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1 | /* |
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2 | * libev event processing core, watcher management |
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3 | * |
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4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> |
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5 | * All rights reserved. |
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6 | * |
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7 | * Redistribution and use in source and binary forms, with or without modifica- |
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8 | * tion, are permitted provided that the following conditions are met: |
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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. |
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27 | * |
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28 | * Alternatively, the contents of this file may be used under the terms of |
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29 | * the GNU General Public License ("GPL") version 2 or any later version, |
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30 | * in which case the provisions of the GPL are applicable instead of |
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31 | * the above. If you wish to allow the use of your version of this file |
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32 | * only under the terms of the GPL and not to allow others to use your |
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33 | * version of this file under the BSD license, indicate your decision |
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34 | * by deleting the provisions above and replace them with the notice |
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35 | * and other provisions required by the GPL. If you do not delete the |
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36 | * provisions above, a recipient may use your version of this file under |
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37 | * either the BSD or the GPL. |
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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 |
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46 | # ifdef EV_CONFIG_H |
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47 | # include EV_CONFIG_H |
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48 | # else |
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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 | |
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132 | #endif |
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133 | |
1 | #include <math.h> |
134 | #include <math.h> |
2 | #include <stdlib.h> |
135 | #include <stdlib.h> |
3 | #include <unistd.h> |
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4 | #include <fcntl.h> |
136 | #include <fcntl.h> |
5 | #include <signal.h> |
137 | #include <stddef.h> |
6 | |
138 | |
7 | #include <stdio.h> |
139 | #include <stdio.h> |
8 | |
140 | |
9 | #include <assert.h> |
141 | #include <assert.h> |
10 | #include <errno.h> |
142 | #include <errno.h> |
11 | #include <sys/time.h> |
143 | #include <sys/types.h> |
12 | #include <time.h> |
144 | #include <time.h> |
13 | |
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 | |
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168 | #ifndef EV_USE_MONOTONIC |
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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 |
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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 */ |
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241 | |
14 | #ifdef CLOCK_MONOTONIC |
242 | #ifndef CLOCK_MONOTONIC |
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243 | # undef EV_USE_MONOTONIC |
15 | # define HAVE_MONOTONIC 1 |
244 | # define EV_USE_MONOTONIC 0 |
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245 | #endif |
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246 | |
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247 | #ifndef CLOCK_REALTIME |
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248 | # undef EV_USE_REALTIME |
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249 | # define EV_USE_REALTIME 0 |
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250 | #endif |
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251 | |
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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> |
16 | #endif |
260 | # endif |
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261 | #endif |
17 | |
262 | |
18 | #define HAVE_REALTIME 1 |
263 | #if EV_USE_INOTIFY |
19 | #define HAVE_EPOLL 1 |
264 | # include <sys/inotify.h> |
20 | #define HAVE_SELECT 1 |
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 */ |
21 | |
294 | |
22 | #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) */ |
23 | #define MAX_BLOCKTIME 60. |
296 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
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297 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
24 | |
298 | |
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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 |
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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 | |
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326 | typedef ev_watcher *W; |
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327 | typedef ev_watcher_list *WL; |
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328 | typedef ev_watcher_time *WT; |
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329 | |
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330 | #define ev_at(w) ((WT)(w))->at |
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331 | |
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332 | #if EV_USE_MONOTONIC |
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333 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
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334 | /* giving it a reasonably high chance of working on typical architetcures */ |
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335 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
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336 | #endif |
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337 | |
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338 | #ifdef _WIN32 |
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339 | # include "ev_win32.c" |
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340 | #endif |
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341 | |
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342 | /*****************************************************************************/ |
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343 | |
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344 | static void (*syserr_cb)(const char *msg); |
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345 | |
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346 | void |
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347 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
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348 | { |
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349 | syserr_cb = cb; |
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350 | } |
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351 | |
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352 | static void noinline |
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353 | syserr (const char *msg) |
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354 | { |
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355 | if (!msg) |
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356 | msg = "(libev) system error"; |
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357 | |
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358 | if (syserr_cb) |
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359 | syserr_cb (msg); |
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360 | else |
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361 | { |
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362 | perror (msg); |
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363 | abort (); |
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364 | } |
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365 | } |
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366 | |
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367 | static void * |
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368 | ev_realloc_emul (void *ptr, long size) |
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369 | { |
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370 | /* some systems, notably openbsd and darwin, fail to properly |
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371 | * implement realloc (x, 0) (as required by both ansi c-98 and |
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372 | * the single unix specification, so work around them here. |
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373 | */ |
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374 | |
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375 | if (size) |
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376 | return realloc (ptr, size); |
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377 | |
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378 | free (ptr); |
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379 | return 0; |
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380 | } |
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381 | |
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382 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
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383 | |
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384 | void |
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385 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
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386 | { |
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387 | alloc = cb; |
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388 | } |
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389 | |
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390 | inline_speed void * |
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391 | ev_realloc (void *ptr, long size) |
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392 | { |
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393 | ptr = alloc (ptr, size); |
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394 | |
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395 | if (!ptr && size) |
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396 | { |
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397 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
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398 | abort (); |
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399 | } |
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400 | |
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401 | return ptr; |
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402 | } |
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403 | |
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404 | #define ev_malloc(size) ev_realloc (0, (size)) |
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405 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
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406 | |
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407 | /*****************************************************************************/ |
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408 | |
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409 | typedef struct |
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410 | { |
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411 | WL head; |
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412 | unsigned char events; |
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413 | unsigned char reify; |
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414 | #if EV_SELECT_IS_WINSOCKET |
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415 | SOCKET handle; |
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416 | #endif |
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417 | } ANFD; |
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418 | |
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419 | typedef struct |
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420 | { |
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421 | W w; |
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422 | int events; |
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423 | } ANPENDING; |
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424 | |
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425 | #if EV_USE_INOTIFY |
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426 | typedef struct |
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427 | { |
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428 | WL head; |
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429 | } ANFS; |
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430 | #endif |
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431 | |
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432 | #if EV_MULTIPLICITY |
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433 | |
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434 | struct ev_loop |
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435 | { |
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436 | ev_tstamp ev_rt_now; |
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437 | #define ev_rt_now ((loop)->ev_rt_now) |
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438 | #define VAR(name,decl) decl; |
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439 | #include "ev_vars.h" |
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440 | #undef VAR |
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441 | }; |
25 | #include "ev.h" |
442 | #include "ev_wrap.h" |
26 | |
443 | |
27 | struct ev_watcher { |
444 | static struct ev_loop default_loop_struct; |
28 | EV_WATCHER (ev_watcher); |
445 | struct ev_loop *ev_default_loop_ptr; |
29 | }; |
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30 | |
446 | |
31 | struct ev_watcher_list { |
447 | #else |
32 | EV_WATCHER_LIST (ev_watcher_list); |
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33 | }; |
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34 | |
448 | |
35 | static ev_tstamp now, diff; /* monotonic clock */ |
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36 | ev_tstamp ev_now; |
449 | ev_tstamp ev_rt_now; |
37 | int ev_method; |
450 | #define VAR(name,decl) static decl; |
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451 | #include "ev_vars.h" |
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452 | #undef VAR |
38 | |
453 | |
39 | static int have_monotonic; /* runtime */ |
454 | static int ev_default_loop_ptr; |
40 | |
455 | |
41 | static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */ |
456 | #endif |
42 | static void (*method_modify)(int fd, int oev, int nev); |
|
|
43 | static void (*method_poll)(ev_tstamp timeout); |
|
|
44 | |
457 | |
45 | /*****************************************************************************/ |
458 | /*****************************************************************************/ |
46 | |
459 | |
47 | ev_tstamp |
460 | ev_tstamp |
48 | ev_time (void) |
461 | ev_time (void) |
49 | { |
462 | { |
50 | #if HAVE_REALTIME |
463 | #if EV_USE_REALTIME |
51 | struct timespec ts; |
464 | struct timespec ts; |
52 | clock_gettime (CLOCK_REALTIME, &ts); |
465 | clock_gettime (CLOCK_REALTIME, &ts); |
53 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
466 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
54 | #else |
467 | #else |
55 | struct timeval tv; |
468 | struct timeval tv; |
56 | gettimeofday (&tv, 0); |
469 | gettimeofday (&tv, 0); |
57 | return tv.tv_sec + tv.tv_usec * 1e-6; |
470 | return tv.tv_sec + tv.tv_usec * 1e-6; |
58 | #endif |
471 | #endif |
59 | } |
472 | } |
60 | |
473 | |
61 | static ev_tstamp |
474 | ev_tstamp inline_size |
62 | get_clock (void) |
475 | get_clock (void) |
63 | { |
476 | { |
64 | #if HAVE_MONOTONIC |
477 | #if EV_USE_MONOTONIC |
65 | if (have_monotonic) |
478 | if (expect_true (have_monotonic)) |
66 | { |
479 | { |
67 | struct timespec ts; |
480 | struct timespec ts; |
68 | clock_gettime (CLOCK_MONOTONIC, &ts); |
481 | clock_gettime (CLOCK_MONOTONIC, &ts); |
69 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
482 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
70 | } |
483 | } |
71 | #endif |
484 | #endif |
72 | |
485 | |
73 | return ev_time (); |
486 | return ev_time (); |
74 | } |
487 | } |
75 | |
488 | |
76 | #define array_needsize(base,cur,cnt,init) \ |
489 | #if EV_MULTIPLICITY |
77 | if ((cnt) > cur) \ |
490 | ev_tstamp |
78 | { \ |
491 | ev_now (EV_P) |
79 | int newcnt = cur ? cur << 1 : 16; \ |
492 | { |
80 | fprintf (stderr, "resize(" # base ") from %d to %d\n", cur, newcnt);\ |
493 | return ev_rt_now; |
81 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
494 | } |
82 | init (base + cur, newcnt - cur); \ |
495 | #endif |
83 | cur = newcnt; \ |
496 | |
|
|
497 | void |
|
|
498 | ev_sleep (ev_tstamp delay) |
|
|
499 | { |
|
|
500 | if (delay > 0.) |
84 | } |
501 | { |
|
|
502 | #if EV_USE_NANOSLEEP |
|
|
503 | struct timespec ts; |
|
|
504 | |
|
|
505 | ts.tv_sec = (time_t)delay; |
|
|
506 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
507 | |
|
|
508 | nanosleep (&ts, 0); |
|
|
509 | #elif defined(_WIN32) |
|
|
510 | Sleep ((unsigned long)(delay * 1e3)); |
|
|
511 | #else |
|
|
512 | struct timeval tv; |
|
|
513 | |
|
|
514 | tv.tv_sec = (time_t)delay; |
|
|
515 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
516 | |
|
|
517 | select (0, 0, 0, 0, &tv); |
|
|
518 | #endif |
|
|
519 | } |
|
|
520 | } |
85 | |
521 | |
86 | /*****************************************************************************/ |
522 | /*****************************************************************************/ |
87 | |
523 | |
|
|
524 | int inline_size |
|
|
525 | array_nextsize (int elem, int cur, int cnt) |
|
|
526 | { |
|
|
527 | int ncur = cur + 1; |
|
|
528 | |
|
|
529 | do |
|
|
530 | ncur <<= 1; |
|
|
531 | while (cnt > ncur); |
|
|
532 | |
|
|
533 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
|
|
534 | if (elem * ncur > 4096) |
|
|
535 | { |
|
|
536 | ncur *= elem; |
|
|
537 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
|
|
538 | ncur = ncur - sizeof (void *) * 4; |
|
|
539 | ncur /= elem; |
|
|
540 | } |
|
|
541 | |
|
|
542 | return ncur; |
|
|
543 | } |
|
|
544 | |
|
|
545 | static noinline void * |
|
|
546 | array_realloc (int elem, void *base, int *cur, int cnt) |
|
|
547 | { |
|
|
548 | *cur = array_nextsize (elem, *cur, cnt); |
|
|
549 | return ev_realloc (base, elem * *cur); |
|
|
550 | } |
|
|
551 | |
|
|
552 | #define array_needsize(type,base,cur,cnt,init) \ |
|
|
553 | if (expect_false ((cnt) > (cur))) \ |
|
|
554 | { \ |
|
|
555 | int ocur_ = (cur); \ |
|
|
556 | (base) = (type *)array_realloc \ |
|
|
557 | (sizeof (type), (base), &(cur), (cnt)); \ |
|
|
558 | init ((base) + (ocur_), (cur) - ocur_); \ |
|
|
559 | } |
|
|
560 | |
|
|
561 | #if 0 |
|
|
562 | #define array_slim(type,stem) \ |
|
|
563 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
|
|
564 | { \ |
|
|
565 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
|
|
566 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
|
|
567 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
|
|
568 | } |
|
|
569 | #endif |
|
|
570 | |
|
|
571 | #define array_free(stem, idx) \ |
|
|
572 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
|
|
573 | |
|
|
574 | /*****************************************************************************/ |
|
|
575 | |
|
|
576 | void noinline |
|
|
577 | ev_feed_event (EV_P_ void *w, int revents) |
|
|
578 | { |
|
|
579 | W w_ = (W)w; |
|
|
580 | int pri = ABSPRI (w_); |
|
|
581 | |
|
|
582 | if (expect_false (w_->pending)) |
|
|
583 | pendings [pri][w_->pending - 1].events |= revents; |
|
|
584 | else |
|
|
585 | { |
|
|
586 | w_->pending = ++pendingcnt [pri]; |
|
|
587 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
|
|
588 | pendings [pri][w_->pending - 1].w = w_; |
|
|
589 | pendings [pri][w_->pending - 1].events = revents; |
|
|
590 | } |
|
|
591 | } |
|
|
592 | |
|
|
593 | void inline_speed |
|
|
594 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
595 | { |
|
|
596 | int i; |
|
|
597 | |
|
|
598 | for (i = 0; i < eventcnt; ++i) |
|
|
599 | ev_feed_event (EV_A_ events [i], type); |
|
|
600 | } |
|
|
601 | |
|
|
602 | /*****************************************************************************/ |
|
|
603 | |
|
|
604 | void inline_size |
|
|
605 | anfds_init (ANFD *base, int count) |
|
|
606 | { |
|
|
607 | while (count--) |
|
|
608 | { |
|
|
609 | base->head = 0; |
|
|
610 | base->events = EV_NONE; |
|
|
611 | base->reify = 0; |
|
|
612 | |
|
|
613 | ++base; |
|
|
614 | } |
|
|
615 | } |
|
|
616 | |
|
|
617 | void inline_speed |
|
|
618 | fd_event (EV_P_ int fd, int revents) |
|
|
619 | { |
|
|
620 | ANFD *anfd = anfds + fd; |
|
|
621 | ev_io *w; |
|
|
622 | |
|
|
623 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
|
|
624 | { |
|
|
625 | int ev = w->events & revents; |
|
|
626 | |
|
|
627 | if (ev) |
|
|
628 | ev_feed_event (EV_A_ (W)w, ev); |
|
|
629 | } |
|
|
630 | } |
|
|
631 | |
|
|
632 | void |
|
|
633 | ev_feed_fd_event (EV_P_ int fd, int revents) |
|
|
634 | { |
|
|
635 | if (fd >= 0 && fd < anfdmax) |
|
|
636 | fd_event (EV_A_ fd, revents); |
|
|
637 | } |
|
|
638 | |
|
|
639 | void inline_size |
|
|
640 | fd_reify (EV_P) |
|
|
641 | { |
|
|
642 | int i; |
|
|
643 | |
|
|
644 | for (i = 0; i < fdchangecnt; ++i) |
|
|
645 | { |
|
|
646 | int fd = fdchanges [i]; |
|
|
647 | ANFD *anfd = anfds + fd; |
|
|
648 | ev_io *w; |
|
|
649 | |
|
|
650 | unsigned char events = 0; |
|
|
651 | |
|
|
652 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
|
|
653 | events |= (unsigned char)w->events; |
|
|
654 | |
|
|
655 | #if EV_SELECT_IS_WINSOCKET |
|
|
656 | if (events) |
|
|
657 | { |
|
|
658 | unsigned long argp; |
|
|
659 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
660 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
661 | #else |
|
|
662 | anfd->handle = _get_osfhandle (fd); |
|
|
663 | #endif |
|
|
664 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
|
|
665 | } |
|
|
666 | #endif |
|
|
667 | |
|
|
668 | { |
|
|
669 | unsigned char o_events = anfd->events; |
|
|
670 | unsigned char o_reify = anfd->reify; |
|
|
671 | |
|
|
672 | anfd->reify = 0; |
|
|
673 | anfd->events = events; |
|
|
674 | |
|
|
675 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
676 | backend_modify (EV_A_ fd, o_events, events); |
|
|
677 | } |
|
|
678 | } |
|
|
679 | |
|
|
680 | fdchangecnt = 0; |
|
|
681 | } |
|
|
682 | |
|
|
683 | void inline_size |
|
|
684 | fd_change (EV_P_ int fd, int flags) |
|
|
685 | { |
|
|
686 | unsigned char reify = anfds [fd].reify; |
|
|
687 | anfds [fd].reify |= flags; |
|
|
688 | |
|
|
689 | if (expect_true (!reify)) |
|
|
690 | { |
|
|
691 | ++fdchangecnt; |
|
|
692 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
|
|
693 | fdchanges [fdchangecnt - 1] = fd; |
|
|
694 | } |
|
|
695 | } |
|
|
696 | |
|
|
697 | void inline_speed |
|
|
698 | fd_kill (EV_P_ int fd) |
|
|
699 | { |
|
|
700 | ev_io *w; |
|
|
701 | |
|
|
702 | while ((w = (ev_io *)anfds [fd].head)) |
|
|
703 | { |
|
|
704 | ev_io_stop (EV_A_ w); |
|
|
705 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
|
|
706 | } |
|
|
707 | } |
|
|
708 | |
|
|
709 | int inline_size |
|
|
710 | fd_valid (int fd) |
|
|
711 | { |
|
|
712 | #ifdef _WIN32 |
|
|
713 | return _get_osfhandle (fd) != -1; |
|
|
714 | #else |
|
|
715 | return fcntl (fd, F_GETFD) != -1; |
|
|
716 | #endif |
|
|
717 | } |
|
|
718 | |
|
|
719 | /* called on EBADF to verify fds */ |
|
|
720 | static void noinline |
|
|
721 | fd_ebadf (EV_P) |
|
|
722 | { |
|
|
723 | int fd; |
|
|
724 | |
|
|
725 | for (fd = 0; fd < anfdmax; ++fd) |
|
|
726 | if (anfds [fd].events) |
|
|
727 | if (!fd_valid (fd) == -1 && errno == EBADF) |
|
|
728 | fd_kill (EV_A_ fd); |
|
|
729 | } |
|
|
730 | |
|
|
731 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
|
|
732 | static void noinline |
|
|
733 | fd_enomem (EV_P) |
|
|
734 | { |
|
|
735 | int fd; |
|
|
736 | |
|
|
737 | for (fd = anfdmax; fd--; ) |
|
|
738 | if (anfds [fd].events) |
|
|
739 | { |
|
|
740 | fd_kill (EV_A_ fd); |
|
|
741 | return; |
|
|
742 | } |
|
|
743 | } |
|
|
744 | |
|
|
745 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
|
|
746 | static void noinline |
|
|
747 | fd_rearm_all (EV_P) |
|
|
748 | { |
|
|
749 | int fd; |
|
|
750 | |
|
|
751 | for (fd = 0; fd < anfdmax; ++fd) |
|
|
752 | if (anfds [fd].events) |
|
|
753 | { |
|
|
754 | anfds [fd].events = 0; |
|
|
755 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
|
|
756 | } |
|
|
757 | } |
|
|
758 | |
|
|
759 | /*****************************************************************************/ |
|
|
760 | |
|
|
761 | /* towards the root */ |
|
|
762 | void inline_speed |
|
|
763 | upheap (WT *heap, int k) |
|
|
764 | { |
|
|
765 | WT w = heap [k]; |
|
|
766 | |
|
|
767 | for (;;) |
|
|
768 | { |
|
|
769 | int p = k >> 1; |
|
|
770 | |
|
|
771 | /* maybe we could use a dummy element at heap [0]? */ |
|
|
772 | if (!p || heap [p]->at <= w->at) |
|
|
773 | break; |
|
|
774 | |
|
|
775 | heap [k] = heap [p]; |
|
|
776 | ((W)heap [k])->active = k; |
|
|
777 | k = p; |
|
|
778 | } |
|
|
779 | |
|
|
780 | heap [k] = w; |
|
|
781 | ((W)heap [k])->active = k; |
|
|
782 | } |
|
|
783 | |
|
|
784 | /* away from the root */ |
|
|
785 | void inline_speed |
|
|
786 | downheap (WT *heap, int N, int k) |
|
|
787 | { |
|
|
788 | WT w = heap [k]; |
|
|
789 | |
|
|
790 | for (;;) |
|
|
791 | { |
|
|
792 | int c = k << 1; |
|
|
793 | |
|
|
794 | if (c > N) |
|
|
795 | break; |
|
|
796 | |
|
|
797 | c += c < N && heap [c]->at > heap [c + 1]->at |
|
|
798 | ? 1 : 0; |
|
|
799 | |
|
|
800 | if (w->at <= heap [c]->at) |
|
|
801 | break; |
|
|
802 | |
|
|
803 | heap [k] = heap [c]; |
|
|
804 | ((W)heap [k])->active = k; |
|
|
805 | |
|
|
806 | k = c; |
|
|
807 | } |
|
|
808 | |
|
|
809 | heap [k] = w; |
|
|
810 | ((W)heap [k])->active = k; |
|
|
811 | } |
|
|
812 | |
|
|
813 | void inline_size |
|
|
814 | adjustheap (WT *heap, int N, int k) |
|
|
815 | { |
|
|
816 | upheap (heap, k); |
|
|
817 | downheap (heap, N, k); |
|
|
818 | } |
|
|
819 | |
|
|
820 | /*****************************************************************************/ |
|
|
821 | |
88 | typedef struct |
822 | typedef struct |
89 | { |
823 | { |
90 | struct ev_io *head; |
824 | WL head; |
91 | unsigned char wev, rev; /* want, received event set */ |
825 | EV_ATOMIC_T gotsig; |
92 | } ANFD; |
|
|
93 | |
|
|
94 | static ANFD *anfds; |
|
|
95 | static int anfdmax; |
|
|
96 | |
|
|
97 | static int *fdchanges; |
|
|
98 | static int fdchangemax, fdchangecnt; |
|
|
99 | |
|
|
100 | static void |
|
|
101 | anfds_init (ANFD *base, int count) |
|
|
102 | { |
|
|
103 | while (count--) |
|
|
104 | { |
|
|
105 | base->head = 0; |
|
|
106 | base->wev = base->rev = EV_NONE; |
|
|
107 | ++base; |
|
|
108 | } |
|
|
109 | } |
|
|
110 | |
|
|
111 | typedef struct |
|
|
112 | { |
|
|
113 | struct ev_watcher *w; |
|
|
114 | int events; |
|
|
115 | } ANPENDING; |
|
|
116 | |
|
|
117 | static ANPENDING *pendings; |
|
|
118 | static int pendingmax, pendingcnt; |
|
|
119 | |
|
|
120 | static void |
|
|
121 | event (struct ev_watcher *w, int events) |
|
|
122 | { |
|
|
123 | w->pending = ++pendingcnt; |
|
|
124 | array_needsize (pendings, pendingmax, pendingcnt, ); |
|
|
125 | pendings [pendingcnt - 1].w = w; |
|
|
126 | pendings [pendingcnt - 1].events = events; |
|
|
127 | } |
|
|
128 | |
|
|
129 | static void |
|
|
130 | fd_event (int fd, int events) |
|
|
131 | { |
|
|
132 | ANFD *anfd = anfds + fd; |
|
|
133 | struct ev_io *w; |
|
|
134 | |
|
|
135 | for (w = anfd->head; w; w = w->next) |
|
|
136 | { |
|
|
137 | int ev = w->events & events; |
|
|
138 | |
|
|
139 | if (ev) |
|
|
140 | event ((struct ev_watcher *)w, ev); |
|
|
141 | } |
|
|
142 | } |
|
|
143 | |
|
|
144 | /*****************************************************************************/ |
|
|
145 | |
|
|
146 | static struct ev_timer **atimers; |
|
|
147 | static int atimermax, atimercnt; |
|
|
148 | |
|
|
149 | static struct ev_timer **rtimers; |
|
|
150 | static int rtimermax, rtimercnt; |
|
|
151 | |
|
|
152 | static void |
|
|
153 | upheap (struct ev_timer **timers, int k) |
|
|
154 | { |
|
|
155 | struct ev_timer *w = timers [k]; |
|
|
156 | |
|
|
157 | while (k && timers [k >> 1]->at > w->at) |
|
|
158 | { |
|
|
159 | timers [k] = timers [k >> 1]; |
|
|
160 | timers [k]->active = k + 1; |
|
|
161 | k >>= 1; |
|
|
162 | } |
|
|
163 | |
|
|
164 | timers [k] = w; |
|
|
165 | timers [k]->active = k + 1; |
|
|
166 | |
|
|
167 | } |
|
|
168 | |
|
|
169 | static void |
|
|
170 | downheap (struct ev_timer **timers, int N, int k) |
|
|
171 | { |
|
|
172 | struct ev_timer *w = timers [k]; |
|
|
173 | |
|
|
174 | while (k < (N >> 1)) |
|
|
175 | { |
|
|
176 | int j = k << 1; |
|
|
177 | |
|
|
178 | if (j + 1 < N && timers [j]->at > timers [j + 1]->at) |
|
|
179 | ++j; |
|
|
180 | |
|
|
181 | if (w->at <= timers [j]->at) |
|
|
182 | break; |
|
|
183 | |
|
|
184 | timers [k] = timers [j]; |
|
|
185 | timers [k]->active = k + 1; |
|
|
186 | k = j; |
|
|
187 | } |
|
|
188 | |
|
|
189 | timers [k] = w; |
|
|
190 | timers [k]->active = k + 1; |
|
|
191 | } |
|
|
192 | |
|
|
193 | /*****************************************************************************/ |
|
|
194 | |
|
|
195 | typedef struct |
|
|
196 | { |
|
|
197 | struct ev_signal *head; |
|
|
198 | sig_atomic_t gotsig; |
|
|
199 | } ANSIG; |
826 | } ANSIG; |
200 | |
827 | |
201 | static ANSIG *signals; |
828 | static ANSIG *signals; |
202 | static int signalmax; |
829 | static int signalmax; |
203 | |
830 | |
204 | static int sigpipe [2]; |
831 | static EV_ATOMIC_T gotsig; |
205 | static sig_atomic_t gotsig; |
|
|
206 | static struct ev_io sigev; |
|
|
207 | |
832 | |
208 | static void |
833 | void inline_size |
209 | signals_init (ANSIG *base, int count) |
834 | signals_init (ANSIG *base, int count) |
210 | { |
835 | { |
211 | while (count--) |
836 | while (count--) |
212 | { |
837 | { |
213 | base->head = 0; |
838 | base->head = 0; |
214 | base->gotsig = 0; |
839 | base->gotsig = 0; |
|
|
840 | |
215 | ++base; |
841 | ++base; |
216 | } |
842 | } |
217 | } |
843 | } |
218 | |
844 | |
|
|
845 | /*****************************************************************************/ |
|
|
846 | |
|
|
847 | void inline_speed |
|
|
848 | fd_intern (int fd) |
|
|
849 | { |
|
|
850 | #ifdef _WIN32 |
|
|
851 | int arg = 1; |
|
|
852 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
853 | #else |
|
|
854 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
855 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
856 | #endif |
|
|
857 | } |
|
|
858 | |
|
|
859 | static void noinline |
|
|
860 | evpipe_init (EV_P) |
|
|
861 | { |
|
|
862 | if (!ev_is_active (&pipeev)) |
|
|
863 | { |
|
|
864 | #if EV_USE_EVENTFD |
|
|
865 | if ((evfd = eventfd (0, 0)) >= 0) |
|
|
866 | { |
|
|
867 | evpipe [0] = -1; |
|
|
868 | fd_intern (evfd); |
|
|
869 | ev_io_set (&pipeev, evfd, EV_READ); |
|
|
870 | } |
|
|
871 | else |
|
|
872 | #endif |
|
|
873 | { |
|
|
874 | while (pipe (evpipe)) |
|
|
875 | syserr ("(libev) error creating signal/async pipe"); |
|
|
876 | |
|
|
877 | fd_intern (evpipe [0]); |
|
|
878 | fd_intern (evpipe [1]); |
|
|
879 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
|
|
880 | } |
|
|
881 | |
|
|
882 | ev_io_start (EV_A_ &pipeev); |
|
|
883 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
884 | } |
|
|
885 | } |
|
|
886 | |
|
|
887 | void inline_size |
|
|
888 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
889 | { |
|
|
890 | if (!*flag) |
|
|
891 | { |
|
|
892 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
893 | |
|
|
894 | *flag = 1; |
|
|
895 | |
|
|
896 | #if EV_USE_EVENTFD |
|
|
897 | if (evfd >= 0) |
|
|
898 | { |
|
|
899 | uint64_t counter = 1; |
|
|
900 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
901 | } |
|
|
902 | else |
|
|
903 | #endif |
|
|
904 | write (evpipe [1], &old_errno, 1); |
|
|
905 | |
|
|
906 | errno = old_errno; |
|
|
907 | } |
|
|
908 | } |
|
|
909 | |
219 | static void |
910 | static void |
|
|
911 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
912 | { |
|
|
913 | #if EV_USE_EVENTFD |
|
|
914 | if (evfd >= 0) |
|
|
915 | { |
|
|
916 | uint64_t counter = 1; |
|
|
917 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
918 | } |
|
|
919 | else |
|
|
920 | #endif |
|
|
921 | { |
|
|
922 | char dummy; |
|
|
923 | read (evpipe [0], &dummy, 1); |
|
|
924 | } |
|
|
925 | |
|
|
926 | if (gotsig && ev_is_default_loop (EV_A)) |
|
|
927 | { |
|
|
928 | int signum; |
|
|
929 | gotsig = 0; |
|
|
930 | |
|
|
931 | for (signum = signalmax; signum--; ) |
|
|
932 | if (signals [signum].gotsig) |
|
|
933 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
934 | } |
|
|
935 | |
|
|
936 | #if EV_ASYNC_ENABLE |
|
|
937 | if (gotasync) |
|
|
938 | { |
|
|
939 | int i; |
|
|
940 | gotasync = 0; |
|
|
941 | |
|
|
942 | for (i = asynccnt; i--; ) |
|
|
943 | if (asyncs [i]->sent) |
|
|
944 | { |
|
|
945 | asyncs [i]->sent = 0; |
|
|
946 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
947 | } |
|
|
948 | } |
|
|
949 | #endif |
|
|
950 | } |
|
|
951 | |
|
|
952 | /*****************************************************************************/ |
|
|
953 | |
|
|
954 | static void |
220 | sighandler (int signum) |
955 | ev_sighandler (int signum) |
221 | { |
956 | { |
|
|
957 | #if EV_MULTIPLICITY |
|
|
958 | struct ev_loop *loop = &default_loop_struct; |
|
|
959 | #endif |
|
|
960 | |
|
|
961 | #if _WIN32 |
|
|
962 | signal (signum, ev_sighandler); |
|
|
963 | #endif |
|
|
964 | |
222 | signals [signum - 1].gotsig = 1; |
965 | signals [signum - 1].gotsig = 1; |
|
|
966 | evpipe_write (EV_A_ &gotsig); |
|
|
967 | } |
223 | |
968 | |
224 | if (!gotsig) |
969 | void noinline |
|
|
970 | ev_feed_signal_event (EV_P_ int signum) |
|
|
971 | { |
|
|
972 | WL w; |
|
|
973 | |
|
|
974 | #if EV_MULTIPLICITY |
|
|
975 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
976 | #endif |
|
|
977 | |
|
|
978 | --signum; |
|
|
979 | |
|
|
980 | if (signum < 0 || signum >= signalmax) |
|
|
981 | return; |
|
|
982 | |
|
|
983 | signals [signum].gotsig = 0; |
|
|
984 | |
|
|
985 | for (w = signals [signum].head; w; w = w->next) |
|
|
986 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
987 | } |
|
|
988 | |
|
|
989 | /*****************************************************************************/ |
|
|
990 | |
|
|
991 | static WL childs [EV_PID_HASHSIZE]; |
|
|
992 | |
|
|
993 | #ifndef _WIN32 |
|
|
994 | |
|
|
995 | static ev_signal childev; |
|
|
996 | |
|
|
997 | #ifndef WIFCONTINUED |
|
|
998 | # define WIFCONTINUED(status) 0 |
|
|
999 | #endif |
|
|
1000 | |
|
|
1001 | void inline_speed |
|
|
1002 | child_reap (EV_P_ int chain, int pid, int status) |
|
|
1003 | { |
|
|
1004 | ev_child *w; |
|
|
1005 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
|
|
1006 | |
|
|
1007 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1008 | { |
|
|
1009 | if ((w->pid == pid || !w->pid) |
|
|
1010 | && (!traced || (w->flags & 1))) |
|
|
1011 | { |
|
|
1012 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
|
|
1013 | w->rpid = pid; |
|
|
1014 | w->rstatus = status; |
|
|
1015 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
1016 | } |
|
|
1017 | } |
|
|
1018 | } |
|
|
1019 | |
|
|
1020 | #ifndef WCONTINUED |
|
|
1021 | # define WCONTINUED 0 |
|
|
1022 | #endif |
|
|
1023 | |
|
|
1024 | static void |
|
|
1025 | childcb (EV_P_ ev_signal *sw, int revents) |
|
|
1026 | { |
|
|
1027 | int pid, status; |
|
|
1028 | |
|
|
1029 | /* some systems define WCONTINUED but then fail to support it (linux 2.4) */ |
|
|
1030 | if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
|
|
1031 | if (!WCONTINUED |
|
|
1032 | || errno != EINVAL |
|
|
1033 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
|
|
1034 | return; |
|
|
1035 | |
|
|
1036 | /* make sure we are called again until all children have been reaped */ |
|
|
1037 | /* we need to do it this way so that the callback gets called before we continue */ |
|
|
1038 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
|
|
1039 | |
|
|
1040 | child_reap (EV_A_ pid, pid, status); |
|
|
1041 | if (EV_PID_HASHSIZE > 1) |
|
|
1042 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
|
|
1043 | } |
|
|
1044 | |
|
|
1045 | #endif |
|
|
1046 | |
|
|
1047 | /*****************************************************************************/ |
|
|
1048 | |
|
|
1049 | #if EV_USE_PORT |
|
|
1050 | # include "ev_port.c" |
|
|
1051 | #endif |
|
|
1052 | #if EV_USE_KQUEUE |
|
|
1053 | # include "ev_kqueue.c" |
|
|
1054 | #endif |
|
|
1055 | #if EV_USE_EPOLL |
|
|
1056 | # include "ev_epoll.c" |
|
|
1057 | #endif |
|
|
1058 | #if EV_USE_POLL |
|
|
1059 | # include "ev_poll.c" |
|
|
1060 | #endif |
|
|
1061 | #if EV_USE_SELECT |
|
|
1062 | # include "ev_select.c" |
|
|
1063 | #endif |
|
|
1064 | |
|
|
1065 | int |
|
|
1066 | ev_version_major (void) |
|
|
1067 | { |
|
|
1068 | return EV_VERSION_MAJOR; |
|
|
1069 | } |
|
|
1070 | |
|
|
1071 | int |
|
|
1072 | ev_version_minor (void) |
|
|
1073 | { |
|
|
1074 | return EV_VERSION_MINOR; |
|
|
1075 | } |
|
|
1076 | |
|
|
1077 | /* return true if we are running with elevated privileges and should ignore env variables */ |
|
|
1078 | int inline_size |
|
|
1079 | enable_secure (void) |
|
|
1080 | { |
|
|
1081 | #ifdef _WIN32 |
|
|
1082 | return 0; |
|
|
1083 | #else |
|
|
1084 | return getuid () != geteuid () |
|
|
1085 | || getgid () != getegid (); |
|
|
1086 | #endif |
|
|
1087 | } |
|
|
1088 | |
|
|
1089 | unsigned int |
|
|
1090 | ev_supported_backends (void) |
|
|
1091 | { |
|
|
1092 | unsigned int flags = 0; |
|
|
1093 | |
|
|
1094 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
|
|
1095 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
|
|
1096 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
1097 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
1098 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
|
|
1099 | |
|
|
1100 | return flags; |
|
|
1101 | } |
|
|
1102 | |
|
|
1103 | unsigned int |
|
|
1104 | ev_recommended_backends (void) |
|
|
1105 | { |
|
|
1106 | unsigned int flags = ev_supported_backends (); |
|
|
1107 | |
|
|
1108 | #ifndef __NetBSD__ |
|
|
1109 | /* kqueue is borked on everything but netbsd apparently */ |
|
|
1110 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
|
|
1111 | flags &= ~EVBACKEND_KQUEUE; |
|
|
1112 | #endif |
|
|
1113 | #ifdef __APPLE__ |
|
|
1114 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
|
|
1115 | flags &= ~EVBACKEND_POLL; |
|
|
1116 | #endif |
|
|
1117 | |
|
|
1118 | return flags; |
|
|
1119 | } |
|
|
1120 | |
|
|
1121 | unsigned int |
|
|
1122 | ev_embeddable_backends (void) |
|
|
1123 | { |
|
|
1124 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
|
|
1125 | |
|
|
1126 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1127 | /* please fix it and tell me how to detect the fix */ |
|
|
1128 | flags &= ~EVBACKEND_EPOLL; |
|
|
1129 | |
|
|
1130 | return flags; |
|
|
1131 | } |
|
|
1132 | |
|
|
1133 | unsigned int |
|
|
1134 | ev_backend (EV_P) |
|
|
1135 | { |
|
|
1136 | return backend; |
|
|
1137 | } |
|
|
1138 | |
|
|
1139 | unsigned int |
|
|
1140 | ev_loop_count (EV_P) |
|
|
1141 | { |
|
|
1142 | return loop_count; |
|
|
1143 | } |
|
|
1144 | |
|
|
1145 | void |
|
|
1146 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1147 | { |
|
|
1148 | io_blocktime = interval; |
|
|
1149 | } |
|
|
1150 | |
|
|
1151 | void |
|
|
1152 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1153 | { |
|
|
1154 | timeout_blocktime = interval; |
|
|
1155 | } |
|
|
1156 | |
|
|
1157 | static void noinline |
|
|
1158 | loop_init (EV_P_ unsigned int flags) |
|
|
1159 | { |
|
|
1160 | if (!backend) |
|
|
1161 | { |
|
|
1162 | #if EV_USE_MONOTONIC |
225 | { |
1163 | { |
|
|
1164 | struct timespec ts; |
|
|
1165 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
|
|
1166 | have_monotonic = 1; |
|
|
1167 | } |
|
|
1168 | #endif |
|
|
1169 | |
|
|
1170 | ev_rt_now = ev_time (); |
|
|
1171 | mn_now = get_clock (); |
|
|
1172 | now_floor = mn_now; |
|
|
1173 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1174 | |
|
|
1175 | io_blocktime = 0.; |
|
|
1176 | timeout_blocktime = 0.; |
|
|
1177 | backend = 0; |
|
|
1178 | backend_fd = -1; |
|
|
1179 | gotasync = 0; |
|
|
1180 | #if EV_USE_INOTIFY |
|
|
1181 | fs_fd = -2; |
|
|
1182 | #endif |
|
|
1183 | |
|
|
1184 | /* pid check not overridable via env */ |
|
|
1185 | #ifndef _WIN32 |
|
|
1186 | if (flags & EVFLAG_FORKCHECK) |
|
|
1187 | curpid = getpid (); |
|
|
1188 | #endif |
|
|
1189 | |
|
|
1190 | if (!(flags & EVFLAG_NOENV) |
|
|
1191 | && !enable_secure () |
|
|
1192 | && getenv ("LIBEV_FLAGS")) |
|
|
1193 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1194 | |
|
|
1195 | if (!(flags & 0x0000ffffU)) |
|
|
1196 | flags |= ev_recommended_backends (); |
|
|
1197 | |
|
|
1198 | #if EV_USE_PORT |
|
|
1199 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
|
|
1200 | #endif |
|
|
1201 | #if EV_USE_KQUEUE |
|
|
1202 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
|
|
1203 | #endif |
|
|
1204 | #if EV_USE_EPOLL |
|
|
1205 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
|
|
1206 | #endif |
|
|
1207 | #if EV_USE_POLL |
|
|
1208 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
|
|
1209 | #endif |
|
|
1210 | #if EV_USE_SELECT |
|
|
1211 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
|
|
1212 | #endif |
|
|
1213 | |
|
|
1214 | ev_init (&pipeev, pipecb); |
|
|
1215 | ev_set_priority (&pipeev, EV_MAXPRI); |
|
|
1216 | } |
|
|
1217 | } |
|
|
1218 | |
|
|
1219 | static void noinline |
|
|
1220 | loop_destroy (EV_P) |
|
|
1221 | { |
|
|
1222 | int i; |
|
|
1223 | |
|
|
1224 | if (ev_is_active (&pipeev)) |
|
|
1225 | { |
|
|
1226 | ev_ref (EV_A); /* signal watcher */ |
|
|
1227 | ev_io_stop (EV_A_ &pipeev); |
|
|
1228 | |
|
|
1229 | #if EV_USE_EVENTFD |
|
|
1230 | if (evfd >= 0) |
|
|
1231 | close (evfd); |
|
|
1232 | #endif |
|
|
1233 | |
|
|
1234 | if (evpipe [0] >= 0) |
|
|
1235 | { |
|
|
1236 | close (evpipe [0]); |
|
|
1237 | close (evpipe [1]); |
|
|
1238 | } |
|
|
1239 | } |
|
|
1240 | |
|
|
1241 | #if EV_USE_INOTIFY |
|
|
1242 | if (fs_fd >= 0) |
|
|
1243 | close (fs_fd); |
|
|
1244 | #endif |
|
|
1245 | |
|
|
1246 | if (backend_fd >= 0) |
|
|
1247 | close (backend_fd); |
|
|
1248 | |
|
|
1249 | #if EV_USE_PORT |
|
|
1250 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
|
|
1251 | #endif |
|
|
1252 | #if EV_USE_KQUEUE |
|
|
1253 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
|
|
1254 | #endif |
|
|
1255 | #if EV_USE_EPOLL |
|
|
1256 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
|
|
1257 | #endif |
|
|
1258 | #if EV_USE_POLL |
|
|
1259 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
|
|
1260 | #endif |
|
|
1261 | #if EV_USE_SELECT |
|
|
1262 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
|
|
1263 | #endif |
|
|
1264 | |
|
|
1265 | for (i = NUMPRI; i--; ) |
|
|
1266 | { |
|
|
1267 | array_free (pending, [i]); |
|
|
1268 | #if EV_IDLE_ENABLE |
|
|
1269 | array_free (idle, [i]); |
|
|
1270 | #endif |
|
|
1271 | } |
|
|
1272 | |
|
|
1273 | ev_free (anfds); anfdmax = 0; |
|
|
1274 | |
|
|
1275 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1276 | array_free (fdchange, EMPTY); |
|
|
1277 | array_free (timer, EMPTY); |
|
|
1278 | #if EV_PERIODIC_ENABLE |
|
|
1279 | array_free (periodic, EMPTY); |
|
|
1280 | #endif |
|
|
1281 | #if EV_FORK_ENABLE |
|
|
1282 | array_free (fork, EMPTY); |
|
|
1283 | #endif |
|
|
1284 | array_free (prepare, EMPTY); |
|
|
1285 | array_free (check, EMPTY); |
|
|
1286 | #if EV_ASYNC_ENABLE |
|
|
1287 | array_free (async, EMPTY); |
|
|
1288 | #endif |
|
|
1289 | |
|
|
1290 | backend = 0; |
|
|
1291 | } |
|
|
1292 | |
|
|
1293 | #if EV_USE_INOTIFY |
|
|
1294 | void inline_size infy_fork (EV_P); |
|
|
1295 | #endif |
|
|
1296 | |
|
|
1297 | void inline_size |
|
|
1298 | loop_fork (EV_P) |
|
|
1299 | { |
|
|
1300 | #if EV_USE_PORT |
|
|
1301 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
|
|
1302 | #endif |
|
|
1303 | #if EV_USE_KQUEUE |
|
|
1304 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
|
|
1305 | #endif |
|
|
1306 | #if EV_USE_EPOLL |
|
|
1307 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
|
|
1308 | #endif |
|
|
1309 | #if EV_USE_INOTIFY |
|
|
1310 | infy_fork (EV_A); |
|
|
1311 | #endif |
|
|
1312 | |
|
|
1313 | if (ev_is_active (&pipeev)) |
|
|
1314 | { |
|
|
1315 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1316 | /* while we modify the fd vars */ |
226 | gotsig = 1; |
1317 | gotsig = 1; |
227 | write (sigpipe [1], &gotsig, 1); |
1318 | #if EV_ASYNC_ENABLE |
|
|
1319 | gotasync = 1; |
|
|
1320 | #endif |
|
|
1321 | |
|
|
1322 | ev_ref (EV_A); |
|
|
1323 | ev_io_stop (EV_A_ &pipeev); |
|
|
1324 | |
|
|
1325 | #if EV_USE_EVENTFD |
|
|
1326 | if (evfd >= 0) |
|
|
1327 | close (evfd); |
|
|
1328 | #endif |
|
|
1329 | |
|
|
1330 | if (evpipe [0] >= 0) |
|
|
1331 | { |
|
|
1332 | close (evpipe [0]); |
|
|
1333 | close (evpipe [1]); |
|
|
1334 | } |
|
|
1335 | |
|
|
1336 | evpipe_init (EV_A); |
|
|
1337 | /* now iterate over everything, in case we missed something */ |
|
|
1338 | pipecb (EV_A_ &pipeev, EV_READ); |
|
|
1339 | } |
|
|
1340 | |
|
|
1341 | postfork = 0; |
|
|
1342 | } |
|
|
1343 | |
|
|
1344 | #if EV_MULTIPLICITY |
|
|
1345 | struct ev_loop * |
|
|
1346 | ev_loop_new (unsigned int flags) |
|
|
1347 | { |
|
|
1348 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
|
|
1349 | |
|
|
1350 | memset (loop, 0, sizeof (struct ev_loop)); |
|
|
1351 | |
|
|
1352 | loop_init (EV_A_ flags); |
|
|
1353 | |
|
|
1354 | if (ev_backend (EV_A)) |
|
|
1355 | return loop; |
|
|
1356 | |
|
|
1357 | return 0; |
|
|
1358 | } |
|
|
1359 | |
|
|
1360 | void |
|
|
1361 | ev_loop_destroy (EV_P) |
|
|
1362 | { |
|
|
1363 | loop_destroy (EV_A); |
|
|
1364 | ev_free (loop); |
|
|
1365 | } |
|
|
1366 | |
|
|
1367 | void |
|
|
1368 | ev_loop_fork (EV_P) |
|
|
1369 | { |
|
|
1370 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1371 | } |
|
|
1372 | |
|
|
1373 | #endif |
|
|
1374 | |
|
|
1375 | #if EV_MULTIPLICITY |
|
|
1376 | struct ev_loop * |
|
|
1377 | ev_default_loop_init (unsigned int flags) |
|
|
1378 | #else |
|
|
1379 | int |
|
|
1380 | ev_default_loop (unsigned int flags) |
|
|
1381 | #endif |
|
|
1382 | { |
|
|
1383 | if (!ev_default_loop_ptr) |
228 | } |
1384 | { |
229 | } |
1385 | #if EV_MULTIPLICITY |
|
|
1386 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
|
|
1387 | #else |
|
|
1388 | ev_default_loop_ptr = 1; |
|
|
1389 | #endif |
230 | |
1390 | |
231 | static void |
1391 | loop_init (EV_A_ flags); |
232 | sigcb (struct ev_io *iow, int revents) |
1392 | |
|
|
1393 | if (ev_backend (EV_A)) |
|
|
1394 | { |
|
|
1395 | #ifndef _WIN32 |
|
|
1396 | ev_signal_init (&childev, childcb, SIGCHLD); |
|
|
1397 | ev_set_priority (&childev, EV_MAXPRI); |
|
|
1398 | ev_signal_start (EV_A_ &childev); |
|
|
1399 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
|
|
1400 | #endif |
|
|
1401 | } |
|
|
1402 | else |
|
|
1403 | ev_default_loop_ptr = 0; |
|
|
1404 | } |
|
|
1405 | |
|
|
1406 | return ev_default_loop_ptr; |
|
|
1407 | } |
|
|
1408 | |
|
|
1409 | void |
|
|
1410 | ev_default_destroy (void) |
233 | { |
1411 | { |
234 | struct ev_signal *w; |
1412 | #if EV_MULTIPLICITY |
|
|
1413 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1414 | #endif |
|
|
1415 | |
|
|
1416 | #ifndef _WIN32 |
|
|
1417 | ev_ref (EV_A); /* child watcher */ |
|
|
1418 | ev_signal_stop (EV_A_ &childev); |
|
|
1419 | #endif |
|
|
1420 | |
|
|
1421 | loop_destroy (EV_A); |
|
|
1422 | } |
|
|
1423 | |
|
|
1424 | void |
|
|
1425 | ev_default_fork (void) |
|
|
1426 | { |
|
|
1427 | #if EV_MULTIPLICITY |
|
|
1428 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1429 | #endif |
|
|
1430 | |
|
|
1431 | if (backend) |
|
|
1432 | postfork = 1; /* must be in line with ev_loop_fork */ |
|
|
1433 | } |
|
|
1434 | |
|
|
1435 | /*****************************************************************************/ |
|
|
1436 | |
|
|
1437 | void |
|
|
1438 | ev_invoke (EV_P_ void *w, int revents) |
|
|
1439 | { |
|
|
1440 | EV_CB_INVOKE ((W)w, revents); |
|
|
1441 | } |
|
|
1442 | |
|
|
1443 | void inline_speed |
|
|
1444 | call_pending (EV_P) |
|
|
1445 | { |
235 | int sig; |
1446 | int pri; |
236 | |
1447 | |
237 | gotsig = 0; |
1448 | for (pri = NUMPRI; pri--; ) |
238 | read (sigpipe [0], &revents, 1); |
1449 | while (pendingcnt [pri]) |
239 | |
|
|
240 | for (sig = signalmax; sig--; ) |
|
|
241 | if (signals [sig].gotsig) |
|
|
242 | { |
1450 | { |
243 | signals [sig].gotsig = 0; |
1451 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
244 | |
1452 | |
245 | for (w = signals [sig].head; w; w = w->next) |
1453 | if (expect_true (p->w)) |
246 | event ((struct ev_watcher *)w, EV_SIGNAL); |
1454 | { |
|
|
1455 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1456 | |
|
|
1457 | p->w->pending = 0; |
|
|
1458 | EV_CB_INVOKE (p->w, p->events); |
|
|
1459 | } |
247 | } |
1460 | } |
248 | } |
1461 | } |
249 | |
1462 | |
250 | static void |
1463 | void inline_size |
251 | siginit (void) |
1464 | timers_reify (EV_P) |
252 | { |
1465 | { |
253 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
|
|
254 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
|
|
255 | |
|
|
256 | /* rather than sort out wether we really need nb, set it */ |
|
|
257 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
|
|
258 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
|
|
259 | |
|
|
260 | evio_set (&sigev, sigpipe [0], EV_READ); |
|
|
261 | evio_start (&sigev); |
|
|
262 | } |
|
|
263 | |
|
|
264 | /*****************************************************************************/ |
|
|
265 | |
|
|
266 | #if HAVE_EPOLL |
|
|
267 | # include "ev_epoll.c" |
|
|
268 | #endif |
|
|
269 | #if HAVE_SELECT |
|
|
270 | # include "ev_select.c" |
|
|
271 | #endif |
|
|
272 | |
|
|
273 | int ev_init (int flags) |
|
|
274 | { |
|
|
275 | #if HAVE_MONOTONIC |
|
|
276 | { |
|
|
277 | struct timespec ts; |
|
|
278 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
|
|
279 | have_monotonic = 1; |
|
|
280 | } |
|
|
281 | #endif |
|
|
282 | |
|
|
283 | ev_now = ev_time (); |
|
|
284 | now = get_clock (); |
|
|
285 | diff = ev_now - now; |
|
|
286 | |
|
|
287 | if (pipe (sigpipe)) |
|
|
288 | return 0; |
|
|
289 | |
|
|
290 | ev_method = EVMETHOD_NONE; |
|
|
291 | #if HAVE_EPOLL |
|
|
292 | if (ev_method == EVMETHOD_NONE) epoll_init (flags); |
|
|
293 | #endif |
|
|
294 | #if HAVE_SELECT |
|
|
295 | if (ev_method == EVMETHOD_NONE) select_init (flags); |
|
|
296 | #endif |
|
|
297 | |
|
|
298 | if (ev_method) |
|
|
299 | { |
|
|
300 | evw_init (&sigev, sigcb, 0); |
|
|
301 | siginit (); |
|
|
302 | } |
|
|
303 | |
|
|
304 | return ev_method; |
|
|
305 | } |
|
|
306 | |
|
|
307 | /*****************************************************************************/ |
|
|
308 | |
|
|
309 | void ev_prefork (void) |
|
|
310 | { |
|
|
311 | } |
|
|
312 | |
|
|
313 | void ev_postfork_parent (void) |
|
|
314 | { |
|
|
315 | } |
|
|
316 | |
|
|
317 | void ev_postfork_child (void) |
|
|
318 | { |
|
|
319 | #if HAVE_EPOLL |
|
|
320 | if (ev_method == EVMETHOD_EPOLL) |
|
|
321 | epoll_postfork_child (); |
|
|
322 | #endif |
|
|
323 | |
|
|
324 | evio_stop (&sigev); |
|
|
325 | close (sigpipe [0]); |
|
|
326 | close (sigpipe [1]); |
|
|
327 | pipe (sigpipe); |
|
|
328 | siginit (); |
|
|
329 | } |
|
|
330 | |
|
|
331 | /*****************************************************************************/ |
|
|
332 | |
|
|
333 | static ev_hook hooks [EVHOOK_NUM]; |
|
|
334 | |
|
|
335 | void |
|
|
336 | ev_hook_register (int type, ev_hook hook) |
|
|
337 | { |
|
|
338 | hooks [type] = hook; |
|
|
339 | } |
|
|
340 | |
|
|
341 | void |
|
|
342 | ev_hook_unregister (int type, ev_hook hook) |
|
|
343 | { |
|
|
344 | hooks [type] = 0; |
|
|
345 | } |
|
|
346 | |
|
|
347 | static void |
|
|
348 | hook_call (int type) |
|
|
349 | { |
|
|
350 | if (hooks [type]) |
|
|
351 | hooks [type] (); |
|
|
352 | } |
|
|
353 | |
|
|
354 | static void |
|
|
355 | fd_reify (void) |
|
|
356 | { |
|
|
357 | int i; |
|
|
358 | |
|
|
359 | for (i = 0; i < fdchangecnt; ++i) |
|
|
360 | { |
|
|
361 | int fd = fdchanges [i]; |
|
|
362 | ANFD *anfd = anfds + fd; |
|
|
363 | struct ev_io *w; |
|
|
364 | |
|
|
365 | int wev = 0; |
|
|
366 | |
|
|
367 | for (w = anfd->head; w; w = w->next) |
|
|
368 | wev |= w->events; |
|
|
369 | |
|
|
370 | if (anfd->wev != wev) |
|
|
371 | { |
|
|
372 | method_modify (fd, anfd->wev, wev); |
|
|
373 | anfd->wev = wev; |
|
|
374 | } |
|
|
375 | } |
|
|
376 | |
|
|
377 | fdchangecnt = 0; |
|
|
378 | } |
|
|
379 | |
|
|
380 | static void |
|
|
381 | call_pending () |
|
|
382 | { |
|
|
383 | int i; |
|
|
384 | |
|
|
385 | for (i = 0; i < pendingcnt; ++i) |
|
|
386 | { |
|
|
387 | ANPENDING *p = pendings + i; |
|
|
388 | |
|
|
389 | if (p->w) |
|
|
390 | { |
|
|
391 | p->w->pending = 0; |
|
|
392 | p->w->cb (p->w, p->events); |
|
|
393 | } |
|
|
394 | } |
|
|
395 | |
|
|
396 | pendingcnt = 0; |
|
|
397 | } |
|
|
398 | |
|
|
399 | static void |
|
|
400 | timers_reify (struct ev_timer **timers, int timercnt, ev_tstamp now) |
|
|
401 | { |
|
|
402 | while (timercnt && timers [0]->at <= now) |
1466 | while (timercnt && ev_at (timers [1]) <= mn_now) |
403 | { |
1467 | { |
404 | struct ev_timer *w = timers [0]; |
1468 | ev_timer *w = (ev_timer *)timers [1]; |
|
|
1469 | |
|
|
1470 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
405 | |
1471 | |
406 | /* first reschedule or stop timer */ |
1472 | /* first reschedule or stop timer */ |
407 | if (w->repeat) |
1473 | if (w->repeat) |
408 | { |
1474 | { |
409 | if (w->is_abs) |
1475 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
410 | w->at += floor ((now - w->at) / w->repeat + 1.) * w->repeat; |
|
|
411 | else |
|
|
412 | w->at = now + w->repeat; |
|
|
413 | |
1476 | |
414 | assert (w->at > now); |
1477 | ev_at (w) += w->repeat; |
|
|
1478 | if (ev_at (w) < mn_now) |
|
|
1479 | ev_at (w) = mn_now; |
415 | |
1480 | |
416 | downheap (timers, timercnt, 0); |
1481 | downheap (timers, timercnt, 1); |
417 | } |
1482 | } |
418 | else |
1483 | else |
|
|
1484 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1485 | |
|
|
1486 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1487 | } |
|
|
1488 | } |
|
|
1489 | |
|
|
1490 | #if EV_PERIODIC_ENABLE |
|
|
1491 | void inline_size |
|
|
1492 | periodics_reify (EV_P) |
|
|
1493 | { |
|
|
1494 | while (periodiccnt && ev_at (periodics [1]) <= ev_rt_now) |
|
|
1495 | { |
|
|
1496 | ev_periodic *w = (ev_periodic *)periodics [1]; |
|
|
1497 | |
|
|
1498 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1499 | |
|
|
1500 | /* first reschedule or stop timer */ |
|
|
1501 | if (w->reschedule_cb) |
419 | { |
1502 | { |
420 | evtimer_stop (w); /* nonrepeating: stop timer */ |
1503 | ev_at (w) = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
421 | --timercnt; /* maybe pass by reference instead? */ |
1504 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) > ev_rt_now)); |
|
|
1505 | downheap (periodics, periodiccnt, 1); |
422 | } |
1506 | } |
|
|
1507 | else if (w->interval) |
|
|
1508 | { |
|
|
1509 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1510 | if (ev_at (w) - ev_rt_now <= TIME_EPSILON) ev_at (w) += w->interval; |
|
|
1511 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ev_at (w) > ev_rt_now)); |
|
|
1512 | downheap (periodics, periodiccnt, 1); |
|
|
1513 | } |
|
|
1514 | else |
|
|
1515 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
423 | |
1516 | |
424 | event ((struct ev_watcher *)w, EV_TIMEOUT); |
1517 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
425 | } |
1518 | } |
426 | } |
1519 | } |
427 | |
1520 | |
428 | static void |
1521 | static void noinline |
429 | time_update () |
1522 | periodics_reschedule (EV_P) |
430 | { |
1523 | { |
431 | int i; |
1524 | int i; |
432 | ev_now = ev_time (); |
|
|
433 | |
1525 | |
434 | if (have_monotonic) |
1526 | /* adjust periodics after time jump */ |
|
|
1527 | for (i = 0; i < periodiccnt; ++i) |
|
|
1528 | { |
|
|
1529 | ev_periodic *w = (ev_periodic *)periodics [i]; |
|
|
1530 | |
|
|
1531 | if (w->reschedule_cb) |
|
|
1532 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1533 | else if (w->interval) |
|
|
1534 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
435 | { |
1535 | } |
436 | ev_tstamp odiff = diff; |
|
|
437 | |
1536 | |
438 | /* detecting time jumps is much more difficult */ |
1537 | /* now rebuild the heap */ |
439 | for (i = 2; --i; ) /* loop a few times, before making important decisions */ |
1538 | for (i = periodiccnt >> 1; i--; ) |
|
|
1539 | downheap (periodics, periodiccnt, i); |
|
|
1540 | } |
|
|
1541 | #endif |
|
|
1542 | |
|
|
1543 | #if EV_IDLE_ENABLE |
|
|
1544 | void inline_size |
|
|
1545 | idle_reify (EV_P) |
|
|
1546 | { |
|
|
1547 | if (expect_false (idleall)) |
|
|
1548 | { |
|
|
1549 | int pri; |
|
|
1550 | |
|
|
1551 | for (pri = NUMPRI; pri--; ) |
440 | { |
1552 | { |
|
|
1553 | if (pendingcnt [pri]) |
|
|
1554 | break; |
|
|
1555 | |
|
|
1556 | if (idlecnt [pri]) |
|
|
1557 | { |
|
|
1558 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
|
|
1559 | break; |
|
|
1560 | } |
|
|
1561 | } |
|
|
1562 | } |
|
|
1563 | } |
|
|
1564 | #endif |
|
|
1565 | |
|
|
1566 | void inline_speed |
|
|
1567 | time_update (EV_P_ ev_tstamp max_block) |
|
|
1568 | { |
|
|
1569 | int i; |
|
|
1570 | |
|
|
1571 | #if EV_USE_MONOTONIC |
|
|
1572 | if (expect_true (have_monotonic)) |
|
|
1573 | { |
|
|
1574 | ev_tstamp odiff = rtmn_diff; |
|
|
1575 | |
441 | now = get_clock (); |
1576 | mn_now = get_clock (); |
|
|
1577 | |
|
|
1578 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
1579 | /* interpolate in the meantime */ |
|
|
1580 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
|
|
1581 | { |
|
|
1582 | ev_rt_now = rtmn_diff + mn_now; |
|
|
1583 | return; |
|
|
1584 | } |
|
|
1585 | |
|
|
1586 | now_floor = mn_now; |
|
|
1587 | ev_rt_now = ev_time (); |
|
|
1588 | |
|
|
1589 | /* loop a few times, before making important decisions. |
|
|
1590 | * on the choice of "4": one iteration isn't enough, |
|
|
1591 | * in case we get preempted during the calls to |
|
|
1592 | * ev_time and get_clock. a second call is almost guaranteed |
|
|
1593 | * to succeed in that case, though. and looping a few more times |
|
|
1594 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1595 | * in the unlikely event of having been preempted here. |
|
|
1596 | */ |
|
|
1597 | for (i = 4; --i; ) |
|
|
1598 | { |
442 | diff = ev_now - now; |
1599 | rtmn_diff = ev_rt_now - mn_now; |
443 | |
1600 | |
444 | if (fabs (odiff - diff) < MIN_TIMEJUMP) |
1601 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
445 | return; /* all is well */ |
1602 | return; /* all is well */ |
446 | |
1603 | |
447 | ev_now = ev_time (); |
1604 | ev_rt_now = ev_time (); |
|
|
1605 | mn_now = get_clock (); |
|
|
1606 | now_floor = mn_now; |
448 | } |
1607 | } |
449 | |
1608 | |
450 | /* time jump detected, reschedule atimers */ |
1609 | # if EV_PERIODIC_ENABLE |
451 | for (i = 0; i < atimercnt; ++i) |
1610 | periodics_reschedule (EV_A); |
|
|
1611 | # endif |
|
|
1612 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1613 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1614 | } |
|
|
1615 | else |
|
|
1616 | #endif |
|
|
1617 | { |
|
|
1618 | ev_rt_now = ev_time (); |
|
|
1619 | |
|
|
1620 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
452 | { |
1621 | { |
453 | struct ev_timer *w = atimers [i]; |
1622 | #if EV_PERIODIC_ENABLE |
454 | w->at += ceil ((ev_now - w->at) / w->repeat + 1.) * w->repeat; |
1623 | periodics_reschedule (EV_A); |
|
|
1624 | #endif |
|
|
1625 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1626 | for (i = 1; i <= timercnt; ++i) |
|
|
1627 | ev_at (timers [i]) += ev_rt_now - mn_now; |
455 | } |
1628 | } |
456 | } |
|
|
457 | else |
|
|
458 | { |
|
|
459 | if (now > ev_now || now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP) |
|
|
460 | /* time jump detected, adjust rtimers */ |
|
|
461 | for (i = 0; i < rtimercnt; ++i) |
|
|
462 | rtimers [i]->at += ev_now - now; |
|
|
463 | |
1629 | |
464 | now = ev_now; |
1630 | mn_now = ev_rt_now; |
465 | } |
1631 | } |
466 | } |
1632 | } |
467 | |
1633 | |
468 | int ev_loop_done; |
1634 | void |
|
|
1635 | ev_ref (EV_P) |
|
|
1636 | { |
|
|
1637 | ++activecnt; |
|
|
1638 | } |
469 | |
1639 | |
|
|
1640 | void |
|
|
1641 | ev_unref (EV_P) |
|
|
1642 | { |
|
|
1643 | --activecnt; |
|
|
1644 | } |
|
|
1645 | |
|
|
1646 | static int loop_done; |
|
|
1647 | |
|
|
1648 | void |
470 | void ev_loop (int flags) |
1649 | ev_loop (EV_P_ int flags) |
471 | { |
1650 | { |
472 | double block; |
1651 | loop_done = EVUNLOOP_CANCEL; |
473 | ev_loop_done = flags & EVLOOP_ONESHOT; |
1652 | |
|
|
1653 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
474 | |
1654 | |
475 | do |
1655 | do |
476 | { |
1656 | { |
477 | hook_call (EVHOOK_PREPOLL); |
1657 | #ifndef _WIN32 |
|
|
1658 | if (expect_false (curpid)) /* penalise the forking check even more */ |
|
|
1659 | if (expect_false (getpid () != curpid)) |
|
|
1660 | { |
|
|
1661 | curpid = getpid (); |
|
|
1662 | postfork = 1; |
|
|
1663 | } |
|
|
1664 | #endif |
|
|
1665 | |
|
|
1666 | #if EV_FORK_ENABLE |
|
|
1667 | /* we might have forked, so queue fork handlers */ |
|
|
1668 | if (expect_false (postfork)) |
|
|
1669 | if (forkcnt) |
|
|
1670 | { |
|
|
1671 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
|
|
1672 | call_pending (EV_A); |
|
|
1673 | } |
|
|
1674 | #endif |
|
|
1675 | |
|
|
1676 | /* queue prepare watchers (and execute them) */ |
|
|
1677 | if (expect_false (preparecnt)) |
|
|
1678 | { |
|
|
1679 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
|
|
1680 | call_pending (EV_A); |
|
|
1681 | } |
|
|
1682 | |
|
|
1683 | if (expect_false (!activecnt)) |
|
|
1684 | break; |
|
|
1685 | |
|
|
1686 | /* we might have forked, so reify kernel state if necessary */ |
|
|
1687 | if (expect_false (postfork)) |
|
|
1688 | loop_fork (EV_A); |
478 | |
1689 | |
479 | /* update fd-related kernel structures */ |
1690 | /* update fd-related kernel structures */ |
480 | fd_reify (); |
1691 | fd_reify (EV_A); |
481 | |
1692 | |
482 | /* calculate blocking time */ |
1693 | /* calculate blocking time */ |
483 | if (flags & EVLOOP_NONBLOCK) |
1694 | { |
484 | block = 0.; |
1695 | ev_tstamp waittime = 0.; |
485 | else |
1696 | ev_tstamp sleeptime = 0.; |
|
|
1697 | |
|
|
1698 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
486 | { |
1699 | { |
|
|
1700 | /* update time to cancel out callback processing overhead */ |
|
|
1701 | time_update (EV_A_ 1e100); |
|
|
1702 | |
487 | block = MAX_BLOCKTIME; |
1703 | waittime = MAX_BLOCKTIME; |
488 | |
1704 | |
489 | if (rtimercnt) |
1705 | if (timercnt) |
490 | { |
1706 | { |
491 | ev_tstamp to = rtimers [0]->at - get_clock () + method_fudge; |
1707 | ev_tstamp to = ev_at (timers [1]) - mn_now + backend_fudge; |
492 | if (block > to) block = to; |
1708 | if (waittime > to) waittime = to; |
493 | } |
1709 | } |
494 | |
1710 | |
|
|
1711 | #if EV_PERIODIC_ENABLE |
495 | if (atimercnt) |
1712 | if (periodiccnt) |
496 | { |
1713 | { |
497 | ev_tstamp to = atimers [0]->at - ev_time () + method_fudge; |
1714 | ev_tstamp to = ev_at (periodics [1]) - ev_rt_now + backend_fudge; |
498 | if (block > to) block = to; |
1715 | if (waittime > to) waittime = to; |
499 | } |
1716 | } |
|
|
1717 | #endif |
500 | |
1718 | |
501 | if (block < 0.) block = 0.; |
1719 | if (expect_false (waittime < timeout_blocktime)) |
|
|
1720 | waittime = timeout_blocktime; |
|
|
1721 | |
|
|
1722 | sleeptime = waittime - backend_fudge; |
|
|
1723 | |
|
|
1724 | if (expect_true (sleeptime > io_blocktime)) |
|
|
1725 | sleeptime = io_blocktime; |
|
|
1726 | |
|
|
1727 | if (sleeptime) |
|
|
1728 | { |
|
|
1729 | ev_sleep (sleeptime); |
|
|
1730 | waittime -= sleeptime; |
|
|
1731 | } |
502 | } |
1732 | } |
503 | |
1733 | |
504 | method_poll (block); |
1734 | ++loop_count; |
|
|
1735 | backend_poll (EV_A_ waittime); |
505 | |
1736 | |
506 | /* update ev_now, do magic */ |
1737 | /* update ev_rt_now, do magic */ |
507 | time_update (); |
1738 | time_update (EV_A_ waittime + sleeptime); |
|
|
1739 | } |
508 | |
1740 | |
509 | hook_call (EVHOOK_POSTPOLL); |
|
|
510 | |
|
|
511 | /* put pending timers into pendign queue and reschedule them */ |
1741 | /* queue pending timers and reschedule them */ |
512 | /* absolute timers first */ |
1742 | timers_reify (EV_A); /* relative timers called last */ |
513 | timers_reify (atimers, atimercnt, ev_now); |
1743 | #if EV_PERIODIC_ENABLE |
514 | /* relative timers second */ |
1744 | periodics_reify (EV_A); /* absolute timers called first */ |
515 | timers_reify (rtimers, rtimercnt, now); |
1745 | #endif |
516 | |
1746 | |
|
|
1747 | #if EV_IDLE_ENABLE |
|
|
1748 | /* queue idle watchers unless other events are pending */ |
|
|
1749 | idle_reify (EV_A); |
|
|
1750 | #endif |
|
|
1751 | |
|
|
1752 | /* queue check watchers, to be executed first */ |
|
|
1753 | if (expect_false (checkcnt)) |
|
|
1754 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
1755 | |
517 | call_pending (); |
1756 | call_pending (EV_A); |
518 | } |
1757 | } |
519 | while (!ev_loop_done); |
1758 | while (expect_true ( |
|
|
1759 | activecnt |
|
|
1760 | && !loop_done |
|
|
1761 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
1762 | )); |
|
|
1763 | |
|
|
1764 | if (loop_done == EVUNLOOP_ONE) |
|
|
1765 | loop_done = EVUNLOOP_CANCEL; |
|
|
1766 | } |
|
|
1767 | |
|
|
1768 | void |
|
|
1769 | ev_unloop (EV_P_ int how) |
|
|
1770 | { |
|
|
1771 | loop_done = how; |
520 | } |
1772 | } |
521 | |
1773 | |
522 | /*****************************************************************************/ |
1774 | /*****************************************************************************/ |
523 | |
1775 | |
524 | static void |
1776 | void inline_size |
525 | wlist_add (struct ev_watcher_list **head, struct ev_watcher_list *elem) |
1777 | wlist_add (WL *head, WL elem) |
526 | { |
1778 | { |
527 | elem->next = *head; |
1779 | elem->next = *head; |
528 | *head = elem; |
1780 | *head = elem; |
529 | } |
1781 | } |
530 | |
1782 | |
531 | static void |
1783 | void inline_size |
532 | wlist_del (struct ev_watcher_list **head, struct ev_watcher_list *elem) |
1784 | wlist_del (WL *head, WL elem) |
533 | { |
1785 | { |
534 | while (*head) |
1786 | while (*head) |
535 | { |
1787 | { |
536 | if (*head == elem) |
1788 | if (*head == elem) |
537 | { |
1789 | { |
… | |
… | |
541 | |
1793 | |
542 | head = &(*head)->next; |
1794 | head = &(*head)->next; |
543 | } |
1795 | } |
544 | } |
1796 | } |
545 | |
1797 | |
546 | static void |
1798 | void inline_speed |
547 | ev_start (struct ev_watcher *w, int active) |
1799 | clear_pending (EV_P_ W w) |
548 | { |
1800 | { |
|
|
1801 | if (w->pending) |
|
|
1802 | { |
|
|
1803 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
549 | w->pending = 0; |
1804 | w->pending = 0; |
|
|
1805 | } |
|
|
1806 | } |
|
|
1807 | |
|
|
1808 | int |
|
|
1809 | ev_clear_pending (EV_P_ void *w) |
|
|
1810 | { |
|
|
1811 | W w_ = (W)w; |
|
|
1812 | int pending = w_->pending; |
|
|
1813 | |
|
|
1814 | if (expect_true (pending)) |
|
|
1815 | { |
|
|
1816 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
1817 | w_->pending = 0; |
|
|
1818 | p->w = 0; |
|
|
1819 | return p->events; |
|
|
1820 | } |
|
|
1821 | else |
|
|
1822 | return 0; |
|
|
1823 | } |
|
|
1824 | |
|
|
1825 | void inline_size |
|
|
1826 | pri_adjust (EV_P_ W w) |
|
|
1827 | { |
|
|
1828 | int pri = w->priority; |
|
|
1829 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
|
|
1830 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
|
|
1831 | w->priority = pri; |
|
|
1832 | } |
|
|
1833 | |
|
|
1834 | void inline_speed |
|
|
1835 | ev_start (EV_P_ W w, int active) |
|
|
1836 | { |
|
|
1837 | pri_adjust (EV_A_ w); |
550 | w->active = active; |
1838 | w->active = active; |
|
|
1839 | ev_ref (EV_A); |
551 | } |
1840 | } |
552 | |
1841 | |
553 | static void |
1842 | void inline_size |
554 | ev_stop (struct ev_watcher *w) |
1843 | ev_stop (EV_P_ W w) |
555 | { |
1844 | { |
556 | if (w->pending) |
1845 | ev_unref (EV_A); |
557 | pendings [w->pending - 1].w = 0; |
|
|
558 | |
|
|
559 | w->active = 0; |
1846 | w->active = 0; |
560 | /* nop */ |
|
|
561 | } |
1847 | } |
562 | |
1848 | |
563 | /*****************************************************************************/ |
1849 | /*****************************************************************************/ |
564 | |
1850 | |
565 | void |
1851 | void noinline |
566 | evio_start (struct ev_io *w) |
1852 | ev_io_start (EV_P_ ev_io *w) |
|
|
1853 | { |
|
|
1854 | int fd = w->fd; |
|
|
1855 | |
|
|
1856 | if (expect_false (ev_is_active (w))) |
|
|
1857 | return; |
|
|
1858 | |
|
|
1859 | assert (("ev_io_start called with negative fd", fd >= 0)); |
|
|
1860 | |
|
|
1861 | ev_start (EV_A_ (W)w, 1); |
|
|
1862 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
|
|
1863 | wlist_add (&anfds[fd].head, (WL)w); |
|
|
1864 | |
|
|
1865 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
|
|
1866 | w->events &= ~EV_IOFDSET; |
|
|
1867 | } |
|
|
1868 | |
|
|
1869 | void noinline |
|
|
1870 | ev_io_stop (EV_P_ ev_io *w) |
|
|
1871 | { |
|
|
1872 | clear_pending (EV_A_ (W)w); |
|
|
1873 | if (expect_false (!ev_is_active (w))) |
|
|
1874 | return; |
|
|
1875 | |
|
|
1876 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
1877 | |
|
|
1878 | wlist_del (&anfds[w->fd].head, (WL)w); |
|
|
1879 | ev_stop (EV_A_ (W)w); |
|
|
1880 | |
|
|
1881 | fd_change (EV_A_ w->fd, 1); |
|
|
1882 | } |
|
|
1883 | |
|
|
1884 | void noinline |
|
|
1885 | ev_timer_start (EV_P_ ev_timer *w) |
|
|
1886 | { |
|
|
1887 | if (expect_false (ev_is_active (w))) |
|
|
1888 | return; |
|
|
1889 | |
|
|
1890 | ev_at (w) += mn_now; |
|
|
1891 | |
|
|
1892 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
|
|
1893 | |
|
|
1894 | ev_start (EV_A_ (W)w, ++timercnt); |
|
|
1895 | array_needsize (WT, timers, timermax, timercnt + 1, EMPTY2); |
|
|
1896 | timers [timercnt] = (WT)w; |
|
|
1897 | upheap (timers, timercnt); |
|
|
1898 | |
|
|
1899 | /*assert (("internal timer heap corruption", timers [((W)w)->active] == w));*/ |
|
|
1900 | } |
|
|
1901 | |
|
|
1902 | void noinline |
|
|
1903 | ev_timer_stop (EV_P_ ev_timer *w) |
|
|
1904 | { |
|
|
1905 | clear_pending (EV_A_ (W)w); |
|
|
1906 | if (expect_false (!ev_is_active (w))) |
|
|
1907 | return; |
|
|
1908 | |
|
|
1909 | assert (("internal timer heap corruption", timers [((W)w)->active] == (WT)w)); |
|
|
1910 | |
|
|
1911 | { |
|
|
1912 | int active = ((W)w)->active; |
|
|
1913 | |
|
|
1914 | if (expect_true (active < timercnt)) |
|
|
1915 | { |
|
|
1916 | timers [active] = timers [timercnt]; |
|
|
1917 | adjustheap (timers, timercnt, active); |
|
|
1918 | } |
|
|
1919 | |
|
|
1920 | --timercnt; |
|
|
1921 | } |
|
|
1922 | |
|
|
1923 | ev_at (w) -= mn_now; |
|
|
1924 | |
|
|
1925 | ev_stop (EV_A_ (W)w); |
|
|
1926 | } |
|
|
1927 | |
|
|
1928 | void noinline |
|
|
1929 | ev_timer_again (EV_P_ ev_timer *w) |
567 | { |
1930 | { |
568 | if (ev_is_active (w)) |
1931 | if (ev_is_active (w)) |
569 | return; |
|
|
570 | |
|
|
571 | int fd = w->fd; |
|
|
572 | |
|
|
573 | ev_start ((struct ev_watcher *)w, 1); |
|
|
574 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
|
|
575 | wlist_add ((struct ev_watcher_list **)&anfds[fd].head, (struct ev_watcher_list *)w); |
|
|
576 | |
|
|
577 | ++fdchangecnt; |
|
|
578 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
|
|
579 | fdchanges [fdchangecnt - 1] = fd; |
|
|
580 | } |
|
|
581 | |
|
|
582 | void |
|
|
583 | evio_stop (struct ev_io *w) |
|
|
584 | { |
|
|
585 | if (!ev_is_active (w)) |
|
|
586 | return; |
|
|
587 | |
|
|
588 | wlist_del ((struct ev_watcher_list **)&anfds[w->fd].head, (struct ev_watcher_list *)w); |
|
|
589 | ev_stop ((struct ev_watcher *)w); |
|
|
590 | |
|
|
591 | ++fdchangecnt; |
|
|
592 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
|
|
593 | fdchanges [fdchangecnt - 1] = w->fd; |
|
|
594 | } |
|
|
595 | |
|
|
596 | void |
|
|
597 | evtimer_start (struct ev_timer *w) |
|
|
598 | { |
|
|
599 | if (ev_is_active (w)) |
|
|
600 | return; |
|
|
601 | |
|
|
602 | if (w->is_abs) |
|
|
603 | { |
1932 | { |
604 | /* this formula differs from the one in timer_reify becuse we do not round up */ |
|
|
605 | if (w->repeat) |
1933 | if (w->repeat) |
606 | w->at += ceil ((ev_now - w->at) / w->repeat) * w->repeat; |
1934 | { |
|
|
1935 | ev_at (w) = mn_now + w->repeat; |
|
|
1936 | adjustheap (timers, timercnt, ((W)w)->active); |
|
|
1937 | } |
|
|
1938 | else |
|
|
1939 | ev_timer_stop (EV_A_ w); |
|
|
1940 | } |
|
|
1941 | else if (w->repeat) |
|
|
1942 | { |
|
|
1943 | w->at = w->repeat; |
|
|
1944 | ev_timer_start (EV_A_ w); |
|
|
1945 | } |
|
|
1946 | } |
607 | |
1947 | |
608 | ev_start ((struct ev_watcher *)w, ++atimercnt); |
1948 | #if EV_PERIODIC_ENABLE |
609 | array_needsize (atimers, atimermax, atimercnt, ); |
1949 | void noinline |
610 | atimers [atimercnt - 1] = w; |
1950 | ev_periodic_start (EV_P_ ev_periodic *w) |
611 | upheap (atimers, atimercnt - 1); |
1951 | { |
|
|
1952 | if (expect_false (ev_is_active (w))) |
|
|
1953 | return; |
|
|
1954 | |
|
|
1955 | if (w->reschedule_cb) |
|
|
1956 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1957 | else if (w->interval) |
|
|
1958 | { |
|
|
1959 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
|
|
1960 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
|
|
1961 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
612 | } |
1962 | } |
613 | else |
1963 | else |
614 | { |
1964 | ev_at (w) = w->offset; |
615 | w->at += now; |
|
|
616 | |
1965 | |
617 | ev_start ((struct ev_watcher *)w, ++rtimercnt); |
1966 | ev_start (EV_A_ (W)w, ++periodiccnt); |
618 | array_needsize (rtimers, rtimermax, rtimercnt, ); |
1967 | array_needsize (WT, periodics, periodicmax, periodiccnt + 1, EMPTY2); |
619 | rtimers [rtimercnt - 1] = w; |
1968 | periodics [periodiccnt] = (WT)w; |
620 | upheap (rtimers, rtimercnt - 1); |
1969 | upheap (periodics, periodiccnt); |
621 | } |
|
|
622 | |
1970 | |
|
|
1971 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
623 | } |
1972 | } |
624 | |
1973 | |
625 | void |
1974 | void noinline |
626 | evtimer_stop (struct ev_timer *w) |
1975 | ev_periodic_stop (EV_P_ ev_periodic *w) |
627 | { |
1976 | { |
|
|
1977 | clear_pending (EV_A_ (W)w); |
628 | if (!ev_is_active (w)) |
1978 | if (expect_false (!ev_is_active (w))) |
629 | return; |
1979 | return; |
630 | |
1980 | |
631 | if (w->is_abs) |
1981 | assert (("internal periodic heap corruption", periodics [((W)w)->active] == (WT)w)); |
|
|
1982 | |
632 | { |
1983 | { |
633 | if (w->active < atimercnt--) |
1984 | int active = ((W)w)->active; |
|
|
1985 | |
|
|
1986 | if (expect_true (active < periodiccnt)) |
634 | { |
1987 | { |
635 | atimers [w->active - 1] = atimers [atimercnt]; |
1988 | periodics [active] = periodics [periodiccnt]; |
636 | downheap (atimers, atimercnt, w->active - 1); |
1989 | adjustheap (periodics, periodiccnt, active); |
637 | } |
1990 | } |
|
|
1991 | |
|
|
1992 | --periodiccnt; |
638 | } |
1993 | } |
639 | else |
|
|
640 | { |
|
|
641 | if (w->active < rtimercnt--) |
|
|
642 | { |
|
|
643 | rtimers [w->active - 1] = rtimers [rtimercnt]; |
|
|
644 | downheap (rtimers, rtimercnt, w->active - 1); |
|
|
645 | } |
|
|
646 | } |
|
|
647 | |
1994 | |
648 | ev_stop ((struct ev_watcher *)w); |
1995 | ev_stop (EV_A_ (W)w); |
649 | } |
1996 | } |
650 | |
1997 | |
651 | void |
1998 | void noinline |
|
|
1999 | ev_periodic_again (EV_P_ ev_periodic *w) |
|
|
2000 | { |
|
|
2001 | /* TODO: use adjustheap and recalculation */ |
|
|
2002 | ev_periodic_stop (EV_A_ w); |
|
|
2003 | ev_periodic_start (EV_A_ w); |
|
|
2004 | } |
|
|
2005 | #endif |
|
|
2006 | |
|
|
2007 | #ifndef SA_RESTART |
|
|
2008 | # define SA_RESTART 0 |
|
|
2009 | #endif |
|
|
2010 | |
|
|
2011 | void noinline |
652 | evsignal_start (struct ev_signal *w) |
2012 | ev_signal_start (EV_P_ ev_signal *w) |
653 | { |
2013 | { |
|
|
2014 | #if EV_MULTIPLICITY |
|
|
2015 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2016 | #endif |
654 | if (ev_is_active (w)) |
2017 | if (expect_false (ev_is_active (w))) |
655 | return; |
2018 | return; |
656 | |
2019 | |
657 | ev_start ((struct ev_watcher *)w, 1); |
2020 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
|
|
2021 | |
|
|
2022 | evpipe_init (EV_A); |
|
|
2023 | |
|
|
2024 | { |
|
|
2025 | #ifndef _WIN32 |
|
|
2026 | sigset_t full, prev; |
|
|
2027 | sigfillset (&full); |
|
|
2028 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2029 | #endif |
|
|
2030 | |
658 | array_needsize (signals, signalmax, w->signum, signals_init); |
2031 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
659 | wlist_add ((struct ev_watcher_list **)&signals [w->signum - 1].head, (struct ev_watcher_list *)w); |
|
|
660 | |
2032 | |
|
|
2033 | #ifndef _WIN32 |
|
|
2034 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
2035 | #endif |
|
|
2036 | } |
|
|
2037 | |
|
|
2038 | ev_start (EV_A_ (W)w, 1); |
|
|
2039 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
|
|
2040 | |
661 | if (!w->next) |
2041 | if (!((WL)w)->next) |
662 | { |
2042 | { |
|
|
2043 | #if _WIN32 |
|
|
2044 | signal (w->signum, ev_sighandler); |
|
|
2045 | #else |
663 | struct sigaction sa; |
2046 | struct sigaction sa; |
664 | sa.sa_handler = sighandler; |
2047 | sa.sa_handler = ev_sighandler; |
665 | sigfillset (&sa.sa_mask); |
2048 | sigfillset (&sa.sa_mask); |
666 | sa.sa_flags = 0; |
2049 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
667 | sigaction (w->signum, &sa, 0); |
2050 | sigaction (w->signum, &sa, 0); |
|
|
2051 | #endif |
668 | } |
2052 | } |
669 | } |
2053 | } |
670 | |
2054 | |
671 | void |
2055 | void noinline |
672 | evsignal_stop (struct ev_signal *w) |
2056 | ev_signal_stop (EV_P_ ev_signal *w) |
673 | { |
2057 | { |
|
|
2058 | clear_pending (EV_A_ (W)w); |
674 | if (!ev_is_active (w)) |
2059 | if (expect_false (!ev_is_active (w))) |
675 | return; |
2060 | return; |
676 | |
2061 | |
677 | wlist_del ((struct ev_watcher_list **)&signals [w->signum - 1].head, (struct ev_watcher_list *)w); |
2062 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
678 | ev_stop ((struct ev_watcher *)w); |
2063 | ev_stop (EV_A_ (W)w); |
679 | |
2064 | |
680 | if (!signals [w->signum - 1].head) |
2065 | if (!signals [w->signum - 1].head) |
681 | signal (w->signum, SIG_DFL); |
2066 | signal (w->signum, SIG_DFL); |
682 | } |
2067 | } |
683 | |
2068 | |
|
|
2069 | void |
|
|
2070 | ev_child_start (EV_P_ ev_child *w) |
|
|
2071 | { |
|
|
2072 | #if EV_MULTIPLICITY |
|
|
2073 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2074 | #endif |
|
|
2075 | if (expect_false (ev_is_active (w))) |
|
|
2076 | return; |
|
|
2077 | |
|
|
2078 | ev_start (EV_A_ (W)w, 1); |
|
|
2079 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
2080 | } |
|
|
2081 | |
|
|
2082 | void |
|
|
2083 | ev_child_stop (EV_P_ ev_child *w) |
|
|
2084 | { |
|
|
2085 | clear_pending (EV_A_ (W)w); |
|
|
2086 | if (expect_false (!ev_is_active (w))) |
|
|
2087 | return; |
|
|
2088 | |
|
|
2089 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
2090 | ev_stop (EV_A_ (W)w); |
|
|
2091 | } |
|
|
2092 | |
|
|
2093 | #if EV_STAT_ENABLE |
|
|
2094 | |
|
|
2095 | # ifdef _WIN32 |
|
|
2096 | # undef lstat |
|
|
2097 | # define lstat(a,b) _stati64 (a,b) |
|
|
2098 | # endif |
|
|
2099 | |
|
|
2100 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2101 | #define MIN_STAT_INTERVAL 0.1074891 |
|
|
2102 | |
|
|
2103 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
|
|
2104 | |
|
|
2105 | #if EV_USE_INOTIFY |
|
|
2106 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
2107 | |
|
|
2108 | static void noinline |
|
|
2109 | infy_add (EV_P_ ev_stat *w) |
|
|
2110 | { |
|
|
2111 | 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); |
|
|
2112 | |
|
|
2113 | if (w->wd < 0) |
|
|
2114 | { |
|
|
2115 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2116 | |
|
|
2117 | /* monitor some parent directory for speedup hints */ |
|
|
2118 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
|
|
2119 | { |
|
|
2120 | char path [4096]; |
|
|
2121 | strcpy (path, w->path); |
|
|
2122 | |
|
|
2123 | do |
|
|
2124 | { |
|
|
2125 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
|
|
2126 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
|
|
2127 | |
|
|
2128 | char *pend = strrchr (path, '/'); |
|
|
2129 | |
|
|
2130 | if (!pend) |
|
|
2131 | break; /* whoops, no '/', complain to your admin */ |
|
|
2132 | |
|
|
2133 | *pend = 0; |
|
|
2134 | w->wd = inotify_add_watch (fs_fd, path, mask); |
|
|
2135 | } |
|
|
2136 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
|
|
2137 | } |
|
|
2138 | } |
|
|
2139 | else |
|
|
2140 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2141 | |
|
|
2142 | if (w->wd >= 0) |
|
|
2143 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2144 | } |
|
|
2145 | |
|
|
2146 | static void noinline |
|
|
2147 | infy_del (EV_P_ ev_stat *w) |
|
|
2148 | { |
|
|
2149 | int slot; |
|
|
2150 | int wd = w->wd; |
|
|
2151 | |
|
|
2152 | if (wd < 0) |
|
|
2153 | return; |
|
|
2154 | |
|
|
2155 | w->wd = -2; |
|
|
2156 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
|
|
2157 | wlist_del (&fs_hash [slot].head, (WL)w); |
|
|
2158 | |
|
|
2159 | /* remove this watcher, if others are watching it, they will rearm */ |
|
|
2160 | inotify_rm_watch (fs_fd, wd); |
|
|
2161 | } |
|
|
2162 | |
|
|
2163 | static void noinline |
|
|
2164 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
|
|
2165 | { |
|
|
2166 | if (slot < 0) |
|
|
2167 | /* overflow, need to check for all hahs slots */ |
|
|
2168 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2169 | infy_wd (EV_A_ slot, wd, ev); |
|
|
2170 | else |
|
|
2171 | { |
|
|
2172 | WL w_; |
|
|
2173 | |
|
|
2174 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
|
|
2175 | { |
|
|
2176 | ev_stat *w = (ev_stat *)w_; |
|
|
2177 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
|
|
2178 | |
|
|
2179 | if (w->wd == wd || wd == -1) |
|
|
2180 | { |
|
|
2181 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
|
|
2182 | { |
|
|
2183 | w->wd = -1; |
|
|
2184 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2185 | } |
|
|
2186 | |
|
|
2187 | stat_timer_cb (EV_A_ &w->timer, 0); |
|
|
2188 | } |
|
|
2189 | } |
|
|
2190 | } |
|
|
2191 | } |
|
|
2192 | |
|
|
2193 | static void |
|
|
2194 | infy_cb (EV_P_ ev_io *w, int revents) |
|
|
2195 | { |
|
|
2196 | char buf [EV_INOTIFY_BUFSIZE]; |
|
|
2197 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2198 | int ofs; |
|
|
2199 | int len = read (fs_fd, buf, sizeof (buf)); |
|
|
2200 | |
|
|
2201 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
|
|
2202 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
2203 | } |
|
|
2204 | |
|
|
2205 | void inline_size |
|
|
2206 | infy_init (EV_P) |
|
|
2207 | { |
|
|
2208 | if (fs_fd != -2) |
|
|
2209 | return; |
|
|
2210 | |
|
|
2211 | fs_fd = inotify_init (); |
|
|
2212 | |
|
|
2213 | if (fs_fd >= 0) |
|
|
2214 | { |
|
|
2215 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
|
|
2216 | ev_set_priority (&fs_w, EV_MAXPRI); |
|
|
2217 | ev_io_start (EV_A_ &fs_w); |
|
|
2218 | } |
|
|
2219 | } |
|
|
2220 | |
|
|
2221 | void inline_size |
|
|
2222 | infy_fork (EV_P) |
|
|
2223 | { |
|
|
2224 | int slot; |
|
|
2225 | |
|
|
2226 | if (fs_fd < 0) |
|
|
2227 | return; |
|
|
2228 | |
|
|
2229 | close (fs_fd); |
|
|
2230 | fs_fd = inotify_init (); |
|
|
2231 | |
|
|
2232 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2233 | { |
|
|
2234 | WL w_ = fs_hash [slot].head; |
|
|
2235 | fs_hash [slot].head = 0; |
|
|
2236 | |
|
|
2237 | while (w_) |
|
|
2238 | { |
|
|
2239 | ev_stat *w = (ev_stat *)w_; |
|
|
2240 | w_ = w_->next; /* lets us add this watcher */ |
|
|
2241 | |
|
|
2242 | w->wd = -1; |
|
|
2243 | |
|
|
2244 | if (fs_fd >= 0) |
|
|
2245 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2246 | else |
|
|
2247 | ev_timer_start (EV_A_ &w->timer); |
|
|
2248 | } |
|
|
2249 | |
|
|
2250 | } |
|
|
2251 | } |
|
|
2252 | |
|
|
2253 | #endif |
|
|
2254 | |
|
|
2255 | void |
|
|
2256 | ev_stat_stat (EV_P_ ev_stat *w) |
|
|
2257 | { |
|
|
2258 | if (lstat (w->path, &w->attr) < 0) |
|
|
2259 | w->attr.st_nlink = 0; |
|
|
2260 | else if (!w->attr.st_nlink) |
|
|
2261 | w->attr.st_nlink = 1; |
|
|
2262 | } |
|
|
2263 | |
|
|
2264 | static void noinline |
|
|
2265 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
2266 | { |
|
|
2267 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
2268 | |
|
|
2269 | /* we copy this here each the time so that */ |
|
|
2270 | /* prev has the old value when the callback gets invoked */ |
|
|
2271 | w->prev = w->attr; |
|
|
2272 | ev_stat_stat (EV_A_ w); |
|
|
2273 | |
|
|
2274 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
|
|
2275 | if ( |
|
|
2276 | w->prev.st_dev != w->attr.st_dev |
|
|
2277 | || w->prev.st_ino != w->attr.st_ino |
|
|
2278 | || w->prev.st_mode != w->attr.st_mode |
|
|
2279 | || w->prev.st_nlink != w->attr.st_nlink |
|
|
2280 | || w->prev.st_uid != w->attr.st_uid |
|
|
2281 | || w->prev.st_gid != w->attr.st_gid |
|
|
2282 | || w->prev.st_rdev != w->attr.st_rdev |
|
|
2283 | || w->prev.st_size != w->attr.st_size |
|
|
2284 | || w->prev.st_atime != w->attr.st_atime |
|
|
2285 | || w->prev.st_mtime != w->attr.st_mtime |
|
|
2286 | || w->prev.st_ctime != w->attr.st_ctime |
|
|
2287 | ) { |
|
|
2288 | #if EV_USE_INOTIFY |
|
|
2289 | infy_del (EV_A_ w); |
|
|
2290 | infy_add (EV_A_ w); |
|
|
2291 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2292 | #endif |
|
|
2293 | |
|
|
2294 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
2295 | } |
|
|
2296 | } |
|
|
2297 | |
|
|
2298 | void |
|
|
2299 | ev_stat_start (EV_P_ ev_stat *w) |
|
|
2300 | { |
|
|
2301 | if (expect_false (ev_is_active (w))) |
|
|
2302 | return; |
|
|
2303 | |
|
|
2304 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2305 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2306 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2307 | |
|
|
2308 | ev_stat_stat (EV_A_ w); |
|
|
2309 | |
|
|
2310 | if (w->interval < MIN_STAT_INTERVAL) |
|
|
2311 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2312 | |
|
|
2313 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
|
|
2314 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
2315 | |
|
|
2316 | #if EV_USE_INOTIFY |
|
|
2317 | infy_init (EV_A); |
|
|
2318 | |
|
|
2319 | if (fs_fd >= 0) |
|
|
2320 | infy_add (EV_A_ w); |
|
|
2321 | else |
|
|
2322 | #endif |
|
|
2323 | ev_timer_start (EV_A_ &w->timer); |
|
|
2324 | |
|
|
2325 | ev_start (EV_A_ (W)w, 1); |
|
|
2326 | } |
|
|
2327 | |
|
|
2328 | void |
|
|
2329 | ev_stat_stop (EV_P_ ev_stat *w) |
|
|
2330 | { |
|
|
2331 | clear_pending (EV_A_ (W)w); |
|
|
2332 | if (expect_false (!ev_is_active (w))) |
|
|
2333 | return; |
|
|
2334 | |
|
|
2335 | #if EV_USE_INOTIFY |
|
|
2336 | infy_del (EV_A_ w); |
|
|
2337 | #endif |
|
|
2338 | ev_timer_stop (EV_A_ &w->timer); |
|
|
2339 | |
|
|
2340 | ev_stop (EV_A_ (W)w); |
|
|
2341 | } |
|
|
2342 | #endif |
|
|
2343 | |
|
|
2344 | #if EV_IDLE_ENABLE |
|
|
2345 | void |
|
|
2346 | ev_idle_start (EV_P_ ev_idle *w) |
|
|
2347 | { |
|
|
2348 | if (expect_false (ev_is_active (w))) |
|
|
2349 | return; |
|
|
2350 | |
|
|
2351 | pri_adjust (EV_A_ (W)w); |
|
|
2352 | |
|
|
2353 | { |
|
|
2354 | int active = ++idlecnt [ABSPRI (w)]; |
|
|
2355 | |
|
|
2356 | ++idleall; |
|
|
2357 | ev_start (EV_A_ (W)w, active); |
|
|
2358 | |
|
|
2359 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
|
|
2360 | idles [ABSPRI (w)][active - 1] = w; |
|
|
2361 | } |
|
|
2362 | } |
|
|
2363 | |
|
|
2364 | void |
|
|
2365 | ev_idle_stop (EV_P_ ev_idle *w) |
|
|
2366 | { |
|
|
2367 | clear_pending (EV_A_ (W)w); |
|
|
2368 | if (expect_false (!ev_is_active (w))) |
|
|
2369 | return; |
|
|
2370 | |
|
|
2371 | { |
|
|
2372 | int active = ((W)w)->active; |
|
|
2373 | |
|
|
2374 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
|
|
2375 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
|
|
2376 | |
|
|
2377 | ev_stop (EV_A_ (W)w); |
|
|
2378 | --idleall; |
|
|
2379 | } |
|
|
2380 | } |
|
|
2381 | #endif |
|
|
2382 | |
|
|
2383 | void |
|
|
2384 | ev_prepare_start (EV_P_ ev_prepare *w) |
|
|
2385 | { |
|
|
2386 | if (expect_false (ev_is_active (w))) |
|
|
2387 | return; |
|
|
2388 | |
|
|
2389 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
2390 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
|
|
2391 | prepares [preparecnt - 1] = w; |
|
|
2392 | } |
|
|
2393 | |
|
|
2394 | void |
|
|
2395 | ev_prepare_stop (EV_P_ ev_prepare *w) |
|
|
2396 | { |
|
|
2397 | clear_pending (EV_A_ (W)w); |
|
|
2398 | if (expect_false (!ev_is_active (w))) |
|
|
2399 | return; |
|
|
2400 | |
|
|
2401 | { |
|
|
2402 | int active = ((W)w)->active; |
|
|
2403 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
2404 | ((W)prepares [active - 1])->active = active; |
|
|
2405 | } |
|
|
2406 | |
|
|
2407 | ev_stop (EV_A_ (W)w); |
|
|
2408 | } |
|
|
2409 | |
|
|
2410 | void |
|
|
2411 | ev_check_start (EV_P_ ev_check *w) |
|
|
2412 | { |
|
|
2413 | if (expect_false (ev_is_active (w))) |
|
|
2414 | return; |
|
|
2415 | |
|
|
2416 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
2417 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
|
|
2418 | checks [checkcnt - 1] = w; |
|
|
2419 | } |
|
|
2420 | |
|
|
2421 | void |
|
|
2422 | ev_check_stop (EV_P_ ev_check *w) |
|
|
2423 | { |
|
|
2424 | clear_pending (EV_A_ (W)w); |
|
|
2425 | if (expect_false (!ev_is_active (w))) |
|
|
2426 | return; |
|
|
2427 | |
|
|
2428 | { |
|
|
2429 | int active = ((W)w)->active; |
|
|
2430 | checks [active - 1] = checks [--checkcnt]; |
|
|
2431 | ((W)checks [active - 1])->active = active; |
|
|
2432 | } |
|
|
2433 | |
|
|
2434 | ev_stop (EV_A_ (W)w); |
|
|
2435 | } |
|
|
2436 | |
|
|
2437 | #if EV_EMBED_ENABLE |
|
|
2438 | void noinline |
|
|
2439 | ev_embed_sweep (EV_P_ ev_embed *w) |
|
|
2440 | { |
|
|
2441 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2442 | } |
|
|
2443 | |
|
|
2444 | static void |
|
|
2445 | embed_io_cb (EV_P_ ev_io *io, int revents) |
|
|
2446 | { |
|
|
2447 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
|
|
2448 | |
|
|
2449 | if (ev_cb (w)) |
|
|
2450 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
|
|
2451 | else |
|
|
2452 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2453 | } |
|
|
2454 | |
|
|
2455 | static void |
|
|
2456 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
2457 | { |
|
|
2458 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
2459 | |
|
|
2460 | { |
|
|
2461 | struct ev_loop *loop = w->other; |
|
|
2462 | |
|
|
2463 | while (fdchangecnt) |
|
|
2464 | { |
|
|
2465 | fd_reify (EV_A); |
|
|
2466 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2467 | } |
|
|
2468 | } |
|
|
2469 | } |
|
|
2470 | |
|
|
2471 | #if 0 |
|
|
2472 | static void |
|
|
2473 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
2474 | { |
|
|
2475 | ev_idle_stop (EV_A_ idle); |
|
|
2476 | } |
|
|
2477 | #endif |
|
|
2478 | |
|
|
2479 | void |
|
|
2480 | ev_embed_start (EV_P_ ev_embed *w) |
|
|
2481 | { |
|
|
2482 | if (expect_false (ev_is_active (w))) |
|
|
2483 | return; |
|
|
2484 | |
|
|
2485 | { |
|
|
2486 | struct ev_loop *loop = w->other; |
|
|
2487 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
|
|
2488 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
|
|
2489 | } |
|
|
2490 | |
|
|
2491 | ev_set_priority (&w->io, ev_priority (w)); |
|
|
2492 | ev_io_start (EV_A_ &w->io); |
|
|
2493 | |
|
|
2494 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
2495 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
2496 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
2497 | |
|
|
2498 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
2499 | |
|
|
2500 | ev_start (EV_A_ (W)w, 1); |
|
|
2501 | } |
|
|
2502 | |
|
|
2503 | void |
|
|
2504 | ev_embed_stop (EV_P_ ev_embed *w) |
|
|
2505 | { |
|
|
2506 | clear_pending (EV_A_ (W)w); |
|
|
2507 | if (expect_false (!ev_is_active (w))) |
|
|
2508 | return; |
|
|
2509 | |
|
|
2510 | ev_io_stop (EV_A_ &w->io); |
|
|
2511 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
2512 | |
|
|
2513 | ev_stop (EV_A_ (W)w); |
|
|
2514 | } |
|
|
2515 | #endif |
|
|
2516 | |
|
|
2517 | #if EV_FORK_ENABLE |
|
|
2518 | void |
|
|
2519 | ev_fork_start (EV_P_ ev_fork *w) |
|
|
2520 | { |
|
|
2521 | if (expect_false (ev_is_active (w))) |
|
|
2522 | return; |
|
|
2523 | |
|
|
2524 | ev_start (EV_A_ (W)w, ++forkcnt); |
|
|
2525 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
|
|
2526 | forks [forkcnt - 1] = w; |
|
|
2527 | } |
|
|
2528 | |
|
|
2529 | void |
|
|
2530 | ev_fork_stop (EV_P_ ev_fork *w) |
|
|
2531 | { |
|
|
2532 | clear_pending (EV_A_ (W)w); |
|
|
2533 | if (expect_false (!ev_is_active (w))) |
|
|
2534 | return; |
|
|
2535 | |
|
|
2536 | { |
|
|
2537 | int active = ((W)w)->active; |
|
|
2538 | forks [active - 1] = forks [--forkcnt]; |
|
|
2539 | ((W)forks [active - 1])->active = active; |
|
|
2540 | } |
|
|
2541 | |
|
|
2542 | ev_stop (EV_A_ (W)w); |
|
|
2543 | } |
|
|
2544 | #endif |
|
|
2545 | |
|
|
2546 | #if EV_ASYNC_ENABLE |
|
|
2547 | void |
|
|
2548 | ev_async_start (EV_P_ ev_async *w) |
|
|
2549 | { |
|
|
2550 | if (expect_false (ev_is_active (w))) |
|
|
2551 | return; |
|
|
2552 | |
|
|
2553 | evpipe_init (EV_A); |
|
|
2554 | |
|
|
2555 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
2556 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
2557 | asyncs [asynccnt - 1] = w; |
|
|
2558 | } |
|
|
2559 | |
|
|
2560 | void |
|
|
2561 | ev_async_stop (EV_P_ ev_async *w) |
|
|
2562 | { |
|
|
2563 | clear_pending (EV_A_ (W)w); |
|
|
2564 | if (expect_false (!ev_is_active (w))) |
|
|
2565 | return; |
|
|
2566 | |
|
|
2567 | { |
|
|
2568 | int active = ((W)w)->active; |
|
|
2569 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
2570 | ((W)asyncs [active - 1])->active = active; |
|
|
2571 | } |
|
|
2572 | |
|
|
2573 | ev_stop (EV_A_ (W)w); |
|
|
2574 | } |
|
|
2575 | |
|
|
2576 | void |
|
|
2577 | ev_async_send (EV_P_ ev_async *w) |
|
|
2578 | { |
|
|
2579 | w->sent = 1; |
|
|
2580 | evpipe_write (EV_A_ &gotasync); |
|
|
2581 | } |
|
|
2582 | #endif |
|
|
2583 | |
684 | /*****************************************************************************/ |
2584 | /*****************************************************************************/ |
685 | #if 1 |
2585 | |
|
|
2586 | struct ev_once |
|
|
2587 | { |
|
|
2588 | ev_io io; |
|
|
2589 | ev_timer to; |
|
|
2590 | void (*cb)(int revents, void *arg); |
|
|
2591 | void *arg; |
|
|
2592 | }; |
686 | |
2593 | |
687 | static void |
2594 | static void |
688 | sin_cb (struct ev_io *w, int revents) |
2595 | once_cb (EV_P_ struct ev_once *once, int revents) |
689 | { |
2596 | { |
690 | fprintf (stderr, "sin %d, revents %d\n", w->fd, revents); |
2597 | void (*cb)(int revents, void *arg) = once->cb; |
|
|
2598 | void *arg = once->arg; |
|
|
2599 | |
|
|
2600 | ev_io_stop (EV_A_ &once->io); |
|
|
2601 | ev_timer_stop (EV_A_ &once->to); |
|
|
2602 | ev_free (once); |
|
|
2603 | |
|
|
2604 | cb (revents, arg); |
691 | } |
2605 | } |
692 | |
2606 | |
693 | static void |
2607 | static void |
694 | ocb (struct ev_timer *w, int revents) |
2608 | once_cb_io (EV_P_ ev_io *w, int revents) |
695 | { |
2609 | { |
696 | //fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data); |
2610 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
697 | evtimer_stop (w); |
|
|
698 | evtimer_start (w); |
|
|
699 | } |
2611 | } |
700 | |
2612 | |
701 | static void |
2613 | static void |
702 | scb (struct ev_signal *w, int revents) |
2614 | once_cb_to (EV_P_ ev_timer *w, int revents) |
703 | { |
2615 | { |
704 | fprintf (stderr, "signal %x,%d\n", revents, w->signum); |
2616 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
705 | } |
2617 | } |
706 | |
2618 | |
707 | int main (void) |
2619 | void |
|
|
2620 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
708 | { |
2621 | { |
709 | struct ev_io sin; |
2622 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
710 | |
2623 | |
711 | ev_init (0); |
2624 | if (expect_false (!once)) |
712 | |
|
|
713 | evw_init (&sin, sin_cb, 55); |
|
|
714 | evio_set (&sin, 0, EV_READ); |
|
|
715 | evio_start (&sin); |
|
|
716 | |
|
|
717 | struct ev_timer t[10000]; |
|
|
718 | |
|
|
719 | #if 1 |
|
|
720 | int i; |
|
|
721 | for (i = 0; i < 10000; ++i) |
|
|
722 | { |
|
|
723 | struct ev_timer *w = t + i; |
|
|
724 | evw_init (w, ocb, i); |
|
|
725 | evtimer_set_abs (w, drand48 (), 0.99775533); |
|
|
726 | evtimer_start (w); |
|
|
727 | if (drand48 () < 0.5) |
|
|
728 | evtimer_stop (w); |
|
|
729 | } |
2625 | { |
730 | #endif |
2626 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
731 | |
|
|
732 | struct ev_timer t1; |
|
|
733 | evw_init (&t1, ocb, 0); |
|
|
734 | evtimer_set_abs (&t1, 5, 10); |
|
|
735 | evtimer_start (&t1); |
|
|
736 | |
|
|
737 | struct ev_signal sig; |
|
|
738 | evw_init (&sig, scb, 65535); |
|
|
739 | evsignal_set (&sig, SIGQUIT); |
|
|
740 | evsignal_start (&sig); |
|
|
741 | |
|
|
742 | ev_loop (0); |
|
|
743 | |
|
|
744 | return 0; |
2627 | return; |
745 | } |
2628 | } |
746 | |
2629 | |
747 | #endif |
2630 | once->cb = cb; |
|
|
2631 | once->arg = arg; |
748 | |
2632 | |
|
|
2633 | ev_init (&once->io, once_cb_io); |
|
|
2634 | if (fd >= 0) |
|
|
2635 | { |
|
|
2636 | ev_io_set (&once->io, fd, events); |
|
|
2637 | ev_io_start (EV_A_ &once->io); |
|
|
2638 | } |
749 | |
2639 | |
|
|
2640 | ev_init (&once->to, once_cb_to); |
|
|
2641 | if (timeout >= 0.) |
|
|
2642 | { |
|
|
2643 | ev_timer_set (&once->to, timeout, 0.); |
|
|
2644 | ev_timer_start (EV_A_ &once->to); |
|
|
2645 | } |
|
|
2646 | } |
750 | |
2647 | |
|
|
2648 | #if EV_MULTIPLICITY |
|
|
2649 | #include "ev_wrap.h" |
|
|
2650 | #endif |
751 | |
2651 | |
|
|
2652 | #ifdef __cplusplus |
|
|
2653 | } |
|
|
2654 | #endif |
|
|
2655 | |