeat) |
3425 | else if (w->repeat) |
1651 | { |
3426 | { |
1652 | w->at = w->repeat; |
3427 | ev_at (w) = w->repeat; |
1653 | ev_timer_start (EV_A_ w); |
3428 | ev_timer_start (EV_A_ w); |
1654 | } |
3429 | } |
|
|
3430 | |
|
|
3431 | EV_FREQUENT_CHECK; |
|
|
3432 | } |
|
|
3433 | |
|
|
3434 | ev_tstamp |
|
|
3435 | ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW |
|
|
3436 | { |
|
|
3437 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
1655 | } |
3438 | } |
1656 | |
3439 | |
1657 | #if EV_PERIODIC_ENABLE |
3440 | #if EV_PERIODIC_ENABLE |
1658 | void |
3441 | void noinline |
1659 | ev_periodic_start (EV_P_ ev_periodic *w) |
3442 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
1660 | { |
3443 | { |
1661 | if (expect_false (ev_is_active (w))) |
3444 | if (expect_false (ev_is_active (w))) |
1662 | return; |
3445 | return; |
1663 | |
3446 | |
1664 | if (w->reschedule_cb) |
3447 | if (w->reschedule_cb) |
1665 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
3448 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1666 | else if (w->interval) |
3449 | else if (w->interval) |
1667 | { |
3450 | { |
1668 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
3451 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1669 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
3452 | periodic_recalc (EV_A_ w); |
1670 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
|
|
1671 | } |
3453 | } |
|
|
3454 | else |
|
|
3455 | ev_at (w) = w->offset; |
1672 | |
3456 | |
|
|
3457 | EV_FREQUENT_CHECK; |
|
|
3458 | |
|
|
3459 | ++periodiccnt; |
1673 | ev_start (EV_A_ (W)w, ++periodiccnt); |
3460 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
1674 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
3461 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1675 | periodics [periodiccnt - 1] = w; |
3462 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1676 | upheap ((WT *)periodics, periodiccnt - 1); |
3463 | ANHE_at_cache (periodics [ev_active (w)]); |
|
|
3464 | upheap (periodics, ev_active (w)); |
1677 | |
3465 | |
|
|
3466 | EV_FREQUENT_CHECK; |
|
|
3467 | |
1678 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
3468 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1679 | } |
3469 | } |
1680 | |
3470 | |
1681 | void |
3471 | void noinline |
1682 | ev_periodic_stop (EV_P_ ev_periodic *w) |
3472 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
1683 | { |
3473 | { |
1684 | ev_clear_pending (EV_A_ (W)w); |
3474 | clear_pending (EV_A_ (W)w); |
1685 | if (expect_false (!ev_is_active (w))) |
3475 | if (expect_false (!ev_is_active (w))) |
1686 | return; |
3476 | return; |
1687 | |
3477 | |
1688 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
3478 | EV_FREQUENT_CHECK; |
1689 | |
3479 | |
1690 | { |
3480 | { |
1691 | int active = ((W)w)->active; |
3481 | int active = ev_active (w); |
1692 | |
3482 | |
|
|
3483 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
|
|
3484 | |
|
|
3485 | --periodiccnt; |
|
|
3486 | |
1693 | if (expect_true (--active < --periodiccnt)) |
3487 | if (expect_true (active < periodiccnt + HEAP0)) |
1694 | { |
3488 | { |
1695 | periodics [active] = periodics [periodiccnt]; |
3489 | periodics [active] = periodics [periodiccnt + HEAP0]; |
1696 | adjustheap ((WT *)periodics, periodiccnt, active); |
3490 | adjustheap (periodics, periodiccnt, active); |
1697 | } |
3491 | } |
1698 | } |
3492 | } |
1699 | |
3493 | |
1700 | ev_stop (EV_A_ (W)w); |
3494 | ev_stop (EV_A_ (W)w); |
1701 | } |
|
|
1702 | |
3495 | |
1703 | void |
3496 | EV_FREQUENT_CHECK; |
|
|
3497 | } |
|
|
3498 | |
|
|
3499 | void noinline |
1704 | ev_periodic_again (EV_P_ ev_periodic *w) |
3500 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
1705 | { |
3501 | { |
1706 | /* TODO: use adjustheap and recalculation */ |
3502 | /* TODO: use adjustheap and recalculation */ |
1707 | ev_periodic_stop (EV_A_ w); |
3503 | ev_periodic_stop (EV_A_ w); |
1708 | ev_periodic_start (EV_A_ w); |
3504 | ev_periodic_start (EV_A_ w); |
1709 | } |
3505 | } |
… | |
… | |
1711 | |
3507 | |
1712 | #ifndef SA_RESTART |
3508 | #ifndef SA_RESTART |
1713 | # define SA_RESTART 0 |
3509 | # define SA_RESTART 0 |
1714 | #endif |
3510 | #endif |
1715 | |
3511 | |
1716 | void |
3512 | #if EV_SIGNAL_ENABLE |
|
|
3513 | |
|
|
3514 | void noinline |
1717 | ev_signal_start (EV_P_ ev_signal *w) |
3515 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
1718 | { |
3516 | { |
1719 | #if EV_MULTIPLICITY |
|
|
1720 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1721 | #endif |
|
|
1722 | if (expect_false (ev_is_active (w))) |
3517 | if (expect_false (ev_is_active (w))) |
1723 | return; |
3518 | return; |
1724 | |
3519 | |
1725 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
3520 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
|
|
3521 | |
|
|
3522 | #if EV_MULTIPLICITY |
|
|
3523 | assert (("libev: a signal must not be attached to two different loops", |
|
|
3524 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
|
|
3525 | |
|
|
3526 | signals [w->signum - 1].loop = EV_A; |
|
|
3527 | #endif |
|
|
3528 | |
|
|
3529 | EV_FREQUENT_CHECK; |
|
|
3530 | |
|
|
3531 | #if EV_USE_SIGNALFD |
|
|
3532 | if (sigfd == -2) |
|
|
3533 | { |
|
|
3534 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
|
|
3535 | if (sigfd < 0 && errno == EINVAL) |
|
|
3536 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
|
|
3537 | |
|
|
3538 | if (sigfd >= 0) |
|
|
3539 | { |
|
|
3540 | fd_intern (sigfd); /* doing it twice will not hurt */ |
|
|
3541 | |
|
|
3542 | sigemptyset (&sigfd_set); |
|
|
3543 | |
|
|
3544 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
3545 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
3546 | ev_io_start (EV_A_ &sigfd_w); |
|
|
3547 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
3548 | } |
|
|
3549 | } |
|
|
3550 | |
|
|
3551 | if (sigfd >= 0) |
|
|
3552 | { |
|
|
3553 | /* TODO: check .head */ |
|
|
3554 | sigaddset (&sigfd_set, w->signum); |
|
|
3555 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
3556 | |
|
|
3557 | signalfd (sigfd, &sigfd_set, 0); |
|
|
3558 | } |
|
|
3559 | #endif |
1726 | |
3560 | |
1727 | ev_start (EV_A_ (W)w, 1); |
3561 | ev_start (EV_A_ (W)w, 1); |
1728 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1729 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
3562 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1730 | |
3563 | |
1731 | if (!((WL)w)->next) |
3564 | if (!((WL)w)->next) |
|
|
3565 | # if EV_USE_SIGNALFD |
|
|
3566 | if (sigfd < 0) /*TODO*/ |
|
|
3567 | # endif |
1732 | { |
3568 | { |
1733 | #if _WIN32 |
3569 | # ifdef _WIN32 |
|
|
3570 | evpipe_init (EV_A); |
|
|
3571 | |
1734 | signal (w->signum, sighandler); |
3572 | signal (w->signum, ev_sighandler); |
1735 | #else |
3573 | # else |
1736 | struct sigaction sa; |
3574 | struct sigaction sa; |
|
|
3575 | |
|
|
3576 | evpipe_init (EV_A); |
|
|
3577 | |
1737 | sa.sa_handler = sighandler; |
3578 | sa.sa_handler = ev_sighandler; |
1738 | sigfillset (&sa.sa_mask); |
3579 | sigfillset (&sa.sa_mask); |
1739 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
3580 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1740 | sigaction (w->signum, &sa, 0); |
3581 | sigaction (w->signum, &sa, 0); |
|
|
3582 | |
|
|
3583 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
3584 | { |
|
|
3585 | sigemptyset (&sa.sa_mask); |
|
|
3586 | sigaddset (&sa.sa_mask, w->signum); |
|
|
3587 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
3588 | } |
1741 | #endif |
3589 | #endif |
1742 | } |
3590 | } |
1743 | } |
|
|
1744 | |
3591 | |
1745 | void |
3592 | EV_FREQUENT_CHECK; |
|
|
3593 | } |
|
|
3594 | |
|
|
3595 | void noinline |
1746 | ev_signal_stop (EV_P_ ev_signal *w) |
3596 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
1747 | { |
3597 | { |
1748 | ev_clear_pending (EV_A_ (W)w); |
3598 | clear_pending (EV_A_ (W)w); |
1749 | if (expect_false (!ev_is_active (w))) |
3599 | if (expect_false (!ev_is_active (w))) |
1750 | return; |
3600 | return; |
1751 | |
3601 | |
|
|
3602 | EV_FREQUENT_CHECK; |
|
|
3603 | |
1752 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
3604 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1753 | ev_stop (EV_A_ (W)w); |
3605 | ev_stop (EV_A_ (W)w); |
1754 | |
3606 | |
1755 | if (!signals [w->signum - 1].head) |
3607 | if (!signals [w->signum - 1].head) |
|
|
3608 | { |
|
|
3609 | #if EV_MULTIPLICITY |
|
|
3610 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
3611 | #endif |
|
|
3612 | #if EV_USE_SIGNALFD |
|
|
3613 | if (sigfd >= 0) |
|
|
3614 | { |
|
|
3615 | sigset_t ss; |
|
|
3616 | |
|
|
3617 | sigemptyset (&ss); |
|
|
3618 | sigaddset (&ss, w->signum); |
|
|
3619 | sigdelset (&sigfd_set, w->signum); |
|
|
3620 | |
|
|
3621 | signalfd (sigfd, &sigfd_set, 0); |
|
|
3622 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
3623 | } |
|
|
3624 | else |
|
|
3625 | #endif |
1756 | signal (w->signum, SIG_DFL); |
3626 | signal (w->signum, SIG_DFL); |
|
|
3627 | } |
|
|
3628 | |
|
|
3629 | EV_FREQUENT_CHECK; |
1757 | } |
3630 | } |
|
|
3631 | |
|
|
3632 | #endif |
|
|
3633 | |
|
|
3634 | #if EV_CHILD_ENABLE |
1758 | |
3635 | |
1759 | void |
3636 | void |
1760 | ev_child_start (EV_P_ ev_child *w) |
3637 | ev_child_start (EV_P_ ev_child *w) EV_THROW |
1761 | { |
3638 | { |
1762 | #if EV_MULTIPLICITY |
3639 | #if EV_MULTIPLICITY |
1763 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3640 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1764 | #endif |
3641 | #endif |
1765 | if (expect_false (ev_is_active (w))) |
3642 | if (expect_false (ev_is_active (w))) |
1766 | return; |
3643 | return; |
1767 | |
3644 | |
|
|
3645 | EV_FREQUENT_CHECK; |
|
|
3646 | |
1768 | ev_start (EV_A_ (W)w, 1); |
3647 | ev_start (EV_A_ (W)w, 1); |
1769 | wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
3648 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
|
|
3649 | |
|
|
3650 | EV_FREQUENT_CHECK; |
1770 | } |
3651 | } |
1771 | |
3652 | |
1772 | void |
3653 | void |
1773 | ev_child_stop (EV_P_ ev_child *w) |
3654 | ev_child_stop (EV_P_ ev_child *w) EV_THROW |
1774 | { |
3655 | { |
1775 | ev_clear_pending (EV_A_ (W)w); |
3656 | clear_pending (EV_A_ (W)w); |
1776 | if (expect_false (!ev_is_active (w))) |
3657 | if (expect_false (!ev_is_active (w))) |
1777 | return; |
3658 | return; |
1778 | |
3659 | |
|
|
3660 | EV_FREQUENT_CHECK; |
|
|
3661 | |
1779 | wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
3662 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
1780 | ev_stop (EV_A_ (W)w); |
3663 | ev_stop (EV_A_ (W)w); |
|
|
3664 | |
|
|
3665 | EV_FREQUENT_CHECK; |
1781 | } |
3666 | } |
|
|
3667 | |
|
|
3668 | #endif |
1782 | |
3669 | |
1783 | #if EV_STAT_ENABLE |
3670 | #if EV_STAT_ENABLE |
1784 | |
3671 | |
1785 | # ifdef _WIN32 |
3672 | # ifdef _WIN32 |
1786 | # undef lstat |
3673 | # undef lstat |
1787 | # define lstat(a,b) _stati64 (a,b) |
3674 | # define lstat(a,b) _stati64 (a,b) |
1788 | # endif |
3675 | # endif |
1789 | |
3676 | |
1790 | #define DEF_STAT_INTERVAL 5.0074891 |
3677 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
3678 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
1791 | #define MIN_STAT_INTERVAL 0.1074891 |
3679 | #define MIN_STAT_INTERVAL 0.1074891 |
1792 | |
3680 | |
1793 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
3681 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
1794 | |
3682 | |
1795 | #if EV_USE_INOTIFY |
3683 | #if EV_USE_INOTIFY |
1796 | # define EV_INOTIFY_BUFSIZE 8192 |
3684 | |
|
|
3685 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
3686 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
1797 | |
3687 | |
1798 | static void noinline |
3688 | static void noinline |
1799 | infy_add (EV_P_ ev_stat *w) |
3689 | infy_add (EV_P_ ev_stat *w) |
1800 | { |
3690 | { |
1801 | 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); |
3691 | 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); |
1802 | |
3692 | |
1803 | if (w->wd < 0) |
3693 | if (w->wd >= 0) |
|
|
3694 | { |
|
|
3695 | struct statfs sfs; |
|
|
3696 | |
|
|
3697 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
3698 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
3699 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
3700 | |
|
|
3701 | if (!fs_2625) |
|
|
3702 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3703 | else if (!statfs (w->path, &sfs) |
|
|
3704 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
3705 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
3706 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
3707 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
3708 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
3709 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
3710 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
3711 | else |
|
|
3712 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
1804 | { |
3713 | } |
1805 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
3714 | else |
|
|
3715 | { |
|
|
3716 | /* can't use inotify, continue to stat */ |
|
|
3717 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
1806 | |
3718 | |
1807 | /* monitor some parent directory for speedup hints */ |
3719 | /* if path is not there, monitor some parent directory for speedup hints */ |
|
|
3720 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
|
|
3721 | /* but an efficiency issue only */ |
1808 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
3722 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
1809 | { |
3723 | { |
1810 | char path [4096]; |
3724 | char path [4096]; |
1811 | strcpy (path, w->path); |
3725 | strcpy (path, w->path); |
1812 | |
3726 | |
… | |
… | |
1815 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
3729 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
1816 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
3730 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
1817 | |
3731 | |
1818 | char *pend = strrchr (path, '/'); |
3732 | char *pend = strrchr (path, '/'); |
1819 | |
3733 | |
1820 | if (!pend) |
3734 | if (!pend || pend == path) |
1821 | break; /* whoops, no '/', complain to your admin */ |
3735 | break; |
1822 | |
3736 | |
1823 | *pend = 0; |
3737 | *pend = 0; |
1824 | w->wd = inotify_add_watch (fs_fd, path, mask); |
3738 | w->wd = inotify_add_watch (fs_fd, path, mask); |
1825 | } |
3739 | } |
1826 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
3740 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
1827 | } |
3741 | } |
1828 | } |
3742 | } |
1829 | else |
|
|
1830 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
1831 | |
3743 | |
1832 | if (w->wd >= 0) |
3744 | if (w->wd >= 0) |
1833 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
3745 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
|
|
3746 | |
|
|
3747 | /* now re-arm timer, if required */ |
|
|
3748 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
|
|
3749 | ev_timer_again (EV_A_ &w->timer); |
|
|
3750 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
1834 | } |
3751 | } |
1835 | |
3752 | |
1836 | static void noinline |
3753 | static void noinline |
1837 | infy_del (EV_P_ ev_stat *w) |
3754 | infy_del (EV_P_ ev_stat *w) |
1838 | { |
3755 | { |
… | |
… | |
1841 | |
3758 | |
1842 | if (wd < 0) |
3759 | if (wd < 0) |
1843 | return; |
3760 | return; |
1844 | |
3761 | |
1845 | w->wd = -2; |
3762 | w->wd = -2; |
1846 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
3763 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
1847 | wlist_del (&fs_hash [slot].head, (WL)w); |
3764 | wlist_del (&fs_hash [slot].head, (WL)w); |
1848 | |
3765 | |
1849 | /* remove this watcher, if others are watching it, they will rearm */ |
3766 | /* remove this watcher, if others are watching it, they will rearm */ |
1850 | inotify_rm_watch (fs_fd, wd); |
3767 | inotify_rm_watch (fs_fd, wd); |
1851 | } |
3768 | } |
1852 | |
3769 | |
1853 | static void noinline |
3770 | static void noinline |
1854 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3771 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
1855 | { |
3772 | { |
1856 | if (slot < 0) |
3773 | if (slot < 0) |
1857 | /* overflow, need to check for all hahs slots */ |
3774 | /* overflow, need to check for all hash slots */ |
1858 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3775 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
1859 | infy_wd (EV_A_ slot, wd, ev); |
3776 | infy_wd (EV_A_ slot, wd, ev); |
1860 | else |
3777 | else |
1861 | { |
3778 | { |
1862 | WL w_; |
3779 | WL w_; |
1863 | |
3780 | |
1864 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
3781 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
1865 | { |
3782 | { |
1866 | ev_stat *w = (ev_stat *)w_; |
3783 | ev_stat *w = (ev_stat *)w_; |
1867 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
3784 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
1868 | |
3785 | |
1869 | if (w->wd == wd || wd == -1) |
3786 | if (w->wd == wd || wd == -1) |
1870 | { |
3787 | { |
1871 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
3788 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
1872 | { |
3789 | { |
|
|
3790 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
1873 | w->wd = -1; |
3791 | w->wd = -1; |
1874 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3792 | infy_add (EV_A_ w); /* re-add, no matter what */ |
1875 | } |
3793 | } |
1876 | |
3794 | |
1877 | stat_timer_cb (EV_A_ &w->timer, 0); |
3795 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
1882 | |
3800 | |
1883 | static void |
3801 | static void |
1884 | infy_cb (EV_P_ ev_io *w, int revents) |
3802 | infy_cb (EV_P_ ev_io *w, int revents) |
1885 | { |
3803 | { |
1886 | char buf [EV_INOTIFY_BUFSIZE]; |
3804 | char buf [EV_INOTIFY_BUFSIZE]; |
1887 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
1888 | int ofs; |
3805 | int ofs; |
1889 | int len = read (fs_fd, buf, sizeof (buf)); |
3806 | int len = read (fs_fd, buf, sizeof (buf)); |
1890 | |
3807 | |
1891 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
3808 | for (ofs = 0; ofs < len; ) |
|
|
3809 | { |
|
|
3810 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
1892 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3811 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3812 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3813 | } |
1893 | } |
3814 | } |
1894 | |
3815 | |
1895 | void inline_size |
3816 | inline_size void ecb_cold |
|
|
3817 | ev_check_2625 (EV_P) |
|
|
3818 | { |
|
|
3819 | /* kernels < 2.6.25 are borked |
|
|
3820 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
3821 | */ |
|
|
3822 | if (ev_linux_version () < 0x020619) |
|
|
3823 | return; |
|
|
3824 | |
|
|
3825 | fs_2625 = 1; |
|
|
3826 | } |
|
|
3827 | |
|
|
3828 | inline_size int |
|
|
3829 | infy_newfd (void) |
|
|
3830 | { |
|
|
3831 | #if defined IN_CLOEXEC && defined IN_NONBLOCK |
|
|
3832 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3833 | if (fd >= 0) |
|
|
3834 | return fd; |
|
|
3835 | #endif |
|
|
3836 | return inotify_init (); |
|
|
3837 | } |
|
|
3838 | |
|
|
3839 | inline_size void |
1896 | infy_init (EV_P) |
3840 | infy_init (EV_P) |
1897 | { |
3841 | { |
1898 | if (fs_fd != -2) |
3842 | if (fs_fd != -2) |
1899 | return; |
3843 | return; |
1900 | |
3844 | |
|
|
3845 | fs_fd = -1; |
|
|
3846 | |
|
|
3847 | ev_check_2625 (EV_A); |
|
|
3848 | |
1901 | fs_fd = inotify_init (); |
3849 | fs_fd = infy_newfd (); |
1902 | |
3850 | |
1903 | if (fs_fd >= 0) |
3851 | if (fs_fd >= 0) |
1904 | { |
3852 | { |
|
|
3853 | fd_intern (fs_fd); |
1905 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3854 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
1906 | ev_set_priority (&fs_w, EV_MAXPRI); |
3855 | ev_set_priority (&fs_w, EV_MAXPRI); |
1907 | ev_io_start (EV_A_ &fs_w); |
3856 | ev_io_start (EV_A_ &fs_w); |
|
|
3857 | ev_unref (EV_A); |
1908 | } |
3858 | } |
1909 | } |
3859 | } |
1910 | |
3860 | |
1911 | void inline_size |
3861 | inline_size void |
1912 | infy_fork (EV_P) |
3862 | infy_fork (EV_P) |
1913 | { |
3863 | { |
1914 | int slot; |
3864 | int slot; |
1915 | |
3865 | |
1916 | if (fs_fd < 0) |
3866 | if (fs_fd < 0) |
1917 | return; |
3867 | return; |
1918 | |
3868 | |
|
|
3869 | ev_ref (EV_A); |
|
|
3870 | ev_io_stop (EV_A_ &fs_w); |
1919 | close (fs_fd); |
3871 | close (fs_fd); |
1920 | fs_fd = inotify_init (); |
3872 | fs_fd = infy_newfd (); |
1921 | |
3873 | |
|
|
3874 | if (fs_fd >= 0) |
|
|
3875 | { |
|
|
3876 | fd_intern (fs_fd); |
|
|
3877 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3878 | ev_io_start (EV_A_ &fs_w); |
|
|
3879 | ev_unref (EV_A); |
|
|
3880 | } |
|
|
3881 | |
1922 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3882 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
1923 | { |
3883 | { |
1924 | WL w_ = fs_hash [slot].head; |
3884 | WL w_ = fs_hash [slot].head; |
1925 | fs_hash [slot].head = 0; |
3885 | fs_hash [slot].head = 0; |
1926 | |
3886 | |
1927 | while (w_) |
3887 | while (w_) |
… | |
… | |
1932 | w->wd = -1; |
3892 | w->wd = -1; |
1933 | |
3893 | |
1934 | if (fs_fd >= 0) |
3894 | if (fs_fd >= 0) |
1935 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3895 | infy_add (EV_A_ w); /* re-add, no matter what */ |
1936 | else |
3896 | else |
|
|
3897 | { |
|
|
3898 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3899 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
1937 | ev_timer_start (EV_A_ &w->timer); |
3900 | ev_timer_again (EV_A_ &w->timer); |
|
|
3901 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3902 | } |
1938 | } |
3903 | } |
1939 | |
|
|
1940 | } |
3904 | } |
1941 | } |
3905 | } |
1942 | |
3906 | |
|
|
3907 | #endif |
|
|
3908 | |
|
|
3909 | #ifdef _WIN32 |
|
|
3910 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
3911 | #else |
|
|
3912 | # define EV_LSTAT(p,b) lstat (p, b) |
1943 | #endif |
3913 | #endif |
1944 | |
3914 | |
1945 | void |
3915 | void |
1946 | ev_stat_stat (EV_P_ ev_stat *w) |
3916 | ev_stat_stat (EV_P_ ev_stat *w) EV_THROW |
1947 | { |
3917 | { |
1948 | if (lstat (w->path, &w->attr) < 0) |
3918 | if (lstat (w->path, &w->attr) < 0) |
1949 | w->attr.st_nlink = 0; |
3919 | w->attr.st_nlink = 0; |
1950 | else if (!w->attr.st_nlink) |
3920 | else if (!w->attr.st_nlink) |
1951 | w->attr.st_nlink = 1; |
3921 | w->attr.st_nlink = 1; |
… | |
… | |
1954 | static void noinline |
3924 | static void noinline |
1955 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3925 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
1956 | { |
3926 | { |
1957 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3927 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
1958 | |
3928 | |
1959 | /* we copy this here each the time so that */ |
3929 | ev_statdata prev = w->attr; |
1960 | /* prev has the old value when the callback gets invoked */ |
|
|
1961 | w->prev = w->attr; |
|
|
1962 | ev_stat_stat (EV_A_ w); |
3930 | ev_stat_stat (EV_A_ w); |
1963 | |
3931 | |
1964 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3932 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
1965 | if ( |
3933 | if ( |
1966 | w->prev.st_dev != w->attr.st_dev |
3934 | prev.st_dev != w->attr.st_dev |
1967 | || w->prev.st_ino != w->attr.st_ino |
3935 | || prev.st_ino != w->attr.st_ino |
1968 | || w->prev.st_mode != w->attr.st_mode |
3936 | || prev.st_mode != w->attr.st_mode |
1969 | || w->prev.st_nlink != w->attr.st_nlink |
3937 | || prev.st_nlink != w->attr.st_nlink |
1970 | || w->prev.st_uid != w->attr.st_uid |
3938 | || prev.st_uid != w->attr.st_uid |
1971 | || w->prev.st_gid != w->attr.st_gid |
3939 | || prev.st_gid != w->attr.st_gid |
1972 | || w->prev.st_rdev != w->attr.st_rdev |
3940 | || prev.st_rdev != w->attr.st_rdev |
1973 | || w->prev.st_size != w->attr.st_size |
3941 | || prev.st_size != w->attr.st_size |
1974 | || w->prev.st_atime != w->attr.st_atime |
3942 | || prev.st_atime != w->attr.st_atime |
1975 | || w->prev.st_mtime != w->attr.st_mtime |
3943 | || prev.st_mtime != w->attr.st_mtime |
1976 | || w->prev.st_ctime != w->attr.st_ctime |
3944 | || prev.st_ctime != w->attr.st_ctime |
1977 | ) { |
3945 | ) { |
|
|
3946 | /* we only update w->prev on actual differences */ |
|
|
3947 | /* in case we test more often than invoke the callback, */ |
|
|
3948 | /* to ensure that prev is always different to attr */ |
|
|
3949 | w->prev = prev; |
|
|
3950 | |
1978 | #if EV_USE_INOTIFY |
3951 | #if EV_USE_INOTIFY |
|
|
3952 | if (fs_fd >= 0) |
|
|
3953 | { |
1979 | infy_del (EV_A_ w); |
3954 | infy_del (EV_A_ w); |
1980 | infy_add (EV_A_ w); |
3955 | infy_add (EV_A_ w); |
1981 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
3956 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
3957 | } |
1982 | #endif |
3958 | #endif |
1983 | |
3959 | |
1984 | ev_feed_event (EV_A_ w, EV_STAT); |
3960 | ev_feed_event (EV_A_ w, EV_STAT); |
1985 | } |
3961 | } |
1986 | } |
3962 | } |
1987 | |
3963 | |
1988 | void |
3964 | void |
1989 | ev_stat_start (EV_P_ ev_stat *w) |
3965 | ev_stat_start (EV_P_ ev_stat *w) EV_THROW |
1990 | { |
3966 | { |
1991 | if (expect_false (ev_is_active (w))) |
3967 | if (expect_false (ev_is_active (w))) |
1992 | return; |
3968 | return; |
1993 | |
3969 | |
1994 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
1995 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
1996 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
1997 | |
|
|
1998 | ev_stat_stat (EV_A_ w); |
3970 | ev_stat_stat (EV_A_ w); |
1999 | |
3971 | |
|
|
3972 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2000 | if (w->interval < MIN_STAT_INTERVAL) |
3973 | w->interval = MIN_STAT_INTERVAL; |
2001 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2002 | |
3974 | |
2003 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
3975 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2004 | ev_set_priority (&w->timer, ev_priority (w)); |
3976 | ev_set_priority (&w->timer, ev_priority (w)); |
2005 | |
3977 | |
2006 | #if EV_USE_INOTIFY |
3978 | #if EV_USE_INOTIFY |
2007 | infy_init (EV_A); |
3979 | infy_init (EV_A); |
2008 | |
3980 | |
2009 | if (fs_fd >= 0) |
3981 | if (fs_fd >= 0) |
2010 | infy_add (EV_A_ w); |
3982 | infy_add (EV_A_ w); |
2011 | else |
3983 | else |
2012 | #endif |
3984 | #endif |
|
|
3985 | { |
2013 | ev_timer_start (EV_A_ &w->timer); |
3986 | ev_timer_again (EV_A_ &w->timer); |
|
|
3987 | ev_unref (EV_A); |
|
|
3988 | } |
2014 | |
3989 | |
2015 | ev_start (EV_A_ (W)w, 1); |
3990 | ev_start (EV_A_ (W)w, 1); |
|
|
3991 | |
|
|
3992 | EV_FREQUENT_CHECK; |
2016 | } |
3993 | } |
2017 | |
3994 | |
2018 | void |
3995 | void |
2019 | ev_stat_stop (EV_P_ ev_stat *w) |
3996 | ev_stat_stop (EV_P_ ev_stat *w) EV_THROW |
2020 | { |
3997 | { |
2021 | ev_clear_pending (EV_A_ (W)w); |
3998 | clear_pending (EV_A_ (W)w); |
2022 | if (expect_false (!ev_is_active (w))) |
3999 | if (expect_false (!ev_is_active (w))) |
2023 | return; |
4000 | return; |
2024 | |
4001 | |
|
|
4002 | EV_FREQUENT_CHECK; |
|
|
4003 | |
2025 | #if EV_USE_INOTIFY |
4004 | #if EV_USE_INOTIFY |
2026 | infy_del (EV_A_ w); |
4005 | infy_del (EV_A_ w); |
2027 | #endif |
4006 | #endif |
|
|
4007 | |
|
|
4008 | if (ev_is_active (&w->timer)) |
|
|
4009 | { |
|
|
4010 | ev_ref (EV_A); |
2028 | ev_timer_stop (EV_A_ &w->timer); |
4011 | ev_timer_stop (EV_A_ &w->timer); |
|
|
4012 | } |
2029 | |
4013 | |
2030 | ev_stop (EV_A_ (W)w); |
4014 | ev_stop (EV_A_ (W)w); |
|
|
4015 | |
|
|
4016 | EV_FREQUENT_CHECK; |
2031 | } |
4017 | } |
2032 | #endif |
4018 | #endif |
2033 | |
4019 | |
2034 | #if EV_IDLE_ENABLE |
4020 | #if EV_IDLE_ENABLE |
2035 | void |
4021 | void |
2036 | ev_idle_start (EV_P_ ev_idle *w) |
4022 | ev_idle_start (EV_P_ ev_idle *w) EV_THROW |
2037 | { |
4023 | { |
2038 | if (expect_false (ev_is_active (w))) |
4024 | if (expect_false (ev_is_active (w))) |
2039 | return; |
4025 | return; |
2040 | |
4026 | |
2041 | pri_adjust (EV_A_ (W)w); |
4027 | pri_adjust (EV_A_ (W)w); |
|
|
4028 | |
|
|
4029 | EV_FREQUENT_CHECK; |
2042 | |
4030 | |
2043 | { |
4031 | { |
2044 | int active = ++idlecnt [ABSPRI (w)]; |
4032 | int active = ++idlecnt [ABSPRI (w)]; |
2045 | |
4033 | |
2046 | ++idleall; |
4034 | ++idleall; |
2047 | ev_start (EV_A_ (W)w, active); |
4035 | ev_start (EV_A_ (W)w, active); |
2048 | |
4036 | |
2049 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
4037 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2050 | idles [ABSPRI (w)][active - 1] = w; |
4038 | idles [ABSPRI (w)][active - 1] = w; |
2051 | } |
4039 | } |
|
|
4040 | |
|
|
4041 | EV_FREQUENT_CHECK; |
2052 | } |
4042 | } |
2053 | |
4043 | |
2054 | void |
4044 | void |
2055 | ev_idle_stop (EV_P_ ev_idle *w) |
4045 | ev_idle_stop (EV_P_ ev_idle *w) EV_THROW |
2056 | { |
4046 | { |
2057 | ev_clear_pending (EV_A_ (W)w); |
4047 | clear_pending (EV_A_ (W)w); |
2058 | if (expect_false (!ev_is_active (w))) |
4048 | if (expect_false (!ev_is_active (w))) |
2059 | return; |
4049 | return; |
2060 | |
4050 | |
|
|
4051 | EV_FREQUENT_CHECK; |
|
|
4052 | |
2061 | { |
4053 | { |
2062 | int active = ((W)w)->active; |
4054 | int active = ev_active (w); |
2063 | |
4055 | |
2064 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
4056 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2065 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
4057 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2066 | |
4058 | |
2067 | ev_stop (EV_A_ (W)w); |
4059 | ev_stop (EV_A_ (W)w); |
2068 | --idleall; |
4060 | --idleall; |
2069 | } |
4061 | } |
2070 | } |
|
|
2071 | #endif |
|
|
2072 | |
4062 | |
|
|
4063 | EV_FREQUENT_CHECK; |
|
|
4064 | } |
|
|
4065 | #endif |
|
|
4066 | |
|
|
4067 | #if EV_PREPARE_ENABLE |
2073 | void |
4068 | void |
2074 | ev_prepare_start (EV_P_ ev_prepare *w) |
4069 | ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW |
2075 | { |
4070 | { |
2076 | if (expect_false (ev_is_active (w))) |
4071 | if (expect_false (ev_is_active (w))) |
2077 | return; |
4072 | return; |
|
|
4073 | |
|
|
4074 | EV_FREQUENT_CHECK; |
2078 | |
4075 | |
2079 | ev_start (EV_A_ (W)w, ++preparecnt); |
4076 | ev_start (EV_A_ (W)w, ++preparecnt); |
2080 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
4077 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2081 | prepares [preparecnt - 1] = w; |
4078 | prepares [preparecnt - 1] = w; |
|
|
4079 | |
|
|
4080 | EV_FREQUENT_CHECK; |
2082 | } |
4081 | } |
2083 | |
4082 | |
2084 | void |
4083 | void |
2085 | ev_prepare_stop (EV_P_ ev_prepare *w) |
4084 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW |
2086 | { |
4085 | { |
2087 | ev_clear_pending (EV_A_ (W)w); |
4086 | clear_pending (EV_A_ (W)w); |
2088 | if (expect_false (!ev_is_active (w))) |
4087 | if (expect_false (!ev_is_active (w))) |
2089 | return; |
4088 | return; |
2090 | |
4089 | |
|
|
4090 | EV_FREQUENT_CHECK; |
|
|
4091 | |
2091 | { |
4092 | { |
2092 | int active = ((W)w)->active; |
4093 | int active = ev_active (w); |
|
|
4094 | |
2093 | prepares [active - 1] = prepares [--preparecnt]; |
4095 | prepares [active - 1] = prepares [--preparecnt]; |
2094 | ((W)prepares [active - 1])->active = active; |
4096 | ev_active (prepares [active - 1]) = active; |
2095 | } |
4097 | } |
2096 | |
4098 | |
2097 | ev_stop (EV_A_ (W)w); |
4099 | ev_stop (EV_A_ (W)w); |
2098 | } |
|
|
2099 | |
4100 | |
|
|
4101 | EV_FREQUENT_CHECK; |
|
|
4102 | } |
|
|
4103 | #endif |
|
|
4104 | |
|
|
4105 | #if EV_CHECK_ENABLE |
2100 | void |
4106 | void |
2101 | ev_check_start (EV_P_ ev_check *w) |
4107 | ev_check_start (EV_P_ ev_check *w) EV_THROW |
2102 | { |
4108 | { |
2103 | if (expect_false (ev_is_active (w))) |
4109 | if (expect_false (ev_is_active (w))) |
2104 | return; |
4110 | return; |
|
|
4111 | |
|
|
4112 | EV_FREQUENT_CHECK; |
2105 | |
4113 | |
2106 | ev_start (EV_A_ (W)w, ++checkcnt); |
4114 | ev_start (EV_A_ (W)w, ++checkcnt); |
2107 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
4115 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2108 | checks [checkcnt - 1] = w; |
4116 | checks [checkcnt - 1] = w; |
|
|
4117 | |
|
|
4118 | EV_FREQUENT_CHECK; |
2109 | } |
4119 | } |
2110 | |
4120 | |
2111 | void |
4121 | void |
2112 | ev_check_stop (EV_P_ ev_check *w) |
4122 | ev_check_stop (EV_P_ ev_check *w) EV_THROW |
2113 | { |
4123 | { |
2114 | ev_clear_pending (EV_A_ (W)w); |
4124 | clear_pending (EV_A_ (W)w); |
2115 | if (expect_false (!ev_is_active (w))) |
4125 | if (expect_false (!ev_is_active (w))) |
2116 | return; |
4126 | return; |
2117 | |
4127 | |
|
|
4128 | EV_FREQUENT_CHECK; |
|
|
4129 | |
2118 | { |
4130 | { |
2119 | int active = ((W)w)->active; |
4131 | int active = ev_active (w); |
|
|
4132 | |
2120 | checks [active - 1] = checks [--checkcnt]; |
4133 | checks [active - 1] = checks [--checkcnt]; |
2121 | ((W)checks [active - 1])->active = active; |
4134 | ev_active (checks [active - 1]) = active; |
2122 | } |
4135 | } |
2123 | |
4136 | |
2124 | ev_stop (EV_A_ (W)w); |
4137 | ev_stop (EV_A_ (W)w); |
|
|
4138 | |
|
|
4139 | EV_FREQUENT_CHECK; |
2125 | } |
4140 | } |
|
|
4141 | #endif |
2126 | |
4142 | |
2127 | #if EV_EMBED_ENABLE |
4143 | #if EV_EMBED_ENABLE |
2128 | void noinline |
4144 | void noinline |
2129 | ev_embed_sweep (EV_P_ ev_embed *w) |
4145 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
2130 | { |
4146 | { |
2131 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
4147 | ev_run (w->other, EVRUN_NOWAIT); |
2132 | } |
4148 | } |
2133 | |
4149 | |
2134 | static void |
4150 | static void |
2135 | embed_cb (EV_P_ ev_io *io, int revents) |
4151 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2136 | { |
4152 | { |
2137 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
4153 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2138 | |
4154 | |
2139 | if (ev_cb (w)) |
4155 | if (ev_cb (w)) |
2140 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
4156 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2141 | else |
4157 | else |
2142 | ev_embed_sweep (loop, w); |
4158 | ev_run (w->other, EVRUN_NOWAIT); |
2143 | } |
4159 | } |
|
|
4160 | |
|
|
4161 | static void |
|
|
4162 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
4163 | { |
|
|
4164 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
4165 | |
|
|
4166 | { |
|
|
4167 | EV_P = w->other; |
|
|
4168 | |
|
|
4169 | while (fdchangecnt) |
|
|
4170 | { |
|
|
4171 | fd_reify (EV_A); |
|
|
4172 | ev_run (EV_A_ EVRUN_NOWAIT); |
|
|
4173 | } |
|
|
4174 | } |
|
|
4175 | } |
|
|
4176 | |
|
|
4177 | static void |
|
|
4178 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
4179 | { |
|
|
4180 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
4181 | |
|
|
4182 | ev_embed_stop (EV_A_ w); |
|
|
4183 | |
|
|
4184 | { |
|
|
4185 | EV_P = w->other; |
|
|
4186 | |
|
|
4187 | ev_loop_fork (EV_A); |
|
|
4188 | ev_run (EV_A_ EVRUN_NOWAIT); |
|
|
4189 | } |
|
|
4190 | |
|
|
4191 | ev_embed_start (EV_A_ w); |
|
|
4192 | } |
|
|
4193 | |
|
|
4194 | #if 0 |
|
|
4195 | static void |
|
|
4196 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
4197 | { |
|
|
4198 | ev_idle_stop (EV_A_ idle); |
|
|
4199 | } |
|
|
4200 | #endif |
2144 | |
4201 | |
2145 | void |
4202 | void |
2146 | ev_embed_start (EV_P_ ev_embed *w) |
4203 | ev_embed_start (EV_P_ ev_embed *w) EV_THROW |
2147 | { |
4204 | { |
2148 | if (expect_false (ev_is_active (w))) |
4205 | if (expect_false (ev_is_active (w))) |
2149 | return; |
4206 | return; |
2150 | |
4207 | |
2151 | { |
4208 | { |
2152 | struct ev_loop *loop = w->loop; |
4209 | EV_P = w->other; |
2153 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
4210 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2154 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
4211 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2155 | } |
4212 | } |
|
|
4213 | |
|
|
4214 | EV_FREQUENT_CHECK; |
2156 | |
4215 | |
2157 | ev_set_priority (&w->io, ev_priority (w)); |
4216 | ev_set_priority (&w->io, ev_priority (w)); |
2158 | ev_io_start (EV_A_ &w->io); |
4217 | ev_io_start (EV_A_ &w->io); |
2159 | |
4218 | |
|
|
4219 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
4220 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
4221 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
4222 | |
|
|
4223 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
4224 | ev_fork_start (EV_A_ &w->fork); |
|
|
4225 | |
|
|
4226 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
4227 | |
2160 | ev_start (EV_A_ (W)w, 1); |
4228 | ev_start (EV_A_ (W)w, 1); |
|
|
4229 | |
|
|
4230 | EV_FREQUENT_CHECK; |
2161 | } |
4231 | } |
2162 | |
4232 | |
2163 | void |
4233 | void |
2164 | ev_embed_stop (EV_P_ ev_embed *w) |
4234 | ev_embed_stop (EV_P_ ev_embed *w) EV_THROW |
2165 | { |
4235 | { |
2166 | ev_clear_pending (EV_A_ (W)w); |
4236 | clear_pending (EV_A_ (W)w); |
2167 | if (expect_false (!ev_is_active (w))) |
4237 | if (expect_false (!ev_is_active (w))) |
2168 | return; |
4238 | return; |
2169 | |
4239 | |
|
|
4240 | EV_FREQUENT_CHECK; |
|
|
4241 | |
2170 | ev_io_stop (EV_A_ &w->io); |
4242 | ev_io_stop (EV_A_ &w->io); |
|
|
4243 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
4244 | ev_fork_stop (EV_A_ &w->fork); |
2171 | |
4245 | |
2172 | ev_stop (EV_A_ (W)w); |
4246 | ev_stop (EV_A_ (W)w); |
|
|
4247 | |
|
|
4248 | EV_FREQUENT_CHECK; |
2173 | } |
4249 | } |
2174 | #endif |
4250 | #endif |
2175 | |
4251 | |
2176 | #if EV_FORK_ENABLE |
4252 | #if EV_FORK_ENABLE |
2177 | void |
4253 | void |
2178 | ev_fork_start (EV_P_ ev_fork *w) |
4254 | ev_fork_start (EV_P_ ev_fork *w) EV_THROW |
2179 | { |
4255 | { |
2180 | if (expect_false (ev_is_active (w))) |
4256 | if (expect_false (ev_is_active (w))) |
2181 | return; |
4257 | return; |
|
|
4258 | |
|
|
4259 | EV_FREQUENT_CHECK; |
2182 | |
4260 | |
2183 | ev_start (EV_A_ (W)w, ++forkcnt); |
4261 | ev_start (EV_A_ (W)w, ++forkcnt); |
2184 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
4262 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2185 | forks [forkcnt - 1] = w; |
4263 | forks [forkcnt - 1] = w; |
|
|
4264 | |
|
|
4265 | EV_FREQUENT_CHECK; |
2186 | } |
4266 | } |
2187 | |
4267 | |
2188 | void |
4268 | void |
2189 | ev_fork_stop (EV_P_ ev_fork *w) |
4269 | ev_fork_stop (EV_P_ ev_fork *w) EV_THROW |
2190 | { |
4270 | { |
2191 | ev_clear_pending (EV_A_ (W)w); |
4271 | clear_pending (EV_A_ (W)w); |
2192 | if (expect_false (!ev_is_active (w))) |
4272 | if (expect_false (!ev_is_active (w))) |
2193 | return; |
4273 | return; |
2194 | |
4274 | |
|
|
4275 | EV_FREQUENT_CHECK; |
|
|
4276 | |
2195 | { |
4277 | { |
2196 | int active = ((W)w)->active; |
4278 | int active = ev_active (w); |
|
|
4279 | |
2197 | forks [active - 1] = forks [--forkcnt]; |
4280 | forks [active - 1] = forks [--forkcnt]; |
2198 | ((W)forks [active - 1])->active = active; |
4281 | ev_active (forks [active - 1]) = active; |
2199 | } |
4282 | } |
2200 | |
4283 | |
2201 | ev_stop (EV_A_ (W)w); |
4284 | ev_stop (EV_A_ (W)w); |
|
|
4285 | |
|
|
4286 | EV_FREQUENT_CHECK; |
|
|
4287 | } |
|
|
4288 | #endif |
|
|
4289 | |
|
|
4290 | #if EV_CLEANUP_ENABLE |
|
|
4291 | void |
|
|
4292 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW |
|
|
4293 | { |
|
|
4294 | if (expect_false (ev_is_active (w))) |
|
|
4295 | return; |
|
|
4296 | |
|
|
4297 | EV_FREQUENT_CHECK; |
|
|
4298 | |
|
|
4299 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
4300 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
|
|
4301 | cleanups [cleanupcnt - 1] = w; |
|
|
4302 | |
|
|
4303 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
4304 | ev_unref (EV_A); |
|
|
4305 | EV_FREQUENT_CHECK; |
|
|
4306 | } |
|
|
4307 | |
|
|
4308 | void |
|
|
4309 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW |
|
|
4310 | { |
|
|
4311 | clear_pending (EV_A_ (W)w); |
|
|
4312 | if (expect_false (!ev_is_active (w))) |
|
|
4313 | return; |
|
|
4314 | |
|
|
4315 | EV_FREQUENT_CHECK; |
|
|
4316 | ev_ref (EV_A); |
|
|
4317 | |
|
|
4318 | { |
|
|
4319 | int active = ev_active (w); |
|
|
4320 | |
|
|
4321 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
4322 | ev_active (cleanups [active - 1]) = active; |
|
|
4323 | } |
|
|
4324 | |
|
|
4325 | ev_stop (EV_A_ (W)w); |
|
|
4326 | |
|
|
4327 | EV_FREQUENT_CHECK; |
|
|
4328 | } |
|
|
4329 | #endif |
|
|
4330 | |
|
|
4331 | #if EV_ASYNC_ENABLE |
|
|
4332 | void |
|
|
4333 | ev_async_start (EV_P_ ev_async *w) EV_THROW |
|
|
4334 | { |
|
|
4335 | if (expect_false (ev_is_active (w))) |
|
|
4336 | return; |
|
|
4337 | |
|
|
4338 | w->sent = 0; |
|
|
4339 | |
|
|
4340 | evpipe_init (EV_A); |
|
|
4341 | |
|
|
4342 | EV_FREQUENT_CHECK; |
|
|
4343 | |
|
|
4344 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
4345 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
4346 | asyncs [asynccnt - 1] = w; |
|
|
4347 | |
|
|
4348 | EV_FREQUENT_CHECK; |
|
|
4349 | } |
|
|
4350 | |
|
|
4351 | void |
|
|
4352 | ev_async_stop (EV_P_ ev_async *w) EV_THROW |
|
|
4353 | { |
|
|
4354 | clear_pending (EV_A_ (W)w); |
|
|
4355 | if (expect_false (!ev_is_active (w))) |
|
|
4356 | return; |
|
|
4357 | |
|
|
4358 | EV_FREQUENT_CHECK; |
|
|
4359 | |
|
|
4360 | { |
|
|
4361 | int active = ev_active (w); |
|
|
4362 | |
|
|
4363 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
4364 | ev_active (asyncs [active - 1]) = active; |
|
|
4365 | } |
|
|
4366 | |
|
|
4367 | ev_stop (EV_A_ (W)w); |
|
|
4368 | |
|
|
4369 | EV_FREQUENT_CHECK; |
|
|
4370 | } |
|
|
4371 | |
|
|
4372 | void |
|
|
4373 | ev_async_send (EV_P_ ev_async *w) EV_THROW |
|
|
4374 | { |
|
|
4375 | w->sent = 1; |
|
|
4376 | evpipe_write (EV_A_ &async_pending); |
2202 | } |
4377 | } |
2203 | #endif |
4378 | #endif |
2204 | |
4379 | |
2205 | /*****************************************************************************/ |
4380 | /*****************************************************************************/ |
2206 | |
4381 | |
… | |
… | |
2216 | once_cb (EV_P_ struct ev_once *once, int revents) |
4391 | once_cb (EV_P_ struct ev_once *once, int revents) |
2217 | { |
4392 | { |
2218 | void (*cb)(int revents, void *arg) = once->cb; |
4393 | void (*cb)(int revents, void *arg) = once->cb; |
2219 | void *arg = once->arg; |
4394 | void *arg = once->arg; |
2220 | |
4395 | |
2221 | ev_io_stop (EV_A_ &once->io); |
4396 | ev_io_stop (EV_A_ &once->io); |
2222 | ev_timer_stop (EV_A_ &once->to); |
4397 | ev_timer_stop (EV_A_ &once->to); |
2223 | ev_free (once); |
4398 | ev_free (once); |
2224 | |
4399 | |
2225 | cb (revents, arg); |
4400 | cb (revents, arg); |
2226 | } |
4401 | } |
2227 | |
4402 | |
2228 | static void |
4403 | static void |
2229 | once_cb_io (EV_P_ ev_io *w, int revents) |
4404 | once_cb_io (EV_P_ ev_io *w, int revents) |
2230 | { |
4405 | { |
2231 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
4406 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
4407 | |
|
|
4408 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2232 | } |
4409 | } |
2233 | |
4410 | |
2234 | static void |
4411 | static void |
2235 | once_cb_to (EV_P_ ev_timer *w, int revents) |
4412 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2236 | { |
4413 | { |
2237 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
4414 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
4415 | |
|
|
4416 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2238 | } |
4417 | } |
2239 | |
4418 | |
2240 | void |
4419 | void |
2241 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
4420 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW |
2242 | { |
4421 | { |
2243 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4422 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
2244 | |
4423 | |
2245 | if (expect_false (!once)) |
4424 | if (expect_false (!once)) |
2246 | { |
4425 | { |
2247 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
4426 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
2248 | return; |
4427 | return; |
2249 | } |
4428 | } |
2250 | |
4429 | |
2251 | once->cb = cb; |
4430 | once->cb = cb; |
2252 | once->arg = arg; |
4431 | once->arg = arg; |
… | |
… | |
2264 | ev_timer_set (&once->to, timeout, 0.); |
4443 | ev_timer_set (&once->to, timeout, 0.); |
2265 | ev_timer_start (EV_A_ &once->to); |
4444 | ev_timer_start (EV_A_ &once->to); |
2266 | } |
4445 | } |
2267 | } |
4446 | } |
2268 | |
4447 | |
2269 | #ifdef __cplusplus |
4448 | /*****************************************************************************/ |
2270 | } |
4449 | |
|
|
4450 | #if EV_WALK_ENABLE |
|
|
4451 | void ecb_cold |
|
|
4452 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
|
|
4453 | { |
|
|
4454 | int i, j; |
|
|
4455 | ev_watcher_list *wl, *wn; |
|
|
4456 | |
|
|
4457 | if (types & (EV_IO | EV_EMBED)) |
|
|
4458 | for (i = 0; i < anfdmax; ++i) |
|
|
4459 | for (wl = anfds [i].head; wl; ) |
|
|
4460 | { |
|
|
4461 | wn = wl->next; |
|
|
4462 | |
|
|
4463 | #if EV_EMBED_ENABLE |
|
|
4464 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
4465 | { |
|
|
4466 | if (types & EV_EMBED) |
|
|
4467 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
4468 | } |
|
|
4469 | else |
|
|
4470 | #endif |
|
|
4471 | #if EV_USE_INOTIFY |
|
|
4472 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
4473 | ; |
|
|
4474 | else |
|
|
4475 | #endif |
|
|
4476 | if ((ev_io *)wl != &pipe_w) |
|
|
4477 | if (types & EV_IO) |
|
|
4478 | cb (EV_A_ EV_IO, wl); |
|
|
4479 | |
|
|
4480 | wl = wn; |
|
|
4481 | } |
|
|
4482 | |
|
|
4483 | if (types & (EV_TIMER | EV_STAT)) |
|
|
4484 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
4485 | #if EV_STAT_ENABLE |
|
|
4486 | /*TODO: timer is not always active*/ |
|
|
4487 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
4488 | { |
|
|
4489 | if (types & EV_STAT) |
|
|
4490 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
4491 | } |
|
|
4492 | else |
|
|
4493 | #endif |
|
|
4494 | if (types & EV_TIMER) |
|
|
4495 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
4496 | |
|
|
4497 | #if EV_PERIODIC_ENABLE |
|
|
4498 | if (types & EV_PERIODIC) |
|
|
4499 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
4500 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
4501 | #endif |
|
|
4502 | |
|
|
4503 | #if EV_IDLE_ENABLE |
|
|
4504 | if (types & EV_IDLE) |
|
|
4505 | for (j = NUMPRI; j--; ) |
|
|
4506 | for (i = idlecnt [j]; i--; ) |
|
|
4507 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
4508 | #endif |
|
|
4509 | |
|
|
4510 | #if EV_FORK_ENABLE |
|
|
4511 | if (types & EV_FORK) |
|
|
4512 | for (i = forkcnt; i--; ) |
|
|
4513 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
4514 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
4515 | #endif |
|
|
4516 | |
|
|
4517 | #if EV_ASYNC_ENABLE |
|
|
4518 | if (types & EV_ASYNC) |
|
|
4519 | for (i = asynccnt; i--; ) |
|
|
4520 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
4521 | #endif |
|
|
4522 | |
|
|
4523 | #if EV_PREPARE_ENABLE |
|
|
4524 | if (types & EV_PREPARE) |
|
|
4525 | for (i = preparecnt; i--; ) |
|
|
4526 | # if EV_EMBED_ENABLE |
|
|
4527 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
2271 | #endif |
4528 | # endif |
|
|
4529 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
4530 | #endif |
2272 | |
4531 | |
|
|
4532 | #if EV_CHECK_ENABLE |
|
|
4533 | if (types & EV_CHECK) |
|
|
4534 | for (i = checkcnt; i--; ) |
|
|
4535 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
4536 | #endif |
|
|
4537 | |
|
|
4538 | #if EV_SIGNAL_ENABLE |
|
|
4539 | if (types & EV_SIGNAL) |
|
|
4540 | for (i = 0; i < EV_NSIG - 1; ++i) |
|
|
4541 | for (wl = signals [i].head; wl; ) |
|
|
4542 | { |
|
|
4543 | wn = wl->next; |
|
|
4544 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
4545 | wl = wn; |
|
|
4546 | } |
|
|
4547 | #endif |
|
|
4548 | |
|
|
4549 | #if EV_CHILD_ENABLE |
|
|
4550 | if (types & EV_CHILD) |
|
|
4551 | for (i = (EV_PID_HASHSIZE); i--; ) |
|
|
4552 | for (wl = childs [i]; wl; ) |
|
|
4553 | { |
|
|
4554 | wn = wl->next; |
|
|
4555 | cb (EV_A_ EV_CHILD, wl); |
|
|
4556 | wl = wn; |
|
|
4557 | } |
|
|
4558 | #endif |
|
|
4559 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
4560 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
4561 | } |
|
|
4562 | #endif |
|
|
4563 | |
|
|
4564 | #if EV_MULTIPLICITY |
|
|
4565 | #include "ev_wrap.h" |
|
|
4566 | #endif |
|
|
4567 | |