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 | */ |
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39 | |
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40 | /* this big block deduces configuration from config.h */ |
31 | #ifndef EV_STANDALONE |
41 | #ifndef EV_STANDALONE |
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42 | # ifdef EV_CONFIG_H |
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43 | # include EV_CONFIG_H |
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44 | # else |
32 | # include "config.h" |
45 | # include "config.h" |
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46 | # endif |
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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 |
33 | |
67 | |
34 | # if HAVE_CLOCK_GETTIME |
68 | # if HAVE_CLOCK_GETTIME |
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69 | # ifndef EV_USE_MONOTONIC |
35 | # define EV_USE_MONOTONIC 1 |
70 | # define EV_USE_MONOTONIC 1 |
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71 | # endif |
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72 | # ifndef EV_USE_REALTIME |
36 | # define EV_USE_REALTIME 1 |
73 | # define EV_USE_REALTIME 0 |
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74 | # endif |
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75 | # else |
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76 | # ifndef EV_USE_MONOTONIC |
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77 | # define EV_USE_MONOTONIC 0 |
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78 | # endif |
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79 | # ifndef EV_USE_REALTIME |
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80 | # define EV_USE_REALTIME 0 |
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81 | # endif |
37 | # endif |
82 | # endif |
38 | |
83 | |
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84 | # if HAVE_NANOSLEEP |
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85 | # ifndef EV_USE_NANOSLEEP |
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86 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
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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 |
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91 | # endif |
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92 | |
39 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
93 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
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94 | # ifndef EV_USE_SELECT |
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95 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
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96 | # endif |
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97 | # else |
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98 | # undef EV_USE_SELECT |
40 | # define EV_USE_SELECT 1 |
99 | # define EV_USE_SELECT 0 |
41 | # endif |
100 | # endif |
42 | |
101 | |
43 | # if HAVE_POLL && HAVE_POLL_H |
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 |
44 | # define EV_USE_POLL 1 |
108 | # define EV_USE_POLL 0 |
45 | # endif |
109 | # endif |
46 | |
110 | |
47 | # if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
111 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
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112 | # ifndef EV_USE_EPOLL |
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113 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
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114 | # endif |
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115 | # else |
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116 | # undef EV_USE_EPOLL |
48 | # define EV_USE_EPOLL 1 |
117 | # define EV_USE_EPOLL 0 |
49 | # endif |
118 | # endif |
50 | |
119 | |
51 | # if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
120 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
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121 | # ifndef EV_USE_KQUEUE |
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122 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
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123 | # endif |
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124 | # else |
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125 | # undef EV_USE_KQUEUE |
52 | # define EV_USE_KQUEUE 1 |
126 | # define EV_USE_KQUEUE 0 |
53 | # endif |
127 | # endif |
54 | |
128 | |
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129 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
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130 | # ifndef EV_USE_PORT |
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131 | # define EV_USE_PORT EV_FEATURE_BACKENDS |
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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 |
55 | #endif |
136 | # endif |
56 | |
137 | |
57 | #include <math.h> |
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 |
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145 | # endif |
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146 | |
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147 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
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148 | # ifndef EV_USE_SIGNALFD |
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149 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
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150 | # endif |
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151 | # else |
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152 | # undef EV_USE_SIGNALFD |
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153 | # define EV_USE_SIGNALFD 0 |
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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 | |
58 | #include <stdlib.h> |
167 | #include <stdlib.h> |
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168 | #include <string.h> |
59 | #include <fcntl.h> |
169 | #include <fcntl.h> |
60 | #include <stddef.h> |
170 | #include <stddef.h> |
61 | |
171 | |
62 | #include <stdio.h> |
172 | #include <stdio.h> |
63 | |
173 | |
64 | #include <assert.h> |
174 | #include <assert.h> |
65 | #include <errno.h> |
175 | #include <errno.h> |
66 | #include <sys/types.h> |
176 | #include <sys/types.h> |
67 | #include <time.h> |
177 | #include <time.h> |
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178 | #include <limits.h> |
68 | |
179 | |
69 | #include <signal.h> |
180 | #include <signal.h> |
70 | |
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 | #if EV_NO_THREADS |
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189 | # undef EV_NO_SMP |
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190 | # define EV_NO_SMP 1 |
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191 | # undef ECB_NO_THREADS |
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192 | # define ECB_NO_THREADS 1 |
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193 | #endif |
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194 | #if EV_NO_SMP |
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195 | # undef EV_NO_SMP |
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196 | # define ECB_NO_SMP 1 |
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197 | #endif |
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198 | |
71 | #ifndef WIN32 |
199 | #ifndef _WIN32 |
72 | # include <unistd.h> |
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73 | # include <sys/time.h> |
200 | # include <sys/time.h> |
74 | # include <sys/wait.h> |
201 | # include <sys/wait.h> |
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202 | # include <unistd.h> |
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203 | #else |
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204 | # include <io.h> |
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205 | # define WIN32_LEAN_AND_MEAN |
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206 | # include <windows.h> |
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207 | # ifndef EV_SELECT_IS_WINSOCKET |
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208 | # define EV_SELECT_IS_WINSOCKET 1 |
75 | #endif |
209 | # endif |
76 | /**/ |
210 | # undef EV_AVOID_STDIO |
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211 | #endif |
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212 | |
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213 | /* OS X, in its infinite idiocy, actually HARDCODES |
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214 | * a limit of 1024 into their select. Where people have brains, |
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215 | * OS X engineers apparently have a vacuum. Or maybe they were |
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216 | * ordered to have a vacuum, or they do anything for money. |
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217 | * This might help. Or not. |
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218 | */ |
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219 | #define _DARWIN_UNLIMITED_SELECT 1 |
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220 | |
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221 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
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222 | |
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223 | /* try to deduce the maximum number of signals on this platform */ |
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224 | #if defined EV_NSIG |
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225 | /* use what's provided */ |
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226 | #elif defined NSIG |
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227 | # define EV_NSIG (NSIG) |
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228 | #elif defined _NSIG |
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229 | # define EV_NSIG (_NSIG) |
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230 | #elif defined SIGMAX |
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231 | # define EV_NSIG (SIGMAX+1) |
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232 | #elif defined SIG_MAX |
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233 | # define EV_NSIG (SIG_MAX+1) |
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234 | #elif defined _SIG_MAX |
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235 | # define EV_NSIG (_SIG_MAX+1) |
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236 | #elif defined MAXSIG |
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237 | # define EV_NSIG (MAXSIG+1) |
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238 | #elif defined MAX_SIG |
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239 | # define EV_NSIG (MAX_SIG+1) |
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240 | #elif defined SIGARRAYSIZE |
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241 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
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242 | #elif defined _sys_nsig |
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243 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
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244 | #else |
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245 | # error "unable to find value for NSIG, please report" |
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246 | /* to make it compile regardless, just remove the above line, */ |
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247 | /* but consider reporting it, too! :) */ |
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248 | # define EV_NSIG 65 |
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249 | #endif |
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250 | |
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251 | #ifndef EV_USE_FLOOR |
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252 | # define EV_USE_FLOOR 0 |
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253 | #endif |
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254 | |
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255 | #ifndef EV_USE_CLOCK_SYSCALL |
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256 | # if __linux && __GLIBC__ >= 2 |
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257 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
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258 | # else |
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259 | # define EV_USE_CLOCK_SYSCALL 0 |
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260 | # endif |
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261 | #endif |
77 | |
262 | |
78 | #ifndef EV_USE_MONOTONIC |
263 | #ifndef EV_USE_MONOTONIC |
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264 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
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265 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
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266 | # else |
79 | # define EV_USE_MONOTONIC 1 |
267 | # define EV_USE_MONOTONIC 0 |
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268 | # endif |
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269 | #endif |
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270 | |
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271 | #ifndef EV_USE_REALTIME |
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272 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
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273 | #endif |
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274 | |
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275 | #ifndef EV_USE_NANOSLEEP |
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276 | # if _POSIX_C_SOURCE >= 199309L |
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277 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
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278 | # else |
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279 | # define EV_USE_NANOSLEEP 0 |
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280 | # endif |
80 | #endif |
281 | #endif |
81 | |
282 | |
82 | #ifndef EV_USE_SELECT |
283 | #ifndef EV_USE_SELECT |
83 | # define EV_USE_SELECT 1 |
284 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
84 | #endif |
285 | #endif |
85 | |
286 | |
86 | #ifndef EV_USE_POLL |
287 | #ifndef EV_USE_POLL |
87 | # define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */ |
288 | # ifdef _WIN32 |
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289 | # define EV_USE_POLL 0 |
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290 | # else |
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291 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
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292 | # endif |
88 | #endif |
293 | #endif |
89 | |
294 | |
90 | #ifndef EV_USE_EPOLL |
295 | #ifndef EV_USE_EPOLL |
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296 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
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297 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
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298 | # else |
91 | # define EV_USE_EPOLL 0 |
299 | # define EV_USE_EPOLL 0 |
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300 | # endif |
92 | #endif |
301 | #endif |
93 | |
302 | |
94 | #ifndef EV_USE_KQUEUE |
303 | #ifndef EV_USE_KQUEUE |
95 | # define EV_USE_KQUEUE 0 |
304 | # define EV_USE_KQUEUE 0 |
96 | #endif |
305 | #endif |
97 | |
306 | |
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307 | #ifndef EV_USE_PORT |
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308 | # define EV_USE_PORT 0 |
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309 | #endif |
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310 | |
98 | #ifndef EV_USE_WIN32 |
311 | #ifndef EV_USE_INOTIFY |
99 | # ifdef WIN32 |
312 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
100 | # define EV_USE_WIN32 0 /* it does not exist, use select */ |
313 | # define EV_USE_INOTIFY EV_FEATURE_OS |
101 | # undef EV_USE_SELECT |
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102 | # define EV_USE_SELECT 1 |
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103 | # else |
314 | # else |
104 | # define EV_USE_WIN32 0 |
315 | # define EV_USE_INOTIFY 0 |
105 | # endif |
316 | # endif |
106 | #endif |
317 | #endif |
107 | |
318 | |
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319 | #ifndef EV_PID_HASHSIZE |
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320 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
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321 | #endif |
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322 | |
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323 | #ifndef EV_INOTIFY_HASHSIZE |
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324 | # define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
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325 | #endif |
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326 | |
108 | #ifndef EV_USE_REALTIME |
327 | #ifndef EV_USE_EVENTFD |
109 | # define EV_USE_REALTIME 1 |
328 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
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329 | # define EV_USE_EVENTFD EV_FEATURE_OS |
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330 | # else |
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331 | # define EV_USE_EVENTFD 0 |
110 | #endif |
332 | # endif |
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333 | #endif |
111 | |
334 | |
112 | /**/ |
335 | #ifndef EV_USE_SIGNALFD |
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336 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
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337 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
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338 | # else |
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339 | # define EV_USE_SIGNALFD 0 |
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340 | # endif |
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341 | #endif |
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342 | |
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343 | #if 0 /* debugging */ |
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344 | # define EV_VERIFY 3 |
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345 | # define EV_USE_4HEAP 1 |
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346 | # define EV_HEAP_CACHE_AT 1 |
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347 | #endif |
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348 | |
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349 | #ifndef EV_VERIFY |
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350 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
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351 | #endif |
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352 | |
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353 | #ifndef EV_USE_4HEAP |
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354 | # define EV_USE_4HEAP EV_FEATURE_DATA |
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355 | #endif |
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356 | |
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357 | #ifndef EV_HEAP_CACHE_AT |
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358 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
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359 | #endif |
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360 | |
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361 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
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362 | /* which makes programs even slower. might work on other unices, too. */ |
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363 | #if EV_USE_CLOCK_SYSCALL |
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364 | # include <syscall.h> |
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365 | # ifdef SYS_clock_gettime |
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366 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
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367 | # undef EV_USE_MONOTONIC |
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368 | # define EV_USE_MONOTONIC 1 |
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369 | # else |
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370 | # undef EV_USE_CLOCK_SYSCALL |
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371 | # define EV_USE_CLOCK_SYSCALL 0 |
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372 | # endif |
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373 | #endif |
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374 | |
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375 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
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376 | |
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377 | #ifdef _AIX |
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378 | /* AIX has a completely broken poll.h header */ |
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379 | # undef EV_USE_POLL |
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380 | # define EV_USE_POLL 0 |
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381 | #endif |
113 | |
382 | |
114 | #ifndef CLOCK_MONOTONIC |
383 | #ifndef CLOCK_MONOTONIC |
115 | # undef EV_USE_MONOTONIC |
384 | # undef EV_USE_MONOTONIC |
116 | # define EV_USE_MONOTONIC 0 |
385 | # define EV_USE_MONOTONIC 0 |
117 | #endif |
386 | #endif |
… | |
… | |
119 | #ifndef CLOCK_REALTIME |
388 | #ifndef CLOCK_REALTIME |
120 | # undef EV_USE_REALTIME |
389 | # undef EV_USE_REALTIME |
121 | # define EV_USE_REALTIME 0 |
390 | # define EV_USE_REALTIME 0 |
122 | #endif |
391 | #endif |
123 | |
392 | |
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393 | #if !EV_STAT_ENABLE |
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394 | # undef EV_USE_INOTIFY |
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395 | # define EV_USE_INOTIFY 0 |
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396 | #endif |
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397 | |
|
|
398 | #if !EV_USE_NANOSLEEP |
|
|
399 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
|
|
400 | # if !defined _WIN32 && !defined __hpux |
|
|
401 | # include <sys/select.h> |
|
|
402 | # endif |
|
|
403 | #endif |
|
|
404 | |
|
|
405 | #if EV_USE_INOTIFY |
|
|
406 | # include <sys/statfs.h> |
|
|
407 | # include <sys/inotify.h> |
|
|
408 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
|
|
409 | # ifndef IN_DONT_FOLLOW |
|
|
410 | # undef EV_USE_INOTIFY |
|
|
411 | # define EV_USE_INOTIFY 0 |
|
|
412 | # endif |
|
|
413 | #endif |
|
|
414 | |
|
|
415 | #if EV_SELECT_IS_WINSOCKET |
|
|
416 | # include <winsock.h> |
|
|
417 | #endif |
|
|
418 | |
|
|
419 | #if EV_USE_EVENTFD |
|
|
420 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
421 | # include <stdint.h> |
|
|
422 | # ifndef EFD_NONBLOCK |
|
|
423 | # define EFD_NONBLOCK O_NONBLOCK |
|
|
424 | # endif |
|
|
425 | # ifndef EFD_CLOEXEC |
|
|
426 | # ifdef O_CLOEXEC |
|
|
427 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
428 | # else |
|
|
429 | # define EFD_CLOEXEC 02000000 |
|
|
430 | # endif |
|
|
431 | # endif |
|
|
432 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
|
|
433 | #endif |
|
|
434 | |
|
|
435 | #if EV_USE_SIGNALFD |
|
|
436 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
437 | # include <stdint.h> |
|
|
438 | # ifndef SFD_NONBLOCK |
|
|
439 | # define SFD_NONBLOCK O_NONBLOCK |
|
|
440 | # endif |
|
|
441 | # ifndef SFD_CLOEXEC |
|
|
442 | # ifdef O_CLOEXEC |
|
|
443 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
444 | # else |
|
|
445 | # define SFD_CLOEXEC 02000000 |
|
|
446 | # endif |
|
|
447 | # endif |
|
|
448 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
|
|
449 | |
|
|
450 | struct signalfd_siginfo |
|
|
451 | { |
|
|
452 | uint32_t ssi_signo; |
|
|
453 | char pad[128 - sizeof (uint32_t)]; |
|
|
454 | }; |
|
|
455 | #endif |
|
|
456 | |
124 | /**/ |
457 | /**/ |
125 | |
458 | |
|
|
459 | #if EV_VERIFY >= 3 |
|
|
460 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
|
|
461 | #else |
|
|
462 | # define EV_FREQUENT_CHECK do { } while (0) |
|
|
463 | #endif |
|
|
464 | |
|
|
465 | /* |
|
|
466 | * This is used to work around floating point rounding problems. |
|
|
467 | * This value is good at least till the year 4000. |
|
|
468 | */ |
|
|
469 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
|
|
470 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
|
|
471 | |
126 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
472 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
127 | #define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */ |
473 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
128 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
|
|
129 | /*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ |
|
|
130 | |
474 | |
131 | #include "ev.h" |
475 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
|
|
476 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
132 | |
477 | |
|
|
478 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
|
|
479 | /* ECB.H BEGIN */ |
|
|
480 | /* |
|
|
481 | * libecb - http://software.schmorp.de/pkg/libecb |
|
|
482 | * |
|
|
483 | * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> |
|
|
484 | * Copyright (©) 2011 Emanuele Giaquinta |
|
|
485 | * All rights reserved. |
|
|
486 | * |
|
|
487 | * Redistribution and use in source and binary forms, with or without modifica- |
|
|
488 | * tion, are permitted provided that the following conditions are met: |
|
|
489 | * |
|
|
490 | * 1. Redistributions of source code must retain the above copyright notice, |
|
|
491 | * this list of conditions and the following disclaimer. |
|
|
492 | * |
|
|
493 | * 2. Redistributions in binary form must reproduce the above copyright |
|
|
494 | * notice, this list of conditions and the following disclaimer in the |
|
|
495 | * documentation and/or other materials provided with the distribution. |
|
|
496 | * |
|
|
497 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
|
|
498 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
|
|
499 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
|
|
500 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
|
|
501 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
|
|
502 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
|
|
503 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
|
|
504 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
|
|
505 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
|
|
506 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
|
|
507 | */ |
|
|
508 | |
|
|
509 | #ifndef ECB_H |
|
|
510 | #define ECB_H |
|
|
511 | |
|
|
512 | #ifdef _WIN32 |
|
|
513 | typedef signed char int8_t; |
|
|
514 | typedef unsigned char uint8_t; |
|
|
515 | typedef signed short int16_t; |
|
|
516 | typedef unsigned short uint16_t; |
|
|
517 | typedef signed int int32_t; |
|
|
518 | typedef unsigned int uint32_t; |
133 | #if __GNUC__ >= 3 |
519 | #if __GNUC__ |
134 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
520 | typedef signed long long int64_t; |
135 | # define inline inline |
521 | typedef unsigned long long uint64_t; |
|
|
522 | #else /* _MSC_VER || __BORLANDC__ */ |
|
|
523 | typedef signed __int64 int64_t; |
|
|
524 | typedef unsigned __int64 uint64_t; |
|
|
525 | #endif |
136 | #else |
526 | #else |
137 | # define expect(expr,value) (expr) |
527 | #include <inttypes.h> |
138 | # define inline static |
528 | #endif |
|
|
529 | |
|
|
530 | /* many compilers define _GNUC_ to some versions but then only implement |
|
|
531 | * what their idiot authors think are the "more important" extensions, |
|
|
532 | * causing enormous grief in return for some better fake benchmark numbers. |
|
|
533 | * or so. |
|
|
534 | * we try to detect these and simply assume they are not gcc - if they have |
|
|
535 | * an issue with that they should have done it right in the first place. |
|
|
536 | */ |
|
|
537 | #ifndef ECB_GCC_VERSION |
|
|
538 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
|
|
539 | #define ECB_GCC_VERSION(major,minor) 0 |
|
|
540 | #else |
|
|
541 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
139 | #endif |
542 | #endif |
140 | |
543 | #endif |
141 | #define expect_false(expr) expect ((expr) != 0, 0) |
|
|
142 | #define expect_true(expr) expect ((expr) != 0, 1) |
|
|
143 | |
|
|
144 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
145 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
|
|
146 | |
|
|
147 | typedef struct ev_watcher *W; |
|
|
148 | typedef struct ev_watcher_list *WL; |
|
|
149 | typedef struct ev_watcher_time *WT; |
|
|
150 | |
|
|
151 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
152 | |
|
|
153 | #include "ev_win32.c" |
|
|
154 | |
544 | |
155 | /*****************************************************************************/ |
545 | /*****************************************************************************/ |
156 | |
546 | |
|
|
547 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
|
|
548 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
|
|
549 | |
|
|
550 | #if ECB_NO_THREADS |
|
|
551 | # define ECB_NO_SMP 1 |
|
|
552 | #endif |
|
|
553 | |
|
|
554 | #if ECB_NO_THREADS || ECB_NO_SMP |
|
|
555 | #define ECB_MEMORY_FENCE do { } while (0) |
|
|
556 | #endif |
|
|
557 | |
|
|
558 | #ifndef ECB_MEMORY_FENCE |
|
|
559 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
560 | #if __i386 || __i386__ |
|
|
561 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
|
|
562 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ |
|
|
563 | #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ |
|
|
564 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
|
|
565 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
|
|
566 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") |
|
|
567 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ |
|
|
568 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
|
|
569 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
570 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
|
|
571 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
|
|
572 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
|
|
573 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
|
|
574 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
|
|
575 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
|
|
576 | #elif __sparc || __sparc__ |
|
|
577 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory") |
|
|
578 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
|
|
579 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
|
|
580 | #elif defined __s390__ || defined __s390x__ |
|
|
581 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
|
|
582 | #elif defined __mips__ |
|
|
583 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
584 | #endif |
|
|
585 | #endif |
|
|
586 | #endif |
|
|
587 | |
|
|
588 | #ifndef ECB_MEMORY_FENCE |
|
|
589 | #if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
|
|
590 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
591 | /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ |
|
|
592 | /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ |
|
|
593 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
594 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
595 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
596 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
597 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
598 | #elif defined _WIN32 |
|
|
599 | #include <WinNT.h> |
|
|
600 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
601 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
602 | #include <mbarrier.h> |
|
|
603 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
|
|
604 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
|
|
605 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
|
|
606 | #elif __xlC__ |
|
|
607 | #define ECB_MEMORY_FENCE __sync () |
|
|
608 | #endif |
|
|
609 | #endif |
|
|
610 | |
|
|
611 | #ifndef ECB_MEMORY_FENCE |
|
|
612 | #if !ECB_AVOID_PTHREADS |
|
|
613 | /* |
|
|
614 | * if you get undefined symbol references to pthread_mutex_lock, |
|
|
615 | * or failure to find pthread.h, then you should implement |
|
|
616 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
|
617 | * OR provide pthread.h and link against the posix thread library |
|
|
618 | * of your system. |
|
|
619 | */ |
|
|
620 | #include <pthread.h> |
|
|
621 | #define ECB_NEEDS_PTHREADS 1 |
|
|
622 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
|
|
623 | |
|
|
624 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
625 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
626 | #endif |
|
|
627 | #endif |
|
|
628 | |
|
|
629 | #if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE |
|
|
630 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
631 | #endif |
|
|
632 | |
|
|
633 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
|
|
634 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
635 | #endif |
|
|
636 | |
|
|
637 | /*****************************************************************************/ |
|
|
638 | |
|
|
639 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
|
|
640 | |
|
|
641 | #if __cplusplus |
|
|
642 | #define ecb_inline static inline |
|
|
643 | #elif ECB_GCC_VERSION(2,5) |
|
|
644 | #define ecb_inline static __inline__ |
|
|
645 | #elif ECB_C99 |
|
|
646 | #define ecb_inline static inline |
|
|
647 | #else |
|
|
648 | #define ecb_inline static |
|
|
649 | #endif |
|
|
650 | |
|
|
651 | #if ECB_GCC_VERSION(3,3) |
|
|
652 | #define ecb_restrict __restrict__ |
|
|
653 | #elif ECB_C99 |
|
|
654 | #define ecb_restrict restrict |
|
|
655 | #else |
|
|
656 | #define ecb_restrict |
|
|
657 | #endif |
|
|
658 | |
|
|
659 | typedef int ecb_bool; |
|
|
660 | |
|
|
661 | #define ECB_CONCAT_(a, b) a ## b |
|
|
662 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
663 | #define ECB_STRINGIFY_(a) # a |
|
|
664 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
665 | |
|
|
666 | #define ecb_function_ ecb_inline |
|
|
667 | |
|
|
668 | #if ECB_GCC_VERSION(3,1) |
|
|
669 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
|
|
670 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
671 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
672 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
673 | #else |
|
|
674 | #define ecb_attribute(attrlist) |
|
|
675 | #define ecb_is_constant(expr) 0 |
|
|
676 | #define ecb_expect(expr,value) (expr) |
|
|
677 | #define ecb_prefetch(addr,rw,locality) |
|
|
678 | #endif |
|
|
679 | |
|
|
680 | /* no emulation for ecb_decltype */ |
|
|
681 | #if ECB_GCC_VERSION(4,5) |
|
|
682 | #define ecb_decltype(x) __decltype(x) |
|
|
683 | #elif ECB_GCC_VERSION(3,0) |
|
|
684 | #define ecb_decltype(x) __typeof(x) |
|
|
685 | #endif |
|
|
686 | |
|
|
687 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
688 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
689 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
690 | #define ecb_const ecb_attribute ((__const__)) |
|
|
691 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
692 | |
|
|
693 | #if ECB_GCC_VERSION(4,3) |
|
|
694 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
695 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
696 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
697 | #else |
|
|
698 | #define ecb_artificial |
|
|
699 | #define ecb_hot |
|
|
700 | #define ecb_cold |
|
|
701 | #endif |
|
|
702 | |
|
|
703 | /* put around conditional expressions if you are very sure that the */ |
|
|
704 | /* expression is mostly true or mostly false. note that these return */ |
|
|
705 | /* booleans, not the expression. */ |
|
|
706 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
|
|
707 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
708 | /* for compatibility to the rest of the world */ |
|
|
709 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
710 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
|
|
711 | |
|
|
712 | /* count trailing zero bits and count # of one bits */ |
|
|
713 | #if ECB_GCC_VERSION(3,4) |
|
|
714 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
715 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
|
|
716 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
717 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
718 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
719 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
720 | /* no popcountll */ |
|
|
721 | #else |
|
|
722 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
|
|
723 | ecb_function_ int |
|
|
724 | ecb_ctz32 (uint32_t x) |
|
|
725 | { |
|
|
726 | int r = 0; |
|
|
727 | |
|
|
728 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
729 | |
|
|
730 | #if ECB_branchless_on_i386 |
|
|
731 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
732 | r += !!(x & 0xcccccccc) << 1; |
|
|
733 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
734 | r += !!(x & 0xff00ff00) << 3; |
|
|
735 | r += !!(x & 0xffff0000) << 4; |
|
|
736 | #else |
|
|
737 | if (x & 0xaaaaaaaa) r += 1; |
|
|
738 | if (x & 0xcccccccc) r += 2; |
|
|
739 | if (x & 0xf0f0f0f0) r += 4; |
|
|
740 | if (x & 0xff00ff00) r += 8; |
|
|
741 | if (x & 0xffff0000) r += 16; |
|
|
742 | #endif |
|
|
743 | |
|
|
744 | return r; |
|
|
745 | } |
|
|
746 | |
|
|
747 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
|
|
748 | ecb_function_ int |
|
|
749 | ecb_ctz64 (uint64_t x) |
|
|
750 | { |
|
|
751 | int shift = x & 0xffffffffU ? 0 : 32; |
|
|
752 | return ecb_ctz32 (x >> shift) + shift; |
|
|
753 | } |
|
|
754 | |
|
|
755 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
|
|
756 | ecb_function_ int |
|
|
757 | ecb_popcount32 (uint32_t x) |
|
|
758 | { |
|
|
759 | x -= (x >> 1) & 0x55555555; |
|
|
760 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
761 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
762 | x *= 0x01010101; |
|
|
763 | |
|
|
764 | return x >> 24; |
|
|
765 | } |
|
|
766 | |
|
|
767 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
|
|
768 | ecb_function_ int ecb_ld32 (uint32_t x) |
|
|
769 | { |
|
|
770 | int r = 0; |
|
|
771 | |
|
|
772 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
773 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
774 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
775 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
776 | if (x >> 1) { r += 1; } |
|
|
777 | |
|
|
778 | return r; |
|
|
779 | } |
|
|
780 | |
|
|
781 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
|
|
782 | ecb_function_ int ecb_ld64 (uint64_t x) |
|
|
783 | { |
|
|
784 | int r = 0; |
|
|
785 | |
|
|
786 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
787 | |
|
|
788 | return r + ecb_ld32 (x); |
|
|
789 | } |
|
|
790 | #endif |
|
|
791 | |
|
|
792 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
|
|
793 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
|
|
794 | { |
|
|
795 | return ( (x * 0x0802U & 0x22110U) |
|
|
796 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
|
|
797 | } |
|
|
798 | |
|
|
799 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
|
|
800 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
|
|
801 | { |
|
|
802 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
|
|
803 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
|
|
804 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
|
|
805 | x = ( x >> 8 ) | ( x << 8); |
|
|
806 | |
|
|
807 | return x; |
|
|
808 | } |
|
|
809 | |
|
|
810 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
|
|
811 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
|
|
812 | { |
|
|
813 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
|
|
814 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
|
|
815 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
|
|
816 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
|
|
817 | x = ( x >> 16 ) | ( x << 16); |
|
|
818 | |
|
|
819 | return x; |
|
|
820 | } |
|
|
821 | |
|
|
822 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
823 | /* so for this version we are lazy */ |
|
|
824 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
|
|
825 | ecb_function_ int |
|
|
826 | ecb_popcount64 (uint64_t x) |
|
|
827 | { |
|
|
828 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
829 | } |
|
|
830 | |
|
|
831 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
|
|
832 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
|
|
833 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
|
|
834 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
|
|
835 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
|
|
836 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
|
|
837 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
|
|
838 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
|
|
839 | |
|
|
840 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
|
|
841 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
|
|
842 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
|
|
843 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
|
|
844 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
|
|
845 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
|
|
846 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
|
|
847 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
|
|
848 | |
|
|
849 | #if ECB_GCC_VERSION(4,3) |
|
|
850 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
851 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
|
|
852 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
853 | #else |
|
|
854 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
|
|
855 | ecb_function_ uint16_t |
|
|
856 | ecb_bswap16 (uint16_t x) |
|
|
857 | { |
|
|
858 | return ecb_rotl16 (x, 8); |
|
|
859 | } |
|
|
860 | |
|
|
861 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
|
|
862 | ecb_function_ uint32_t |
|
|
863 | ecb_bswap32 (uint32_t x) |
|
|
864 | { |
|
|
865 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
|
|
866 | } |
|
|
867 | |
|
|
868 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
|
|
869 | ecb_function_ uint64_t |
|
|
870 | ecb_bswap64 (uint64_t x) |
|
|
871 | { |
|
|
872 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
|
|
873 | } |
|
|
874 | #endif |
|
|
875 | |
|
|
876 | #if ECB_GCC_VERSION(4,5) |
|
|
877 | #define ecb_unreachable() __builtin_unreachable () |
|
|
878 | #else |
|
|
879 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
880 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
|
|
881 | ecb_inline void ecb_unreachable (void) { } |
|
|
882 | #endif |
|
|
883 | |
|
|
884 | /* try to tell the compiler that some condition is definitely true */ |
|
|
885 | #define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) |
|
|
886 | |
|
|
887 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
|
|
888 | ecb_inline unsigned char |
|
|
889 | ecb_byteorder_helper (void) |
|
|
890 | { |
|
|
891 | const uint32_t u = 0x11223344; |
|
|
892 | return *(unsigned char *)&u; |
|
|
893 | } |
|
|
894 | |
|
|
895 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
|
|
896 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
|
|
897 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
|
|
898 | ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
|
|
899 | |
|
|
900 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
901 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
902 | #else |
|
|
903 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
904 | #endif |
|
|
905 | |
|
|
906 | #if __cplusplus |
|
|
907 | template<typename T> |
|
|
908 | static inline T ecb_div_rd (T val, T div) |
|
|
909 | { |
|
|
910 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
|
|
911 | } |
|
|
912 | template<typename T> |
|
|
913 | static inline T ecb_div_ru (T val, T div) |
|
|
914 | { |
|
|
915 | return val < 0 ? - ((-val ) / div) : (val + div - 1) / div; |
|
|
916 | } |
|
|
917 | #else |
|
|
918 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
|
|
919 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
|
|
920 | #endif |
|
|
921 | |
|
|
922 | #if ecb_cplusplus_does_not_suck |
|
|
923 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
924 | template<typename T, int N> |
|
|
925 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
926 | { |
|
|
927 | return N; |
|
|
928 | } |
|
|
929 | #else |
|
|
930 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
931 | #endif |
|
|
932 | |
|
|
933 | #endif |
|
|
934 | |
|
|
935 | /* ECB.H END */ |
|
|
936 | |
|
|
937 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
938 | /* if your architecture doesn't need memory fences, e.g. because it is |
|
|
939 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
|
|
940 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
|
|
941 | * libev, in which cases the memory fences become nops. |
|
|
942 | * alternatively, you can remove this #error and link against libpthread, |
|
|
943 | * which will then provide the memory fences. |
|
|
944 | */ |
|
|
945 | # error "memory fences not defined for your architecture, please report" |
|
|
946 | #endif |
|
|
947 | |
|
|
948 | #ifndef ECB_MEMORY_FENCE |
|
|
949 | # define ECB_MEMORY_FENCE do { } while (0) |
|
|
950 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
951 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
952 | #endif |
|
|
953 | |
|
|
954 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
955 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
956 | #define noinline ecb_noinline |
|
|
957 | |
|
|
958 | #define inline_size ecb_inline |
|
|
959 | |
|
|
960 | #if EV_FEATURE_CODE |
|
|
961 | # define inline_speed ecb_inline |
|
|
962 | #else |
|
|
963 | # define inline_speed static noinline |
|
|
964 | #endif |
|
|
965 | |
|
|
966 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
967 | |
|
|
968 | #if EV_MINPRI == EV_MAXPRI |
|
|
969 | # define ABSPRI(w) (((W)w), 0) |
|
|
970 | #else |
|
|
971 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
972 | #endif |
|
|
973 | |
|
|
974 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
|
|
975 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
976 | |
|
|
977 | typedef ev_watcher *W; |
|
|
978 | typedef ev_watcher_list *WL; |
|
|
979 | typedef ev_watcher_time *WT; |
|
|
980 | |
|
|
981 | #define ev_active(w) ((W)(w))->active |
|
|
982 | #define ev_at(w) ((WT)(w))->at |
|
|
983 | |
|
|
984 | #if EV_USE_REALTIME |
|
|
985 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
986 | /* giving it a reasonably high chance of working on typical architectures */ |
|
|
987 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
|
|
988 | #endif |
|
|
989 | |
|
|
990 | #if EV_USE_MONOTONIC |
|
|
991 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
992 | #endif |
|
|
993 | |
|
|
994 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
995 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
996 | #endif |
|
|
997 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
998 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
999 | #endif |
|
|
1000 | #ifndef EV_WIN32_CLOSE_FD |
|
|
1001 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
|
|
1002 | #endif |
|
|
1003 | |
|
|
1004 | #ifdef _WIN32 |
|
|
1005 | # include "ev_win32.c" |
|
|
1006 | #endif |
|
|
1007 | |
|
|
1008 | /*****************************************************************************/ |
|
|
1009 | |
|
|
1010 | /* define a suitable floor function (only used by periodics atm) */ |
|
|
1011 | |
|
|
1012 | #if EV_USE_FLOOR |
|
|
1013 | # include <math.h> |
|
|
1014 | # define ev_floor(v) floor (v) |
|
|
1015 | #else |
|
|
1016 | |
|
|
1017 | #include <float.h> |
|
|
1018 | |
|
|
1019 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1020 | static ev_tstamp noinline |
|
|
1021 | ev_floor (ev_tstamp v) |
|
|
1022 | { |
|
|
1023 | /* the choice of shift factor is not terribly important */ |
|
|
1024 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
|
|
1025 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
|
|
1026 | #else |
|
|
1027 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
|
|
1028 | #endif |
|
|
1029 | |
|
|
1030 | /* argument too large for an unsigned long? */ |
|
|
1031 | if (expect_false (v >= shift)) |
|
|
1032 | { |
|
|
1033 | ev_tstamp f; |
|
|
1034 | |
|
|
1035 | if (v == v - 1.) |
|
|
1036 | return v; /* very large number */ |
|
|
1037 | |
|
|
1038 | f = shift * ev_floor (v * (1. / shift)); |
|
|
1039 | return f + ev_floor (v - f); |
|
|
1040 | } |
|
|
1041 | |
|
|
1042 | /* special treatment for negative args? */ |
|
|
1043 | if (expect_false (v < 0.)) |
|
|
1044 | { |
|
|
1045 | ev_tstamp f = -ev_floor (-v); |
|
|
1046 | |
|
|
1047 | return f - (f == v ? 0 : 1); |
|
|
1048 | } |
|
|
1049 | |
|
|
1050 | /* fits into an unsigned long */ |
|
|
1051 | return (unsigned long)v; |
|
|
1052 | } |
|
|
1053 | |
|
|
1054 | #endif |
|
|
1055 | |
|
|
1056 | /*****************************************************************************/ |
|
|
1057 | |
|
|
1058 | #ifdef __linux |
|
|
1059 | # include <sys/utsname.h> |
|
|
1060 | #endif |
|
|
1061 | |
|
|
1062 | static unsigned int noinline ecb_cold |
|
|
1063 | ev_linux_version (void) |
|
|
1064 | { |
|
|
1065 | #ifdef __linux |
|
|
1066 | unsigned int v = 0; |
|
|
1067 | struct utsname buf; |
|
|
1068 | int i; |
|
|
1069 | char *p = buf.release; |
|
|
1070 | |
|
|
1071 | if (uname (&buf)) |
|
|
1072 | return 0; |
|
|
1073 | |
|
|
1074 | for (i = 3+1; --i; ) |
|
|
1075 | { |
|
|
1076 | unsigned int c = 0; |
|
|
1077 | |
|
|
1078 | for (;;) |
|
|
1079 | { |
|
|
1080 | if (*p >= '0' && *p <= '9') |
|
|
1081 | c = c * 10 + *p++ - '0'; |
|
|
1082 | else |
|
|
1083 | { |
|
|
1084 | p += *p == '.'; |
|
|
1085 | break; |
|
|
1086 | } |
|
|
1087 | } |
|
|
1088 | |
|
|
1089 | v = (v << 8) | c; |
|
|
1090 | } |
|
|
1091 | |
|
|
1092 | return v; |
|
|
1093 | #else |
|
|
1094 | return 0; |
|
|
1095 | #endif |
|
|
1096 | } |
|
|
1097 | |
|
|
1098 | /*****************************************************************************/ |
|
|
1099 | |
|
|
1100 | #if EV_AVOID_STDIO |
|
|
1101 | static void noinline ecb_cold |
|
|
1102 | ev_printerr (const char *msg) |
|
|
1103 | { |
|
|
1104 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
1105 | } |
|
|
1106 | #endif |
|
|
1107 | |
157 | static void (*syserr_cb)(const char *msg); |
1108 | static void (*syserr_cb)(const char *msg); |
158 | |
1109 | |
|
|
1110 | void ecb_cold |
159 | void ev_set_syserr_cb (void (*cb)(const char *msg)) |
1111 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
160 | { |
1112 | { |
161 | syserr_cb = cb; |
1113 | syserr_cb = cb; |
162 | } |
1114 | } |
163 | |
1115 | |
164 | static void |
1116 | static void noinline ecb_cold |
165 | syserr (const char *msg) |
1117 | ev_syserr (const char *msg) |
166 | { |
1118 | { |
167 | if (!msg) |
1119 | if (!msg) |
168 | msg = "(libev) system error"; |
1120 | msg = "(libev) system error"; |
169 | |
1121 | |
170 | if (syserr_cb) |
1122 | if (syserr_cb) |
171 | syserr_cb (msg); |
1123 | syserr_cb (msg); |
172 | else |
1124 | else |
173 | { |
1125 | { |
|
|
1126 | #if EV_AVOID_STDIO |
|
|
1127 | ev_printerr (msg); |
|
|
1128 | ev_printerr (": "); |
|
|
1129 | ev_printerr (strerror (errno)); |
|
|
1130 | ev_printerr ("\n"); |
|
|
1131 | #else |
174 | perror (msg); |
1132 | perror (msg); |
|
|
1133 | #endif |
175 | abort (); |
1134 | abort (); |
176 | } |
1135 | } |
177 | } |
1136 | } |
178 | |
1137 | |
|
|
1138 | static void * |
|
|
1139 | ev_realloc_emul (void *ptr, long size) |
|
|
1140 | { |
|
|
1141 | #if __GLIBC__ |
|
|
1142 | return realloc (ptr, size); |
|
|
1143 | #else |
|
|
1144 | /* some systems, notably openbsd and darwin, fail to properly |
|
|
1145 | * implement realloc (x, 0) (as required by both ansi c-89 and |
|
|
1146 | * the single unix specification, so work around them here. |
|
|
1147 | */ |
|
|
1148 | |
|
|
1149 | if (size) |
|
|
1150 | return realloc (ptr, size); |
|
|
1151 | |
|
|
1152 | free (ptr); |
|
|
1153 | return 0; |
|
|
1154 | #endif |
|
|
1155 | } |
|
|
1156 | |
179 | static void *(*alloc)(void *ptr, long size); |
1157 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
180 | |
1158 | |
|
|
1159 | void ecb_cold |
181 | void ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1160 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
182 | { |
1161 | { |
183 | alloc = cb; |
1162 | alloc = cb; |
184 | } |
1163 | } |
185 | |
1164 | |
186 | static void * |
1165 | inline_speed void * |
187 | ev_realloc (void *ptr, long size) |
1166 | ev_realloc (void *ptr, long size) |
188 | { |
1167 | { |
189 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
1168 | ptr = alloc (ptr, size); |
190 | |
1169 | |
191 | if (!ptr && size) |
1170 | if (!ptr && size) |
192 | { |
1171 | { |
|
|
1172 | #if EV_AVOID_STDIO |
|
|
1173 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
|
|
1174 | #else |
193 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
1175 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
|
|
1176 | #endif |
194 | abort (); |
1177 | abort (); |
195 | } |
1178 | } |
196 | |
1179 | |
197 | return ptr; |
1180 | return ptr; |
198 | } |
1181 | } |
… | |
… | |
200 | #define ev_malloc(size) ev_realloc (0, (size)) |
1183 | #define ev_malloc(size) ev_realloc (0, (size)) |
201 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
1184 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
202 | |
1185 | |
203 | /*****************************************************************************/ |
1186 | /*****************************************************************************/ |
204 | |
1187 | |
|
|
1188 | /* set in reify when reification needed */ |
|
|
1189 | #define EV_ANFD_REIFY 1 |
|
|
1190 | |
|
|
1191 | /* file descriptor info structure */ |
205 | typedef struct |
1192 | typedef struct |
206 | { |
1193 | { |
207 | WL head; |
1194 | WL head; |
208 | unsigned char events; |
1195 | unsigned char events; /* the events watched for */ |
|
|
1196 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
|
|
1197 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
209 | unsigned char reify; |
1198 | unsigned char unused; |
|
|
1199 | #if EV_USE_EPOLL |
|
|
1200 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
1201 | #endif |
|
|
1202 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
1203 | SOCKET handle; |
|
|
1204 | #endif |
|
|
1205 | #if EV_USE_IOCP |
|
|
1206 | OVERLAPPED or, ow; |
|
|
1207 | #endif |
210 | } ANFD; |
1208 | } ANFD; |
211 | |
1209 | |
|
|
1210 | /* stores the pending event set for a given watcher */ |
212 | typedef struct |
1211 | typedef struct |
213 | { |
1212 | { |
214 | W w; |
1213 | W w; |
215 | int events; |
1214 | int events; /* the pending event set for the given watcher */ |
216 | } ANPENDING; |
1215 | } ANPENDING; |
|
|
1216 | |
|
|
1217 | #if EV_USE_INOTIFY |
|
|
1218 | /* hash table entry per inotify-id */ |
|
|
1219 | typedef struct |
|
|
1220 | { |
|
|
1221 | WL head; |
|
|
1222 | } ANFS; |
|
|
1223 | #endif |
|
|
1224 | |
|
|
1225 | /* Heap Entry */ |
|
|
1226 | #if EV_HEAP_CACHE_AT |
|
|
1227 | /* a heap element */ |
|
|
1228 | typedef struct { |
|
|
1229 | ev_tstamp at; |
|
|
1230 | WT w; |
|
|
1231 | } ANHE; |
|
|
1232 | |
|
|
1233 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
|
|
1234 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
|
1235 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
1236 | #else |
|
|
1237 | /* a heap element */ |
|
|
1238 | typedef WT ANHE; |
|
|
1239 | |
|
|
1240 | #define ANHE_w(he) (he) |
|
|
1241 | #define ANHE_at(he) (he)->at |
|
|
1242 | #define ANHE_at_cache(he) |
|
|
1243 | #endif |
217 | |
1244 | |
218 | #if EV_MULTIPLICITY |
1245 | #if EV_MULTIPLICITY |
219 | |
1246 | |
220 | struct ev_loop |
1247 | struct ev_loop |
221 | { |
1248 | { |
|
|
1249 | ev_tstamp ev_rt_now; |
|
|
1250 | #define ev_rt_now ((loop)->ev_rt_now) |
222 | #define VAR(name,decl) decl; |
1251 | #define VAR(name,decl) decl; |
223 | #include "ev_vars.h" |
1252 | #include "ev_vars.h" |
224 | #undef VAR |
1253 | #undef VAR |
225 | }; |
1254 | }; |
226 | #include "ev_wrap.h" |
1255 | #include "ev_wrap.h" |
227 | |
1256 | |
228 | struct ev_loop default_loop_struct; |
1257 | static struct ev_loop default_loop_struct; |
229 | static struct ev_loop *default_loop; |
1258 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
230 | |
1259 | |
231 | #else |
1260 | #else |
232 | |
1261 | |
|
|
1262 | EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ |
233 | #define VAR(name,decl) static decl; |
1263 | #define VAR(name,decl) static decl; |
234 | #include "ev_vars.h" |
1264 | #include "ev_vars.h" |
235 | #undef VAR |
1265 | #undef VAR |
236 | |
1266 | |
237 | static int default_loop; |
1267 | static int ev_default_loop_ptr; |
238 | |
1268 | |
239 | #endif |
1269 | #endif |
|
|
1270 | |
|
|
1271 | #if EV_FEATURE_API |
|
|
1272 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
1273 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
1274 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
1275 | #else |
|
|
1276 | # define EV_RELEASE_CB (void)0 |
|
|
1277 | # define EV_ACQUIRE_CB (void)0 |
|
|
1278 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
1279 | #endif |
|
|
1280 | |
|
|
1281 | #define EVBREAK_RECURSE 0x80 |
240 | |
1282 | |
241 | /*****************************************************************************/ |
1283 | /*****************************************************************************/ |
242 | |
1284 | |
243 | inline ev_tstamp |
1285 | #ifndef EV_HAVE_EV_TIME |
|
|
1286 | ev_tstamp |
244 | ev_time (void) |
1287 | ev_time (void) |
245 | { |
1288 | { |
246 | #if EV_USE_REALTIME |
1289 | #if EV_USE_REALTIME |
|
|
1290 | if (expect_true (have_realtime)) |
|
|
1291 | { |
247 | struct timespec ts; |
1292 | struct timespec ts; |
248 | clock_gettime (CLOCK_REALTIME, &ts); |
1293 | clock_gettime (CLOCK_REALTIME, &ts); |
249 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
1294 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
250 | #else |
1295 | } |
|
|
1296 | #endif |
|
|
1297 | |
251 | struct timeval tv; |
1298 | struct timeval tv; |
252 | gettimeofday (&tv, 0); |
1299 | gettimeofday (&tv, 0); |
253 | return tv.tv_sec + tv.tv_usec * 1e-6; |
1300 | return tv.tv_sec + tv.tv_usec * 1e-6; |
254 | #endif |
|
|
255 | } |
1301 | } |
|
|
1302 | #endif |
256 | |
1303 | |
257 | inline ev_tstamp |
1304 | inline_size ev_tstamp |
258 | get_clock (void) |
1305 | get_clock (void) |
259 | { |
1306 | { |
260 | #if EV_USE_MONOTONIC |
1307 | #if EV_USE_MONOTONIC |
261 | if (expect_true (have_monotonic)) |
1308 | if (expect_true (have_monotonic)) |
262 | { |
1309 | { |
… | |
… | |
267 | #endif |
1314 | #endif |
268 | |
1315 | |
269 | return ev_time (); |
1316 | return ev_time (); |
270 | } |
1317 | } |
271 | |
1318 | |
|
|
1319 | #if EV_MULTIPLICITY |
272 | ev_tstamp |
1320 | ev_tstamp |
273 | ev_now (EV_P) |
1321 | ev_now (EV_P) |
274 | { |
1322 | { |
275 | return rt_now; |
1323 | return ev_rt_now; |
276 | } |
1324 | } |
|
|
1325 | #endif |
277 | |
1326 | |
278 | #define array_roundsize(type,n) ((n) | 4 & ~3) |
1327 | void |
|
|
1328 | ev_sleep (ev_tstamp delay) |
|
|
1329 | { |
|
|
1330 | if (delay > 0.) |
|
|
1331 | { |
|
|
1332 | #if EV_USE_NANOSLEEP |
|
|
1333 | struct timespec ts; |
|
|
1334 | |
|
|
1335 | EV_TS_SET (ts, delay); |
|
|
1336 | nanosleep (&ts, 0); |
|
|
1337 | #elif defined _WIN32 |
|
|
1338 | Sleep ((unsigned long)(delay * 1e3)); |
|
|
1339 | #else |
|
|
1340 | struct timeval tv; |
|
|
1341 | |
|
|
1342 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
|
|
1343 | /* something not guaranteed by newer posix versions, but guaranteed */ |
|
|
1344 | /* by older ones */ |
|
|
1345 | EV_TV_SET (tv, delay); |
|
|
1346 | select (0, 0, 0, 0, &tv); |
|
|
1347 | #endif |
|
|
1348 | } |
|
|
1349 | } |
|
|
1350 | |
|
|
1351 | /*****************************************************************************/ |
|
|
1352 | |
|
|
1353 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
|
|
1354 | |
|
|
1355 | /* find a suitable new size for the given array, */ |
|
|
1356 | /* hopefully by rounding to a nice-to-malloc size */ |
|
|
1357 | inline_size int |
|
|
1358 | array_nextsize (int elem, int cur, int cnt) |
|
|
1359 | { |
|
|
1360 | int ncur = cur + 1; |
|
|
1361 | |
|
|
1362 | do |
|
|
1363 | ncur <<= 1; |
|
|
1364 | while (cnt > ncur); |
|
|
1365 | |
|
|
1366 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
|
|
1367 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
|
|
1368 | { |
|
|
1369 | ncur *= elem; |
|
|
1370 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
|
|
1371 | ncur = ncur - sizeof (void *) * 4; |
|
|
1372 | ncur /= elem; |
|
|
1373 | } |
|
|
1374 | |
|
|
1375 | return ncur; |
|
|
1376 | } |
|
|
1377 | |
|
|
1378 | static void * noinline ecb_cold |
|
|
1379 | array_realloc (int elem, void *base, int *cur, int cnt) |
|
|
1380 | { |
|
|
1381 | *cur = array_nextsize (elem, *cur, cnt); |
|
|
1382 | return ev_realloc (base, elem * *cur); |
|
|
1383 | } |
|
|
1384 | |
|
|
1385 | #define array_init_zero(base,count) \ |
|
|
1386 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
279 | |
1387 | |
280 | #define array_needsize(type,base,cur,cnt,init) \ |
1388 | #define array_needsize(type,base,cur,cnt,init) \ |
281 | if (expect_false ((cnt) > cur)) \ |
1389 | if (expect_false ((cnt) > (cur))) \ |
282 | { \ |
1390 | { \ |
283 | int newcnt = cur; \ |
1391 | int ecb_unused ocur_ = (cur); \ |
284 | do \ |
1392 | (base) = (type *)array_realloc \ |
285 | { \ |
1393 | (sizeof (type), (base), &(cur), (cnt)); \ |
286 | newcnt = array_roundsize (type, newcnt << 1); \ |
1394 | init ((base) + (ocur_), (cur) - ocur_); \ |
287 | } \ |
|
|
288 | while ((cnt) > newcnt); \ |
|
|
289 | \ |
|
|
290 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
|
|
291 | init (base + cur, newcnt - cur); \ |
|
|
292 | cur = newcnt; \ |
|
|
293 | } |
1395 | } |
294 | |
1396 | |
|
|
1397 | #if 0 |
295 | #define array_slim(type,stem) \ |
1398 | #define array_slim(type,stem) \ |
296 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
1399 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
297 | { \ |
1400 | { \ |
298 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
1401 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
299 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
1402 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
300 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
1403 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
301 | } |
1404 | } |
302 | |
1405 | #endif |
303 | /* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */ |
|
|
304 | /* bringing us everlasting joy in form of stupid extra macros that are not required in C */ |
|
|
305 | #define array_free_microshit(stem) \ |
|
|
306 | ev_free (stem ## s); stem ## cnt = stem ## max = 0; |
|
|
307 | |
1406 | |
308 | #define array_free(stem, idx) \ |
1407 | #define array_free(stem, idx) \ |
309 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
1408 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
310 | |
1409 | |
311 | /*****************************************************************************/ |
1410 | /*****************************************************************************/ |
312 | |
1411 | |
313 | static void |
1412 | /* dummy callback for pending events */ |
314 | anfds_init (ANFD *base, int count) |
1413 | static void noinline |
|
|
1414 | pendingcb (EV_P_ ev_prepare *w, int revents) |
315 | { |
1415 | { |
316 | while (count--) |
|
|
317 | { |
|
|
318 | base->head = 0; |
|
|
319 | base->events = EV_NONE; |
|
|
320 | base->reify = 0; |
|
|
321 | |
|
|
322 | ++base; |
|
|
323 | } |
|
|
324 | } |
1416 | } |
325 | |
1417 | |
326 | void |
1418 | void noinline |
327 | ev_feed_event (EV_P_ void *w, int revents) |
1419 | ev_feed_event (EV_P_ void *w, int revents) |
328 | { |
1420 | { |
329 | W w_ = (W)w; |
1421 | W w_ = (W)w; |
|
|
1422 | int pri = ABSPRI (w_); |
330 | |
1423 | |
331 | if (w_->pending) |
1424 | if (expect_false (w_->pending)) |
|
|
1425 | pendings [pri][w_->pending - 1].events |= revents; |
|
|
1426 | else |
332 | { |
1427 | { |
|
|
1428 | w_->pending = ++pendingcnt [pri]; |
|
|
1429 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
|
|
1430 | pendings [pri][w_->pending - 1].w = w_; |
333 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
1431 | pendings [pri][w_->pending - 1].events = revents; |
334 | return; |
|
|
335 | } |
1432 | } |
336 | |
|
|
337 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
|
|
338 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void)); |
|
|
339 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
|
|
340 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
|
|
341 | } |
1433 | } |
342 | |
1434 | |
343 | static void |
1435 | inline_speed void |
|
|
1436 | feed_reverse (EV_P_ W w) |
|
|
1437 | { |
|
|
1438 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
1439 | rfeeds [rfeedcnt++] = w; |
|
|
1440 | } |
|
|
1441 | |
|
|
1442 | inline_size void |
|
|
1443 | feed_reverse_done (EV_P_ int revents) |
|
|
1444 | { |
|
|
1445 | do |
|
|
1446 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
1447 | while (rfeedcnt); |
|
|
1448 | } |
|
|
1449 | |
|
|
1450 | inline_speed void |
344 | queue_events (EV_P_ W *events, int eventcnt, int type) |
1451 | queue_events (EV_P_ W *events, int eventcnt, int type) |
345 | { |
1452 | { |
346 | int i; |
1453 | int i; |
347 | |
1454 | |
348 | for (i = 0; i < eventcnt; ++i) |
1455 | for (i = 0; i < eventcnt; ++i) |
349 | ev_feed_event (EV_A_ events [i], type); |
1456 | ev_feed_event (EV_A_ events [i], type); |
350 | } |
1457 | } |
351 | |
1458 | |
|
|
1459 | /*****************************************************************************/ |
|
|
1460 | |
352 | inline void |
1461 | inline_speed void |
353 | fd_event (EV_P_ int fd, int revents) |
1462 | fd_event_nocheck (EV_P_ int fd, int revents) |
354 | { |
1463 | { |
355 | ANFD *anfd = anfds + fd; |
1464 | ANFD *anfd = anfds + fd; |
356 | struct ev_io *w; |
1465 | ev_io *w; |
357 | |
1466 | |
358 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
1467 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
359 | { |
1468 | { |
360 | int ev = w->events & revents; |
1469 | int ev = w->events & revents; |
361 | |
1470 | |
362 | if (ev) |
1471 | if (ev) |
363 | ev_feed_event (EV_A_ (W)w, ev); |
1472 | ev_feed_event (EV_A_ (W)w, ev); |
364 | } |
1473 | } |
365 | } |
1474 | } |
366 | |
1475 | |
|
|
1476 | /* do not submit kernel events for fds that have reify set */ |
|
|
1477 | /* because that means they changed while we were polling for new events */ |
|
|
1478 | inline_speed void |
|
|
1479 | fd_event (EV_P_ int fd, int revents) |
|
|
1480 | { |
|
|
1481 | ANFD *anfd = anfds + fd; |
|
|
1482 | |
|
|
1483 | if (expect_true (!anfd->reify)) |
|
|
1484 | fd_event_nocheck (EV_A_ fd, revents); |
|
|
1485 | } |
|
|
1486 | |
367 | void |
1487 | void |
368 | ev_feed_fd_event (EV_P_ int fd, int revents) |
1488 | ev_feed_fd_event (EV_P_ int fd, int revents) |
369 | { |
1489 | { |
|
|
1490 | if (fd >= 0 && fd < anfdmax) |
370 | fd_event (EV_A_ fd, revents); |
1491 | fd_event_nocheck (EV_A_ fd, revents); |
371 | } |
1492 | } |
372 | |
1493 | |
373 | /*****************************************************************************/ |
1494 | /* make sure the external fd watch events are in-sync */ |
374 | |
1495 | /* with the kernel/libev internal state */ |
375 | static void |
1496 | inline_size void |
376 | fd_reify (EV_P) |
1497 | fd_reify (EV_P) |
377 | { |
1498 | { |
378 | int i; |
1499 | int i; |
379 | |
1500 | |
|
|
1501 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
380 | for (i = 0; i < fdchangecnt; ++i) |
1502 | for (i = 0; i < fdchangecnt; ++i) |
381 | { |
1503 | { |
382 | int fd = fdchanges [i]; |
1504 | int fd = fdchanges [i]; |
383 | ANFD *anfd = anfds + fd; |
1505 | ANFD *anfd = anfds + fd; |
|
|
1506 | |
|
|
1507 | if (anfd->reify & EV__IOFDSET && anfd->head) |
|
|
1508 | { |
|
|
1509 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
1510 | |
|
|
1511 | if (handle != anfd->handle) |
|
|
1512 | { |
|
|
1513 | unsigned long arg; |
|
|
1514 | |
|
|
1515 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0)); |
|
|
1516 | |
|
|
1517 | /* handle changed, but fd didn't - we need to do it in two steps */ |
|
|
1518 | backend_modify (EV_A_ fd, anfd->events, 0); |
|
|
1519 | anfd->events = 0; |
|
|
1520 | anfd->handle = handle; |
|
|
1521 | } |
|
|
1522 | } |
|
|
1523 | } |
|
|
1524 | #endif |
|
|
1525 | |
|
|
1526 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1527 | { |
|
|
1528 | int fd = fdchanges [i]; |
|
|
1529 | ANFD *anfd = anfds + fd; |
384 | struct ev_io *w; |
1530 | ev_io *w; |
385 | |
1531 | |
386 | int events = 0; |
1532 | unsigned char o_events = anfd->events; |
|
|
1533 | unsigned char o_reify = anfd->reify; |
387 | |
1534 | |
388 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
|
|
389 | events |= w->events; |
|
|
390 | |
|
|
391 | anfd->reify = 0; |
1535 | anfd->reify = 0; |
392 | |
1536 | |
393 | method_modify (EV_A_ fd, anfd->events, events); |
1537 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
|
|
1538 | { |
394 | anfd->events = events; |
1539 | anfd->events = 0; |
|
|
1540 | |
|
|
1541 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
|
|
1542 | anfd->events |= (unsigned char)w->events; |
|
|
1543 | |
|
|
1544 | if (o_events != anfd->events) |
|
|
1545 | o_reify = EV__IOFDSET; /* actually |= */ |
|
|
1546 | } |
|
|
1547 | |
|
|
1548 | if (o_reify & EV__IOFDSET) |
|
|
1549 | backend_modify (EV_A_ fd, o_events, anfd->events); |
395 | } |
1550 | } |
396 | |
1551 | |
397 | fdchangecnt = 0; |
1552 | fdchangecnt = 0; |
398 | } |
1553 | } |
399 | |
1554 | |
400 | static void |
1555 | /* something about the given fd changed */ |
|
|
1556 | inline_size void |
401 | fd_change (EV_P_ int fd) |
1557 | fd_change (EV_P_ int fd, int flags) |
402 | { |
1558 | { |
403 | if (anfds [fd].reify) |
1559 | unsigned char reify = anfds [fd].reify; |
404 | return; |
|
|
405 | |
|
|
406 | anfds [fd].reify = 1; |
1560 | anfds [fd].reify |= flags; |
407 | |
1561 | |
|
|
1562 | if (expect_true (!reify)) |
|
|
1563 | { |
408 | ++fdchangecnt; |
1564 | ++fdchangecnt; |
409 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void)); |
1565 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
410 | fdchanges [fdchangecnt - 1] = fd; |
1566 | fdchanges [fdchangecnt - 1] = fd; |
|
|
1567 | } |
411 | } |
1568 | } |
412 | |
1569 | |
413 | static void |
1570 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
1571 | inline_speed void ecb_cold |
414 | fd_kill (EV_P_ int fd) |
1572 | fd_kill (EV_P_ int fd) |
415 | { |
1573 | { |
416 | struct ev_io *w; |
1574 | ev_io *w; |
417 | |
1575 | |
418 | while ((w = (struct ev_io *)anfds [fd].head)) |
1576 | while ((w = (ev_io *)anfds [fd].head)) |
419 | { |
1577 | { |
420 | ev_io_stop (EV_A_ w); |
1578 | ev_io_stop (EV_A_ w); |
421 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1579 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
422 | } |
1580 | } |
423 | } |
1581 | } |
424 | |
1582 | |
425 | static int |
1583 | /* check whether the given fd is actually valid, for error recovery */ |
|
|
1584 | inline_size int ecb_cold |
426 | fd_valid (int fd) |
1585 | fd_valid (int fd) |
427 | { |
1586 | { |
428 | #ifdef WIN32 |
1587 | #ifdef _WIN32 |
429 | return !!win32_get_osfhandle (fd); |
1588 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
430 | #else |
1589 | #else |
431 | return fcntl (fd, F_GETFD) != -1; |
1590 | return fcntl (fd, F_GETFD) != -1; |
432 | #endif |
1591 | #endif |
433 | } |
1592 | } |
434 | |
1593 | |
435 | /* called on EBADF to verify fds */ |
1594 | /* called on EBADF to verify fds */ |
436 | static void |
1595 | static void noinline ecb_cold |
437 | fd_ebadf (EV_P) |
1596 | fd_ebadf (EV_P) |
438 | { |
1597 | { |
439 | int fd; |
1598 | int fd; |
440 | |
1599 | |
441 | for (fd = 0; fd < anfdmax; ++fd) |
1600 | for (fd = 0; fd < anfdmax; ++fd) |
442 | if (anfds [fd].events) |
1601 | if (anfds [fd].events) |
443 | if (!fd_valid (fd) == -1 && errno == EBADF) |
1602 | if (!fd_valid (fd) && errno == EBADF) |
444 | fd_kill (EV_A_ fd); |
1603 | fd_kill (EV_A_ fd); |
445 | } |
1604 | } |
446 | |
1605 | |
447 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1606 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
448 | static void |
1607 | static void noinline ecb_cold |
449 | fd_enomem (EV_P) |
1608 | fd_enomem (EV_P) |
450 | { |
1609 | { |
451 | int fd; |
1610 | int fd; |
452 | |
1611 | |
453 | for (fd = anfdmax; fd--; ) |
1612 | for (fd = anfdmax; fd--; ) |
454 | if (anfds [fd].events) |
1613 | if (anfds [fd].events) |
455 | { |
1614 | { |
456 | fd_kill (EV_A_ fd); |
1615 | fd_kill (EV_A_ fd); |
457 | return; |
1616 | break; |
458 | } |
1617 | } |
459 | } |
1618 | } |
460 | |
1619 | |
461 | /* usually called after fork if method needs to re-arm all fds from scratch */ |
1620 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
462 | static void |
1621 | static void noinline |
463 | fd_rearm_all (EV_P) |
1622 | fd_rearm_all (EV_P) |
464 | { |
1623 | { |
465 | int fd; |
1624 | int fd; |
466 | |
1625 | |
467 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
468 | for (fd = 0; fd < anfdmax; ++fd) |
1626 | for (fd = 0; fd < anfdmax; ++fd) |
469 | if (anfds [fd].events) |
1627 | if (anfds [fd].events) |
470 | { |
1628 | { |
471 | anfds [fd].events = 0; |
1629 | anfds [fd].events = 0; |
472 | fd_change (EV_A_ fd); |
1630 | anfds [fd].emask = 0; |
|
|
1631 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
473 | } |
1632 | } |
474 | } |
1633 | } |
475 | |
1634 | |
|
|
1635 | /* used to prepare libev internal fd's */ |
|
|
1636 | /* this is not fork-safe */ |
|
|
1637 | inline_speed void |
|
|
1638 | fd_intern (int fd) |
|
|
1639 | { |
|
|
1640 | #ifdef _WIN32 |
|
|
1641 | unsigned long arg = 1; |
|
|
1642 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
1643 | #else |
|
|
1644 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1645 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1646 | #endif |
|
|
1647 | } |
|
|
1648 | |
476 | /*****************************************************************************/ |
1649 | /*****************************************************************************/ |
477 | |
1650 | |
|
|
1651 | /* |
|
|
1652 | * the heap functions want a real array index. array index 0 is guaranteed to not |
|
|
1653 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
|
|
1654 | * the branching factor of the d-tree. |
|
|
1655 | */ |
|
|
1656 | |
|
|
1657 | /* |
|
|
1658 | * at the moment we allow libev the luxury of two heaps, |
|
|
1659 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
1660 | * which is more cache-efficient. |
|
|
1661 | * the difference is about 5% with 50000+ watchers. |
|
|
1662 | */ |
|
|
1663 | #if EV_USE_4HEAP |
|
|
1664 | |
|
|
1665 | #define DHEAP 4 |
|
|
1666 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
1667 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
1668 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
|
|
1669 | |
|
|
1670 | /* away from the root */ |
|
|
1671 | inline_speed void |
|
|
1672 | downheap (ANHE *heap, int N, int k) |
|
|
1673 | { |
|
|
1674 | ANHE he = heap [k]; |
|
|
1675 | ANHE *E = heap + N + HEAP0; |
|
|
1676 | |
|
|
1677 | for (;;) |
|
|
1678 | { |
|
|
1679 | ev_tstamp minat; |
|
|
1680 | ANHE *minpos; |
|
|
1681 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
|
|
1682 | |
|
|
1683 | /* find minimum child */ |
|
|
1684 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
1685 | { |
|
|
1686 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
1687 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
1688 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
1689 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
1690 | } |
|
|
1691 | else if (pos < E) |
|
|
1692 | { |
|
|
1693 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
1694 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
1695 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
1696 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
1697 | } |
|
|
1698 | else |
|
|
1699 | break; |
|
|
1700 | |
|
|
1701 | if (ANHE_at (he) <= minat) |
|
|
1702 | break; |
|
|
1703 | |
|
|
1704 | heap [k] = *minpos; |
|
|
1705 | ev_active (ANHE_w (*minpos)) = k; |
|
|
1706 | |
|
|
1707 | k = minpos - heap; |
|
|
1708 | } |
|
|
1709 | |
|
|
1710 | heap [k] = he; |
|
|
1711 | ev_active (ANHE_w (he)) = k; |
|
|
1712 | } |
|
|
1713 | |
|
|
1714 | #else /* 4HEAP */ |
|
|
1715 | |
|
|
1716 | #define HEAP0 1 |
|
|
1717 | #define HPARENT(k) ((k) >> 1) |
|
|
1718 | #define UPHEAP_DONE(p,k) (!(p)) |
|
|
1719 | |
|
|
1720 | /* away from the root */ |
|
|
1721 | inline_speed void |
|
|
1722 | downheap (ANHE *heap, int N, int k) |
|
|
1723 | { |
|
|
1724 | ANHE he = heap [k]; |
|
|
1725 | |
|
|
1726 | for (;;) |
|
|
1727 | { |
|
|
1728 | int c = k << 1; |
|
|
1729 | |
|
|
1730 | if (c >= N + HEAP0) |
|
|
1731 | break; |
|
|
1732 | |
|
|
1733 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
1734 | ? 1 : 0; |
|
|
1735 | |
|
|
1736 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
1737 | break; |
|
|
1738 | |
|
|
1739 | heap [k] = heap [c]; |
|
|
1740 | ev_active (ANHE_w (heap [k])) = k; |
|
|
1741 | |
|
|
1742 | k = c; |
|
|
1743 | } |
|
|
1744 | |
|
|
1745 | heap [k] = he; |
|
|
1746 | ev_active (ANHE_w (he)) = k; |
|
|
1747 | } |
|
|
1748 | #endif |
|
|
1749 | |
|
|
1750 | /* towards the root */ |
|
|
1751 | inline_speed void |
|
|
1752 | upheap (ANHE *heap, int k) |
|
|
1753 | { |
|
|
1754 | ANHE he = heap [k]; |
|
|
1755 | |
|
|
1756 | for (;;) |
|
|
1757 | { |
|
|
1758 | int p = HPARENT (k); |
|
|
1759 | |
|
|
1760 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
1761 | break; |
|
|
1762 | |
|
|
1763 | heap [k] = heap [p]; |
|
|
1764 | ev_active (ANHE_w (heap [k])) = k; |
|
|
1765 | k = p; |
|
|
1766 | } |
|
|
1767 | |
|
|
1768 | heap [k] = he; |
|
|
1769 | ev_active (ANHE_w (he)) = k; |
|
|
1770 | } |
|
|
1771 | |
|
|
1772 | /* move an element suitably so it is in a correct place */ |
|
|
1773 | inline_size void |
|
|
1774 | adjustheap (ANHE *heap, int N, int k) |
|
|
1775 | { |
|
|
1776 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
|
|
1777 | upheap (heap, k); |
|
|
1778 | else |
|
|
1779 | downheap (heap, N, k); |
|
|
1780 | } |
|
|
1781 | |
|
|
1782 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
1783 | inline_size void |
|
|
1784 | reheap (ANHE *heap, int N) |
|
|
1785 | { |
|
|
1786 | int i; |
|
|
1787 | |
|
|
1788 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
1789 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
1790 | for (i = 0; i < N; ++i) |
|
|
1791 | upheap (heap, i + HEAP0); |
|
|
1792 | } |
|
|
1793 | |
|
|
1794 | /*****************************************************************************/ |
|
|
1795 | |
|
|
1796 | /* associate signal watchers to a signal signal */ |
|
|
1797 | typedef struct |
|
|
1798 | { |
|
|
1799 | EV_ATOMIC_T pending; |
|
|
1800 | #if EV_MULTIPLICITY |
|
|
1801 | EV_P; |
|
|
1802 | #endif |
|
|
1803 | WL head; |
|
|
1804 | } ANSIG; |
|
|
1805 | |
|
|
1806 | static ANSIG signals [EV_NSIG - 1]; |
|
|
1807 | |
|
|
1808 | /*****************************************************************************/ |
|
|
1809 | |
|
|
1810 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
1811 | |
|
|
1812 | static void noinline ecb_cold |
|
|
1813 | evpipe_init (EV_P) |
|
|
1814 | { |
|
|
1815 | if (!ev_is_active (&pipe_w)) |
|
|
1816 | { |
|
|
1817 | # if EV_USE_EVENTFD |
|
|
1818 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1819 | if (evfd < 0 && errno == EINVAL) |
|
|
1820 | evfd = eventfd (0, 0); |
|
|
1821 | |
|
|
1822 | if (evfd >= 0) |
|
|
1823 | { |
|
|
1824 | evpipe [0] = -1; |
|
|
1825 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
|
|
1826 | ev_io_set (&pipe_w, evfd, EV_READ); |
|
|
1827 | } |
|
|
1828 | else |
|
|
1829 | # endif |
|
|
1830 | { |
|
|
1831 | while (pipe (evpipe)) |
|
|
1832 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
1833 | |
|
|
1834 | fd_intern (evpipe [0]); |
|
|
1835 | fd_intern (evpipe [1]); |
|
|
1836 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
|
|
1837 | } |
|
|
1838 | |
|
|
1839 | ev_io_start (EV_A_ &pipe_w); |
|
|
1840 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1841 | } |
|
|
1842 | } |
|
|
1843 | |
|
|
1844 | inline_speed void |
|
|
1845 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1846 | { |
|
|
1847 | if (expect_true (*flag)) |
|
|
1848 | return; |
|
|
1849 | |
|
|
1850 | *flag = 1; |
|
|
1851 | |
|
|
1852 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
1853 | |
|
|
1854 | pipe_write_skipped = 1; |
|
|
1855 | |
|
|
1856 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
1857 | |
|
|
1858 | if (pipe_write_wanted) |
|
|
1859 | { |
|
|
1860 | int old_errno; |
|
|
1861 | |
|
|
1862 | pipe_write_skipped = 0; /* just an optimisation, no fence needed */ |
|
|
1863 | |
|
|
1864 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
1865 | |
|
|
1866 | #if EV_USE_EVENTFD |
|
|
1867 | if (evfd >= 0) |
|
|
1868 | { |
|
|
1869 | uint64_t counter = 1; |
|
|
1870 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1871 | } |
|
|
1872 | else |
|
|
1873 | #endif |
|
|
1874 | { |
|
|
1875 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1876 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1877 | /* so when you think this write should be a send instead, please find out */ |
|
|
1878 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1879 | /* tell me. thank you. */ |
|
|
1880 | /* it might be that your problem is that your environment needs EV_USE_WSASOCKET */ |
|
|
1881 | /* check the ev documentation on how to use this flag */ |
|
|
1882 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
1883 | } |
|
|
1884 | |
|
|
1885 | errno = old_errno; |
|
|
1886 | } |
|
|
1887 | } |
|
|
1888 | |
|
|
1889 | /* called whenever the libev signal pipe */ |
|
|
1890 | /* got some events (signal, async) */ |
478 | static void |
1891 | static void |
479 | upheap (WT *heap, int k) |
1892 | pipecb (EV_P_ ev_io *iow, int revents) |
480 | { |
1893 | { |
481 | WT w = heap [k]; |
1894 | int i; |
482 | |
1895 | |
483 | while (k && heap [k >> 1]->at > w->at) |
1896 | if (revents & EV_READ) |
484 | { |
|
|
485 | heap [k] = heap [k >> 1]; |
|
|
486 | ((W)heap [k])->active = k + 1; |
|
|
487 | k >>= 1; |
|
|
488 | } |
1897 | { |
|
|
1898 | #if EV_USE_EVENTFD |
|
|
1899 | if (evfd >= 0) |
|
|
1900 | { |
|
|
1901 | uint64_t counter; |
|
|
1902 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1903 | } |
|
|
1904 | else |
|
|
1905 | #endif |
|
|
1906 | { |
|
|
1907 | char dummy; |
|
|
1908 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
|
|
1909 | read (evpipe [0], &dummy, 1); |
|
|
1910 | } |
|
|
1911 | } |
489 | |
1912 | |
490 | heap [k] = w; |
1913 | pipe_write_skipped = 0; |
491 | ((W)heap [k])->active = k + 1; |
|
|
492 | |
1914 | |
|
|
1915 | #if EV_SIGNAL_ENABLE |
|
|
1916 | if (sig_pending) |
|
|
1917 | { |
|
|
1918 | sig_pending = 0; |
|
|
1919 | |
|
|
1920 | for (i = EV_NSIG - 1; i--; ) |
|
|
1921 | if (expect_false (signals [i].pending)) |
|
|
1922 | ev_feed_signal_event (EV_A_ i + 1); |
|
|
1923 | } |
|
|
1924 | #endif |
|
|
1925 | |
|
|
1926 | #if EV_ASYNC_ENABLE |
|
|
1927 | if (async_pending) |
|
|
1928 | { |
|
|
1929 | async_pending = 0; |
|
|
1930 | |
|
|
1931 | for (i = asynccnt; i--; ) |
|
|
1932 | if (asyncs [i]->sent) |
|
|
1933 | { |
|
|
1934 | asyncs [i]->sent = 0; |
|
|
1935 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
1936 | } |
|
|
1937 | } |
|
|
1938 | #endif |
|
|
1939 | } |
|
|
1940 | |
|
|
1941 | /*****************************************************************************/ |
|
|
1942 | |
|
|
1943 | void |
|
|
1944 | ev_feed_signal (int signum) |
|
|
1945 | { |
|
|
1946 | #if EV_MULTIPLICITY |
|
|
1947 | EV_P = signals [signum - 1].loop; |
|
|
1948 | |
|
|
1949 | if (!EV_A) |
|
|
1950 | return; |
|
|
1951 | #endif |
|
|
1952 | |
|
|
1953 | if (!ev_active (&pipe_w)) |
|
|
1954 | return; |
|
|
1955 | |
|
|
1956 | signals [signum - 1].pending = 1; |
|
|
1957 | evpipe_write (EV_A_ &sig_pending); |
493 | } |
1958 | } |
494 | |
1959 | |
495 | static void |
1960 | static void |
496 | downheap (WT *heap, int N, int k) |
|
|
497 | { |
|
|
498 | WT w = heap [k]; |
|
|
499 | |
|
|
500 | while (k < (N >> 1)) |
|
|
501 | { |
|
|
502 | int j = k << 1; |
|
|
503 | |
|
|
504 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
|
|
505 | ++j; |
|
|
506 | |
|
|
507 | if (w->at <= heap [j]->at) |
|
|
508 | break; |
|
|
509 | |
|
|
510 | heap [k] = heap [j]; |
|
|
511 | ((W)heap [k])->active = k + 1; |
|
|
512 | k = j; |
|
|
513 | } |
|
|
514 | |
|
|
515 | heap [k] = w; |
|
|
516 | ((W)heap [k])->active = k + 1; |
|
|
517 | } |
|
|
518 | |
|
|
519 | /*****************************************************************************/ |
|
|
520 | |
|
|
521 | typedef struct |
|
|
522 | { |
|
|
523 | WL head; |
|
|
524 | sig_atomic_t volatile gotsig; |
|
|
525 | } ANSIG; |
|
|
526 | |
|
|
527 | static ANSIG *signals; |
|
|
528 | static int signalmax; |
|
|
529 | |
|
|
530 | static int sigpipe [2]; |
|
|
531 | static sig_atomic_t volatile gotsig; |
|
|
532 | static struct ev_io sigev; |
|
|
533 | |
|
|
534 | static void |
|
|
535 | signals_init (ANSIG *base, int count) |
|
|
536 | { |
|
|
537 | while (count--) |
|
|
538 | { |
|
|
539 | base->head = 0; |
|
|
540 | base->gotsig = 0; |
|
|
541 | |
|
|
542 | ++base; |
|
|
543 | } |
|
|
544 | } |
|
|
545 | |
|
|
546 | static void |
|
|
547 | sighandler (int signum) |
1961 | ev_sighandler (int signum) |
548 | { |
1962 | { |
549 | #if WIN32 |
|
|
550 | signal (signum, sighandler); |
|
|
551 | #endif |
|
|
552 | |
|
|
553 | signals [signum - 1].gotsig = 1; |
|
|
554 | |
|
|
555 | if (!gotsig) |
|
|
556 | { |
|
|
557 | int old_errno = errno; |
|
|
558 | gotsig = 1; |
|
|
559 | #ifdef WIN32 |
1963 | #ifdef _WIN32 |
560 | send (sigpipe [1], &signum, 1, MSG_DONTWAIT); |
1964 | signal (signum, ev_sighandler); |
561 | #else |
|
|
562 | write (sigpipe [1], &signum, 1); |
|
|
563 | #endif |
1965 | #endif |
564 | errno = old_errno; |
|
|
565 | } |
|
|
566 | } |
|
|
567 | |
1966 | |
568 | void |
1967 | ev_feed_signal (signum); |
|
|
1968 | } |
|
|
1969 | |
|
|
1970 | void noinline |
569 | ev_feed_signal_event (EV_P_ int signum) |
1971 | ev_feed_signal_event (EV_P_ int signum) |
570 | { |
1972 | { |
571 | WL w; |
1973 | WL w; |
572 | |
1974 | |
|
|
1975 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1976 | return; |
|
|
1977 | |
|
|
1978 | --signum; |
|
|
1979 | |
573 | #if EV_MULTIPLICITY |
1980 | #if EV_MULTIPLICITY |
574 | assert (("feeding signal events is only supported in the default loop", loop == default_loop)); |
1981 | /* it is permissible to try to feed a signal to the wrong loop */ |
575 | #endif |
1982 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
576 | |
1983 | |
577 | --signum; |
1984 | if (expect_false (signals [signum].loop != EV_A)) |
578 | |
|
|
579 | if (signum < 0 || signum >= signalmax) |
|
|
580 | return; |
1985 | return; |
|
|
1986 | #endif |
581 | |
1987 | |
582 | signals [signum].gotsig = 0; |
1988 | signals [signum].pending = 0; |
583 | |
1989 | |
584 | for (w = signals [signum].head; w; w = w->next) |
1990 | for (w = signals [signum].head; w; w = w->next) |
585 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1991 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
586 | } |
1992 | } |
587 | |
1993 | |
|
|
1994 | #if EV_USE_SIGNALFD |
588 | static void |
1995 | static void |
589 | sigcb (EV_P_ struct ev_io *iow, int revents) |
1996 | sigfdcb (EV_P_ ev_io *iow, int revents) |
590 | { |
1997 | { |
591 | int signum; |
1998 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
592 | |
1999 | |
593 | #ifdef WIN32 |
2000 | for (;;) |
594 | recv (sigpipe [0], &revents, 1, MSG_DONTWAIT); |
2001 | { |
595 | #else |
2002 | ssize_t res = read (sigfd, si, sizeof (si)); |
596 | read (sigpipe [0], &revents, 1); |
|
|
597 | #endif |
|
|
598 | gotsig = 0; |
|
|
599 | |
2003 | |
600 | for (signum = signalmax; signum--; ) |
2004 | /* not ISO-C, as res might be -1, but works with SuS */ |
601 | if (signals [signum].gotsig) |
2005 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
602 | ev_feed_signal_event (EV_A_ signum + 1); |
2006 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
603 | } |
|
|
604 | |
2007 | |
605 | static void |
2008 | if (res < (ssize_t)sizeof (si)) |
606 | siginit (EV_P) |
2009 | break; |
607 | { |
2010 | } |
608 | #ifndef WIN32 |
|
|
609 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
|
|
610 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
|
|
611 | |
|
|
612 | /* rather than sort out wether we really need nb, set it */ |
|
|
613 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
|
|
614 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
|
|
615 | #endif |
|
|
616 | |
|
|
617 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
618 | ev_io_start (EV_A_ &sigev); |
|
|
619 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
|
|
620 | } |
2011 | } |
|
|
2012 | #endif |
|
|
2013 | |
|
|
2014 | #endif |
621 | |
2015 | |
622 | /*****************************************************************************/ |
2016 | /*****************************************************************************/ |
623 | |
2017 | |
624 | static struct ev_child *childs [PID_HASHSIZE]; |
2018 | #if EV_CHILD_ENABLE |
|
|
2019 | static WL childs [EV_PID_HASHSIZE]; |
625 | |
2020 | |
626 | #ifndef WIN32 |
|
|
627 | |
|
|
628 | static struct ev_signal childev; |
2021 | static ev_signal childev; |
|
|
2022 | |
|
|
2023 | #ifndef WIFCONTINUED |
|
|
2024 | # define WIFCONTINUED(status) 0 |
|
|
2025 | #endif |
|
|
2026 | |
|
|
2027 | /* handle a single child status event */ |
|
|
2028 | inline_speed void |
|
|
2029 | child_reap (EV_P_ int chain, int pid, int status) |
|
|
2030 | { |
|
|
2031 | ev_child *w; |
|
|
2032 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
|
|
2033 | |
|
|
2034 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
2035 | { |
|
|
2036 | if ((w->pid == pid || !w->pid) |
|
|
2037 | && (!traced || (w->flags & 1))) |
|
|
2038 | { |
|
|
2039 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
|
|
2040 | w->rpid = pid; |
|
|
2041 | w->rstatus = status; |
|
|
2042 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
2043 | } |
|
|
2044 | } |
|
|
2045 | } |
629 | |
2046 | |
630 | #ifndef WCONTINUED |
2047 | #ifndef WCONTINUED |
631 | # define WCONTINUED 0 |
2048 | # define WCONTINUED 0 |
632 | #endif |
2049 | #endif |
633 | |
2050 | |
|
|
2051 | /* called on sigchld etc., calls waitpid */ |
634 | static void |
2052 | static void |
635 | child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) |
|
|
636 | { |
|
|
637 | struct ev_child *w; |
|
|
638 | |
|
|
639 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
|
|
640 | if (w->pid == pid || !w->pid) |
|
|
641 | { |
|
|
642 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
|
|
643 | w->rpid = pid; |
|
|
644 | w->rstatus = status; |
|
|
645 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
646 | } |
|
|
647 | } |
|
|
648 | |
|
|
649 | static void |
|
|
650 | childcb (EV_P_ struct ev_signal *sw, int revents) |
2053 | childcb (EV_P_ ev_signal *sw, int revents) |
651 | { |
2054 | { |
652 | int pid, status; |
2055 | int pid, status; |
653 | |
2056 | |
|
|
2057 | /* some systems define WCONTINUED but then fail to support it (linux 2.4) */ |
654 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
2058 | if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
655 | { |
2059 | if (!WCONTINUED |
|
|
2060 | || errno != EINVAL |
|
|
2061 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
|
|
2062 | return; |
|
|
2063 | |
656 | /* make sure we are called again until all childs have been reaped */ |
2064 | /* make sure we are called again until all children have been reaped */ |
|
|
2065 | /* we need to do it this way so that the callback gets called before we continue */ |
657 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
2066 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
658 | |
2067 | |
659 | child_reap (EV_A_ sw, pid, pid, status); |
2068 | child_reap (EV_A_ pid, pid, status); |
|
|
2069 | if ((EV_PID_HASHSIZE) > 1) |
660 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
2070 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
661 | } |
|
|
662 | } |
2071 | } |
663 | |
2072 | |
664 | #endif |
2073 | #endif |
665 | |
2074 | |
666 | /*****************************************************************************/ |
2075 | /*****************************************************************************/ |
667 | |
2076 | |
|
|
2077 | #if EV_USE_IOCP |
|
|
2078 | # include "ev_iocp.c" |
|
|
2079 | #endif |
|
|
2080 | #if EV_USE_PORT |
|
|
2081 | # include "ev_port.c" |
|
|
2082 | #endif |
668 | #if EV_USE_KQUEUE |
2083 | #if EV_USE_KQUEUE |
669 | # include "ev_kqueue.c" |
2084 | # include "ev_kqueue.c" |
670 | #endif |
2085 | #endif |
671 | #if EV_USE_EPOLL |
2086 | #if EV_USE_EPOLL |
672 | # include "ev_epoll.c" |
2087 | # include "ev_epoll.c" |
… | |
… | |
676 | #endif |
2091 | #endif |
677 | #if EV_USE_SELECT |
2092 | #if EV_USE_SELECT |
678 | # include "ev_select.c" |
2093 | # include "ev_select.c" |
679 | #endif |
2094 | #endif |
680 | |
2095 | |
681 | int |
2096 | int ecb_cold |
682 | ev_version_major (void) |
2097 | ev_version_major (void) |
683 | { |
2098 | { |
684 | return EV_VERSION_MAJOR; |
2099 | return EV_VERSION_MAJOR; |
685 | } |
2100 | } |
686 | |
2101 | |
687 | int |
2102 | int ecb_cold |
688 | ev_version_minor (void) |
2103 | ev_version_minor (void) |
689 | { |
2104 | { |
690 | return EV_VERSION_MINOR; |
2105 | return EV_VERSION_MINOR; |
691 | } |
2106 | } |
692 | |
2107 | |
693 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2108 | /* return true if we are running with elevated privileges and should ignore env variables */ |
694 | static int |
2109 | int inline_size ecb_cold |
695 | enable_secure (void) |
2110 | enable_secure (void) |
696 | { |
2111 | { |
697 | #ifdef WIN32 |
2112 | #ifdef _WIN32 |
698 | return 0; |
2113 | return 0; |
699 | #else |
2114 | #else |
700 | return getuid () != geteuid () |
2115 | return getuid () != geteuid () |
701 | || getgid () != getegid (); |
2116 | || getgid () != getegid (); |
702 | #endif |
2117 | #endif |
703 | } |
2118 | } |
704 | |
2119 | |
705 | int |
2120 | unsigned int ecb_cold |
|
|
2121 | ev_supported_backends (void) |
|
|
2122 | { |
|
|
2123 | unsigned int flags = 0; |
|
|
2124 | |
|
|
2125 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
|
|
2126 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
|
|
2127 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
2128 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
2129 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
|
|
2130 | |
|
|
2131 | return flags; |
|
|
2132 | } |
|
|
2133 | |
|
|
2134 | unsigned int ecb_cold |
|
|
2135 | ev_recommended_backends (void) |
|
|
2136 | { |
|
|
2137 | unsigned int flags = ev_supported_backends (); |
|
|
2138 | |
|
|
2139 | #ifndef __NetBSD__ |
|
|
2140 | /* kqueue is borked on everything but netbsd apparently */ |
|
|
2141 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
|
|
2142 | flags &= ~EVBACKEND_KQUEUE; |
|
|
2143 | #endif |
|
|
2144 | #ifdef __APPLE__ |
|
|
2145 | /* only select works correctly on that "unix-certified" platform */ |
|
|
2146 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
2147 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
|
|
2148 | #endif |
|
|
2149 | #ifdef __FreeBSD__ |
|
|
2150 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
|
|
2151 | #endif |
|
|
2152 | |
|
|
2153 | return flags; |
|
|
2154 | } |
|
|
2155 | |
|
|
2156 | unsigned int ecb_cold |
|
|
2157 | ev_embeddable_backends (void) |
|
|
2158 | { |
|
|
2159 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
|
|
2160 | |
|
|
2161 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
2162 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
|
|
2163 | flags &= ~EVBACKEND_EPOLL; |
|
|
2164 | |
|
|
2165 | return flags; |
|
|
2166 | } |
|
|
2167 | |
|
|
2168 | unsigned int |
|
|
2169 | ev_backend (EV_P) |
|
|
2170 | { |
|
|
2171 | return backend; |
|
|
2172 | } |
|
|
2173 | |
|
|
2174 | #if EV_FEATURE_API |
|
|
2175 | unsigned int |
|
|
2176 | ev_iteration (EV_P) |
|
|
2177 | { |
|
|
2178 | return loop_count; |
|
|
2179 | } |
|
|
2180 | |
|
|
2181 | unsigned int |
706 | ev_method (EV_P) |
2182 | ev_depth (EV_P) |
707 | { |
2183 | { |
708 | return method; |
2184 | return loop_depth; |
709 | } |
2185 | } |
710 | |
2186 | |
711 | static void |
2187 | void |
712 | loop_init (EV_P_ int methods) |
2188 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
713 | { |
2189 | { |
714 | if (!method) |
2190 | io_blocktime = interval; |
|
|
2191 | } |
|
|
2192 | |
|
|
2193 | void |
|
|
2194 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
2195 | { |
|
|
2196 | timeout_blocktime = interval; |
|
|
2197 | } |
|
|
2198 | |
|
|
2199 | void |
|
|
2200 | ev_set_userdata (EV_P_ void *data) |
|
|
2201 | { |
|
|
2202 | userdata = data; |
|
|
2203 | } |
|
|
2204 | |
|
|
2205 | void * |
|
|
2206 | ev_userdata (EV_P) |
|
|
2207 | { |
|
|
2208 | return userdata; |
|
|
2209 | } |
|
|
2210 | |
|
|
2211 | void |
|
|
2212 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
2213 | { |
|
|
2214 | invoke_cb = invoke_pending_cb; |
|
|
2215 | } |
|
|
2216 | |
|
|
2217 | void |
|
|
2218 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
2219 | { |
|
|
2220 | release_cb = release; |
|
|
2221 | acquire_cb = acquire; |
|
|
2222 | } |
|
|
2223 | #endif |
|
|
2224 | |
|
|
2225 | /* initialise a loop structure, must be zero-initialised */ |
|
|
2226 | static void noinline ecb_cold |
|
|
2227 | loop_init (EV_P_ unsigned int flags) |
|
|
2228 | { |
|
|
2229 | if (!backend) |
715 | { |
2230 | { |
|
|
2231 | origflags = flags; |
|
|
2232 | |
|
|
2233 | #if EV_USE_REALTIME |
|
|
2234 | if (!have_realtime) |
|
|
2235 | { |
|
|
2236 | struct timespec ts; |
|
|
2237 | |
|
|
2238 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
2239 | have_realtime = 1; |
|
|
2240 | } |
|
|
2241 | #endif |
|
|
2242 | |
716 | #if EV_USE_MONOTONIC |
2243 | #if EV_USE_MONOTONIC |
|
|
2244 | if (!have_monotonic) |
|
|
2245 | { |
|
|
2246 | struct timespec ts; |
|
|
2247 | |
|
|
2248 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
|
|
2249 | have_monotonic = 1; |
|
|
2250 | } |
|
|
2251 | #endif |
|
|
2252 | |
|
|
2253 | /* pid check not overridable via env */ |
|
|
2254 | #ifndef _WIN32 |
|
|
2255 | if (flags & EVFLAG_FORKCHECK) |
|
|
2256 | curpid = getpid (); |
|
|
2257 | #endif |
|
|
2258 | |
|
|
2259 | if (!(flags & EVFLAG_NOENV) |
|
|
2260 | && !enable_secure () |
|
|
2261 | && getenv ("LIBEV_FLAGS")) |
|
|
2262 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
2263 | |
|
|
2264 | ev_rt_now = ev_time (); |
|
|
2265 | mn_now = get_clock (); |
|
|
2266 | now_floor = mn_now; |
|
|
2267 | rtmn_diff = ev_rt_now - mn_now; |
|
|
2268 | #if EV_FEATURE_API |
|
|
2269 | invoke_cb = ev_invoke_pending; |
|
|
2270 | #endif |
|
|
2271 | |
|
|
2272 | io_blocktime = 0.; |
|
|
2273 | timeout_blocktime = 0.; |
|
|
2274 | backend = 0; |
|
|
2275 | backend_fd = -1; |
|
|
2276 | sig_pending = 0; |
|
|
2277 | #if EV_ASYNC_ENABLE |
|
|
2278 | async_pending = 0; |
|
|
2279 | #endif |
|
|
2280 | pipe_write_skipped = 0; |
|
|
2281 | pipe_write_wanted = 0; |
|
|
2282 | #if EV_USE_INOTIFY |
|
|
2283 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
|
|
2284 | #endif |
|
|
2285 | #if EV_USE_SIGNALFD |
|
|
2286 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
|
|
2287 | #endif |
|
|
2288 | |
|
|
2289 | if (!(flags & EVBACKEND_MASK)) |
|
|
2290 | flags |= ev_recommended_backends (); |
|
|
2291 | |
|
|
2292 | #if EV_USE_IOCP |
|
|
2293 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
2294 | #endif |
|
|
2295 | #if EV_USE_PORT |
|
|
2296 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
|
|
2297 | #endif |
|
|
2298 | #if EV_USE_KQUEUE |
|
|
2299 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
|
|
2300 | #endif |
|
|
2301 | #if EV_USE_EPOLL |
|
|
2302 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
|
|
2303 | #endif |
|
|
2304 | #if EV_USE_POLL |
|
|
2305 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
|
|
2306 | #endif |
|
|
2307 | #if EV_USE_SELECT |
|
|
2308 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
|
|
2309 | #endif |
|
|
2310 | |
|
|
2311 | ev_prepare_init (&pending_w, pendingcb); |
|
|
2312 | |
|
|
2313 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
2314 | ev_init (&pipe_w, pipecb); |
|
|
2315 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
2316 | #endif |
|
|
2317 | } |
|
|
2318 | } |
|
|
2319 | |
|
|
2320 | /* free up a loop structure */ |
|
|
2321 | void ecb_cold |
|
|
2322 | ev_loop_destroy (EV_P) |
|
|
2323 | { |
|
|
2324 | int i; |
|
|
2325 | |
|
|
2326 | #if EV_MULTIPLICITY |
|
|
2327 | /* mimic free (0) */ |
|
|
2328 | if (!EV_A) |
|
|
2329 | return; |
|
|
2330 | #endif |
|
|
2331 | |
|
|
2332 | #if EV_CLEANUP_ENABLE |
|
|
2333 | /* queue cleanup watchers (and execute them) */ |
|
|
2334 | if (expect_false (cleanupcnt)) |
|
|
2335 | { |
|
|
2336 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
2337 | EV_INVOKE_PENDING; |
|
|
2338 | } |
|
|
2339 | #endif |
|
|
2340 | |
|
|
2341 | #if EV_CHILD_ENABLE |
|
|
2342 | if (ev_is_active (&childev)) |
|
|
2343 | { |
|
|
2344 | ev_ref (EV_A); /* child watcher */ |
|
|
2345 | ev_signal_stop (EV_A_ &childev); |
|
|
2346 | } |
|
|
2347 | #endif |
|
|
2348 | |
|
|
2349 | if (ev_is_active (&pipe_w)) |
|
|
2350 | { |
|
|
2351 | /*ev_ref (EV_A);*/ |
|
|
2352 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
|
|
2353 | |
|
|
2354 | #if EV_USE_EVENTFD |
|
|
2355 | if (evfd >= 0) |
|
|
2356 | close (evfd); |
|
|
2357 | #endif |
|
|
2358 | |
|
|
2359 | if (evpipe [0] >= 0) |
|
|
2360 | { |
|
|
2361 | EV_WIN32_CLOSE_FD (evpipe [0]); |
|
|
2362 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
2363 | } |
|
|
2364 | } |
|
|
2365 | |
|
|
2366 | #if EV_USE_SIGNALFD |
|
|
2367 | if (ev_is_active (&sigfd_w)) |
|
|
2368 | close (sigfd); |
|
|
2369 | #endif |
|
|
2370 | |
|
|
2371 | #if EV_USE_INOTIFY |
|
|
2372 | if (fs_fd >= 0) |
|
|
2373 | close (fs_fd); |
|
|
2374 | #endif |
|
|
2375 | |
|
|
2376 | if (backend_fd >= 0) |
|
|
2377 | close (backend_fd); |
|
|
2378 | |
|
|
2379 | #if EV_USE_IOCP |
|
|
2380 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
2381 | #endif |
|
|
2382 | #if EV_USE_PORT |
|
|
2383 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
|
|
2384 | #endif |
|
|
2385 | #if EV_USE_KQUEUE |
|
|
2386 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
|
|
2387 | #endif |
|
|
2388 | #if EV_USE_EPOLL |
|
|
2389 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
|
|
2390 | #endif |
|
|
2391 | #if EV_USE_POLL |
|
|
2392 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
|
|
2393 | #endif |
|
|
2394 | #if EV_USE_SELECT |
|
|
2395 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
|
|
2396 | #endif |
|
|
2397 | |
|
|
2398 | for (i = NUMPRI; i--; ) |
|
|
2399 | { |
|
|
2400 | array_free (pending, [i]); |
|
|
2401 | #if EV_IDLE_ENABLE |
|
|
2402 | array_free (idle, [i]); |
|
|
2403 | #endif |
|
|
2404 | } |
|
|
2405 | |
|
|
2406 | ev_free (anfds); anfds = 0; anfdmax = 0; |
|
|
2407 | |
|
|
2408 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
2409 | array_free (rfeed, EMPTY); |
|
|
2410 | array_free (fdchange, EMPTY); |
|
|
2411 | array_free (timer, EMPTY); |
|
|
2412 | #if EV_PERIODIC_ENABLE |
|
|
2413 | array_free (periodic, EMPTY); |
|
|
2414 | #endif |
|
|
2415 | #if EV_FORK_ENABLE |
|
|
2416 | array_free (fork, EMPTY); |
|
|
2417 | #endif |
|
|
2418 | #if EV_CLEANUP_ENABLE |
|
|
2419 | array_free (cleanup, EMPTY); |
|
|
2420 | #endif |
|
|
2421 | array_free (prepare, EMPTY); |
|
|
2422 | array_free (check, EMPTY); |
|
|
2423 | #if EV_ASYNC_ENABLE |
|
|
2424 | array_free (async, EMPTY); |
|
|
2425 | #endif |
|
|
2426 | |
|
|
2427 | backend = 0; |
|
|
2428 | |
|
|
2429 | #if EV_MULTIPLICITY |
|
|
2430 | if (ev_is_default_loop (EV_A)) |
|
|
2431 | #endif |
|
|
2432 | ev_default_loop_ptr = 0; |
|
|
2433 | #if EV_MULTIPLICITY |
|
|
2434 | else |
|
|
2435 | ev_free (EV_A); |
|
|
2436 | #endif |
|
|
2437 | } |
|
|
2438 | |
|
|
2439 | #if EV_USE_INOTIFY |
|
|
2440 | inline_size void infy_fork (EV_P); |
|
|
2441 | #endif |
|
|
2442 | |
|
|
2443 | inline_size void |
|
|
2444 | loop_fork (EV_P) |
|
|
2445 | { |
|
|
2446 | #if EV_USE_PORT |
|
|
2447 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
|
|
2448 | #endif |
|
|
2449 | #if EV_USE_KQUEUE |
|
|
2450 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
|
|
2451 | #endif |
|
|
2452 | #if EV_USE_EPOLL |
|
|
2453 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
|
|
2454 | #endif |
|
|
2455 | #if EV_USE_INOTIFY |
|
|
2456 | infy_fork (EV_A); |
|
|
2457 | #endif |
|
|
2458 | |
|
|
2459 | if (ev_is_active (&pipe_w)) |
|
|
2460 | { |
|
|
2461 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
|
|
2462 | |
|
|
2463 | ev_ref (EV_A); |
|
|
2464 | ev_io_stop (EV_A_ &pipe_w); |
|
|
2465 | |
|
|
2466 | #if EV_USE_EVENTFD |
|
|
2467 | if (evfd >= 0) |
|
|
2468 | close (evfd); |
|
|
2469 | #endif |
|
|
2470 | |
|
|
2471 | if (evpipe [0] >= 0) |
|
|
2472 | { |
|
|
2473 | EV_WIN32_CLOSE_FD (evpipe [0]); |
|
|
2474 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
2475 | } |
|
|
2476 | |
|
|
2477 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
2478 | evpipe_init (EV_A); |
|
|
2479 | /* now iterate over everything, in case we missed something */ |
|
|
2480 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
2481 | #endif |
|
|
2482 | } |
|
|
2483 | |
|
|
2484 | postfork = 0; |
|
|
2485 | } |
|
|
2486 | |
|
|
2487 | #if EV_MULTIPLICITY |
|
|
2488 | |
|
|
2489 | struct ev_loop * ecb_cold |
|
|
2490 | ev_loop_new (unsigned int flags) |
|
|
2491 | { |
|
|
2492 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
|
|
2493 | |
|
|
2494 | memset (EV_A, 0, sizeof (struct ev_loop)); |
|
|
2495 | loop_init (EV_A_ flags); |
|
|
2496 | |
|
|
2497 | if (ev_backend (EV_A)) |
|
|
2498 | return EV_A; |
|
|
2499 | |
|
|
2500 | ev_free (EV_A); |
|
|
2501 | return 0; |
|
|
2502 | } |
|
|
2503 | |
|
|
2504 | #endif /* multiplicity */ |
|
|
2505 | |
|
|
2506 | #if EV_VERIFY |
|
|
2507 | static void noinline ecb_cold |
|
|
2508 | verify_watcher (EV_P_ W w) |
|
|
2509 | { |
|
|
2510 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
2511 | |
|
|
2512 | if (w->pending) |
|
|
2513 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
2514 | } |
|
|
2515 | |
|
|
2516 | static void noinline ecb_cold |
|
|
2517 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
2518 | { |
|
|
2519 | int i; |
|
|
2520 | |
|
|
2521 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
2522 | { |
|
|
2523 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
2524 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
2525 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
2526 | |
|
|
2527 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
2528 | } |
|
|
2529 | } |
|
|
2530 | |
|
|
2531 | static void noinline ecb_cold |
|
|
2532 | array_verify (EV_P_ W *ws, int cnt) |
|
|
2533 | { |
|
|
2534 | while (cnt--) |
|
|
2535 | { |
|
|
2536 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
2537 | verify_watcher (EV_A_ ws [cnt]); |
|
|
2538 | } |
|
|
2539 | } |
|
|
2540 | #endif |
|
|
2541 | |
|
|
2542 | #if EV_FEATURE_API |
|
|
2543 | void ecb_cold |
|
|
2544 | ev_verify (EV_P) |
|
|
2545 | { |
|
|
2546 | #if EV_VERIFY |
|
|
2547 | int i; |
|
|
2548 | WL w; |
|
|
2549 | |
|
|
2550 | assert (activecnt >= -1); |
|
|
2551 | |
|
|
2552 | assert (fdchangemax >= fdchangecnt); |
|
|
2553 | for (i = 0; i < fdchangecnt; ++i) |
|
|
2554 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
2555 | |
|
|
2556 | assert (anfdmax >= 0); |
|
|
2557 | for (i = 0; i < anfdmax; ++i) |
|
|
2558 | for (w = anfds [i].head; w; w = w->next) |
717 | { |
2559 | { |
718 | struct timespec ts; |
2560 | verify_watcher (EV_A_ (W)w); |
719 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
2561 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
720 | have_monotonic = 1; |
2562 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
721 | } |
2563 | } |
722 | #endif |
|
|
723 | |
2564 | |
724 | rt_now = ev_time (); |
2565 | assert (timermax >= timercnt); |
725 | mn_now = get_clock (); |
2566 | verify_heap (EV_A_ timers, timercnt); |
726 | now_floor = mn_now; |
|
|
727 | rtmn_diff = rt_now - mn_now; |
|
|
728 | |
2567 | |
729 | if (methods == EVMETHOD_AUTO) |
2568 | #if EV_PERIODIC_ENABLE |
730 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
2569 | assert (periodicmax >= periodiccnt); |
731 | methods = atoi (getenv ("LIBEV_METHODS")); |
2570 | verify_heap (EV_A_ periodics, periodiccnt); |
732 | else |
|
|
733 | methods = EVMETHOD_ANY; |
|
|
734 | |
|
|
735 | method = 0; |
|
|
736 | #if EV_USE_WIN32 |
|
|
737 | if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods); |
|
|
738 | #endif |
|
|
739 | #if EV_USE_KQUEUE |
|
|
740 | if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); |
|
|
741 | #endif |
|
|
742 | #if EV_USE_EPOLL |
|
|
743 | if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); |
|
|
744 | #endif |
|
|
745 | #if EV_USE_POLL |
|
|
746 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
|
|
747 | #endif |
|
|
748 | #if EV_USE_SELECT |
|
|
749 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
|
|
750 | #endif |
|
|
751 | |
|
|
752 | ev_watcher_init (&sigev, sigcb); |
|
|
753 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
754 | } |
|
|
755 | } |
|
|
756 | |
|
|
757 | void |
|
|
758 | loop_destroy (EV_P) |
|
|
759 | { |
|
|
760 | int i; |
|
|
761 | |
|
|
762 | #if EV_USE_WIN32 |
|
|
763 | if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A); |
|
|
764 | #endif |
|
|
765 | #if EV_USE_KQUEUE |
|
|
766 | if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); |
|
|
767 | #endif |
|
|
768 | #if EV_USE_EPOLL |
|
|
769 | if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); |
|
|
770 | #endif |
|
|
771 | #if EV_USE_POLL |
|
|
772 | if (method == EVMETHOD_POLL ) poll_destroy (EV_A); |
|
|
773 | #endif |
|
|
774 | #if EV_USE_SELECT |
|
|
775 | if (method == EVMETHOD_SELECT) select_destroy (EV_A); |
|
|
776 | #endif |
2571 | #endif |
777 | |
2572 | |
778 | for (i = NUMPRI; i--; ) |
2573 | for (i = NUMPRI; i--; ) |
779 | array_free (pending, [i]); |
2574 | { |
|
|
2575 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
2576 | #if EV_IDLE_ENABLE |
|
|
2577 | assert (idleall >= 0); |
|
|
2578 | assert (idlemax [i] >= idlecnt [i]); |
|
|
2579 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
2580 | #endif |
|
|
2581 | } |
780 | |
2582 | |
781 | /* have to use the microsoft-never-gets-it-right macro */ |
2583 | #if EV_FORK_ENABLE |
782 | array_free_microshit (fdchange); |
2584 | assert (forkmax >= forkcnt); |
783 | array_free_microshit (timer); |
2585 | array_verify (EV_A_ (W *)forks, forkcnt); |
784 | array_free_microshit (periodic); |
2586 | #endif |
785 | array_free_microshit (idle); |
|
|
786 | array_free_microshit (prepare); |
|
|
787 | array_free_microshit (check); |
|
|
788 | |
2587 | |
789 | method = 0; |
2588 | #if EV_CLEANUP_ENABLE |
790 | } |
2589 | assert (cleanupmax >= cleanupcnt); |
|
|
2590 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
2591 | #endif |
791 | |
2592 | |
792 | static void |
2593 | #if EV_ASYNC_ENABLE |
793 | loop_fork (EV_P) |
2594 | assert (asyncmax >= asynccnt); |
794 | { |
2595 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
795 | #if EV_USE_EPOLL |
2596 | #endif |
796 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
2597 | |
|
|
2598 | #if EV_PREPARE_ENABLE |
|
|
2599 | assert (preparemax >= preparecnt); |
|
|
2600 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
2601 | #endif |
|
|
2602 | |
|
|
2603 | #if EV_CHECK_ENABLE |
|
|
2604 | assert (checkmax >= checkcnt); |
|
|
2605 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
2606 | #endif |
|
|
2607 | |
|
|
2608 | # if 0 |
|
|
2609 | #if EV_CHILD_ENABLE |
|
|
2610 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
2611 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
2612 | #endif |
797 | #endif |
2613 | # endif |
798 | #if EV_USE_KQUEUE |
|
|
799 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
|
|
800 | #endif |
2614 | #endif |
801 | |
|
|
802 | if (ev_is_active (&sigev)) |
|
|
803 | { |
|
|
804 | /* default loop */ |
|
|
805 | |
|
|
806 | ev_ref (EV_A); |
|
|
807 | ev_io_stop (EV_A_ &sigev); |
|
|
808 | close (sigpipe [0]); |
|
|
809 | close (sigpipe [1]); |
|
|
810 | |
|
|
811 | while (pipe (sigpipe)) |
|
|
812 | syserr ("(libev) error creating pipe"); |
|
|
813 | |
|
|
814 | siginit (EV_A); |
|
|
815 | } |
|
|
816 | |
|
|
817 | postfork = 0; |
|
|
818 | } |
2615 | } |
|
|
2616 | #endif |
819 | |
2617 | |
820 | #if EV_MULTIPLICITY |
2618 | #if EV_MULTIPLICITY |
821 | struct ev_loop * |
2619 | struct ev_loop * ecb_cold |
822 | ev_loop_new (int methods) |
|
|
823 | { |
|
|
824 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
|
|
825 | |
|
|
826 | memset (loop, 0, sizeof (struct ev_loop)); |
|
|
827 | |
|
|
828 | loop_init (EV_A_ methods); |
|
|
829 | |
|
|
830 | if (ev_method (EV_A)) |
|
|
831 | return loop; |
|
|
832 | |
|
|
833 | return 0; |
|
|
834 | } |
|
|
835 | |
|
|
836 | void |
|
|
837 | ev_loop_destroy (EV_P) |
|
|
838 | { |
|
|
839 | loop_destroy (EV_A); |
|
|
840 | ev_free (loop); |
|
|
841 | } |
|
|
842 | |
|
|
843 | void |
|
|
844 | ev_loop_fork (EV_P) |
|
|
845 | { |
|
|
846 | postfork = 1; |
|
|
847 | } |
|
|
848 | |
|
|
849 | #endif |
|
|
850 | |
|
|
851 | #if EV_MULTIPLICITY |
|
|
852 | struct ev_loop * |
|
|
853 | #else |
2620 | #else |
854 | int |
2621 | int |
855 | #endif |
2622 | #endif |
856 | ev_default_loop (int methods) |
2623 | ev_default_loop (unsigned int flags) |
857 | { |
2624 | { |
858 | if (sigpipe [0] == sigpipe [1]) |
|
|
859 | if (pipe (sigpipe)) |
|
|
860 | return 0; |
|
|
861 | |
|
|
862 | if (!default_loop) |
2625 | if (!ev_default_loop_ptr) |
863 | { |
2626 | { |
864 | #if EV_MULTIPLICITY |
2627 | #if EV_MULTIPLICITY |
865 | struct ev_loop *loop = default_loop = &default_loop_struct; |
2628 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
866 | #else |
2629 | #else |
867 | default_loop = 1; |
2630 | ev_default_loop_ptr = 1; |
868 | #endif |
2631 | #endif |
869 | |
2632 | |
870 | loop_init (EV_A_ methods); |
2633 | loop_init (EV_A_ flags); |
871 | |
2634 | |
872 | if (ev_method (EV_A)) |
2635 | if (ev_backend (EV_A)) |
873 | { |
2636 | { |
874 | siginit (EV_A); |
2637 | #if EV_CHILD_ENABLE |
875 | |
|
|
876 | #ifndef WIN32 |
|
|
877 | ev_signal_init (&childev, childcb, SIGCHLD); |
2638 | ev_signal_init (&childev, childcb, SIGCHLD); |
878 | ev_set_priority (&childev, EV_MAXPRI); |
2639 | ev_set_priority (&childev, EV_MAXPRI); |
879 | ev_signal_start (EV_A_ &childev); |
2640 | ev_signal_start (EV_A_ &childev); |
880 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
2641 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
881 | #endif |
2642 | #endif |
882 | } |
2643 | } |
883 | else |
2644 | else |
884 | default_loop = 0; |
2645 | ev_default_loop_ptr = 0; |
885 | } |
2646 | } |
886 | |
2647 | |
887 | return default_loop; |
2648 | return ev_default_loop_ptr; |
888 | } |
2649 | } |
889 | |
2650 | |
890 | void |
2651 | void |
891 | ev_default_destroy (void) |
2652 | ev_loop_fork (EV_P) |
892 | { |
2653 | { |
893 | #if EV_MULTIPLICITY |
2654 | postfork = 1; /* must be in line with ev_default_fork */ |
894 | struct ev_loop *loop = default_loop; |
|
|
895 | #endif |
|
|
896 | |
|
|
897 | #ifndef WIN32 |
|
|
898 | ev_ref (EV_A); /* child watcher */ |
|
|
899 | ev_signal_stop (EV_A_ &childev); |
|
|
900 | #endif |
|
|
901 | |
|
|
902 | ev_ref (EV_A); /* signal watcher */ |
|
|
903 | ev_io_stop (EV_A_ &sigev); |
|
|
904 | |
|
|
905 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
906 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
907 | |
|
|
908 | loop_destroy (EV_A); |
|
|
909 | } |
2655 | } |
|
|
2656 | |
|
|
2657 | /*****************************************************************************/ |
910 | |
2658 | |
911 | void |
2659 | void |
912 | ev_default_fork (void) |
2660 | ev_invoke (EV_P_ void *w, int revents) |
913 | { |
2661 | { |
914 | #if EV_MULTIPLICITY |
2662 | EV_CB_INVOKE ((W)w, revents); |
915 | struct ev_loop *loop = default_loop; |
|
|
916 | #endif |
|
|
917 | |
|
|
918 | if (method) |
|
|
919 | postfork = 1; |
|
|
920 | } |
2663 | } |
921 | |
2664 | |
922 | /*****************************************************************************/ |
2665 | unsigned int |
923 | |
2666 | ev_pending_count (EV_P) |
924 | static int |
|
|
925 | any_pending (EV_P) |
|
|
926 | { |
2667 | { |
927 | int pri; |
2668 | int pri; |
|
|
2669 | unsigned int count = 0; |
928 | |
2670 | |
929 | for (pri = NUMPRI; pri--; ) |
2671 | for (pri = NUMPRI; pri--; ) |
930 | if (pendingcnt [pri]) |
2672 | count += pendingcnt [pri]; |
931 | return 1; |
|
|
932 | |
2673 | |
933 | return 0; |
2674 | return count; |
934 | } |
2675 | } |
935 | |
2676 | |
936 | static void |
2677 | void noinline |
937 | call_pending (EV_P) |
2678 | ev_invoke_pending (EV_P) |
938 | { |
2679 | { |
939 | int pri; |
2680 | int pri; |
940 | |
2681 | |
941 | for (pri = NUMPRI; pri--; ) |
2682 | for (pri = NUMPRI; pri--; ) |
942 | while (pendingcnt [pri]) |
2683 | while (pendingcnt [pri]) |
943 | { |
2684 | { |
944 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2685 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
945 | |
2686 | |
946 | if (p->w) |
|
|
947 | { |
|
|
948 | p->w->pending = 0; |
2687 | p->w->pending = 0; |
949 | p->w->cb (EV_A_ p->w, p->events); |
2688 | EV_CB_INVOKE (p->w, p->events); |
950 | } |
2689 | EV_FREQUENT_CHECK; |
951 | } |
2690 | } |
952 | } |
2691 | } |
953 | |
2692 | |
954 | static void |
2693 | #if EV_IDLE_ENABLE |
|
|
2694 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
2695 | /* only when higher priorities are idle" logic */ |
|
|
2696 | inline_size void |
|
|
2697 | idle_reify (EV_P) |
|
|
2698 | { |
|
|
2699 | if (expect_false (idleall)) |
|
|
2700 | { |
|
|
2701 | int pri; |
|
|
2702 | |
|
|
2703 | for (pri = NUMPRI; pri--; ) |
|
|
2704 | { |
|
|
2705 | if (pendingcnt [pri]) |
|
|
2706 | break; |
|
|
2707 | |
|
|
2708 | if (idlecnt [pri]) |
|
|
2709 | { |
|
|
2710 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
|
|
2711 | break; |
|
|
2712 | } |
|
|
2713 | } |
|
|
2714 | } |
|
|
2715 | } |
|
|
2716 | #endif |
|
|
2717 | |
|
|
2718 | /* make timers pending */ |
|
|
2719 | inline_size void |
955 | timers_reify (EV_P) |
2720 | timers_reify (EV_P) |
956 | { |
2721 | { |
|
|
2722 | EV_FREQUENT_CHECK; |
|
|
2723 | |
957 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
2724 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
958 | { |
2725 | { |
959 | struct ev_timer *w = timers [0]; |
2726 | do |
960 | |
|
|
961 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
|
|
962 | |
|
|
963 | /* first reschedule or stop timer */ |
|
|
964 | if (w->repeat) |
|
|
965 | { |
2727 | { |
|
|
2728 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
2729 | |
|
|
2730 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
2731 | |
|
|
2732 | /* first reschedule or stop timer */ |
|
|
2733 | if (w->repeat) |
|
|
2734 | { |
|
|
2735 | ev_at (w) += w->repeat; |
|
|
2736 | if (ev_at (w) < mn_now) |
|
|
2737 | ev_at (w) = mn_now; |
|
|
2738 | |
966 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
2739 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
967 | ((WT)w)->at = mn_now + w->repeat; |
2740 | |
|
|
2741 | ANHE_at_cache (timers [HEAP0]); |
968 | downheap ((WT *)timers, timercnt, 0); |
2742 | downheap (timers, timercnt, HEAP0); |
|
|
2743 | } |
|
|
2744 | else |
|
|
2745 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2746 | |
|
|
2747 | EV_FREQUENT_CHECK; |
|
|
2748 | feed_reverse (EV_A_ (W)w); |
969 | } |
2749 | } |
970 | else |
2750 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
971 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
972 | |
2751 | |
973 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
2752 | feed_reverse_done (EV_A_ EV_TIMER); |
|
|
2753 | } |
|
|
2754 | } |
|
|
2755 | |
|
|
2756 | #if EV_PERIODIC_ENABLE |
|
|
2757 | |
|
|
2758 | static void noinline |
|
|
2759 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
2760 | { |
|
|
2761 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
|
|
2762 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
|
|
2763 | |
|
|
2764 | /* the above almost always errs on the low side */ |
|
|
2765 | while (at <= ev_rt_now) |
974 | } |
2766 | { |
975 | } |
2767 | ev_tstamp nat = at + w->interval; |
976 | |
2768 | |
977 | static void |
2769 | /* when resolution fails us, we use ev_rt_now */ |
|
|
2770 | if (expect_false (nat == at)) |
|
|
2771 | { |
|
|
2772 | at = ev_rt_now; |
|
|
2773 | break; |
|
|
2774 | } |
|
|
2775 | |
|
|
2776 | at = nat; |
|
|
2777 | } |
|
|
2778 | |
|
|
2779 | ev_at (w) = at; |
|
|
2780 | } |
|
|
2781 | |
|
|
2782 | /* make periodics pending */ |
|
|
2783 | inline_size void |
978 | periodics_reify (EV_P) |
2784 | periodics_reify (EV_P) |
979 | { |
2785 | { |
|
|
2786 | EV_FREQUENT_CHECK; |
|
|
2787 | |
980 | while (periodiccnt && ((WT)periodics [0])->at <= rt_now) |
2788 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
981 | { |
2789 | { |
982 | struct ev_periodic *w = periodics [0]; |
2790 | int feed_count = 0; |
983 | |
2791 | |
|
|
2792 | do |
|
|
2793 | { |
|
|
2794 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
2795 | |
984 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
2796 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
985 | |
2797 | |
986 | /* first reschedule or stop timer */ |
2798 | /* first reschedule or stop timer */ |
|
|
2799 | if (w->reschedule_cb) |
|
|
2800 | { |
|
|
2801 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2802 | |
|
|
2803 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
2804 | |
|
|
2805 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2806 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2807 | } |
|
|
2808 | else if (w->interval) |
|
|
2809 | { |
|
|
2810 | periodic_recalc (EV_A_ w); |
|
|
2811 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2812 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2813 | } |
|
|
2814 | else |
|
|
2815 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2816 | |
|
|
2817 | EV_FREQUENT_CHECK; |
|
|
2818 | feed_reverse (EV_A_ (W)w); |
|
|
2819 | } |
|
|
2820 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
|
|
2821 | |
|
|
2822 | feed_reverse_done (EV_A_ EV_PERIODIC); |
|
|
2823 | } |
|
|
2824 | } |
|
|
2825 | |
|
|
2826 | /* simply recalculate all periodics */ |
|
|
2827 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
|
|
2828 | static void noinline ecb_cold |
|
|
2829 | periodics_reschedule (EV_P) |
|
|
2830 | { |
|
|
2831 | int i; |
|
|
2832 | |
|
|
2833 | /* adjust periodics after time jump */ |
|
|
2834 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
|
|
2835 | { |
|
|
2836 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
|
|
2837 | |
987 | if (w->reschedule_cb) |
2838 | if (w->reschedule_cb) |
988 | { |
|
|
989 | ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, rt_now + 0.0001); |
2839 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
990 | |
|
|
991 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > rt_now)); |
|
|
992 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
993 | } |
|
|
994 | else if (w->interval) |
2840 | else if (w->interval) |
995 | { |
2841 | periodic_recalc (EV_A_ w); |
996 | ((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
|
|
997 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now)); |
|
|
998 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
999 | } |
|
|
1000 | else |
|
|
1001 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1002 | |
2842 | |
1003 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
2843 | ANHE_at_cache (periodics [i]); |
1004 | } |
2844 | } |
1005 | } |
|
|
1006 | |
2845 | |
1007 | static void |
2846 | reheap (periodics, periodiccnt); |
1008 | periodics_reschedule (EV_P) |
2847 | } |
|
|
2848 | #endif |
|
|
2849 | |
|
|
2850 | /* adjust all timers by a given offset */ |
|
|
2851 | static void noinline ecb_cold |
|
|
2852 | timers_reschedule (EV_P_ ev_tstamp adjust) |
1009 | { |
2853 | { |
1010 | int i; |
2854 | int i; |
1011 | |
2855 | |
1012 | /* adjust periodics after time jump */ |
|
|
1013 | for (i = 0; i < periodiccnt; ++i) |
2856 | for (i = 0; i < timercnt; ++i) |
1014 | { |
|
|
1015 | struct ev_periodic *w = periodics [i]; |
|
|
1016 | |
|
|
1017 | if (w->reschedule_cb) |
|
|
1018 | ((WT)w)->at = w->reschedule_cb (w, rt_now); |
|
|
1019 | else if (w->interval) |
|
|
1020 | ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
|
|
1021 | } |
2857 | { |
1022 | |
2858 | ANHE *he = timers + i + HEAP0; |
1023 | /* now rebuild the heap */ |
2859 | ANHE_w (*he)->at += adjust; |
1024 | for (i = periodiccnt >> 1; i--; ) |
2860 | ANHE_at_cache (*he); |
1025 | downheap ((WT *)periodics, periodiccnt, i); |
|
|
1026 | } |
|
|
1027 | |
|
|
1028 | inline int |
|
|
1029 | time_update_monotonic (EV_P) |
|
|
1030 | { |
|
|
1031 | mn_now = get_clock (); |
|
|
1032 | |
|
|
1033 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
|
|
1034 | { |
2861 | } |
1035 | rt_now = rtmn_diff + mn_now; |
|
|
1036 | return 0; |
|
|
1037 | } |
|
|
1038 | else |
|
|
1039 | { |
|
|
1040 | now_floor = mn_now; |
|
|
1041 | rt_now = ev_time (); |
|
|
1042 | return 1; |
|
|
1043 | } |
|
|
1044 | } |
2862 | } |
1045 | |
2863 | |
1046 | static void |
2864 | /* fetch new monotonic and realtime times from the kernel */ |
1047 | time_update (EV_P) |
2865 | /* also detect if there was a timejump, and act accordingly */ |
|
|
2866 | inline_speed void |
|
|
2867 | time_update (EV_P_ ev_tstamp max_block) |
1048 | { |
2868 | { |
1049 | int i; |
|
|
1050 | |
|
|
1051 | #if EV_USE_MONOTONIC |
2869 | #if EV_USE_MONOTONIC |
1052 | if (expect_true (have_monotonic)) |
2870 | if (expect_true (have_monotonic)) |
1053 | { |
2871 | { |
1054 | if (time_update_monotonic (EV_A)) |
2872 | int i; |
|
|
2873 | ev_tstamp odiff = rtmn_diff; |
|
|
2874 | |
|
|
2875 | mn_now = get_clock (); |
|
|
2876 | |
|
|
2877 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
2878 | /* interpolate in the meantime */ |
|
|
2879 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1055 | { |
2880 | { |
1056 | ev_tstamp odiff = rtmn_diff; |
2881 | ev_rt_now = rtmn_diff + mn_now; |
|
|
2882 | return; |
|
|
2883 | } |
1057 | |
2884 | |
|
|
2885 | now_floor = mn_now; |
|
|
2886 | ev_rt_now = ev_time (); |
|
|
2887 | |
1058 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
2888 | /* loop a few times, before making important decisions. |
|
|
2889 | * on the choice of "4": one iteration isn't enough, |
|
|
2890 | * in case we get preempted during the calls to |
|
|
2891 | * ev_time and get_clock. a second call is almost guaranteed |
|
|
2892 | * to succeed in that case, though. and looping a few more times |
|
|
2893 | * doesn't hurt either as we only do this on time-jumps or |
|
|
2894 | * in the unlikely event of having been preempted here. |
|
|
2895 | */ |
|
|
2896 | for (i = 4; --i; ) |
1059 | { |
2897 | { |
|
|
2898 | ev_tstamp diff; |
1060 | rtmn_diff = rt_now - mn_now; |
2899 | rtmn_diff = ev_rt_now - mn_now; |
1061 | |
2900 | |
1062 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
2901 | diff = odiff - rtmn_diff; |
|
|
2902 | |
|
|
2903 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
1063 | return; /* all is well */ |
2904 | return; /* all is well */ |
1064 | |
2905 | |
1065 | rt_now = ev_time (); |
2906 | ev_rt_now = ev_time (); |
1066 | mn_now = get_clock (); |
2907 | mn_now = get_clock (); |
1067 | now_floor = mn_now; |
2908 | now_floor = mn_now; |
1068 | } |
2909 | } |
1069 | |
2910 | |
|
|
2911 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2912 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
2913 | # if EV_PERIODIC_ENABLE |
|
|
2914 | periodics_reschedule (EV_A); |
|
|
2915 | # endif |
|
|
2916 | } |
|
|
2917 | else |
|
|
2918 | #endif |
|
|
2919 | { |
|
|
2920 | ev_rt_now = ev_time (); |
|
|
2921 | |
|
|
2922 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
|
|
2923 | { |
|
|
2924 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2925 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
|
|
2926 | #if EV_PERIODIC_ENABLE |
1070 | periodics_reschedule (EV_A); |
2927 | periodics_reschedule (EV_A); |
1071 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
2928 | #endif |
1072 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1073 | } |
2929 | } |
1074 | } |
|
|
1075 | else |
|
|
1076 | #endif |
|
|
1077 | { |
|
|
1078 | rt_now = ev_time (); |
|
|
1079 | |
2930 | |
1080 | if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
|
|
1081 | { |
|
|
1082 | periodics_reschedule (EV_A); |
|
|
1083 | |
|
|
1084 | /* adjust timers. this is easy, as the offset is the same for all */ |
|
|
1085 | for (i = 0; i < timercnt; ++i) |
|
|
1086 | ((WT)timers [i])->at += rt_now - mn_now; |
|
|
1087 | } |
|
|
1088 | |
|
|
1089 | mn_now = rt_now; |
2931 | mn_now = ev_rt_now; |
1090 | } |
2932 | } |
1091 | } |
2933 | } |
1092 | |
2934 | |
1093 | void |
2935 | void |
1094 | ev_ref (EV_P) |
|
|
1095 | { |
|
|
1096 | ++activecnt; |
|
|
1097 | } |
|
|
1098 | |
|
|
1099 | void |
|
|
1100 | ev_unref (EV_P) |
|
|
1101 | { |
|
|
1102 | --activecnt; |
|
|
1103 | } |
|
|
1104 | |
|
|
1105 | static int loop_done; |
|
|
1106 | |
|
|
1107 | void |
|
|
1108 | ev_loop (EV_P_ int flags) |
2936 | ev_run (EV_P_ int flags) |
1109 | { |
2937 | { |
1110 | double block; |
2938 | #if EV_FEATURE_API |
1111 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
2939 | ++loop_depth; |
|
|
2940 | #endif |
|
|
2941 | |
|
|
2942 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
|
|
2943 | |
|
|
2944 | loop_done = EVBREAK_CANCEL; |
|
|
2945 | |
|
|
2946 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1112 | |
2947 | |
1113 | do |
2948 | do |
1114 | { |
2949 | { |
|
|
2950 | #if EV_VERIFY >= 2 |
|
|
2951 | ev_verify (EV_A); |
|
|
2952 | #endif |
|
|
2953 | |
|
|
2954 | #ifndef _WIN32 |
|
|
2955 | if (expect_false (curpid)) /* penalise the forking check even more */ |
|
|
2956 | if (expect_false (getpid () != curpid)) |
|
|
2957 | { |
|
|
2958 | curpid = getpid (); |
|
|
2959 | postfork = 1; |
|
|
2960 | } |
|
|
2961 | #endif |
|
|
2962 | |
|
|
2963 | #if EV_FORK_ENABLE |
|
|
2964 | /* we might have forked, so queue fork handlers */ |
|
|
2965 | if (expect_false (postfork)) |
|
|
2966 | if (forkcnt) |
|
|
2967 | { |
|
|
2968 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
|
|
2969 | EV_INVOKE_PENDING; |
|
|
2970 | } |
|
|
2971 | #endif |
|
|
2972 | |
|
|
2973 | #if EV_PREPARE_ENABLE |
1115 | /* queue check watchers (and execute them) */ |
2974 | /* queue prepare watchers (and execute them) */ |
1116 | if (expect_false (preparecnt)) |
2975 | if (expect_false (preparecnt)) |
1117 | { |
2976 | { |
1118 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2977 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1119 | call_pending (EV_A); |
2978 | EV_INVOKE_PENDING; |
1120 | } |
2979 | } |
|
|
2980 | #endif |
|
|
2981 | |
|
|
2982 | if (expect_false (loop_done)) |
|
|
2983 | break; |
1121 | |
2984 | |
1122 | /* we might have forked, so reify kernel state if necessary */ |
2985 | /* we might have forked, so reify kernel state if necessary */ |
1123 | if (expect_false (postfork)) |
2986 | if (expect_false (postfork)) |
1124 | loop_fork (EV_A); |
2987 | loop_fork (EV_A); |
1125 | |
2988 | |
1126 | /* update fd-related kernel structures */ |
2989 | /* update fd-related kernel structures */ |
1127 | fd_reify (EV_A); |
2990 | fd_reify (EV_A); |
1128 | |
2991 | |
1129 | /* calculate blocking time */ |
2992 | /* calculate blocking time */ |
|
|
2993 | { |
|
|
2994 | ev_tstamp waittime = 0.; |
|
|
2995 | ev_tstamp sleeptime = 0.; |
1130 | |
2996 | |
1131 | /* we only need this for !monotonic clock or timers, but as we basically |
2997 | /* remember old timestamp for io_blocktime calculation */ |
1132 | always have timers, we just calculate it always */ |
2998 | ev_tstamp prev_mn_now = mn_now; |
1133 | #if EV_USE_MONOTONIC |
2999 | |
1134 | if (expect_true (have_monotonic)) |
3000 | /* update time to cancel out callback processing overhead */ |
1135 | time_update_monotonic (EV_A); |
3001 | time_update (EV_A_ 1e100); |
1136 | else |
3002 | |
1137 | #endif |
3003 | /* from now on, we want a pipe-wake-up */ |
|
|
3004 | pipe_write_wanted = 1; |
|
|
3005 | |
|
|
3006 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
3007 | |
|
|
3008 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
1138 | { |
3009 | { |
1139 | rt_now = ev_time (); |
|
|
1140 | mn_now = rt_now; |
|
|
1141 | } |
|
|
1142 | |
|
|
1143 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
|
|
1144 | block = 0.; |
|
|
1145 | else |
|
|
1146 | { |
|
|
1147 | block = MAX_BLOCKTIME; |
3010 | waittime = MAX_BLOCKTIME; |
1148 | |
3011 | |
1149 | if (timercnt) |
3012 | if (timercnt) |
1150 | { |
3013 | { |
1151 | ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; |
3014 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
1152 | if (block > to) block = to; |
3015 | if (waittime > to) waittime = to; |
1153 | } |
3016 | } |
1154 | |
3017 | |
|
|
3018 | #if EV_PERIODIC_ENABLE |
1155 | if (periodiccnt) |
3019 | if (periodiccnt) |
1156 | { |
3020 | { |
1157 | ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge; |
3021 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now; |
1158 | if (block > to) block = to; |
3022 | if (waittime > to) waittime = to; |
1159 | } |
3023 | } |
|
|
3024 | #endif |
1160 | |
3025 | |
1161 | if (block < 0.) block = 0.; |
3026 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
|
|
3027 | if (expect_false (waittime < timeout_blocktime)) |
|
|
3028 | waittime = timeout_blocktime; |
|
|
3029 | |
|
|
3030 | /* at this point, we NEED to wait, so we have to ensure */ |
|
|
3031 | /* to pass a minimum nonzero value to the backend */ |
|
|
3032 | if (expect_false (waittime < backend_mintime)) |
|
|
3033 | waittime = backend_mintime; |
|
|
3034 | |
|
|
3035 | /* extra check because io_blocktime is commonly 0 */ |
|
|
3036 | if (expect_false (io_blocktime)) |
|
|
3037 | { |
|
|
3038 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
3039 | |
|
|
3040 | if (sleeptime > waittime - backend_mintime) |
|
|
3041 | sleeptime = waittime - backend_mintime; |
|
|
3042 | |
|
|
3043 | if (expect_true (sleeptime > 0.)) |
|
|
3044 | { |
|
|
3045 | ev_sleep (sleeptime); |
|
|
3046 | waittime -= sleeptime; |
|
|
3047 | } |
|
|
3048 | } |
1162 | } |
3049 | } |
1163 | |
3050 | |
1164 | method_poll (EV_A_ block); |
3051 | #if EV_FEATURE_API |
|
|
3052 | ++loop_count; |
|
|
3053 | #endif |
|
|
3054 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
|
|
3055 | backend_poll (EV_A_ waittime); |
|
|
3056 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
1165 | |
3057 | |
|
|
3058 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
|
|
3059 | |
|
|
3060 | if (pipe_write_skipped) |
|
|
3061 | { |
|
|
3062 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
3063 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
3064 | } |
|
|
3065 | |
|
|
3066 | |
1166 | /* update rt_now, do magic */ |
3067 | /* update ev_rt_now, do magic */ |
1167 | time_update (EV_A); |
3068 | time_update (EV_A_ waittime + sleeptime); |
|
|
3069 | } |
1168 | |
3070 | |
1169 | /* queue pending timers and reschedule them */ |
3071 | /* queue pending timers and reschedule them */ |
1170 | timers_reify (EV_A); /* relative timers called last */ |
3072 | timers_reify (EV_A); /* relative timers called last */ |
|
|
3073 | #if EV_PERIODIC_ENABLE |
1171 | periodics_reify (EV_A); /* absolute timers called first */ |
3074 | periodics_reify (EV_A); /* absolute timers called first */ |
|
|
3075 | #endif |
1172 | |
3076 | |
|
|
3077 | #if EV_IDLE_ENABLE |
1173 | /* queue idle watchers unless io or timers are pending */ |
3078 | /* queue idle watchers unless other events are pending */ |
1174 | if (idlecnt && !any_pending (EV_A)) |
3079 | idle_reify (EV_A); |
1175 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
3080 | #endif |
1176 | |
3081 | |
|
|
3082 | #if EV_CHECK_ENABLE |
1177 | /* queue check watchers, to be executed first */ |
3083 | /* queue check watchers, to be executed first */ |
1178 | if (checkcnt) |
3084 | if (expect_false (checkcnt)) |
1179 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
3085 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
3086 | #endif |
1180 | |
3087 | |
1181 | call_pending (EV_A); |
3088 | EV_INVOKE_PENDING; |
1182 | } |
3089 | } |
1183 | while (activecnt && !loop_done); |
3090 | while (expect_true ( |
|
|
3091 | activecnt |
|
|
3092 | && !loop_done |
|
|
3093 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
|
|
3094 | )); |
1184 | |
3095 | |
1185 | if (loop_done != 2) |
3096 | if (loop_done == EVBREAK_ONE) |
1186 | loop_done = 0; |
3097 | loop_done = EVBREAK_CANCEL; |
|
|
3098 | |
|
|
3099 | #if EV_FEATURE_API |
|
|
3100 | --loop_depth; |
|
|
3101 | #endif |
1187 | } |
3102 | } |
1188 | |
3103 | |
1189 | void |
3104 | void |
1190 | ev_unloop (EV_P_ int how) |
3105 | ev_break (EV_P_ int how) |
1191 | { |
3106 | { |
1192 | loop_done = how; |
3107 | loop_done = how; |
1193 | } |
3108 | } |
1194 | |
3109 | |
|
|
3110 | void |
|
|
3111 | ev_ref (EV_P) |
|
|
3112 | { |
|
|
3113 | ++activecnt; |
|
|
3114 | } |
|
|
3115 | |
|
|
3116 | void |
|
|
3117 | ev_unref (EV_P) |
|
|
3118 | { |
|
|
3119 | --activecnt; |
|
|
3120 | } |
|
|
3121 | |
|
|
3122 | void |
|
|
3123 | ev_now_update (EV_P) |
|
|
3124 | { |
|
|
3125 | time_update (EV_A_ 1e100); |
|
|
3126 | } |
|
|
3127 | |
|
|
3128 | void |
|
|
3129 | ev_suspend (EV_P) |
|
|
3130 | { |
|
|
3131 | ev_now_update (EV_A); |
|
|
3132 | } |
|
|
3133 | |
|
|
3134 | void |
|
|
3135 | ev_resume (EV_P) |
|
|
3136 | { |
|
|
3137 | ev_tstamp mn_prev = mn_now; |
|
|
3138 | |
|
|
3139 | ev_now_update (EV_A); |
|
|
3140 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
3141 | #if EV_PERIODIC_ENABLE |
|
|
3142 | /* TODO: really do this? */ |
|
|
3143 | periodics_reschedule (EV_A); |
|
|
3144 | #endif |
|
|
3145 | } |
|
|
3146 | |
1195 | /*****************************************************************************/ |
3147 | /*****************************************************************************/ |
|
|
3148 | /* singly-linked list management, used when the expected list length is short */ |
1196 | |
3149 | |
1197 | inline void |
3150 | inline_size void |
1198 | wlist_add (WL *head, WL elem) |
3151 | wlist_add (WL *head, WL elem) |
1199 | { |
3152 | { |
1200 | elem->next = *head; |
3153 | elem->next = *head; |
1201 | *head = elem; |
3154 | *head = elem; |
1202 | } |
3155 | } |
1203 | |
3156 | |
1204 | inline void |
3157 | inline_size void |
1205 | wlist_del (WL *head, WL elem) |
3158 | wlist_del (WL *head, WL elem) |
1206 | { |
3159 | { |
1207 | while (*head) |
3160 | while (*head) |
1208 | { |
3161 | { |
1209 | if (*head == elem) |
3162 | if (expect_true (*head == elem)) |
1210 | { |
3163 | { |
1211 | *head = elem->next; |
3164 | *head = elem->next; |
1212 | return; |
3165 | break; |
1213 | } |
3166 | } |
1214 | |
3167 | |
1215 | head = &(*head)->next; |
3168 | head = &(*head)->next; |
1216 | } |
3169 | } |
1217 | } |
3170 | } |
1218 | |
3171 | |
|
|
3172 | /* internal, faster, version of ev_clear_pending */ |
1219 | inline void |
3173 | inline_speed void |
1220 | ev_clear_pending (EV_P_ W w) |
3174 | clear_pending (EV_P_ W w) |
1221 | { |
3175 | { |
1222 | if (w->pending) |
3176 | if (w->pending) |
1223 | { |
3177 | { |
1224 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
3178 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
1225 | w->pending = 0; |
3179 | w->pending = 0; |
1226 | } |
3180 | } |
1227 | } |
3181 | } |
1228 | |
3182 | |
|
|
3183 | int |
|
|
3184 | ev_clear_pending (EV_P_ void *w) |
|
|
3185 | { |
|
|
3186 | W w_ = (W)w; |
|
|
3187 | int pending = w_->pending; |
|
|
3188 | |
|
|
3189 | if (expect_true (pending)) |
|
|
3190 | { |
|
|
3191 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
3192 | p->w = (W)&pending_w; |
|
|
3193 | w_->pending = 0; |
|
|
3194 | return p->events; |
|
|
3195 | } |
|
|
3196 | else |
|
|
3197 | return 0; |
|
|
3198 | } |
|
|
3199 | |
1229 | inline void |
3200 | inline_size void |
|
|
3201 | pri_adjust (EV_P_ W w) |
|
|
3202 | { |
|
|
3203 | int pri = ev_priority (w); |
|
|
3204 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
|
|
3205 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
|
|
3206 | ev_set_priority (w, pri); |
|
|
3207 | } |
|
|
3208 | |
|
|
3209 | inline_speed void |
1230 | ev_start (EV_P_ W w, int active) |
3210 | ev_start (EV_P_ W w, int active) |
1231 | { |
3211 | { |
1232 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
3212 | pri_adjust (EV_A_ w); |
1233 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
1234 | |
|
|
1235 | w->active = active; |
3213 | w->active = active; |
1236 | ev_ref (EV_A); |
3214 | ev_ref (EV_A); |
1237 | } |
3215 | } |
1238 | |
3216 | |
1239 | inline void |
3217 | inline_size void |
1240 | ev_stop (EV_P_ W w) |
3218 | ev_stop (EV_P_ W w) |
1241 | { |
3219 | { |
1242 | ev_unref (EV_A); |
3220 | ev_unref (EV_A); |
1243 | w->active = 0; |
3221 | w->active = 0; |
1244 | } |
3222 | } |
1245 | |
3223 | |
1246 | /*****************************************************************************/ |
3224 | /*****************************************************************************/ |
1247 | |
3225 | |
1248 | void |
3226 | void noinline |
1249 | ev_io_start (EV_P_ struct ev_io *w) |
3227 | ev_io_start (EV_P_ ev_io *w) |
1250 | { |
3228 | { |
1251 | int fd = w->fd; |
3229 | int fd = w->fd; |
1252 | |
3230 | |
1253 | if (ev_is_active (w)) |
3231 | if (expect_false (ev_is_active (w))) |
1254 | return; |
3232 | return; |
1255 | |
3233 | |
1256 | assert (("ev_io_start called with negative fd", fd >= 0)); |
3234 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
3235 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
|
|
3236 | |
|
|
3237 | EV_FREQUENT_CHECK; |
1257 | |
3238 | |
1258 | ev_start (EV_A_ (W)w, 1); |
3239 | ev_start (EV_A_ (W)w, 1); |
1259 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
3240 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
1260 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
3241 | wlist_add (&anfds[fd].head, (WL)w); |
1261 | |
3242 | |
1262 | fd_change (EV_A_ fd); |
3243 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
1263 | } |
3244 | w->events &= ~EV__IOFDSET; |
1264 | |
3245 | |
1265 | void |
3246 | EV_FREQUENT_CHECK; |
|
|
3247 | } |
|
|
3248 | |
|
|
3249 | void noinline |
1266 | ev_io_stop (EV_P_ struct ev_io *w) |
3250 | ev_io_stop (EV_P_ ev_io *w) |
1267 | { |
3251 | { |
1268 | ev_clear_pending (EV_A_ (W)w); |
3252 | clear_pending (EV_A_ (W)w); |
1269 | if (!ev_is_active (w)) |
3253 | if (expect_false (!ev_is_active (w))) |
1270 | return; |
3254 | return; |
1271 | |
3255 | |
|
|
3256 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
3257 | |
|
|
3258 | EV_FREQUENT_CHECK; |
|
|
3259 | |
1272 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
3260 | wlist_del (&anfds[w->fd].head, (WL)w); |
1273 | ev_stop (EV_A_ (W)w); |
3261 | ev_stop (EV_A_ (W)w); |
1274 | |
3262 | |
1275 | fd_change (EV_A_ w->fd); |
3263 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
1276 | } |
|
|
1277 | |
3264 | |
1278 | void |
3265 | EV_FREQUENT_CHECK; |
|
|
3266 | } |
|
|
3267 | |
|
|
3268 | void noinline |
1279 | ev_timer_start (EV_P_ struct ev_timer *w) |
3269 | ev_timer_start (EV_P_ ev_timer *w) |
1280 | { |
3270 | { |
1281 | if (ev_is_active (w)) |
3271 | if (expect_false (ev_is_active (w))) |
1282 | return; |
3272 | return; |
1283 | |
3273 | |
1284 | ((WT)w)->at += mn_now; |
3274 | ev_at (w) += mn_now; |
1285 | |
3275 | |
1286 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
3276 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1287 | |
3277 | |
|
|
3278 | EV_FREQUENT_CHECK; |
|
|
3279 | |
|
|
3280 | ++timercnt; |
1288 | ev_start (EV_A_ (W)w, ++timercnt); |
3281 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1289 | array_needsize (struct ev_timer *, timers, timermax, timercnt, (void)); |
3282 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1290 | timers [timercnt - 1] = w; |
3283 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1291 | upheap ((WT *)timers, timercnt - 1); |
3284 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
3285 | upheap (timers, ev_active (w)); |
1292 | |
3286 | |
|
|
3287 | EV_FREQUENT_CHECK; |
|
|
3288 | |
1293 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
3289 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1294 | } |
3290 | } |
1295 | |
3291 | |
1296 | void |
3292 | void noinline |
1297 | ev_timer_stop (EV_P_ struct ev_timer *w) |
3293 | ev_timer_stop (EV_P_ ev_timer *w) |
1298 | { |
3294 | { |
1299 | ev_clear_pending (EV_A_ (W)w); |
3295 | clear_pending (EV_A_ (W)w); |
1300 | if (!ev_is_active (w)) |
3296 | if (expect_false (!ev_is_active (w))) |
1301 | return; |
3297 | return; |
1302 | |
3298 | |
|
|
3299 | EV_FREQUENT_CHECK; |
|
|
3300 | |
|
|
3301 | { |
|
|
3302 | int active = ev_active (w); |
|
|
3303 | |
1303 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
3304 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
1304 | |
3305 | |
1305 | if (((W)w)->active < timercnt--) |
3306 | --timercnt; |
|
|
3307 | |
|
|
3308 | if (expect_true (active < timercnt + HEAP0)) |
1306 | { |
3309 | { |
1307 | timers [((W)w)->active - 1] = timers [timercnt]; |
3310 | timers [active] = timers [timercnt + HEAP0]; |
1308 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
3311 | adjustheap (timers, timercnt, active); |
1309 | } |
3312 | } |
|
|
3313 | } |
1310 | |
3314 | |
1311 | ((WT)w)->at = w->repeat; |
3315 | ev_at (w) -= mn_now; |
1312 | |
3316 | |
1313 | ev_stop (EV_A_ (W)w); |
3317 | ev_stop (EV_A_ (W)w); |
1314 | } |
|
|
1315 | |
3318 | |
1316 | void |
3319 | EV_FREQUENT_CHECK; |
|
|
3320 | } |
|
|
3321 | |
|
|
3322 | void noinline |
1317 | ev_timer_again (EV_P_ struct ev_timer *w) |
3323 | ev_timer_again (EV_P_ ev_timer *w) |
1318 | { |
3324 | { |
|
|
3325 | EV_FREQUENT_CHECK; |
|
|
3326 | |
|
|
3327 | clear_pending (EV_A_ (W)w); |
|
|
3328 | |
1319 | if (ev_is_active (w)) |
3329 | if (ev_is_active (w)) |
1320 | { |
3330 | { |
1321 | if (w->repeat) |
3331 | if (w->repeat) |
1322 | { |
3332 | { |
1323 | ((WT)w)->at = mn_now + w->repeat; |
3333 | ev_at (w) = mn_now + w->repeat; |
1324 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
3334 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
3335 | adjustheap (timers, timercnt, ev_active (w)); |
1325 | } |
3336 | } |
1326 | else |
3337 | else |
1327 | ev_timer_stop (EV_A_ w); |
3338 | ev_timer_stop (EV_A_ w); |
1328 | } |
3339 | } |
1329 | else if (w->repeat) |
3340 | else if (w->repeat) |
|
|
3341 | { |
|
|
3342 | ev_at (w) = w->repeat; |
1330 | ev_timer_start (EV_A_ w); |
3343 | ev_timer_start (EV_A_ w); |
1331 | } |
3344 | } |
1332 | |
3345 | |
1333 | void |
3346 | EV_FREQUENT_CHECK; |
|
|
3347 | } |
|
|
3348 | |
|
|
3349 | ev_tstamp |
|
|
3350 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
3351 | { |
|
|
3352 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
|
|
3353 | } |
|
|
3354 | |
|
|
3355 | #if EV_PERIODIC_ENABLE |
|
|
3356 | void noinline |
1334 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
3357 | ev_periodic_start (EV_P_ ev_periodic *w) |
1335 | { |
3358 | { |
1336 | if (ev_is_active (w)) |
3359 | if (expect_false (ev_is_active (w))) |
1337 | return; |
3360 | return; |
1338 | |
3361 | |
1339 | if (w->reschedule_cb) |
3362 | if (w->reschedule_cb) |
1340 | ((WT)w)->at = w->reschedule_cb (w, rt_now); |
3363 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1341 | else if (w->interval) |
3364 | else if (w->interval) |
1342 | { |
3365 | { |
1343 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
3366 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1344 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
3367 | periodic_recalc (EV_A_ w); |
1345 | ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
|
|
1346 | } |
3368 | } |
|
|
3369 | else |
|
|
3370 | ev_at (w) = w->offset; |
1347 | |
3371 | |
|
|
3372 | EV_FREQUENT_CHECK; |
|
|
3373 | |
|
|
3374 | ++periodiccnt; |
1348 | ev_start (EV_A_ (W)w, ++periodiccnt); |
3375 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
1349 | array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void)); |
3376 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1350 | periodics [periodiccnt - 1] = w; |
3377 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1351 | upheap ((WT *)periodics, periodiccnt - 1); |
3378 | ANHE_at_cache (periodics [ev_active (w)]); |
|
|
3379 | upheap (periodics, ev_active (w)); |
1352 | |
3380 | |
|
|
3381 | EV_FREQUENT_CHECK; |
|
|
3382 | |
1353 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
3383 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1354 | } |
3384 | } |
1355 | |
3385 | |
1356 | void |
3386 | void noinline |
1357 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
3387 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1358 | { |
3388 | { |
1359 | ev_clear_pending (EV_A_ (W)w); |
3389 | clear_pending (EV_A_ (W)w); |
1360 | if (!ev_is_active (w)) |
3390 | if (expect_false (!ev_is_active (w))) |
1361 | return; |
3391 | return; |
1362 | |
3392 | |
|
|
3393 | EV_FREQUENT_CHECK; |
|
|
3394 | |
|
|
3395 | { |
|
|
3396 | int active = ev_active (w); |
|
|
3397 | |
1363 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
3398 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
1364 | |
3399 | |
1365 | if (((W)w)->active < periodiccnt--) |
3400 | --periodiccnt; |
|
|
3401 | |
|
|
3402 | if (expect_true (active < periodiccnt + HEAP0)) |
1366 | { |
3403 | { |
1367 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
3404 | periodics [active] = periodics [periodiccnt + HEAP0]; |
1368 | downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
3405 | adjustheap (periodics, periodiccnt, active); |
1369 | } |
3406 | } |
|
|
3407 | } |
1370 | |
3408 | |
1371 | ev_stop (EV_A_ (W)w); |
3409 | ev_stop (EV_A_ (W)w); |
1372 | } |
|
|
1373 | |
3410 | |
1374 | void |
3411 | EV_FREQUENT_CHECK; |
|
|
3412 | } |
|
|
3413 | |
|
|
3414 | void noinline |
1375 | ev_periodic_again (EV_P_ struct ev_periodic *w) |
3415 | ev_periodic_again (EV_P_ ev_periodic *w) |
1376 | { |
3416 | { |
|
|
3417 | /* TODO: use adjustheap and recalculation */ |
1377 | ev_periodic_stop (EV_A_ w); |
3418 | ev_periodic_stop (EV_A_ w); |
1378 | ev_periodic_start (EV_A_ w); |
3419 | ev_periodic_start (EV_A_ w); |
1379 | } |
3420 | } |
1380 | |
3421 | #endif |
1381 | void |
|
|
1382 | ev_idle_start (EV_P_ struct ev_idle *w) |
|
|
1383 | { |
|
|
1384 | if (ev_is_active (w)) |
|
|
1385 | return; |
|
|
1386 | |
|
|
1387 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1388 | array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void)); |
|
|
1389 | idles [idlecnt - 1] = w; |
|
|
1390 | } |
|
|
1391 | |
|
|
1392 | void |
|
|
1393 | ev_idle_stop (EV_P_ struct ev_idle *w) |
|
|
1394 | { |
|
|
1395 | ev_clear_pending (EV_A_ (W)w); |
|
|
1396 | if (ev_is_active (w)) |
|
|
1397 | return; |
|
|
1398 | |
|
|
1399 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
|
|
1400 | ev_stop (EV_A_ (W)w); |
|
|
1401 | } |
|
|
1402 | |
|
|
1403 | void |
|
|
1404 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
|
|
1405 | { |
|
|
1406 | if (ev_is_active (w)) |
|
|
1407 | return; |
|
|
1408 | |
|
|
1409 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1410 | array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void)); |
|
|
1411 | prepares [preparecnt - 1] = w; |
|
|
1412 | } |
|
|
1413 | |
|
|
1414 | void |
|
|
1415 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
|
|
1416 | { |
|
|
1417 | ev_clear_pending (EV_A_ (W)w); |
|
|
1418 | if (ev_is_active (w)) |
|
|
1419 | return; |
|
|
1420 | |
|
|
1421 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
|
|
1422 | ev_stop (EV_A_ (W)w); |
|
|
1423 | } |
|
|
1424 | |
|
|
1425 | void |
|
|
1426 | ev_check_start (EV_P_ struct ev_check *w) |
|
|
1427 | { |
|
|
1428 | if (ev_is_active (w)) |
|
|
1429 | return; |
|
|
1430 | |
|
|
1431 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1432 | array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void)); |
|
|
1433 | checks [checkcnt - 1] = w; |
|
|
1434 | } |
|
|
1435 | |
|
|
1436 | void |
|
|
1437 | ev_check_stop (EV_P_ struct ev_check *w) |
|
|
1438 | { |
|
|
1439 | ev_clear_pending (EV_A_ (W)w); |
|
|
1440 | if (ev_is_active (w)) |
|
|
1441 | return; |
|
|
1442 | |
|
|
1443 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
|
|
1444 | ev_stop (EV_A_ (W)w); |
|
|
1445 | } |
|
|
1446 | |
3422 | |
1447 | #ifndef SA_RESTART |
3423 | #ifndef SA_RESTART |
1448 | # define SA_RESTART 0 |
3424 | # define SA_RESTART 0 |
1449 | #endif |
3425 | #endif |
1450 | |
3426 | |
|
|
3427 | #if EV_SIGNAL_ENABLE |
|
|
3428 | |
|
|
3429 | void noinline |
|
|
3430 | ev_signal_start (EV_P_ ev_signal *w) |
|
|
3431 | { |
|
|
3432 | if (expect_false (ev_is_active (w))) |
|
|
3433 | return; |
|
|
3434 | |
|
|
3435 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
|
|
3436 | |
|
|
3437 | #if EV_MULTIPLICITY |
|
|
3438 | assert (("libev: a signal must not be attached to two different loops", |
|
|
3439 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
|
|
3440 | |
|
|
3441 | signals [w->signum - 1].loop = EV_A; |
|
|
3442 | #endif |
|
|
3443 | |
|
|
3444 | EV_FREQUENT_CHECK; |
|
|
3445 | |
|
|
3446 | #if EV_USE_SIGNALFD |
|
|
3447 | if (sigfd == -2) |
|
|
3448 | { |
|
|
3449 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
|
|
3450 | if (sigfd < 0 && errno == EINVAL) |
|
|
3451 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
|
|
3452 | |
|
|
3453 | if (sigfd >= 0) |
|
|
3454 | { |
|
|
3455 | fd_intern (sigfd); /* doing it twice will not hurt */ |
|
|
3456 | |
|
|
3457 | sigemptyset (&sigfd_set); |
|
|
3458 | |
|
|
3459 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
3460 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
3461 | ev_io_start (EV_A_ &sigfd_w); |
|
|
3462 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
3463 | } |
|
|
3464 | } |
|
|
3465 | |
|
|
3466 | if (sigfd >= 0) |
|
|
3467 | { |
|
|
3468 | /* TODO: check .head */ |
|
|
3469 | sigaddset (&sigfd_set, w->signum); |
|
|
3470 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
3471 | |
|
|
3472 | signalfd (sigfd, &sigfd_set, 0); |
|
|
3473 | } |
|
|
3474 | #endif |
|
|
3475 | |
|
|
3476 | ev_start (EV_A_ (W)w, 1); |
|
|
3477 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
|
|
3478 | |
|
|
3479 | if (!((WL)w)->next) |
|
|
3480 | # if EV_USE_SIGNALFD |
|
|
3481 | if (sigfd < 0) /*TODO*/ |
|
|
3482 | # endif |
|
|
3483 | { |
|
|
3484 | # ifdef _WIN32 |
|
|
3485 | evpipe_init (EV_A); |
|
|
3486 | |
|
|
3487 | signal (w->signum, ev_sighandler); |
|
|
3488 | # else |
|
|
3489 | struct sigaction sa; |
|
|
3490 | |
|
|
3491 | evpipe_init (EV_A); |
|
|
3492 | |
|
|
3493 | sa.sa_handler = ev_sighandler; |
|
|
3494 | sigfillset (&sa.sa_mask); |
|
|
3495 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
|
|
3496 | sigaction (w->signum, &sa, 0); |
|
|
3497 | |
|
|
3498 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
3499 | { |
|
|
3500 | sigemptyset (&sa.sa_mask); |
|
|
3501 | sigaddset (&sa.sa_mask, w->signum); |
|
|
3502 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
3503 | } |
|
|
3504 | #endif |
|
|
3505 | } |
|
|
3506 | |
|
|
3507 | EV_FREQUENT_CHECK; |
|
|
3508 | } |
|
|
3509 | |
|
|
3510 | void noinline |
|
|
3511 | ev_signal_stop (EV_P_ ev_signal *w) |
|
|
3512 | { |
|
|
3513 | clear_pending (EV_A_ (W)w); |
|
|
3514 | if (expect_false (!ev_is_active (w))) |
|
|
3515 | return; |
|
|
3516 | |
|
|
3517 | EV_FREQUENT_CHECK; |
|
|
3518 | |
|
|
3519 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
|
|
3520 | ev_stop (EV_A_ (W)w); |
|
|
3521 | |
|
|
3522 | if (!signals [w->signum - 1].head) |
|
|
3523 | { |
|
|
3524 | #if EV_MULTIPLICITY |
|
|
3525 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
3526 | #endif |
|
|
3527 | #if EV_USE_SIGNALFD |
|
|
3528 | if (sigfd >= 0) |
|
|
3529 | { |
|
|
3530 | sigset_t ss; |
|
|
3531 | |
|
|
3532 | sigemptyset (&ss); |
|
|
3533 | sigaddset (&ss, w->signum); |
|
|
3534 | sigdelset (&sigfd_set, w->signum); |
|
|
3535 | |
|
|
3536 | signalfd (sigfd, &sigfd_set, 0); |
|
|
3537 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
3538 | } |
|
|
3539 | else |
|
|
3540 | #endif |
|
|
3541 | signal (w->signum, SIG_DFL); |
|
|
3542 | } |
|
|
3543 | |
|
|
3544 | EV_FREQUENT_CHECK; |
|
|
3545 | } |
|
|
3546 | |
|
|
3547 | #endif |
|
|
3548 | |
|
|
3549 | #if EV_CHILD_ENABLE |
|
|
3550 | |
1451 | void |
3551 | void |
1452 | ev_signal_start (EV_P_ struct ev_signal *w) |
3552 | ev_child_start (EV_P_ ev_child *w) |
1453 | { |
3553 | { |
1454 | #if EV_MULTIPLICITY |
3554 | #if EV_MULTIPLICITY |
1455 | assert (("signal watchers are only supported in the default loop", loop == default_loop)); |
3555 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1456 | #endif |
3556 | #endif |
1457 | if (ev_is_active (w)) |
3557 | if (expect_false (ev_is_active (w))) |
1458 | return; |
3558 | return; |
1459 | |
3559 | |
1460 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
3560 | EV_FREQUENT_CHECK; |
1461 | |
3561 | |
1462 | ev_start (EV_A_ (W)w, 1); |
3562 | ev_start (EV_A_ (W)w, 1); |
1463 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
3563 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
1464 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
|
|
1465 | |
3564 | |
1466 | if (!((WL)w)->next) |
3565 | EV_FREQUENT_CHECK; |
|
|
3566 | } |
|
|
3567 | |
|
|
3568 | void |
|
|
3569 | ev_child_stop (EV_P_ ev_child *w) |
|
|
3570 | { |
|
|
3571 | clear_pending (EV_A_ (W)w); |
|
|
3572 | if (expect_false (!ev_is_active (w))) |
|
|
3573 | return; |
|
|
3574 | |
|
|
3575 | EV_FREQUENT_CHECK; |
|
|
3576 | |
|
|
3577 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
|
|
3578 | ev_stop (EV_A_ (W)w); |
|
|
3579 | |
|
|
3580 | EV_FREQUENT_CHECK; |
|
|
3581 | } |
|
|
3582 | |
|
|
3583 | #endif |
|
|
3584 | |
|
|
3585 | #if EV_STAT_ENABLE |
|
|
3586 | |
|
|
3587 | # ifdef _WIN32 |
|
|
3588 | # undef lstat |
|
|
3589 | # define lstat(a,b) _stati64 (a,b) |
|
|
3590 | # endif |
|
|
3591 | |
|
|
3592 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
3593 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
|
|
3594 | #define MIN_STAT_INTERVAL 0.1074891 |
|
|
3595 | |
|
|
3596 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
|
|
3597 | |
|
|
3598 | #if EV_USE_INOTIFY |
|
|
3599 | |
|
|
3600 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
3601 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
|
|
3602 | |
|
|
3603 | static void noinline |
|
|
3604 | infy_add (EV_P_ ev_stat *w) |
|
|
3605 | { |
|
|
3606 | 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); |
|
|
3607 | |
|
|
3608 | if (w->wd >= 0) |
|
|
3609 | { |
|
|
3610 | struct statfs sfs; |
|
|
3611 | |
|
|
3612 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
3613 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
3614 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
3615 | |
|
|
3616 | if (!fs_2625) |
|
|
3617 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3618 | else if (!statfs (w->path, &sfs) |
|
|
3619 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
3620 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
3621 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
3622 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
3623 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
3624 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
3625 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
3626 | else |
|
|
3627 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
1467 | { |
3628 | } |
1468 | #if WIN32 |
3629 | else |
1469 | signal (w->signum, sighandler); |
3630 | { |
|
|
3631 | /* can't use inotify, continue to stat */ |
|
|
3632 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3633 | |
|
|
3634 | /* if path is not there, monitor some parent directory for speedup hints */ |
|
|
3635 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
|
|
3636 | /* but an efficiency issue only */ |
|
|
3637 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
|
|
3638 | { |
|
|
3639 | char path [4096]; |
|
|
3640 | strcpy (path, w->path); |
|
|
3641 | |
|
|
3642 | do |
|
|
3643 | { |
|
|
3644 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
|
|
3645 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
|
|
3646 | |
|
|
3647 | char *pend = strrchr (path, '/'); |
|
|
3648 | |
|
|
3649 | if (!pend || pend == path) |
|
|
3650 | break; |
|
|
3651 | |
|
|
3652 | *pend = 0; |
|
|
3653 | w->wd = inotify_add_watch (fs_fd, path, mask); |
|
|
3654 | } |
|
|
3655 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
|
|
3656 | } |
|
|
3657 | } |
|
|
3658 | |
|
|
3659 | if (w->wd >= 0) |
|
|
3660 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
|
|
3661 | |
|
|
3662 | /* now re-arm timer, if required */ |
|
|
3663 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
|
|
3664 | ev_timer_again (EV_A_ &w->timer); |
|
|
3665 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3666 | } |
|
|
3667 | |
|
|
3668 | static void noinline |
|
|
3669 | infy_del (EV_P_ ev_stat *w) |
|
|
3670 | { |
|
|
3671 | int slot; |
|
|
3672 | int wd = w->wd; |
|
|
3673 | |
|
|
3674 | if (wd < 0) |
|
|
3675 | return; |
|
|
3676 | |
|
|
3677 | w->wd = -2; |
|
|
3678 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
|
|
3679 | wlist_del (&fs_hash [slot].head, (WL)w); |
|
|
3680 | |
|
|
3681 | /* remove this watcher, if others are watching it, they will rearm */ |
|
|
3682 | inotify_rm_watch (fs_fd, wd); |
|
|
3683 | } |
|
|
3684 | |
|
|
3685 | static void noinline |
|
|
3686 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
|
|
3687 | { |
|
|
3688 | if (slot < 0) |
|
|
3689 | /* overflow, need to check for all hash slots */ |
|
|
3690 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
|
|
3691 | infy_wd (EV_A_ slot, wd, ev); |
|
|
3692 | else |
|
|
3693 | { |
|
|
3694 | WL w_; |
|
|
3695 | |
|
|
3696 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
|
|
3697 | { |
|
|
3698 | ev_stat *w = (ev_stat *)w_; |
|
|
3699 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
|
|
3700 | |
|
|
3701 | if (w->wd == wd || wd == -1) |
|
|
3702 | { |
|
|
3703 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
|
|
3704 | { |
|
|
3705 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
|
|
3706 | w->wd = -1; |
|
|
3707 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
3708 | } |
|
|
3709 | |
|
|
3710 | stat_timer_cb (EV_A_ &w->timer, 0); |
|
|
3711 | } |
|
|
3712 | } |
|
|
3713 | } |
|
|
3714 | } |
|
|
3715 | |
|
|
3716 | static void |
|
|
3717 | infy_cb (EV_P_ ev_io *w, int revents) |
|
|
3718 | { |
|
|
3719 | char buf [EV_INOTIFY_BUFSIZE]; |
|
|
3720 | int ofs; |
|
|
3721 | int len = read (fs_fd, buf, sizeof (buf)); |
|
|
3722 | |
|
|
3723 | for (ofs = 0; ofs < len; ) |
|
|
3724 | { |
|
|
3725 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
|
|
3726 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3727 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3728 | } |
|
|
3729 | } |
|
|
3730 | |
|
|
3731 | inline_size void ecb_cold |
|
|
3732 | ev_check_2625 (EV_P) |
|
|
3733 | { |
|
|
3734 | /* kernels < 2.6.25 are borked |
|
|
3735 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
3736 | */ |
|
|
3737 | if (ev_linux_version () < 0x020619) |
|
|
3738 | return; |
|
|
3739 | |
|
|
3740 | fs_2625 = 1; |
|
|
3741 | } |
|
|
3742 | |
|
|
3743 | inline_size int |
|
|
3744 | infy_newfd (void) |
|
|
3745 | { |
|
|
3746 | #if defined IN_CLOEXEC && defined IN_NONBLOCK |
|
|
3747 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3748 | if (fd >= 0) |
|
|
3749 | return fd; |
|
|
3750 | #endif |
|
|
3751 | return inotify_init (); |
|
|
3752 | } |
|
|
3753 | |
|
|
3754 | inline_size void |
|
|
3755 | infy_init (EV_P) |
|
|
3756 | { |
|
|
3757 | if (fs_fd != -2) |
|
|
3758 | return; |
|
|
3759 | |
|
|
3760 | fs_fd = -1; |
|
|
3761 | |
|
|
3762 | ev_check_2625 (EV_A); |
|
|
3763 | |
|
|
3764 | fs_fd = infy_newfd (); |
|
|
3765 | |
|
|
3766 | if (fs_fd >= 0) |
|
|
3767 | { |
|
|
3768 | fd_intern (fs_fd); |
|
|
3769 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
|
|
3770 | ev_set_priority (&fs_w, EV_MAXPRI); |
|
|
3771 | ev_io_start (EV_A_ &fs_w); |
|
|
3772 | ev_unref (EV_A); |
|
|
3773 | } |
|
|
3774 | } |
|
|
3775 | |
|
|
3776 | inline_size void |
|
|
3777 | infy_fork (EV_P) |
|
|
3778 | { |
|
|
3779 | int slot; |
|
|
3780 | |
|
|
3781 | if (fs_fd < 0) |
|
|
3782 | return; |
|
|
3783 | |
|
|
3784 | ev_ref (EV_A); |
|
|
3785 | ev_io_stop (EV_A_ &fs_w); |
|
|
3786 | close (fs_fd); |
|
|
3787 | fs_fd = infy_newfd (); |
|
|
3788 | |
|
|
3789 | if (fs_fd >= 0) |
|
|
3790 | { |
|
|
3791 | fd_intern (fs_fd); |
|
|
3792 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3793 | ev_io_start (EV_A_ &fs_w); |
|
|
3794 | ev_unref (EV_A); |
|
|
3795 | } |
|
|
3796 | |
|
|
3797 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
|
|
3798 | { |
|
|
3799 | WL w_ = fs_hash [slot].head; |
|
|
3800 | fs_hash [slot].head = 0; |
|
|
3801 | |
|
|
3802 | while (w_) |
|
|
3803 | { |
|
|
3804 | ev_stat *w = (ev_stat *)w_; |
|
|
3805 | w_ = w_->next; /* lets us add this watcher */ |
|
|
3806 | |
|
|
3807 | w->wd = -1; |
|
|
3808 | |
|
|
3809 | if (fs_fd >= 0) |
|
|
3810 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
3811 | else |
|
|
3812 | { |
|
|
3813 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3814 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
|
|
3815 | ev_timer_again (EV_A_ &w->timer); |
|
|
3816 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3817 | } |
|
|
3818 | } |
|
|
3819 | } |
|
|
3820 | } |
|
|
3821 | |
|
|
3822 | #endif |
|
|
3823 | |
|
|
3824 | #ifdef _WIN32 |
|
|
3825 | # define EV_LSTAT(p,b) _stati64 (p, b) |
1470 | #else |
3826 | #else |
1471 | struct sigaction sa; |
3827 | # define EV_LSTAT(p,b) lstat (p, b) |
1472 | sa.sa_handler = sighandler; |
|
|
1473 | sigfillset (&sa.sa_mask); |
|
|
1474 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
|
|
1475 | sigaction (w->signum, &sa, 0); |
|
|
1476 | #endif |
3828 | #endif |
1477 | } |
|
|
1478 | } |
|
|
1479 | |
3829 | |
1480 | void |
3830 | void |
1481 | ev_signal_stop (EV_P_ struct ev_signal *w) |
3831 | ev_stat_stat (EV_P_ ev_stat *w) |
1482 | { |
3832 | { |
1483 | ev_clear_pending (EV_A_ (W)w); |
3833 | if (lstat (w->path, &w->attr) < 0) |
1484 | if (!ev_is_active (w)) |
3834 | w->attr.st_nlink = 0; |
|
|
3835 | else if (!w->attr.st_nlink) |
|
|
3836 | w->attr.st_nlink = 1; |
|
|
3837 | } |
|
|
3838 | |
|
|
3839 | static void noinline |
|
|
3840 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
3841 | { |
|
|
3842 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
3843 | |
|
|
3844 | ev_statdata prev = w->attr; |
|
|
3845 | ev_stat_stat (EV_A_ w); |
|
|
3846 | |
|
|
3847 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
|
|
3848 | if ( |
|
|
3849 | prev.st_dev != w->attr.st_dev |
|
|
3850 | || prev.st_ino != w->attr.st_ino |
|
|
3851 | || prev.st_mode != w->attr.st_mode |
|
|
3852 | || prev.st_nlink != w->attr.st_nlink |
|
|
3853 | || prev.st_uid != w->attr.st_uid |
|
|
3854 | || prev.st_gid != w->attr.st_gid |
|
|
3855 | || prev.st_rdev != w->attr.st_rdev |
|
|
3856 | || prev.st_size != w->attr.st_size |
|
|
3857 | || prev.st_atime != w->attr.st_atime |
|
|
3858 | || prev.st_mtime != w->attr.st_mtime |
|
|
3859 | || prev.st_ctime != w->attr.st_ctime |
|
|
3860 | ) { |
|
|
3861 | /* we only update w->prev on actual differences */ |
|
|
3862 | /* in case we test more often than invoke the callback, */ |
|
|
3863 | /* to ensure that prev is always different to attr */ |
|
|
3864 | w->prev = prev; |
|
|
3865 | |
|
|
3866 | #if EV_USE_INOTIFY |
|
|
3867 | if (fs_fd >= 0) |
|
|
3868 | { |
|
|
3869 | infy_del (EV_A_ w); |
|
|
3870 | infy_add (EV_A_ w); |
|
|
3871 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
3872 | } |
|
|
3873 | #endif |
|
|
3874 | |
|
|
3875 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
3876 | } |
|
|
3877 | } |
|
|
3878 | |
|
|
3879 | void |
|
|
3880 | ev_stat_start (EV_P_ ev_stat *w) |
|
|
3881 | { |
|
|
3882 | if (expect_false (ev_is_active (w))) |
1485 | return; |
3883 | return; |
1486 | |
3884 | |
1487 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
3885 | ev_stat_stat (EV_A_ w); |
|
|
3886 | |
|
|
3887 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
|
|
3888 | w->interval = MIN_STAT_INTERVAL; |
|
|
3889 | |
|
|
3890 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
|
|
3891 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
3892 | |
|
|
3893 | #if EV_USE_INOTIFY |
|
|
3894 | infy_init (EV_A); |
|
|
3895 | |
|
|
3896 | if (fs_fd >= 0) |
|
|
3897 | infy_add (EV_A_ w); |
|
|
3898 | else |
|
|
3899 | #endif |
|
|
3900 | { |
|
|
3901 | ev_timer_again (EV_A_ &w->timer); |
|
|
3902 | ev_unref (EV_A); |
|
|
3903 | } |
|
|
3904 | |
|
|
3905 | ev_start (EV_A_ (W)w, 1); |
|
|
3906 | |
|
|
3907 | EV_FREQUENT_CHECK; |
|
|
3908 | } |
|
|
3909 | |
|
|
3910 | void |
|
|
3911 | ev_stat_stop (EV_P_ ev_stat *w) |
|
|
3912 | { |
|
|
3913 | clear_pending (EV_A_ (W)w); |
|
|
3914 | if (expect_false (!ev_is_active (w))) |
|
|
3915 | return; |
|
|
3916 | |
|
|
3917 | EV_FREQUENT_CHECK; |
|
|
3918 | |
|
|
3919 | #if EV_USE_INOTIFY |
|
|
3920 | infy_del (EV_A_ w); |
|
|
3921 | #endif |
|
|
3922 | |
|
|
3923 | if (ev_is_active (&w->timer)) |
|
|
3924 | { |
|
|
3925 | ev_ref (EV_A); |
|
|
3926 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3927 | } |
|
|
3928 | |
1488 | ev_stop (EV_A_ (W)w); |
3929 | ev_stop (EV_A_ (W)w); |
1489 | |
3930 | |
1490 | if (!signals [w->signum - 1].head) |
3931 | EV_FREQUENT_CHECK; |
1491 | signal (w->signum, SIG_DFL); |
|
|
1492 | } |
3932 | } |
|
|
3933 | #endif |
1493 | |
3934 | |
|
|
3935 | #if EV_IDLE_ENABLE |
1494 | void |
3936 | void |
1495 | ev_child_start (EV_P_ struct ev_child *w) |
3937 | ev_idle_start (EV_P_ ev_idle *w) |
1496 | { |
3938 | { |
1497 | #if EV_MULTIPLICITY |
|
|
1498 | assert (("child watchers are only supported in the default loop", loop == default_loop)); |
|
|
1499 | #endif |
|
|
1500 | if (ev_is_active (w)) |
3939 | if (expect_false (ev_is_active (w))) |
1501 | return; |
3940 | return; |
1502 | |
3941 | |
|
|
3942 | pri_adjust (EV_A_ (W)w); |
|
|
3943 | |
|
|
3944 | EV_FREQUENT_CHECK; |
|
|
3945 | |
|
|
3946 | { |
|
|
3947 | int active = ++idlecnt [ABSPRI (w)]; |
|
|
3948 | |
|
|
3949 | ++idleall; |
|
|
3950 | ev_start (EV_A_ (W)w, active); |
|
|
3951 | |
|
|
3952 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
|
|
3953 | idles [ABSPRI (w)][active - 1] = w; |
|
|
3954 | } |
|
|
3955 | |
|
|
3956 | EV_FREQUENT_CHECK; |
|
|
3957 | } |
|
|
3958 | |
|
|
3959 | void |
|
|
3960 | ev_idle_stop (EV_P_ ev_idle *w) |
|
|
3961 | { |
|
|
3962 | clear_pending (EV_A_ (W)w); |
|
|
3963 | if (expect_false (!ev_is_active (w))) |
|
|
3964 | return; |
|
|
3965 | |
|
|
3966 | EV_FREQUENT_CHECK; |
|
|
3967 | |
|
|
3968 | { |
|
|
3969 | int active = ev_active (w); |
|
|
3970 | |
|
|
3971 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
|
|
3972 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
|
|
3973 | |
|
|
3974 | ev_stop (EV_A_ (W)w); |
|
|
3975 | --idleall; |
|
|
3976 | } |
|
|
3977 | |
|
|
3978 | EV_FREQUENT_CHECK; |
|
|
3979 | } |
|
|
3980 | #endif |
|
|
3981 | |
|
|
3982 | #if EV_PREPARE_ENABLE |
|
|
3983 | void |
|
|
3984 | ev_prepare_start (EV_P_ ev_prepare *w) |
|
|
3985 | { |
|
|
3986 | if (expect_false (ev_is_active (w))) |
|
|
3987 | return; |
|
|
3988 | |
|
|
3989 | EV_FREQUENT_CHECK; |
|
|
3990 | |
|
|
3991 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
3992 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
|
|
3993 | prepares [preparecnt - 1] = w; |
|
|
3994 | |
|
|
3995 | EV_FREQUENT_CHECK; |
|
|
3996 | } |
|
|
3997 | |
|
|
3998 | void |
|
|
3999 | ev_prepare_stop (EV_P_ ev_prepare *w) |
|
|
4000 | { |
|
|
4001 | clear_pending (EV_A_ (W)w); |
|
|
4002 | if (expect_false (!ev_is_active (w))) |
|
|
4003 | return; |
|
|
4004 | |
|
|
4005 | EV_FREQUENT_CHECK; |
|
|
4006 | |
|
|
4007 | { |
|
|
4008 | int active = ev_active (w); |
|
|
4009 | |
|
|
4010 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
4011 | ev_active (prepares [active - 1]) = active; |
|
|
4012 | } |
|
|
4013 | |
|
|
4014 | ev_stop (EV_A_ (W)w); |
|
|
4015 | |
|
|
4016 | EV_FREQUENT_CHECK; |
|
|
4017 | } |
|
|
4018 | #endif |
|
|
4019 | |
|
|
4020 | #if EV_CHECK_ENABLE |
|
|
4021 | void |
|
|
4022 | ev_check_start (EV_P_ ev_check *w) |
|
|
4023 | { |
|
|
4024 | if (expect_false (ev_is_active (w))) |
|
|
4025 | return; |
|
|
4026 | |
|
|
4027 | EV_FREQUENT_CHECK; |
|
|
4028 | |
|
|
4029 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
4030 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
|
|
4031 | checks [checkcnt - 1] = w; |
|
|
4032 | |
|
|
4033 | EV_FREQUENT_CHECK; |
|
|
4034 | } |
|
|
4035 | |
|
|
4036 | void |
|
|
4037 | ev_check_stop (EV_P_ ev_check *w) |
|
|
4038 | { |
|
|
4039 | clear_pending (EV_A_ (W)w); |
|
|
4040 | if (expect_false (!ev_is_active (w))) |
|
|
4041 | return; |
|
|
4042 | |
|
|
4043 | EV_FREQUENT_CHECK; |
|
|
4044 | |
|
|
4045 | { |
|
|
4046 | int active = ev_active (w); |
|
|
4047 | |
|
|
4048 | checks [active - 1] = checks [--checkcnt]; |
|
|
4049 | ev_active (checks [active - 1]) = active; |
|
|
4050 | } |
|
|
4051 | |
|
|
4052 | ev_stop (EV_A_ (W)w); |
|
|
4053 | |
|
|
4054 | EV_FREQUENT_CHECK; |
|
|
4055 | } |
|
|
4056 | #endif |
|
|
4057 | |
|
|
4058 | #if EV_EMBED_ENABLE |
|
|
4059 | void noinline |
|
|
4060 | ev_embed_sweep (EV_P_ ev_embed *w) |
|
|
4061 | { |
|
|
4062 | ev_run (w->other, EVRUN_NOWAIT); |
|
|
4063 | } |
|
|
4064 | |
|
|
4065 | static void |
|
|
4066 | embed_io_cb (EV_P_ ev_io *io, int revents) |
|
|
4067 | { |
|
|
4068 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
|
|
4069 | |
|
|
4070 | if (ev_cb (w)) |
|
|
4071 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
|
|
4072 | else |
|
|
4073 | ev_run (w->other, EVRUN_NOWAIT); |
|
|
4074 | } |
|
|
4075 | |
|
|
4076 | static void |
|
|
4077 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
4078 | { |
|
|
4079 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
4080 | |
|
|
4081 | { |
|
|
4082 | EV_P = w->other; |
|
|
4083 | |
|
|
4084 | while (fdchangecnt) |
|
|
4085 | { |
|
|
4086 | fd_reify (EV_A); |
|
|
4087 | ev_run (EV_A_ EVRUN_NOWAIT); |
|
|
4088 | } |
|
|
4089 | } |
|
|
4090 | } |
|
|
4091 | |
|
|
4092 | static void |
|
|
4093 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
4094 | { |
|
|
4095 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
4096 | |
|
|
4097 | ev_embed_stop (EV_A_ w); |
|
|
4098 | |
|
|
4099 | { |
|
|
4100 | EV_P = w->other; |
|
|
4101 | |
|
|
4102 | ev_loop_fork (EV_A); |
|
|
4103 | ev_run (EV_A_ EVRUN_NOWAIT); |
|
|
4104 | } |
|
|
4105 | |
|
|
4106 | ev_embed_start (EV_A_ w); |
|
|
4107 | } |
|
|
4108 | |
|
|
4109 | #if 0 |
|
|
4110 | static void |
|
|
4111 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
4112 | { |
|
|
4113 | ev_idle_stop (EV_A_ idle); |
|
|
4114 | } |
|
|
4115 | #endif |
|
|
4116 | |
|
|
4117 | void |
|
|
4118 | ev_embed_start (EV_P_ ev_embed *w) |
|
|
4119 | { |
|
|
4120 | if (expect_false (ev_is_active (w))) |
|
|
4121 | return; |
|
|
4122 | |
|
|
4123 | { |
|
|
4124 | EV_P = w->other; |
|
|
4125 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
|
|
4126 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
|
|
4127 | } |
|
|
4128 | |
|
|
4129 | EV_FREQUENT_CHECK; |
|
|
4130 | |
|
|
4131 | ev_set_priority (&w->io, ev_priority (w)); |
|
|
4132 | ev_io_start (EV_A_ &w->io); |
|
|
4133 | |
|
|
4134 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
4135 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
4136 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
4137 | |
|
|
4138 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
4139 | ev_fork_start (EV_A_ &w->fork); |
|
|
4140 | |
|
|
4141 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
4142 | |
1503 | ev_start (EV_A_ (W)w, 1); |
4143 | ev_start (EV_A_ (W)w, 1); |
1504 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
4144 | |
|
|
4145 | EV_FREQUENT_CHECK; |
1505 | } |
4146 | } |
1506 | |
4147 | |
1507 | void |
4148 | void |
1508 | ev_child_stop (EV_P_ struct ev_child *w) |
4149 | ev_embed_stop (EV_P_ ev_embed *w) |
1509 | { |
4150 | { |
1510 | ev_clear_pending (EV_A_ (W)w); |
4151 | clear_pending (EV_A_ (W)w); |
1511 | if (ev_is_active (w)) |
4152 | if (expect_false (!ev_is_active (w))) |
1512 | return; |
4153 | return; |
1513 | |
4154 | |
1514 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
4155 | EV_FREQUENT_CHECK; |
|
|
4156 | |
|
|
4157 | ev_io_stop (EV_A_ &w->io); |
|
|
4158 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
4159 | ev_fork_stop (EV_A_ &w->fork); |
|
|
4160 | |
1515 | ev_stop (EV_A_ (W)w); |
4161 | ev_stop (EV_A_ (W)w); |
|
|
4162 | |
|
|
4163 | EV_FREQUENT_CHECK; |
1516 | } |
4164 | } |
|
|
4165 | #endif |
|
|
4166 | |
|
|
4167 | #if EV_FORK_ENABLE |
|
|
4168 | void |
|
|
4169 | ev_fork_start (EV_P_ ev_fork *w) |
|
|
4170 | { |
|
|
4171 | if (expect_false (ev_is_active (w))) |
|
|
4172 | return; |
|
|
4173 | |
|
|
4174 | EV_FREQUENT_CHECK; |
|
|
4175 | |
|
|
4176 | ev_start (EV_A_ (W)w, ++forkcnt); |
|
|
4177 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
|
|
4178 | forks [forkcnt - 1] = w; |
|
|
4179 | |
|
|
4180 | EV_FREQUENT_CHECK; |
|
|
4181 | } |
|
|
4182 | |
|
|
4183 | void |
|
|
4184 | ev_fork_stop (EV_P_ ev_fork *w) |
|
|
4185 | { |
|
|
4186 | clear_pending (EV_A_ (W)w); |
|
|
4187 | if (expect_false (!ev_is_active (w))) |
|
|
4188 | return; |
|
|
4189 | |
|
|
4190 | EV_FREQUENT_CHECK; |
|
|
4191 | |
|
|
4192 | { |
|
|
4193 | int active = ev_active (w); |
|
|
4194 | |
|
|
4195 | forks [active - 1] = forks [--forkcnt]; |
|
|
4196 | ev_active (forks [active - 1]) = active; |
|
|
4197 | } |
|
|
4198 | |
|
|
4199 | ev_stop (EV_A_ (W)w); |
|
|
4200 | |
|
|
4201 | EV_FREQUENT_CHECK; |
|
|
4202 | } |
|
|
4203 | #endif |
|
|
4204 | |
|
|
4205 | #if EV_CLEANUP_ENABLE |
|
|
4206 | void |
|
|
4207 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
|
|
4208 | { |
|
|
4209 | if (expect_false (ev_is_active (w))) |
|
|
4210 | return; |
|
|
4211 | |
|
|
4212 | EV_FREQUENT_CHECK; |
|
|
4213 | |
|
|
4214 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
4215 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
|
|
4216 | cleanups [cleanupcnt - 1] = w; |
|
|
4217 | |
|
|
4218 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
4219 | ev_unref (EV_A); |
|
|
4220 | EV_FREQUENT_CHECK; |
|
|
4221 | } |
|
|
4222 | |
|
|
4223 | void |
|
|
4224 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
|
|
4225 | { |
|
|
4226 | clear_pending (EV_A_ (W)w); |
|
|
4227 | if (expect_false (!ev_is_active (w))) |
|
|
4228 | return; |
|
|
4229 | |
|
|
4230 | EV_FREQUENT_CHECK; |
|
|
4231 | ev_ref (EV_A); |
|
|
4232 | |
|
|
4233 | { |
|
|
4234 | int active = ev_active (w); |
|
|
4235 | |
|
|
4236 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
4237 | ev_active (cleanups [active - 1]) = active; |
|
|
4238 | } |
|
|
4239 | |
|
|
4240 | ev_stop (EV_A_ (W)w); |
|
|
4241 | |
|
|
4242 | EV_FREQUENT_CHECK; |
|
|
4243 | } |
|
|
4244 | #endif |
|
|
4245 | |
|
|
4246 | #if EV_ASYNC_ENABLE |
|
|
4247 | void |
|
|
4248 | ev_async_start (EV_P_ ev_async *w) |
|
|
4249 | { |
|
|
4250 | if (expect_false (ev_is_active (w))) |
|
|
4251 | return; |
|
|
4252 | |
|
|
4253 | w->sent = 0; |
|
|
4254 | |
|
|
4255 | evpipe_init (EV_A); |
|
|
4256 | |
|
|
4257 | EV_FREQUENT_CHECK; |
|
|
4258 | |
|
|
4259 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
4260 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
4261 | asyncs [asynccnt - 1] = w; |
|
|
4262 | |
|
|
4263 | EV_FREQUENT_CHECK; |
|
|
4264 | } |
|
|
4265 | |
|
|
4266 | void |
|
|
4267 | ev_async_stop (EV_P_ ev_async *w) |
|
|
4268 | { |
|
|
4269 | clear_pending (EV_A_ (W)w); |
|
|
4270 | if (expect_false (!ev_is_active (w))) |
|
|
4271 | return; |
|
|
4272 | |
|
|
4273 | EV_FREQUENT_CHECK; |
|
|
4274 | |
|
|
4275 | { |
|
|
4276 | int active = ev_active (w); |
|
|
4277 | |
|
|
4278 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
4279 | ev_active (asyncs [active - 1]) = active; |
|
|
4280 | } |
|
|
4281 | |
|
|
4282 | ev_stop (EV_A_ (W)w); |
|
|
4283 | |
|
|
4284 | EV_FREQUENT_CHECK; |
|
|
4285 | } |
|
|
4286 | |
|
|
4287 | void |
|
|
4288 | ev_async_send (EV_P_ ev_async *w) |
|
|
4289 | { |
|
|
4290 | w->sent = 1; |
|
|
4291 | evpipe_write (EV_A_ &async_pending); |
|
|
4292 | } |
|
|
4293 | #endif |
1517 | |
4294 | |
1518 | /*****************************************************************************/ |
4295 | /*****************************************************************************/ |
1519 | |
4296 | |
1520 | struct ev_once |
4297 | struct ev_once |
1521 | { |
4298 | { |
1522 | struct ev_io io; |
4299 | ev_io io; |
1523 | struct ev_timer to; |
4300 | ev_timer to; |
1524 | void (*cb)(int revents, void *arg); |
4301 | void (*cb)(int revents, void *arg); |
1525 | void *arg; |
4302 | void *arg; |
1526 | }; |
4303 | }; |
1527 | |
4304 | |
1528 | static void |
4305 | static void |
1529 | once_cb (EV_P_ struct ev_once *once, int revents) |
4306 | once_cb (EV_P_ struct ev_once *once, int revents) |
1530 | { |
4307 | { |
1531 | void (*cb)(int revents, void *arg) = once->cb; |
4308 | void (*cb)(int revents, void *arg) = once->cb; |
1532 | void *arg = once->arg; |
4309 | void *arg = once->arg; |
1533 | |
4310 | |
1534 | ev_io_stop (EV_A_ &once->io); |
4311 | ev_io_stop (EV_A_ &once->io); |
1535 | ev_timer_stop (EV_A_ &once->to); |
4312 | ev_timer_stop (EV_A_ &once->to); |
1536 | ev_free (once); |
4313 | ev_free (once); |
1537 | |
4314 | |
1538 | cb (revents, arg); |
4315 | cb (revents, arg); |
1539 | } |
4316 | } |
1540 | |
4317 | |
1541 | static void |
4318 | static void |
1542 | once_cb_io (EV_P_ struct ev_io *w, int revents) |
4319 | once_cb_io (EV_P_ ev_io *w, int revents) |
1543 | { |
4320 | { |
1544 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
4321 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
4322 | |
|
|
4323 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
1545 | } |
4324 | } |
1546 | |
4325 | |
1547 | static void |
4326 | static void |
1548 | once_cb_to (EV_P_ struct ev_timer *w, int revents) |
4327 | once_cb_to (EV_P_ ev_timer *w, int revents) |
1549 | { |
4328 | { |
1550 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
4329 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
4330 | |
|
|
4331 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
1551 | } |
4332 | } |
1552 | |
4333 | |
1553 | void |
4334 | void |
1554 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
4335 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1555 | { |
4336 | { |
1556 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4337 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1557 | |
4338 | |
1558 | if (!once) |
4339 | if (expect_false (!once)) |
|
|
4340 | { |
1559 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
4341 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
1560 | else |
4342 | return; |
1561 | { |
4343 | } |
|
|
4344 | |
1562 | once->cb = cb; |
4345 | once->cb = cb; |
1563 | once->arg = arg; |
4346 | once->arg = arg; |
1564 | |
4347 | |
1565 | ev_watcher_init (&once->io, once_cb_io); |
4348 | ev_init (&once->io, once_cb_io); |
1566 | if (fd >= 0) |
4349 | if (fd >= 0) |
|
|
4350 | { |
|
|
4351 | ev_io_set (&once->io, fd, events); |
|
|
4352 | ev_io_start (EV_A_ &once->io); |
|
|
4353 | } |
|
|
4354 | |
|
|
4355 | ev_init (&once->to, once_cb_to); |
|
|
4356 | if (timeout >= 0.) |
|
|
4357 | { |
|
|
4358 | ev_timer_set (&once->to, timeout, 0.); |
|
|
4359 | ev_timer_start (EV_A_ &once->to); |
|
|
4360 | } |
|
|
4361 | } |
|
|
4362 | |
|
|
4363 | /*****************************************************************************/ |
|
|
4364 | |
|
|
4365 | #if EV_WALK_ENABLE |
|
|
4366 | void ecb_cold |
|
|
4367 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
4368 | { |
|
|
4369 | int i, j; |
|
|
4370 | ev_watcher_list *wl, *wn; |
|
|
4371 | |
|
|
4372 | if (types & (EV_IO | EV_EMBED)) |
|
|
4373 | for (i = 0; i < anfdmax; ++i) |
|
|
4374 | for (wl = anfds [i].head; wl; ) |
1567 | { |
4375 | { |
1568 | ev_io_set (&once->io, fd, events); |
4376 | wn = wl->next; |
1569 | ev_io_start (EV_A_ &once->io); |
4377 | |
|
|
4378 | #if EV_EMBED_ENABLE |
|
|
4379 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
4380 | { |
|
|
4381 | if (types & EV_EMBED) |
|
|
4382 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
4383 | } |
|
|
4384 | else |
|
|
4385 | #endif |
|
|
4386 | #if EV_USE_INOTIFY |
|
|
4387 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
4388 | ; |
|
|
4389 | else |
|
|
4390 | #endif |
|
|
4391 | if ((ev_io *)wl != &pipe_w) |
|
|
4392 | if (types & EV_IO) |
|
|
4393 | cb (EV_A_ EV_IO, wl); |
|
|
4394 | |
|
|
4395 | wl = wn; |
1570 | } |
4396 | } |
1571 | |
4397 | |
1572 | ev_watcher_init (&once->to, once_cb_to); |
4398 | if (types & (EV_TIMER | EV_STAT)) |
1573 | if (timeout >= 0.) |
4399 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
4400 | #if EV_STAT_ENABLE |
|
|
4401 | /*TODO: timer is not always active*/ |
|
|
4402 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
1574 | { |
4403 | { |
1575 | ev_timer_set (&once->to, timeout, 0.); |
4404 | if (types & EV_STAT) |
1576 | ev_timer_start (EV_A_ &once->to); |
4405 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
1577 | } |
4406 | } |
1578 | } |
4407 | else |
1579 | } |
4408 | #endif |
|
|
4409 | if (types & EV_TIMER) |
|
|
4410 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
1580 | |
4411 | |
|
|
4412 | #if EV_PERIODIC_ENABLE |
|
|
4413 | if (types & EV_PERIODIC) |
|
|
4414 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
4415 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
4416 | #endif |
|
|
4417 | |
|
|
4418 | #if EV_IDLE_ENABLE |
|
|
4419 | if (types & EV_IDLE) |
|
|
4420 | for (j = NUMPRI; j--; ) |
|
|
4421 | for (i = idlecnt [j]; i--; ) |
|
|
4422 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
4423 | #endif |
|
|
4424 | |
|
|
4425 | #if EV_FORK_ENABLE |
|
|
4426 | if (types & EV_FORK) |
|
|
4427 | for (i = forkcnt; i--; ) |
|
|
4428 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
4429 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
4430 | #endif |
|
|
4431 | |
|
|
4432 | #if EV_ASYNC_ENABLE |
|
|
4433 | if (types & EV_ASYNC) |
|
|
4434 | for (i = asynccnt; i--; ) |
|
|
4435 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
4436 | #endif |
|
|
4437 | |
|
|
4438 | #if EV_PREPARE_ENABLE |
|
|
4439 | if (types & EV_PREPARE) |
|
|
4440 | for (i = preparecnt; i--; ) |
|
|
4441 | # if EV_EMBED_ENABLE |
|
|
4442 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
4443 | # endif |
|
|
4444 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
4445 | #endif |
|
|
4446 | |
|
|
4447 | #if EV_CHECK_ENABLE |
|
|
4448 | if (types & EV_CHECK) |
|
|
4449 | for (i = checkcnt; i--; ) |
|
|
4450 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
4451 | #endif |
|
|
4452 | |
|
|
4453 | #if EV_SIGNAL_ENABLE |
|
|
4454 | if (types & EV_SIGNAL) |
|
|
4455 | for (i = 0; i < EV_NSIG - 1; ++i) |
|
|
4456 | for (wl = signals [i].head; wl; ) |
|
|
4457 | { |
|
|
4458 | wn = wl->next; |
|
|
4459 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
4460 | wl = wn; |
|
|
4461 | } |
|
|
4462 | #endif |
|
|
4463 | |
|
|
4464 | #if EV_CHILD_ENABLE |
|
|
4465 | if (types & EV_CHILD) |
|
|
4466 | for (i = (EV_PID_HASHSIZE); i--; ) |
|
|
4467 | for (wl = childs [i]; wl; ) |
|
|
4468 | { |
|
|
4469 | wn = wl->next; |
|
|
4470 | cb (EV_A_ EV_CHILD, wl); |
|
|
4471 | wl = wn; |
|
|
4472 | } |
|
|
4473 | #endif |
|
|
4474 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
4475 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
4476 | } |
|
|
4477 | #endif |
|
|
4478 | |
|
|
4479 | #if EV_MULTIPLICITY |
|
|
4480 | #include "ev_wrap.h" |
|
|
4481 | #endif |
|
|
4482 | |