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 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 | |
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138 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
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139 | # ifndef EV_USE_INOTIFY |
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140 | # define EV_USE_INOTIFY EV_FEATURE_OS |
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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 |
99 | #endif |
145 | # endif |
100 | |
146 | |
101 | #include <math.h> |
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 |
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154 | # endif |
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155 | |
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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 | |
102 | #include <stdlib.h> |
167 | #include <stdlib.h> |
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168 | #include <string.h> |
103 | #include <fcntl.h> |
169 | #include <fcntl.h> |
104 | #include <stddef.h> |
170 | #include <stddef.h> |
105 | |
171 | |
106 | #include <stdio.h> |
172 | #include <stdio.h> |
107 | |
173 | |
108 | #include <assert.h> |
174 | #include <assert.h> |
109 | #include <errno.h> |
175 | #include <errno.h> |
110 | #include <sys/types.h> |
176 | #include <sys/types.h> |
111 | #include <time.h> |
177 | #include <time.h> |
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178 | #include <limits.h> |
112 | |
179 | |
113 | #include <signal.h> |
180 | #include <signal.h> |
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181 | |
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182 | #ifdef EV_H |
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183 | # include EV_H |
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184 | #else |
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185 | # include "ev.h" |
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186 | #endif |
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187 | |
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188 | EV_CPP(extern "C" {) |
114 | |
189 | |
115 | #ifndef _WIN32 |
190 | #ifndef _WIN32 |
116 | # include <sys/time.h> |
191 | # include <sys/time.h> |
117 | # include <sys/wait.h> |
192 | # include <sys/wait.h> |
118 | # include <unistd.h> |
193 | # include <unistd.h> |
119 | #else |
194 | #else |
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195 | # include <io.h> |
120 | # define WIN32_LEAN_AND_MEAN |
196 | # define WIN32_LEAN_AND_MEAN |
121 | # include <windows.h> |
197 | # include <windows.h> |
122 | # ifndef EV_SELECT_IS_WINSOCKET |
198 | # ifndef EV_SELECT_IS_WINSOCKET |
123 | # define EV_SELECT_IS_WINSOCKET 1 |
199 | # define EV_SELECT_IS_WINSOCKET 1 |
124 | # endif |
200 | # endif |
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201 | # undef EV_AVOID_STDIO |
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202 | #endif |
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203 | |
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204 | /* OS X, in its infinite idiocy, actually HARDCODES |
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205 | * a limit of 1024 into their select. Where people have brains, |
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206 | * OS X engineers apparently have a vacuum. Or maybe they were |
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207 | * ordered to have a vacuum, or they do anything for money. |
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208 | * This might help. Or not. |
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209 | */ |
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210 | #define _DARWIN_UNLIMITED_SELECT 1 |
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211 | |
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212 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
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213 | |
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214 | /* try to deduce the maximum number of signals on this platform */ |
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215 | #if defined (EV_NSIG) |
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216 | /* use what's provided */ |
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217 | #elif defined (NSIG) |
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218 | # define EV_NSIG (NSIG) |
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219 | #elif defined(_NSIG) |
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220 | # define EV_NSIG (_NSIG) |
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221 | #elif defined (SIGMAX) |
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222 | # define EV_NSIG (SIGMAX+1) |
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223 | #elif defined (SIG_MAX) |
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224 | # define EV_NSIG (SIG_MAX+1) |
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225 | #elif defined (_SIG_MAX) |
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226 | # define EV_NSIG (_SIG_MAX+1) |
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227 | #elif defined (MAXSIG) |
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228 | # define EV_NSIG (MAXSIG+1) |
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229 | #elif defined (MAX_SIG) |
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230 | # define EV_NSIG (MAX_SIG+1) |
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231 | #elif defined (SIGARRAYSIZE) |
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232 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
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233 | #elif defined (_sys_nsig) |
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234 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
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235 | #else |
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236 | # error "unable to find value for NSIG, please report" |
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237 | /* to make it compile regardless, just remove the above line, */ |
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238 | /* but consider reporting it, too! :) */ |
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239 | # define EV_NSIG 65 |
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240 | #endif |
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241 | |
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242 | #ifndef EV_USE_FLOOR |
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243 | # define EV_USE_FLOOR 0 |
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244 | #endif |
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245 | |
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246 | #ifndef EV_USE_CLOCK_SYSCALL |
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247 | # if __linux && __GLIBC__ >= 2 |
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248 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
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249 | # else |
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250 | # define EV_USE_CLOCK_SYSCALL 0 |
125 | #endif |
251 | # endif |
126 | |
252 | #endif |
127 | /**/ |
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128 | |
253 | |
129 | #ifndef EV_USE_MONOTONIC |
254 | #ifndef EV_USE_MONOTONIC |
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255 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
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256 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
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257 | # else |
130 | # define EV_USE_MONOTONIC 0 |
258 | # define EV_USE_MONOTONIC 0 |
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259 | # endif |
131 | #endif |
260 | #endif |
132 | |
261 | |
133 | #ifndef EV_USE_REALTIME |
262 | #ifndef EV_USE_REALTIME |
134 | # define EV_USE_REALTIME 0 |
263 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
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264 | #endif |
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265 | |
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266 | #ifndef EV_USE_NANOSLEEP |
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267 | # if _POSIX_C_SOURCE >= 199309L |
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268 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
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269 | # else |
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270 | # define EV_USE_NANOSLEEP 0 |
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271 | # endif |
135 | #endif |
272 | #endif |
136 | |
273 | |
137 | #ifndef EV_USE_SELECT |
274 | #ifndef EV_USE_SELECT |
138 | # define EV_USE_SELECT 1 |
275 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
139 | #endif |
276 | #endif |
140 | |
277 | |
141 | #ifndef EV_USE_POLL |
278 | #ifndef EV_USE_POLL |
142 | # ifdef _WIN32 |
279 | # ifdef _WIN32 |
143 | # define EV_USE_POLL 0 |
280 | # define EV_USE_POLL 0 |
144 | # else |
281 | # else |
145 | # define EV_USE_POLL 1 |
282 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
146 | # endif |
283 | # endif |
147 | #endif |
284 | #endif |
148 | |
285 | |
149 | #ifndef EV_USE_EPOLL |
286 | #ifndef EV_USE_EPOLL |
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287 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
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288 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
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289 | # else |
150 | # define EV_USE_EPOLL 0 |
290 | # define EV_USE_EPOLL 0 |
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291 | # endif |
151 | #endif |
292 | #endif |
152 | |
293 | |
153 | #ifndef EV_USE_KQUEUE |
294 | #ifndef EV_USE_KQUEUE |
154 | # define EV_USE_KQUEUE 0 |
295 | # define EV_USE_KQUEUE 0 |
155 | #endif |
296 | #endif |
156 | |
297 | |
157 | #ifndef EV_USE_PORT |
298 | #ifndef EV_USE_PORT |
158 | # define EV_USE_PORT 0 |
299 | # define EV_USE_PORT 0 |
159 | #endif |
300 | #endif |
160 | |
301 | |
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302 | #ifndef EV_USE_INOTIFY |
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303 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
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304 | # define EV_USE_INOTIFY EV_FEATURE_OS |
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305 | # else |
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306 | # define EV_USE_INOTIFY 0 |
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307 | # endif |
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308 | #endif |
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309 | |
161 | #ifndef EV_PID_HASHSIZE |
310 | #ifndef EV_PID_HASHSIZE |
162 | # if EV_MINIMAL |
311 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
163 | # define EV_PID_HASHSIZE 1 |
312 | #endif |
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313 | |
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314 | #ifndef EV_INOTIFY_HASHSIZE |
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315 | # define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
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316 | #endif |
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317 | |
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318 | #ifndef EV_USE_EVENTFD |
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319 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
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320 | # define EV_USE_EVENTFD EV_FEATURE_OS |
164 | # else |
321 | # else |
165 | # define EV_PID_HASHSIZE 16 |
322 | # define EV_USE_EVENTFD 0 |
166 | # endif |
323 | # endif |
167 | #endif |
324 | #endif |
168 | |
325 | |
169 | /**/ |
326 | #ifndef EV_USE_SIGNALFD |
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327 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
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328 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
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329 | # else |
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330 | # define EV_USE_SIGNALFD 0 |
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331 | # endif |
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332 | #endif |
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333 | |
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334 | #if 0 /* debugging */ |
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335 | # define EV_VERIFY 3 |
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336 | # define EV_USE_4HEAP 1 |
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337 | # define EV_HEAP_CACHE_AT 1 |
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338 | #endif |
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339 | |
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340 | #ifndef EV_VERIFY |
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341 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
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342 | #endif |
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343 | |
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344 | #ifndef EV_USE_4HEAP |
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345 | # define EV_USE_4HEAP EV_FEATURE_DATA |
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346 | #endif |
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347 | |
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348 | #ifndef EV_HEAP_CACHE_AT |
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349 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
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350 | #endif |
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351 | |
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352 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
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353 | /* which makes programs even slower. might work on other unices, too. */ |
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354 | #if EV_USE_CLOCK_SYSCALL |
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355 | # include <syscall.h> |
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356 | # ifdef SYS_clock_gettime |
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357 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
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358 | # undef EV_USE_MONOTONIC |
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359 | # define EV_USE_MONOTONIC 1 |
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360 | # else |
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361 | # undef EV_USE_CLOCK_SYSCALL |
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362 | # define EV_USE_CLOCK_SYSCALL 0 |
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363 | # endif |
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364 | #endif |
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365 | |
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366 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
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367 | |
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368 | #ifdef _AIX |
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369 | /* AIX has a completely broken poll.h header */ |
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370 | # undef EV_USE_POLL |
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371 | # define EV_USE_POLL 0 |
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372 | #endif |
170 | |
373 | |
171 | #ifndef CLOCK_MONOTONIC |
374 | #ifndef CLOCK_MONOTONIC |
172 | # undef EV_USE_MONOTONIC |
375 | # undef EV_USE_MONOTONIC |
173 | # define EV_USE_MONOTONIC 0 |
376 | # define EV_USE_MONOTONIC 0 |
174 | #endif |
377 | #endif |
… | |
… | |
176 | #ifndef CLOCK_REALTIME |
379 | #ifndef CLOCK_REALTIME |
177 | # undef EV_USE_REALTIME |
380 | # undef EV_USE_REALTIME |
178 | # define EV_USE_REALTIME 0 |
381 | # define EV_USE_REALTIME 0 |
179 | #endif |
382 | #endif |
180 | |
383 | |
|
|
384 | #if !EV_STAT_ENABLE |
|
|
385 | # undef EV_USE_INOTIFY |
|
|
386 | # define EV_USE_INOTIFY 0 |
|
|
387 | #endif |
|
|
388 | |
|
|
389 | #if !EV_USE_NANOSLEEP |
|
|
390 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
|
|
391 | # if !defined(_WIN32) && !defined(__hpux) |
|
|
392 | # include <sys/select.h> |
|
|
393 | # endif |
|
|
394 | #endif |
|
|
395 | |
|
|
396 | #if EV_USE_INOTIFY |
|
|
397 | # include <sys/statfs.h> |
|
|
398 | # include <sys/inotify.h> |
|
|
399 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
|
|
400 | # ifndef IN_DONT_FOLLOW |
|
|
401 | # undef EV_USE_INOTIFY |
|
|
402 | # define EV_USE_INOTIFY 0 |
|
|
403 | # endif |
|
|
404 | #endif |
|
|
405 | |
181 | #if EV_SELECT_IS_WINSOCKET |
406 | #if EV_SELECT_IS_WINSOCKET |
182 | # include <winsock.h> |
407 | # include <winsock.h> |
183 | #endif |
408 | #endif |
184 | |
409 | |
|
|
410 | #if EV_USE_EVENTFD |
|
|
411 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
412 | # include <stdint.h> |
|
|
413 | # ifndef EFD_NONBLOCK |
|
|
414 | # define EFD_NONBLOCK O_NONBLOCK |
|
|
415 | # endif |
|
|
416 | # ifndef EFD_CLOEXEC |
|
|
417 | # ifdef O_CLOEXEC |
|
|
418 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
419 | # else |
|
|
420 | # define EFD_CLOEXEC 02000000 |
|
|
421 | # endif |
|
|
422 | # endif |
|
|
423 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
|
|
424 | #endif |
|
|
425 | |
|
|
426 | #if EV_USE_SIGNALFD |
|
|
427 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
428 | # include <stdint.h> |
|
|
429 | # ifndef SFD_NONBLOCK |
|
|
430 | # define SFD_NONBLOCK O_NONBLOCK |
|
|
431 | # endif |
|
|
432 | # ifndef SFD_CLOEXEC |
|
|
433 | # ifdef O_CLOEXEC |
|
|
434 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
435 | # else |
|
|
436 | # define SFD_CLOEXEC 02000000 |
|
|
437 | # endif |
|
|
438 | # endif |
|
|
439 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
|
|
440 | |
|
|
441 | struct signalfd_siginfo |
|
|
442 | { |
|
|
443 | uint32_t ssi_signo; |
|
|
444 | char pad[128 - sizeof (uint32_t)]; |
|
|
445 | }; |
|
|
446 | #endif |
|
|
447 | |
185 | /**/ |
448 | /**/ |
|
|
449 | |
|
|
450 | #if EV_VERIFY >= 3 |
|
|
451 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
|
|
452 | #else |
|
|
453 | # define EV_FREQUENT_CHECK do { } while (0) |
|
|
454 | #endif |
|
|
455 | |
|
|
456 | /* |
|
|
457 | * This is used to work around floating point rounding problems. |
|
|
458 | * This value is good at least till the year 4000. |
|
|
459 | */ |
|
|
460 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
|
|
461 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
186 | |
462 | |
187 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
463 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
188 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
464 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
189 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */ |
|
|
190 | |
465 | |
191 | #ifdef EV_H |
466 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
192 | # include EV_H |
467 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
|
|
468 | |
|
|
469 | /* the following are taken from libecb */ |
|
|
470 | /* ecb.h start */ |
|
|
471 | |
|
|
472 | /* many compilers define _GNUC_ to some versions but then only implement |
|
|
473 | * what their idiot authors think are the "more important" extensions, |
|
|
474 | * causing enourmous grief in return for some better fake benchmark numbers. |
|
|
475 | * or so. |
|
|
476 | * we try to detect these and simply assume they are not gcc - if they have |
|
|
477 | * an issue with that they should have done it right in the first place. |
|
|
478 | */ |
|
|
479 | #ifndef ECB_GCC_VERSION |
|
|
480 | #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__) |
|
|
481 | #define ECB_GCC_VERSION(major,minor) 0 |
|
|
482 | #else |
|
|
483 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
|
|
484 | #endif |
|
|
485 | #endif |
|
|
486 | |
|
|
487 | #if __cplusplus |
|
|
488 | #define ecb_inline static inline |
|
|
489 | #elif ECB_GCC_VERSION(2,5) |
|
|
490 | #define ecb_inline static __inline__ |
|
|
491 | #elif ECB_C99 |
|
|
492 | #define ecb_inline static inline |
193 | #else |
493 | #else |
194 | # include "ev.h" |
494 | #define ecb_inline static |
|
|
495 | #endif |
|
|
496 | |
|
|
497 | #ifndef ECB_MEMORY_FENCE |
|
|
498 | #if ECB_GCC_VERSION(2,5) |
|
|
499 | #if __x86 |
|
|
500 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
|
|
501 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
502 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE /* better be safe than sorry */ |
|
|
503 | #elif __amd64 |
|
|
504 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
|
|
505 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") |
|
|
506 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") |
|
|
507 | #endif |
195 | #endif |
508 | #endif |
|
|
509 | #endif |
196 | |
510 | |
197 | #if __GNUC__ >= 3 |
511 | #ifndef ECB_MEMORY_FENCE |
|
|
512 | #if ECB_GCC_VERSION(4,4) |
|
|
513 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
514 | #define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) |
|
|
515 | #define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) |
|
|
516 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
517 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
518 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
519 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
520 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
521 | #elif defined(_WIN32) |
|
|
522 | #include <WinNT.h> |
|
|
523 | #define ECB_MEMORY_FENCE MemoryBarrier () |
|
|
524 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
525 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
526 | #endif |
|
|
527 | #endif |
|
|
528 | |
|
|
529 | #ifndef ECB_MEMORY_FENCE |
|
|
530 | #include <pthread.h> |
|
|
531 | |
|
|
532 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
533 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
534 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
535 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
536 | #endif |
|
|
537 | |
|
|
538 | #if ECB_GCC_VERSION(3,1) |
|
|
539 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
|
|
540 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
198 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
541 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
199 | # define inline_size static inline /* inline for codesize */ |
542 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
200 | # if EV_MINIMAL |
|
|
201 | # define noinline __attribute__ ((noinline)) |
|
|
202 | # define inline_speed static noinline |
|
|
203 | # else |
|
|
204 | # define noinline |
|
|
205 | # define inline_speed static inline |
|
|
206 | # endif |
|
|
207 | #else |
543 | #else |
|
|
544 | #define ecb_attribute(attrlist) |
|
|
545 | #define ecb_is_constant(expr) 0 |
208 | # define expect(expr,value) (expr) |
546 | #define ecb_expect(expr,value) (expr) |
209 | # define inline_speed static |
547 | #define ecb_prefetch(addr,rw,locality) |
210 | # define inline_size static |
|
|
211 | # define noinline |
|
|
212 | #endif |
548 | #endif |
213 | |
549 | |
|
|
550 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
551 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
552 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
553 | #define ecb_const ecb_attribute ((__const__)) |
|
|
554 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
555 | |
|
|
556 | #if ECB_GCC_VERSION(4,3) |
|
|
557 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
558 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
559 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
560 | #else |
|
|
561 | #define ecb_artificial |
|
|
562 | #define ecb_hot |
|
|
563 | #define ecb_cold |
|
|
564 | #endif |
|
|
565 | |
|
|
566 | /* put around conditional expressions if you are very sure that the */ |
|
|
567 | /* expression is mostly true or mostly false. note that these return */ |
|
|
568 | /* booleans, not the expression. */ |
214 | #define expect_false(expr) expect ((expr) != 0, 0) |
569 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
215 | #define expect_true(expr) expect ((expr) != 0, 1) |
570 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
571 | /* ecb.h end */ |
216 | |
572 | |
|
|
573 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
574 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
575 | #define noinline ecb_noinline |
|
|
576 | |
|
|
577 | #define inline_size ecb_inline |
|
|
578 | |
|
|
579 | #if EV_FEATURE_CODE |
|
|
580 | # define inline_speed ecb_inline |
|
|
581 | #else |
|
|
582 | # define inline_speed static noinline |
|
|
583 | #endif |
|
|
584 | |
217 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
585 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
586 | |
|
|
587 | #if EV_MINPRI == EV_MAXPRI |
|
|
588 | # define ABSPRI(w) (((W)w), 0) |
|
|
589 | #else |
218 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
590 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
591 | #endif |
219 | |
592 | |
220 | #define EMPTY0 /* required for microsofts broken pseudo-c compiler */ |
593 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
221 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
594 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
222 | |
595 | |
223 | typedef ev_watcher *W; |
596 | typedef ev_watcher *W; |
224 | typedef ev_watcher_list *WL; |
597 | typedef ev_watcher_list *WL; |
225 | typedef ev_watcher_time *WT; |
598 | typedef ev_watcher_time *WT; |
226 | |
599 | |
|
|
600 | #define ev_active(w) ((W)(w))->active |
|
|
601 | #define ev_at(w) ((WT)(w))->at |
|
|
602 | |
|
|
603 | #if EV_USE_REALTIME |
|
|
604 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
605 | /* giving it a reasonably high chance of working on typical architectures */ |
|
|
606 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
|
|
607 | #endif |
|
|
608 | |
|
|
609 | #if EV_USE_MONOTONIC |
227 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
610 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
611 | #endif |
|
|
612 | |
|
|
613 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
614 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
615 | #endif |
|
|
616 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
617 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
618 | #endif |
|
|
619 | #ifndef EV_WIN32_CLOSE_FD |
|
|
620 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
|
|
621 | #endif |
228 | |
622 | |
229 | #ifdef _WIN32 |
623 | #ifdef _WIN32 |
230 | # include "ev_win32.c" |
624 | # include "ev_win32.c" |
231 | #endif |
625 | #endif |
232 | |
626 | |
233 | /*****************************************************************************/ |
627 | /*****************************************************************************/ |
234 | |
628 | |
|
|
629 | /* define a suitable floor function (only used by periodics atm) */ |
|
|
630 | |
|
|
631 | #if EV_USE_FLOOR |
|
|
632 | # include <math.h> |
|
|
633 | # define ev_floor(v) floor (v) |
|
|
634 | #else |
|
|
635 | |
|
|
636 | #include <float.h> |
|
|
637 | |
|
|
638 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
639 | static ev_tstamp noinline |
|
|
640 | ev_floor (ev_tstamp v) |
|
|
641 | { |
|
|
642 | /* the choice of shift factor is not terribly important */ |
|
|
643 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
|
|
644 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
|
|
645 | #else |
|
|
646 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
|
|
647 | #endif |
|
|
648 | |
|
|
649 | /* argument too large for an unsigned long? */ |
|
|
650 | if (expect_false (v >= shift)) |
|
|
651 | { |
|
|
652 | ev_tstamp f; |
|
|
653 | |
|
|
654 | if (v == v - 1.) |
|
|
655 | return v; /* very large number */ |
|
|
656 | |
|
|
657 | f = shift * ev_floor (v * (1. / shift)); |
|
|
658 | return f + ev_floor (v - f); |
|
|
659 | } |
|
|
660 | |
|
|
661 | /* special treatment for negative args? */ |
|
|
662 | if (expect_false (v < 0.)) |
|
|
663 | { |
|
|
664 | ev_tstamp f = -ev_floor (-v); |
|
|
665 | |
|
|
666 | return f - (f == v ? 0 : 1); |
|
|
667 | } |
|
|
668 | |
|
|
669 | /* fits into an unsigned long */ |
|
|
670 | return (unsigned long)v; |
|
|
671 | } |
|
|
672 | |
|
|
673 | #endif |
|
|
674 | |
|
|
675 | /*****************************************************************************/ |
|
|
676 | |
|
|
677 | #ifdef __linux |
|
|
678 | # include <sys/utsname.h> |
|
|
679 | #endif |
|
|
680 | |
|
|
681 | static unsigned int noinline ecb_cold |
|
|
682 | ev_linux_version (void) |
|
|
683 | { |
|
|
684 | #ifdef __linux |
|
|
685 | unsigned int v = 0; |
|
|
686 | struct utsname buf; |
|
|
687 | int i; |
|
|
688 | char *p = buf.release; |
|
|
689 | |
|
|
690 | if (uname (&buf)) |
|
|
691 | return 0; |
|
|
692 | |
|
|
693 | for (i = 3+1; --i; ) |
|
|
694 | { |
|
|
695 | unsigned int c = 0; |
|
|
696 | |
|
|
697 | for (;;) |
|
|
698 | { |
|
|
699 | if (*p >= '0' && *p <= '9') |
|
|
700 | c = c * 10 + *p++ - '0'; |
|
|
701 | else |
|
|
702 | { |
|
|
703 | p += *p == '.'; |
|
|
704 | break; |
|
|
705 | } |
|
|
706 | } |
|
|
707 | |
|
|
708 | v = (v << 8) | c; |
|
|
709 | } |
|
|
710 | |
|
|
711 | return v; |
|
|
712 | #else |
|
|
713 | return 0; |
|
|
714 | #endif |
|
|
715 | } |
|
|
716 | |
|
|
717 | /*****************************************************************************/ |
|
|
718 | |
|
|
719 | #if EV_AVOID_STDIO |
|
|
720 | static void noinline ecb_cold |
|
|
721 | ev_printerr (const char *msg) |
|
|
722 | { |
|
|
723 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
724 | } |
|
|
725 | #endif |
|
|
726 | |
235 | static void (*syserr_cb)(const char *msg); |
727 | static void (*syserr_cb)(const char *msg); |
236 | |
728 | |
237 | void |
729 | void ecb_cold |
238 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
730 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
239 | { |
731 | { |
240 | syserr_cb = cb; |
732 | syserr_cb = cb; |
241 | } |
733 | } |
242 | |
734 | |
243 | static void noinline |
735 | static void noinline ecb_cold |
244 | syserr (const char *msg) |
736 | ev_syserr (const char *msg) |
245 | { |
737 | { |
246 | if (!msg) |
738 | if (!msg) |
247 | msg = "(libev) system error"; |
739 | msg = "(libev) system error"; |
248 | |
740 | |
249 | if (syserr_cb) |
741 | if (syserr_cb) |
250 | syserr_cb (msg); |
742 | syserr_cb (msg); |
251 | else |
743 | else |
252 | { |
744 | { |
|
|
745 | #if EV_AVOID_STDIO |
|
|
746 | ev_printerr (msg); |
|
|
747 | ev_printerr (": "); |
|
|
748 | ev_printerr (strerror (errno)); |
|
|
749 | ev_printerr ("\n"); |
|
|
750 | #else |
253 | perror (msg); |
751 | perror (msg); |
|
|
752 | #endif |
254 | abort (); |
753 | abort (); |
255 | } |
754 | } |
256 | } |
755 | } |
257 | |
756 | |
|
|
757 | static void * |
|
|
758 | ev_realloc_emul (void *ptr, long size) |
|
|
759 | { |
|
|
760 | #if __GLIBC__ |
|
|
761 | return realloc (ptr, size); |
|
|
762 | #else |
|
|
763 | /* some systems, notably openbsd and darwin, fail to properly |
|
|
764 | * implement realloc (x, 0) (as required by both ansi c-89 and |
|
|
765 | * the single unix specification, so work around them here. |
|
|
766 | */ |
|
|
767 | |
|
|
768 | if (size) |
|
|
769 | return realloc (ptr, size); |
|
|
770 | |
|
|
771 | free (ptr); |
|
|
772 | return 0; |
|
|
773 | #endif |
|
|
774 | } |
|
|
775 | |
258 | static void *(*alloc)(void *ptr, size_t size) = realloc; |
776 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
259 | |
777 | |
260 | void |
778 | void ecb_cold |
261 | ev_set_allocator (void *(*cb)(void *ptr, size_t size)) |
779 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
262 | { |
780 | { |
263 | alloc = cb; |
781 | alloc = cb; |
264 | } |
782 | } |
265 | |
783 | |
266 | inline_speed void * |
784 | inline_speed void * |
267 | ev_realloc (void *ptr, size_t size) |
785 | ev_realloc (void *ptr, long size) |
268 | { |
786 | { |
269 | ptr = alloc (ptr, size); |
787 | ptr = alloc (ptr, size); |
270 | |
788 | |
271 | if (!ptr && size) |
789 | if (!ptr && size) |
272 | { |
790 | { |
|
|
791 | #if EV_AVOID_STDIO |
|
|
792 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
|
|
793 | #else |
273 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", (long)size); |
794 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
|
|
795 | #endif |
274 | abort (); |
796 | abort (); |
275 | } |
797 | } |
276 | |
798 | |
277 | return ptr; |
799 | return ptr; |
278 | } |
800 | } |
… | |
… | |
280 | #define ev_malloc(size) ev_realloc (0, (size)) |
802 | #define ev_malloc(size) ev_realloc (0, (size)) |
281 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
803 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
282 | |
804 | |
283 | /*****************************************************************************/ |
805 | /*****************************************************************************/ |
284 | |
806 | |
|
|
807 | /* set in reify when reification needed */ |
|
|
808 | #define EV_ANFD_REIFY 1 |
|
|
809 | |
|
|
810 | /* file descriptor info structure */ |
285 | typedef struct |
811 | typedef struct |
286 | { |
812 | { |
287 | WL head; |
813 | WL head; |
288 | unsigned char events; |
814 | unsigned char events; /* the events watched for */ |
|
|
815 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
|
|
816 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
289 | unsigned char reify; |
817 | unsigned char unused; |
|
|
818 | #if EV_USE_EPOLL |
|
|
819 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
820 | #endif |
290 | #if EV_SELECT_IS_WINSOCKET |
821 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
291 | SOCKET handle; |
822 | SOCKET handle; |
292 | #endif |
823 | #endif |
|
|
824 | #if EV_USE_IOCP |
|
|
825 | OVERLAPPED or, ow; |
|
|
826 | #endif |
293 | } ANFD; |
827 | } ANFD; |
294 | |
828 | |
|
|
829 | /* stores the pending event set for a given watcher */ |
295 | typedef struct |
830 | typedef struct |
296 | { |
831 | { |
297 | W w; |
832 | W w; |
298 | int events; |
833 | int events; /* the pending event set for the given watcher */ |
299 | } ANPENDING; |
834 | } ANPENDING; |
|
|
835 | |
|
|
836 | #if EV_USE_INOTIFY |
|
|
837 | /* hash table entry per inotify-id */ |
|
|
838 | typedef struct |
|
|
839 | { |
|
|
840 | WL head; |
|
|
841 | } ANFS; |
|
|
842 | #endif |
|
|
843 | |
|
|
844 | /* Heap Entry */ |
|
|
845 | #if EV_HEAP_CACHE_AT |
|
|
846 | /* a heap element */ |
|
|
847 | typedef struct { |
|
|
848 | ev_tstamp at; |
|
|
849 | WT w; |
|
|
850 | } ANHE; |
|
|
851 | |
|
|
852 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
|
|
853 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
|
854 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
855 | #else |
|
|
856 | /* a heap element */ |
|
|
857 | typedef WT ANHE; |
|
|
858 | |
|
|
859 | #define ANHE_w(he) (he) |
|
|
860 | #define ANHE_at(he) (he)->at |
|
|
861 | #define ANHE_at_cache(he) |
|
|
862 | #endif |
300 | |
863 | |
301 | #if EV_MULTIPLICITY |
864 | #if EV_MULTIPLICITY |
302 | |
865 | |
303 | struct ev_loop |
866 | struct ev_loop |
304 | { |
867 | { |
… | |
… | |
322 | |
885 | |
323 | static int ev_default_loop_ptr; |
886 | static int ev_default_loop_ptr; |
324 | |
887 | |
325 | #endif |
888 | #endif |
326 | |
889 | |
|
|
890 | #if EV_FEATURE_API |
|
|
891 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
892 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
893 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
894 | #else |
|
|
895 | # define EV_RELEASE_CB (void)0 |
|
|
896 | # define EV_ACQUIRE_CB (void)0 |
|
|
897 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
898 | #endif |
|
|
899 | |
|
|
900 | #define EVBREAK_RECURSE 0x80 |
|
|
901 | |
327 | /*****************************************************************************/ |
902 | /*****************************************************************************/ |
328 | |
903 | |
|
|
904 | #ifndef EV_HAVE_EV_TIME |
329 | ev_tstamp |
905 | ev_tstamp |
330 | ev_time (void) |
906 | ev_time (void) |
331 | { |
907 | { |
332 | #if EV_USE_REALTIME |
908 | #if EV_USE_REALTIME |
|
|
909 | if (expect_true (have_realtime)) |
|
|
910 | { |
333 | struct timespec ts; |
911 | struct timespec ts; |
334 | clock_gettime (CLOCK_REALTIME, &ts); |
912 | clock_gettime (CLOCK_REALTIME, &ts); |
335 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
913 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
336 | #else |
914 | } |
|
|
915 | #endif |
|
|
916 | |
337 | struct timeval tv; |
917 | struct timeval tv; |
338 | gettimeofday (&tv, 0); |
918 | gettimeofday (&tv, 0); |
339 | return tv.tv_sec + tv.tv_usec * 1e-6; |
919 | return tv.tv_sec + tv.tv_usec * 1e-6; |
340 | #endif |
|
|
341 | } |
920 | } |
|
|
921 | #endif |
342 | |
922 | |
343 | ev_tstamp inline_size |
923 | inline_size ev_tstamp |
344 | get_clock (void) |
924 | get_clock (void) |
345 | { |
925 | { |
346 | #if EV_USE_MONOTONIC |
926 | #if EV_USE_MONOTONIC |
347 | if (expect_true (have_monotonic)) |
927 | if (expect_true (have_monotonic)) |
348 | { |
928 | { |
… | |
… | |
361 | { |
941 | { |
362 | return ev_rt_now; |
942 | return ev_rt_now; |
363 | } |
943 | } |
364 | #endif |
944 | #endif |
365 | |
945 | |
366 | #define array_roundsize(type,n) (((n) | 4) & ~3) |
946 | void |
|
|
947 | ev_sleep (ev_tstamp delay) |
|
|
948 | { |
|
|
949 | if (delay > 0.) |
|
|
950 | { |
|
|
951 | #if EV_USE_NANOSLEEP |
|
|
952 | struct timespec ts; |
|
|
953 | |
|
|
954 | EV_TS_SET (ts, delay); |
|
|
955 | nanosleep (&ts, 0); |
|
|
956 | #elif defined(_WIN32) |
|
|
957 | Sleep ((unsigned long)(delay * 1e3)); |
|
|
958 | #else |
|
|
959 | struct timeval tv; |
|
|
960 | |
|
|
961 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
|
|
962 | /* something not guaranteed by newer posix versions, but guaranteed */ |
|
|
963 | /* by older ones */ |
|
|
964 | EV_TV_SET (tv, delay); |
|
|
965 | select (0, 0, 0, 0, &tv); |
|
|
966 | #endif |
|
|
967 | } |
|
|
968 | } |
|
|
969 | |
|
|
970 | /*****************************************************************************/ |
|
|
971 | |
|
|
972 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
|
|
973 | |
|
|
974 | /* find a suitable new size for the given array, */ |
|
|
975 | /* hopefully by rounding to a nice-to-malloc size */ |
|
|
976 | inline_size int |
|
|
977 | array_nextsize (int elem, int cur, int cnt) |
|
|
978 | { |
|
|
979 | int ncur = cur + 1; |
|
|
980 | |
|
|
981 | do |
|
|
982 | ncur <<= 1; |
|
|
983 | while (cnt > ncur); |
|
|
984 | |
|
|
985 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
|
|
986 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
|
|
987 | { |
|
|
988 | ncur *= elem; |
|
|
989 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
|
|
990 | ncur = ncur - sizeof (void *) * 4; |
|
|
991 | ncur /= elem; |
|
|
992 | } |
|
|
993 | |
|
|
994 | return ncur; |
|
|
995 | } |
|
|
996 | |
|
|
997 | static void * noinline ecb_cold |
|
|
998 | array_realloc (int elem, void *base, int *cur, int cnt) |
|
|
999 | { |
|
|
1000 | *cur = array_nextsize (elem, *cur, cnt); |
|
|
1001 | return ev_realloc (base, elem * *cur); |
|
|
1002 | } |
|
|
1003 | |
|
|
1004 | #define array_init_zero(base,count) \ |
|
|
1005 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
367 | |
1006 | |
368 | #define array_needsize(type,base,cur,cnt,init) \ |
1007 | #define array_needsize(type,base,cur,cnt,init) \ |
369 | if (expect_false ((cnt) > cur)) \ |
1008 | if (expect_false ((cnt) > (cur))) \ |
370 | { \ |
1009 | { \ |
371 | int newcnt = cur; \ |
1010 | int ecb_unused ocur_ = (cur); \ |
372 | do \ |
1011 | (base) = (type *)array_realloc \ |
373 | { \ |
1012 | (sizeof (type), (base), &(cur), (cnt)); \ |
374 | newcnt = array_roundsize (type, newcnt << 1); \ |
1013 | init ((base) + (ocur_), (cur) - ocur_); \ |
375 | } \ |
|
|
376 | while ((cnt) > newcnt); \ |
|
|
377 | \ |
|
|
378 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
|
|
379 | init (base + cur, newcnt - cur); \ |
|
|
380 | cur = newcnt; \ |
|
|
381 | } |
1014 | } |
382 | |
1015 | |
|
|
1016 | #if 0 |
383 | #define array_slim(type,stem) \ |
1017 | #define array_slim(type,stem) \ |
384 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
1018 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
385 | { \ |
1019 | { \ |
386 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
1020 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
387 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
1021 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
388 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
1022 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
389 | } |
1023 | } |
|
|
1024 | #endif |
390 | |
1025 | |
391 | #define array_free(stem, idx) \ |
1026 | #define array_free(stem, idx) \ |
392 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
1027 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
393 | |
1028 | |
394 | /*****************************************************************************/ |
1029 | /*****************************************************************************/ |
|
|
1030 | |
|
|
1031 | /* dummy callback for pending events */ |
|
|
1032 | static void noinline |
|
|
1033 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
1034 | { |
|
|
1035 | } |
395 | |
1036 | |
396 | void noinline |
1037 | void noinline |
397 | ev_feed_event (EV_P_ void *w, int revents) |
1038 | ev_feed_event (EV_P_ void *w, int revents) |
398 | { |
1039 | { |
399 | W w_ = (W)w; |
1040 | W w_ = (W)w; |
|
|
1041 | int pri = ABSPRI (w_); |
400 | |
1042 | |
401 | if (expect_false (w_->pending)) |
1043 | if (expect_false (w_->pending)) |
|
|
1044 | pendings [pri][w_->pending - 1].events |= revents; |
|
|
1045 | else |
402 | { |
1046 | { |
|
|
1047 | w_->pending = ++pendingcnt [pri]; |
|
|
1048 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
|
|
1049 | pendings [pri][w_->pending - 1].w = w_; |
403 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
1050 | pendings [pri][w_->pending - 1].events = revents; |
404 | return; |
|
|
405 | } |
1051 | } |
406 | |
|
|
407 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
|
|
408 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2); |
|
|
409 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
|
|
410 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
|
|
411 | } |
1052 | } |
412 | |
1053 | |
413 | void inline_size |
1054 | inline_speed void |
|
|
1055 | feed_reverse (EV_P_ W w) |
|
|
1056 | { |
|
|
1057 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
1058 | rfeeds [rfeedcnt++] = w; |
|
|
1059 | } |
|
|
1060 | |
|
|
1061 | inline_size void |
|
|
1062 | feed_reverse_done (EV_P_ int revents) |
|
|
1063 | { |
|
|
1064 | do |
|
|
1065 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
1066 | while (rfeedcnt); |
|
|
1067 | } |
|
|
1068 | |
|
|
1069 | inline_speed void |
414 | queue_events (EV_P_ W *events, int eventcnt, int type) |
1070 | queue_events (EV_P_ W *events, int eventcnt, int type) |
415 | { |
1071 | { |
416 | int i; |
1072 | int i; |
417 | |
1073 | |
418 | for (i = 0; i < eventcnt; ++i) |
1074 | for (i = 0; i < eventcnt; ++i) |
419 | ev_feed_event (EV_A_ events [i], type); |
1075 | ev_feed_event (EV_A_ events [i], type); |
420 | } |
1076 | } |
421 | |
1077 | |
422 | /*****************************************************************************/ |
1078 | /*****************************************************************************/ |
423 | |
1079 | |
424 | void inline_size |
1080 | inline_speed void |
425 | anfds_init (ANFD *base, int count) |
|
|
426 | { |
|
|
427 | while (count--) |
|
|
428 | { |
|
|
429 | base->head = 0; |
|
|
430 | base->events = EV_NONE; |
|
|
431 | base->reify = 0; |
|
|
432 | |
|
|
433 | ++base; |
|
|
434 | } |
|
|
435 | } |
|
|
436 | |
|
|
437 | void inline_speed |
|
|
438 | fd_event (EV_P_ int fd, int revents) |
1081 | fd_event_nocheck (EV_P_ int fd, int revents) |
439 | { |
1082 | { |
440 | ANFD *anfd = anfds + fd; |
1083 | ANFD *anfd = anfds + fd; |
441 | ev_io *w; |
1084 | ev_io *w; |
442 | |
1085 | |
443 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1086 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
447 | if (ev) |
1090 | if (ev) |
448 | ev_feed_event (EV_A_ (W)w, ev); |
1091 | ev_feed_event (EV_A_ (W)w, ev); |
449 | } |
1092 | } |
450 | } |
1093 | } |
451 | |
1094 | |
|
|
1095 | /* do not submit kernel events for fds that have reify set */ |
|
|
1096 | /* because that means they changed while we were polling for new events */ |
|
|
1097 | inline_speed void |
|
|
1098 | fd_event (EV_P_ int fd, int revents) |
|
|
1099 | { |
|
|
1100 | ANFD *anfd = anfds + fd; |
|
|
1101 | |
|
|
1102 | if (expect_true (!anfd->reify)) |
|
|
1103 | fd_event_nocheck (EV_A_ fd, revents); |
|
|
1104 | } |
|
|
1105 | |
452 | void |
1106 | void |
453 | ev_feed_fd_event (EV_P_ int fd, int revents) |
1107 | ev_feed_fd_event (EV_P_ int fd, int revents) |
454 | { |
1108 | { |
|
|
1109 | if (fd >= 0 && fd < anfdmax) |
455 | fd_event (EV_A_ fd, revents); |
1110 | fd_event_nocheck (EV_A_ fd, revents); |
456 | } |
1111 | } |
457 | |
1112 | |
458 | void inline_size |
1113 | /* make sure the external fd watch events are in-sync */ |
|
|
1114 | /* with the kernel/libev internal state */ |
|
|
1115 | inline_size void |
459 | fd_reify (EV_P) |
1116 | fd_reify (EV_P) |
460 | { |
1117 | { |
461 | int i; |
1118 | int i; |
|
|
1119 | |
|
|
1120 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
1121 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1122 | { |
|
|
1123 | int fd = fdchanges [i]; |
|
|
1124 | ANFD *anfd = anfds + fd; |
|
|
1125 | |
|
|
1126 | if (anfd->reify & EV__IOFDSET && anfd->head) |
|
|
1127 | { |
|
|
1128 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
1129 | |
|
|
1130 | if (handle != anfd->handle) |
|
|
1131 | { |
|
|
1132 | unsigned long arg; |
|
|
1133 | |
|
|
1134 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0)); |
|
|
1135 | |
|
|
1136 | /* handle changed, but fd didn't - we need to do it in two steps */ |
|
|
1137 | backend_modify (EV_A_ fd, anfd->events, 0); |
|
|
1138 | anfd->events = 0; |
|
|
1139 | anfd->handle = handle; |
|
|
1140 | } |
|
|
1141 | } |
|
|
1142 | } |
|
|
1143 | #endif |
462 | |
1144 | |
463 | for (i = 0; i < fdchangecnt; ++i) |
1145 | for (i = 0; i < fdchangecnt; ++i) |
464 | { |
1146 | { |
465 | int fd = fdchanges [i]; |
1147 | int fd = fdchanges [i]; |
466 | ANFD *anfd = anfds + fd; |
1148 | ANFD *anfd = anfds + fd; |
467 | ev_io *w; |
1149 | ev_io *w; |
468 | |
1150 | |
469 | int events = 0; |
1151 | unsigned char o_events = anfd->events; |
|
|
1152 | unsigned char o_reify = anfd->reify; |
470 | |
1153 | |
471 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1154 | anfd->reify = 0; |
472 | events |= w->events; |
|
|
473 | |
1155 | |
474 | #if EV_SELECT_IS_WINSOCKET |
1156 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
475 | if (events) |
|
|
476 | { |
1157 | { |
477 | unsigned long argp; |
1158 | anfd->events = 0; |
478 | anfd->handle = _get_osfhandle (fd); |
1159 | |
479 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
1160 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
|
|
1161 | anfd->events |= (unsigned char)w->events; |
|
|
1162 | |
|
|
1163 | if (o_events != anfd->events) |
|
|
1164 | o_reify = EV__IOFDSET; /* actually |= */ |
480 | } |
1165 | } |
481 | #endif |
|
|
482 | |
1166 | |
483 | anfd->reify = 0; |
1167 | if (o_reify & EV__IOFDSET) |
484 | |
|
|
485 | backend_modify (EV_A_ fd, anfd->events, events); |
1168 | backend_modify (EV_A_ fd, o_events, anfd->events); |
486 | anfd->events = events; |
|
|
487 | } |
1169 | } |
488 | |
1170 | |
489 | fdchangecnt = 0; |
1171 | fdchangecnt = 0; |
490 | } |
1172 | } |
491 | |
1173 | |
492 | void inline_size |
1174 | /* something about the given fd changed */ |
|
|
1175 | inline_size void |
493 | fd_change (EV_P_ int fd) |
1176 | fd_change (EV_P_ int fd, int flags) |
494 | { |
1177 | { |
495 | if (expect_false (anfds [fd].reify)) |
1178 | unsigned char reify = anfds [fd].reify; |
496 | return; |
|
|
497 | |
|
|
498 | anfds [fd].reify = 1; |
1179 | anfds [fd].reify |= flags; |
499 | |
1180 | |
|
|
1181 | if (expect_true (!reify)) |
|
|
1182 | { |
500 | ++fdchangecnt; |
1183 | ++fdchangecnt; |
501 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
1184 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
502 | fdchanges [fdchangecnt - 1] = fd; |
1185 | fdchanges [fdchangecnt - 1] = fd; |
|
|
1186 | } |
503 | } |
1187 | } |
504 | |
1188 | |
505 | void inline_speed |
1189 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
1190 | inline_speed void ecb_cold |
506 | fd_kill (EV_P_ int fd) |
1191 | fd_kill (EV_P_ int fd) |
507 | { |
1192 | { |
508 | ev_io *w; |
1193 | ev_io *w; |
509 | |
1194 | |
510 | while ((w = (ev_io *)anfds [fd].head)) |
1195 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
512 | ev_io_stop (EV_A_ w); |
1197 | ev_io_stop (EV_A_ w); |
513 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1198 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
514 | } |
1199 | } |
515 | } |
1200 | } |
516 | |
1201 | |
517 | int inline_size |
1202 | /* check whether the given fd is actually valid, for error recovery */ |
|
|
1203 | inline_size int ecb_cold |
518 | fd_valid (int fd) |
1204 | fd_valid (int fd) |
519 | { |
1205 | { |
520 | #ifdef _WIN32 |
1206 | #ifdef _WIN32 |
521 | return _get_osfhandle (fd) != -1; |
1207 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
522 | #else |
1208 | #else |
523 | return fcntl (fd, F_GETFD) != -1; |
1209 | return fcntl (fd, F_GETFD) != -1; |
524 | #endif |
1210 | #endif |
525 | } |
1211 | } |
526 | |
1212 | |
527 | /* called on EBADF to verify fds */ |
1213 | /* called on EBADF to verify fds */ |
528 | static void noinline |
1214 | static void noinline ecb_cold |
529 | fd_ebadf (EV_P) |
1215 | fd_ebadf (EV_P) |
530 | { |
1216 | { |
531 | int fd; |
1217 | int fd; |
532 | |
1218 | |
533 | for (fd = 0; fd < anfdmax; ++fd) |
1219 | for (fd = 0; fd < anfdmax; ++fd) |
534 | if (anfds [fd].events) |
1220 | if (anfds [fd].events) |
535 | if (!fd_valid (fd) == -1 && errno == EBADF) |
1221 | if (!fd_valid (fd) && errno == EBADF) |
536 | fd_kill (EV_A_ fd); |
1222 | fd_kill (EV_A_ fd); |
537 | } |
1223 | } |
538 | |
1224 | |
539 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1225 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
540 | static void noinline |
1226 | static void noinline ecb_cold |
541 | fd_enomem (EV_P) |
1227 | fd_enomem (EV_P) |
542 | { |
1228 | { |
543 | int fd; |
1229 | int fd; |
544 | |
1230 | |
545 | for (fd = anfdmax; fd--; ) |
1231 | for (fd = anfdmax; fd--; ) |
546 | if (anfds [fd].events) |
1232 | if (anfds [fd].events) |
547 | { |
1233 | { |
548 | fd_kill (EV_A_ fd); |
1234 | fd_kill (EV_A_ fd); |
549 | return; |
1235 | break; |
550 | } |
1236 | } |
551 | } |
1237 | } |
552 | |
1238 | |
553 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1239 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
554 | static void noinline |
1240 | static void noinline |
555 | fd_rearm_all (EV_P) |
1241 | fd_rearm_all (EV_P) |
556 | { |
1242 | { |
557 | int fd; |
1243 | int fd; |
558 | |
1244 | |
559 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
560 | for (fd = 0; fd < anfdmax; ++fd) |
1245 | for (fd = 0; fd < anfdmax; ++fd) |
561 | if (anfds [fd].events) |
1246 | if (anfds [fd].events) |
562 | { |
1247 | { |
563 | anfds [fd].events = 0; |
1248 | anfds [fd].events = 0; |
564 | fd_change (EV_A_ fd); |
1249 | anfds [fd].emask = 0; |
|
|
1250 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
565 | } |
1251 | } |
566 | } |
1252 | } |
567 | |
1253 | |
568 | /*****************************************************************************/ |
1254 | /* used to prepare libev internal fd's */ |
569 | |
1255 | /* this is not fork-safe */ |
570 | void inline_speed |
1256 | inline_speed void |
571 | upheap (WT *heap, int k) |
|
|
572 | { |
|
|
573 | WT w = heap [k]; |
|
|
574 | |
|
|
575 | while (k && heap [k >> 1]->at > w->at) |
|
|
576 | { |
|
|
577 | heap [k] = heap [k >> 1]; |
|
|
578 | ((W)heap [k])->active = k + 1; |
|
|
579 | k >>= 1; |
|
|
580 | } |
|
|
581 | |
|
|
582 | heap [k] = w; |
|
|
583 | ((W)heap [k])->active = k + 1; |
|
|
584 | |
|
|
585 | } |
|
|
586 | |
|
|
587 | void inline_speed |
|
|
588 | downheap (WT *heap, int N, int k) |
|
|
589 | { |
|
|
590 | WT w = heap [k]; |
|
|
591 | |
|
|
592 | while (k < (N >> 1)) |
|
|
593 | { |
|
|
594 | int j = k << 1; |
|
|
595 | |
|
|
596 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
|
|
597 | ++j; |
|
|
598 | |
|
|
599 | if (w->at <= heap [j]->at) |
|
|
600 | break; |
|
|
601 | |
|
|
602 | heap [k] = heap [j]; |
|
|
603 | ((W)heap [k])->active = k + 1; |
|
|
604 | k = j; |
|
|
605 | } |
|
|
606 | |
|
|
607 | heap [k] = w; |
|
|
608 | ((W)heap [k])->active = k + 1; |
|
|
609 | } |
|
|
610 | |
|
|
611 | void inline_size |
|
|
612 | adjustheap (WT *heap, int N, int k) |
|
|
613 | { |
|
|
614 | upheap (heap, k); |
|
|
615 | downheap (heap, N, k); |
|
|
616 | } |
|
|
617 | |
|
|
618 | /*****************************************************************************/ |
|
|
619 | |
|
|
620 | typedef struct |
|
|
621 | { |
|
|
622 | WL head; |
|
|
623 | sig_atomic_t volatile gotsig; |
|
|
624 | } ANSIG; |
|
|
625 | |
|
|
626 | static ANSIG *signals; |
|
|
627 | static int signalmax; |
|
|
628 | |
|
|
629 | static int sigpipe [2]; |
|
|
630 | static sig_atomic_t volatile gotsig; |
|
|
631 | static ev_io sigev; |
|
|
632 | |
|
|
633 | void inline_size |
|
|
634 | signals_init (ANSIG *base, int count) |
|
|
635 | { |
|
|
636 | while (count--) |
|
|
637 | { |
|
|
638 | base->head = 0; |
|
|
639 | base->gotsig = 0; |
|
|
640 | |
|
|
641 | ++base; |
|
|
642 | } |
|
|
643 | } |
|
|
644 | |
|
|
645 | static void |
|
|
646 | sighandler (int signum) |
|
|
647 | { |
|
|
648 | #if _WIN32 |
|
|
649 | signal (signum, sighandler); |
|
|
650 | #endif |
|
|
651 | |
|
|
652 | signals [signum - 1].gotsig = 1; |
|
|
653 | |
|
|
654 | if (!gotsig) |
|
|
655 | { |
|
|
656 | int old_errno = errno; |
|
|
657 | gotsig = 1; |
|
|
658 | write (sigpipe [1], &signum, 1); |
|
|
659 | errno = old_errno; |
|
|
660 | } |
|
|
661 | } |
|
|
662 | |
|
|
663 | void noinline |
|
|
664 | ev_feed_signal_event (EV_P_ int signum) |
|
|
665 | { |
|
|
666 | WL w; |
|
|
667 | |
|
|
668 | #if EV_MULTIPLICITY |
|
|
669 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
670 | #endif |
|
|
671 | |
|
|
672 | --signum; |
|
|
673 | |
|
|
674 | if (signum < 0 || signum >= signalmax) |
|
|
675 | return; |
|
|
676 | |
|
|
677 | signals [signum].gotsig = 0; |
|
|
678 | |
|
|
679 | for (w = signals [signum].head; w; w = w->next) |
|
|
680 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
681 | } |
|
|
682 | |
|
|
683 | static void |
|
|
684 | sigcb (EV_P_ ev_io *iow, int revents) |
|
|
685 | { |
|
|
686 | int signum; |
|
|
687 | |
|
|
688 | read (sigpipe [0], &revents, 1); |
|
|
689 | gotsig = 0; |
|
|
690 | |
|
|
691 | for (signum = signalmax; signum--; ) |
|
|
692 | if (signals [signum].gotsig) |
|
|
693 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
694 | } |
|
|
695 | |
|
|
696 | void inline_size |
|
|
697 | fd_intern (int fd) |
1257 | fd_intern (int fd) |
698 | { |
1258 | { |
699 | #ifdef _WIN32 |
1259 | #ifdef _WIN32 |
700 | int arg = 1; |
1260 | unsigned long arg = 1; |
701 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1261 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
702 | #else |
1262 | #else |
703 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1263 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
704 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1264 | fcntl (fd, F_SETFL, O_NONBLOCK); |
705 | #endif |
1265 | #endif |
706 | } |
1266 | } |
707 | |
1267 | |
708 | static void noinline |
|
|
709 | siginit (EV_P) |
|
|
710 | { |
|
|
711 | fd_intern (sigpipe [0]); |
|
|
712 | fd_intern (sigpipe [1]); |
|
|
713 | |
|
|
714 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
715 | ev_io_start (EV_A_ &sigev); |
|
|
716 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
|
|
717 | } |
|
|
718 | |
|
|
719 | /*****************************************************************************/ |
1268 | /*****************************************************************************/ |
720 | |
1269 | |
721 | static ev_child *childs [EV_PID_HASHSIZE]; |
1270 | /* |
|
|
1271 | * the heap functions want a real array index. array index 0 is guaranteed to not |
|
|
1272 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
|
|
1273 | * the branching factor of the d-tree. |
|
|
1274 | */ |
722 | |
1275 | |
|
|
1276 | /* |
|
|
1277 | * at the moment we allow libev the luxury of two heaps, |
|
|
1278 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
1279 | * which is more cache-efficient. |
|
|
1280 | * the difference is about 5% with 50000+ watchers. |
|
|
1281 | */ |
|
|
1282 | #if EV_USE_4HEAP |
|
|
1283 | |
|
|
1284 | #define DHEAP 4 |
|
|
1285 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
1286 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
1287 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
|
|
1288 | |
|
|
1289 | /* away from the root */ |
|
|
1290 | inline_speed void |
|
|
1291 | downheap (ANHE *heap, int N, int k) |
|
|
1292 | { |
|
|
1293 | ANHE he = heap [k]; |
|
|
1294 | ANHE *E = heap + N + HEAP0; |
|
|
1295 | |
|
|
1296 | for (;;) |
|
|
1297 | { |
|
|
1298 | ev_tstamp minat; |
|
|
1299 | ANHE *minpos; |
|
|
1300 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
|
|
1301 | |
|
|
1302 | /* find minimum child */ |
|
|
1303 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
1304 | { |
|
|
1305 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
1306 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
1307 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
1308 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
1309 | } |
|
|
1310 | else if (pos < E) |
|
|
1311 | { |
|
|
1312 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
1313 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
1314 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
1315 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
1316 | } |
|
|
1317 | else |
|
|
1318 | break; |
|
|
1319 | |
|
|
1320 | if (ANHE_at (he) <= minat) |
|
|
1321 | break; |
|
|
1322 | |
|
|
1323 | heap [k] = *minpos; |
|
|
1324 | ev_active (ANHE_w (*minpos)) = k; |
|
|
1325 | |
|
|
1326 | k = minpos - heap; |
|
|
1327 | } |
|
|
1328 | |
|
|
1329 | heap [k] = he; |
|
|
1330 | ev_active (ANHE_w (he)) = k; |
|
|
1331 | } |
|
|
1332 | |
|
|
1333 | #else /* 4HEAP */ |
|
|
1334 | |
|
|
1335 | #define HEAP0 1 |
|
|
1336 | #define HPARENT(k) ((k) >> 1) |
|
|
1337 | #define UPHEAP_DONE(p,k) (!(p)) |
|
|
1338 | |
|
|
1339 | /* away from the root */ |
|
|
1340 | inline_speed void |
|
|
1341 | downheap (ANHE *heap, int N, int k) |
|
|
1342 | { |
|
|
1343 | ANHE he = heap [k]; |
|
|
1344 | |
|
|
1345 | for (;;) |
|
|
1346 | { |
|
|
1347 | int c = k << 1; |
|
|
1348 | |
|
|
1349 | if (c >= N + HEAP0) |
|
|
1350 | break; |
|
|
1351 | |
|
|
1352 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
1353 | ? 1 : 0; |
|
|
1354 | |
|
|
1355 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
1356 | break; |
|
|
1357 | |
|
|
1358 | heap [k] = heap [c]; |
|
|
1359 | ev_active (ANHE_w (heap [k])) = k; |
|
|
1360 | |
|
|
1361 | k = c; |
|
|
1362 | } |
|
|
1363 | |
|
|
1364 | heap [k] = he; |
|
|
1365 | ev_active (ANHE_w (he)) = k; |
|
|
1366 | } |
|
|
1367 | #endif |
|
|
1368 | |
|
|
1369 | /* towards the root */ |
|
|
1370 | inline_speed void |
|
|
1371 | upheap (ANHE *heap, int k) |
|
|
1372 | { |
|
|
1373 | ANHE he = heap [k]; |
|
|
1374 | |
|
|
1375 | for (;;) |
|
|
1376 | { |
|
|
1377 | int p = HPARENT (k); |
|
|
1378 | |
|
|
1379 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
1380 | break; |
|
|
1381 | |
|
|
1382 | heap [k] = heap [p]; |
|
|
1383 | ev_active (ANHE_w (heap [k])) = k; |
|
|
1384 | k = p; |
|
|
1385 | } |
|
|
1386 | |
|
|
1387 | heap [k] = he; |
|
|
1388 | ev_active (ANHE_w (he)) = k; |
|
|
1389 | } |
|
|
1390 | |
|
|
1391 | /* move an element suitably so it is in a correct place */ |
|
|
1392 | inline_size void |
|
|
1393 | adjustheap (ANHE *heap, int N, int k) |
|
|
1394 | { |
|
|
1395 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
|
|
1396 | upheap (heap, k); |
|
|
1397 | else |
|
|
1398 | downheap (heap, N, k); |
|
|
1399 | } |
|
|
1400 | |
|
|
1401 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
1402 | inline_size void |
|
|
1403 | reheap (ANHE *heap, int N) |
|
|
1404 | { |
|
|
1405 | int i; |
|
|
1406 | |
|
|
1407 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
1408 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
1409 | for (i = 0; i < N; ++i) |
|
|
1410 | upheap (heap, i + HEAP0); |
|
|
1411 | } |
|
|
1412 | |
|
|
1413 | /*****************************************************************************/ |
|
|
1414 | |
|
|
1415 | /* associate signal watchers to a signal signal */ |
|
|
1416 | typedef struct |
|
|
1417 | { |
|
|
1418 | EV_ATOMIC_T pending; |
|
|
1419 | #if EV_MULTIPLICITY |
|
|
1420 | EV_P; |
|
|
1421 | #endif |
|
|
1422 | WL head; |
|
|
1423 | } ANSIG; |
|
|
1424 | |
|
|
1425 | static ANSIG signals [EV_NSIG - 1]; |
|
|
1426 | |
|
|
1427 | /*****************************************************************************/ |
|
|
1428 | |
|
|
1429 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
1430 | |
|
|
1431 | static void noinline ecb_cold |
|
|
1432 | evpipe_init (EV_P) |
|
|
1433 | { |
|
|
1434 | if (!ev_is_active (&pipe_w)) |
|
|
1435 | { |
|
|
1436 | # if EV_USE_EVENTFD |
|
|
1437 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1438 | if (evfd < 0 && errno == EINVAL) |
|
|
1439 | evfd = eventfd (0, 0); |
|
|
1440 | |
|
|
1441 | if (evfd >= 0) |
|
|
1442 | { |
|
|
1443 | evpipe [0] = -1; |
|
|
1444 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
|
|
1445 | ev_io_set (&pipe_w, evfd, EV_READ); |
|
|
1446 | } |
|
|
1447 | else |
|
|
1448 | # endif |
|
|
1449 | { |
|
|
1450 | while (pipe (evpipe)) |
|
|
1451 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
1452 | |
|
|
1453 | fd_intern (evpipe [0]); |
|
|
1454 | fd_intern (evpipe [1]); |
|
|
1455 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
|
|
1456 | } |
|
|
1457 | |
|
|
1458 | ev_io_start (EV_A_ &pipe_w); |
|
|
1459 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1460 | } |
|
|
1461 | } |
|
|
1462 | |
|
|
1463 | inline_speed void |
|
|
1464 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1465 | { |
|
|
1466 | if (expect_true (*flag)) |
|
|
1467 | return; |
|
|
1468 | |
|
|
1469 | *flag = 1; |
|
|
1470 | |
|
|
1471 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
1472 | |
|
|
1473 | pipe_write_skipped = 1; |
|
|
1474 | |
|
|
1475 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
1476 | |
|
|
1477 | if (pipe_write_wanted) |
|
|
1478 | { |
|
|
1479 | int old_errno; |
|
|
1480 | |
|
|
1481 | pipe_write_skipped = 0; /* just an optimsiation, no fence needed */ |
|
|
1482 | |
|
|
1483 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
1484 | |
|
|
1485 | #if EV_USE_EVENTFD |
|
|
1486 | if (evfd >= 0) |
|
|
1487 | { |
|
|
1488 | uint64_t counter = 1; |
|
|
1489 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1490 | } |
|
|
1491 | else |
|
|
1492 | #endif |
|
|
1493 | { |
|
|
1494 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1495 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1496 | /* so when you think this write should be a send instead, please find out */ |
|
|
1497 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1498 | /* tell me. thank you. */ |
|
|
1499 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
1500 | } |
|
|
1501 | |
|
|
1502 | errno = old_errno; |
|
|
1503 | } |
|
|
1504 | } |
|
|
1505 | |
|
|
1506 | /* called whenever the libev signal pipe */ |
|
|
1507 | /* got some events (signal, async) */ |
|
|
1508 | static void |
|
|
1509 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
1510 | { |
|
|
1511 | int i; |
|
|
1512 | |
|
|
1513 | if (revents & EV_READ) |
|
|
1514 | { |
|
|
1515 | #if EV_USE_EVENTFD |
|
|
1516 | if (evfd >= 0) |
|
|
1517 | { |
|
|
1518 | uint64_t counter; |
|
|
1519 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1520 | } |
|
|
1521 | else |
|
|
1522 | #endif |
|
|
1523 | { |
|
|
1524 | char dummy; |
|
|
1525 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
|
|
1526 | read (evpipe [0], &dummy, 1); |
|
|
1527 | } |
|
|
1528 | } |
|
|
1529 | |
|
|
1530 | pipe_write_skipped = 0; |
|
|
1531 | |
|
|
1532 | #if EV_SIGNAL_ENABLE |
|
|
1533 | if (sig_pending) |
|
|
1534 | { |
|
|
1535 | sig_pending = 0; |
|
|
1536 | |
|
|
1537 | for (i = EV_NSIG - 1; i--; ) |
|
|
1538 | if (expect_false (signals [i].pending)) |
|
|
1539 | ev_feed_signal_event (EV_A_ i + 1); |
|
|
1540 | } |
|
|
1541 | #endif |
|
|
1542 | |
|
|
1543 | #if EV_ASYNC_ENABLE |
|
|
1544 | if (async_pending) |
|
|
1545 | { |
|
|
1546 | async_pending = 0; |
|
|
1547 | |
|
|
1548 | for (i = asynccnt; i--; ) |
|
|
1549 | if (asyncs [i]->sent) |
|
|
1550 | { |
|
|
1551 | asyncs [i]->sent = 0; |
|
|
1552 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
1553 | } |
|
|
1554 | } |
|
|
1555 | #endif |
|
|
1556 | } |
|
|
1557 | |
|
|
1558 | /*****************************************************************************/ |
|
|
1559 | |
|
|
1560 | void |
|
|
1561 | ev_feed_signal (int signum) |
|
|
1562 | { |
|
|
1563 | #if EV_MULTIPLICITY |
|
|
1564 | EV_P = signals [signum - 1].loop; |
|
|
1565 | |
|
|
1566 | if (!EV_A) |
|
|
1567 | return; |
|
|
1568 | #endif |
|
|
1569 | |
|
|
1570 | if (!ev_active (&pipe_w)) |
|
|
1571 | return; |
|
|
1572 | |
|
|
1573 | signals [signum - 1].pending = 1; |
|
|
1574 | evpipe_write (EV_A_ &sig_pending); |
|
|
1575 | } |
|
|
1576 | |
|
|
1577 | static void |
|
|
1578 | ev_sighandler (int signum) |
|
|
1579 | { |
723 | #ifndef _WIN32 |
1580 | #ifdef _WIN32 |
|
|
1581 | signal (signum, ev_sighandler); |
|
|
1582 | #endif |
|
|
1583 | |
|
|
1584 | ev_feed_signal (signum); |
|
|
1585 | } |
|
|
1586 | |
|
|
1587 | void noinline |
|
|
1588 | ev_feed_signal_event (EV_P_ int signum) |
|
|
1589 | { |
|
|
1590 | WL w; |
|
|
1591 | |
|
|
1592 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1593 | return; |
|
|
1594 | |
|
|
1595 | --signum; |
|
|
1596 | |
|
|
1597 | #if EV_MULTIPLICITY |
|
|
1598 | /* it is permissible to try to feed a signal to the wrong loop */ |
|
|
1599 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
|
|
1600 | |
|
|
1601 | if (expect_false (signals [signum].loop != EV_A)) |
|
|
1602 | return; |
|
|
1603 | #endif |
|
|
1604 | |
|
|
1605 | signals [signum].pending = 0; |
|
|
1606 | |
|
|
1607 | for (w = signals [signum].head; w; w = w->next) |
|
|
1608 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
1609 | } |
|
|
1610 | |
|
|
1611 | #if EV_USE_SIGNALFD |
|
|
1612 | static void |
|
|
1613 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1614 | { |
|
|
1615 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1616 | |
|
|
1617 | for (;;) |
|
|
1618 | { |
|
|
1619 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1620 | |
|
|
1621 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1622 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1623 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1624 | |
|
|
1625 | if (res < (ssize_t)sizeof (si)) |
|
|
1626 | break; |
|
|
1627 | } |
|
|
1628 | } |
|
|
1629 | #endif |
|
|
1630 | |
|
|
1631 | #endif |
|
|
1632 | |
|
|
1633 | /*****************************************************************************/ |
|
|
1634 | |
|
|
1635 | #if EV_CHILD_ENABLE |
|
|
1636 | static WL childs [EV_PID_HASHSIZE]; |
724 | |
1637 | |
725 | static ev_signal childev; |
1638 | static ev_signal childev; |
726 | |
1639 | |
727 | void inline_speed |
1640 | #ifndef WIFCONTINUED |
|
|
1641 | # define WIFCONTINUED(status) 0 |
|
|
1642 | #endif |
|
|
1643 | |
|
|
1644 | /* handle a single child status event */ |
|
|
1645 | inline_speed void |
728 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
1646 | child_reap (EV_P_ int chain, int pid, int status) |
729 | { |
1647 | { |
730 | ev_child *w; |
1648 | ev_child *w; |
|
|
1649 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
731 | |
1650 | |
732 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1651 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1652 | { |
733 | if (w->pid == pid || !w->pid) |
1653 | if ((w->pid == pid || !w->pid) |
|
|
1654 | && (!traced || (w->flags & 1))) |
734 | { |
1655 | { |
735 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
1656 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
736 | w->rpid = pid; |
1657 | w->rpid = pid; |
737 | w->rstatus = status; |
1658 | w->rstatus = status; |
738 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
1659 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
739 | } |
1660 | } |
|
|
1661 | } |
740 | } |
1662 | } |
741 | |
1663 | |
742 | #ifndef WCONTINUED |
1664 | #ifndef WCONTINUED |
743 | # define WCONTINUED 0 |
1665 | # define WCONTINUED 0 |
744 | #endif |
1666 | #endif |
745 | |
1667 | |
|
|
1668 | /* called on sigchld etc., calls waitpid */ |
746 | static void |
1669 | static void |
747 | childcb (EV_P_ ev_signal *sw, int revents) |
1670 | childcb (EV_P_ ev_signal *sw, int revents) |
748 | { |
1671 | { |
749 | int pid, status; |
1672 | int pid, status; |
750 | |
1673 | |
… | |
… | |
753 | if (!WCONTINUED |
1676 | if (!WCONTINUED |
754 | || errno != EINVAL |
1677 | || errno != EINVAL |
755 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
1678 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
756 | return; |
1679 | return; |
757 | |
1680 | |
758 | /* make sure we are called again until all childs have been reaped */ |
1681 | /* make sure we are called again until all children have been reaped */ |
759 | /* we need to do it this way so that the callback gets called before we continue */ |
1682 | /* we need to do it this way so that the callback gets called before we continue */ |
760 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1683 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
761 | |
1684 | |
762 | child_reap (EV_A_ sw, pid, pid, status); |
1685 | child_reap (EV_A_ pid, pid, status); |
763 | if (EV_PID_HASHSIZE > 1) |
1686 | if ((EV_PID_HASHSIZE) > 1) |
764 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1687 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
765 | } |
1688 | } |
766 | |
1689 | |
767 | #endif |
1690 | #endif |
768 | |
1691 | |
769 | /*****************************************************************************/ |
1692 | /*****************************************************************************/ |
770 | |
1693 | |
|
|
1694 | #if EV_USE_IOCP |
|
|
1695 | # include "ev_iocp.c" |
|
|
1696 | #endif |
771 | #if EV_USE_PORT |
1697 | #if EV_USE_PORT |
772 | # include "ev_port.c" |
1698 | # include "ev_port.c" |
773 | #endif |
1699 | #endif |
774 | #if EV_USE_KQUEUE |
1700 | #if EV_USE_KQUEUE |
775 | # include "ev_kqueue.c" |
1701 | # include "ev_kqueue.c" |
… | |
… | |
782 | #endif |
1708 | #endif |
783 | #if EV_USE_SELECT |
1709 | #if EV_USE_SELECT |
784 | # include "ev_select.c" |
1710 | # include "ev_select.c" |
785 | #endif |
1711 | #endif |
786 | |
1712 | |
787 | int |
1713 | int ecb_cold |
788 | ev_version_major (void) |
1714 | ev_version_major (void) |
789 | { |
1715 | { |
790 | return EV_VERSION_MAJOR; |
1716 | return EV_VERSION_MAJOR; |
791 | } |
1717 | } |
792 | |
1718 | |
793 | int |
1719 | int ecb_cold |
794 | ev_version_minor (void) |
1720 | ev_version_minor (void) |
795 | { |
1721 | { |
796 | return EV_VERSION_MINOR; |
1722 | return EV_VERSION_MINOR; |
797 | } |
1723 | } |
798 | |
1724 | |
799 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1725 | /* return true if we are running with elevated privileges and should ignore env variables */ |
800 | int inline_size |
1726 | int inline_size ecb_cold |
801 | enable_secure (void) |
1727 | enable_secure (void) |
802 | { |
1728 | { |
803 | #ifdef _WIN32 |
1729 | #ifdef _WIN32 |
804 | return 0; |
1730 | return 0; |
805 | #else |
1731 | #else |
806 | return getuid () != geteuid () |
1732 | return getuid () != geteuid () |
807 | || getgid () != getegid (); |
1733 | || getgid () != getegid (); |
808 | #endif |
1734 | #endif |
809 | } |
1735 | } |
810 | |
1736 | |
811 | unsigned int |
1737 | unsigned int ecb_cold |
812 | ev_supported_backends (void) |
1738 | ev_supported_backends (void) |
813 | { |
1739 | { |
814 | unsigned int flags = 0; |
1740 | unsigned int flags = 0; |
815 | |
1741 | |
816 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
1742 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
… | |
… | |
820 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
1746 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
821 | |
1747 | |
822 | return flags; |
1748 | return flags; |
823 | } |
1749 | } |
824 | |
1750 | |
825 | unsigned int |
1751 | unsigned int ecb_cold |
826 | ev_recommended_backends (void) |
1752 | ev_recommended_backends (void) |
827 | { |
1753 | { |
828 | unsigned int flags = ev_supported_backends (); |
1754 | unsigned int flags = ev_supported_backends (); |
829 | |
1755 | |
830 | #ifndef __NetBSD__ |
1756 | #ifndef __NetBSD__ |
831 | /* kqueue is borked on everything but netbsd apparently */ |
1757 | /* kqueue is borked on everything but netbsd apparently */ |
832 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1758 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
833 | flags &= ~EVBACKEND_KQUEUE; |
1759 | flags &= ~EVBACKEND_KQUEUE; |
834 | #endif |
1760 | #endif |
835 | #ifdef __APPLE__ |
1761 | #ifdef __APPLE__ |
836 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1762 | /* only select works correctly on that "unix-certified" platform */ |
837 | flags &= ~EVBACKEND_POLL; |
1763 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1764 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
|
|
1765 | #endif |
|
|
1766 | #ifdef __FreeBSD__ |
|
|
1767 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
838 | #endif |
1768 | #endif |
839 | |
1769 | |
840 | return flags; |
1770 | return flags; |
841 | } |
1771 | } |
842 | |
1772 | |
843 | unsigned int |
1773 | unsigned int ecb_cold |
844 | ev_embeddable_backends (void) |
1774 | ev_embeddable_backends (void) |
845 | { |
1775 | { |
846 | return EVBACKEND_EPOLL |
1776 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
847 | | EVBACKEND_KQUEUE |
1777 | |
848 | | EVBACKEND_PORT; |
1778 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1779 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
|
|
1780 | flags &= ~EVBACKEND_EPOLL; |
|
|
1781 | |
|
|
1782 | return flags; |
849 | } |
1783 | } |
850 | |
1784 | |
851 | unsigned int |
1785 | unsigned int |
852 | ev_backend (EV_P) |
1786 | ev_backend (EV_P) |
853 | { |
1787 | { |
854 | return backend; |
1788 | return backend; |
855 | } |
1789 | } |
856 | |
1790 | |
|
|
1791 | #if EV_FEATURE_API |
|
|
1792 | unsigned int |
|
|
1793 | ev_iteration (EV_P) |
|
|
1794 | { |
|
|
1795 | return loop_count; |
|
|
1796 | } |
|
|
1797 | |
|
|
1798 | unsigned int |
|
|
1799 | ev_depth (EV_P) |
|
|
1800 | { |
|
|
1801 | return loop_depth; |
|
|
1802 | } |
|
|
1803 | |
|
|
1804 | void |
|
|
1805 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1806 | { |
|
|
1807 | io_blocktime = interval; |
|
|
1808 | } |
|
|
1809 | |
|
|
1810 | void |
|
|
1811 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1812 | { |
|
|
1813 | timeout_blocktime = interval; |
|
|
1814 | } |
|
|
1815 | |
|
|
1816 | void |
|
|
1817 | ev_set_userdata (EV_P_ void *data) |
|
|
1818 | { |
|
|
1819 | userdata = data; |
|
|
1820 | } |
|
|
1821 | |
|
|
1822 | void * |
|
|
1823 | ev_userdata (EV_P) |
|
|
1824 | { |
|
|
1825 | return userdata; |
|
|
1826 | } |
|
|
1827 | |
|
|
1828 | void |
|
|
1829 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1830 | { |
|
|
1831 | invoke_cb = invoke_pending_cb; |
|
|
1832 | } |
|
|
1833 | |
|
|
1834 | void |
|
|
1835 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1836 | { |
|
|
1837 | release_cb = release; |
|
|
1838 | acquire_cb = acquire; |
|
|
1839 | } |
|
|
1840 | #endif |
|
|
1841 | |
|
|
1842 | /* initialise a loop structure, must be zero-initialised */ |
857 | static void noinline |
1843 | static void noinline ecb_cold |
858 | loop_init (EV_P_ unsigned int flags) |
1844 | loop_init (EV_P_ unsigned int flags) |
859 | { |
1845 | { |
860 | if (!backend) |
1846 | if (!backend) |
861 | { |
1847 | { |
|
|
1848 | origflags = flags; |
|
|
1849 | |
|
|
1850 | #if EV_USE_REALTIME |
|
|
1851 | if (!have_realtime) |
|
|
1852 | { |
|
|
1853 | struct timespec ts; |
|
|
1854 | |
|
|
1855 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1856 | have_realtime = 1; |
|
|
1857 | } |
|
|
1858 | #endif |
|
|
1859 | |
862 | #if EV_USE_MONOTONIC |
1860 | #if EV_USE_MONOTONIC |
|
|
1861 | if (!have_monotonic) |
863 | { |
1862 | { |
864 | struct timespec ts; |
1863 | struct timespec ts; |
|
|
1864 | |
865 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1865 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
866 | have_monotonic = 1; |
1866 | have_monotonic = 1; |
867 | } |
1867 | } |
868 | #endif |
1868 | #endif |
869 | |
1869 | |
870 | ev_rt_now = ev_time (); |
1870 | /* pid check not overridable via env */ |
871 | mn_now = get_clock (); |
1871 | #ifndef _WIN32 |
872 | now_floor = mn_now; |
1872 | if (flags & EVFLAG_FORKCHECK) |
873 | rtmn_diff = ev_rt_now - mn_now; |
1873 | curpid = getpid (); |
|
|
1874 | #endif |
874 | |
1875 | |
875 | if (!(flags & EVFLAG_NOENV) |
1876 | if (!(flags & EVFLAG_NOENV) |
876 | && !enable_secure () |
1877 | && !enable_secure () |
877 | && getenv ("LIBEV_FLAGS")) |
1878 | && getenv ("LIBEV_FLAGS")) |
878 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1879 | flags = atoi (getenv ("LIBEV_FLAGS")); |
879 | |
1880 | |
880 | if (!(flags & 0x0000ffffUL)) |
1881 | ev_rt_now = ev_time (); |
|
|
1882 | mn_now = get_clock (); |
|
|
1883 | now_floor = mn_now; |
|
|
1884 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1885 | #if EV_FEATURE_API |
|
|
1886 | invoke_cb = ev_invoke_pending; |
|
|
1887 | #endif |
|
|
1888 | |
|
|
1889 | io_blocktime = 0.; |
|
|
1890 | timeout_blocktime = 0.; |
|
|
1891 | backend = 0; |
|
|
1892 | backend_fd = -1; |
|
|
1893 | sig_pending = 0; |
|
|
1894 | #if EV_ASYNC_ENABLE |
|
|
1895 | async_pending = 0; |
|
|
1896 | #endif |
|
|
1897 | pipe_write_skipped = 0; |
|
|
1898 | pipe_write_wanted = 0; |
|
|
1899 | #if EV_USE_INOTIFY |
|
|
1900 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
|
|
1901 | #endif |
|
|
1902 | #if EV_USE_SIGNALFD |
|
|
1903 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
|
|
1904 | #endif |
|
|
1905 | |
|
|
1906 | if (!(flags & EVBACKEND_MASK)) |
881 | flags |= ev_recommended_backends (); |
1907 | flags |= ev_recommended_backends (); |
882 | |
1908 | |
883 | backend = 0; |
1909 | #if EV_USE_IOCP |
|
|
1910 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
1911 | #endif |
884 | #if EV_USE_PORT |
1912 | #if EV_USE_PORT |
885 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1913 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
886 | #endif |
1914 | #endif |
887 | #if EV_USE_KQUEUE |
1915 | #if EV_USE_KQUEUE |
888 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
1916 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
895 | #endif |
1923 | #endif |
896 | #if EV_USE_SELECT |
1924 | #if EV_USE_SELECT |
897 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1925 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
898 | #endif |
1926 | #endif |
899 | |
1927 | |
|
|
1928 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1929 | |
|
|
1930 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
900 | ev_init (&sigev, sigcb); |
1931 | ev_init (&pipe_w, pipecb); |
901 | ev_set_priority (&sigev, EV_MAXPRI); |
1932 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
1933 | #endif |
902 | } |
1934 | } |
903 | } |
1935 | } |
904 | |
1936 | |
905 | static void noinline |
1937 | /* free up a loop structure */ |
|
|
1938 | void ecb_cold |
906 | loop_destroy (EV_P) |
1939 | ev_loop_destroy (EV_P) |
907 | { |
1940 | { |
908 | int i; |
1941 | int i; |
909 | |
1942 | |
|
|
1943 | #if EV_MULTIPLICITY |
|
|
1944 | /* mimic free (0) */ |
|
|
1945 | if (!EV_A) |
|
|
1946 | return; |
|
|
1947 | #endif |
|
|
1948 | |
|
|
1949 | #if EV_CLEANUP_ENABLE |
|
|
1950 | /* queue cleanup watchers (and execute them) */ |
|
|
1951 | if (expect_false (cleanupcnt)) |
|
|
1952 | { |
|
|
1953 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
1954 | EV_INVOKE_PENDING; |
|
|
1955 | } |
|
|
1956 | #endif |
|
|
1957 | |
|
|
1958 | #if EV_CHILD_ENABLE |
|
|
1959 | if (ev_is_active (&childev)) |
|
|
1960 | { |
|
|
1961 | ev_ref (EV_A); /* child watcher */ |
|
|
1962 | ev_signal_stop (EV_A_ &childev); |
|
|
1963 | } |
|
|
1964 | #endif |
|
|
1965 | |
|
|
1966 | if (ev_is_active (&pipe_w)) |
|
|
1967 | { |
|
|
1968 | /*ev_ref (EV_A);*/ |
|
|
1969 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
|
|
1970 | |
|
|
1971 | #if EV_USE_EVENTFD |
|
|
1972 | if (evfd >= 0) |
|
|
1973 | close (evfd); |
|
|
1974 | #endif |
|
|
1975 | |
|
|
1976 | if (evpipe [0] >= 0) |
|
|
1977 | { |
|
|
1978 | EV_WIN32_CLOSE_FD (evpipe [0]); |
|
|
1979 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
1980 | } |
|
|
1981 | } |
|
|
1982 | |
|
|
1983 | #if EV_USE_SIGNALFD |
|
|
1984 | if (ev_is_active (&sigfd_w)) |
|
|
1985 | close (sigfd); |
|
|
1986 | #endif |
|
|
1987 | |
|
|
1988 | #if EV_USE_INOTIFY |
|
|
1989 | if (fs_fd >= 0) |
|
|
1990 | close (fs_fd); |
|
|
1991 | #endif |
|
|
1992 | |
|
|
1993 | if (backend_fd >= 0) |
|
|
1994 | close (backend_fd); |
|
|
1995 | |
|
|
1996 | #if EV_USE_IOCP |
|
|
1997 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
1998 | #endif |
910 | #if EV_USE_PORT |
1999 | #if EV_USE_PORT |
911 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
2000 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
912 | #endif |
2001 | #endif |
913 | #if EV_USE_KQUEUE |
2002 | #if EV_USE_KQUEUE |
914 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
2003 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
… | |
… | |
922 | #if EV_USE_SELECT |
2011 | #if EV_USE_SELECT |
923 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
2012 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
924 | #endif |
2013 | #endif |
925 | |
2014 | |
926 | for (i = NUMPRI; i--; ) |
2015 | for (i = NUMPRI; i--; ) |
|
|
2016 | { |
927 | array_free (pending, [i]); |
2017 | array_free (pending, [i]); |
|
|
2018 | #if EV_IDLE_ENABLE |
|
|
2019 | array_free (idle, [i]); |
|
|
2020 | #endif |
|
|
2021 | } |
|
|
2022 | |
|
|
2023 | ev_free (anfds); anfds = 0; anfdmax = 0; |
928 | |
2024 | |
929 | /* have to use the microsoft-never-gets-it-right macro */ |
2025 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
2026 | array_free (rfeed, EMPTY); |
930 | array_free (fdchange, EMPTY0); |
2027 | array_free (fdchange, EMPTY); |
931 | array_free (timer, EMPTY0); |
2028 | array_free (timer, EMPTY); |
932 | #if EV_PERIODIC_ENABLE |
2029 | #if EV_PERIODIC_ENABLE |
933 | array_free (periodic, EMPTY0); |
2030 | array_free (periodic, EMPTY); |
934 | #endif |
2031 | #endif |
|
|
2032 | #if EV_FORK_ENABLE |
|
|
2033 | array_free (fork, EMPTY); |
|
|
2034 | #endif |
|
|
2035 | #if EV_CLEANUP_ENABLE |
935 | array_free (idle, EMPTY0); |
2036 | array_free (cleanup, EMPTY); |
|
|
2037 | #endif |
936 | array_free (prepare, EMPTY0); |
2038 | array_free (prepare, EMPTY); |
937 | array_free (check, EMPTY0); |
2039 | array_free (check, EMPTY); |
|
|
2040 | #if EV_ASYNC_ENABLE |
|
|
2041 | array_free (async, EMPTY); |
|
|
2042 | #endif |
938 | |
2043 | |
939 | backend = 0; |
2044 | backend = 0; |
940 | } |
|
|
941 | |
2045 | |
942 | void inline_size |
2046 | #if EV_MULTIPLICITY |
|
|
2047 | if (ev_is_default_loop (EV_A)) |
|
|
2048 | #endif |
|
|
2049 | ev_default_loop_ptr = 0; |
|
|
2050 | #if EV_MULTIPLICITY |
|
|
2051 | else |
|
|
2052 | ev_free (EV_A); |
|
|
2053 | #endif |
|
|
2054 | } |
|
|
2055 | |
|
|
2056 | #if EV_USE_INOTIFY |
|
|
2057 | inline_size void infy_fork (EV_P); |
|
|
2058 | #endif |
|
|
2059 | |
|
|
2060 | inline_size void |
943 | loop_fork (EV_P) |
2061 | loop_fork (EV_P) |
944 | { |
2062 | { |
945 | #if EV_USE_PORT |
2063 | #if EV_USE_PORT |
946 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
2064 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
947 | #endif |
2065 | #endif |
… | |
… | |
949 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
2067 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
950 | #endif |
2068 | #endif |
951 | #if EV_USE_EPOLL |
2069 | #if EV_USE_EPOLL |
952 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
2070 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
953 | #endif |
2071 | #endif |
|
|
2072 | #if EV_USE_INOTIFY |
|
|
2073 | infy_fork (EV_A); |
|
|
2074 | #endif |
954 | |
2075 | |
955 | if (ev_is_active (&sigev)) |
2076 | if (ev_is_active (&pipe_w)) |
956 | { |
2077 | { |
957 | /* default loop */ |
2078 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
958 | |
2079 | |
959 | ev_ref (EV_A); |
2080 | ev_ref (EV_A); |
960 | ev_io_stop (EV_A_ &sigev); |
2081 | ev_io_stop (EV_A_ &pipe_w); |
961 | close (sigpipe [0]); |
|
|
962 | close (sigpipe [1]); |
|
|
963 | |
2082 | |
964 | while (pipe (sigpipe)) |
2083 | #if EV_USE_EVENTFD |
965 | syserr ("(libev) error creating pipe"); |
2084 | if (evfd >= 0) |
|
|
2085 | close (evfd); |
|
|
2086 | #endif |
966 | |
2087 | |
|
|
2088 | if (evpipe [0] >= 0) |
|
|
2089 | { |
|
|
2090 | EV_WIN32_CLOSE_FD (evpipe [0]); |
|
|
2091 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
2092 | } |
|
|
2093 | |
|
|
2094 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
967 | siginit (EV_A); |
2095 | evpipe_init (EV_A); |
|
|
2096 | /* now iterate over everything, in case we missed something */ |
|
|
2097 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
2098 | #endif |
968 | } |
2099 | } |
969 | |
2100 | |
970 | postfork = 0; |
2101 | postfork = 0; |
971 | } |
2102 | } |
972 | |
2103 | |
973 | #if EV_MULTIPLICITY |
2104 | #if EV_MULTIPLICITY |
|
|
2105 | |
974 | struct ev_loop * |
2106 | struct ev_loop * ecb_cold |
975 | ev_loop_new (unsigned int flags) |
2107 | ev_loop_new (unsigned int flags) |
976 | { |
2108 | { |
977 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2109 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
978 | |
2110 | |
979 | memset (loop, 0, sizeof (struct ev_loop)); |
2111 | memset (EV_A, 0, sizeof (struct ev_loop)); |
980 | |
|
|
981 | loop_init (EV_A_ flags); |
2112 | loop_init (EV_A_ flags); |
982 | |
2113 | |
983 | if (ev_backend (EV_A)) |
2114 | if (ev_backend (EV_A)) |
984 | return loop; |
2115 | return EV_A; |
985 | |
2116 | |
|
|
2117 | ev_free (EV_A); |
986 | return 0; |
2118 | return 0; |
987 | } |
2119 | } |
988 | |
2120 | |
989 | void |
2121 | #endif /* multiplicity */ |
990 | ev_loop_destroy (EV_P) |
|
|
991 | { |
|
|
992 | loop_destroy (EV_A); |
|
|
993 | ev_free (loop); |
|
|
994 | } |
|
|
995 | |
2122 | |
996 | void |
2123 | #if EV_VERIFY |
997 | ev_loop_fork (EV_P) |
2124 | static void noinline ecb_cold |
|
|
2125 | verify_watcher (EV_P_ W w) |
998 | { |
2126 | { |
999 | postfork = 1; |
2127 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1000 | } |
|
|
1001 | |
2128 | |
|
|
2129 | if (w->pending) |
|
|
2130 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
2131 | } |
|
|
2132 | |
|
|
2133 | static void noinline ecb_cold |
|
|
2134 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
2135 | { |
|
|
2136 | int i; |
|
|
2137 | |
|
|
2138 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
2139 | { |
|
|
2140 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
2141 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
2142 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
2143 | |
|
|
2144 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
2145 | } |
|
|
2146 | } |
|
|
2147 | |
|
|
2148 | static void noinline ecb_cold |
|
|
2149 | array_verify (EV_P_ W *ws, int cnt) |
|
|
2150 | { |
|
|
2151 | while (cnt--) |
|
|
2152 | { |
|
|
2153 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
2154 | verify_watcher (EV_A_ ws [cnt]); |
|
|
2155 | } |
|
|
2156 | } |
|
|
2157 | #endif |
|
|
2158 | |
|
|
2159 | #if EV_FEATURE_API |
|
|
2160 | void ecb_cold |
|
|
2161 | ev_verify (EV_P) |
|
|
2162 | { |
|
|
2163 | #if EV_VERIFY |
|
|
2164 | int i; |
|
|
2165 | WL w; |
|
|
2166 | |
|
|
2167 | assert (activecnt >= -1); |
|
|
2168 | |
|
|
2169 | assert (fdchangemax >= fdchangecnt); |
|
|
2170 | for (i = 0; i < fdchangecnt; ++i) |
|
|
2171 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
2172 | |
|
|
2173 | assert (anfdmax >= 0); |
|
|
2174 | for (i = 0; i < anfdmax; ++i) |
|
|
2175 | for (w = anfds [i].head; w; w = w->next) |
|
|
2176 | { |
|
|
2177 | verify_watcher (EV_A_ (W)w); |
|
|
2178 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
2179 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
2180 | } |
|
|
2181 | |
|
|
2182 | assert (timermax >= timercnt); |
|
|
2183 | verify_heap (EV_A_ timers, timercnt); |
|
|
2184 | |
|
|
2185 | #if EV_PERIODIC_ENABLE |
|
|
2186 | assert (periodicmax >= periodiccnt); |
|
|
2187 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
2188 | #endif |
|
|
2189 | |
|
|
2190 | for (i = NUMPRI; i--; ) |
|
|
2191 | { |
|
|
2192 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
2193 | #if EV_IDLE_ENABLE |
|
|
2194 | assert (idleall >= 0); |
|
|
2195 | assert (idlemax [i] >= idlecnt [i]); |
|
|
2196 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
2197 | #endif |
|
|
2198 | } |
|
|
2199 | |
|
|
2200 | #if EV_FORK_ENABLE |
|
|
2201 | assert (forkmax >= forkcnt); |
|
|
2202 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
2203 | #endif |
|
|
2204 | |
|
|
2205 | #if EV_CLEANUP_ENABLE |
|
|
2206 | assert (cleanupmax >= cleanupcnt); |
|
|
2207 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
2208 | #endif |
|
|
2209 | |
|
|
2210 | #if EV_ASYNC_ENABLE |
|
|
2211 | assert (asyncmax >= asynccnt); |
|
|
2212 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
2213 | #endif |
|
|
2214 | |
|
|
2215 | #if EV_PREPARE_ENABLE |
|
|
2216 | assert (preparemax >= preparecnt); |
|
|
2217 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
2218 | #endif |
|
|
2219 | |
|
|
2220 | #if EV_CHECK_ENABLE |
|
|
2221 | assert (checkmax >= checkcnt); |
|
|
2222 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
2223 | #endif |
|
|
2224 | |
|
|
2225 | # if 0 |
|
|
2226 | #if EV_CHILD_ENABLE |
|
|
2227 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
2228 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
2229 | #endif |
|
|
2230 | # endif |
|
|
2231 | #endif |
|
|
2232 | } |
1002 | #endif |
2233 | #endif |
1003 | |
2234 | |
1004 | #if EV_MULTIPLICITY |
2235 | #if EV_MULTIPLICITY |
1005 | struct ev_loop * |
2236 | struct ev_loop * ecb_cold |
1006 | ev_default_loop_init (unsigned int flags) |
|
|
1007 | #else |
2237 | #else |
1008 | int |
2238 | int |
|
|
2239 | #endif |
1009 | ev_default_loop (unsigned int flags) |
2240 | ev_default_loop (unsigned int flags) |
1010 | #endif |
|
|
1011 | { |
2241 | { |
1012 | if (sigpipe [0] == sigpipe [1]) |
|
|
1013 | if (pipe (sigpipe)) |
|
|
1014 | return 0; |
|
|
1015 | |
|
|
1016 | if (!ev_default_loop_ptr) |
2242 | if (!ev_default_loop_ptr) |
1017 | { |
2243 | { |
1018 | #if EV_MULTIPLICITY |
2244 | #if EV_MULTIPLICITY |
1019 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
2245 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1020 | #else |
2246 | #else |
1021 | ev_default_loop_ptr = 1; |
2247 | ev_default_loop_ptr = 1; |
1022 | #endif |
2248 | #endif |
1023 | |
2249 | |
1024 | loop_init (EV_A_ flags); |
2250 | loop_init (EV_A_ flags); |
1025 | |
2251 | |
1026 | if (ev_backend (EV_A)) |
2252 | if (ev_backend (EV_A)) |
1027 | { |
2253 | { |
1028 | siginit (EV_A); |
2254 | #if EV_CHILD_ENABLE |
1029 | |
|
|
1030 | #ifndef _WIN32 |
|
|
1031 | ev_signal_init (&childev, childcb, SIGCHLD); |
2255 | ev_signal_init (&childev, childcb, SIGCHLD); |
1032 | ev_set_priority (&childev, EV_MAXPRI); |
2256 | ev_set_priority (&childev, EV_MAXPRI); |
1033 | ev_signal_start (EV_A_ &childev); |
2257 | ev_signal_start (EV_A_ &childev); |
1034 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
2258 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1035 | #endif |
2259 | #endif |
… | |
… | |
1040 | |
2264 | |
1041 | return ev_default_loop_ptr; |
2265 | return ev_default_loop_ptr; |
1042 | } |
2266 | } |
1043 | |
2267 | |
1044 | void |
2268 | void |
1045 | ev_default_destroy (void) |
2269 | ev_loop_fork (EV_P) |
1046 | { |
2270 | { |
1047 | #if EV_MULTIPLICITY |
2271 | postfork = 1; /* must be in line with ev_default_fork */ |
1048 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1049 | #endif |
|
|
1050 | |
|
|
1051 | #ifndef _WIN32 |
|
|
1052 | ev_ref (EV_A); /* child watcher */ |
|
|
1053 | ev_signal_stop (EV_A_ &childev); |
|
|
1054 | #endif |
|
|
1055 | |
|
|
1056 | ev_ref (EV_A); /* signal watcher */ |
|
|
1057 | ev_io_stop (EV_A_ &sigev); |
|
|
1058 | |
|
|
1059 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1060 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1061 | |
|
|
1062 | loop_destroy (EV_A); |
|
|
1063 | } |
2272 | } |
|
|
2273 | |
|
|
2274 | /*****************************************************************************/ |
1064 | |
2275 | |
1065 | void |
2276 | void |
1066 | ev_default_fork (void) |
2277 | ev_invoke (EV_P_ void *w, int revents) |
1067 | { |
2278 | { |
1068 | #if EV_MULTIPLICITY |
2279 | EV_CB_INVOKE ((W)w, revents); |
1069 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1070 | #endif |
|
|
1071 | |
|
|
1072 | if (backend) |
|
|
1073 | postfork = 1; |
|
|
1074 | } |
2280 | } |
1075 | |
2281 | |
1076 | /*****************************************************************************/ |
2282 | unsigned int |
1077 | |
2283 | ev_pending_count (EV_P) |
1078 | int inline_size |
|
|
1079 | any_pending (EV_P) |
|
|
1080 | { |
2284 | { |
1081 | int pri; |
2285 | int pri; |
|
|
2286 | unsigned int count = 0; |
1082 | |
2287 | |
1083 | for (pri = NUMPRI; pri--; ) |
2288 | for (pri = NUMPRI; pri--; ) |
1084 | if (pendingcnt [pri]) |
2289 | count += pendingcnt [pri]; |
1085 | return 1; |
|
|
1086 | |
2290 | |
1087 | return 0; |
2291 | return count; |
1088 | } |
2292 | } |
1089 | |
2293 | |
1090 | void inline_speed |
2294 | void noinline |
1091 | call_pending (EV_P) |
2295 | ev_invoke_pending (EV_P) |
1092 | { |
2296 | { |
1093 | int pri; |
2297 | int pri; |
1094 | |
2298 | |
1095 | for (pri = NUMPRI; pri--; ) |
2299 | for (pri = NUMPRI; pri--; ) |
1096 | while (pendingcnt [pri]) |
2300 | while (pendingcnt [pri]) |
1097 | { |
2301 | { |
1098 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2302 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1099 | |
2303 | |
1100 | if (expect_true (p->w)) |
|
|
1101 | { |
|
|
1102 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1103 | |
|
|
1104 | p->w->pending = 0; |
2304 | p->w->pending = 0; |
1105 | EV_CB_INVOKE (p->w, p->events); |
2305 | EV_CB_INVOKE (p->w, p->events); |
1106 | } |
2306 | EV_FREQUENT_CHECK; |
1107 | } |
2307 | } |
1108 | } |
2308 | } |
1109 | |
2309 | |
1110 | void inline_size |
2310 | #if EV_IDLE_ENABLE |
|
|
2311 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
2312 | /* only when higher priorities are idle" logic */ |
|
|
2313 | inline_size void |
|
|
2314 | idle_reify (EV_P) |
|
|
2315 | { |
|
|
2316 | if (expect_false (idleall)) |
|
|
2317 | { |
|
|
2318 | int pri; |
|
|
2319 | |
|
|
2320 | for (pri = NUMPRI; pri--; ) |
|
|
2321 | { |
|
|
2322 | if (pendingcnt [pri]) |
|
|
2323 | break; |
|
|
2324 | |
|
|
2325 | if (idlecnt [pri]) |
|
|
2326 | { |
|
|
2327 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
|
|
2328 | break; |
|
|
2329 | } |
|
|
2330 | } |
|
|
2331 | } |
|
|
2332 | } |
|
|
2333 | #endif |
|
|
2334 | |
|
|
2335 | /* make timers pending */ |
|
|
2336 | inline_size void |
1111 | timers_reify (EV_P) |
2337 | timers_reify (EV_P) |
1112 | { |
2338 | { |
|
|
2339 | EV_FREQUENT_CHECK; |
|
|
2340 | |
1113 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
2341 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1114 | { |
2342 | { |
1115 | ev_timer *w = timers [0]; |
2343 | do |
1116 | |
|
|
1117 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1118 | |
|
|
1119 | /* first reschedule or stop timer */ |
|
|
1120 | if (w->repeat) |
|
|
1121 | { |
2344 | { |
|
|
2345 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
2346 | |
|
|
2347 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
2348 | |
|
|
2349 | /* first reschedule or stop timer */ |
|
|
2350 | if (w->repeat) |
|
|
2351 | { |
|
|
2352 | ev_at (w) += w->repeat; |
|
|
2353 | if (ev_at (w) < mn_now) |
|
|
2354 | ev_at (w) = mn_now; |
|
|
2355 | |
1122 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
2356 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1123 | |
2357 | |
1124 | ((WT)w)->at += w->repeat; |
2358 | ANHE_at_cache (timers [HEAP0]); |
1125 | if (((WT)w)->at < mn_now) |
|
|
1126 | ((WT)w)->at = mn_now; |
|
|
1127 | |
|
|
1128 | downheap ((WT *)timers, timercnt, 0); |
2359 | downheap (timers, timercnt, HEAP0); |
|
|
2360 | } |
|
|
2361 | else |
|
|
2362 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2363 | |
|
|
2364 | EV_FREQUENT_CHECK; |
|
|
2365 | feed_reverse (EV_A_ (W)w); |
1129 | } |
2366 | } |
1130 | else |
2367 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
1131 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1132 | |
2368 | |
1133 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
2369 | feed_reverse_done (EV_A_ EV_TIMER); |
1134 | } |
2370 | } |
1135 | } |
2371 | } |
1136 | |
2372 | |
1137 | #if EV_PERIODIC_ENABLE |
2373 | #if EV_PERIODIC_ENABLE |
1138 | void inline_size |
2374 | |
|
|
2375 | static void noinline |
|
|
2376 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
2377 | { |
|
|
2378 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
|
|
2379 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
|
|
2380 | |
|
|
2381 | /* the above almost always errs on the low side */ |
|
|
2382 | while (at <= ev_rt_now) |
|
|
2383 | { |
|
|
2384 | ev_tstamp nat = at + w->interval; |
|
|
2385 | |
|
|
2386 | /* when resolution fails us, we use ev_rt_now */ |
|
|
2387 | if (expect_false (nat == at)) |
|
|
2388 | { |
|
|
2389 | at = ev_rt_now; |
|
|
2390 | break; |
|
|
2391 | } |
|
|
2392 | |
|
|
2393 | at = nat; |
|
|
2394 | } |
|
|
2395 | |
|
|
2396 | ev_at (w) = at; |
|
|
2397 | } |
|
|
2398 | |
|
|
2399 | /* make periodics pending */ |
|
|
2400 | inline_size void |
1139 | periodics_reify (EV_P) |
2401 | periodics_reify (EV_P) |
1140 | { |
2402 | { |
|
|
2403 | EV_FREQUENT_CHECK; |
|
|
2404 | |
1141 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
2405 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1142 | { |
2406 | { |
1143 | ev_periodic *w = periodics [0]; |
2407 | int feed_count = 0; |
1144 | |
2408 | |
|
|
2409 | do |
|
|
2410 | { |
|
|
2411 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
2412 | |
1145 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
2413 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1146 | |
2414 | |
1147 | /* first reschedule or stop timer */ |
2415 | /* first reschedule or stop timer */ |
|
|
2416 | if (w->reschedule_cb) |
|
|
2417 | { |
|
|
2418 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2419 | |
|
|
2420 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
2421 | |
|
|
2422 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2423 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2424 | } |
|
|
2425 | else if (w->interval) |
|
|
2426 | { |
|
|
2427 | periodic_recalc (EV_A_ w); |
|
|
2428 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2429 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2430 | } |
|
|
2431 | else |
|
|
2432 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2433 | |
|
|
2434 | EV_FREQUENT_CHECK; |
|
|
2435 | feed_reverse (EV_A_ (W)w); |
|
|
2436 | } |
|
|
2437 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
|
|
2438 | |
|
|
2439 | feed_reverse_done (EV_A_ EV_PERIODIC); |
|
|
2440 | } |
|
|
2441 | } |
|
|
2442 | |
|
|
2443 | /* simply recalculate all periodics */ |
|
|
2444 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
|
|
2445 | static void noinline ecb_cold |
|
|
2446 | periodics_reschedule (EV_P) |
|
|
2447 | { |
|
|
2448 | int i; |
|
|
2449 | |
|
|
2450 | /* adjust periodics after time jump */ |
|
|
2451 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
|
|
2452 | { |
|
|
2453 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
|
|
2454 | |
1148 | if (w->reschedule_cb) |
2455 | if (w->reschedule_cb) |
|
|
2456 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2457 | else if (w->interval) |
|
|
2458 | periodic_recalc (EV_A_ w); |
|
|
2459 | |
|
|
2460 | ANHE_at_cache (periodics [i]); |
|
|
2461 | } |
|
|
2462 | |
|
|
2463 | reheap (periodics, periodiccnt); |
|
|
2464 | } |
|
|
2465 | #endif |
|
|
2466 | |
|
|
2467 | /* adjust all timers by a given offset */ |
|
|
2468 | static void noinline ecb_cold |
|
|
2469 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
2470 | { |
|
|
2471 | int i; |
|
|
2472 | |
|
|
2473 | for (i = 0; i < timercnt; ++i) |
|
|
2474 | { |
|
|
2475 | ANHE *he = timers + i + HEAP0; |
|
|
2476 | ANHE_w (*he)->at += adjust; |
|
|
2477 | ANHE_at_cache (*he); |
|
|
2478 | } |
|
|
2479 | } |
|
|
2480 | |
|
|
2481 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2482 | /* also detect if there was a timejump, and act accordingly */ |
|
|
2483 | inline_speed void |
|
|
2484 | time_update (EV_P_ ev_tstamp max_block) |
|
|
2485 | { |
|
|
2486 | #if EV_USE_MONOTONIC |
|
|
2487 | if (expect_true (have_monotonic)) |
|
|
2488 | { |
|
|
2489 | int i; |
|
|
2490 | ev_tstamp odiff = rtmn_diff; |
|
|
2491 | |
|
|
2492 | mn_now = get_clock (); |
|
|
2493 | |
|
|
2494 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
2495 | /* interpolate in the meantime */ |
|
|
2496 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1149 | { |
2497 | { |
1150 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
2498 | ev_rt_now = rtmn_diff + mn_now; |
1151 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
2499 | return; |
1152 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1153 | } |
2500 | } |
1154 | else if (w->interval) |
|
|
1155 | { |
|
|
1156 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
|
|
1157 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
|
|
1158 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1159 | } |
|
|
1160 | else |
|
|
1161 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1162 | |
2501 | |
1163 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1164 | } |
|
|
1165 | } |
|
|
1166 | |
|
|
1167 | static void noinline |
|
|
1168 | periodics_reschedule (EV_P) |
|
|
1169 | { |
|
|
1170 | int i; |
|
|
1171 | |
|
|
1172 | /* adjust periodics after time jump */ |
|
|
1173 | for (i = 0; i < periodiccnt; ++i) |
|
|
1174 | { |
|
|
1175 | ev_periodic *w = periodics [i]; |
|
|
1176 | |
|
|
1177 | if (w->reschedule_cb) |
|
|
1178 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1179 | else if (w->interval) |
|
|
1180 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
|
|
1181 | } |
|
|
1182 | |
|
|
1183 | /* now rebuild the heap */ |
|
|
1184 | for (i = periodiccnt >> 1; i--; ) |
|
|
1185 | downheap ((WT *)periodics, periodiccnt, i); |
|
|
1186 | } |
|
|
1187 | #endif |
|
|
1188 | |
|
|
1189 | int inline_size |
|
|
1190 | time_update_monotonic (EV_P) |
|
|
1191 | { |
|
|
1192 | mn_now = get_clock (); |
|
|
1193 | |
|
|
1194 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
|
|
1195 | { |
|
|
1196 | ev_rt_now = rtmn_diff + mn_now; |
|
|
1197 | return 0; |
|
|
1198 | } |
|
|
1199 | else |
|
|
1200 | { |
|
|
1201 | now_floor = mn_now; |
2502 | now_floor = mn_now; |
1202 | ev_rt_now = ev_time (); |
2503 | ev_rt_now = ev_time (); |
1203 | return 1; |
|
|
1204 | } |
|
|
1205 | } |
|
|
1206 | |
2504 | |
1207 | void inline_size |
2505 | /* loop a few times, before making important decisions. |
1208 | time_update (EV_P) |
2506 | * on the choice of "4": one iteration isn't enough, |
1209 | { |
2507 | * in case we get preempted during the calls to |
1210 | int i; |
2508 | * ev_time and get_clock. a second call is almost guaranteed |
1211 | |
2509 | * to succeed in that case, though. and looping a few more times |
1212 | #if EV_USE_MONOTONIC |
2510 | * doesn't hurt either as we only do this on time-jumps or |
1213 | if (expect_true (have_monotonic)) |
2511 | * in the unlikely event of having been preempted here. |
1214 | { |
2512 | */ |
1215 | if (time_update_monotonic (EV_A)) |
2513 | for (i = 4; --i; ) |
1216 | { |
2514 | { |
1217 | ev_tstamp odiff = rtmn_diff; |
2515 | ev_tstamp diff; |
1218 | |
|
|
1219 | /* loop a few times, before making important decisions. |
|
|
1220 | * on the choice of "4": one iteration isn't enough, |
|
|
1221 | * in case we get preempted during the calls to |
|
|
1222 | * ev_time and get_clock. a second call is almost guarenteed |
|
|
1223 | * to succeed in that case, though. and looping a few more times |
|
|
1224 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1225 | * in the unlikely event of getting preempted here. |
|
|
1226 | */ |
|
|
1227 | for (i = 4; --i; ) |
|
|
1228 | { |
|
|
1229 | rtmn_diff = ev_rt_now - mn_now; |
2516 | rtmn_diff = ev_rt_now - mn_now; |
1230 | |
2517 | |
1231 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
2518 | diff = odiff - rtmn_diff; |
|
|
2519 | |
|
|
2520 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
1232 | return; /* all is well */ |
2521 | return; /* all is well */ |
1233 | |
2522 | |
1234 | ev_rt_now = ev_time (); |
2523 | ev_rt_now = ev_time (); |
1235 | mn_now = get_clock (); |
2524 | mn_now = get_clock (); |
1236 | now_floor = mn_now; |
2525 | now_floor = mn_now; |
1237 | } |
2526 | } |
1238 | |
2527 | |
|
|
2528 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2529 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1239 | # if EV_PERIODIC_ENABLE |
2530 | # if EV_PERIODIC_ENABLE |
1240 | periodics_reschedule (EV_A); |
2531 | periodics_reschedule (EV_A); |
1241 | # endif |
2532 | # endif |
1242 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1243 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1244 | } |
|
|
1245 | } |
2533 | } |
1246 | else |
2534 | else |
1247 | #endif |
2535 | #endif |
1248 | { |
2536 | { |
1249 | ev_rt_now = ev_time (); |
2537 | ev_rt_now = ev_time (); |
1250 | |
2538 | |
1251 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
2539 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1252 | { |
2540 | { |
|
|
2541 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2542 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1253 | #if EV_PERIODIC_ENABLE |
2543 | #if EV_PERIODIC_ENABLE |
1254 | periodics_reschedule (EV_A); |
2544 | periodics_reschedule (EV_A); |
1255 | #endif |
2545 | #endif |
1256 | |
|
|
1257 | /* adjust timers. this is easy, as the offset is the same for all */ |
|
|
1258 | for (i = 0; i < timercnt; ++i) |
|
|
1259 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
|
|
1260 | } |
2546 | } |
1261 | |
2547 | |
1262 | mn_now = ev_rt_now; |
2548 | mn_now = ev_rt_now; |
1263 | } |
2549 | } |
1264 | } |
2550 | } |
1265 | |
2551 | |
1266 | void |
2552 | void |
1267 | ev_ref (EV_P) |
|
|
1268 | { |
|
|
1269 | ++activecnt; |
|
|
1270 | } |
|
|
1271 | |
|
|
1272 | void |
|
|
1273 | ev_unref (EV_P) |
|
|
1274 | { |
|
|
1275 | --activecnt; |
|
|
1276 | } |
|
|
1277 | |
|
|
1278 | static int loop_done; |
|
|
1279 | |
|
|
1280 | void |
|
|
1281 | ev_loop (EV_P_ int flags) |
2553 | ev_run (EV_P_ int flags) |
1282 | { |
2554 | { |
1283 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
2555 | #if EV_FEATURE_API |
1284 | ? EVUNLOOP_ONE |
2556 | ++loop_depth; |
1285 | : EVUNLOOP_CANCEL; |
2557 | #endif |
1286 | |
2558 | |
1287 | while (activecnt) |
2559 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
|
|
2560 | |
|
|
2561 | loop_done = EVBREAK_CANCEL; |
|
|
2562 | |
|
|
2563 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
|
|
2564 | |
|
|
2565 | do |
1288 | { |
2566 | { |
1289 | /* we might have forked, so reify kernel state if necessary */ |
2567 | #if EV_VERIFY >= 2 |
|
|
2568 | ev_verify (EV_A); |
|
|
2569 | #endif |
|
|
2570 | |
|
|
2571 | #ifndef _WIN32 |
|
|
2572 | if (expect_false (curpid)) /* penalise the forking check even more */ |
|
|
2573 | if (expect_false (getpid () != curpid)) |
|
|
2574 | { |
|
|
2575 | curpid = getpid (); |
|
|
2576 | postfork = 1; |
|
|
2577 | } |
|
|
2578 | #endif |
|
|
2579 | |
1290 | #if EV_FORK_ENABLE |
2580 | #if EV_FORK_ENABLE |
|
|
2581 | /* we might have forked, so queue fork handlers */ |
1291 | if (expect_false (postfork)) |
2582 | if (expect_false (postfork)) |
1292 | if (forkcnt) |
2583 | if (forkcnt) |
1293 | { |
2584 | { |
1294 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2585 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1295 | call_pending (EV_A); |
2586 | EV_INVOKE_PENDING; |
1296 | } |
2587 | } |
1297 | #endif |
2588 | #endif |
1298 | |
2589 | |
|
|
2590 | #if EV_PREPARE_ENABLE |
1299 | /* queue check watchers (and execute them) */ |
2591 | /* queue prepare watchers (and execute them) */ |
1300 | if (expect_false (preparecnt)) |
2592 | if (expect_false (preparecnt)) |
1301 | { |
2593 | { |
1302 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2594 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1303 | call_pending (EV_A); |
2595 | EV_INVOKE_PENDING; |
1304 | } |
2596 | } |
|
|
2597 | #endif |
|
|
2598 | |
|
|
2599 | if (expect_false (loop_done)) |
|
|
2600 | break; |
1305 | |
2601 | |
1306 | /* we might have forked, so reify kernel state if necessary */ |
2602 | /* we might have forked, so reify kernel state if necessary */ |
1307 | if (expect_false (postfork)) |
2603 | if (expect_false (postfork)) |
1308 | loop_fork (EV_A); |
2604 | loop_fork (EV_A); |
1309 | |
2605 | |
1310 | /* update fd-related kernel structures */ |
2606 | /* update fd-related kernel structures */ |
1311 | fd_reify (EV_A); |
2607 | fd_reify (EV_A); |
1312 | |
2608 | |
1313 | /* calculate blocking time */ |
2609 | /* calculate blocking time */ |
1314 | { |
2610 | { |
1315 | double block; |
2611 | ev_tstamp waittime = 0.; |
|
|
2612 | ev_tstamp sleeptime = 0.; |
1316 | |
2613 | |
1317 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
2614 | /* remember old timestamp for io_blocktime calculation */ |
1318 | block = 0.; /* do not block at all */ |
2615 | ev_tstamp prev_mn_now = mn_now; |
1319 | else |
2616 | |
|
|
2617 | /* update time to cancel out callback processing overhead */ |
|
|
2618 | time_update (EV_A_ 1e100); |
|
|
2619 | |
|
|
2620 | /* from now on, we want a pipe-wake-up */ |
|
|
2621 | pipe_write_wanted = 1; |
|
|
2622 | |
|
|
2623 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
2624 | |
|
|
2625 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
1320 | { |
2626 | { |
1321 | /* update time to cancel out callback processing overhead */ |
|
|
1322 | #if EV_USE_MONOTONIC |
|
|
1323 | if (expect_true (have_monotonic)) |
|
|
1324 | time_update_monotonic (EV_A); |
|
|
1325 | else |
|
|
1326 | #endif |
|
|
1327 | { |
|
|
1328 | ev_rt_now = ev_time (); |
|
|
1329 | mn_now = ev_rt_now; |
|
|
1330 | } |
|
|
1331 | |
|
|
1332 | block = MAX_BLOCKTIME; |
2627 | waittime = MAX_BLOCKTIME; |
1333 | |
2628 | |
1334 | if (timercnt) |
2629 | if (timercnt) |
1335 | { |
2630 | { |
1336 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
2631 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
1337 | if (block > to) block = to; |
2632 | if (waittime > to) waittime = to; |
1338 | } |
2633 | } |
1339 | |
2634 | |
1340 | #if EV_PERIODIC_ENABLE |
2635 | #if EV_PERIODIC_ENABLE |
1341 | if (periodiccnt) |
2636 | if (periodiccnt) |
1342 | { |
2637 | { |
1343 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
2638 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now; |
1344 | if (block > to) block = to; |
2639 | if (waittime > to) waittime = to; |
1345 | } |
2640 | } |
1346 | #endif |
2641 | #endif |
1347 | |
2642 | |
|
|
2643 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
|
|
2644 | if (expect_false (waittime < timeout_blocktime)) |
|
|
2645 | waittime = timeout_blocktime; |
|
|
2646 | |
|
|
2647 | /* at this point, we NEED to wait, so we have to ensure */ |
|
|
2648 | /* to pass a minimum nonzero value to the backend */ |
|
|
2649 | if (expect_false (waittime < backend_mintime)) |
|
|
2650 | waittime = backend_mintime; |
|
|
2651 | |
|
|
2652 | /* extra check because io_blocktime is commonly 0 */ |
1348 | if (expect_false (block < 0.)) block = 0.; |
2653 | if (expect_false (io_blocktime)) |
|
|
2654 | { |
|
|
2655 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2656 | |
|
|
2657 | if (sleeptime > waittime - backend_mintime) |
|
|
2658 | sleeptime = waittime - backend_mintime; |
|
|
2659 | |
|
|
2660 | if (expect_true (sleeptime > 0.)) |
|
|
2661 | { |
|
|
2662 | ev_sleep (sleeptime); |
|
|
2663 | waittime -= sleeptime; |
|
|
2664 | } |
|
|
2665 | } |
1349 | } |
2666 | } |
1350 | |
2667 | |
|
|
2668 | #if EV_FEATURE_API |
|
|
2669 | ++loop_count; |
|
|
2670 | #endif |
|
|
2671 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
1351 | backend_poll (EV_A_ block); |
2672 | backend_poll (EV_A_ waittime); |
|
|
2673 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
|
|
2674 | |
|
|
2675 | pipe_write_wanted = 0; /* just an optimsiation, no fence needed */ |
|
|
2676 | |
|
|
2677 | if (pipe_write_skipped) |
|
|
2678 | { |
|
|
2679 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
2680 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
2681 | } |
|
|
2682 | |
|
|
2683 | |
|
|
2684 | /* update ev_rt_now, do magic */ |
|
|
2685 | time_update (EV_A_ waittime + sleeptime); |
1352 | } |
2686 | } |
1353 | |
|
|
1354 | /* update ev_rt_now, do magic */ |
|
|
1355 | time_update (EV_A); |
|
|
1356 | |
2687 | |
1357 | /* queue pending timers and reschedule them */ |
2688 | /* queue pending timers and reschedule them */ |
1358 | timers_reify (EV_A); /* relative timers called last */ |
2689 | timers_reify (EV_A); /* relative timers called last */ |
1359 | #if EV_PERIODIC_ENABLE |
2690 | #if EV_PERIODIC_ENABLE |
1360 | periodics_reify (EV_A); /* absolute timers called first */ |
2691 | periodics_reify (EV_A); /* absolute timers called first */ |
1361 | #endif |
2692 | #endif |
1362 | |
2693 | |
|
|
2694 | #if EV_IDLE_ENABLE |
1363 | /* queue idle watchers unless other events are pending */ |
2695 | /* queue idle watchers unless other events are pending */ |
1364 | if (idlecnt && !any_pending (EV_A)) |
2696 | idle_reify (EV_A); |
1365 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
2697 | #endif |
1366 | |
2698 | |
|
|
2699 | #if EV_CHECK_ENABLE |
1367 | /* queue check watchers, to be executed first */ |
2700 | /* queue check watchers, to be executed first */ |
1368 | if (expect_false (checkcnt)) |
2701 | if (expect_false (checkcnt)) |
1369 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2702 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
2703 | #endif |
1370 | |
2704 | |
1371 | call_pending (EV_A); |
2705 | EV_INVOKE_PENDING; |
1372 | |
|
|
1373 | if (expect_false (loop_done)) |
|
|
1374 | break; |
|
|
1375 | } |
2706 | } |
|
|
2707 | while (expect_true ( |
|
|
2708 | activecnt |
|
|
2709 | && !loop_done |
|
|
2710 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
|
|
2711 | )); |
1376 | |
2712 | |
1377 | if (loop_done == EVUNLOOP_ONE) |
2713 | if (loop_done == EVBREAK_ONE) |
1378 | loop_done = EVUNLOOP_CANCEL; |
2714 | loop_done = EVBREAK_CANCEL; |
|
|
2715 | |
|
|
2716 | #if EV_FEATURE_API |
|
|
2717 | --loop_depth; |
|
|
2718 | #endif |
1379 | } |
2719 | } |
1380 | |
2720 | |
1381 | void |
2721 | void |
1382 | ev_unloop (EV_P_ int how) |
2722 | ev_break (EV_P_ int how) |
1383 | { |
2723 | { |
1384 | loop_done = how; |
2724 | loop_done = how; |
1385 | } |
2725 | } |
1386 | |
2726 | |
|
|
2727 | void |
|
|
2728 | ev_ref (EV_P) |
|
|
2729 | { |
|
|
2730 | ++activecnt; |
|
|
2731 | } |
|
|
2732 | |
|
|
2733 | void |
|
|
2734 | ev_unref (EV_P) |
|
|
2735 | { |
|
|
2736 | --activecnt; |
|
|
2737 | } |
|
|
2738 | |
|
|
2739 | void |
|
|
2740 | ev_now_update (EV_P) |
|
|
2741 | { |
|
|
2742 | time_update (EV_A_ 1e100); |
|
|
2743 | } |
|
|
2744 | |
|
|
2745 | void |
|
|
2746 | ev_suspend (EV_P) |
|
|
2747 | { |
|
|
2748 | ev_now_update (EV_A); |
|
|
2749 | } |
|
|
2750 | |
|
|
2751 | void |
|
|
2752 | ev_resume (EV_P) |
|
|
2753 | { |
|
|
2754 | ev_tstamp mn_prev = mn_now; |
|
|
2755 | |
|
|
2756 | ev_now_update (EV_A); |
|
|
2757 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2758 | #if EV_PERIODIC_ENABLE |
|
|
2759 | /* TODO: really do this? */ |
|
|
2760 | periodics_reschedule (EV_A); |
|
|
2761 | #endif |
|
|
2762 | } |
|
|
2763 | |
1387 | /*****************************************************************************/ |
2764 | /*****************************************************************************/ |
|
|
2765 | /* singly-linked list management, used when the expected list length is short */ |
1388 | |
2766 | |
1389 | void inline_size |
2767 | inline_size void |
1390 | wlist_add (WL *head, WL elem) |
2768 | wlist_add (WL *head, WL elem) |
1391 | { |
2769 | { |
1392 | elem->next = *head; |
2770 | elem->next = *head; |
1393 | *head = elem; |
2771 | *head = elem; |
1394 | } |
2772 | } |
1395 | |
2773 | |
1396 | void inline_size |
2774 | inline_size void |
1397 | wlist_del (WL *head, WL elem) |
2775 | wlist_del (WL *head, WL elem) |
1398 | { |
2776 | { |
1399 | while (*head) |
2777 | while (*head) |
1400 | { |
2778 | { |
1401 | if (*head == elem) |
2779 | if (expect_true (*head == elem)) |
1402 | { |
2780 | { |
1403 | *head = elem->next; |
2781 | *head = elem->next; |
1404 | return; |
2782 | break; |
1405 | } |
2783 | } |
1406 | |
2784 | |
1407 | head = &(*head)->next; |
2785 | head = &(*head)->next; |
1408 | } |
2786 | } |
1409 | } |
2787 | } |
1410 | |
2788 | |
1411 | void inline_speed |
2789 | /* internal, faster, version of ev_clear_pending */ |
|
|
2790 | inline_speed void |
1412 | ev_clear_pending (EV_P_ W w) |
2791 | clear_pending (EV_P_ W w) |
1413 | { |
2792 | { |
1414 | if (w->pending) |
2793 | if (w->pending) |
1415 | { |
2794 | { |
1416 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2795 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
1417 | w->pending = 0; |
2796 | w->pending = 0; |
1418 | } |
2797 | } |
1419 | } |
2798 | } |
1420 | |
2799 | |
1421 | void inline_speed |
2800 | int |
|
|
2801 | ev_clear_pending (EV_P_ void *w) |
|
|
2802 | { |
|
|
2803 | W w_ = (W)w; |
|
|
2804 | int pending = w_->pending; |
|
|
2805 | |
|
|
2806 | if (expect_true (pending)) |
|
|
2807 | { |
|
|
2808 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2809 | p->w = (W)&pending_w; |
|
|
2810 | w_->pending = 0; |
|
|
2811 | return p->events; |
|
|
2812 | } |
|
|
2813 | else |
|
|
2814 | return 0; |
|
|
2815 | } |
|
|
2816 | |
|
|
2817 | inline_size void |
|
|
2818 | pri_adjust (EV_P_ W w) |
|
|
2819 | { |
|
|
2820 | int pri = ev_priority (w); |
|
|
2821 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
|
|
2822 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
|
|
2823 | ev_set_priority (w, pri); |
|
|
2824 | } |
|
|
2825 | |
|
|
2826 | inline_speed void |
1422 | ev_start (EV_P_ W w, int active) |
2827 | ev_start (EV_P_ W w, int active) |
1423 | { |
2828 | { |
1424 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
2829 | pri_adjust (EV_A_ w); |
1425 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
1426 | |
|
|
1427 | w->active = active; |
2830 | w->active = active; |
1428 | ev_ref (EV_A); |
2831 | ev_ref (EV_A); |
1429 | } |
2832 | } |
1430 | |
2833 | |
1431 | void inline_size |
2834 | inline_size void |
1432 | ev_stop (EV_P_ W w) |
2835 | ev_stop (EV_P_ W w) |
1433 | { |
2836 | { |
1434 | ev_unref (EV_A); |
2837 | ev_unref (EV_A); |
1435 | w->active = 0; |
2838 | w->active = 0; |
1436 | } |
2839 | } |
1437 | |
2840 | |
1438 | /*****************************************************************************/ |
2841 | /*****************************************************************************/ |
1439 | |
2842 | |
1440 | void |
2843 | void noinline |
1441 | ev_io_start (EV_P_ ev_io *w) |
2844 | ev_io_start (EV_P_ ev_io *w) |
1442 | { |
2845 | { |
1443 | int fd = w->fd; |
2846 | int fd = w->fd; |
1444 | |
2847 | |
1445 | if (expect_false (ev_is_active (w))) |
2848 | if (expect_false (ev_is_active (w))) |
1446 | return; |
2849 | return; |
1447 | |
2850 | |
1448 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2851 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2852 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
|
|
2853 | |
|
|
2854 | EV_FREQUENT_CHECK; |
1449 | |
2855 | |
1450 | ev_start (EV_A_ (W)w, 1); |
2856 | ev_start (EV_A_ (W)w, 1); |
1451 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2857 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
1452 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
2858 | wlist_add (&anfds[fd].head, (WL)w); |
1453 | |
2859 | |
1454 | fd_change (EV_A_ fd); |
2860 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
1455 | } |
2861 | w->events &= ~EV__IOFDSET; |
1456 | |
2862 | |
1457 | void |
2863 | EV_FREQUENT_CHECK; |
|
|
2864 | } |
|
|
2865 | |
|
|
2866 | void noinline |
1458 | ev_io_stop (EV_P_ ev_io *w) |
2867 | ev_io_stop (EV_P_ ev_io *w) |
1459 | { |
2868 | { |
1460 | ev_clear_pending (EV_A_ (W)w); |
2869 | clear_pending (EV_A_ (W)w); |
1461 | if (expect_false (!ev_is_active (w))) |
2870 | if (expect_false (!ev_is_active (w))) |
1462 | return; |
2871 | return; |
1463 | |
2872 | |
1464 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2873 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1465 | |
2874 | |
|
|
2875 | EV_FREQUENT_CHECK; |
|
|
2876 | |
1466 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
2877 | wlist_del (&anfds[w->fd].head, (WL)w); |
1467 | ev_stop (EV_A_ (W)w); |
2878 | ev_stop (EV_A_ (W)w); |
1468 | |
2879 | |
1469 | fd_change (EV_A_ w->fd); |
2880 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
1470 | } |
|
|
1471 | |
2881 | |
1472 | void |
2882 | EV_FREQUENT_CHECK; |
|
|
2883 | } |
|
|
2884 | |
|
|
2885 | void noinline |
1473 | ev_timer_start (EV_P_ ev_timer *w) |
2886 | ev_timer_start (EV_P_ ev_timer *w) |
1474 | { |
2887 | { |
1475 | if (expect_false (ev_is_active (w))) |
2888 | if (expect_false (ev_is_active (w))) |
1476 | return; |
2889 | return; |
1477 | |
2890 | |
1478 | ((WT)w)->at += mn_now; |
2891 | ev_at (w) += mn_now; |
1479 | |
2892 | |
1480 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2893 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1481 | |
2894 | |
|
|
2895 | EV_FREQUENT_CHECK; |
|
|
2896 | |
|
|
2897 | ++timercnt; |
1482 | ev_start (EV_A_ (W)w, ++timercnt); |
2898 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1483 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
2899 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1484 | timers [timercnt - 1] = w; |
2900 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1485 | upheap ((WT *)timers, timercnt - 1); |
2901 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
2902 | upheap (timers, ev_active (w)); |
1486 | |
2903 | |
|
|
2904 | EV_FREQUENT_CHECK; |
|
|
2905 | |
1487 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
2906 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1488 | } |
2907 | } |
1489 | |
2908 | |
1490 | void |
2909 | void noinline |
1491 | ev_timer_stop (EV_P_ ev_timer *w) |
2910 | ev_timer_stop (EV_P_ ev_timer *w) |
1492 | { |
2911 | { |
1493 | ev_clear_pending (EV_A_ (W)w); |
2912 | clear_pending (EV_A_ (W)w); |
1494 | if (expect_false (!ev_is_active (w))) |
2913 | if (expect_false (!ev_is_active (w))) |
1495 | return; |
2914 | return; |
1496 | |
2915 | |
1497 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
2916 | EV_FREQUENT_CHECK; |
1498 | |
2917 | |
1499 | { |
2918 | { |
1500 | int active = ((W)w)->active; |
2919 | int active = ev_active (w); |
1501 | |
2920 | |
|
|
2921 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
2922 | |
|
|
2923 | --timercnt; |
|
|
2924 | |
1502 | if (expect_true (--active < --timercnt)) |
2925 | if (expect_true (active < timercnt + HEAP0)) |
1503 | { |
2926 | { |
1504 | timers [active] = timers [timercnt]; |
2927 | timers [active] = timers [timercnt + HEAP0]; |
1505 | adjustheap ((WT *)timers, timercnt, active); |
2928 | adjustheap (timers, timercnt, active); |
1506 | } |
2929 | } |
1507 | } |
2930 | } |
1508 | |
2931 | |
1509 | ((WT)w)->at -= mn_now; |
2932 | ev_at (w) -= mn_now; |
1510 | |
2933 | |
1511 | ev_stop (EV_A_ (W)w); |
2934 | ev_stop (EV_A_ (W)w); |
1512 | } |
|
|
1513 | |
2935 | |
1514 | void |
2936 | EV_FREQUENT_CHECK; |
|
|
2937 | } |
|
|
2938 | |
|
|
2939 | void noinline |
1515 | ev_timer_again (EV_P_ ev_timer *w) |
2940 | ev_timer_again (EV_P_ ev_timer *w) |
1516 | { |
2941 | { |
|
|
2942 | EV_FREQUENT_CHECK; |
|
|
2943 | |
1517 | if (ev_is_active (w)) |
2944 | if (ev_is_active (w)) |
1518 | { |
2945 | { |
1519 | if (w->repeat) |
2946 | if (w->repeat) |
1520 | { |
2947 | { |
1521 | ((WT)w)->at = mn_now + w->repeat; |
2948 | ev_at (w) = mn_now + w->repeat; |
|
|
2949 | ANHE_at_cache (timers [ev_active (w)]); |
1522 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
2950 | adjustheap (timers, timercnt, ev_active (w)); |
1523 | } |
2951 | } |
1524 | else |
2952 | else |
1525 | ev_timer_stop (EV_A_ w); |
2953 | ev_timer_stop (EV_A_ w); |
1526 | } |
2954 | } |
1527 | else if (w->repeat) |
2955 | else if (w->repeat) |
1528 | { |
2956 | { |
1529 | w->at = w->repeat; |
2957 | ev_at (w) = w->repeat; |
1530 | ev_timer_start (EV_A_ w); |
2958 | ev_timer_start (EV_A_ w); |
1531 | } |
2959 | } |
|
|
2960 | |
|
|
2961 | EV_FREQUENT_CHECK; |
|
|
2962 | } |
|
|
2963 | |
|
|
2964 | ev_tstamp |
|
|
2965 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2966 | { |
|
|
2967 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
1532 | } |
2968 | } |
1533 | |
2969 | |
1534 | #if EV_PERIODIC_ENABLE |
2970 | #if EV_PERIODIC_ENABLE |
1535 | void |
2971 | void noinline |
1536 | ev_periodic_start (EV_P_ ev_periodic *w) |
2972 | ev_periodic_start (EV_P_ ev_periodic *w) |
1537 | { |
2973 | { |
1538 | if (expect_false (ev_is_active (w))) |
2974 | if (expect_false (ev_is_active (w))) |
1539 | return; |
2975 | return; |
1540 | |
2976 | |
1541 | if (w->reschedule_cb) |
2977 | if (w->reschedule_cb) |
1542 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2978 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1543 | else if (w->interval) |
2979 | else if (w->interval) |
1544 | { |
2980 | { |
1545 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2981 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1546 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2982 | periodic_recalc (EV_A_ w); |
1547 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
|
|
1548 | } |
2983 | } |
|
|
2984 | else |
|
|
2985 | ev_at (w) = w->offset; |
1549 | |
2986 | |
|
|
2987 | EV_FREQUENT_CHECK; |
|
|
2988 | |
|
|
2989 | ++periodiccnt; |
1550 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2990 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
1551 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
2991 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1552 | periodics [periodiccnt - 1] = w; |
2992 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1553 | upheap ((WT *)periodics, periodiccnt - 1); |
2993 | ANHE_at_cache (periodics [ev_active (w)]); |
|
|
2994 | upheap (periodics, ev_active (w)); |
1554 | |
2995 | |
|
|
2996 | EV_FREQUENT_CHECK; |
|
|
2997 | |
1555 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
2998 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1556 | } |
2999 | } |
1557 | |
3000 | |
1558 | void |
3001 | void noinline |
1559 | ev_periodic_stop (EV_P_ ev_periodic *w) |
3002 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1560 | { |
3003 | { |
1561 | ev_clear_pending (EV_A_ (W)w); |
3004 | clear_pending (EV_A_ (W)w); |
1562 | if (expect_false (!ev_is_active (w))) |
3005 | if (expect_false (!ev_is_active (w))) |
1563 | return; |
3006 | return; |
1564 | |
3007 | |
1565 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
3008 | EV_FREQUENT_CHECK; |
1566 | |
3009 | |
1567 | { |
3010 | { |
1568 | int active = ((W)w)->active; |
3011 | int active = ev_active (w); |
1569 | |
3012 | |
|
|
3013 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
|
|
3014 | |
|
|
3015 | --periodiccnt; |
|
|
3016 | |
1570 | if (expect_true (--active < --periodiccnt)) |
3017 | if (expect_true (active < periodiccnt + HEAP0)) |
1571 | { |
3018 | { |
1572 | periodics [active] = periodics [periodiccnt]; |
3019 | periodics [active] = periodics [periodiccnt + HEAP0]; |
1573 | adjustheap ((WT *)periodics, periodiccnt, active); |
3020 | adjustheap (periodics, periodiccnt, active); |
1574 | } |
3021 | } |
1575 | } |
3022 | } |
1576 | |
3023 | |
1577 | ev_stop (EV_A_ (W)w); |
3024 | ev_stop (EV_A_ (W)w); |
1578 | } |
|
|
1579 | |
3025 | |
1580 | void |
3026 | EV_FREQUENT_CHECK; |
|
|
3027 | } |
|
|
3028 | |
|
|
3029 | void noinline |
1581 | ev_periodic_again (EV_P_ ev_periodic *w) |
3030 | ev_periodic_again (EV_P_ ev_periodic *w) |
1582 | { |
3031 | { |
1583 | /* TODO: use adjustheap and recalculation */ |
3032 | /* TODO: use adjustheap and recalculation */ |
1584 | ev_periodic_stop (EV_A_ w); |
3033 | ev_periodic_stop (EV_A_ w); |
1585 | ev_periodic_start (EV_A_ w); |
3034 | ev_periodic_start (EV_A_ w); |
… | |
… | |
1588 | |
3037 | |
1589 | #ifndef SA_RESTART |
3038 | #ifndef SA_RESTART |
1590 | # define SA_RESTART 0 |
3039 | # define SA_RESTART 0 |
1591 | #endif |
3040 | #endif |
1592 | |
3041 | |
1593 | void |
3042 | #if EV_SIGNAL_ENABLE |
|
|
3043 | |
|
|
3044 | void noinline |
1594 | ev_signal_start (EV_P_ ev_signal *w) |
3045 | ev_signal_start (EV_P_ ev_signal *w) |
1595 | { |
3046 | { |
1596 | #if EV_MULTIPLICITY |
|
|
1597 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1598 | #endif |
|
|
1599 | if (expect_false (ev_is_active (w))) |
3047 | if (expect_false (ev_is_active (w))) |
1600 | return; |
3048 | return; |
1601 | |
3049 | |
1602 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
3050 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
|
|
3051 | |
|
|
3052 | #if EV_MULTIPLICITY |
|
|
3053 | assert (("libev: a signal must not be attached to two different loops", |
|
|
3054 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
|
|
3055 | |
|
|
3056 | signals [w->signum - 1].loop = EV_A; |
|
|
3057 | #endif |
|
|
3058 | |
|
|
3059 | EV_FREQUENT_CHECK; |
|
|
3060 | |
|
|
3061 | #if EV_USE_SIGNALFD |
|
|
3062 | if (sigfd == -2) |
|
|
3063 | { |
|
|
3064 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
|
|
3065 | if (sigfd < 0 && errno == EINVAL) |
|
|
3066 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
|
|
3067 | |
|
|
3068 | if (sigfd >= 0) |
|
|
3069 | { |
|
|
3070 | fd_intern (sigfd); /* doing it twice will not hurt */ |
|
|
3071 | |
|
|
3072 | sigemptyset (&sigfd_set); |
|
|
3073 | |
|
|
3074 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
3075 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
3076 | ev_io_start (EV_A_ &sigfd_w); |
|
|
3077 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
3078 | } |
|
|
3079 | } |
|
|
3080 | |
|
|
3081 | if (sigfd >= 0) |
|
|
3082 | { |
|
|
3083 | /* TODO: check .head */ |
|
|
3084 | sigaddset (&sigfd_set, w->signum); |
|
|
3085 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
3086 | |
|
|
3087 | signalfd (sigfd, &sigfd_set, 0); |
|
|
3088 | } |
|
|
3089 | #endif |
1603 | |
3090 | |
1604 | ev_start (EV_A_ (W)w, 1); |
3091 | ev_start (EV_A_ (W)w, 1); |
1605 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1606 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
3092 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1607 | |
3093 | |
1608 | if (!((WL)w)->next) |
3094 | if (!((WL)w)->next) |
|
|
3095 | # if EV_USE_SIGNALFD |
|
|
3096 | if (sigfd < 0) /*TODO*/ |
|
|
3097 | # endif |
1609 | { |
3098 | { |
1610 | #if _WIN32 |
3099 | # ifdef _WIN32 |
|
|
3100 | evpipe_init (EV_A); |
|
|
3101 | |
1611 | signal (w->signum, sighandler); |
3102 | signal (w->signum, ev_sighandler); |
1612 | #else |
3103 | # else |
1613 | struct sigaction sa; |
3104 | struct sigaction sa; |
|
|
3105 | |
|
|
3106 | evpipe_init (EV_A); |
|
|
3107 | |
1614 | sa.sa_handler = sighandler; |
3108 | sa.sa_handler = ev_sighandler; |
1615 | sigfillset (&sa.sa_mask); |
3109 | sigfillset (&sa.sa_mask); |
1616 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
3110 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1617 | sigaction (w->signum, &sa, 0); |
3111 | sigaction (w->signum, &sa, 0); |
|
|
3112 | |
|
|
3113 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
3114 | { |
|
|
3115 | sigemptyset (&sa.sa_mask); |
|
|
3116 | sigaddset (&sa.sa_mask, w->signum); |
|
|
3117 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
3118 | } |
1618 | #endif |
3119 | #endif |
1619 | } |
3120 | } |
1620 | } |
|
|
1621 | |
3121 | |
1622 | void |
3122 | EV_FREQUENT_CHECK; |
|
|
3123 | } |
|
|
3124 | |
|
|
3125 | void noinline |
1623 | ev_signal_stop (EV_P_ ev_signal *w) |
3126 | ev_signal_stop (EV_P_ ev_signal *w) |
1624 | { |
3127 | { |
1625 | ev_clear_pending (EV_A_ (W)w); |
3128 | clear_pending (EV_A_ (W)w); |
1626 | if (expect_false (!ev_is_active (w))) |
3129 | if (expect_false (!ev_is_active (w))) |
1627 | return; |
3130 | return; |
1628 | |
3131 | |
|
|
3132 | EV_FREQUENT_CHECK; |
|
|
3133 | |
1629 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
3134 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1630 | ev_stop (EV_A_ (W)w); |
3135 | ev_stop (EV_A_ (W)w); |
1631 | |
3136 | |
1632 | if (!signals [w->signum - 1].head) |
3137 | if (!signals [w->signum - 1].head) |
|
|
3138 | { |
|
|
3139 | #if EV_MULTIPLICITY |
|
|
3140 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
3141 | #endif |
|
|
3142 | #if EV_USE_SIGNALFD |
|
|
3143 | if (sigfd >= 0) |
|
|
3144 | { |
|
|
3145 | sigset_t ss; |
|
|
3146 | |
|
|
3147 | sigemptyset (&ss); |
|
|
3148 | sigaddset (&ss, w->signum); |
|
|
3149 | sigdelset (&sigfd_set, w->signum); |
|
|
3150 | |
|
|
3151 | signalfd (sigfd, &sigfd_set, 0); |
|
|
3152 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
3153 | } |
|
|
3154 | else |
|
|
3155 | #endif |
1633 | signal (w->signum, SIG_DFL); |
3156 | signal (w->signum, SIG_DFL); |
|
|
3157 | } |
|
|
3158 | |
|
|
3159 | EV_FREQUENT_CHECK; |
1634 | } |
3160 | } |
|
|
3161 | |
|
|
3162 | #endif |
|
|
3163 | |
|
|
3164 | #if EV_CHILD_ENABLE |
1635 | |
3165 | |
1636 | void |
3166 | void |
1637 | ev_child_start (EV_P_ ev_child *w) |
3167 | ev_child_start (EV_P_ ev_child *w) |
1638 | { |
3168 | { |
1639 | #if EV_MULTIPLICITY |
3169 | #if EV_MULTIPLICITY |
1640 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3170 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1641 | #endif |
3171 | #endif |
1642 | if (expect_false (ev_is_active (w))) |
3172 | if (expect_false (ev_is_active (w))) |
1643 | return; |
3173 | return; |
1644 | |
3174 | |
|
|
3175 | EV_FREQUENT_CHECK; |
|
|
3176 | |
1645 | ev_start (EV_A_ (W)w, 1); |
3177 | ev_start (EV_A_ (W)w, 1); |
1646 | wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
3178 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
|
|
3179 | |
|
|
3180 | EV_FREQUENT_CHECK; |
1647 | } |
3181 | } |
1648 | |
3182 | |
1649 | void |
3183 | void |
1650 | ev_child_stop (EV_P_ ev_child *w) |
3184 | ev_child_stop (EV_P_ ev_child *w) |
1651 | { |
3185 | { |
1652 | ev_clear_pending (EV_A_ (W)w); |
3186 | clear_pending (EV_A_ (W)w); |
1653 | if (expect_false (!ev_is_active (w))) |
3187 | if (expect_false (!ev_is_active (w))) |
1654 | return; |
3188 | return; |
1655 | |
3189 | |
|
|
3190 | EV_FREQUENT_CHECK; |
|
|
3191 | |
1656 | wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
3192 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
1657 | ev_stop (EV_A_ (W)w); |
3193 | ev_stop (EV_A_ (W)w); |
|
|
3194 | |
|
|
3195 | EV_FREQUENT_CHECK; |
1658 | } |
3196 | } |
|
|
3197 | |
|
|
3198 | #endif |
1659 | |
3199 | |
1660 | #if EV_STAT_ENABLE |
3200 | #if EV_STAT_ENABLE |
1661 | |
3201 | |
1662 | # ifdef _WIN32 |
3202 | # ifdef _WIN32 |
1663 | # undef lstat |
3203 | # undef lstat |
1664 | # define lstat(a,b) _stati64 (a,b) |
3204 | # define lstat(a,b) _stati64 (a,b) |
1665 | # endif |
3205 | # endif |
1666 | |
3206 | |
1667 | #define DEF_STAT_INTERVAL 5.0074891 |
3207 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
3208 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
1668 | #define MIN_STAT_INTERVAL 0.1074891 |
3209 | #define MIN_STAT_INTERVAL 0.1074891 |
|
|
3210 | |
|
|
3211 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
|
|
3212 | |
|
|
3213 | #if EV_USE_INOTIFY |
|
|
3214 | |
|
|
3215 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
3216 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
|
|
3217 | |
|
|
3218 | static void noinline |
|
|
3219 | infy_add (EV_P_ ev_stat *w) |
|
|
3220 | { |
|
|
3221 | 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); |
|
|
3222 | |
|
|
3223 | if (w->wd >= 0) |
|
|
3224 | { |
|
|
3225 | struct statfs sfs; |
|
|
3226 | |
|
|
3227 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
3228 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
3229 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
3230 | |
|
|
3231 | if (!fs_2625) |
|
|
3232 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3233 | else if (!statfs (w->path, &sfs) |
|
|
3234 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
3235 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
3236 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
3237 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
3238 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
3239 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
3240 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
3241 | else |
|
|
3242 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
|
|
3243 | } |
|
|
3244 | else |
|
|
3245 | { |
|
|
3246 | /* can't use inotify, continue to stat */ |
|
|
3247 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3248 | |
|
|
3249 | /* if path is not there, monitor some parent directory for speedup hints */ |
|
|
3250 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
|
|
3251 | /* but an efficiency issue only */ |
|
|
3252 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
|
|
3253 | { |
|
|
3254 | char path [4096]; |
|
|
3255 | strcpy (path, w->path); |
|
|
3256 | |
|
|
3257 | do |
|
|
3258 | { |
|
|
3259 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
|
|
3260 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
|
|
3261 | |
|
|
3262 | char *pend = strrchr (path, '/'); |
|
|
3263 | |
|
|
3264 | if (!pend || pend == path) |
|
|
3265 | break; |
|
|
3266 | |
|
|
3267 | *pend = 0; |
|
|
3268 | w->wd = inotify_add_watch (fs_fd, path, mask); |
|
|
3269 | } |
|
|
3270 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
|
|
3271 | } |
|
|
3272 | } |
|
|
3273 | |
|
|
3274 | if (w->wd >= 0) |
|
|
3275 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
|
|
3276 | |
|
|
3277 | /* now re-arm timer, if required */ |
|
|
3278 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
|
|
3279 | ev_timer_again (EV_A_ &w->timer); |
|
|
3280 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3281 | } |
|
|
3282 | |
|
|
3283 | static void noinline |
|
|
3284 | infy_del (EV_P_ ev_stat *w) |
|
|
3285 | { |
|
|
3286 | int slot; |
|
|
3287 | int wd = w->wd; |
|
|
3288 | |
|
|
3289 | if (wd < 0) |
|
|
3290 | return; |
|
|
3291 | |
|
|
3292 | w->wd = -2; |
|
|
3293 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
|
|
3294 | wlist_del (&fs_hash [slot].head, (WL)w); |
|
|
3295 | |
|
|
3296 | /* remove this watcher, if others are watching it, they will rearm */ |
|
|
3297 | inotify_rm_watch (fs_fd, wd); |
|
|
3298 | } |
|
|
3299 | |
|
|
3300 | static void noinline |
|
|
3301 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
|
|
3302 | { |
|
|
3303 | if (slot < 0) |
|
|
3304 | /* overflow, need to check for all hash slots */ |
|
|
3305 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
|
|
3306 | infy_wd (EV_A_ slot, wd, ev); |
|
|
3307 | else |
|
|
3308 | { |
|
|
3309 | WL w_; |
|
|
3310 | |
|
|
3311 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
|
|
3312 | { |
|
|
3313 | ev_stat *w = (ev_stat *)w_; |
|
|
3314 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
|
|
3315 | |
|
|
3316 | if (w->wd == wd || wd == -1) |
|
|
3317 | { |
|
|
3318 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
|
|
3319 | { |
|
|
3320 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
|
|
3321 | w->wd = -1; |
|
|
3322 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
3323 | } |
|
|
3324 | |
|
|
3325 | stat_timer_cb (EV_A_ &w->timer, 0); |
|
|
3326 | } |
|
|
3327 | } |
|
|
3328 | } |
|
|
3329 | } |
|
|
3330 | |
|
|
3331 | static void |
|
|
3332 | infy_cb (EV_P_ ev_io *w, int revents) |
|
|
3333 | { |
|
|
3334 | char buf [EV_INOTIFY_BUFSIZE]; |
|
|
3335 | int ofs; |
|
|
3336 | int len = read (fs_fd, buf, sizeof (buf)); |
|
|
3337 | |
|
|
3338 | for (ofs = 0; ofs < len; ) |
|
|
3339 | { |
|
|
3340 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
|
|
3341 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3342 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3343 | } |
|
|
3344 | } |
|
|
3345 | |
|
|
3346 | inline_size void ecb_cold |
|
|
3347 | ev_check_2625 (EV_P) |
|
|
3348 | { |
|
|
3349 | /* kernels < 2.6.25 are borked |
|
|
3350 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
3351 | */ |
|
|
3352 | if (ev_linux_version () < 0x020619) |
|
|
3353 | return; |
|
|
3354 | |
|
|
3355 | fs_2625 = 1; |
|
|
3356 | } |
|
|
3357 | |
|
|
3358 | inline_size int |
|
|
3359 | infy_newfd (void) |
|
|
3360 | { |
|
|
3361 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3362 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3363 | if (fd >= 0) |
|
|
3364 | return fd; |
|
|
3365 | #endif |
|
|
3366 | return inotify_init (); |
|
|
3367 | } |
|
|
3368 | |
|
|
3369 | inline_size void |
|
|
3370 | infy_init (EV_P) |
|
|
3371 | { |
|
|
3372 | if (fs_fd != -2) |
|
|
3373 | return; |
|
|
3374 | |
|
|
3375 | fs_fd = -1; |
|
|
3376 | |
|
|
3377 | ev_check_2625 (EV_A); |
|
|
3378 | |
|
|
3379 | fs_fd = infy_newfd (); |
|
|
3380 | |
|
|
3381 | if (fs_fd >= 0) |
|
|
3382 | { |
|
|
3383 | fd_intern (fs_fd); |
|
|
3384 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
|
|
3385 | ev_set_priority (&fs_w, EV_MAXPRI); |
|
|
3386 | ev_io_start (EV_A_ &fs_w); |
|
|
3387 | ev_unref (EV_A); |
|
|
3388 | } |
|
|
3389 | } |
|
|
3390 | |
|
|
3391 | inline_size void |
|
|
3392 | infy_fork (EV_P) |
|
|
3393 | { |
|
|
3394 | int slot; |
|
|
3395 | |
|
|
3396 | if (fs_fd < 0) |
|
|
3397 | return; |
|
|
3398 | |
|
|
3399 | ev_ref (EV_A); |
|
|
3400 | ev_io_stop (EV_A_ &fs_w); |
|
|
3401 | close (fs_fd); |
|
|
3402 | fs_fd = infy_newfd (); |
|
|
3403 | |
|
|
3404 | if (fs_fd >= 0) |
|
|
3405 | { |
|
|
3406 | fd_intern (fs_fd); |
|
|
3407 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3408 | ev_io_start (EV_A_ &fs_w); |
|
|
3409 | ev_unref (EV_A); |
|
|
3410 | } |
|
|
3411 | |
|
|
3412 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
|
|
3413 | { |
|
|
3414 | WL w_ = fs_hash [slot].head; |
|
|
3415 | fs_hash [slot].head = 0; |
|
|
3416 | |
|
|
3417 | while (w_) |
|
|
3418 | { |
|
|
3419 | ev_stat *w = (ev_stat *)w_; |
|
|
3420 | w_ = w_->next; /* lets us add this watcher */ |
|
|
3421 | |
|
|
3422 | w->wd = -1; |
|
|
3423 | |
|
|
3424 | if (fs_fd >= 0) |
|
|
3425 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
3426 | else |
|
|
3427 | { |
|
|
3428 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3429 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
|
|
3430 | ev_timer_again (EV_A_ &w->timer); |
|
|
3431 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3432 | } |
|
|
3433 | } |
|
|
3434 | } |
|
|
3435 | } |
|
|
3436 | |
|
|
3437 | #endif |
|
|
3438 | |
|
|
3439 | #ifdef _WIN32 |
|
|
3440 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
3441 | #else |
|
|
3442 | # define EV_LSTAT(p,b) lstat (p, b) |
|
|
3443 | #endif |
1669 | |
3444 | |
1670 | void |
3445 | void |
1671 | ev_stat_stat (EV_P_ ev_stat *w) |
3446 | ev_stat_stat (EV_P_ ev_stat *w) |
1672 | { |
3447 | { |
1673 | if (lstat (w->path, &w->attr) < 0) |
3448 | if (lstat (w->path, &w->attr) < 0) |
1674 | w->attr.st_nlink = 0; |
3449 | w->attr.st_nlink = 0; |
1675 | else if (!w->attr.st_nlink) |
3450 | else if (!w->attr.st_nlink) |
1676 | w->attr.st_nlink = 1; |
3451 | w->attr.st_nlink = 1; |
1677 | } |
3452 | } |
1678 | |
3453 | |
1679 | static void |
3454 | static void noinline |
1680 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3455 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
1681 | { |
3456 | { |
1682 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3457 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
1683 | |
3458 | |
1684 | /* we copy this here each the time so that */ |
3459 | ev_statdata prev = w->attr; |
1685 | /* prev has the old value when the callback gets invoked */ |
|
|
1686 | w->prev = w->attr; |
|
|
1687 | ev_stat_stat (EV_A_ w); |
3460 | ev_stat_stat (EV_A_ w); |
1688 | |
3461 | |
1689 | if (memcmp (&w->prev, &w->attr, sizeof (ev_statdata))) |
3462 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
|
|
3463 | if ( |
|
|
3464 | prev.st_dev != w->attr.st_dev |
|
|
3465 | || prev.st_ino != w->attr.st_ino |
|
|
3466 | || prev.st_mode != w->attr.st_mode |
|
|
3467 | || prev.st_nlink != w->attr.st_nlink |
|
|
3468 | || prev.st_uid != w->attr.st_uid |
|
|
3469 | || prev.st_gid != w->attr.st_gid |
|
|
3470 | || prev.st_rdev != w->attr.st_rdev |
|
|
3471 | || prev.st_size != w->attr.st_size |
|
|
3472 | || prev.st_atime != w->attr.st_atime |
|
|
3473 | || prev.st_mtime != w->attr.st_mtime |
|
|
3474 | || prev.st_ctime != w->attr.st_ctime |
|
|
3475 | ) { |
|
|
3476 | /* we only update w->prev on actual differences */ |
|
|
3477 | /* in case we test more often than invoke the callback, */ |
|
|
3478 | /* to ensure that prev is always different to attr */ |
|
|
3479 | w->prev = prev; |
|
|
3480 | |
|
|
3481 | #if EV_USE_INOTIFY |
|
|
3482 | if (fs_fd >= 0) |
|
|
3483 | { |
|
|
3484 | infy_del (EV_A_ w); |
|
|
3485 | infy_add (EV_A_ w); |
|
|
3486 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
3487 | } |
|
|
3488 | #endif |
|
|
3489 | |
1690 | ev_feed_event (EV_A_ w, EV_STAT); |
3490 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
3491 | } |
1691 | } |
3492 | } |
1692 | |
3493 | |
1693 | void |
3494 | void |
1694 | ev_stat_start (EV_P_ ev_stat *w) |
3495 | ev_stat_start (EV_P_ ev_stat *w) |
1695 | { |
3496 | { |
1696 | if (expect_false (ev_is_active (w))) |
3497 | if (expect_false (ev_is_active (w))) |
1697 | return; |
3498 | return; |
1698 | |
3499 | |
1699 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
1700 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
1701 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
1702 | |
|
|
1703 | ev_stat_stat (EV_A_ w); |
3500 | ev_stat_stat (EV_A_ w); |
1704 | |
3501 | |
|
|
3502 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
1705 | if (w->interval < MIN_STAT_INTERVAL) |
3503 | w->interval = MIN_STAT_INTERVAL; |
1706 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
1707 | |
3504 | |
1708 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
3505 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
1709 | ev_set_priority (&w->timer, ev_priority (w)); |
3506 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
3507 | |
|
|
3508 | #if EV_USE_INOTIFY |
|
|
3509 | infy_init (EV_A); |
|
|
3510 | |
|
|
3511 | if (fs_fd >= 0) |
|
|
3512 | infy_add (EV_A_ w); |
|
|
3513 | else |
|
|
3514 | #endif |
|
|
3515 | { |
1710 | ev_timer_start (EV_A_ &w->timer); |
3516 | ev_timer_again (EV_A_ &w->timer); |
|
|
3517 | ev_unref (EV_A); |
|
|
3518 | } |
1711 | |
3519 | |
1712 | ev_start (EV_A_ (W)w, 1); |
3520 | ev_start (EV_A_ (W)w, 1); |
|
|
3521 | |
|
|
3522 | EV_FREQUENT_CHECK; |
1713 | } |
3523 | } |
1714 | |
3524 | |
1715 | void |
3525 | void |
1716 | ev_stat_stop (EV_P_ ev_stat *w) |
3526 | ev_stat_stop (EV_P_ ev_stat *w) |
1717 | { |
3527 | { |
1718 | ev_clear_pending (EV_A_ (W)w); |
3528 | clear_pending (EV_A_ (W)w); |
1719 | if (expect_false (!ev_is_active (w))) |
3529 | if (expect_false (!ev_is_active (w))) |
1720 | return; |
3530 | return; |
1721 | |
3531 | |
|
|
3532 | EV_FREQUENT_CHECK; |
|
|
3533 | |
|
|
3534 | #if EV_USE_INOTIFY |
|
|
3535 | infy_del (EV_A_ w); |
|
|
3536 | #endif |
|
|
3537 | |
|
|
3538 | if (ev_is_active (&w->timer)) |
|
|
3539 | { |
|
|
3540 | ev_ref (EV_A); |
1722 | ev_timer_stop (EV_A_ &w->timer); |
3541 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3542 | } |
1723 | |
3543 | |
1724 | ev_stop (EV_A_ (W)w); |
3544 | ev_stop (EV_A_ (W)w); |
1725 | } |
|
|
1726 | #endif |
|
|
1727 | |
3545 | |
|
|
3546 | EV_FREQUENT_CHECK; |
|
|
3547 | } |
|
|
3548 | #endif |
|
|
3549 | |
|
|
3550 | #if EV_IDLE_ENABLE |
1728 | void |
3551 | void |
1729 | ev_idle_start (EV_P_ ev_idle *w) |
3552 | ev_idle_start (EV_P_ ev_idle *w) |
1730 | { |
3553 | { |
1731 | if (expect_false (ev_is_active (w))) |
3554 | if (expect_false (ev_is_active (w))) |
1732 | return; |
3555 | return; |
1733 | |
3556 | |
|
|
3557 | pri_adjust (EV_A_ (W)w); |
|
|
3558 | |
|
|
3559 | EV_FREQUENT_CHECK; |
|
|
3560 | |
|
|
3561 | { |
|
|
3562 | int active = ++idlecnt [ABSPRI (w)]; |
|
|
3563 | |
|
|
3564 | ++idleall; |
1734 | ev_start (EV_A_ (W)w, ++idlecnt); |
3565 | ev_start (EV_A_ (W)w, active); |
|
|
3566 | |
1735 | array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2); |
3567 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
1736 | idles [idlecnt - 1] = w; |
3568 | idles [ABSPRI (w)][active - 1] = w; |
|
|
3569 | } |
|
|
3570 | |
|
|
3571 | EV_FREQUENT_CHECK; |
1737 | } |
3572 | } |
1738 | |
3573 | |
1739 | void |
3574 | void |
1740 | ev_idle_stop (EV_P_ ev_idle *w) |
3575 | ev_idle_stop (EV_P_ ev_idle *w) |
1741 | { |
3576 | { |
1742 | ev_clear_pending (EV_A_ (W)w); |
3577 | clear_pending (EV_A_ (W)w); |
1743 | if (expect_false (!ev_is_active (w))) |
3578 | if (expect_false (!ev_is_active (w))) |
1744 | return; |
3579 | return; |
1745 | |
3580 | |
|
|
3581 | EV_FREQUENT_CHECK; |
|
|
3582 | |
1746 | { |
3583 | { |
1747 | int active = ((W)w)->active; |
3584 | int active = ev_active (w); |
1748 | idles [active - 1] = idles [--idlecnt]; |
3585 | |
1749 | ((W)idles [active - 1])->active = active; |
3586 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
|
|
3587 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
|
|
3588 | |
|
|
3589 | ev_stop (EV_A_ (W)w); |
|
|
3590 | --idleall; |
1750 | } |
3591 | } |
1751 | |
3592 | |
1752 | ev_stop (EV_A_ (W)w); |
3593 | EV_FREQUENT_CHECK; |
1753 | } |
3594 | } |
|
|
3595 | #endif |
1754 | |
3596 | |
|
|
3597 | #if EV_PREPARE_ENABLE |
1755 | void |
3598 | void |
1756 | ev_prepare_start (EV_P_ ev_prepare *w) |
3599 | ev_prepare_start (EV_P_ ev_prepare *w) |
1757 | { |
3600 | { |
1758 | if (expect_false (ev_is_active (w))) |
3601 | if (expect_false (ev_is_active (w))) |
1759 | return; |
3602 | return; |
|
|
3603 | |
|
|
3604 | EV_FREQUENT_CHECK; |
1760 | |
3605 | |
1761 | ev_start (EV_A_ (W)w, ++preparecnt); |
3606 | ev_start (EV_A_ (W)w, ++preparecnt); |
1762 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
3607 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
1763 | prepares [preparecnt - 1] = w; |
3608 | prepares [preparecnt - 1] = w; |
|
|
3609 | |
|
|
3610 | EV_FREQUENT_CHECK; |
1764 | } |
3611 | } |
1765 | |
3612 | |
1766 | void |
3613 | void |
1767 | ev_prepare_stop (EV_P_ ev_prepare *w) |
3614 | ev_prepare_stop (EV_P_ ev_prepare *w) |
1768 | { |
3615 | { |
1769 | ev_clear_pending (EV_A_ (W)w); |
3616 | clear_pending (EV_A_ (W)w); |
1770 | if (expect_false (!ev_is_active (w))) |
3617 | if (expect_false (!ev_is_active (w))) |
1771 | return; |
3618 | return; |
1772 | |
3619 | |
|
|
3620 | EV_FREQUENT_CHECK; |
|
|
3621 | |
1773 | { |
3622 | { |
1774 | int active = ((W)w)->active; |
3623 | int active = ev_active (w); |
|
|
3624 | |
1775 | prepares [active - 1] = prepares [--preparecnt]; |
3625 | prepares [active - 1] = prepares [--preparecnt]; |
1776 | ((W)prepares [active - 1])->active = active; |
3626 | ev_active (prepares [active - 1]) = active; |
1777 | } |
3627 | } |
1778 | |
3628 | |
1779 | ev_stop (EV_A_ (W)w); |
3629 | ev_stop (EV_A_ (W)w); |
1780 | } |
|
|
1781 | |
3630 | |
|
|
3631 | EV_FREQUENT_CHECK; |
|
|
3632 | } |
|
|
3633 | #endif |
|
|
3634 | |
|
|
3635 | #if EV_CHECK_ENABLE |
1782 | void |
3636 | void |
1783 | ev_check_start (EV_P_ ev_check *w) |
3637 | ev_check_start (EV_P_ ev_check *w) |
1784 | { |
3638 | { |
1785 | if (expect_false (ev_is_active (w))) |
3639 | if (expect_false (ev_is_active (w))) |
1786 | return; |
3640 | return; |
|
|
3641 | |
|
|
3642 | EV_FREQUENT_CHECK; |
1787 | |
3643 | |
1788 | ev_start (EV_A_ (W)w, ++checkcnt); |
3644 | ev_start (EV_A_ (W)w, ++checkcnt); |
1789 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
3645 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
1790 | checks [checkcnt - 1] = w; |
3646 | checks [checkcnt - 1] = w; |
|
|
3647 | |
|
|
3648 | EV_FREQUENT_CHECK; |
1791 | } |
3649 | } |
1792 | |
3650 | |
1793 | void |
3651 | void |
1794 | ev_check_stop (EV_P_ ev_check *w) |
3652 | ev_check_stop (EV_P_ ev_check *w) |
1795 | { |
3653 | { |
1796 | ev_clear_pending (EV_A_ (W)w); |
3654 | clear_pending (EV_A_ (W)w); |
1797 | if (expect_false (!ev_is_active (w))) |
3655 | if (expect_false (!ev_is_active (w))) |
1798 | return; |
3656 | return; |
1799 | |
3657 | |
|
|
3658 | EV_FREQUENT_CHECK; |
|
|
3659 | |
1800 | { |
3660 | { |
1801 | int active = ((W)w)->active; |
3661 | int active = ev_active (w); |
|
|
3662 | |
1802 | checks [active - 1] = checks [--checkcnt]; |
3663 | checks [active - 1] = checks [--checkcnt]; |
1803 | ((W)checks [active - 1])->active = active; |
3664 | ev_active (checks [active - 1]) = active; |
1804 | } |
3665 | } |
1805 | |
3666 | |
1806 | ev_stop (EV_A_ (W)w); |
3667 | ev_stop (EV_A_ (W)w); |
|
|
3668 | |
|
|
3669 | EV_FREQUENT_CHECK; |
1807 | } |
3670 | } |
|
|
3671 | #endif |
1808 | |
3672 | |
1809 | #if EV_EMBED_ENABLE |
3673 | #if EV_EMBED_ENABLE |
1810 | void noinline |
3674 | void noinline |
1811 | ev_embed_sweep (EV_P_ ev_embed *w) |
3675 | ev_embed_sweep (EV_P_ ev_embed *w) |
1812 | { |
3676 | { |
1813 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
3677 | ev_run (w->other, EVRUN_NOWAIT); |
1814 | } |
3678 | } |
1815 | |
3679 | |
1816 | static void |
3680 | static void |
1817 | embed_cb (EV_P_ ev_io *io, int revents) |
3681 | embed_io_cb (EV_P_ ev_io *io, int revents) |
1818 | { |
3682 | { |
1819 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3683 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
1820 | |
3684 | |
1821 | if (ev_cb (w)) |
3685 | if (ev_cb (w)) |
1822 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3686 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
1823 | else |
3687 | else |
1824 | ev_embed_sweep (loop, w); |
3688 | ev_run (w->other, EVRUN_NOWAIT); |
1825 | } |
3689 | } |
|
|
3690 | |
|
|
3691 | static void |
|
|
3692 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
3693 | { |
|
|
3694 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
3695 | |
|
|
3696 | { |
|
|
3697 | EV_P = w->other; |
|
|
3698 | |
|
|
3699 | while (fdchangecnt) |
|
|
3700 | { |
|
|
3701 | fd_reify (EV_A); |
|
|
3702 | ev_run (EV_A_ EVRUN_NOWAIT); |
|
|
3703 | } |
|
|
3704 | } |
|
|
3705 | } |
|
|
3706 | |
|
|
3707 | static void |
|
|
3708 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
3709 | { |
|
|
3710 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
3711 | |
|
|
3712 | ev_embed_stop (EV_A_ w); |
|
|
3713 | |
|
|
3714 | { |
|
|
3715 | EV_P = w->other; |
|
|
3716 | |
|
|
3717 | ev_loop_fork (EV_A); |
|
|
3718 | ev_run (EV_A_ EVRUN_NOWAIT); |
|
|
3719 | } |
|
|
3720 | |
|
|
3721 | ev_embed_start (EV_A_ w); |
|
|
3722 | } |
|
|
3723 | |
|
|
3724 | #if 0 |
|
|
3725 | static void |
|
|
3726 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
3727 | { |
|
|
3728 | ev_idle_stop (EV_A_ idle); |
|
|
3729 | } |
|
|
3730 | #endif |
1826 | |
3731 | |
1827 | void |
3732 | void |
1828 | ev_embed_start (EV_P_ ev_embed *w) |
3733 | ev_embed_start (EV_P_ ev_embed *w) |
1829 | { |
3734 | { |
1830 | if (expect_false (ev_is_active (w))) |
3735 | if (expect_false (ev_is_active (w))) |
1831 | return; |
3736 | return; |
1832 | |
3737 | |
1833 | { |
3738 | { |
1834 | struct ev_loop *loop = w->loop; |
3739 | EV_P = w->other; |
1835 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3740 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
1836 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
3741 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
1837 | } |
3742 | } |
|
|
3743 | |
|
|
3744 | EV_FREQUENT_CHECK; |
1838 | |
3745 | |
1839 | ev_set_priority (&w->io, ev_priority (w)); |
3746 | ev_set_priority (&w->io, ev_priority (w)); |
1840 | ev_io_start (EV_A_ &w->io); |
3747 | ev_io_start (EV_A_ &w->io); |
1841 | |
3748 | |
|
|
3749 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
3750 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
3751 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
3752 | |
|
|
3753 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
3754 | ev_fork_start (EV_A_ &w->fork); |
|
|
3755 | |
|
|
3756 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
3757 | |
1842 | ev_start (EV_A_ (W)w, 1); |
3758 | ev_start (EV_A_ (W)w, 1); |
|
|
3759 | |
|
|
3760 | EV_FREQUENT_CHECK; |
1843 | } |
3761 | } |
1844 | |
3762 | |
1845 | void |
3763 | void |
1846 | ev_embed_stop (EV_P_ ev_embed *w) |
3764 | ev_embed_stop (EV_P_ ev_embed *w) |
1847 | { |
3765 | { |
1848 | ev_clear_pending (EV_A_ (W)w); |
3766 | clear_pending (EV_A_ (W)w); |
1849 | if (expect_false (!ev_is_active (w))) |
3767 | if (expect_false (!ev_is_active (w))) |
1850 | return; |
3768 | return; |
1851 | |
3769 | |
|
|
3770 | EV_FREQUENT_CHECK; |
|
|
3771 | |
1852 | ev_io_stop (EV_A_ &w->io); |
3772 | ev_io_stop (EV_A_ &w->io); |
|
|
3773 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
3774 | ev_fork_stop (EV_A_ &w->fork); |
1853 | |
3775 | |
1854 | ev_stop (EV_A_ (W)w); |
3776 | ev_stop (EV_A_ (W)w); |
|
|
3777 | |
|
|
3778 | EV_FREQUENT_CHECK; |
1855 | } |
3779 | } |
1856 | #endif |
3780 | #endif |
1857 | |
3781 | |
1858 | #if EV_FORK_ENABLE |
3782 | #if EV_FORK_ENABLE |
1859 | void |
3783 | void |
1860 | ev_fork_start (EV_P_ ev_fork *w) |
3784 | ev_fork_start (EV_P_ ev_fork *w) |
1861 | { |
3785 | { |
1862 | if (expect_false (ev_is_active (w))) |
3786 | if (expect_false (ev_is_active (w))) |
1863 | return; |
3787 | return; |
1864 | |
3788 | |
|
|
3789 | EV_FREQUENT_CHECK; |
|
|
3790 | |
1865 | ev_start (EV_A_ (W)w, ++forkcnt); |
3791 | ev_start (EV_A_ (W)w, ++forkcnt); |
1866 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
3792 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
1867 | forks [forkcnt - 1] = w; |
3793 | forks [forkcnt - 1] = w; |
|
|
3794 | |
|
|
3795 | EV_FREQUENT_CHECK; |
1868 | } |
3796 | } |
1869 | |
3797 | |
1870 | void |
3798 | void |
1871 | ev_fork_stop (EV_P_ ev_fork *w) |
3799 | ev_fork_stop (EV_P_ ev_fork *w) |
1872 | { |
3800 | { |
1873 | ev_clear_pending (EV_A_ (W)w); |
3801 | clear_pending (EV_A_ (W)w); |
1874 | if (expect_false (!ev_is_active (w))) |
3802 | if (expect_false (!ev_is_active (w))) |
1875 | return; |
3803 | return; |
1876 | |
3804 | |
|
|
3805 | EV_FREQUENT_CHECK; |
|
|
3806 | |
1877 | { |
3807 | { |
1878 | int active = ((W)w)->active; |
3808 | int active = ev_active (w); |
|
|
3809 | |
1879 | forks [active - 1] = forks [--forkcnt]; |
3810 | forks [active - 1] = forks [--forkcnt]; |
1880 | ((W)forks [active - 1])->active = active; |
3811 | ev_active (forks [active - 1]) = active; |
1881 | } |
3812 | } |
1882 | |
3813 | |
1883 | ev_stop (EV_A_ (W)w); |
3814 | ev_stop (EV_A_ (W)w); |
|
|
3815 | |
|
|
3816 | EV_FREQUENT_CHECK; |
|
|
3817 | } |
|
|
3818 | #endif |
|
|
3819 | |
|
|
3820 | #if EV_CLEANUP_ENABLE |
|
|
3821 | void |
|
|
3822 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
|
|
3823 | { |
|
|
3824 | if (expect_false (ev_is_active (w))) |
|
|
3825 | return; |
|
|
3826 | |
|
|
3827 | EV_FREQUENT_CHECK; |
|
|
3828 | |
|
|
3829 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
3830 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
|
|
3831 | cleanups [cleanupcnt - 1] = w; |
|
|
3832 | |
|
|
3833 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
3834 | ev_unref (EV_A); |
|
|
3835 | EV_FREQUENT_CHECK; |
|
|
3836 | } |
|
|
3837 | |
|
|
3838 | void |
|
|
3839 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
|
|
3840 | { |
|
|
3841 | clear_pending (EV_A_ (W)w); |
|
|
3842 | if (expect_false (!ev_is_active (w))) |
|
|
3843 | return; |
|
|
3844 | |
|
|
3845 | EV_FREQUENT_CHECK; |
|
|
3846 | ev_ref (EV_A); |
|
|
3847 | |
|
|
3848 | { |
|
|
3849 | int active = ev_active (w); |
|
|
3850 | |
|
|
3851 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
3852 | ev_active (cleanups [active - 1]) = active; |
|
|
3853 | } |
|
|
3854 | |
|
|
3855 | ev_stop (EV_A_ (W)w); |
|
|
3856 | |
|
|
3857 | EV_FREQUENT_CHECK; |
|
|
3858 | } |
|
|
3859 | #endif |
|
|
3860 | |
|
|
3861 | #if EV_ASYNC_ENABLE |
|
|
3862 | void |
|
|
3863 | ev_async_start (EV_P_ ev_async *w) |
|
|
3864 | { |
|
|
3865 | if (expect_false (ev_is_active (w))) |
|
|
3866 | return; |
|
|
3867 | |
|
|
3868 | w->sent = 0; |
|
|
3869 | |
|
|
3870 | evpipe_init (EV_A); |
|
|
3871 | |
|
|
3872 | EV_FREQUENT_CHECK; |
|
|
3873 | |
|
|
3874 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
3875 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
3876 | asyncs [asynccnt - 1] = w; |
|
|
3877 | |
|
|
3878 | EV_FREQUENT_CHECK; |
|
|
3879 | } |
|
|
3880 | |
|
|
3881 | void |
|
|
3882 | ev_async_stop (EV_P_ ev_async *w) |
|
|
3883 | { |
|
|
3884 | clear_pending (EV_A_ (W)w); |
|
|
3885 | if (expect_false (!ev_is_active (w))) |
|
|
3886 | return; |
|
|
3887 | |
|
|
3888 | EV_FREQUENT_CHECK; |
|
|
3889 | |
|
|
3890 | { |
|
|
3891 | int active = ev_active (w); |
|
|
3892 | |
|
|
3893 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
3894 | ev_active (asyncs [active - 1]) = active; |
|
|
3895 | } |
|
|
3896 | |
|
|
3897 | ev_stop (EV_A_ (W)w); |
|
|
3898 | |
|
|
3899 | EV_FREQUENT_CHECK; |
|
|
3900 | } |
|
|
3901 | |
|
|
3902 | void |
|
|
3903 | ev_async_send (EV_P_ ev_async *w) |
|
|
3904 | { |
|
|
3905 | w->sent = 1; |
|
|
3906 | evpipe_write (EV_A_ &async_pending); |
1884 | } |
3907 | } |
1885 | #endif |
3908 | #endif |
1886 | |
3909 | |
1887 | /*****************************************************************************/ |
3910 | /*****************************************************************************/ |
1888 | |
3911 | |
… | |
… | |
1898 | once_cb (EV_P_ struct ev_once *once, int revents) |
3921 | once_cb (EV_P_ struct ev_once *once, int revents) |
1899 | { |
3922 | { |
1900 | void (*cb)(int revents, void *arg) = once->cb; |
3923 | void (*cb)(int revents, void *arg) = once->cb; |
1901 | void *arg = once->arg; |
3924 | void *arg = once->arg; |
1902 | |
3925 | |
1903 | ev_io_stop (EV_A_ &once->io); |
3926 | ev_io_stop (EV_A_ &once->io); |
1904 | ev_timer_stop (EV_A_ &once->to); |
3927 | ev_timer_stop (EV_A_ &once->to); |
1905 | ev_free (once); |
3928 | ev_free (once); |
1906 | |
3929 | |
1907 | cb (revents, arg); |
3930 | cb (revents, arg); |
1908 | } |
3931 | } |
1909 | |
3932 | |
1910 | static void |
3933 | static void |
1911 | once_cb_io (EV_P_ ev_io *w, int revents) |
3934 | once_cb_io (EV_P_ ev_io *w, int revents) |
1912 | { |
3935 | { |
1913 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3936 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3937 | |
|
|
3938 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
1914 | } |
3939 | } |
1915 | |
3940 | |
1916 | static void |
3941 | static void |
1917 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3942 | once_cb_to (EV_P_ ev_timer *w, int revents) |
1918 | { |
3943 | { |
1919 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3944 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3945 | |
|
|
3946 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
1920 | } |
3947 | } |
1921 | |
3948 | |
1922 | void |
3949 | void |
1923 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3950 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1924 | { |
3951 | { |
1925 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3952 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1926 | |
3953 | |
1927 | if (expect_false (!once)) |
3954 | if (expect_false (!once)) |
1928 | { |
3955 | { |
1929 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
3956 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
1930 | return; |
3957 | return; |
1931 | } |
3958 | } |
1932 | |
3959 | |
1933 | once->cb = cb; |
3960 | once->cb = cb; |
1934 | once->arg = arg; |
3961 | once->arg = arg; |
… | |
… | |
1946 | ev_timer_set (&once->to, timeout, 0.); |
3973 | ev_timer_set (&once->to, timeout, 0.); |
1947 | ev_timer_start (EV_A_ &once->to); |
3974 | ev_timer_start (EV_A_ &once->to); |
1948 | } |
3975 | } |
1949 | } |
3976 | } |
1950 | |
3977 | |
1951 | #ifdef __cplusplus |
3978 | /*****************************************************************************/ |
1952 | } |
3979 | |
|
|
3980 | #if EV_WALK_ENABLE |
|
|
3981 | void ecb_cold |
|
|
3982 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3983 | { |
|
|
3984 | int i, j; |
|
|
3985 | ev_watcher_list *wl, *wn; |
|
|
3986 | |
|
|
3987 | if (types & (EV_IO | EV_EMBED)) |
|
|
3988 | for (i = 0; i < anfdmax; ++i) |
|
|
3989 | for (wl = anfds [i].head; wl; ) |
|
|
3990 | { |
|
|
3991 | wn = wl->next; |
|
|
3992 | |
|
|
3993 | #if EV_EMBED_ENABLE |
|
|
3994 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3995 | { |
|
|
3996 | if (types & EV_EMBED) |
|
|
3997 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3998 | } |
|
|
3999 | else |
|
|
4000 | #endif |
|
|
4001 | #if EV_USE_INOTIFY |
|
|
4002 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
4003 | ; |
|
|
4004 | else |
|
|
4005 | #endif |
|
|
4006 | if ((ev_io *)wl != &pipe_w) |
|
|
4007 | if (types & EV_IO) |
|
|
4008 | cb (EV_A_ EV_IO, wl); |
|
|
4009 | |
|
|
4010 | wl = wn; |
|
|
4011 | } |
|
|
4012 | |
|
|
4013 | if (types & (EV_TIMER | EV_STAT)) |
|
|
4014 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
4015 | #if EV_STAT_ENABLE |
|
|
4016 | /*TODO: timer is not always active*/ |
|
|
4017 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
4018 | { |
|
|
4019 | if (types & EV_STAT) |
|
|
4020 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
4021 | } |
|
|
4022 | else |
|
|
4023 | #endif |
|
|
4024 | if (types & EV_TIMER) |
|
|
4025 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
4026 | |
|
|
4027 | #if EV_PERIODIC_ENABLE |
|
|
4028 | if (types & EV_PERIODIC) |
|
|
4029 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
4030 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
4031 | #endif |
|
|
4032 | |
|
|
4033 | #if EV_IDLE_ENABLE |
|
|
4034 | if (types & EV_IDLE) |
|
|
4035 | for (j = NUMPRI; j--; ) |
|
|
4036 | for (i = idlecnt [j]; i--; ) |
|
|
4037 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
4038 | #endif |
|
|
4039 | |
|
|
4040 | #if EV_FORK_ENABLE |
|
|
4041 | if (types & EV_FORK) |
|
|
4042 | for (i = forkcnt; i--; ) |
|
|
4043 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
4044 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
4045 | #endif |
|
|
4046 | |
|
|
4047 | #if EV_ASYNC_ENABLE |
|
|
4048 | if (types & EV_ASYNC) |
|
|
4049 | for (i = asynccnt; i--; ) |
|
|
4050 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
4051 | #endif |
|
|
4052 | |
|
|
4053 | #if EV_PREPARE_ENABLE |
|
|
4054 | if (types & EV_PREPARE) |
|
|
4055 | for (i = preparecnt; i--; ) |
|
|
4056 | # if EV_EMBED_ENABLE |
|
|
4057 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
1953 | #endif |
4058 | # endif |
|
|
4059 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
4060 | #endif |
1954 | |
4061 | |
|
|
4062 | #if EV_CHECK_ENABLE |
|
|
4063 | if (types & EV_CHECK) |
|
|
4064 | for (i = checkcnt; i--; ) |
|
|
4065 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
4066 | #endif |
|
|
4067 | |
|
|
4068 | #if EV_SIGNAL_ENABLE |
|
|
4069 | if (types & EV_SIGNAL) |
|
|
4070 | for (i = 0; i < EV_NSIG - 1; ++i) |
|
|
4071 | for (wl = signals [i].head; wl; ) |
|
|
4072 | { |
|
|
4073 | wn = wl->next; |
|
|
4074 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
4075 | wl = wn; |
|
|
4076 | } |
|
|
4077 | #endif |
|
|
4078 | |
|
|
4079 | #if EV_CHILD_ENABLE |
|
|
4080 | if (types & EV_CHILD) |
|
|
4081 | for (i = (EV_PID_HASHSIZE); i--; ) |
|
|
4082 | for (wl = childs [i]; wl; ) |
|
|
4083 | { |
|
|
4084 | wn = wl->next; |
|
|
4085 | cb (EV_A_ EV_CHILD, wl); |
|
|
4086 | wl = wn; |
|
|
4087 | } |
|
|
4088 | #endif |
|
|
4089 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
4090 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
4091 | } |
|
|
4092 | #endif |
|
|
4093 | |
|
|
4094 | #if EV_MULTIPLICITY |
|
|
4095 | #include "ev_wrap.h" |
|
|
4096 | #endif |
|
|
4097 | |
|
|
4098 | EV_CPP(}) |
|
|
4099 | |