1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * modification, are permitted provided that the following conditions are |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * met: |
9 | * |
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10 | * 1. Redistributions of source code must retain the above copyright notice, |
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11 | * this list of conditions and the following disclaimer. |
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12 | * |
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13 | * 2. Redistributions in binary form must reproduce the above copyright |
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14 | * notice, this list of conditions and the following disclaimer in the |
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15 | * documentation and/or other materials provided with the distribution. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
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18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
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19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
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20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
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21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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22 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
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23 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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24 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
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25 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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26 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
10 | * |
27 | * |
11 | * * Redistributions of source code must retain the above copyright |
28 | * Alternatively, the contents of this file may be used under the terms of |
12 | * notice, this list of conditions and the following disclaimer. |
29 | * the GNU General Public License ("GPL") version 2 or any later version, |
13 | * |
30 | * in which case the provisions of the GPL are applicable instead of |
14 | * * Redistributions in binary form must reproduce the above |
31 | * the above. If you wish to allow the use of your version of this file |
15 | * copyright notice, this list of conditions and the following |
32 | * only under the terms of the GPL and not to allow others to use your |
16 | * disclaimer in the documentation and/or other materials provided |
33 | * version of this file under the BSD license, indicate your decision |
17 | * with the distribution. |
34 | * by deleting the provisions above and replace them with the notice |
18 | * |
35 | * and other provisions required by the GPL. If you do not delete the |
19 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
36 | * provisions above, a recipient may use your version of this file under |
20 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
37 | * either the BSD or the GPL. |
21 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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22 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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23 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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24 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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25 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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30 | */ |
38 | */ |
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39 | |
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40 | #ifdef __cplusplus |
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41 | extern "C" { |
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42 | #endif |
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43 | |
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44 | /* this big block deduces configuration from config.h */ |
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45 | #ifndef EV_STANDALONE |
31 | #if EV_USE_CONFIG_H |
46 | # ifdef EV_CONFIG_H |
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47 | # include EV_CONFIG_H |
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48 | # else |
32 | # include "config.h" |
49 | # include "config.h" |
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50 | # endif |
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51 | |
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52 | # if HAVE_CLOCK_GETTIME |
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53 | # ifndef EV_USE_MONOTONIC |
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54 | # define EV_USE_MONOTONIC 1 |
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55 | # endif |
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56 | # ifndef EV_USE_REALTIME |
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57 | # define EV_USE_REALTIME 1 |
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58 | # endif |
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59 | # else |
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60 | # ifndef EV_USE_MONOTONIC |
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61 | # define EV_USE_MONOTONIC 0 |
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62 | # endif |
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63 | # ifndef EV_USE_REALTIME |
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64 | # define EV_USE_REALTIME 0 |
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65 | # endif |
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66 | # endif |
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67 | |
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68 | # ifndef EV_USE_NANOSLEEP |
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69 | # if HAVE_NANOSLEEP |
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70 | # define EV_USE_NANOSLEEP 1 |
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71 | # else |
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72 | # define EV_USE_NANOSLEEP 0 |
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73 | # endif |
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74 | # endif |
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75 | |
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76 | # ifndef EV_USE_SELECT |
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77 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
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78 | # define EV_USE_SELECT 1 |
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79 | # else |
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80 | # define EV_USE_SELECT 0 |
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81 | # endif |
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82 | # endif |
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83 | |
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84 | # ifndef EV_USE_POLL |
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85 | # if HAVE_POLL && HAVE_POLL_H |
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86 | # define EV_USE_POLL 1 |
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87 | # else |
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88 | # define EV_USE_POLL 0 |
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89 | # endif |
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90 | # endif |
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91 | |
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92 | # ifndef EV_USE_EPOLL |
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93 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
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94 | # define EV_USE_EPOLL 1 |
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95 | # else |
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96 | # define EV_USE_EPOLL 0 |
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97 | # endif |
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98 | # endif |
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99 | |
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100 | # ifndef EV_USE_KQUEUE |
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101 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
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102 | # define EV_USE_KQUEUE 1 |
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103 | # else |
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104 | # define EV_USE_KQUEUE 0 |
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105 | # endif |
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106 | # endif |
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107 | |
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108 | # ifndef EV_USE_PORT |
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109 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
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110 | # define EV_USE_PORT 1 |
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111 | # else |
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112 | # define EV_USE_PORT 0 |
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113 | # endif |
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114 | # endif |
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115 | |
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116 | # ifndef EV_USE_INOTIFY |
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117 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
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118 | # define EV_USE_INOTIFY 1 |
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119 | # else |
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120 | # define EV_USE_INOTIFY 0 |
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121 | # endif |
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122 | # endif |
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123 | |
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124 | # ifndef EV_USE_EVENTFD |
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125 | # if HAVE_EVENTFD |
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126 | # define EV_USE_EVENTFD 1 |
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127 | # else |
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128 | # define EV_USE_EVENTFD 0 |
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129 | # endif |
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130 | # endif |
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131 | |
33 | #endif |
132 | #endif |
34 | |
133 | |
35 | #include <math.h> |
134 | #include <math.h> |
36 | #include <stdlib.h> |
135 | #include <stdlib.h> |
37 | #include <unistd.h> |
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38 | #include <fcntl.h> |
136 | #include <fcntl.h> |
39 | #include <signal.h> |
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40 | #include <stddef.h> |
137 | #include <stddef.h> |
41 | |
138 | |
42 | #include <stdio.h> |
139 | #include <stdio.h> |
43 | |
140 | |
44 | #include <assert.h> |
141 | #include <assert.h> |
45 | #include <errno.h> |
142 | #include <errno.h> |
46 | #include <sys/types.h> |
143 | #include <sys/types.h> |
47 | #include <sys/wait.h> |
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48 | #include <sys/time.h> |
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49 | #include <time.h> |
144 | #include <time.h> |
50 | |
145 | |
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146 | #include <signal.h> |
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147 | |
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148 | #ifdef EV_H |
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149 | # include EV_H |
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150 | #else |
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151 | # include "ev.h" |
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152 | #endif |
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153 | |
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154 | #ifndef _WIN32 |
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155 | # include <sys/time.h> |
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156 | # include <sys/wait.h> |
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157 | # include <unistd.h> |
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158 | #else |
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159 | # define WIN32_LEAN_AND_MEAN |
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160 | # include <windows.h> |
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161 | # ifndef EV_SELECT_IS_WINSOCKET |
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162 | # define EV_SELECT_IS_WINSOCKET 1 |
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163 | # endif |
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164 | #endif |
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165 | |
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166 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
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167 | |
51 | #ifndef EV_USE_MONOTONIC |
168 | #ifndef EV_USE_MONOTONIC |
52 | # define EV_USE_MONOTONIC 1 |
169 | # define EV_USE_MONOTONIC 0 |
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170 | #endif |
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171 | |
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172 | #ifndef EV_USE_REALTIME |
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173 | # define EV_USE_REALTIME 0 |
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174 | #endif |
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175 | |
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176 | #ifndef EV_USE_NANOSLEEP |
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177 | # define EV_USE_NANOSLEEP 0 |
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178 | #endif |
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179 | |
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180 | #ifndef EV_USE_SELECT |
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181 | # define EV_USE_SELECT 1 |
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182 | #endif |
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183 | |
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184 | #ifndef EV_USE_POLL |
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185 | # ifdef _WIN32 |
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186 | # define EV_USE_POLL 0 |
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187 | # else |
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188 | # define EV_USE_POLL 1 |
53 | #endif |
189 | # endif |
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190 | #endif |
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191 | |
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192 | #ifndef EV_USE_EPOLL |
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193 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
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194 | # define EV_USE_EPOLL 1 |
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195 | # else |
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196 | # define EV_USE_EPOLL 0 |
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197 | # endif |
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198 | #endif |
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199 | |
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200 | #ifndef EV_USE_KQUEUE |
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201 | # define EV_USE_KQUEUE 0 |
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202 | #endif |
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203 | |
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204 | #ifndef EV_USE_PORT |
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205 | # define EV_USE_PORT 0 |
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206 | #endif |
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207 | |
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208 | #ifndef EV_USE_INOTIFY |
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209 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
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210 | # define EV_USE_INOTIFY 1 |
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211 | # else |
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212 | # define EV_USE_INOTIFY 0 |
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213 | # endif |
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214 | #endif |
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215 | |
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216 | #ifndef EV_PID_HASHSIZE |
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217 | # if EV_MINIMAL |
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218 | # define EV_PID_HASHSIZE 1 |
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219 | # else |
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220 | # define EV_PID_HASHSIZE 16 |
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221 | # endif |
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222 | #endif |
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223 | |
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224 | #ifndef EV_INOTIFY_HASHSIZE |
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225 | # if EV_MINIMAL |
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226 | # define EV_INOTIFY_HASHSIZE 1 |
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227 | # else |
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228 | # define EV_INOTIFY_HASHSIZE 16 |
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229 | # endif |
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230 | #endif |
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231 | |
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232 | #ifndef EV_USE_EVENTFD |
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233 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
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234 | # define EV_USE_EVENTFD 1 |
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235 | # else |
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236 | # define EV_USE_EVENTFD 0 |
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237 | # endif |
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238 | #endif |
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239 | |
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240 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
54 | |
241 | |
55 | #ifndef CLOCK_MONOTONIC |
242 | #ifndef CLOCK_MONOTONIC |
56 | # undef EV_USE_MONOTONIC |
243 | # undef EV_USE_MONOTONIC |
57 | # define EV_USE_MONOTONIC 0 |
244 | # define EV_USE_MONOTONIC 0 |
58 | #endif |
245 | #endif |
59 | |
246 | |
60 | #ifndef EV_USE_SELECT |
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61 | # define EV_USE_SELECT 1 |
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62 | #endif |
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63 | |
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64 | #ifndef EV_USE_EPOLL |
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65 | # define EV_USE_EPOLL 0 |
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66 | #endif |
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67 | |
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68 | #ifndef CLOCK_REALTIME |
247 | #ifndef CLOCK_REALTIME |
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248 | # undef EV_USE_REALTIME |
69 | # define EV_USE_REALTIME 0 |
249 | # define EV_USE_REALTIME 0 |
70 | #endif |
250 | #endif |
71 | #ifndef EV_USE_REALTIME |
251 | |
72 | # define EV_USE_REALTIME 1 /* posix requirement, but might be slower */ |
252 | #if !EV_STAT_ENABLE |
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253 | # undef EV_USE_INOTIFY |
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254 | # define EV_USE_INOTIFY 0 |
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255 | #endif |
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256 | |
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257 | #if !EV_USE_NANOSLEEP |
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258 | # ifndef _WIN32 |
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259 | # include <sys/select.h> |
73 | #endif |
260 | # endif |
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261 | #endif |
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262 | |
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263 | #if EV_USE_INOTIFY |
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264 | # include <sys/inotify.h> |
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265 | #endif |
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266 | |
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267 | #if EV_SELECT_IS_WINSOCKET |
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268 | # include <winsock.h> |
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269 | #endif |
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270 | |
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271 | #if EV_USE_EVENTFD |
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272 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
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273 | # include <stdint.h> |
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274 | # ifdef __cplusplus |
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275 | extern "C" { |
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276 | # endif |
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277 | int eventfd (unsigned int initval, int flags); |
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278 | # ifdef __cplusplus |
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279 | } |
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280 | # endif |
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281 | #endif |
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282 | |
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283 | /**/ |
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284 | |
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285 | /* |
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286 | * This is used to avoid floating point rounding problems. |
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287 | * It is added to ev_rt_now when scheduling periodics |
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288 | * to ensure progress, time-wise, even when rounding |
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289 | * errors are against us. |
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290 | * This value is good at least till the year 4000. |
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291 | * Better solutions welcome. |
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292 | */ |
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293 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
74 | |
294 | |
75 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
295 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
76 | #define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detetc time jumps) */ |
296 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
77 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
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78 | #define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */ |
297 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
79 | |
298 | |
80 | #include "ev.h" |
299 | #if __GNUC__ >= 4 |
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300 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
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301 | # define noinline __attribute__ ((noinline)) |
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302 | #else |
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303 | # define expect(expr,value) (expr) |
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304 | # define noinline |
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305 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
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306 | # define inline |
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307 | # endif |
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308 | #endif |
81 | |
309 | |
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310 | #define expect_false(expr) expect ((expr) != 0, 0) |
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311 | #define expect_true(expr) expect ((expr) != 0, 1) |
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312 | #define inline_size static inline |
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313 | |
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314 | #if EV_MINIMAL |
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315 | # define inline_speed static noinline |
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316 | #else |
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317 | # define inline_speed static inline |
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318 | #endif |
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319 | |
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320 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
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321 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
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322 | |
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323 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
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324 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
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325 | |
82 | typedef struct ev_watcher *W; |
326 | typedef ev_watcher *W; |
83 | typedef struct ev_watcher_list *WL; |
327 | typedef ev_watcher_list *WL; |
84 | typedef struct ev_watcher_time *WT; |
328 | typedef ev_watcher_time *WT; |
85 | |
329 | |
86 | static ev_tstamp now, diff; /* monotonic clock */ |
330 | #if EV_USE_MONOTONIC |
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331 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
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332 | /* giving it a reasonably high chance of working on typical architetcures */ |
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333 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
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334 | #endif |
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335 | |
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336 | #ifdef _WIN32 |
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337 | # include "ev_win32.c" |
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338 | #endif |
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339 | |
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340 | /*****************************************************************************/ |
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341 | |
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342 | static void (*syserr_cb)(const char *msg); |
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343 | |
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344 | void |
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345 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
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346 | { |
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347 | syserr_cb = cb; |
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348 | } |
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349 | |
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350 | static void noinline |
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351 | syserr (const char *msg) |
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352 | { |
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353 | if (!msg) |
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354 | msg = "(libev) system error"; |
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355 | |
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356 | if (syserr_cb) |
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357 | syserr_cb (msg); |
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358 | else |
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359 | { |
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360 | perror (msg); |
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361 | abort (); |
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362 | } |
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363 | } |
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364 | |
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365 | static void * |
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366 | ev_realloc_emul (void *ptr, long size) |
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367 | { |
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368 | /* some systems, notably openbsd and darwin, fail to properly |
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369 | * implement realloc (x, 0) (as required by both ansi c-98 and |
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370 | * the single unix specification, so work around them here. |
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371 | */ |
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372 | |
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373 | if (size) |
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374 | return realloc (ptr, size); |
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375 | |
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376 | free (ptr); |
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377 | return 0; |
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378 | } |
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379 | |
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380 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
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381 | |
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382 | void |
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383 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
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384 | { |
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385 | alloc = cb; |
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386 | } |
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387 | |
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388 | inline_speed void * |
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389 | ev_realloc (void *ptr, long size) |
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390 | { |
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391 | ptr = alloc (ptr, size); |
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392 | |
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393 | if (!ptr && size) |
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394 | { |
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395 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
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396 | abort (); |
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397 | } |
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398 | |
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399 | return ptr; |
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400 | } |
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401 | |
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402 | #define ev_malloc(size) ev_realloc (0, (size)) |
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403 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
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404 | |
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405 | /*****************************************************************************/ |
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406 | |
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407 | typedef struct |
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408 | { |
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409 | WL head; |
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410 | unsigned char events; |
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411 | unsigned char reify; |
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412 | #if EV_SELECT_IS_WINSOCKET |
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|
413 | SOCKET handle; |
|
|
414 | #endif |
|
|
415 | } ANFD; |
|
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416 | |
|
|
417 | typedef struct |
|
|
418 | { |
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|
419 | W w; |
|
|
420 | int events; |
|
|
421 | } ANPENDING; |
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422 | |
|
|
423 | #if EV_USE_INOTIFY |
|
|
424 | typedef struct |
|
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425 | { |
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426 | WL head; |
|
|
427 | } ANFS; |
|
|
428 | #endif |
|
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429 | |
|
|
430 | #if EV_MULTIPLICITY |
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431 | |
|
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432 | struct ev_loop |
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433 | { |
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434 | ev_tstamp ev_rt_now; |
|
|
435 | #define ev_rt_now ((loop)->ev_rt_now) |
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436 | #define VAR(name,decl) decl; |
|
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437 | #include "ev_vars.h" |
|
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438 | #undef VAR |
|
|
439 | }; |
|
|
440 | #include "ev_wrap.h" |
|
|
441 | |
|
|
442 | static struct ev_loop default_loop_struct; |
|
|
443 | struct ev_loop *ev_default_loop_ptr; |
|
|
444 | |
|
|
445 | #else |
|
|
446 | |
87 | ev_tstamp ev_now; |
447 | ev_tstamp ev_rt_now; |
88 | int ev_method; |
448 | #define VAR(name,decl) static decl; |
|
|
449 | #include "ev_vars.h" |
|
|
450 | #undef VAR |
89 | |
451 | |
90 | static int have_monotonic; /* runtime */ |
452 | static int ev_default_loop_ptr; |
91 | |
453 | |
92 | static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */ |
454 | #endif |
93 | static void (*method_modify)(int fd, int oev, int nev); |
|
|
94 | static void (*method_poll)(ev_tstamp timeout); |
|
|
95 | |
455 | |
96 | /*****************************************************************************/ |
456 | /*****************************************************************************/ |
97 | |
457 | |
98 | ev_tstamp |
458 | ev_tstamp |
99 | ev_time (void) |
459 | ev_time (void) |
… | |
… | |
107 | gettimeofday (&tv, 0); |
467 | gettimeofday (&tv, 0); |
108 | return tv.tv_sec + tv.tv_usec * 1e-6; |
468 | return tv.tv_sec + tv.tv_usec * 1e-6; |
109 | #endif |
469 | #endif |
110 | } |
470 | } |
111 | |
471 | |
112 | static ev_tstamp |
472 | ev_tstamp inline_size |
113 | get_clock (void) |
473 | get_clock (void) |
114 | { |
474 | { |
115 | #if EV_USE_MONOTONIC |
475 | #if EV_USE_MONOTONIC |
116 | if (have_monotonic) |
476 | if (expect_true (have_monotonic)) |
117 | { |
477 | { |
118 | struct timespec ts; |
478 | struct timespec ts; |
119 | clock_gettime (CLOCK_MONOTONIC, &ts); |
479 | clock_gettime (CLOCK_MONOTONIC, &ts); |
120 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
480 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
121 | } |
481 | } |
122 | #endif |
482 | #endif |
123 | |
483 | |
124 | return ev_time (); |
484 | return ev_time (); |
125 | } |
485 | } |
126 | |
486 | |
127 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
487 | #if EV_MULTIPLICITY |
|
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488 | ev_tstamp |
|
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489 | ev_now (EV_P) |
|
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490 | { |
|
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491 | return ev_rt_now; |
|
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492 | } |
|
|
493 | #endif |
128 | |
494 | |
129 | #define array_needsize(base,cur,cnt,init) \ |
495 | void |
130 | if ((cnt) > cur) \ |
496 | ev_sleep (ev_tstamp delay) |
131 | { \ |
497 | { |
132 | int newcnt = cur; \ |
498 | if (delay > 0.) |
133 | do \ |
|
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134 | { \ |
|
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135 | newcnt = array_roundsize (base, newcnt << 1); \ |
|
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136 | } \ |
|
|
137 | while ((cnt) > newcnt); \ |
|
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138 | \ |
|
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139 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
|
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140 | init (base + cur, newcnt - cur); \ |
|
|
141 | cur = newcnt; \ |
|
|
142 | } |
499 | { |
|
|
500 | #if EV_USE_NANOSLEEP |
|
|
501 | struct timespec ts; |
|
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502 | |
|
|
503 | ts.tv_sec = (time_t)delay; |
|
|
504 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
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505 | |
|
|
506 | nanosleep (&ts, 0); |
|
|
507 | #elif defined(_WIN32) |
|
|
508 | Sleep ((unsigned long)(delay * 1e3)); |
|
|
509 | #else |
|
|
510 | struct timeval tv; |
|
|
511 | |
|
|
512 | tv.tv_sec = (time_t)delay; |
|
|
513 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
514 | |
|
|
515 | select (0, 0, 0, 0, &tv); |
|
|
516 | #endif |
|
|
517 | } |
|
|
518 | } |
143 | |
519 | |
144 | /*****************************************************************************/ |
520 | /*****************************************************************************/ |
145 | |
521 | |
146 | typedef struct |
522 | int inline_size |
|
|
523 | array_nextsize (int elem, int cur, int cnt) |
147 | { |
524 | { |
148 | struct ev_io *head; |
525 | int ncur = cur + 1; |
149 | unsigned char events; |
|
|
150 | unsigned char reify; |
|
|
151 | } ANFD; |
|
|
152 | |
526 | |
153 | static ANFD *anfds; |
527 | do |
154 | static int anfdmax; |
528 | ncur <<= 1; |
|
|
529 | while (cnt > ncur); |
155 | |
530 | |
156 | static void |
531 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
|
|
532 | if (elem * ncur > 4096) |
|
|
533 | { |
|
|
534 | ncur *= elem; |
|
|
535 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
|
|
536 | ncur = ncur - sizeof (void *) * 4; |
|
|
537 | ncur /= elem; |
|
|
538 | } |
|
|
539 | |
|
|
540 | return ncur; |
|
|
541 | } |
|
|
542 | |
|
|
543 | static noinline void * |
|
|
544 | array_realloc (int elem, void *base, int *cur, int cnt) |
|
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545 | { |
|
|
546 | *cur = array_nextsize (elem, *cur, cnt); |
|
|
547 | return ev_realloc (base, elem * *cur); |
|
|
548 | } |
|
|
549 | |
|
|
550 | #define array_needsize(type,base,cur,cnt,init) \ |
|
|
551 | if (expect_false ((cnt) > (cur))) \ |
|
|
552 | { \ |
|
|
553 | int ocur_ = (cur); \ |
|
|
554 | (base) = (type *)array_realloc \ |
|
|
555 | (sizeof (type), (base), &(cur), (cnt)); \ |
|
|
556 | init ((base) + (ocur_), (cur) - ocur_); \ |
|
|
557 | } |
|
|
558 | |
|
|
559 | #if 0 |
|
|
560 | #define array_slim(type,stem) \ |
|
|
561 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
|
|
562 | { \ |
|
|
563 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
|
|
564 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
|
|
565 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
|
|
566 | } |
|
|
567 | #endif |
|
|
568 | |
|
|
569 | #define array_free(stem, idx) \ |
|
|
570 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
|
|
571 | |
|
|
572 | /*****************************************************************************/ |
|
|
573 | |
|
|
574 | void noinline |
|
|
575 | ev_feed_event (EV_P_ void *w, int revents) |
|
|
576 | { |
|
|
577 | W w_ = (W)w; |
|
|
578 | int pri = ABSPRI (w_); |
|
|
579 | |
|
|
580 | if (expect_false (w_->pending)) |
|
|
581 | pendings [pri][w_->pending - 1].events |= revents; |
|
|
582 | else |
|
|
583 | { |
|
|
584 | w_->pending = ++pendingcnt [pri]; |
|
|
585 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
|
|
586 | pendings [pri][w_->pending - 1].w = w_; |
|
|
587 | pendings [pri][w_->pending - 1].events = revents; |
|
|
588 | } |
|
|
589 | } |
|
|
590 | |
|
|
591 | void inline_speed |
|
|
592 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
593 | { |
|
|
594 | int i; |
|
|
595 | |
|
|
596 | for (i = 0; i < eventcnt; ++i) |
|
|
597 | ev_feed_event (EV_A_ events [i], type); |
|
|
598 | } |
|
|
599 | |
|
|
600 | /*****************************************************************************/ |
|
|
601 | |
|
|
602 | void inline_size |
157 | anfds_init (ANFD *base, int count) |
603 | anfds_init (ANFD *base, int count) |
158 | { |
604 | { |
159 | while (count--) |
605 | while (count--) |
160 | { |
606 | { |
161 | base->head = 0; |
607 | base->head = 0; |
… | |
… | |
164 | |
610 | |
165 | ++base; |
611 | ++base; |
166 | } |
612 | } |
167 | } |
613 | } |
168 | |
614 | |
169 | typedef struct |
615 | void inline_speed |
170 | { |
|
|
171 | W w; |
|
|
172 | int events; |
|
|
173 | } ANPENDING; |
|
|
174 | |
|
|
175 | static ANPENDING *pendings; |
|
|
176 | static int pendingmax, pendingcnt; |
|
|
177 | |
|
|
178 | static void |
|
|
179 | event (W w, int events) |
|
|
180 | { |
|
|
181 | if (w->pending) |
|
|
182 | { |
|
|
183 | pendings [w->pending - 1].events |= events; |
|
|
184 | return; |
|
|
185 | } |
|
|
186 | |
|
|
187 | w->pending = ++pendingcnt; |
|
|
188 | array_needsize (pendings, pendingmax, pendingcnt, ); |
|
|
189 | pendings [pendingcnt - 1].w = w; |
|
|
190 | pendings [pendingcnt - 1].events = events; |
|
|
191 | } |
|
|
192 | |
|
|
193 | static void |
|
|
194 | queue_events (W *events, int eventcnt, int type) |
|
|
195 | { |
|
|
196 | int i; |
|
|
197 | |
|
|
198 | for (i = 0; i < eventcnt; ++i) |
|
|
199 | event (events [i], type); |
|
|
200 | } |
|
|
201 | |
|
|
202 | static void |
|
|
203 | fd_event (int fd, int events) |
616 | fd_event (EV_P_ int fd, int revents) |
204 | { |
617 | { |
205 | ANFD *anfd = anfds + fd; |
618 | ANFD *anfd = anfds + fd; |
206 | struct ev_io *w; |
619 | ev_io *w; |
207 | |
620 | |
208 | for (w = anfd->head; w; w = w->next) |
621 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
209 | { |
622 | { |
210 | int ev = w->events & events; |
623 | int ev = w->events & revents; |
211 | |
624 | |
212 | if (ev) |
625 | if (ev) |
213 | event ((W)w, ev); |
626 | ev_feed_event (EV_A_ (W)w, ev); |
214 | } |
627 | } |
215 | } |
628 | } |
216 | |
629 | |
217 | /*****************************************************************************/ |
630 | void |
|
|
631 | ev_feed_fd_event (EV_P_ int fd, int revents) |
|
|
632 | { |
|
|
633 | if (fd >= 0 && fd < anfdmax) |
|
|
634 | fd_event (EV_A_ fd, revents); |
|
|
635 | } |
218 | |
636 | |
219 | static int *fdchanges; |
637 | void inline_size |
220 | static int fdchangemax, fdchangecnt; |
638 | fd_reify (EV_P) |
221 | |
|
|
222 | static void |
|
|
223 | fd_reify (void) |
|
|
224 | { |
639 | { |
225 | int i; |
640 | int i; |
226 | |
641 | |
227 | for (i = 0; i < fdchangecnt; ++i) |
642 | for (i = 0; i < fdchangecnt; ++i) |
228 | { |
643 | { |
229 | int fd = fdchanges [i]; |
644 | int fd = fdchanges [i]; |
230 | ANFD *anfd = anfds + fd; |
645 | ANFD *anfd = anfds + fd; |
231 | struct ev_io *w; |
646 | ev_io *w; |
232 | |
647 | |
233 | int events = 0; |
648 | unsigned char events = 0; |
234 | |
649 | |
235 | for (w = anfd->head; w; w = w->next) |
650 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
236 | events |= w->events; |
651 | events |= (unsigned char)w->events; |
237 | |
652 | |
238 | anfd->reify = 0; |
653 | #if EV_SELECT_IS_WINSOCKET |
239 | |
654 | if (events) |
240 | if (anfd->events != events) |
|
|
241 | { |
655 | { |
242 | method_modify (fd, anfd->events, events); |
656 | unsigned long argp; |
243 | anfd->events = events; |
657 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
658 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
659 | #else |
|
|
660 | anfd->handle = _get_osfhandle (fd); |
|
|
661 | #endif |
|
|
662 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
244 | } |
663 | } |
|
|
664 | #endif |
|
|
665 | |
|
|
666 | { |
|
|
667 | unsigned char o_events = anfd->events; |
|
|
668 | unsigned char o_reify = anfd->reify; |
|
|
669 | |
|
|
670 | anfd->reify = 0; |
|
|
671 | anfd->events = events; |
|
|
672 | |
|
|
673 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
674 | backend_modify (EV_A_ fd, o_events, events); |
|
|
675 | } |
245 | } |
676 | } |
246 | |
677 | |
247 | fdchangecnt = 0; |
678 | fdchangecnt = 0; |
248 | } |
679 | } |
249 | |
680 | |
250 | static void |
681 | void inline_size |
251 | fd_change (int fd) |
682 | fd_change (EV_P_ int fd, int flags) |
252 | { |
683 | { |
253 | if (anfds [fd].reify || fdchangecnt < 0) |
684 | unsigned char reify = anfds [fd].reify; |
254 | return; |
|
|
255 | |
|
|
256 | anfds [fd].reify = 1; |
685 | anfds [fd].reify |= flags; |
257 | |
686 | |
|
|
687 | if (expect_true (!reify)) |
|
|
688 | { |
258 | ++fdchangecnt; |
689 | ++fdchangecnt; |
259 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
690 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
260 | fdchanges [fdchangecnt - 1] = fd; |
691 | fdchanges [fdchangecnt - 1] = fd; |
|
|
692 | } |
|
|
693 | } |
|
|
694 | |
|
|
695 | void inline_speed |
|
|
696 | fd_kill (EV_P_ int fd) |
|
|
697 | { |
|
|
698 | ev_io *w; |
|
|
699 | |
|
|
700 | while ((w = (ev_io *)anfds [fd].head)) |
|
|
701 | { |
|
|
702 | ev_io_stop (EV_A_ w); |
|
|
703 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
|
|
704 | } |
|
|
705 | } |
|
|
706 | |
|
|
707 | int inline_size |
|
|
708 | fd_valid (int fd) |
|
|
709 | { |
|
|
710 | #ifdef _WIN32 |
|
|
711 | return _get_osfhandle (fd) != -1; |
|
|
712 | #else |
|
|
713 | return fcntl (fd, F_GETFD) != -1; |
|
|
714 | #endif |
261 | } |
715 | } |
262 | |
716 | |
263 | /* called on EBADF to verify fds */ |
717 | /* called on EBADF to verify fds */ |
264 | static void |
718 | static void noinline |
265 | fd_recheck (void) |
719 | fd_ebadf (EV_P) |
266 | { |
720 | { |
267 | int fd; |
721 | int fd; |
268 | |
722 | |
269 | for (fd = 0; fd < anfdmax; ++fd) |
723 | for (fd = 0; fd < anfdmax; ++fd) |
270 | if (anfds [fd].events) |
724 | if (anfds [fd].events) |
271 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
725 | if (!fd_valid (fd) == -1 && errno == EBADF) |
272 | while (anfds [fd].head) |
726 | fd_kill (EV_A_ fd); |
|
|
727 | } |
|
|
728 | |
|
|
729 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
|
|
730 | static void noinline |
|
|
731 | fd_enomem (EV_P) |
|
|
732 | { |
|
|
733 | int fd; |
|
|
734 | |
|
|
735 | for (fd = anfdmax; fd--; ) |
|
|
736 | if (anfds [fd].events) |
273 | { |
737 | { |
274 | ev_io_stop (anfds [fd].head); |
738 | fd_kill (EV_A_ fd); |
275 | event ((W)anfds [fd].head, EV_ERROR | EV_READ | EV_WRITE); |
739 | return; |
276 | } |
740 | } |
|
|
741 | } |
|
|
742 | |
|
|
743 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
|
|
744 | static void noinline |
|
|
745 | fd_rearm_all (EV_P) |
|
|
746 | { |
|
|
747 | int fd; |
|
|
748 | |
|
|
749 | for (fd = 0; fd < anfdmax; ++fd) |
|
|
750 | if (anfds [fd].events) |
|
|
751 | { |
|
|
752 | anfds [fd].events = 0; |
|
|
753 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
|
|
754 | } |
277 | } |
755 | } |
278 | |
756 | |
279 | /*****************************************************************************/ |
757 | /*****************************************************************************/ |
280 | |
758 | |
281 | static struct ev_timer **timers; |
759 | /* towards the root */ |
282 | static int timermax, timercnt; |
760 | void inline_speed |
283 | |
|
|
284 | static struct ev_periodic **periodics; |
|
|
285 | static int periodicmax, periodiccnt; |
|
|
286 | |
|
|
287 | static void |
|
|
288 | upheap (WT *timers, int k) |
761 | upheap (WT *heap, int k) |
289 | { |
762 | { |
290 | WT w = timers [k]; |
763 | WT w = heap [k]; |
291 | |
764 | |
292 | while (k && timers [k >> 1]->at > w->at) |
765 | while (k) |
293 | { |
|
|
294 | timers [k] = timers [k >> 1]; |
|
|
295 | timers [k]->active = k + 1; |
|
|
296 | k >>= 1; |
|
|
297 | } |
766 | { |
298 | |
|
|
299 | timers [k] = w; |
|
|
300 | timers [k]->active = k + 1; |
|
|
301 | |
|
|
302 | } |
|
|
303 | |
|
|
304 | static void |
|
|
305 | downheap (WT *timers, int N, int k) |
|
|
306 | { |
|
|
307 | WT w = timers [k]; |
|
|
308 | |
|
|
309 | while (k < (N >> 1)) |
|
|
310 | { |
|
|
311 | int j = k << 1; |
767 | int p = (k - 1) >> 1; |
312 | |
768 | |
313 | if (j + 1 < N && timers [j]->at > timers [j + 1]->at) |
769 | if (heap [p]->at <= w->at) |
314 | ++j; |
|
|
315 | |
|
|
316 | if (w->at <= timers [j]->at) |
|
|
317 | break; |
770 | break; |
318 | |
771 | |
319 | timers [k] = timers [j]; |
772 | heap [k] = heap [p]; |
320 | timers [k]->active = k + 1; |
773 | ((W)heap [k])->active = k + 1; |
321 | k = j; |
774 | k = p; |
|
|
775 | } |
|
|
776 | |
|
|
777 | heap [k] = w; |
|
|
778 | ((W)heap [k])->active = k + 1; |
|
|
779 | } |
|
|
780 | |
|
|
781 | /* away from the root */ |
|
|
782 | void inline_speed |
|
|
783 | downheap (WT *heap, int N, int k) |
|
|
784 | { |
|
|
785 | WT w = heap [k]; |
|
|
786 | |
|
|
787 | for (;;) |
322 | } |
788 | { |
|
|
789 | int c = (k << 1) + 1; |
323 | |
790 | |
|
|
791 | if (c >= N) |
|
|
792 | break; |
|
|
793 | |
|
|
794 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
795 | ? 1 : 0; |
|
|
796 | |
|
|
797 | if (w->at <= heap [c]->at) |
|
|
798 | break; |
|
|
799 | |
|
|
800 | heap [k] = heap [c]; |
|
|
801 | ((W)heap [k])->active = k + 1; |
|
|
802 | |
|
|
803 | k = c; |
|
|
804 | } |
|
|
805 | |
324 | timers [k] = w; |
806 | heap [k] = w; |
325 | timers [k]->active = k + 1; |
807 | ((W)heap [k])->active = k + 1; |
|
|
808 | } |
|
|
809 | |
|
|
810 | void inline_size |
|
|
811 | adjustheap (WT *heap, int N, int k) |
|
|
812 | { |
|
|
813 | upheap (heap, k); |
|
|
814 | downheap (heap, N, k); |
326 | } |
815 | } |
327 | |
816 | |
328 | /*****************************************************************************/ |
817 | /*****************************************************************************/ |
329 | |
818 | |
330 | typedef struct |
819 | typedef struct |
331 | { |
820 | { |
332 | struct ev_signal *head; |
821 | WL head; |
333 | sig_atomic_t volatile gotsig; |
822 | EV_ATOMIC_T gotsig; |
334 | } ANSIG; |
823 | } ANSIG; |
335 | |
824 | |
336 | static ANSIG *signals; |
825 | static ANSIG *signals; |
337 | static int signalmax; |
826 | static int signalmax; |
338 | |
827 | |
339 | static int sigpipe [2]; |
828 | static EV_ATOMIC_T gotsig; |
340 | static sig_atomic_t volatile gotsig; |
|
|
341 | static struct ev_io sigev; |
|
|
342 | |
829 | |
343 | static void |
830 | void inline_size |
344 | signals_init (ANSIG *base, int count) |
831 | signals_init (ANSIG *base, int count) |
345 | { |
832 | { |
346 | while (count--) |
833 | while (count--) |
347 | { |
834 | { |
348 | base->head = 0; |
835 | base->head = 0; |
… | |
… | |
350 | |
837 | |
351 | ++base; |
838 | ++base; |
352 | } |
839 | } |
353 | } |
840 | } |
354 | |
841 | |
|
|
842 | /*****************************************************************************/ |
|
|
843 | |
|
|
844 | void inline_speed |
|
|
845 | fd_intern (int fd) |
|
|
846 | { |
|
|
847 | #ifdef _WIN32 |
|
|
848 | int arg = 1; |
|
|
849 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
850 | #else |
|
|
851 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
852 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
853 | #endif |
|
|
854 | } |
|
|
855 | |
|
|
856 | static void noinline |
|
|
857 | evpipe_init (EV_P) |
|
|
858 | { |
|
|
859 | if (!ev_is_active (&pipeev)) |
|
|
860 | { |
|
|
861 | #if EV_USE_EVENTFD |
|
|
862 | if ((evfd = eventfd (0, 0)) >= 0) |
|
|
863 | { |
|
|
864 | evpipe [0] = -1; |
|
|
865 | fd_intern (evfd); |
|
|
866 | ev_io_set (&pipeev, evfd, EV_READ); |
|
|
867 | } |
|
|
868 | else |
|
|
869 | #endif |
|
|
870 | { |
|
|
871 | while (pipe (evpipe)) |
|
|
872 | syserr ("(libev) error creating signal/async pipe"); |
|
|
873 | |
|
|
874 | fd_intern (evpipe [0]); |
|
|
875 | fd_intern (evpipe [1]); |
|
|
876 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
|
|
877 | } |
|
|
878 | |
|
|
879 | ev_io_start (EV_A_ &pipeev); |
|
|
880 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
881 | } |
|
|
882 | } |
|
|
883 | |
|
|
884 | void inline_size |
|
|
885 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
886 | { |
|
|
887 | if (!*flag) |
|
|
888 | { |
|
|
889 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
890 | |
|
|
891 | *flag = 1; |
|
|
892 | |
|
|
893 | #if EV_USE_EVENTFD |
|
|
894 | if (evfd >= 0) |
|
|
895 | { |
|
|
896 | uint64_t counter = 1; |
|
|
897 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
898 | } |
|
|
899 | else |
|
|
900 | #endif |
|
|
901 | write (evpipe [1], &old_errno, 1); |
|
|
902 | |
|
|
903 | errno = old_errno; |
|
|
904 | } |
|
|
905 | } |
|
|
906 | |
355 | static void |
907 | static void |
|
|
908 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
909 | { |
|
|
910 | #if EV_USE_EVENTFD |
|
|
911 | if (evfd >= 0) |
|
|
912 | { |
|
|
913 | uint64_t counter = 1; |
|
|
914 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
915 | } |
|
|
916 | else |
|
|
917 | #endif |
|
|
918 | { |
|
|
919 | char dummy; |
|
|
920 | read (evpipe [0], &dummy, 1); |
|
|
921 | } |
|
|
922 | |
|
|
923 | if (gotsig && ev_is_default_loop (EV_A)) |
|
|
924 | { |
|
|
925 | int signum; |
|
|
926 | gotsig = 0; |
|
|
927 | |
|
|
928 | for (signum = signalmax; signum--; ) |
|
|
929 | if (signals [signum].gotsig) |
|
|
930 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
931 | } |
|
|
932 | |
|
|
933 | #if EV_ASYNC_ENABLE |
|
|
934 | if (gotasync) |
|
|
935 | { |
|
|
936 | int i; |
|
|
937 | gotasync = 0; |
|
|
938 | |
|
|
939 | for (i = asynccnt; i--; ) |
|
|
940 | if (asyncs [i]->sent) |
|
|
941 | { |
|
|
942 | asyncs [i]->sent = 0; |
|
|
943 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
944 | } |
|
|
945 | } |
|
|
946 | #endif |
|
|
947 | } |
|
|
948 | |
|
|
949 | /*****************************************************************************/ |
|
|
950 | |
|
|
951 | static void |
356 | sighandler (int signum) |
952 | ev_sighandler (int signum) |
357 | { |
953 | { |
|
|
954 | #if EV_MULTIPLICITY |
|
|
955 | struct ev_loop *loop = &default_loop_struct; |
|
|
956 | #endif |
|
|
957 | |
|
|
958 | #if _WIN32 |
|
|
959 | signal (signum, ev_sighandler); |
|
|
960 | #endif |
|
|
961 | |
358 | signals [signum - 1].gotsig = 1; |
962 | signals [signum - 1].gotsig = 1; |
359 | |
963 | evpipe_write (EV_A_ &gotsig); |
360 | if (!gotsig) |
|
|
361 | { |
|
|
362 | gotsig = 1; |
|
|
363 | write (sigpipe [1], &signum, 1); |
|
|
364 | } |
|
|
365 | } |
964 | } |
366 | |
965 | |
367 | static void |
966 | void noinline |
368 | sigcb (struct ev_io *iow, int revents) |
967 | ev_feed_signal_event (EV_P_ int signum) |
369 | { |
968 | { |
370 | struct ev_signal *w; |
969 | WL w; |
371 | int sig; |
|
|
372 | |
970 | |
373 | read (sigpipe [0], &revents, 1); |
971 | #if EV_MULTIPLICITY |
374 | gotsig = 0; |
972 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
973 | #endif |
375 | |
974 | |
376 | for (sig = signalmax; sig--; ) |
975 | --signum; |
377 | if (signals [sig].gotsig) |
976 | |
378 | { |
977 | if (signum < 0 || signum >= signalmax) |
|
|
978 | return; |
|
|
979 | |
379 | signals [sig].gotsig = 0; |
980 | signals [signum].gotsig = 0; |
380 | |
981 | |
381 | for (w = signals [sig].head; w; w = w->next) |
982 | for (w = signals [signum].head; w; w = w->next) |
382 | event ((W)w, EV_SIGNAL); |
983 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
383 | } |
|
|
384 | } |
|
|
385 | |
|
|
386 | static void |
|
|
387 | siginit (void) |
|
|
388 | { |
|
|
389 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
|
|
390 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
|
|
391 | |
|
|
392 | /* rather than sort out wether we really need nb, set it */ |
|
|
393 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
|
|
394 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
|
|
395 | |
|
|
396 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
397 | ev_io_start (&sigev); |
|
|
398 | } |
984 | } |
399 | |
985 | |
400 | /*****************************************************************************/ |
986 | /*****************************************************************************/ |
401 | |
987 | |
402 | static struct ev_idle **idles; |
988 | static WL childs [EV_PID_HASHSIZE]; |
403 | static int idlemax, idlecnt; |
|
|
404 | |
989 | |
405 | static struct ev_prepare **prepares; |
990 | #ifndef _WIN32 |
406 | static int preparemax, preparecnt; |
|
|
407 | |
991 | |
408 | static struct ev_check **checks; |
|
|
409 | static int checkmax, checkcnt; |
|
|
410 | |
|
|
411 | /*****************************************************************************/ |
|
|
412 | |
|
|
413 | static struct ev_child *childs [PID_HASHSIZE]; |
|
|
414 | static struct ev_signal childev; |
992 | static ev_signal childev; |
|
|
993 | |
|
|
994 | #ifndef WIFCONTINUED |
|
|
995 | # define WIFCONTINUED(status) 0 |
|
|
996 | #endif |
|
|
997 | |
|
|
998 | void inline_speed |
|
|
999 | child_reap (EV_P_ int chain, int pid, int status) |
|
|
1000 | { |
|
|
1001 | ev_child *w; |
|
|
1002 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
|
|
1003 | |
|
|
1004 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1005 | { |
|
|
1006 | if ((w->pid == pid || !w->pid) |
|
|
1007 | && (!traced || (w->flags & 1))) |
|
|
1008 | { |
|
|
1009 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
|
|
1010 | w->rpid = pid; |
|
|
1011 | w->rstatus = status; |
|
|
1012 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
1013 | } |
|
|
1014 | } |
|
|
1015 | } |
415 | |
1016 | |
416 | #ifndef WCONTINUED |
1017 | #ifndef WCONTINUED |
417 | # define WCONTINUED 0 |
1018 | # define WCONTINUED 0 |
418 | #endif |
1019 | #endif |
419 | |
1020 | |
420 | static void |
1021 | static void |
421 | childcb (struct ev_signal *sw, int revents) |
1022 | childcb (EV_P_ ev_signal *sw, int revents) |
422 | { |
1023 | { |
423 | struct ev_child *w; |
|
|
424 | int pid, status; |
1024 | int pid, status; |
425 | |
1025 | |
|
|
1026 | /* some systems define WCONTINUED but then fail to support it (linux 2.4) */ |
426 | while ((pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)) != -1) |
1027 | if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
427 | for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next) |
1028 | if (!WCONTINUED |
428 | if (w->pid == pid || w->pid == -1) |
1029 | || errno != EINVAL |
429 | { |
1030 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
430 | w->status = status; |
1031 | return; |
431 | event ((W)w, EV_CHILD); |
1032 | |
432 | } |
1033 | /* make sure we are called again until all children have been reaped */ |
|
|
1034 | /* we need to do it this way so that the callback gets called before we continue */ |
|
|
1035 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
|
|
1036 | |
|
|
1037 | child_reap (EV_A_ pid, pid, status); |
|
|
1038 | if (EV_PID_HASHSIZE > 1) |
|
|
1039 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
433 | } |
1040 | } |
|
|
1041 | |
|
|
1042 | #endif |
434 | |
1043 | |
435 | /*****************************************************************************/ |
1044 | /*****************************************************************************/ |
436 | |
1045 | |
|
|
1046 | #if EV_USE_PORT |
|
|
1047 | # include "ev_port.c" |
|
|
1048 | #endif |
|
|
1049 | #if EV_USE_KQUEUE |
|
|
1050 | # include "ev_kqueue.c" |
|
|
1051 | #endif |
437 | #if EV_USE_EPOLL |
1052 | #if EV_USE_EPOLL |
438 | # include "ev_epoll.c" |
1053 | # include "ev_epoll.c" |
439 | #endif |
1054 | #endif |
|
|
1055 | #if EV_USE_POLL |
|
|
1056 | # include "ev_poll.c" |
|
|
1057 | #endif |
440 | #if EV_USE_SELECT |
1058 | #if EV_USE_SELECT |
441 | # include "ev_select.c" |
1059 | # include "ev_select.c" |
442 | #endif |
1060 | #endif |
443 | |
1061 | |
444 | int |
1062 | int |
… | |
… | |
451 | ev_version_minor (void) |
1069 | ev_version_minor (void) |
452 | { |
1070 | { |
453 | return EV_VERSION_MINOR; |
1071 | return EV_VERSION_MINOR; |
454 | } |
1072 | } |
455 | |
1073 | |
456 | int ev_init (int flags) |
1074 | /* return true if we are running with elevated privileges and should ignore env variables */ |
|
|
1075 | int inline_size |
|
|
1076 | enable_secure (void) |
457 | { |
1077 | { |
458 | if (!ev_method) |
1078 | #ifdef _WIN32 |
|
|
1079 | return 0; |
|
|
1080 | #else |
|
|
1081 | return getuid () != geteuid () |
|
|
1082 | || getgid () != getegid (); |
|
|
1083 | #endif |
|
|
1084 | } |
|
|
1085 | |
|
|
1086 | unsigned int |
|
|
1087 | ev_supported_backends (void) |
|
|
1088 | { |
|
|
1089 | unsigned int flags = 0; |
|
|
1090 | |
|
|
1091 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
|
|
1092 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
|
|
1093 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
1094 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
1095 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
|
|
1096 | |
|
|
1097 | return flags; |
|
|
1098 | } |
|
|
1099 | |
|
|
1100 | unsigned int |
|
|
1101 | ev_recommended_backends (void) |
|
|
1102 | { |
|
|
1103 | unsigned int flags = ev_supported_backends (); |
|
|
1104 | |
|
|
1105 | #ifndef __NetBSD__ |
|
|
1106 | /* kqueue is borked on everything but netbsd apparently */ |
|
|
1107 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
|
|
1108 | flags &= ~EVBACKEND_KQUEUE; |
|
|
1109 | #endif |
|
|
1110 | #ifdef __APPLE__ |
|
|
1111 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
|
|
1112 | flags &= ~EVBACKEND_POLL; |
|
|
1113 | #endif |
|
|
1114 | |
|
|
1115 | return flags; |
|
|
1116 | } |
|
|
1117 | |
|
|
1118 | unsigned int |
|
|
1119 | ev_embeddable_backends (void) |
|
|
1120 | { |
|
|
1121 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
|
|
1122 | |
|
|
1123 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1124 | /* please fix it and tell me how to detect the fix */ |
|
|
1125 | flags &= ~EVBACKEND_EPOLL; |
|
|
1126 | |
|
|
1127 | return flags; |
|
|
1128 | } |
|
|
1129 | |
|
|
1130 | unsigned int |
|
|
1131 | ev_backend (EV_P) |
|
|
1132 | { |
|
|
1133 | return backend; |
|
|
1134 | } |
|
|
1135 | |
|
|
1136 | unsigned int |
|
|
1137 | ev_loop_count (EV_P) |
|
|
1138 | { |
|
|
1139 | return loop_count; |
|
|
1140 | } |
|
|
1141 | |
|
|
1142 | void |
|
|
1143 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1144 | { |
|
|
1145 | io_blocktime = interval; |
|
|
1146 | } |
|
|
1147 | |
|
|
1148 | void |
|
|
1149 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1150 | { |
|
|
1151 | timeout_blocktime = interval; |
|
|
1152 | } |
|
|
1153 | |
|
|
1154 | static void noinline |
|
|
1155 | loop_init (EV_P_ unsigned int flags) |
|
|
1156 | { |
|
|
1157 | if (!backend) |
459 | { |
1158 | { |
460 | #if EV_USE_MONOTONIC |
1159 | #if EV_USE_MONOTONIC |
461 | { |
1160 | { |
462 | struct timespec ts; |
1161 | struct timespec ts; |
463 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1162 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
464 | have_monotonic = 1; |
1163 | have_monotonic = 1; |
465 | } |
1164 | } |
466 | #endif |
1165 | #endif |
467 | |
1166 | |
468 | ev_now = ev_time (); |
1167 | ev_rt_now = ev_time (); |
469 | now = get_clock (); |
1168 | mn_now = get_clock (); |
|
|
1169 | now_floor = mn_now; |
470 | diff = ev_now - now; |
1170 | rtmn_diff = ev_rt_now - mn_now; |
471 | |
1171 | |
472 | if (pipe (sigpipe)) |
1172 | io_blocktime = 0.; |
473 | return 0; |
1173 | timeout_blocktime = 0.; |
|
|
1174 | backend = 0; |
|
|
1175 | backend_fd = -1; |
|
|
1176 | gotasync = 0; |
|
|
1177 | #if EV_USE_INOTIFY |
|
|
1178 | fs_fd = -2; |
|
|
1179 | #endif |
474 | |
1180 | |
475 | ev_method = EVMETHOD_NONE; |
1181 | /* pid check not overridable via env */ |
|
|
1182 | #ifndef _WIN32 |
|
|
1183 | if (flags & EVFLAG_FORKCHECK) |
|
|
1184 | curpid = getpid (); |
|
|
1185 | #endif |
|
|
1186 | |
|
|
1187 | if (!(flags & EVFLAG_NOENV) |
|
|
1188 | && !enable_secure () |
|
|
1189 | && getenv ("LIBEV_FLAGS")) |
|
|
1190 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1191 | |
|
|
1192 | if (!(flags & 0x0000ffffU)) |
|
|
1193 | flags |= ev_recommended_backends (); |
|
|
1194 | |
|
|
1195 | #if EV_USE_PORT |
|
|
1196 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
|
|
1197 | #endif |
|
|
1198 | #if EV_USE_KQUEUE |
|
|
1199 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
|
|
1200 | #endif |
476 | #if EV_USE_EPOLL |
1201 | #if EV_USE_EPOLL |
477 | if (ev_method == EVMETHOD_NONE) epoll_init (flags); |
1202 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
|
|
1203 | #endif |
|
|
1204 | #if EV_USE_POLL |
|
|
1205 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
478 | #endif |
1206 | #endif |
479 | #if EV_USE_SELECT |
1207 | #if EV_USE_SELECT |
480 | if (ev_method == EVMETHOD_NONE) select_init (flags); |
1208 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
481 | #endif |
1209 | #endif |
482 | |
1210 | |
483 | if (ev_method) |
1211 | ev_init (&pipeev, pipecb); |
|
|
1212 | ev_set_priority (&pipeev, EV_MAXPRI); |
|
|
1213 | } |
|
|
1214 | } |
|
|
1215 | |
|
|
1216 | static void noinline |
|
|
1217 | loop_destroy (EV_P) |
|
|
1218 | { |
|
|
1219 | int i; |
|
|
1220 | |
|
|
1221 | if (ev_is_active (&pipeev)) |
|
|
1222 | { |
|
|
1223 | ev_ref (EV_A); /* signal watcher */ |
|
|
1224 | ev_io_stop (EV_A_ &pipeev); |
|
|
1225 | |
|
|
1226 | #if EV_USE_EVENTFD |
|
|
1227 | if (evfd >= 0) |
|
|
1228 | close (evfd); |
|
|
1229 | #endif |
|
|
1230 | |
|
|
1231 | if (evpipe [0] >= 0) |
484 | { |
1232 | { |
485 | ev_watcher_init (&sigev, sigcb); |
1233 | close (evpipe [0]); |
486 | siginit (); |
1234 | close (evpipe [1]); |
|
|
1235 | } |
|
|
1236 | } |
487 | |
1237 | |
|
|
1238 | #if EV_USE_INOTIFY |
|
|
1239 | if (fs_fd >= 0) |
|
|
1240 | close (fs_fd); |
|
|
1241 | #endif |
|
|
1242 | |
|
|
1243 | if (backend_fd >= 0) |
|
|
1244 | close (backend_fd); |
|
|
1245 | |
|
|
1246 | #if EV_USE_PORT |
|
|
1247 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
|
|
1248 | #endif |
|
|
1249 | #if EV_USE_KQUEUE |
|
|
1250 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
|
|
1251 | #endif |
|
|
1252 | #if EV_USE_EPOLL |
|
|
1253 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
|
|
1254 | #endif |
|
|
1255 | #if EV_USE_POLL |
|
|
1256 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
|
|
1257 | #endif |
|
|
1258 | #if EV_USE_SELECT |
|
|
1259 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
|
|
1260 | #endif |
|
|
1261 | |
|
|
1262 | for (i = NUMPRI; i--; ) |
|
|
1263 | { |
|
|
1264 | array_free (pending, [i]); |
|
|
1265 | #if EV_IDLE_ENABLE |
|
|
1266 | array_free (idle, [i]); |
|
|
1267 | #endif |
|
|
1268 | } |
|
|
1269 | |
|
|
1270 | ev_free (anfds); anfdmax = 0; |
|
|
1271 | |
|
|
1272 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1273 | array_free (fdchange, EMPTY); |
|
|
1274 | array_free (timer, EMPTY); |
|
|
1275 | #if EV_PERIODIC_ENABLE |
|
|
1276 | array_free (periodic, EMPTY); |
|
|
1277 | #endif |
|
|
1278 | #if EV_FORK_ENABLE |
|
|
1279 | array_free (fork, EMPTY); |
|
|
1280 | #endif |
|
|
1281 | array_free (prepare, EMPTY); |
|
|
1282 | array_free (check, EMPTY); |
|
|
1283 | #if EV_ASYNC_ENABLE |
|
|
1284 | array_free (async, EMPTY); |
|
|
1285 | #endif |
|
|
1286 | |
|
|
1287 | backend = 0; |
|
|
1288 | } |
|
|
1289 | |
|
|
1290 | #if EV_USE_INOTIFY |
|
|
1291 | void inline_size infy_fork (EV_P); |
|
|
1292 | #endif |
|
|
1293 | |
|
|
1294 | void inline_size |
|
|
1295 | loop_fork (EV_P) |
|
|
1296 | { |
|
|
1297 | #if EV_USE_PORT |
|
|
1298 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
|
|
1299 | #endif |
|
|
1300 | #if EV_USE_KQUEUE |
|
|
1301 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
|
|
1302 | #endif |
|
|
1303 | #if EV_USE_EPOLL |
|
|
1304 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
|
|
1305 | #endif |
|
|
1306 | #if EV_USE_INOTIFY |
|
|
1307 | infy_fork (EV_A); |
|
|
1308 | #endif |
|
|
1309 | |
|
|
1310 | if (ev_is_active (&pipeev)) |
|
|
1311 | { |
|
|
1312 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1313 | /* while we modify the fd vars */ |
|
|
1314 | gotsig = 1; |
|
|
1315 | #if EV_ASYNC_ENABLE |
|
|
1316 | gotasync = 1; |
|
|
1317 | #endif |
|
|
1318 | |
|
|
1319 | ev_ref (EV_A); |
|
|
1320 | ev_io_stop (EV_A_ &pipeev); |
|
|
1321 | |
|
|
1322 | #if EV_USE_EVENTFD |
|
|
1323 | if (evfd >= 0) |
|
|
1324 | close (evfd); |
|
|
1325 | #endif |
|
|
1326 | |
|
|
1327 | if (evpipe [0] >= 0) |
|
|
1328 | { |
|
|
1329 | close (evpipe [0]); |
|
|
1330 | close (evpipe [1]); |
|
|
1331 | } |
|
|
1332 | |
|
|
1333 | evpipe_init (EV_A); |
|
|
1334 | /* now iterate over everything, in case we missed something */ |
|
|
1335 | pipecb (EV_A_ &pipeev, EV_READ); |
|
|
1336 | } |
|
|
1337 | |
|
|
1338 | postfork = 0; |
|
|
1339 | } |
|
|
1340 | |
|
|
1341 | #if EV_MULTIPLICITY |
|
|
1342 | struct ev_loop * |
|
|
1343 | ev_loop_new (unsigned int flags) |
|
|
1344 | { |
|
|
1345 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
|
|
1346 | |
|
|
1347 | memset (loop, 0, sizeof (struct ev_loop)); |
|
|
1348 | |
|
|
1349 | loop_init (EV_A_ flags); |
|
|
1350 | |
|
|
1351 | if (ev_backend (EV_A)) |
|
|
1352 | return loop; |
|
|
1353 | |
|
|
1354 | return 0; |
|
|
1355 | } |
|
|
1356 | |
|
|
1357 | void |
|
|
1358 | ev_loop_destroy (EV_P) |
|
|
1359 | { |
|
|
1360 | loop_destroy (EV_A); |
|
|
1361 | ev_free (loop); |
|
|
1362 | } |
|
|
1363 | |
|
|
1364 | void |
|
|
1365 | ev_loop_fork (EV_P) |
|
|
1366 | { |
|
|
1367 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1368 | } |
|
|
1369 | |
|
|
1370 | #endif |
|
|
1371 | |
|
|
1372 | #if EV_MULTIPLICITY |
|
|
1373 | struct ev_loop * |
|
|
1374 | ev_default_loop_init (unsigned int flags) |
|
|
1375 | #else |
|
|
1376 | int |
|
|
1377 | ev_default_loop (unsigned int flags) |
|
|
1378 | #endif |
|
|
1379 | { |
|
|
1380 | if (!ev_default_loop_ptr) |
|
|
1381 | { |
|
|
1382 | #if EV_MULTIPLICITY |
|
|
1383 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
|
|
1384 | #else |
|
|
1385 | ev_default_loop_ptr = 1; |
|
|
1386 | #endif |
|
|
1387 | |
|
|
1388 | loop_init (EV_A_ flags); |
|
|
1389 | |
|
|
1390 | if (ev_backend (EV_A)) |
|
|
1391 | { |
|
|
1392 | #ifndef _WIN32 |
488 | ev_signal_init (&childev, childcb, SIGCHLD); |
1393 | ev_signal_init (&childev, childcb, SIGCHLD); |
|
|
1394 | ev_set_priority (&childev, EV_MAXPRI); |
489 | ev_signal_start (&childev); |
1395 | ev_signal_start (EV_A_ &childev); |
|
|
1396 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
|
|
1397 | #endif |
490 | } |
1398 | } |
|
|
1399 | else |
|
|
1400 | ev_default_loop_ptr = 0; |
491 | } |
1401 | } |
492 | |
1402 | |
493 | return ev_method; |
1403 | return ev_default_loop_ptr; |
|
|
1404 | } |
|
|
1405 | |
|
|
1406 | void |
|
|
1407 | ev_default_destroy (void) |
|
|
1408 | { |
|
|
1409 | #if EV_MULTIPLICITY |
|
|
1410 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1411 | #endif |
|
|
1412 | |
|
|
1413 | #ifndef _WIN32 |
|
|
1414 | ev_ref (EV_A); /* child watcher */ |
|
|
1415 | ev_signal_stop (EV_A_ &childev); |
|
|
1416 | #endif |
|
|
1417 | |
|
|
1418 | loop_destroy (EV_A); |
|
|
1419 | } |
|
|
1420 | |
|
|
1421 | void |
|
|
1422 | ev_default_fork (void) |
|
|
1423 | { |
|
|
1424 | #if EV_MULTIPLICITY |
|
|
1425 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1426 | #endif |
|
|
1427 | |
|
|
1428 | if (backend) |
|
|
1429 | postfork = 1; /* must be in line with ev_loop_fork */ |
494 | } |
1430 | } |
495 | |
1431 | |
496 | /*****************************************************************************/ |
1432 | /*****************************************************************************/ |
497 | |
1433 | |
498 | void |
1434 | void |
499 | ev_fork_prepare (void) |
1435 | ev_invoke (EV_P_ void *w, int revents) |
500 | { |
1436 | { |
501 | /* nop */ |
1437 | EV_CB_INVOKE ((W)w, revents); |
502 | } |
1438 | } |
503 | |
1439 | |
504 | void |
1440 | void inline_speed |
505 | ev_fork_parent (void) |
|
|
506 | { |
|
|
507 | /* nop */ |
|
|
508 | } |
|
|
509 | |
|
|
510 | void |
|
|
511 | ev_fork_child (void) |
|
|
512 | { |
|
|
513 | #if EV_USE_EPOLL |
|
|
514 | if (ev_method == EVMETHOD_EPOLL) |
|
|
515 | epoll_postfork_child (); |
|
|
516 | #endif |
|
|
517 | |
|
|
518 | ev_io_stop (&sigev); |
|
|
519 | close (sigpipe [0]); |
|
|
520 | close (sigpipe [1]); |
|
|
521 | pipe (sigpipe); |
|
|
522 | siginit (); |
|
|
523 | } |
|
|
524 | |
|
|
525 | /*****************************************************************************/ |
|
|
526 | |
|
|
527 | static void |
|
|
528 | call_pending (void) |
1441 | call_pending (EV_P) |
529 | { |
1442 | { |
|
|
1443 | int pri; |
|
|
1444 | |
|
|
1445 | for (pri = NUMPRI; pri--; ) |
530 | while (pendingcnt) |
1446 | while (pendingcnt [pri]) |
531 | { |
1447 | { |
532 | ANPENDING *p = pendings + --pendingcnt; |
1448 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
533 | |
1449 | |
534 | if (p->w) |
1450 | if (expect_true (p->w)) |
535 | { |
1451 | { |
|
|
1452 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1453 | |
536 | p->w->pending = 0; |
1454 | p->w->pending = 0; |
537 | p->w->cb (p->w, p->events); |
1455 | EV_CB_INVOKE (p->w, p->events); |
538 | } |
1456 | } |
539 | } |
1457 | } |
540 | } |
1458 | } |
541 | |
1459 | |
542 | static void |
1460 | void inline_size |
543 | timers_reify (void) |
1461 | timers_reify (EV_P) |
544 | { |
1462 | { |
545 | while (timercnt && timers [0]->at <= now) |
1463 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
546 | { |
1464 | { |
547 | struct ev_timer *w = timers [0]; |
1465 | ev_timer *w = (ev_timer *)timers [0]; |
|
|
1466 | |
|
|
1467 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
548 | |
1468 | |
549 | /* first reschedule or stop timer */ |
1469 | /* first reschedule or stop timer */ |
550 | if (w->repeat) |
1470 | if (w->repeat) |
551 | { |
1471 | { |
552 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1472 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1473 | |
553 | w->at = now + w->repeat; |
1474 | ((WT)w)->at += w->repeat; |
|
|
1475 | if (((WT)w)->at < mn_now) |
|
|
1476 | ((WT)w)->at = mn_now; |
|
|
1477 | |
554 | downheap ((WT *)timers, timercnt, 0); |
1478 | downheap (timers, timercnt, 0); |
555 | } |
1479 | } |
556 | else |
1480 | else |
557 | ev_timer_stop (w); /* nonrepeating: stop timer */ |
1481 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
558 | |
1482 | |
559 | event ((W)w, EV_TIMEOUT); |
1483 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
560 | } |
1484 | } |
561 | } |
1485 | } |
562 | |
1486 | |
563 | static void |
1487 | #if EV_PERIODIC_ENABLE |
|
|
1488 | void inline_size |
564 | periodics_reify (void) |
1489 | periodics_reify (EV_P) |
565 | { |
1490 | { |
566 | while (periodiccnt && periodics [0]->at <= ev_now) |
1491 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
567 | { |
1492 | { |
568 | struct ev_periodic *w = periodics [0]; |
1493 | ev_periodic *w = (ev_periodic *)periodics [0]; |
|
|
1494 | |
|
|
1495 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
569 | |
1496 | |
570 | /* first reschedule or stop timer */ |
1497 | /* first reschedule or stop timer */ |
571 | if (w->interval) |
1498 | if (w->reschedule_cb) |
572 | { |
1499 | { |
|
|
1500 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
|
|
1501 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1502 | downheap (periodics, periodiccnt, 0); |
|
|
1503 | } |
|
|
1504 | else if (w->interval) |
|
|
1505 | { |
573 | w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval; |
1506 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1507 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
574 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now)); |
1508 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
575 | downheap ((WT *)periodics, periodiccnt, 0); |
1509 | downheap (periodics, periodiccnt, 0); |
576 | } |
1510 | } |
577 | else |
1511 | else |
578 | ev_periodic_stop (w); /* nonrepeating: stop timer */ |
1512 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
579 | |
1513 | |
580 | event ((W)w, EV_PERIODIC); |
1514 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
581 | } |
1515 | } |
582 | } |
1516 | } |
583 | |
1517 | |
584 | static void |
1518 | static void noinline |
585 | periodics_reschedule (ev_tstamp diff) |
1519 | periodics_reschedule (EV_P) |
586 | { |
1520 | { |
587 | int i; |
1521 | int i; |
588 | |
1522 | |
589 | /* adjust periodics after time jump */ |
1523 | /* adjust periodics after time jump */ |
590 | for (i = 0; i < periodiccnt; ++i) |
1524 | for (i = 0; i < periodiccnt; ++i) |
591 | { |
1525 | { |
592 | struct ev_periodic *w = periodics [i]; |
1526 | ev_periodic *w = (ev_periodic *)periodics [i]; |
593 | |
1527 | |
|
|
1528 | if (w->reschedule_cb) |
|
|
1529 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
594 | if (w->interval) |
1530 | else if (w->interval) |
|
|
1531 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1532 | } |
|
|
1533 | |
|
|
1534 | /* now rebuild the heap */ |
|
|
1535 | for (i = periodiccnt >> 1; i--; ) |
|
|
1536 | downheap (periodics, periodiccnt, i); |
|
|
1537 | } |
|
|
1538 | #endif |
|
|
1539 | |
|
|
1540 | #if EV_IDLE_ENABLE |
|
|
1541 | void inline_size |
|
|
1542 | idle_reify (EV_P) |
|
|
1543 | { |
|
|
1544 | if (expect_false (idleall)) |
|
|
1545 | { |
|
|
1546 | int pri; |
|
|
1547 | |
|
|
1548 | for (pri = NUMPRI; pri--; ) |
595 | { |
1549 | { |
596 | ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval; |
1550 | if (pendingcnt [pri]) |
|
|
1551 | break; |
597 | |
1552 | |
598 | if (fabs (diff) >= 1e-4) |
1553 | if (idlecnt [pri]) |
599 | { |
1554 | { |
600 | ev_periodic_stop (w); |
1555 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
601 | ev_periodic_start (w); |
1556 | break; |
602 | |
|
|
603 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
|
|
604 | } |
1557 | } |
605 | } |
1558 | } |
606 | } |
1559 | } |
607 | } |
1560 | } |
|
|
1561 | #endif |
608 | |
1562 | |
609 | static void |
1563 | void inline_speed |
610 | time_update (void) |
1564 | time_update (EV_P_ ev_tstamp max_block) |
611 | { |
1565 | { |
612 | int i; |
1566 | int i; |
613 | |
1567 | |
614 | ev_now = ev_time (); |
1568 | #if EV_USE_MONOTONIC |
615 | |
|
|
616 | if (have_monotonic) |
1569 | if (expect_true (have_monotonic)) |
617 | { |
1570 | { |
618 | ev_tstamp odiff = diff; |
1571 | ev_tstamp odiff = rtmn_diff; |
619 | |
1572 | |
620 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
1573 | mn_now = get_clock (); |
|
|
1574 | |
|
|
1575 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
1576 | /* interpolate in the meantime */ |
|
|
1577 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
621 | { |
1578 | { |
622 | now = get_clock (); |
1579 | ev_rt_now = rtmn_diff + mn_now; |
|
|
1580 | return; |
|
|
1581 | } |
|
|
1582 | |
|
|
1583 | now_floor = mn_now; |
|
|
1584 | ev_rt_now = ev_time (); |
|
|
1585 | |
|
|
1586 | /* loop a few times, before making important decisions. |
|
|
1587 | * on the choice of "4": one iteration isn't enough, |
|
|
1588 | * in case we get preempted during the calls to |
|
|
1589 | * ev_time and get_clock. a second call is almost guaranteed |
|
|
1590 | * to succeed in that case, though. and looping a few more times |
|
|
1591 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1592 | * in the unlikely event of having been preempted here. |
|
|
1593 | */ |
|
|
1594 | for (i = 4; --i; ) |
|
|
1595 | { |
623 | diff = ev_now - now; |
1596 | rtmn_diff = ev_rt_now - mn_now; |
624 | |
1597 | |
625 | if (fabs (odiff - diff) < MIN_TIMEJUMP) |
1598 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
626 | return; /* all is well */ |
1599 | return; /* all is well */ |
627 | |
1600 | |
628 | ev_now = ev_time (); |
1601 | ev_rt_now = ev_time (); |
|
|
1602 | mn_now = get_clock (); |
|
|
1603 | now_floor = mn_now; |
629 | } |
1604 | } |
630 | |
1605 | |
|
|
1606 | # if EV_PERIODIC_ENABLE |
631 | periodics_reschedule (diff - odiff); |
1607 | periodics_reschedule (EV_A); |
|
|
1608 | # endif |
632 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1609 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1610 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
633 | } |
1611 | } |
634 | else |
1612 | else |
|
|
1613 | #endif |
635 | { |
1614 | { |
636 | if (now > ev_now || now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP) |
1615 | ev_rt_now = ev_time (); |
|
|
1616 | |
|
|
1617 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
637 | { |
1618 | { |
|
|
1619 | #if EV_PERIODIC_ENABLE |
638 | periodics_reschedule (ev_now - now); |
1620 | periodics_reschedule (EV_A); |
639 | |
1621 | #endif |
640 | /* adjust timers. this is easy, as the offset is the same for all */ |
1622 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
641 | for (i = 0; i < timercnt; ++i) |
1623 | for (i = 0; i < timercnt; ++i) |
642 | timers [i]->at += diff; |
1624 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
643 | } |
1625 | } |
644 | |
1626 | |
645 | now = ev_now; |
1627 | mn_now = ev_rt_now; |
646 | } |
1628 | } |
647 | } |
1629 | } |
648 | |
1630 | |
649 | int ev_loop_done; |
1631 | void |
|
|
1632 | ev_ref (EV_P) |
|
|
1633 | { |
|
|
1634 | ++activecnt; |
|
|
1635 | } |
650 | |
1636 | |
|
|
1637 | void |
|
|
1638 | ev_unref (EV_P) |
|
|
1639 | { |
|
|
1640 | --activecnt; |
|
|
1641 | } |
|
|
1642 | |
|
|
1643 | static int loop_done; |
|
|
1644 | |
|
|
1645 | void |
651 | void ev_loop (int flags) |
1646 | ev_loop (EV_P_ int flags) |
652 | { |
1647 | { |
653 | double block; |
1648 | loop_done = EVUNLOOP_CANCEL; |
654 | ev_loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
1649 | |
|
|
1650 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
655 | |
1651 | |
656 | do |
1652 | do |
657 | { |
1653 | { |
|
|
1654 | #ifndef _WIN32 |
|
|
1655 | if (expect_false (curpid)) /* penalise the forking check even more */ |
|
|
1656 | if (expect_false (getpid () != curpid)) |
|
|
1657 | { |
|
|
1658 | curpid = getpid (); |
|
|
1659 | postfork = 1; |
|
|
1660 | } |
|
|
1661 | #endif |
|
|
1662 | |
|
|
1663 | #if EV_FORK_ENABLE |
|
|
1664 | /* we might have forked, so queue fork handlers */ |
|
|
1665 | if (expect_false (postfork)) |
|
|
1666 | if (forkcnt) |
|
|
1667 | { |
|
|
1668 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
|
|
1669 | call_pending (EV_A); |
|
|
1670 | } |
|
|
1671 | #endif |
|
|
1672 | |
658 | /* queue check watchers (and execute them) */ |
1673 | /* queue prepare watchers (and execute them) */ |
659 | if (preparecnt) |
1674 | if (expect_false (preparecnt)) |
660 | { |
1675 | { |
661 | queue_events ((W *)prepares, preparecnt, EV_PREPARE); |
1676 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
662 | call_pending (); |
1677 | call_pending (EV_A); |
663 | } |
1678 | } |
664 | |
1679 | |
|
|
1680 | if (expect_false (!activecnt)) |
|
|
1681 | break; |
|
|
1682 | |
|
|
1683 | /* we might have forked, so reify kernel state if necessary */ |
|
|
1684 | if (expect_false (postfork)) |
|
|
1685 | loop_fork (EV_A); |
|
|
1686 | |
665 | /* update fd-related kernel structures */ |
1687 | /* update fd-related kernel structures */ |
666 | fd_reify (); |
1688 | fd_reify (EV_A); |
667 | |
1689 | |
668 | /* calculate blocking time */ |
1690 | /* calculate blocking time */ |
|
|
1691 | { |
|
|
1692 | ev_tstamp waittime = 0.; |
|
|
1693 | ev_tstamp sleeptime = 0.; |
669 | |
1694 | |
670 | /* we only need this for !monotonic clockor timers, but as we basically |
1695 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
671 | always have timers, we just calculate it always */ |
|
|
672 | ev_now = ev_time (); |
|
|
673 | |
|
|
674 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
|
|
675 | block = 0.; |
|
|
676 | else |
|
|
677 | { |
1696 | { |
|
|
1697 | /* update time to cancel out callback processing overhead */ |
|
|
1698 | time_update (EV_A_ 1e100); |
|
|
1699 | |
678 | block = MAX_BLOCKTIME; |
1700 | waittime = MAX_BLOCKTIME; |
679 | |
1701 | |
680 | if (timercnt) |
1702 | if (timercnt) |
681 | { |
1703 | { |
682 | ev_tstamp to = timers [0]->at - (have_monotonic ? get_clock () : ev_now) + method_fudge; |
1704 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
683 | if (block > to) block = to; |
1705 | if (waittime > to) waittime = to; |
684 | } |
1706 | } |
685 | |
1707 | |
|
|
1708 | #if EV_PERIODIC_ENABLE |
686 | if (periodiccnt) |
1709 | if (periodiccnt) |
687 | { |
1710 | { |
688 | ev_tstamp to = periodics [0]->at - ev_now + method_fudge; |
1711 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
689 | if (block > to) block = to; |
1712 | if (waittime > to) waittime = to; |
690 | } |
1713 | } |
|
|
1714 | #endif |
691 | |
1715 | |
692 | if (block < 0.) block = 0.; |
1716 | if (expect_false (waittime < timeout_blocktime)) |
|
|
1717 | waittime = timeout_blocktime; |
|
|
1718 | |
|
|
1719 | sleeptime = waittime - backend_fudge; |
|
|
1720 | |
|
|
1721 | if (expect_true (sleeptime > io_blocktime)) |
|
|
1722 | sleeptime = io_blocktime; |
|
|
1723 | |
|
|
1724 | if (sleeptime) |
|
|
1725 | { |
|
|
1726 | ev_sleep (sleeptime); |
|
|
1727 | waittime -= sleeptime; |
|
|
1728 | } |
693 | } |
1729 | } |
694 | |
1730 | |
695 | method_poll (block); |
1731 | ++loop_count; |
|
|
1732 | backend_poll (EV_A_ waittime); |
696 | |
1733 | |
697 | /* update ev_now, do magic */ |
1734 | /* update ev_rt_now, do magic */ |
698 | time_update (); |
1735 | time_update (EV_A_ waittime + sleeptime); |
|
|
1736 | } |
699 | |
1737 | |
700 | /* queue pending timers and reschedule them */ |
1738 | /* queue pending timers and reschedule them */ |
701 | timers_reify (); /* relative timers called last */ |
1739 | timers_reify (EV_A); /* relative timers called last */ |
|
|
1740 | #if EV_PERIODIC_ENABLE |
702 | periodics_reify (); /* absolute timers called first */ |
1741 | periodics_reify (EV_A); /* absolute timers called first */ |
|
|
1742 | #endif |
703 | |
1743 | |
|
|
1744 | #if EV_IDLE_ENABLE |
704 | /* queue idle watchers unless io or timers are pending */ |
1745 | /* queue idle watchers unless other events are pending */ |
705 | if (!pendingcnt) |
1746 | idle_reify (EV_A); |
706 | queue_events ((W *)idles, idlecnt, EV_IDLE); |
1747 | #endif |
707 | |
1748 | |
708 | /* queue check watchers, to be executed first */ |
1749 | /* queue check watchers, to be executed first */ |
709 | if (checkcnt) |
1750 | if (expect_false (checkcnt)) |
710 | queue_events ((W *)checks, checkcnt, EV_CHECK); |
1751 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
711 | |
1752 | |
712 | call_pending (); |
1753 | call_pending (EV_A); |
713 | } |
1754 | } |
714 | while (!ev_loop_done); |
1755 | while (expect_true ( |
|
|
1756 | activecnt |
|
|
1757 | && !loop_done |
|
|
1758 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
1759 | )); |
715 | |
1760 | |
716 | if (ev_loop_done != 2) |
1761 | if (loop_done == EVUNLOOP_ONE) |
|
|
1762 | loop_done = EVUNLOOP_CANCEL; |
|
|
1763 | } |
|
|
1764 | |
|
|
1765 | void |
|
|
1766 | ev_unloop (EV_P_ int how) |
|
|
1767 | { |
717 | ev_loop_done = 0; |
1768 | loop_done = how; |
718 | } |
1769 | } |
719 | |
1770 | |
720 | /*****************************************************************************/ |
1771 | /*****************************************************************************/ |
721 | |
1772 | |
722 | static void |
1773 | void inline_size |
723 | wlist_add (WL *head, WL elem) |
1774 | wlist_add (WL *head, WL elem) |
724 | { |
1775 | { |
725 | elem->next = *head; |
1776 | elem->next = *head; |
726 | *head = elem; |
1777 | *head = elem; |
727 | } |
1778 | } |
728 | |
1779 | |
729 | static void |
1780 | void inline_size |
730 | wlist_del (WL *head, WL elem) |
1781 | wlist_del (WL *head, WL elem) |
731 | { |
1782 | { |
732 | while (*head) |
1783 | while (*head) |
733 | { |
1784 | { |
734 | if (*head == elem) |
1785 | if (*head == elem) |
… | |
… | |
739 | |
1790 | |
740 | head = &(*head)->next; |
1791 | head = &(*head)->next; |
741 | } |
1792 | } |
742 | } |
1793 | } |
743 | |
1794 | |
744 | static void |
1795 | void inline_speed |
745 | ev_clear_pending (W w) |
1796 | clear_pending (EV_P_ W w) |
746 | { |
1797 | { |
747 | if (w->pending) |
1798 | if (w->pending) |
748 | { |
1799 | { |
749 | pendings [w->pending - 1].w = 0; |
1800 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
750 | w->pending = 0; |
1801 | w->pending = 0; |
751 | } |
1802 | } |
752 | } |
1803 | } |
753 | |
1804 | |
754 | static void |
1805 | int |
|
|
1806 | ev_clear_pending (EV_P_ void *w) |
|
|
1807 | { |
|
|
1808 | W w_ = (W)w; |
|
|
1809 | int pending = w_->pending; |
|
|
1810 | |
|
|
1811 | if (expect_true (pending)) |
|
|
1812 | { |
|
|
1813 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
1814 | w_->pending = 0; |
|
|
1815 | p->w = 0; |
|
|
1816 | return p->events; |
|
|
1817 | } |
|
|
1818 | else |
|
|
1819 | return 0; |
|
|
1820 | } |
|
|
1821 | |
|
|
1822 | void inline_size |
|
|
1823 | pri_adjust (EV_P_ W w) |
|
|
1824 | { |
|
|
1825 | int pri = w->priority; |
|
|
1826 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
|
|
1827 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
|
|
1828 | w->priority = pri; |
|
|
1829 | } |
|
|
1830 | |
|
|
1831 | void inline_speed |
755 | ev_start (W w, int active) |
1832 | ev_start (EV_P_ W w, int active) |
756 | { |
1833 | { |
|
|
1834 | pri_adjust (EV_A_ w); |
757 | w->active = active; |
1835 | w->active = active; |
|
|
1836 | ev_ref (EV_A); |
758 | } |
1837 | } |
759 | |
1838 | |
760 | static void |
1839 | void inline_size |
761 | ev_stop (W w) |
1840 | ev_stop (EV_P_ W w) |
762 | { |
1841 | { |
|
|
1842 | ev_unref (EV_A); |
763 | w->active = 0; |
1843 | w->active = 0; |
764 | } |
1844 | } |
765 | |
1845 | |
766 | /*****************************************************************************/ |
1846 | /*****************************************************************************/ |
767 | |
1847 | |
768 | void |
1848 | void noinline |
769 | ev_io_start (struct ev_io *w) |
1849 | ev_io_start (EV_P_ ev_io *w) |
770 | { |
1850 | { |
771 | int fd = w->fd; |
1851 | int fd = w->fd; |
772 | |
1852 | |
773 | if (ev_is_active (w)) |
1853 | if (expect_false (ev_is_active (w))) |
774 | return; |
1854 | return; |
775 | |
1855 | |
776 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1856 | assert (("ev_io_start called with negative fd", fd >= 0)); |
777 | |
1857 | |
778 | ev_start ((W)w, 1); |
1858 | ev_start (EV_A_ (W)w, 1); |
779 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
1859 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
780 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1860 | wlist_add (&anfds[fd].head, (WL)w); |
781 | |
1861 | |
782 | fd_change (fd); |
1862 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
|
|
1863 | w->events &= ~EV_IOFDSET; |
783 | } |
1864 | } |
784 | |
1865 | |
785 | void |
1866 | void noinline |
786 | ev_io_stop (struct ev_io *w) |
1867 | ev_io_stop (EV_P_ ev_io *w) |
787 | { |
1868 | { |
788 | ev_clear_pending ((W)w); |
1869 | clear_pending (EV_A_ (W)w); |
789 | if (!ev_is_active (w)) |
1870 | if (expect_false (!ev_is_active (w))) |
790 | return; |
1871 | return; |
791 | |
1872 | |
|
|
1873 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
1874 | |
792 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1875 | wlist_del (&anfds[w->fd].head, (WL)w); |
793 | ev_stop ((W)w); |
1876 | ev_stop (EV_A_ (W)w); |
794 | |
1877 | |
795 | fd_change (w->fd); |
1878 | fd_change (EV_A_ w->fd, 1); |
796 | } |
1879 | } |
797 | |
1880 | |
798 | void |
1881 | void noinline |
799 | ev_timer_start (struct ev_timer *w) |
1882 | ev_timer_start (EV_P_ ev_timer *w) |
800 | { |
1883 | { |
801 | if (ev_is_active (w)) |
1884 | if (expect_false (ev_is_active (w))) |
802 | return; |
1885 | return; |
803 | |
1886 | |
804 | w->at += now; |
1887 | ((WT)w)->at += mn_now; |
805 | |
1888 | |
806 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1889 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
807 | |
1890 | |
808 | ev_start ((W)w, ++timercnt); |
1891 | ev_start (EV_A_ (W)w, ++timercnt); |
809 | array_needsize (timers, timermax, timercnt, ); |
1892 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
810 | timers [timercnt - 1] = w; |
1893 | timers [timercnt - 1] = (WT)w; |
811 | upheap ((WT *)timers, timercnt - 1); |
1894 | upheap (timers, timercnt - 1); |
812 | } |
|
|
813 | |
1895 | |
814 | void |
1896 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
|
|
1897 | } |
|
|
1898 | |
|
|
1899 | void noinline |
815 | ev_timer_stop (struct ev_timer *w) |
1900 | ev_timer_stop (EV_P_ ev_timer *w) |
816 | { |
1901 | { |
817 | ev_clear_pending ((W)w); |
1902 | clear_pending (EV_A_ (W)w); |
818 | if (!ev_is_active (w)) |
1903 | if (expect_false (!ev_is_active (w))) |
819 | return; |
1904 | return; |
820 | |
1905 | |
821 | if (w->active < timercnt--) |
1906 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
|
|
1907 | |
|
|
1908 | { |
|
|
1909 | int active = ((W)w)->active; |
|
|
1910 | |
|
|
1911 | if (expect_true (--active < --timercnt)) |
822 | { |
1912 | { |
823 | timers [w->active - 1] = timers [timercnt]; |
1913 | timers [active] = timers [timercnt]; |
824 | downheap ((WT *)timers, timercnt, w->active - 1); |
1914 | adjustheap (timers, timercnt, active); |
825 | } |
1915 | } |
|
|
1916 | } |
826 | |
1917 | |
827 | w->at = w->repeat; |
1918 | ((WT)w)->at -= mn_now; |
828 | |
1919 | |
829 | ev_stop ((W)w); |
1920 | ev_stop (EV_A_ (W)w); |
830 | } |
1921 | } |
831 | |
1922 | |
832 | void |
1923 | void noinline |
833 | ev_timer_again (struct ev_timer *w) |
1924 | ev_timer_again (EV_P_ ev_timer *w) |
834 | { |
1925 | { |
835 | if (ev_is_active (w)) |
1926 | if (ev_is_active (w)) |
836 | { |
1927 | { |
837 | if (w->repeat) |
1928 | if (w->repeat) |
838 | { |
1929 | { |
839 | w->at = now + w->repeat; |
1930 | ((WT)w)->at = mn_now + w->repeat; |
840 | downheap ((WT *)timers, timercnt, w->active - 1); |
1931 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
841 | } |
1932 | } |
842 | else |
1933 | else |
843 | ev_timer_stop (w); |
1934 | ev_timer_stop (EV_A_ w); |
844 | } |
1935 | } |
845 | else if (w->repeat) |
1936 | else if (w->repeat) |
|
|
1937 | { |
|
|
1938 | w->at = w->repeat; |
846 | ev_timer_start (w); |
1939 | ev_timer_start (EV_A_ w); |
|
|
1940 | } |
847 | } |
1941 | } |
848 | |
1942 | |
849 | void |
1943 | #if EV_PERIODIC_ENABLE |
|
|
1944 | void noinline |
850 | ev_periodic_start (struct ev_periodic *w) |
1945 | ev_periodic_start (EV_P_ ev_periodic *w) |
851 | { |
1946 | { |
852 | if (ev_is_active (w)) |
1947 | if (expect_false (ev_is_active (w))) |
853 | return; |
1948 | return; |
854 | |
1949 | |
|
|
1950 | if (w->reschedule_cb) |
|
|
1951 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1952 | else if (w->interval) |
|
|
1953 | { |
855 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1954 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
856 | |
|
|
857 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1955 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
858 | if (w->interval) |
|
|
859 | w->at += ceil ((ev_now - w->at) / w->interval) * w->interval; |
1956 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1957 | } |
|
|
1958 | else |
|
|
1959 | ((WT)w)->at = w->offset; |
860 | |
1960 | |
861 | ev_start ((W)w, ++periodiccnt); |
1961 | ev_start (EV_A_ (W)w, ++periodiccnt); |
862 | array_needsize (periodics, periodicmax, periodiccnt, ); |
1962 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
863 | periodics [periodiccnt - 1] = w; |
1963 | periodics [periodiccnt - 1] = (WT)w; |
864 | upheap ((WT *)periodics, periodiccnt - 1); |
1964 | upheap (periodics, periodiccnt - 1); |
865 | } |
|
|
866 | |
1965 | |
867 | void |
1966 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
|
|
1967 | } |
|
|
1968 | |
|
|
1969 | void noinline |
868 | ev_periodic_stop (struct ev_periodic *w) |
1970 | ev_periodic_stop (EV_P_ ev_periodic *w) |
869 | { |
1971 | { |
870 | ev_clear_pending ((W)w); |
1972 | clear_pending (EV_A_ (W)w); |
871 | if (!ev_is_active (w)) |
1973 | if (expect_false (!ev_is_active (w))) |
872 | return; |
1974 | return; |
873 | |
1975 | |
874 | if (w->active < periodiccnt--) |
1976 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
|
|
1977 | |
|
|
1978 | { |
|
|
1979 | int active = ((W)w)->active; |
|
|
1980 | |
|
|
1981 | if (expect_true (--active < --periodiccnt)) |
875 | { |
1982 | { |
876 | periodics [w->active - 1] = periodics [periodiccnt]; |
1983 | periodics [active] = periodics [periodiccnt]; |
877 | downheap ((WT *)periodics, periodiccnt, w->active - 1); |
1984 | adjustheap (periodics, periodiccnt, active); |
878 | } |
1985 | } |
|
|
1986 | } |
879 | |
1987 | |
880 | ev_stop ((W)w); |
1988 | ev_stop (EV_A_ (W)w); |
881 | } |
1989 | } |
882 | |
1990 | |
883 | void |
1991 | void noinline |
|
|
1992 | ev_periodic_again (EV_P_ ev_periodic *w) |
|
|
1993 | { |
|
|
1994 | /* TODO: use adjustheap and recalculation */ |
|
|
1995 | ev_periodic_stop (EV_A_ w); |
|
|
1996 | ev_periodic_start (EV_A_ w); |
|
|
1997 | } |
|
|
1998 | #endif |
|
|
1999 | |
|
|
2000 | #ifndef SA_RESTART |
|
|
2001 | # define SA_RESTART 0 |
|
|
2002 | #endif |
|
|
2003 | |
|
|
2004 | void noinline |
884 | ev_signal_start (struct ev_signal *w) |
2005 | ev_signal_start (EV_P_ ev_signal *w) |
885 | { |
2006 | { |
|
|
2007 | #if EV_MULTIPLICITY |
|
|
2008 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2009 | #endif |
886 | if (ev_is_active (w)) |
2010 | if (expect_false (ev_is_active (w))) |
887 | return; |
2011 | return; |
888 | |
2012 | |
889 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2013 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
890 | |
2014 | |
891 | ev_start ((W)w, 1); |
2015 | evpipe_init (EV_A); |
|
|
2016 | |
|
|
2017 | { |
|
|
2018 | #ifndef _WIN32 |
|
|
2019 | sigset_t full, prev; |
|
|
2020 | sigfillset (&full); |
|
|
2021 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2022 | #endif |
|
|
2023 | |
892 | array_needsize (signals, signalmax, w->signum, signals_init); |
2024 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
2025 | |
|
|
2026 | #ifndef _WIN32 |
|
|
2027 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
2028 | #endif |
|
|
2029 | } |
|
|
2030 | |
|
|
2031 | ev_start (EV_A_ (W)w, 1); |
893 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
2032 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
894 | |
2033 | |
895 | if (!w->next) |
2034 | if (!((WL)w)->next) |
896 | { |
2035 | { |
|
|
2036 | #if _WIN32 |
|
|
2037 | signal (w->signum, ev_sighandler); |
|
|
2038 | #else |
897 | struct sigaction sa; |
2039 | struct sigaction sa; |
898 | sa.sa_handler = sighandler; |
2040 | sa.sa_handler = ev_sighandler; |
899 | sigfillset (&sa.sa_mask); |
2041 | sigfillset (&sa.sa_mask); |
900 | sa.sa_flags = 0; |
2042 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
901 | sigaction (w->signum, &sa, 0); |
2043 | sigaction (w->signum, &sa, 0); |
|
|
2044 | #endif |
902 | } |
2045 | } |
903 | } |
2046 | } |
904 | |
2047 | |
905 | void |
2048 | void noinline |
906 | ev_signal_stop (struct ev_signal *w) |
2049 | ev_signal_stop (EV_P_ ev_signal *w) |
907 | { |
2050 | { |
908 | ev_clear_pending ((W)w); |
2051 | clear_pending (EV_A_ (W)w); |
909 | if (!ev_is_active (w)) |
2052 | if (expect_false (!ev_is_active (w))) |
910 | return; |
2053 | return; |
911 | |
2054 | |
912 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
2055 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
913 | ev_stop ((W)w); |
2056 | ev_stop (EV_A_ (W)w); |
914 | |
2057 | |
915 | if (!signals [w->signum - 1].head) |
2058 | if (!signals [w->signum - 1].head) |
916 | signal (w->signum, SIG_DFL); |
2059 | signal (w->signum, SIG_DFL); |
917 | } |
2060 | } |
918 | |
2061 | |
919 | void |
2062 | void |
920 | ev_idle_start (struct ev_idle *w) |
2063 | ev_child_start (EV_P_ ev_child *w) |
921 | { |
2064 | { |
|
|
2065 | #if EV_MULTIPLICITY |
|
|
2066 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2067 | #endif |
922 | if (ev_is_active (w)) |
2068 | if (expect_false (ev_is_active (w))) |
923 | return; |
2069 | return; |
924 | |
2070 | |
925 | ev_start ((W)w, ++idlecnt); |
2071 | ev_start (EV_A_ (W)w, 1); |
926 | array_needsize (idles, idlemax, idlecnt, ); |
2072 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
927 | idles [idlecnt - 1] = w; |
|
|
928 | } |
2073 | } |
929 | |
2074 | |
930 | void |
2075 | void |
931 | ev_idle_stop (struct ev_idle *w) |
2076 | ev_child_stop (EV_P_ ev_child *w) |
932 | { |
2077 | { |
933 | ev_clear_pending ((W)w); |
2078 | clear_pending (EV_A_ (W)w); |
934 | if (ev_is_active (w)) |
2079 | if (expect_false (!ev_is_active (w))) |
935 | return; |
2080 | return; |
936 | |
2081 | |
937 | idles [w->active - 1] = idles [--idlecnt]; |
2082 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
938 | ev_stop ((W)w); |
2083 | ev_stop (EV_A_ (W)w); |
939 | } |
2084 | } |
940 | |
2085 | |
|
|
2086 | #if EV_STAT_ENABLE |
|
|
2087 | |
|
|
2088 | # ifdef _WIN32 |
|
|
2089 | # undef lstat |
|
|
2090 | # define lstat(a,b) _stati64 (a,b) |
|
|
2091 | # endif |
|
|
2092 | |
|
|
2093 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2094 | #define MIN_STAT_INTERVAL 0.1074891 |
|
|
2095 | |
|
|
2096 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
|
|
2097 | |
|
|
2098 | #if EV_USE_INOTIFY |
|
|
2099 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
2100 | |
|
|
2101 | static void noinline |
|
|
2102 | infy_add (EV_P_ ev_stat *w) |
|
|
2103 | { |
|
|
2104 | 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); |
|
|
2105 | |
|
|
2106 | if (w->wd < 0) |
|
|
2107 | { |
|
|
2108 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2109 | |
|
|
2110 | /* monitor some parent directory for speedup hints */ |
|
|
2111 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
|
|
2112 | { |
|
|
2113 | char path [4096]; |
|
|
2114 | strcpy (path, w->path); |
|
|
2115 | |
|
|
2116 | do |
|
|
2117 | { |
|
|
2118 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
|
|
2119 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
|
|
2120 | |
|
|
2121 | char *pend = strrchr (path, '/'); |
|
|
2122 | |
|
|
2123 | if (!pend) |
|
|
2124 | break; /* whoops, no '/', complain to your admin */ |
|
|
2125 | |
|
|
2126 | *pend = 0; |
|
|
2127 | w->wd = inotify_add_watch (fs_fd, path, mask); |
|
|
2128 | } |
|
|
2129 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
|
|
2130 | } |
|
|
2131 | } |
|
|
2132 | else |
|
|
2133 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2134 | |
|
|
2135 | if (w->wd >= 0) |
|
|
2136 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2137 | } |
|
|
2138 | |
|
|
2139 | static void noinline |
|
|
2140 | infy_del (EV_P_ ev_stat *w) |
|
|
2141 | { |
|
|
2142 | int slot; |
|
|
2143 | int wd = w->wd; |
|
|
2144 | |
|
|
2145 | if (wd < 0) |
|
|
2146 | return; |
|
|
2147 | |
|
|
2148 | w->wd = -2; |
|
|
2149 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
|
|
2150 | wlist_del (&fs_hash [slot].head, (WL)w); |
|
|
2151 | |
|
|
2152 | /* remove this watcher, if others are watching it, they will rearm */ |
|
|
2153 | inotify_rm_watch (fs_fd, wd); |
|
|
2154 | } |
|
|
2155 | |
|
|
2156 | static void noinline |
|
|
2157 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
|
|
2158 | { |
|
|
2159 | if (slot < 0) |
|
|
2160 | /* overflow, need to check for all hahs slots */ |
|
|
2161 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2162 | infy_wd (EV_A_ slot, wd, ev); |
|
|
2163 | else |
|
|
2164 | { |
|
|
2165 | WL w_; |
|
|
2166 | |
|
|
2167 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
|
|
2168 | { |
|
|
2169 | ev_stat *w = (ev_stat *)w_; |
|
|
2170 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
|
|
2171 | |
|
|
2172 | if (w->wd == wd || wd == -1) |
|
|
2173 | { |
|
|
2174 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
|
|
2175 | { |
|
|
2176 | w->wd = -1; |
|
|
2177 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2178 | } |
|
|
2179 | |
|
|
2180 | stat_timer_cb (EV_A_ &w->timer, 0); |
|
|
2181 | } |
|
|
2182 | } |
|
|
2183 | } |
|
|
2184 | } |
|
|
2185 | |
|
|
2186 | static void |
|
|
2187 | infy_cb (EV_P_ ev_io *w, int revents) |
|
|
2188 | { |
|
|
2189 | char buf [EV_INOTIFY_BUFSIZE]; |
|
|
2190 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2191 | int ofs; |
|
|
2192 | int len = read (fs_fd, buf, sizeof (buf)); |
|
|
2193 | |
|
|
2194 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
|
|
2195 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
2196 | } |
|
|
2197 | |
|
|
2198 | void inline_size |
|
|
2199 | infy_init (EV_P) |
|
|
2200 | { |
|
|
2201 | if (fs_fd != -2) |
|
|
2202 | return; |
|
|
2203 | |
|
|
2204 | fs_fd = inotify_init (); |
|
|
2205 | |
|
|
2206 | if (fs_fd >= 0) |
|
|
2207 | { |
|
|
2208 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
|
|
2209 | ev_set_priority (&fs_w, EV_MAXPRI); |
|
|
2210 | ev_io_start (EV_A_ &fs_w); |
|
|
2211 | } |
|
|
2212 | } |
|
|
2213 | |
|
|
2214 | void inline_size |
|
|
2215 | infy_fork (EV_P) |
|
|
2216 | { |
|
|
2217 | int slot; |
|
|
2218 | |
|
|
2219 | if (fs_fd < 0) |
|
|
2220 | return; |
|
|
2221 | |
|
|
2222 | close (fs_fd); |
|
|
2223 | fs_fd = inotify_init (); |
|
|
2224 | |
|
|
2225 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2226 | { |
|
|
2227 | WL w_ = fs_hash [slot].head; |
|
|
2228 | fs_hash [slot].head = 0; |
|
|
2229 | |
|
|
2230 | while (w_) |
|
|
2231 | { |
|
|
2232 | ev_stat *w = (ev_stat *)w_; |
|
|
2233 | w_ = w_->next; /* lets us add this watcher */ |
|
|
2234 | |
|
|
2235 | w->wd = -1; |
|
|
2236 | |
|
|
2237 | if (fs_fd >= 0) |
|
|
2238 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2239 | else |
|
|
2240 | ev_timer_start (EV_A_ &w->timer); |
|
|
2241 | } |
|
|
2242 | |
|
|
2243 | } |
|
|
2244 | } |
|
|
2245 | |
|
|
2246 | #endif |
|
|
2247 | |
941 | void |
2248 | void |
|
|
2249 | ev_stat_stat (EV_P_ ev_stat *w) |
|
|
2250 | { |
|
|
2251 | if (lstat (w->path, &w->attr) < 0) |
|
|
2252 | w->attr.st_nlink = 0; |
|
|
2253 | else if (!w->attr.st_nlink) |
|
|
2254 | w->attr.st_nlink = 1; |
|
|
2255 | } |
|
|
2256 | |
|
|
2257 | static void noinline |
|
|
2258 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
2259 | { |
|
|
2260 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
2261 | |
|
|
2262 | /* we copy this here each the time so that */ |
|
|
2263 | /* prev has the old value when the callback gets invoked */ |
|
|
2264 | w->prev = w->attr; |
|
|
2265 | ev_stat_stat (EV_A_ w); |
|
|
2266 | |
|
|
2267 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
|
|
2268 | if ( |
|
|
2269 | w->prev.st_dev != w->attr.st_dev |
|
|
2270 | || w->prev.st_ino != w->attr.st_ino |
|
|
2271 | || w->prev.st_mode != w->attr.st_mode |
|
|
2272 | || w->prev.st_nlink != w->attr.st_nlink |
|
|
2273 | || w->prev.st_uid != w->attr.st_uid |
|
|
2274 | || w->prev.st_gid != w->attr.st_gid |
|
|
2275 | || w->prev.st_rdev != w->attr.st_rdev |
|
|
2276 | || w->prev.st_size != w->attr.st_size |
|
|
2277 | || w->prev.st_atime != w->attr.st_atime |
|
|
2278 | || w->prev.st_mtime != w->attr.st_mtime |
|
|
2279 | || w->prev.st_ctime != w->attr.st_ctime |
|
|
2280 | ) { |
|
|
2281 | #if EV_USE_INOTIFY |
|
|
2282 | infy_del (EV_A_ w); |
|
|
2283 | infy_add (EV_A_ w); |
|
|
2284 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2285 | #endif |
|
|
2286 | |
|
|
2287 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
2288 | } |
|
|
2289 | } |
|
|
2290 | |
|
|
2291 | void |
|
|
2292 | ev_stat_start (EV_P_ ev_stat *w) |
|
|
2293 | { |
|
|
2294 | if (expect_false (ev_is_active (w))) |
|
|
2295 | return; |
|
|
2296 | |
|
|
2297 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2298 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2299 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2300 | |
|
|
2301 | ev_stat_stat (EV_A_ w); |
|
|
2302 | |
|
|
2303 | if (w->interval < MIN_STAT_INTERVAL) |
|
|
2304 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2305 | |
|
|
2306 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
|
|
2307 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
2308 | |
|
|
2309 | #if EV_USE_INOTIFY |
|
|
2310 | infy_init (EV_A); |
|
|
2311 | |
|
|
2312 | if (fs_fd >= 0) |
|
|
2313 | infy_add (EV_A_ w); |
|
|
2314 | else |
|
|
2315 | #endif |
|
|
2316 | ev_timer_start (EV_A_ &w->timer); |
|
|
2317 | |
|
|
2318 | ev_start (EV_A_ (W)w, 1); |
|
|
2319 | } |
|
|
2320 | |
|
|
2321 | void |
|
|
2322 | ev_stat_stop (EV_P_ ev_stat *w) |
|
|
2323 | { |
|
|
2324 | clear_pending (EV_A_ (W)w); |
|
|
2325 | if (expect_false (!ev_is_active (w))) |
|
|
2326 | return; |
|
|
2327 | |
|
|
2328 | #if EV_USE_INOTIFY |
|
|
2329 | infy_del (EV_A_ w); |
|
|
2330 | #endif |
|
|
2331 | ev_timer_stop (EV_A_ &w->timer); |
|
|
2332 | |
|
|
2333 | ev_stop (EV_A_ (W)w); |
|
|
2334 | } |
|
|
2335 | #endif |
|
|
2336 | |
|
|
2337 | #if EV_IDLE_ENABLE |
|
|
2338 | void |
|
|
2339 | ev_idle_start (EV_P_ ev_idle *w) |
|
|
2340 | { |
|
|
2341 | if (expect_false (ev_is_active (w))) |
|
|
2342 | return; |
|
|
2343 | |
|
|
2344 | pri_adjust (EV_A_ (W)w); |
|
|
2345 | |
|
|
2346 | { |
|
|
2347 | int active = ++idlecnt [ABSPRI (w)]; |
|
|
2348 | |
|
|
2349 | ++idleall; |
|
|
2350 | ev_start (EV_A_ (W)w, active); |
|
|
2351 | |
|
|
2352 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
|
|
2353 | idles [ABSPRI (w)][active - 1] = w; |
|
|
2354 | } |
|
|
2355 | } |
|
|
2356 | |
|
|
2357 | void |
|
|
2358 | ev_idle_stop (EV_P_ ev_idle *w) |
|
|
2359 | { |
|
|
2360 | clear_pending (EV_A_ (W)w); |
|
|
2361 | if (expect_false (!ev_is_active (w))) |
|
|
2362 | return; |
|
|
2363 | |
|
|
2364 | { |
|
|
2365 | int active = ((W)w)->active; |
|
|
2366 | |
|
|
2367 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
|
|
2368 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
|
|
2369 | |
|
|
2370 | ev_stop (EV_A_ (W)w); |
|
|
2371 | --idleall; |
|
|
2372 | } |
|
|
2373 | } |
|
|
2374 | #endif |
|
|
2375 | |
|
|
2376 | void |
942 | ev_prepare_start (struct ev_prepare *w) |
2377 | ev_prepare_start (EV_P_ ev_prepare *w) |
943 | { |
2378 | { |
944 | if (ev_is_active (w)) |
2379 | if (expect_false (ev_is_active (w))) |
945 | return; |
2380 | return; |
946 | |
2381 | |
947 | ev_start ((W)w, ++preparecnt); |
2382 | ev_start (EV_A_ (W)w, ++preparecnt); |
948 | array_needsize (prepares, preparemax, preparecnt, ); |
2383 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
949 | prepares [preparecnt - 1] = w; |
2384 | prepares [preparecnt - 1] = w; |
950 | } |
2385 | } |
951 | |
2386 | |
952 | void |
2387 | void |
953 | ev_prepare_stop (struct ev_prepare *w) |
2388 | ev_prepare_stop (EV_P_ ev_prepare *w) |
954 | { |
2389 | { |
955 | ev_clear_pending ((W)w); |
2390 | clear_pending (EV_A_ (W)w); |
956 | if (ev_is_active (w)) |
2391 | if (expect_false (!ev_is_active (w))) |
957 | return; |
2392 | return; |
958 | |
2393 | |
|
|
2394 | { |
|
|
2395 | int active = ((W)w)->active; |
959 | prepares [w->active - 1] = prepares [--preparecnt]; |
2396 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
2397 | ((W)prepares [active - 1])->active = active; |
|
|
2398 | } |
|
|
2399 | |
960 | ev_stop ((W)w); |
2400 | ev_stop (EV_A_ (W)w); |
961 | } |
2401 | } |
962 | |
2402 | |
963 | void |
2403 | void |
964 | ev_check_start (struct ev_check *w) |
2404 | ev_check_start (EV_P_ ev_check *w) |
965 | { |
2405 | { |
966 | if (ev_is_active (w)) |
2406 | if (expect_false (ev_is_active (w))) |
967 | return; |
2407 | return; |
968 | |
2408 | |
969 | ev_start ((W)w, ++checkcnt); |
2409 | ev_start (EV_A_ (W)w, ++checkcnt); |
970 | array_needsize (checks, checkmax, checkcnt, ); |
2410 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
971 | checks [checkcnt - 1] = w; |
2411 | checks [checkcnt - 1] = w; |
972 | } |
2412 | } |
973 | |
2413 | |
974 | void |
2414 | void |
975 | ev_check_stop (struct ev_check *w) |
2415 | ev_check_stop (EV_P_ ev_check *w) |
976 | { |
2416 | { |
977 | ev_clear_pending ((W)w); |
2417 | clear_pending (EV_A_ (W)w); |
978 | if (ev_is_active (w)) |
2418 | if (expect_false (!ev_is_active (w))) |
979 | return; |
2419 | return; |
980 | |
2420 | |
|
|
2421 | { |
|
|
2422 | int active = ((W)w)->active; |
981 | checks [w->active - 1] = checks [--checkcnt]; |
2423 | checks [active - 1] = checks [--checkcnt]; |
|
|
2424 | ((W)checks [active - 1])->active = active; |
|
|
2425 | } |
|
|
2426 | |
982 | ev_stop ((W)w); |
2427 | ev_stop (EV_A_ (W)w); |
983 | } |
2428 | } |
984 | |
2429 | |
985 | void |
2430 | #if EV_EMBED_ENABLE |
986 | ev_child_start (struct ev_child *w) |
2431 | void noinline |
|
|
2432 | ev_embed_sweep (EV_P_ ev_embed *w) |
987 | { |
2433 | { |
|
|
2434 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2435 | } |
|
|
2436 | |
|
|
2437 | static void |
|
|
2438 | embed_io_cb (EV_P_ ev_io *io, int revents) |
|
|
2439 | { |
|
|
2440 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
|
|
2441 | |
988 | if (ev_is_active (w)) |
2442 | if (ev_cb (w)) |
989 | return; |
2443 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
|
|
2444 | else |
|
|
2445 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2446 | } |
990 | |
2447 | |
|
|
2448 | static void |
|
|
2449 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
2450 | { |
|
|
2451 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
2452 | |
|
|
2453 | { |
|
|
2454 | struct ev_loop *loop = w->other; |
|
|
2455 | |
|
|
2456 | while (fdchangecnt) |
|
|
2457 | { |
|
|
2458 | fd_reify (EV_A); |
|
|
2459 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2460 | } |
|
|
2461 | } |
|
|
2462 | } |
|
|
2463 | |
|
|
2464 | #if 0 |
|
|
2465 | static void |
|
|
2466 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
2467 | { |
|
|
2468 | ev_idle_stop (EV_A_ idle); |
|
|
2469 | } |
|
|
2470 | #endif |
|
|
2471 | |
|
|
2472 | void |
|
|
2473 | ev_embed_start (EV_P_ ev_embed *w) |
|
|
2474 | { |
|
|
2475 | if (expect_false (ev_is_active (w))) |
|
|
2476 | return; |
|
|
2477 | |
|
|
2478 | { |
|
|
2479 | struct ev_loop *loop = w->other; |
|
|
2480 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
|
|
2481 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
|
|
2482 | } |
|
|
2483 | |
|
|
2484 | ev_set_priority (&w->io, ev_priority (w)); |
|
|
2485 | ev_io_start (EV_A_ &w->io); |
|
|
2486 | |
|
|
2487 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
2488 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
2489 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
2490 | |
|
|
2491 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
2492 | |
991 | ev_start ((W)w, 1); |
2493 | ev_start (EV_A_ (W)w, 1); |
992 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
|
|
993 | } |
2494 | } |
994 | |
2495 | |
995 | void |
2496 | void |
996 | ev_child_stop (struct ev_child *w) |
2497 | ev_embed_stop (EV_P_ ev_embed *w) |
997 | { |
2498 | { |
998 | ev_clear_pending ((W)w); |
2499 | clear_pending (EV_A_ (W)w); |
999 | if (ev_is_active (w)) |
2500 | if (expect_false (!ev_is_active (w))) |
1000 | return; |
2501 | return; |
1001 | |
2502 | |
1002 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
2503 | ev_io_stop (EV_A_ &w->io); |
|
|
2504 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
2505 | |
1003 | ev_stop ((W)w); |
2506 | ev_stop (EV_A_ (W)w); |
1004 | } |
2507 | } |
|
|
2508 | #endif |
|
|
2509 | |
|
|
2510 | #if EV_FORK_ENABLE |
|
|
2511 | void |
|
|
2512 | ev_fork_start (EV_P_ ev_fork *w) |
|
|
2513 | { |
|
|
2514 | if (expect_false (ev_is_active (w))) |
|
|
2515 | return; |
|
|
2516 | |
|
|
2517 | ev_start (EV_A_ (W)w, ++forkcnt); |
|
|
2518 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
|
|
2519 | forks [forkcnt - 1] = w; |
|
|
2520 | } |
|
|
2521 | |
|
|
2522 | void |
|
|
2523 | ev_fork_stop (EV_P_ ev_fork *w) |
|
|
2524 | { |
|
|
2525 | clear_pending (EV_A_ (W)w); |
|
|
2526 | if (expect_false (!ev_is_active (w))) |
|
|
2527 | return; |
|
|
2528 | |
|
|
2529 | { |
|
|
2530 | int active = ((W)w)->active; |
|
|
2531 | forks [active - 1] = forks [--forkcnt]; |
|
|
2532 | ((W)forks [active - 1])->active = active; |
|
|
2533 | } |
|
|
2534 | |
|
|
2535 | ev_stop (EV_A_ (W)w); |
|
|
2536 | } |
|
|
2537 | #endif |
|
|
2538 | |
|
|
2539 | #if EV_ASYNC_ENABLE |
|
|
2540 | void |
|
|
2541 | ev_async_start (EV_P_ ev_async *w) |
|
|
2542 | { |
|
|
2543 | if (expect_false (ev_is_active (w))) |
|
|
2544 | return; |
|
|
2545 | |
|
|
2546 | evpipe_init (EV_A); |
|
|
2547 | |
|
|
2548 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
2549 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
2550 | asyncs [asynccnt - 1] = w; |
|
|
2551 | } |
|
|
2552 | |
|
|
2553 | void |
|
|
2554 | ev_async_stop (EV_P_ ev_async *w) |
|
|
2555 | { |
|
|
2556 | clear_pending (EV_A_ (W)w); |
|
|
2557 | if (expect_false (!ev_is_active (w))) |
|
|
2558 | return; |
|
|
2559 | |
|
|
2560 | { |
|
|
2561 | int active = ((W)w)->active; |
|
|
2562 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
2563 | ((W)asyncs [active - 1])->active = active; |
|
|
2564 | } |
|
|
2565 | |
|
|
2566 | ev_stop (EV_A_ (W)w); |
|
|
2567 | } |
|
|
2568 | |
|
|
2569 | void |
|
|
2570 | ev_async_send (EV_P_ ev_async *w) |
|
|
2571 | { |
|
|
2572 | w->sent = 1; |
|
|
2573 | evpipe_write (EV_A_ &gotasync); |
|
|
2574 | } |
|
|
2575 | #endif |
1005 | |
2576 | |
1006 | /*****************************************************************************/ |
2577 | /*****************************************************************************/ |
1007 | |
2578 | |
1008 | struct ev_once |
2579 | struct ev_once |
1009 | { |
2580 | { |
1010 | struct ev_io io; |
2581 | ev_io io; |
1011 | struct ev_timer to; |
2582 | ev_timer to; |
1012 | void (*cb)(int revents, void *arg); |
2583 | void (*cb)(int revents, void *arg); |
1013 | void *arg; |
2584 | void *arg; |
1014 | }; |
2585 | }; |
1015 | |
2586 | |
1016 | static void |
2587 | static void |
1017 | once_cb (struct ev_once *once, int revents) |
2588 | once_cb (EV_P_ struct ev_once *once, int revents) |
1018 | { |
2589 | { |
1019 | void (*cb)(int revents, void *arg) = once->cb; |
2590 | void (*cb)(int revents, void *arg) = once->cb; |
1020 | void *arg = once->arg; |
2591 | void *arg = once->arg; |
1021 | |
2592 | |
1022 | ev_io_stop (&once->io); |
2593 | ev_io_stop (EV_A_ &once->io); |
1023 | ev_timer_stop (&once->to); |
2594 | ev_timer_stop (EV_A_ &once->to); |
1024 | free (once); |
2595 | ev_free (once); |
1025 | |
2596 | |
1026 | cb (revents, arg); |
2597 | cb (revents, arg); |
1027 | } |
2598 | } |
1028 | |
2599 | |
1029 | static void |
2600 | static void |
1030 | once_cb_io (struct ev_io *w, int revents) |
2601 | once_cb_io (EV_P_ ev_io *w, int revents) |
1031 | { |
2602 | { |
1032 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
2603 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1033 | } |
2604 | } |
1034 | |
2605 | |
1035 | static void |
2606 | static void |
1036 | once_cb_to (struct ev_timer *w, int revents) |
2607 | once_cb_to (EV_P_ ev_timer *w, int revents) |
1037 | { |
2608 | { |
1038 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
2609 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1039 | } |
2610 | } |
1040 | |
2611 | |
1041 | void |
2612 | void |
1042 | ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2613 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1043 | { |
2614 | { |
1044 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
2615 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1045 | |
2616 | |
1046 | if (!once) |
2617 | if (expect_false (!once)) |
|
|
2618 | { |
1047 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
2619 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1048 | else |
2620 | return; |
1049 | { |
2621 | } |
|
|
2622 | |
1050 | once->cb = cb; |
2623 | once->cb = cb; |
1051 | once->arg = arg; |
2624 | once->arg = arg; |
1052 | |
2625 | |
1053 | ev_watcher_init (&once->io, once_cb_io); |
2626 | ev_init (&once->io, once_cb_io); |
1054 | if (fd >= 0) |
2627 | if (fd >= 0) |
1055 | { |
2628 | { |
1056 | ev_io_set (&once->io, fd, events); |
2629 | ev_io_set (&once->io, fd, events); |
1057 | ev_io_start (&once->io); |
2630 | ev_io_start (EV_A_ &once->io); |
1058 | } |
2631 | } |
1059 | |
2632 | |
1060 | ev_watcher_init (&once->to, once_cb_to); |
2633 | ev_init (&once->to, once_cb_to); |
1061 | if (timeout >= 0.) |
2634 | if (timeout >= 0.) |
1062 | { |
2635 | { |
1063 | ev_timer_set (&once->to, timeout, 0.); |
2636 | ev_timer_set (&once->to, timeout, 0.); |
1064 | ev_timer_start (&once->to); |
2637 | ev_timer_start (EV_A_ &once->to); |
1065 | } |
|
|
1066 | } |
|
|
1067 | } |
|
|
1068 | |
|
|
1069 | /*****************************************************************************/ |
|
|
1070 | |
|
|
1071 | #if 0 |
|
|
1072 | |
|
|
1073 | struct ev_io wio; |
|
|
1074 | |
|
|
1075 | static void |
|
|
1076 | sin_cb (struct ev_io *w, int revents) |
|
|
1077 | { |
|
|
1078 | fprintf (stderr, "sin %d, revents %d\n", w->fd, revents); |
|
|
1079 | } |
|
|
1080 | |
|
|
1081 | static void |
|
|
1082 | ocb (struct ev_timer *w, int revents) |
|
|
1083 | { |
|
|
1084 | //fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data); |
|
|
1085 | ev_timer_stop (w); |
|
|
1086 | ev_timer_start (w); |
|
|
1087 | } |
|
|
1088 | |
|
|
1089 | static void |
|
|
1090 | scb (struct ev_signal *w, int revents) |
|
|
1091 | { |
|
|
1092 | fprintf (stderr, "signal %x,%d\n", revents, w->signum); |
|
|
1093 | ev_io_stop (&wio); |
|
|
1094 | ev_io_start (&wio); |
|
|
1095 | } |
|
|
1096 | |
|
|
1097 | static void |
|
|
1098 | gcb (struct ev_signal *w, int revents) |
|
|
1099 | { |
|
|
1100 | fprintf (stderr, "generic %x\n", revents); |
|
|
1101 | |
|
|
1102 | } |
|
|
1103 | |
|
|
1104 | int main (void) |
|
|
1105 | { |
|
|
1106 | ev_init (0); |
|
|
1107 | |
|
|
1108 | ev_io_init (&wio, sin_cb, 0, EV_READ); |
|
|
1109 | ev_io_start (&wio); |
|
|
1110 | |
|
|
1111 | struct ev_timer t[10000]; |
|
|
1112 | |
|
|
1113 | #if 0 |
|
|
1114 | int i; |
|
|
1115 | for (i = 0; i < 10000; ++i) |
|
|
1116 | { |
2638 | } |
1117 | struct ev_timer *w = t + i; |
|
|
1118 | ev_watcher_init (w, ocb, i); |
|
|
1119 | ev_timer_init_abs (w, ocb, drand48 (), 0.99775533); |
|
|
1120 | ev_timer_start (w); |
|
|
1121 | if (drand48 () < 0.5) |
|
|
1122 | ev_timer_stop (w); |
|
|
1123 | } |
|
|
1124 | #endif |
|
|
1125 | |
|
|
1126 | struct ev_timer t1; |
|
|
1127 | ev_timer_init (&t1, ocb, 5, 10); |
|
|
1128 | ev_timer_start (&t1); |
|
|
1129 | |
|
|
1130 | struct ev_signal sig; |
|
|
1131 | ev_signal_init (&sig, scb, SIGQUIT); |
|
|
1132 | ev_signal_start (&sig); |
|
|
1133 | |
|
|
1134 | struct ev_check cw; |
|
|
1135 | ev_check_init (&cw, gcb); |
|
|
1136 | ev_check_start (&cw); |
|
|
1137 | |
|
|
1138 | struct ev_idle iw; |
|
|
1139 | ev_idle_init (&iw, gcb); |
|
|
1140 | ev_idle_start (&iw); |
|
|
1141 | |
|
|
1142 | ev_loop (0); |
|
|
1143 | |
|
|
1144 | return 0; |
|
|
1145 | } |
2639 | } |
1146 | |
2640 | |
|
|
2641 | #if EV_MULTIPLICITY |
|
|
2642 | #include "ev_wrap.h" |
1147 | #endif |
2643 | #endif |
1148 | |
2644 | |
|
|
2645 | #ifdef __cplusplus |
|
|
2646 | } |
|
|
2647 | #endif |
1149 | |
2648 | |
1150 | |
|
|
1151 | |
|
|