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 */ |
31 | #ifndef EV_STANDALONE |
45 | #ifndef EV_STANDALONE |
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46 | # ifdef EV_CONFIG_H |
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47 | # include EV_CONFIG_H |
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48 | # else |
32 | # include "config.h" |
49 | # include "config.h" |
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50 | # endif |
33 | |
51 | |
34 | # if HAVE_CLOCK_GETTIME |
52 | # if HAVE_CLOCK_GETTIME |
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53 | # ifndef EV_USE_MONOTONIC |
35 | # define EV_USE_MONOTONIC 1 |
54 | # define EV_USE_MONOTONIC 1 |
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55 | # endif |
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56 | # ifndef EV_USE_REALTIME |
36 | # define EV_USE_REALTIME 1 |
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 |
37 | # endif |
66 | # endif |
38 | |
67 | |
39 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
68 | # ifndef EV_USE_NANOSLEEP |
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69 | # if HAVE_NANOSLEEP |
40 | # define EV_USE_SELECT 1 |
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 |
41 | # endif |
74 | # endif |
42 | |
75 | |
43 | # if HAVE_POLL && HAVE_POLL_H |
76 | # ifndef EV_USE_SELECT |
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77 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
44 | # define EV_USE_POLL 1 |
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 |
45 | # endif |
82 | # endif |
46 | |
83 | |
47 | # if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
84 | # ifndef EV_USE_POLL |
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85 | # if HAVE_POLL && HAVE_POLL_H |
48 | # define EV_USE_EPOLL 1 |
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 |
49 | # endif |
90 | # endif |
50 | |
91 | |
51 | # if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
92 | # ifndef EV_USE_EPOLL |
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93 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
52 | # define EV_USE_KQUEUE 1 |
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 |
53 | # endif |
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 |
54 | |
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 | |
55 | #endif |
132 | #endif |
56 | |
133 | |
57 | #include <math.h> |
134 | #include <math.h> |
58 | #include <stdlib.h> |
135 | #include <stdlib.h> |
59 | #include <unistd.h> |
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60 | #include <fcntl.h> |
136 | #include <fcntl.h> |
61 | #include <signal.h> |
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62 | #include <stddef.h> |
137 | #include <stddef.h> |
63 | |
138 | |
64 | #include <stdio.h> |
139 | #include <stdio.h> |
65 | |
140 | |
66 | #include <assert.h> |
141 | #include <assert.h> |
67 | #include <errno.h> |
142 | #include <errno.h> |
68 | #include <sys/types.h> |
143 | #include <sys/types.h> |
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144 | #include <time.h> |
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145 | |
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146 | #include <signal.h> |
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147 | |
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148 | #ifdef EV_H |
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149 | # include EV_H |
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150 | #else |
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151 | # include "ev.h" |
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152 | #endif |
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153 | |
69 | #ifndef WIN32 |
154 | #ifndef _WIN32 |
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155 | # include <sys/time.h> |
70 | # include <sys/wait.h> |
156 | # include <sys/wait.h> |
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157 | # include <unistd.h> |
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158 | #else |
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159 | # define WIN32_LEAN_AND_MEAN |
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160 | # include <windows.h> |
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161 | # ifndef EV_SELECT_IS_WINSOCKET |
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162 | # define EV_SELECT_IS_WINSOCKET 1 |
71 | #endif |
163 | # endif |
72 | #include <sys/time.h> |
164 | #endif |
73 | #include <time.h> |
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74 | |
165 | |
75 | /**/ |
166 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
76 | |
167 | |
77 | #ifndef EV_USE_MONOTONIC |
168 | #ifndef EV_USE_MONOTONIC |
78 | # define EV_USE_MONOTONIC 1 |
169 | # define EV_USE_MONOTONIC 0 |
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170 | #endif |
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171 | |
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172 | #ifndef EV_USE_REALTIME |
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173 | # define EV_USE_REALTIME 0 |
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174 | #endif |
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175 | |
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176 | #ifndef EV_USE_NANOSLEEP |
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177 | # define EV_USE_NANOSLEEP 0 |
79 | #endif |
178 | #endif |
80 | |
179 | |
81 | #ifndef EV_USE_SELECT |
180 | #ifndef EV_USE_SELECT |
82 | # define EV_USE_SELECT 1 |
181 | # define EV_USE_SELECT 1 |
83 | #endif |
182 | #endif |
84 | |
183 | |
85 | #ifndef EV_USE_POLL |
184 | #ifndef EV_USE_POLL |
86 | # define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */ |
185 | # ifdef _WIN32 |
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186 | # define EV_USE_POLL 0 |
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187 | # else |
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188 | # define EV_USE_POLL 1 |
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189 | # endif |
87 | #endif |
190 | #endif |
88 | |
191 | |
89 | #ifndef EV_USE_EPOLL |
192 | #ifndef EV_USE_EPOLL |
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193 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
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194 | # define EV_USE_EPOLL 1 |
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195 | # else |
90 | # define EV_USE_EPOLL 0 |
196 | # define EV_USE_EPOLL 0 |
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197 | # endif |
91 | #endif |
198 | #endif |
92 | |
199 | |
93 | #ifndef EV_USE_KQUEUE |
200 | #ifndef EV_USE_KQUEUE |
94 | # define EV_USE_KQUEUE 0 |
201 | # define EV_USE_KQUEUE 0 |
95 | #endif |
202 | #endif |
96 | |
203 | |
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204 | #ifndef EV_USE_PORT |
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205 | # define EV_USE_PORT 0 |
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206 | #endif |
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207 | |
97 | #ifndef EV_USE_WIN32 |
208 | #ifndef EV_USE_INOTIFY |
98 | # ifdef WIN32 |
209 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
99 | # define EV_USE_WIN32 1 |
210 | # define EV_USE_INOTIFY 1 |
100 | # else |
211 | # else |
101 | # define EV_USE_WIN32 0 |
212 | # define EV_USE_INOTIFY 0 |
102 | # endif |
213 | # endif |
103 | #endif |
214 | #endif |
104 | |
215 | |
105 | #ifndef EV_USE_REALTIME |
216 | #ifndef EV_PID_HASHSIZE |
106 | # define EV_USE_REALTIME 1 |
217 | # if EV_MINIMAL |
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218 | # define EV_PID_HASHSIZE 1 |
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219 | # else |
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220 | # define EV_PID_HASHSIZE 16 |
107 | #endif |
221 | # endif |
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222 | #endif |
108 | |
223 | |
109 | /**/ |
224 | #ifndef EV_INOTIFY_HASHSIZE |
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225 | # if EV_MINIMAL |
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226 | # define EV_INOTIFY_HASHSIZE 1 |
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227 | # else |
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228 | # define EV_INOTIFY_HASHSIZE 16 |
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229 | # endif |
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230 | #endif |
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231 | |
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232 | #ifndef EV_USE_EVENTFD |
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233 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
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234 | # define EV_USE_EVENTFD 1 |
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235 | # else |
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236 | # define EV_USE_EVENTFD 0 |
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237 | # endif |
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238 | #endif |
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239 | |
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240 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
110 | |
241 | |
111 | #ifndef CLOCK_MONOTONIC |
242 | #ifndef CLOCK_MONOTONIC |
112 | # undef EV_USE_MONOTONIC |
243 | # undef EV_USE_MONOTONIC |
113 | # define EV_USE_MONOTONIC 0 |
244 | # define EV_USE_MONOTONIC 0 |
114 | #endif |
245 | #endif |
… | |
… | |
116 | #ifndef CLOCK_REALTIME |
247 | #ifndef CLOCK_REALTIME |
117 | # undef EV_USE_REALTIME |
248 | # undef EV_USE_REALTIME |
118 | # define EV_USE_REALTIME 0 |
249 | # define EV_USE_REALTIME 0 |
119 | #endif |
250 | #endif |
120 | |
251 | |
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252 | #if !EV_STAT_ENABLE |
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253 | # undef EV_USE_INOTIFY |
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254 | # define EV_USE_INOTIFY 0 |
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255 | #endif |
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256 | |
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257 | #if !EV_USE_NANOSLEEP |
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258 | # ifndef _WIN32 |
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259 | # include <sys/select.h> |
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260 | # endif |
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261 | #endif |
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262 | |
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263 | #if EV_USE_INOTIFY |
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264 | # include <sys/inotify.h> |
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265 | #endif |
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266 | |
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267 | #if EV_SELECT_IS_WINSOCKET |
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268 | # include <winsock.h> |
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269 | #endif |
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270 | |
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271 | #if EV_USE_EVENTFD |
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272 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
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273 | # include <stdint.h> |
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274 | int eventfd (unsigned int initval, int flags); |
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275 | #endif |
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276 | |
121 | /**/ |
277 | /**/ |
122 | |
278 | |
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279 | /* |
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280 | * This is used to avoid floating point rounding problems. |
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281 | * It is added to ev_rt_now when scheduling periodics |
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282 | * to ensure progress, time-wise, even when rounding |
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283 | * errors are against us. |
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284 | * This value is good at least till the year 4000. |
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285 | * Better solutions welcome. |
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286 | */ |
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287 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
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288 | |
123 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
289 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
124 | #define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */ |
290 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
125 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
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126 | /*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ |
291 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
127 | |
292 | |
128 | #include "ev.h" |
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129 | |
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130 | #if __GNUC__ >= 3 |
293 | #if __GNUC__ >= 4 |
131 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
294 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
132 | # define inline inline |
295 | # define noinline __attribute__ ((noinline)) |
133 | #else |
296 | #else |
134 | # define expect(expr,value) (expr) |
297 | # define expect(expr,value) (expr) |
135 | # define inline static |
298 | # define noinline |
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299 | # if __STDC_VERSION__ < 199901L |
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300 | # define inline |
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301 | # endif |
136 | #endif |
302 | #endif |
137 | |
303 | |
138 | #define expect_false(expr) expect ((expr) != 0, 0) |
304 | #define expect_false(expr) expect ((expr) != 0, 0) |
139 | #define expect_true(expr) expect ((expr) != 0, 1) |
305 | #define expect_true(expr) expect ((expr) != 0, 1) |
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306 | #define inline_size static inline |
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307 | |
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308 | #if EV_MINIMAL |
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309 | # define inline_speed static noinline |
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310 | #else |
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311 | # define inline_speed static inline |
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312 | #endif |
140 | |
313 | |
141 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
314 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
142 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
315 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
143 | |
316 | |
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317 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
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318 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
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319 | |
144 | typedef struct ev_watcher *W; |
320 | typedef ev_watcher *W; |
145 | typedef struct ev_watcher_list *WL; |
321 | typedef ev_watcher_list *WL; |
146 | typedef struct ev_watcher_time *WT; |
322 | typedef ev_watcher_time *WT; |
147 | |
323 | |
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324 | #if EV_USE_MONOTONIC |
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325 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
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326 | /* giving it a reasonably high chance of working on typical architetcures */ |
148 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
327 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
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328 | #endif |
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329 | |
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330 | #ifdef _WIN32 |
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331 | # include "ev_win32.c" |
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332 | #endif |
149 | |
333 | |
150 | /*****************************************************************************/ |
334 | /*****************************************************************************/ |
151 | |
335 | |
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336 | static void (*syserr_cb)(const char *msg); |
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337 | |
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338 | void |
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339 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
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340 | { |
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341 | syserr_cb = cb; |
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342 | } |
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343 | |
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344 | static void noinline |
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345 | syserr (const char *msg) |
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346 | { |
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347 | if (!msg) |
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348 | msg = "(libev) system error"; |
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349 | |
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350 | if (syserr_cb) |
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351 | syserr_cb (msg); |
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352 | else |
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353 | { |
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354 | perror (msg); |
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355 | abort (); |
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356 | } |
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357 | } |
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358 | |
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359 | static void *(*alloc)(void *ptr, long size); |
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360 | |
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361 | void |
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362 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
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363 | { |
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364 | alloc = cb; |
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365 | } |
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366 | |
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367 | inline_speed void * |
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368 | ev_realloc (void *ptr, long size) |
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369 | { |
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370 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
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371 | |
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372 | if (!ptr && size) |
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373 | { |
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374 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
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375 | abort (); |
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376 | } |
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377 | |
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378 | return ptr; |
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379 | } |
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380 | |
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381 | #define ev_malloc(size) ev_realloc (0, (size)) |
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382 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
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383 | |
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384 | /*****************************************************************************/ |
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385 | |
152 | typedef struct |
386 | typedef struct |
153 | { |
387 | { |
154 | struct ev_watcher_list *head; |
388 | WL head; |
155 | unsigned char events; |
389 | unsigned char events; |
156 | unsigned char reify; |
390 | unsigned char reify; |
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391 | #if EV_SELECT_IS_WINSOCKET |
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392 | SOCKET handle; |
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393 | #endif |
157 | } ANFD; |
394 | } ANFD; |
158 | |
395 | |
159 | typedef struct |
396 | typedef struct |
160 | { |
397 | { |
161 | W w; |
398 | W w; |
162 | int events; |
399 | int events; |
163 | } ANPENDING; |
400 | } ANPENDING; |
164 | |
401 | |
|
|
402 | #if EV_USE_INOTIFY |
|
|
403 | typedef struct |
|
|
404 | { |
|
|
405 | WL head; |
|
|
406 | } ANFS; |
|
|
407 | #endif |
|
|
408 | |
165 | #if EV_MULTIPLICITY |
409 | #if EV_MULTIPLICITY |
166 | |
410 | |
167 | struct ev_loop |
411 | struct ev_loop |
168 | { |
412 | { |
|
|
413 | ev_tstamp ev_rt_now; |
|
|
414 | #define ev_rt_now ((loop)->ev_rt_now) |
169 | # define VAR(name,decl) decl; |
415 | #define VAR(name,decl) decl; |
170 | # include "ev_vars.h" |
416 | #include "ev_vars.h" |
171 | }; |
|
|
172 | # undef VAR |
417 | #undef VAR |
|
|
418 | }; |
173 | # include "ev_wrap.h" |
419 | #include "ev_wrap.h" |
|
|
420 | |
|
|
421 | static struct ev_loop default_loop_struct; |
|
|
422 | struct ev_loop *ev_default_loop_ptr; |
174 | |
423 | |
175 | #else |
424 | #else |
176 | |
425 | |
|
|
426 | ev_tstamp ev_rt_now; |
177 | # define VAR(name,decl) static decl; |
427 | #define VAR(name,decl) static decl; |
178 | # include "ev_vars.h" |
428 | #include "ev_vars.h" |
179 | # undef VAR |
429 | #undef VAR |
|
|
430 | |
|
|
431 | static int ev_default_loop_ptr; |
180 | |
432 | |
181 | #endif |
433 | #endif |
182 | |
434 | |
183 | /*****************************************************************************/ |
435 | /*****************************************************************************/ |
184 | |
436 | |
185 | inline ev_tstamp |
437 | ev_tstamp |
186 | ev_time (void) |
438 | ev_time (void) |
187 | { |
439 | { |
188 | #if EV_USE_REALTIME |
440 | #if EV_USE_REALTIME |
189 | struct timespec ts; |
441 | struct timespec ts; |
190 | clock_gettime (CLOCK_REALTIME, &ts); |
442 | clock_gettime (CLOCK_REALTIME, &ts); |
… | |
… | |
194 | gettimeofday (&tv, 0); |
446 | gettimeofday (&tv, 0); |
195 | return tv.tv_sec + tv.tv_usec * 1e-6; |
447 | return tv.tv_sec + tv.tv_usec * 1e-6; |
196 | #endif |
448 | #endif |
197 | } |
449 | } |
198 | |
450 | |
199 | inline ev_tstamp |
451 | ev_tstamp inline_size |
200 | get_clock (void) |
452 | get_clock (void) |
201 | { |
453 | { |
202 | #if EV_USE_MONOTONIC |
454 | #if EV_USE_MONOTONIC |
203 | if (expect_true (have_monotonic)) |
455 | if (expect_true (have_monotonic)) |
204 | { |
456 | { |
… | |
… | |
209 | #endif |
461 | #endif |
210 | |
462 | |
211 | return ev_time (); |
463 | return ev_time (); |
212 | } |
464 | } |
213 | |
465 | |
|
|
466 | #if EV_MULTIPLICITY |
214 | ev_tstamp |
467 | ev_tstamp |
215 | ev_now (EV_P) |
468 | ev_now (EV_P) |
216 | { |
469 | { |
217 | return rt_now; |
470 | return ev_rt_now; |
218 | } |
471 | } |
|
|
472 | #endif |
219 | |
473 | |
220 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
474 | void |
|
|
475 | ev_sleep (ev_tstamp delay) |
|
|
476 | { |
|
|
477 | if (delay > 0.) |
|
|
478 | { |
|
|
479 | #if EV_USE_NANOSLEEP |
|
|
480 | struct timespec ts; |
221 | |
481 | |
|
|
482 | ts.tv_sec = (time_t)delay; |
|
|
483 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
484 | |
|
|
485 | nanosleep (&ts, 0); |
|
|
486 | #elif defined(_WIN32) |
|
|
487 | Sleep ((unsigned long)(delay * 1e3)); |
|
|
488 | #else |
|
|
489 | struct timeval tv; |
|
|
490 | |
|
|
491 | tv.tv_sec = (time_t)delay; |
|
|
492 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
493 | |
|
|
494 | select (0, 0, 0, 0, &tv); |
|
|
495 | #endif |
|
|
496 | } |
|
|
497 | } |
|
|
498 | |
|
|
499 | /*****************************************************************************/ |
|
|
500 | |
|
|
501 | int inline_size |
|
|
502 | array_nextsize (int elem, int cur, int cnt) |
|
|
503 | { |
|
|
504 | int ncur = cur + 1; |
|
|
505 | |
|
|
506 | do |
|
|
507 | ncur <<= 1; |
|
|
508 | while (cnt > ncur); |
|
|
509 | |
|
|
510 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
|
|
511 | if (elem * ncur > 4096) |
|
|
512 | { |
|
|
513 | ncur *= elem; |
|
|
514 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
|
|
515 | ncur = ncur - sizeof (void *) * 4; |
|
|
516 | ncur /= elem; |
|
|
517 | } |
|
|
518 | |
|
|
519 | return ncur; |
|
|
520 | } |
|
|
521 | |
|
|
522 | static noinline void * |
|
|
523 | array_realloc (int elem, void *base, int *cur, int cnt) |
|
|
524 | { |
|
|
525 | *cur = array_nextsize (elem, *cur, cnt); |
|
|
526 | return ev_realloc (base, elem * *cur); |
|
|
527 | } |
|
|
528 | |
222 | #define array_needsize(base,cur,cnt,init) \ |
529 | #define array_needsize(type,base,cur,cnt,init) \ |
223 | if (expect_false ((cnt) > cur)) \ |
530 | if (expect_false ((cnt) > (cur))) \ |
224 | { \ |
531 | { \ |
225 | int newcnt = cur; \ |
532 | int ocur_ = (cur); \ |
226 | do \ |
533 | (base) = (type *)array_realloc \ |
227 | { \ |
534 | (sizeof (type), (base), &(cur), (cnt)); \ |
228 | newcnt = array_roundsize (base, newcnt << 1); \ |
535 | init ((base) + (ocur_), (cur) - ocur_); \ |
229 | } \ |
536 | } |
230 | while ((cnt) > newcnt); \ |
537 | |
|
|
538 | #if 0 |
|
|
539 | #define array_slim(type,stem) \ |
|
|
540 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
231 | \ |
541 | { \ |
232 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
542 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
233 | init (base + cur, newcnt - cur); \ |
543 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
234 | cur = newcnt; \ |
544 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
235 | } |
545 | } |
|
|
546 | #endif |
236 | |
547 | |
237 | #define array_free(stem, idx) \ |
548 | #define array_free(stem, idx) \ |
238 | free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
549 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
239 | |
550 | |
240 | /*****************************************************************************/ |
551 | /*****************************************************************************/ |
241 | |
552 | |
242 | static void |
553 | void noinline |
|
|
554 | ev_feed_event (EV_P_ void *w, int revents) |
|
|
555 | { |
|
|
556 | W w_ = (W)w; |
|
|
557 | int pri = ABSPRI (w_); |
|
|
558 | |
|
|
559 | if (expect_false (w_->pending)) |
|
|
560 | pendings [pri][w_->pending - 1].events |= revents; |
|
|
561 | else |
|
|
562 | { |
|
|
563 | w_->pending = ++pendingcnt [pri]; |
|
|
564 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
|
|
565 | pendings [pri][w_->pending - 1].w = w_; |
|
|
566 | pendings [pri][w_->pending - 1].events = revents; |
|
|
567 | } |
|
|
568 | } |
|
|
569 | |
|
|
570 | void inline_speed |
|
|
571 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
572 | { |
|
|
573 | int i; |
|
|
574 | |
|
|
575 | for (i = 0; i < eventcnt; ++i) |
|
|
576 | ev_feed_event (EV_A_ events [i], type); |
|
|
577 | } |
|
|
578 | |
|
|
579 | /*****************************************************************************/ |
|
|
580 | |
|
|
581 | void inline_size |
243 | anfds_init (ANFD *base, int count) |
582 | anfds_init (ANFD *base, int count) |
244 | { |
583 | { |
245 | while (count--) |
584 | while (count--) |
246 | { |
585 | { |
247 | base->head = 0; |
586 | base->head = 0; |
… | |
… | |
250 | |
589 | |
251 | ++base; |
590 | ++base; |
252 | } |
591 | } |
253 | } |
592 | } |
254 | |
593 | |
255 | static void |
594 | void inline_speed |
256 | event (EV_P_ W w, int events) |
|
|
257 | { |
|
|
258 | if (w->pending) |
|
|
259 | { |
|
|
260 | pendings [ABSPRI (w)][w->pending - 1].events |= events; |
|
|
261 | return; |
|
|
262 | } |
|
|
263 | |
|
|
264 | w->pending = ++pendingcnt [ABSPRI (w)]; |
|
|
265 | array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], ); |
|
|
266 | pendings [ABSPRI (w)][w->pending - 1].w = w; |
|
|
267 | pendings [ABSPRI (w)][w->pending - 1].events = events; |
|
|
268 | } |
|
|
269 | |
|
|
270 | static void |
|
|
271 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
272 | { |
|
|
273 | int i; |
|
|
274 | |
|
|
275 | for (i = 0; i < eventcnt; ++i) |
|
|
276 | event (EV_A_ events [i], type); |
|
|
277 | } |
|
|
278 | |
|
|
279 | static void |
|
|
280 | fd_event (EV_P_ int fd, int events) |
595 | fd_event (EV_P_ int fd, int revents) |
281 | { |
596 | { |
282 | ANFD *anfd = anfds + fd; |
597 | ANFD *anfd = anfds + fd; |
283 | struct ev_io *w; |
598 | ev_io *w; |
284 | |
599 | |
285 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
600 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
286 | { |
601 | { |
287 | int ev = w->events & events; |
602 | int ev = w->events & revents; |
288 | |
603 | |
289 | if (ev) |
604 | if (ev) |
290 | event (EV_A_ (W)w, ev); |
605 | ev_feed_event (EV_A_ (W)w, ev); |
291 | } |
606 | } |
292 | } |
607 | } |
293 | |
608 | |
294 | /*****************************************************************************/ |
609 | void |
|
|
610 | ev_feed_fd_event (EV_P_ int fd, int revents) |
|
|
611 | { |
|
|
612 | if (fd >= 0 && fd < anfdmax) |
|
|
613 | fd_event (EV_A_ fd, revents); |
|
|
614 | } |
295 | |
615 | |
296 | static void |
616 | void inline_size |
297 | fd_reify (EV_P) |
617 | fd_reify (EV_P) |
298 | { |
618 | { |
299 | int i; |
619 | int i; |
300 | |
620 | |
301 | for (i = 0; i < fdchangecnt; ++i) |
621 | for (i = 0; i < fdchangecnt; ++i) |
302 | { |
622 | { |
303 | int fd = fdchanges [i]; |
623 | int fd = fdchanges [i]; |
304 | ANFD *anfd = anfds + fd; |
624 | ANFD *anfd = anfds + fd; |
305 | struct ev_io *w; |
625 | ev_io *w; |
306 | |
626 | |
307 | int events = 0; |
627 | unsigned char events = 0; |
308 | |
628 | |
309 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
629 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
310 | events |= w->events; |
630 | events |= (unsigned char)w->events; |
311 | |
631 | |
|
|
632 | #if EV_SELECT_IS_WINSOCKET |
|
|
633 | if (events) |
|
|
634 | { |
|
|
635 | unsigned long argp; |
|
|
636 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
637 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
638 | #else |
|
|
639 | anfd->handle = _get_osfhandle (fd); |
|
|
640 | #endif |
|
|
641 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
|
|
642 | } |
|
|
643 | #endif |
|
|
644 | |
|
|
645 | { |
|
|
646 | unsigned char o_events = anfd->events; |
|
|
647 | unsigned char o_reify = anfd->reify; |
|
|
648 | |
312 | anfd->reify = 0; |
649 | anfd->reify = 0; |
313 | |
|
|
314 | method_modify (EV_A_ fd, anfd->events, events); |
|
|
315 | anfd->events = events; |
650 | anfd->events = events; |
|
|
651 | |
|
|
652 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
653 | backend_modify (EV_A_ fd, o_events, events); |
|
|
654 | } |
316 | } |
655 | } |
317 | |
656 | |
318 | fdchangecnt = 0; |
657 | fdchangecnt = 0; |
319 | } |
658 | } |
320 | |
659 | |
321 | static void |
660 | void inline_size |
322 | fd_change (EV_P_ int fd) |
661 | fd_change (EV_P_ int fd, int flags) |
323 | { |
662 | { |
324 | if (anfds [fd].reify || fdchangecnt < 0) |
663 | unsigned char reify = anfds [fd].reify; |
325 | return; |
|
|
326 | |
|
|
327 | anfds [fd].reify = 1; |
664 | anfds [fd].reify |= flags; |
328 | |
665 | |
|
|
666 | if (expect_true (!reify)) |
|
|
667 | { |
329 | ++fdchangecnt; |
668 | ++fdchangecnt; |
330 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
669 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
331 | fdchanges [fdchangecnt - 1] = fd; |
670 | fdchanges [fdchangecnt - 1] = fd; |
|
|
671 | } |
332 | } |
672 | } |
333 | |
673 | |
334 | static void |
674 | void inline_speed |
335 | fd_kill (EV_P_ int fd) |
675 | fd_kill (EV_P_ int fd) |
336 | { |
676 | { |
337 | struct ev_io *w; |
677 | ev_io *w; |
338 | |
678 | |
339 | while ((w = (struct ev_io *)anfds [fd].head)) |
679 | while ((w = (ev_io *)anfds [fd].head)) |
340 | { |
680 | { |
341 | ev_io_stop (EV_A_ w); |
681 | ev_io_stop (EV_A_ w); |
342 | event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
682 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
343 | } |
683 | } |
|
|
684 | } |
|
|
685 | |
|
|
686 | int inline_size |
|
|
687 | fd_valid (int fd) |
|
|
688 | { |
|
|
689 | #ifdef _WIN32 |
|
|
690 | return _get_osfhandle (fd) != -1; |
|
|
691 | #else |
|
|
692 | return fcntl (fd, F_GETFD) != -1; |
|
|
693 | #endif |
344 | } |
694 | } |
345 | |
695 | |
346 | /* called on EBADF to verify fds */ |
696 | /* called on EBADF to verify fds */ |
347 | static void |
697 | static void noinline |
348 | fd_ebadf (EV_P) |
698 | fd_ebadf (EV_P) |
349 | { |
699 | { |
350 | int fd; |
700 | int fd; |
351 | |
701 | |
352 | for (fd = 0; fd < anfdmax; ++fd) |
702 | for (fd = 0; fd < anfdmax; ++fd) |
353 | if (anfds [fd].events) |
703 | if (anfds [fd].events) |
354 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
704 | if (!fd_valid (fd) == -1 && errno == EBADF) |
355 | fd_kill (EV_A_ fd); |
705 | fd_kill (EV_A_ fd); |
356 | } |
706 | } |
357 | |
707 | |
358 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
708 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
359 | static void |
709 | static void noinline |
360 | fd_enomem (EV_P) |
710 | fd_enomem (EV_P) |
361 | { |
711 | { |
362 | int fd; |
712 | int fd; |
363 | |
713 | |
364 | for (fd = anfdmax; fd--; ) |
714 | for (fd = anfdmax; fd--; ) |
365 | if (anfds [fd].events) |
715 | if (anfds [fd].events) |
366 | { |
716 | { |
367 | close (fd); |
|
|
368 | fd_kill (EV_A_ fd); |
717 | fd_kill (EV_A_ fd); |
369 | return; |
718 | return; |
370 | } |
719 | } |
371 | } |
720 | } |
372 | |
721 | |
373 | /* susually called after fork if method needs to re-arm all fds from scratch */ |
722 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
374 | static void |
723 | static void noinline |
375 | fd_rearm_all (EV_P) |
724 | fd_rearm_all (EV_P) |
376 | { |
725 | { |
377 | int fd; |
726 | int fd; |
378 | |
727 | |
379 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
380 | for (fd = 0; fd < anfdmax; ++fd) |
728 | for (fd = 0; fd < anfdmax; ++fd) |
381 | if (anfds [fd].events) |
729 | if (anfds [fd].events) |
382 | { |
730 | { |
383 | anfds [fd].events = 0; |
731 | anfds [fd].events = 0; |
384 | fd_change (EV_A_ fd); |
732 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
385 | } |
733 | } |
386 | } |
734 | } |
387 | |
735 | |
388 | /*****************************************************************************/ |
736 | /*****************************************************************************/ |
389 | |
737 | |
390 | static void |
738 | void inline_speed |
391 | upheap (WT *heap, int k) |
739 | upheap (WT *heap, int k) |
392 | { |
740 | { |
393 | WT w = heap [k]; |
741 | WT w = heap [k]; |
394 | |
742 | |
395 | while (k && heap [k >> 1]->at > w->at) |
743 | while (k) |
396 | { |
744 | { |
|
|
745 | int p = (k - 1) >> 1; |
|
|
746 | |
|
|
747 | if (heap [p]->at <= w->at) |
|
|
748 | break; |
|
|
749 | |
397 | heap [k] = heap [k >> 1]; |
750 | heap [k] = heap [p]; |
398 | ((W)heap [k])->active = k + 1; |
751 | ((W)heap [k])->active = k + 1; |
399 | k >>= 1; |
752 | k = p; |
400 | } |
753 | } |
401 | |
754 | |
402 | heap [k] = w; |
755 | heap [k] = w; |
403 | ((W)heap [k])->active = k + 1; |
756 | ((W)heap [k])->active = k + 1; |
404 | |
|
|
405 | } |
757 | } |
406 | |
758 | |
407 | static void |
759 | void inline_speed |
408 | downheap (WT *heap, int N, int k) |
760 | downheap (WT *heap, int N, int k) |
409 | { |
761 | { |
410 | WT w = heap [k]; |
762 | WT w = heap [k]; |
411 | |
763 | |
412 | while (k < (N >> 1)) |
764 | for (;;) |
413 | { |
765 | { |
414 | int j = k << 1; |
766 | int c = (k << 1) + 1; |
415 | |
767 | |
416 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
768 | if (c >= N) |
417 | ++j; |
|
|
418 | |
|
|
419 | if (w->at <= heap [j]->at) |
|
|
420 | break; |
769 | break; |
421 | |
770 | |
|
|
771 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
772 | ? 1 : 0; |
|
|
773 | |
|
|
774 | if (w->at <= heap [c]->at) |
|
|
775 | break; |
|
|
776 | |
422 | heap [k] = heap [j]; |
777 | heap [k] = heap [c]; |
423 | ((W)heap [k])->active = k + 1; |
778 | ((W)heap [k])->active = k + 1; |
|
|
779 | |
424 | k = j; |
780 | k = c; |
425 | } |
781 | } |
426 | |
782 | |
427 | heap [k] = w; |
783 | heap [k] = w; |
428 | ((W)heap [k])->active = k + 1; |
784 | ((W)heap [k])->active = k + 1; |
429 | } |
785 | } |
430 | |
786 | |
|
|
787 | void inline_size |
|
|
788 | adjustheap (WT *heap, int N, int k) |
|
|
789 | { |
|
|
790 | upheap (heap, k); |
|
|
791 | downheap (heap, N, k); |
|
|
792 | } |
|
|
793 | |
431 | /*****************************************************************************/ |
794 | /*****************************************************************************/ |
432 | |
795 | |
433 | typedef struct |
796 | typedef struct |
434 | { |
797 | { |
435 | struct ev_watcher_list *head; |
798 | WL head; |
436 | sig_atomic_t volatile gotsig; |
799 | EV_ATOMIC_T gotsig; |
437 | } ANSIG; |
800 | } ANSIG; |
438 | |
801 | |
439 | static ANSIG *signals; |
802 | static ANSIG *signals; |
440 | static int signalmax; |
803 | static int signalmax; |
441 | |
804 | |
442 | static int sigpipe [2]; |
805 | static EV_ATOMIC_T gotsig; |
443 | static sig_atomic_t volatile gotsig; |
|
|
444 | static struct ev_io sigev; |
|
|
445 | |
806 | |
446 | static void |
807 | void inline_size |
447 | signals_init (ANSIG *base, int count) |
808 | signals_init (ANSIG *base, int count) |
448 | { |
809 | { |
449 | while (count--) |
810 | while (count--) |
450 | { |
811 | { |
451 | base->head = 0; |
812 | base->head = 0; |
… | |
… | |
453 | |
814 | |
454 | ++base; |
815 | ++base; |
455 | } |
816 | } |
456 | } |
817 | } |
457 | |
818 | |
|
|
819 | /*****************************************************************************/ |
|
|
820 | |
|
|
821 | void inline_speed |
|
|
822 | fd_intern (int fd) |
|
|
823 | { |
|
|
824 | #ifdef _WIN32 |
|
|
825 | int arg = 1; |
|
|
826 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
827 | #else |
|
|
828 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
829 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
830 | #endif |
|
|
831 | } |
|
|
832 | |
|
|
833 | static void noinline |
|
|
834 | evpipe_init (EV_P) |
|
|
835 | { |
|
|
836 | if (!ev_is_active (&pipeev)) |
|
|
837 | { |
|
|
838 | #if EV_USE_EVENTFD |
|
|
839 | if ((evfd = eventfd (0, 0)) >= 0) |
|
|
840 | { |
|
|
841 | evpipe [0] = -1; |
|
|
842 | fd_intern (evfd); |
|
|
843 | ev_io_set (&pipeev, evfd, EV_READ); |
|
|
844 | } |
|
|
845 | else |
|
|
846 | #endif |
|
|
847 | { |
|
|
848 | while (pipe (evpipe)) |
|
|
849 | syserr ("(libev) error creating signal/async pipe"); |
|
|
850 | |
|
|
851 | fd_intern (evpipe [0]); |
|
|
852 | fd_intern (evpipe [1]); |
|
|
853 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
|
|
854 | } |
|
|
855 | |
|
|
856 | ev_io_start (EV_A_ &pipeev); |
|
|
857 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
858 | } |
|
|
859 | } |
|
|
860 | |
|
|
861 | void inline_size |
|
|
862 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
863 | { |
|
|
864 | if (!*flag) |
|
|
865 | { |
|
|
866 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
867 | |
|
|
868 | *flag = 1; |
|
|
869 | |
|
|
870 | #if EV_USE_EVENTFD |
|
|
871 | if (evfd >= 0) |
|
|
872 | { |
|
|
873 | uint64_t counter = 1; |
|
|
874 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
875 | } |
|
|
876 | else |
|
|
877 | #endif |
|
|
878 | write (evpipe [1], &old_errno, 1); |
|
|
879 | |
|
|
880 | errno = old_errno; |
|
|
881 | } |
|
|
882 | } |
|
|
883 | |
458 | static void |
884 | static void |
|
|
885 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
886 | { |
|
|
887 | #if EV_USE_EVENTFD |
|
|
888 | if (evfd >= 0) |
|
|
889 | { |
|
|
890 | uint64_t counter = 1; |
|
|
891 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
892 | } |
|
|
893 | else |
|
|
894 | #endif |
|
|
895 | { |
|
|
896 | char dummy; |
|
|
897 | read (evpipe [0], &dummy, 1); |
|
|
898 | } |
|
|
899 | |
|
|
900 | if (gotsig && ev_is_default_loop (EV_A)) |
|
|
901 | { |
|
|
902 | int signum; |
|
|
903 | gotsig = 0; |
|
|
904 | |
|
|
905 | for (signum = signalmax; signum--; ) |
|
|
906 | if (signals [signum].gotsig) |
|
|
907 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
908 | } |
|
|
909 | |
|
|
910 | #if EV_ASYNC_ENABLE |
|
|
911 | if (gotasync) |
|
|
912 | { |
|
|
913 | int i; |
|
|
914 | gotasync = 0; |
|
|
915 | |
|
|
916 | for (i = asynccnt; i--; ) |
|
|
917 | if (asyncs [i]->sent) |
|
|
918 | { |
|
|
919 | asyncs [i]->sent = 0; |
|
|
920 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
921 | } |
|
|
922 | } |
|
|
923 | #endif |
|
|
924 | } |
|
|
925 | |
|
|
926 | /*****************************************************************************/ |
|
|
927 | |
|
|
928 | static void |
459 | sighandler (int signum) |
929 | ev_sighandler (int signum) |
460 | { |
930 | { |
|
|
931 | #if EV_MULTIPLICITY |
|
|
932 | struct ev_loop *loop = &default_loop_struct; |
|
|
933 | #endif |
|
|
934 | |
|
|
935 | #if _WIN32 |
|
|
936 | signal (signum, ev_sighandler); |
|
|
937 | #endif |
|
|
938 | |
461 | signals [signum - 1].gotsig = 1; |
939 | signals [signum - 1].gotsig = 1; |
462 | |
940 | evpipe_write (EV_A_ &gotsig); |
463 | if (!gotsig) |
|
|
464 | { |
|
|
465 | int old_errno = errno; |
|
|
466 | gotsig = 1; |
|
|
467 | write (sigpipe [1], &signum, 1); |
|
|
468 | errno = old_errno; |
|
|
469 | } |
|
|
470 | } |
941 | } |
471 | |
942 | |
472 | static void |
943 | void noinline |
473 | sigcb (EV_P_ struct ev_io *iow, int revents) |
944 | ev_feed_signal_event (EV_P_ int signum) |
474 | { |
945 | { |
475 | struct ev_watcher_list *w; |
946 | WL w; |
|
|
947 | |
|
|
948 | #if EV_MULTIPLICITY |
|
|
949 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
950 | #endif |
|
|
951 | |
476 | int signum; |
952 | --signum; |
477 | |
953 | |
478 | read (sigpipe [0], &revents, 1); |
954 | if (signum < 0 || signum >= signalmax) |
479 | gotsig = 0; |
955 | return; |
480 | |
956 | |
481 | for (signum = signalmax; signum--; ) |
|
|
482 | if (signals [signum].gotsig) |
|
|
483 | { |
|
|
484 | signals [signum].gotsig = 0; |
957 | signals [signum].gotsig = 0; |
485 | |
958 | |
486 | for (w = signals [signum].head; w; w = w->next) |
959 | for (w = signals [signum].head; w; w = w->next) |
487 | event (EV_A_ (W)w, EV_SIGNAL); |
960 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
488 | } |
|
|
489 | } |
|
|
490 | |
|
|
491 | static void |
|
|
492 | siginit (EV_P) |
|
|
493 | { |
|
|
494 | #ifndef WIN32 |
|
|
495 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
|
|
496 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
|
|
497 | |
|
|
498 | /* rather than sort out wether we really need nb, set it */ |
|
|
499 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
|
|
500 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
|
|
501 | #endif |
|
|
502 | |
|
|
503 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
504 | ev_io_start (EV_A_ &sigev); |
|
|
505 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
|
|
506 | } |
961 | } |
507 | |
962 | |
508 | /*****************************************************************************/ |
963 | /*****************************************************************************/ |
509 | |
964 | |
|
|
965 | static WL childs [EV_PID_HASHSIZE]; |
|
|
966 | |
510 | #ifndef WIN32 |
967 | #ifndef _WIN32 |
511 | |
968 | |
512 | static struct ev_child *childs [PID_HASHSIZE]; |
|
|
513 | static struct ev_signal childev; |
969 | static ev_signal childev; |
|
|
970 | |
|
|
971 | #ifndef WIFCONTINUED |
|
|
972 | # define WIFCONTINUED(status) 0 |
|
|
973 | #endif |
|
|
974 | |
|
|
975 | void inline_speed |
|
|
976 | child_reap (EV_P_ int chain, int pid, int status) |
|
|
977 | { |
|
|
978 | ev_child *w; |
|
|
979 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
|
|
980 | |
|
|
981 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
982 | { |
|
|
983 | if ((w->pid == pid || !w->pid) |
|
|
984 | && (!traced || (w->flags & 1))) |
|
|
985 | { |
|
|
986 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
|
|
987 | w->rpid = pid; |
|
|
988 | w->rstatus = status; |
|
|
989 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
990 | } |
|
|
991 | } |
|
|
992 | } |
514 | |
993 | |
515 | #ifndef WCONTINUED |
994 | #ifndef WCONTINUED |
516 | # define WCONTINUED 0 |
995 | # define WCONTINUED 0 |
517 | #endif |
996 | #endif |
518 | |
997 | |
519 | static void |
998 | static void |
520 | child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) |
|
|
521 | { |
|
|
522 | struct ev_child *w; |
|
|
523 | |
|
|
524 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
|
|
525 | if (w->pid == pid || !w->pid) |
|
|
526 | { |
|
|
527 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
|
|
528 | w->rpid = pid; |
|
|
529 | w->rstatus = status; |
|
|
530 | event (EV_A_ (W)w, EV_CHILD); |
|
|
531 | } |
|
|
532 | } |
|
|
533 | |
|
|
534 | static void |
|
|
535 | childcb (EV_P_ struct ev_signal *sw, int revents) |
999 | childcb (EV_P_ ev_signal *sw, int revents) |
536 | { |
1000 | { |
537 | int pid, status; |
1001 | int pid, status; |
538 | |
1002 | |
|
|
1003 | /* some systems define WCONTINUED but then fail to support it (linux 2.4) */ |
539 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
1004 | if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
540 | { |
1005 | if (!WCONTINUED |
|
|
1006 | || errno != EINVAL |
|
|
1007 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
|
|
1008 | return; |
|
|
1009 | |
541 | /* make sure we are called again until all childs have been reaped */ |
1010 | /* make sure we are called again until all children have been reaped */ |
|
|
1011 | /* we need to do it this way so that the callback gets called before we continue */ |
542 | event (EV_A_ (W)sw, EV_SIGNAL); |
1012 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
543 | |
1013 | |
544 | child_reap (EV_A_ sw, pid, pid, status); |
1014 | child_reap (EV_A_ pid, pid, status); |
|
|
1015 | if (EV_PID_HASHSIZE > 1) |
545 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
1016 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
546 | } |
|
|
547 | } |
1017 | } |
548 | |
1018 | |
549 | #endif |
1019 | #endif |
550 | |
1020 | |
551 | /*****************************************************************************/ |
1021 | /*****************************************************************************/ |
552 | |
1022 | |
|
|
1023 | #if EV_USE_PORT |
|
|
1024 | # include "ev_port.c" |
|
|
1025 | #endif |
553 | #if EV_USE_KQUEUE |
1026 | #if EV_USE_KQUEUE |
554 | # include "ev_kqueue.c" |
1027 | # include "ev_kqueue.c" |
555 | #endif |
1028 | #endif |
556 | #if EV_USE_EPOLL |
1029 | #if EV_USE_EPOLL |
557 | # include "ev_epoll.c" |
1030 | # include "ev_epoll.c" |
… | |
… | |
574 | { |
1047 | { |
575 | return EV_VERSION_MINOR; |
1048 | return EV_VERSION_MINOR; |
576 | } |
1049 | } |
577 | |
1050 | |
578 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1051 | /* return true if we are running with elevated privileges and should ignore env variables */ |
579 | static int |
1052 | int inline_size |
580 | enable_secure (void) |
1053 | enable_secure (void) |
581 | { |
1054 | { |
582 | #ifdef WIN32 |
1055 | #ifdef _WIN32 |
583 | return 0; |
1056 | return 0; |
584 | #else |
1057 | #else |
585 | return getuid () != geteuid () |
1058 | return getuid () != geteuid () |
586 | || getgid () != getegid (); |
1059 | || getgid () != getegid (); |
587 | #endif |
1060 | #endif |
588 | } |
1061 | } |
589 | |
1062 | |
590 | int |
1063 | unsigned int |
591 | ev_method (EV_P) |
1064 | ev_supported_backends (void) |
592 | { |
1065 | { |
593 | return method; |
1066 | unsigned int flags = 0; |
594 | } |
|
|
595 | |
1067 | |
596 | static void |
1068 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
597 | loop_init (EV_P_ int methods) |
1069 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
|
|
1070 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
1071 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
1072 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
|
|
1073 | |
|
|
1074 | return flags; |
|
|
1075 | } |
|
|
1076 | |
|
|
1077 | unsigned int |
|
|
1078 | ev_recommended_backends (void) |
598 | { |
1079 | { |
599 | if (!method) |
1080 | unsigned int flags = ev_supported_backends (); |
|
|
1081 | |
|
|
1082 | #ifndef __NetBSD__ |
|
|
1083 | /* kqueue is borked on everything but netbsd apparently */ |
|
|
1084 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
|
|
1085 | flags &= ~EVBACKEND_KQUEUE; |
|
|
1086 | #endif |
|
|
1087 | #ifdef __APPLE__ |
|
|
1088 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
|
|
1089 | flags &= ~EVBACKEND_POLL; |
|
|
1090 | #endif |
|
|
1091 | |
|
|
1092 | return flags; |
|
|
1093 | } |
|
|
1094 | |
|
|
1095 | unsigned int |
|
|
1096 | ev_embeddable_backends (void) |
|
|
1097 | { |
|
|
1098 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
|
|
1099 | |
|
|
1100 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1101 | /* please fix it and tell me how to detect the fix */ |
|
|
1102 | flags &= ~EVBACKEND_EPOLL; |
|
|
1103 | |
|
|
1104 | return flags; |
|
|
1105 | } |
|
|
1106 | |
|
|
1107 | unsigned int |
|
|
1108 | ev_backend (EV_P) |
|
|
1109 | { |
|
|
1110 | return backend; |
|
|
1111 | } |
|
|
1112 | |
|
|
1113 | unsigned int |
|
|
1114 | ev_loop_count (EV_P) |
|
|
1115 | { |
|
|
1116 | return loop_count; |
|
|
1117 | } |
|
|
1118 | |
|
|
1119 | void |
|
|
1120 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1121 | { |
|
|
1122 | io_blocktime = interval; |
|
|
1123 | } |
|
|
1124 | |
|
|
1125 | void |
|
|
1126 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1127 | { |
|
|
1128 | timeout_blocktime = interval; |
|
|
1129 | } |
|
|
1130 | |
|
|
1131 | static void noinline |
|
|
1132 | loop_init (EV_P_ unsigned int flags) |
|
|
1133 | { |
|
|
1134 | if (!backend) |
600 | { |
1135 | { |
601 | #if EV_USE_MONOTONIC |
1136 | #if EV_USE_MONOTONIC |
602 | { |
1137 | { |
603 | struct timespec ts; |
1138 | struct timespec ts; |
604 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1139 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
605 | have_monotonic = 1; |
1140 | have_monotonic = 1; |
606 | } |
1141 | } |
607 | #endif |
1142 | #endif |
608 | |
1143 | |
609 | rt_now = ev_time (); |
1144 | ev_rt_now = ev_time (); |
610 | mn_now = get_clock (); |
1145 | mn_now = get_clock (); |
611 | now_floor = mn_now; |
1146 | now_floor = mn_now; |
612 | rtmn_diff = rt_now - mn_now; |
1147 | rtmn_diff = ev_rt_now - mn_now; |
613 | |
1148 | |
614 | if (methods == EVMETHOD_AUTO) |
1149 | io_blocktime = 0.; |
615 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
1150 | timeout_blocktime = 0.; |
|
|
1151 | backend = 0; |
|
|
1152 | backend_fd = -1; |
|
|
1153 | gotasync = 0; |
|
|
1154 | #if EV_USE_INOTIFY |
|
|
1155 | fs_fd = -2; |
|
|
1156 | #endif |
|
|
1157 | |
|
|
1158 | /* pid check not overridable via env */ |
|
|
1159 | #ifndef _WIN32 |
|
|
1160 | if (flags & EVFLAG_FORKCHECK) |
|
|
1161 | curpid = getpid (); |
|
|
1162 | #endif |
|
|
1163 | |
|
|
1164 | if (!(flags & EVFLAG_NOENV) |
|
|
1165 | && !enable_secure () |
|
|
1166 | && getenv ("LIBEV_FLAGS")) |
616 | methods = atoi (getenv ("LIBEV_METHODS")); |
1167 | flags = atoi (getenv ("LIBEV_FLAGS")); |
617 | else |
|
|
618 | methods = EVMETHOD_ANY; |
|
|
619 | |
1168 | |
620 | method = 0; |
1169 | if (!(flags & 0x0000ffffUL)) |
621 | #if EV_USE_WIN32 |
1170 | flags |= ev_recommended_backends (); |
622 | if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods); |
1171 | |
|
|
1172 | #if EV_USE_PORT |
|
|
1173 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
623 | #endif |
1174 | #endif |
624 | #if EV_USE_KQUEUE |
1175 | #if EV_USE_KQUEUE |
625 | if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); |
1176 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
626 | #endif |
1177 | #endif |
627 | #if EV_USE_EPOLL |
1178 | #if EV_USE_EPOLL |
628 | if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); |
1179 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
629 | #endif |
1180 | #endif |
630 | #if EV_USE_POLL |
1181 | #if EV_USE_POLL |
631 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
1182 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
632 | #endif |
1183 | #endif |
633 | #if EV_USE_SELECT |
1184 | #if EV_USE_SELECT |
634 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
1185 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
635 | #endif |
1186 | #endif |
636 | } |
|
|
637 | } |
|
|
638 | |
1187 | |
639 | void |
1188 | ev_init (&pipeev, pipecb); |
|
|
1189 | ev_set_priority (&pipeev, EV_MAXPRI); |
|
|
1190 | } |
|
|
1191 | } |
|
|
1192 | |
|
|
1193 | static void noinline |
640 | loop_destroy (EV_P) |
1194 | loop_destroy (EV_P) |
641 | { |
1195 | { |
642 | int i; |
1196 | int i; |
643 | |
1197 | |
|
|
1198 | if (ev_is_active (&pipeev)) |
|
|
1199 | { |
|
|
1200 | ev_ref (EV_A); /* signal watcher */ |
|
|
1201 | ev_io_stop (EV_A_ &pipeev); |
|
|
1202 | |
|
|
1203 | #if EV_USE_EVENTFD |
|
|
1204 | if (evfd >= 0) |
|
|
1205 | close (evfd); |
|
|
1206 | #endif |
|
|
1207 | |
|
|
1208 | if (evpipe [0] >= 0) |
|
|
1209 | { |
|
|
1210 | close (evpipe [0]); |
|
|
1211 | close (evpipe [1]); |
|
|
1212 | } |
|
|
1213 | } |
|
|
1214 | |
644 | #if EV_USE_WIN32 |
1215 | #if EV_USE_INOTIFY |
645 | if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A); |
1216 | if (fs_fd >= 0) |
|
|
1217 | close (fs_fd); |
|
|
1218 | #endif |
|
|
1219 | |
|
|
1220 | if (backend_fd >= 0) |
|
|
1221 | close (backend_fd); |
|
|
1222 | |
|
|
1223 | #if EV_USE_PORT |
|
|
1224 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
646 | #endif |
1225 | #endif |
647 | #if EV_USE_KQUEUE |
1226 | #if EV_USE_KQUEUE |
648 | if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); |
1227 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
649 | #endif |
1228 | #endif |
650 | #if EV_USE_EPOLL |
1229 | #if EV_USE_EPOLL |
651 | if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); |
1230 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
652 | #endif |
1231 | #endif |
653 | #if EV_USE_POLL |
1232 | #if EV_USE_POLL |
654 | if (method == EVMETHOD_POLL ) poll_destroy (EV_A); |
1233 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
655 | #endif |
1234 | #endif |
656 | #if EV_USE_SELECT |
1235 | #if EV_USE_SELECT |
657 | if (method == EVMETHOD_SELECT) select_destroy (EV_A); |
1236 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
658 | #endif |
1237 | #endif |
659 | |
1238 | |
660 | for (i = NUMPRI; i--; ) |
1239 | for (i = NUMPRI; i--; ) |
|
|
1240 | { |
661 | array_free (pending, [i]); |
1241 | array_free (pending, [i]); |
|
|
1242 | #if EV_IDLE_ENABLE |
|
|
1243 | array_free (idle, [i]); |
|
|
1244 | #endif |
|
|
1245 | } |
662 | |
1246 | |
|
|
1247 | ev_free (anfds); anfdmax = 0; |
|
|
1248 | |
|
|
1249 | /* have to use the microsoft-never-gets-it-right macro */ |
663 | array_free (fdchange, ); |
1250 | array_free (fdchange, EMPTY); |
664 | array_free (timer, ); |
1251 | array_free (timer, EMPTY); |
|
|
1252 | #if EV_PERIODIC_ENABLE |
665 | array_free (periodic, ); |
1253 | array_free (periodic, EMPTY); |
666 | array_free (idle, ); |
1254 | #endif |
|
|
1255 | #if EV_FORK_ENABLE |
|
|
1256 | array_free (fork, EMPTY); |
|
|
1257 | #endif |
667 | array_free (prepare, ); |
1258 | array_free (prepare, EMPTY); |
668 | array_free (check, ); |
1259 | array_free (check, EMPTY); |
|
|
1260 | #if EV_ASYNC_ENABLE |
|
|
1261 | array_free (async, EMPTY); |
|
|
1262 | #endif |
669 | |
1263 | |
670 | method = 0; |
1264 | backend = 0; |
671 | /*TODO*/ |
|
|
672 | } |
1265 | } |
673 | |
1266 | |
674 | void |
1267 | void inline_size infy_fork (EV_P); |
|
|
1268 | |
|
|
1269 | void inline_size |
675 | loop_fork (EV_P) |
1270 | loop_fork (EV_P) |
676 | { |
1271 | { |
677 | /*TODO*/ |
1272 | #if EV_USE_PORT |
|
|
1273 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
|
|
1274 | #endif |
|
|
1275 | #if EV_USE_KQUEUE |
|
|
1276 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
|
|
1277 | #endif |
678 | #if EV_USE_EPOLL |
1278 | #if EV_USE_EPOLL |
679 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
1279 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
680 | #endif |
1280 | #endif |
681 | #if EV_USE_KQUEUE |
1281 | #if EV_USE_INOTIFY |
682 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
1282 | infy_fork (EV_A); |
683 | #endif |
1283 | #endif |
|
|
1284 | |
|
|
1285 | if (ev_is_active (&pipeev)) |
|
|
1286 | { |
|
|
1287 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1288 | /* while we modify the fd vars */ |
|
|
1289 | gotsig = 1; |
|
|
1290 | #if EV_ASYNC_ENABLE |
|
|
1291 | gotasync = 1; |
|
|
1292 | #endif |
|
|
1293 | |
|
|
1294 | ev_ref (EV_A); |
|
|
1295 | ev_io_stop (EV_A_ &pipeev); |
|
|
1296 | |
|
|
1297 | #if EV_USE_EVENTFD |
|
|
1298 | if (evfd >= 0) |
|
|
1299 | close (evfd); |
|
|
1300 | #endif |
|
|
1301 | |
|
|
1302 | if (evpipe [0] >= 0) |
|
|
1303 | { |
|
|
1304 | close (evpipe [0]); |
|
|
1305 | close (evpipe [1]); |
|
|
1306 | } |
|
|
1307 | |
|
|
1308 | evpipe_init (EV_A); |
|
|
1309 | /* now iterate over everything, in case we missed something */ |
|
|
1310 | pipecb (EV_A_ &pipeev, EV_READ); |
|
|
1311 | } |
|
|
1312 | |
|
|
1313 | postfork = 0; |
684 | } |
1314 | } |
685 | |
1315 | |
686 | #if EV_MULTIPLICITY |
1316 | #if EV_MULTIPLICITY |
687 | struct ev_loop * |
1317 | struct ev_loop * |
688 | ev_loop_new (int methods) |
1318 | ev_loop_new (unsigned int flags) |
689 | { |
1319 | { |
690 | struct ev_loop *loop = (struct ev_loop *)calloc (1, sizeof (struct ev_loop)); |
1320 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
691 | |
1321 | |
|
|
1322 | memset (loop, 0, sizeof (struct ev_loop)); |
|
|
1323 | |
692 | loop_init (EV_A_ methods); |
1324 | loop_init (EV_A_ flags); |
693 | |
1325 | |
694 | if (ev_method (EV_A)) |
1326 | if (ev_backend (EV_A)) |
695 | return loop; |
1327 | return loop; |
696 | |
1328 | |
697 | return 0; |
1329 | return 0; |
698 | } |
1330 | } |
699 | |
1331 | |
700 | void |
1332 | void |
701 | ev_loop_destroy (EV_P) |
1333 | ev_loop_destroy (EV_P) |
702 | { |
1334 | { |
703 | loop_destroy (EV_A); |
1335 | loop_destroy (EV_A); |
704 | free (loop); |
1336 | ev_free (loop); |
705 | } |
1337 | } |
706 | |
1338 | |
707 | void |
1339 | void |
708 | ev_loop_fork (EV_P) |
1340 | ev_loop_fork (EV_P) |
709 | { |
1341 | { |
710 | loop_fork (EV_A); |
1342 | postfork = 1; /* must be in line with ev_default_fork */ |
711 | } |
1343 | } |
712 | |
1344 | |
713 | #endif |
1345 | #endif |
714 | |
1346 | |
715 | #if EV_MULTIPLICITY |
1347 | #if EV_MULTIPLICITY |
716 | struct ev_loop default_loop_struct; |
|
|
717 | static struct ev_loop *default_loop; |
|
|
718 | |
|
|
719 | struct ev_loop * |
1348 | struct ev_loop * |
|
|
1349 | ev_default_loop_init (unsigned int flags) |
720 | #else |
1350 | #else |
721 | static int default_loop; |
|
|
722 | |
|
|
723 | int |
1351 | int |
|
|
1352 | ev_default_loop (unsigned int flags) |
724 | #endif |
1353 | #endif |
725 | ev_default_loop (int methods) |
|
|
726 | { |
1354 | { |
727 | if (sigpipe [0] == sigpipe [1]) |
|
|
728 | if (pipe (sigpipe)) |
|
|
729 | return 0; |
|
|
730 | |
|
|
731 | if (!default_loop) |
1355 | if (!ev_default_loop_ptr) |
732 | { |
1356 | { |
733 | #if EV_MULTIPLICITY |
1357 | #if EV_MULTIPLICITY |
734 | struct ev_loop *loop = default_loop = &default_loop_struct; |
1358 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
735 | #else |
1359 | #else |
736 | default_loop = 1; |
1360 | ev_default_loop_ptr = 1; |
737 | #endif |
1361 | #endif |
738 | |
1362 | |
739 | loop_init (EV_A_ methods); |
1363 | loop_init (EV_A_ flags); |
740 | |
1364 | |
741 | if (ev_method (EV_A)) |
1365 | if (ev_backend (EV_A)) |
742 | { |
1366 | { |
743 | ev_watcher_init (&sigev, sigcb); |
|
|
744 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
745 | siginit (EV_A); |
|
|
746 | |
|
|
747 | #ifndef WIN32 |
1367 | #ifndef _WIN32 |
748 | ev_signal_init (&childev, childcb, SIGCHLD); |
1368 | ev_signal_init (&childev, childcb, SIGCHLD); |
749 | ev_set_priority (&childev, EV_MAXPRI); |
1369 | ev_set_priority (&childev, EV_MAXPRI); |
750 | ev_signal_start (EV_A_ &childev); |
1370 | ev_signal_start (EV_A_ &childev); |
751 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1371 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
752 | #endif |
1372 | #endif |
753 | } |
1373 | } |
754 | else |
1374 | else |
755 | default_loop = 0; |
1375 | ev_default_loop_ptr = 0; |
756 | } |
1376 | } |
757 | |
1377 | |
758 | return default_loop; |
1378 | return ev_default_loop_ptr; |
759 | } |
1379 | } |
760 | |
1380 | |
761 | void |
1381 | void |
762 | ev_default_destroy (void) |
1382 | ev_default_destroy (void) |
763 | { |
1383 | { |
764 | #if EV_MULTIPLICITY |
1384 | #if EV_MULTIPLICITY |
765 | struct ev_loop *loop = default_loop; |
1385 | struct ev_loop *loop = ev_default_loop_ptr; |
766 | #endif |
1386 | #endif |
767 | |
1387 | |
|
|
1388 | #ifndef _WIN32 |
768 | ev_ref (EV_A); /* child watcher */ |
1389 | ev_ref (EV_A); /* child watcher */ |
769 | ev_signal_stop (EV_A_ &childev); |
1390 | ev_signal_stop (EV_A_ &childev); |
770 | |
1391 | #endif |
771 | ev_ref (EV_A); /* signal watcher */ |
|
|
772 | ev_io_stop (EV_A_ &sigev); |
|
|
773 | |
|
|
774 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
775 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
776 | |
1392 | |
777 | loop_destroy (EV_A); |
1393 | loop_destroy (EV_A); |
778 | } |
1394 | } |
779 | |
1395 | |
780 | void |
1396 | void |
781 | ev_default_fork (void) |
1397 | ev_default_fork (void) |
782 | { |
1398 | { |
783 | #if EV_MULTIPLICITY |
1399 | #if EV_MULTIPLICITY |
784 | struct ev_loop *loop = default_loop; |
1400 | struct ev_loop *loop = ev_default_loop_ptr; |
785 | #endif |
1401 | #endif |
786 | |
1402 | |
787 | loop_fork (EV_A); |
1403 | if (backend) |
788 | |
1404 | postfork = 1; /* must be in line with ev_loop_fork */ |
789 | ev_io_stop (EV_A_ &sigev); |
|
|
790 | close (sigpipe [0]); |
|
|
791 | close (sigpipe [1]); |
|
|
792 | pipe (sigpipe); |
|
|
793 | |
|
|
794 | ev_ref (EV_A); /* signal watcher */ |
|
|
795 | siginit (EV_A); |
|
|
796 | } |
1405 | } |
797 | |
1406 | |
798 | /*****************************************************************************/ |
1407 | /*****************************************************************************/ |
799 | |
1408 | |
800 | static void |
1409 | void |
|
|
1410 | ev_invoke (EV_P_ void *w, int revents) |
|
|
1411 | { |
|
|
1412 | EV_CB_INVOKE ((W)w, revents); |
|
|
1413 | } |
|
|
1414 | |
|
|
1415 | void inline_speed |
801 | call_pending (EV_P) |
1416 | call_pending (EV_P) |
802 | { |
1417 | { |
803 | int pri; |
1418 | int pri; |
804 | |
1419 | |
805 | for (pri = NUMPRI; pri--; ) |
1420 | for (pri = NUMPRI; pri--; ) |
806 | while (pendingcnt [pri]) |
1421 | while (pendingcnt [pri]) |
807 | { |
1422 | { |
808 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1423 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
809 | |
1424 | |
810 | if (p->w) |
1425 | if (expect_true (p->w)) |
811 | { |
1426 | { |
|
|
1427 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1428 | |
812 | p->w->pending = 0; |
1429 | p->w->pending = 0; |
813 | |
1430 | EV_CB_INVOKE (p->w, p->events); |
814 | ((void (*)(EV_P_ W, int))p->w->cb) (EV_A_ p->w, p->events); |
|
|
815 | } |
1431 | } |
816 | } |
1432 | } |
817 | } |
1433 | } |
818 | |
1434 | |
819 | static void |
1435 | void inline_size |
820 | timers_reify (EV_P) |
1436 | timers_reify (EV_P) |
821 | { |
1437 | { |
822 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1438 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
823 | { |
1439 | { |
824 | struct ev_timer *w = timers [0]; |
1440 | ev_timer *w = (ev_timer *)timers [0]; |
825 | |
1441 | |
826 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
1442 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
827 | |
1443 | |
828 | /* first reschedule or stop timer */ |
1444 | /* first reschedule or stop timer */ |
829 | if (w->repeat) |
1445 | if (w->repeat) |
830 | { |
1446 | { |
831 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1447 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1448 | |
832 | ((WT)w)->at = mn_now + w->repeat; |
1449 | ((WT)w)->at += w->repeat; |
|
|
1450 | if (((WT)w)->at < mn_now) |
|
|
1451 | ((WT)w)->at = mn_now; |
|
|
1452 | |
833 | downheap ((WT *)timers, timercnt, 0); |
1453 | downheap (timers, timercnt, 0); |
834 | } |
1454 | } |
835 | else |
1455 | else |
836 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1456 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
837 | |
1457 | |
838 | event (EV_A_ (W)w, EV_TIMEOUT); |
1458 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
839 | } |
1459 | } |
840 | } |
1460 | } |
841 | |
1461 | |
842 | static void |
1462 | #if EV_PERIODIC_ENABLE |
|
|
1463 | void inline_size |
843 | periodics_reify (EV_P) |
1464 | periodics_reify (EV_P) |
844 | { |
1465 | { |
845 | while (periodiccnt && ((WT)periodics [0])->at <= rt_now) |
1466 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
846 | { |
1467 | { |
847 | struct ev_periodic *w = periodics [0]; |
1468 | ev_periodic *w = (ev_periodic *)periodics [0]; |
848 | |
1469 | |
849 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
1470 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
850 | |
1471 | |
851 | /* first reschedule or stop timer */ |
1472 | /* first reschedule or stop timer */ |
852 | if (w->interval) |
1473 | if (w->reschedule_cb) |
853 | { |
1474 | { |
|
|
1475 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
|
|
1476 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1477 | downheap (periodics, periodiccnt, 0); |
|
|
1478 | } |
|
|
1479 | else if (w->interval) |
|
|
1480 | { |
854 | ((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
1481 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1482 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
855 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now)); |
1483 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
856 | downheap ((WT *)periodics, periodiccnt, 0); |
1484 | downheap (periodics, periodiccnt, 0); |
857 | } |
1485 | } |
858 | else |
1486 | else |
859 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1487 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
860 | |
1488 | |
861 | event (EV_A_ (W)w, EV_PERIODIC); |
1489 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
862 | } |
1490 | } |
863 | } |
1491 | } |
864 | |
1492 | |
865 | static void |
1493 | static void noinline |
866 | periodics_reschedule (EV_P) |
1494 | periodics_reschedule (EV_P) |
867 | { |
1495 | { |
868 | int i; |
1496 | int i; |
869 | |
1497 | |
870 | /* adjust periodics after time jump */ |
1498 | /* adjust periodics after time jump */ |
871 | for (i = 0; i < periodiccnt; ++i) |
1499 | for (i = 0; i < periodiccnt; ++i) |
872 | { |
1500 | { |
873 | struct ev_periodic *w = periodics [i]; |
1501 | ev_periodic *w = (ev_periodic *)periodics [i]; |
874 | |
1502 | |
|
|
1503 | if (w->reschedule_cb) |
|
|
1504 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
875 | if (w->interval) |
1505 | else if (w->interval) |
|
|
1506 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1507 | } |
|
|
1508 | |
|
|
1509 | /* now rebuild the heap */ |
|
|
1510 | for (i = periodiccnt >> 1; i--; ) |
|
|
1511 | downheap (periodics, periodiccnt, i); |
|
|
1512 | } |
|
|
1513 | #endif |
|
|
1514 | |
|
|
1515 | #if EV_IDLE_ENABLE |
|
|
1516 | void inline_size |
|
|
1517 | idle_reify (EV_P) |
|
|
1518 | { |
|
|
1519 | if (expect_false (idleall)) |
|
|
1520 | { |
|
|
1521 | int pri; |
|
|
1522 | |
|
|
1523 | for (pri = NUMPRI; pri--; ) |
876 | { |
1524 | { |
877 | ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1525 | if (pendingcnt [pri]) |
|
|
1526 | break; |
878 | |
1527 | |
879 | if (fabs (diff) >= 1e-4) |
1528 | if (idlecnt [pri]) |
880 | { |
1529 | { |
881 | ev_periodic_stop (EV_A_ w); |
1530 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
882 | ev_periodic_start (EV_A_ w); |
1531 | break; |
883 | |
|
|
884 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
|
|
885 | } |
1532 | } |
886 | } |
1533 | } |
887 | } |
1534 | } |
888 | } |
1535 | } |
|
|
1536 | #endif |
889 | |
1537 | |
890 | inline int |
1538 | void inline_speed |
891 | time_update_monotonic (EV_P) |
1539 | time_update (EV_P_ ev_tstamp max_block) |
892 | { |
|
|
893 | mn_now = get_clock (); |
|
|
894 | |
|
|
895 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
|
|
896 | { |
|
|
897 | rt_now = rtmn_diff + mn_now; |
|
|
898 | return 0; |
|
|
899 | } |
|
|
900 | else |
|
|
901 | { |
|
|
902 | now_floor = mn_now; |
|
|
903 | rt_now = ev_time (); |
|
|
904 | return 1; |
|
|
905 | } |
|
|
906 | } |
|
|
907 | |
|
|
908 | static void |
|
|
909 | time_update (EV_P) |
|
|
910 | { |
1540 | { |
911 | int i; |
1541 | int i; |
912 | |
1542 | |
913 | #if EV_USE_MONOTONIC |
1543 | #if EV_USE_MONOTONIC |
914 | if (expect_true (have_monotonic)) |
1544 | if (expect_true (have_monotonic)) |
915 | { |
1545 | { |
916 | if (time_update_monotonic (EV_A)) |
1546 | ev_tstamp odiff = rtmn_diff; |
|
|
1547 | |
|
|
1548 | mn_now = get_clock (); |
|
|
1549 | |
|
|
1550 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
1551 | /* interpolate in the meantime */ |
|
|
1552 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
917 | { |
1553 | { |
918 | ev_tstamp odiff = rtmn_diff; |
1554 | ev_rt_now = rtmn_diff + mn_now; |
|
|
1555 | return; |
|
|
1556 | } |
919 | |
1557 | |
|
|
1558 | now_floor = mn_now; |
|
|
1559 | ev_rt_now = ev_time (); |
|
|
1560 | |
920 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
1561 | /* loop a few times, before making important decisions. |
|
|
1562 | * on the choice of "4": one iteration isn't enough, |
|
|
1563 | * in case we get preempted during the calls to |
|
|
1564 | * ev_time and get_clock. a second call is almost guaranteed |
|
|
1565 | * to succeed in that case, though. and looping a few more times |
|
|
1566 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1567 | * in the unlikely event of having been preempted here. |
|
|
1568 | */ |
|
|
1569 | for (i = 4; --i; ) |
921 | { |
1570 | { |
922 | rtmn_diff = rt_now - mn_now; |
1571 | rtmn_diff = ev_rt_now - mn_now; |
923 | |
1572 | |
924 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1573 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
925 | return; /* all is well */ |
1574 | return; /* all is well */ |
926 | |
1575 | |
927 | rt_now = ev_time (); |
1576 | ev_rt_now = ev_time (); |
928 | mn_now = get_clock (); |
1577 | mn_now = get_clock (); |
929 | now_floor = mn_now; |
1578 | now_floor = mn_now; |
930 | } |
1579 | } |
931 | |
1580 | |
|
|
1581 | # if EV_PERIODIC_ENABLE |
|
|
1582 | periodics_reschedule (EV_A); |
|
|
1583 | # endif |
|
|
1584 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1585 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1586 | } |
|
|
1587 | else |
|
|
1588 | #endif |
|
|
1589 | { |
|
|
1590 | ev_rt_now = ev_time (); |
|
|
1591 | |
|
|
1592 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
|
|
1593 | { |
|
|
1594 | #if EV_PERIODIC_ENABLE |
932 | periodics_reschedule (EV_A); |
1595 | periodics_reschedule (EV_A); |
933 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1596 | #endif |
934 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1597 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1598 | for (i = 0; i < timercnt; ++i) |
|
|
1599 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
935 | } |
1600 | } |
936 | } |
|
|
937 | else |
|
|
938 | #endif |
|
|
939 | { |
|
|
940 | rt_now = ev_time (); |
|
|
941 | |
1601 | |
942 | if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
|
|
943 | { |
|
|
944 | periodics_reschedule (EV_A); |
|
|
945 | |
|
|
946 | /* adjust timers. this is easy, as the offset is the same for all */ |
|
|
947 | for (i = 0; i < timercnt; ++i) |
|
|
948 | ((WT)timers [i])->at += rt_now - mn_now; |
|
|
949 | } |
|
|
950 | |
|
|
951 | mn_now = rt_now; |
1602 | mn_now = ev_rt_now; |
952 | } |
1603 | } |
953 | } |
1604 | } |
954 | |
1605 | |
955 | void |
1606 | void |
956 | ev_ref (EV_P) |
1607 | ev_ref (EV_P) |
… | |
… | |
967 | static int loop_done; |
1618 | static int loop_done; |
968 | |
1619 | |
969 | void |
1620 | void |
970 | ev_loop (EV_P_ int flags) |
1621 | ev_loop (EV_P_ int flags) |
971 | { |
1622 | { |
972 | double block; |
1623 | loop_done = EVUNLOOP_CANCEL; |
973 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
1624 | |
|
|
1625 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
974 | |
1626 | |
975 | do |
1627 | do |
976 | { |
1628 | { |
|
|
1629 | #ifndef _WIN32 |
|
|
1630 | if (expect_false (curpid)) /* penalise the forking check even more */ |
|
|
1631 | if (expect_false (getpid () != curpid)) |
|
|
1632 | { |
|
|
1633 | curpid = getpid (); |
|
|
1634 | postfork = 1; |
|
|
1635 | } |
|
|
1636 | #endif |
|
|
1637 | |
|
|
1638 | #if EV_FORK_ENABLE |
|
|
1639 | /* we might have forked, so queue fork handlers */ |
|
|
1640 | if (expect_false (postfork)) |
|
|
1641 | if (forkcnt) |
|
|
1642 | { |
|
|
1643 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
|
|
1644 | call_pending (EV_A); |
|
|
1645 | } |
|
|
1646 | #endif |
|
|
1647 | |
977 | /* queue check watchers (and execute them) */ |
1648 | /* queue prepare watchers (and execute them) */ |
978 | if (expect_false (preparecnt)) |
1649 | if (expect_false (preparecnt)) |
979 | { |
1650 | { |
980 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1651 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
981 | call_pending (EV_A); |
1652 | call_pending (EV_A); |
982 | } |
1653 | } |
983 | |
1654 | |
|
|
1655 | if (expect_false (!activecnt)) |
|
|
1656 | break; |
|
|
1657 | |
|
|
1658 | /* we might have forked, so reify kernel state if necessary */ |
|
|
1659 | if (expect_false (postfork)) |
|
|
1660 | loop_fork (EV_A); |
|
|
1661 | |
984 | /* update fd-related kernel structures */ |
1662 | /* update fd-related kernel structures */ |
985 | fd_reify (EV_A); |
1663 | fd_reify (EV_A); |
986 | |
1664 | |
987 | /* calculate blocking time */ |
1665 | /* calculate blocking time */ |
|
|
1666 | { |
|
|
1667 | ev_tstamp waittime = 0.; |
|
|
1668 | ev_tstamp sleeptime = 0.; |
988 | |
1669 | |
989 | /* we only need this for !monotonic clockor timers, but as we basically |
1670 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
990 | always have timers, we just calculate it always */ |
|
|
991 | #if EV_USE_MONOTONIC |
|
|
992 | if (expect_true (have_monotonic)) |
|
|
993 | time_update_monotonic (EV_A); |
|
|
994 | else |
|
|
995 | #endif |
|
|
996 | { |
1671 | { |
997 | rt_now = ev_time (); |
1672 | /* update time to cancel out callback processing overhead */ |
998 | mn_now = rt_now; |
1673 | time_update (EV_A_ 1e100); |
999 | } |
|
|
1000 | |
1674 | |
1001 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
|
|
1002 | block = 0.; |
|
|
1003 | else |
|
|
1004 | { |
|
|
1005 | block = MAX_BLOCKTIME; |
1675 | waittime = MAX_BLOCKTIME; |
1006 | |
1676 | |
1007 | if (timercnt) |
1677 | if (timercnt) |
1008 | { |
1678 | { |
1009 | ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; |
1679 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1010 | if (block > to) block = to; |
1680 | if (waittime > to) waittime = to; |
1011 | } |
1681 | } |
1012 | |
1682 | |
|
|
1683 | #if EV_PERIODIC_ENABLE |
1013 | if (periodiccnt) |
1684 | if (periodiccnt) |
1014 | { |
1685 | { |
1015 | ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge; |
1686 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1016 | if (block > to) block = to; |
1687 | if (waittime > to) waittime = to; |
1017 | } |
1688 | } |
|
|
1689 | #endif |
1018 | |
1690 | |
1019 | if (block < 0.) block = 0.; |
1691 | if (expect_false (waittime < timeout_blocktime)) |
|
|
1692 | waittime = timeout_blocktime; |
|
|
1693 | |
|
|
1694 | sleeptime = waittime - backend_fudge; |
|
|
1695 | |
|
|
1696 | if (expect_true (sleeptime > io_blocktime)) |
|
|
1697 | sleeptime = io_blocktime; |
|
|
1698 | |
|
|
1699 | if (sleeptime) |
|
|
1700 | { |
|
|
1701 | ev_sleep (sleeptime); |
|
|
1702 | waittime -= sleeptime; |
|
|
1703 | } |
1020 | } |
1704 | } |
1021 | |
1705 | |
1022 | method_poll (EV_A_ block); |
1706 | ++loop_count; |
|
|
1707 | backend_poll (EV_A_ waittime); |
1023 | |
1708 | |
1024 | /* update rt_now, do magic */ |
1709 | /* update ev_rt_now, do magic */ |
1025 | time_update (EV_A); |
1710 | time_update (EV_A_ waittime + sleeptime); |
|
|
1711 | } |
1026 | |
1712 | |
1027 | /* queue pending timers and reschedule them */ |
1713 | /* queue pending timers and reschedule them */ |
1028 | timers_reify (EV_A); /* relative timers called last */ |
1714 | timers_reify (EV_A); /* relative timers called last */ |
|
|
1715 | #if EV_PERIODIC_ENABLE |
1029 | periodics_reify (EV_A); /* absolute timers called first */ |
1716 | periodics_reify (EV_A); /* absolute timers called first */ |
|
|
1717 | #endif |
1030 | |
1718 | |
|
|
1719 | #if EV_IDLE_ENABLE |
1031 | /* queue idle watchers unless io or timers are pending */ |
1720 | /* queue idle watchers unless other events are pending */ |
1032 | if (!pendingcnt) |
1721 | idle_reify (EV_A); |
1033 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1722 | #endif |
1034 | |
1723 | |
1035 | /* queue check watchers, to be executed first */ |
1724 | /* queue check watchers, to be executed first */ |
1036 | if (checkcnt) |
1725 | if (expect_false (checkcnt)) |
1037 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1726 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1038 | |
1727 | |
1039 | call_pending (EV_A); |
1728 | call_pending (EV_A); |
1040 | } |
1729 | } |
1041 | while (activecnt && !loop_done); |
1730 | while (expect_true ( |
|
|
1731 | activecnt |
|
|
1732 | && !loop_done |
|
|
1733 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
1734 | )); |
1042 | |
1735 | |
1043 | if (loop_done != 2) |
1736 | if (loop_done == EVUNLOOP_ONE) |
1044 | loop_done = 0; |
1737 | loop_done = EVUNLOOP_CANCEL; |
1045 | } |
1738 | } |
1046 | |
1739 | |
1047 | void |
1740 | void |
1048 | ev_unloop (EV_P_ int how) |
1741 | ev_unloop (EV_P_ int how) |
1049 | { |
1742 | { |
1050 | loop_done = how; |
1743 | loop_done = how; |
1051 | } |
1744 | } |
1052 | |
1745 | |
1053 | /*****************************************************************************/ |
1746 | /*****************************************************************************/ |
1054 | |
1747 | |
1055 | inline void |
1748 | void inline_size |
1056 | wlist_add (WL *head, WL elem) |
1749 | wlist_add (WL *head, WL elem) |
1057 | { |
1750 | { |
1058 | elem->next = *head; |
1751 | elem->next = *head; |
1059 | *head = elem; |
1752 | *head = elem; |
1060 | } |
1753 | } |
1061 | |
1754 | |
1062 | inline void |
1755 | void inline_size |
1063 | wlist_del (WL *head, WL elem) |
1756 | wlist_del (WL *head, WL elem) |
1064 | { |
1757 | { |
1065 | while (*head) |
1758 | while (*head) |
1066 | { |
1759 | { |
1067 | if (*head == elem) |
1760 | if (*head == elem) |
… | |
… | |
1072 | |
1765 | |
1073 | head = &(*head)->next; |
1766 | head = &(*head)->next; |
1074 | } |
1767 | } |
1075 | } |
1768 | } |
1076 | |
1769 | |
1077 | inline void |
1770 | void inline_speed |
1078 | ev_clear_pending (EV_P_ W w) |
1771 | clear_pending (EV_P_ W w) |
1079 | { |
1772 | { |
1080 | if (w->pending) |
1773 | if (w->pending) |
1081 | { |
1774 | { |
1082 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1775 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1083 | w->pending = 0; |
1776 | w->pending = 0; |
1084 | } |
1777 | } |
1085 | } |
1778 | } |
1086 | |
1779 | |
1087 | inline void |
1780 | int |
|
|
1781 | ev_clear_pending (EV_P_ void *w) |
|
|
1782 | { |
|
|
1783 | W w_ = (W)w; |
|
|
1784 | int pending = w_->pending; |
|
|
1785 | |
|
|
1786 | if (expect_true (pending)) |
|
|
1787 | { |
|
|
1788 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
1789 | w_->pending = 0; |
|
|
1790 | p->w = 0; |
|
|
1791 | return p->events; |
|
|
1792 | } |
|
|
1793 | else |
|
|
1794 | return 0; |
|
|
1795 | } |
|
|
1796 | |
|
|
1797 | void inline_size |
|
|
1798 | pri_adjust (EV_P_ W w) |
|
|
1799 | { |
|
|
1800 | int pri = w->priority; |
|
|
1801 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
|
|
1802 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
|
|
1803 | w->priority = pri; |
|
|
1804 | } |
|
|
1805 | |
|
|
1806 | void inline_speed |
1088 | ev_start (EV_P_ W w, int active) |
1807 | ev_start (EV_P_ W w, int active) |
1089 | { |
1808 | { |
1090 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
1809 | pri_adjust (EV_A_ w); |
1091 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
1092 | |
|
|
1093 | w->active = active; |
1810 | w->active = active; |
1094 | ev_ref (EV_A); |
1811 | ev_ref (EV_A); |
1095 | } |
1812 | } |
1096 | |
1813 | |
1097 | inline void |
1814 | void inline_size |
1098 | ev_stop (EV_P_ W w) |
1815 | ev_stop (EV_P_ W w) |
1099 | { |
1816 | { |
1100 | ev_unref (EV_A); |
1817 | ev_unref (EV_A); |
1101 | w->active = 0; |
1818 | w->active = 0; |
1102 | } |
1819 | } |
1103 | |
1820 | |
1104 | /*****************************************************************************/ |
1821 | /*****************************************************************************/ |
1105 | |
1822 | |
1106 | void |
1823 | void noinline |
1107 | ev_io_start (EV_P_ struct ev_io *w) |
1824 | ev_io_start (EV_P_ ev_io *w) |
1108 | { |
1825 | { |
1109 | int fd = w->fd; |
1826 | int fd = w->fd; |
1110 | |
1827 | |
1111 | if (ev_is_active (w)) |
1828 | if (expect_false (ev_is_active (w))) |
1112 | return; |
1829 | return; |
1113 | |
1830 | |
1114 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1831 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1115 | |
1832 | |
1116 | ev_start (EV_A_ (W)w, 1); |
1833 | ev_start (EV_A_ (W)w, 1); |
1117 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
1834 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1118 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1835 | wlist_add (&anfds[fd].head, (WL)w); |
1119 | |
1836 | |
1120 | fd_change (EV_A_ fd); |
1837 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
|
|
1838 | w->events &= ~EV_IOFDSET; |
1121 | } |
1839 | } |
1122 | |
1840 | |
1123 | void |
1841 | void noinline |
1124 | ev_io_stop (EV_P_ struct ev_io *w) |
1842 | ev_io_stop (EV_P_ ev_io *w) |
1125 | { |
1843 | { |
1126 | ev_clear_pending (EV_A_ (W)w); |
1844 | clear_pending (EV_A_ (W)w); |
1127 | if (!ev_is_active (w)) |
1845 | if (expect_false (!ev_is_active (w))) |
1128 | return; |
1846 | return; |
1129 | |
1847 | |
|
|
1848 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
1849 | |
1130 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1850 | wlist_del (&anfds[w->fd].head, (WL)w); |
1131 | ev_stop (EV_A_ (W)w); |
1851 | ev_stop (EV_A_ (W)w); |
1132 | |
1852 | |
1133 | fd_change (EV_A_ w->fd); |
1853 | fd_change (EV_A_ w->fd, 1); |
1134 | } |
1854 | } |
1135 | |
1855 | |
1136 | void |
1856 | void noinline |
1137 | ev_timer_start (EV_P_ struct ev_timer *w) |
1857 | ev_timer_start (EV_P_ ev_timer *w) |
1138 | { |
1858 | { |
1139 | if (ev_is_active (w)) |
1859 | if (expect_false (ev_is_active (w))) |
1140 | return; |
1860 | return; |
1141 | |
1861 | |
1142 | ((WT)w)->at += mn_now; |
1862 | ((WT)w)->at += mn_now; |
1143 | |
1863 | |
1144 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1864 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1145 | |
1865 | |
1146 | ev_start (EV_A_ (W)w, ++timercnt); |
1866 | ev_start (EV_A_ (W)w, ++timercnt); |
1147 | array_needsize (timers, timermax, timercnt, ); |
1867 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
1148 | timers [timercnt - 1] = w; |
1868 | timers [timercnt - 1] = (WT)w; |
1149 | upheap ((WT *)timers, timercnt - 1); |
1869 | upheap (timers, timercnt - 1); |
1150 | |
1870 | |
1151 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1871 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
1152 | } |
1872 | } |
1153 | |
1873 | |
1154 | void |
1874 | void noinline |
1155 | ev_timer_stop (EV_P_ struct ev_timer *w) |
1875 | ev_timer_stop (EV_P_ ev_timer *w) |
1156 | { |
1876 | { |
1157 | ev_clear_pending (EV_A_ (W)w); |
1877 | clear_pending (EV_A_ (W)w); |
1158 | if (!ev_is_active (w)) |
1878 | if (expect_false (!ev_is_active (w))) |
1159 | return; |
1879 | return; |
1160 | |
1880 | |
1161 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1881 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
1162 | |
1882 | |
1163 | if (((W)w)->active < timercnt--) |
1883 | { |
|
|
1884 | int active = ((W)w)->active; |
|
|
1885 | |
|
|
1886 | if (expect_true (--active < --timercnt)) |
1164 | { |
1887 | { |
1165 | timers [((W)w)->active - 1] = timers [timercnt]; |
1888 | timers [active] = timers [timercnt]; |
1166 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1889 | adjustheap (timers, timercnt, active); |
1167 | } |
1890 | } |
|
|
1891 | } |
1168 | |
1892 | |
1169 | ((WT)w)->at = w->repeat; |
1893 | ((WT)w)->at -= mn_now; |
1170 | |
1894 | |
1171 | ev_stop (EV_A_ (W)w); |
1895 | ev_stop (EV_A_ (W)w); |
1172 | } |
1896 | } |
1173 | |
1897 | |
1174 | void |
1898 | void noinline |
1175 | ev_timer_again (EV_P_ struct ev_timer *w) |
1899 | ev_timer_again (EV_P_ ev_timer *w) |
1176 | { |
1900 | { |
1177 | if (ev_is_active (w)) |
1901 | if (ev_is_active (w)) |
1178 | { |
1902 | { |
1179 | if (w->repeat) |
1903 | if (w->repeat) |
1180 | { |
1904 | { |
1181 | ((WT)w)->at = mn_now + w->repeat; |
1905 | ((WT)w)->at = mn_now + w->repeat; |
1182 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1906 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
1183 | } |
1907 | } |
1184 | else |
1908 | else |
1185 | ev_timer_stop (EV_A_ w); |
1909 | ev_timer_stop (EV_A_ w); |
1186 | } |
1910 | } |
1187 | else if (w->repeat) |
1911 | else if (w->repeat) |
|
|
1912 | { |
|
|
1913 | w->at = w->repeat; |
1188 | ev_timer_start (EV_A_ w); |
1914 | ev_timer_start (EV_A_ w); |
|
|
1915 | } |
1189 | } |
1916 | } |
1190 | |
1917 | |
1191 | void |
1918 | #if EV_PERIODIC_ENABLE |
|
|
1919 | void noinline |
1192 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1920 | ev_periodic_start (EV_P_ ev_periodic *w) |
1193 | { |
1921 | { |
1194 | if (ev_is_active (w)) |
1922 | if (expect_false (ev_is_active (w))) |
1195 | return; |
1923 | return; |
1196 | |
1924 | |
|
|
1925 | if (w->reschedule_cb) |
|
|
1926 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1927 | else if (w->interval) |
|
|
1928 | { |
1197 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1929 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1198 | |
|
|
1199 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1930 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1200 | if (w->interval) |
|
|
1201 | ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1931 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1932 | } |
|
|
1933 | else |
|
|
1934 | ((WT)w)->at = w->offset; |
1202 | |
1935 | |
1203 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1936 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1204 | array_needsize (periodics, periodicmax, periodiccnt, ); |
1937 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
1205 | periodics [periodiccnt - 1] = w; |
1938 | periodics [periodiccnt - 1] = (WT)w; |
1206 | upheap ((WT *)periodics, periodiccnt - 1); |
1939 | upheap (periodics, periodiccnt - 1); |
1207 | |
1940 | |
1208 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1941 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
1209 | } |
1942 | } |
1210 | |
1943 | |
1211 | void |
1944 | void noinline |
1212 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
1945 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1213 | { |
1946 | { |
1214 | ev_clear_pending (EV_A_ (W)w); |
1947 | clear_pending (EV_A_ (W)w); |
1215 | if (!ev_is_active (w)) |
1948 | if (expect_false (!ev_is_active (w))) |
1216 | return; |
1949 | return; |
1217 | |
1950 | |
1218 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1951 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
1219 | |
1952 | |
1220 | if (((W)w)->active < periodiccnt--) |
1953 | { |
|
|
1954 | int active = ((W)w)->active; |
|
|
1955 | |
|
|
1956 | if (expect_true (--active < --periodiccnt)) |
1221 | { |
1957 | { |
1222 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1958 | periodics [active] = periodics [periodiccnt]; |
1223 | downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1959 | adjustheap (periodics, periodiccnt, active); |
1224 | } |
1960 | } |
|
|
1961 | } |
1225 | |
1962 | |
1226 | ev_stop (EV_A_ (W)w); |
1963 | ev_stop (EV_A_ (W)w); |
1227 | } |
1964 | } |
1228 | |
1965 | |
1229 | void |
1966 | void noinline |
1230 | ev_idle_start (EV_P_ struct ev_idle *w) |
1967 | ev_periodic_again (EV_P_ ev_periodic *w) |
1231 | { |
1968 | { |
1232 | if (ev_is_active (w)) |
1969 | /* TODO: use adjustheap and recalculation */ |
1233 | return; |
|
|
1234 | |
|
|
1235 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1236 | array_needsize (idles, idlemax, idlecnt, ); |
|
|
1237 | idles [idlecnt - 1] = w; |
|
|
1238 | } |
|
|
1239 | |
|
|
1240 | void |
|
|
1241 | ev_idle_stop (EV_P_ struct ev_idle *w) |
|
|
1242 | { |
|
|
1243 | ev_clear_pending (EV_A_ (W)w); |
|
|
1244 | if (ev_is_active (w)) |
|
|
1245 | return; |
|
|
1246 | |
|
|
1247 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
|
|
1248 | ev_stop (EV_A_ (W)w); |
1970 | ev_periodic_stop (EV_A_ w); |
|
|
1971 | ev_periodic_start (EV_A_ w); |
1249 | } |
1972 | } |
1250 | |
1973 | #endif |
1251 | void |
|
|
1252 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
|
|
1253 | { |
|
|
1254 | if (ev_is_active (w)) |
|
|
1255 | return; |
|
|
1256 | |
|
|
1257 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1258 | array_needsize (prepares, preparemax, preparecnt, ); |
|
|
1259 | prepares [preparecnt - 1] = w; |
|
|
1260 | } |
|
|
1261 | |
|
|
1262 | void |
|
|
1263 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
|
|
1264 | { |
|
|
1265 | ev_clear_pending (EV_A_ (W)w); |
|
|
1266 | if (ev_is_active (w)) |
|
|
1267 | return; |
|
|
1268 | |
|
|
1269 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
|
|
1270 | ev_stop (EV_A_ (W)w); |
|
|
1271 | } |
|
|
1272 | |
|
|
1273 | void |
|
|
1274 | ev_check_start (EV_P_ struct ev_check *w) |
|
|
1275 | { |
|
|
1276 | if (ev_is_active (w)) |
|
|
1277 | return; |
|
|
1278 | |
|
|
1279 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1280 | array_needsize (checks, checkmax, checkcnt, ); |
|
|
1281 | checks [checkcnt - 1] = w; |
|
|
1282 | } |
|
|
1283 | |
|
|
1284 | void |
|
|
1285 | ev_check_stop (EV_P_ struct ev_check *w) |
|
|
1286 | { |
|
|
1287 | ev_clear_pending (EV_A_ (W)w); |
|
|
1288 | if (ev_is_active (w)) |
|
|
1289 | return; |
|
|
1290 | |
|
|
1291 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
|
|
1292 | ev_stop (EV_A_ (W)w); |
|
|
1293 | } |
|
|
1294 | |
1974 | |
1295 | #ifndef SA_RESTART |
1975 | #ifndef SA_RESTART |
1296 | # define SA_RESTART 0 |
1976 | # define SA_RESTART 0 |
1297 | #endif |
1977 | #endif |
1298 | |
1978 | |
1299 | void |
1979 | void noinline |
1300 | ev_signal_start (EV_P_ struct ev_signal *w) |
1980 | ev_signal_start (EV_P_ ev_signal *w) |
1301 | { |
1981 | { |
1302 | #if EV_MULTIPLICITY |
1982 | #if EV_MULTIPLICITY |
1303 | assert (("signal watchers are only supported in the default loop", loop == default_loop)); |
1983 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1304 | #endif |
1984 | #endif |
1305 | if (ev_is_active (w)) |
1985 | if (expect_false (ev_is_active (w))) |
1306 | return; |
1986 | return; |
1307 | |
1987 | |
1308 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1988 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1309 | |
1989 | |
|
|
1990 | evpipe_init (EV_A); |
|
|
1991 | |
|
|
1992 | { |
|
|
1993 | #ifndef _WIN32 |
|
|
1994 | sigset_t full, prev; |
|
|
1995 | sigfillset (&full); |
|
|
1996 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
1997 | #endif |
|
|
1998 | |
|
|
1999 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
2000 | |
|
|
2001 | #ifndef _WIN32 |
|
|
2002 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
2003 | #endif |
|
|
2004 | } |
|
|
2005 | |
1310 | ev_start (EV_A_ (W)w, 1); |
2006 | ev_start (EV_A_ (W)w, 1); |
1311 | array_needsize (signals, signalmax, w->signum, signals_init); |
|
|
1312 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
2007 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1313 | |
2008 | |
1314 | if (!((WL)w)->next) |
2009 | if (!((WL)w)->next) |
1315 | { |
2010 | { |
|
|
2011 | #if _WIN32 |
|
|
2012 | signal (w->signum, ev_sighandler); |
|
|
2013 | #else |
1316 | struct sigaction sa; |
2014 | struct sigaction sa; |
1317 | sa.sa_handler = sighandler; |
2015 | sa.sa_handler = ev_sighandler; |
1318 | sigfillset (&sa.sa_mask); |
2016 | sigfillset (&sa.sa_mask); |
1319 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2017 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1320 | sigaction (w->signum, &sa, 0); |
2018 | sigaction (w->signum, &sa, 0); |
|
|
2019 | #endif |
1321 | } |
2020 | } |
1322 | } |
2021 | } |
1323 | |
2022 | |
1324 | void |
2023 | void noinline |
1325 | ev_signal_stop (EV_P_ struct ev_signal *w) |
2024 | ev_signal_stop (EV_P_ ev_signal *w) |
1326 | { |
2025 | { |
1327 | ev_clear_pending (EV_A_ (W)w); |
2026 | clear_pending (EV_A_ (W)w); |
1328 | if (!ev_is_active (w)) |
2027 | if (expect_false (!ev_is_active (w))) |
1329 | return; |
2028 | return; |
1330 | |
2029 | |
1331 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
2030 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1332 | ev_stop (EV_A_ (W)w); |
2031 | ev_stop (EV_A_ (W)w); |
1333 | |
2032 | |
1334 | if (!signals [w->signum - 1].head) |
2033 | if (!signals [w->signum - 1].head) |
1335 | signal (w->signum, SIG_DFL); |
2034 | signal (w->signum, SIG_DFL); |
1336 | } |
2035 | } |
1337 | |
2036 | |
1338 | void |
2037 | void |
1339 | ev_child_start (EV_P_ struct ev_child *w) |
2038 | ev_child_start (EV_P_ ev_child *w) |
1340 | { |
2039 | { |
1341 | #if EV_MULTIPLICITY |
2040 | #if EV_MULTIPLICITY |
1342 | assert (("child watchers are only supported in the default loop", loop == default_loop)); |
2041 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1343 | #endif |
2042 | #endif |
1344 | if (ev_is_active (w)) |
2043 | if (expect_false (ev_is_active (w))) |
1345 | return; |
2044 | return; |
1346 | |
2045 | |
1347 | ev_start (EV_A_ (W)w, 1); |
2046 | ev_start (EV_A_ (W)w, 1); |
1348 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
2047 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1349 | } |
2048 | } |
1350 | |
2049 | |
1351 | void |
2050 | void |
1352 | ev_child_stop (EV_P_ struct ev_child *w) |
2051 | ev_child_stop (EV_P_ ev_child *w) |
1353 | { |
2052 | { |
1354 | ev_clear_pending (EV_A_ (W)w); |
2053 | clear_pending (EV_A_ (W)w); |
1355 | if (ev_is_active (w)) |
2054 | if (expect_false (!ev_is_active (w))) |
1356 | return; |
2055 | return; |
1357 | |
2056 | |
1358 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
2057 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1359 | ev_stop (EV_A_ (W)w); |
2058 | ev_stop (EV_A_ (W)w); |
1360 | } |
2059 | } |
1361 | |
2060 | |
|
|
2061 | #if EV_STAT_ENABLE |
|
|
2062 | |
|
|
2063 | # ifdef _WIN32 |
|
|
2064 | # undef lstat |
|
|
2065 | # define lstat(a,b) _stati64 (a,b) |
|
|
2066 | # endif |
|
|
2067 | |
|
|
2068 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2069 | #define MIN_STAT_INTERVAL 0.1074891 |
|
|
2070 | |
|
|
2071 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
|
|
2072 | |
|
|
2073 | #if EV_USE_INOTIFY |
|
|
2074 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
2075 | |
|
|
2076 | static void noinline |
|
|
2077 | infy_add (EV_P_ ev_stat *w) |
|
|
2078 | { |
|
|
2079 | 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); |
|
|
2080 | |
|
|
2081 | if (w->wd < 0) |
|
|
2082 | { |
|
|
2083 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2084 | |
|
|
2085 | /* monitor some parent directory for speedup hints */ |
|
|
2086 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
|
|
2087 | { |
|
|
2088 | char path [4096]; |
|
|
2089 | strcpy (path, w->path); |
|
|
2090 | |
|
|
2091 | do |
|
|
2092 | { |
|
|
2093 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
|
|
2094 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
|
|
2095 | |
|
|
2096 | char *pend = strrchr (path, '/'); |
|
|
2097 | |
|
|
2098 | if (!pend) |
|
|
2099 | break; /* whoops, no '/', complain to your admin */ |
|
|
2100 | |
|
|
2101 | *pend = 0; |
|
|
2102 | w->wd = inotify_add_watch (fs_fd, path, mask); |
|
|
2103 | } |
|
|
2104 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
|
|
2105 | } |
|
|
2106 | } |
|
|
2107 | else |
|
|
2108 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2109 | |
|
|
2110 | if (w->wd >= 0) |
|
|
2111 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2112 | } |
|
|
2113 | |
|
|
2114 | static void noinline |
|
|
2115 | infy_del (EV_P_ ev_stat *w) |
|
|
2116 | { |
|
|
2117 | int slot; |
|
|
2118 | int wd = w->wd; |
|
|
2119 | |
|
|
2120 | if (wd < 0) |
|
|
2121 | return; |
|
|
2122 | |
|
|
2123 | w->wd = -2; |
|
|
2124 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
|
|
2125 | wlist_del (&fs_hash [slot].head, (WL)w); |
|
|
2126 | |
|
|
2127 | /* remove this watcher, if others are watching it, they will rearm */ |
|
|
2128 | inotify_rm_watch (fs_fd, wd); |
|
|
2129 | } |
|
|
2130 | |
|
|
2131 | static void noinline |
|
|
2132 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
|
|
2133 | { |
|
|
2134 | if (slot < 0) |
|
|
2135 | /* overflow, need to check for all hahs slots */ |
|
|
2136 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2137 | infy_wd (EV_A_ slot, wd, ev); |
|
|
2138 | else |
|
|
2139 | { |
|
|
2140 | WL w_; |
|
|
2141 | |
|
|
2142 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
|
|
2143 | { |
|
|
2144 | ev_stat *w = (ev_stat *)w_; |
|
|
2145 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
|
|
2146 | |
|
|
2147 | if (w->wd == wd || wd == -1) |
|
|
2148 | { |
|
|
2149 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
|
|
2150 | { |
|
|
2151 | w->wd = -1; |
|
|
2152 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2153 | } |
|
|
2154 | |
|
|
2155 | stat_timer_cb (EV_A_ &w->timer, 0); |
|
|
2156 | } |
|
|
2157 | } |
|
|
2158 | } |
|
|
2159 | } |
|
|
2160 | |
|
|
2161 | static void |
|
|
2162 | infy_cb (EV_P_ ev_io *w, int revents) |
|
|
2163 | { |
|
|
2164 | char buf [EV_INOTIFY_BUFSIZE]; |
|
|
2165 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2166 | int ofs; |
|
|
2167 | int len = read (fs_fd, buf, sizeof (buf)); |
|
|
2168 | |
|
|
2169 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
|
|
2170 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
2171 | } |
|
|
2172 | |
|
|
2173 | void inline_size |
|
|
2174 | infy_init (EV_P) |
|
|
2175 | { |
|
|
2176 | if (fs_fd != -2) |
|
|
2177 | return; |
|
|
2178 | |
|
|
2179 | fs_fd = inotify_init (); |
|
|
2180 | |
|
|
2181 | if (fs_fd >= 0) |
|
|
2182 | { |
|
|
2183 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
|
|
2184 | ev_set_priority (&fs_w, EV_MAXPRI); |
|
|
2185 | ev_io_start (EV_A_ &fs_w); |
|
|
2186 | } |
|
|
2187 | } |
|
|
2188 | |
|
|
2189 | void inline_size |
|
|
2190 | infy_fork (EV_P) |
|
|
2191 | { |
|
|
2192 | int slot; |
|
|
2193 | |
|
|
2194 | if (fs_fd < 0) |
|
|
2195 | return; |
|
|
2196 | |
|
|
2197 | close (fs_fd); |
|
|
2198 | fs_fd = inotify_init (); |
|
|
2199 | |
|
|
2200 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2201 | { |
|
|
2202 | WL w_ = fs_hash [slot].head; |
|
|
2203 | fs_hash [slot].head = 0; |
|
|
2204 | |
|
|
2205 | while (w_) |
|
|
2206 | { |
|
|
2207 | ev_stat *w = (ev_stat *)w_; |
|
|
2208 | w_ = w_->next; /* lets us add this watcher */ |
|
|
2209 | |
|
|
2210 | w->wd = -1; |
|
|
2211 | |
|
|
2212 | if (fs_fd >= 0) |
|
|
2213 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2214 | else |
|
|
2215 | ev_timer_start (EV_A_ &w->timer); |
|
|
2216 | } |
|
|
2217 | |
|
|
2218 | } |
|
|
2219 | } |
|
|
2220 | |
|
|
2221 | #endif |
|
|
2222 | |
|
|
2223 | void |
|
|
2224 | ev_stat_stat (EV_P_ ev_stat *w) |
|
|
2225 | { |
|
|
2226 | if (lstat (w->path, &w->attr) < 0) |
|
|
2227 | w->attr.st_nlink = 0; |
|
|
2228 | else if (!w->attr.st_nlink) |
|
|
2229 | w->attr.st_nlink = 1; |
|
|
2230 | } |
|
|
2231 | |
|
|
2232 | static void noinline |
|
|
2233 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
2234 | { |
|
|
2235 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
2236 | |
|
|
2237 | /* we copy this here each the time so that */ |
|
|
2238 | /* prev has the old value when the callback gets invoked */ |
|
|
2239 | w->prev = w->attr; |
|
|
2240 | ev_stat_stat (EV_A_ w); |
|
|
2241 | |
|
|
2242 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
|
|
2243 | if ( |
|
|
2244 | w->prev.st_dev != w->attr.st_dev |
|
|
2245 | || w->prev.st_ino != w->attr.st_ino |
|
|
2246 | || w->prev.st_mode != w->attr.st_mode |
|
|
2247 | || w->prev.st_nlink != w->attr.st_nlink |
|
|
2248 | || w->prev.st_uid != w->attr.st_uid |
|
|
2249 | || w->prev.st_gid != w->attr.st_gid |
|
|
2250 | || w->prev.st_rdev != w->attr.st_rdev |
|
|
2251 | || w->prev.st_size != w->attr.st_size |
|
|
2252 | || w->prev.st_atime != w->attr.st_atime |
|
|
2253 | || w->prev.st_mtime != w->attr.st_mtime |
|
|
2254 | || w->prev.st_ctime != w->attr.st_ctime |
|
|
2255 | ) { |
|
|
2256 | #if EV_USE_INOTIFY |
|
|
2257 | infy_del (EV_A_ w); |
|
|
2258 | infy_add (EV_A_ w); |
|
|
2259 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2260 | #endif |
|
|
2261 | |
|
|
2262 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
2263 | } |
|
|
2264 | } |
|
|
2265 | |
|
|
2266 | void |
|
|
2267 | ev_stat_start (EV_P_ ev_stat *w) |
|
|
2268 | { |
|
|
2269 | if (expect_false (ev_is_active (w))) |
|
|
2270 | return; |
|
|
2271 | |
|
|
2272 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2273 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2274 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2275 | |
|
|
2276 | ev_stat_stat (EV_A_ w); |
|
|
2277 | |
|
|
2278 | if (w->interval < MIN_STAT_INTERVAL) |
|
|
2279 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2280 | |
|
|
2281 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
|
|
2282 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
2283 | |
|
|
2284 | #if EV_USE_INOTIFY |
|
|
2285 | infy_init (EV_A); |
|
|
2286 | |
|
|
2287 | if (fs_fd >= 0) |
|
|
2288 | infy_add (EV_A_ w); |
|
|
2289 | else |
|
|
2290 | #endif |
|
|
2291 | ev_timer_start (EV_A_ &w->timer); |
|
|
2292 | |
|
|
2293 | ev_start (EV_A_ (W)w, 1); |
|
|
2294 | } |
|
|
2295 | |
|
|
2296 | void |
|
|
2297 | ev_stat_stop (EV_P_ ev_stat *w) |
|
|
2298 | { |
|
|
2299 | clear_pending (EV_A_ (W)w); |
|
|
2300 | if (expect_false (!ev_is_active (w))) |
|
|
2301 | return; |
|
|
2302 | |
|
|
2303 | #if EV_USE_INOTIFY |
|
|
2304 | infy_del (EV_A_ w); |
|
|
2305 | #endif |
|
|
2306 | ev_timer_stop (EV_A_ &w->timer); |
|
|
2307 | |
|
|
2308 | ev_stop (EV_A_ (W)w); |
|
|
2309 | } |
|
|
2310 | #endif |
|
|
2311 | |
|
|
2312 | #if EV_IDLE_ENABLE |
|
|
2313 | void |
|
|
2314 | ev_idle_start (EV_P_ ev_idle *w) |
|
|
2315 | { |
|
|
2316 | if (expect_false (ev_is_active (w))) |
|
|
2317 | return; |
|
|
2318 | |
|
|
2319 | pri_adjust (EV_A_ (W)w); |
|
|
2320 | |
|
|
2321 | { |
|
|
2322 | int active = ++idlecnt [ABSPRI (w)]; |
|
|
2323 | |
|
|
2324 | ++idleall; |
|
|
2325 | ev_start (EV_A_ (W)w, active); |
|
|
2326 | |
|
|
2327 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
|
|
2328 | idles [ABSPRI (w)][active - 1] = w; |
|
|
2329 | } |
|
|
2330 | } |
|
|
2331 | |
|
|
2332 | void |
|
|
2333 | ev_idle_stop (EV_P_ ev_idle *w) |
|
|
2334 | { |
|
|
2335 | clear_pending (EV_A_ (W)w); |
|
|
2336 | if (expect_false (!ev_is_active (w))) |
|
|
2337 | return; |
|
|
2338 | |
|
|
2339 | { |
|
|
2340 | int active = ((W)w)->active; |
|
|
2341 | |
|
|
2342 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
|
|
2343 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
|
|
2344 | |
|
|
2345 | ev_stop (EV_A_ (W)w); |
|
|
2346 | --idleall; |
|
|
2347 | } |
|
|
2348 | } |
|
|
2349 | #endif |
|
|
2350 | |
|
|
2351 | void |
|
|
2352 | ev_prepare_start (EV_P_ ev_prepare *w) |
|
|
2353 | { |
|
|
2354 | if (expect_false (ev_is_active (w))) |
|
|
2355 | return; |
|
|
2356 | |
|
|
2357 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
2358 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
|
|
2359 | prepares [preparecnt - 1] = w; |
|
|
2360 | } |
|
|
2361 | |
|
|
2362 | void |
|
|
2363 | ev_prepare_stop (EV_P_ ev_prepare *w) |
|
|
2364 | { |
|
|
2365 | clear_pending (EV_A_ (W)w); |
|
|
2366 | if (expect_false (!ev_is_active (w))) |
|
|
2367 | return; |
|
|
2368 | |
|
|
2369 | { |
|
|
2370 | int active = ((W)w)->active; |
|
|
2371 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
2372 | ((W)prepares [active - 1])->active = active; |
|
|
2373 | } |
|
|
2374 | |
|
|
2375 | ev_stop (EV_A_ (W)w); |
|
|
2376 | } |
|
|
2377 | |
|
|
2378 | void |
|
|
2379 | ev_check_start (EV_P_ ev_check *w) |
|
|
2380 | { |
|
|
2381 | if (expect_false (ev_is_active (w))) |
|
|
2382 | return; |
|
|
2383 | |
|
|
2384 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
2385 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
|
|
2386 | checks [checkcnt - 1] = w; |
|
|
2387 | } |
|
|
2388 | |
|
|
2389 | void |
|
|
2390 | ev_check_stop (EV_P_ ev_check *w) |
|
|
2391 | { |
|
|
2392 | clear_pending (EV_A_ (W)w); |
|
|
2393 | if (expect_false (!ev_is_active (w))) |
|
|
2394 | return; |
|
|
2395 | |
|
|
2396 | { |
|
|
2397 | int active = ((W)w)->active; |
|
|
2398 | checks [active - 1] = checks [--checkcnt]; |
|
|
2399 | ((W)checks [active - 1])->active = active; |
|
|
2400 | } |
|
|
2401 | |
|
|
2402 | ev_stop (EV_A_ (W)w); |
|
|
2403 | } |
|
|
2404 | |
|
|
2405 | #if EV_EMBED_ENABLE |
|
|
2406 | void noinline |
|
|
2407 | ev_embed_sweep (EV_P_ ev_embed *w) |
|
|
2408 | { |
|
|
2409 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2410 | } |
|
|
2411 | |
|
|
2412 | static void |
|
|
2413 | embed_io_cb (EV_P_ ev_io *io, int revents) |
|
|
2414 | { |
|
|
2415 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
|
|
2416 | |
|
|
2417 | if (ev_cb (w)) |
|
|
2418 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
|
|
2419 | else |
|
|
2420 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2421 | } |
|
|
2422 | |
|
|
2423 | static void |
|
|
2424 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
2425 | { |
|
|
2426 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
2427 | |
|
|
2428 | { |
|
|
2429 | struct ev_loop *loop = w->other; |
|
|
2430 | |
|
|
2431 | while (fdchangecnt) |
|
|
2432 | { |
|
|
2433 | fd_reify (EV_A); |
|
|
2434 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2435 | } |
|
|
2436 | } |
|
|
2437 | } |
|
|
2438 | |
|
|
2439 | #if 0 |
|
|
2440 | static void |
|
|
2441 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
2442 | { |
|
|
2443 | ev_idle_stop (EV_A_ idle); |
|
|
2444 | } |
|
|
2445 | #endif |
|
|
2446 | |
|
|
2447 | void |
|
|
2448 | ev_embed_start (EV_P_ ev_embed *w) |
|
|
2449 | { |
|
|
2450 | if (expect_false (ev_is_active (w))) |
|
|
2451 | return; |
|
|
2452 | |
|
|
2453 | { |
|
|
2454 | struct ev_loop *loop = w->other; |
|
|
2455 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
|
|
2456 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
|
|
2457 | } |
|
|
2458 | |
|
|
2459 | ev_set_priority (&w->io, ev_priority (w)); |
|
|
2460 | ev_io_start (EV_A_ &w->io); |
|
|
2461 | |
|
|
2462 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
2463 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
2464 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
2465 | |
|
|
2466 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
2467 | |
|
|
2468 | ev_start (EV_A_ (W)w, 1); |
|
|
2469 | } |
|
|
2470 | |
|
|
2471 | void |
|
|
2472 | ev_embed_stop (EV_P_ ev_embed *w) |
|
|
2473 | { |
|
|
2474 | clear_pending (EV_A_ (W)w); |
|
|
2475 | if (expect_false (!ev_is_active (w))) |
|
|
2476 | return; |
|
|
2477 | |
|
|
2478 | ev_io_stop (EV_A_ &w->io); |
|
|
2479 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
2480 | |
|
|
2481 | ev_stop (EV_A_ (W)w); |
|
|
2482 | } |
|
|
2483 | #endif |
|
|
2484 | |
|
|
2485 | #if EV_FORK_ENABLE |
|
|
2486 | void |
|
|
2487 | ev_fork_start (EV_P_ ev_fork *w) |
|
|
2488 | { |
|
|
2489 | if (expect_false (ev_is_active (w))) |
|
|
2490 | return; |
|
|
2491 | |
|
|
2492 | ev_start (EV_A_ (W)w, ++forkcnt); |
|
|
2493 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
|
|
2494 | forks [forkcnt - 1] = w; |
|
|
2495 | } |
|
|
2496 | |
|
|
2497 | void |
|
|
2498 | ev_fork_stop (EV_P_ ev_fork *w) |
|
|
2499 | { |
|
|
2500 | clear_pending (EV_A_ (W)w); |
|
|
2501 | if (expect_false (!ev_is_active (w))) |
|
|
2502 | return; |
|
|
2503 | |
|
|
2504 | { |
|
|
2505 | int active = ((W)w)->active; |
|
|
2506 | forks [active - 1] = forks [--forkcnt]; |
|
|
2507 | ((W)forks [active - 1])->active = active; |
|
|
2508 | } |
|
|
2509 | |
|
|
2510 | ev_stop (EV_A_ (W)w); |
|
|
2511 | } |
|
|
2512 | #endif |
|
|
2513 | |
|
|
2514 | #if EV_ASYNC_ENABLE |
|
|
2515 | void |
|
|
2516 | ev_async_start (EV_P_ ev_async *w) |
|
|
2517 | { |
|
|
2518 | if (expect_false (ev_is_active (w))) |
|
|
2519 | return; |
|
|
2520 | |
|
|
2521 | evpipe_init (EV_A); |
|
|
2522 | |
|
|
2523 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
2524 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
2525 | asyncs [asynccnt - 1] = w; |
|
|
2526 | } |
|
|
2527 | |
|
|
2528 | void |
|
|
2529 | ev_async_stop (EV_P_ ev_async *w) |
|
|
2530 | { |
|
|
2531 | clear_pending (EV_A_ (W)w); |
|
|
2532 | if (expect_false (!ev_is_active (w))) |
|
|
2533 | return; |
|
|
2534 | |
|
|
2535 | { |
|
|
2536 | int active = ((W)w)->active; |
|
|
2537 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
2538 | ((W)asyncs [active - 1])->active = active; |
|
|
2539 | } |
|
|
2540 | |
|
|
2541 | ev_stop (EV_A_ (W)w); |
|
|
2542 | } |
|
|
2543 | |
|
|
2544 | void |
|
|
2545 | ev_async_send (EV_P_ ev_async *w) |
|
|
2546 | { |
|
|
2547 | w->sent = 1; |
|
|
2548 | evpipe_write (EV_A_ &gotasync); |
|
|
2549 | } |
|
|
2550 | #endif |
|
|
2551 | |
1362 | /*****************************************************************************/ |
2552 | /*****************************************************************************/ |
1363 | |
2553 | |
1364 | struct ev_once |
2554 | struct ev_once |
1365 | { |
2555 | { |
1366 | struct ev_io io; |
2556 | ev_io io; |
1367 | struct ev_timer to; |
2557 | ev_timer to; |
1368 | void (*cb)(int revents, void *arg); |
2558 | void (*cb)(int revents, void *arg); |
1369 | void *arg; |
2559 | void *arg; |
1370 | }; |
2560 | }; |
1371 | |
2561 | |
1372 | static void |
2562 | static void |
… | |
… | |
1375 | void (*cb)(int revents, void *arg) = once->cb; |
2565 | void (*cb)(int revents, void *arg) = once->cb; |
1376 | void *arg = once->arg; |
2566 | void *arg = once->arg; |
1377 | |
2567 | |
1378 | ev_io_stop (EV_A_ &once->io); |
2568 | ev_io_stop (EV_A_ &once->io); |
1379 | ev_timer_stop (EV_A_ &once->to); |
2569 | ev_timer_stop (EV_A_ &once->to); |
1380 | free (once); |
2570 | ev_free (once); |
1381 | |
2571 | |
1382 | cb (revents, arg); |
2572 | cb (revents, arg); |
1383 | } |
2573 | } |
1384 | |
2574 | |
1385 | static void |
2575 | static void |
1386 | once_cb_io (EV_P_ struct ev_io *w, int revents) |
2576 | once_cb_io (EV_P_ ev_io *w, int revents) |
1387 | { |
2577 | { |
1388 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
2578 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1389 | } |
2579 | } |
1390 | |
2580 | |
1391 | static void |
2581 | static void |
1392 | once_cb_to (EV_P_ struct ev_timer *w, int revents) |
2582 | once_cb_to (EV_P_ ev_timer *w, int revents) |
1393 | { |
2583 | { |
1394 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
2584 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1395 | } |
2585 | } |
1396 | |
2586 | |
1397 | void |
2587 | void |
1398 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2588 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1399 | { |
2589 | { |
1400 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
2590 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1401 | |
2591 | |
1402 | if (!once) |
2592 | if (expect_false (!once)) |
|
|
2593 | { |
1403 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
2594 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1404 | else |
2595 | return; |
1405 | { |
2596 | } |
|
|
2597 | |
1406 | once->cb = cb; |
2598 | once->cb = cb; |
1407 | once->arg = arg; |
2599 | once->arg = arg; |
1408 | |
2600 | |
1409 | ev_watcher_init (&once->io, once_cb_io); |
2601 | ev_init (&once->io, once_cb_io); |
1410 | if (fd >= 0) |
2602 | if (fd >= 0) |
1411 | { |
2603 | { |
1412 | ev_io_set (&once->io, fd, events); |
2604 | ev_io_set (&once->io, fd, events); |
1413 | ev_io_start (EV_A_ &once->io); |
2605 | ev_io_start (EV_A_ &once->io); |
1414 | } |
2606 | } |
1415 | |
2607 | |
1416 | ev_watcher_init (&once->to, once_cb_to); |
2608 | ev_init (&once->to, once_cb_to); |
1417 | if (timeout >= 0.) |
2609 | if (timeout >= 0.) |
1418 | { |
2610 | { |
1419 | ev_timer_set (&once->to, timeout, 0.); |
2611 | ev_timer_set (&once->to, timeout, 0.); |
1420 | ev_timer_start (EV_A_ &once->to); |
2612 | ev_timer_start (EV_A_ &once->to); |
1421 | } |
|
|
1422 | } |
2613 | } |
1423 | } |
2614 | } |
1424 | |
2615 | |
|
|
2616 | #if EV_MULTIPLICITY |
|
|
2617 | #include "ev_wrap.h" |
|
|
2618 | #endif |
|
|
2619 | |
|
|
2620 | #ifdef __cplusplus |
|
|
2621 | } |
|
|
2622 | #endif |
|
|
2623 | |