1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * modification, are permitted provided that the following conditions are |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * met: |
9 | * |
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10 | * 1. Redistributions of source code must retain the above copyright notice, |
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11 | * this list of conditions and the following disclaimer. |
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12 | * |
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13 | * 2. Redistributions in binary form must reproduce the above copyright |
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14 | * notice, this list of conditions and the following disclaimer in the |
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15 | * documentation and/or other materials provided with the distribution. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
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18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
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19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
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20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
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21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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22 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
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23 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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24 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
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25 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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26 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
10 | * |
27 | * |
11 | * * Redistributions of source code must retain the above copyright |
28 | * Alternatively, the contents of this file may be used under the terms of |
12 | * notice, this list of conditions and the following disclaimer. |
29 | * the GNU General Public License ("GPL") version 2 or any later version, |
13 | * |
30 | * in which case the provisions of the GPL are applicable instead of |
14 | * * Redistributions in binary form must reproduce the above |
31 | * the above. If you wish to allow the use of your version of this file |
15 | * copyright notice, this list of conditions and the following |
32 | * only under the terms of the GPL and not to allow others to use your |
16 | * disclaimer in the documentation and/or other materials provided |
33 | * version of this file under the BSD license, indicate your decision |
17 | * with the distribution. |
34 | * by deleting the provisions above and replace them with the notice |
18 | * |
35 | * and other provisions required by the GPL. If you do not delete the |
19 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
36 | * provisions above, a recipient may use your version of this file under |
20 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
37 | * either the BSD or the GPL. |
21 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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22 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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23 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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24 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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25 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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30 | */ |
38 | */ |
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39 | |
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40 | #ifdef __cplusplus |
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41 | extern "C" { |
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42 | #endif |
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43 | |
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44 | /* this big block deduces configuration from config.h */ |
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45 | #ifndef EV_STANDALONE |
31 | #if EV_USE_CONFIG_H |
46 | # ifdef EV_CONFIG_H |
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47 | # include EV_CONFIG_H |
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48 | # else |
32 | # include "config.h" |
49 | # include "config.h" |
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50 | # endif |
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51 | |
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52 | # if HAVE_CLOCK_GETTIME |
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53 | # ifndef EV_USE_MONOTONIC |
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54 | # define EV_USE_MONOTONIC 1 |
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55 | # endif |
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56 | # ifndef EV_USE_REALTIME |
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57 | # define EV_USE_REALTIME 1 |
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58 | # endif |
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59 | # else |
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60 | # ifndef EV_USE_MONOTONIC |
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61 | # define EV_USE_MONOTONIC 0 |
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62 | # endif |
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63 | # ifndef EV_USE_REALTIME |
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64 | # define EV_USE_REALTIME 0 |
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65 | # endif |
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66 | # endif |
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67 | |
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68 | # ifndef EV_USE_NANOSLEEP |
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69 | # if HAVE_NANOSLEEP |
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70 | # define EV_USE_NANOSLEEP 1 |
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71 | # else |
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72 | # define EV_USE_NANOSLEEP 0 |
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73 | # endif |
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74 | # endif |
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75 | |
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76 | # ifndef EV_USE_SELECT |
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77 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
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78 | # define EV_USE_SELECT 1 |
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79 | # else |
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80 | # define EV_USE_SELECT 0 |
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81 | # endif |
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82 | # endif |
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83 | |
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84 | # ifndef EV_USE_POLL |
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85 | # if HAVE_POLL && HAVE_POLL_H |
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86 | # define EV_USE_POLL 1 |
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87 | # else |
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88 | # define EV_USE_POLL 0 |
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89 | # endif |
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90 | # endif |
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91 | |
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92 | # ifndef EV_USE_EPOLL |
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93 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
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94 | # define EV_USE_EPOLL 1 |
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95 | # else |
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96 | # define EV_USE_EPOLL 0 |
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97 | # endif |
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98 | # endif |
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99 | |
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100 | # ifndef EV_USE_KQUEUE |
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101 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
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102 | # define EV_USE_KQUEUE 1 |
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103 | # else |
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104 | # define EV_USE_KQUEUE 0 |
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105 | # endif |
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106 | # endif |
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107 | |
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108 | # ifndef EV_USE_PORT |
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109 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
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110 | # define EV_USE_PORT 1 |
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111 | # else |
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112 | # define EV_USE_PORT 0 |
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113 | # endif |
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114 | # endif |
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115 | |
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116 | # ifndef EV_USE_INOTIFY |
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117 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
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118 | # define EV_USE_INOTIFY 1 |
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119 | # else |
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120 | # define EV_USE_INOTIFY 0 |
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121 | # endif |
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122 | # endif |
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123 | |
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124 | # ifndef EV_USE_EVENTFD |
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125 | # if HAVE_EVENTFD |
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126 | # define EV_USE_EVENTFD 1 |
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127 | # else |
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128 | # define EV_USE_EVENTFD 0 |
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129 | # endif |
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130 | # endif |
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131 | |
33 | #endif |
132 | #endif |
34 | |
133 | |
35 | #include <math.h> |
134 | #include <math.h> |
36 | #include <stdlib.h> |
135 | #include <stdlib.h> |
37 | #include <unistd.h> |
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38 | #include <fcntl.h> |
136 | #include <fcntl.h> |
39 | #include <signal.h> |
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40 | #include <stddef.h> |
137 | #include <stddef.h> |
41 | |
138 | |
42 | #include <stdio.h> |
139 | #include <stdio.h> |
43 | |
140 | |
44 | #include <assert.h> |
141 | #include <assert.h> |
45 | #include <errno.h> |
142 | #include <errno.h> |
46 | #include <sys/types.h> |
143 | #include <sys/types.h> |
47 | #include <sys/wait.h> |
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48 | #include <sys/time.h> |
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49 | #include <time.h> |
144 | #include <time.h> |
50 | |
145 | |
51 | /**/ |
146 | #include <signal.h> |
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147 | |
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148 | #ifdef EV_H |
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149 | # include EV_H |
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150 | #else |
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151 | # include "ev.h" |
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152 | #endif |
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153 | |
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154 | #ifndef _WIN32 |
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155 | # include <sys/time.h> |
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156 | # include <sys/wait.h> |
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157 | # include <unistd.h> |
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158 | #else |
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159 | # include <io.h> |
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160 | # define WIN32_LEAN_AND_MEAN |
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161 | # include <windows.h> |
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162 | # ifndef EV_SELECT_IS_WINSOCKET |
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163 | # define EV_SELECT_IS_WINSOCKET 1 |
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164 | # endif |
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165 | #endif |
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166 | |
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167 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
52 | |
168 | |
53 | #ifndef EV_USE_MONOTONIC |
169 | #ifndef EV_USE_MONOTONIC |
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170 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
54 | # define EV_USE_MONOTONIC 1 |
171 | # define EV_USE_MONOTONIC 1 |
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172 | # else |
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173 | # define EV_USE_MONOTONIC 0 |
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174 | # endif |
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175 | #endif |
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176 | |
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177 | #ifndef EV_USE_REALTIME |
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178 | # define EV_USE_REALTIME 0 |
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179 | #endif |
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180 | |
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181 | #ifndef EV_USE_NANOSLEEP |
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182 | # if _POSIX_C_SOURCE >= 199309L |
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183 | # define EV_USE_NANOSLEEP 1 |
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184 | # else |
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185 | # define EV_USE_NANOSLEEP 0 |
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186 | # endif |
55 | #endif |
187 | #endif |
56 | |
188 | |
57 | #ifndef EV_USE_SELECT |
189 | #ifndef EV_USE_SELECT |
58 | # define EV_USE_SELECT 1 |
190 | # define EV_USE_SELECT 1 |
59 | #endif |
191 | #endif |
60 | |
192 | |
61 | #ifndef EV_USE_POLL |
193 | #ifndef EV_USE_POLL |
62 | # define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */ |
194 | # ifdef _WIN32 |
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195 | # define EV_USE_POLL 0 |
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196 | # else |
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197 | # define EV_USE_POLL 1 |
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198 | # endif |
63 | #endif |
199 | #endif |
64 | |
200 | |
65 | #ifndef EV_USE_EPOLL |
201 | #ifndef EV_USE_EPOLL |
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202 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
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203 | # define EV_USE_EPOLL 1 |
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204 | # else |
66 | # define EV_USE_EPOLL 0 |
205 | # define EV_USE_EPOLL 0 |
67 | #endif |
206 | # endif |
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207 | #endif |
68 | |
208 | |
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209 | #ifndef EV_USE_KQUEUE |
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210 | # define EV_USE_KQUEUE 0 |
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211 | #endif |
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212 | |
69 | #ifndef EV_USE_REALTIME |
213 | #ifndef EV_USE_PORT |
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214 | # define EV_USE_PORT 0 |
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215 | #endif |
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216 | |
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217 | #ifndef EV_USE_INOTIFY |
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218 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
70 | # define EV_USE_REALTIME 1 |
219 | # define EV_USE_INOTIFY 1 |
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220 | # else |
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221 | # define EV_USE_INOTIFY 0 |
71 | #endif |
222 | # endif |
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223 | #endif |
72 | |
224 | |
73 | /**/ |
225 | #ifndef EV_PID_HASHSIZE |
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226 | # if EV_MINIMAL |
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227 | # define EV_PID_HASHSIZE 1 |
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228 | # else |
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229 | # define EV_PID_HASHSIZE 16 |
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230 | # endif |
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231 | #endif |
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232 | |
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233 | #ifndef EV_INOTIFY_HASHSIZE |
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234 | # if EV_MINIMAL |
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235 | # define EV_INOTIFY_HASHSIZE 1 |
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236 | # else |
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237 | # define EV_INOTIFY_HASHSIZE 16 |
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238 | # endif |
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239 | #endif |
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240 | |
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241 | #ifndef EV_USE_EVENTFD |
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242 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
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243 | # define EV_USE_EVENTFD 1 |
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244 | # else |
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245 | # define EV_USE_EVENTFD 0 |
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246 | # endif |
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247 | #endif |
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248 | |
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249 | #if 0 /* debugging */ |
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250 | # define EV_VERIFY 3 |
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251 | # define EV_USE_4HEAP 1 |
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252 | # define EV_HEAP_CACHE_AT 1 |
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253 | #endif |
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254 | |
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255 | #ifndef EV_VERIFY |
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256 | # define EV_VERIFY !EV_MINIMAL |
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257 | #endif |
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258 | |
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259 | #ifndef EV_USE_4HEAP |
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260 | # define EV_USE_4HEAP !EV_MINIMAL |
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261 | #endif |
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262 | |
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263 | #ifndef EV_HEAP_CACHE_AT |
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264 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
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265 | #endif |
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266 | |
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267 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
74 | |
268 | |
75 | #ifndef CLOCK_MONOTONIC |
269 | #ifndef CLOCK_MONOTONIC |
76 | # undef EV_USE_MONOTONIC |
270 | # undef EV_USE_MONOTONIC |
77 | # define EV_USE_MONOTONIC 0 |
271 | # define EV_USE_MONOTONIC 0 |
78 | #endif |
272 | #endif |
… | |
… | |
80 | #ifndef CLOCK_REALTIME |
274 | #ifndef CLOCK_REALTIME |
81 | # undef EV_USE_REALTIME |
275 | # undef EV_USE_REALTIME |
82 | # define EV_USE_REALTIME 0 |
276 | # define EV_USE_REALTIME 0 |
83 | #endif |
277 | #endif |
84 | |
278 | |
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279 | #if !EV_STAT_ENABLE |
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280 | # undef EV_USE_INOTIFY |
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281 | # define EV_USE_INOTIFY 0 |
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282 | #endif |
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283 | |
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284 | #if !EV_USE_NANOSLEEP |
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285 | # ifndef _WIN32 |
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286 | # include <sys/select.h> |
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287 | # endif |
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288 | #endif |
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289 | |
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290 | #if EV_USE_INOTIFY |
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291 | # include <sys/utsname.h> |
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292 | # include <sys/inotify.h> |
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293 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
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294 | # ifndef IN_DONT_FOLLOW |
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295 | # undef EV_USE_INOTIFY |
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296 | # define EV_USE_INOTIFY 0 |
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297 | # endif |
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298 | #endif |
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299 | |
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300 | #if EV_SELECT_IS_WINSOCKET |
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301 | # include <winsock.h> |
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302 | #endif |
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303 | |
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304 | #if EV_USE_EVENTFD |
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305 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
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306 | # include <stdint.h> |
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307 | # ifdef __cplusplus |
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308 | extern "C" { |
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309 | # endif |
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310 | int eventfd (unsigned int initval, int flags); |
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311 | # ifdef __cplusplus |
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312 | } |
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313 | # endif |
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314 | #endif |
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315 | |
85 | /**/ |
316 | /**/ |
86 | |
317 | |
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318 | #if EV_VERIFY >= 3 |
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319 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
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320 | #else |
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321 | # define EV_FREQUENT_CHECK do { } while (0) |
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322 | #endif |
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323 | |
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324 | /* |
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325 | * This is used to avoid floating point rounding problems. |
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326 | * It is added to ev_rt_now when scheduling periodics |
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327 | * to ensure progress, time-wise, even when rounding |
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328 | * errors are against us. |
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329 | * This value is good at least till the year 4000. |
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330 | * Better solutions welcome. |
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331 | */ |
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332 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
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333 | |
87 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
334 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
88 | #define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */ |
335 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
89 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
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90 | /*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ |
336 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
91 | |
337 | |
92 | #include "ev.h" |
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93 | |
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94 | #if __GNUC__ >= 3 |
338 | #if __GNUC__ >= 4 |
95 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
339 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
96 | # define inline inline |
340 | # define noinline __attribute__ ((noinline)) |
97 | #else |
341 | #else |
98 | # define expect(expr,value) (expr) |
342 | # define expect(expr,value) (expr) |
99 | # define inline static |
343 | # define noinline |
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344 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
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345 | # define inline |
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346 | # endif |
100 | #endif |
347 | #endif |
101 | |
348 | |
102 | #define expect_false(expr) expect ((expr) != 0, 0) |
349 | #define expect_false(expr) expect ((expr) != 0, 0) |
103 | #define expect_true(expr) expect ((expr) != 0, 1) |
350 | #define expect_true(expr) expect ((expr) != 0, 1) |
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351 | #define inline_size static inline |
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352 | |
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353 | #if EV_MINIMAL |
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354 | # define inline_speed static noinline |
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355 | #else |
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356 | # define inline_speed static inline |
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357 | #endif |
104 | |
358 | |
105 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
359 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
106 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
360 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
107 | |
361 | |
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362 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
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363 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
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364 | |
108 | typedef struct ev_watcher *W; |
365 | typedef ev_watcher *W; |
109 | typedef struct ev_watcher_list *WL; |
366 | typedef ev_watcher_list *WL; |
110 | typedef struct ev_watcher_time *WT; |
367 | typedef ev_watcher_time *WT; |
111 | |
368 | |
112 | static ev_tstamp now_floor, now, diff; /* monotonic clock */ |
369 | #define ev_active(w) ((W)(w))->active |
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370 | #define ev_at(w) ((WT)(w))->at |
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371 | |
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372 | #if EV_USE_MONOTONIC |
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373 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
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374 | /* giving it a reasonably high chance of working on typical architetcures */ |
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375 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
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376 | #endif |
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377 | |
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378 | #ifdef _WIN32 |
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379 | # include "ev_win32.c" |
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380 | #endif |
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381 | |
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382 | /*****************************************************************************/ |
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383 | |
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384 | static void (*syserr_cb)(const char *msg); |
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385 | |
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386 | void |
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387 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
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388 | { |
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389 | syserr_cb = cb; |
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390 | } |
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391 | |
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392 | static void noinline |
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393 | syserr (const char *msg) |
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394 | { |
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395 | if (!msg) |
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396 | msg = "(libev) system error"; |
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397 | |
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398 | if (syserr_cb) |
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399 | syserr_cb (msg); |
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400 | else |
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401 | { |
|
|
402 | perror (msg); |
|
|
403 | abort (); |
|
|
404 | } |
|
|
405 | } |
|
|
406 | |
|
|
407 | static void * |
|
|
408 | ev_realloc_emul (void *ptr, long size) |
|
|
409 | { |
|
|
410 | /* some systems, notably openbsd and darwin, fail to properly |
|
|
411 | * implement realloc (x, 0) (as required by both ansi c-98 and |
|
|
412 | * the single unix specification, so work around them here. |
|
|
413 | */ |
|
|
414 | |
|
|
415 | if (size) |
|
|
416 | return realloc (ptr, size); |
|
|
417 | |
|
|
418 | free (ptr); |
|
|
419 | return 0; |
|
|
420 | } |
|
|
421 | |
|
|
422 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
|
|
423 | |
|
|
424 | void |
|
|
425 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
|
|
426 | { |
|
|
427 | alloc = cb; |
|
|
428 | } |
|
|
429 | |
|
|
430 | inline_speed void * |
|
|
431 | ev_realloc (void *ptr, long size) |
|
|
432 | { |
|
|
433 | ptr = alloc (ptr, size); |
|
|
434 | |
|
|
435 | if (!ptr && size) |
|
|
436 | { |
|
|
437 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
438 | abort (); |
|
|
439 | } |
|
|
440 | |
|
|
441 | return ptr; |
|
|
442 | } |
|
|
443 | |
|
|
444 | #define ev_malloc(size) ev_realloc (0, (size)) |
|
|
445 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
|
|
446 | |
|
|
447 | /*****************************************************************************/ |
|
|
448 | |
|
|
449 | typedef struct |
|
|
450 | { |
|
|
451 | WL head; |
|
|
452 | unsigned char events; |
|
|
453 | unsigned char reify; |
|
|
454 | #if EV_SELECT_IS_WINSOCKET |
|
|
455 | SOCKET handle; |
|
|
456 | #endif |
|
|
457 | } ANFD; |
|
|
458 | |
|
|
459 | typedef struct |
|
|
460 | { |
|
|
461 | W w; |
|
|
462 | int events; |
|
|
463 | } ANPENDING; |
|
|
464 | |
|
|
465 | #if EV_USE_INOTIFY |
|
|
466 | /* hash table entry per inotify-id */ |
|
|
467 | typedef struct |
|
|
468 | { |
|
|
469 | WL head; |
|
|
470 | } ANFS; |
|
|
471 | #endif |
|
|
472 | |
|
|
473 | /* Heap Entry */ |
|
|
474 | #if EV_HEAP_CACHE_AT |
|
|
475 | typedef struct { |
|
|
476 | ev_tstamp at; |
|
|
477 | WT w; |
|
|
478 | } ANHE; |
|
|
479 | |
|
|
480 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
|
|
481 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
|
482 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
483 | #else |
|
|
484 | typedef WT ANHE; |
|
|
485 | |
|
|
486 | #define ANHE_w(he) (he) |
|
|
487 | #define ANHE_at(he) (he)->at |
|
|
488 | #define ANHE_at_cache(he) |
|
|
489 | #endif |
|
|
490 | |
|
|
491 | #if EV_MULTIPLICITY |
|
|
492 | |
|
|
493 | struct ev_loop |
|
|
494 | { |
|
|
495 | ev_tstamp ev_rt_now; |
|
|
496 | #define ev_rt_now ((loop)->ev_rt_now) |
|
|
497 | #define VAR(name,decl) decl; |
|
|
498 | #include "ev_vars.h" |
|
|
499 | #undef VAR |
|
|
500 | }; |
|
|
501 | #include "ev_wrap.h" |
|
|
502 | |
|
|
503 | static struct ev_loop default_loop_struct; |
|
|
504 | struct ev_loop *ev_default_loop_ptr; |
|
|
505 | |
|
|
506 | #else |
|
|
507 | |
113 | ev_tstamp ev_now; |
508 | ev_tstamp ev_rt_now; |
114 | int ev_method; |
509 | #define VAR(name,decl) static decl; |
|
|
510 | #include "ev_vars.h" |
|
|
511 | #undef VAR |
115 | |
512 | |
116 | static int have_monotonic; /* runtime */ |
513 | static int ev_default_loop_ptr; |
117 | |
514 | |
118 | static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */ |
515 | #endif |
119 | static void (*method_modify)(int fd, int oev, int nev); |
|
|
120 | static void (*method_poll)(ev_tstamp timeout); |
|
|
121 | |
516 | |
122 | /*****************************************************************************/ |
517 | /*****************************************************************************/ |
123 | |
518 | |
124 | ev_tstamp |
519 | ev_tstamp |
125 | ev_time (void) |
520 | ev_time (void) |
… | |
… | |
133 | gettimeofday (&tv, 0); |
528 | gettimeofday (&tv, 0); |
134 | return tv.tv_sec + tv.tv_usec * 1e-6; |
529 | return tv.tv_sec + tv.tv_usec * 1e-6; |
135 | #endif |
530 | #endif |
136 | } |
531 | } |
137 | |
532 | |
138 | static ev_tstamp |
533 | ev_tstamp inline_size |
139 | get_clock (void) |
534 | get_clock (void) |
140 | { |
535 | { |
141 | #if EV_USE_MONOTONIC |
536 | #if EV_USE_MONOTONIC |
142 | if (expect_true (have_monotonic)) |
537 | if (expect_true (have_monotonic)) |
143 | { |
538 | { |
… | |
… | |
148 | #endif |
543 | #endif |
149 | |
544 | |
150 | return ev_time (); |
545 | return ev_time (); |
151 | } |
546 | } |
152 | |
547 | |
153 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
548 | #if EV_MULTIPLICITY |
|
|
549 | ev_tstamp |
|
|
550 | ev_now (EV_P) |
|
|
551 | { |
|
|
552 | return ev_rt_now; |
|
|
553 | } |
|
|
554 | #endif |
154 | |
555 | |
155 | #define array_needsize(base,cur,cnt,init) \ |
556 | void |
156 | if (expect_false ((cnt) > cur)) \ |
557 | ev_sleep (ev_tstamp delay) |
157 | { \ |
558 | { |
158 | int newcnt = cur; \ |
559 | if (delay > 0.) |
159 | do \ |
|
|
160 | { \ |
|
|
161 | newcnt = array_roundsize (base, newcnt << 1); \ |
|
|
162 | } \ |
|
|
163 | while ((cnt) > newcnt); \ |
|
|
164 | \ |
|
|
165 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
|
|
166 | init (base + cur, newcnt - cur); \ |
|
|
167 | cur = newcnt; \ |
|
|
168 | } |
560 | { |
|
|
561 | #if EV_USE_NANOSLEEP |
|
|
562 | struct timespec ts; |
|
|
563 | |
|
|
564 | ts.tv_sec = (time_t)delay; |
|
|
565 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
566 | |
|
|
567 | nanosleep (&ts, 0); |
|
|
568 | #elif defined(_WIN32) |
|
|
569 | Sleep ((unsigned long)(delay * 1e3)); |
|
|
570 | #else |
|
|
571 | struct timeval tv; |
|
|
572 | |
|
|
573 | tv.tv_sec = (time_t)delay; |
|
|
574 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
575 | |
|
|
576 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
|
|
577 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
|
|
578 | /* by older ones */ |
|
|
579 | select (0, 0, 0, 0, &tv); |
|
|
580 | #endif |
|
|
581 | } |
|
|
582 | } |
169 | |
583 | |
170 | /*****************************************************************************/ |
584 | /*****************************************************************************/ |
171 | |
585 | |
172 | typedef struct |
586 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
173 | { |
|
|
174 | struct ev_io *head; |
|
|
175 | unsigned char events; |
|
|
176 | unsigned char reify; |
|
|
177 | } ANFD; |
|
|
178 | |
587 | |
179 | static ANFD *anfds; |
588 | int inline_size |
180 | static int anfdmax; |
589 | array_nextsize (int elem, int cur, int cnt) |
|
|
590 | { |
|
|
591 | int ncur = cur + 1; |
181 | |
592 | |
182 | static void |
593 | do |
|
|
594 | ncur <<= 1; |
|
|
595 | while (cnt > ncur); |
|
|
596 | |
|
|
597 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
|
|
598 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
|
|
599 | { |
|
|
600 | ncur *= elem; |
|
|
601 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
|
|
602 | ncur = ncur - sizeof (void *) * 4; |
|
|
603 | ncur /= elem; |
|
|
604 | } |
|
|
605 | |
|
|
606 | return ncur; |
|
|
607 | } |
|
|
608 | |
|
|
609 | static noinline void * |
|
|
610 | array_realloc (int elem, void *base, int *cur, int cnt) |
|
|
611 | { |
|
|
612 | *cur = array_nextsize (elem, *cur, cnt); |
|
|
613 | return ev_realloc (base, elem * *cur); |
|
|
614 | } |
|
|
615 | |
|
|
616 | #define array_needsize(type,base,cur,cnt,init) \ |
|
|
617 | if (expect_false ((cnt) > (cur))) \ |
|
|
618 | { \ |
|
|
619 | int ocur_ = (cur); \ |
|
|
620 | (base) = (type *)array_realloc \ |
|
|
621 | (sizeof (type), (base), &(cur), (cnt)); \ |
|
|
622 | init ((base) + (ocur_), (cur) - ocur_); \ |
|
|
623 | } |
|
|
624 | |
|
|
625 | #if 0 |
|
|
626 | #define array_slim(type,stem) \ |
|
|
627 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
|
|
628 | { \ |
|
|
629 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
|
|
630 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
|
|
631 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
|
|
632 | } |
|
|
633 | #endif |
|
|
634 | |
|
|
635 | #define array_free(stem, idx) \ |
|
|
636 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
|
|
637 | |
|
|
638 | /*****************************************************************************/ |
|
|
639 | |
|
|
640 | void noinline |
|
|
641 | ev_feed_event (EV_P_ void *w, int revents) |
|
|
642 | { |
|
|
643 | W w_ = (W)w; |
|
|
644 | int pri = ABSPRI (w_); |
|
|
645 | |
|
|
646 | if (expect_false (w_->pending)) |
|
|
647 | pendings [pri][w_->pending - 1].events |= revents; |
|
|
648 | else |
|
|
649 | { |
|
|
650 | w_->pending = ++pendingcnt [pri]; |
|
|
651 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
|
|
652 | pendings [pri][w_->pending - 1].w = w_; |
|
|
653 | pendings [pri][w_->pending - 1].events = revents; |
|
|
654 | } |
|
|
655 | } |
|
|
656 | |
|
|
657 | void inline_speed |
|
|
658 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
659 | { |
|
|
660 | int i; |
|
|
661 | |
|
|
662 | for (i = 0; i < eventcnt; ++i) |
|
|
663 | ev_feed_event (EV_A_ events [i], type); |
|
|
664 | } |
|
|
665 | |
|
|
666 | /*****************************************************************************/ |
|
|
667 | |
|
|
668 | void inline_size |
183 | anfds_init (ANFD *base, int count) |
669 | anfds_init (ANFD *base, int count) |
184 | { |
670 | { |
185 | while (count--) |
671 | while (count--) |
186 | { |
672 | { |
187 | base->head = 0; |
673 | base->head = 0; |
… | |
… | |
190 | |
676 | |
191 | ++base; |
677 | ++base; |
192 | } |
678 | } |
193 | } |
679 | } |
194 | |
680 | |
195 | typedef struct |
681 | void inline_speed |
196 | { |
|
|
197 | W w; |
|
|
198 | int events; |
|
|
199 | } ANPENDING; |
|
|
200 | |
|
|
201 | static ANPENDING *pendings [NUMPRI]; |
|
|
202 | static int pendingmax [NUMPRI], pendingcnt [NUMPRI]; |
|
|
203 | |
|
|
204 | static void |
|
|
205 | event (W w, int events) |
|
|
206 | { |
|
|
207 | if (w->pending) |
|
|
208 | { |
|
|
209 | pendings [ABSPRI (w)][w->pending - 1].events |= events; |
|
|
210 | return; |
|
|
211 | } |
|
|
212 | |
|
|
213 | w->pending = ++pendingcnt [ABSPRI (w)]; |
|
|
214 | array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], ); |
|
|
215 | pendings [ABSPRI (w)][w->pending - 1].w = w; |
|
|
216 | pendings [ABSPRI (w)][w->pending - 1].events = events; |
|
|
217 | } |
|
|
218 | |
|
|
219 | static void |
|
|
220 | queue_events (W *events, int eventcnt, int type) |
|
|
221 | { |
|
|
222 | int i; |
|
|
223 | |
|
|
224 | for (i = 0; i < eventcnt; ++i) |
|
|
225 | event (events [i], type); |
|
|
226 | } |
|
|
227 | |
|
|
228 | static void |
|
|
229 | fd_event (int fd, int events) |
682 | fd_event (EV_P_ int fd, int revents) |
230 | { |
683 | { |
231 | ANFD *anfd = anfds + fd; |
684 | ANFD *anfd = anfds + fd; |
232 | struct ev_io *w; |
685 | ev_io *w; |
233 | |
686 | |
234 | for (w = anfd->head; w; w = w->next) |
687 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
235 | { |
688 | { |
236 | int ev = w->events & events; |
689 | int ev = w->events & revents; |
237 | |
690 | |
238 | if (ev) |
691 | if (ev) |
239 | event ((W)w, ev); |
692 | ev_feed_event (EV_A_ (W)w, ev); |
240 | } |
693 | } |
241 | } |
694 | } |
242 | |
695 | |
243 | /*****************************************************************************/ |
696 | void |
|
|
697 | ev_feed_fd_event (EV_P_ int fd, int revents) |
|
|
698 | { |
|
|
699 | if (fd >= 0 && fd < anfdmax) |
|
|
700 | fd_event (EV_A_ fd, revents); |
|
|
701 | } |
244 | |
702 | |
245 | static int *fdchanges; |
703 | void inline_size |
246 | static int fdchangemax, fdchangecnt; |
704 | fd_reify (EV_P) |
247 | |
|
|
248 | static void |
|
|
249 | fd_reify (void) |
|
|
250 | { |
705 | { |
251 | int i; |
706 | int i; |
252 | |
707 | |
253 | for (i = 0; i < fdchangecnt; ++i) |
708 | for (i = 0; i < fdchangecnt; ++i) |
254 | { |
709 | { |
255 | int fd = fdchanges [i]; |
710 | int fd = fdchanges [i]; |
256 | ANFD *anfd = anfds + fd; |
711 | ANFD *anfd = anfds + fd; |
257 | struct ev_io *w; |
712 | ev_io *w; |
258 | |
713 | |
259 | int events = 0; |
714 | unsigned char events = 0; |
260 | |
715 | |
261 | for (w = anfd->head; w; w = w->next) |
716 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
262 | events |= w->events; |
717 | events |= (unsigned char)w->events; |
263 | |
718 | |
264 | anfd->reify = 0; |
719 | #if EV_SELECT_IS_WINSOCKET |
265 | |
720 | if (events) |
266 | if (anfd->events != events) |
|
|
267 | { |
721 | { |
268 | method_modify (fd, anfd->events, events); |
722 | unsigned long arg; |
269 | anfd->events = events; |
723 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
724 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
725 | #else |
|
|
726 | anfd->handle = _get_osfhandle (fd); |
|
|
727 | #endif |
|
|
728 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
270 | } |
729 | } |
|
|
730 | #endif |
|
|
731 | |
|
|
732 | { |
|
|
733 | unsigned char o_events = anfd->events; |
|
|
734 | unsigned char o_reify = anfd->reify; |
|
|
735 | |
|
|
736 | anfd->reify = 0; |
|
|
737 | anfd->events = events; |
|
|
738 | |
|
|
739 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
740 | backend_modify (EV_A_ fd, o_events, events); |
|
|
741 | } |
271 | } |
742 | } |
272 | |
743 | |
273 | fdchangecnt = 0; |
744 | fdchangecnt = 0; |
274 | } |
745 | } |
275 | |
746 | |
276 | static void |
747 | void inline_size |
277 | fd_change (int fd) |
748 | fd_change (EV_P_ int fd, int flags) |
278 | { |
749 | { |
279 | if (anfds [fd].reify || fdchangecnt < 0) |
750 | unsigned char reify = anfds [fd].reify; |
280 | return; |
|
|
281 | |
|
|
282 | anfds [fd].reify = 1; |
751 | anfds [fd].reify |= flags; |
283 | |
752 | |
|
|
753 | if (expect_true (!reify)) |
|
|
754 | { |
284 | ++fdchangecnt; |
755 | ++fdchangecnt; |
285 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
756 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
286 | fdchanges [fdchangecnt - 1] = fd; |
757 | fdchanges [fdchangecnt - 1] = fd; |
|
|
758 | } |
287 | } |
759 | } |
288 | |
760 | |
289 | static void |
761 | void inline_speed |
290 | fd_kill (int fd) |
762 | fd_kill (EV_P_ int fd) |
291 | { |
763 | { |
292 | struct ev_io *w; |
764 | ev_io *w; |
293 | |
765 | |
294 | printf ("killing fd %d\n", fd);//D |
|
|
295 | while ((w = anfds [fd].head)) |
766 | while ((w = (ev_io *)anfds [fd].head)) |
296 | { |
767 | { |
297 | ev_io_stop (w); |
768 | ev_io_stop (EV_A_ w); |
298 | event ((W)w, EV_ERROR | EV_READ | EV_WRITE); |
769 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
299 | } |
770 | } |
|
|
771 | } |
|
|
772 | |
|
|
773 | int inline_size |
|
|
774 | fd_valid (int fd) |
|
|
775 | { |
|
|
776 | #ifdef _WIN32 |
|
|
777 | return _get_osfhandle (fd) != -1; |
|
|
778 | #else |
|
|
779 | return fcntl (fd, F_GETFD) != -1; |
|
|
780 | #endif |
300 | } |
781 | } |
301 | |
782 | |
302 | /* called on EBADF to verify fds */ |
783 | /* called on EBADF to verify fds */ |
303 | static void |
784 | static void noinline |
304 | fd_ebadf (void) |
785 | fd_ebadf (EV_P) |
305 | { |
786 | { |
306 | int fd; |
787 | int fd; |
307 | |
788 | |
308 | for (fd = 0; fd < anfdmax; ++fd) |
789 | for (fd = 0; fd < anfdmax; ++fd) |
309 | if (anfds [fd].events) |
790 | if (anfds [fd].events) |
310 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
791 | if (!fd_valid (fd) && errno == EBADF) |
311 | fd_kill (fd); |
792 | fd_kill (EV_A_ fd); |
312 | } |
793 | } |
313 | |
794 | |
314 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
795 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
315 | static void |
796 | static void noinline |
316 | fd_enomem (void) |
797 | fd_enomem (EV_P) |
317 | { |
798 | { |
318 | int fd = anfdmax; |
799 | int fd; |
319 | |
800 | |
320 | while (fd--) |
801 | for (fd = anfdmax; fd--; ) |
321 | if (anfds [fd].events) |
802 | if (anfds [fd].events) |
322 | { |
803 | { |
323 | close (fd); |
|
|
324 | fd_kill (fd); |
804 | fd_kill (EV_A_ fd); |
325 | return; |
805 | return; |
326 | } |
806 | } |
327 | } |
807 | } |
328 | |
808 | |
|
|
809 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
|
|
810 | static void noinline |
|
|
811 | fd_rearm_all (EV_P) |
|
|
812 | { |
|
|
813 | int fd; |
|
|
814 | |
|
|
815 | for (fd = 0; fd < anfdmax; ++fd) |
|
|
816 | if (anfds [fd].events) |
|
|
817 | { |
|
|
818 | anfds [fd].events = 0; |
|
|
819 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
|
|
820 | } |
|
|
821 | } |
|
|
822 | |
329 | /*****************************************************************************/ |
823 | /*****************************************************************************/ |
330 | |
824 | |
331 | static struct ev_timer **timers; |
825 | /* |
332 | static int timermax, timercnt; |
826 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
|
|
827 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
|
|
828 | * the branching factor of the d-tree. |
|
|
829 | */ |
333 | |
830 | |
334 | static struct ev_periodic **periodics; |
831 | /* |
335 | static int periodicmax, periodiccnt; |
832 | * at the moment we allow libev the luxury of two heaps, |
|
|
833 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
834 | * which is more cache-efficient. |
|
|
835 | * the difference is about 5% with 50000+ watchers. |
|
|
836 | */ |
|
|
837 | #if EV_USE_4HEAP |
336 | |
838 | |
337 | static void |
839 | #define DHEAP 4 |
338 | upheap (WT *timers, int k) |
840 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
339 | { |
841 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
340 | WT w = timers [k]; |
842 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
341 | |
843 | |
342 | while (k && timers [k >> 1]->at > w->at) |
844 | /* away from the root */ |
343 | { |
845 | void inline_speed |
344 | timers [k] = timers [k >> 1]; |
|
|
345 | timers [k]->active = k + 1; |
|
|
346 | k >>= 1; |
|
|
347 | } |
|
|
348 | |
|
|
349 | timers [k] = w; |
|
|
350 | timers [k]->active = k + 1; |
|
|
351 | |
|
|
352 | } |
|
|
353 | |
|
|
354 | static void |
|
|
355 | downheap (WT *timers, int N, int k) |
846 | downheap (ANHE *heap, int N, int k) |
356 | { |
847 | { |
357 | WT w = timers [k]; |
848 | ANHE he = heap [k]; |
|
|
849 | ANHE *E = heap + N + HEAP0; |
358 | |
850 | |
359 | while (k < (N >> 1)) |
851 | for (;;) |
360 | { |
852 | { |
361 | int j = k << 1; |
853 | ev_tstamp minat; |
|
|
854 | ANHE *minpos; |
|
|
855 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
362 | |
856 | |
363 | if (j + 1 < N && timers [j]->at > timers [j + 1]->at) |
857 | /* find minimum child */ |
|
|
858 | if (expect_true (pos + DHEAP - 1 < E)) |
364 | ++j; |
859 | { |
365 | |
860 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
366 | if (w->at <= timers [j]->at) |
861 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
862 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
863 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
864 | } |
|
|
865 | else if (pos < E) |
|
|
866 | { |
|
|
867 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
868 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
869 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
870 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
871 | } |
|
|
872 | else |
367 | break; |
873 | break; |
368 | |
874 | |
369 | timers [k] = timers [j]; |
875 | if (ANHE_at (he) <= minat) |
370 | timers [k]->active = k + 1; |
876 | break; |
|
|
877 | |
|
|
878 | heap [k] = *minpos; |
|
|
879 | ev_active (ANHE_w (*minpos)) = k; |
|
|
880 | |
|
|
881 | k = minpos - heap; |
|
|
882 | } |
|
|
883 | |
|
|
884 | heap [k] = he; |
|
|
885 | ev_active (ANHE_w (he)) = k; |
|
|
886 | } |
|
|
887 | |
|
|
888 | #else /* 4HEAP */ |
|
|
889 | |
|
|
890 | #define HEAP0 1 |
|
|
891 | #define HPARENT(k) ((k) >> 1) |
|
|
892 | #define UPHEAP_DONE(p,k) (!(p)) |
|
|
893 | |
|
|
894 | /* away from the root */ |
|
|
895 | void inline_speed |
|
|
896 | downheap (ANHE *heap, int N, int k) |
|
|
897 | { |
|
|
898 | ANHE he = heap [k]; |
|
|
899 | |
|
|
900 | for (;;) |
|
|
901 | { |
|
|
902 | int c = k << 1; |
|
|
903 | |
|
|
904 | if (c > N + HEAP0 - 1) |
|
|
905 | break; |
|
|
906 | |
|
|
907 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
908 | ? 1 : 0; |
|
|
909 | |
|
|
910 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
911 | break; |
|
|
912 | |
|
|
913 | heap [k] = heap [c]; |
|
|
914 | ev_active (ANHE_w (heap [k])) = k; |
|
|
915 | |
371 | k = j; |
916 | k = c; |
|
|
917 | } |
|
|
918 | |
|
|
919 | heap [k] = he; |
|
|
920 | ev_active (ANHE_w (he)) = k; |
|
|
921 | } |
|
|
922 | #endif |
|
|
923 | |
|
|
924 | /* towards the root */ |
|
|
925 | void inline_speed |
|
|
926 | upheap (ANHE *heap, int k) |
|
|
927 | { |
|
|
928 | ANHE he = heap [k]; |
|
|
929 | |
|
|
930 | for (;;) |
372 | } |
931 | { |
|
|
932 | int p = HPARENT (k); |
373 | |
933 | |
374 | timers [k] = w; |
934 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
375 | timers [k]->active = k + 1; |
935 | break; |
|
|
936 | |
|
|
937 | heap [k] = heap [p]; |
|
|
938 | ev_active (ANHE_w (heap [k])) = k; |
|
|
939 | k = p; |
|
|
940 | } |
|
|
941 | |
|
|
942 | heap [k] = he; |
|
|
943 | ev_active (ANHE_w (he)) = k; |
|
|
944 | } |
|
|
945 | |
|
|
946 | void inline_size |
|
|
947 | adjustheap (ANHE *heap, int N, int k) |
|
|
948 | { |
|
|
949 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
|
|
950 | upheap (heap, k); |
|
|
951 | else |
|
|
952 | downheap (heap, N, k); |
|
|
953 | } |
|
|
954 | |
|
|
955 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
956 | void inline_size |
|
|
957 | reheap (ANHE *heap, int N) |
|
|
958 | { |
|
|
959 | int i; |
|
|
960 | |
|
|
961 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
962 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
963 | for (i = 0; i < N; ++i) |
|
|
964 | upheap (heap, i + HEAP0); |
376 | } |
965 | } |
377 | |
966 | |
378 | /*****************************************************************************/ |
967 | /*****************************************************************************/ |
379 | |
968 | |
380 | typedef struct |
969 | typedef struct |
381 | { |
970 | { |
382 | struct ev_signal *head; |
971 | WL head; |
383 | sig_atomic_t volatile gotsig; |
972 | EV_ATOMIC_T gotsig; |
384 | } ANSIG; |
973 | } ANSIG; |
385 | |
974 | |
386 | static ANSIG *signals; |
975 | static ANSIG *signals; |
387 | static int signalmax; |
976 | static int signalmax; |
388 | |
977 | |
389 | static int sigpipe [2]; |
978 | static EV_ATOMIC_T gotsig; |
390 | static sig_atomic_t volatile gotsig; |
|
|
391 | static struct ev_io sigev; |
|
|
392 | |
979 | |
393 | static void |
980 | void inline_size |
394 | signals_init (ANSIG *base, int count) |
981 | signals_init (ANSIG *base, int count) |
395 | { |
982 | { |
396 | while (count--) |
983 | while (count--) |
397 | { |
984 | { |
398 | base->head = 0; |
985 | base->head = 0; |
… | |
… | |
400 | |
987 | |
401 | ++base; |
988 | ++base; |
402 | } |
989 | } |
403 | } |
990 | } |
404 | |
991 | |
|
|
992 | /*****************************************************************************/ |
|
|
993 | |
|
|
994 | void inline_speed |
|
|
995 | fd_intern (int fd) |
|
|
996 | { |
|
|
997 | #ifdef _WIN32 |
|
|
998 | unsigned long arg = 1; |
|
|
999 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
1000 | #else |
|
|
1001 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1002 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1003 | #endif |
|
|
1004 | } |
|
|
1005 | |
|
|
1006 | static void noinline |
|
|
1007 | evpipe_init (EV_P) |
|
|
1008 | { |
|
|
1009 | if (!ev_is_active (&pipeev)) |
|
|
1010 | { |
|
|
1011 | #if EV_USE_EVENTFD |
|
|
1012 | if ((evfd = eventfd (0, 0)) >= 0) |
|
|
1013 | { |
|
|
1014 | evpipe [0] = -1; |
|
|
1015 | fd_intern (evfd); |
|
|
1016 | ev_io_set (&pipeev, evfd, EV_READ); |
|
|
1017 | } |
|
|
1018 | else |
|
|
1019 | #endif |
|
|
1020 | { |
|
|
1021 | while (pipe (evpipe)) |
|
|
1022 | syserr ("(libev) error creating signal/async pipe"); |
|
|
1023 | |
|
|
1024 | fd_intern (evpipe [0]); |
|
|
1025 | fd_intern (evpipe [1]); |
|
|
1026 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
|
|
1027 | } |
|
|
1028 | |
|
|
1029 | ev_io_start (EV_A_ &pipeev); |
|
|
1030 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1031 | } |
|
|
1032 | } |
|
|
1033 | |
|
|
1034 | void inline_size |
|
|
1035 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1036 | { |
|
|
1037 | if (!*flag) |
|
|
1038 | { |
|
|
1039 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1040 | |
|
|
1041 | *flag = 1; |
|
|
1042 | |
|
|
1043 | #if EV_USE_EVENTFD |
|
|
1044 | if (evfd >= 0) |
|
|
1045 | { |
|
|
1046 | uint64_t counter = 1; |
|
|
1047 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1048 | } |
|
|
1049 | else |
|
|
1050 | #endif |
|
|
1051 | write (evpipe [1], &old_errno, 1); |
|
|
1052 | |
|
|
1053 | errno = old_errno; |
|
|
1054 | } |
|
|
1055 | } |
|
|
1056 | |
405 | static void |
1057 | static void |
|
|
1058 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
1059 | { |
|
|
1060 | #if EV_USE_EVENTFD |
|
|
1061 | if (evfd >= 0) |
|
|
1062 | { |
|
|
1063 | uint64_t counter; |
|
|
1064 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1065 | } |
|
|
1066 | else |
|
|
1067 | #endif |
|
|
1068 | { |
|
|
1069 | char dummy; |
|
|
1070 | read (evpipe [0], &dummy, 1); |
|
|
1071 | } |
|
|
1072 | |
|
|
1073 | if (gotsig && ev_is_default_loop (EV_A)) |
|
|
1074 | { |
|
|
1075 | int signum; |
|
|
1076 | gotsig = 0; |
|
|
1077 | |
|
|
1078 | for (signum = signalmax; signum--; ) |
|
|
1079 | if (signals [signum].gotsig) |
|
|
1080 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
1081 | } |
|
|
1082 | |
|
|
1083 | #if EV_ASYNC_ENABLE |
|
|
1084 | if (gotasync) |
|
|
1085 | { |
|
|
1086 | int i; |
|
|
1087 | gotasync = 0; |
|
|
1088 | |
|
|
1089 | for (i = asynccnt; i--; ) |
|
|
1090 | if (asyncs [i]->sent) |
|
|
1091 | { |
|
|
1092 | asyncs [i]->sent = 0; |
|
|
1093 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
1094 | } |
|
|
1095 | } |
|
|
1096 | #endif |
|
|
1097 | } |
|
|
1098 | |
|
|
1099 | /*****************************************************************************/ |
|
|
1100 | |
|
|
1101 | static void |
406 | sighandler (int signum) |
1102 | ev_sighandler (int signum) |
407 | { |
1103 | { |
|
|
1104 | #if EV_MULTIPLICITY |
|
|
1105 | struct ev_loop *loop = &default_loop_struct; |
|
|
1106 | #endif |
|
|
1107 | |
|
|
1108 | #if _WIN32 |
|
|
1109 | signal (signum, ev_sighandler); |
|
|
1110 | #endif |
|
|
1111 | |
408 | signals [signum - 1].gotsig = 1; |
1112 | signals [signum - 1].gotsig = 1; |
409 | |
1113 | evpipe_write (EV_A_ &gotsig); |
410 | if (!gotsig) |
|
|
411 | { |
|
|
412 | gotsig = 1; |
|
|
413 | write (sigpipe [1], &signum, 1); |
|
|
414 | } |
|
|
415 | } |
1114 | } |
416 | |
1115 | |
417 | static void |
1116 | void noinline |
418 | sigcb (struct ev_io *iow, int revents) |
1117 | ev_feed_signal_event (EV_P_ int signum) |
419 | { |
1118 | { |
420 | struct ev_signal *w; |
1119 | WL w; |
|
|
1120 | |
|
|
1121 | #if EV_MULTIPLICITY |
|
|
1122 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1123 | #endif |
|
|
1124 | |
421 | int signum; |
1125 | --signum; |
422 | |
1126 | |
423 | read (sigpipe [0], &revents, 1); |
1127 | if (signum < 0 || signum >= signalmax) |
424 | gotsig = 0; |
1128 | return; |
425 | |
1129 | |
426 | for (signum = signalmax; signum--; ) |
|
|
427 | if (signals [signum].gotsig) |
|
|
428 | { |
|
|
429 | signals [signum].gotsig = 0; |
1130 | signals [signum].gotsig = 0; |
430 | |
1131 | |
431 | for (w = signals [signum].head; w; w = w->next) |
1132 | for (w = signals [signum].head; w; w = w->next) |
432 | event ((W)w, EV_SIGNAL); |
1133 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
433 | } |
|
|
434 | } |
|
|
435 | |
|
|
436 | static void |
|
|
437 | siginit (void) |
|
|
438 | { |
|
|
439 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
|
|
440 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
|
|
441 | |
|
|
442 | /* rather than sort out wether we really need nb, set it */ |
|
|
443 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
|
|
444 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
|
|
445 | |
|
|
446 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
447 | ev_io_start (&sigev); |
|
|
448 | } |
1134 | } |
449 | |
1135 | |
450 | /*****************************************************************************/ |
1136 | /*****************************************************************************/ |
451 | |
1137 | |
452 | static struct ev_idle **idles; |
1138 | static WL childs [EV_PID_HASHSIZE]; |
453 | static int idlemax, idlecnt; |
|
|
454 | |
1139 | |
455 | static struct ev_prepare **prepares; |
1140 | #ifndef _WIN32 |
456 | static int preparemax, preparecnt; |
|
|
457 | |
1141 | |
458 | static struct ev_check **checks; |
|
|
459 | static int checkmax, checkcnt; |
|
|
460 | |
|
|
461 | /*****************************************************************************/ |
|
|
462 | |
|
|
463 | static struct ev_child *childs [PID_HASHSIZE]; |
|
|
464 | static struct ev_signal childev; |
1142 | static ev_signal childev; |
|
|
1143 | |
|
|
1144 | #ifndef WIFCONTINUED |
|
|
1145 | # define WIFCONTINUED(status) 0 |
|
|
1146 | #endif |
|
|
1147 | |
|
|
1148 | void inline_speed |
|
|
1149 | child_reap (EV_P_ int chain, int pid, int status) |
|
|
1150 | { |
|
|
1151 | ev_child *w; |
|
|
1152 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
|
|
1153 | |
|
|
1154 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1155 | { |
|
|
1156 | if ((w->pid == pid || !w->pid) |
|
|
1157 | && (!traced || (w->flags & 1))) |
|
|
1158 | { |
|
|
1159 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
|
|
1160 | w->rpid = pid; |
|
|
1161 | w->rstatus = status; |
|
|
1162 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
1163 | } |
|
|
1164 | } |
|
|
1165 | } |
465 | |
1166 | |
466 | #ifndef WCONTINUED |
1167 | #ifndef WCONTINUED |
467 | # define WCONTINUED 0 |
1168 | # define WCONTINUED 0 |
468 | #endif |
1169 | #endif |
469 | |
1170 | |
470 | static void |
1171 | static void |
471 | childcb (struct ev_signal *sw, int revents) |
1172 | childcb (EV_P_ ev_signal *sw, int revents) |
472 | { |
1173 | { |
473 | struct ev_child *w; |
|
|
474 | int pid, status; |
1174 | int pid, status; |
475 | |
1175 | |
|
|
1176 | /* some systems define WCONTINUED but then fail to support it (linux 2.4) */ |
476 | while ((pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)) != -1) |
1177 | if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
477 | for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next) |
1178 | if (!WCONTINUED |
478 | if (w->pid == pid || !w->pid) |
1179 | || errno != EINVAL |
479 | { |
1180 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
480 | w->status = status; |
1181 | return; |
481 | event ((W)w, EV_CHILD); |
1182 | |
482 | } |
1183 | /* make sure we are called again until all children have been reaped */ |
|
|
1184 | /* we need to do it this way so that the callback gets called before we continue */ |
|
|
1185 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
|
|
1186 | |
|
|
1187 | child_reap (EV_A_ pid, pid, status); |
|
|
1188 | if (EV_PID_HASHSIZE > 1) |
|
|
1189 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
483 | } |
1190 | } |
|
|
1191 | |
|
|
1192 | #endif |
484 | |
1193 | |
485 | /*****************************************************************************/ |
1194 | /*****************************************************************************/ |
486 | |
1195 | |
|
|
1196 | #if EV_USE_PORT |
|
|
1197 | # include "ev_port.c" |
|
|
1198 | #endif |
|
|
1199 | #if EV_USE_KQUEUE |
|
|
1200 | # include "ev_kqueue.c" |
|
|
1201 | #endif |
487 | #if EV_USE_EPOLL |
1202 | #if EV_USE_EPOLL |
488 | # include "ev_epoll.c" |
1203 | # include "ev_epoll.c" |
489 | #endif |
1204 | #endif |
490 | #if EV_USE_POLL |
1205 | #if EV_USE_POLL |
491 | # include "ev_poll.c" |
1206 | # include "ev_poll.c" |
… | |
… | |
504 | ev_version_minor (void) |
1219 | ev_version_minor (void) |
505 | { |
1220 | { |
506 | return EV_VERSION_MINOR; |
1221 | return EV_VERSION_MINOR; |
507 | } |
1222 | } |
508 | |
1223 | |
509 | /* return true if we are running with elevated privileges and ignore env variables */ |
1224 | /* return true if we are running with elevated privileges and should ignore env variables */ |
510 | static int |
1225 | int inline_size |
511 | enable_secure () |
1226 | enable_secure (void) |
512 | { |
1227 | { |
|
|
1228 | #ifdef _WIN32 |
|
|
1229 | return 0; |
|
|
1230 | #else |
513 | return getuid () != geteuid () |
1231 | return getuid () != geteuid () |
514 | || getgid () != getegid (); |
1232 | || getgid () != getegid (); |
|
|
1233 | #endif |
515 | } |
1234 | } |
516 | |
1235 | |
517 | int ev_init (int methods) |
1236 | unsigned int |
|
|
1237 | ev_supported_backends (void) |
518 | { |
1238 | { |
519 | if (!ev_method) |
1239 | unsigned int flags = 0; |
|
|
1240 | |
|
|
1241 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
|
|
1242 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
|
|
1243 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
1244 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
1245 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
|
|
1246 | |
|
|
1247 | return flags; |
|
|
1248 | } |
|
|
1249 | |
|
|
1250 | unsigned int |
|
|
1251 | ev_recommended_backends (void) |
|
|
1252 | { |
|
|
1253 | unsigned int flags = ev_supported_backends (); |
|
|
1254 | |
|
|
1255 | #ifndef __NetBSD__ |
|
|
1256 | /* kqueue is borked on everything but netbsd apparently */ |
|
|
1257 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
|
|
1258 | flags &= ~EVBACKEND_KQUEUE; |
|
|
1259 | #endif |
|
|
1260 | #ifdef __APPLE__ |
|
|
1261 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
|
|
1262 | flags &= ~EVBACKEND_POLL; |
|
|
1263 | #endif |
|
|
1264 | |
|
|
1265 | return flags; |
|
|
1266 | } |
|
|
1267 | |
|
|
1268 | unsigned int |
|
|
1269 | ev_embeddable_backends (void) |
|
|
1270 | { |
|
|
1271 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
|
|
1272 | |
|
|
1273 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1274 | /* please fix it and tell me how to detect the fix */ |
|
|
1275 | flags &= ~EVBACKEND_EPOLL; |
|
|
1276 | |
|
|
1277 | return flags; |
|
|
1278 | } |
|
|
1279 | |
|
|
1280 | unsigned int |
|
|
1281 | ev_backend (EV_P) |
|
|
1282 | { |
|
|
1283 | return backend; |
|
|
1284 | } |
|
|
1285 | |
|
|
1286 | unsigned int |
|
|
1287 | ev_loop_count (EV_P) |
|
|
1288 | { |
|
|
1289 | return loop_count; |
|
|
1290 | } |
|
|
1291 | |
|
|
1292 | void |
|
|
1293 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1294 | { |
|
|
1295 | io_blocktime = interval; |
|
|
1296 | } |
|
|
1297 | |
|
|
1298 | void |
|
|
1299 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1300 | { |
|
|
1301 | timeout_blocktime = interval; |
|
|
1302 | } |
|
|
1303 | |
|
|
1304 | static void noinline |
|
|
1305 | loop_init (EV_P_ unsigned int flags) |
|
|
1306 | { |
|
|
1307 | if (!backend) |
520 | { |
1308 | { |
521 | #if EV_USE_MONOTONIC |
1309 | #if EV_USE_MONOTONIC |
522 | { |
1310 | { |
523 | struct timespec ts; |
1311 | struct timespec ts; |
524 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1312 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
525 | have_monotonic = 1; |
1313 | have_monotonic = 1; |
526 | } |
1314 | } |
527 | #endif |
1315 | #endif |
528 | |
1316 | |
529 | ev_now = ev_time (); |
1317 | ev_rt_now = ev_time (); |
530 | now = get_clock (); |
1318 | mn_now = get_clock (); |
531 | now_floor = now; |
1319 | now_floor = mn_now; |
532 | diff = ev_now - now; |
1320 | rtmn_diff = ev_rt_now - mn_now; |
533 | |
1321 | |
534 | if (pipe (sigpipe)) |
1322 | io_blocktime = 0.; |
535 | return 0; |
1323 | timeout_blocktime = 0.; |
|
|
1324 | backend = 0; |
|
|
1325 | backend_fd = -1; |
|
|
1326 | gotasync = 0; |
|
|
1327 | #if EV_USE_INOTIFY |
|
|
1328 | fs_fd = -2; |
|
|
1329 | #endif |
536 | |
1330 | |
537 | if (methods == EVMETHOD_AUTO) |
1331 | /* pid check not overridable via env */ |
538 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
1332 | #ifndef _WIN32 |
|
|
1333 | if (flags & EVFLAG_FORKCHECK) |
|
|
1334 | curpid = getpid (); |
|
|
1335 | #endif |
|
|
1336 | |
|
|
1337 | if (!(flags & EVFLAG_NOENV) |
|
|
1338 | && !enable_secure () |
|
|
1339 | && getenv ("LIBEV_FLAGS")) |
539 | methods = atoi (getenv ("LIBEV_METHODS")); |
1340 | flags = atoi (getenv ("LIBEV_FLAGS")); |
540 | else |
|
|
541 | methods = EVMETHOD_ANY; |
|
|
542 | |
1341 | |
543 | ev_method = 0; |
1342 | if (!(flags & 0x0000ffffU)) |
|
|
1343 | flags |= ev_recommended_backends (); |
|
|
1344 | |
|
|
1345 | #if EV_USE_PORT |
|
|
1346 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
|
|
1347 | #endif |
|
|
1348 | #if EV_USE_KQUEUE |
|
|
1349 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
|
|
1350 | #endif |
544 | #if EV_USE_EPOLL |
1351 | #if EV_USE_EPOLL |
545 | if (!ev_method && (methods & EVMETHOD_EPOLL )) epoll_init (methods); |
1352 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
546 | #endif |
1353 | #endif |
547 | #if EV_USE_POLL |
1354 | #if EV_USE_POLL |
548 | if (!ev_method && (methods & EVMETHOD_POLL )) poll_init (methods); |
1355 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
549 | #endif |
1356 | #endif |
550 | #if EV_USE_SELECT |
1357 | #if EV_USE_SELECT |
551 | if (!ev_method && (methods & EVMETHOD_SELECT)) select_init (methods); |
1358 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
552 | #endif |
1359 | #endif |
553 | |
1360 | |
554 | if (ev_method) |
1361 | ev_init (&pipeev, pipecb); |
|
|
1362 | ev_set_priority (&pipeev, EV_MAXPRI); |
|
|
1363 | } |
|
|
1364 | } |
|
|
1365 | |
|
|
1366 | static void noinline |
|
|
1367 | loop_destroy (EV_P) |
|
|
1368 | { |
|
|
1369 | int i; |
|
|
1370 | |
|
|
1371 | if (ev_is_active (&pipeev)) |
|
|
1372 | { |
|
|
1373 | ev_ref (EV_A); /* signal watcher */ |
|
|
1374 | ev_io_stop (EV_A_ &pipeev); |
|
|
1375 | |
|
|
1376 | #if EV_USE_EVENTFD |
|
|
1377 | if (evfd >= 0) |
|
|
1378 | close (evfd); |
|
|
1379 | #endif |
|
|
1380 | |
|
|
1381 | if (evpipe [0] >= 0) |
555 | { |
1382 | { |
556 | ev_watcher_init (&sigev, sigcb); |
1383 | close (evpipe [0]); |
557 | siginit (); |
1384 | close (evpipe [1]); |
|
|
1385 | } |
|
|
1386 | } |
558 | |
1387 | |
|
|
1388 | #if EV_USE_INOTIFY |
|
|
1389 | if (fs_fd >= 0) |
|
|
1390 | close (fs_fd); |
|
|
1391 | #endif |
|
|
1392 | |
|
|
1393 | if (backend_fd >= 0) |
|
|
1394 | close (backend_fd); |
|
|
1395 | |
|
|
1396 | #if EV_USE_PORT |
|
|
1397 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
|
|
1398 | #endif |
|
|
1399 | #if EV_USE_KQUEUE |
|
|
1400 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
|
|
1401 | #endif |
|
|
1402 | #if EV_USE_EPOLL |
|
|
1403 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
|
|
1404 | #endif |
|
|
1405 | #if EV_USE_POLL |
|
|
1406 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
|
|
1407 | #endif |
|
|
1408 | #if EV_USE_SELECT |
|
|
1409 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
|
|
1410 | #endif |
|
|
1411 | |
|
|
1412 | for (i = NUMPRI; i--; ) |
|
|
1413 | { |
|
|
1414 | array_free (pending, [i]); |
|
|
1415 | #if EV_IDLE_ENABLE |
|
|
1416 | array_free (idle, [i]); |
|
|
1417 | #endif |
|
|
1418 | } |
|
|
1419 | |
|
|
1420 | ev_free (anfds); anfdmax = 0; |
|
|
1421 | |
|
|
1422 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1423 | array_free (fdchange, EMPTY); |
|
|
1424 | array_free (timer, EMPTY); |
|
|
1425 | #if EV_PERIODIC_ENABLE |
|
|
1426 | array_free (periodic, EMPTY); |
|
|
1427 | #endif |
|
|
1428 | #if EV_FORK_ENABLE |
|
|
1429 | array_free (fork, EMPTY); |
|
|
1430 | #endif |
|
|
1431 | array_free (prepare, EMPTY); |
|
|
1432 | array_free (check, EMPTY); |
|
|
1433 | #if EV_ASYNC_ENABLE |
|
|
1434 | array_free (async, EMPTY); |
|
|
1435 | #endif |
|
|
1436 | |
|
|
1437 | backend = 0; |
|
|
1438 | } |
|
|
1439 | |
|
|
1440 | #if EV_USE_INOTIFY |
|
|
1441 | void inline_size infy_fork (EV_P); |
|
|
1442 | #endif |
|
|
1443 | |
|
|
1444 | void inline_size |
|
|
1445 | loop_fork (EV_P) |
|
|
1446 | { |
|
|
1447 | #if EV_USE_PORT |
|
|
1448 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
|
|
1449 | #endif |
|
|
1450 | #if EV_USE_KQUEUE |
|
|
1451 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
|
|
1452 | #endif |
|
|
1453 | #if EV_USE_EPOLL |
|
|
1454 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
|
|
1455 | #endif |
|
|
1456 | #if EV_USE_INOTIFY |
|
|
1457 | infy_fork (EV_A); |
|
|
1458 | #endif |
|
|
1459 | |
|
|
1460 | if (ev_is_active (&pipeev)) |
|
|
1461 | { |
|
|
1462 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1463 | /* while we modify the fd vars */ |
|
|
1464 | gotsig = 1; |
|
|
1465 | #if EV_ASYNC_ENABLE |
|
|
1466 | gotasync = 1; |
|
|
1467 | #endif |
|
|
1468 | |
|
|
1469 | ev_ref (EV_A); |
|
|
1470 | ev_io_stop (EV_A_ &pipeev); |
|
|
1471 | |
|
|
1472 | #if EV_USE_EVENTFD |
|
|
1473 | if (evfd >= 0) |
|
|
1474 | close (evfd); |
|
|
1475 | #endif |
|
|
1476 | |
|
|
1477 | if (evpipe [0] >= 0) |
|
|
1478 | { |
|
|
1479 | close (evpipe [0]); |
|
|
1480 | close (evpipe [1]); |
|
|
1481 | } |
|
|
1482 | |
|
|
1483 | evpipe_init (EV_A); |
|
|
1484 | /* now iterate over everything, in case we missed something */ |
|
|
1485 | pipecb (EV_A_ &pipeev, EV_READ); |
|
|
1486 | } |
|
|
1487 | |
|
|
1488 | postfork = 0; |
|
|
1489 | } |
|
|
1490 | |
|
|
1491 | #if EV_MULTIPLICITY |
|
|
1492 | |
|
|
1493 | struct ev_loop * |
|
|
1494 | ev_loop_new (unsigned int flags) |
|
|
1495 | { |
|
|
1496 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
|
|
1497 | |
|
|
1498 | memset (loop, 0, sizeof (struct ev_loop)); |
|
|
1499 | |
|
|
1500 | loop_init (EV_A_ flags); |
|
|
1501 | |
|
|
1502 | if (ev_backend (EV_A)) |
|
|
1503 | return loop; |
|
|
1504 | |
|
|
1505 | return 0; |
|
|
1506 | } |
|
|
1507 | |
|
|
1508 | void |
|
|
1509 | ev_loop_destroy (EV_P) |
|
|
1510 | { |
|
|
1511 | loop_destroy (EV_A); |
|
|
1512 | ev_free (loop); |
|
|
1513 | } |
|
|
1514 | |
|
|
1515 | void |
|
|
1516 | ev_loop_fork (EV_P) |
|
|
1517 | { |
|
|
1518 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1519 | } |
|
|
1520 | |
|
|
1521 | #if EV_VERIFY |
|
|
1522 | static void noinline |
|
|
1523 | verify_watcher (EV_P_ W w) |
|
|
1524 | { |
|
|
1525 | assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1526 | |
|
|
1527 | if (w->pending) |
|
|
1528 | assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1529 | } |
|
|
1530 | |
|
|
1531 | static void noinline |
|
|
1532 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1533 | { |
|
|
1534 | int i; |
|
|
1535 | |
|
|
1536 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1537 | { |
|
|
1538 | assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1539 | assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1540 | assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1541 | |
|
|
1542 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1543 | } |
|
|
1544 | } |
|
|
1545 | |
|
|
1546 | static void noinline |
|
|
1547 | array_verify (EV_P_ W *ws, int cnt) |
|
|
1548 | { |
|
|
1549 | while (cnt--) |
|
|
1550 | { |
|
|
1551 | assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1552 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1553 | } |
|
|
1554 | } |
|
|
1555 | #endif |
|
|
1556 | |
|
|
1557 | void |
|
|
1558 | ev_loop_verify (EV_P) |
|
|
1559 | { |
|
|
1560 | #if EV_VERIFY |
|
|
1561 | int i; |
|
|
1562 | WL w; |
|
|
1563 | |
|
|
1564 | assert (activecnt >= -1); |
|
|
1565 | |
|
|
1566 | assert (fdchangemax >= fdchangecnt); |
|
|
1567 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1568 | assert (("negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1569 | |
|
|
1570 | assert (anfdmax >= 0); |
|
|
1571 | for (i = 0; i < anfdmax; ++i) |
|
|
1572 | for (w = anfds [i].head; w; w = w->next) |
|
|
1573 | { |
|
|
1574 | verify_watcher (EV_A_ (W)w); |
|
|
1575 | assert (("inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1576 | assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1577 | } |
|
|
1578 | |
|
|
1579 | assert (timermax >= timercnt); |
|
|
1580 | verify_heap (EV_A_ timers, timercnt); |
|
|
1581 | |
|
|
1582 | #if EV_PERIODIC_ENABLE |
|
|
1583 | assert (periodicmax >= periodiccnt); |
|
|
1584 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
1585 | #endif |
|
|
1586 | |
|
|
1587 | for (i = NUMPRI; i--; ) |
|
|
1588 | { |
|
|
1589 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
1590 | #if EV_IDLE_ENABLE |
|
|
1591 | assert (idleall >= 0); |
|
|
1592 | assert (idlemax [i] >= idlecnt [i]); |
|
|
1593 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
1594 | #endif |
|
|
1595 | } |
|
|
1596 | |
|
|
1597 | #if EV_FORK_ENABLE |
|
|
1598 | assert (forkmax >= forkcnt); |
|
|
1599 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
1600 | #endif |
|
|
1601 | |
|
|
1602 | #if EV_ASYNC_ENABLE |
|
|
1603 | assert (asyncmax >= asynccnt); |
|
|
1604 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
1605 | #endif |
|
|
1606 | |
|
|
1607 | assert (preparemax >= preparecnt); |
|
|
1608 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1609 | |
|
|
1610 | assert (checkmax >= checkcnt); |
|
|
1611 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1612 | |
|
|
1613 | # if 0 |
|
|
1614 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1615 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
|
|
1616 | # endif |
|
|
1617 | #endif |
|
|
1618 | } |
|
|
1619 | |
|
|
1620 | #endif /* multiplicity */ |
|
|
1621 | |
|
|
1622 | #if EV_MULTIPLICITY |
|
|
1623 | struct ev_loop * |
|
|
1624 | ev_default_loop_init (unsigned int flags) |
|
|
1625 | #else |
|
|
1626 | int |
|
|
1627 | ev_default_loop (unsigned int flags) |
|
|
1628 | #endif |
|
|
1629 | { |
|
|
1630 | if (!ev_default_loop_ptr) |
|
|
1631 | { |
|
|
1632 | #if EV_MULTIPLICITY |
|
|
1633 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
|
|
1634 | #else |
|
|
1635 | ev_default_loop_ptr = 1; |
|
|
1636 | #endif |
|
|
1637 | |
|
|
1638 | loop_init (EV_A_ flags); |
|
|
1639 | |
|
|
1640 | if (ev_backend (EV_A)) |
|
|
1641 | { |
|
|
1642 | #ifndef _WIN32 |
559 | ev_signal_init (&childev, childcb, SIGCHLD); |
1643 | ev_signal_init (&childev, childcb, SIGCHLD); |
|
|
1644 | ev_set_priority (&childev, EV_MAXPRI); |
560 | ev_signal_start (&childev); |
1645 | ev_signal_start (EV_A_ &childev); |
|
|
1646 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
|
|
1647 | #endif |
561 | } |
1648 | } |
|
|
1649 | else |
|
|
1650 | ev_default_loop_ptr = 0; |
562 | } |
1651 | } |
563 | |
1652 | |
564 | return ev_method; |
1653 | return ev_default_loop_ptr; |
|
|
1654 | } |
|
|
1655 | |
|
|
1656 | void |
|
|
1657 | ev_default_destroy (void) |
|
|
1658 | { |
|
|
1659 | #if EV_MULTIPLICITY |
|
|
1660 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1661 | #endif |
|
|
1662 | |
|
|
1663 | #ifndef _WIN32 |
|
|
1664 | ev_ref (EV_A); /* child watcher */ |
|
|
1665 | ev_signal_stop (EV_A_ &childev); |
|
|
1666 | #endif |
|
|
1667 | |
|
|
1668 | loop_destroy (EV_A); |
|
|
1669 | } |
|
|
1670 | |
|
|
1671 | void |
|
|
1672 | ev_default_fork (void) |
|
|
1673 | { |
|
|
1674 | #if EV_MULTIPLICITY |
|
|
1675 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1676 | #endif |
|
|
1677 | |
|
|
1678 | if (backend) |
|
|
1679 | postfork = 1; /* must be in line with ev_loop_fork */ |
565 | } |
1680 | } |
566 | |
1681 | |
567 | /*****************************************************************************/ |
1682 | /*****************************************************************************/ |
568 | |
1683 | |
569 | void |
1684 | void |
570 | ev_fork_prepare (void) |
1685 | ev_invoke (EV_P_ void *w, int revents) |
571 | { |
1686 | { |
572 | /* nop */ |
1687 | EV_CB_INVOKE ((W)w, revents); |
573 | } |
1688 | } |
574 | |
1689 | |
575 | void |
1690 | void inline_speed |
576 | ev_fork_parent (void) |
|
|
577 | { |
|
|
578 | /* nop */ |
|
|
579 | } |
|
|
580 | |
|
|
581 | void |
|
|
582 | ev_fork_child (void) |
|
|
583 | { |
|
|
584 | #if EV_USE_EPOLL |
|
|
585 | if (ev_method == EVMETHOD_EPOLL) |
|
|
586 | epoll_postfork_child (); |
|
|
587 | #endif |
|
|
588 | |
|
|
589 | ev_io_stop (&sigev); |
|
|
590 | close (sigpipe [0]); |
|
|
591 | close (sigpipe [1]); |
|
|
592 | pipe (sigpipe); |
|
|
593 | siginit (); |
|
|
594 | } |
|
|
595 | |
|
|
596 | /*****************************************************************************/ |
|
|
597 | |
|
|
598 | static void |
|
|
599 | call_pending (void) |
1691 | call_pending (EV_P) |
600 | { |
1692 | { |
601 | int pri; |
1693 | int pri; |
602 | |
1694 | |
603 | for (pri = NUMPRI; pri--; ) |
1695 | for (pri = NUMPRI; pri--; ) |
604 | while (pendingcnt [pri]) |
1696 | while (pendingcnt [pri]) |
605 | { |
1697 | { |
606 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1698 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
607 | |
1699 | |
608 | if (p->w) |
1700 | if (expect_true (p->w)) |
609 | { |
1701 | { |
|
|
1702 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1703 | |
610 | p->w->pending = 0; |
1704 | p->w->pending = 0; |
611 | p->w->cb (p->w, p->events); |
1705 | EV_CB_INVOKE (p->w, p->events); |
|
|
1706 | EV_FREQUENT_CHECK; |
612 | } |
1707 | } |
613 | } |
1708 | } |
614 | } |
1709 | } |
615 | |
1710 | |
616 | static void |
1711 | #if EV_IDLE_ENABLE |
617 | timers_reify (void) |
1712 | void inline_size |
|
|
1713 | idle_reify (EV_P) |
618 | { |
1714 | { |
619 | while (timercnt && timers [0]->at <= now) |
1715 | if (expect_false (idleall)) |
|
|
1716 | { |
|
|
1717 | int pri; |
|
|
1718 | |
|
|
1719 | for (pri = NUMPRI; pri--; ) |
|
|
1720 | { |
|
|
1721 | if (pendingcnt [pri]) |
|
|
1722 | break; |
|
|
1723 | |
|
|
1724 | if (idlecnt [pri]) |
|
|
1725 | { |
|
|
1726 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
|
|
1727 | break; |
|
|
1728 | } |
|
|
1729 | } |
620 | { |
1730 | } |
621 | struct ev_timer *w = timers [0]; |
1731 | } |
|
|
1732 | #endif |
|
|
1733 | |
|
|
1734 | void inline_size |
|
|
1735 | timers_reify (EV_P) |
|
|
1736 | { |
|
|
1737 | EV_FREQUENT_CHECK; |
|
|
1738 | |
|
|
1739 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
|
|
1740 | { |
|
|
1741 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
1742 | |
|
|
1743 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
622 | |
1744 | |
623 | /* first reschedule or stop timer */ |
1745 | /* first reschedule or stop timer */ |
624 | if (w->repeat) |
1746 | if (w->repeat) |
625 | { |
1747 | { |
|
|
1748 | ev_at (w) += w->repeat; |
|
|
1749 | if (ev_at (w) < mn_now) |
|
|
1750 | ev_at (w) = mn_now; |
|
|
1751 | |
626 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1752 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
627 | w->at = now + w->repeat; |
1753 | |
|
|
1754 | ANHE_at_cache (timers [HEAP0]); |
628 | downheap ((WT *)timers, timercnt, 0); |
1755 | downheap (timers, timercnt, HEAP0); |
629 | } |
1756 | } |
630 | else |
1757 | else |
631 | ev_timer_stop (w); /* nonrepeating: stop timer */ |
1758 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
632 | |
1759 | |
|
|
1760 | EV_FREQUENT_CHECK; |
633 | event ((W)w, EV_TIMEOUT); |
1761 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
634 | } |
1762 | } |
635 | } |
1763 | } |
636 | |
1764 | |
637 | static void |
1765 | #if EV_PERIODIC_ENABLE |
|
|
1766 | void inline_size |
638 | periodics_reify (void) |
1767 | periodics_reify (EV_P) |
639 | { |
1768 | { |
|
|
1769 | EV_FREQUENT_CHECK; |
|
|
1770 | |
640 | while (periodiccnt && periodics [0]->at <= ev_now) |
1771 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
641 | { |
1772 | { |
642 | struct ev_periodic *w = periodics [0]; |
1773 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
1774 | |
|
|
1775 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
643 | |
1776 | |
644 | /* first reschedule or stop timer */ |
1777 | /* first reschedule or stop timer */ |
645 | if (w->interval) |
1778 | if (w->reschedule_cb) |
646 | { |
1779 | { |
647 | w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval; |
1780 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
648 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > ev_now)); |
1781 | |
|
|
1782 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
1783 | |
|
|
1784 | ANHE_at_cache (periodics [HEAP0]); |
649 | downheap ((WT *)periodics, periodiccnt, 0); |
1785 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1786 | } |
|
|
1787 | else if (w->interval) |
|
|
1788 | { |
|
|
1789 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1790 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1791 | /* this might happen because of floating point inexactness */ |
|
|
1792 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1793 | { |
|
|
1794 | ev_at (w) += w->interval; |
|
|
1795 | |
|
|
1796 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1797 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1798 | /* has effectively asked to get triggered more often than possible */ |
|
|
1799 | if (ev_at (w) < ev_rt_now) |
|
|
1800 | ev_at (w) = ev_rt_now; |
|
|
1801 | } |
|
|
1802 | |
|
|
1803 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1804 | downheap (periodics, periodiccnt, HEAP0); |
650 | } |
1805 | } |
651 | else |
1806 | else |
652 | ev_periodic_stop (w); /* nonrepeating: stop timer */ |
1807 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
653 | |
1808 | |
|
|
1809 | EV_FREQUENT_CHECK; |
654 | event ((W)w, EV_PERIODIC); |
1810 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
655 | } |
1811 | } |
656 | } |
1812 | } |
657 | |
1813 | |
658 | static void |
1814 | static void noinline |
659 | periodics_reschedule (ev_tstamp diff) |
1815 | periodics_reschedule (EV_P) |
660 | { |
1816 | { |
661 | int i; |
1817 | int i; |
662 | |
1818 | |
663 | /* adjust periodics after time jump */ |
1819 | /* adjust periodics after time jump */ |
664 | for (i = 0; i < periodiccnt; ++i) |
1820 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
665 | { |
1821 | { |
666 | struct ev_periodic *w = periodics [i]; |
1822 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
667 | |
1823 | |
|
|
1824 | if (w->reschedule_cb) |
|
|
1825 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
668 | if (w->interval) |
1826 | else if (w->interval) |
|
|
1827 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1828 | |
|
|
1829 | ANHE_at_cache (periodics [i]); |
|
|
1830 | } |
|
|
1831 | |
|
|
1832 | reheap (periodics, periodiccnt); |
|
|
1833 | } |
|
|
1834 | #endif |
|
|
1835 | |
|
|
1836 | void inline_speed |
|
|
1837 | time_update (EV_P_ ev_tstamp max_block) |
|
|
1838 | { |
|
|
1839 | int i; |
|
|
1840 | |
|
|
1841 | #if EV_USE_MONOTONIC |
|
|
1842 | if (expect_true (have_monotonic)) |
|
|
1843 | { |
|
|
1844 | ev_tstamp odiff = rtmn_diff; |
|
|
1845 | |
|
|
1846 | mn_now = get_clock (); |
|
|
1847 | |
|
|
1848 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
1849 | /* interpolate in the meantime */ |
|
|
1850 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
669 | { |
1851 | { |
670 | ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval; |
1852 | ev_rt_now = rtmn_diff + mn_now; |
|
|
1853 | return; |
|
|
1854 | } |
671 | |
1855 | |
672 | if (fabs (diff) >= 1e-4) |
1856 | now_floor = mn_now; |
|
|
1857 | ev_rt_now = ev_time (); |
|
|
1858 | |
|
|
1859 | /* loop a few times, before making important decisions. |
|
|
1860 | * on the choice of "4": one iteration isn't enough, |
|
|
1861 | * in case we get preempted during the calls to |
|
|
1862 | * ev_time and get_clock. a second call is almost guaranteed |
|
|
1863 | * to succeed in that case, though. and looping a few more times |
|
|
1864 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1865 | * in the unlikely event of having been preempted here. |
|
|
1866 | */ |
|
|
1867 | for (i = 4; --i; ) |
|
|
1868 | { |
|
|
1869 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1870 | |
|
|
1871 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
|
|
1872 | return; /* all is well */ |
|
|
1873 | |
|
|
1874 | ev_rt_now = ev_time (); |
|
|
1875 | mn_now = get_clock (); |
|
|
1876 | now_floor = mn_now; |
|
|
1877 | } |
|
|
1878 | |
|
|
1879 | # if EV_PERIODIC_ENABLE |
|
|
1880 | periodics_reschedule (EV_A); |
|
|
1881 | # endif |
|
|
1882 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1883 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1884 | } |
|
|
1885 | else |
|
|
1886 | #endif |
|
|
1887 | { |
|
|
1888 | ev_rt_now = ev_time (); |
|
|
1889 | |
|
|
1890 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
|
|
1891 | { |
|
|
1892 | #if EV_PERIODIC_ENABLE |
|
|
1893 | periodics_reschedule (EV_A); |
|
|
1894 | #endif |
|
|
1895 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1896 | for (i = 0; i < timercnt; ++i) |
673 | { |
1897 | { |
674 | ev_periodic_stop (w); |
1898 | ANHE *he = timers + i + HEAP0; |
675 | ev_periodic_start (w); |
1899 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
676 | |
1900 | ANHE_at_cache (*he); |
677 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
|
|
678 | } |
1901 | } |
679 | } |
1902 | } |
680 | } |
|
|
681 | } |
|
|
682 | |
1903 | |
683 | static int |
|
|
684 | time_update_monotonic (void) |
|
|
685 | { |
|
|
686 | now = get_clock (); |
|
|
687 | |
|
|
688 | if (expect_true (now - now_floor < MIN_TIMEJUMP * .5)) |
|
|
689 | { |
|
|
690 | ev_now = now + diff; |
|
|
691 | return 0; |
|
|
692 | } |
|
|
693 | else |
|
|
694 | { |
|
|
695 | now_floor = now; |
|
|
696 | ev_now = ev_time (); |
|
|
697 | return 1; |
|
|
698 | } |
|
|
699 | } |
|
|
700 | |
|
|
701 | static void |
|
|
702 | time_update (void) |
|
|
703 | { |
|
|
704 | int i; |
|
|
705 | |
|
|
706 | #if EV_USE_MONOTONIC |
|
|
707 | if (expect_true (have_monotonic)) |
|
|
708 | { |
|
|
709 | if (time_update_monotonic ()) |
|
|
710 | { |
|
|
711 | ev_tstamp odiff = diff; |
|
|
712 | |
|
|
713 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
|
|
714 | { |
|
|
715 | diff = ev_now - now; |
|
|
716 | |
|
|
717 | if (fabs (odiff - diff) < MIN_TIMEJUMP) |
|
|
718 | return; /* all is well */ |
|
|
719 | |
|
|
720 | ev_now = ev_time (); |
|
|
721 | now = get_clock (); |
|
|
722 | now_floor = now; |
|
|
723 | } |
|
|
724 | |
|
|
725 | periodics_reschedule (diff - odiff); |
|
|
726 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
727 | } |
|
|
728 | } |
|
|
729 | else |
|
|
730 | #endif |
|
|
731 | { |
|
|
732 | ev_now = ev_time (); |
|
|
733 | |
|
|
734 | if (expect_false (now > ev_now || now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
|
|
735 | { |
|
|
736 | periodics_reschedule (ev_now - now); |
|
|
737 | |
|
|
738 | /* adjust timers. this is easy, as the offset is the same for all */ |
|
|
739 | for (i = 0; i < timercnt; ++i) |
|
|
740 | timers [i]->at += diff; |
|
|
741 | } |
|
|
742 | |
|
|
743 | now = ev_now; |
1904 | mn_now = ev_rt_now; |
744 | } |
1905 | } |
745 | } |
1906 | } |
746 | |
1907 | |
747 | int ev_loop_done; |
1908 | void |
|
|
1909 | ev_ref (EV_P) |
|
|
1910 | { |
|
|
1911 | ++activecnt; |
|
|
1912 | } |
748 | |
1913 | |
|
|
1914 | void |
|
|
1915 | ev_unref (EV_P) |
|
|
1916 | { |
|
|
1917 | --activecnt; |
|
|
1918 | } |
|
|
1919 | |
|
|
1920 | void |
|
|
1921 | ev_now_update (EV_P) |
|
|
1922 | { |
|
|
1923 | time_update (EV_A_ 1e100); |
|
|
1924 | } |
|
|
1925 | |
|
|
1926 | static int loop_done; |
|
|
1927 | |
|
|
1928 | void |
749 | void ev_loop (int flags) |
1929 | ev_loop (EV_P_ int flags) |
750 | { |
1930 | { |
751 | double block; |
1931 | loop_done = EVUNLOOP_CANCEL; |
752 | ev_loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
1932 | |
|
|
1933 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
753 | |
1934 | |
754 | do |
1935 | do |
755 | { |
1936 | { |
|
|
1937 | #if EV_VERIFY >= 2 |
|
|
1938 | ev_loop_verify (EV_A); |
|
|
1939 | #endif |
|
|
1940 | |
|
|
1941 | #ifndef _WIN32 |
|
|
1942 | if (expect_false (curpid)) /* penalise the forking check even more */ |
|
|
1943 | if (expect_false (getpid () != curpid)) |
|
|
1944 | { |
|
|
1945 | curpid = getpid (); |
|
|
1946 | postfork = 1; |
|
|
1947 | } |
|
|
1948 | #endif |
|
|
1949 | |
|
|
1950 | #if EV_FORK_ENABLE |
|
|
1951 | /* we might have forked, so queue fork handlers */ |
|
|
1952 | if (expect_false (postfork)) |
|
|
1953 | if (forkcnt) |
|
|
1954 | { |
|
|
1955 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
|
|
1956 | call_pending (EV_A); |
|
|
1957 | } |
|
|
1958 | #endif |
|
|
1959 | |
756 | /* queue check watchers (and execute them) */ |
1960 | /* queue prepare watchers (and execute them) */ |
757 | if (expect_false (preparecnt)) |
1961 | if (expect_false (preparecnt)) |
758 | { |
1962 | { |
759 | queue_events ((W *)prepares, preparecnt, EV_PREPARE); |
1963 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
760 | call_pending (); |
1964 | call_pending (EV_A); |
761 | } |
1965 | } |
762 | |
1966 | |
|
|
1967 | if (expect_false (!activecnt)) |
|
|
1968 | break; |
|
|
1969 | |
|
|
1970 | /* we might have forked, so reify kernel state if necessary */ |
|
|
1971 | if (expect_false (postfork)) |
|
|
1972 | loop_fork (EV_A); |
|
|
1973 | |
763 | /* update fd-related kernel structures */ |
1974 | /* update fd-related kernel structures */ |
764 | fd_reify (); |
1975 | fd_reify (EV_A); |
765 | |
1976 | |
766 | /* calculate blocking time */ |
1977 | /* calculate blocking time */ |
|
|
1978 | { |
|
|
1979 | ev_tstamp waittime = 0.; |
|
|
1980 | ev_tstamp sleeptime = 0.; |
767 | |
1981 | |
768 | /* we only need this for !monotonic clockor timers, but as we basically |
1982 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
769 | always have timers, we just calculate it always */ |
|
|
770 | #if EV_USE_MONOTONIC |
|
|
771 | if (expect_true (have_monotonic)) |
|
|
772 | time_update_monotonic (); |
|
|
773 | else |
|
|
774 | #endif |
|
|
775 | { |
1983 | { |
776 | ev_now = ev_time (); |
1984 | /* update time to cancel out callback processing overhead */ |
777 | now = ev_now; |
1985 | time_update (EV_A_ 1e100); |
778 | } |
|
|
779 | |
1986 | |
780 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
|
|
781 | block = 0.; |
|
|
782 | else |
|
|
783 | { |
|
|
784 | block = MAX_BLOCKTIME; |
1987 | waittime = MAX_BLOCKTIME; |
785 | |
1988 | |
786 | if (timercnt) |
1989 | if (timercnt) |
787 | { |
1990 | { |
788 | ev_tstamp to = timers [0]->at - now + method_fudge; |
1991 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
789 | if (block > to) block = to; |
1992 | if (waittime > to) waittime = to; |
790 | } |
1993 | } |
791 | |
1994 | |
|
|
1995 | #if EV_PERIODIC_ENABLE |
792 | if (periodiccnt) |
1996 | if (periodiccnt) |
793 | { |
1997 | { |
794 | ev_tstamp to = periodics [0]->at - ev_now + method_fudge; |
1998 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
795 | if (block > to) block = to; |
1999 | if (waittime > to) waittime = to; |
796 | } |
2000 | } |
|
|
2001 | #endif |
797 | |
2002 | |
798 | if (block < 0.) block = 0.; |
2003 | if (expect_false (waittime < timeout_blocktime)) |
|
|
2004 | waittime = timeout_blocktime; |
|
|
2005 | |
|
|
2006 | sleeptime = waittime - backend_fudge; |
|
|
2007 | |
|
|
2008 | if (expect_true (sleeptime > io_blocktime)) |
|
|
2009 | sleeptime = io_blocktime; |
|
|
2010 | |
|
|
2011 | if (sleeptime) |
|
|
2012 | { |
|
|
2013 | ev_sleep (sleeptime); |
|
|
2014 | waittime -= sleeptime; |
|
|
2015 | } |
799 | } |
2016 | } |
800 | |
2017 | |
801 | method_poll (block); |
2018 | ++loop_count; |
|
|
2019 | backend_poll (EV_A_ waittime); |
802 | |
2020 | |
803 | /* update ev_now, do magic */ |
2021 | /* update ev_rt_now, do magic */ |
804 | time_update (); |
2022 | time_update (EV_A_ waittime + sleeptime); |
|
|
2023 | } |
805 | |
2024 | |
806 | /* queue pending timers and reschedule them */ |
2025 | /* queue pending timers and reschedule them */ |
807 | timers_reify (); /* relative timers called last */ |
2026 | timers_reify (EV_A); /* relative timers called last */ |
|
|
2027 | #if EV_PERIODIC_ENABLE |
808 | periodics_reify (); /* absolute timers called first */ |
2028 | periodics_reify (EV_A); /* absolute timers called first */ |
|
|
2029 | #endif |
809 | |
2030 | |
|
|
2031 | #if EV_IDLE_ENABLE |
810 | /* queue idle watchers unless io or timers are pending */ |
2032 | /* queue idle watchers unless other events are pending */ |
811 | if (!pendingcnt) |
2033 | idle_reify (EV_A); |
812 | queue_events ((W *)idles, idlecnt, EV_IDLE); |
2034 | #endif |
813 | |
2035 | |
814 | /* queue check watchers, to be executed first */ |
2036 | /* queue check watchers, to be executed first */ |
815 | if (checkcnt) |
2037 | if (expect_false (checkcnt)) |
816 | queue_events ((W *)checks, checkcnt, EV_CHECK); |
2038 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
817 | |
2039 | |
818 | call_pending (); |
2040 | call_pending (EV_A); |
819 | } |
2041 | } |
820 | while (!ev_loop_done); |
2042 | while (expect_true ( |
|
|
2043 | activecnt |
|
|
2044 | && !loop_done |
|
|
2045 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
2046 | )); |
821 | |
2047 | |
822 | if (ev_loop_done != 2) |
2048 | if (loop_done == EVUNLOOP_ONE) |
|
|
2049 | loop_done = EVUNLOOP_CANCEL; |
|
|
2050 | } |
|
|
2051 | |
|
|
2052 | void |
|
|
2053 | ev_unloop (EV_P_ int how) |
|
|
2054 | { |
823 | ev_loop_done = 0; |
2055 | loop_done = how; |
824 | } |
2056 | } |
825 | |
2057 | |
826 | /*****************************************************************************/ |
2058 | /*****************************************************************************/ |
827 | |
2059 | |
828 | static void |
2060 | void inline_size |
829 | wlist_add (WL *head, WL elem) |
2061 | wlist_add (WL *head, WL elem) |
830 | { |
2062 | { |
831 | elem->next = *head; |
2063 | elem->next = *head; |
832 | *head = elem; |
2064 | *head = elem; |
833 | } |
2065 | } |
834 | |
2066 | |
835 | static void |
2067 | void inline_size |
836 | wlist_del (WL *head, WL elem) |
2068 | wlist_del (WL *head, WL elem) |
837 | { |
2069 | { |
838 | while (*head) |
2070 | while (*head) |
839 | { |
2071 | { |
840 | if (*head == elem) |
2072 | if (*head == elem) |
… | |
… | |
845 | |
2077 | |
846 | head = &(*head)->next; |
2078 | head = &(*head)->next; |
847 | } |
2079 | } |
848 | } |
2080 | } |
849 | |
2081 | |
850 | static void |
2082 | void inline_speed |
851 | ev_clear_pending (W w) |
2083 | clear_pending (EV_P_ W w) |
852 | { |
2084 | { |
853 | if (w->pending) |
2085 | if (w->pending) |
854 | { |
2086 | { |
855 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2087 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
856 | w->pending = 0; |
2088 | w->pending = 0; |
857 | } |
2089 | } |
858 | } |
2090 | } |
859 | |
2091 | |
860 | static void |
2092 | int |
|
|
2093 | ev_clear_pending (EV_P_ void *w) |
|
|
2094 | { |
|
|
2095 | W w_ = (W)w; |
|
|
2096 | int pending = w_->pending; |
|
|
2097 | |
|
|
2098 | if (expect_true (pending)) |
|
|
2099 | { |
|
|
2100 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2101 | w_->pending = 0; |
|
|
2102 | p->w = 0; |
|
|
2103 | return p->events; |
|
|
2104 | } |
|
|
2105 | else |
|
|
2106 | return 0; |
|
|
2107 | } |
|
|
2108 | |
|
|
2109 | void inline_size |
|
|
2110 | pri_adjust (EV_P_ W w) |
|
|
2111 | { |
|
|
2112 | int pri = w->priority; |
|
|
2113 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
|
|
2114 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
|
|
2115 | w->priority = pri; |
|
|
2116 | } |
|
|
2117 | |
|
|
2118 | void inline_speed |
861 | ev_start (W w, int active) |
2119 | ev_start (EV_P_ W w, int active) |
862 | { |
2120 | { |
863 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
2121 | pri_adjust (EV_A_ w); |
864 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
865 | |
|
|
866 | w->active = active; |
2122 | w->active = active; |
|
|
2123 | ev_ref (EV_A); |
867 | } |
2124 | } |
868 | |
2125 | |
869 | static void |
2126 | void inline_size |
870 | ev_stop (W w) |
2127 | ev_stop (EV_P_ W w) |
871 | { |
2128 | { |
|
|
2129 | ev_unref (EV_A); |
872 | w->active = 0; |
2130 | w->active = 0; |
873 | } |
2131 | } |
874 | |
2132 | |
875 | /*****************************************************************************/ |
2133 | /*****************************************************************************/ |
876 | |
2134 | |
877 | void |
2135 | void noinline |
878 | ev_io_start (struct ev_io *w) |
2136 | ev_io_start (EV_P_ ev_io *w) |
879 | { |
2137 | { |
880 | int fd = w->fd; |
2138 | int fd = w->fd; |
881 | |
2139 | |
882 | if (ev_is_active (w)) |
2140 | if (expect_false (ev_is_active (w))) |
883 | return; |
2141 | return; |
884 | |
2142 | |
885 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2143 | assert (("ev_io_start called with negative fd", fd >= 0)); |
886 | |
2144 | |
|
|
2145 | EV_FREQUENT_CHECK; |
|
|
2146 | |
887 | ev_start ((W)w, 1); |
2147 | ev_start (EV_A_ (W)w, 1); |
888 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
2148 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
889 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
2149 | wlist_add (&anfds[fd].head, (WL)w); |
890 | |
2150 | |
891 | fd_change (fd); |
2151 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
892 | } |
2152 | w->events &= ~EV_IOFDSET; |
893 | |
2153 | |
894 | void |
2154 | EV_FREQUENT_CHECK; |
|
|
2155 | } |
|
|
2156 | |
|
|
2157 | void noinline |
895 | ev_io_stop (struct ev_io *w) |
2158 | ev_io_stop (EV_P_ ev_io *w) |
896 | { |
2159 | { |
897 | ev_clear_pending ((W)w); |
2160 | clear_pending (EV_A_ (W)w); |
898 | if (!ev_is_active (w)) |
2161 | if (expect_false (!ev_is_active (w))) |
899 | return; |
2162 | return; |
900 | |
2163 | |
|
|
2164 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
2165 | |
|
|
2166 | EV_FREQUENT_CHECK; |
|
|
2167 | |
901 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
2168 | wlist_del (&anfds[w->fd].head, (WL)w); |
902 | ev_stop ((W)w); |
2169 | ev_stop (EV_A_ (W)w); |
903 | |
2170 | |
904 | fd_change (w->fd); |
2171 | fd_change (EV_A_ w->fd, 1); |
905 | } |
|
|
906 | |
2172 | |
907 | void |
2173 | EV_FREQUENT_CHECK; |
|
|
2174 | } |
|
|
2175 | |
|
|
2176 | void noinline |
908 | ev_timer_start (struct ev_timer *w) |
2177 | ev_timer_start (EV_P_ ev_timer *w) |
909 | { |
2178 | { |
910 | if (ev_is_active (w)) |
2179 | if (expect_false (ev_is_active (w))) |
911 | return; |
2180 | return; |
912 | |
2181 | |
913 | w->at += now; |
2182 | ev_at (w) += mn_now; |
914 | |
2183 | |
915 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2184 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
916 | |
2185 | |
917 | ev_start ((W)w, ++timercnt); |
2186 | EV_FREQUENT_CHECK; |
918 | array_needsize (timers, timermax, timercnt, ); |
|
|
919 | timers [timercnt - 1] = w; |
|
|
920 | upheap ((WT *)timers, timercnt - 1); |
|
|
921 | } |
|
|
922 | |
2187 | |
923 | void |
2188 | ++timercnt; |
|
|
2189 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
|
|
2190 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
|
|
2191 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
|
|
2192 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
2193 | upheap (timers, ev_active (w)); |
|
|
2194 | |
|
|
2195 | EV_FREQUENT_CHECK; |
|
|
2196 | |
|
|
2197 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
|
|
2198 | } |
|
|
2199 | |
|
|
2200 | void noinline |
924 | ev_timer_stop (struct ev_timer *w) |
2201 | ev_timer_stop (EV_P_ ev_timer *w) |
925 | { |
2202 | { |
926 | ev_clear_pending ((W)w); |
2203 | clear_pending (EV_A_ (W)w); |
927 | if (!ev_is_active (w)) |
2204 | if (expect_false (!ev_is_active (w))) |
928 | return; |
2205 | return; |
929 | |
2206 | |
930 | if (w->active < timercnt--) |
2207 | EV_FREQUENT_CHECK; |
|
|
2208 | |
|
|
2209 | { |
|
|
2210 | int active = ev_active (w); |
|
|
2211 | |
|
|
2212 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
2213 | |
|
|
2214 | --timercnt; |
|
|
2215 | |
|
|
2216 | if (expect_true (active < timercnt + HEAP0)) |
931 | { |
2217 | { |
932 | timers [w->active - 1] = timers [timercnt]; |
2218 | timers [active] = timers [timercnt + HEAP0]; |
933 | downheap ((WT *)timers, timercnt, w->active - 1); |
2219 | adjustheap (timers, timercnt, active); |
934 | } |
2220 | } |
|
|
2221 | } |
935 | |
2222 | |
936 | w->at = w->repeat; |
2223 | EV_FREQUENT_CHECK; |
937 | |
2224 | |
|
|
2225 | ev_at (w) -= mn_now; |
|
|
2226 | |
938 | ev_stop ((W)w); |
2227 | ev_stop (EV_A_ (W)w); |
939 | } |
2228 | } |
940 | |
2229 | |
941 | void |
2230 | void noinline |
942 | ev_timer_again (struct ev_timer *w) |
2231 | ev_timer_again (EV_P_ ev_timer *w) |
943 | { |
2232 | { |
|
|
2233 | EV_FREQUENT_CHECK; |
|
|
2234 | |
944 | if (ev_is_active (w)) |
2235 | if (ev_is_active (w)) |
945 | { |
2236 | { |
946 | if (w->repeat) |
2237 | if (w->repeat) |
947 | { |
2238 | { |
948 | w->at = now + w->repeat; |
2239 | ev_at (w) = mn_now + w->repeat; |
|
|
2240 | ANHE_at_cache (timers [ev_active (w)]); |
949 | downheap ((WT *)timers, timercnt, w->active - 1); |
2241 | adjustheap (timers, timercnt, ev_active (w)); |
950 | } |
2242 | } |
951 | else |
2243 | else |
952 | ev_timer_stop (w); |
2244 | ev_timer_stop (EV_A_ w); |
953 | } |
2245 | } |
954 | else if (w->repeat) |
2246 | else if (w->repeat) |
|
|
2247 | { |
|
|
2248 | ev_at (w) = w->repeat; |
955 | ev_timer_start (w); |
2249 | ev_timer_start (EV_A_ w); |
956 | } |
2250 | } |
957 | |
2251 | |
958 | void |
2252 | EV_FREQUENT_CHECK; |
|
|
2253 | } |
|
|
2254 | |
|
|
2255 | #if EV_PERIODIC_ENABLE |
|
|
2256 | void noinline |
959 | ev_periodic_start (struct ev_periodic *w) |
2257 | ev_periodic_start (EV_P_ ev_periodic *w) |
960 | { |
2258 | { |
961 | if (ev_is_active (w)) |
2259 | if (expect_false (ev_is_active (w))) |
962 | return; |
2260 | return; |
963 | |
2261 | |
|
|
2262 | if (w->reschedule_cb) |
|
|
2263 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2264 | else if (w->interval) |
|
|
2265 | { |
964 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2266 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
965 | |
|
|
966 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2267 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
967 | if (w->interval) |
|
|
968 | w->at += ceil ((ev_now - w->at) / w->interval) * w->interval; |
2268 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2269 | } |
|
|
2270 | else |
|
|
2271 | ev_at (w) = w->offset; |
969 | |
2272 | |
|
|
2273 | EV_FREQUENT_CHECK; |
|
|
2274 | |
|
|
2275 | ++periodiccnt; |
970 | ev_start ((W)w, ++periodiccnt); |
2276 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
971 | array_needsize (periodics, periodicmax, periodiccnt, ); |
2277 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
972 | periodics [periodiccnt - 1] = w; |
2278 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
973 | upheap ((WT *)periodics, periodiccnt - 1); |
2279 | ANHE_at_cache (periodics [ev_active (w)]); |
974 | } |
2280 | upheap (periodics, ev_active (w)); |
975 | |
2281 | |
976 | void |
2282 | EV_FREQUENT_CHECK; |
|
|
2283 | |
|
|
2284 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
|
|
2285 | } |
|
|
2286 | |
|
|
2287 | void noinline |
977 | ev_periodic_stop (struct ev_periodic *w) |
2288 | ev_periodic_stop (EV_P_ ev_periodic *w) |
978 | { |
2289 | { |
979 | ev_clear_pending ((W)w); |
2290 | clear_pending (EV_A_ (W)w); |
980 | if (!ev_is_active (w)) |
2291 | if (expect_false (!ev_is_active (w))) |
981 | return; |
2292 | return; |
982 | |
2293 | |
983 | if (w->active < periodiccnt--) |
2294 | EV_FREQUENT_CHECK; |
|
|
2295 | |
|
|
2296 | { |
|
|
2297 | int active = ev_active (w); |
|
|
2298 | |
|
|
2299 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
|
|
2300 | |
|
|
2301 | --periodiccnt; |
|
|
2302 | |
|
|
2303 | if (expect_true (active < periodiccnt + HEAP0)) |
984 | { |
2304 | { |
985 | periodics [w->active - 1] = periodics [periodiccnt]; |
2305 | periodics [active] = periodics [periodiccnt + HEAP0]; |
986 | downheap ((WT *)periodics, periodiccnt, w->active - 1); |
2306 | adjustheap (periodics, periodiccnt, active); |
987 | } |
2307 | } |
|
|
2308 | } |
988 | |
2309 | |
|
|
2310 | EV_FREQUENT_CHECK; |
|
|
2311 | |
989 | ev_stop ((W)w); |
2312 | ev_stop (EV_A_ (W)w); |
990 | } |
2313 | } |
991 | |
2314 | |
992 | void |
2315 | void noinline |
|
|
2316 | ev_periodic_again (EV_P_ ev_periodic *w) |
|
|
2317 | { |
|
|
2318 | /* TODO: use adjustheap and recalculation */ |
|
|
2319 | ev_periodic_stop (EV_A_ w); |
|
|
2320 | ev_periodic_start (EV_A_ w); |
|
|
2321 | } |
|
|
2322 | #endif |
|
|
2323 | |
|
|
2324 | #ifndef SA_RESTART |
|
|
2325 | # define SA_RESTART 0 |
|
|
2326 | #endif |
|
|
2327 | |
|
|
2328 | void noinline |
993 | ev_signal_start (struct ev_signal *w) |
2329 | ev_signal_start (EV_P_ ev_signal *w) |
994 | { |
2330 | { |
|
|
2331 | #if EV_MULTIPLICITY |
|
|
2332 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2333 | #endif |
995 | if (ev_is_active (w)) |
2334 | if (expect_false (ev_is_active (w))) |
996 | return; |
2335 | return; |
997 | |
2336 | |
998 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2337 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
999 | |
2338 | |
1000 | ev_start ((W)w, 1); |
2339 | evpipe_init (EV_A); |
|
|
2340 | |
|
|
2341 | EV_FREQUENT_CHECK; |
|
|
2342 | |
|
|
2343 | { |
|
|
2344 | #ifndef _WIN32 |
|
|
2345 | sigset_t full, prev; |
|
|
2346 | sigfillset (&full); |
|
|
2347 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2348 | #endif |
|
|
2349 | |
1001 | array_needsize (signals, signalmax, w->signum, signals_init); |
2350 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
2351 | |
|
|
2352 | #ifndef _WIN32 |
|
|
2353 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
2354 | #endif |
|
|
2355 | } |
|
|
2356 | |
|
|
2357 | ev_start (EV_A_ (W)w, 1); |
1002 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
2358 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1003 | |
2359 | |
1004 | if (!w->next) |
2360 | if (!((WL)w)->next) |
1005 | { |
2361 | { |
|
|
2362 | #if _WIN32 |
|
|
2363 | signal (w->signum, ev_sighandler); |
|
|
2364 | #else |
1006 | struct sigaction sa; |
2365 | struct sigaction sa; |
1007 | sa.sa_handler = sighandler; |
2366 | sa.sa_handler = ev_sighandler; |
1008 | sigfillset (&sa.sa_mask); |
2367 | sigfillset (&sa.sa_mask); |
1009 | sa.sa_flags = 0; |
2368 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1010 | sigaction (w->signum, &sa, 0); |
2369 | sigaction (w->signum, &sa, 0); |
|
|
2370 | #endif |
1011 | } |
2371 | } |
1012 | } |
|
|
1013 | |
2372 | |
1014 | void |
2373 | EV_FREQUENT_CHECK; |
|
|
2374 | } |
|
|
2375 | |
|
|
2376 | void noinline |
1015 | ev_signal_stop (struct ev_signal *w) |
2377 | ev_signal_stop (EV_P_ ev_signal *w) |
1016 | { |
2378 | { |
1017 | ev_clear_pending ((W)w); |
2379 | clear_pending (EV_A_ (W)w); |
1018 | if (!ev_is_active (w)) |
2380 | if (expect_false (!ev_is_active (w))) |
1019 | return; |
2381 | return; |
1020 | |
2382 | |
|
|
2383 | EV_FREQUENT_CHECK; |
|
|
2384 | |
1021 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
2385 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1022 | ev_stop ((W)w); |
2386 | ev_stop (EV_A_ (W)w); |
1023 | |
2387 | |
1024 | if (!signals [w->signum - 1].head) |
2388 | if (!signals [w->signum - 1].head) |
1025 | signal (w->signum, SIG_DFL); |
2389 | signal (w->signum, SIG_DFL); |
1026 | } |
|
|
1027 | |
2390 | |
|
|
2391 | EV_FREQUENT_CHECK; |
|
|
2392 | } |
|
|
2393 | |
1028 | void |
2394 | void |
1029 | ev_idle_start (struct ev_idle *w) |
2395 | ev_child_start (EV_P_ ev_child *w) |
1030 | { |
2396 | { |
|
|
2397 | #if EV_MULTIPLICITY |
|
|
2398 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2399 | #endif |
1031 | if (ev_is_active (w)) |
2400 | if (expect_false (ev_is_active (w))) |
1032 | return; |
2401 | return; |
1033 | |
2402 | |
1034 | ev_start ((W)w, ++idlecnt); |
2403 | EV_FREQUENT_CHECK; |
1035 | array_needsize (idles, idlemax, idlecnt, ); |
|
|
1036 | idles [idlecnt - 1] = w; |
|
|
1037 | } |
|
|
1038 | |
2404 | |
|
|
2405 | ev_start (EV_A_ (W)w, 1); |
|
|
2406 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
2407 | |
|
|
2408 | EV_FREQUENT_CHECK; |
|
|
2409 | } |
|
|
2410 | |
1039 | void |
2411 | void |
1040 | ev_idle_stop (struct ev_idle *w) |
2412 | ev_child_stop (EV_P_ ev_child *w) |
1041 | { |
2413 | { |
1042 | ev_clear_pending ((W)w); |
2414 | clear_pending (EV_A_ (W)w); |
1043 | if (ev_is_active (w)) |
2415 | if (expect_false (!ev_is_active (w))) |
1044 | return; |
2416 | return; |
1045 | |
2417 | |
1046 | idles [w->active - 1] = idles [--idlecnt]; |
2418 | EV_FREQUENT_CHECK; |
|
|
2419 | |
|
|
2420 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1047 | ev_stop ((W)w); |
2421 | ev_stop (EV_A_ (W)w); |
1048 | } |
|
|
1049 | |
2422 | |
1050 | void |
2423 | EV_FREQUENT_CHECK; |
1051 | ev_prepare_start (struct ev_prepare *w) |
2424 | } |
|
|
2425 | |
|
|
2426 | #if EV_STAT_ENABLE |
|
|
2427 | |
|
|
2428 | # ifdef _WIN32 |
|
|
2429 | # undef lstat |
|
|
2430 | # define lstat(a,b) _stati64 (a,b) |
|
|
2431 | # endif |
|
|
2432 | |
|
|
2433 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2434 | #define MIN_STAT_INTERVAL 0.1074891 |
|
|
2435 | |
|
|
2436 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
|
|
2437 | |
|
|
2438 | #if EV_USE_INOTIFY |
|
|
2439 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
2440 | |
|
|
2441 | static void noinline |
|
|
2442 | infy_add (EV_P_ ev_stat *w) |
1052 | { |
2443 | { |
1053 | if (ev_is_active (w)) |
2444 | 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); |
|
|
2445 | |
|
|
2446 | if (w->wd < 0) |
|
|
2447 | { |
|
|
2448 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2449 | |
|
|
2450 | /* monitor some parent directory for speedup hints */ |
|
|
2451 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
|
|
2452 | /* but an efficiency issue only */ |
|
|
2453 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
|
|
2454 | { |
|
|
2455 | char path [4096]; |
|
|
2456 | strcpy (path, w->path); |
|
|
2457 | |
|
|
2458 | do |
|
|
2459 | { |
|
|
2460 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
|
|
2461 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
|
|
2462 | |
|
|
2463 | char *pend = strrchr (path, '/'); |
|
|
2464 | |
|
|
2465 | if (!pend) |
|
|
2466 | break; /* whoops, no '/', complain to your admin */ |
|
|
2467 | |
|
|
2468 | *pend = 0; |
|
|
2469 | w->wd = inotify_add_watch (fs_fd, path, mask); |
|
|
2470 | } |
|
|
2471 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
|
|
2472 | } |
|
|
2473 | } |
|
|
2474 | else |
|
|
2475 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2476 | |
|
|
2477 | if (w->wd >= 0) |
|
|
2478 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2479 | } |
|
|
2480 | |
|
|
2481 | static void noinline |
|
|
2482 | infy_del (EV_P_ ev_stat *w) |
|
|
2483 | { |
|
|
2484 | int slot; |
|
|
2485 | int wd = w->wd; |
|
|
2486 | |
|
|
2487 | if (wd < 0) |
1054 | return; |
2488 | return; |
1055 | |
2489 | |
|
|
2490 | w->wd = -2; |
|
|
2491 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
|
|
2492 | wlist_del (&fs_hash [slot].head, (WL)w); |
|
|
2493 | |
|
|
2494 | /* remove this watcher, if others are watching it, they will rearm */ |
|
|
2495 | inotify_rm_watch (fs_fd, wd); |
|
|
2496 | } |
|
|
2497 | |
|
|
2498 | static void noinline |
|
|
2499 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
|
|
2500 | { |
|
|
2501 | if (slot < 0) |
|
|
2502 | /* overflow, need to check for all hash slots */ |
|
|
2503 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2504 | infy_wd (EV_A_ slot, wd, ev); |
|
|
2505 | else |
|
|
2506 | { |
|
|
2507 | WL w_; |
|
|
2508 | |
|
|
2509 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
|
|
2510 | { |
|
|
2511 | ev_stat *w = (ev_stat *)w_; |
|
|
2512 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
|
|
2513 | |
|
|
2514 | if (w->wd == wd || wd == -1) |
|
|
2515 | { |
|
|
2516 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
|
|
2517 | { |
|
|
2518 | w->wd = -1; |
|
|
2519 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2520 | } |
|
|
2521 | |
|
|
2522 | stat_timer_cb (EV_A_ &w->timer, 0); |
|
|
2523 | } |
|
|
2524 | } |
|
|
2525 | } |
|
|
2526 | } |
|
|
2527 | |
|
|
2528 | static void |
|
|
2529 | infy_cb (EV_P_ ev_io *w, int revents) |
|
|
2530 | { |
|
|
2531 | char buf [EV_INOTIFY_BUFSIZE]; |
|
|
2532 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2533 | int ofs; |
|
|
2534 | int len = read (fs_fd, buf, sizeof (buf)); |
|
|
2535 | |
|
|
2536 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
|
|
2537 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
2538 | } |
|
|
2539 | |
|
|
2540 | void inline_size |
|
|
2541 | infy_init (EV_P) |
|
|
2542 | { |
|
|
2543 | if (fs_fd != -2) |
|
|
2544 | return; |
|
|
2545 | |
|
|
2546 | /* kernels < 2.6.25 are borked |
|
|
2547 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
2548 | */ |
|
|
2549 | { |
|
|
2550 | struct utsname buf; |
|
|
2551 | int major, minor, micro; |
|
|
2552 | |
|
|
2553 | fs_fd = -1; |
|
|
2554 | |
|
|
2555 | if (uname (&buf)) |
|
|
2556 | return; |
|
|
2557 | |
|
|
2558 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2559 | return; |
|
|
2560 | |
|
|
2561 | if (major < 2 |
|
|
2562 | || (major == 2 && minor < 6) |
|
|
2563 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2564 | return; |
|
|
2565 | } |
|
|
2566 | |
|
|
2567 | fs_fd = inotify_init (); |
|
|
2568 | |
|
|
2569 | if (fs_fd >= 0) |
|
|
2570 | { |
|
|
2571 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
|
|
2572 | ev_set_priority (&fs_w, EV_MAXPRI); |
|
|
2573 | ev_io_start (EV_A_ &fs_w); |
|
|
2574 | } |
|
|
2575 | } |
|
|
2576 | |
|
|
2577 | void inline_size |
|
|
2578 | infy_fork (EV_P) |
|
|
2579 | { |
|
|
2580 | int slot; |
|
|
2581 | |
|
|
2582 | if (fs_fd < 0) |
|
|
2583 | return; |
|
|
2584 | |
|
|
2585 | close (fs_fd); |
|
|
2586 | fs_fd = inotify_init (); |
|
|
2587 | |
|
|
2588 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2589 | { |
|
|
2590 | WL w_ = fs_hash [slot].head; |
|
|
2591 | fs_hash [slot].head = 0; |
|
|
2592 | |
|
|
2593 | while (w_) |
|
|
2594 | { |
|
|
2595 | ev_stat *w = (ev_stat *)w_; |
|
|
2596 | w_ = w_->next; /* lets us add this watcher */ |
|
|
2597 | |
|
|
2598 | w->wd = -1; |
|
|
2599 | |
|
|
2600 | if (fs_fd >= 0) |
|
|
2601 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2602 | else |
|
|
2603 | ev_timer_start (EV_A_ &w->timer); |
|
|
2604 | } |
|
|
2605 | } |
|
|
2606 | } |
|
|
2607 | |
|
|
2608 | #endif |
|
|
2609 | |
|
|
2610 | #ifdef _WIN32 |
|
|
2611 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
2612 | #else |
|
|
2613 | # define EV_LSTAT(p,b) lstat (p, b) |
|
|
2614 | #endif |
|
|
2615 | |
|
|
2616 | void |
|
|
2617 | ev_stat_stat (EV_P_ ev_stat *w) |
|
|
2618 | { |
|
|
2619 | if (lstat (w->path, &w->attr) < 0) |
|
|
2620 | w->attr.st_nlink = 0; |
|
|
2621 | else if (!w->attr.st_nlink) |
|
|
2622 | w->attr.st_nlink = 1; |
|
|
2623 | } |
|
|
2624 | |
|
|
2625 | static void noinline |
|
|
2626 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
2627 | { |
|
|
2628 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
2629 | |
|
|
2630 | /* we copy this here each the time so that */ |
|
|
2631 | /* prev has the old value when the callback gets invoked */ |
|
|
2632 | w->prev = w->attr; |
|
|
2633 | ev_stat_stat (EV_A_ w); |
|
|
2634 | |
|
|
2635 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
|
|
2636 | if ( |
|
|
2637 | w->prev.st_dev != w->attr.st_dev |
|
|
2638 | || w->prev.st_ino != w->attr.st_ino |
|
|
2639 | || w->prev.st_mode != w->attr.st_mode |
|
|
2640 | || w->prev.st_nlink != w->attr.st_nlink |
|
|
2641 | || w->prev.st_uid != w->attr.st_uid |
|
|
2642 | || w->prev.st_gid != w->attr.st_gid |
|
|
2643 | || w->prev.st_rdev != w->attr.st_rdev |
|
|
2644 | || w->prev.st_size != w->attr.st_size |
|
|
2645 | || w->prev.st_atime != w->attr.st_atime |
|
|
2646 | || w->prev.st_mtime != w->attr.st_mtime |
|
|
2647 | || w->prev.st_ctime != w->attr.st_ctime |
|
|
2648 | ) { |
|
|
2649 | #if EV_USE_INOTIFY |
|
|
2650 | if (fs_fd >= 0) |
|
|
2651 | { |
|
|
2652 | infy_del (EV_A_ w); |
|
|
2653 | infy_add (EV_A_ w); |
|
|
2654 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2655 | } |
|
|
2656 | #endif |
|
|
2657 | |
|
|
2658 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
2659 | } |
|
|
2660 | } |
|
|
2661 | |
|
|
2662 | void |
|
|
2663 | ev_stat_start (EV_P_ ev_stat *w) |
|
|
2664 | { |
|
|
2665 | if (expect_false (ev_is_active (w))) |
|
|
2666 | return; |
|
|
2667 | |
|
|
2668 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2669 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2670 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2671 | |
|
|
2672 | ev_stat_stat (EV_A_ w); |
|
|
2673 | |
|
|
2674 | if (w->interval < MIN_STAT_INTERVAL) |
|
|
2675 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2676 | |
|
|
2677 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
|
|
2678 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
2679 | |
|
|
2680 | #if EV_USE_INOTIFY |
|
|
2681 | infy_init (EV_A); |
|
|
2682 | |
|
|
2683 | if (fs_fd >= 0) |
|
|
2684 | infy_add (EV_A_ w); |
|
|
2685 | else |
|
|
2686 | #endif |
|
|
2687 | ev_timer_start (EV_A_ &w->timer); |
|
|
2688 | |
|
|
2689 | ev_start (EV_A_ (W)w, 1); |
|
|
2690 | |
|
|
2691 | EV_FREQUENT_CHECK; |
|
|
2692 | } |
|
|
2693 | |
|
|
2694 | void |
|
|
2695 | ev_stat_stop (EV_P_ ev_stat *w) |
|
|
2696 | { |
|
|
2697 | clear_pending (EV_A_ (W)w); |
|
|
2698 | if (expect_false (!ev_is_active (w))) |
|
|
2699 | return; |
|
|
2700 | |
|
|
2701 | EV_FREQUENT_CHECK; |
|
|
2702 | |
|
|
2703 | #if EV_USE_INOTIFY |
|
|
2704 | infy_del (EV_A_ w); |
|
|
2705 | #endif |
|
|
2706 | ev_timer_stop (EV_A_ &w->timer); |
|
|
2707 | |
|
|
2708 | ev_stop (EV_A_ (W)w); |
|
|
2709 | |
|
|
2710 | EV_FREQUENT_CHECK; |
|
|
2711 | } |
|
|
2712 | #endif |
|
|
2713 | |
|
|
2714 | #if EV_IDLE_ENABLE |
|
|
2715 | void |
|
|
2716 | ev_idle_start (EV_P_ ev_idle *w) |
|
|
2717 | { |
|
|
2718 | if (expect_false (ev_is_active (w))) |
|
|
2719 | return; |
|
|
2720 | |
|
|
2721 | pri_adjust (EV_A_ (W)w); |
|
|
2722 | |
|
|
2723 | EV_FREQUENT_CHECK; |
|
|
2724 | |
|
|
2725 | { |
|
|
2726 | int active = ++idlecnt [ABSPRI (w)]; |
|
|
2727 | |
|
|
2728 | ++idleall; |
|
|
2729 | ev_start (EV_A_ (W)w, active); |
|
|
2730 | |
|
|
2731 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
|
|
2732 | idles [ABSPRI (w)][active - 1] = w; |
|
|
2733 | } |
|
|
2734 | |
|
|
2735 | EV_FREQUENT_CHECK; |
|
|
2736 | } |
|
|
2737 | |
|
|
2738 | void |
|
|
2739 | ev_idle_stop (EV_P_ ev_idle *w) |
|
|
2740 | { |
|
|
2741 | clear_pending (EV_A_ (W)w); |
|
|
2742 | if (expect_false (!ev_is_active (w))) |
|
|
2743 | return; |
|
|
2744 | |
|
|
2745 | EV_FREQUENT_CHECK; |
|
|
2746 | |
|
|
2747 | { |
|
|
2748 | int active = ev_active (w); |
|
|
2749 | |
|
|
2750 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
|
|
2751 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
|
|
2752 | |
|
|
2753 | ev_stop (EV_A_ (W)w); |
|
|
2754 | --idleall; |
|
|
2755 | } |
|
|
2756 | |
|
|
2757 | EV_FREQUENT_CHECK; |
|
|
2758 | } |
|
|
2759 | #endif |
|
|
2760 | |
|
|
2761 | void |
|
|
2762 | ev_prepare_start (EV_P_ ev_prepare *w) |
|
|
2763 | { |
|
|
2764 | if (expect_false (ev_is_active (w))) |
|
|
2765 | return; |
|
|
2766 | |
|
|
2767 | EV_FREQUENT_CHECK; |
|
|
2768 | |
1056 | ev_start ((W)w, ++preparecnt); |
2769 | ev_start (EV_A_ (W)w, ++preparecnt); |
1057 | array_needsize (prepares, preparemax, preparecnt, ); |
2770 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
1058 | prepares [preparecnt - 1] = w; |
2771 | prepares [preparecnt - 1] = w; |
1059 | } |
|
|
1060 | |
2772 | |
|
|
2773 | EV_FREQUENT_CHECK; |
|
|
2774 | } |
|
|
2775 | |
1061 | void |
2776 | void |
1062 | ev_prepare_stop (struct ev_prepare *w) |
2777 | ev_prepare_stop (EV_P_ ev_prepare *w) |
1063 | { |
2778 | { |
1064 | ev_clear_pending ((W)w); |
2779 | clear_pending (EV_A_ (W)w); |
1065 | if (ev_is_active (w)) |
2780 | if (expect_false (!ev_is_active (w))) |
1066 | return; |
2781 | return; |
1067 | |
2782 | |
|
|
2783 | EV_FREQUENT_CHECK; |
|
|
2784 | |
|
|
2785 | { |
|
|
2786 | int active = ev_active (w); |
|
|
2787 | |
1068 | prepares [w->active - 1] = prepares [--preparecnt]; |
2788 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
2789 | ev_active (prepares [active - 1]) = active; |
|
|
2790 | } |
|
|
2791 | |
1069 | ev_stop ((W)w); |
2792 | ev_stop (EV_A_ (W)w); |
1070 | } |
|
|
1071 | |
2793 | |
|
|
2794 | EV_FREQUENT_CHECK; |
|
|
2795 | } |
|
|
2796 | |
1072 | void |
2797 | void |
1073 | ev_check_start (struct ev_check *w) |
2798 | ev_check_start (EV_P_ ev_check *w) |
1074 | { |
2799 | { |
1075 | if (ev_is_active (w)) |
2800 | if (expect_false (ev_is_active (w))) |
1076 | return; |
2801 | return; |
1077 | |
2802 | |
|
|
2803 | EV_FREQUENT_CHECK; |
|
|
2804 | |
1078 | ev_start ((W)w, ++checkcnt); |
2805 | ev_start (EV_A_ (W)w, ++checkcnt); |
1079 | array_needsize (checks, checkmax, checkcnt, ); |
2806 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
1080 | checks [checkcnt - 1] = w; |
2807 | checks [checkcnt - 1] = w; |
1081 | } |
|
|
1082 | |
2808 | |
|
|
2809 | EV_FREQUENT_CHECK; |
|
|
2810 | } |
|
|
2811 | |
1083 | void |
2812 | void |
1084 | ev_check_stop (struct ev_check *w) |
2813 | ev_check_stop (EV_P_ ev_check *w) |
1085 | { |
2814 | { |
1086 | ev_clear_pending ((W)w); |
2815 | clear_pending (EV_A_ (W)w); |
1087 | if (ev_is_active (w)) |
2816 | if (expect_false (!ev_is_active (w))) |
1088 | return; |
2817 | return; |
1089 | |
2818 | |
|
|
2819 | EV_FREQUENT_CHECK; |
|
|
2820 | |
|
|
2821 | { |
|
|
2822 | int active = ev_active (w); |
|
|
2823 | |
1090 | checks [w->active - 1] = checks [--checkcnt]; |
2824 | checks [active - 1] = checks [--checkcnt]; |
|
|
2825 | ev_active (checks [active - 1]) = active; |
|
|
2826 | } |
|
|
2827 | |
1091 | ev_stop ((W)w); |
2828 | ev_stop (EV_A_ (W)w); |
1092 | } |
|
|
1093 | |
2829 | |
1094 | void |
2830 | EV_FREQUENT_CHECK; |
1095 | ev_child_start (struct ev_child *w) |
2831 | } |
|
|
2832 | |
|
|
2833 | #if EV_EMBED_ENABLE |
|
|
2834 | void noinline |
|
|
2835 | ev_embed_sweep (EV_P_ ev_embed *w) |
1096 | { |
2836 | { |
|
|
2837 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2838 | } |
|
|
2839 | |
|
|
2840 | static void |
|
|
2841 | embed_io_cb (EV_P_ ev_io *io, int revents) |
|
|
2842 | { |
|
|
2843 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
|
|
2844 | |
1097 | if (ev_is_active (w)) |
2845 | if (ev_cb (w)) |
|
|
2846 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
|
|
2847 | else |
|
|
2848 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2849 | } |
|
|
2850 | |
|
|
2851 | static void |
|
|
2852 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
2853 | { |
|
|
2854 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
2855 | |
|
|
2856 | { |
|
|
2857 | struct ev_loop *loop = w->other; |
|
|
2858 | |
|
|
2859 | while (fdchangecnt) |
|
|
2860 | { |
|
|
2861 | fd_reify (EV_A); |
|
|
2862 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2863 | } |
|
|
2864 | } |
|
|
2865 | } |
|
|
2866 | |
|
|
2867 | static void |
|
|
2868 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
2869 | { |
|
|
2870 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
2871 | |
|
|
2872 | { |
|
|
2873 | struct ev_loop *loop = w->other; |
|
|
2874 | |
|
|
2875 | ev_loop_fork (EV_A); |
|
|
2876 | } |
|
|
2877 | } |
|
|
2878 | |
|
|
2879 | #if 0 |
|
|
2880 | static void |
|
|
2881 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
2882 | { |
|
|
2883 | ev_idle_stop (EV_A_ idle); |
|
|
2884 | } |
|
|
2885 | #endif |
|
|
2886 | |
|
|
2887 | void |
|
|
2888 | ev_embed_start (EV_P_ ev_embed *w) |
|
|
2889 | { |
|
|
2890 | if (expect_false (ev_is_active (w))) |
1098 | return; |
2891 | return; |
1099 | |
2892 | |
|
|
2893 | { |
|
|
2894 | struct ev_loop *loop = w->other; |
|
|
2895 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
|
|
2896 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
|
|
2897 | } |
|
|
2898 | |
|
|
2899 | EV_FREQUENT_CHECK; |
|
|
2900 | |
|
|
2901 | ev_set_priority (&w->io, ev_priority (w)); |
|
|
2902 | ev_io_start (EV_A_ &w->io); |
|
|
2903 | |
|
|
2904 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
2905 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
2906 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
2907 | |
|
|
2908 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
2909 | ev_fork_start (EV_A_ &w->fork); |
|
|
2910 | |
|
|
2911 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
2912 | |
1100 | ev_start ((W)w, 1); |
2913 | ev_start (EV_A_ (W)w, 1); |
1101 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
|
|
1102 | } |
|
|
1103 | |
2914 | |
|
|
2915 | EV_FREQUENT_CHECK; |
|
|
2916 | } |
|
|
2917 | |
1104 | void |
2918 | void |
1105 | ev_child_stop (struct ev_child *w) |
2919 | ev_embed_stop (EV_P_ ev_embed *w) |
1106 | { |
2920 | { |
1107 | ev_clear_pending ((W)w); |
2921 | clear_pending (EV_A_ (W)w); |
1108 | if (ev_is_active (w)) |
2922 | if (expect_false (!ev_is_active (w))) |
1109 | return; |
2923 | return; |
1110 | |
2924 | |
1111 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
2925 | EV_FREQUENT_CHECK; |
|
|
2926 | |
|
|
2927 | ev_io_stop (EV_A_ &w->io); |
|
|
2928 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
2929 | ev_fork_stop (EV_A_ &w->fork); |
|
|
2930 | |
|
|
2931 | EV_FREQUENT_CHECK; |
|
|
2932 | } |
|
|
2933 | #endif |
|
|
2934 | |
|
|
2935 | #if EV_FORK_ENABLE |
|
|
2936 | void |
|
|
2937 | ev_fork_start (EV_P_ ev_fork *w) |
|
|
2938 | { |
|
|
2939 | if (expect_false (ev_is_active (w))) |
|
|
2940 | return; |
|
|
2941 | |
|
|
2942 | EV_FREQUENT_CHECK; |
|
|
2943 | |
|
|
2944 | ev_start (EV_A_ (W)w, ++forkcnt); |
|
|
2945 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
|
|
2946 | forks [forkcnt - 1] = w; |
|
|
2947 | |
|
|
2948 | EV_FREQUENT_CHECK; |
|
|
2949 | } |
|
|
2950 | |
|
|
2951 | void |
|
|
2952 | ev_fork_stop (EV_P_ ev_fork *w) |
|
|
2953 | { |
|
|
2954 | clear_pending (EV_A_ (W)w); |
|
|
2955 | if (expect_false (!ev_is_active (w))) |
|
|
2956 | return; |
|
|
2957 | |
|
|
2958 | EV_FREQUENT_CHECK; |
|
|
2959 | |
|
|
2960 | { |
|
|
2961 | int active = ev_active (w); |
|
|
2962 | |
|
|
2963 | forks [active - 1] = forks [--forkcnt]; |
|
|
2964 | ev_active (forks [active - 1]) = active; |
|
|
2965 | } |
|
|
2966 | |
1112 | ev_stop ((W)w); |
2967 | ev_stop (EV_A_ (W)w); |
|
|
2968 | |
|
|
2969 | EV_FREQUENT_CHECK; |
1113 | } |
2970 | } |
|
|
2971 | #endif |
|
|
2972 | |
|
|
2973 | #if EV_ASYNC_ENABLE |
|
|
2974 | void |
|
|
2975 | ev_async_start (EV_P_ ev_async *w) |
|
|
2976 | { |
|
|
2977 | if (expect_false (ev_is_active (w))) |
|
|
2978 | return; |
|
|
2979 | |
|
|
2980 | evpipe_init (EV_A); |
|
|
2981 | |
|
|
2982 | EV_FREQUENT_CHECK; |
|
|
2983 | |
|
|
2984 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
2985 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
2986 | asyncs [asynccnt - 1] = w; |
|
|
2987 | |
|
|
2988 | EV_FREQUENT_CHECK; |
|
|
2989 | } |
|
|
2990 | |
|
|
2991 | void |
|
|
2992 | ev_async_stop (EV_P_ ev_async *w) |
|
|
2993 | { |
|
|
2994 | clear_pending (EV_A_ (W)w); |
|
|
2995 | if (expect_false (!ev_is_active (w))) |
|
|
2996 | return; |
|
|
2997 | |
|
|
2998 | EV_FREQUENT_CHECK; |
|
|
2999 | |
|
|
3000 | { |
|
|
3001 | int active = ev_active (w); |
|
|
3002 | |
|
|
3003 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
3004 | ev_active (asyncs [active - 1]) = active; |
|
|
3005 | } |
|
|
3006 | |
|
|
3007 | ev_stop (EV_A_ (W)w); |
|
|
3008 | |
|
|
3009 | EV_FREQUENT_CHECK; |
|
|
3010 | } |
|
|
3011 | |
|
|
3012 | void |
|
|
3013 | ev_async_send (EV_P_ ev_async *w) |
|
|
3014 | { |
|
|
3015 | w->sent = 1; |
|
|
3016 | evpipe_write (EV_A_ &gotasync); |
|
|
3017 | } |
|
|
3018 | #endif |
1114 | |
3019 | |
1115 | /*****************************************************************************/ |
3020 | /*****************************************************************************/ |
1116 | |
3021 | |
1117 | struct ev_once |
3022 | struct ev_once |
1118 | { |
3023 | { |
1119 | struct ev_io io; |
3024 | ev_io io; |
1120 | struct ev_timer to; |
3025 | ev_timer to; |
1121 | void (*cb)(int revents, void *arg); |
3026 | void (*cb)(int revents, void *arg); |
1122 | void *arg; |
3027 | void *arg; |
1123 | }; |
3028 | }; |
1124 | |
3029 | |
1125 | static void |
3030 | static void |
1126 | once_cb (struct ev_once *once, int revents) |
3031 | once_cb (EV_P_ struct ev_once *once, int revents) |
1127 | { |
3032 | { |
1128 | void (*cb)(int revents, void *arg) = once->cb; |
3033 | void (*cb)(int revents, void *arg) = once->cb; |
1129 | void *arg = once->arg; |
3034 | void *arg = once->arg; |
1130 | |
3035 | |
1131 | ev_io_stop (&once->io); |
3036 | ev_io_stop (EV_A_ &once->io); |
1132 | ev_timer_stop (&once->to); |
3037 | ev_timer_stop (EV_A_ &once->to); |
1133 | free (once); |
3038 | ev_free (once); |
1134 | |
3039 | |
1135 | cb (revents, arg); |
3040 | cb (revents, arg); |
1136 | } |
3041 | } |
1137 | |
3042 | |
1138 | static void |
3043 | static void |
1139 | once_cb_io (struct ev_io *w, int revents) |
3044 | once_cb_io (EV_P_ ev_io *w, int revents) |
1140 | { |
3045 | { |
1141 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3046 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3047 | |
|
|
3048 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
1142 | } |
3049 | } |
1143 | |
3050 | |
1144 | static void |
3051 | static void |
1145 | once_cb_to (struct ev_timer *w, int revents) |
3052 | once_cb_to (EV_P_ ev_timer *w, int revents) |
1146 | { |
3053 | { |
1147 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3054 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
1148 | } |
|
|
1149 | |
3055 | |
|
|
3056 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
|
|
3057 | } |
|
|
3058 | |
1150 | void |
3059 | void |
1151 | ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3060 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1152 | { |
3061 | { |
1153 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
3062 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1154 | |
3063 | |
1155 | if (!once) |
3064 | if (expect_false (!once)) |
|
|
3065 | { |
1156 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
3066 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1157 | else |
3067 | return; |
1158 | { |
3068 | } |
|
|
3069 | |
1159 | once->cb = cb; |
3070 | once->cb = cb; |
1160 | once->arg = arg; |
3071 | once->arg = arg; |
1161 | |
3072 | |
1162 | ev_watcher_init (&once->io, once_cb_io); |
3073 | ev_init (&once->io, once_cb_io); |
1163 | if (fd >= 0) |
3074 | if (fd >= 0) |
1164 | { |
3075 | { |
1165 | ev_io_set (&once->io, fd, events); |
3076 | ev_io_set (&once->io, fd, events); |
1166 | ev_io_start (&once->io); |
3077 | ev_io_start (EV_A_ &once->io); |
1167 | } |
3078 | } |
1168 | |
3079 | |
1169 | ev_watcher_init (&once->to, once_cb_to); |
3080 | ev_init (&once->to, once_cb_to); |
1170 | if (timeout >= 0.) |
3081 | if (timeout >= 0.) |
1171 | { |
3082 | { |
1172 | ev_timer_set (&once->to, timeout, 0.); |
3083 | ev_timer_set (&once->to, timeout, 0.); |
1173 | ev_timer_start (&once->to); |
3084 | ev_timer_start (EV_A_ &once->to); |
1174 | } |
|
|
1175 | } |
|
|
1176 | } |
|
|
1177 | |
|
|
1178 | /*****************************************************************************/ |
|
|
1179 | |
|
|
1180 | #if 0 |
|
|
1181 | |
|
|
1182 | struct ev_io wio; |
|
|
1183 | |
|
|
1184 | static void |
|
|
1185 | sin_cb (struct ev_io *w, int revents) |
|
|
1186 | { |
|
|
1187 | fprintf (stderr, "sin %d, revents %d\n", w->fd, revents); |
|
|
1188 | } |
|
|
1189 | |
|
|
1190 | static void |
|
|
1191 | ocb (struct ev_timer *w, int revents) |
|
|
1192 | { |
|
|
1193 | //fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data); |
|
|
1194 | ev_timer_stop (w); |
|
|
1195 | ev_timer_start (w); |
|
|
1196 | } |
|
|
1197 | |
|
|
1198 | static void |
|
|
1199 | scb (struct ev_signal *w, int revents) |
|
|
1200 | { |
|
|
1201 | fprintf (stderr, "signal %x,%d\n", revents, w->signum); |
|
|
1202 | ev_io_stop (&wio); |
|
|
1203 | ev_io_start (&wio); |
|
|
1204 | } |
|
|
1205 | |
|
|
1206 | static void |
|
|
1207 | gcb (struct ev_signal *w, int revents) |
|
|
1208 | { |
|
|
1209 | fprintf (stderr, "generic %x\n", revents); |
|
|
1210 | |
|
|
1211 | } |
|
|
1212 | |
|
|
1213 | int main (void) |
|
|
1214 | { |
|
|
1215 | ev_init (0); |
|
|
1216 | |
|
|
1217 | ev_io_init (&wio, sin_cb, 0, EV_READ); |
|
|
1218 | ev_io_start (&wio); |
|
|
1219 | |
|
|
1220 | struct ev_timer t[10000]; |
|
|
1221 | |
|
|
1222 | #if 0 |
|
|
1223 | int i; |
|
|
1224 | for (i = 0; i < 10000; ++i) |
|
|
1225 | { |
3085 | } |
1226 | struct ev_timer *w = t + i; |
|
|
1227 | ev_watcher_init (w, ocb, i); |
|
|
1228 | ev_timer_init_abs (w, ocb, drand48 (), 0.99775533); |
|
|
1229 | ev_timer_start (w); |
|
|
1230 | if (drand48 () < 0.5) |
|
|
1231 | ev_timer_stop (w); |
|
|
1232 | } |
|
|
1233 | #endif |
|
|
1234 | |
|
|
1235 | struct ev_timer t1; |
|
|
1236 | ev_timer_init (&t1, ocb, 5, 10); |
|
|
1237 | ev_timer_start (&t1); |
|
|
1238 | |
|
|
1239 | struct ev_signal sig; |
|
|
1240 | ev_signal_init (&sig, scb, SIGQUIT); |
|
|
1241 | ev_signal_start (&sig); |
|
|
1242 | |
|
|
1243 | struct ev_check cw; |
|
|
1244 | ev_check_init (&cw, gcb); |
|
|
1245 | ev_check_start (&cw); |
|
|
1246 | |
|
|
1247 | struct ev_idle iw; |
|
|
1248 | ev_idle_init (&iw, gcb); |
|
|
1249 | ev_idle_start (&iw); |
|
|
1250 | |
|
|
1251 | ev_loop (0); |
|
|
1252 | |
|
|
1253 | return 0; |
|
|
1254 | } |
3086 | } |
1255 | |
3087 | |
|
|
3088 | #if EV_MULTIPLICITY |
|
|
3089 | #include "ev_wrap.h" |
1256 | #endif |
3090 | #endif |
1257 | |
3091 | |
|
|
3092 | #ifdef __cplusplus |
|
|
3093 | } |
|
|
3094 | #endif |
1258 | |
3095 | |
1259 | |
|
|
1260 | |
|
|