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1 | /* |
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2 | * libev event processing core, watcher management |
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3 | * |
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4 | * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> |
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5 | * All rights reserved. |
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6 | * |
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7 | * Redistribution and use in source and binary forms, with or without |
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8 | * modification, are permitted provided that the following conditions are |
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9 | * met: |
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10 | * |
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11 | * * Redistributions of source code must retain the above copyright |
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12 | * notice, this list of conditions and the following disclaimer. |
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13 | * |
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14 | * * Redistributions in binary form must reproduce the above |
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15 | * copyright notice, this list of conditions and the following |
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16 | * disclaimer in the documentation and/or other materials provided |
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17 | * with the distribution. |
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18 | * |
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19 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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20 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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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 | */ |
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31 | |
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32 | #ifdef __cplusplus |
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33 | extern "C" { |
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34 | #endif |
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35 | |
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36 | #ifndef EV_STANDALONE |
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37 | # ifdef EV_CONFIG_H |
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38 | # include EV_CONFIG_H |
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39 | # else |
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40 | # include "config.h" |
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41 | # endif |
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42 | |
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43 | # if HAVE_CLOCK_GETTIME |
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44 | # ifndef EV_USE_MONOTONIC |
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45 | # define EV_USE_MONOTONIC 1 |
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46 | # endif |
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47 | # ifndef EV_USE_REALTIME |
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48 | # define EV_USE_REALTIME 1 |
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49 | # endif |
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50 | # else |
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51 | # ifndef EV_USE_MONOTONIC |
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52 | # define EV_USE_MONOTONIC 0 |
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53 | # endif |
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54 | # ifndef EV_USE_REALTIME |
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55 | # define EV_USE_REALTIME 0 |
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56 | # endif |
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57 | # endif |
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58 | |
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59 | # ifndef EV_USE_SELECT |
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60 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
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61 | # define EV_USE_SELECT 1 |
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62 | # else |
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63 | # define EV_USE_SELECT 0 |
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64 | # endif |
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65 | # endif |
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66 | |
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67 | # ifndef EV_USE_POLL |
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68 | # if HAVE_POLL && HAVE_POLL_H |
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69 | # define EV_USE_POLL 1 |
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70 | # else |
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71 | # define EV_USE_POLL 0 |
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72 | # endif |
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73 | # endif |
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74 | |
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75 | # ifndef EV_USE_EPOLL |
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76 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
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77 | # define EV_USE_EPOLL 1 |
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78 | # else |
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79 | # define EV_USE_EPOLL 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_KQUEUE |
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84 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
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85 | # define EV_USE_KQUEUE 1 |
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86 | # else |
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87 | # define EV_USE_KQUEUE 0 |
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88 | # endif |
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89 | # endif |
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90 | |
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91 | # ifndef EV_USE_PORT |
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92 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
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93 | # define EV_USE_PORT 1 |
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94 | # else |
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95 | # define EV_USE_PORT 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_INOTIFY |
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100 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
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101 | # define EV_USE_INOTIFY 1 |
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102 | # else |
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103 | # define EV_USE_INOTIFY 0 |
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104 | # endif |
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105 | # endif |
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106 | |
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107 | #endif |
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108 | |
1 | #include <math.h> |
109 | #include <math.h> |
2 | #include <stdlib.h> |
110 | #include <stdlib.h> |
3 | #include <unistd.h> |
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4 | #include <fcntl.h> |
111 | #include <fcntl.h> |
5 | #include <signal.h> |
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6 | #include <stddef.h> |
112 | #include <stddef.h> |
7 | |
113 | |
8 | #include <stdio.h> |
114 | #include <stdio.h> |
9 | |
115 | |
10 | #include <assert.h> |
116 | #include <assert.h> |
11 | #include <errno.h> |
117 | #include <errno.h> |
12 | #include <sys/time.h> |
118 | #include <sys/types.h> |
13 | #include <time.h> |
119 | #include <time.h> |
14 | |
120 | |
15 | #define HAVE_EPOLL 1 |
121 | #include <signal.h> |
16 | |
122 | |
17 | #ifndef HAVE_MONOTONIC |
123 | #ifdef EV_H |
18 | # ifdef CLOCK_MONOTONIC |
124 | # include EV_H |
19 | # define HAVE_MONOTONIC 1 |
125 | #else |
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126 | # include "ev.h" |
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127 | #endif |
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128 | |
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129 | #ifndef _WIN32 |
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130 | # include <sys/time.h> |
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131 | # include <sys/wait.h> |
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132 | # include <unistd.h> |
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133 | #else |
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134 | # define WIN32_LEAN_AND_MEAN |
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135 | # include <windows.h> |
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136 | # ifndef EV_SELECT_IS_WINSOCKET |
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137 | # define EV_SELECT_IS_WINSOCKET 1 |
20 | # endif |
138 | # endif |
21 | #endif |
139 | #endif |
22 | |
140 | |
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141 | /**/ |
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142 | |
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143 | #ifndef EV_USE_MONOTONIC |
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144 | # define EV_USE_MONOTONIC 0 |
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145 | #endif |
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146 | |
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147 | #ifndef EV_USE_REALTIME |
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148 | # define EV_USE_REALTIME 0 |
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149 | #endif |
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150 | |
23 | #ifndef HAVE_SELECT |
151 | #ifndef EV_USE_SELECT |
24 | # define HAVE_SELECT 1 |
152 | # define EV_USE_SELECT 1 |
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153 | #endif |
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154 | |
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155 | #ifndef EV_USE_POLL |
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156 | # ifdef _WIN32 |
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157 | # define EV_USE_POLL 0 |
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158 | # else |
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159 | # define EV_USE_POLL 1 |
25 | #endif |
160 | # endif |
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161 | #endif |
26 | |
162 | |
27 | #ifndef HAVE_EPOLL |
163 | #ifndef EV_USE_EPOLL |
28 | # define HAVE_EPOLL 0 |
164 | # define EV_USE_EPOLL 0 |
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165 | #endif |
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166 | |
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167 | #ifndef EV_USE_KQUEUE |
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168 | # define EV_USE_KQUEUE 0 |
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169 | #endif |
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170 | |
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171 | #ifndef EV_USE_PORT |
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172 | # define EV_USE_PORT 0 |
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173 | #endif |
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174 | |
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175 | #ifndef EV_USE_INOTIFY |
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176 | # define EV_USE_INOTIFY 0 |
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177 | #endif |
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178 | |
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179 | #ifndef EV_PID_HASHSIZE |
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180 | # if EV_MINIMAL |
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181 | # define EV_PID_HASHSIZE 1 |
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182 | # else |
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183 | # define EV_PID_HASHSIZE 16 |
29 | #endif |
184 | # endif |
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185 | #endif |
30 | |
186 | |
31 | #ifndef HAVE_REALTIME |
187 | #ifndef EV_INOTIFY_HASHSIZE |
32 | # define HAVE_REALTIME 1 /* posix requirement, but might be slower */ |
188 | # if EV_MINIMAL |
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189 | # define EV_INOTIFY_HASHSIZE 1 |
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190 | # else |
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191 | # define EV_INOTIFY_HASHSIZE 16 |
33 | #endif |
192 | # endif |
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193 | #endif |
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194 | |
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195 | /**/ |
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196 | |
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197 | #ifndef CLOCK_MONOTONIC |
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198 | # undef EV_USE_MONOTONIC |
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199 | # define EV_USE_MONOTONIC 0 |
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200 | #endif |
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201 | |
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202 | #ifndef CLOCK_REALTIME |
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203 | # undef EV_USE_REALTIME |
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204 | # define EV_USE_REALTIME 0 |
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205 | #endif |
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206 | |
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207 | #if EV_SELECT_IS_WINSOCKET |
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208 | # include <winsock.h> |
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209 | #endif |
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210 | |
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211 | #if !EV_STAT_ENABLE |
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212 | # define EV_USE_INOTIFY 0 |
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213 | #endif |
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214 | |
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215 | #if EV_USE_INOTIFY |
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216 | # include <sys/inotify.h> |
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217 | #endif |
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218 | |
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219 | /**/ |
34 | |
220 | |
35 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
221 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
36 | #define MAX_BLOCKTIME 60. |
222 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
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223 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */ |
37 | |
224 | |
38 | #include "ev.h" |
225 | #if __GNUC__ >= 3 |
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226 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
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227 | # define inline_size static inline /* inline for codesize */ |
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228 | # if EV_MINIMAL |
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229 | # define noinline __attribute__ ((noinline)) |
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230 | # define inline_speed static noinline |
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231 | # else |
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232 | # define noinline |
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233 | # define inline_speed static inline |
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234 | # endif |
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235 | #else |
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236 | # define expect(expr,value) (expr) |
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237 | # define inline_speed static |
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238 | # define inline_size static |
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239 | # define noinline |
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240 | #endif |
39 | |
241 | |
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242 | #define expect_false(expr) expect ((expr) != 0, 0) |
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243 | #define expect_true(expr) expect ((expr) != 0, 1) |
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244 | |
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245 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
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246 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
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247 | |
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248 | #define EMPTY0 /* required for microsofts broken pseudo-c compiler */ |
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249 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
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250 | |
40 | typedef struct ev_watcher *W; |
251 | typedef ev_watcher *W; |
41 | typedef struct ev_watcher_list *WL; |
252 | typedef ev_watcher_list *WL; |
42 | typedef struct ev_watcher_time *WT; |
253 | typedef ev_watcher_time *WT; |
43 | |
254 | |
44 | static ev_tstamp now, diff; /* monotonic clock */ |
255 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
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256 | |
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257 | #ifdef _WIN32 |
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258 | # include "ev_win32.c" |
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259 | #endif |
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260 | |
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261 | /*****************************************************************************/ |
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262 | |
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263 | static void (*syserr_cb)(const char *msg); |
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264 | |
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265 | void |
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266 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
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267 | { |
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268 | syserr_cb = cb; |
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269 | } |
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270 | |
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271 | static void noinline |
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272 | syserr (const char *msg) |
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273 | { |
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274 | if (!msg) |
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275 | msg = "(libev) system error"; |
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276 | |
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277 | if (syserr_cb) |
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278 | syserr_cb (msg); |
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279 | else |
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280 | { |
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281 | perror (msg); |
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282 | abort (); |
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283 | } |
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284 | } |
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285 | |
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286 | static void *(*alloc)(void *ptr, long size); |
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287 | |
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288 | void |
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289 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
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290 | { |
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291 | alloc = cb; |
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292 | } |
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293 | |
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294 | inline_speed void * |
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295 | ev_realloc (void *ptr, long size) |
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296 | { |
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297 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
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298 | |
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299 | if (!ptr && size) |
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300 | { |
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301 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
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302 | abort (); |
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303 | } |
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304 | |
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305 | return ptr; |
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306 | } |
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307 | |
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308 | #define ev_malloc(size) ev_realloc (0, (size)) |
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309 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
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310 | |
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311 | /*****************************************************************************/ |
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312 | |
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313 | typedef struct |
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314 | { |
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315 | WL head; |
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316 | unsigned char events; |
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317 | unsigned char reify; |
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318 | #if EV_SELECT_IS_WINSOCKET |
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319 | SOCKET handle; |
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320 | #endif |
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321 | } ANFD; |
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322 | |
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323 | typedef struct |
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324 | { |
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325 | W w; |
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326 | int events; |
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327 | } ANPENDING; |
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328 | |
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329 | #if EV_USE_INOTIFY |
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330 | typedef struct |
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331 | { |
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332 | WL head; |
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333 | } ANFS; |
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334 | #endif |
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335 | |
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336 | #if EV_MULTIPLICITY |
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337 | |
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338 | struct ev_loop |
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339 | { |
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340 | ev_tstamp ev_rt_now; |
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341 | #define ev_rt_now ((loop)->ev_rt_now) |
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342 | #define VAR(name,decl) decl; |
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343 | #include "ev_vars.h" |
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344 | #undef VAR |
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345 | }; |
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346 | #include "ev_wrap.h" |
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347 | |
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348 | static struct ev_loop default_loop_struct; |
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349 | struct ev_loop *ev_default_loop_ptr; |
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350 | |
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351 | #else |
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352 | |
45 | ev_tstamp ev_now; |
353 | ev_tstamp ev_rt_now; |
46 | int ev_method; |
354 | #define VAR(name,decl) static decl; |
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355 | #include "ev_vars.h" |
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356 | #undef VAR |
47 | |
357 | |
48 | static int have_monotonic; /* runtime */ |
358 | static int ev_default_loop_ptr; |
49 | |
359 | |
50 | static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */ |
360 | #endif |
51 | static void (*method_modify)(int fd, int oev, int nev); |
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52 | static void (*method_poll)(ev_tstamp timeout); |
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53 | |
361 | |
54 | /*****************************************************************************/ |
362 | /*****************************************************************************/ |
55 | |
363 | |
56 | ev_tstamp |
364 | ev_tstamp |
57 | ev_time (void) |
365 | ev_time (void) |
58 | { |
366 | { |
59 | #if HAVE_REALTIME |
367 | #if EV_USE_REALTIME |
60 | struct timespec ts; |
368 | struct timespec ts; |
61 | clock_gettime (CLOCK_REALTIME, &ts); |
369 | clock_gettime (CLOCK_REALTIME, &ts); |
62 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
370 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
63 | #else |
371 | #else |
64 | struct timeval tv; |
372 | struct timeval tv; |
65 | gettimeofday (&tv, 0); |
373 | gettimeofday (&tv, 0); |
66 | return tv.tv_sec + tv.tv_usec * 1e-6; |
374 | return tv.tv_sec + tv.tv_usec * 1e-6; |
67 | #endif |
375 | #endif |
68 | } |
376 | } |
69 | |
377 | |
70 | static ev_tstamp |
378 | ev_tstamp inline_size |
71 | get_clock (void) |
379 | get_clock (void) |
72 | { |
380 | { |
73 | #if HAVE_MONOTONIC |
381 | #if EV_USE_MONOTONIC |
74 | if (have_monotonic) |
382 | if (expect_true (have_monotonic)) |
75 | { |
383 | { |
76 | struct timespec ts; |
384 | struct timespec ts; |
77 | clock_gettime (CLOCK_MONOTONIC, &ts); |
385 | clock_gettime (CLOCK_MONOTONIC, &ts); |
78 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
386 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
79 | } |
387 | } |
80 | #endif |
388 | #endif |
81 | |
389 | |
82 | return ev_time (); |
390 | return ev_time (); |
83 | } |
391 | } |
84 | |
392 | |
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393 | #if EV_MULTIPLICITY |
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394 | ev_tstamp |
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395 | ev_now (EV_P) |
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396 | { |
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397 | return ev_rt_now; |
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398 | } |
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399 | #endif |
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400 | |
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401 | #define array_roundsize(type,n) (((n) | 4) & ~3) |
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402 | |
85 | #define array_needsize(base,cur,cnt,init) \ |
403 | #define array_needsize(type,base,cur,cnt,init) \ |
86 | if ((cnt) > cur) \ |
404 | if (expect_false ((cnt) > cur)) \ |
87 | { \ |
405 | { \ |
88 | int newcnt = cur ? cur << 1 : 16; \ |
406 | int newcnt = cur; \ |
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407 | do \ |
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408 | { \ |
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409 | newcnt = array_roundsize (type, newcnt << 1); \ |
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410 | } \ |
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411 | while ((cnt) > newcnt); \ |
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412 | \ |
89 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
413 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
90 | init (base + cur, newcnt - cur); \ |
414 | init (base + cur, newcnt - cur); \ |
91 | cur = newcnt; \ |
415 | cur = newcnt; \ |
92 | } |
416 | } |
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417 | |
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418 | #define array_slim(type,stem) \ |
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419 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
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420 | { \ |
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421 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
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422 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
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423 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
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424 | } |
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425 | |
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426 | #define array_free(stem, idx) \ |
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427 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
93 | |
428 | |
94 | /*****************************************************************************/ |
429 | /*****************************************************************************/ |
95 | |
430 | |
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431 | void noinline |
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432 | ev_feed_event (EV_P_ void *w, int revents) |
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433 | { |
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434 | W w_ = (W)w; |
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435 | |
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436 | if (expect_false (w_->pending)) |
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437 | { |
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438 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
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439 | return; |
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440 | } |
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441 | |
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442 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
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443 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2); |
|
|
444 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
|
|
445 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
|
|
446 | } |
|
|
447 | |
|
|
448 | void inline_size |
|
|
449 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
450 | { |
|
|
451 | int i; |
|
|
452 | |
|
|
453 | for (i = 0; i < eventcnt; ++i) |
|
|
454 | ev_feed_event (EV_A_ events [i], type); |
|
|
455 | } |
|
|
456 | |
|
|
457 | /*****************************************************************************/ |
|
|
458 | |
|
|
459 | void inline_size |
|
|
460 | anfds_init (ANFD *base, int count) |
|
|
461 | { |
|
|
462 | while (count--) |
|
|
463 | { |
|
|
464 | base->head = 0; |
|
|
465 | base->events = EV_NONE; |
|
|
466 | base->reify = 0; |
|
|
467 | |
|
|
468 | ++base; |
|
|
469 | } |
|
|
470 | } |
|
|
471 | |
|
|
472 | void inline_speed |
|
|
473 | fd_event (EV_P_ int fd, int revents) |
|
|
474 | { |
|
|
475 | ANFD *anfd = anfds + fd; |
|
|
476 | ev_io *w; |
|
|
477 | |
|
|
478 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
|
|
479 | { |
|
|
480 | int ev = w->events & revents; |
|
|
481 | |
|
|
482 | if (ev) |
|
|
483 | ev_feed_event (EV_A_ (W)w, ev); |
|
|
484 | } |
|
|
485 | } |
|
|
486 | |
|
|
487 | void |
|
|
488 | ev_feed_fd_event (EV_P_ int fd, int revents) |
|
|
489 | { |
|
|
490 | fd_event (EV_A_ fd, revents); |
|
|
491 | } |
|
|
492 | |
|
|
493 | void inline_size |
|
|
494 | fd_reify (EV_P) |
|
|
495 | { |
|
|
496 | int i; |
|
|
497 | |
|
|
498 | for (i = 0; i < fdchangecnt; ++i) |
|
|
499 | { |
|
|
500 | int fd = fdchanges [i]; |
|
|
501 | ANFD *anfd = anfds + fd; |
|
|
502 | ev_io *w; |
|
|
503 | |
|
|
504 | int events = 0; |
|
|
505 | |
|
|
506 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
|
|
507 | events |= w->events; |
|
|
508 | |
|
|
509 | #if EV_SELECT_IS_WINSOCKET |
|
|
510 | if (events) |
|
|
511 | { |
|
|
512 | unsigned long argp; |
|
|
513 | anfd->handle = _get_osfhandle (fd); |
|
|
514 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
|
|
515 | } |
|
|
516 | #endif |
|
|
517 | |
|
|
518 | anfd->reify = 0; |
|
|
519 | |
|
|
520 | backend_modify (EV_A_ fd, anfd->events, events); |
|
|
521 | anfd->events = events; |
|
|
522 | } |
|
|
523 | |
|
|
524 | fdchangecnt = 0; |
|
|
525 | } |
|
|
526 | |
|
|
527 | void inline_size |
|
|
528 | fd_change (EV_P_ int fd) |
|
|
529 | { |
|
|
530 | if (expect_false (anfds [fd].reify)) |
|
|
531 | return; |
|
|
532 | |
|
|
533 | anfds [fd].reify = 1; |
|
|
534 | |
|
|
535 | ++fdchangecnt; |
|
|
536 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
|
|
537 | fdchanges [fdchangecnt - 1] = fd; |
|
|
538 | } |
|
|
539 | |
|
|
540 | void inline_speed |
|
|
541 | fd_kill (EV_P_ int fd) |
|
|
542 | { |
|
|
543 | ev_io *w; |
|
|
544 | |
|
|
545 | while ((w = (ev_io *)anfds [fd].head)) |
|
|
546 | { |
|
|
547 | ev_io_stop (EV_A_ w); |
|
|
548 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
|
|
549 | } |
|
|
550 | } |
|
|
551 | |
|
|
552 | int inline_size |
|
|
553 | fd_valid (int fd) |
|
|
554 | { |
|
|
555 | #ifdef _WIN32 |
|
|
556 | return _get_osfhandle (fd) != -1; |
|
|
557 | #else |
|
|
558 | return fcntl (fd, F_GETFD) != -1; |
|
|
559 | #endif |
|
|
560 | } |
|
|
561 | |
|
|
562 | /* called on EBADF to verify fds */ |
|
|
563 | static void noinline |
|
|
564 | fd_ebadf (EV_P) |
|
|
565 | { |
|
|
566 | int fd; |
|
|
567 | |
|
|
568 | for (fd = 0; fd < anfdmax; ++fd) |
|
|
569 | if (anfds [fd].events) |
|
|
570 | if (!fd_valid (fd) == -1 && errno == EBADF) |
|
|
571 | fd_kill (EV_A_ fd); |
|
|
572 | } |
|
|
573 | |
|
|
574 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
|
|
575 | static void noinline |
|
|
576 | fd_enomem (EV_P) |
|
|
577 | { |
|
|
578 | int fd; |
|
|
579 | |
|
|
580 | for (fd = anfdmax; fd--; ) |
|
|
581 | if (anfds [fd].events) |
|
|
582 | { |
|
|
583 | fd_kill (EV_A_ fd); |
|
|
584 | return; |
|
|
585 | } |
|
|
586 | } |
|
|
587 | |
|
|
588 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
|
|
589 | static void noinline |
|
|
590 | fd_rearm_all (EV_P) |
|
|
591 | { |
|
|
592 | int fd; |
|
|
593 | |
|
|
594 | for (fd = 0; fd < anfdmax; ++fd) |
|
|
595 | if (anfds [fd].events) |
|
|
596 | { |
|
|
597 | anfds [fd].events = 0; |
|
|
598 | fd_change (EV_A_ fd); |
|
|
599 | } |
|
|
600 | } |
|
|
601 | |
|
|
602 | /*****************************************************************************/ |
|
|
603 | |
|
|
604 | void inline_speed |
|
|
605 | upheap (WT *heap, int k) |
|
|
606 | { |
|
|
607 | WT w = heap [k]; |
|
|
608 | |
|
|
609 | while (k && heap [k >> 1]->at > w->at) |
|
|
610 | { |
|
|
611 | heap [k] = heap [k >> 1]; |
|
|
612 | ((W)heap [k])->active = k + 1; |
|
|
613 | k >>= 1; |
|
|
614 | } |
|
|
615 | |
|
|
616 | heap [k] = w; |
|
|
617 | ((W)heap [k])->active = k + 1; |
|
|
618 | |
|
|
619 | } |
|
|
620 | |
|
|
621 | void inline_speed |
|
|
622 | downheap (WT *heap, int N, int k) |
|
|
623 | { |
|
|
624 | WT w = heap [k]; |
|
|
625 | |
|
|
626 | while (k < (N >> 1)) |
|
|
627 | { |
|
|
628 | int j = k << 1; |
|
|
629 | |
|
|
630 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
|
|
631 | ++j; |
|
|
632 | |
|
|
633 | if (w->at <= heap [j]->at) |
|
|
634 | break; |
|
|
635 | |
|
|
636 | heap [k] = heap [j]; |
|
|
637 | ((W)heap [k])->active = k + 1; |
|
|
638 | k = j; |
|
|
639 | } |
|
|
640 | |
|
|
641 | heap [k] = w; |
|
|
642 | ((W)heap [k])->active = k + 1; |
|
|
643 | } |
|
|
644 | |
|
|
645 | void inline_size |
|
|
646 | adjustheap (WT *heap, int N, int k) |
|
|
647 | { |
|
|
648 | upheap (heap, k); |
|
|
649 | downheap (heap, N, k); |
|
|
650 | } |
|
|
651 | |
|
|
652 | /*****************************************************************************/ |
|
|
653 | |
96 | typedef struct |
654 | typedef struct |
97 | { |
655 | { |
98 | struct ev_io *head; |
656 | WL head; |
99 | unsigned char wev, rev; /* want, received event set */ |
|
|
100 | } ANFD; |
|
|
101 | |
|
|
102 | static ANFD *anfds; |
|
|
103 | static int anfdmax; |
|
|
104 | |
|
|
105 | static int *fdchanges; |
|
|
106 | static int fdchangemax, fdchangecnt; |
|
|
107 | |
|
|
108 | static void |
|
|
109 | anfds_init (ANFD *base, int count) |
|
|
110 | { |
|
|
111 | while (count--) |
|
|
112 | { |
|
|
113 | base->head = 0; |
|
|
114 | base->wev = base->rev = EV_NONE; |
|
|
115 | ++base; |
|
|
116 | } |
|
|
117 | } |
|
|
118 | |
|
|
119 | typedef struct |
|
|
120 | { |
|
|
121 | W w; |
|
|
122 | int events; |
|
|
123 | } ANPENDING; |
|
|
124 | |
|
|
125 | static ANPENDING *pendings; |
|
|
126 | static int pendingmax, pendingcnt; |
|
|
127 | |
|
|
128 | static void |
|
|
129 | event (W w, int events) |
|
|
130 | { |
|
|
131 | if (w->active) |
|
|
132 | { |
|
|
133 | w->pending = ++pendingcnt; |
|
|
134 | array_needsize (pendings, pendingmax, pendingcnt, ); |
|
|
135 | pendings [pendingcnt - 1].w = w; |
|
|
136 | pendings [pendingcnt - 1].events = events; |
|
|
137 | } |
|
|
138 | } |
|
|
139 | |
|
|
140 | static void |
|
|
141 | fd_event (int fd, int events) |
|
|
142 | { |
|
|
143 | ANFD *anfd = anfds + fd; |
|
|
144 | struct ev_io *w; |
|
|
145 | |
|
|
146 | for (w = anfd->head; w; w = w->next) |
|
|
147 | { |
|
|
148 | int ev = w->events & events; |
|
|
149 | |
|
|
150 | if (ev) |
|
|
151 | event ((W)w, ev); |
|
|
152 | } |
|
|
153 | } |
|
|
154 | |
|
|
155 | static void |
|
|
156 | queue_events (W *events, int eventcnt, int type) |
|
|
157 | { |
|
|
158 | int i; |
|
|
159 | |
|
|
160 | for (i = 0; i < eventcnt; ++i) |
|
|
161 | event (events [i], type); |
|
|
162 | } |
|
|
163 | |
|
|
164 | /*****************************************************************************/ |
|
|
165 | |
|
|
166 | static struct ev_timer **timers; |
|
|
167 | static int timermax, timercnt; |
|
|
168 | |
|
|
169 | static struct ev_periodic **periodics; |
|
|
170 | static int periodicmax, periodiccnt; |
|
|
171 | |
|
|
172 | static void |
|
|
173 | upheap (WT *timers, int k) |
|
|
174 | { |
|
|
175 | WT w = timers [k]; |
|
|
176 | |
|
|
177 | while (k && timers [k >> 1]->at > w->at) |
|
|
178 | { |
|
|
179 | timers [k] = timers [k >> 1]; |
|
|
180 | timers [k]->active = k + 1; |
|
|
181 | k >>= 1; |
|
|
182 | } |
|
|
183 | |
|
|
184 | timers [k] = w; |
|
|
185 | timers [k]->active = k + 1; |
|
|
186 | |
|
|
187 | } |
|
|
188 | |
|
|
189 | static void |
|
|
190 | downheap (WT *timers, int N, int k) |
|
|
191 | { |
|
|
192 | WT w = timers [k]; |
|
|
193 | |
|
|
194 | while (k < (N >> 1)) |
|
|
195 | { |
|
|
196 | int j = k << 1; |
|
|
197 | |
|
|
198 | if (j + 1 < N && timers [j]->at > timers [j + 1]->at) |
|
|
199 | ++j; |
|
|
200 | |
|
|
201 | if (w->at <= timers [j]->at) |
|
|
202 | break; |
|
|
203 | |
|
|
204 | timers [k] = timers [j]; |
|
|
205 | timers [k]->active = k + 1; |
|
|
206 | k = j; |
|
|
207 | } |
|
|
208 | |
|
|
209 | timers [k] = w; |
|
|
210 | timers [k]->active = k + 1; |
|
|
211 | } |
|
|
212 | |
|
|
213 | /*****************************************************************************/ |
|
|
214 | |
|
|
215 | typedef struct |
|
|
216 | { |
|
|
217 | struct ev_signal *head; |
|
|
218 | sig_atomic_t gotsig; |
657 | sig_atomic_t volatile gotsig; |
219 | } ANSIG; |
658 | } ANSIG; |
220 | |
659 | |
221 | static ANSIG *signals; |
660 | static ANSIG *signals; |
222 | static int signalmax; |
661 | static int signalmax; |
223 | |
662 | |
224 | static int sigpipe [2]; |
663 | static int sigpipe [2]; |
225 | static sig_atomic_t gotsig; |
664 | static sig_atomic_t volatile gotsig; |
226 | static struct ev_io sigev; |
665 | static ev_io sigev; |
227 | |
666 | |
228 | static void |
667 | void inline_size |
229 | signals_init (ANSIG *base, int count) |
668 | signals_init (ANSIG *base, int count) |
230 | { |
669 | { |
231 | while (count--) |
670 | while (count--) |
232 | { |
671 | { |
233 | base->head = 0; |
672 | base->head = 0; |
234 | base->gotsig = 0; |
673 | base->gotsig = 0; |
|
|
674 | |
235 | ++base; |
675 | ++base; |
236 | } |
676 | } |
237 | } |
677 | } |
238 | |
678 | |
239 | static void |
679 | static void |
240 | sighandler (int signum) |
680 | sighandler (int signum) |
241 | { |
681 | { |
|
|
682 | #if _WIN32 |
|
|
683 | signal (signum, sighandler); |
|
|
684 | #endif |
|
|
685 | |
242 | signals [signum - 1].gotsig = 1; |
686 | signals [signum - 1].gotsig = 1; |
243 | |
687 | |
244 | if (!gotsig) |
688 | if (!gotsig) |
245 | { |
689 | { |
|
|
690 | int old_errno = errno; |
246 | gotsig = 1; |
691 | gotsig = 1; |
247 | write (sigpipe [1], &gotsig, 1); |
692 | write (sigpipe [1], &signum, 1); |
|
|
693 | errno = old_errno; |
248 | } |
694 | } |
|
|
695 | } |
|
|
696 | |
|
|
697 | void noinline |
|
|
698 | ev_feed_signal_event (EV_P_ int signum) |
|
|
699 | { |
|
|
700 | WL w; |
|
|
701 | |
|
|
702 | #if EV_MULTIPLICITY |
|
|
703 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
704 | #endif |
|
|
705 | |
|
|
706 | --signum; |
|
|
707 | |
|
|
708 | if (signum < 0 || signum >= signalmax) |
|
|
709 | return; |
|
|
710 | |
|
|
711 | signals [signum].gotsig = 0; |
|
|
712 | |
|
|
713 | for (w = signals [signum].head; w; w = w->next) |
|
|
714 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
249 | } |
715 | } |
250 | |
716 | |
251 | static void |
717 | static void |
252 | sigcb (struct ev_io *iow, int revents) |
718 | sigcb (EV_P_ ev_io *iow, int revents) |
253 | { |
719 | { |
254 | struct ev_signal *w; |
|
|
255 | int sig; |
720 | int signum; |
256 | |
721 | |
|
|
722 | read (sigpipe [0], &revents, 1); |
257 | gotsig = 0; |
723 | gotsig = 0; |
258 | read (sigpipe [0], &revents, 1); |
|
|
259 | |
724 | |
260 | for (sig = signalmax; sig--; ) |
725 | for (signum = signalmax; signum--; ) |
261 | if (signals [sig].gotsig) |
726 | if (signals [signum].gotsig) |
|
|
727 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
728 | } |
|
|
729 | |
|
|
730 | void inline_size |
|
|
731 | fd_intern (int fd) |
|
|
732 | { |
|
|
733 | #ifdef _WIN32 |
|
|
734 | int arg = 1; |
|
|
735 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
736 | #else |
|
|
737 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
738 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
739 | #endif |
|
|
740 | } |
|
|
741 | |
|
|
742 | static void noinline |
|
|
743 | siginit (EV_P) |
|
|
744 | { |
|
|
745 | fd_intern (sigpipe [0]); |
|
|
746 | fd_intern (sigpipe [1]); |
|
|
747 | |
|
|
748 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
749 | ev_io_start (EV_A_ &sigev); |
|
|
750 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
|
|
751 | } |
|
|
752 | |
|
|
753 | /*****************************************************************************/ |
|
|
754 | |
|
|
755 | static ev_child *childs [EV_PID_HASHSIZE]; |
|
|
756 | |
|
|
757 | #ifndef _WIN32 |
|
|
758 | |
|
|
759 | static ev_signal childev; |
|
|
760 | |
|
|
761 | void inline_speed |
|
|
762 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
|
|
763 | { |
|
|
764 | ev_child *w; |
|
|
765 | |
|
|
766 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
767 | if (w->pid == pid || !w->pid) |
262 | { |
768 | { |
263 | signals [sig].gotsig = 0; |
769 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
264 | |
770 | w->rpid = pid; |
265 | for (w = signals [sig].head; w; w = w->next) |
771 | w->rstatus = status; |
266 | event ((W)w, EV_SIGNAL); |
772 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
267 | } |
773 | } |
268 | } |
774 | } |
269 | |
775 | |
|
|
776 | #ifndef WCONTINUED |
|
|
777 | # define WCONTINUED 0 |
|
|
778 | #endif |
|
|
779 | |
270 | static void |
780 | static void |
271 | siginit (void) |
781 | childcb (EV_P_ ev_signal *sw, int revents) |
272 | { |
782 | { |
273 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
783 | int pid, status; |
274 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
|
|
275 | |
784 | |
276 | /* rather than sort out wether we really need nb, set it */ |
785 | /* some systems define WCONTINUED but then fail to support it (linux 2.4) */ |
277 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
786 | if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
278 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
787 | if (!WCONTINUED |
|
|
788 | || errno != EINVAL |
|
|
789 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
|
|
790 | return; |
279 | |
791 | |
280 | evio_set (&sigev, sigpipe [0], EV_READ); |
792 | /* make sure we are called again until all childs have been reaped */ |
281 | evio_start (&sigev); |
793 | /* we need to do it this way so that the callback gets called before we continue */ |
|
|
794 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
|
|
795 | |
|
|
796 | child_reap (EV_A_ sw, pid, pid, status); |
|
|
797 | if (EV_PID_HASHSIZE > 1) |
|
|
798 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
282 | } |
799 | } |
|
|
800 | |
|
|
801 | #endif |
283 | |
802 | |
284 | /*****************************************************************************/ |
803 | /*****************************************************************************/ |
285 | |
804 | |
286 | static struct ev_idle **idles; |
805 | #if EV_USE_PORT |
287 | static int idlemax, idlecnt; |
806 | # include "ev_port.c" |
|
|
807 | #endif |
|
|
808 | #if EV_USE_KQUEUE |
|
|
809 | # include "ev_kqueue.c" |
|
|
810 | #endif |
|
|
811 | #if EV_USE_EPOLL |
|
|
812 | # include "ev_epoll.c" |
|
|
813 | #endif |
|
|
814 | #if EV_USE_POLL |
|
|
815 | # include "ev_poll.c" |
|
|
816 | #endif |
|
|
817 | #if EV_USE_SELECT |
|
|
818 | # include "ev_select.c" |
|
|
819 | #endif |
288 | |
820 | |
289 | static struct ev_check **checks; |
821 | int |
290 | static int checkmax, checkcnt; |
822 | ev_version_major (void) |
|
|
823 | { |
|
|
824 | return EV_VERSION_MAJOR; |
|
|
825 | } |
|
|
826 | |
|
|
827 | int |
|
|
828 | ev_version_minor (void) |
|
|
829 | { |
|
|
830 | return EV_VERSION_MINOR; |
|
|
831 | } |
|
|
832 | |
|
|
833 | /* return true if we are running with elevated privileges and should ignore env variables */ |
|
|
834 | int inline_size |
|
|
835 | enable_secure (void) |
|
|
836 | { |
|
|
837 | #ifdef _WIN32 |
|
|
838 | return 0; |
|
|
839 | #else |
|
|
840 | return getuid () != geteuid () |
|
|
841 | || getgid () != getegid (); |
|
|
842 | #endif |
|
|
843 | } |
|
|
844 | |
|
|
845 | unsigned int |
|
|
846 | ev_supported_backends (void) |
|
|
847 | { |
|
|
848 | unsigned int flags = 0; |
|
|
849 | |
|
|
850 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
|
|
851 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
|
|
852 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
853 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
854 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
|
|
855 | |
|
|
856 | return flags; |
|
|
857 | } |
|
|
858 | |
|
|
859 | unsigned int |
|
|
860 | ev_recommended_backends (void) |
|
|
861 | { |
|
|
862 | unsigned int flags = ev_supported_backends (); |
|
|
863 | |
|
|
864 | #ifndef __NetBSD__ |
|
|
865 | /* kqueue is borked on everything but netbsd apparently */ |
|
|
866 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
|
|
867 | flags &= ~EVBACKEND_KQUEUE; |
|
|
868 | #endif |
|
|
869 | #ifdef __APPLE__ |
|
|
870 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
|
|
871 | flags &= ~EVBACKEND_POLL; |
|
|
872 | #endif |
|
|
873 | |
|
|
874 | return flags; |
|
|
875 | } |
|
|
876 | |
|
|
877 | unsigned int |
|
|
878 | ev_embeddable_backends (void) |
|
|
879 | { |
|
|
880 | return EVBACKEND_EPOLL |
|
|
881 | | EVBACKEND_KQUEUE |
|
|
882 | | EVBACKEND_PORT; |
|
|
883 | } |
|
|
884 | |
|
|
885 | unsigned int |
|
|
886 | ev_backend (EV_P) |
|
|
887 | { |
|
|
888 | return backend; |
|
|
889 | } |
|
|
890 | |
|
|
891 | unsigned int |
|
|
892 | ev_loop_count (EV_P) |
|
|
893 | { |
|
|
894 | return loop_count; |
|
|
895 | } |
|
|
896 | |
|
|
897 | static void noinline |
|
|
898 | loop_init (EV_P_ unsigned int flags) |
|
|
899 | { |
|
|
900 | if (!backend) |
|
|
901 | { |
|
|
902 | #if EV_USE_MONOTONIC |
|
|
903 | { |
|
|
904 | struct timespec ts; |
|
|
905 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
|
|
906 | have_monotonic = 1; |
|
|
907 | } |
|
|
908 | #endif |
|
|
909 | |
|
|
910 | ev_rt_now = ev_time (); |
|
|
911 | mn_now = get_clock (); |
|
|
912 | now_floor = mn_now; |
|
|
913 | rtmn_diff = ev_rt_now - mn_now; |
|
|
914 | |
|
|
915 | /* pid check not overridable via env */ |
|
|
916 | #ifndef _WIN32 |
|
|
917 | if (flags & EVFLAG_FORKCHECK) |
|
|
918 | curpid = getpid (); |
|
|
919 | #endif |
|
|
920 | |
|
|
921 | if (!(flags & EVFLAG_NOENV) |
|
|
922 | && !enable_secure () |
|
|
923 | && getenv ("LIBEV_FLAGS")) |
|
|
924 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
925 | |
|
|
926 | if (!(flags & 0x0000ffffUL)) |
|
|
927 | flags |= ev_recommended_backends (); |
|
|
928 | |
|
|
929 | backend = 0; |
|
|
930 | backend_fd = -1; |
|
|
931 | #if EV_USE_INOTIFY |
|
|
932 | fs_fd = -2; |
|
|
933 | #endif |
|
|
934 | |
|
|
935 | #if EV_USE_PORT |
|
|
936 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
|
|
937 | #endif |
|
|
938 | #if EV_USE_KQUEUE |
|
|
939 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
|
|
940 | #endif |
|
|
941 | #if EV_USE_EPOLL |
|
|
942 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
|
|
943 | #endif |
|
|
944 | #if EV_USE_POLL |
|
|
945 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
|
|
946 | #endif |
|
|
947 | #if EV_USE_SELECT |
|
|
948 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
|
|
949 | #endif |
|
|
950 | |
|
|
951 | ev_init (&sigev, sigcb); |
|
|
952 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
953 | } |
|
|
954 | } |
|
|
955 | |
|
|
956 | static void noinline |
|
|
957 | loop_destroy (EV_P) |
|
|
958 | { |
|
|
959 | int i; |
|
|
960 | |
|
|
961 | #if EV_USE_INOTIFY |
|
|
962 | if (fs_fd >= 0) |
|
|
963 | close (fs_fd); |
|
|
964 | #endif |
|
|
965 | |
|
|
966 | if (backend_fd >= 0) |
|
|
967 | close (backend_fd); |
|
|
968 | |
|
|
969 | #if EV_USE_PORT |
|
|
970 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
|
|
971 | #endif |
|
|
972 | #if EV_USE_KQUEUE |
|
|
973 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
|
|
974 | #endif |
|
|
975 | #if EV_USE_EPOLL |
|
|
976 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
|
|
977 | #endif |
|
|
978 | #if EV_USE_POLL |
|
|
979 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
|
|
980 | #endif |
|
|
981 | #if EV_USE_SELECT |
|
|
982 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
|
|
983 | #endif |
|
|
984 | |
|
|
985 | for (i = NUMPRI; i--; ) |
|
|
986 | array_free (pending, [i]); |
|
|
987 | |
|
|
988 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
989 | array_free (fdchange, EMPTY0); |
|
|
990 | array_free (timer, EMPTY0); |
|
|
991 | #if EV_PERIODIC_ENABLE |
|
|
992 | array_free (periodic, EMPTY0); |
|
|
993 | #endif |
|
|
994 | array_free (idle, EMPTY0); |
|
|
995 | array_free (prepare, EMPTY0); |
|
|
996 | array_free (check, EMPTY0); |
|
|
997 | |
|
|
998 | backend = 0; |
|
|
999 | } |
|
|
1000 | |
|
|
1001 | void inline_size infy_fork (EV_P); |
|
|
1002 | |
|
|
1003 | void inline_size |
|
|
1004 | loop_fork (EV_P) |
|
|
1005 | { |
|
|
1006 | #if EV_USE_PORT |
|
|
1007 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
|
|
1008 | #endif |
|
|
1009 | #if EV_USE_KQUEUE |
|
|
1010 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
|
|
1011 | #endif |
|
|
1012 | #if EV_USE_EPOLL |
|
|
1013 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
|
|
1014 | #endif |
|
|
1015 | #if EV_USE_INOTIFY |
|
|
1016 | infy_fork (EV_A); |
|
|
1017 | #endif |
|
|
1018 | |
|
|
1019 | if (ev_is_active (&sigev)) |
|
|
1020 | { |
|
|
1021 | /* default loop */ |
|
|
1022 | |
|
|
1023 | ev_ref (EV_A); |
|
|
1024 | ev_io_stop (EV_A_ &sigev); |
|
|
1025 | close (sigpipe [0]); |
|
|
1026 | close (sigpipe [1]); |
|
|
1027 | |
|
|
1028 | while (pipe (sigpipe)) |
|
|
1029 | syserr ("(libev) error creating pipe"); |
|
|
1030 | |
|
|
1031 | siginit (EV_A); |
|
|
1032 | } |
|
|
1033 | |
|
|
1034 | postfork = 0; |
|
|
1035 | } |
|
|
1036 | |
|
|
1037 | #if EV_MULTIPLICITY |
|
|
1038 | struct ev_loop * |
|
|
1039 | ev_loop_new (unsigned int flags) |
|
|
1040 | { |
|
|
1041 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
|
|
1042 | |
|
|
1043 | memset (loop, 0, sizeof (struct ev_loop)); |
|
|
1044 | |
|
|
1045 | loop_init (EV_A_ flags); |
|
|
1046 | |
|
|
1047 | if (ev_backend (EV_A)) |
|
|
1048 | return loop; |
|
|
1049 | |
|
|
1050 | return 0; |
|
|
1051 | } |
|
|
1052 | |
|
|
1053 | void |
|
|
1054 | ev_loop_destroy (EV_P) |
|
|
1055 | { |
|
|
1056 | loop_destroy (EV_A); |
|
|
1057 | ev_free (loop); |
|
|
1058 | } |
|
|
1059 | |
|
|
1060 | void |
|
|
1061 | ev_loop_fork (EV_P) |
|
|
1062 | { |
|
|
1063 | postfork = 1; |
|
|
1064 | } |
|
|
1065 | |
|
|
1066 | #endif |
|
|
1067 | |
|
|
1068 | #if EV_MULTIPLICITY |
|
|
1069 | struct ev_loop * |
|
|
1070 | ev_default_loop_init (unsigned int flags) |
|
|
1071 | #else |
|
|
1072 | int |
|
|
1073 | ev_default_loop (unsigned int flags) |
|
|
1074 | #endif |
|
|
1075 | { |
|
|
1076 | if (sigpipe [0] == sigpipe [1]) |
|
|
1077 | if (pipe (sigpipe)) |
|
|
1078 | return 0; |
|
|
1079 | |
|
|
1080 | if (!ev_default_loop_ptr) |
|
|
1081 | { |
|
|
1082 | #if EV_MULTIPLICITY |
|
|
1083 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
|
|
1084 | #else |
|
|
1085 | ev_default_loop_ptr = 1; |
|
|
1086 | #endif |
|
|
1087 | |
|
|
1088 | loop_init (EV_A_ flags); |
|
|
1089 | |
|
|
1090 | if (ev_backend (EV_A)) |
|
|
1091 | { |
|
|
1092 | siginit (EV_A); |
|
|
1093 | |
|
|
1094 | #ifndef _WIN32 |
|
|
1095 | ev_signal_init (&childev, childcb, SIGCHLD); |
|
|
1096 | ev_set_priority (&childev, EV_MAXPRI); |
|
|
1097 | ev_signal_start (EV_A_ &childev); |
|
|
1098 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
|
|
1099 | #endif |
|
|
1100 | } |
|
|
1101 | else |
|
|
1102 | ev_default_loop_ptr = 0; |
|
|
1103 | } |
|
|
1104 | |
|
|
1105 | return ev_default_loop_ptr; |
|
|
1106 | } |
|
|
1107 | |
|
|
1108 | void |
|
|
1109 | ev_default_destroy (void) |
|
|
1110 | { |
|
|
1111 | #if EV_MULTIPLICITY |
|
|
1112 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1113 | #endif |
|
|
1114 | |
|
|
1115 | #ifndef _WIN32 |
|
|
1116 | ev_ref (EV_A); /* child watcher */ |
|
|
1117 | ev_signal_stop (EV_A_ &childev); |
|
|
1118 | #endif |
|
|
1119 | |
|
|
1120 | ev_ref (EV_A); /* signal watcher */ |
|
|
1121 | ev_io_stop (EV_A_ &sigev); |
|
|
1122 | |
|
|
1123 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1124 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1125 | |
|
|
1126 | loop_destroy (EV_A); |
|
|
1127 | } |
|
|
1128 | |
|
|
1129 | void |
|
|
1130 | ev_default_fork (void) |
|
|
1131 | { |
|
|
1132 | #if EV_MULTIPLICITY |
|
|
1133 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1134 | #endif |
|
|
1135 | |
|
|
1136 | if (backend) |
|
|
1137 | postfork = 1; |
|
|
1138 | } |
291 | |
1139 | |
292 | /*****************************************************************************/ |
1140 | /*****************************************************************************/ |
293 | |
1141 | |
294 | #if HAVE_EPOLL |
1142 | int inline_size |
295 | # include "ev_epoll.c" |
1143 | any_pending (EV_P) |
296 | #endif |
|
|
297 | #if HAVE_SELECT |
|
|
298 | # include "ev_select.c" |
|
|
299 | #endif |
|
|
300 | |
|
|
301 | int ev_init (int flags) |
|
|
302 | { |
1144 | { |
303 | #if HAVE_MONOTONIC |
1145 | int pri; |
304 | { |
|
|
305 | struct timespec ts; |
|
|
306 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
|
|
307 | have_monotonic = 1; |
|
|
308 | } |
|
|
309 | #endif |
|
|
310 | |
1146 | |
311 | ev_now = ev_time (); |
1147 | for (pri = NUMPRI; pri--; ) |
312 | now = get_clock (); |
1148 | if (pendingcnt [pri]) |
313 | diff = ev_now - now; |
1149 | return 1; |
314 | |
1150 | |
315 | if (pipe (sigpipe)) |
|
|
316 | return 0; |
1151 | return 0; |
317 | |
|
|
318 | ev_method = EVMETHOD_NONE; |
|
|
319 | #if HAVE_EPOLL |
|
|
320 | if (ev_method == EVMETHOD_NONE) epoll_init (flags); |
|
|
321 | #endif |
|
|
322 | #if HAVE_SELECT |
|
|
323 | if (ev_method == EVMETHOD_NONE) select_init (flags); |
|
|
324 | #endif |
|
|
325 | |
|
|
326 | if (ev_method) |
|
|
327 | { |
|
|
328 | evw_init (&sigev, sigcb); |
|
|
329 | siginit (); |
|
|
330 | } |
|
|
331 | |
|
|
332 | return ev_method; |
|
|
333 | } |
1152 | } |
334 | |
1153 | |
335 | /*****************************************************************************/ |
1154 | void inline_speed |
336 | |
1155 | call_pending (EV_P) |
337 | void ev_prefork (void) |
|
|
338 | { |
1156 | { |
339 | /* nop */ |
|
|
340 | } |
|
|
341 | |
|
|
342 | void ev_postfork_parent (void) |
|
|
343 | { |
|
|
344 | /* nop */ |
|
|
345 | } |
|
|
346 | |
|
|
347 | void ev_postfork_child (void) |
|
|
348 | { |
|
|
349 | #if HAVE_EPOLL |
|
|
350 | if (ev_method == EVMETHOD_EPOLL) |
|
|
351 | epoll_postfork_child (); |
|
|
352 | #endif |
|
|
353 | |
|
|
354 | evio_stop (&sigev); |
|
|
355 | close (sigpipe [0]); |
|
|
356 | close (sigpipe [1]); |
|
|
357 | pipe (sigpipe); |
|
|
358 | siginit (); |
|
|
359 | } |
|
|
360 | |
|
|
361 | /*****************************************************************************/ |
|
|
362 | |
|
|
363 | static void |
|
|
364 | fd_reify (void) |
|
|
365 | { |
|
|
366 | int i; |
1157 | int pri; |
367 | |
1158 | |
368 | for (i = 0; i < fdchangecnt; ++i) |
1159 | for (pri = NUMPRI; pri--; ) |
|
|
1160 | while (pendingcnt [pri]) |
369 | { |
1161 | { |
370 | int fd = fdchanges [i]; |
1162 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
371 | ANFD *anfd = anfds + fd; |
|
|
372 | struct ev_io *w; |
|
|
373 | |
1163 | |
374 | int wev = 0; |
1164 | if (expect_true (p->w)) |
375 | |
|
|
376 | for (w = anfd->head; w; w = w->next) |
|
|
377 | wev |= w->events; |
|
|
378 | |
|
|
379 | if (anfd->wev != wev) |
|
|
380 | { |
1165 | { |
381 | method_modify (fd, anfd->wev, wev); |
1166 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
382 | anfd->wev = wev; |
|
|
383 | } |
|
|
384 | } |
|
|
385 | |
1167 | |
386 | fdchangecnt = 0; |
|
|
387 | } |
|
|
388 | |
|
|
389 | static void |
|
|
390 | call_pending () |
|
|
391 | { |
|
|
392 | int i; |
|
|
393 | |
|
|
394 | for (i = 0; i < pendingcnt; ++i) |
|
|
395 | { |
|
|
396 | ANPENDING *p = pendings + i; |
|
|
397 | |
|
|
398 | if (p->w) |
|
|
399 | { |
|
|
400 | p->w->pending = 0; |
1168 | p->w->pending = 0; |
401 | p->w->cb (p->w, p->events); |
1169 | EV_CB_INVOKE (p->w, p->events); |
402 | } |
1170 | } |
403 | } |
1171 | } |
404 | |
|
|
405 | pendingcnt = 0; |
|
|
406 | } |
1172 | } |
407 | |
1173 | |
408 | static void |
1174 | void inline_size |
409 | timers_reify () |
1175 | timers_reify (EV_P) |
410 | { |
1176 | { |
411 | while (timercnt && timers [0]->at <= now) |
1177 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
412 | { |
1178 | { |
413 | struct ev_timer *w = timers [0]; |
1179 | ev_timer *w = timers [0]; |
414 | |
1180 | |
415 | event ((W)w, EV_TIMEOUT); |
1181 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
416 | |
1182 | |
417 | /* first reschedule or stop timer */ |
1183 | /* first reschedule or stop timer */ |
418 | if (w->repeat) |
1184 | if (w->repeat) |
419 | { |
1185 | { |
|
|
1186 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1187 | |
420 | w->at = now + w->repeat; |
1188 | ((WT)w)->at += w->repeat; |
421 | assert (("timer timeout in the past, negative repeat?", w->at > now)); |
1189 | if (((WT)w)->at < mn_now) |
|
|
1190 | ((WT)w)->at = mn_now; |
|
|
1191 | |
422 | downheap ((WT *)timers, timercnt, 0); |
1192 | downheap ((WT *)timers, timercnt, 0); |
423 | } |
1193 | } |
424 | else |
1194 | else |
425 | evtimer_stop (w); /* nonrepeating: stop timer */ |
1195 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
426 | } |
|
|
427 | } |
|
|
428 | |
1196 | |
429 | static void |
1197 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1198 | } |
|
|
1199 | } |
|
|
1200 | |
|
|
1201 | #if EV_PERIODIC_ENABLE |
|
|
1202 | void inline_size |
430 | periodics_reify () |
1203 | periodics_reify (EV_P) |
431 | { |
1204 | { |
432 | while (periodiccnt && periodics [0]->at <= ev_now) |
1205 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
433 | { |
1206 | { |
434 | struct ev_periodic *w = periodics [0]; |
1207 | ev_periodic *w = periodics [0]; |
|
|
1208 | |
|
|
1209 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
435 | |
1210 | |
436 | /* first reschedule or stop timer */ |
1211 | /* first reschedule or stop timer */ |
437 | if (w->interval) |
1212 | if (w->reschedule_cb) |
438 | { |
1213 | { |
|
|
1214 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
|
|
1215 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1216 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1217 | } |
|
|
1218 | else if (w->interval) |
|
|
1219 | { |
439 | w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval; |
1220 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
440 | assert (("periodic timeout in the past, negative interval?", w->at > ev_now)); |
1221 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
441 | downheap ((WT *)periodics, periodiccnt, 0); |
1222 | downheap ((WT *)periodics, periodiccnt, 0); |
442 | } |
1223 | } |
443 | else |
1224 | else |
444 | evperiodic_stop (w); /* nonrepeating: stop timer */ |
1225 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
445 | |
1226 | |
446 | event ((W)w, EV_TIMEOUT); |
1227 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
447 | } |
1228 | } |
448 | } |
1229 | } |
449 | |
1230 | |
450 | static void |
1231 | static void noinline |
451 | periodics_reschedule (ev_tstamp diff) |
1232 | periodics_reschedule (EV_P) |
452 | { |
1233 | { |
453 | int i; |
1234 | int i; |
454 | |
1235 | |
455 | /* adjust periodics after time jump */ |
1236 | /* adjust periodics after time jump */ |
456 | for (i = 0; i < periodiccnt; ++i) |
1237 | for (i = 0; i < periodiccnt; ++i) |
457 | { |
1238 | { |
458 | struct ev_periodic *w = periodics [i]; |
1239 | ev_periodic *w = periodics [i]; |
459 | |
1240 | |
|
|
1241 | if (w->reschedule_cb) |
|
|
1242 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
460 | if (w->interval) |
1243 | else if (w->interval) |
|
|
1244 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
|
|
1245 | } |
|
|
1246 | |
|
|
1247 | /* now rebuild the heap */ |
|
|
1248 | for (i = periodiccnt >> 1; i--; ) |
|
|
1249 | downheap ((WT *)periodics, periodiccnt, i); |
|
|
1250 | } |
|
|
1251 | #endif |
|
|
1252 | |
|
|
1253 | int inline_size |
|
|
1254 | time_update_monotonic (EV_P) |
|
|
1255 | { |
|
|
1256 | mn_now = get_clock (); |
|
|
1257 | |
|
|
1258 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
|
|
1259 | { |
|
|
1260 | ev_rt_now = rtmn_diff + mn_now; |
|
|
1261 | return 0; |
|
|
1262 | } |
|
|
1263 | else |
|
|
1264 | { |
|
|
1265 | now_floor = mn_now; |
|
|
1266 | ev_rt_now = ev_time (); |
|
|
1267 | return 1; |
|
|
1268 | } |
|
|
1269 | } |
|
|
1270 | |
|
|
1271 | void inline_size |
|
|
1272 | time_update (EV_P) |
|
|
1273 | { |
|
|
1274 | int i; |
|
|
1275 | |
|
|
1276 | #if EV_USE_MONOTONIC |
|
|
1277 | if (expect_true (have_monotonic)) |
|
|
1278 | { |
|
|
1279 | if (time_update_monotonic (EV_A)) |
461 | { |
1280 | { |
462 | ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval; |
1281 | ev_tstamp odiff = rtmn_diff; |
463 | |
1282 | |
464 | if (fabs (diff) >= 1e-4) |
1283 | /* loop a few times, before making important decisions. |
|
|
1284 | * on the choice of "4": one iteration isn't enough, |
|
|
1285 | * in case we get preempted during the calls to |
|
|
1286 | * ev_time and get_clock. a second call is almost guaranteed |
|
|
1287 | * to succeed in that case, though. and looping a few more times |
|
|
1288 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1289 | * in the unlikely event of having been preempted here. |
|
|
1290 | */ |
|
|
1291 | for (i = 4; --i; ) |
465 | { |
1292 | { |
466 | evperiodic_stop (w); |
1293 | rtmn_diff = ev_rt_now - mn_now; |
467 | evperiodic_start (w); |
|
|
468 | |
1294 | |
469 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
1295 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
|
|
1296 | return; /* all is well */ |
|
|
1297 | |
|
|
1298 | ev_rt_now = ev_time (); |
|
|
1299 | mn_now = get_clock (); |
|
|
1300 | now_floor = mn_now; |
470 | } |
1301 | } |
|
|
1302 | |
|
|
1303 | # if EV_PERIODIC_ENABLE |
|
|
1304 | periodics_reschedule (EV_A); |
|
|
1305 | # endif |
|
|
1306 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1307 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
471 | } |
1308 | } |
472 | } |
1309 | } |
473 | } |
1310 | else |
474 | |
1311 | #endif |
475 | static void |
1312 | { |
476 | time_update () |
|
|
477 | { |
|
|
478 | int i; |
|
|
479 | |
|
|
480 | ev_now = ev_time (); |
1313 | ev_rt_now = ev_time (); |
481 | |
1314 | |
482 | if (have_monotonic) |
1315 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
483 | { |
|
|
484 | ev_tstamp odiff = diff; |
|
|
485 | |
|
|
486 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
|
|
487 | { |
1316 | { |
488 | now = get_clock (); |
1317 | #if EV_PERIODIC_ENABLE |
489 | diff = ev_now - now; |
1318 | periodics_reschedule (EV_A); |
|
|
1319 | #endif |
490 | |
1320 | |
491 | if (fabs (odiff - diff) < MIN_TIMEJUMP) |
1321 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
492 | return; /* all is well */ |
1322 | for (i = 0; i < timercnt; ++i) |
493 | |
1323 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
494 | ev_now = ev_time (); |
|
|
495 | } |
1324 | } |
496 | |
1325 | |
497 | periodics_reschedule (diff - odiff); |
1326 | mn_now = ev_rt_now; |
498 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
499 | } |
|
|
500 | else |
|
|
501 | { |
1327 | } |
502 | if (now > ev_now || now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP) |
1328 | } |
|
|
1329 | |
|
|
1330 | void |
|
|
1331 | ev_ref (EV_P) |
|
|
1332 | { |
|
|
1333 | ++activecnt; |
|
|
1334 | } |
|
|
1335 | |
|
|
1336 | void |
|
|
1337 | ev_unref (EV_P) |
|
|
1338 | { |
|
|
1339 | --activecnt; |
|
|
1340 | } |
|
|
1341 | |
|
|
1342 | static int loop_done; |
|
|
1343 | |
|
|
1344 | void |
|
|
1345 | ev_loop (EV_P_ int flags) |
|
|
1346 | { |
|
|
1347 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
|
|
1348 | ? EVUNLOOP_ONE |
|
|
1349 | : EVUNLOOP_CANCEL; |
|
|
1350 | |
|
|
1351 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
|
|
1352 | |
|
|
1353 | do |
|
|
1354 | { |
|
|
1355 | #ifndef _WIN32 |
|
|
1356 | if (expect_false (curpid)) /* penalise the forking check even more */ |
|
|
1357 | if (expect_false (getpid () != curpid)) |
|
|
1358 | { |
|
|
1359 | curpid = getpid (); |
|
|
1360 | postfork = 1; |
|
|
1361 | } |
|
|
1362 | #endif |
|
|
1363 | |
|
|
1364 | #if EV_FORK_ENABLE |
|
|
1365 | /* we might have forked, so queue fork handlers */ |
|
|
1366 | if (expect_false (postfork)) |
|
|
1367 | if (forkcnt) |
|
|
1368 | { |
|
|
1369 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
|
|
1370 | call_pending (EV_A); |
|
|
1371 | } |
|
|
1372 | #endif |
|
|
1373 | |
|
|
1374 | /* queue check watchers (and execute them) */ |
|
|
1375 | if (expect_false (preparecnt)) |
503 | { |
1376 | { |
504 | periodics_reschedule (ev_now - now); |
1377 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
505 | |
1378 | call_pending (EV_A); |
506 | /* adjust timers. this is easy, as the offset is the same for all */ |
|
|
507 | for (i = 0; i < timercnt; ++i) |
|
|
508 | timers [i]->at += diff; |
|
|
509 | } |
1379 | } |
510 | |
1380 | |
511 | now = ev_now; |
1381 | if (expect_false (!activecnt)) |
512 | } |
1382 | break; |
513 | } |
|
|
514 | |
1383 | |
515 | int ev_loop_done; |
1384 | /* we might have forked, so reify kernel state if necessary */ |
|
|
1385 | if (expect_false (postfork)) |
|
|
1386 | loop_fork (EV_A); |
516 | |
1387 | |
517 | void ev_loop (int flags) |
|
|
518 | { |
|
|
519 | double block; |
|
|
520 | ev_loop_done = flags & EVLOOP_ONESHOT ? 1 : 0; |
|
|
521 | |
|
|
522 | if (checkcnt) |
|
|
523 | { |
|
|
524 | queue_events ((W *)checks, checkcnt, EV_CHECK); |
|
|
525 | call_pending (); |
|
|
526 | } |
|
|
527 | |
|
|
528 | do |
|
|
529 | { |
|
|
530 | /* update fd-related kernel structures */ |
1388 | /* update fd-related kernel structures */ |
531 | fd_reify (); |
1389 | fd_reify (EV_A); |
532 | |
1390 | |
533 | /* calculate blocking time */ |
1391 | /* calculate blocking time */ |
|
|
1392 | { |
|
|
1393 | ev_tstamp block; |
534 | |
1394 | |
535 | /* we only need this for !monotonic clock, but as we always have timers, we just calculate it every time */ |
1395 | if (expect_false (flags & EVLOOP_NONBLOCK || idlecnt || !activecnt)) |
536 | ev_now = ev_time (); |
1396 | block = 0.; /* do not block at all */ |
537 | |
|
|
538 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
|
|
539 | block = 0.; |
|
|
540 | else |
1397 | else |
541 | { |
1398 | { |
|
|
1399 | /* update time to cancel out callback processing overhead */ |
|
|
1400 | #if EV_USE_MONOTONIC |
|
|
1401 | if (expect_true (have_monotonic)) |
|
|
1402 | time_update_monotonic (EV_A); |
|
|
1403 | else |
|
|
1404 | #endif |
|
|
1405 | { |
|
|
1406 | ev_rt_now = ev_time (); |
|
|
1407 | mn_now = ev_rt_now; |
|
|
1408 | } |
|
|
1409 | |
542 | block = MAX_BLOCKTIME; |
1410 | block = MAX_BLOCKTIME; |
543 | |
1411 | |
544 | if (timercnt) |
1412 | if (timercnt) |
545 | { |
1413 | { |
546 | ev_tstamp to = timers [0]->at - (have_monotonic ? get_clock () : ev_now) + method_fudge; |
1414 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
547 | if (block > to) block = to; |
1415 | if (block > to) block = to; |
548 | } |
1416 | } |
549 | |
1417 | |
|
|
1418 | #if EV_PERIODIC_ENABLE |
550 | if (periodiccnt) |
1419 | if (periodiccnt) |
551 | { |
1420 | { |
552 | ev_tstamp to = periodics [0]->at - ev_now + method_fudge; |
1421 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
553 | if (block > to) block = to; |
1422 | if (block > to) block = to; |
554 | } |
1423 | } |
|
|
1424 | #endif |
555 | |
1425 | |
556 | if (block < 0.) block = 0.; |
1426 | if (expect_false (block < 0.)) block = 0.; |
557 | } |
1427 | } |
558 | |
1428 | |
559 | method_poll (block); |
1429 | ++loop_count; |
|
|
1430 | backend_poll (EV_A_ block); |
|
|
1431 | } |
560 | |
1432 | |
561 | /* update ev_now, do magic */ |
1433 | /* update ev_rt_now, do magic */ |
562 | time_update (); |
1434 | time_update (EV_A); |
563 | |
1435 | |
564 | /* queue pending timers and reschedule them */ |
1436 | /* queue pending timers and reschedule them */ |
|
|
1437 | timers_reify (EV_A); /* relative timers called last */ |
|
|
1438 | #if EV_PERIODIC_ENABLE |
565 | periodics_reify (); /* absolute timers first */ |
1439 | periodics_reify (EV_A); /* absolute timers called first */ |
566 | timers_reify (); /* relative timers second */ |
1440 | #endif |
567 | |
1441 | |
568 | /* queue idle watchers unless io or timers are pending */ |
1442 | /* queue idle watchers unless other events are pending */ |
569 | if (!pendingcnt) |
1443 | if (idlecnt && !any_pending (EV_A)) |
570 | queue_events ((W *)idles, idlecnt, EV_IDLE); |
1444 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
571 | |
1445 | |
572 | /* queue check and possibly idle watchers */ |
1446 | /* queue check watchers, to be executed first */ |
|
|
1447 | if (expect_false (checkcnt)) |
573 | queue_events ((W *)checks, checkcnt, EV_CHECK); |
1448 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
574 | |
1449 | |
575 | call_pending (); |
1450 | call_pending (EV_A); |
576 | } |
|
|
577 | while (!ev_loop_done); |
|
|
578 | |
1451 | |
579 | if (ev_loop_done != 2) |
1452 | } |
|
|
1453 | while (expect_true (activecnt && !loop_done)); |
|
|
1454 | |
|
|
1455 | if (loop_done == EVUNLOOP_ONE) |
|
|
1456 | loop_done = EVUNLOOP_CANCEL; |
|
|
1457 | } |
|
|
1458 | |
|
|
1459 | void |
|
|
1460 | ev_unloop (EV_P_ int how) |
|
|
1461 | { |
580 | ev_loop_done = 0; |
1462 | loop_done = how; |
581 | } |
1463 | } |
582 | |
1464 | |
583 | /*****************************************************************************/ |
1465 | /*****************************************************************************/ |
584 | |
1466 | |
585 | static void |
1467 | void inline_size |
586 | wlist_add (WL *head, WL elem) |
1468 | wlist_add (WL *head, WL elem) |
587 | { |
1469 | { |
588 | elem->next = *head; |
1470 | elem->next = *head; |
589 | *head = elem; |
1471 | *head = elem; |
590 | } |
1472 | } |
591 | |
1473 | |
592 | static void |
1474 | void inline_size |
593 | wlist_del (WL *head, WL elem) |
1475 | wlist_del (WL *head, WL elem) |
594 | { |
1476 | { |
595 | while (*head) |
1477 | while (*head) |
596 | { |
1478 | { |
597 | if (*head == elem) |
1479 | if (*head == elem) |
… | |
… | |
602 | |
1484 | |
603 | head = &(*head)->next; |
1485 | head = &(*head)->next; |
604 | } |
1486 | } |
605 | } |
1487 | } |
606 | |
1488 | |
607 | static void |
1489 | void inline_speed |
608 | ev_clear (W w) |
1490 | ev_clear_pending (EV_P_ W w) |
609 | { |
1491 | { |
610 | if (w->pending) |
1492 | if (w->pending) |
611 | { |
1493 | { |
612 | pendings [w->pending - 1].w = 0; |
1494 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
613 | w->pending = 0; |
1495 | w->pending = 0; |
614 | } |
1496 | } |
615 | } |
1497 | } |
616 | |
1498 | |
617 | static void |
1499 | void inline_speed |
618 | ev_start (W w, int active) |
1500 | ev_start (EV_P_ W w, int active) |
619 | { |
1501 | { |
|
|
1502 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
|
|
1503 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
1504 | |
620 | w->active = active; |
1505 | w->active = active; |
|
|
1506 | ev_ref (EV_A); |
621 | } |
1507 | } |
622 | |
1508 | |
623 | static void |
1509 | void inline_size |
624 | ev_stop (W w) |
1510 | ev_stop (EV_P_ W w) |
625 | { |
1511 | { |
|
|
1512 | ev_unref (EV_A); |
626 | w->active = 0; |
1513 | w->active = 0; |
627 | } |
1514 | } |
628 | |
1515 | |
629 | /*****************************************************************************/ |
1516 | /*****************************************************************************/ |
630 | |
1517 | |
631 | void |
1518 | void |
632 | evio_start (struct ev_io *w) |
1519 | ev_io_start (EV_P_ ev_io *w) |
633 | { |
1520 | { |
634 | if (ev_is_active (w)) |
|
|
635 | return; |
|
|
636 | |
|
|
637 | int fd = w->fd; |
1521 | int fd = w->fd; |
638 | |
1522 | |
|
|
1523 | if (expect_false (ev_is_active (w))) |
|
|
1524 | return; |
|
|
1525 | |
|
|
1526 | assert (("ev_io_start called with negative fd", fd >= 0)); |
|
|
1527 | |
639 | ev_start ((W)w, 1); |
1528 | ev_start (EV_A_ (W)w, 1); |
640 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
1529 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
641 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1530 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
642 | |
1531 | |
643 | ++fdchangecnt; |
1532 | fd_change (EV_A_ fd); |
644 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
|
|
645 | fdchanges [fdchangecnt - 1] = fd; |
|
|
646 | } |
1533 | } |
647 | |
1534 | |
648 | void |
1535 | void |
649 | evio_stop (struct ev_io *w) |
1536 | ev_io_stop (EV_P_ ev_io *w) |
650 | { |
1537 | { |
651 | ev_clear ((W)w); |
1538 | ev_clear_pending (EV_A_ (W)w); |
652 | if (!ev_is_active (w)) |
1539 | if (expect_false (!ev_is_active (w))) |
653 | return; |
1540 | return; |
|
|
1541 | |
|
|
1542 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
654 | |
1543 | |
655 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1544 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
656 | ev_stop ((W)w); |
1545 | ev_stop (EV_A_ (W)w); |
657 | |
1546 | |
658 | ++fdchangecnt; |
1547 | fd_change (EV_A_ w->fd); |
659 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
|
|
660 | fdchanges [fdchangecnt - 1] = w->fd; |
|
|
661 | } |
1548 | } |
662 | |
1549 | |
663 | void |
1550 | void |
664 | evtimer_start (struct ev_timer *w) |
1551 | ev_timer_start (EV_P_ ev_timer *w) |
665 | { |
1552 | { |
666 | if (ev_is_active (w)) |
1553 | if (expect_false (ev_is_active (w))) |
667 | return; |
1554 | return; |
668 | |
1555 | |
669 | w->at += now; |
1556 | ((WT)w)->at += mn_now; |
670 | |
1557 | |
671 | assert (("timer repeat value less than zero not allowed", w->repeat >= 0.)); |
1558 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
672 | |
1559 | |
673 | ev_start ((W)w, ++timercnt); |
1560 | ev_start (EV_A_ (W)w, ++timercnt); |
674 | array_needsize (timers, timermax, timercnt, ); |
1561 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
675 | timers [timercnt - 1] = w; |
1562 | timers [timercnt - 1] = w; |
676 | upheap ((WT *)timers, timercnt - 1); |
1563 | upheap ((WT *)timers, timercnt - 1); |
677 | } |
|
|
678 | |
1564 | |
|
|
1565 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
|
|
1566 | } |
|
|
1567 | |
679 | void |
1568 | void |
680 | evtimer_stop (struct ev_timer *w) |
1569 | ev_timer_stop (EV_P_ ev_timer *w) |
681 | { |
1570 | { |
682 | ev_clear ((W)w); |
1571 | ev_clear_pending (EV_A_ (W)w); |
683 | if (!ev_is_active (w)) |
1572 | if (expect_false (!ev_is_active (w))) |
684 | return; |
1573 | return; |
685 | |
1574 | |
686 | if (w->active < timercnt--) |
1575 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1576 | |
|
|
1577 | { |
|
|
1578 | int active = ((W)w)->active; |
|
|
1579 | |
|
|
1580 | if (expect_true (--active < --timercnt)) |
687 | { |
1581 | { |
688 | timers [w->active - 1] = timers [timercnt]; |
1582 | timers [active] = timers [timercnt]; |
689 | downheap ((WT *)timers, timercnt, w->active - 1); |
1583 | adjustheap ((WT *)timers, timercnt, active); |
690 | } |
1584 | } |
|
|
1585 | } |
691 | |
1586 | |
692 | w->at = w->repeat; |
1587 | ((WT)w)->at -= mn_now; |
693 | |
1588 | |
694 | ev_stop ((W)w); |
1589 | ev_stop (EV_A_ (W)w); |
695 | } |
1590 | } |
696 | |
1591 | |
697 | void |
1592 | void |
698 | evtimer_again (struct ev_timer *w) |
1593 | ev_timer_again (EV_P_ ev_timer *w) |
699 | { |
1594 | { |
700 | if (ev_is_active (w)) |
1595 | if (ev_is_active (w)) |
701 | { |
1596 | { |
702 | if (w->repeat) |
1597 | if (w->repeat) |
703 | { |
1598 | { |
704 | w->at = now + w->repeat; |
1599 | ((WT)w)->at = mn_now + w->repeat; |
705 | downheap ((WT *)timers, timercnt, w->active - 1); |
1600 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
706 | } |
1601 | } |
707 | else |
1602 | else |
708 | evtimer_stop (w); |
1603 | ev_timer_stop (EV_A_ w); |
709 | } |
1604 | } |
710 | else if (w->repeat) |
1605 | else if (w->repeat) |
|
|
1606 | { |
|
|
1607 | w->at = w->repeat; |
711 | evtimer_start (w); |
1608 | ev_timer_start (EV_A_ w); |
|
|
1609 | } |
712 | } |
1610 | } |
713 | |
1611 | |
|
|
1612 | #if EV_PERIODIC_ENABLE |
714 | void |
1613 | void |
715 | evperiodic_start (struct ev_periodic *w) |
1614 | ev_periodic_start (EV_P_ ev_periodic *w) |
716 | { |
1615 | { |
717 | if (ev_is_active (w)) |
1616 | if (expect_false (ev_is_active (w))) |
718 | return; |
1617 | return; |
719 | |
1618 | |
720 | assert (("periodic interval value less than zero not allowed", w->interval >= 0.)); |
1619 | if (w->reschedule_cb) |
721 | |
1620 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1621 | else if (w->interval) |
|
|
1622 | { |
|
|
1623 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
722 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1624 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
723 | if (w->interval) |
|
|
724 | w->at += ceil ((ev_now - w->at) / w->interval) * w->interval; |
1625 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
|
|
1626 | } |
725 | |
1627 | |
726 | ev_start ((W)w, ++periodiccnt); |
1628 | ev_start (EV_A_ (W)w, ++periodiccnt); |
727 | array_needsize (periodics, periodicmax, periodiccnt, ); |
1629 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
728 | periodics [periodiccnt - 1] = w; |
1630 | periodics [periodiccnt - 1] = w; |
729 | upheap ((WT *)periodics, periodiccnt - 1); |
1631 | upheap ((WT *)periodics, periodiccnt - 1); |
730 | } |
|
|
731 | |
1632 | |
|
|
1633 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
|
|
1634 | } |
|
|
1635 | |
732 | void |
1636 | void |
733 | evperiodic_stop (struct ev_periodic *w) |
1637 | ev_periodic_stop (EV_P_ ev_periodic *w) |
734 | { |
1638 | { |
735 | ev_clear ((W)w); |
1639 | ev_clear_pending (EV_A_ (W)w); |
736 | if (!ev_is_active (w)) |
1640 | if (expect_false (!ev_is_active (w))) |
737 | return; |
1641 | return; |
738 | |
1642 | |
739 | if (w->active < periodiccnt--) |
1643 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
|
|
1644 | |
|
|
1645 | { |
|
|
1646 | int active = ((W)w)->active; |
|
|
1647 | |
|
|
1648 | if (expect_true (--active < --periodiccnt)) |
740 | { |
1649 | { |
741 | periodics [w->active - 1] = periodics [periodiccnt]; |
1650 | periodics [active] = periodics [periodiccnt]; |
742 | downheap ((WT *)periodics, periodiccnt, w->active - 1); |
1651 | adjustheap ((WT *)periodics, periodiccnt, active); |
743 | } |
1652 | } |
|
|
1653 | } |
744 | |
1654 | |
745 | ev_stop ((W)w); |
1655 | ev_stop (EV_A_ (W)w); |
746 | } |
1656 | } |
747 | |
1657 | |
748 | void |
1658 | void |
|
|
1659 | ev_periodic_again (EV_P_ ev_periodic *w) |
|
|
1660 | { |
|
|
1661 | /* TODO: use adjustheap and recalculation */ |
|
|
1662 | ev_periodic_stop (EV_A_ w); |
|
|
1663 | ev_periodic_start (EV_A_ w); |
|
|
1664 | } |
|
|
1665 | #endif |
|
|
1666 | |
|
|
1667 | #ifndef SA_RESTART |
|
|
1668 | # define SA_RESTART 0 |
|
|
1669 | #endif |
|
|
1670 | |
|
|
1671 | void |
749 | evsignal_start (struct ev_signal *w) |
1672 | ev_signal_start (EV_P_ ev_signal *w) |
750 | { |
1673 | { |
|
|
1674 | #if EV_MULTIPLICITY |
|
|
1675 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1676 | #endif |
751 | if (ev_is_active (w)) |
1677 | if (expect_false (ev_is_active (w))) |
752 | return; |
1678 | return; |
753 | |
1679 | |
|
|
1680 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
|
|
1681 | |
754 | ev_start ((W)w, 1); |
1682 | ev_start (EV_A_ (W)w, 1); |
755 | array_needsize (signals, signalmax, w->signum, signals_init); |
1683 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
756 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1684 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
757 | |
1685 | |
758 | if (!w->next) |
1686 | if (!((WL)w)->next) |
759 | { |
1687 | { |
|
|
1688 | #if _WIN32 |
|
|
1689 | signal (w->signum, sighandler); |
|
|
1690 | #else |
760 | struct sigaction sa; |
1691 | struct sigaction sa; |
761 | sa.sa_handler = sighandler; |
1692 | sa.sa_handler = sighandler; |
762 | sigfillset (&sa.sa_mask); |
1693 | sigfillset (&sa.sa_mask); |
763 | sa.sa_flags = 0; |
1694 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
764 | sigaction (w->signum, &sa, 0); |
1695 | sigaction (w->signum, &sa, 0); |
|
|
1696 | #endif |
765 | } |
1697 | } |
766 | } |
1698 | } |
767 | |
1699 | |
768 | void |
1700 | void |
769 | evsignal_stop (struct ev_signal *w) |
1701 | ev_signal_stop (EV_P_ ev_signal *w) |
770 | { |
1702 | { |
771 | ev_clear ((W)w); |
1703 | ev_clear_pending (EV_A_ (W)w); |
772 | if (!ev_is_active (w)) |
1704 | if (expect_false (!ev_is_active (w))) |
773 | return; |
1705 | return; |
774 | |
1706 | |
775 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1707 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
776 | ev_stop ((W)w); |
1708 | ev_stop (EV_A_ (W)w); |
777 | |
1709 | |
778 | if (!signals [w->signum - 1].head) |
1710 | if (!signals [w->signum - 1].head) |
779 | signal (w->signum, SIG_DFL); |
1711 | signal (w->signum, SIG_DFL); |
780 | } |
1712 | } |
781 | |
1713 | |
782 | void evidle_start (struct ev_idle *w) |
1714 | void |
|
|
1715 | ev_child_start (EV_P_ ev_child *w) |
783 | { |
1716 | { |
|
|
1717 | #if EV_MULTIPLICITY |
|
|
1718 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1719 | #endif |
784 | if (ev_is_active (w)) |
1720 | if (expect_false (ev_is_active (w))) |
785 | return; |
1721 | return; |
786 | |
1722 | |
|
|
1723 | ev_start (EV_A_ (W)w, 1); |
|
|
1724 | wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
1725 | } |
|
|
1726 | |
|
|
1727 | void |
|
|
1728 | ev_child_stop (EV_P_ ev_child *w) |
|
|
1729 | { |
|
|
1730 | ev_clear_pending (EV_A_ (W)w); |
|
|
1731 | if (expect_false (!ev_is_active (w))) |
|
|
1732 | return; |
|
|
1733 | |
|
|
1734 | wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
1735 | ev_stop (EV_A_ (W)w); |
|
|
1736 | } |
|
|
1737 | |
|
|
1738 | #if EV_STAT_ENABLE |
|
|
1739 | |
|
|
1740 | # ifdef _WIN32 |
|
|
1741 | # undef lstat |
|
|
1742 | # define lstat(a,b) _stati64 (a,b) |
|
|
1743 | # endif |
|
|
1744 | |
|
|
1745 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
1746 | #define MIN_STAT_INTERVAL 0.1074891 |
|
|
1747 | |
|
|
1748 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
|
|
1749 | |
|
|
1750 | #if EV_USE_INOTIFY |
|
|
1751 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
1752 | |
|
|
1753 | static void noinline |
|
|
1754 | infy_add (EV_P_ ev_stat *w) |
|
|
1755 | { |
|
|
1756 | 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); |
|
|
1757 | |
|
|
1758 | if (w->wd < 0) |
|
|
1759 | { |
|
|
1760 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
1761 | |
|
|
1762 | /* monitor some parent directory for speedup hints */ |
|
|
1763 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
|
|
1764 | { |
|
|
1765 | char path [4096]; |
|
|
1766 | strcpy (path, w->path); |
|
|
1767 | |
|
|
1768 | do |
|
|
1769 | { |
|
|
1770 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
|
|
1771 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
|
|
1772 | |
|
|
1773 | char *pend = strrchr (path, '/'); |
|
|
1774 | |
|
|
1775 | if (!pend) |
|
|
1776 | break; /* whoops, no '/', complain to your admin */ |
|
|
1777 | |
|
|
1778 | *pend = 0; |
|
|
1779 | w->wd = inotify_add_watch (fs_fd, path, mask); |
|
|
1780 | } |
|
|
1781 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
|
|
1782 | } |
|
|
1783 | } |
|
|
1784 | else |
|
|
1785 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
1786 | |
|
|
1787 | if (w->wd >= 0) |
|
|
1788 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
1789 | } |
|
|
1790 | |
|
|
1791 | static void noinline |
|
|
1792 | infy_del (EV_P_ ev_stat *w) |
|
|
1793 | { |
|
|
1794 | int slot; |
|
|
1795 | int wd = w->wd; |
|
|
1796 | |
|
|
1797 | if (wd < 0) |
|
|
1798 | return; |
|
|
1799 | |
|
|
1800 | w->wd = -2; |
|
|
1801 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
|
|
1802 | wlist_del (&fs_hash [slot].head, (WL)w); |
|
|
1803 | |
|
|
1804 | /* remove this watcher, if others are watching it, they will rearm */ |
|
|
1805 | inotify_rm_watch (fs_fd, wd); |
|
|
1806 | } |
|
|
1807 | |
|
|
1808 | static void noinline |
|
|
1809 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
|
|
1810 | { |
|
|
1811 | if (slot < 0) |
|
|
1812 | /* overflow, need to check for all hahs slots */ |
|
|
1813 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
1814 | infy_wd (EV_A_ slot, wd, ev); |
|
|
1815 | else |
|
|
1816 | { |
|
|
1817 | WL w_; |
|
|
1818 | |
|
|
1819 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
|
|
1820 | { |
|
|
1821 | ev_stat *w = (ev_stat *)w_; |
|
|
1822 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
|
|
1823 | |
|
|
1824 | if (w->wd == wd || wd == -1) |
|
|
1825 | { |
|
|
1826 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
|
|
1827 | { |
|
|
1828 | w->wd = -1; |
|
|
1829 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
1830 | } |
|
|
1831 | |
|
|
1832 | stat_timer_cb (EV_A_ &w->timer, 0); |
|
|
1833 | } |
|
|
1834 | } |
|
|
1835 | } |
|
|
1836 | } |
|
|
1837 | |
|
|
1838 | static void |
|
|
1839 | infy_cb (EV_P_ ev_io *w, int revents) |
|
|
1840 | { |
|
|
1841 | char buf [EV_INOTIFY_BUFSIZE]; |
|
|
1842 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
1843 | int ofs; |
|
|
1844 | int len = read (fs_fd, buf, sizeof (buf)); |
|
|
1845 | |
|
|
1846 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
|
|
1847 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
1848 | } |
|
|
1849 | |
|
|
1850 | void inline_size |
|
|
1851 | infy_init (EV_P) |
|
|
1852 | { |
|
|
1853 | if (fs_fd != -2) |
|
|
1854 | return; |
|
|
1855 | |
|
|
1856 | fs_fd = inotify_init (); |
|
|
1857 | |
|
|
1858 | if (fs_fd >= 0) |
|
|
1859 | { |
|
|
1860 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
|
|
1861 | ev_set_priority (&fs_w, EV_MAXPRI); |
|
|
1862 | ev_io_start (EV_A_ &fs_w); |
|
|
1863 | } |
|
|
1864 | } |
|
|
1865 | |
|
|
1866 | void inline_size |
|
|
1867 | infy_fork (EV_P) |
|
|
1868 | { |
|
|
1869 | int slot; |
|
|
1870 | |
|
|
1871 | if (fs_fd < 0) |
|
|
1872 | return; |
|
|
1873 | |
|
|
1874 | close (fs_fd); |
|
|
1875 | fs_fd = inotify_init (); |
|
|
1876 | |
|
|
1877 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
1878 | { |
|
|
1879 | WL w_ = fs_hash [slot].head; |
|
|
1880 | fs_hash [slot].head = 0; |
|
|
1881 | |
|
|
1882 | while (w_) |
|
|
1883 | { |
|
|
1884 | ev_stat *w = (ev_stat *)w_; |
|
|
1885 | w_ = w_->next; /* lets us add this watcher */ |
|
|
1886 | |
|
|
1887 | w->wd = -1; |
|
|
1888 | |
|
|
1889 | if (fs_fd >= 0) |
|
|
1890 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
1891 | else |
|
|
1892 | ev_timer_start (EV_A_ &w->timer); |
|
|
1893 | } |
|
|
1894 | |
|
|
1895 | } |
|
|
1896 | } |
|
|
1897 | |
|
|
1898 | #endif |
|
|
1899 | |
|
|
1900 | void |
|
|
1901 | ev_stat_stat (EV_P_ ev_stat *w) |
|
|
1902 | { |
|
|
1903 | if (lstat (w->path, &w->attr) < 0) |
|
|
1904 | w->attr.st_nlink = 0; |
|
|
1905 | else if (!w->attr.st_nlink) |
|
|
1906 | w->attr.st_nlink = 1; |
|
|
1907 | } |
|
|
1908 | |
|
|
1909 | static void noinline |
|
|
1910 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
1911 | { |
|
|
1912 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
1913 | |
|
|
1914 | /* we copy this here each the time so that */ |
|
|
1915 | /* prev has the old value when the callback gets invoked */ |
|
|
1916 | w->prev = w->attr; |
|
|
1917 | ev_stat_stat (EV_A_ w); |
|
|
1918 | |
|
|
1919 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
|
|
1920 | if ( |
|
|
1921 | w->prev.st_dev != w->attr.st_dev |
|
|
1922 | || w->prev.st_ino != w->attr.st_ino |
|
|
1923 | || w->prev.st_mode != w->attr.st_mode |
|
|
1924 | || w->prev.st_nlink != w->attr.st_nlink |
|
|
1925 | || w->prev.st_uid != w->attr.st_uid |
|
|
1926 | || w->prev.st_gid != w->attr.st_gid |
|
|
1927 | || w->prev.st_rdev != w->attr.st_rdev |
|
|
1928 | || w->prev.st_size != w->attr.st_size |
|
|
1929 | || w->prev.st_atime != w->attr.st_atime |
|
|
1930 | || w->prev.st_mtime != w->attr.st_mtime |
|
|
1931 | || w->prev.st_ctime != w->attr.st_ctime |
|
|
1932 | ) { |
|
|
1933 | #if EV_USE_INOTIFY |
|
|
1934 | infy_del (EV_A_ w); |
|
|
1935 | infy_add (EV_A_ w); |
|
|
1936 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
1937 | #endif |
|
|
1938 | |
|
|
1939 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
1940 | } |
|
|
1941 | } |
|
|
1942 | |
|
|
1943 | void |
|
|
1944 | ev_stat_start (EV_P_ ev_stat *w) |
|
|
1945 | { |
|
|
1946 | if (expect_false (ev_is_active (w))) |
|
|
1947 | return; |
|
|
1948 | |
|
|
1949 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
1950 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
1951 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
1952 | |
|
|
1953 | ev_stat_stat (EV_A_ w); |
|
|
1954 | |
|
|
1955 | if (w->interval < MIN_STAT_INTERVAL) |
|
|
1956 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
1957 | |
|
|
1958 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
|
|
1959 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
1960 | |
|
|
1961 | #if EV_USE_INOTIFY |
|
|
1962 | infy_init (EV_A); |
|
|
1963 | |
|
|
1964 | if (fs_fd >= 0) |
|
|
1965 | infy_add (EV_A_ w); |
|
|
1966 | else |
|
|
1967 | #endif |
|
|
1968 | ev_timer_start (EV_A_ &w->timer); |
|
|
1969 | |
|
|
1970 | ev_start (EV_A_ (W)w, 1); |
|
|
1971 | } |
|
|
1972 | |
|
|
1973 | void |
|
|
1974 | ev_stat_stop (EV_P_ ev_stat *w) |
|
|
1975 | { |
|
|
1976 | ev_clear_pending (EV_A_ (W)w); |
|
|
1977 | if (expect_false (!ev_is_active (w))) |
|
|
1978 | return; |
|
|
1979 | |
|
|
1980 | #if EV_USE_INOTIFY |
|
|
1981 | infy_del (EV_A_ w); |
|
|
1982 | #endif |
|
|
1983 | ev_timer_stop (EV_A_ &w->timer); |
|
|
1984 | |
|
|
1985 | ev_stop (EV_A_ (W)w); |
|
|
1986 | } |
|
|
1987 | #endif |
|
|
1988 | |
|
|
1989 | void |
|
|
1990 | ev_idle_start (EV_P_ ev_idle *w) |
|
|
1991 | { |
|
|
1992 | if (expect_false (ev_is_active (w))) |
|
|
1993 | return; |
|
|
1994 | |
787 | ev_start ((W)w, ++idlecnt); |
1995 | ev_start (EV_A_ (W)w, ++idlecnt); |
788 | array_needsize (idles, idlemax, idlecnt, ); |
1996 | array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2); |
789 | idles [idlecnt - 1] = w; |
1997 | idles [idlecnt - 1] = w; |
790 | } |
1998 | } |
791 | |
1999 | |
792 | void evidle_stop (struct ev_idle *w) |
2000 | void |
|
|
2001 | ev_idle_stop (EV_P_ ev_idle *w) |
793 | { |
2002 | { |
794 | ev_clear ((W)w); |
2003 | ev_clear_pending (EV_A_ (W)w); |
795 | if (ev_is_active (w)) |
2004 | if (expect_false (!ev_is_active (w))) |
796 | return; |
2005 | return; |
797 | |
2006 | |
|
|
2007 | { |
|
|
2008 | int active = ((W)w)->active; |
798 | idles [w->active - 1] = idles [--idlecnt]; |
2009 | idles [active - 1] = idles [--idlecnt]; |
|
|
2010 | ((W)idles [active - 1])->active = active; |
|
|
2011 | } |
|
|
2012 | |
799 | ev_stop ((W)w); |
2013 | ev_stop (EV_A_ (W)w); |
800 | } |
2014 | } |
801 | |
2015 | |
|
|
2016 | void |
|
|
2017 | ev_prepare_start (EV_P_ ev_prepare *w) |
|
|
2018 | { |
|
|
2019 | if (expect_false (ev_is_active (w))) |
|
|
2020 | return; |
|
|
2021 | |
|
|
2022 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
2023 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
|
|
2024 | prepares [preparecnt - 1] = w; |
|
|
2025 | } |
|
|
2026 | |
|
|
2027 | void |
|
|
2028 | ev_prepare_stop (EV_P_ ev_prepare *w) |
|
|
2029 | { |
|
|
2030 | ev_clear_pending (EV_A_ (W)w); |
|
|
2031 | if (expect_false (!ev_is_active (w))) |
|
|
2032 | return; |
|
|
2033 | |
|
|
2034 | { |
|
|
2035 | int active = ((W)w)->active; |
|
|
2036 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
2037 | ((W)prepares [active - 1])->active = active; |
|
|
2038 | } |
|
|
2039 | |
|
|
2040 | ev_stop (EV_A_ (W)w); |
|
|
2041 | } |
|
|
2042 | |
|
|
2043 | void |
802 | void evcheck_start (struct ev_check *w) |
2044 | ev_check_start (EV_P_ ev_check *w) |
803 | { |
2045 | { |
804 | if (ev_is_active (w)) |
2046 | if (expect_false (ev_is_active (w))) |
805 | return; |
2047 | return; |
806 | |
2048 | |
807 | ev_start ((W)w, ++checkcnt); |
2049 | ev_start (EV_A_ (W)w, ++checkcnt); |
808 | array_needsize (checks, checkmax, checkcnt, ); |
2050 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
809 | checks [checkcnt - 1] = w; |
2051 | checks [checkcnt - 1] = w; |
810 | } |
2052 | } |
811 | |
2053 | |
|
|
2054 | void |
812 | void evcheck_stop (struct ev_check *w) |
2055 | ev_check_stop (EV_P_ ev_check *w) |
813 | { |
2056 | { |
814 | ev_clear ((W)w); |
2057 | ev_clear_pending (EV_A_ (W)w); |
815 | if (ev_is_active (w)) |
2058 | if (expect_false (!ev_is_active (w))) |
816 | return; |
2059 | return; |
817 | |
2060 | |
|
|
2061 | { |
|
|
2062 | int active = ((W)w)->active; |
818 | checks [w->active - 1] = checks [--checkcnt]; |
2063 | checks [active - 1] = checks [--checkcnt]; |
|
|
2064 | ((W)checks [active - 1])->active = active; |
|
|
2065 | } |
|
|
2066 | |
819 | ev_stop ((W)w); |
2067 | ev_stop (EV_A_ (W)w); |
820 | } |
2068 | } |
|
|
2069 | |
|
|
2070 | #if EV_EMBED_ENABLE |
|
|
2071 | void noinline |
|
|
2072 | ev_embed_sweep (EV_P_ ev_embed *w) |
|
|
2073 | { |
|
|
2074 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
|
|
2075 | } |
|
|
2076 | |
|
|
2077 | static void |
|
|
2078 | embed_cb (EV_P_ ev_io *io, int revents) |
|
|
2079 | { |
|
|
2080 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
|
|
2081 | |
|
|
2082 | if (ev_cb (w)) |
|
|
2083 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
|
|
2084 | else |
|
|
2085 | ev_embed_sweep (loop, w); |
|
|
2086 | } |
|
|
2087 | |
|
|
2088 | void |
|
|
2089 | ev_embed_start (EV_P_ ev_embed *w) |
|
|
2090 | { |
|
|
2091 | if (expect_false (ev_is_active (w))) |
|
|
2092 | return; |
|
|
2093 | |
|
|
2094 | { |
|
|
2095 | struct ev_loop *loop = w->loop; |
|
|
2096 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
|
|
2097 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
|
|
2098 | } |
|
|
2099 | |
|
|
2100 | ev_set_priority (&w->io, ev_priority (w)); |
|
|
2101 | ev_io_start (EV_A_ &w->io); |
|
|
2102 | |
|
|
2103 | ev_start (EV_A_ (W)w, 1); |
|
|
2104 | } |
|
|
2105 | |
|
|
2106 | void |
|
|
2107 | ev_embed_stop (EV_P_ ev_embed *w) |
|
|
2108 | { |
|
|
2109 | ev_clear_pending (EV_A_ (W)w); |
|
|
2110 | if (expect_false (!ev_is_active (w))) |
|
|
2111 | return; |
|
|
2112 | |
|
|
2113 | ev_io_stop (EV_A_ &w->io); |
|
|
2114 | |
|
|
2115 | ev_stop (EV_A_ (W)w); |
|
|
2116 | } |
|
|
2117 | #endif |
|
|
2118 | |
|
|
2119 | #if EV_FORK_ENABLE |
|
|
2120 | void |
|
|
2121 | ev_fork_start (EV_P_ ev_fork *w) |
|
|
2122 | { |
|
|
2123 | if (expect_false (ev_is_active (w))) |
|
|
2124 | return; |
|
|
2125 | |
|
|
2126 | ev_start (EV_A_ (W)w, ++forkcnt); |
|
|
2127 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
|
|
2128 | forks [forkcnt - 1] = w; |
|
|
2129 | } |
|
|
2130 | |
|
|
2131 | void |
|
|
2132 | ev_fork_stop (EV_P_ ev_fork *w) |
|
|
2133 | { |
|
|
2134 | ev_clear_pending (EV_A_ (W)w); |
|
|
2135 | if (expect_false (!ev_is_active (w))) |
|
|
2136 | return; |
|
|
2137 | |
|
|
2138 | { |
|
|
2139 | int active = ((W)w)->active; |
|
|
2140 | forks [active - 1] = forks [--forkcnt]; |
|
|
2141 | ((W)forks [active - 1])->active = active; |
|
|
2142 | } |
|
|
2143 | |
|
|
2144 | ev_stop (EV_A_ (W)w); |
|
|
2145 | } |
|
|
2146 | #endif |
821 | |
2147 | |
822 | /*****************************************************************************/ |
2148 | /*****************************************************************************/ |
823 | |
2149 | |
824 | struct ev_once |
2150 | struct ev_once |
825 | { |
2151 | { |
826 | struct ev_io io; |
2152 | ev_io io; |
827 | struct ev_timer to; |
2153 | ev_timer to; |
828 | void (*cb)(int revents, void *arg); |
2154 | void (*cb)(int revents, void *arg); |
829 | void *arg; |
2155 | void *arg; |
830 | }; |
2156 | }; |
831 | |
2157 | |
832 | static void |
2158 | static void |
833 | once_cb (struct ev_once *once, int revents) |
2159 | once_cb (EV_P_ struct ev_once *once, int revents) |
834 | { |
2160 | { |
835 | void (*cb)(int revents, void *arg) = once->cb; |
2161 | void (*cb)(int revents, void *arg) = once->cb; |
836 | void *arg = once->arg; |
2162 | void *arg = once->arg; |
837 | |
2163 | |
838 | evio_stop (&once->io); |
2164 | ev_io_stop (EV_A_ &once->io); |
839 | evtimer_stop (&once->to); |
2165 | ev_timer_stop (EV_A_ &once->to); |
840 | free (once); |
2166 | ev_free (once); |
841 | |
2167 | |
842 | cb (revents, arg); |
2168 | cb (revents, arg); |
843 | } |
2169 | } |
844 | |
2170 | |
845 | static void |
2171 | static void |
846 | once_cb_io (struct ev_io *w, int revents) |
2172 | once_cb_io (EV_P_ ev_io *w, int revents) |
847 | { |
2173 | { |
848 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
2174 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
849 | } |
2175 | } |
850 | |
2176 | |
851 | static void |
2177 | static void |
852 | once_cb_to (struct ev_timer *w, int revents) |
2178 | once_cb_to (EV_P_ ev_timer *w, int revents) |
853 | { |
2179 | { |
854 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
2180 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
855 | } |
2181 | } |
856 | |
2182 | |
857 | void |
2183 | void |
858 | ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2184 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
859 | { |
2185 | { |
860 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
2186 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
861 | |
2187 | |
862 | if (!once) |
2188 | if (expect_false (!once)) |
863 | cb (EV_ERROR, arg); |
2189 | { |
864 | else |
2190 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
|
|
2191 | return; |
865 | { |
2192 | } |
|
|
2193 | |
866 | once->cb = cb; |
2194 | once->cb = cb; |
867 | once->arg = arg; |
2195 | once->arg = arg; |
868 | |
2196 | |
869 | evw_init (&once->io, once_cb_io); |
2197 | ev_init (&once->io, once_cb_io); |
870 | |
|
|
871 | if (fd >= 0) |
2198 | if (fd >= 0) |
872 | { |
2199 | { |
873 | evio_set (&once->io, fd, events); |
2200 | ev_io_set (&once->io, fd, events); |
874 | evio_start (&once->io); |
2201 | ev_io_start (EV_A_ &once->io); |
875 | } |
2202 | } |
876 | |
2203 | |
877 | evw_init (&once->to, once_cb_to); |
2204 | ev_init (&once->to, once_cb_to); |
878 | |
|
|
879 | if (timeout >= 0.) |
2205 | if (timeout >= 0.) |
880 | { |
2206 | { |
881 | evtimer_set (&once->to, timeout, 0.); |
2207 | ev_timer_set (&once->to, timeout, 0.); |
882 | evtimer_start (&once->to); |
2208 | ev_timer_start (EV_A_ &once->to); |
883 | } |
|
|
884 | } |
|
|
885 | } |
|
|
886 | |
|
|
887 | /*****************************************************************************/ |
|
|
888 | |
|
|
889 | #if 0 |
|
|
890 | |
|
|
891 | struct ev_io wio; |
|
|
892 | |
|
|
893 | static void |
|
|
894 | sin_cb (struct ev_io *w, int revents) |
|
|
895 | { |
|
|
896 | fprintf (stderr, "sin %d, revents %d\n", w->fd, revents); |
|
|
897 | } |
|
|
898 | |
|
|
899 | static void |
|
|
900 | ocb (struct ev_timer *w, int revents) |
|
|
901 | { |
|
|
902 | //fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data); |
|
|
903 | evtimer_stop (w); |
|
|
904 | evtimer_start (w); |
|
|
905 | } |
|
|
906 | |
|
|
907 | static void |
|
|
908 | scb (struct ev_signal *w, int revents) |
|
|
909 | { |
|
|
910 | fprintf (stderr, "signal %x,%d\n", revents, w->signum); |
|
|
911 | evio_stop (&wio); |
|
|
912 | evio_start (&wio); |
|
|
913 | } |
|
|
914 | |
|
|
915 | static void |
|
|
916 | gcb (struct ev_signal *w, int revents) |
|
|
917 | { |
|
|
918 | fprintf (stderr, "generic %x\n", revents); |
|
|
919 | |
|
|
920 | } |
|
|
921 | |
|
|
922 | int main (void) |
|
|
923 | { |
|
|
924 | ev_init (0); |
|
|
925 | |
|
|
926 | evio_init (&wio, sin_cb, 0, EV_READ); |
|
|
927 | evio_start (&wio); |
|
|
928 | |
|
|
929 | struct ev_timer t[10000]; |
|
|
930 | |
|
|
931 | #if 0 |
|
|
932 | int i; |
|
|
933 | for (i = 0; i < 10000; ++i) |
|
|
934 | { |
2209 | } |
935 | struct ev_timer *w = t + i; |
|
|
936 | evw_init (w, ocb, i); |
|
|
937 | evtimer_init_abs (w, ocb, drand48 (), 0.99775533); |
|
|
938 | evtimer_start (w); |
|
|
939 | if (drand48 () < 0.5) |
|
|
940 | evtimer_stop (w); |
|
|
941 | } |
|
|
942 | #endif |
|
|
943 | |
|
|
944 | struct ev_timer t1; |
|
|
945 | evtimer_init (&t1, ocb, 5, 10); |
|
|
946 | evtimer_start (&t1); |
|
|
947 | |
|
|
948 | struct ev_signal sig; |
|
|
949 | evsignal_init (&sig, scb, SIGQUIT); |
|
|
950 | evsignal_start (&sig); |
|
|
951 | |
|
|
952 | struct ev_check cw; |
|
|
953 | evcheck_init (&cw, gcb); |
|
|
954 | evcheck_start (&cw); |
|
|
955 | |
|
|
956 | struct ev_idle iw; |
|
|
957 | evidle_init (&iw, gcb); |
|
|
958 | evidle_start (&iw); |
|
|
959 | |
|
|
960 | ev_loop (0); |
|
|
961 | |
|
|
962 | return 0; |
|
|
963 | } |
2210 | } |
964 | |
2211 | |
|
|
2212 | #ifdef __cplusplus |
|
|
2213 | } |
965 | #endif |
2214 | #endif |
966 | |
2215 | |
967 | |
|
|
968 | |
|
|
969 | |
|
|