… | |
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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 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: |
9 | * |
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10 | * 1. Redistributions of source code must retain the above copyright notice, |
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11 | * this list of conditions and the following disclaimer. |
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12 | * |
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13 | * 2. Redistributions in binary form must reproduce the above copyright |
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14 | * notice, this list of conditions and the following disclaimer in the |
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15 | * documentation and/or other materials provided with the distribution. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
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18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
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19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
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20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
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21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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22 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
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23 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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24 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
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25 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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26 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
10 | * |
27 | * |
11 | * * Redistributions of source code must retain the above copyright |
28 | * Alternatively, the contents of this file may be used under the terms of |
12 | * notice, this list of conditions and the following disclaimer. |
29 | * the GNU General Public License ("GPL") version 2 or any later version, |
13 | * |
30 | * in which case the provisions of the GPL are applicable instead of |
14 | * * Redistributions in binary form must reproduce the above |
31 | * the above. If you wish to allow the use of your version of this file |
15 | * copyright notice, this list of conditions and the following |
32 | * only under the terms of the GPL and not to allow others to use your |
16 | * disclaimer in the documentation and/or other materials provided |
33 | * version of this file under the BSD license, indicate your decision |
17 | * with the distribution. |
34 | * by deleting the provisions above and replace them with the notice |
18 | * |
35 | * and other provisions required by the GPL. If you do not delete the |
19 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
36 | * provisions above, a recipient may use your version of this file under |
20 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
37 | * either the BSD or the GPL. |
21 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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22 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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23 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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24 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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25 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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30 | */ |
38 | */ |
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39 | |
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40 | #ifdef __cplusplus |
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41 | extern "C" { |
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42 | #endif |
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43 | |
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44 | #ifndef EV_STANDALONE |
31 | #if EV_USE_CONFIG_H |
45 | # ifdef EV_CONFIG_H |
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46 | # include EV_CONFIG_H |
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47 | # else |
32 | # include "config.h" |
48 | # include "config.h" |
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49 | # endif |
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50 | |
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51 | # if HAVE_CLOCK_GETTIME |
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52 | # ifndef EV_USE_MONOTONIC |
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53 | # define EV_USE_MONOTONIC 1 |
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54 | # endif |
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55 | # ifndef EV_USE_REALTIME |
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56 | # define EV_USE_REALTIME 1 |
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57 | # endif |
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58 | # else |
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59 | # ifndef EV_USE_MONOTONIC |
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60 | # define EV_USE_MONOTONIC 0 |
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61 | # endif |
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62 | # ifndef EV_USE_REALTIME |
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63 | # define EV_USE_REALTIME 0 |
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64 | # endif |
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65 | # endif |
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66 | |
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67 | # ifndef EV_USE_NANOSLEEP |
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68 | # if HAVE_NANOSLEEP |
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69 | # define EV_USE_NANOSLEEP 1 |
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70 | # else |
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71 | # define EV_USE_NANOSLEEP 0 |
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72 | # endif |
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73 | # endif |
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74 | |
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75 | # ifndef EV_USE_SELECT |
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76 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
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77 | # define EV_USE_SELECT 1 |
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78 | # else |
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79 | # define EV_USE_SELECT 0 |
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80 | # endif |
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81 | # endif |
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82 | |
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83 | # ifndef EV_USE_POLL |
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84 | # if HAVE_POLL && HAVE_POLL_H |
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85 | # define EV_USE_POLL 1 |
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86 | # else |
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87 | # define EV_USE_POLL 0 |
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88 | # endif |
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89 | # endif |
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90 | |
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91 | # ifndef EV_USE_EPOLL |
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92 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
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93 | # define EV_USE_EPOLL 1 |
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94 | # else |
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95 | # define EV_USE_EPOLL 0 |
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96 | # endif |
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97 | # endif |
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98 | |
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99 | # ifndef EV_USE_KQUEUE |
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100 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
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101 | # define EV_USE_KQUEUE 1 |
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102 | # else |
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103 | # define EV_USE_KQUEUE 0 |
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104 | # endif |
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105 | # endif |
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106 | |
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107 | # ifndef EV_USE_PORT |
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108 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
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109 | # define EV_USE_PORT 1 |
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110 | # else |
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111 | # define EV_USE_PORT 0 |
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112 | # endif |
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113 | # endif |
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114 | |
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115 | # ifndef EV_USE_INOTIFY |
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116 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
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117 | # define EV_USE_INOTIFY 1 |
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118 | # else |
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119 | # define EV_USE_INOTIFY 0 |
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120 | # endif |
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121 | # endif |
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122 | |
33 | #endif |
123 | #endif |
34 | |
124 | |
35 | #include <math.h> |
125 | #include <math.h> |
36 | #include <stdlib.h> |
126 | #include <stdlib.h> |
37 | #include <unistd.h> |
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38 | #include <fcntl.h> |
127 | #include <fcntl.h> |
39 | #include <signal.h> |
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40 | #include <stddef.h> |
128 | #include <stddef.h> |
41 | |
129 | |
42 | #include <stdio.h> |
130 | #include <stdio.h> |
43 | |
131 | |
44 | #include <assert.h> |
132 | #include <assert.h> |
45 | #include <errno.h> |
133 | #include <errno.h> |
46 | #include <sys/types.h> |
134 | #include <sys/types.h> |
47 | #include <sys/wait.h> |
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48 | #include <sys/time.h> |
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49 | #include <time.h> |
135 | #include <time.h> |
50 | |
136 | |
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137 | #include <signal.h> |
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138 | |
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139 | #ifdef EV_H |
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140 | # include EV_H |
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141 | #else |
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142 | # include "ev.h" |
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143 | #endif |
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144 | |
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145 | #ifndef _WIN32 |
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146 | # include <sys/time.h> |
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147 | # include <sys/wait.h> |
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148 | # include <unistd.h> |
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149 | #else |
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150 | # define WIN32_LEAN_AND_MEAN |
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151 | # include <windows.h> |
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152 | # ifndef EV_SELECT_IS_WINSOCKET |
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153 | # define EV_SELECT_IS_WINSOCKET 1 |
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154 | # endif |
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155 | #endif |
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156 | |
51 | /**/ |
157 | /**/ |
52 | |
158 | |
53 | #ifndef EV_USE_MONOTONIC |
159 | #ifndef EV_USE_MONOTONIC |
54 | # define EV_USE_MONOTONIC 1 |
160 | # define EV_USE_MONOTONIC 0 |
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161 | #endif |
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162 | |
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163 | #ifndef EV_USE_REALTIME |
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164 | # define EV_USE_REALTIME 0 |
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165 | #endif |
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166 | |
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167 | #ifndef EV_USE_NANOSLEEP |
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168 | # define EV_USE_NANOSLEEP 0 |
55 | #endif |
169 | #endif |
56 | |
170 | |
57 | #ifndef EV_USE_SELECT |
171 | #ifndef EV_USE_SELECT |
58 | # define EV_USE_SELECT 1 |
172 | # define EV_USE_SELECT 1 |
59 | #endif |
173 | #endif |
60 | |
174 | |
61 | #ifndef EV_USE_POLL |
175 | #ifndef EV_USE_POLL |
62 | # define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */ |
176 | # ifdef _WIN32 |
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177 | # define EV_USE_POLL 0 |
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178 | # else |
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179 | # define EV_USE_POLL 1 |
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180 | # endif |
63 | #endif |
181 | #endif |
64 | |
182 | |
65 | #ifndef EV_USE_EPOLL |
183 | #ifndef EV_USE_EPOLL |
66 | # define EV_USE_EPOLL 0 |
184 | # define EV_USE_EPOLL 0 |
67 | #endif |
185 | #endif |
68 | |
186 | |
69 | #ifndef EV_USE_KQUEUE |
187 | #ifndef EV_USE_KQUEUE |
70 | # define EV_USE_KQUEUE 0 |
188 | # define EV_USE_KQUEUE 0 |
71 | #endif |
189 | #endif |
72 | |
190 | |
73 | #ifndef EV_USE_REALTIME |
191 | #ifndef EV_USE_PORT |
74 | # define EV_USE_REALTIME 1 |
192 | # define EV_USE_PORT 0 |
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193 | #endif |
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194 | |
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195 | #ifndef EV_USE_INOTIFY |
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196 | # define EV_USE_INOTIFY 0 |
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197 | #endif |
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198 | |
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199 | #ifndef EV_PID_HASHSIZE |
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200 | # if EV_MINIMAL |
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201 | # define EV_PID_HASHSIZE 1 |
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202 | # else |
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203 | # define EV_PID_HASHSIZE 16 |
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204 | # endif |
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205 | #endif |
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206 | |
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207 | #ifndef EV_INOTIFY_HASHSIZE |
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208 | # if EV_MINIMAL |
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209 | # define EV_INOTIFY_HASHSIZE 1 |
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210 | # else |
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211 | # define EV_INOTIFY_HASHSIZE 16 |
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212 | # endif |
75 | #endif |
213 | #endif |
76 | |
214 | |
77 | /**/ |
215 | /**/ |
78 | |
216 | |
79 | #ifndef CLOCK_MONOTONIC |
217 | #ifndef CLOCK_MONOTONIC |
… | |
… | |
84 | #ifndef CLOCK_REALTIME |
222 | #ifndef CLOCK_REALTIME |
85 | # undef EV_USE_REALTIME |
223 | # undef EV_USE_REALTIME |
86 | # define EV_USE_REALTIME 0 |
224 | # define EV_USE_REALTIME 0 |
87 | #endif |
225 | #endif |
88 | |
226 | |
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227 | #if !EV_STAT_ENABLE |
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228 | # undef EV_USE_INOTIFY |
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229 | # define EV_USE_INOTIFY 0 |
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230 | #endif |
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231 | |
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232 | #if !EV_USE_NANOSLEEP |
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233 | # ifndef _WIN32 |
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234 | # include <sys/select.h> |
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235 | # endif |
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236 | #endif |
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237 | |
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238 | #if EV_USE_INOTIFY |
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239 | # include <sys/inotify.h> |
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240 | #endif |
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241 | |
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242 | #if EV_SELECT_IS_WINSOCKET |
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243 | # include <winsock.h> |
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244 | #endif |
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245 | |
89 | /**/ |
246 | /**/ |
90 | |
247 | |
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248 | /* |
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249 | * This is used to avoid floating point rounding problems. |
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250 | * It is added to ev_rt_now when scheduling periodics |
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251 | * to ensure progress, time-wise, even when rounding |
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252 | * errors are against us. |
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253 | * This value is good at least till the year 4000. |
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254 | * Better solutions welcome. |
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255 | */ |
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256 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
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257 | |
91 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
258 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
92 | #define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */ |
259 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
93 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
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94 | /*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ |
260 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
95 | |
261 | |
96 | #include "ev.h" |
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97 | |
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98 | #if __GNUC__ >= 3 |
262 | #if __GNUC__ >= 4 |
99 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
263 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
100 | # define inline inline |
264 | # define noinline __attribute__ ((noinline)) |
101 | #else |
265 | #else |
102 | # define expect(expr,value) (expr) |
266 | # define expect(expr,value) (expr) |
103 | # define inline static |
267 | # define noinline |
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268 | # if __STDC_VERSION__ < 199901L |
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269 | # define inline |
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270 | # endif |
104 | #endif |
271 | #endif |
105 | |
272 | |
106 | #define expect_false(expr) expect ((expr) != 0, 0) |
273 | #define expect_false(expr) expect ((expr) != 0, 0) |
107 | #define expect_true(expr) expect ((expr) != 0, 1) |
274 | #define expect_true(expr) expect ((expr) != 0, 1) |
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275 | #define inline_size static inline |
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276 | |
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277 | #if EV_MINIMAL |
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278 | # define inline_speed static noinline |
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279 | #else |
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280 | # define inline_speed static inline |
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281 | #endif |
108 | |
282 | |
109 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
283 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
110 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
284 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
111 | |
285 | |
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286 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
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287 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
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288 | |
112 | typedef struct ev_watcher *W; |
289 | typedef ev_watcher *W; |
113 | typedef struct ev_watcher_list *WL; |
290 | typedef ev_watcher_list *WL; |
114 | typedef struct ev_watcher_time *WT; |
291 | typedef ev_watcher_time *WT; |
115 | |
292 | |
116 | static ev_tstamp now_floor, now, diff; /* monotonic clock */ |
293 | #if EV_USE_MONOTONIC |
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294 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
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295 | /* giving it a reasonably high chance of working on typical architetcures */ |
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296 | static sig_atomic_t have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
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297 | #endif |
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298 | |
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299 | #ifdef _WIN32 |
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300 | # include "ev_win32.c" |
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301 | #endif |
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302 | |
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303 | /*****************************************************************************/ |
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304 | |
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305 | static void (*syserr_cb)(const char *msg); |
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306 | |
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307 | void |
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308 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
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309 | { |
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310 | syserr_cb = cb; |
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311 | } |
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312 | |
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313 | static void noinline |
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314 | syserr (const char *msg) |
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315 | { |
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316 | if (!msg) |
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317 | msg = "(libev) system error"; |
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318 | |
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319 | if (syserr_cb) |
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320 | syserr_cb (msg); |
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321 | else |
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322 | { |
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323 | perror (msg); |
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324 | abort (); |
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325 | } |
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326 | } |
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327 | |
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328 | static void *(*alloc)(void *ptr, long size); |
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329 | |
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330 | void |
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331 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
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332 | { |
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333 | alloc = cb; |
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334 | } |
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335 | |
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336 | inline_speed void * |
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337 | ev_realloc (void *ptr, long size) |
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338 | { |
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339 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
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340 | |
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341 | if (!ptr && size) |
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342 | { |
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343 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
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344 | abort (); |
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345 | } |
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346 | |
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347 | return ptr; |
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348 | } |
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349 | |
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350 | #define ev_malloc(size) ev_realloc (0, (size)) |
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351 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
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352 | |
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353 | /*****************************************************************************/ |
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354 | |
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355 | typedef struct |
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356 | { |
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357 | WL head; |
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358 | unsigned char events; |
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359 | unsigned char reify; |
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360 | #if EV_SELECT_IS_WINSOCKET |
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361 | SOCKET handle; |
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362 | #endif |
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363 | } ANFD; |
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364 | |
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365 | typedef struct |
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366 | { |
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367 | W w; |
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368 | int events; |
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369 | } ANPENDING; |
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370 | |
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371 | #if EV_USE_INOTIFY |
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372 | typedef struct |
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373 | { |
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374 | WL head; |
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375 | } ANFS; |
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376 | #endif |
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377 | |
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378 | #if EV_MULTIPLICITY |
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379 | |
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380 | struct ev_loop |
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381 | { |
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382 | ev_tstamp ev_rt_now; |
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383 | #define ev_rt_now ((loop)->ev_rt_now) |
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384 | #define VAR(name,decl) decl; |
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385 | #include "ev_vars.h" |
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386 | #undef VAR |
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387 | }; |
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388 | #include "ev_wrap.h" |
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389 | |
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390 | static struct ev_loop default_loop_struct; |
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391 | struct ev_loop *ev_default_loop_ptr; |
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392 | |
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393 | #else |
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394 | |
117 | ev_tstamp ev_now; |
395 | ev_tstamp ev_rt_now; |
118 | int ev_method; |
396 | #define VAR(name,decl) static decl; |
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397 | #include "ev_vars.h" |
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398 | #undef VAR |
119 | |
399 | |
120 | static int have_monotonic; /* runtime */ |
400 | static int ev_default_loop_ptr; |
121 | |
401 | |
122 | static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */ |
402 | #endif |
123 | static void (*method_modify)(int fd, int oev, int nev); |
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124 | static void (*method_poll)(ev_tstamp timeout); |
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125 | |
403 | |
126 | /*****************************************************************************/ |
404 | /*****************************************************************************/ |
127 | |
405 | |
128 | ev_tstamp |
406 | ev_tstamp |
129 | ev_time (void) |
407 | ev_time (void) |
… | |
… | |
137 | gettimeofday (&tv, 0); |
415 | gettimeofday (&tv, 0); |
138 | return tv.tv_sec + tv.tv_usec * 1e-6; |
416 | return tv.tv_sec + tv.tv_usec * 1e-6; |
139 | #endif |
417 | #endif |
140 | } |
418 | } |
141 | |
419 | |
142 | static ev_tstamp |
420 | ev_tstamp inline_size |
143 | get_clock (void) |
421 | get_clock (void) |
144 | { |
422 | { |
145 | #if EV_USE_MONOTONIC |
423 | #if EV_USE_MONOTONIC |
146 | if (expect_true (have_monotonic)) |
424 | if (expect_true (have_monotonic)) |
147 | { |
425 | { |
… | |
… | |
152 | #endif |
430 | #endif |
153 | |
431 | |
154 | return ev_time (); |
432 | return ev_time (); |
155 | } |
433 | } |
156 | |
434 | |
157 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
435 | #if EV_MULTIPLICITY |
|
|
436 | ev_tstamp |
|
|
437 | ev_now (EV_P) |
|
|
438 | { |
|
|
439 | return ev_rt_now; |
|
|
440 | } |
|
|
441 | #endif |
158 | |
442 | |
159 | #define array_needsize(base,cur,cnt,init) \ |
443 | void |
160 | if (expect_false ((cnt) > cur)) \ |
444 | ev_sleep (ev_tstamp delay) |
161 | { \ |
445 | { |
162 | int newcnt = cur; \ |
446 | if (delay > 0.) |
163 | do \ |
|
|
164 | { \ |
|
|
165 | newcnt = array_roundsize (base, newcnt << 1); \ |
|
|
166 | } \ |
|
|
167 | while ((cnt) > newcnt); \ |
|
|
168 | \ |
|
|
169 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
|
|
170 | init (base + cur, newcnt - cur); \ |
|
|
171 | cur = newcnt; \ |
|
|
172 | } |
447 | { |
|
|
448 | #if EV_USE_NANOSLEEP |
|
|
449 | struct timespec ts; |
|
|
450 | |
|
|
451 | ts.tv_sec = (time_t)delay; |
|
|
452 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
453 | |
|
|
454 | nanosleep (&ts, 0); |
|
|
455 | #elif defined(_WIN32) |
|
|
456 | Sleep (delay * 1e3); |
|
|
457 | #else |
|
|
458 | struct timeval tv; |
|
|
459 | |
|
|
460 | tv.tv_sec = (time_t)delay; |
|
|
461 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
462 | |
|
|
463 | select (0, 0, 0, 0, &tv); |
|
|
464 | #endif |
|
|
465 | } |
|
|
466 | } |
173 | |
467 | |
174 | /*****************************************************************************/ |
468 | /*****************************************************************************/ |
175 | |
469 | |
176 | typedef struct |
470 | int inline_size |
|
|
471 | array_nextsize (int elem, int cur, int cnt) |
177 | { |
472 | { |
178 | struct ev_io *head; |
473 | int ncur = cur + 1; |
179 | unsigned char events; |
|
|
180 | unsigned char reify; |
|
|
181 | } ANFD; |
|
|
182 | |
474 | |
183 | static ANFD *anfds; |
475 | do |
184 | static int anfdmax; |
476 | ncur <<= 1; |
|
|
477 | while (cnt > ncur); |
185 | |
478 | |
186 | static void |
479 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
|
|
480 | if (elem * ncur > 4096) |
|
|
481 | { |
|
|
482 | ncur *= elem; |
|
|
483 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
|
|
484 | ncur = ncur - sizeof (void *) * 4; |
|
|
485 | ncur /= elem; |
|
|
486 | } |
|
|
487 | |
|
|
488 | return ncur; |
|
|
489 | } |
|
|
490 | |
|
|
491 | static noinline void * |
|
|
492 | array_realloc (int elem, void *base, int *cur, int cnt) |
|
|
493 | { |
|
|
494 | *cur = array_nextsize (elem, *cur, cnt); |
|
|
495 | return ev_realloc (base, elem * *cur); |
|
|
496 | } |
|
|
497 | |
|
|
498 | #define array_needsize(type,base,cur,cnt,init) \ |
|
|
499 | if (expect_false ((cnt) > (cur))) \ |
|
|
500 | { \ |
|
|
501 | int ocur_ = (cur); \ |
|
|
502 | (base) = (type *)array_realloc \ |
|
|
503 | (sizeof (type), (base), &(cur), (cnt)); \ |
|
|
504 | init ((base) + (ocur_), (cur) - ocur_); \ |
|
|
505 | } |
|
|
506 | |
|
|
507 | #if 0 |
|
|
508 | #define array_slim(type,stem) \ |
|
|
509 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
|
|
510 | { \ |
|
|
511 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
|
|
512 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
|
|
513 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
|
|
514 | } |
|
|
515 | #endif |
|
|
516 | |
|
|
517 | #define array_free(stem, idx) \ |
|
|
518 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
|
|
519 | |
|
|
520 | /*****************************************************************************/ |
|
|
521 | |
|
|
522 | void noinline |
|
|
523 | ev_feed_event (EV_P_ void *w, int revents) |
|
|
524 | { |
|
|
525 | W w_ = (W)w; |
|
|
526 | int pri = ABSPRI (w_); |
|
|
527 | |
|
|
528 | if (expect_false (w_->pending)) |
|
|
529 | pendings [pri][w_->pending - 1].events |= revents; |
|
|
530 | else |
|
|
531 | { |
|
|
532 | w_->pending = ++pendingcnt [pri]; |
|
|
533 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
|
|
534 | pendings [pri][w_->pending - 1].w = w_; |
|
|
535 | pendings [pri][w_->pending - 1].events = revents; |
|
|
536 | } |
|
|
537 | } |
|
|
538 | |
|
|
539 | void inline_speed |
|
|
540 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
541 | { |
|
|
542 | int i; |
|
|
543 | |
|
|
544 | for (i = 0; i < eventcnt; ++i) |
|
|
545 | ev_feed_event (EV_A_ events [i], type); |
|
|
546 | } |
|
|
547 | |
|
|
548 | /*****************************************************************************/ |
|
|
549 | |
|
|
550 | void inline_size |
187 | anfds_init (ANFD *base, int count) |
551 | anfds_init (ANFD *base, int count) |
188 | { |
552 | { |
189 | while (count--) |
553 | while (count--) |
190 | { |
554 | { |
191 | base->head = 0; |
555 | base->head = 0; |
… | |
… | |
194 | |
558 | |
195 | ++base; |
559 | ++base; |
196 | } |
560 | } |
197 | } |
561 | } |
198 | |
562 | |
199 | typedef struct |
563 | void inline_speed |
200 | { |
|
|
201 | W w; |
|
|
202 | int events; |
|
|
203 | } ANPENDING; |
|
|
204 | |
|
|
205 | static ANPENDING *pendings [NUMPRI]; |
|
|
206 | static int pendingmax [NUMPRI], pendingcnt [NUMPRI]; |
|
|
207 | |
|
|
208 | static void |
|
|
209 | event (W w, int events) |
|
|
210 | { |
|
|
211 | if (w->pending) |
|
|
212 | { |
|
|
213 | pendings [ABSPRI (w)][w->pending - 1].events |= events; |
|
|
214 | return; |
|
|
215 | } |
|
|
216 | |
|
|
217 | w->pending = ++pendingcnt [ABSPRI (w)]; |
|
|
218 | array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], ); |
|
|
219 | pendings [ABSPRI (w)][w->pending - 1].w = w; |
|
|
220 | pendings [ABSPRI (w)][w->pending - 1].events = events; |
|
|
221 | } |
|
|
222 | |
|
|
223 | static void |
|
|
224 | queue_events (W *events, int eventcnt, int type) |
|
|
225 | { |
|
|
226 | int i; |
|
|
227 | |
|
|
228 | for (i = 0; i < eventcnt; ++i) |
|
|
229 | event (events [i], type); |
|
|
230 | } |
|
|
231 | |
|
|
232 | static void |
|
|
233 | fd_event (int fd, int events) |
564 | fd_event (EV_P_ int fd, int revents) |
234 | { |
565 | { |
235 | ANFD *anfd = anfds + fd; |
566 | ANFD *anfd = anfds + fd; |
236 | struct ev_io *w; |
567 | ev_io *w; |
237 | |
568 | |
238 | for (w = anfd->head; w; w = w->next) |
569 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
239 | { |
570 | { |
240 | int ev = w->events & events; |
571 | int ev = w->events & revents; |
241 | |
572 | |
242 | if (ev) |
573 | if (ev) |
243 | event ((W)w, ev); |
574 | ev_feed_event (EV_A_ (W)w, ev); |
244 | } |
575 | } |
245 | } |
576 | } |
246 | |
577 | |
247 | /*****************************************************************************/ |
578 | void |
|
|
579 | ev_feed_fd_event (EV_P_ int fd, int revents) |
|
|
580 | { |
|
|
581 | if (fd >= 0 && fd < anfdmax) |
|
|
582 | fd_event (EV_A_ fd, revents); |
|
|
583 | } |
248 | |
584 | |
249 | static int *fdchanges; |
585 | void inline_size |
250 | static int fdchangemax, fdchangecnt; |
586 | fd_reify (EV_P) |
251 | |
|
|
252 | static void |
|
|
253 | fd_reify (void) |
|
|
254 | { |
587 | { |
255 | int i; |
588 | int i; |
256 | |
589 | |
257 | for (i = 0; i < fdchangecnt; ++i) |
590 | for (i = 0; i < fdchangecnt; ++i) |
258 | { |
591 | { |
259 | int fd = fdchanges [i]; |
592 | int fd = fdchanges [i]; |
260 | ANFD *anfd = anfds + fd; |
593 | ANFD *anfd = anfds + fd; |
261 | struct ev_io *w; |
594 | ev_io *w; |
262 | |
595 | |
263 | int events = 0; |
596 | unsigned char events = 0; |
264 | |
597 | |
265 | for (w = anfd->head; w; w = w->next) |
598 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
266 | events |= w->events; |
599 | events |= (unsigned char)w->events; |
267 | |
600 | |
268 | anfd->reify = 0; |
601 | #if EV_SELECT_IS_WINSOCKET |
269 | |
602 | if (events) |
270 | if (anfd->events != events) |
|
|
271 | { |
603 | { |
272 | method_modify (fd, anfd->events, events); |
604 | unsigned long argp; |
273 | anfd->events = events; |
605 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
606 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
607 | #else |
|
|
608 | anfd->handle = _get_osfhandle (fd); |
|
|
609 | #endif |
|
|
610 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
274 | } |
611 | } |
|
|
612 | #endif |
|
|
613 | |
|
|
614 | { |
|
|
615 | unsigned char o_events = anfd->events; |
|
|
616 | unsigned char o_reify = anfd->reify; |
|
|
617 | |
|
|
618 | anfd->reify = 0; |
|
|
619 | anfd->events = events; |
|
|
620 | |
|
|
621 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
622 | backend_modify (EV_A_ fd, o_events, events); |
|
|
623 | } |
275 | } |
624 | } |
276 | |
625 | |
277 | fdchangecnt = 0; |
626 | fdchangecnt = 0; |
278 | } |
627 | } |
279 | |
628 | |
280 | static void |
629 | void inline_size |
281 | fd_change (int fd) |
630 | fd_change (EV_P_ int fd, int flags) |
282 | { |
631 | { |
283 | if (anfds [fd].reify || fdchangecnt < 0) |
632 | unsigned char reify = anfds [fd].reify; |
284 | return; |
|
|
285 | |
|
|
286 | anfds [fd].reify = 1; |
633 | anfds [fd].reify |= flags; |
287 | |
634 | |
|
|
635 | if (expect_true (!reify)) |
|
|
636 | { |
288 | ++fdchangecnt; |
637 | ++fdchangecnt; |
289 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
638 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
290 | fdchanges [fdchangecnt - 1] = fd; |
639 | fdchanges [fdchangecnt - 1] = fd; |
|
|
640 | } |
291 | } |
641 | } |
292 | |
642 | |
293 | static void |
643 | void inline_speed |
294 | fd_kill (int fd) |
644 | fd_kill (EV_P_ int fd) |
295 | { |
645 | { |
296 | struct ev_io *w; |
646 | ev_io *w; |
297 | |
647 | |
298 | printf ("killing fd %d\n", fd);//D |
|
|
299 | while ((w = anfds [fd].head)) |
648 | while ((w = (ev_io *)anfds [fd].head)) |
300 | { |
649 | { |
301 | ev_io_stop (w); |
650 | ev_io_stop (EV_A_ w); |
302 | event ((W)w, EV_ERROR | EV_READ | EV_WRITE); |
651 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
303 | } |
652 | } |
|
|
653 | } |
|
|
654 | |
|
|
655 | int inline_size |
|
|
656 | fd_valid (int fd) |
|
|
657 | { |
|
|
658 | #ifdef _WIN32 |
|
|
659 | return _get_osfhandle (fd) != -1; |
|
|
660 | #else |
|
|
661 | return fcntl (fd, F_GETFD) != -1; |
|
|
662 | #endif |
304 | } |
663 | } |
305 | |
664 | |
306 | /* called on EBADF to verify fds */ |
665 | /* called on EBADF to verify fds */ |
307 | static void |
666 | static void noinline |
308 | fd_ebadf (void) |
667 | fd_ebadf (EV_P) |
309 | { |
668 | { |
310 | int fd; |
669 | int fd; |
311 | |
670 | |
312 | for (fd = 0; fd < anfdmax; ++fd) |
671 | for (fd = 0; fd < anfdmax; ++fd) |
313 | if (anfds [fd].events) |
672 | if (anfds [fd].events) |
314 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
673 | if (!fd_valid (fd) == -1 && errno == EBADF) |
315 | fd_kill (fd); |
674 | fd_kill (EV_A_ fd); |
316 | } |
675 | } |
317 | |
676 | |
318 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
677 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
319 | static void |
678 | static void noinline |
320 | fd_enomem (void) |
679 | fd_enomem (EV_P) |
321 | { |
680 | { |
322 | int fd = anfdmax; |
681 | int fd; |
323 | |
682 | |
324 | while (fd--) |
683 | for (fd = anfdmax; fd--; ) |
325 | if (anfds [fd].events) |
684 | if (anfds [fd].events) |
326 | { |
685 | { |
327 | close (fd); |
|
|
328 | fd_kill (fd); |
686 | fd_kill (EV_A_ fd); |
329 | return; |
687 | return; |
330 | } |
688 | } |
331 | } |
689 | } |
332 | |
690 | |
|
|
691 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
|
|
692 | static void noinline |
|
|
693 | fd_rearm_all (EV_P) |
|
|
694 | { |
|
|
695 | int fd; |
|
|
696 | |
|
|
697 | for (fd = 0; fd < anfdmax; ++fd) |
|
|
698 | if (anfds [fd].events) |
|
|
699 | { |
|
|
700 | anfds [fd].events = 0; |
|
|
701 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
|
|
702 | } |
|
|
703 | } |
|
|
704 | |
333 | /*****************************************************************************/ |
705 | /*****************************************************************************/ |
334 | |
706 | |
335 | static struct ev_timer **timers; |
707 | void inline_speed |
336 | static int timermax, timercnt; |
|
|
337 | |
|
|
338 | static struct ev_periodic **periodics; |
|
|
339 | static int periodicmax, periodiccnt; |
|
|
340 | |
|
|
341 | static void |
|
|
342 | upheap (WT *timers, int k) |
708 | upheap (WT *heap, int k) |
343 | { |
709 | { |
344 | WT w = timers [k]; |
710 | WT w = heap [k]; |
345 | |
711 | |
346 | while (k && timers [k >> 1]->at > w->at) |
712 | while (k) |
347 | { |
|
|
348 | timers [k] = timers [k >> 1]; |
|
|
349 | timers [k]->active = k + 1; |
|
|
350 | k >>= 1; |
|
|
351 | } |
713 | { |
352 | |
|
|
353 | timers [k] = w; |
|
|
354 | timers [k]->active = k + 1; |
|
|
355 | |
|
|
356 | } |
|
|
357 | |
|
|
358 | static void |
|
|
359 | downheap (WT *timers, int N, int k) |
|
|
360 | { |
|
|
361 | WT w = timers [k]; |
|
|
362 | |
|
|
363 | while (k < (N >> 1)) |
|
|
364 | { |
|
|
365 | int j = k << 1; |
714 | int p = (k - 1) >> 1; |
366 | |
715 | |
367 | if (j + 1 < N && timers [j]->at > timers [j + 1]->at) |
716 | if (heap [p]->at <= w->at) |
368 | ++j; |
|
|
369 | |
|
|
370 | if (w->at <= timers [j]->at) |
|
|
371 | break; |
717 | break; |
372 | |
718 | |
373 | timers [k] = timers [j]; |
719 | heap [k] = heap [p]; |
374 | timers [k]->active = k + 1; |
720 | ((W)heap [k])->active = k + 1; |
375 | k = j; |
721 | k = p; |
|
|
722 | } |
|
|
723 | |
|
|
724 | heap [k] = w; |
|
|
725 | ((W)heap [k])->active = k + 1; |
|
|
726 | } |
|
|
727 | |
|
|
728 | void inline_speed |
|
|
729 | downheap (WT *heap, int N, int k) |
|
|
730 | { |
|
|
731 | WT w = heap [k]; |
|
|
732 | |
|
|
733 | for (;;) |
376 | } |
734 | { |
|
|
735 | int c = (k << 1) + 1; |
377 | |
736 | |
|
|
737 | if (c >= N) |
|
|
738 | break; |
|
|
739 | |
|
|
740 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
741 | ? 1 : 0; |
|
|
742 | |
|
|
743 | if (w->at <= heap [c]->at) |
|
|
744 | break; |
|
|
745 | |
|
|
746 | heap [k] = heap [c]; |
|
|
747 | ((W)heap [k])->active = k + 1; |
|
|
748 | |
|
|
749 | k = c; |
|
|
750 | } |
|
|
751 | |
378 | timers [k] = w; |
752 | heap [k] = w; |
379 | timers [k]->active = k + 1; |
753 | ((W)heap [k])->active = k + 1; |
|
|
754 | } |
|
|
755 | |
|
|
756 | void inline_size |
|
|
757 | adjustheap (WT *heap, int N, int k) |
|
|
758 | { |
|
|
759 | upheap (heap, k); |
|
|
760 | downheap (heap, N, k); |
380 | } |
761 | } |
381 | |
762 | |
382 | /*****************************************************************************/ |
763 | /*****************************************************************************/ |
383 | |
764 | |
384 | typedef struct |
765 | typedef struct |
385 | { |
766 | { |
386 | struct ev_signal *head; |
767 | WL head; |
387 | sig_atomic_t volatile gotsig; |
768 | sig_atomic_t volatile gotsig; |
388 | } ANSIG; |
769 | } ANSIG; |
389 | |
770 | |
390 | static ANSIG *signals; |
771 | static ANSIG *signals; |
391 | static int signalmax; |
772 | static int signalmax; |
392 | |
773 | |
393 | static int sigpipe [2]; |
774 | static int sigpipe [2]; |
394 | static sig_atomic_t volatile gotsig; |
775 | static sig_atomic_t volatile gotsig; |
395 | static struct ev_io sigev; |
776 | static ev_io sigev; |
396 | |
777 | |
397 | static void |
778 | void inline_size |
398 | signals_init (ANSIG *base, int count) |
779 | signals_init (ANSIG *base, int count) |
399 | { |
780 | { |
400 | while (count--) |
781 | while (count--) |
401 | { |
782 | { |
402 | base->head = 0; |
783 | base->head = 0; |
… | |
… | |
407 | } |
788 | } |
408 | |
789 | |
409 | static void |
790 | static void |
410 | sighandler (int signum) |
791 | sighandler (int signum) |
411 | { |
792 | { |
|
|
793 | #if _WIN32 |
|
|
794 | signal (signum, sighandler); |
|
|
795 | #endif |
|
|
796 | |
412 | signals [signum - 1].gotsig = 1; |
797 | signals [signum - 1].gotsig = 1; |
413 | |
798 | |
414 | if (!gotsig) |
799 | if (!gotsig) |
415 | { |
800 | { |
|
|
801 | int old_errno = errno; |
416 | gotsig = 1; |
802 | gotsig = 1; |
417 | write (sigpipe [1], &signum, 1); |
803 | write (sigpipe [1], &signum, 1); |
|
|
804 | errno = old_errno; |
418 | } |
805 | } |
|
|
806 | } |
|
|
807 | |
|
|
808 | void noinline |
|
|
809 | ev_feed_signal_event (EV_P_ int signum) |
|
|
810 | { |
|
|
811 | WL w; |
|
|
812 | |
|
|
813 | #if EV_MULTIPLICITY |
|
|
814 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
815 | #endif |
|
|
816 | |
|
|
817 | --signum; |
|
|
818 | |
|
|
819 | if (signum < 0 || signum >= signalmax) |
|
|
820 | return; |
|
|
821 | |
|
|
822 | signals [signum].gotsig = 0; |
|
|
823 | |
|
|
824 | for (w = signals [signum].head; w; w = w->next) |
|
|
825 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
419 | } |
826 | } |
420 | |
827 | |
421 | static void |
828 | static void |
422 | sigcb (struct ev_io *iow, int revents) |
829 | sigcb (EV_P_ ev_io *iow, int revents) |
423 | { |
830 | { |
424 | struct ev_signal *w; |
|
|
425 | int signum; |
831 | int signum; |
426 | |
832 | |
427 | read (sigpipe [0], &revents, 1); |
833 | read (sigpipe [0], &revents, 1); |
428 | gotsig = 0; |
834 | gotsig = 0; |
429 | |
835 | |
430 | for (signum = signalmax; signum--; ) |
836 | for (signum = signalmax; signum--; ) |
431 | if (signals [signum].gotsig) |
837 | if (signals [signum].gotsig) |
|
|
838 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
839 | } |
|
|
840 | |
|
|
841 | void inline_speed |
|
|
842 | fd_intern (int fd) |
|
|
843 | { |
|
|
844 | #ifdef _WIN32 |
|
|
845 | int arg = 1; |
|
|
846 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
847 | #else |
|
|
848 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
849 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
850 | #endif |
|
|
851 | } |
|
|
852 | |
|
|
853 | static void noinline |
|
|
854 | siginit (EV_P) |
|
|
855 | { |
|
|
856 | fd_intern (sigpipe [0]); |
|
|
857 | fd_intern (sigpipe [1]); |
|
|
858 | |
|
|
859 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
860 | ev_io_start (EV_A_ &sigev); |
|
|
861 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
|
|
862 | } |
|
|
863 | |
|
|
864 | /*****************************************************************************/ |
|
|
865 | |
|
|
866 | static WL childs [EV_PID_HASHSIZE]; |
|
|
867 | |
|
|
868 | #ifndef _WIN32 |
|
|
869 | |
|
|
870 | static ev_signal childev; |
|
|
871 | |
|
|
872 | void inline_speed |
|
|
873 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
|
|
874 | { |
|
|
875 | ev_child *w; |
|
|
876 | |
|
|
877 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
878 | if (w->pid == pid || !w->pid) |
432 | { |
879 | { |
433 | signals [signum].gotsig = 0; |
880 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
434 | |
881 | w->rpid = pid; |
435 | for (w = signals [signum].head; w; w = w->next) |
882 | w->rstatus = status; |
436 | event ((W)w, EV_SIGNAL); |
883 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
437 | } |
884 | } |
438 | } |
885 | } |
439 | |
|
|
440 | static void |
|
|
441 | siginit (void) |
|
|
442 | { |
|
|
443 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
|
|
444 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
|
|
445 | |
|
|
446 | /* rather than sort out wether we really need nb, set it */ |
|
|
447 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
|
|
448 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
|
|
449 | |
|
|
450 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
451 | ev_io_start (&sigev); |
|
|
452 | } |
|
|
453 | |
|
|
454 | /*****************************************************************************/ |
|
|
455 | |
|
|
456 | static struct ev_idle **idles; |
|
|
457 | static int idlemax, idlecnt; |
|
|
458 | |
|
|
459 | static struct ev_prepare **prepares; |
|
|
460 | static int preparemax, preparecnt; |
|
|
461 | |
|
|
462 | static struct ev_check **checks; |
|
|
463 | static int checkmax, checkcnt; |
|
|
464 | |
|
|
465 | /*****************************************************************************/ |
|
|
466 | |
|
|
467 | static struct ev_child *childs [PID_HASHSIZE]; |
|
|
468 | static struct ev_signal childev; |
|
|
469 | |
886 | |
470 | #ifndef WCONTINUED |
887 | #ifndef WCONTINUED |
471 | # define WCONTINUED 0 |
888 | # define WCONTINUED 0 |
472 | #endif |
889 | #endif |
473 | |
890 | |
474 | static void |
891 | static void |
475 | childcb (struct ev_signal *sw, int revents) |
892 | childcb (EV_P_ ev_signal *sw, int revents) |
476 | { |
893 | { |
477 | struct ev_child *w; |
|
|
478 | int pid, status; |
894 | int pid, status; |
479 | |
895 | |
|
|
896 | /* some systems define WCONTINUED but then fail to support it (linux 2.4) */ |
480 | while ((pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)) != -1) |
897 | if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
481 | for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next) |
898 | if (!WCONTINUED |
482 | if (w->pid == pid || !w->pid) |
899 | || errno != EINVAL |
483 | { |
900 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
484 | w->status = status; |
901 | return; |
485 | event ((W)w, EV_CHILD); |
902 | |
486 | } |
903 | /* make sure we are called again until all childs have been reaped */ |
|
|
904 | /* we need to do it this way so that the callback gets called before we continue */ |
|
|
905 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
|
|
906 | |
|
|
907 | child_reap (EV_A_ sw, pid, pid, status); |
|
|
908 | if (EV_PID_HASHSIZE > 1) |
|
|
909 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
487 | } |
910 | } |
|
|
911 | |
|
|
912 | #endif |
488 | |
913 | |
489 | /*****************************************************************************/ |
914 | /*****************************************************************************/ |
490 | |
915 | |
|
|
916 | #if EV_USE_PORT |
|
|
917 | # include "ev_port.c" |
|
|
918 | #endif |
491 | #if EV_USE_KQUEUE |
919 | #if EV_USE_KQUEUE |
492 | # include "ev_kqueue.c" |
920 | # include "ev_kqueue.c" |
493 | #endif |
921 | #endif |
494 | #if EV_USE_EPOLL |
922 | #if EV_USE_EPOLL |
495 | # include "ev_epoll.c" |
923 | # include "ev_epoll.c" |
… | |
… | |
511 | ev_version_minor (void) |
939 | ev_version_minor (void) |
512 | { |
940 | { |
513 | return EV_VERSION_MINOR; |
941 | return EV_VERSION_MINOR; |
514 | } |
942 | } |
515 | |
943 | |
516 | /* return true if we are running with elevated privileges and ignore env variables */ |
944 | /* return true if we are running with elevated privileges and should ignore env variables */ |
517 | static int |
945 | int inline_size |
518 | enable_secure () |
946 | enable_secure (void) |
519 | { |
947 | { |
|
|
948 | #ifdef _WIN32 |
|
|
949 | return 0; |
|
|
950 | #else |
520 | return getuid () != geteuid () |
951 | return getuid () != geteuid () |
521 | || getgid () != getegid (); |
952 | || getgid () != getegid (); |
|
|
953 | #endif |
522 | } |
954 | } |
523 | |
955 | |
524 | int ev_init (int methods) |
956 | unsigned int |
|
|
957 | ev_supported_backends (void) |
525 | { |
958 | { |
526 | if (!ev_method) |
959 | unsigned int flags = 0; |
|
|
960 | |
|
|
961 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
|
|
962 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
|
|
963 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
964 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
965 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
|
|
966 | |
|
|
967 | return flags; |
|
|
968 | } |
|
|
969 | |
|
|
970 | unsigned int |
|
|
971 | ev_recommended_backends (void) |
|
|
972 | { |
|
|
973 | unsigned int flags = ev_supported_backends (); |
|
|
974 | |
|
|
975 | #ifndef __NetBSD__ |
|
|
976 | /* kqueue is borked on everything but netbsd apparently */ |
|
|
977 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
|
|
978 | flags &= ~EVBACKEND_KQUEUE; |
|
|
979 | #endif |
|
|
980 | #ifdef __APPLE__ |
|
|
981 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
|
|
982 | flags &= ~EVBACKEND_POLL; |
|
|
983 | #endif |
|
|
984 | |
|
|
985 | return flags; |
|
|
986 | } |
|
|
987 | |
|
|
988 | unsigned int |
|
|
989 | ev_embeddable_backends (void) |
|
|
990 | { |
|
|
991 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
|
|
992 | |
|
|
993 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
994 | /* please fix it and tell me how to detect the fix */ |
|
|
995 | flags &= ~EVBACKEND_EPOLL; |
|
|
996 | |
|
|
997 | return flags; |
|
|
998 | } |
|
|
999 | |
|
|
1000 | unsigned int |
|
|
1001 | ev_backend (EV_P) |
|
|
1002 | { |
|
|
1003 | return backend; |
|
|
1004 | } |
|
|
1005 | |
|
|
1006 | unsigned int |
|
|
1007 | ev_loop_count (EV_P) |
|
|
1008 | { |
|
|
1009 | return loop_count; |
|
|
1010 | } |
|
|
1011 | |
|
|
1012 | void |
|
|
1013 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1014 | { |
|
|
1015 | io_blocktime = interval; |
|
|
1016 | } |
|
|
1017 | |
|
|
1018 | void |
|
|
1019 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1020 | { |
|
|
1021 | timeout_blocktime = interval; |
|
|
1022 | } |
|
|
1023 | |
|
|
1024 | static void noinline |
|
|
1025 | loop_init (EV_P_ unsigned int flags) |
|
|
1026 | { |
|
|
1027 | if (!backend) |
527 | { |
1028 | { |
528 | #if EV_USE_MONOTONIC |
1029 | #if EV_USE_MONOTONIC |
529 | { |
1030 | { |
530 | struct timespec ts; |
1031 | struct timespec ts; |
531 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1032 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
532 | have_monotonic = 1; |
1033 | have_monotonic = 1; |
533 | } |
1034 | } |
534 | #endif |
1035 | #endif |
535 | |
1036 | |
536 | ev_now = ev_time (); |
1037 | ev_rt_now = ev_time (); |
537 | now = get_clock (); |
1038 | mn_now = get_clock (); |
538 | now_floor = now; |
1039 | now_floor = mn_now; |
539 | diff = ev_now - now; |
1040 | rtmn_diff = ev_rt_now - mn_now; |
540 | |
1041 | |
541 | if (pipe (sigpipe)) |
1042 | io_blocktime = 0.; |
542 | return 0; |
1043 | timeout_blocktime = 0.; |
543 | |
1044 | |
544 | if (methods == EVMETHOD_AUTO) |
1045 | /* pid check not overridable via env */ |
545 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
1046 | #ifndef _WIN32 |
|
|
1047 | if (flags & EVFLAG_FORKCHECK) |
|
|
1048 | curpid = getpid (); |
|
|
1049 | #endif |
|
|
1050 | |
|
|
1051 | if (!(flags & EVFLAG_NOENV) |
|
|
1052 | && !enable_secure () |
|
|
1053 | && getenv ("LIBEV_FLAGS")) |
546 | methods = atoi (getenv ("LIBEV_METHODS")); |
1054 | flags = atoi (getenv ("LIBEV_FLAGS")); |
547 | else |
|
|
548 | methods = EVMETHOD_ANY; |
|
|
549 | |
1055 | |
550 | ev_method = 0; |
1056 | if (!(flags & 0x0000ffffUL)) |
|
|
1057 | flags |= ev_recommended_backends (); |
|
|
1058 | |
|
|
1059 | backend = 0; |
|
|
1060 | backend_fd = -1; |
|
|
1061 | #if EV_USE_INOTIFY |
|
|
1062 | fs_fd = -2; |
|
|
1063 | #endif |
|
|
1064 | |
|
|
1065 | #if EV_USE_PORT |
|
|
1066 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
|
|
1067 | #endif |
551 | #if EV_USE_KQUEUE |
1068 | #if EV_USE_KQUEUE |
552 | if (!ev_method && (methods & EVMETHOD_KQUEUE)) kqueue_init (methods); |
1069 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
553 | #endif |
1070 | #endif |
554 | #if EV_USE_EPOLL |
1071 | #if EV_USE_EPOLL |
555 | if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods); |
1072 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
556 | #endif |
1073 | #endif |
557 | #if EV_USE_POLL |
1074 | #if EV_USE_POLL |
558 | if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods); |
1075 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
559 | #endif |
1076 | #endif |
560 | #if EV_USE_SELECT |
1077 | #if EV_USE_SELECT |
561 | if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods); |
1078 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
562 | #endif |
1079 | #endif |
563 | |
1080 | |
564 | if (ev_method) |
1081 | ev_init (&sigev, sigcb); |
|
|
1082 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
1083 | } |
|
|
1084 | } |
|
|
1085 | |
|
|
1086 | static void noinline |
|
|
1087 | loop_destroy (EV_P) |
|
|
1088 | { |
|
|
1089 | int i; |
|
|
1090 | |
|
|
1091 | #if EV_USE_INOTIFY |
|
|
1092 | if (fs_fd >= 0) |
|
|
1093 | close (fs_fd); |
|
|
1094 | #endif |
|
|
1095 | |
|
|
1096 | if (backend_fd >= 0) |
|
|
1097 | close (backend_fd); |
|
|
1098 | |
|
|
1099 | #if EV_USE_PORT |
|
|
1100 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
|
|
1101 | #endif |
|
|
1102 | #if EV_USE_KQUEUE |
|
|
1103 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
|
|
1104 | #endif |
|
|
1105 | #if EV_USE_EPOLL |
|
|
1106 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
|
|
1107 | #endif |
|
|
1108 | #if EV_USE_POLL |
|
|
1109 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
|
|
1110 | #endif |
|
|
1111 | #if EV_USE_SELECT |
|
|
1112 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
|
|
1113 | #endif |
|
|
1114 | |
|
|
1115 | for (i = NUMPRI; i--; ) |
|
|
1116 | { |
|
|
1117 | array_free (pending, [i]); |
|
|
1118 | #if EV_IDLE_ENABLE |
|
|
1119 | array_free (idle, [i]); |
|
|
1120 | #endif |
|
|
1121 | } |
|
|
1122 | |
|
|
1123 | ev_free (anfds); anfdmax = 0; |
|
|
1124 | |
|
|
1125 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1126 | array_free (fdchange, EMPTY); |
|
|
1127 | array_free (timer, EMPTY); |
|
|
1128 | #if EV_PERIODIC_ENABLE |
|
|
1129 | array_free (periodic, EMPTY); |
|
|
1130 | #endif |
|
|
1131 | #if EV_FORK_ENABLE |
|
|
1132 | array_free (fork, EMPTY); |
|
|
1133 | #endif |
|
|
1134 | array_free (prepare, EMPTY); |
|
|
1135 | array_free (check, EMPTY); |
|
|
1136 | |
|
|
1137 | backend = 0; |
|
|
1138 | } |
|
|
1139 | |
|
|
1140 | void inline_size infy_fork (EV_P); |
|
|
1141 | |
|
|
1142 | void inline_size |
|
|
1143 | loop_fork (EV_P) |
|
|
1144 | { |
|
|
1145 | #if EV_USE_PORT |
|
|
1146 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
|
|
1147 | #endif |
|
|
1148 | #if EV_USE_KQUEUE |
|
|
1149 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
|
|
1150 | #endif |
|
|
1151 | #if EV_USE_EPOLL |
|
|
1152 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
|
|
1153 | #endif |
|
|
1154 | #if EV_USE_INOTIFY |
|
|
1155 | infy_fork (EV_A); |
|
|
1156 | #endif |
|
|
1157 | |
|
|
1158 | if (ev_is_active (&sigev)) |
|
|
1159 | { |
|
|
1160 | /* default loop */ |
|
|
1161 | |
|
|
1162 | ev_ref (EV_A); |
|
|
1163 | ev_io_stop (EV_A_ &sigev); |
|
|
1164 | close (sigpipe [0]); |
|
|
1165 | close (sigpipe [1]); |
|
|
1166 | |
|
|
1167 | while (pipe (sigpipe)) |
|
|
1168 | syserr ("(libev) error creating pipe"); |
|
|
1169 | |
|
|
1170 | siginit (EV_A); |
|
|
1171 | sigcb (EV_A_ &sigev, EV_READ); |
|
|
1172 | } |
|
|
1173 | |
|
|
1174 | postfork = 0; |
|
|
1175 | } |
|
|
1176 | |
|
|
1177 | #if EV_MULTIPLICITY |
|
|
1178 | struct ev_loop * |
|
|
1179 | ev_loop_new (unsigned int flags) |
|
|
1180 | { |
|
|
1181 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
|
|
1182 | |
|
|
1183 | memset (loop, 0, sizeof (struct ev_loop)); |
|
|
1184 | |
|
|
1185 | loop_init (EV_A_ flags); |
|
|
1186 | |
|
|
1187 | if (ev_backend (EV_A)) |
|
|
1188 | return loop; |
|
|
1189 | |
|
|
1190 | return 0; |
|
|
1191 | } |
|
|
1192 | |
|
|
1193 | void |
|
|
1194 | ev_loop_destroy (EV_P) |
|
|
1195 | { |
|
|
1196 | loop_destroy (EV_A); |
|
|
1197 | ev_free (loop); |
|
|
1198 | } |
|
|
1199 | |
|
|
1200 | void |
|
|
1201 | ev_loop_fork (EV_P) |
|
|
1202 | { |
|
|
1203 | postfork = 1; |
|
|
1204 | } |
|
|
1205 | |
|
|
1206 | #endif |
|
|
1207 | |
|
|
1208 | #if EV_MULTIPLICITY |
|
|
1209 | struct ev_loop * |
|
|
1210 | ev_default_loop_init (unsigned int flags) |
|
|
1211 | #else |
|
|
1212 | int |
|
|
1213 | ev_default_loop (unsigned int flags) |
|
|
1214 | #endif |
|
|
1215 | { |
|
|
1216 | if (sigpipe [0] == sigpipe [1]) |
|
|
1217 | if (pipe (sigpipe)) |
|
|
1218 | return 0; |
|
|
1219 | |
|
|
1220 | if (!ev_default_loop_ptr) |
|
|
1221 | { |
|
|
1222 | #if EV_MULTIPLICITY |
|
|
1223 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
|
|
1224 | #else |
|
|
1225 | ev_default_loop_ptr = 1; |
|
|
1226 | #endif |
|
|
1227 | |
|
|
1228 | loop_init (EV_A_ flags); |
|
|
1229 | |
|
|
1230 | if (ev_backend (EV_A)) |
565 | { |
1231 | { |
566 | ev_watcher_init (&sigev, sigcb); |
|
|
567 | siginit (); |
1232 | siginit (EV_A); |
568 | |
1233 | |
|
|
1234 | #ifndef _WIN32 |
569 | ev_signal_init (&childev, childcb, SIGCHLD); |
1235 | ev_signal_init (&childev, childcb, SIGCHLD); |
|
|
1236 | ev_set_priority (&childev, EV_MAXPRI); |
570 | ev_signal_start (&childev); |
1237 | ev_signal_start (EV_A_ &childev); |
|
|
1238 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
|
|
1239 | #endif |
571 | } |
1240 | } |
|
|
1241 | else |
|
|
1242 | ev_default_loop_ptr = 0; |
572 | } |
1243 | } |
573 | |
1244 | |
574 | return ev_method; |
1245 | return ev_default_loop_ptr; |
|
|
1246 | } |
|
|
1247 | |
|
|
1248 | void |
|
|
1249 | ev_default_destroy (void) |
|
|
1250 | { |
|
|
1251 | #if EV_MULTIPLICITY |
|
|
1252 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1253 | #endif |
|
|
1254 | |
|
|
1255 | #ifndef _WIN32 |
|
|
1256 | ev_ref (EV_A); /* child watcher */ |
|
|
1257 | ev_signal_stop (EV_A_ &childev); |
|
|
1258 | #endif |
|
|
1259 | |
|
|
1260 | ev_ref (EV_A); /* signal watcher */ |
|
|
1261 | ev_io_stop (EV_A_ &sigev); |
|
|
1262 | |
|
|
1263 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1264 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1265 | |
|
|
1266 | loop_destroy (EV_A); |
|
|
1267 | } |
|
|
1268 | |
|
|
1269 | void |
|
|
1270 | ev_default_fork (void) |
|
|
1271 | { |
|
|
1272 | #if EV_MULTIPLICITY |
|
|
1273 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1274 | #endif |
|
|
1275 | |
|
|
1276 | if (backend) |
|
|
1277 | postfork = 1; |
575 | } |
1278 | } |
576 | |
1279 | |
577 | /*****************************************************************************/ |
1280 | /*****************************************************************************/ |
578 | |
1281 | |
579 | void |
1282 | void |
580 | ev_fork_prepare (void) |
1283 | ev_invoke (EV_P_ void *w, int revents) |
581 | { |
1284 | { |
582 | /* nop */ |
1285 | EV_CB_INVOKE ((W)w, revents); |
583 | } |
1286 | } |
584 | |
1287 | |
585 | void |
1288 | void inline_speed |
586 | ev_fork_parent (void) |
|
|
587 | { |
|
|
588 | /* nop */ |
|
|
589 | } |
|
|
590 | |
|
|
591 | void |
|
|
592 | ev_fork_child (void) |
|
|
593 | { |
|
|
594 | #if EV_USE_EPOLL |
|
|
595 | if (ev_method == EVMETHOD_EPOLL) |
|
|
596 | epoll_postfork_child (); |
|
|
597 | #endif |
|
|
598 | |
|
|
599 | ev_io_stop (&sigev); |
|
|
600 | close (sigpipe [0]); |
|
|
601 | close (sigpipe [1]); |
|
|
602 | pipe (sigpipe); |
|
|
603 | siginit (); |
|
|
604 | } |
|
|
605 | |
|
|
606 | /*****************************************************************************/ |
|
|
607 | |
|
|
608 | static void |
|
|
609 | call_pending (void) |
1289 | call_pending (EV_P) |
610 | { |
1290 | { |
611 | int pri; |
1291 | int pri; |
612 | |
1292 | |
613 | for (pri = NUMPRI; pri--; ) |
1293 | for (pri = NUMPRI; pri--; ) |
614 | while (pendingcnt [pri]) |
1294 | while (pendingcnt [pri]) |
615 | { |
1295 | { |
616 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1296 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
617 | |
1297 | |
618 | if (p->w) |
1298 | if (expect_true (p->w)) |
619 | { |
1299 | { |
|
|
1300 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1301 | |
620 | p->w->pending = 0; |
1302 | p->w->pending = 0; |
621 | p->w->cb (p->w, p->events); |
1303 | EV_CB_INVOKE (p->w, p->events); |
622 | } |
1304 | } |
623 | } |
1305 | } |
624 | } |
1306 | } |
625 | |
1307 | |
626 | static void |
1308 | void inline_size |
627 | timers_reify (void) |
1309 | timers_reify (EV_P) |
628 | { |
1310 | { |
629 | while (timercnt && timers [0]->at <= now) |
1311 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
630 | { |
1312 | { |
631 | struct ev_timer *w = timers [0]; |
1313 | ev_timer *w = (ev_timer *)timers [0]; |
|
|
1314 | |
|
|
1315 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
632 | |
1316 | |
633 | /* first reschedule or stop timer */ |
1317 | /* first reschedule or stop timer */ |
634 | if (w->repeat) |
1318 | if (w->repeat) |
635 | { |
1319 | { |
636 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1320 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1321 | |
637 | w->at = now + w->repeat; |
1322 | ((WT)w)->at += w->repeat; |
|
|
1323 | if (((WT)w)->at < mn_now) |
|
|
1324 | ((WT)w)->at = mn_now; |
|
|
1325 | |
638 | downheap ((WT *)timers, timercnt, 0); |
1326 | downheap (timers, timercnt, 0); |
639 | } |
1327 | } |
640 | else |
1328 | else |
641 | ev_timer_stop (w); /* nonrepeating: stop timer */ |
1329 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
642 | |
1330 | |
643 | event ((W)w, EV_TIMEOUT); |
1331 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
644 | } |
1332 | } |
645 | } |
1333 | } |
646 | |
1334 | |
647 | static void |
1335 | #if EV_PERIODIC_ENABLE |
|
|
1336 | void inline_size |
648 | periodics_reify (void) |
1337 | periodics_reify (EV_P) |
649 | { |
1338 | { |
650 | while (periodiccnt && periodics [0]->at <= ev_now) |
1339 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
651 | { |
1340 | { |
652 | struct ev_periodic *w = periodics [0]; |
1341 | ev_periodic *w = (ev_periodic *)periodics [0]; |
|
|
1342 | |
|
|
1343 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
653 | |
1344 | |
654 | /* first reschedule or stop timer */ |
1345 | /* first reschedule or stop timer */ |
655 | if (w->interval) |
1346 | if (w->reschedule_cb) |
656 | { |
1347 | { |
|
|
1348 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
|
|
1349 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1350 | downheap (periodics, periodiccnt, 0); |
|
|
1351 | } |
|
|
1352 | else if (w->interval) |
|
|
1353 | { |
657 | w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval; |
1354 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1355 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
658 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now)); |
1356 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
659 | downheap ((WT *)periodics, periodiccnt, 0); |
1357 | downheap (periodics, periodiccnt, 0); |
660 | } |
1358 | } |
661 | else |
1359 | else |
662 | ev_periodic_stop (w); /* nonrepeating: stop timer */ |
1360 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
663 | |
1361 | |
664 | event ((W)w, EV_PERIODIC); |
1362 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
665 | } |
1363 | } |
666 | } |
1364 | } |
667 | |
1365 | |
668 | static void |
1366 | static void noinline |
669 | periodics_reschedule (ev_tstamp diff) |
1367 | periodics_reschedule (EV_P) |
670 | { |
1368 | { |
671 | int i; |
1369 | int i; |
672 | |
1370 | |
673 | /* adjust periodics after time jump */ |
1371 | /* adjust periodics after time jump */ |
674 | for (i = 0; i < periodiccnt; ++i) |
1372 | for (i = 0; i < periodiccnt; ++i) |
675 | { |
1373 | { |
676 | struct ev_periodic *w = periodics [i]; |
1374 | ev_periodic *w = (ev_periodic *)periodics [i]; |
677 | |
1375 | |
|
|
1376 | if (w->reschedule_cb) |
|
|
1377 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
678 | if (w->interval) |
1378 | else if (w->interval) |
|
|
1379 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1380 | } |
|
|
1381 | |
|
|
1382 | /* now rebuild the heap */ |
|
|
1383 | for (i = periodiccnt >> 1; i--; ) |
|
|
1384 | downheap (periodics, periodiccnt, i); |
|
|
1385 | } |
|
|
1386 | #endif |
|
|
1387 | |
|
|
1388 | #if EV_IDLE_ENABLE |
|
|
1389 | void inline_size |
|
|
1390 | idle_reify (EV_P) |
|
|
1391 | { |
|
|
1392 | if (expect_false (idleall)) |
|
|
1393 | { |
|
|
1394 | int pri; |
|
|
1395 | |
|
|
1396 | for (pri = NUMPRI; pri--; ) |
679 | { |
1397 | { |
680 | ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval; |
1398 | if (pendingcnt [pri]) |
|
|
1399 | break; |
681 | |
1400 | |
682 | if (fabs (diff) >= 1e-4) |
1401 | if (idlecnt [pri]) |
683 | { |
1402 | { |
684 | ev_periodic_stop (w); |
1403 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
685 | ev_periodic_start (w); |
1404 | break; |
686 | |
|
|
687 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
|
|
688 | } |
1405 | } |
689 | } |
1406 | } |
690 | } |
1407 | } |
691 | } |
1408 | } |
|
|
1409 | #endif |
692 | |
1410 | |
693 | static int |
1411 | void inline_speed |
694 | time_update_monotonic (void) |
1412 | time_update (EV_P_ ev_tstamp max_block) |
695 | { |
|
|
696 | now = get_clock (); |
|
|
697 | |
|
|
698 | if (expect_true (now - now_floor < MIN_TIMEJUMP * .5)) |
|
|
699 | { |
|
|
700 | ev_now = now + diff; |
|
|
701 | return 0; |
|
|
702 | } |
|
|
703 | else |
|
|
704 | { |
|
|
705 | now_floor = now; |
|
|
706 | ev_now = ev_time (); |
|
|
707 | return 1; |
|
|
708 | } |
|
|
709 | } |
|
|
710 | |
|
|
711 | static void |
|
|
712 | time_update (void) |
|
|
713 | { |
1413 | { |
714 | int i; |
1414 | int i; |
715 | |
1415 | |
716 | #if EV_USE_MONOTONIC |
1416 | #if EV_USE_MONOTONIC |
717 | if (expect_true (have_monotonic)) |
1417 | if (expect_true (have_monotonic)) |
718 | { |
1418 | { |
719 | if (time_update_monotonic ()) |
1419 | ev_tstamp odiff = rtmn_diff; |
|
|
1420 | |
|
|
1421 | mn_now = get_clock (); |
|
|
1422 | |
|
|
1423 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
1424 | /* interpolate in the meantime */ |
|
|
1425 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
720 | { |
1426 | { |
721 | ev_tstamp odiff = diff; |
1427 | ev_rt_now = rtmn_diff + mn_now; |
722 | |
1428 | return; |
723 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
|
|
724 | { |
|
|
725 | diff = ev_now - now; |
|
|
726 | |
|
|
727 | if (fabs (odiff - diff) < MIN_TIMEJUMP) |
|
|
728 | return; /* all is well */ |
|
|
729 | |
|
|
730 | ev_now = ev_time (); |
|
|
731 | now = get_clock (); |
|
|
732 | now_floor = now; |
|
|
733 | } |
|
|
734 | |
|
|
735 | periodics_reschedule (diff - odiff); |
|
|
736 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
737 | } |
1429 | } |
|
|
1430 | |
|
|
1431 | now_floor = mn_now; |
|
|
1432 | ev_rt_now = ev_time (); |
|
|
1433 | |
|
|
1434 | /* loop a few times, before making important decisions. |
|
|
1435 | * on the choice of "4": one iteration isn't enough, |
|
|
1436 | * in case we get preempted during the calls to |
|
|
1437 | * ev_time and get_clock. a second call is almost guaranteed |
|
|
1438 | * to succeed in that case, though. and looping a few more times |
|
|
1439 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1440 | * in the unlikely event of having been preempted here. |
|
|
1441 | */ |
|
|
1442 | for (i = 4; --i; ) |
|
|
1443 | { |
|
|
1444 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1445 | |
|
|
1446 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
|
|
1447 | return; /* all is well */ |
|
|
1448 | |
|
|
1449 | ev_rt_now = ev_time (); |
|
|
1450 | mn_now = get_clock (); |
|
|
1451 | now_floor = mn_now; |
|
|
1452 | } |
|
|
1453 | |
|
|
1454 | # if EV_PERIODIC_ENABLE |
|
|
1455 | periodics_reschedule (EV_A); |
|
|
1456 | # endif |
|
|
1457 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1458 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
738 | } |
1459 | } |
739 | else |
1460 | else |
740 | #endif |
1461 | #endif |
741 | { |
1462 | { |
742 | ev_now = ev_time (); |
1463 | ev_rt_now = ev_time (); |
743 | |
1464 | |
744 | if (expect_false (now > ev_now || now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1465 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
745 | { |
1466 | { |
|
|
1467 | #if EV_PERIODIC_ENABLE |
746 | periodics_reschedule (ev_now - now); |
1468 | periodics_reschedule (EV_A); |
747 | |
1469 | #endif |
748 | /* adjust timers. this is easy, as the offset is the same for all */ |
1470 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
749 | for (i = 0; i < timercnt; ++i) |
1471 | for (i = 0; i < timercnt; ++i) |
750 | timers [i]->at += diff; |
1472 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
751 | } |
1473 | } |
752 | |
1474 | |
753 | now = ev_now; |
1475 | mn_now = ev_rt_now; |
754 | } |
1476 | } |
755 | } |
1477 | } |
756 | |
1478 | |
757 | int ev_loop_done; |
1479 | void |
|
|
1480 | ev_ref (EV_P) |
|
|
1481 | { |
|
|
1482 | ++activecnt; |
|
|
1483 | } |
758 | |
1484 | |
|
|
1485 | void |
|
|
1486 | ev_unref (EV_P) |
|
|
1487 | { |
|
|
1488 | --activecnt; |
|
|
1489 | } |
|
|
1490 | |
|
|
1491 | static int loop_done; |
|
|
1492 | |
|
|
1493 | void |
759 | void ev_loop (int flags) |
1494 | ev_loop (EV_P_ int flags) |
760 | { |
1495 | { |
761 | double block; |
|
|
762 | ev_loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
1496 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
|
|
1497 | ? EVUNLOOP_ONE |
|
|
1498 | : EVUNLOOP_CANCEL; |
|
|
1499 | |
|
|
1500 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
763 | |
1501 | |
764 | do |
1502 | do |
765 | { |
1503 | { |
|
|
1504 | #ifndef _WIN32 |
|
|
1505 | if (expect_false (curpid)) /* penalise the forking check even more */ |
|
|
1506 | if (expect_false (getpid () != curpid)) |
|
|
1507 | { |
|
|
1508 | curpid = getpid (); |
|
|
1509 | postfork = 1; |
|
|
1510 | } |
|
|
1511 | #endif |
|
|
1512 | |
|
|
1513 | #if EV_FORK_ENABLE |
|
|
1514 | /* we might have forked, so queue fork handlers */ |
|
|
1515 | if (expect_false (postfork)) |
|
|
1516 | if (forkcnt) |
|
|
1517 | { |
|
|
1518 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
|
|
1519 | call_pending (EV_A); |
|
|
1520 | } |
|
|
1521 | #endif |
|
|
1522 | |
766 | /* queue check watchers (and execute them) */ |
1523 | /* queue prepare watchers (and execute them) */ |
767 | if (expect_false (preparecnt)) |
1524 | if (expect_false (preparecnt)) |
768 | { |
1525 | { |
769 | queue_events ((W *)prepares, preparecnt, EV_PREPARE); |
1526 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
770 | call_pending (); |
1527 | call_pending (EV_A); |
771 | } |
1528 | } |
772 | |
1529 | |
|
|
1530 | if (expect_false (!activecnt)) |
|
|
1531 | break; |
|
|
1532 | |
|
|
1533 | /* we might have forked, so reify kernel state if necessary */ |
|
|
1534 | if (expect_false (postfork)) |
|
|
1535 | loop_fork (EV_A); |
|
|
1536 | |
773 | /* update fd-related kernel structures */ |
1537 | /* update fd-related kernel structures */ |
774 | fd_reify (); |
1538 | fd_reify (EV_A); |
775 | |
1539 | |
776 | /* calculate blocking time */ |
1540 | /* calculate blocking time */ |
|
|
1541 | { |
|
|
1542 | ev_tstamp waittime = 0.; |
|
|
1543 | ev_tstamp sleeptime = 0.; |
777 | |
1544 | |
778 | /* we only need this for !monotonic clockor timers, but as we basically |
1545 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
779 | always have timers, we just calculate it always */ |
|
|
780 | #if EV_USE_MONOTONIC |
|
|
781 | if (expect_true (have_monotonic)) |
|
|
782 | time_update_monotonic (); |
|
|
783 | else |
|
|
784 | #endif |
|
|
785 | { |
1546 | { |
786 | ev_now = ev_time (); |
1547 | /* update time to cancel out callback processing overhead */ |
787 | now = ev_now; |
1548 | time_update (EV_A_ 1e100); |
788 | } |
|
|
789 | |
1549 | |
790 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
|
|
791 | block = 0.; |
|
|
792 | else |
|
|
793 | { |
|
|
794 | block = MAX_BLOCKTIME; |
1550 | waittime = MAX_BLOCKTIME; |
795 | |
1551 | |
796 | if (timercnt) |
1552 | if (timercnt) |
797 | { |
1553 | { |
798 | ev_tstamp to = timers [0]->at - now + method_fudge; |
1554 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
799 | if (block > to) block = to; |
1555 | if (waittime > to) waittime = to; |
800 | } |
1556 | } |
801 | |
1557 | |
|
|
1558 | #if EV_PERIODIC_ENABLE |
802 | if (periodiccnt) |
1559 | if (periodiccnt) |
803 | { |
1560 | { |
804 | ev_tstamp to = periodics [0]->at - ev_now + method_fudge; |
1561 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
805 | if (block > to) block = to; |
1562 | if (waittime > to) waittime = to; |
806 | } |
1563 | } |
|
|
1564 | #endif |
807 | |
1565 | |
808 | if (block < 0.) block = 0.; |
1566 | if (expect_false (waittime < timeout_blocktime)) |
|
|
1567 | waittime = timeout_blocktime; |
|
|
1568 | |
|
|
1569 | sleeptime = waittime - backend_fudge; |
|
|
1570 | |
|
|
1571 | if (expect_true (sleeptime > io_blocktime)) |
|
|
1572 | sleeptime = io_blocktime; |
|
|
1573 | |
|
|
1574 | if (sleeptime) |
|
|
1575 | { |
|
|
1576 | ev_sleep (sleeptime); |
|
|
1577 | waittime -= sleeptime; |
|
|
1578 | } |
809 | } |
1579 | } |
810 | |
1580 | |
811 | method_poll (block); |
1581 | ++loop_count; |
|
|
1582 | backend_poll (EV_A_ waittime); |
812 | |
1583 | |
813 | /* update ev_now, do magic */ |
1584 | /* update ev_rt_now, do magic */ |
814 | time_update (); |
1585 | time_update (EV_A_ waittime + sleeptime); |
|
|
1586 | } |
815 | |
1587 | |
816 | /* queue pending timers and reschedule them */ |
1588 | /* queue pending timers and reschedule them */ |
817 | timers_reify (); /* relative timers called last */ |
1589 | timers_reify (EV_A); /* relative timers called last */ |
|
|
1590 | #if EV_PERIODIC_ENABLE |
818 | periodics_reify (); /* absolute timers called first */ |
1591 | periodics_reify (EV_A); /* absolute timers called first */ |
|
|
1592 | #endif |
819 | |
1593 | |
|
|
1594 | #if EV_IDLE_ENABLE |
820 | /* queue idle watchers unless io or timers are pending */ |
1595 | /* queue idle watchers unless other events are pending */ |
821 | if (!pendingcnt) |
1596 | idle_reify (EV_A); |
822 | queue_events ((W *)idles, idlecnt, EV_IDLE); |
1597 | #endif |
823 | |
1598 | |
824 | /* queue check watchers, to be executed first */ |
1599 | /* queue check watchers, to be executed first */ |
825 | if (checkcnt) |
1600 | if (expect_false (checkcnt)) |
826 | queue_events ((W *)checks, checkcnt, EV_CHECK); |
1601 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
827 | |
1602 | |
828 | call_pending (); |
1603 | call_pending (EV_A); |
829 | } |
|
|
830 | while (!ev_loop_done); |
|
|
831 | |
1604 | |
832 | if (ev_loop_done != 2) |
1605 | } |
|
|
1606 | while (expect_true (activecnt && !loop_done)); |
|
|
1607 | |
|
|
1608 | if (loop_done == EVUNLOOP_ONE) |
|
|
1609 | loop_done = EVUNLOOP_CANCEL; |
|
|
1610 | } |
|
|
1611 | |
|
|
1612 | void |
|
|
1613 | ev_unloop (EV_P_ int how) |
|
|
1614 | { |
833 | ev_loop_done = 0; |
1615 | loop_done = how; |
834 | } |
1616 | } |
835 | |
1617 | |
836 | /*****************************************************************************/ |
1618 | /*****************************************************************************/ |
837 | |
1619 | |
838 | static void |
1620 | void inline_size |
839 | wlist_add (WL *head, WL elem) |
1621 | wlist_add (WL *head, WL elem) |
840 | { |
1622 | { |
841 | elem->next = *head; |
1623 | elem->next = *head; |
842 | *head = elem; |
1624 | *head = elem; |
843 | } |
1625 | } |
844 | |
1626 | |
845 | static void |
1627 | void inline_size |
846 | wlist_del (WL *head, WL elem) |
1628 | wlist_del (WL *head, WL elem) |
847 | { |
1629 | { |
848 | while (*head) |
1630 | while (*head) |
849 | { |
1631 | { |
850 | if (*head == elem) |
1632 | if (*head == elem) |
… | |
… | |
855 | |
1637 | |
856 | head = &(*head)->next; |
1638 | head = &(*head)->next; |
857 | } |
1639 | } |
858 | } |
1640 | } |
859 | |
1641 | |
860 | static void |
1642 | void inline_speed |
861 | ev_clear_pending (W w) |
1643 | clear_pending (EV_P_ W w) |
862 | { |
1644 | { |
863 | if (w->pending) |
1645 | if (w->pending) |
864 | { |
1646 | { |
865 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1647 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
866 | w->pending = 0; |
1648 | w->pending = 0; |
867 | } |
1649 | } |
868 | } |
1650 | } |
869 | |
1651 | |
870 | static void |
1652 | int |
|
|
1653 | ev_clear_pending (EV_P_ void *w) |
|
|
1654 | { |
|
|
1655 | W w_ = (W)w; |
|
|
1656 | int pending = w_->pending; |
|
|
1657 | |
|
|
1658 | if (expect_true (pending)) |
|
|
1659 | { |
|
|
1660 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
1661 | w_->pending = 0; |
|
|
1662 | p->w = 0; |
|
|
1663 | return p->events; |
|
|
1664 | } |
|
|
1665 | else |
|
|
1666 | return 0; |
|
|
1667 | } |
|
|
1668 | |
|
|
1669 | void inline_size |
|
|
1670 | pri_adjust (EV_P_ W w) |
|
|
1671 | { |
|
|
1672 | int pri = w->priority; |
|
|
1673 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
|
|
1674 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
|
|
1675 | w->priority = pri; |
|
|
1676 | } |
|
|
1677 | |
|
|
1678 | void inline_speed |
871 | ev_start (W w, int active) |
1679 | ev_start (EV_P_ W w, int active) |
872 | { |
1680 | { |
873 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
1681 | pri_adjust (EV_A_ w); |
874 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
875 | |
|
|
876 | w->active = active; |
1682 | w->active = active; |
|
|
1683 | ev_ref (EV_A); |
877 | } |
1684 | } |
878 | |
1685 | |
879 | static void |
1686 | void inline_size |
880 | ev_stop (W w) |
1687 | ev_stop (EV_P_ W w) |
881 | { |
1688 | { |
|
|
1689 | ev_unref (EV_A); |
882 | w->active = 0; |
1690 | w->active = 0; |
883 | } |
1691 | } |
884 | |
1692 | |
885 | /*****************************************************************************/ |
1693 | /*****************************************************************************/ |
886 | |
1694 | |
887 | void |
1695 | void noinline |
888 | ev_io_start (struct ev_io *w) |
1696 | ev_io_start (EV_P_ ev_io *w) |
889 | { |
1697 | { |
890 | int fd = w->fd; |
1698 | int fd = w->fd; |
891 | |
1699 | |
892 | if (ev_is_active (w)) |
1700 | if (expect_false (ev_is_active (w))) |
893 | return; |
1701 | return; |
894 | |
1702 | |
895 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1703 | assert (("ev_io_start called with negative fd", fd >= 0)); |
896 | |
1704 | |
897 | ev_start ((W)w, 1); |
1705 | ev_start (EV_A_ (W)w, 1); |
898 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
1706 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
899 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1707 | wlist_add (&anfds[fd].head, (WL)w); |
900 | |
1708 | |
901 | fd_change (fd); |
1709 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
|
|
1710 | w->events &= ~EV_IOFDSET; |
902 | } |
1711 | } |
903 | |
1712 | |
904 | void |
1713 | void noinline |
905 | ev_io_stop (struct ev_io *w) |
1714 | ev_io_stop (EV_P_ ev_io *w) |
906 | { |
1715 | { |
907 | ev_clear_pending ((W)w); |
1716 | clear_pending (EV_A_ (W)w); |
908 | if (!ev_is_active (w)) |
1717 | if (expect_false (!ev_is_active (w))) |
909 | return; |
1718 | return; |
910 | |
1719 | |
|
|
1720 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
1721 | |
911 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1722 | wlist_del (&anfds[w->fd].head, (WL)w); |
912 | ev_stop ((W)w); |
1723 | ev_stop (EV_A_ (W)w); |
913 | |
1724 | |
914 | fd_change (w->fd); |
1725 | fd_change (EV_A_ w->fd, 1); |
915 | } |
1726 | } |
916 | |
1727 | |
917 | void |
1728 | void noinline |
918 | ev_timer_start (struct ev_timer *w) |
1729 | ev_timer_start (EV_P_ ev_timer *w) |
919 | { |
1730 | { |
920 | if (ev_is_active (w)) |
1731 | if (expect_false (ev_is_active (w))) |
921 | return; |
1732 | return; |
922 | |
1733 | |
923 | w->at += now; |
1734 | ((WT)w)->at += mn_now; |
924 | |
1735 | |
925 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1736 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
926 | |
1737 | |
927 | ev_start ((W)w, ++timercnt); |
1738 | ev_start (EV_A_ (W)w, ++timercnt); |
928 | array_needsize (timers, timermax, timercnt, ); |
1739 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
929 | timers [timercnt - 1] = w; |
1740 | timers [timercnt - 1] = (WT)w; |
930 | upheap ((WT *)timers, timercnt - 1); |
1741 | upheap (timers, timercnt - 1); |
931 | } |
|
|
932 | |
1742 | |
933 | void |
1743 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
|
|
1744 | } |
|
|
1745 | |
|
|
1746 | void noinline |
934 | ev_timer_stop (struct ev_timer *w) |
1747 | ev_timer_stop (EV_P_ ev_timer *w) |
935 | { |
1748 | { |
936 | ev_clear_pending ((W)w); |
1749 | clear_pending (EV_A_ (W)w); |
937 | if (!ev_is_active (w)) |
1750 | if (expect_false (!ev_is_active (w))) |
938 | return; |
1751 | return; |
939 | |
1752 | |
940 | if (w->active < timercnt--) |
1753 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
|
|
1754 | |
|
|
1755 | { |
|
|
1756 | int active = ((W)w)->active; |
|
|
1757 | |
|
|
1758 | if (expect_true (--active < --timercnt)) |
941 | { |
1759 | { |
942 | timers [w->active - 1] = timers [timercnt]; |
1760 | timers [active] = timers [timercnt]; |
943 | downheap ((WT *)timers, timercnt, w->active - 1); |
1761 | adjustheap (timers, timercnt, active); |
944 | } |
1762 | } |
|
|
1763 | } |
945 | |
1764 | |
946 | w->at = w->repeat; |
1765 | ((WT)w)->at -= mn_now; |
947 | |
1766 | |
948 | ev_stop ((W)w); |
1767 | ev_stop (EV_A_ (W)w); |
949 | } |
1768 | } |
950 | |
1769 | |
951 | void |
1770 | void noinline |
952 | ev_timer_again (struct ev_timer *w) |
1771 | ev_timer_again (EV_P_ ev_timer *w) |
953 | { |
1772 | { |
954 | if (ev_is_active (w)) |
1773 | if (ev_is_active (w)) |
955 | { |
1774 | { |
956 | if (w->repeat) |
1775 | if (w->repeat) |
957 | { |
1776 | { |
958 | w->at = now + w->repeat; |
1777 | ((WT)w)->at = mn_now + w->repeat; |
959 | downheap ((WT *)timers, timercnt, w->active - 1); |
1778 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
960 | } |
1779 | } |
961 | else |
1780 | else |
962 | ev_timer_stop (w); |
1781 | ev_timer_stop (EV_A_ w); |
963 | } |
1782 | } |
964 | else if (w->repeat) |
1783 | else if (w->repeat) |
|
|
1784 | { |
|
|
1785 | w->at = w->repeat; |
965 | ev_timer_start (w); |
1786 | ev_timer_start (EV_A_ w); |
|
|
1787 | } |
966 | } |
1788 | } |
967 | |
1789 | |
968 | void |
1790 | #if EV_PERIODIC_ENABLE |
|
|
1791 | void noinline |
969 | ev_periodic_start (struct ev_periodic *w) |
1792 | ev_periodic_start (EV_P_ ev_periodic *w) |
970 | { |
1793 | { |
971 | if (ev_is_active (w)) |
1794 | if (expect_false (ev_is_active (w))) |
972 | return; |
1795 | return; |
973 | |
1796 | |
|
|
1797 | if (w->reschedule_cb) |
|
|
1798 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1799 | else if (w->interval) |
|
|
1800 | { |
974 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1801 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
975 | |
|
|
976 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1802 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
977 | if (w->interval) |
|
|
978 | w->at += ceil ((ev_now - w->at) / w->interval) * w->interval; |
1803 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1804 | } |
|
|
1805 | else |
|
|
1806 | ((WT)w)->at = w->offset; |
979 | |
1807 | |
980 | ev_start ((W)w, ++periodiccnt); |
1808 | ev_start (EV_A_ (W)w, ++periodiccnt); |
981 | array_needsize (periodics, periodicmax, periodiccnt, ); |
1809 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
982 | periodics [periodiccnt - 1] = w; |
1810 | periodics [periodiccnt - 1] = (WT)w; |
983 | upheap ((WT *)periodics, periodiccnt - 1); |
1811 | upheap (periodics, periodiccnt - 1); |
984 | } |
|
|
985 | |
1812 | |
986 | void |
1813 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
|
|
1814 | } |
|
|
1815 | |
|
|
1816 | void noinline |
987 | ev_periodic_stop (struct ev_periodic *w) |
1817 | ev_periodic_stop (EV_P_ ev_periodic *w) |
988 | { |
1818 | { |
989 | ev_clear_pending ((W)w); |
1819 | clear_pending (EV_A_ (W)w); |
990 | if (!ev_is_active (w)) |
1820 | if (expect_false (!ev_is_active (w))) |
991 | return; |
1821 | return; |
992 | |
1822 | |
993 | if (w->active < periodiccnt--) |
1823 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
|
|
1824 | |
|
|
1825 | { |
|
|
1826 | int active = ((W)w)->active; |
|
|
1827 | |
|
|
1828 | if (expect_true (--active < --periodiccnt)) |
994 | { |
1829 | { |
995 | periodics [w->active - 1] = periodics [periodiccnt]; |
1830 | periodics [active] = periodics [periodiccnt]; |
996 | downheap ((WT *)periodics, periodiccnt, w->active - 1); |
1831 | adjustheap (periodics, periodiccnt, active); |
997 | } |
1832 | } |
|
|
1833 | } |
998 | |
1834 | |
999 | ev_stop ((W)w); |
1835 | ev_stop (EV_A_ (W)w); |
1000 | } |
1836 | } |
1001 | |
1837 | |
1002 | void |
1838 | void noinline |
|
|
1839 | ev_periodic_again (EV_P_ ev_periodic *w) |
|
|
1840 | { |
|
|
1841 | /* TODO: use adjustheap and recalculation */ |
|
|
1842 | ev_periodic_stop (EV_A_ w); |
|
|
1843 | ev_periodic_start (EV_A_ w); |
|
|
1844 | } |
|
|
1845 | #endif |
|
|
1846 | |
|
|
1847 | #ifndef SA_RESTART |
|
|
1848 | # define SA_RESTART 0 |
|
|
1849 | #endif |
|
|
1850 | |
|
|
1851 | void noinline |
1003 | ev_signal_start (struct ev_signal *w) |
1852 | ev_signal_start (EV_P_ ev_signal *w) |
1004 | { |
1853 | { |
|
|
1854 | #if EV_MULTIPLICITY |
|
|
1855 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1856 | #endif |
1005 | if (ev_is_active (w)) |
1857 | if (expect_false (ev_is_active (w))) |
1006 | return; |
1858 | return; |
1007 | |
1859 | |
1008 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1860 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1009 | |
1861 | |
1010 | ev_start ((W)w, 1); |
1862 | { |
|
|
1863 | #ifndef _WIN32 |
|
|
1864 | sigset_t full, prev; |
|
|
1865 | sigfillset (&full); |
|
|
1866 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
1867 | #endif |
|
|
1868 | |
1011 | array_needsize (signals, signalmax, w->signum, signals_init); |
1869 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1870 | |
|
|
1871 | #ifndef _WIN32 |
|
|
1872 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
1873 | #endif |
|
|
1874 | } |
|
|
1875 | |
|
|
1876 | ev_start (EV_A_ (W)w, 1); |
1012 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1877 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1013 | |
1878 | |
1014 | if (!w->next) |
1879 | if (!((WL)w)->next) |
1015 | { |
1880 | { |
|
|
1881 | #if _WIN32 |
|
|
1882 | signal (w->signum, sighandler); |
|
|
1883 | #else |
1016 | struct sigaction sa; |
1884 | struct sigaction sa; |
1017 | sa.sa_handler = sighandler; |
1885 | sa.sa_handler = sighandler; |
1018 | sigfillset (&sa.sa_mask); |
1886 | sigfillset (&sa.sa_mask); |
1019 | sa.sa_flags = 0; |
1887 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1020 | sigaction (w->signum, &sa, 0); |
1888 | sigaction (w->signum, &sa, 0); |
|
|
1889 | #endif |
1021 | } |
1890 | } |
1022 | } |
1891 | } |
1023 | |
1892 | |
1024 | void |
1893 | void noinline |
1025 | ev_signal_stop (struct ev_signal *w) |
1894 | ev_signal_stop (EV_P_ ev_signal *w) |
1026 | { |
1895 | { |
1027 | ev_clear_pending ((W)w); |
1896 | clear_pending (EV_A_ (W)w); |
1028 | if (!ev_is_active (w)) |
1897 | if (expect_false (!ev_is_active (w))) |
1029 | return; |
1898 | return; |
1030 | |
1899 | |
1031 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1900 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1032 | ev_stop ((W)w); |
1901 | ev_stop (EV_A_ (W)w); |
1033 | |
1902 | |
1034 | if (!signals [w->signum - 1].head) |
1903 | if (!signals [w->signum - 1].head) |
1035 | signal (w->signum, SIG_DFL); |
1904 | signal (w->signum, SIG_DFL); |
1036 | } |
1905 | } |
1037 | |
1906 | |
1038 | void |
1907 | void |
1039 | ev_idle_start (struct ev_idle *w) |
1908 | ev_child_start (EV_P_ ev_child *w) |
1040 | { |
1909 | { |
|
|
1910 | #if EV_MULTIPLICITY |
|
|
1911 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1912 | #endif |
1041 | if (ev_is_active (w)) |
1913 | if (expect_false (ev_is_active (w))) |
1042 | return; |
1914 | return; |
1043 | |
1915 | |
1044 | ev_start ((W)w, ++idlecnt); |
1916 | ev_start (EV_A_ (W)w, 1); |
1045 | array_needsize (idles, idlemax, idlecnt, ); |
1917 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1046 | idles [idlecnt - 1] = w; |
|
|
1047 | } |
1918 | } |
1048 | |
1919 | |
1049 | void |
1920 | void |
1050 | ev_idle_stop (struct ev_idle *w) |
1921 | ev_child_stop (EV_P_ ev_child *w) |
1051 | { |
1922 | { |
1052 | ev_clear_pending ((W)w); |
1923 | clear_pending (EV_A_ (W)w); |
1053 | if (ev_is_active (w)) |
1924 | if (expect_false (!ev_is_active (w))) |
1054 | return; |
1925 | return; |
1055 | |
1926 | |
1056 | idles [w->active - 1] = idles [--idlecnt]; |
1927 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1057 | ev_stop ((W)w); |
1928 | ev_stop (EV_A_ (W)w); |
1058 | } |
1929 | } |
1059 | |
1930 | |
|
|
1931 | #if EV_STAT_ENABLE |
|
|
1932 | |
|
|
1933 | # ifdef _WIN32 |
|
|
1934 | # undef lstat |
|
|
1935 | # define lstat(a,b) _stati64 (a,b) |
|
|
1936 | # endif |
|
|
1937 | |
|
|
1938 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
1939 | #define MIN_STAT_INTERVAL 0.1074891 |
|
|
1940 | |
|
|
1941 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
|
|
1942 | |
|
|
1943 | #if EV_USE_INOTIFY |
|
|
1944 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
1945 | |
|
|
1946 | static void noinline |
|
|
1947 | infy_add (EV_P_ ev_stat *w) |
|
|
1948 | { |
|
|
1949 | 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); |
|
|
1950 | |
|
|
1951 | if (w->wd < 0) |
|
|
1952 | { |
|
|
1953 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
1954 | |
|
|
1955 | /* monitor some parent directory for speedup hints */ |
|
|
1956 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
|
|
1957 | { |
|
|
1958 | char path [4096]; |
|
|
1959 | strcpy (path, w->path); |
|
|
1960 | |
|
|
1961 | do |
|
|
1962 | { |
|
|
1963 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
|
|
1964 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
|
|
1965 | |
|
|
1966 | char *pend = strrchr (path, '/'); |
|
|
1967 | |
|
|
1968 | if (!pend) |
|
|
1969 | break; /* whoops, no '/', complain to your admin */ |
|
|
1970 | |
|
|
1971 | *pend = 0; |
|
|
1972 | w->wd = inotify_add_watch (fs_fd, path, mask); |
|
|
1973 | } |
|
|
1974 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
|
|
1975 | } |
|
|
1976 | } |
|
|
1977 | else |
|
|
1978 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
1979 | |
|
|
1980 | if (w->wd >= 0) |
|
|
1981 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
1982 | } |
|
|
1983 | |
|
|
1984 | static void noinline |
|
|
1985 | infy_del (EV_P_ ev_stat *w) |
|
|
1986 | { |
|
|
1987 | int slot; |
|
|
1988 | int wd = w->wd; |
|
|
1989 | |
|
|
1990 | if (wd < 0) |
|
|
1991 | return; |
|
|
1992 | |
|
|
1993 | w->wd = -2; |
|
|
1994 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
|
|
1995 | wlist_del (&fs_hash [slot].head, (WL)w); |
|
|
1996 | |
|
|
1997 | /* remove this watcher, if others are watching it, they will rearm */ |
|
|
1998 | inotify_rm_watch (fs_fd, wd); |
|
|
1999 | } |
|
|
2000 | |
|
|
2001 | static void noinline |
|
|
2002 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
|
|
2003 | { |
|
|
2004 | if (slot < 0) |
|
|
2005 | /* overflow, need to check for all hahs slots */ |
|
|
2006 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2007 | infy_wd (EV_A_ slot, wd, ev); |
|
|
2008 | else |
|
|
2009 | { |
|
|
2010 | WL w_; |
|
|
2011 | |
|
|
2012 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
|
|
2013 | { |
|
|
2014 | ev_stat *w = (ev_stat *)w_; |
|
|
2015 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
|
|
2016 | |
|
|
2017 | if (w->wd == wd || wd == -1) |
|
|
2018 | { |
|
|
2019 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
|
|
2020 | { |
|
|
2021 | w->wd = -1; |
|
|
2022 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2023 | } |
|
|
2024 | |
|
|
2025 | stat_timer_cb (EV_A_ &w->timer, 0); |
|
|
2026 | } |
|
|
2027 | } |
|
|
2028 | } |
|
|
2029 | } |
|
|
2030 | |
|
|
2031 | static void |
|
|
2032 | infy_cb (EV_P_ ev_io *w, int revents) |
|
|
2033 | { |
|
|
2034 | char buf [EV_INOTIFY_BUFSIZE]; |
|
|
2035 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2036 | int ofs; |
|
|
2037 | int len = read (fs_fd, buf, sizeof (buf)); |
|
|
2038 | |
|
|
2039 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
|
|
2040 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
2041 | } |
|
|
2042 | |
|
|
2043 | void inline_size |
|
|
2044 | infy_init (EV_P) |
|
|
2045 | { |
|
|
2046 | if (fs_fd != -2) |
|
|
2047 | return; |
|
|
2048 | |
|
|
2049 | fs_fd = inotify_init (); |
|
|
2050 | |
|
|
2051 | if (fs_fd >= 0) |
|
|
2052 | { |
|
|
2053 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
|
|
2054 | ev_set_priority (&fs_w, EV_MAXPRI); |
|
|
2055 | ev_io_start (EV_A_ &fs_w); |
|
|
2056 | } |
|
|
2057 | } |
|
|
2058 | |
|
|
2059 | void inline_size |
|
|
2060 | infy_fork (EV_P) |
|
|
2061 | { |
|
|
2062 | int slot; |
|
|
2063 | |
|
|
2064 | if (fs_fd < 0) |
|
|
2065 | return; |
|
|
2066 | |
|
|
2067 | close (fs_fd); |
|
|
2068 | fs_fd = inotify_init (); |
|
|
2069 | |
|
|
2070 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2071 | { |
|
|
2072 | WL w_ = fs_hash [slot].head; |
|
|
2073 | fs_hash [slot].head = 0; |
|
|
2074 | |
|
|
2075 | while (w_) |
|
|
2076 | { |
|
|
2077 | ev_stat *w = (ev_stat *)w_; |
|
|
2078 | w_ = w_->next; /* lets us add this watcher */ |
|
|
2079 | |
|
|
2080 | w->wd = -1; |
|
|
2081 | |
|
|
2082 | if (fs_fd >= 0) |
|
|
2083 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2084 | else |
|
|
2085 | ev_timer_start (EV_A_ &w->timer); |
|
|
2086 | } |
|
|
2087 | |
|
|
2088 | } |
|
|
2089 | } |
|
|
2090 | |
|
|
2091 | #endif |
|
|
2092 | |
1060 | void |
2093 | void |
|
|
2094 | ev_stat_stat (EV_P_ ev_stat *w) |
|
|
2095 | { |
|
|
2096 | if (lstat (w->path, &w->attr) < 0) |
|
|
2097 | w->attr.st_nlink = 0; |
|
|
2098 | else if (!w->attr.st_nlink) |
|
|
2099 | w->attr.st_nlink = 1; |
|
|
2100 | } |
|
|
2101 | |
|
|
2102 | static void noinline |
|
|
2103 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
2104 | { |
|
|
2105 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
2106 | |
|
|
2107 | /* we copy this here each the time so that */ |
|
|
2108 | /* prev has the old value when the callback gets invoked */ |
|
|
2109 | w->prev = w->attr; |
|
|
2110 | ev_stat_stat (EV_A_ w); |
|
|
2111 | |
|
|
2112 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
|
|
2113 | if ( |
|
|
2114 | w->prev.st_dev != w->attr.st_dev |
|
|
2115 | || w->prev.st_ino != w->attr.st_ino |
|
|
2116 | || w->prev.st_mode != w->attr.st_mode |
|
|
2117 | || w->prev.st_nlink != w->attr.st_nlink |
|
|
2118 | || w->prev.st_uid != w->attr.st_uid |
|
|
2119 | || w->prev.st_gid != w->attr.st_gid |
|
|
2120 | || w->prev.st_rdev != w->attr.st_rdev |
|
|
2121 | || w->prev.st_size != w->attr.st_size |
|
|
2122 | || w->prev.st_atime != w->attr.st_atime |
|
|
2123 | || w->prev.st_mtime != w->attr.st_mtime |
|
|
2124 | || w->prev.st_ctime != w->attr.st_ctime |
|
|
2125 | ) { |
|
|
2126 | #if EV_USE_INOTIFY |
|
|
2127 | infy_del (EV_A_ w); |
|
|
2128 | infy_add (EV_A_ w); |
|
|
2129 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2130 | #endif |
|
|
2131 | |
|
|
2132 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
2133 | } |
|
|
2134 | } |
|
|
2135 | |
|
|
2136 | void |
|
|
2137 | ev_stat_start (EV_P_ ev_stat *w) |
|
|
2138 | { |
|
|
2139 | if (expect_false (ev_is_active (w))) |
|
|
2140 | return; |
|
|
2141 | |
|
|
2142 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2143 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2144 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2145 | |
|
|
2146 | ev_stat_stat (EV_A_ w); |
|
|
2147 | |
|
|
2148 | if (w->interval < MIN_STAT_INTERVAL) |
|
|
2149 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2150 | |
|
|
2151 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
|
|
2152 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
2153 | |
|
|
2154 | #if EV_USE_INOTIFY |
|
|
2155 | infy_init (EV_A); |
|
|
2156 | |
|
|
2157 | if (fs_fd >= 0) |
|
|
2158 | infy_add (EV_A_ w); |
|
|
2159 | else |
|
|
2160 | #endif |
|
|
2161 | ev_timer_start (EV_A_ &w->timer); |
|
|
2162 | |
|
|
2163 | ev_start (EV_A_ (W)w, 1); |
|
|
2164 | } |
|
|
2165 | |
|
|
2166 | void |
|
|
2167 | ev_stat_stop (EV_P_ ev_stat *w) |
|
|
2168 | { |
|
|
2169 | clear_pending (EV_A_ (W)w); |
|
|
2170 | if (expect_false (!ev_is_active (w))) |
|
|
2171 | return; |
|
|
2172 | |
|
|
2173 | #if EV_USE_INOTIFY |
|
|
2174 | infy_del (EV_A_ w); |
|
|
2175 | #endif |
|
|
2176 | ev_timer_stop (EV_A_ &w->timer); |
|
|
2177 | |
|
|
2178 | ev_stop (EV_A_ (W)w); |
|
|
2179 | } |
|
|
2180 | #endif |
|
|
2181 | |
|
|
2182 | #if EV_IDLE_ENABLE |
|
|
2183 | void |
|
|
2184 | ev_idle_start (EV_P_ ev_idle *w) |
|
|
2185 | { |
|
|
2186 | if (expect_false (ev_is_active (w))) |
|
|
2187 | return; |
|
|
2188 | |
|
|
2189 | pri_adjust (EV_A_ (W)w); |
|
|
2190 | |
|
|
2191 | { |
|
|
2192 | int active = ++idlecnt [ABSPRI (w)]; |
|
|
2193 | |
|
|
2194 | ++idleall; |
|
|
2195 | ev_start (EV_A_ (W)w, active); |
|
|
2196 | |
|
|
2197 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
|
|
2198 | idles [ABSPRI (w)][active - 1] = w; |
|
|
2199 | } |
|
|
2200 | } |
|
|
2201 | |
|
|
2202 | void |
|
|
2203 | ev_idle_stop (EV_P_ ev_idle *w) |
|
|
2204 | { |
|
|
2205 | clear_pending (EV_A_ (W)w); |
|
|
2206 | if (expect_false (!ev_is_active (w))) |
|
|
2207 | return; |
|
|
2208 | |
|
|
2209 | { |
|
|
2210 | int active = ((W)w)->active; |
|
|
2211 | |
|
|
2212 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
|
|
2213 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
|
|
2214 | |
|
|
2215 | ev_stop (EV_A_ (W)w); |
|
|
2216 | --idleall; |
|
|
2217 | } |
|
|
2218 | } |
|
|
2219 | #endif |
|
|
2220 | |
|
|
2221 | void |
1061 | ev_prepare_start (struct ev_prepare *w) |
2222 | ev_prepare_start (EV_P_ ev_prepare *w) |
1062 | { |
2223 | { |
1063 | if (ev_is_active (w)) |
2224 | if (expect_false (ev_is_active (w))) |
1064 | return; |
2225 | return; |
1065 | |
2226 | |
1066 | ev_start ((W)w, ++preparecnt); |
2227 | ev_start (EV_A_ (W)w, ++preparecnt); |
1067 | array_needsize (prepares, preparemax, preparecnt, ); |
2228 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
1068 | prepares [preparecnt - 1] = w; |
2229 | prepares [preparecnt - 1] = w; |
1069 | } |
2230 | } |
1070 | |
2231 | |
1071 | void |
2232 | void |
1072 | ev_prepare_stop (struct ev_prepare *w) |
2233 | ev_prepare_stop (EV_P_ ev_prepare *w) |
1073 | { |
2234 | { |
1074 | ev_clear_pending ((W)w); |
2235 | clear_pending (EV_A_ (W)w); |
1075 | if (ev_is_active (w)) |
2236 | if (expect_false (!ev_is_active (w))) |
1076 | return; |
2237 | return; |
1077 | |
2238 | |
|
|
2239 | { |
|
|
2240 | int active = ((W)w)->active; |
1078 | prepares [w->active - 1] = prepares [--preparecnt]; |
2241 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
2242 | ((W)prepares [active - 1])->active = active; |
|
|
2243 | } |
|
|
2244 | |
1079 | ev_stop ((W)w); |
2245 | ev_stop (EV_A_ (W)w); |
1080 | } |
2246 | } |
1081 | |
2247 | |
1082 | void |
2248 | void |
1083 | ev_check_start (struct ev_check *w) |
2249 | ev_check_start (EV_P_ ev_check *w) |
1084 | { |
2250 | { |
1085 | if (ev_is_active (w)) |
2251 | if (expect_false (ev_is_active (w))) |
1086 | return; |
2252 | return; |
1087 | |
2253 | |
1088 | ev_start ((W)w, ++checkcnt); |
2254 | ev_start (EV_A_ (W)w, ++checkcnt); |
1089 | array_needsize (checks, checkmax, checkcnt, ); |
2255 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
1090 | checks [checkcnt - 1] = w; |
2256 | checks [checkcnt - 1] = w; |
1091 | } |
2257 | } |
1092 | |
2258 | |
1093 | void |
2259 | void |
1094 | ev_check_stop (struct ev_check *w) |
2260 | ev_check_stop (EV_P_ ev_check *w) |
1095 | { |
2261 | { |
1096 | ev_clear_pending ((W)w); |
2262 | clear_pending (EV_A_ (W)w); |
1097 | if (ev_is_active (w)) |
2263 | if (expect_false (!ev_is_active (w))) |
1098 | return; |
2264 | return; |
1099 | |
2265 | |
|
|
2266 | { |
|
|
2267 | int active = ((W)w)->active; |
1100 | checks [w->active - 1] = checks [--checkcnt]; |
2268 | checks [active - 1] = checks [--checkcnt]; |
|
|
2269 | ((W)checks [active - 1])->active = active; |
|
|
2270 | } |
|
|
2271 | |
1101 | ev_stop ((W)w); |
2272 | ev_stop (EV_A_ (W)w); |
1102 | } |
2273 | } |
1103 | |
2274 | |
1104 | void |
2275 | #if EV_EMBED_ENABLE |
1105 | ev_child_start (struct ev_child *w) |
2276 | void noinline |
|
|
2277 | ev_embed_sweep (EV_P_ ev_embed *w) |
1106 | { |
2278 | { |
|
|
2279 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2280 | } |
|
|
2281 | |
|
|
2282 | static void |
|
|
2283 | embed_io_cb (EV_P_ ev_io *io, int revents) |
|
|
2284 | { |
|
|
2285 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
|
|
2286 | |
1107 | if (ev_is_active (w)) |
2287 | if (ev_cb (w)) |
1108 | return; |
2288 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
|
|
2289 | else |
|
|
2290 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2291 | } |
1109 | |
2292 | |
|
|
2293 | static void |
|
|
2294 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
2295 | { |
|
|
2296 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
2297 | |
|
|
2298 | { |
|
|
2299 | struct ev_loop *loop = w->other; |
|
|
2300 | |
|
|
2301 | while (fdchangecnt) |
|
|
2302 | { |
|
|
2303 | fd_reify (EV_A); |
|
|
2304 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2305 | } |
|
|
2306 | } |
|
|
2307 | } |
|
|
2308 | |
|
|
2309 | #if 0 |
|
|
2310 | static void |
|
|
2311 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
2312 | { |
|
|
2313 | ev_idle_stop (EV_A_ idle); |
|
|
2314 | } |
|
|
2315 | #endif |
|
|
2316 | |
|
|
2317 | void |
|
|
2318 | ev_embed_start (EV_P_ ev_embed *w) |
|
|
2319 | { |
|
|
2320 | if (expect_false (ev_is_active (w))) |
|
|
2321 | return; |
|
|
2322 | |
|
|
2323 | { |
|
|
2324 | struct ev_loop *loop = w->other; |
|
|
2325 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
|
|
2326 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
|
|
2327 | } |
|
|
2328 | |
|
|
2329 | ev_set_priority (&w->io, ev_priority (w)); |
|
|
2330 | ev_io_start (EV_A_ &w->io); |
|
|
2331 | |
|
|
2332 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
2333 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
2334 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
2335 | |
|
|
2336 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
2337 | |
1110 | ev_start ((W)w, 1); |
2338 | ev_start (EV_A_ (W)w, 1); |
1111 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
|
|
1112 | } |
2339 | } |
1113 | |
2340 | |
1114 | void |
2341 | void |
1115 | ev_child_stop (struct ev_child *w) |
2342 | ev_embed_stop (EV_P_ ev_embed *w) |
1116 | { |
2343 | { |
1117 | ev_clear_pending ((W)w); |
2344 | clear_pending (EV_A_ (W)w); |
1118 | if (ev_is_active (w)) |
2345 | if (expect_false (!ev_is_active (w))) |
1119 | return; |
2346 | return; |
1120 | |
2347 | |
1121 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
2348 | ev_io_stop (EV_A_ &w->io); |
|
|
2349 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
2350 | |
1122 | ev_stop ((W)w); |
2351 | ev_stop (EV_A_ (W)w); |
1123 | } |
2352 | } |
|
|
2353 | #endif |
|
|
2354 | |
|
|
2355 | #if EV_FORK_ENABLE |
|
|
2356 | void |
|
|
2357 | ev_fork_start (EV_P_ ev_fork *w) |
|
|
2358 | { |
|
|
2359 | if (expect_false (ev_is_active (w))) |
|
|
2360 | return; |
|
|
2361 | |
|
|
2362 | ev_start (EV_A_ (W)w, ++forkcnt); |
|
|
2363 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
|
|
2364 | forks [forkcnt - 1] = w; |
|
|
2365 | } |
|
|
2366 | |
|
|
2367 | void |
|
|
2368 | ev_fork_stop (EV_P_ ev_fork *w) |
|
|
2369 | { |
|
|
2370 | clear_pending (EV_A_ (W)w); |
|
|
2371 | if (expect_false (!ev_is_active (w))) |
|
|
2372 | return; |
|
|
2373 | |
|
|
2374 | { |
|
|
2375 | int active = ((W)w)->active; |
|
|
2376 | forks [active - 1] = forks [--forkcnt]; |
|
|
2377 | ((W)forks [active - 1])->active = active; |
|
|
2378 | } |
|
|
2379 | |
|
|
2380 | ev_stop (EV_A_ (W)w); |
|
|
2381 | } |
|
|
2382 | #endif |
1124 | |
2383 | |
1125 | /*****************************************************************************/ |
2384 | /*****************************************************************************/ |
1126 | |
2385 | |
1127 | struct ev_once |
2386 | struct ev_once |
1128 | { |
2387 | { |
1129 | struct ev_io io; |
2388 | ev_io io; |
1130 | struct ev_timer to; |
2389 | ev_timer to; |
1131 | void (*cb)(int revents, void *arg); |
2390 | void (*cb)(int revents, void *arg); |
1132 | void *arg; |
2391 | void *arg; |
1133 | }; |
2392 | }; |
1134 | |
2393 | |
1135 | static void |
2394 | static void |
1136 | once_cb (struct ev_once *once, int revents) |
2395 | once_cb (EV_P_ struct ev_once *once, int revents) |
1137 | { |
2396 | { |
1138 | void (*cb)(int revents, void *arg) = once->cb; |
2397 | void (*cb)(int revents, void *arg) = once->cb; |
1139 | void *arg = once->arg; |
2398 | void *arg = once->arg; |
1140 | |
2399 | |
1141 | ev_io_stop (&once->io); |
2400 | ev_io_stop (EV_A_ &once->io); |
1142 | ev_timer_stop (&once->to); |
2401 | ev_timer_stop (EV_A_ &once->to); |
1143 | free (once); |
2402 | ev_free (once); |
1144 | |
2403 | |
1145 | cb (revents, arg); |
2404 | cb (revents, arg); |
1146 | } |
2405 | } |
1147 | |
2406 | |
1148 | static void |
2407 | static void |
1149 | once_cb_io (struct ev_io *w, int revents) |
2408 | once_cb_io (EV_P_ ev_io *w, int revents) |
1150 | { |
2409 | { |
1151 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
2410 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1152 | } |
2411 | } |
1153 | |
2412 | |
1154 | static void |
2413 | static void |
1155 | once_cb_to (struct ev_timer *w, int revents) |
2414 | once_cb_to (EV_P_ ev_timer *w, int revents) |
1156 | { |
2415 | { |
1157 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
2416 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1158 | } |
2417 | } |
1159 | |
2418 | |
1160 | void |
2419 | void |
1161 | ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2420 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1162 | { |
2421 | { |
1163 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
2422 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1164 | |
2423 | |
1165 | if (!once) |
2424 | if (expect_false (!once)) |
|
|
2425 | { |
1166 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
2426 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1167 | else |
2427 | return; |
1168 | { |
2428 | } |
|
|
2429 | |
1169 | once->cb = cb; |
2430 | once->cb = cb; |
1170 | once->arg = arg; |
2431 | once->arg = arg; |
1171 | |
2432 | |
1172 | ev_watcher_init (&once->io, once_cb_io); |
2433 | ev_init (&once->io, once_cb_io); |
1173 | if (fd >= 0) |
2434 | if (fd >= 0) |
1174 | { |
2435 | { |
1175 | ev_io_set (&once->io, fd, events); |
2436 | ev_io_set (&once->io, fd, events); |
1176 | ev_io_start (&once->io); |
2437 | ev_io_start (EV_A_ &once->io); |
1177 | } |
2438 | } |
1178 | |
2439 | |
1179 | ev_watcher_init (&once->to, once_cb_to); |
2440 | ev_init (&once->to, once_cb_to); |
1180 | if (timeout >= 0.) |
2441 | if (timeout >= 0.) |
1181 | { |
2442 | { |
1182 | ev_timer_set (&once->to, timeout, 0.); |
2443 | ev_timer_set (&once->to, timeout, 0.); |
1183 | ev_timer_start (&once->to); |
2444 | ev_timer_start (EV_A_ &once->to); |
1184 | } |
|
|
1185 | } |
|
|
1186 | } |
|
|
1187 | |
|
|
1188 | /*****************************************************************************/ |
|
|
1189 | |
|
|
1190 | #if 0 |
|
|
1191 | |
|
|
1192 | struct ev_io wio; |
|
|
1193 | |
|
|
1194 | static void |
|
|
1195 | sin_cb (struct ev_io *w, int revents) |
|
|
1196 | { |
|
|
1197 | fprintf (stderr, "sin %d, revents %d\n", w->fd, revents); |
|
|
1198 | } |
|
|
1199 | |
|
|
1200 | static void |
|
|
1201 | ocb (struct ev_timer *w, int revents) |
|
|
1202 | { |
|
|
1203 | //fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data); |
|
|
1204 | ev_timer_stop (w); |
|
|
1205 | ev_timer_start (w); |
|
|
1206 | } |
|
|
1207 | |
|
|
1208 | static void |
|
|
1209 | scb (struct ev_signal *w, int revents) |
|
|
1210 | { |
|
|
1211 | fprintf (stderr, "signal %x,%d\n", revents, w->signum); |
|
|
1212 | ev_io_stop (&wio); |
|
|
1213 | ev_io_start (&wio); |
|
|
1214 | } |
|
|
1215 | |
|
|
1216 | static void |
|
|
1217 | gcb (struct ev_signal *w, int revents) |
|
|
1218 | { |
|
|
1219 | fprintf (stderr, "generic %x\n", revents); |
|
|
1220 | |
|
|
1221 | } |
|
|
1222 | |
|
|
1223 | int main (void) |
|
|
1224 | { |
|
|
1225 | ev_init (0); |
|
|
1226 | |
|
|
1227 | ev_io_init (&wio, sin_cb, 0, EV_READ); |
|
|
1228 | ev_io_start (&wio); |
|
|
1229 | |
|
|
1230 | struct ev_timer t[10000]; |
|
|
1231 | |
|
|
1232 | #if 0 |
|
|
1233 | int i; |
|
|
1234 | for (i = 0; i < 10000; ++i) |
|
|
1235 | { |
2445 | } |
1236 | struct ev_timer *w = t + i; |
|
|
1237 | ev_watcher_init (w, ocb, i); |
|
|
1238 | ev_timer_init_abs (w, ocb, drand48 (), 0.99775533); |
|
|
1239 | ev_timer_start (w); |
|
|
1240 | if (drand48 () < 0.5) |
|
|
1241 | ev_timer_stop (w); |
|
|
1242 | } |
|
|
1243 | #endif |
|
|
1244 | |
|
|
1245 | struct ev_timer t1; |
|
|
1246 | ev_timer_init (&t1, ocb, 5, 10); |
|
|
1247 | ev_timer_start (&t1); |
|
|
1248 | |
|
|
1249 | struct ev_signal sig; |
|
|
1250 | ev_signal_init (&sig, scb, SIGQUIT); |
|
|
1251 | ev_signal_start (&sig); |
|
|
1252 | |
|
|
1253 | struct ev_check cw; |
|
|
1254 | ev_check_init (&cw, gcb); |
|
|
1255 | ev_check_start (&cw); |
|
|
1256 | |
|
|
1257 | struct ev_idle iw; |
|
|
1258 | ev_idle_init (&iw, gcb); |
|
|
1259 | ev_idle_start (&iw); |
|
|
1260 | |
|
|
1261 | ev_loop (0); |
|
|
1262 | |
|
|
1263 | return 0; |
|
|
1264 | } |
2446 | } |
1265 | |
2447 | |
|
|
2448 | #if EV_MULTIPLICITY |
|
|
2449 | #include "ev_wrap.h" |
1266 | #endif |
2450 | #endif |
1267 | |
2451 | |
|
|
2452 | #ifdef __cplusplus |
|
|
2453 | } |
|
|
2454 | #endif |
1268 | |
2455 | |
1269 | |
|
|
1270 | |
|
|