1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * modification, are permitted provided that the following conditions are |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * met: |
9 | * |
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10 | * 1. Redistributions of source code must retain the above copyright notice, |
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11 | * this list of conditions and the following disclaimer. |
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12 | * |
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13 | * 2. Redistributions in binary form must reproduce the above copyright |
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14 | * notice, this list of conditions and the following disclaimer in the |
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15 | * documentation and/or other materials provided with the distribution. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
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18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
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19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
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20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
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21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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22 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
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23 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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24 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
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25 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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26 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
10 | * |
27 | * |
11 | * * Redistributions of source code must retain the above copyright |
28 | * Alternatively, the contents of this file may be used under the terms of |
12 | * notice, this list of conditions and the following disclaimer. |
29 | * the GNU General Public License ("GPL") version 2 or any later version, |
13 | * |
30 | * in which case the provisions of the GPL are applicable instead of |
14 | * * Redistributions in binary form must reproduce the above |
31 | * the above. If you wish to allow the use of your version of this file |
15 | * copyright notice, this list of conditions and the following |
32 | * only under the terms of the GPL and not to allow others to use your |
16 | * disclaimer in the documentation and/or other materials provided |
33 | * version of this file under the BSD license, indicate your decision |
17 | * with the distribution. |
34 | * by deleting the provisions above and replace them with the notice |
18 | * |
35 | * and other provisions required by the GPL. If you do not delete the |
19 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
36 | * provisions above, a recipient may use your version of this file under |
20 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
37 | * either the BSD or the GPL. |
21 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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22 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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23 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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24 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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25 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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30 | */ |
38 | */ |
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39 | |
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40 | #ifdef __cplusplus |
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41 | extern "C" { |
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42 | #endif |
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43 | |
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44 | /* this big block deduces configuration from config.h */ |
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45 | #ifndef EV_STANDALONE |
31 | #if EV_USE_CONFIG_H |
46 | # ifdef EV_CONFIG_H |
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47 | # include EV_CONFIG_H |
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48 | # else |
32 | # include "config.h" |
49 | # include "config.h" |
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50 | # endif |
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51 | |
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52 | # if HAVE_CLOCK_SYSCALL |
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53 | # ifndef EV_USE_CLOCK_SYSCALL |
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54 | # define EV_USE_CLOCK_SYSCALL 1 |
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55 | # ifndef EV_USE_REALTIME |
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56 | # define EV_USE_REALTIME 0 |
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57 | # endif |
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58 | # ifndef EV_USE_MONOTONIC |
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59 | # define EV_USE_MONOTONIC 1 |
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60 | # endif |
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61 | # endif |
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62 | # endif |
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63 | |
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64 | # if HAVE_CLOCK_GETTIME |
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65 | # ifndef EV_USE_MONOTONIC |
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66 | # define EV_USE_MONOTONIC 1 |
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67 | # endif |
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68 | # ifndef EV_USE_REALTIME |
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69 | # define EV_USE_REALTIME 1 |
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70 | # endif |
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71 | # else |
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72 | # ifndef EV_USE_MONOTONIC |
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73 | # define EV_USE_MONOTONIC 0 |
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74 | # endif |
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75 | # ifndef EV_USE_REALTIME |
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76 | # define EV_USE_REALTIME 0 |
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77 | # endif |
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78 | # endif |
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79 | |
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80 | # ifndef EV_USE_NANOSLEEP |
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81 | # if HAVE_NANOSLEEP |
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82 | # define EV_USE_NANOSLEEP 1 |
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83 | # else |
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84 | # define EV_USE_NANOSLEEP 0 |
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85 | # endif |
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86 | # endif |
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87 | |
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88 | # ifndef EV_USE_SELECT |
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89 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
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90 | # define EV_USE_SELECT 1 |
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91 | # else |
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92 | # define EV_USE_SELECT 0 |
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93 | # endif |
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94 | # endif |
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95 | |
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96 | # ifndef EV_USE_POLL |
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97 | # if HAVE_POLL && HAVE_POLL_H |
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98 | # define EV_USE_POLL 1 |
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99 | # else |
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100 | # define EV_USE_POLL 0 |
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101 | # endif |
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102 | # endif |
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103 | |
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104 | # ifndef EV_USE_EPOLL |
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105 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
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106 | # define EV_USE_EPOLL 1 |
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107 | # else |
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108 | # define EV_USE_EPOLL 0 |
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109 | # endif |
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110 | # endif |
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111 | |
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112 | # ifndef EV_USE_KQUEUE |
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113 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
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114 | # define EV_USE_KQUEUE 1 |
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115 | # else |
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116 | # define EV_USE_KQUEUE 0 |
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117 | # endif |
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118 | # endif |
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119 | |
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120 | # ifndef EV_USE_PORT |
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121 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
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122 | # define EV_USE_PORT 1 |
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123 | # else |
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124 | # define EV_USE_PORT 0 |
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125 | # endif |
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126 | # endif |
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127 | |
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128 | # ifndef EV_USE_INOTIFY |
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129 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
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130 | # define EV_USE_INOTIFY 1 |
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131 | # else |
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132 | # define EV_USE_INOTIFY 0 |
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133 | # endif |
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134 | # endif |
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135 | |
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136 | # ifndef EV_USE_EVENTFD |
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137 | # if HAVE_EVENTFD |
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138 | # define EV_USE_EVENTFD 1 |
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139 | # else |
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140 | # define EV_USE_EVENTFD 0 |
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141 | # endif |
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142 | # endif |
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143 | |
33 | #endif |
144 | #endif |
34 | |
145 | |
35 | #include <math.h> |
146 | #include <math.h> |
36 | #include <stdlib.h> |
147 | #include <stdlib.h> |
37 | #include <unistd.h> |
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38 | #include <fcntl.h> |
148 | #include <fcntl.h> |
39 | #include <signal.h> |
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40 | #include <stddef.h> |
149 | #include <stddef.h> |
41 | |
150 | |
42 | #include <stdio.h> |
151 | #include <stdio.h> |
43 | |
152 | |
44 | #include <assert.h> |
153 | #include <assert.h> |
45 | #include <errno.h> |
154 | #include <errno.h> |
46 | #include <sys/types.h> |
155 | #include <sys/types.h> |
47 | #include <sys/wait.h> |
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48 | #include <sys/time.h> |
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49 | #include <time.h> |
156 | #include <time.h> |
50 | |
157 | |
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158 | #include <signal.h> |
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159 | |
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160 | #ifdef EV_H |
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161 | # include EV_H |
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162 | #else |
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163 | # include "ev.h" |
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164 | #endif |
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165 | |
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166 | #ifndef _WIN32 |
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167 | # include <sys/time.h> |
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168 | # include <sys/wait.h> |
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169 | # include <unistd.h> |
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170 | #else |
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171 | # include <io.h> |
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172 | # define WIN32_LEAN_AND_MEAN |
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173 | # include <windows.h> |
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174 | # ifndef EV_SELECT_IS_WINSOCKET |
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175 | # define EV_SELECT_IS_WINSOCKET 1 |
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176 | # endif |
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177 | #endif |
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178 | |
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179 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
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180 | |
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181 | #ifndef EV_USE_CLOCK_SYSCALL |
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182 | # if __linux && __GLIBC__ >= 2 |
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183 | # define EV_USE_CLOCK_SYSCALL 1 |
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184 | # else |
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185 | # define EV_USE_CLOCK_SYSCALL 0 |
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186 | # endif |
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187 | #endif |
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188 | |
51 | #ifndef EV_USE_MONOTONIC |
189 | #ifndef EV_USE_MONOTONIC |
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190 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
52 | # define EV_USE_MONOTONIC 1 |
191 | # define EV_USE_MONOTONIC 1 |
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192 | # else |
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193 | # define EV_USE_MONOTONIC 0 |
53 | #endif |
194 | # endif |
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195 | #endif |
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196 | |
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197 | #ifndef EV_USE_REALTIME |
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198 | # define EV_USE_REALTIME 0 |
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199 | #endif |
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200 | |
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201 | #ifndef EV_USE_NANOSLEEP |
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202 | # if _POSIX_C_SOURCE >= 199309L |
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203 | # define EV_USE_NANOSLEEP 1 |
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204 | # else |
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205 | # define EV_USE_NANOSLEEP 0 |
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206 | # endif |
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207 | #endif |
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208 | |
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209 | #ifndef EV_USE_SELECT |
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210 | # define EV_USE_SELECT 1 |
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211 | #endif |
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212 | |
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213 | #ifndef EV_USE_POLL |
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214 | # ifdef _WIN32 |
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215 | # define EV_USE_POLL 0 |
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216 | # else |
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217 | # define EV_USE_POLL 1 |
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218 | # endif |
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219 | #endif |
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220 | |
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221 | #ifndef EV_USE_EPOLL |
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222 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
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223 | # define EV_USE_EPOLL 1 |
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224 | # else |
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225 | # define EV_USE_EPOLL 0 |
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226 | # endif |
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227 | #endif |
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228 | |
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229 | #ifndef EV_USE_KQUEUE |
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230 | # define EV_USE_KQUEUE 0 |
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231 | #endif |
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232 | |
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233 | #ifndef EV_USE_PORT |
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234 | # define EV_USE_PORT 0 |
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235 | #endif |
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236 | |
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237 | #ifndef EV_USE_INOTIFY |
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238 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
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239 | # define EV_USE_INOTIFY 1 |
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240 | # else |
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241 | # define EV_USE_INOTIFY 0 |
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242 | # endif |
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243 | #endif |
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244 | |
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245 | #ifndef EV_PID_HASHSIZE |
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246 | # if EV_MINIMAL |
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247 | # define EV_PID_HASHSIZE 1 |
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248 | # else |
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249 | # define EV_PID_HASHSIZE 16 |
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250 | # endif |
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251 | #endif |
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252 | |
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253 | #ifndef EV_INOTIFY_HASHSIZE |
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254 | # if EV_MINIMAL |
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255 | # define EV_INOTIFY_HASHSIZE 1 |
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256 | # else |
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257 | # define EV_INOTIFY_HASHSIZE 16 |
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258 | # endif |
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259 | #endif |
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260 | |
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261 | #ifndef EV_USE_EVENTFD |
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262 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
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263 | # define EV_USE_EVENTFD 1 |
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264 | # else |
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265 | # define EV_USE_EVENTFD 0 |
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266 | # endif |
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267 | #endif |
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268 | |
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269 | #if 0 /* debugging */ |
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270 | # define EV_VERIFY 3 |
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271 | # define EV_USE_4HEAP 1 |
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272 | # define EV_HEAP_CACHE_AT 1 |
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273 | #endif |
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274 | |
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275 | #ifndef EV_VERIFY |
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276 | # define EV_VERIFY !EV_MINIMAL |
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277 | #endif |
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278 | |
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279 | #ifndef EV_USE_4HEAP |
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280 | # define EV_USE_4HEAP !EV_MINIMAL |
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281 | #endif |
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282 | |
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283 | #ifndef EV_HEAP_CACHE_AT |
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284 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
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285 | #endif |
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286 | |
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287 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
54 | |
288 | |
55 | #ifndef CLOCK_MONOTONIC |
289 | #ifndef CLOCK_MONOTONIC |
56 | # undef EV_USE_MONOTONIC |
290 | # undef EV_USE_MONOTONIC |
57 | # define EV_USE_MONOTONIC 0 |
291 | # define EV_USE_MONOTONIC 0 |
58 | #endif |
292 | #endif |
59 | |
293 | |
60 | #ifndef EV_USE_SELECT |
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61 | # define EV_USE_SELECT 1 |
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62 | #endif |
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63 | |
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64 | #ifndef EV_USE_EPOLL |
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65 | # define EV_USE_EPOLL 0 |
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66 | #endif |
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67 | |
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68 | #ifndef CLOCK_REALTIME |
294 | #ifndef CLOCK_REALTIME |
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295 | # undef EV_USE_REALTIME |
69 | # define EV_USE_REALTIME 0 |
296 | # define EV_USE_REALTIME 0 |
70 | #endif |
297 | #endif |
71 | #ifndef EV_USE_REALTIME |
298 | |
72 | # define EV_USE_REALTIME 1 /* posix requirement, but might be slower */ |
299 | #if !EV_STAT_ENABLE |
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300 | # undef EV_USE_INOTIFY |
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301 | # define EV_USE_INOTIFY 0 |
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302 | #endif |
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303 | |
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304 | #if !EV_USE_NANOSLEEP |
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305 | # ifndef _WIN32 |
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306 | # include <sys/select.h> |
73 | #endif |
307 | # endif |
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308 | #endif |
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309 | |
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310 | #if EV_USE_INOTIFY |
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311 | # include <sys/utsname.h> |
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312 | # include <sys/statfs.h> |
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313 | # include <sys/inotify.h> |
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314 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
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315 | # ifndef IN_DONT_FOLLOW |
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316 | # undef EV_USE_INOTIFY |
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317 | # define EV_USE_INOTIFY 0 |
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318 | # endif |
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319 | #endif |
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320 | |
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321 | #if EV_SELECT_IS_WINSOCKET |
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322 | # include <winsock.h> |
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323 | #endif |
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324 | |
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325 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
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326 | /* which makes programs even slower. might work on other unices, too. */ |
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327 | #if EV_USE_CLOCK_SYSCALL |
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328 | # include <syscall.h> |
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329 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
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330 | # undef EV_USE_MONOTONIC |
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331 | # define EV_USE_MONOTONIC 1 |
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332 | #endif |
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333 | |
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334 | #if EV_USE_EVENTFD |
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335 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
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336 | # include <stdint.h> |
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337 | # ifdef __cplusplus |
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338 | extern "C" { |
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339 | # endif |
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340 | int eventfd (unsigned int initval, int flags); |
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341 | # ifdef __cplusplus |
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342 | } |
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343 | # endif |
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344 | #endif |
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345 | |
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346 | /**/ |
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347 | |
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348 | #if EV_VERIFY >= 3 |
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349 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
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350 | #else |
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351 | # define EV_FREQUENT_CHECK do { } while (0) |
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352 | #endif |
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353 | |
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354 | /* |
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355 | * This is used to avoid floating point rounding problems. |
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356 | * It is added to ev_rt_now when scheduling periodics |
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357 | * to ensure progress, time-wise, even when rounding |
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358 | * errors are against us. |
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359 | * This value is good at least till the year 4000. |
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360 | * Better solutions welcome. |
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361 | */ |
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362 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
74 | |
363 | |
75 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
364 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
76 | #define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detetc time jumps) */ |
365 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
77 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
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78 | #define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */ |
366 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
79 | |
367 | |
80 | #include "ev.h" |
368 | #if __GNUC__ >= 4 |
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369 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
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370 | # define noinline __attribute__ ((noinline)) |
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371 | #else |
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372 | # define expect(expr,value) (expr) |
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373 | # define noinline |
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374 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
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375 | # define inline |
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376 | # endif |
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377 | #endif |
81 | |
378 | |
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379 | #define expect_false(expr) expect ((expr) != 0, 0) |
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380 | #define expect_true(expr) expect ((expr) != 0, 1) |
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381 | #define inline_size static inline |
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382 | |
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383 | #if EV_MINIMAL |
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384 | # define inline_speed static noinline |
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385 | #else |
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386 | # define inline_speed static inline |
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387 | #endif |
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388 | |
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389 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
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390 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
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391 | |
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392 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
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393 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
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394 | |
82 | typedef struct ev_watcher *W; |
395 | typedef ev_watcher *W; |
83 | typedef struct ev_watcher_list *WL; |
396 | typedef ev_watcher_list *WL; |
84 | typedef struct ev_watcher_time *WT; |
397 | typedef ev_watcher_time *WT; |
85 | |
398 | |
86 | static ev_tstamp now, diff; /* monotonic clock */ |
399 | #define ev_active(w) ((W)(w))->active |
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400 | #define ev_at(w) ((WT)(w))->at |
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401 | |
|
|
402 | #if EV_USE_MONOTONIC |
|
|
403 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
404 | /* giving it a reasonably high chance of working on typical architetcures */ |
|
|
405 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
406 | #endif |
|
|
407 | |
|
|
408 | #ifdef _WIN32 |
|
|
409 | # include "ev_win32.c" |
|
|
410 | #endif |
|
|
411 | |
|
|
412 | /*****************************************************************************/ |
|
|
413 | |
|
|
414 | static void (*syserr_cb)(const char *msg); |
|
|
415 | |
|
|
416 | void |
|
|
417 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
|
|
418 | { |
|
|
419 | syserr_cb = cb; |
|
|
420 | } |
|
|
421 | |
|
|
422 | static void noinline |
|
|
423 | ev_syserr (const char *msg) |
|
|
424 | { |
|
|
425 | if (!msg) |
|
|
426 | msg = "(libev) system error"; |
|
|
427 | |
|
|
428 | if (syserr_cb) |
|
|
429 | syserr_cb (msg); |
|
|
430 | else |
|
|
431 | { |
|
|
432 | perror (msg); |
|
|
433 | abort (); |
|
|
434 | } |
|
|
435 | } |
|
|
436 | |
|
|
437 | static void * |
|
|
438 | ev_realloc_emul (void *ptr, long size) |
|
|
439 | { |
|
|
440 | /* some systems, notably openbsd and darwin, fail to properly |
|
|
441 | * implement realloc (x, 0) (as required by both ansi c-98 and |
|
|
442 | * the single unix specification, so work around them here. |
|
|
443 | */ |
|
|
444 | |
|
|
445 | if (size) |
|
|
446 | return realloc (ptr, size); |
|
|
447 | |
|
|
448 | free (ptr); |
|
|
449 | return 0; |
|
|
450 | } |
|
|
451 | |
|
|
452 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
|
|
453 | |
|
|
454 | void |
|
|
455 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
|
|
456 | { |
|
|
457 | alloc = cb; |
|
|
458 | } |
|
|
459 | |
|
|
460 | inline_speed void * |
|
|
461 | ev_realloc (void *ptr, long size) |
|
|
462 | { |
|
|
463 | ptr = alloc (ptr, size); |
|
|
464 | |
|
|
465 | if (!ptr && size) |
|
|
466 | { |
|
|
467 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
468 | abort (); |
|
|
469 | } |
|
|
470 | |
|
|
471 | return ptr; |
|
|
472 | } |
|
|
473 | |
|
|
474 | #define ev_malloc(size) ev_realloc (0, (size)) |
|
|
475 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
|
|
476 | |
|
|
477 | /*****************************************************************************/ |
|
|
478 | |
|
|
479 | typedef struct |
|
|
480 | { |
|
|
481 | WL head; |
|
|
482 | unsigned char events; |
|
|
483 | unsigned char reify; |
|
|
484 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
|
|
485 | unsigned char unused; |
|
|
486 | #if EV_USE_EPOLL |
|
|
487 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
488 | #endif |
|
|
489 | #if EV_SELECT_IS_WINSOCKET |
|
|
490 | SOCKET handle; |
|
|
491 | #endif |
|
|
492 | } ANFD; |
|
|
493 | |
|
|
494 | typedef struct |
|
|
495 | { |
|
|
496 | W w; |
|
|
497 | int events; |
|
|
498 | } ANPENDING; |
|
|
499 | |
|
|
500 | #if EV_USE_INOTIFY |
|
|
501 | /* hash table entry per inotify-id */ |
|
|
502 | typedef struct |
|
|
503 | { |
|
|
504 | WL head; |
|
|
505 | } ANFS; |
|
|
506 | #endif |
|
|
507 | |
|
|
508 | /* Heap Entry */ |
|
|
509 | #if EV_HEAP_CACHE_AT |
|
|
510 | typedef struct { |
|
|
511 | ev_tstamp at; |
|
|
512 | WT w; |
|
|
513 | } ANHE; |
|
|
514 | |
|
|
515 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
|
|
516 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
|
517 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
518 | #else |
|
|
519 | typedef WT ANHE; |
|
|
520 | |
|
|
521 | #define ANHE_w(he) (he) |
|
|
522 | #define ANHE_at(he) (he)->at |
|
|
523 | #define ANHE_at_cache(he) |
|
|
524 | #endif |
|
|
525 | |
|
|
526 | #if EV_MULTIPLICITY |
|
|
527 | |
|
|
528 | struct ev_loop |
|
|
529 | { |
|
|
530 | ev_tstamp ev_rt_now; |
|
|
531 | #define ev_rt_now ((loop)->ev_rt_now) |
|
|
532 | #define VAR(name,decl) decl; |
|
|
533 | #include "ev_vars.h" |
|
|
534 | #undef VAR |
|
|
535 | }; |
|
|
536 | #include "ev_wrap.h" |
|
|
537 | |
|
|
538 | static struct ev_loop default_loop_struct; |
|
|
539 | struct ev_loop *ev_default_loop_ptr; |
|
|
540 | |
|
|
541 | #else |
|
|
542 | |
87 | ev_tstamp ev_now; |
543 | ev_tstamp ev_rt_now; |
88 | int ev_method; |
544 | #define VAR(name,decl) static decl; |
|
|
545 | #include "ev_vars.h" |
|
|
546 | #undef VAR |
89 | |
547 | |
90 | static int have_monotonic; /* runtime */ |
548 | static int ev_default_loop_ptr; |
91 | |
549 | |
92 | static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */ |
550 | #endif |
93 | static void (*method_modify)(int fd, int oev, int nev); |
|
|
94 | static void (*method_poll)(ev_tstamp timeout); |
|
|
95 | |
551 | |
96 | /*****************************************************************************/ |
552 | /*****************************************************************************/ |
97 | |
553 | |
98 | ev_tstamp |
554 | ev_tstamp |
99 | ev_time (void) |
555 | ev_time (void) |
… | |
… | |
107 | gettimeofday (&tv, 0); |
563 | gettimeofday (&tv, 0); |
108 | return tv.tv_sec + tv.tv_usec * 1e-6; |
564 | return tv.tv_sec + tv.tv_usec * 1e-6; |
109 | #endif |
565 | #endif |
110 | } |
566 | } |
111 | |
567 | |
112 | static ev_tstamp |
568 | ev_tstamp inline_size |
113 | get_clock (void) |
569 | get_clock (void) |
114 | { |
570 | { |
115 | #if EV_USE_MONOTONIC |
571 | #if EV_USE_MONOTONIC |
116 | if (have_monotonic) |
572 | if (expect_true (have_monotonic)) |
117 | { |
573 | { |
118 | struct timespec ts; |
574 | struct timespec ts; |
119 | clock_gettime (CLOCK_MONOTONIC, &ts); |
575 | clock_gettime (CLOCK_MONOTONIC, &ts); |
120 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
576 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
121 | } |
577 | } |
122 | #endif |
578 | #endif |
123 | |
579 | |
124 | return ev_time (); |
580 | return ev_time (); |
125 | } |
581 | } |
126 | |
582 | |
127 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
583 | #if EV_MULTIPLICITY |
|
|
584 | ev_tstamp |
|
|
585 | ev_now (EV_P) |
|
|
586 | { |
|
|
587 | return ev_rt_now; |
|
|
588 | } |
|
|
589 | #endif |
128 | |
590 | |
129 | #define array_needsize(base,cur,cnt,init) \ |
591 | void |
130 | if ((cnt) > cur) \ |
592 | ev_sleep (ev_tstamp delay) |
131 | { \ |
593 | { |
132 | int newcnt = cur; \ |
594 | if (delay > 0.) |
133 | do \ |
|
|
134 | { \ |
|
|
135 | newcnt = array_roundsize (base, newcnt << 1); \ |
|
|
136 | } \ |
|
|
137 | while ((cnt) > newcnt); \ |
|
|
138 | \ |
|
|
139 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
|
|
140 | init (base + cur, newcnt - cur); \ |
|
|
141 | cur = newcnt; \ |
|
|
142 | } |
595 | { |
|
|
596 | #if EV_USE_NANOSLEEP |
|
|
597 | struct timespec ts; |
|
|
598 | |
|
|
599 | ts.tv_sec = (time_t)delay; |
|
|
600 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
601 | |
|
|
602 | nanosleep (&ts, 0); |
|
|
603 | #elif defined(_WIN32) |
|
|
604 | Sleep ((unsigned long)(delay * 1e3)); |
|
|
605 | #else |
|
|
606 | struct timeval tv; |
|
|
607 | |
|
|
608 | tv.tv_sec = (time_t)delay; |
|
|
609 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
610 | |
|
|
611 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
|
|
612 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
|
|
613 | /* by older ones */ |
|
|
614 | select (0, 0, 0, 0, &tv); |
|
|
615 | #endif |
|
|
616 | } |
|
|
617 | } |
143 | |
618 | |
144 | /*****************************************************************************/ |
619 | /*****************************************************************************/ |
145 | |
620 | |
146 | typedef struct |
621 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
147 | { |
|
|
148 | struct ev_io *head; |
|
|
149 | unsigned char events; |
|
|
150 | unsigned char reify; |
|
|
151 | } ANFD; |
|
|
152 | |
622 | |
153 | static ANFD *anfds; |
623 | int inline_size |
154 | static int anfdmax; |
624 | array_nextsize (int elem, int cur, int cnt) |
155 | |
|
|
156 | static void |
|
|
157 | anfds_init (ANFD *base, int count) |
|
|
158 | { |
625 | { |
159 | while (count--) |
626 | int ncur = cur + 1; |
160 | { |
|
|
161 | base->head = 0; |
|
|
162 | base->events = EV_NONE; |
|
|
163 | base->reify = 0; |
|
|
164 | |
627 | |
165 | ++base; |
628 | do |
|
|
629 | ncur <<= 1; |
|
|
630 | while (cnt > ncur); |
|
|
631 | |
|
|
632 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
|
|
633 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
166 | } |
634 | { |
167 | } |
635 | ncur *= elem; |
168 | |
636 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
169 | typedef struct |
637 | ncur = ncur - sizeof (void *) * 4; |
170 | { |
638 | ncur /= elem; |
171 | W w; |
|
|
172 | int events; |
|
|
173 | } ANPENDING; |
|
|
174 | |
|
|
175 | static ANPENDING *pendings; |
|
|
176 | static int pendingmax, pendingcnt; |
|
|
177 | |
|
|
178 | static void |
|
|
179 | event (W w, int events) |
|
|
180 | { |
|
|
181 | if (w->pending) |
|
|
182 | { |
639 | } |
|
|
640 | |
|
|
641 | return ncur; |
|
|
642 | } |
|
|
643 | |
|
|
644 | static noinline void * |
|
|
645 | array_realloc (int elem, void *base, int *cur, int cnt) |
|
|
646 | { |
|
|
647 | *cur = array_nextsize (elem, *cur, cnt); |
|
|
648 | return ev_realloc (base, elem * *cur); |
|
|
649 | } |
|
|
650 | |
|
|
651 | #define array_init_zero(base,count) \ |
|
|
652 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
|
|
653 | |
|
|
654 | #define array_needsize(type,base,cur,cnt,init) \ |
|
|
655 | if (expect_false ((cnt) > (cur))) \ |
|
|
656 | { \ |
|
|
657 | int ocur_ = (cur); \ |
|
|
658 | (base) = (type *)array_realloc \ |
|
|
659 | (sizeof (type), (base), &(cur), (cnt)); \ |
|
|
660 | init ((base) + (ocur_), (cur) - ocur_); \ |
|
|
661 | } |
|
|
662 | |
|
|
663 | #if 0 |
|
|
664 | #define array_slim(type,stem) \ |
|
|
665 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
|
|
666 | { \ |
|
|
667 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
|
|
668 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
|
|
669 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
|
|
670 | } |
|
|
671 | #endif |
|
|
672 | |
|
|
673 | #define array_free(stem, idx) \ |
|
|
674 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
|
|
675 | |
|
|
676 | /*****************************************************************************/ |
|
|
677 | |
|
|
678 | void noinline |
|
|
679 | ev_feed_event (EV_P_ void *w, int revents) |
|
|
680 | { |
|
|
681 | W w_ = (W)w; |
|
|
682 | int pri = ABSPRI (w_); |
|
|
683 | |
|
|
684 | if (expect_false (w_->pending)) |
|
|
685 | pendings [pri][w_->pending - 1].events |= revents; |
|
|
686 | else |
|
|
687 | { |
|
|
688 | w_->pending = ++pendingcnt [pri]; |
|
|
689 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
|
|
690 | pendings [pri][w_->pending - 1].w = w_; |
183 | pendings [w->pending - 1].events |= events; |
691 | pendings [pri][w_->pending - 1].events = revents; |
184 | return; |
|
|
185 | } |
692 | } |
186 | |
|
|
187 | w->pending = ++pendingcnt; |
|
|
188 | array_needsize (pendings, pendingmax, pendingcnt, ); |
|
|
189 | pendings [pendingcnt - 1].w = w; |
|
|
190 | pendings [pendingcnt - 1].events = events; |
|
|
191 | } |
693 | } |
192 | |
694 | |
193 | static void |
695 | void inline_speed |
194 | queue_events (W *events, int eventcnt, int type) |
696 | queue_events (EV_P_ W *events, int eventcnt, int type) |
195 | { |
697 | { |
196 | int i; |
698 | int i; |
197 | |
699 | |
198 | for (i = 0; i < eventcnt; ++i) |
700 | for (i = 0; i < eventcnt; ++i) |
199 | event (events [i], type); |
701 | ev_feed_event (EV_A_ events [i], type); |
200 | } |
702 | } |
201 | |
703 | |
202 | static void |
704 | /*****************************************************************************/ |
|
|
705 | |
|
|
706 | void inline_speed |
203 | fd_event (int fd, int events) |
707 | fd_event (EV_P_ int fd, int revents) |
204 | { |
708 | { |
205 | ANFD *anfd = anfds + fd; |
709 | ANFD *anfd = anfds + fd; |
206 | struct ev_io *w; |
710 | ev_io *w; |
207 | |
711 | |
208 | for (w = anfd->head; w; w = w->next) |
712 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
209 | { |
713 | { |
210 | int ev = w->events & events; |
714 | int ev = w->events & revents; |
211 | |
715 | |
212 | if (ev) |
716 | if (ev) |
213 | event ((W)w, ev); |
717 | ev_feed_event (EV_A_ (W)w, ev); |
214 | } |
718 | } |
215 | } |
719 | } |
216 | |
720 | |
217 | /*****************************************************************************/ |
721 | void |
|
|
722 | ev_feed_fd_event (EV_P_ int fd, int revents) |
|
|
723 | { |
|
|
724 | if (fd >= 0 && fd < anfdmax) |
|
|
725 | fd_event (EV_A_ fd, revents); |
|
|
726 | } |
218 | |
727 | |
219 | static int *fdchanges; |
728 | void inline_size |
220 | static int fdchangemax, fdchangecnt; |
729 | fd_reify (EV_P) |
221 | |
|
|
222 | static void |
|
|
223 | fd_reify (void) |
|
|
224 | { |
730 | { |
225 | int i; |
731 | int i; |
226 | |
732 | |
227 | for (i = 0; i < fdchangecnt; ++i) |
733 | for (i = 0; i < fdchangecnt; ++i) |
228 | { |
734 | { |
229 | int fd = fdchanges [i]; |
735 | int fd = fdchanges [i]; |
230 | ANFD *anfd = anfds + fd; |
736 | ANFD *anfd = anfds + fd; |
231 | struct ev_io *w; |
737 | ev_io *w; |
232 | |
738 | |
233 | int events = 0; |
739 | unsigned char events = 0; |
234 | |
740 | |
235 | for (w = anfd->head; w; w = w->next) |
741 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
236 | events |= w->events; |
742 | events |= (unsigned char)w->events; |
237 | |
743 | |
238 | anfd->reify = 0; |
744 | #if EV_SELECT_IS_WINSOCKET |
239 | |
745 | if (events) |
240 | if (anfd->events != events) |
|
|
241 | { |
746 | { |
242 | method_modify (fd, anfd->events, events); |
747 | unsigned long arg; |
243 | anfd->events = events; |
748 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
749 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
750 | #else |
|
|
751 | anfd->handle = _get_osfhandle (fd); |
|
|
752 | #endif |
|
|
753 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
244 | } |
754 | } |
|
|
755 | #endif |
|
|
756 | |
|
|
757 | { |
|
|
758 | unsigned char o_events = anfd->events; |
|
|
759 | unsigned char o_reify = anfd->reify; |
|
|
760 | |
|
|
761 | anfd->reify = 0; |
|
|
762 | anfd->events = events; |
|
|
763 | |
|
|
764 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
765 | backend_modify (EV_A_ fd, o_events, events); |
|
|
766 | } |
245 | } |
767 | } |
246 | |
768 | |
247 | fdchangecnt = 0; |
769 | fdchangecnt = 0; |
248 | } |
770 | } |
249 | |
771 | |
250 | static void |
772 | void inline_size |
251 | fd_change (int fd) |
773 | fd_change (EV_P_ int fd, int flags) |
252 | { |
774 | { |
253 | if (anfds [fd].reify || fdchangecnt < 0) |
775 | unsigned char reify = anfds [fd].reify; |
254 | return; |
|
|
255 | |
|
|
256 | anfds [fd].reify = 1; |
776 | anfds [fd].reify |= flags; |
257 | |
777 | |
|
|
778 | if (expect_true (!reify)) |
|
|
779 | { |
258 | ++fdchangecnt; |
780 | ++fdchangecnt; |
259 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
781 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
260 | fdchanges [fdchangecnt - 1] = fd; |
782 | fdchanges [fdchangecnt - 1] = fd; |
|
|
783 | } |
|
|
784 | } |
|
|
785 | |
|
|
786 | void inline_speed |
|
|
787 | fd_kill (EV_P_ int fd) |
|
|
788 | { |
|
|
789 | ev_io *w; |
|
|
790 | |
|
|
791 | while ((w = (ev_io *)anfds [fd].head)) |
|
|
792 | { |
|
|
793 | ev_io_stop (EV_A_ w); |
|
|
794 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
|
|
795 | } |
|
|
796 | } |
|
|
797 | |
|
|
798 | int inline_size |
|
|
799 | fd_valid (int fd) |
|
|
800 | { |
|
|
801 | #ifdef _WIN32 |
|
|
802 | return _get_osfhandle (fd) != -1; |
|
|
803 | #else |
|
|
804 | return fcntl (fd, F_GETFD) != -1; |
|
|
805 | #endif |
261 | } |
806 | } |
262 | |
807 | |
263 | /* called on EBADF to verify fds */ |
808 | /* called on EBADF to verify fds */ |
264 | static void |
809 | static void noinline |
265 | fd_recheck (void) |
810 | fd_ebadf (EV_P) |
266 | { |
811 | { |
267 | int fd; |
812 | int fd; |
268 | |
813 | |
269 | for (fd = 0; fd < anfdmax; ++fd) |
814 | for (fd = 0; fd < anfdmax; ++fd) |
270 | if (anfds [fd].events) |
815 | if (anfds [fd].events) |
271 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
816 | if (!fd_valid (fd) && errno == EBADF) |
272 | while (anfds [fd].head) |
817 | fd_kill (EV_A_ fd); |
|
|
818 | } |
|
|
819 | |
|
|
820 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
|
|
821 | static void noinline |
|
|
822 | fd_enomem (EV_P) |
|
|
823 | { |
|
|
824 | int fd; |
|
|
825 | |
|
|
826 | for (fd = anfdmax; fd--; ) |
|
|
827 | if (anfds [fd].events) |
273 | { |
828 | { |
274 | ev_io_stop (anfds [fd].head); |
829 | fd_kill (EV_A_ fd); |
275 | event ((W)anfds [fd].head, EV_ERROR | EV_READ | EV_WRITE); |
830 | return; |
276 | } |
831 | } |
|
|
832 | } |
|
|
833 | |
|
|
834 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
|
|
835 | static void noinline |
|
|
836 | fd_rearm_all (EV_P) |
|
|
837 | { |
|
|
838 | int fd; |
|
|
839 | |
|
|
840 | for (fd = 0; fd < anfdmax; ++fd) |
|
|
841 | if (anfds [fd].events) |
|
|
842 | { |
|
|
843 | anfds [fd].events = 0; |
|
|
844 | anfds [fd].emask = 0; |
|
|
845 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
|
|
846 | } |
277 | } |
847 | } |
278 | |
848 | |
279 | /*****************************************************************************/ |
849 | /*****************************************************************************/ |
280 | |
850 | |
281 | static struct ev_timer **timers; |
851 | /* |
282 | static int timermax, timercnt; |
852 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
|
|
853 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
|
|
854 | * the branching factor of the d-tree. |
|
|
855 | */ |
283 | |
856 | |
284 | static struct ev_periodic **periodics; |
857 | /* |
285 | static int periodicmax, periodiccnt; |
858 | * at the moment we allow libev the luxury of two heaps, |
|
|
859 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
860 | * which is more cache-efficient. |
|
|
861 | * the difference is about 5% with 50000+ watchers. |
|
|
862 | */ |
|
|
863 | #if EV_USE_4HEAP |
286 | |
864 | |
287 | static void |
865 | #define DHEAP 4 |
288 | upheap (WT *timers, int k) |
866 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
289 | { |
867 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
290 | WT w = timers [k]; |
868 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
291 | |
869 | |
292 | while (k && timers [k >> 1]->at > w->at) |
870 | /* away from the root */ |
293 | { |
871 | void inline_speed |
294 | timers [k] = timers [k >> 1]; |
|
|
295 | timers [k]->active = k + 1; |
|
|
296 | k >>= 1; |
|
|
297 | } |
|
|
298 | |
|
|
299 | timers [k] = w; |
|
|
300 | timers [k]->active = k + 1; |
|
|
301 | |
|
|
302 | } |
|
|
303 | |
|
|
304 | static void |
|
|
305 | downheap (WT *timers, int N, int k) |
872 | downheap (ANHE *heap, int N, int k) |
306 | { |
873 | { |
307 | WT w = timers [k]; |
874 | ANHE he = heap [k]; |
|
|
875 | ANHE *E = heap + N + HEAP0; |
308 | |
876 | |
309 | while (k < (N >> 1)) |
877 | for (;;) |
310 | { |
878 | { |
311 | int j = k << 1; |
879 | ev_tstamp minat; |
|
|
880 | ANHE *minpos; |
|
|
881 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
312 | |
882 | |
313 | if (j + 1 < N && timers [j]->at > timers [j + 1]->at) |
883 | /* find minimum child */ |
|
|
884 | if (expect_true (pos + DHEAP - 1 < E)) |
314 | ++j; |
885 | { |
315 | |
886 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
316 | if (w->at <= timers [j]->at) |
887 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
888 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
889 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
890 | } |
|
|
891 | else if (pos < E) |
|
|
892 | { |
|
|
893 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
894 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
895 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
896 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
897 | } |
|
|
898 | else |
317 | break; |
899 | break; |
318 | |
900 | |
319 | timers [k] = timers [j]; |
901 | if (ANHE_at (he) <= minat) |
320 | timers [k]->active = k + 1; |
902 | break; |
|
|
903 | |
|
|
904 | heap [k] = *minpos; |
|
|
905 | ev_active (ANHE_w (*minpos)) = k; |
|
|
906 | |
|
|
907 | k = minpos - heap; |
|
|
908 | } |
|
|
909 | |
|
|
910 | heap [k] = he; |
|
|
911 | ev_active (ANHE_w (he)) = k; |
|
|
912 | } |
|
|
913 | |
|
|
914 | #else /* 4HEAP */ |
|
|
915 | |
|
|
916 | #define HEAP0 1 |
|
|
917 | #define HPARENT(k) ((k) >> 1) |
|
|
918 | #define UPHEAP_DONE(p,k) (!(p)) |
|
|
919 | |
|
|
920 | /* away from the root */ |
|
|
921 | void inline_speed |
|
|
922 | downheap (ANHE *heap, int N, int k) |
|
|
923 | { |
|
|
924 | ANHE he = heap [k]; |
|
|
925 | |
|
|
926 | for (;;) |
|
|
927 | { |
|
|
928 | int c = k << 1; |
|
|
929 | |
|
|
930 | if (c > N + HEAP0 - 1) |
|
|
931 | break; |
|
|
932 | |
|
|
933 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
934 | ? 1 : 0; |
|
|
935 | |
|
|
936 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
937 | break; |
|
|
938 | |
|
|
939 | heap [k] = heap [c]; |
|
|
940 | ev_active (ANHE_w (heap [k])) = k; |
|
|
941 | |
321 | k = j; |
942 | k = c; |
|
|
943 | } |
|
|
944 | |
|
|
945 | heap [k] = he; |
|
|
946 | ev_active (ANHE_w (he)) = k; |
|
|
947 | } |
|
|
948 | #endif |
|
|
949 | |
|
|
950 | /* towards the root */ |
|
|
951 | void inline_speed |
|
|
952 | upheap (ANHE *heap, int k) |
|
|
953 | { |
|
|
954 | ANHE he = heap [k]; |
|
|
955 | |
|
|
956 | for (;;) |
322 | } |
957 | { |
|
|
958 | int p = HPARENT (k); |
323 | |
959 | |
324 | timers [k] = w; |
960 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
325 | timers [k]->active = k + 1; |
961 | break; |
|
|
962 | |
|
|
963 | heap [k] = heap [p]; |
|
|
964 | ev_active (ANHE_w (heap [k])) = k; |
|
|
965 | k = p; |
|
|
966 | } |
|
|
967 | |
|
|
968 | heap [k] = he; |
|
|
969 | ev_active (ANHE_w (he)) = k; |
|
|
970 | } |
|
|
971 | |
|
|
972 | void inline_size |
|
|
973 | adjustheap (ANHE *heap, int N, int k) |
|
|
974 | { |
|
|
975 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
|
|
976 | upheap (heap, k); |
|
|
977 | else |
|
|
978 | downheap (heap, N, k); |
|
|
979 | } |
|
|
980 | |
|
|
981 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
982 | void inline_size |
|
|
983 | reheap (ANHE *heap, int N) |
|
|
984 | { |
|
|
985 | int i; |
|
|
986 | |
|
|
987 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
988 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
989 | for (i = 0; i < N; ++i) |
|
|
990 | upheap (heap, i + HEAP0); |
326 | } |
991 | } |
327 | |
992 | |
328 | /*****************************************************************************/ |
993 | /*****************************************************************************/ |
329 | |
994 | |
330 | typedef struct |
995 | typedef struct |
331 | { |
996 | { |
332 | struct ev_signal *head; |
997 | WL head; |
333 | sig_atomic_t volatile gotsig; |
998 | EV_ATOMIC_T gotsig; |
334 | } ANSIG; |
999 | } ANSIG; |
335 | |
1000 | |
336 | static ANSIG *signals; |
1001 | static ANSIG *signals; |
337 | static int signalmax; |
1002 | static int signalmax; |
338 | |
1003 | |
339 | static int sigpipe [2]; |
1004 | static EV_ATOMIC_T gotsig; |
340 | static sig_atomic_t volatile gotsig; |
1005 | |
341 | static struct ev_io sigev; |
1006 | /*****************************************************************************/ |
|
|
1007 | |
|
|
1008 | void inline_speed |
|
|
1009 | fd_intern (int fd) |
|
|
1010 | { |
|
|
1011 | #ifdef _WIN32 |
|
|
1012 | unsigned long arg = 1; |
|
|
1013 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
1014 | #else |
|
|
1015 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1016 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1017 | #endif |
|
|
1018 | } |
|
|
1019 | |
|
|
1020 | static void noinline |
|
|
1021 | evpipe_init (EV_P) |
|
|
1022 | { |
|
|
1023 | if (!ev_is_active (&pipeev)) |
|
|
1024 | { |
|
|
1025 | #if EV_USE_EVENTFD |
|
|
1026 | if ((evfd = eventfd (0, 0)) >= 0) |
|
|
1027 | { |
|
|
1028 | evpipe [0] = -1; |
|
|
1029 | fd_intern (evfd); |
|
|
1030 | ev_io_set (&pipeev, evfd, EV_READ); |
|
|
1031 | } |
|
|
1032 | else |
|
|
1033 | #endif |
|
|
1034 | { |
|
|
1035 | while (pipe (evpipe)) |
|
|
1036 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
1037 | |
|
|
1038 | fd_intern (evpipe [0]); |
|
|
1039 | fd_intern (evpipe [1]); |
|
|
1040 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
|
|
1041 | } |
|
|
1042 | |
|
|
1043 | ev_io_start (EV_A_ &pipeev); |
|
|
1044 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1045 | } |
|
|
1046 | } |
|
|
1047 | |
|
|
1048 | void inline_size |
|
|
1049 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1050 | { |
|
|
1051 | if (!*flag) |
|
|
1052 | { |
|
|
1053 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1054 | |
|
|
1055 | *flag = 1; |
|
|
1056 | |
|
|
1057 | #if EV_USE_EVENTFD |
|
|
1058 | if (evfd >= 0) |
|
|
1059 | { |
|
|
1060 | uint64_t counter = 1; |
|
|
1061 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1062 | } |
|
|
1063 | else |
|
|
1064 | #endif |
|
|
1065 | write (evpipe [1], &old_errno, 1); |
|
|
1066 | |
|
|
1067 | errno = old_errno; |
|
|
1068 | } |
|
|
1069 | } |
342 | |
1070 | |
343 | static void |
1071 | static void |
344 | signals_init (ANSIG *base, int count) |
1072 | pipecb (EV_P_ ev_io *iow, int revents) |
345 | { |
1073 | { |
346 | while (count--) |
1074 | #if EV_USE_EVENTFD |
|
|
1075 | if (evfd >= 0) |
|
|
1076 | { |
|
|
1077 | uint64_t counter; |
|
|
1078 | read (evfd, &counter, sizeof (uint64_t)); |
347 | { |
1079 | } |
348 | base->head = 0; |
1080 | else |
|
|
1081 | #endif |
|
|
1082 | { |
|
|
1083 | char dummy; |
|
|
1084 | read (evpipe [0], &dummy, 1); |
|
|
1085 | } |
|
|
1086 | |
|
|
1087 | if (gotsig && ev_is_default_loop (EV_A)) |
|
|
1088 | { |
|
|
1089 | int signum; |
349 | base->gotsig = 0; |
1090 | gotsig = 0; |
350 | |
1091 | |
351 | ++base; |
1092 | for (signum = signalmax; signum--; ) |
|
|
1093 | if (signals [signum].gotsig) |
|
|
1094 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
1095 | } |
|
|
1096 | |
|
|
1097 | #if EV_ASYNC_ENABLE |
|
|
1098 | if (gotasync) |
352 | } |
1099 | { |
|
|
1100 | int i; |
|
|
1101 | gotasync = 0; |
|
|
1102 | |
|
|
1103 | for (i = asynccnt; i--; ) |
|
|
1104 | if (asyncs [i]->sent) |
|
|
1105 | { |
|
|
1106 | asyncs [i]->sent = 0; |
|
|
1107 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
1108 | } |
|
|
1109 | } |
|
|
1110 | #endif |
353 | } |
1111 | } |
|
|
1112 | |
|
|
1113 | /*****************************************************************************/ |
354 | |
1114 | |
355 | static void |
1115 | static void |
356 | sighandler (int signum) |
1116 | ev_sighandler (int signum) |
357 | { |
1117 | { |
|
|
1118 | #if EV_MULTIPLICITY |
|
|
1119 | struct ev_loop *loop = &default_loop_struct; |
|
|
1120 | #endif |
|
|
1121 | |
|
|
1122 | #if _WIN32 |
|
|
1123 | signal (signum, ev_sighandler); |
|
|
1124 | #endif |
|
|
1125 | |
358 | signals [signum - 1].gotsig = 1; |
1126 | signals [signum - 1].gotsig = 1; |
359 | |
1127 | evpipe_write (EV_A_ &gotsig); |
360 | if (!gotsig) |
|
|
361 | { |
|
|
362 | gotsig = 1; |
|
|
363 | write (sigpipe [1], &signum, 1); |
|
|
364 | } |
|
|
365 | } |
1128 | } |
366 | |
1129 | |
367 | static void |
1130 | void noinline |
368 | sigcb (struct ev_io *iow, int revents) |
1131 | ev_feed_signal_event (EV_P_ int signum) |
369 | { |
1132 | { |
370 | struct ev_signal *w; |
1133 | WL w; |
371 | int sig; |
|
|
372 | |
1134 | |
373 | read (sigpipe [0], &revents, 1); |
1135 | #if EV_MULTIPLICITY |
374 | gotsig = 0; |
1136 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1137 | #endif |
375 | |
1138 | |
376 | for (sig = signalmax; sig--; ) |
1139 | --signum; |
377 | if (signals [sig].gotsig) |
1140 | |
378 | { |
1141 | if (signum < 0 || signum >= signalmax) |
|
|
1142 | return; |
|
|
1143 | |
379 | signals [sig].gotsig = 0; |
1144 | signals [signum].gotsig = 0; |
380 | |
1145 | |
381 | for (w = signals [sig].head; w; w = w->next) |
1146 | for (w = signals [signum].head; w; w = w->next) |
382 | event ((W)w, EV_SIGNAL); |
1147 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
383 | } |
|
|
384 | } |
|
|
385 | |
|
|
386 | static void |
|
|
387 | siginit (void) |
|
|
388 | { |
|
|
389 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
|
|
390 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
|
|
391 | |
|
|
392 | /* rather than sort out wether we really need nb, set it */ |
|
|
393 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
|
|
394 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
|
|
395 | |
|
|
396 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
397 | ev_io_start (&sigev); |
|
|
398 | } |
1148 | } |
399 | |
1149 | |
400 | /*****************************************************************************/ |
1150 | /*****************************************************************************/ |
401 | |
1151 | |
402 | static struct ev_idle **idles; |
1152 | static WL childs [EV_PID_HASHSIZE]; |
403 | static int idlemax, idlecnt; |
|
|
404 | |
1153 | |
405 | static struct ev_prepare **prepares; |
1154 | #ifndef _WIN32 |
406 | static int preparemax, preparecnt; |
|
|
407 | |
1155 | |
408 | static struct ev_check **checks; |
|
|
409 | static int checkmax, checkcnt; |
|
|
410 | |
|
|
411 | /*****************************************************************************/ |
|
|
412 | |
|
|
413 | static struct ev_child *childs [PID_HASHSIZE]; |
|
|
414 | static struct ev_signal childev; |
1156 | static ev_signal childev; |
|
|
1157 | |
|
|
1158 | #ifndef WIFCONTINUED |
|
|
1159 | # define WIFCONTINUED(status) 0 |
|
|
1160 | #endif |
|
|
1161 | |
|
|
1162 | void inline_speed |
|
|
1163 | child_reap (EV_P_ int chain, int pid, int status) |
|
|
1164 | { |
|
|
1165 | ev_child *w; |
|
|
1166 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
|
|
1167 | |
|
|
1168 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1169 | { |
|
|
1170 | if ((w->pid == pid || !w->pid) |
|
|
1171 | && (!traced || (w->flags & 1))) |
|
|
1172 | { |
|
|
1173 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
|
|
1174 | w->rpid = pid; |
|
|
1175 | w->rstatus = status; |
|
|
1176 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
1177 | } |
|
|
1178 | } |
|
|
1179 | } |
415 | |
1180 | |
416 | #ifndef WCONTINUED |
1181 | #ifndef WCONTINUED |
417 | # define WCONTINUED 0 |
1182 | # define WCONTINUED 0 |
418 | #endif |
1183 | #endif |
419 | |
1184 | |
420 | static void |
1185 | static void |
421 | childcb (struct ev_signal *sw, int revents) |
1186 | childcb (EV_P_ ev_signal *sw, int revents) |
422 | { |
1187 | { |
423 | struct ev_child *w; |
|
|
424 | int pid, status; |
1188 | int pid, status; |
425 | |
1189 | |
|
|
1190 | /* some systems define WCONTINUED but then fail to support it (linux 2.4) */ |
426 | while ((pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)) != -1) |
1191 | if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
427 | for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next) |
1192 | if (!WCONTINUED |
428 | if (w->pid == pid || w->pid == -1) |
1193 | || errno != EINVAL |
429 | { |
1194 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
430 | w->status = status; |
1195 | return; |
431 | event ((W)w, EV_CHILD); |
1196 | |
432 | } |
1197 | /* make sure we are called again until all children have been reaped */ |
|
|
1198 | /* we need to do it this way so that the callback gets called before we continue */ |
|
|
1199 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
|
|
1200 | |
|
|
1201 | child_reap (EV_A_ pid, pid, status); |
|
|
1202 | if (EV_PID_HASHSIZE > 1) |
|
|
1203 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
433 | } |
1204 | } |
|
|
1205 | |
|
|
1206 | #endif |
434 | |
1207 | |
435 | /*****************************************************************************/ |
1208 | /*****************************************************************************/ |
436 | |
1209 | |
|
|
1210 | #if EV_USE_PORT |
|
|
1211 | # include "ev_port.c" |
|
|
1212 | #endif |
|
|
1213 | #if EV_USE_KQUEUE |
|
|
1214 | # include "ev_kqueue.c" |
|
|
1215 | #endif |
437 | #if EV_USE_EPOLL |
1216 | #if EV_USE_EPOLL |
438 | # include "ev_epoll.c" |
1217 | # include "ev_epoll.c" |
439 | #endif |
1218 | #endif |
|
|
1219 | #if EV_USE_POLL |
|
|
1220 | # include "ev_poll.c" |
|
|
1221 | #endif |
440 | #if EV_USE_SELECT |
1222 | #if EV_USE_SELECT |
441 | # include "ev_select.c" |
1223 | # include "ev_select.c" |
442 | #endif |
1224 | #endif |
443 | |
1225 | |
444 | int |
1226 | int |
… | |
… | |
451 | ev_version_minor (void) |
1233 | ev_version_minor (void) |
452 | { |
1234 | { |
453 | return EV_VERSION_MINOR; |
1235 | return EV_VERSION_MINOR; |
454 | } |
1236 | } |
455 | |
1237 | |
456 | int ev_init (int flags) |
1238 | /* return true if we are running with elevated privileges and should ignore env variables */ |
|
|
1239 | int inline_size |
|
|
1240 | enable_secure (void) |
457 | { |
1241 | { |
458 | if (!ev_method) |
1242 | #ifdef _WIN32 |
|
|
1243 | return 0; |
|
|
1244 | #else |
|
|
1245 | return getuid () != geteuid () |
|
|
1246 | || getgid () != getegid (); |
|
|
1247 | #endif |
|
|
1248 | } |
|
|
1249 | |
|
|
1250 | unsigned int |
|
|
1251 | ev_supported_backends (void) |
|
|
1252 | { |
|
|
1253 | unsigned int flags = 0; |
|
|
1254 | |
|
|
1255 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
|
|
1256 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
|
|
1257 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
1258 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
1259 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
|
|
1260 | |
|
|
1261 | return flags; |
|
|
1262 | } |
|
|
1263 | |
|
|
1264 | unsigned int |
|
|
1265 | ev_recommended_backends (void) |
|
|
1266 | { |
|
|
1267 | unsigned int flags = ev_supported_backends (); |
|
|
1268 | |
|
|
1269 | #ifndef __NetBSD__ |
|
|
1270 | /* kqueue is borked on everything but netbsd apparently */ |
|
|
1271 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
|
|
1272 | flags &= ~EVBACKEND_KQUEUE; |
|
|
1273 | #endif |
|
|
1274 | #ifdef __APPLE__ |
|
|
1275 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
|
|
1276 | flags &= ~EVBACKEND_POLL; |
|
|
1277 | #endif |
|
|
1278 | |
|
|
1279 | return flags; |
|
|
1280 | } |
|
|
1281 | |
|
|
1282 | unsigned int |
|
|
1283 | ev_embeddable_backends (void) |
|
|
1284 | { |
|
|
1285 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
|
|
1286 | |
|
|
1287 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1288 | /* please fix it and tell me how to detect the fix */ |
|
|
1289 | flags &= ~EVBACKEND_EPOLL; |
|
|
1290 | |
|
|
1291 | return flags; |
|
|
1292 | } |
|
|
1293 | |
|
|
1294 | unsigned int |
|
|
1295 | ev_backend (EV_P) |
|
|
1296 | { |
|
|
1297 | return backend; |
|
|
1298 | } |
|
|
1299 | |
|
|
1300 | unsigned int |
|
|
1301 | ev_loop_count (EV_P) |
|
|
1302 | { |
|
|
1303 | return loop_count; |
|
|
1304 | } |
|
|
1305 | |
|
|
1306 | void |
|
|
1307 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1308 | { |
|
|
1309 | io_blocktime = interval; |
|
|
1310 | } |
|
|
1311 | |
|
|
1312 | void |
|
|
1313 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1314 | { |
|
|
1315 | timeout_blocktime = interval; |
|
|
1316 | } |
|
|
1317 | |
|
|
1318 | static void noinline |
|
|
1319 | loop_init (EV_P_ unsigned int flags) |
|
|
1320 | { |
|
|
1321 | if (!backend) |
459 | { |
1322 | { |
460 | #if EV_USE_MONOTONIC |
1323 | #if EV_USE_MONOTONIC |
461 | { |
1324 | { |
462 | struct timespec ts; |
1325 | struct timespec ts; |
463 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1326 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
464 | have_monotonic = 1; |
1327 | have_monotonic = 1; |
465 | } |
1328 | } |
466 | #endif |
1329 | #endif |
467 | |
1330 | |
468 | ev_now = ev_time (); |
1331 | ev_rt_now = ev_time (); |
469 | now = get_clock (); |
1332 | mn_now = get_clock (); |
|
|
1333 | now_floor = mn_now; |
470 | diff = ev_now - now; |
1334 | rtmn_diff = ev_rt_now - mn_now; |
471 | |
1335 | |
472 | if (pipe (sigpipe)) |
1336 | io_blocktime = 0.; |
473 | return 0; |
1337 | timeout_blocktime = 0.; |
|
|
1338 | backend = 0; |
|
|
1339 | backend_fd = -1; |
|
|
1340 | gotasync = 0; |
|
|
1341 | #if EV_USE_INOTIFY |
|
|
1342 | fs_fd = -2; |
|
|
1343 | #endif |
474 | |
1344 | |
475 | ev_method = EVMETHOD_NONE; |
1345 | /* pid check not overridable via env */ |
|
|
1346 | #ifndef _WIN32 |
|
|
1347 | if (flags & EVFLAG_FORKCHECK) |
|
|
1348 | curpid = getpid (); |
|
|
1349 | #endif |
|
|
1350 | |
|
|
1351 | if (!(flags & EVFLAG_NOENV) |
|
|
1352 | && !enable_secure () |
|
|
1353 | && getenv ("LIBEV_FLAGS")) |
|
|
1354 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1355 | |
|
|
1356 | if (!(flags & 0x0000ffffU)) |
|
|
1357 | flags |= ev_recommended_backends (); |
|
|
1358 | |
|
|
1359 | #if EV_USE_PORT |
|
|
1360 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
|
|
1361 | #endif |
|
|
1362 | #if EV_USE_KQUEUE |
|
|
1363 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
|
|
1364 | #endif |
476 | #if EV_USE_EPOLL |
1365 | #if EV_USE_EPOLL |
477 | if (ev_method == EVMETHOD_NONE) epoll_init (flags); |
1366 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
|
|
1367 | #endif |
|
|
1368 | #if EV_USE_POLL |
|
|
1369 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
478 | #endif |
1370 | #endif |
479 | #if EV_USE_SELECT |
1371 | #if EV_USE_SELECT |
480 | if (ev_method == EVMETHOD_NONE) select_init (flags); |
1372 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
481 | #endif |
1373 | #endif |
482 | |
1374 | |
483 | if (ev_method) |
1375 | ev_init (&pipeev, pipecb); |
|
|
1376 | ev_set_priority (&pipeev, EV_MAXPRI); |
|
|
1377 | } |
|
|
1378 | } |
|
|
1379 | |
|
|
1380 | static void noinline |
|
|
1381 | loop_destroy (EV_P) |
|
|
1382 | { |
|
|
1383 | int i; |
|
|
1384 | |
|
|
1385 | if (ev_is_active (&pipeev)) |
|
|
1386 | { |
|
|
1387 | ev_ref (EV_A); /* signal watcher */ |
|
|
1388 | ev_io_stop (EV_A_ &pipeev); |
|
|
1389 | |
|
|
1390 | #if EV_USE_EVENTFD |
|
|
1391 | if (evfd >= 0) |
|
|
1392 | close (evfd); |
|
|
1393 | #endif |
|
|
1394 | |
|
|
1395 | if (evpipe [0] >= 0) |
484 | { |
1396 | { |
485 | ev_watcher_init (&sigev, sigcb); |
1397 | close (evpipe [0]); |
486 | siginit (); |
1398 | close (evpipe [1]); |
|
|
1399 | } |
|
|
1400 | } |
487 | |
1401 | |
|
|
1402 | #if EV_USE_INOTIFY |
|
|
1403 | if (fs_fd >= 0) |
|
|
1404 | close (fs_fd); |
|
|
1405 | #endif |
|
|
1406 | |
|
|
1407 | if (backend_fd >= 0) |
|
|
1408 | close (backend_fd); |
|
|
1409 | |
|
|
1410 | #if EV_USE_PORT |
|
|
1411 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
|
|
1412 | #endif |
|
|
1413 | #if EV_USE_KQUEUE |
|
|
1414 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
|
|
1415 | #endif |
|
|
1416 | #if EV_USE_EPOLL |
|
|
1417 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
|
|
1418 | #endif |
|
|
1419 | #if EV_USE_POLL |
|
|
1420 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
|
|
1421 | #endif |
|
|
1422 | #if EV_USE_SELECT |
|
|
1423 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
|
|
1424 | #endif |
|
|
1425 | |
|
|
1426 | for (i = NUMPRI; i--; ) |
|
|
1427 | { |
|
|
1428 | array_free (pending, [i]); |
|
|
1429 | #if EV_IDLE_ENABLE |
|
|
1430 | array_free (idle, [i]); |
|
|
1431 | #endif |
|
|
1432 | } |
|
|
1433 | |
|
|
1434 | ev_free (anfds); anfdmax = 0; |
|
|
1435 | |
|
|
1436 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1437 | array_free (fdchange, EMPTY); |
|
|
1438 | array_free (timer, EMPTY); |
|
|
1439 | #if EV_PERIODIC_ENABLE |
|
|
1440 | array_free (periodic, EMPTY); |
|
|
1441 | #endif |
|
|
1442 | #if EV_FORK_ENABLE |
|
|
1443 | array_free (fork, EMPTY); |
|
|
1444 | #endif |
|
|
1445 | array_free (prepare, EMPTY); |
|
|
1446 | array_free (check, EMPTY); |
|
|
1447 | #if EV_ASYNC_ENABLE |
|
|
1448 | array_free (async, EMPTY); |
|
|
1449 | #endif |
|
|
1450 | |
|
|
1451 | backend = 0; |
|
|
1452 | } |
|
|
1453 | |
|
|
1454 | #if EV_USE_INOTIFY |
|
|
1455 | void inline_size infy_fork (EV_P); |
|
|
1456 | #endif |
|
|
1457 | |
|
|
1458 | void inline_size |
|
|
1459 | loop_fork (EV_P) |
|
|
1460 | { |
|
|
1461 | #if EV_USE_PORT |
|
|
1462 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
|
|
1463 | #endif |
|
|
1464 | #if EV_USE_KQUEUE |
|
|
1465 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
|
|
1466 | #endif |
|
|
1467 | #if EV_USE_EPOLL |
|
|
1468 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
|
|
1469 | #endif |
|
|
1470 | #if EV_USE_INOTIFY |
|
|
1471 | infy_fork (EV_A); |
|
|
1472 | #endif |
|
|
1473 | |
|
|
1474 | if (ev_is_active (&pipeev)) |
|
|
1475 | { |
|
|
1476 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1477 | /* while we modify the fd vars */ |
|
|
1478 | gotsig = 1; |
|
|
1479 | #if EV_ASYNC_ENABLE |
|
|
1480 | gotasync = 1; |
|
|
1481 | #endif |
|
|
1482 | |
|
|
1483 | ev_ref (EV_A); |
|
|
1484 | ev_io_stop (EV_A_ &pipeev); |
|
|
1485 | |
|
|
1486 | #if EV_USE_EVENTFD |
|
|
1487 | if (evfd >= 0) |
|
|
1488 | close (evfd); |
|
|
1489 | #endif |
|
|
1490 | |
|
|
1491 | if (evpipe [0] >= 0) |
|
|
1492 | { |
|
|
1493 | close (evpipe [0]); |
|
|
1494 | close (evpipe [1]); |
|
|
1495 | } |
|
|
1496 | |
|
|
1497 | evpipe_init (EV_A); |
|
|
1498 | /* now iterate over everything, in case we missed something */ |
|
|
1499 | pipecb (EV_A_ &pipeev, EV_READ); |
|
|
1500 | } |
|
|
1501 | |
|
|
1502 | postfork = 0; |
|
|
1503 | } |
|
|
1504 | |
|
|
1505 | #if EV_MULTIPLICITY |
|
|
1506 | |
|
|
1507 | struct ev_loop * |
|
|
1508 | ev_loop_new (unsigned int flags) |
|
|
1509 | { |
|
|
1510 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
|
|
1511 | |
|
|
1512 | memset (loop, 0, sizeof (struct ev_loop)); |
|
|
1513 | |
|
|
1514 | loop_init (EV_A_ flags); |
|
|
1515 | |
|
|
1516 | if (ev_backend (EV_A)) |
|
|
1517 | return loop; |
|
|
1518 | |
|
|
1519 | return 0; |
|
|
1520 | } |
|
|
1521 | |
|
|
1522 | void |
|
|
1523 | ev_loop_destroy (EV_P) |
|
|
1524 | { |
|
|
1525 | loop_destroy (EV_A); |
|
|
1526 | ev_free (loop); |
|
|
1527 | } |
|
|
1528 | |
|
|
1529 | void |
|
|
1530 | ev_loop_fork (EV_P) |
|
|
1531 | { |
|
|
1532 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1533 | } |
|
|
1534 | |
|
|
1535 | #if EV_VERIFY |
|
|
1536 | static void noinline |
|
|
1537 | verify_watcher (EV_P_ W w) |
|
|
1538 | { |
|
|
1539 | assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1540 | |
|
|
1541 | if (w->pending) |
|
|
1542 | assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1543 | } |
|
|
1544 | |
|
|
1545 | static void noinline |
|
|
1546 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1547 | { |
|
|
1548 | int i; |
|
|
1549 | |
|
|
1550 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1551 | { |
|
|
1552 | assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1553 | assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1554 | assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1555 | |
|
|
1556 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1557 | } |
|
|
1558 | } |
|
|
1559 | |
|
|
1560 | static void noinline |
|
|
1561 | array_verify (EV_P_ W *ws, int cnt) |
|
|
1562 | { |
|
|
1563 | while (cnt--) |
|
|
1564 | { |
|
|
1565 | assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1566 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1567 | } |
|
|
1568 | } |
|
|
1569 | #endif |
|
|
1570 | |
|
|
1571 | void |
|
|
1572 | ev_loop_verify (EV_P) |
|
|
1573 | { |
|
|
1574 | #if EV_VERIFY |
|
|
1575 | int i; |
|
|
1576 | WL w; |
|
|
1577 | |
|
|
1578 | assert (activecnt >= -1); |
|
|
1579 | |
|
|
1580 | assert (fdchangemax >= fdchangecnt); |
|
|
1581 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1582 | assert (("negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1583 | |
|
|
1584 | assert (anfdmax >= 0); |
|
|
1585 | for (i = 0; i < anfdmax; ++i) |
|
|
1586 | for (w = anfds [i].head; w; w = w->next) |
|
|
1587 | { |
|
|
1588 | verify_watcher (EV_A_ (W)w); |
|
|
1589 | assert (("inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1590 | assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1591 | } |
|
|
1592 | |
|
|
1593 | assert (timermax >= timercnt); |
|
|
1594 | verify_heap (EV_A_ timers, timercnt); |
|
|
1595 | |
|
|
1596 | #if EV_PERIODIC_ENABLE |
|
|
1597 | assert (periodicmax >= periodiccnt); |
|
|
1598 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
1599 | #endif |
|
|
1600 | |
|
|
1601 | for (i = NUMPRI; i--; ) |
|
|
1602 | { |
|
|
1603 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
1604 | #if EV_IDLE_ENABLE |
|
|
1605 | assert (idleall >= 0); |
|
|
1606 | assert (idlemax [i] >= idlecnt [i]); |
|
|
1607 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
1608 | #endif |
|
|
1609 | } |
|
|
1610 | |
|
|
1611 | #if EV_FORK_ENABLE |
|
|
1612 | assert (forkmax >= forkcnt); |
|
|
1613 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
1614 | #endif |
|
|
1615 | |
|
|
1616 | #if EV_ASYNC_ENABLE |
|
|
1617 | assert (asyncmax >= asynccnt); |
|
|
1618 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
1619 | #endif |
|
|
1620 | |
|
|
1621 | assert (preparemax >= preparecnt); |
|
|
1622 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1623 | |
|
|
1624 | assert (checkmax >= checkcnt); |
|
|
1625 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1626 | |
|
|
1627 | # if 0 |
|
|
1628 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1629 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
|
|
1630 | # endif |
|
|
1631 | #endif |
|
|
1632 | } |
|
|
1633 | |
|
|
1634 | #endif /* multiplicity */ |
|
|
1635 | |
|
|
1636 | #if EV_MULTIPLICITY |
|
|
1637 | struct ev_loop * |
|
|
1638 | ev_default_loop_init (unsigned int flags) |
|
|
1639 | #else |
|
|
1640 | int |
|
|
1641 | ev_default_loop (unsigned int flags) |
|
|
1642 | #endif |
|
|
1643 | { |
|
|
1644 | if (!ev_default_loop_ptr) |
|
|
1645 | { |
|
|
1646 | #if EV_MULTIPLICITY |
|
|
1647 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
|
|
1648 | #else |
|
|
1649 | ev_default_loop_ptr = 1; |
|
|
1650 | #endif |
|
|
1651 | |
|
|
1652 | loop_init (EV_A_ flags); |
|
|
1653 | |
|
|
1654 | if (ev_backend (EV_A)) |
|
|
1655 | { |
|
|
1656 | #ifndef _WIN32 |
488 | ev_signal_init (&childev, childcb, SIGCHLD); |
1657 | ev_signal_init (&childev, childcb, SIGCHLD); |
|
|
1658 | ev_set_priority (&childev, EV_MAXPRI); |
489 | ev_signal_start (&childev); |
1659 | ev_signal_start (EV_A_ &childev); |
|
|
1660 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
|
|
1661 | #endif |
490 | } |
1662 | } |
|
|
1663 | else |
|
|
1664 | ev_default_loop_ptr = 0; |
491 | } |
1665 | } |
492 | |
1666 | |
493 | return ev_method; |
1667 | return ev_default_loop_ptr; |
|
|
1668 | } |
|
|
1669 | |
|
|
1670 | void |
|
|
1671 | ev_default_destroy (void) |
|
|
1672 | { |
|
|
1673 | #if EV_MULTIPLICITY |
|
|
1674 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1675 | #endif |
|
|
1676 | |
|
|
1677 | ev_default_loop_ptr = 0; |
|
|
1678 | |
|
|
1679 | #ifndef _WIN32 |
|
|
1680 | ev_ref (EV_A); /* child watcher */ |
|
|
1681 | ev_signal_stop (EV_A_ &childev); |
|
|
1682 | #endif |
|
|
1683 | |
|
|
1684 | loop_destroy (EV_A); |
|
|
1685 | } |
|
|
1686 | |
|
|
1687 | void |
|
|
1688 | ev_default_fork (void) |
|
|
1689 | { |
|
|
1690 | #if EV_MULTIPLICITY |
|
|
1691 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1692 | #endif |
|
|
1693 | |
|
|
1694 | postfork = 1; /* must be in line with ev_loop_fork */ |
494 | } |
1695 | } |
495 | |
1696 | |
496 | /*****************************************************************************/ |
1697 | /*****************************************************************************/ |
497 | |
1698 | |
498 | void |
1699 | void |
499 | ev_fork_prepare (void) |
1700 | ev_invoke (EV_P_ void *w, int revents) |
500 | { |
1701 | { |
501 | /* nop */ |
1702 | EV_CB_INVOKE ((W)w, revents); |
502 | } |
1703 | } |
503 | |
1704 | |
504 | void |
1705 | void inline_speed |
505 | ev_fork_parent (void) |
|
|
506 | { |
|
|
507 | /* nop */ |
|
|
508 | } |
|
|
509 | |
|
|
510 | void |
|
|
511 | ev_fork_child (void) |
|
|
512 | { |
|
|
513 | #if EV_USE_EPOLL |
|
|
514 | if (ev_method == EVMETHOD_EPOLL) |
|
|
515 | epoll_postfork_child (); |
|
|
516 | #endif |
|
|
517 | |
|
|
518 | ev_io_stop (&sigev); |
|
|
519 | close (sigpipe [0]); |
|
|
520 | close (sigpipe [1]); |
|
|
521 | pipe (sigpipe); |
|
|
522 | siginit (); |
|
|
523 | } |
|
|
524 | |
|
|
525 | /*****************************************************************************/ |
|
|
526 | |
|
|
527 | static void |
|
|
528 | call_pending (void) |
1706 | call_pending (EV_P) |
529 | { |
1707 | { |
|
|
1708 | int pri; |
|
|
1709 | |
|
|
1710 | for (pri = NUMPRI; pri--; ) |
530 | while (pendingcnt) |
1711 | while (pendingcnt [pri]) |
531 | { |
1712 | { |
532 | ANPENDING *p = pendings + --pendingcnt; |
1713 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
533 | |
1714 | |
534 | if (p->w) |
1715 | if (expect_true (p->w)) |
|
|
1716 | { |
|
|
1717 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1718 | |
|
|
1719 | p->w->pending = 0; |
|
|
1720 | EV_CB_INVOKE (p->w, p->events); |
|
|
1721 | EV_FREQUENT_CHECK; |
|
|
1722 | } |
|
|
1723 | } |
|
|
1724 | } |
|
|
1725 | |
|
|
1726 | #if EV_IDLE_ENABLE |
|
|
1727 | void inline_size |
|
|
1728 | idle_reify (EV_P) |
|
|
1729 | { |
|
|
1730 | if (expect_false (idleall)) |
|
|
1731 | { |
|
|
1732 | int pri; |
|
|
1733 | |
|
|
1734 | for (pri = NUMPRI; pri--; ) |
535 | { |
1735 | { |
536 | p->w->pending = 0; |
1736 | if (pendingcnt [pri]) |
537 | p->w->cb (p->w, p->events); |
1737 | break; |
|
|
1738 | |
|
|
1739 | if (idlecnt [pri]) |
|
|
1740 | { |
|
|
1741 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
|
|
1742 | break; |
|
|
1743 | } |
538 | } |
1744 | } |
539 | } |
1745 | } |
540 | } |
1746 | } |
|
|
1747 | #endif |
541 | |
1748 | |
542 | static void |
1749 | void inline_size |
543 | timers_reify (void) |
1750 | timers_reify (EV_P) |
544 | { |
1751 | { |
|
|
1752 | EV_FREQUENT_CHECK; |
|
|
1753 | |
545 | while (timercnt && timers [0]->at <= now) |
1754 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
546 | { |
1755 | { |
547 | struct ev_timer *w = timers [0]; |
1756 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
1757 | |
|
|
1758 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
548 | |
1759 | |
549 | /* first reschedule or stop timer */ |
1760 | /* first reschedule or stop timer */ |
550 | if (w->repeat) |
1761 | if (w->repeat) |
551 | { |
1762 | { |
|
|
1763 | ev_at (w) += w->repeat; |
|
|
1764 | if (ev_at (w) < mn_now) |
|
|
1765 | ev_at (w) = mn_now; |
|
|
1766 | |
552 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1767 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
553 | w->at = now + w->repeat; |
1768 | |
|
|
1769 | ANHE_at_cache (timers [HEAP0]); |
554 | downheap ((WT *)timers, timercnt, 0); |
1770 | downheap (timers, timercnt, HEAP0); |
555 | } |
1771 | } |
556 | else |
1772 | else |
557 | ev_timer_stop (w); /* nonrepeating: stop timer */ |
1773 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
558 | |
1774 | |
|
|
1775 | EV_FREQUENT_CHECK; |
559 | event ((W)w, EV_TIMEOUT); |
1776 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
560 | } |
1777 | } |
561 | } |
1778 | } |
562 | |
1779 | |
563 | static void |
1780 | #if EV_PERIODIC_ENABLE |
|
|
1781 | void inline_size |
564 | periodics_reify (void) |
1782 | periodics_reify (EV_P) |
565 | { |
1783 | { |
|
|
1784 | EV_FREQUENT_CHECK; |
|
|
1785 | |
566 | while (periodiccnt && periodics [0]->at <= ev_now) |
1786 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
567 | { |
1787 | { |
568 | struct ev_periodic *w = periodics [0]; |
1788 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
1789 | |
|
|
1790 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
569 | |
1791 | |
570 | /* first reschedule or stop timer */ |
1792 | /* first reschedule or stop timer */ |
571 | if (w->interval) |
1793 | if (w->reschedule_cb) |
572 | { |
1794 | { |
573 | w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval; |
1795 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
574 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now)); |
1796 | |
|
|
1797 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
1798 | |
|
|
1799 | ANHE_at_cache (periodics [HEAP0]); |
575 | downheap ((WT *)periodics, periodiccnt, 0); |
1800 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1801 | } |
|
|
1802 | else if (w->interval) |
|
|
1803 | { |
|
|
1804 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1805 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1806 | /* this might happen because of floating point inexactness */ |
|
|
1807 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1808 | { |
|
|
1809 | ev_at (w) += w->interval; |
|
|
1810 | |
|
|
1811 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1812 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1813 | /* has effectively asked to get triggered more often than possible */ |
|
|
1814 | if (ev_at (w) < ev_rt_now) |
|
|
1815 | ev_at (w) = ev_rt_now; |
|
|
1816 | } |
|
|
1817 | |
|
|
1818 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1819 | downheap (periodics, periodiccnt, HEAP0); |
576 | } |
1820 | } |
577 | else |
1821 | else |
578 | ev_periodic_stop (w); /* nonrepeating: stop timer */ |
1822 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
579 | |
1823 | |
|
|
1824 | EV_FREQUENT_CHECK; |
580 | event ((W)w, EV_PERIODIC); |
1825 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
581 | } |
1826 | } |
582 | } |
1827 | } |
583 | |
1828 | |
584 | static void |
1829 | static void noinline |
585 | periodics_reschedule (ev_tstamp diff) |
1830 | periodics_reschedule (EV_P) |
586 | { |
1831 | { |
587 | int i; |
1832 | int i; |
588 | |
1833 | |
589 | /* adjust periodics after time jump */ |
1834 | /* adjust periodics after time jump */ |
590 | for (i = 0; i < periodiccnt; ++i) |
1835 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
591 | { |
1836 | { |
592 | struct ev_periodic *w = periodics [i]; |
1837 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
593 | |
1838 | |
|
|
1839 | if (w->reschedule_cb) |
|
|
1840 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
594 | if (w->interval) |
1841 | else if (w->interval) |
|
|
1842 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1843 | |
|
|
1844 | ANHE_at_cache (periodics [i]); |
|
|
1845 | } |
|
|
1846 | |
|
|
1847 | reheap (periodics, periodiccnt); |
|
|
1848 | } |
|
|
1849 | #endif |
|
|
1850 | |
|
|
1851 | void inline_speed |
|
|
1852 | time_update (EV_P_ ev_tstamp max_block) |
|
|
1853 | { |
|
|
1854 | int i; |
|
|
1855 | |
|
|
1856 | #if EV_USE_MONOTONIC |
|
|
1857 | if (expect_true (have_monotonic)) |
|
|
1858 | { |
|
|
1859 | ev_tstamp odiff = rtmn_diff; |
|
|
1860 | |
|
|
1861 | mn_now = get_clock (); |
|
|
1862 | |
|
|
1863 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
1864 | /* interpolate in the meantime */ |
|
|
1865 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
595 | { |
1866 | { |
596 | ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval; |
1867 | ev_rt_now = rtmn_diff + mn_now; |
|
|
1868 | return; |
|
|
1869 | } |
597 | |
1870 | |
598 | if (fabs (diff) >= 1e-4) |
1871 | now_floor = mn_now; |
|
|
1872 | ev_rt_now = ev_time (); |
|
|
1873 | |
|
|
1874 | /* loop a few times, before making important decisions. |
|
|
1875 | * on the choice of "4": one iteration isn't enough, |
|
|
1876 | * in case we get preempted during the calls to |
|
|
1877 | * ev_time and get_clock. a second call is almost guaranteed |
|
|
1878 | * to succeed in that case, though. and looping a few more times |
|
|
1879 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1880 | * in the unlikely event of having been preempted here. |
|
|
1881 | */ |
|
|
1882 | for (i = 4; --i; ) |
|
|
1883 | { |
|
|
1884 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1885 | |
|
|
1886 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
|
|
1887 | return; /* all is well */ |
|
|
1888 | |
|
|
1889 | ev_rt_now = ev_time (); |
|
|
1890 | mn_now = get_clock (); |
|
|
1891 | now_floor = mn_now; |
|
|
1892 | } |
|
|
1893 | |
|
|
1894 | # if EV_PERIODIC_ENABLE |
|
|
1895 | periodics_reschedule (EV_A); |
|
|
1896 | # endif |
|
|
1897 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1898 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1899 | } |
|
|
1900 | else |
|
|
1901 | #endif |
|
|
1902 | { |
|
|
1903 | ev_rt_now = ev_time (); |
|
|
1904 | |
|
|
1905 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
|
|
1906 | { |
|
|
1907 | #if EV_PERIODIC_ENABLE |
|
|
1908 | periodics_reschedule (EV_A); |
|
|
1909 | #endif |
|
|
1910 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1911 | for (i = 0; i < timercnt; ++i) |
599 | { |
1912 | { |
600 | ev_periodic_stop (w); |
1913 | ANHE *he = timers + i + HEAP0; |
601 | ev_periodic_start (w); |
1914 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
602 | |
1915 | ANHE_at_cache (*he); |
603 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
|
|
604 | } |
1916 | } |
605 | } |
1917 | } |
606 | } |
|
|
607 | } |
|
|
608 | |
1918 | |
609 | static void |
1919 | mn_now = ev_rt_now; |
610 | time_update (void) |
|
|
611 | { |
|
|
612 | int i; |
|
|
613 | |
|
|
614 | ev_now = ev_time (); |
|
|
615 | |
|
|
616 | if (have_monotonic) |
|
|
617 | { |
1920 | } |
618 | ev_tstamp odiff = diff; |
1921 | } |
619 | |
1922 | |
620 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
1923 | void |
|
|
1924 | ev_ref (EV_P) |
|
|
1925 | { |
|
|
1926 | ++activecnt; |
|
|
1927 | } |
|
|
1928 | |
|
|
1929 | void |
|
|
1930 | ev_unref (EV_P) |
|
|
1931 | { |
|
|
1932 | --activecnt; |
|
|
1933 | } |
|
|
1934 | |
|
|
1935 | void |
|
|
1936 | ev_now_update (EV_P) |
|
|
1937 | { |
|
|
1938 | time_update (EV_A_ 1e100); |
|
|
1939 | } |
|
|
1940 | |
|
|
1941 | static int loop_done; |
|
|
1942 | |
|
|
1943 | void |
|
|
1944 | ev_loop (EV_P_ int flags) |
|
|
1945 | { |
|
|
1946 | loop_done = EVUNLOOP_CANCEL; |
|
|
1947 | |
|
|
1948 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
|
|
1949 | |
|
|
1950 | do |
|
|
1951 | { |
|
|
1952 | #if EV_VERIFY >= 2 |
|
|
1953 | ev_loop_verify (EV_A); |
|
|
1954 | #endif |
|
|
1955 | |
|
|
1956 | #ifndef _WIN32 |
|
|
1957 | if (expect_false (curpid)) /* penalise the forking check even more */ |
|
|
1958 | if (expect_false (getpid () != curpid)) |
|
|
1959 | { |
|
|
1960 | curpid = getpid (); |
|
|
1961 | postfork = 1; |
|
|
1962 | } |
|
|
1963 | #endif |
|
|
1964 | |
|
|
1965 | #if EV_FORK_ENABLE |
|
|
1966 | /* we might have forked, so queue fork handlers */ |
|
|
1967 | if (expect_false (postfork)) |
|
|
1968 | if (forkcnt) |
|
|
1969 | { |
|
|
1970 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
|
|
1971 | call_pending (EV_A); |
|
|
1972 | } |
|
|
1973 | #endif |
|
|
1974 | |
|
|
1975 | /* queue prepare watchers (and execute them) */ |
|
|
1976 | if (expect_false (preparecnt)) |
621 | { |
1977 | { |
622 | now = get_clock (); |
1978 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
623 | diff = ev_now - now; |
1979 | call_pending (EV_A); |
624 | |
|
|
625 | if (fabs (odiff - diff) < MIN_TIMEJUMP) |
|
|
626 | return; /* all is well */ |
|
|
627 | |
|
|
628 | ev_now = ev_time (); |
|
|
629 | } |
1980 | } |
630 | |
1981 | |
631 | periodics_reschedule (diff - odiff); |
1982 | if (expect_false (!activecnt)) |
632 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1983 | break; |
633 | } |
|
|
634 | else |
|
|
635 | { |
|
|
636 | if (now > ev_now || now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP) |
|
|
637 | { |
|
|
638 | periodics_reschedule (ev_now - now); |
|
|
639 | |
1984 | |
640 | /* adjust timers. this is easy, as the offset is the same for all */ |
1985 | /* we might have forked, so reify kernel state if necessary */ |
641 | for (i = 0; i < timercnt; ++i) |
1986 | if (expect_false (postfork)) |
642 | timers [i]->at += diff; |
1987 | loop_fork (EV_A); |
643 | } |
|
|
644 | |
|
|
645 | now = ev_now; |
|
|
646 | } |
|
|
647 | } |
|
|
648 | |
|
|
649 | int ev_loop_done; |
|
|
650 | |
|
|
651 | void ev_loop (int flags) |
|
|
652 | { |
|
|
653 | double block; |
|
|
654 | ev_loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
|
|
655 | |
|
|
656 | do |
|
|
657 | { |
|
|
658 | /* queue check watchers (and execute them) */ |
|
|
659 | if (preparecnt) |
|
|
660 | { |
|
|
661 | queue_events ((W *)prepares, preparecnt, EV_PREPARE); |
|
|
662 | call_pending (); |
|
|
663 | } |
|
|
664 | |
1988 | |
665 | /* update fd-related kernel structures */ |
1989 | /* update fd-related kernel structures */ |
666 | fd_reify (); |
1990 | fd_reify (EV_A); |
667 | |
1991 | |
668 | /* calculate blocking time */ |
1992 | /* calculate blocking time */ |
|
|
1993 | { |
|
|
1994 | ev_tstamp waittime = 0.; |
|
|
1995 | ev_tstamp sleeptime = 0.; |
669 | |
1996 | |
670 | /* we only need this for !monotonic clockor timers, but as we basically |
1997 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
671 | always have timers, we just calculate it always */ |
|
|
672 | ev_now = ev_time (); |
|
|
673 | |
|
|
674 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
|
|
675 | block = 0.; |
|
|
676 | else |
|
|
677 | { |
1998 | { |
|
|
1999 | /* update time to cancel out callback processing overhead */ |
|
|
2000 | time_update (EV_A_ 1e100); |
|
|
2001 | |
678 | block = MAX_BLOCKTIME; |
2002 | waittime = MAX_BLOCKTIME; |
679 | |
2003 | |
680 | if (timercnt) |
2004 | if (timercnt) |
681 | { |
2005 | { |
682 | ev_tstamp to = timers [0]->at - (have_monotonic ? get_clock () : ev_now) + method_fudge; |
2006 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
683 | if (block > to) block = to; |
2007 | if (waittime > to) waittime = to; |
684 | } |
2008 | } |
685 | |
2009 | |
|
|
2010 | #if EV_PERIODIC_ENABLE |
686 | if (periodiccnt) |
2011 | if (periodiccnt) |
687 | { |
2012 | { |
688 | ev_tstamp to = periodics [0]->at - ev_now + method_fudge; |
2013 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
689 | if (block > to) block = to; |
2014 | if (waittime > to) waittime = to; |
690 | } |
2015 | } |
|
|
2016 | #endif |
691 | |
2017 | |
692 | if (block < 0.) block = 0.; |
2018 | if (expect_false (waittime < timeout_blocktime)) |
|
|
2019 | waittime = timeout_blocktime; |
|
|
2020 | |
|
|
2021 | sleeptime = waittime - backend_fudge; |
|
|
2022 | |
|
|
2023 | if (expect_true (sleeptime > io_blocktime)) |
|
|
2024 | sleeptime = io_blocktime; |
|
|
2025 | |
|
|
2026 | if (sleeptime) |
|
|
2027 | { |
|
|
2028 | ev_sleep (sleeptime); |
|
|
2029 | waittime -= sleeptime; |
|
|
2030 | } |
693 | } |
2031 | } |
694 | |
2032 | |
695 | method_poll (block); |
2033 | ++loop_count; |
|
|
2034 | backend_poll (EV_A_ waittime); |
696 | |
2035 | |
697 | /* update ev_now, do magic */ |
2036 | /* update ev_rt_now, do magic */ |
698 | time_update (); |
2037 | time_update (EV_A_ waittime + sleeptime); |
|
|
2038 | } |
699 | |
2039 | |
700 | /* queue pending timers and reschedule them */ |
2040 | /* queue pending timers and reschedule them */ |
701 | timers_reify (); /* relative timers called last */ |
2041 | timers_reify (EV_A); /* relative timers called last */ |
|
|
2042 | #if EV_PERIODIC_ENABLE |
702 | periodics_reify (); /* absolute timers called first */ |
2043 | periodics_reify (EV_A); /* absolute timers called first */ |
|
|
2044 | #endif |
703 | |
2045 | |
|
|
2046 | #if EV_IDLE_ENABLE |
704 | /* queue idle watchers unless io or timers are pending */ |
2047 | /* queue idle watchers unless other events are pending */ |
705 | if (!pendingcnt) |
2048 | idle_reify (EV_A); |
706 | queue_events ((W *)idles, idlecnt, EV_IDLE); |
2049 | #endif |
707 | |
2050 | |
708 | /* queue check watchers, to be executed first */ |
2051 | /* queue check watchers, to be executed first */ |
709 | if (checkcnt) |
2052 | if (expect_false (checkcnt)) |
710 | queue_events ((W *)checks, checkcnt, EV_CHECK); |
2053 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
711 | |
2054 | |
712 | call_pending (); |
2055 | call_pending (EV_A); |
713 | } |
2056 | } |
714 | while (!ev_loop_done); |
2057 | while (expect_true ( |
|
|
2058 | activecnt |
|
|
2059 | && !loop_done |
|
|
2060 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
2061 | )); |
715 | |
2062 | |
716 | if (ev_loop_done != 2) |
2063 | if (loop_done == EVUNLOOP_ONE) |
|
|
2064 | loop_done = EVUNLOOP_CANCEL; |
|
|
2065 | } |
|
|
2066 | |
|
|
2067 | void |
|
|
2068 | ev_unloop (EV_P_ int how) |
|
|
2069 | { |
717 | ev_loop_done = 0; |
2070 | loop_done = how; |
718 | } |
2071 | } |
719 | |
2072 | |
720 | /*****************************************************************************/ |
2073 | /*****************************************************************************/ |
721 | |
2074 | |
722 | static void |
2075 | void inline_size |
723 | wlist_add (WL *head, WL elem) |
2076 | wlist_add (WL *head, WL elem) |
724 | { |
2077 | { |
725 | elem->next = *head; |
2078 | elem->next = *head; |
726 | *head = elem; |
2079 | *head = elem; |
727 | } |
2080 | } |
728 | |
2081 | |
729 | static void |
2082 | void inline_size |
730 | wlist_del (WL *head, WL elem) |
2083 | wlist_del (WL *head, WL elem) |
731 | { |
2084 | { |
732 | while (*head) |
2085 | while (*head) |
733 | { |
2086 | { |
734 | if (*head == elem) |
2087 | if (*head == elem) |
… | |
… | |
739 | |
2092 | |
740 | head = &(*head)->next; |
2093 | head = &(*head)->next; |
741 | } |
2094 | } |
742 | } |
2095 | } |
743 | |
2096 | |
744 | static void |
2097 | void inline_speed |
745 | ev_clear_pending (W w) |
2098 | clear_pending (EV_P_ W w) |
746 | { |
2099 | { |
747 | if (w->pending) |
2100 | if (w->pending) |
748 | { |
2101 | { |
749 | pendings [w->pending - 1].w = 0; |
2102 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
750 | w->pending = 0; |
2103 | w->pending = 0; |
751 | } |
2104 | } |
752 | } |
2105 | } |
753 | |
2106 | |
754 | static void |
2107 | int |
|
|
2108 | ev_clear_pending (EV_P_ void *w) |
|
|
2109 | { |
|
|
2110 | W w_ = (W)w; |
|
|
2111 | int pending = w_->pending; |
|
|
2112 | |
|
|
2113 | if (expect_true (pending)) |
|
|
2114 | { |
|
|
2115 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2116 | w_->pending = 0; |
|
|
2117 | p->w = 0; |
|
|
2118 | return p->events; |
|
|
2119 | } |
|
|
2120 | else |
|
|
2121 | return 0; |
|
|
2122 | } |
|
|
2123 | |
|
|
2124 | void inline_size |
|
|
2125 | pri_adjust (EV_P_ W w) |
|
|
2126 | { |
|
|
2127 | int pri = w->priority; |
|
|
2128 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
|
|
2129 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
|
|
2130 | w->priority = pri; |
|
|
2131 | } |
|
|
2132 | |
|
|
2133 | void inline_speed |
755 | ev_start (W w, int active) |
2134 | ev_start (EV_P_ W w, int active) |
756 | { |
2135 | { |
|
|
2136 | pri_adjust (EV_A_ w); |
757 | w->active = active; |
2137 | w->active = active; |
|
|
2138 | ev_ref (EV_A); |
758 | } |
2139 | } |
759 | |
2140 | |
760 | static void |
2141 | void inline_size |
761 | ev_stop (W w) |
2142 | ev_stop (EV_P_ W w) |
762 | { |
2143 | { |
|
|
2144 | ev_unref (EV_A); |
763 | w->active = 0; |
2145 | w->active = 0; |
764 | } |
2146 | } |
765 | |
2147 | |
766 | /*****************************************************************************/ |
2148 | /*****************************************************************************/ |
767 | |
2149 | |
768 | void |
2150 | void noinline |
769 | ev_io_start (struct ev_io *w) |
2151 | ev_io_start (EV_P_ ev_io *w) |
770 | { |
2152 | { |
771 | int fd = w->fd; |
2153 | int fd = w->fd; |
772 | |
2154 | |
773 | if (ev_is_active (w)) |
2155 | if (expect_false (ev_is_active (w))) |
774 | return; |
2156 | return; |
775 | |
2157 | |
776 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2158 | assert (("ev_io_start called with negative fd", fd >= 0)); |
|
|
2159 | assert (("ev_io start called with illegal event mask", !(w->events & ~(EV_IOFDSET | EV_READ | EV_WRITE)))); |
777 | |
2160 | |
|
|
2161 | EV_FREQUENT_CHECK; |
|
|
2162 | |
778 | ev_start ((W)w, 1); |
2163 | ev_start (EV_A_ (W)w, 1); |
779 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
2164 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
780 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
2165 | wlist_add (&anfds[fd].head, (WL)w); |
781 | |
2166 | |
782 | fd_change (fd); |
2167 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
783 | } |
2168 | w->events &= ~EV_IOFDSET; |
784 | |
2169 | |
785 | void |
2170 | EV_FREQUENT_CHECK; |
|
|
2171 | } |
|
|
2172 | |
|
|
2173 | void noinline |
786 | ev_io_stop (struct ev_io *w) |
2174 | ev_io_stop (EV_P_ ev_io *w) |
787 | { |
2175 | { |
788 | ev_clear_pending ((W)w); |
2176 | clear_pending (EV_A_ (W)w); |
789 | if (!ev_is_active (w)) |
2177 | if (expect_false (!ev_is_active (w))) |
790 | return; |
2178 | return; |
791 | |
2179 | |
|
|
2180 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
2181 | |
|
|
2182 | EV_FREQUENT_CHECK; |
|
|
2183 | |
792 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
2184 | wlist_del (&anfds[w->fd].head, (WL)w); |
793 | ev_stop ((W)w); |
2185 | ev_stop (EV_A_ (W)w); |
794 | |
2186 | |
795 | fd_change (w->fd); |
2187 | fd_change (EV_A_ w->fd, 1); |
796 | } |
|
|
797 | |
2188 | |
798 | void |
2189 | EV_FREQUENT_CHECK; |
|
|
2190 | } |
|
|
2191 | |
|
|
2192 | void noinline |
799 | ev_timer_start (struct ev_timer *w) |
2193 | ev_timer_start (EV_P_ ev_timer *w) |
800 | { |
2194 | { |
801 | if (ev_is_active (w)) |
2195 | if (expect_false (ev_is_active (w))) |
802 | return; |
2196 | return; |
803 | |
2197 | |
804 | w->at += now; |
2198 | ev_at (w) += mn_now; |
805 | |
2199 | |
806 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2200 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
807 | |
2201 | |
808 | ev_start ((W)w, ++timercnt); |
2202 | EV_FREQUENT_CHECK; |
809 | array_needsize (timers, timermax, timercnt, ); |
|
|
810 | timers [timercnt - 1] = w; |
|
|
811 | upheap ((WT *)timers, timercnt - 1); |
|
|
812 | } |
|
|
813 | |
2203 | |
814 | void |
2204 | ++timercnt; |
|
|
2205 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
|
|
2206 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
|
|
2207 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
|
|
2208 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
2209 | upheap (timers, ev_active (w)); |
|
|
2210 | |
|
|
2211 | EV_FREQUENT_CHECK; |
|
|
2212 | |
|
|
2213 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
|
|
2214 | } |
|
|
2215 | |
|
|
2216 | void noinline |
815 | ev_timer_stop (struct ev_timer *w) |
2217 | ev_timer_stop (EV_P_ ev_timer *w) |
816 | { |
2218 | { |
817 | ev_clear_pending ((W)w); |
2219 | clear_pending (EV_A_ (W)w); |
818 | if (!ev_is_active (w)) |
2220 | if (expect_false (!ev_is_active (w))) |
819 | return; |
2221 | return; |
820 | |
2222 | |
821 | if (w->active < timercnt--) |
2223 | EV_FREQUENT_CHECK; |
|
|
2224 | |
|
|
2225 | { |
|
|
2226 | int active = ev_active (w); |
|
|
2227 | |
|
|
2228 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
2229 | |
|
|
2230 | --timercnt; |
|
|
2231 | |
|
|
2232 | if (expect_true (active < timercnt + HEAP0)) |
822 | { |
2233 | { |
823 | timers [w->active - 1] = timers [timercnt]; |
2234 | timers [active] = timers [timercnt + HEAP0]; |
824 | downheap ((WT *)timers, timercnt, w->active - 1); |
2235 | adjustheap (timers, timercnt, active); |
825 | } |
2236 | } |
|
|
2237 | } |
826 | |
2238 | |
827 | w->at = w->repeat; |
2239 | EV_FREQUENT_CHECK; |
828 | |
2240 | |
|
|
2241 | ev_at (w) -= mn_now; |
|
|
2242 | |
829 | ev_stop ((W)w); |
2243 | ev_stop (EV_A_ (W)w); |
830 | } |
2244 | } |
831 | |
2245 | |
832 | void |
2246 | void noinline |
833 | ev_timer_again (struct ev_timer *w) |
2247 | ev_timer_again (EV_P_ ev_timer *w) |
834 | { |
2248 | { |
|
|
2249 | EV_FREQUENT_CHECK; |
|
|
2250 | |
835 | if (ev_is_active (w)) |
2251 | if (ev_is_active (w)) |
836 | { |
2252 | { |
837 | if (w->repeat) |
2253 | if (w->repeat) |
838 | { |
2254 | { |
839 | w->at = now + w->repeat; |
2255 | ev_at (w) = mn_now + w->repeat; |
|
|
2256 | ANHE_at_cache (timers [ev_active (w)]); |
840 | downheap ((WT *)timers, timercnt, w->active - 1); |
2257 | adjustheap (timers, timercnt, ev_active (w)); |
841 | } |
2258 | } |
842 | else |
2259 | else |
843 | ev_timer_stop (w); |
2260 | ev_timer_stop (EV_A_ w); |
844 | } |
2261 | } |
845 | else if (w->repeat) |
2262 | else if (w->repeat) |
|
|
2263 | { |
|
|
2264 | ev_at (w) = w->repeat; |
846 | ev_timer_start (w); |
2265 | ev_timer_start (EV_A_ w); |
847 | } |
2266 | } |
848 | |
2267 | |
849 | void |
2268 | EV_FREQUENT_CHECK; |
|
|
2269 | } |
|
|
2270 | |
|
|
2271 | #if EV_PERIODIC_ENABLE |
|
|
2272 | void noinline |
850 | ev_periodic_start (struct ev_periodic *w) |
2273 | ev_periodic_start (EV_P_ ev_periodic *w) |
851 | { |
2274 | { |
852 | if (ev_is_active (w)) |
2275 | if (expect_false (ev_is_active (w))) |
853 | return; |
2276 | return; |
854 | |
2277 | |
|
|
2278 | if (w->reschedule_cb) |
|
|
2279 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2280 | else if (w->interval) |
|
|
2281 | { |
855 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2282 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
856 | |
|
|
857 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2283 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
858 | if (w->interval) |
|
|
859 | w->at += ceil ((ev_now - w->at) / w->interval) * w->interval; |
2284 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2285 | } |
|
|
2286 | else |
|
|
2287 | ev_at (w) = w->offset; |
860 | |
2288 | |
|
|
2289 | EV_FREQUENT_CHECK; |
|
|
2290 | |
|
|
2291 | ++periodiccnt; |
861 | ev_start ((W)w, ++periodiccnt); |
2292 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
862 | array_needsize (periodics, periodicmax, periodiccnt, ); |
2293 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
863 | periodics [periodiccnt - 1] = w; |
2294 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
864 | upheap ((WT *)periodics, periodiccnt - 1); |
2295 | ANHE_at_cache (periodics [ev_active (w)]); |
865 | } |
2296 | upheap (periodics, ev_active (w)); |
866 | |
2297 | |
867 | void |
2298 | EV_FREQUENT_CHECK; |
|
|
2299 | |
|
|
2300 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
|
|
2301 | } |
|
|
2302 | |
|
|
2303 | void noinline |
868 | ev_periodic_stop (struct ev_periodic *w) |
2304 | ev_periodic_stop (EV_P_ ev_periodic *w) |
869 | { |
2305 | { |
870 | ev_clear_pending ((W)w); |
2306 | clear_pending (EV_A_ (W)w); |
871 | if (!ev_is_active (w)) |
2307 | if (expect_false (!ev_is_active (w))) |
872 | return; |
2308 | return; |
873 | |
2309 | |
874 | if (w->active < periodiccnt--) |
2310 | EV_FREQUENT_CHECK; |
|
|
2311 | |
|
|
2312 | { |
|
|
2313 | int active = ev_active (w); |
|
|
2314 | |
|
|
2315 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
|
|
2316 | |
|
|
2317 | --periodiccnt; |
|
|
2318 | |
|
|
2319 | if (expect_true (active < periodiccnt + HEAP0)) |
875 | { |
2320 | { |
876 | periodics [w->active - 1] = periodics [periodiccnt]; |
2321 | periodics [active] = periodics [periodiccnt + HEAP0]; |
877 | downheap ((WT *)periodics, periodiccnt, w->active - 1); |
2322 | adjustheap (periodics, periodiccnt, active); |
878 | } |
2323 | } |
|
|
2324 | } |
879 | |
2325 | |
|
|
2326 | EV_FREQUENT_CHECK; |
|
|
2327 | |
880 | ev_stop ((W)w); |
2328 | ev_stop (EV_A_ (W)w); |
881 | } |
2329 | } |
882 | |
2330 | |
883 | void |
2331 | void noinline |
|
|
2332 | ev_periodic_again (EV_P_ ev_periodic *w) |
|
|
2333 | { |
|
|
2334 | /* TODO: use adjustheap and recalculation */ |
|
|
2335 | ev_periodic_stop (EV_A_ w); |
|
|
2336 | ev_periodic_start (EV_A_ w); |
|
|
2337 | } |
|
|
2338 | #endif |
|
|
2339 | |
|
|
2340 | #ifndef SA_RESTART |
|
|
2341 | # define SA_RESTART 0 |
|
|
2342 | #endif |
|
|
2343 | |
|
|
2344 | void noinline |
884 | ev_signal_start (struct ev_signal *w) |
2345 | ev_signal_start (EV_P_ ev_signal *w) |
885 | { |
2346 | { |
|
|
2347 | #if EV_MULTIPLICITY |
|
|
2348 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2349 | #endif |
886 | if (ev_is_active (w)) |
2350 | if (expect_false (ev_is_active (w))) |
887 | return; |
2351 | return; |
888 | |
2352 | |
889 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2353 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
890 | |
2354 | |
|
|
2355 | evpipe_init (EV_A); |
|
|
2356 | |
|
|
2357 | EV_FREQUENT_CHECK; |
|
|
2358 | |
|
|
2359 | { |
|
|
2360 | #ifndef _WIN32 |
|
|
2361 | sigset_t full, prev; |
|
|
2362 | sigfillset (&full); |
|
|
2363 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2364 | #endif |
|
|
2365 | |
|
|
2366 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
|
|
2367 | |
|
|
2368 | #ifndef _WIN32 |
|
|
2369 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
2370 | #endif |
|
|
2371 | } |
|
|
2372 | |
891 | ev_start ((W)w, 1); |
2373 | ev_start (EV_A_ (W)w, 1); |
892 | array_needsize (signals, signalmax, w->signum, signals_init); |
|
|
893 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
2374 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
894 | |
2375 | |
895 | if (!w->next) |
2376 | if (!((WL)w)->next) |
896 | { |
2377 | { |
|
|
2378 | #if _WIN32 |
|
|
2379 | signal (w->signum, ev_sighandler); |
|
|
2380 | #else |
897 | struct sigaction sa; |
2381 | struct sigaction sa; |
898 | sa.sa_handler = sighandler; |
2382 | sa.sa_handler = ev_sighandler; |
899 | sigfillset (&sa.sa_mask); |
2383 | sigfillset (&sa.sa_mask); |
900 | sa.sa_flags = 0; |
2384 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
901 | sigaction (w->signum, &sa, 0); |
2385 | sigaction (w->signum, &sa, 0); |
|
|
2386 | #endif |
902 | } |
2387 | } |
903 | } |
|
|
904 | |
2388 | |
905 | void |
2389 | EV_FREQUENT_CHECK; |
|
|
2390 | } |
|
|
2391 | |
|
|
2392 | void noinline |
906 | ev_signal_stop (struct ev_signal *w) |
2393 | ev_signal_stop (EV_P_ ev_signal *w) |
907 | { |
2394 | { |
908 | ev_clear_pending ((W)w); |
2395 | clear_pending (EV_A_ (W)w); |
909 | if (!ev_is_active (w)) |
2396 | if (expect_false (!ev_is_active (w))) |
910 | return; |
2397 | return; |
911 | |
2398 | |
|
|
2399 | EV_FREQUENT_CHECK; |
|
|
2400 | |
912 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
2401 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
913 | ev_stop ((W)w); |
2402 | ev_stop (EV_A_ (W)w); |
914 | |
2403 | |
915 | if (!signals [w->signum - 1].head) |
2404 | if (!signals [w->signum - 1].head) |
916 | signal (w->signum, SIG_DFL); |
2405 | signal (w->signum, SIG_DFL); |
917 | } |
|
|
918 | |
2406 | |
|
|
2407 | EV_FREQUENT_CHECK; |
|
|
2408 | } |
|
|
2409 | |
919 | void |
2410 | void |
920 | ev_idle_start (struct ev_idle *w) |
2411 | ev_child_start (EV_P_ ev_child *w) |
921 | { |
2412 | { |
|
|
2413 | #if EV_MULTIPLICITY |
|
|
2414 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2415 | #endif |
922 | if (ev_is_active (w)) |
2416 | if (expect_false (ev_is_active (w))) |
923 | return; |
2417 | return; |
924 | |
2418 | |
925 | ev_start ((W)w, ++idlecnt); |
2419 | EV_FREQUENT_CHECK; |
926 | array_needsize (idles, idlemax, idlecnt, ); |
|
|
927 | idles [idlecnt - 1] = w; |
|
|
928 | } |
|
|
929 | |
2420 | |
|
|
2421 | ev_start (EV_A_ (W)w, 1); |
|
|
2422 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
2423 | |
|
|
2424 | EV_FREQUENT_CHECK; |
|
|
2425 | } |
|
|
2426 | |
930 | void |
2427 | void |
931 | ev_idle_stop (struct ev_idle *w) |
2428 | ev_child_stop (EV_P_ ev_child *w) |
932 | { |
2429 | { |
933 | ev_clear_pending ((W)w); |
2430 | clear_pending (EV_A_ (W)w); |
934 | if (ev_is_active (w)) |
2431 | if (expect_false (!ev_is_active (w))) |
935 | return; |
2432 | return; |
936 | |
2433 | |
937 | idles [w->active - 1] = idles [--idlecnt]; |
2434 | EV_FREQUENT_CHECK; |
|
|
2435 | |
|
|
2436 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
938 | ev_stop ((W)w); |
2437 | ev_stop (EV_A_ (W)w); |
939 | } |
|
|
940 | |
2438 | |
941 | void |
2439 | EV_FREQUENT_CHECK; |
942 | ev_prepare_start (struct ev_prepare *w) |
2440 | } |
|
|
2441 | |
|
|
2442 | #if EV_STAT_ENABLE |
|
|
2443 | |
|
|
2444 | # ifdef _WIN32 |
|
|
2445 | # undef lstat |
|
|
2446 | # define lstat(a,b) _stati64 (a,b) |
|
|
2447 | # endif |
|
|
2448 | |
|
|
2449 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2450 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
|
|
2451 | #define MIN_STAT_INTERVAL 0.1074891 |
|
|
2452 | |
|
|
2453 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
|
|
2454 | |
|
|
2455 | #if EV_USE_INOTIFY |
|
|
2456 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
2457 | |
|
|
2458 | static void noinline |
|
|
2459 | infy_add (EV_P_ ev_stat *w) |
943 | { |
2460 | { |
944 | if (ev_is_active (w)) |
2461 | 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); |
|
|
2462 | |
|
|
2463 | if (w->wd < 0) |
|
|
2464 | { |
|
|
2465 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
2466 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2467 | |
|
|
2468 | /* monitor some parent directory for speedup hints */ |
|
|
2469 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
|
|
2470 | /* but an efficiency issue only */ |
|
|
2471 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
|
|
2472 | { |
|
|
2473 | char path [4096]; |
|
|
2474 | strcpy (path, w->path); |
|
|
2475 | |
|
|
2476 | do |
|
|
2477 | { |
|
|
2478 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
|
|
2479 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
|
|
2480 | |
|
|
2481 | char *pend = strrchr (path, '/'); |
|
|
2482 | |
|
|
2483 | if (!pend || pend == path) |
|
|
2484 | break; |
|
|
2485 | |
|
|
2486 | *pend = 0; |
|
|
2487 | w->wd = inotify_add_watch (fs_fd, path, mask); |
|
|
2488 | } |
|
|
2489 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
|
|
2490 | } |
|
|
2491 | } |
|
|
2492 | |
|
|
2493 | if (w->wd >= 0) |
|
|
2494 | { |
|
|
2495 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2496 | |
|
|
2497 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2498 | /* unless the filesystem it known to be local, we therefore still poll */ |
|
|
2499 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2500 | struct statfs sfs; |
|
|
2501 | |
|
|
2502 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2503 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2504 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2505 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2506 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2507 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2508 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2509 | return; |
|
|
2510 | |
|
|
2511 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2512 | ev_timer_again (EV_A_ &w->timer); |
|
|
2513 | } |
|
|
2514 | } |
|
|
2515 | |
|
|
2516 | static void noinline |
|
|
2517 | infy_del (EV_P_ ev_stat *w) |
|
|
2518 | { |
|
|
2519 | int slot; |
|
|
2520 | int wd = w->wd; |
|
|
2521 | |
|
|
2522 | if (wd < 0) |
945 | return; |
2523 | return; |
946 | |
2524 | |
|
|
2525 | w->wd = -2; |
|
|
2526 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
|
|
2527 | wlist_del (&fs_hash [slot].head, (WL)w); |
|
|
2528 | |
|
|
2529 | /* remove this watcher, if others are watching it, they will rearm */ |
|
|
2530 | inotify_rm_watch (fs_fd, wd); |
|
|
2531 | } |
|
|
2532 | |
|
|
2533 | static void noinline |
|
|
2534 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
|
|
2535 | { |
|
|
2536 | if (slot < 0) |
|
|
2537 | /* overflow, need to check for all hash slots */ |
|
|
2538 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2539 | infy_wd (EV_A_ slot, wd, ev); |
|
|
2540 | else |
|
|
2541 | { |
|
|
2542 | WL w_; |
|
|
2543 | |
|
|
2544 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
|
|
2545 | { |
|
|
2546 | ev_stat *w = (ev_stat *)w_; |
|
|
2547 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
|
|
2548 | |
|
|
2549 | if (w->wd == wd || wd == -1) |
|
|
2550 | { |
|
|
2551 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
|
|
2552 | { |
|
|
2553 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2554 | w->wd = -1; |
|
|
2555 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2556 | } |
|
|
2557 | |
|
|
2558 | stat_timer_cb (EV_A_ &w->timer, 0); |
|
|
2559 | } |
|
|
2560 | } |
|
|
2561 | } |
|
|
2562 | } |
|
|
2563 | |
|
|
2564 | static void |
|
|
2565 | infy_cb (EV_P_ ev_io *w, int revents) |
|
|
2566 | { |
|
|
2567 | char buf [EV_INOTIFY_BUFSIZE]; |
|
|
2568 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2569 | int ofs; |
|
|
2570 | int len = read (fs_fd, buf, sizeof (buf)); |
|
|
2571 | |
|
|
2572 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
|
|
2573 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
2574 | } |
|
|
2575 | |
|
|
2576 | void inline_size |
|
|
2577 | check_2625 (EV_P) |
|
|
2578 | { |
|
|
2579 | /* kernels < 2.6.25 are borked |
|
|
2580 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
2581 | */ |
|
|
2582 | struct utsname buf; |
|
|
2583 | int major, minor, micro; |
|
|
2584 | |
|
|
2585 | if (uname (&buf)) |
|
|
2586 | return; |
|
|
2587 | |
|
|
2588 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2589 | return; |
|
|
2590 | |
|
|
2591 | if (major < 2 |
|
|
2592 | || (major == 2 && minor < 6) |
|
|
2593 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2594 | return; |
|
|
2595 | |
|
|
2596 | fs_2625 = 1; |
|
|
2597 | } |
|
|
2598 | |
|
|
2599 | void inline_size |
|
|
2600 | infy_init (EV_P) |
|
|
2601 | { |
|
|
2602 | if (fs_fd != -2) |
|
|
2603 | return; |
|
|
2604 | |
|
|
2605 | fs_fd = -1; |
|
|
2606 | |
|
|
2607 | check_2625 (EV_A); |
|
|
2608 | |
|
|
2609 | fs_fd = inotify_init (); |
|
|
2610 | |
|
|
2611 | if (fs_fd >= 0) |
|
|
2612 | { |
|
|
2613 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
|
|
2614 | ev_set_priority (&fs_w, EV_MAXPRI); |
|
|
2615 | ev_io_start (EV_A_ &fs_w); |
|
|
2616 | } |
|
|
2617 | } |
|
|
2618 | |
|
|
2619 | void inline_size |
|
|
2620 | infy_fork (EV_P) |
|
|
2621 | { |
|
|
2622 | int slot; |
|
|
2623 | |
|
|
2624 | if (fs_fd < 0) |
|
|
2625 | return; |
|
|
2626 | |
|
|
2627 | close (fs_fd); |
|
|
2628 | fs_fd = inotify_init (); |
|
|
2629 | |
|
|
2630 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2631 | { |
|
|
2632 | WL w_ = fs_hash [slot].head; |
|
|
2633 | fs_hash [slot].head = 0; |
|
|
2634 | |
|
|
2635 | while (w_) |
|
|
2636 | { |
|
|
2637 | ev_stat *w = (ev_stat *)w_; |
|
|
2638 | w_ = w_->next; /* lets us add this watcher */ |
|
|
2639 | |
|
|
2640 | w->wd = -1; |
|
|
2641 | |
|
|
2642 | if (fs_fd >= 0) |
|
|
2643 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2644 | else |
|
|
2645 | ev_timer_again (EV_A_ &w->timer); |
|
|
2646 | } |
|
|
2647 | } |
|
|
2648 | } |
|
|
2649 | |
|
|
2650 | #endif |
|
|
2651 | |
|
|
2652 | #ifdef _WIN32 |
|
|
2653 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
2654 | #else |
|
|
2655 | # define EV_LSTAT(p,b) lstat (p, b) |
|
|
2656 | #endif |
|
|
2657 | |
|
|
2658 | void |
|
|
2659 | ev_stat_stat (EV_P_ ev_stat *w) |
|
|
2660 | { |
|
|
2661 | if (lstat (w->path, &w->attr) < 0) |
|
|
2662 | w->attr.st_nlink = 0; |
|
|
2663 | else if (!w->attr.st_nlink) |
|
|
2664 | w->attr.st_nlink = 1; |
|
|
2665 | } |
|
|
2666 | |
|
|
2667 | static void noinline |
|
|
2668 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
2669 | { |
|
|
2670 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
2671 | |
|
|
2672 | /* we copy this here each the time so that */ |
|
|
2673 | /* prev has the old value when the callback gets invoked */ |
|
|
2674 | w->prev = w->attr; |
|
|
2675 | ev_stat_stat (EV_A_ w); |
|
|
2676 | |
|
|
2677 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
|
|
2678 | if ( |
|
|
2679 | w->prev.st_dev != w->attr.st_dev |
|
|
2680 | || w->prev.st_ino != w->attr.st_ino |
|
|
2681 | || w->prev.st_mode != w->attr.st_mode |
|
|
2682 | || w->prev.st_nlink != w->attr.st_nlink |
|
|
2683 | || w->prev.st_uid != w->attr.st_uid |
|
|
2684 | || w->prev.st_gid != w->attr.st_gid |
|
|
2685 | || w->prev.st_rdev != w->attr.st_rdev |
|
|
2686 | || w->prev.st_size != w->attr.st_size |
|
|
2687 | || w->prev.st_atime != w->attr.st_atime |
|
|
2688 | || w->prev.st_mtime != w->attr.st_mtime |
|
|
2689 | || w->prev.st_ctime != w->attr.st_ctime |
|
|
2690 | ) { |
|
|
2691 | #if EV_USE_INOTIFY |
|
|
2692 | if (fs_fd >= 0) |
|
|
2693 | { |
|
|
2694 | infy_del (EV_A_ w); |
|
|
2695 | infy_add (EV_A_ w); |
|
|
2696 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2697 | } |
|
|
2698 | #endif |
|
|
2699 | |
|
|
2700 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
2701 | } |
|
|
2702 | } |
|
|
2703 | |
|
|
2704 | void |
|
|
2705 | ev_stat_start (EV_P_ ev_stat *w) |
|
|
2706 | { |
|
|
2707 | if (expect_false (ev_is_active (w))) |
|
|
2708 | return; |
|
|
2709 | |
|
|
2710 | ev_stat_stat (EV_A_ w); |
|
|
2711 | |
|
|
2712 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
|
|
2713 | w->interval = MIN_STAT_INTERVAL; |
|
|
2714 | |
|
|
2715 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
|
|
2716 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
2717 | |
|
|
2718 | #if EV_USE_INOTIFY |
|
|
2719 | infy_init (EV_A); |
|
|
2720 | |
|
|
2721 | if (fs_fd >= 0) |
|
|
2722 | infy_add (EV_A_ w); |
|
|
2723 | else |
|
|
2724 | #endif |
|
|
2725 | ev_timer_again (EV_A_ &w->timer); |
|
|
2726 | |
|
|
2727 | ev_start (EV_A_ (W)w, 1); |
|
|
2728 | |
|
|
2729 | EV_FREQUENT_CHECK; |
|
|
2730 | } |
|
|
2731 | |
|
|
2732 | void |
|
|
2733 | ev_stat_stop (EV_P_ ev_stat *w) |
|
|
2734 | { |
|
|
2735 | clear_pending (EV_A_ (W)w); |
|
|
2736 | if (expect_false (!ev_is_active (w))) |
|
|
2737 | return; |
|
|
2738 | |
|
|
2739 | EV_FREQUENT_CHECK; |
|
|
2740 | |
|
|
2741 | #if EV_USE_INOTIFY |
|
|
2742 | infy_del (EV_A_ w); |
|
|
2743 | #endif |
|
|
2744 | ev_timer_stop (EV_A_ &w->timer); |
|
|
2745 | |
|
|
2746 | ev_stop (EV_A_ (W)w); |
|
|
2747 | |
|
|
2748 | EV_FREQUENT_CHECK; |
|
|
2749 | } |
|
|
2750 | #endif |
|
|
2751 | |
|
|
2752 | #if EV_IDLE_ENABLE |
|
|
2753 | void |
|
|
2754 | ev_idle_start (EV_P_ ev_idle *w) |
|
|
2755 | { |
|
|
2756 | if (expect_false (ev_is_active (w))) |
|
|
2757 | return; |
|
|
2758 | |
|
|
2759 | pri_adjust (EV_A_ (W)w); |
|
|
2760 | |
|
|
2761 | EV_FREQUENT_CHECK; |
|
|
2762 | |
|
|
2763 | { |
|
|
2764 | int active = ++idlecnt [ABSPRI (w)]; |
|
|
2765 | |
|
|
2766 | ++idleall; |
|
|
2767 | ev_start (EV_A_ (W)w, active); |
|
|
2768 | |
|
|
2769 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
|
|
2770 | idles [ABSPRI (w)][active - 1] = w; |
|
|
2771 | } |
|
|
2772 | |
|
|
2773 | EV_FREQUENT_CHECK; |
|
|
2774 | } |
|
|
2775 | |
|
|
2776 | void |
|
|
2777 | ev_idle_stop (EV_P_ ev_idle *w) |
|
|
2778 | { |
|
|
2779 | clear_pending (EV_A_ (W)w); |
|
|
2780 | if (expect_false (!ev_is_active (w))) |
|
|
2781 | return; |
|
|
2782 | |
|
|
2783 | EV_FREQUENT_CHECK; |
|
|
2784 | |
|
|
2785 | { |
|
|
2786 | int active = ev_active (w); |
|
|
2787 | |
|
|
2788 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
|
|
2789 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
|
|
2790 | |
|
|
2791 | ev_stop (EV_A_ (W)w); |
|
|
2792 | --idleall; |
|
|
2793 | } |
|
|
2794 | |
|
|
2795 | EV_FREQUENT_CHECK; |
|
|
2796 | } |
|
|
2797 | #endif |
|
|
2798 | |
|
|
2799 | void |
|
|
2800 | ev_prepare_start (EV_P_ ev_prepare *w) |
|
|
2801 | { |
|
|
2802 | if (expect_false (ev_is_active (w))) |
|
|
2803 | return; |
|
|
2804 | |
|
|
2805 | EV_FREQUENT_CHECK; |
|
|
2806 | |
947 | ev_start ((W)w, ++preparecnt); |
2807 | ev_start (EV_A_ (W)w, ++preparecnt); |
948 | array_needsize (prepares, preparemax, preparecnt, ); |
2808 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
949 | prepares [preparecnt - 1] = w; |
2809 | prepares [preparecnt - 1] = w; |
950 | } |
|
|
951 | |
2810 | |
|
|
2811 | EV_FREQUENT_CHECK; |
|
|
2812 | } |
|
|
2813 | |
952 | void |
2814 | void |
953 | ev_prepare_stop (struct ev_prepare *w) |
2815 | ev_prepare_stop (EV_P_ ev_prepare *w) |
954 | { |
2816 | { |
955 | ev_clear_pending ((W)w); |
2817 | clear_pending (EV_A_ (W)w); |
956 | if (ev_is_active (w)) |
2818 | if (expect_false (!ev_is_active (w))) |
957 | return; |
2819 | return; |
958 | |
2820 | |
|
|
2821 | EV_FREQUENT_CHECK; |
|
|
2822 | |
|
|
2823 | { |
|
|
2824 | int active = ev_active (w); |
|
|
2825 | |
959 | prepares [w->active - 1] = prepares [--preparecnt]; |
2826 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
2827 | ev_active (prepares [active - 1]) = active; |
|
|
2828 | } |
|
|
2829 | |
960 | ev_stop ((W)w); |
2830 | ev_stop (EV_A_ (W)w); |
961 | } |
|
|
962 | |
2831 | |
|
|
2832 | EV_FREQUENT_CHECK; |
|
|
2833 | } |
|
|
2834 | |
963 | void |
2835 | void |
964 | ev_check_start (struct ev_check *w) |
2836 | ev_check_start (EV_P_ ev_check *w) |
965 | { |
2837 | { |
966 | if (ev_is_active (w)) |
2838 | if (expect_false (ev_is_active (w))) |
967 | return; |
2839 | return; |
968 | |
2840 | |
|
|
2841 | EV_FREQUENT_CHECK; |
|
|
2842 | |
969 | ev_start ((W)w, ++checkcnt); |
2843 | ev_start (EV_A_ (W)w, ++checkcnt); |
970 | array_needsize (checks, checkmax, checkcnt, ); |
2844 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
971 | checks [checkcnt - 1] = w; |
2845 | checks [checkcnt - 1] = w; |
972 | } |
|
|
973 | |
2846 | |
|
|
2847 | EV_FREQUENT_CHECK; |
|
|
2848 | } |
|
|
2849 | |
974 | void |
2850 | void |
975 | ev_check_stop (struct ev_check *w) |
2851 | ev_check_stop (EV_P_ ev_check *w) |
976 | { |
2852 | { |
977 | ev_clear_pending ((W)w); |
2853 | clear_pending (EV_A_ (W)w); |
978 | if (ev_is_active (w)) |
2854 | if (expect_false (!ev_is_active (w))) |
979 | return; |
2855 | return; |
980 | |
2856 | |
|
|
2857 | EV_FREQUENT_CHECK; |
|
|
2858 | |
|
|
2859 | { |
|
|
2860 | int active = ev_active (w); |
|
|
2861 | |
981 | checks [w->active - 1] = checks [--checkcnt]; |
2862 | checks [active - 1] = checks [--checkcnt]; |
|
|
2863 | ev_active (checks [active - 1]) = active; |
|
|
2864 | } |
|
|
2865 | |
982 | ev_stop ((W)w); |
2866 | ev_stop (EV_A_ (W)w); |
983 | } |
|
|
984 | |
2867 | |
985 | void |
2868 | EV_FREQUENT_CHECK; |
986 | ev_child_start (struct ev_child *w) |
2869 | } |
|
|
2870 | |
|
|
2871 | #if EV_EMBED_ENABLE |
|
|
2872 | void noinline |
|
|
2873 | ev_embed_sweep (EV_P_ ev_embed *w) |
987 | { |
2874 | { |
|
|
2875 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2876 | } |
|
|
2877 | |
|
|
2878 | static void |
|
|
2879 | embed_io_cb (EV_P_ ev_io *io, int revents) |
|
|
2880 | { |
|
|
2881 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
|
|
2882 | |
988 | if (ev_is_active (w)) |
2883 | if (ev_cb (w)) |
|
|
2884 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
|
|
2885 | else |
|
|
2886 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2887 | } |
|
|
2888 | |
|
|
2889 | static void |
|
|
2890 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
2891 | { |
|
|
2892 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
2893 | |
|
|
2894 | { |
|
|
2895 | struct ev_loop *loop = w->other; |
|
|
2896 | |
|
|
2897 | while (fdchangecnt) |
|
|
2898 | { |
|
|
2899 | fd_reify (EV_A); |
|
|
2900 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2901 | } |
|
|
2902 | } |
|
|
2903 | } |
|
|
2904 | |
|
|
2905 | static void |
|
|
2906 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
2907 | { |
|
|
2908 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
2909 | |
|
|
2910 | { |
|
|
2911 | struct ev_loop *loop = w->other; |
|
|
2912 | |
|
|
2913 | ev_loop_fork (EV_A); |
|
|
2914 | } |
|
|
2915 | } |
|
|
2916 | |
|
|
2917 | #if 0 |
|
|
2918 | static void |
|
|
2919 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
2920 | { |
|
|
2921 | ev_idle_stop (EV_A_ idle); |
|
|
2922 | } |
|
|
2923 | #endif |
|
|
2924 | |
|
|
2925 | void |
|
|
2926 | ev_embed_start (EV_P_ ev_embed *w) |
|
|
2927 | { |
|
|
2928 | if (expect_false (ev_is_active (w))) |
989 | return; |
2929 | return; |
990 | |
2930 | |
|
|
2931 | { |
|
|
2932 | struct ev_loop *loop = w->other; |
|
|
2933 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
|
|
2934 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
|
|
2935 | } |
|
|
2936 | |
|
|
2937 | EV_FREQUENT_CHECK; |
|
|
2938 | |
|
|
2939 | ev_set_priority (&w->io, ev_priority (w)); |
|
|
2940 | ev_io_start (EV_A_ &w->io); |
|
|
2941 | |
|
|
2942 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
2943 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
2944 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
2945 | |
|
|
2946 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
2947 | ev_fork_start (EV_A_ &w->fork); |
|
|
2948 | |
|
|
2949 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
2950 | |
991 | ev_start ((W)w, 1); |
2951 | ev_start (EV_A_ (W)w, 1); |
992 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
|
|
993 | } |
|
|
994 | |
2952 | |
|
|
2953 | EV_FREQUENT_CHECK; |
|
|
2954 | } |
|
|
2955 | |
995 | void |
2956 | void |
996 | ev_child_stop (struct ev_child *w) |
2957 | ev_embed_stop (EV_P_ ev_embed *w) |
997 | { |
2958 | { |
998 | ev_clear_pending ((W)w); |
2959 | clear_pending (EV_A_ (W)w); |
999 | if (ev_is_active (w)) |
2960 | if (expect_false (!ev_is_active (w))) |
1000 | return; |
2961 | return; |
1001 | |
2962 | |
1002 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
2963 | EV_FREQUENT_CHECK; |
|
|
2964 | |
|
|
2965 | ev_io_stop (EV_A_ &w->io); |
|
|
2966 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
2967 | ev_fork_stop (EV_A_ &w->fork); |
|
|
2968 | |
|
|
2969 | EV_FREQUENT_CHECK; |
|
|
2970 | } |
|
|
2971 | #endif |
|
|
2972 | |
|
|
2973 | #if EV_FORK_ENABLE |
|
|
2974 | void |
|
|
2975 | ev_fork_start (EV_P_ ev_fork *w) |
|
|
2976 | { |
|
|
2977 | if (expect_false (ev_is_active (w))) |
|
|
2978 | return; |
|
|
2979 | |
|
|
2980 | EV_FREQUENT_CHECK; |
|
|
2981 | |
|
|
2982 | ev_start (EV_A_ (W)w, ++forkcnt); |
|
|
2983 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
|
|
2984 | forks [forkcnt - 1] = w; |
|
|
2985 | |
|
|
2986 | EV_FREQUENT_CHECK; |
|
|
2987 | } |
|
|
2988 | |
|
|
2989 | void |
|
|
2990 | ev_fork_stop (EV_P_ ev_fork *w) |
|
|
2991 | { |
|
|
2992 | clear_pending (EV_A_ (W)w); |
|
|
2993 | if (expect_false (!ev_is_active (w))) |
|
|
2994 | return; |
|
|
2995 | |
|
|
2996 | EV_FREQUENT_CHECK; |
|
|
2997 | |
|
|
2998 | { |
|
|
2999 | int active = ev_active (w); |
|
|
3000 | |
|
|
3001 | forks [active - 1] = forks [--forkcnt]; |
|
|
3002 | ev_active (forks [active - 1]) = active; |
|
|
3003 | } |
|
|
3004 | |
1003 | ev_stop ((W)w); |
3005 | ev_stop (EV_A_ (W)w); |
|
|
3006 | |
|
|
3007 | EV_FREQUENT_CHECK; |
1004 | } |
3008 | } |
|
|
3009 | #endif |
|
|
3010 | |
|
|
3011 | #if EV_ASYNC_ENABLE |
|
|
3012 | void |
|
|
3013 | ev_async_start (EV_P_ ev_async *w) |
|
|
3014 | { |
|
|
3015 | if (expect_false (ev_is_active (w))) |
|
|
3016 | return; |
|
|
3017 | |
|
|
3018 | evpipe_init (EV_A); |
|
|
3019 | |
|
|
3020 | EV_FREQUENT_CHECK; |
|
|
3021 | |
|
|
3022 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
3023 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
3024 | asyncs [asynccnt - 1] = w; |
|
|
3025 | |
|
|
3026 | EV_FREQUENT_CHECK; |
|
|
3027 | } |
|
|
3028 | |
|
|
3029 | void |
|
|
3030 | ev_async_stop (EV_P_ ev_async *w) |
|
|
3031 | { |
|
|
3032 | clear_pending (EV_A_ (W)w); |
|
|
3033 | if (expect_false (!ev_is_active (w))) |
|
|
3034 | return; |
|
|
3035 | |
|
|
3036 | EV_FREQUENT_CHECK; |
|
|
3037 | |
|
|
3038 | { |
|
|
3039 | int active = ev_active (w); |
|
|
3040 | |
|
|
3041 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
3042 | ev_active (asyncs [active - 1]) = active; |
|
|
3043 | } |
|
|
3044 | |
|
|
3045 | ev_stop (EV_A_ (W)w); |
|
|
3046 | |
|
|
3047 | EV_FREQUENT_CHECK; |
|
|
3048 | } |
|
|
3049 | |
|
|
3050 | void |
|
|
3051 | ev_async_send (EV_P_ ev_async *w) |
|
|
3052 | { |
|
|
3053 | w->sent = 1; |
|
|
3054 | evpipe_write (EV_A_ &gotasync); |
|
|
3055 | } |
|
|
3056 | #endif |
1005 | |
3057 | |
1006 | /*****************************************************************************/ |
3058 | /*****************************************************************************/ |
1007 | |
3059 | |
1008 | struct ev_once |
3060 | struct ev_once |
1009 | { |
3061 | { |
1010 | struct ev_io io; |
3062 | ev_io io; |
1011 | struct ev_timer to; |
3063 | ev_timer to; |
1012 | void (*cb)(int revents, void *arg); |
3064 | void (*cb)(int revents, void *arg); |
1013 | void *arg; |
3065 | void *arg; |
1014 | }; |
3066 | }; |
1015 | |
3067 | |
1016 | static void |
3068 | static void |
1017 | once_cb (struct ev_once *once, int revents) |
3069 | once_cb (EV_P_ struct ev_once *once, int revents) |
1018 | { |
3070 | { |
1019 | void (*cb)(int revents, void *arg) = once->cb; |
3071 | void (*cb)(int revents, void *arg) = once->cb; |
1020 | void *arg = once->arg; |
3072 | void *arg = once->arg; |
1021 | |
3073 | |
1022 | ev_io_stop (&once->io); |
3074 | ev_io_stop (EV_A_ &once->io); |
1023 | ev_timer_stop (&once->to); |
3075 | ev_timer_stop (EV_A_ &once->to); |
1024 | free (once); |
3076 | ev_free (once); |
1025 | |
3077 | |
1026 | cb (revents, arg); |
3078 | cb (revents, arg); |
1027 | } |
3079 | } |
1028 | |
3080 | |
1029 | static void |
3081 | static void |
1030 | once_cb_io (struct ev_io *w, int revents) |
3082 | once_cb_io (EV_P_ ev_io *w, int revents) |
1031 | { |
3083 | { |
1032 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3084 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3085 | |
|
|
3086 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
1033 | } |
3087 | } |
1034 | |
3088 | |
1035 | static void |
3089 | static void |
1036 | once_cb_to (struct ev_timer *w, int revents) |
3090 | once_cb_to (EV_P_ ev_timer *w, int revents) |
1037 | { |
3091 | { |
1038 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3092 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
1039 | } |
|
|
1040 | |
3093 | |
|
|
3094 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
|
|
3095 | } |
|
|
3096 | |
1041 | void |
3097 | void |
1042 | ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3098 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1043 | { |
3099 | { |
1044 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
3100 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1045 | |
3101 | |
1046 | if (!once) |
3102 | if (expect_false (!once)) |
|
|
3103 | { |
1047 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
3104 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1048 | else |
3105 | return; |
1049 | { |
3106 | } |
|
|
3107 | |
1050 | once->cb = cb; |
3108 | once->cb = cb; |
1051 | once->arg = arg; |
3109 | once->arg = arg; |
1052 | |
3110 | |
1053 | ev_watcher_init (&once->io, once_cb_io); |
3111 | ev_init (&once->io, once_cb_io); |
1054 | if (fd >= 0) |
3112 | if (fd >= 0) |
1055 | { |
3113 | { |
1056 | ev_io_set (&once->io, fd, events); |
3114 | ev_io_set (&once->io, fd, events); |
1057 | ev_io_start (&once->io); |
3115 | ev_io_start (EV_A_ &once->io); |
1058 | } |
3116 | } |
1059 | |
3117 | |
1060 | ev_watcher_init (&once->to, once_cb_to); |
3118 | ev_init (&once->to, once_cb_to); |
1061 | if (timeout >= 0.) |
3119 | if (timeout >= 0.) |
1062 | { |
3120 | { |
1063 | ev_timer_set (&once->to, timeout, 0.); |
3121 | ev_timer_set (&once->to, timeout, 0.); |
1064 | ev_timer_start (&once->to); |
3122 | ev_timer_start (EV_A_ &once->to); |
1065 | } |
|
|
1066 | } |
|
|
1067 | } |
|
|
1068 | |
|
|
1069 | /*****************************************************************************/ |
|
|
1070 | |
|
|
1071 | #if 0 |
|
|
1072 | |
|
|
1073 | struct ev_io wio; |
|
|
1074 | |
|
|
1075 | static void |
|
|
1076 | sin_cb (struct ev_io *w, int revents) |
|
|
1077 | { |
|
|
1078 | fprintf (stderr, "sin %d, revents %d\n", w->fd, revents); |
|
|
1079 | } |
|
|
1080 | |
|
|
1081 | static void |
|
|
1082 | ocb (struct ev_timer *w, int revents) |
|
|
1083 | { |
|
|
1084 | //fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data); |
|
|
1085 | ev_timer_stop (w); |
|
|
1086 | ev_timer_start (w); |
|
|
1087 | } |
|
|
1088 | |
|
|
1089 | static void |
|
|
1090 | scb (struct ev_signal *w, int revents) |
|
|
1091 | { |
|
|
1092 | fprintf (stderr, "signal %x,%d\n", revents, w->signum); |
|
|
1093 | ev_io_stop (&wio); |
|
|
1094 | ev_io_start (&wio); |
|
|
1095 | } |
|
|
1096 | |
|
|
1097 | static void |
|
|
1098 | gcb (struct ev_signal *w, int revents) |
|
|
1099 | { |
|
|
1100 | fprintf (stderr, "generic %x\n", revents); |
|
|
1101 | |
|
|
1102 | } |
|
|
1103 | |
|
|
1104 | int main (void) |
|
|
1105 | { |
|
|
1106 | ev_init (0); |
|
|
1107 | |
|
|
1108 | ev_io_init (&wio, sin_cb, 0, EV_READ); |
|
|
1109 | ev_io_start (&wio); |
|
|
1110 | |
|
|
1111 | struct ev_timer t[10000]; |
|
|
1112 | |
|
|
1113 | #if 0 |
|
|
1114 | int i; |
|
|
1115 | for (i = 0; i < 10000; ++i) |
|
|
1116 | { |
3123 | } |
1117 | struct ev_timer *w = t + i; |
|
|
1118 | ev_watcher_init (w, ocb, i); |
|
|
1119 | ev_timer_init_abs (w, ocb, drand48 (), 0.99775533); |
|
|
1120 | ev_timer_start (w); |
|
|
1121 | if (drand48 () < 0.5) |
|
|
1122 | ev_timer_stop (w); |
|
|
1123 | } |
|
|
1124 | #endif |
|
|
1125 | |
|
|
1126 | struct ev_timer t1; |
|
|
1127 | ev_timer_init (&t1, ocb, 5, 10); |
|
|
1128 | ev_timer_start (&t1); |
|
|
1129 | |
|
|
1130 | struct ev_signal sig; |
|
|
1131 | ev_signal_init (&sig, scb, SIGQUIT); |
|
|
1132 | ev_signal_start (&sig); |
|
|
1133 | |
|
|
1134 | struct ev_check cw; |
|
|
1135 | ev_check_init (&cw, gcb); |
|
|
1136 | ev_check_start (&cw); |
|
|
1137 | |
|
|
1138 | struct ev_idle iw; |
|
|
1139 | ev_idle_init (&iw, gcb); |
|
|
1140 | ev_idle_start (&iw); |
|
|
1141 | |
|
|
1142 | ev_loop (0); |
|
|
1143 | |
|
|
1144 | return 0; |
|
|
1145 | } |
3124 | } |
1146 | |
3125 | |
|
|
3126 | #if EV_MULTIPLICITY |
|
|
3127 | #include "ev_wrap.h" |
1147 | #endif |
3128 | #endif |
1148 | |
3129 | |
|
|
3130 | #ifdef __cplusplus |
|
|
3131 | } |
|
|
3132 | #endif |
1149 | |
3133 | |
1150 | |
|
|
1151 | |
|
|