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 <fcntl.h> |
136 | #include <fcntl.h> |
… | |
… | |
64 | #include <assert.h> |
141 | #include <assert.h> |
65 | #include <errno.h> |
142 | #include <errno.h> |
66 | #include <sys/types.h> |
143 | #include <sys/types.h> |
67 | #include <time.h> |
144 | #include <time.h> |
68 | |
145 | |
69 | #ifndef PERL |
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70 | # include <signal.h> |
146 | #include <signal.h> |
71 | #endif |
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72 | |
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 | |
73 | #ifndef WIN32 |
154 | #ifndef _WIN32 |
74 | # include <unistd.h> |
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75 | # include <sys/time.h> |
155 | # include <sys/time.h> |
76 | # 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 |
77 | #endif |
163 | # endif |
78 | /**/ |
164 | #endif |
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165 | |
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166 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
79 | |
167 | |
80 | #ifndef EV_USE_MONOTONIC |
168 | #ifndef EV_USE_MONOTONIC |
81 | # 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 |
82 | #endif |
178 | #endif |
83 | |
179 | |
84 | #ifndef EV_USE_SELECT |
180 | #ifndef EV_USE_SELECT |
85 | # define EV_USE_SELECT 1 |
181 | # define EV_USE_SELECT 1 |
86 | #endif |
182 | #endif |
87 | |
183 | |
88 | #ifndef EV_USE_POLL |
184 | #ifndef EV_USE_POLL |
89 | # 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 |
90 | #endif |
190 | #endif |
91 | |
191 | |
92 | #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 |
93 | # define EV_USE_EPOLL 0 |
196 | # define EV_USE_EPOLL 0 |
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197 | # endif |
94 | #endif |
198 | #endif |
95 | |
199 | |
96 | #ifndef EV_USE_KQUEUE |
200 | #ifndef EV_USE_KQUEUE |
97 | # define EV_USE_KQUEUE 0 |
201 | # define EV_USE_KQUEUE 0 |
98 | #endif |
202 | #endif |
99 | |
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 | |
100 | #ifndef EV_USE_WIN32 |
208 | #ifndef EV_USE_INOTIFY |
101 | # ifdef WIN32 |
209 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
102 | # define EV_USE_WIN32 0 /* it does not exist, use select */ |
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103 | # undef EV_USE_SELECT |
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104 | # define EV_USE_SELECT 1 |
210 | # define EV_USE_INOTIFY 1 |
105 | # else |
211 | # else |
106 | # define EV_USE_WIN32 0 |
212 | # define EV_USE_INOTIFY 0 |
107 | # endif |
213 | # endif |
108 | #endif |
214 | #endif |
109 | |
215 | |
110 | #ifndef EV_USE_REALTIME |
216 | #ifndef EV_PID_HASHSIZE |
111 | # 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 |
112 | #endif |
221 | # endif |
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222 | #endif |
113 | |
223 | |
114 | /**/ |
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 */ |
115 | |
241 | |
116 | #ifndef CLOCK_MONOTONIC |
242 | #ifndef CLOCK_MONOTONIC |
117 | # undef EV_USE_MONOTONIC |
243 | # undef EV_USE_MONOTONIC |
118 | # define EV_USE_MONOTONIC 0 |
244 | # define EV_USE_MONOTONIC 0 |
119 | #endif |
245 | #endif |
… | |
… | |
121 | #ifndef CLOCK_REALTIME |
247 | #ifndef CLOCK_REALTIME |
122 | # undef EV_USE_REALTIME |
248 | # undef EV_USE_REALTIME |
123 | # define EV_USE_REALTIME 0 |
249 | # define EV_USE_REALTIME 0 |
124 | #endif |
250 | #endif |
125 | |
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 | int eventfd (unsigned int initval, int flags); |
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274 | #endif |
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275 | |
126 | /**/ |
276 | /**/ |
127 | |
277 | |
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278 | /* |
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279 | * This is used to avoid floating point rounding problems. |
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280 | * It is added to ev_rt_now when scheduling periodics |
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281 | * to ensure progress, time-wise, even when rounding |
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282 | * errors are against us. |
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283 | * This value is good at least till the year 4000. |
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284 | * Better solutions welcome. |
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285 | */ |
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286 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
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287 | |
128 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
288 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
129 | #define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */ |
289 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
130 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
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131 | /*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ |
290 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
132 | |
291 | |
133 | #include "ev.h" |
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134 | |
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135 | #if __GNUC__ >= 3 |
292 | #if __GNUC__ >= 4 |
136 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
293 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
137 | # define inline inline |
294 | # define noinline __attribute__ ((noinline)) |
138 | #else |
295 | #else |
139 | # define expect(expr,value) (expr) |
296 | # define expect(expr,value) (expr) |
140 | # define inline static |
297 | # define noinline |
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298 | # if __STDC_VERSION__ < 199901L |
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299 | # define inline |
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300 | # endif |
141 | #endif |
301 | #endif |
142 | |
302 | |
143 | #define expect_false(expr) expect ((expr) != 0, 0) |
303 | #define expect_false(expr) expect ((expr) != 0, 0) |
144 | #define expect_true(expr) expect ((expr) != 0, 1) |
304 | #define expect_true(expr) expect ((expr) != 0, 1) |
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305 | #define inline_size static inline |
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306 | |
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307 | #if EV_MINIMAL |
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308 | # define inline_speed static noinline |
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309 | #else |
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310 | # define inline_speed static inline |
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311 | #endif |
145 | |
312 | |
146 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
313 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
147 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
314 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
148 | |
315 | |
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316 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
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317 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
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318 | |
149 | typedef struct ev_watcher *W; |
319 | typedef ev_watcher *W; |
150 | typedef struct ev_watcher_list *WL; |
320 | typedef ev_watcher_list *WL; |
151 | typedef struct ev_watcher_time *WT; |
321 | typedef ev_watcher_time *WT; |
152 | |
322 | |
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323 | #if EV_USE_MONOTONIC |
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324 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
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325 | /* giving it a reasonably high chance of working on typical architetcures */ |
153 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
326 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
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327 | #endif |
154 | |
328 | |
155 | #if WIN32 |
329 | #ifdef _WIN32 |
156 | /* note: the comment below could not be substantiated, but what would I care */ |
330 | # include "ev_win32.c" |
157 | /* MSDN says this is required to handle SIGFPE */ |
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158 | volatile double SIGFPE_REQ = 0.0f; |
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159 | #endif |
331 | #endif |
160 | |
332 | |
161 | /*****************************************************************************/ |
333 | /*****************************************************************************/ |
162 | |
334 | |
163 | static void (*syserr_cb)(const char *msg); |
335 | static void (*syserr_cb)(const char *msg); |
164 | |
336 | |
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337 | void |
165 | void ev_set_syserr_cb (void (*cb)(const char *msg)) |
338 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
166 | { |
339 | { |
167 | syserr_cb = cb; |
340 | syserr_cb = cb; |
168 | } |
341 | } |
169 | |
342 | |
170 | static void |
343 | static void noinline |
171 | syserr (const char *msg) |
344 | syserr (const char *msg) |
172 | { |
345 | { |
173 | if (!msg) |
346 | if (!msg) |
174 | msg = "(libev) system error"; |
347 | msg = "(libev) system error"; |
175 | |
348 | |
… | |
… | |
182 | } |
355 | } |
183 | } |
356 | } |
184 | |
357 | |
185 | static void *(*alloc)(void *ptr, long size); |
358 | static void *(*alloc)(void *ptr, long size); |
186 | |
359 | |
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360 | void |
187 | void ev_set_allocator (void *(*cb)(void *ptr, long size)) |
361 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
188 | { |
362 | { |
189 | alloc = cb; |
363 | alloc = cb; |
190 | } |
364 | } |
191 | |
365 | |
192 | static void * |
366 | inline_speed void * |
193 | ev_realloc (void *ptr, long size) |
367 | ev_realloc (void *ptr, long size) |
194 | { |
368 | { |
195 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
369 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
196 | |
370 | |
197 | if (!ptr && size) |
371 | if (!ptr && size) |
… | |
… | |
211 | typedef struct |
385 | typedef struct |
212 | { |
386 | { |
213 | WL head; |
387 | WL head; |
214 | unsigned char events; |
388 | unsigned char events; |
215 | unsigned char reify; |
389 | unsigned char reify; |
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390 | #if EV_SELECT_IS_WINSOCKET |
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391 | SOCKET handle; |
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392 | #endif |
216 | } ANFD; |
393 | } ANFD; |
217 | |
394 | |
218 | typedef struct |
395 | typedef struct |
219 | { |
396 | { |
220 | W w; |
397 | W w; |
221 | int events; |
398 | int events; |
222 | } ANPENDING; |
399 | } ANPENDING; |
223 | |
400 | |
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401 | #if EV_USE_INOTIFY |
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402 | typedef struct |
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403 | { |
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404 | WL head; |
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|
405 | } ANFS; |
|
|
406 | #endif |
|
|
407 | |
224 | #if EV_MULTIPLICITY |
408 | #if EV_MULTIPLICITY |
225 | |
409 | |
226 | struct ev_loop |
410 | struct ev_loop |
227 | { |
411 | { |
|
|
412 | ev_tstamp ev_rt_now; |
|
|
413 | #define ev_rt_now ((loop)->ev_rt_now) |
228 | # define VAR(name,decl) decl; |
414 | #define VAR(name,decl) decl; |
229 | # include "ev_vars.h" |
415 | #include "ev_vars.h" |
230 | }; |
|
|
231 | # undef VAR |
416 | #undef VAR |
|
|
417 | }; |
232 | # include "ev_wrap.h" |
418 | #include "ev_wrap.h" |
|
|
419 | |
|
|
420 | static struct ev_loop default_loop_struct; |
|
|
421 | struct ev_loop *ev_default_loop_ptr; |
233 | |
422 | |
234 | #else |
423 | #else |
235 | |
424 | |
|
|
425 | ev_tstamp ev_rt_now; |
236 | # define VAR(name,decl) static decl; |
426 | #define VAR(name,decl) static decl; |
237 | # include "ev_vars.h" |
427 | #include "ev_vars.h" |
238 | # undef VAR |
428 | #undef VAR |
|
|
429 | |
|
|
430 | static int ev_default_loop_ptr; |
239 | |
431 | |
240 | #endif |
432 | #endif |
241 | |
433 | |
242 | /*****************************************************************************/ |
434 | /*****************************************************************************/ |
243 | |
435 | |
244 | inline ev_tstamp |
436 | ev_tstamp |
245 | ev_time (void) |
437 | ev_time (void) |
246 | { |
438 | { |
247 | #if EV_USE_REALTIME |
439 | #if EV_USE_REALTIME |
248 | struct timespec ts; |
440 | struct timespec ts; |
249 | clock_gettime (CLOCK_REALTIME, &ts); |
441 | clock_gettime (CLOCK_REALTIME, &ts); |
… | |
… | |
253 | gettimeofday (&tv, 0); |
445 | gettimeofday (&tv, 0); |
254 | return tv.tv_sec + tv.tv_usec * 1e-6; |
446 | return tv.tv_sec + tv.tv_usec * 1e-6; |
255 | #endif |
447 | #endif |
256 | } |
448 | } |
257 | |
449 | |
258 | inline ev_tstamp |
450 | ev_tstamp inline_size |
259 | get_clock (void) |
451 | get_clock (void) |
260 | { |
452 | { |
261 | #if EV_USE_MONOTONIC |
453 | #if EV_USE_MONOTONIC |
262 | if (expect_true (have_monotonic)) |
454 | if (expect_true (have_monotonic)) |
263 | { |
455 | { |
… | |
… | |
268 | #endif |
460 | #endif |
269 | |
461 | |
270 | return ev_time (); |
462 | return ev_time (); |
271 | } |
463 | } |
272 | |
464 | |
|
|
465 | #if EV_MULTIPLICITY |
273 | ev_tstamp |
466 | ev_tstamp |
274 | ev_now (EV_P) |
467 | ev_now (EV_P) |
275 | { |
468 | { |
276 | return rt_now; |
469 | return ev_rt_now; |
277 | } |
470 | } |
|
|
471 | #endif |
278 | |
472 | |
279 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
473 | void |
|
|
474 | ev_sleep (ev_tstamp delay) |
|
|
475 | { |
|
|
476 | if (delay > 0.) |
|
|
477 | { |
|
|
478 | #if EV_USE_NANOSLEEP |
|
|
479 | struct timespec ts; |
280 | |
480 | |
|
|
481 | ts.tv_sec = (time_t)delay; |
|
|
482 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
483 | |
|
|
484 | nanosleep (&ts, 0); |
|
|
485 | #elif defined(_WIN32) |
|
|
486 | Sleep ((unsigned long)(delay * 1e3)); |
|
|
487 | #else |
|
|
488 | struct timeval tv; |
|
|
489 | |
|
|
490 | tv.tv_sec = (time_t)delay; |
|
|
491 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
492 | |
|
|
493 | select (0, 0, 0, 0, &tv); |
|
|
494 | #endif |
|
|
495 | } |
|
|
496 | } |
|
|
497 | |
|
|
498 | /*****************************************************************************/ |
|
|
499 | |
|
|
500 | int inline_size |
|
|
501 | array_nextsize (int elem, int cur, int cnt) |
|
|
502 | { |
|
|
503 | int ncur = cur + 1; |
|
|
504 | |
|
|
505 | do |
|
|
506 | ncur <<= 1; |
|
|
507 | while (cnt > ncur); |
|
|
508 | |
|
|
509 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
|
|
510 | if (elem * ncur > 4096) |
|
|
511 | { |
|
|
512 | ncur *= elem; |
|
|
513 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
|
|
514 | ncur = ncur - sizeof (void *) * 4; |
|
|
515 | ncur /= elem; |
|
|
516 | } |
|
|
517 | |
|
|
518 | return ncur; |
|
|
519 | } |
|
|
520 | |
|
|
521 | static noinline void * |
|
|
522 | array_realloc (int elem, void *base, int *cur, int cnt) |
|
|
523 | { |
|
|
524 | *cur = array_nextsize (elem, *cur, cnt); |
|
|
525 | return ev_realloc (base, elem * *cur); |
|
|
526 | } |
|
|
527 | |
281 | #define array_needsize(base,cur,cnt,init) \ |
528 | #define array_needsize(type,base,cur,cnt,init) \ |
282 | if (expect_false ((cnt) > cur)) \ |
529 | if (expect_false ((cnt) > (cur))) \ |
283 | { \ |
530 | { \ |
284 | int newcnt = cur; \ |
531 | int ocur_ = (cur); \ |
285 | do \ |
532 | (base) = (type *)array_realloc \ |
286 | { \ |
533 | (sizeof (type), (base), &(cur), (cnt)); \ |
287 | newcnt = array_roundsize (base, newcnt << 1); \ |
534 | init ((base) + (ocur_), (cur) - ocur_); \ |
288 | } \ |
|
|
289 | while ((cnt) > newcnt); \ |
|
|
290 | \ |
|
|
291 | base = ev_realloc (base, sizeof (*base) * (newcnt)); \ |
|
|
292 | init (base + cur, newcnt - cur); \ |
|
|
293 | cur = newcnt; \ |
|
|
294 | } |
535 | } |
295 | |
536 | |
|
|
537 | #if 0 |
296 | #define array_slim(stem) \ |
538 | #define array_slim(type,stem) \ |
297 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
539 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
298 | { \ |
540 | { \ |
299 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
541 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
300 | base = ev_realloc (base, sizeof (*base) * (stem ## max)); \ |
542 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
301 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
543 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
302 | } |
544 | } |
303 | |
545 | #endif |
304 | /* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */ |
|
|
305 | /* bringing us everlasting joy in form of stupid extra macros that are not required in C */ |
|
|
306 | #define array_free_microshit(stem) \ |
|
|
307 | ev_free (stem ## s); stem ## cnt = stem ## max = 0; |
|
|
308 | |
546 | |
309 | #define array_free(stem, idx) \ |
547 | #define array_free(stem, idx) \ |
310 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
548 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
311 | |
549 | |
312 | /*****************************************************************************/ |
550 | /*****************************************************************************/ |
313 | |
551 | |
314 | static void |
552 | void noinline |
|
|
553 | ev_feed_event (EV_P_ void *w, int revents) |
|
|
554 | { |
|
|
555 | W w_ = (W)w; |
|
|
556 | int pri = ABSPRI (w_); |
|
|
557 | |
|
|
558 | if (expect_false (w_->pending)) |
|
|
559 | pendings [pri][w_->pending - 1].events |= revents; |
|
|
560 | else |
|
|
561 | { |
|
|
562 | w_->pending = ++pendingcnt [pri]; |
|
|
563 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
|
|
564 | pendings [pri][w_->pending - 1].w = w_; |
|
|
565 | pendings [pri][w_->pending - 1].events = revents; |
|
|
566 | } |
|
|
567 | } |
|
|
568 | |
|
|
569 | void inline_speed |
|
|
570 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
571 | { |
|
|
572 | int i; |
|
|
573 | |
|
|
574 | for (i = 0; i < eventcnt; ++i) |
|
|
575 | ev_feed_event (EV_A_ events [i], type); |
|
|
576 | } |
|
|
577 | |
|
|
578 | /*****************************************************************************/ |
|
|
579 | |
|
|
580 | void inline_size |
315 | anfds_init (ANFD *base, int count) |
581 | anfds_init (ANFD *base, int count) |
316 | { |
582 | { |
317 | while (count--) |
583 | while (count--) |
318 | { |
584 | { |
319 | base->head = 0; |
585 | base->head = 0; |
… | |
… | |
322 | |
588 | |
323 | ++base; |
589 | ++base; |
324 | } |
590 | } |
325 | } |
591 | } |
326 | |
592 | |
327 | static void |
593 | void inline_speed |
328 | event (EV_P_ W w, int events) |
|
|
329 | { |
|
|
330 | if (w->pending) |
|
|
331 | { |
|
|
332 | pendings [ABSPRI (w)][w->pending - 1].events |= events; |
|
|
333 | return; |
|
|
334 | } |
|
|
335 | |
|
|
336 | w->pending = ++pendingcnt [ABSPRI (w)]; |
|
|
337 | array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], (void)); |
|
|
338 | pendings [ABSPRI (w)][w->pending - 1].w = w; |
|
|
339 | pendings [ABSPRI (w)][w->pending - 1].events = events; |
|
|
340 | } |
|
|
341 | |
|
|
342 | static void |
|
|
343 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
344 | { |
|
|
345 | int i; |
|
|
346 | |
|
|
347 | for (i = 0; i < eventcnt; ++i) |
|
|
348 | event (EV_A_ events [i], type); |
|
|
349 | } |
|
|
350 | |
|
|
351 | static void |
|
|
352 | fd_event (EV_P_ int fd, int events) |
594 | fd_event (EV_P_ int fd, int revents) |
353 | { |
595 | { |
354 | ANFD *anfd = anfds + fd; |
596 | ANFD *anfd = anfds + fd; |
355 | struct ev_io *w; |
597 | ev_io *w; |
356 | |
598 | |
357 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
599 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
358 | { |
600 | { |
359 | int ev = w->events & events; |
601 | int ev = w->events & revents; |
360 | |
602 | |
361 | if (ev) |
603 | if (ev) |
362 | event (EV_A_ (W)w, ev); |
604 | ev_feed_event (EV_A_ (W)w, ev); |
363 | } |
605 | } |
364 | } |
606 | } |
365 | |
607 | |
366 | /*****************************************************************************/ |
608 | void |
|
|
609 | ev_feed_fd_event (EV_P_ int fd, int revents) |
|
|
610 | { |
|
|
611 | if (fd >= 0 && fd < anfdmax) |
|
|
612 | fd_event (EV_A_ fd, revents); |
|
|
613 | } |
367 | |
614 | |
368 | static void |
615 | void inline_size |
369 | fd_reify (EV_P) |
616 | fd_reify (EV_P) |
370 | { |
617 | { |
371 | int i; |
618 | int i; |
372 | |
619 | |
373 | for (i = 0; i < fdchangecnt; ++i) |
620 | for (i = 0; i < fdchangecnt; ++i) |
374 | { |
621 | { |
375 | int fd = fdchanges [i]; |
622 | int fd = fdchanges [i]; |
376 | ANFD *anfd = anfds + fd; |
623 | ANFD *anfd = anfds + fd; |
377 | struct ev_io *w; |
624 | ev_io *w; |
378 | |
625 | |
379 | int events = 0; |
626 | unsigned char events = 0; |
380 | |
627 | |
381 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
628 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
382 | events |= w->events; |
629 | events |= (unsigned char)w->events; |
383 | |
630 | |
|
|
631 | #if EV_SELECT_IS_WINSOCKET |
|
|
632 | if (events) |
|
|
633 | { |
|
|
634 | unsigned long argp; |
|
|
635 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
636 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
637 | #else |
|
|
638 | anfd->handle = _get_osfhandle (fd); |
|
|
639 | #endif |
|
|
640 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
|
|
641 | } |
|
|
642 | #endif |
|
|
643 | |
|
|
644 | { |
|
|
645 | unsigned char o_events = anfd->events; |
|
|
646 | unsigned char o_reify = anfd->reify; |
|
|
647 | |
384 | anfd->reify = 0; |
648 | anfd->reify = 0; |
385 | |
|
|
386 | method_modify (EV_A_ fd, anfd->events, events); |
|
|
387 | anfd->events = events; |
649 | anfd->events = events; |
|
|
650 | |
|
|
651 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
652 | backend_modify (EV_A_ fd, o_events, events); |
|
|
653 | } |
388 | } |
654 | } |
389 | |
655 | |
390 | fdchangecnt = 0; |
656 | fdchangecnt = 0; |
391 | } |
657 | } |
392 | |
658 | |
393 | static void |
659 | void inline_size |
394 | fd_change (EV_P_ int fd) |
660 | fd_change (EV_P_ int fd, int flags) |
395 | { |
661 | { |
396 | if (anfds [fd].reify) |
662 | unsigned char reify = anfds [fd].reify; |
397 | return; |
|
|
398 | |
|
|
399 | anfds [fd].reify = 1; |
663 | anfds [fd].reify |= flags; |
400 | |
664 | |
|
|
665 | if (expect_true (!reify)) |
|
|
666 | { |
401 | ++fdchangecnt; |
667 | ++fdchangecnt; |
402 | array_needsize (fdchanges, fdchangemax, fdchangecnt, (void)); |
668 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
403 | fdchanges [fdchangecnt - 1] = fd; |
669 | fdchanges [fdchangecnt - 1] = fd; |
|
|
670 | } |
404 | } |
671 | } |
405 | |
672 | |
406 | static void |
673 | void inline_speed |
407 | fd_kill (EV_P_ int fd) |
674 | fd_kill (EV_P_ int fd) |
408 | { |
675 | { |
409 | struct ev_io *w; |
676 | ev_io *w; |
410 | |
677 | |
411 | while ((w = (struct ev_io *)anfds [fd].head)) |
678 | while ((w = (ev_io *)anfds [fd].head)) |
412 | { |
679 | { |
413 | ev_io_stop (EV_A_ w); |
680 | ev_io_stop (EV_A_ w); |
414 | event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
681 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
415 | } |
682 | } |
416 | } |
683 | } |
417 | |
684 | |
418 | static int |
685 | int inline_size |
419 | fd_valid (int fd) |
686 | fd_valid (int fd) |
420 | { |
687 | { |
421 | #ifdef WIN32 |
688 | #ifdef _WIN32 |
422 | return !!win32_get_osfhandle (fd); |
689 | return _get_osfhandle (fd) != -1; |
423 | #else |
690 | #else |
424 | return fcntl (fd, F_GETFD) != -1; |
691 | return fcntl (fd, F_GETFD) != -1; |
425 | #endif |
692 | #endif |
426 | } |
693 | } |
427 | |
694 | |
428 | /* called on EBADF to verify fds */ |
695 | /* called on EBADF to verify fds */ |
429 | static void |
696 | static void noinline |
430 | fd_ebadf (EV_P) |
697 | fd_ebadf (EV_P) |
431 | { |
698 | { |
432 | int fd; |
699 | int fd; |
433 | |
700 | |
434 | for (fd = 0; fd < anfdmax; ++fd) |
701 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
436 | if (!fd_valid (fd) == -1 && errno == EBADF) |
703 | if (!fd_valid (fd) == -1 && errno == EBADF) |
437 | fd_kill (EV_A_ fd); |
704 | fd_kill (EV_A_ fd); |
438 | } |
705 | } |
439 | |
706 | |
440 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
707 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
441 | static void |
708 | static void noinline |
442 | fd_enomem (EV_P) |
709 | fd_enomem (EV_P) |
443 | { |
710 | { |
444 | int fd; |
711 | int fd; |
445 | |
712 | |
446 | for (fd = anfdmax; fd--; ) |
713 | for (fd = anfdmax; fd--; ) |
… | |
… | |
449 | fd_kill (EV_A_ fd); |
716 | fd_kill (EV_A_ fd); |
450 | return; |
717 | return; |
451 | } |
718 | } |
452 | } |
719 | } |
453 | |
720 | |
454 | /* usually called after fork if method needs to re-arm all fds from scratch */ |
721 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
455 | static void |
722 | static void noinline |
456 | fd_rearm_all (EV_P) |
723 | fd_rearm_all (EV_P) |
457 | { |
724 | { |
458 | int fd; |
725 | int fd; |
459 | |
726 | |
460 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
461 | for (fd = 0; fd < anfdmax; ++fd) |
727 | for (fd = 0; fd < anfdmax; ++fd) |
462 | if (anfds [fd].events) |
728 | if (anfds [fd].events) |
463 | { |
729 | { |
464 | anfds [fd].events = 0; |
730 | anfds [fd].events = 0; |
465 | fd_change (EV_A_ fd); |
731 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
466 | } |
732 | } |
467 | } |
733 | } |
468 | |
734 | |
469 | /*****************************************************************************/ |
735 | /*****************************************************************************/ |
470 | |
736 | |
471 | static void |
737 | void inline_speed |
472 | upheap (WT *heap, int k) |
738 | upheap (WT *heap, int k) |
473 | { |
739 | { |
474 | WT w = heap [k]; |
740 | WT w = heap [k]; |
475 | |
741 | |
476 | while (k && heap [k >> 1]->at > w->at) |
742 | while (k) |
477 | { |
743 | { |
|
|
744 | int p = (k - 1) >> 1; |
|
|
745 | |
|
|
746 | if (heap [p]->at <= w->at) |
|
|
747 | break; |
|
|
748 | |
478 | heap [k] = heap [k >> 1]; |
749 | heap [k] = heap [p]; |
479 | ((W)heap [k])->active = k + 1; |
750 | ((W)heap [k])->active = k + 1; |
480 | k >>= 1; |
751 | k = p; |
481 | } |
752 | } |
482 | |
753 | |
483 | heap [k] = w; |
754 | heap [k] = w; |
484 | ((W)heap [k])->active = k + 1; |
755 | ((W)heap [k])->active = k + 1; |
485 | |
|
|
486 | } |
756 | } |
487 | |
757 | |
488 | static void |
758 | void inline_speed |
489 | downheap (WT *heap, int N, int k) |
759 | downheap (WT *heap, int N, int k) |
490 | { |
760 | { |
491 | WT w = heap [k]; |
761 | WT w = heap [k]; |
492 | |
762 | |
493 | while (k < (N >> 1)) |
763 | for (;;) |
494 | { |
764 | { |
495 | int j = k << 1; |
765 | int c = (k << 1) + 1; |
496 | |
766 | |
497 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
767 | if (c >= N) |
498 | ++j; |
|
|
499 | |
|
|
500 | if (w->at <= heap [j]->at) |
|
|
501 | break; |
768 | break; |
502 | |
769 | |
|
|
770 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
771 | ? 1 : 0; |
|
|
772 | |
|
|
773 | if (w->at <= heap [c]->at) |
|
|
774 | break; |
|
|
775 | |
503 | heap [k] = heap [j]; |
776 | heap [k] = heap [c]; |
504 | ((W)heap [k])->active = k + 1; |
777 | ((W)heap [k])->active = k + 1; |
|
|
778 | |
505 | k = j; |
779 | k = c; |
506 | } |
780 | } |
507 | |
781 | |
508 | heap [k] = w; |
782 | heap [k] = w; |
509 | ((W)heap [k])->active = k + 1; |
783 | ((W)heap [k])->active = k + 1; |
510 | } |
784 | } |
511 | |
785 | |
|
|
786 | void inline_size |
|
|
787 | adjustheap (WT *heap, int N, int k) |
|
|
788 | { |
|
|
789 | upheap (heap, k); |
|
|
790 | downheap (heap, N, k); |
|
|
791 | } |
|
|
792 | |
512 | /*****************************************************************************/ |
793 | /*****************************************************************************/ |
513 | |
794 | |
514 | typedef struct |
795 | typedef struct |
515 | { |
796 | { |
516 | WL head; |
797 | WL head; |
517 | sig_atomic_t volatile gotsig; |
798 | EV_ATOMIC_T gotsig; |
518 | } ANSIG; |
799 | } ANSIG; |
519 | |
800 | |
520 | static ANSIG *signals; |
801 | static ANSIG *signals; |
521 | static int signalmax; |
802 | static int signalmax; |
522 | |
803 | |
523 | static int sigpipe [2]; |
804 | static EV_ATOMIC_T gotsig; |
524 | static sig_atomic_t volatile gotsig; |
|
|
525 | static struct ev_io sigev; |
|
|
526 | |
805 | |
527 | static void |
806 | void inline_size |
528 | signals_init (ANSIG *base, int count) |
807 | signals_init (ANSIG *base, int count) |
529 | { |
808 | { |
530 | while (count--) |
809 | while (count--) |
531 | { |
810 | { |
532 | base->head = 0; |
811 | base->head = 0; |
… | |
… | |
534 | |
813 | |
535 | ++base; |
814 | ++base; |
536 | } |
815 | } |
537 | } |
816 | } |
538 | |
817 | |
|
|
818 | /*****************************************************************************/ |
|
|
819 | |
|
|
820 | void inline_speed |
|
|
821 | fd_intern (int fd) |
|
|
822 | { |
|
|
823 | #ifdef _WIN32 |
|
|
824 | int arg = 1; |
|
|
825 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
826 | #else |
|
|
827 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
828 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
829 | #endif |
|
|
830 | } |
|
|
831 | |
|
|
832 | static void noinline |
|
|
833 | evpipe_init (EV_P) |
|
|
834 | { |
|
|
835 | if (!ev_is_active (&pipeev)) |
|
|
836 | { |
|
|
837 | #if EV_USE_EVENTFD |
|
|
838 | if ((evfd = eventfd (0, 0)) >= 0) |
|
|
839 | { |
|
|
840 | evpipe [0] = -1; |
|
|
841 | fd_intern (evfd); |
|
|
842 | ev_io_set (&pipeev, evfd, EV_READ); |
|
|
843 | } |
|
|
844 | else |
|
|
845 | #endif |
|
|
846 | { |
|
|
847 | while (pipe (evpipe)) |
|
|
848 | syserr ("(libev) error creating signal/async pipe"); |
|
|
849 | |
|
|
850 | fd_intern (evpipe [0]); |
|
|
851 | fd_intern (evpipe [1]); |
|
|
852 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
|
|
853 | } |
|
|
854 | |
|
|
855 | ev_io_start (EV_A_ &pipeev); |
|
|
856 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
857 | } |
|
|
858 | } |
|
|
859 | |
|
|
860 | void inline_size |
|
|
861 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
862 | { |
|
|
863 | if (!*flag) |
|
|
864 | { |
|
|
865 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
866 | |
|
|
867 | *flag = 1; |
|
|
868 | |
|
|
869 | #if EV_USE_EVENTFD |
|
|
870 | if (evfd >= 0) |
|
|
871 | { |
|
|
872 | uint64_t counter = 1; |
|
|
873 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
874 | } |
|
|
875 | else |
|
|
876 | #endif |
|
|
877 | write (evpipe [1], &old_errno, 1); |
|
|
878 | |
|
|
879 | errno = old_errno; |
|
|
880 | } |
|
|
881 | } |
|
|
882 | |
539 | static void |
883 | static void |
|
|
884 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
885 | { |
|
|
886 | #if EV_USE_EVENTFD |
|
|
887 | if (evfd >= 0) |
|
|
888 | { |
|
|
889 | uint64_t counter = 1; |
|
|
890 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
891 | } |
|
|
892 | else |
|
|
893 | #endif |
|
|
894 | { |
|
|
895 | char dummy; |
|
|
896 | read (evpipe [0], &dummy, 1); |
|
|
897 | } |
|
|
898 | |
|
|
899 | if (gotsig && ev_is_default_loop (EV_A)) |
|
|
900 | { |
|
|
901 | int signum; |
|
|
902 | gotsig = 0; |
|
|
903 | |
|
|
904 | for (signum = signalmax; signum--; ) |
|
|
905 | if (signals [signum].gotsig) |
|
|
906 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
907 | } |
|
|
908 | |
|
|
909 | #if EV_ASYNC_ENABLE |
|
|
910 | if (gotasync) |
|
|
911 | { |
|
|
912 | int i; |
|
|
913 | gotasync = 0; |
|
|
914 | |
|
|
915 | for (i = asynccnt; i--; ) |
|
|
916 | if (asyncs [i]->sent) |
|
|
917 | { |
|
|
918 | asyncs [i]->sent = 0; |
|
|
919 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
920 | } |
|
|
921 | } |
|
|
922 | #endif |
|
|
923 | } |
|
|
924 | |
|
|
925 | /*****************************************************************************/ |
|
|
926 | |
|
|
927 | static void |
540 | sighandler (int signum) |
928 | ev_sighandler (int signum) |
541 | { |
929 | { |
|
|
930 | #if EV_MULTIPLICITY |
|
|
931 | struct ev_loop *loop = &default_loop_struct; |
|
|
932 | #endif |
|
|
933 | |
542 | #if WIN32 |
934 | #if _WIN32 |
543 | signal (signum, sighandler); |
935 | signal (signum, ev_sighandler); |
544 | #endif |
936 | #endif |
545 | |
937 | |
546 | signals [signum - 1].gotsig = 1; |
938 | signals [signum - 1].gotsig = 1; |
547 | |
939 | evpipe_write (EV_A_ &gotsig); |
548 | if (!gotsig) |
|
|
549 | { |
|
|
550 | int old_errno = errno; |
|
|
551 | gotsig = 1; |
|
|
552 | write (sigpipe [1], &signum, 1); |
|
|
553 | errno = old_errno; |
|
|
554 | } |
|
|
555 | } |
940 | } |
556 | |
941 | |
557 | static void |
942 | void noinline |
558 | sigcb (EV_P_ struct ev_io *iow, int revents) |
943 | ev_feed_signal_event (EV_P_ int signum) |
559 | { |
944 | { |
560 | WL w; |
945 | WL w; |
|
|
946 | |
|
|
947 | #if EV_MULTIPLICITY |
|
|
948 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
949 | #endif |
|
|
950 | |
561 | int signum; |
951 | --signum; |
562 | |
952 | |
563 | read (sigpipe [0], &revents, 1); |
953 | if (signum < 0 || signum >= signalmax) |
564 | gotsig = 0; |
954 | return; |
565 | |
955 | |
566 | for (signum = signalmax; signum--; ) |
|
|
567 | if (signals [signum].gotsig) |
|
|
568 | { |
|
|
569 | signals [signum].gotsig = 0; |
956 | signals [signum].gotsig = 0; |
570 | |
957 | |
571 | for (w = signals [signum].head; w; w = w->next) |
958 | for (w = signals [signum].head; w; w = w->next) |
572 | event (EV_A_ (W)w, EV_SIGNAL); |
959 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
573 | } |
|
|
574 | } |
|
|
575 | |
|
|
576 | static void |
|
|
577 | siginit (EV_P) |
|
|
578 | { |
|
|
579 | #ifndef WIN32 |
|
|
580 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
|
|
581 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
|
|
582 | |
|
|
583 | /* rather than sort out wether we really need nb, set it */ |
|
|
584 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
|
|
585 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
|
|
586 | #endif |
|
|
587 | |
|
|
588 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
589 | ev_io_start (EV_A_ &sigev); |
|
|
590 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
|
|
591 | } |
960 | } |
592 | |
961 | |
593 | /*****************************************************************************/ |
962 | /*****************************************************************************/ |
594 | |
963 | |
595 | static struct ev_child *childs [PID_HASHSIZE]; |
964 | static WL childs [EV_PID_HASHSIZE]; |
596 | |
965 | |
597 | #ifndef WIN32 |
966 | #ifndef _WIN32 |
598 | |
967 | |
599 | static struct ev_signal childev; |
968 | static ev_signal childev; |
|
|
969 | |
|
|
970 | #ifndef WIFCONTINUED |
|
|
971 | # define WIFCONTINUED(status) 0 |
|
|
972 | #endif |
|
|
973 | |
|
|
974 | void inline_speed |
|
|
975 | child_reap (EV_P_ int chain, int pid, int status) |
|
|
976 | { |
|
|
977 | ev_child *w; |
|
|
978 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
|
|
979 | |
|
|
980 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
981 | { |
|
|
982 | if ((w->pid == pid || !w->pid) |
|
|
983 | && (!traced || (w->flags & 1))) |
|
|
984 | { |
|
|
985 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
|
|
986 | w->rpid = pid; |
|
|
987 | w->rstatus = status; |
|
|
988 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
989 | } |
|
|
990 | } |
|
|
991 | } |
600 | |
992 | |
601 | #ifndef WCONTINUED |
993 | #ifndef WCONTINUED |
602 | # define WCONTINUED 0 |
994 | # define WCONTINUED 0 |
603 | #endif |
995 | #endif |
604 | |
996 | |
605 | static void |
997 | static void |
606 | child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) |
|
|
607 | { |
|
|
608 | struct ev_child *w; |
|
|
609 | |
|
|
610 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
|
|
611 | if (w->pid == pid || !w->pid) |
|
|
612 | { |
|
|
613 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
|
|
614 | w->rpid = pid; |
|
|
615 | w->rstatus = status; |
|
|
616 | event (EV_A_ (W)w, EV_CHILD); |
|
|
617 | } |
|
|
618 | } |
|
|
619 | |
|
|
620 | static void |
|
|
621 | childcb (EV_P_ struct ev_signal *sw, int revents) |
998 | childcb (EV_P_ ev_signal *sw, int revents) |
622 | { |
999 | { |
623 | int pid, status; |
1000 | int pid, status; |
624 | |
1001 | |
|
|
1002 | /* some systems define WCONTINUED but then fail to support it (linux 2.4) */ |
625 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
1003 | if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
626 | { |
1004 | if (!WCONTINUED |
|
|
1005 | || errno != EINVAL |
|
|
1006 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
|
|
1007 | return; |
|
|
1008 | |
627 | /* make sure we are called again until all childs have been reaped */ |
1009 | /* make sure we are called again until all children have been reaped */ |
|
|
1010 | /* we need to do it this way so that the callback gets called before we continue */ |
628 | event (EV_A_ (W)sw, EV_SIGNAL); |
1011 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
629 | |
1012 | |
630 | child_reap (EV_A_ sw, pid, pid, status); |
1013 | child_reap (EV_A_ pid, pid, status); |
|
|
1014 | if (EV_PID_HASHSIZE > 1) |
631 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
1015 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
632 | } |
|
|
633 | } |
1016 | } |
634 | |
1017 | |
635 | #endif |
1018 | #endif |
636 | |
1019 | |
637 | /*****************************************************************************/ |
1020 | /*****************************************************************************/ |
638 | |
1021 | |
|
|
1022 | #if EV_USE_PORT |
|
|
1023 | # include "ev_port.c" |
|
|
1024 | #endif |
639 | #if EV_USE_KQUEUE |
1025 | #if EV_USE_KQUEUE |
640 | # include "ev_kqueue.c" |
1026 | # include "ev_kqueue.c" |
641 | #endif |
1027 | #endif |
642 | #if EV_USE_EPOLL |
1028 | #if EV_USE_EPOLL |
643 | # include "ev_epoll.c" |
1029 | # include "ev_epoll.c" |
… | |
… | |
660 | { |
1046 | { |
661 | return EV_VERSION_MINOR; |
1047 | return EV_VERSION_MINOR; |
662 | } |
1048 | } |
663 | |
1049 | |
664 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1050 | /* return true if we are running with elevated privileges and should ignore env variables */ |
665 | static int |
1051 | int inline_size |
666 | enable_secure (void) |
1052 | enable_secure (void) |
667 | { |
1053 | { |
668 | #ifdef WIN32 |
1054 | #ifdef _WIN32 |
669 | return 0; |
1055 | return 0; |
670 | #else |
1056 | #else |
671 | return getuid () != geteuid () |
1057 | return getuid () != geteuid () |
672 | || getgid () != getegid (); |
1058 | || getgid () != getegid (); |
673 | #endif |
1059 | #endif |
674 | } |
1060 | } |
675 | |
1061 | |
676 | int |
1062 | unsigned int |
677 | ev_method (EV_P) |
1063 | ev_supported_backends (void) |
678 | { |
1064 | { |
679 | return method; |
1065 | unsigned int flags = 0; |
680 | } |
|
|
681 | |
1066 | |
682 | static void |
1067 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
683 | loop_init (EV_P_ int methods) |
1068 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
|
|
1069 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
1070 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
1071 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
|
|
1072 | |
|
|
1073 | return flags; |
|
|
1074 | } |
|
|
1075 | |
|
|
1076 | unsigned int |
|
|
1077 | ev_recommended_backends (void) |
684 | { |
1078 | { |
685 | if (!method) |
1079 | unsigned int flags = ev_supported_backends (); |
|
|
1080 | |
|
|
1081 | #ifndef __NetBSD__ |
|
|
1082 | /* kqueue is borked on everything but netbsd apparently */ |
|
|
1083 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
|
|
1084 | flags &= ~EVBACKEND_KQUEUE; |
|
|
1085 | #endif |
|
|
1086 | #ifdef __APPLE__ |
|
|
1087 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
|
|
1088 | flags &= ~EVBACKEND_POLL; |
|
|
1089 | #endif |
|
|
1090 | |
|
|
1091 | return flags; |
|
|
1092 | } |
|
|
1093 | |
|
|
1094 | unsigned int |
|
|
1095 | ev_embeddable_backends (void) |
|
|
1096 | { |
|
|
1097 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
|
|
1098 | |
|
|
1099 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1100 | /* please fix it and tell me how to detect the fix */ |
|
|
1101 | flags &= ~EVBACKEND_EPOLL; |
|
|
1102 | |
|
|
1103 | return flags; |
|
|
1104 | } |
|
|
1105 | |
|
|
1106 | unsigned int |
|
|
1107 | ev_backend (EV_P) |
|
|
1108 | { |
|
|
1109 | return backend; |
|
|
1110 | } |
|
|
1111 | |
|
|
1112 | unsigned int |
|
|
1113 | ev_loop_count (EV_P) |
|
|
1114 | { |
|
|
1115 | return loop_count; |
|
|
1116 | } |
|
|
1117 | |
|
|
1118 | void |
|
|
1119 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1120 | { |
|
|
1121 | io_blocktime = interval; |
|
|
1122 | } |
|
|
1123 | |
|
|
1124 | void |
|
|
1125 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1126 | { |
|
|
1127 | timeout_blocktime = interval; |
|
|
1128 | } |
|
|
1129 | |
|
|
1130 | static void noinline |
|
|
1131 | loop_init (EV_P_ unsigned int flags) |
|
|
1132 | { |
|
|
1133 | if (!backend) |
686 | { |
1134 | { |
687 | #if EV_USE_MONOTONIC |
1135 | #if EV_USE_MONOTONIC |
688 | { |
1136 | { |
689 | struct timespec ts; |
1137 | struct timespec ts; |
690 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1138 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
691 | have_monotonic = 1; |
1139 | have_monotonic = 1; |
692 | } |
1140 | } |
693 | #endif |
1141 | #endif |
694 | |
1142 | |
695 | rt_now = ev_time (); |
1143 | ev_rt_now = ev_time (); |
696 | mn_now = get_clock (); |
1144 | mn_now = get_clock (); |
697 | now_floor = mn_now; |
1145 | now_floor = mn_now; |
698 | rtmn_diff = rt_now - mn_now; |
1146 | rtmn_diff = ev_rt_now - mn_now; |
699 | |
1147 | |
700 | if (methods == EVMETHOD_AUTO) |
1148 | io_blocktime = 0.; |
701 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
1149 | timeout_blocktime = 0.; |
|
|
1150 | backend = 0; |
|
|
1151 | backend_fd = -1; |
|
|
1152 | gotasync = 0; |
|
|
1153 | #if EV_USE_INOTIFY |
|
|
1154 | fs_fd = -2; |
|
|
1155 | #endif |
|
|
1156 | |
|
|
1157 | /* pid check not overridable via env */ |
|
|
1158 | #ifndef _WIN32 |
|
|
1159 | if (flags & EVFLAG_FORKCHECK) |
|
|
1160 | curpid = getpid (); |
|
|
1161 | #endif |
|
|
1162 | |
|
|
1163 | if (!(flags & EVFLAG_NOENV) |
|
|
1164 | && !enable_secure () |
|
|
1165 | && getenv ("LIBEV_FLAGS")) |
702 | methods = atoi (getenv ("LIBEV_METHODS")); |
1166 | flags = atoi (getenv ("LIBEV_FLAGS")); |
703 | else |
|
|
704 | methods = EVMETHOD_ANY; |
|
|
705 | |
1167 | |
706 | method = 0; |
1168 | if (!(flags & 0x0000ffffUL)) |
707 | #if EV_USE_WIN32 |
1169 | flags |= ev_recommended_backends (); |
708 | if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods); |
1170 | |
|
|
1171 | #if EV_USE_PORT |
|
|
1172 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
709 | #endif |
1173 | #endif |
710 | #if EV_USE_KQUEUE |
1174 | #if EV_USE_KQUEUE |
711 | if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); |
1175 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
712 | #endif |
1176 | #endif |
713 | #if EV_USE_EPOLL |
1177 | #if EV_USE_EPOLL |
714 | if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); |
1178 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
715 | #endif |
1179 | #endif |
716 | #if EV_USE_POLL |
1180 | #if EV_USE_POLL |
717 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
1181 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
718 | #endif |
1182 | #endif |
719 | #if EV_USE_SELECT |
1183 | #if EV_USE_SELECT |
720 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
1184 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
721 | #endif |
1185 | #endif |
722 | |
1186 | |
723 | ev_watcher_init (&sigev, sigcb); |
1187 | ev_init (&pipeev, pipecb); |
724 | ev_set_priority (&sigev, EV_MAXPRI); |
1188 | ev_set_priority (&pipeev, EV_MAXPRI); |
725 | } |
1189 | } |
726 | } |
1190 | } |
727 | |
1191 | |
728 | void |
1192 | static void noinline |
729 | loop_destroy (EV_P) |
1193 | loop_destroy (EV_P) |
730 | { |
1194 | { |
731 | int i; |
1195 | int i; |
732 | |
1196 | |
|
|
1197 | if (ev_is_active (&pipeev)) |
|
|
1198 | { |
|
|
1199 | ev_ref (EV_A); /* signal watcher */ |
|
|
1200 | ev_io_stop (EV_A_ &pipeev); |
|
|
1201 | |
|
|
1202 | #if EV_USE_EVENTFD |
|
|
1203 | if (evfd >= 0) |
|
|
1204 | close (evfd); |
|
|
1205 | #endif |
|
|
1206 | |
|
|
1207 | if (evpipe [0] >= 0) |
|
|
1208 | { |
|
|
1209 | close (evpipe [0]); |
|
|
1210 | close (evpipe [1]); |
|
|
1211 | } |
|
|
1212 | } |
|
|
1213 | |
733 | #if EV_USE_WIN32 |
1214 | #if EV_USE_INOTIFY |
734 | if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A); |
1215 | if (fs_fd >= 0) |
|
|
1216 | close (fs_fd); |
|
|
1217 | #endif |
|
|
1218 | |
|
|
1219 | if (backend_fd >= 0) |
|
|
1220 | close (backend_fd); |
|
|
1221 | |
|
|
1222 | #if EV_USE_PORT |
|
|
1223 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
735 | #endif |
1224 | #endif |
736 | #if EV_USE_KQUEUE |
1225 | #if EV_USE_KQUEUE |
737 | if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); |
1226 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
738 | #endif |
1227 | #endif |
739 | #if EV_USE_EPOLL |
1228 | #if EV_USE_EPOLL |
740 | if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); |
1229 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
741 | #endif |
1230 | #endif |
742 | #if EV_USE_POLL |
1231 | #if EV_USE_POLL |
743 | if (method == EVMETHOD_POLL ) poll_destroy (EV_A); |
1232 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
744 | #endif |
1233 | #endif |
745 | #if EV_USE_SELECT |
1234 | #if EV_USE_SELECT |
746 | if (method == EVMETHOD_SELECT) select_destroy (EV_A); |
1235 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
747 | #endif |
1236 | #endif |
748 | |
1237 | |
749 | for (i = NUMPRI; i--; ) |
1238 | for (i = NUMPRI; i--; ) |
|
|
1239 | { |
750 | array_free (pending, [i]); |
1240 | array_free (pending, [i]); |
|
|
1241 | #if EV_IDLE_ENABLE |
|
|
1242 | array_free (idle, [i]); |
|
|
1243 | #endif |
|
|
1244 | } |
|
|
1245 | |
|
|
1246 | ev_free (anfds); anfdmax = 0; |
751 | |
1247 | |
752 | /* have to use the microsoft-never-gets-it-right macro */ |
1248 | /* have to use the microsoft-never-gets-it-right macro */ |
753 | array_free_microshit (fdchange); |
1249 | array_free (fdchange, EMPTY); |
754 | array_free_microshit (timer); |
1250 | array_free (timer, EMPTY); |
755 | array_free_microshit (periodic); |
1251 | #if EV_PERIODIC_ENABLE |
756 | array_free_microshit (idle); |
1252 | array_free (periodic, EMPTY); |
757 | array_free_microshit (prepare); |
1253 | #endif |
758 | array_free_microshit (check); |
1254 | #if EV_FORK_ENABLE |
|
|
1255 | array_free (fork, EMPTY); |
|
|
1256 | #endif |
|
|
1257 | array_free (prepare, EMPTY); |
|
|
1258 | array_free (check, EMPTY); |
|
|
1259 | #if EV_ASYNC_ENABLE |
|
|
1260 | array_free (async, EMPTY); |
|
|
1261 | #endif |
759 | |
1262 | |
760 | method = 0; |
1263 | backend = 0; |
761 | } |
1264 | } |
762 | |
1265 | |
763 | static void |
1266 | void inline_size infy_fork (EV_P); |
|
|
1267 | |
|
|
1268 | void inline_size |
764 | loop_fork (EV_P) |
1269 | loop_fork (EV_P) |
765 | { |
1270 | { |
|
|
1271 | #if EV_USE_PORT |
|
|
1272 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
|
|
1273 | #endif |
|
|
1274 | #if EV_USE_KQUEUE |
|
|
1275 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
|
|
1276 | #endif |
766 | #if EV_USE_EPOLL |
1277 | #if EV_USE_EPOLL |
767 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
1278 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
768 | #endif |
1279 | #endif |
769 | #if EV_USE_KQUEUE |
1280 | #if EV_USE_INOTIFY |
770 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
1281 | infy_fork (EV_A); |
771 | #endif |
1282 | #endif |
772 | |
1283 | |
773 | if (ev_is_active (&sigev)) |
1284 | if (ev_is_active (&pipeev)) |
774 | { |
1285 | { |
775 | /* default loop */ |
1286 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1287 | /* while we modify the fd vars */ |
|
|
1288 | gotsig = 1; |
|
|
1289 | #if EV_ASYNC_ENABLE |
|
|
1290 | gotasync = 1; |
|
|
1291 | #endif |
776 | |
1292 | |
777 | ev_ref (EV_A); |
1293 | ev_ref (EV_A); |
778 | ev_io_stop (EV_A_ &sigev); |
1294 | ev_io_stop (EV_A_ &pipeev); |
|
|
1295 | |
|
|
1296 | #if EV_USE_EVENTFD |
|
|
1297 | if (evfd >= 0) |
|
|
1298 | close (evfd); |
|
|
1299 | #endif |
|
|
1300 | |
|
|
1301 | if (evpipe [0] >= 0) |
|
|
1302 | { |
779 | close (sigpipe [0]); |
1303 | close (evpipe [0]); |
780 | close (sigpipe [1]); |
1304 | close (evpipe [1]); |
|
|
1305 | } |
781 | |
1306 | |
782 | while (pipe (sigpipe)) |
|
|
783 | syserr ("(libev) error creating pipe"); |
|
|
784 | |
|
|
785 | siginit (EV_A); |
1307 | evpipe_init (EV_A); |
|
|
1308 | /* now iterate over everything, in case we missed something */ |
|
|
1309 | pipecb (EV_A_ &pipeev, EV_READ); |
786 | } |
1310 | } |
787 | |
1311 | |
788 | postfork = 0; |
1312 | postfork = 0; |
789 | } |
1313 | } |
790 | |
1314 | |
791 | #if EV_MULTIPLICITY |
1315 | #if EV_MULTIPLICITY |
792 | struct ev_loop * |
1316 | struct ev_loop * |
793 | ev_loop_new (int methods) |
1317 | ev_loop_new (unsigned int flags) |
794 | { |
1318 | { |
795 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1319 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
796 | |
1320 | |
797 | memset (loop, 0, sizeof (struct ev_loop)); |
1321 | memset (loop, 0, sizeof (struct ev_loop)); |
798 | |
1322 | |
799 | loop_init (EV_A_ methods); |
1323 | loop_init (EV_A_ flags); |
800 | |
1324 | |
801 | if (ev_method (EV_A)) |
1325 | if (ev_backend (EV_A)) |
802 | return loop; |
1326 | return loop; |
803 | |
1327 | |
804 | return 0; |
1328 | return 0; |
805 | } |
1329 | } |
806 | |
1330 | |
… | |
… | |
812 | } |
1336 | } |
813 | |
1337 | |
814 | void |
1338 | void |
815 | ev_loop_fork (EV_P) |
1339 | ev_loop_fork (EV_P) |
816 | { |
1340 | { |
817 | postfork = 1; |
1341 | postfork = 1; /* must be in line with ev_default_fork */ |
818 | } |
1342 | } |
819 | |
1343 | |
820 | #endif |
1344 | #endif |
821 | |
1345 | |
822 | #if EV_MULTIPLICITY |
1346 | #if EV_MULTIPLICITY |
823 | struct ev_loop default_loop_struct; |
|
|
824 | static struct ev_loop *default_loop; |
|
|
825 | |
|
|
826 | struct ev_loop * |
1347 | struct ev_loop * |
|
|
1348 | ev_default_loop_init (unsigned int flags) |
827 | #else |
1349 | #else |
828 | static int default_loop; |
|
|
829 | |
|
|
830 | int |
1350 | int |
|
|
1351 | ev_default_loop (unsigned int flags) |
831 | #endif |
1352 | #endif |
832 | ev_default_loop (int methods) |
|
|
833 | { |
1353 | { |
834 | if (sigpipe [0] == sigpipe [1]) |
|
|
835 | if (pipe (sigpipe)) |
|
|
836 | return 0; |
|
|
837 | |
|
|
838 | if (!default_loop) |
1354 | if (!ev_default_loop_ptr) |
839 | { |
1355 | { |
840 | #if EV_MULTIPLICITY |
1356 | #if EV_MULTIPLICITY |
841 | struct ev_loop *loop = default_loop = &default_loop_struct; |
1357 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
842 | #else |
1358 | #else |
843 | default_loop = 1; |
1359 | ev_default_loop_ptr = 1; |
844 | #endif |
1360 | #endif |
845 | |
1361 | |
846 | loop_init (EV_A_ methods); |
1362 | loop_init (EV_A_ flags); |
847 | |
1363 | |
848 | if (ev_method (EV_A)) |
1364 | if (ev_backend (EV_A)) |
849 | { |
1365 | { |
850 | siginit (EV_A); |
|
|
851 | |
|
|
852 | #ifndef WIN32 |
1366 | #ifndef _WIN32 |
853 | ev_signal_init (&childev, childcb, SIGCHLD); |
1367 | ev_signal_init (&childev, childcb, SIGCHLD); |
854 | ev_set_priority (&childev, EV_MAXPRI); |
1368 | ev_set_priority (&childev, EV_MAXPRI); |
855 | ev_signal_start (EV_A_ &childev); |
1369 | ev_signal_start (EV_A_ &childev); |
856 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1370 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
857 | #endif |
1371 | #endif |
858 | } |
1372 | } |
859 | else |
1373 | else |
860 | default_loop = 0; |
1374 | ev_default_loop_ptr = 0; |
861 | } |
1375 | } |
862 | |
1376 | |
863 | return default_loop; |
1377 | return ev_default_loop_ptr; |
864 | } |
1378 | } |
865 | |
1379 | |
866 | void |
1380 | void |
867 | ev_default_destroy (void) |
1381 | ev_default_destroy (void) |
868 | { |
1382 | { |
869 | #if EV_MULTIPLICITY |
1383 | #if EV_MULTIPLICITY |
870 | struct ev_loop *loop = default_loop; |
1384 | struct ev_loop *loop = ev_default_loop_ptr; |
871 | #endif |
1385 | #endif |
872 | |
1386 | |
873 | #ifndef WIN32 |
1387 | #ifndef _WIN32 |
874 | ev_ref (EV_A); /* child watcher */ |
1388 | ev_ref (EV_A); /* child watcher */ |
875 | ev_signal_stop (EV_A_ &childev); |
1389 | ev_signal_stop (EV_A_ &childev); |
876 | #endif |
1390 | #endif |
877 | |
1391 | |
878 | ev_ref (EV_A); /* signal watcher */ |
|
|
879 | ev_io_stop (EV_A_ &sigev); |
|
|
880 | |
|
|
881 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
882 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
883 | |
|
|
884 | loop_destroy (EV_A); |
1392 | loop_destroy (EV_A); |
885 | } |
1393 | } |
886 | |
1394 | |
887 | void |
1395 | void |
888 | ev_default_fork (void) |
1396 | ev_default_fork (void) |
889 | { |
1397 | { |
890 | #if EV_MULTIPLICITY |
1398 | #if EV_MULTIPLICITY |
891 | struct ev_loop *loop = default_loop; |
1399 | struct ev_loop *loop = ev_default_loop_ptr; |
892 | #endif |
1400 | #endif |
893 | |
1401 | |
894 | if (method) |
1402 | if (backend) |
895 | postfork = 1; |
1403 | postfork = 1; /* must be in line with ev_loop_fork */ |
896 | } |
1404 | } |
897 | |
1405 | |
898 | /*****************************************************************************/ |
1406 | /*****************************************************************************/ |
899 | |
1407 | |
900 | static void |
1408 | void |
|
|
1409 | ev_invoke (EV_P_ void *w, int revents) |
|
|
1410 | { |
|
|
1411 | EV_CB_INVOKE ((W)w, revents); |
|
|
1412 | } |
|
|
1413 | |
|
|
1414 | void inline_speed |
901 | call_pending (EV_P) |
1415 | call_pending (EV_P) |
902 | { |
1416 | { |
903 | int pri; |
1417 | int pri; |
904 | |
1418 | |
905 | for (pri = NUMPRI; pri--; ) |
1419 | for (pri = NUMPRI; pri--; ) |
906 | while (pendingcnt [pri]) |
1420 | while (pendingcnt [pri]) |
907 | { |
1421 | { |
908 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1422 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
909 | |
1423 | |
910 | if (p->w) |
1424 | if (expect_true (p->w)) |
911 | { |
1425 | { |
|
|
1426 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1427 | |
912 | p->w->pending = 0; |
1428 | p->w->pending = 0; |
913 | p->w->cb (EV_A_ p->w, p->events); |
1429 | EV_CB_INVOKE (p->w, p->events); |
914 | } |
1430 | } |
915 | } |
1431 | } |
916 | } |
1432 | } |
917 | |
1433 | |
918 | static void |
1434 | void inline_size |
919 | timers_reify (EV_P) |
1435 | timers_reify (EV_P) |
920 | { |
1436 | { |
921 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1437 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
922 | { |
1438 | { |
923 | struct ev_timer *w = timers [0]; |
1439 | ev_timer *w = (ev_timer *)timers [0]; |
924 | |
1440 | |
925 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
1441 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
926 | |
1442 | |
927 | /* first reschedule or stop timer */ |
1443 | /* first reschedule or stop timer */ |
928 | if (w->repeat) |
1444 | if (w->repeat) |
929 | { |
1445 | { |
930 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1446 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1447 | |
931 | ((WT)w)->at = mn_now + w->repeat; |
1448 | ((WT)w)->at += w->repeat; |
|
|
1449 | if (((WT)w)->at < mn_now) |
|
|
1450 | ((WT)w)->at = mn_now; |
|
|
1451 | |
932 | downheap ((WT *)timers, timercnt, 0); |
1452 | downheap (timers, timercnt, 0); |
933 | } |
1453 | } |
934 | else |
1454 | else |
935 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1455 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
936 | |
1456 | |
937 | event (EV_A_ (W)w, EV_TIMEOUT); |
1457 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
938 | } |
1458 | } |
939 | } |
1459 | } |
940 | |
1460 | |
941 | static void |
1461 | #if EV_PERIODIC_ENABLE |
|
|
1462 | void inline_size |
942 | periodics_reify (EV_P) |
1463 | periodics_reify (EV_P) |
943 | { |
1464 | { |
944 | while (periodiccnt && ((WT)periodics [0])->at <= rt_now) |
1465 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
945 | { |
1466 | { |
946 | struct ev_periodic *w = periodics [0]; |
1467 | ev_periodic *w = (ev_periodic *)periodics [0]; |
947 | |
1468 | |
948 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
1469 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
949 | |
1470 | |
950 | /* first reschedule or stop timer */ |
1471 | /* first reschedule or stop timer */ |
951 | if (w->interval) |
1472 | if (w->reschedule_cb) |
952 | { |
1473 | { |
|
|
1474 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
|
|
1475 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1476 | downheap (periodics, periodiccnt, 0); |
|
|
1477 | } |
|
|
1478 | else if (w->interval) |
|
|
1479 | { |
953 | ((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
1480 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1481 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
954 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now)); |
1482 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
955 | downheap ((WT *)periodics, periodiccnt, 0); |
1483 | downheap (periodics, periodiccnt, 0); |
956 | } |
1484 | } |
957 | else |
1485 | else |
958 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1486 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
959 | |
1487 | |
960 | event (EV_A_ (W)w, EV_PERIODIC); |
1488 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
961 | } |
1489 | } |
962 | } |
1490 | } |
963 | |
1491 | |
964 | static void |
1492 | static void noinline |
965 | periodics_reschedule (EV_P) |
1493 | periodics_reschedule (EV_P) |
966 | { |
1494 | { |
967 | int i; |
1495 | int i; |
968 | |
1496 | |
969 | /* adjust periodics after time jump */ |
1497 | /* adjust periodics after time jump */ |
970 | for (i = 0; i < periodiccnt; ++i) |
1498 | for (i = 0; i < periodiccnt; ++i) |
971 | { |
1499 | { |
972 | struct ev_periodic *w = periodics [i]; |
1500 | ev_periodic *w = (ev_periodic *)periodics [i]; |
973 | |
1501 | |
|
|
1502 | if (w->reschedule_cb) |
|
|
1503 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
974 | if (w->interval) |
1504 | else if (w->interval) |
|
|
1505 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1506 | } |
|
|
1507 | |
|
|
1508 | /* now rebuild the heap */ |
|
|
1509 | for (i = periodiccnt >> 1; i--; ) |
|
|
1510 | downheap (periodics, periodiccnt, i); |
|
|
1511 | } |
|
|
1512 | #endif |
|
|
1513 | |
|
|
1514 | #if EV_IDLE_ENABLE |
|
|
1515 | void inline_size |
|
|
1516 | idle_reify (EV_P) |
|
|
1517 | { |
|
|
1518 | if (expect_false (idleall)) |
|
|
1519 | { |
|
|
1520 | int pri; |
|
|
1521 | |
|
|
1522 | for (pri = NUMPRI; pri--; ) |
975 | { |
1523 | { |
976 | ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1524 | if (pendingcnt [pri]) |
|
|
1525 | break; |
977 | |
1526 | |
978 | if (fabs (diff) >= 1e-4) |
1527 | if (idlecnt [pri]) |
979 | { |
1528 | { |
980 | ev_periodic_stop (EV_A_ w); |
1529 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
981 | ev_periodic_start (EV_A_ w); |
1530 | break; |
982 | |
|
|
983 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
|
|
984 | } |
1531 | } |
985 | } |
1532 | } |
986 | } |
1533 | } |
987 | } |
1534 | } |
|
|
1535 | #endif |
988 | |
1536 | |
989 | inline int |
1537 | void inline_speed |
990 | time_update_monotonic (EV_P) |
1538 | time_update (EV_P_ ev_tstamp max_block) |
991 | { |
|
|
992 | mn_now = get_clock (); |
|
|
993 | |
|
|
994 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
|
|
995 | { |
|
|
996 | rt_now = rtmn_diff + mn_now; |
|
|
997 | return 0; |
|
|
998 | } |
|
|
999 | else |
|
|
1000 | { |
|
|
1001 | now_floor = mn_now; |
|
|
1002 | rt_now = ev_time (); |
|
|
1003 | return 1; |
|
|
1004 | } |
|
|
1005 | } |
|
|
1006 | |
|
|
1007 | static void |
|
|
1008 | time_update (EV_P) |
|
|
1009 | { |
1539 | { |
1010 | int i; |
1540 | int i; |
1011 | |
1541 | |
1012 | #if EV_USE_MONOTONIC |
1542 | #if EV_USE_MONOTONIC |
1013 | if (expect_true (have_monotonic)) |
1543 | if (expect_true (have_monotonic)) |
1014 | { |
1544 | { |
1015 | if (time_update_monotonic (EV_A)) |
1545 | ev_tstamp odiff = rtmn_diff; |
|
|
1546 | |
|
|
1547 | mn_now = get_clock (); |
|
|
1548 | |
|
|
1549 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
1550 | /* interpolate in the meantime */ |
|
|
1551 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1016 | { |
1552 | { |
1017 | ev_tstamp odiff = rtmn_diff; |
1553 | ev_rt_now = rtmn_diff + mn_now; |
|
|
1554 | return; |
|
|
1555 | } |
1018 | |
1556 | |
|
|
1557 | now_floor = mn_now; |
|
|
1558 | ev_rt_now = ev_time (); |
|
|
1559 | |
1019 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
1560 | /* loop a few times, before making important decisions. |
|
|
1561 | * on the choice of "4": one iteration isn't enough, |
|
|
1562 | * in case we get preempted during the calls to |
|
|
1563 | * ev_time and get_clock. a second call is almost guaranteed |
|
|
1564 | * to succeed in that case, though. and looping a few more times |
|
|
1565 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1566 | * in the unlikely event of having been preempted here. |
|
|
1567 | */ |
|
|
1568 | for (i = 4; --i; ) |
1020 | { |
1569 | { |
1021 | rtmn_diff = rt_now - mn_now; |
1570 | rtmn_diff = ev_rt_now - mn_now; |
1022 | |
1571 | |
1023 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1572 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1024 | return; /* all is well */ |
1573 | return; /* all is well */ |
1025 | |
1574 | |
1026 | rt_now = ev_time (); |
1575 | ev_rt_now = ev_time (); |
1027 | mn_now = get_clock (); |
1576 | mn_now = get_clock (); |
1028 | now_floor = mn_now; |
1577 | now_floor = mn_now; |
1029 | } |
1578 | } |
1030 | |
1579 | |
|
|
1580 | # if EV_PERIODIC_ENABLE |
|
|
1581 | periodics_reschedule (EV_A); |
|
|
1582 | # endif |
|
|
1583 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1584 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1585 | } |
|
|
1586 | else |
|
|
1587 | #endif |
|
|
1588 | { |
|
|
1589 | ev_rt_now = ev_time (); |
|
|
1590 | |
|
|
1591 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
|
|
1592 | { |
|
|
1593 | #if EV_PERIODIC_ENABLE |
1031 | periodics_reschedule (EV_A); |
1594 | periodics_reschedule (EV_A); |
1032 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1595 | #endif |
1033 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1596 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1597 | for (i = 0; i < timercnt; ++i) |
|
|
1598 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1034 | } |
1599 | } |
1035 | } |
|
|
1036 | else |
|
|
1037 | #endif |
|
|
1038 | { |
|
|
1039 | rt_now = ev_time (); |
|
|
1040 | |
1600 | |
1041 | if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
|
|
1042 | { |
|
|
1043 | periodics_reschedule (EV_A); |
|
|
1044 | |
|
|
1045 | /* adjust timers. this is easy, as the offset is the same for all */ |
|
|
1046 | for (i = 0; i < timercnt; ++i) |
|
|
1047 | ((WT)timers [i])->at += rt_now - mn_now; |
|
|
1048 | } |
|
|
1049 | |
|
|
1050 | mn_now = rt_now; |
1601 | mn_now = ev_rt_now; |
1051 | } |
1602 | } |
1052 | } |
1603 | } |
1053 | |
1604 | |
1054 | void |
1605 | void |
1055 | ev_ref (EV_P) |
1606 | ev_ref (EV_P) |
… | |
… | |
1066 | static int loop_done; |
1617 | static int loop_done; |
1067 | |
1618 | |
1068 | void |
1619 | void |
1069 | ev_loop (EV_P_ int flags) |
1620 | ev_loop (EV_P_ int flags) |
1070 | { |
1621 | { |
1071 | double block; |
1622 | loop_done = EVUNLOOP_CANCEL; |
1072 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
1623 | |
|
|
1624 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1073 | |
1625 | |
1074 | do |
1626 | do |
1075 | { |
1627 | { |
|
|
1628 | #ifndef _WIN32 |
|
|
1629 | if (expect_false (curpid)) /* penalise the forking check even more */ |
|
|
1630 | if (expect_false (getpid () != curpid)) |
|
|
1631 | { |
|
|
1632 | curpid = getpid (); |
|
|
1633 | postfork = 1; |
|
|
1634 | } |
|
|
1635 | #endif |
|
|
1636 | |
|
|
1637 | #if EV_FORK_ENABLE |
|
|
1638 | /* we might have forked, so queue fork handlers */ |
|
|
1639 | if (expect_false (postfork)) |
|
|
1640 | if (forkcnt) |
|
|
1641 | { |
|
|
1642 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
|
|
1643 | call_pending (EV_A); |
|
|
1644 | } |
|
|
1645 | #endif |
|
|
1646 | |
1076 | /* queue check watchers (and execute them) */ |
1647 | /* queue prepare watchers (and execute them) */ |
1077 | if (expect_false (preparecnt)) |
1648 | if (expect_false (preparecnt)) |
1078 | { |
1649 | { |
1079 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1650 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1080 | call_pending (EV_A); |
1651 | call_pending (EV_A); |
1081 | } |
1652 | } |
1082 | |
1653 | |
|
|
1654 | if (expect_false (!activecnt)) |
|
|
1655 | break; |
|
|
1656 | |
1083 | /* we might have forked, so reify kernel state if necessary */ |
1657 | /* we might have forked, so reify kernel state if necessary */ |
1084 | if (expect_false (postfork)) |
1658 | if (expect_false (postfork)) |
1085 | loop_fork (EV_A); |
1659 | loop_fork (EV_A); |
1086 | |
1660 | |
1087 | /* update fd-related kernel structures */ |
1661 | /* update fd-related kernel structures */ |
1088 | fd_reify (EV_A); |
1662 | fd_reify (EV_A); |
1089 | |
1663 | |
1090 | /* calculate blocking time */ |
1664 | /* calculate blocking time */ |
|
|
1665 | { |
|
|
1666 | ev_tstamp waittime = 0.; |
|
|
1667 | ev_tstamp sleeptime = 0.; |
1091 | |
1668 | |
1092 | /* we only need this for !monotonic clockor timers, but as we basically |
1669 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1093 | always have timers, we just calculate it always */ |
|
|
1094 | #if EV_USE_MONOTONIC |
|
|
1095 | if (expect_true (have_monotonic)) |
|
|
1096 | time_update_monotonic (EV_A); |
|
|
1097 | else |
|
|
1098 | #endif |
|
|
1099 | { |
1670 | { |
1100 | rt_now = ev_time (); |
1671 | /* update time to cancel out callback processing overhead */ |
1101 | mn_now = rt_now; |
1672 | time_update (EV_A_ 1e100); |
1102 | } |
|
|
1103 | |
1673 | |
1104 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
|
|
1105 | block = 0.; |
|
|
1106 | else |
|
|
1107 | { |
|
|
1108 | block = MAX_BLOCKTIME; |
1674 | waittime = MAX_BLOCKTIME; |
1109 | |
1675 | |
1110 | if (timercnt) |
1676 | if (timercnt) |
1111 | { |
1677 | { |
1112 | ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; |
1678 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1113 | if (block > to) block = to; |
1679 | if (waittime > to) waittime = to; |
1114 | } |
1680 | } |
1115 | |
1681 | |
|
|
1682 | #if EV_PERIODIC_ENABLE |
1116 | if (periodiccnt) |
1683 | if (periodiccnt) |
1117 | { |
1684 | { |
1118 | ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge; |
1685 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1119 | if (block > to) block = to; |
1686 | if (waittime > to) waittime = to; |
1120 | } |
1687 | } |
|
|
1688 | #endif |
1121 | |
1689 | |
1122 | if (block < 0.) block = 0.; |
1690 | if (expect_false (waittime < timeout_blocktime)) |
|
|
1691 | waittime = timeout_blocktime; |
|
|
1692 | |
|
|
1693 | sleeptime = waittime - backend_fudge; |
|
|
1694 | |
|
|
1695 | if (expect_true (sleeptime > io_blocktime)) |
|
|
1696 | sleeptime = io_blocktime; |
|
|
1697 | |
|
|
1698 | if (sleeptime) |
|
|
1699 | { |
|
|
1700 | ev_sleep (sleeptime); |
|
|
1701 | waittime -= sleeptime; |
|
|
1702 | } |
1123 | } |
1703 | } |
1124 | |
1704 | |
1125 | method_poll (EV_A_ block); |
1705 | ++loop_count; |
|
|
1706 | backend_poll (EV_A_ waittime); |
1126 | |
1707 | |
1127 | /* update rt_now, do magic */ |
1708 | /* update ev_rt_now, do magic */ |
1128 | time_update (EV_A); |
1709 | time_update (EV_A_ waittime + sleeptime); |
|
|
1710 | } |
1129 | |
1711 | |
1130 | /* queue pending timers and reschedule them */ |
1712 | /* queue pending timers and reschedule them */ |
1131 | timers_reify (EV_A); /* relative timers called last */ |
1713 | timers_reify (EV_A); /* relative timers called last */ |
|
|
1714 | #if EV_PERIODIC_ENABLE |
1132 | periodics_reify (EV_A); /* absolute timers called first */ |
1715 | periodics_reify (EV_A); /* absolute timers called first */ |
|
|
1716 | #endif |
1133 | |
1717 | |
|
|
1718 | #if EV_IDLE_ENABLE |
1134 | /* queue idle watchers unless io or timers are pending */ |
1719 | /* queue idle watchers unless other events are pending */ |
1135 | if (!pendingcnt) |
1720 | idle_reify (EV_A); |
1136 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1721 | #endif |
1137 | |
1722 | |
1138 | /* queue check watchers, to be executed first */ |
1723 | /* queue check watchers, to be executed first */ |
1139 | if (checkcnt) |
1724 | if (expect_false (checkcnt)) |
1140 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1725 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1141 | |
1726 | |
1142 | call_pending (EV_A); |
1727 | call_pending (EV_A); |
1143 | } |
1728 | } |
1144 | while (activecnt && !loop_done); |
1729 | while (expect_true ( |
|
|
1730 | activecnt |
|
|
1731 | && !loop_done |
|
|
1732 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
1733 | )); |
1145 | |
1734 | |
1146 | if (loop_done != 2) |
1735 | if (loop_done == EVUNLOOP_ONE) |
1147 | loop_done = 0; |
1736 | loop_done = EVUNLOOP_CANCEL; |
1148 | } |
1737 | } |
1149 | |
1738 | |
1150 | void |
1739 | void |
1151 | ev_unloop (EV_P_ int how) |
1740 | ev_unloop (EV_P_ int how) |
1152 | { |
1741 | { |
1153 | loop_done = how; |
1742 | loop_done = how; |
1154 | } |
1743 | } |
1155 | |
1744 | |
1156 | /*****************************************************************************/ |
1745 | /*****************************************************************************/ |
1157 | |
1746 | |
1158 | inline void |
1747 | void inline_size |
1159 | wlist_add (WL *head, WL elem) |
1748 | wlist_add (WL *head, WL elem) |
1160 | { |
1749 | { |
1161 | elem->next = *head; |
1750 | elem->next = *head; |
1162 | *head = elem; |
1751 | *head = elem; |
1163 | } |
1752 | } |
1164 | |
1753 | |
1165 | inline void |
1754 | void inline_size |
1166 | wlist_del (WL *head, WL elem) |
1755 | wlist_del (WL *head, WL elem) |
1167 | { |
1756 | { |
1168 | while (*head) |
1757 | while (*head) |
1169 | { |
1758 | { |
1170 | if (*head == elem) |
1759 | if (*head == elem) |
… | |
… | |
1175 | |
1764 | |
1176 | head = &(*head)->next; |
1765 | head = &(*head)->next; |
1177 | } |
1766 | } |
1178 | } |
1767 | } |
1179 | |
1768 | |
1180 | inline void |
1769 | void inline_speed |
1181 | ev_clear_pending (EV_P_ W w) |
1770 | clear_pending (EV_P_ W w) |
1182 | { |
1771 | { |
1183 | if (w->pending) |
1772 | if (w->pending) |
1184 | { |
1773 | { |
1185 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1774 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1186 | w->pending = 0; |
1775 | w->pending = 0; |
1187 | } |
1776 | } |
1188 | } |
1777 | } |
1189 | |
1778 | |
1190 | inline void |
1779 | int |
|
|
1780 | ev_clear_pending (EV_P_ void *w) |
|
|
1781 | { |
|
|
1782 | W w_ = (W)w; |
|
|
1783 | int pending = w_->pending; |
|
|
1784 | |
|
|
1785 | if (expect_true (pending)) |
|
|
1786 | { |
|
|
1787 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
1788 | w_->pending = 0; |
|
|
1789 | p->w = 0; |
|
|
1790 | return p->events; |
|
|
1791 | } |
|
|
1792 | else |
|
|
1793 | return 0; |
|
|
1794 | } |
|
|
1795 | |
|
|
1796 | void inline_size |
|
|
1797 | pri_adjust (EV_P_ W w) |
|
|
1798 | { |
|
|
1799 | int pri = w->priority; |
|
|
1800 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
|
|
1801 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
|
|
1802 | w->priority = pri; |
|
|
1803 | } |
|
|
1804 | |
|
|
1805 | void inline_speed |
1191 | ev_start (EV_P_ W w, int active) |
1806 | ev_start (EV_P_ W w, int active) |
1192 | { |
1807 | { |
1193 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
1808 | pri_adjust (EV_A_ w); |
1194 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
1195 | |
|
|
1196 | w->active = active; |
1809 | w->active = active; |
1197 | ev_ref (EV_A); |
1810 | ev_ref (EV_A); |
1198 | } |
1811 | } |
1199 | |
1812 | |
1200 | inline void |
1813 | void inline_size |
1201 | ev_stop (EV_P_ W w) |
1814 | ev_stop (EV_P_ W w) |
1202 | { |
1815 | { |
1203 | ev_unref (EV_A); |
1816 | ev_unref (EV_A); |
1204 | w->active = 0; |
1817 | w->active = 0; |
1205 | } |
1818 | } |
1206 | |
1819 | |
1207 | /*****************************************************************************/ |
1820 | /*****************************************************************************/ |
1208 | |
1821 | |
1209 | void |
1822 | void noinline |
1210 | ev_io_start (EV_P_ struct ev_io *w) |
1823 | ev_io_start (EV_P_ ev_io *w) |
1211 | { |
1824 | { |
1212 | int fd = w->fd; |
1825 | int fd = w->fd; |
1213 | |
1826 | |
1214 | if (ev_is_active (w)) |
1827 | if (expect_false (ev_is_active (w))) |
1215 | return; |
1828 | return; |
1216 | |
1829 | |
1217 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1830 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1218 | |
1831 | |
1219 | ev_start (EV_A_ (W)w, 1); |
1832 | ev_start (EV_A_ (W)w, 1); |
1220 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
1833 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1221 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1834 | wlist_add (&anfds[fd].head, (WL)w); |
1222 | |
1835 | |
1223 | fd_change (EV_A_ fd); |
1836 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
|
|
1837 | w->events &= ~EV_IOFDSET; |
1224 | } |
1838 | } |
1225 | |
1839 | |
1226 | void |
1840 | void noinline |
1227 | ev_io_stop (EV_P_ struct ev_io *w) |
1841 | ev_io_stop (EV_P_ ev_io *w) |
1228 | { |
1842 | { |
1229 | ev_clear_pending (EV_A_ (W)w); |
1843 | clear_pending (EV_A_ (W)w); |
1230 | if (!ev_is_active (w)) |
1844 | if (expect_false (!ev_is_active (w))) |
1231 | return; |
1845 | return; |
1232 | |
1846 | |
|
|
1847 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
1848 | |
1233 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1849 | wlist_del (&anfds[w->fd].head, (WL)w); |
1234 | ev_stop (EV_A_ (W)w); |
1850 | ev_stop (EV_A_ (W)w); |
1235 | |
1851 | |
1236 | fd_change (EV_A_ w->fd); |
1852 | fd_change (EV_A_ w->fd, 1); |
1237 | } |
1853 | } |
1238 | |
1854 | |
1239 | void |
1855 | void noinline |
1240 | ev_timer_start (EV_P_ struct ev_timer *w) |
1856 | ev_timer_start (EV_P_ ev_timer *w) |
1241 | { |
1857 | { |
1242 | if (ev_is_active (w)) |
1858 | if (expect_false (ev_is_active (w))) |
1243 | return; |
1859 | return; |
1244 | |
1860 | |
1245 | ((WT)w)->at += mn_now; |
1861 | ((WT)w)->at += mn_now; |
1246 | |
1862 | |
1247 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1863 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1248 | |
1864 | |
1249 | ev_start (EV_A_ (W)w, ++timercnt); |
1865 | ev_start (EV_A_ (W)w, ++timercnt); |
1250 | array_needsize (timers, timermax, timercnt, (void)); |
1866 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
1251 | timers [timercnt - 1] = w; |
1867 | timers [timercnt - 1] = (WT)w; |
1252 | upheap ((WT *)timers, timercnt - 1); |
1868 | upheap (timers, timercnt - 1); |
1253 | |
1869 | |
1254 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1870 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
1255 | } |
1871 | } |
1256 | |
1872 | |
1257 | void |
1873 | void noinline |
1258 | ev_timer_stop (EV_P_ struct ev_timer *w) |
1874 | ev_timer_stop (EV_P_ ev_timer *w) |
1259 | { |
1875 | { |
1260 | ev_clear_pending (EV_A_ (W)w); |
1876 | clear_pending (EV_A_ (W)w); |
1261 | if (!ev_is_active (w)) |
1877 | if (expect_false (!ev_is_active (w))) |
1262 | return; |
1878 | return; |
1263 | |
1879 | |
1264 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1880 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
1265 | |
1881 | |
1266 | if (((W)w)->active < timercnt--) |
1882 | { |
|
|
1883 | int active = ((W)w)->active; |
|
|
1884 | |
|
|
1885 | if (expect_true (--active < --timercnt)) |
1267 | { |
1886 | { |
1268 | timers [((W)w)->active - 1] = timers [timercnt]; |
1887 | timers [active] = timers [timercnt]; |
1269 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1888 | adjustheap (timers, timercnt, active); |
1270 | } |
1889 | } |
|
|
1890 | } |
1271 | |
1891 | |
1272 | ((WT)w)->at = w->repeat; |
1892 | ((WT)w)->at -= mn_now; |
1273 | |
1893 | |
1274 | ev_stop (EV_A_ (W)w); |
1894 | ev_stop (EV_A_ (W)w); |
1275 | } |
1895 | } |
1276 | |
1896 | |
1277 | void |
1897 | void noinline |
1278 | ev_timer_again (EV_P_ struct ev_timer *w) |
1898 | ev_timer_again (EV_P_ ev_timer *w) |
1279 | { |
1899 | { |
1280 | if (ev_is_active (w)) |
1900 | if (ev_is_active (w)) |
1281 | { |
1901 | { |
1282 | if (w->repeat) |
1902 | if (w->repeat) |
1283 | { |
1903 | { |
1284 | ((WT)w)->at = mn_now + w->repeat; |
1904 | ((WT)w)->at = mn_now + w->repeat; |
1285 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1905 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
1286 | } |
1906 | } |
1287 | else |
1907 | else |
1288 | ev_timer_stop (EV_A_ w); |
1908 | ev_timer_stop (EV_A_ w); |
1289 | } |
1909 | } |
1290 | else if (w->repeat) |
1910 | else if (w->repeat) |
|
|
1911 | { |
|
|
1912 | w->at = w->repeat; |
1291 | ev_timer_start (EV_A_ w); |
1913 | ev_timer_start (EV_A_ w); |
|
|
1914 | } |
1292 | } |
1915 | } |
1293 | |
1916 | |
1294 | void |
1917 | #if EV_PERIODIC_ENABLE |
|
|
1918 | void noinline |
1295 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1919 | ev_periodic_start (EV_P_ ev_periodic *w) |
1296 | { |
1920 | { |
1297 | if (ev_is_active (w)) |
1921 | if (expect_false (ev_is_active (w))) |
1298 | return; |
1922 | return; |
1299 | |
1923 | |
|
|
1924 | if (w->reschedule_cb) |
|
|
1925 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1926 | else if (w->interval) |
|
|
1927 | { |
1300 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1928 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1301 | |
|
|
1302 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1929 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1303 | if (w->interval) |
|
|
1304 | ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1930 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1931 | } |
|
|
1932 | else |
|
|
1933 | ((WT)w)->at = w->offset; |
1305 | |
1934 | |
1306 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1935 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1307 | array_needsize (periodics, periodicmax, periodiccnt, (void)); |
1936 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
1308 | periodics [periodiccnt - 1] = w; |
1937 | periodics [periodiccnt - 1] = (WT)w; |
1309 | upheap ((WT *)periodics, periodiccnt - 1); |
1938 | upheap (periodics, periodiccnt - 1); |
1310 | |
1939 | |
1311 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1940 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
1312 | } |
1941 | } |
1313 | |
1942 | |
1314 | void |
1943 | void noinline |
1315 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
1944 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1316 | { |
1945 | { |
1317 | ev_clear_pending (EV_A_ (W)w); |
1946 | clear_pending (EV_A_ (W)w); |
1318 | if (!ev_is_active (w)) |
1947 | if (expect_false (!ev_is_active (w))) |
1319 | return; |
1948 | return; |
1320 | |
1949 | |
1321 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1950 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
1322 | |
1951 | |
1323 | if (((W)w)->active < periodiccnt--) |
1952 | { |
|
|
1953 | int active = ((W)w)->active; |
|
|
1954 | |
|
|
1955 | if (expect_true (--active < --periodiccnt)) |
1324 | { |
1956 | { |
1325 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1957 | periodics [active] = periodics [periodiccnt]; |
1326 | downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1958 | adjustheap (periodics, periodiccnt, active); |
1327 | } |
1959 | } |
|
|
1960 | } |
1328 | |
1961 | |
1329 | ev_stop (EV_A_ (W)w); |
1962 | ev_stop (EV_A_ (W)w); |
1330 | } |
1963 | } |
1331 | |
1964 | |
1332 | void |
1965 | void noinline |
1333 | ev_idle_start (EV_P_ struct ev_idle *w) |
1966 | ev_periodic_again (EV_P_ ev_periodic *w) |
1334 | { |
1967 | { |
1335 | if (ev_is_active (w)) |
1968 | /* TODO: use adjustheap and recalculation */ |
1336 | return; |
|
|
1337 | |
|
|
1338 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1339 | array_needsize (idles, idlemax, idlecnt, (void)); |
|
|
1340 | idles [idlecnt - 1] = w; |
|
|
1341 | } |
|
|
1342 | |
|
|
1343 | void |
|
|
1344 | ev_idle_stop (EV_P_ struct ev_idle *w) |
|
|
1345 | { |
|
|
1346 | ev_clear_pending (EV_A_ (W)w); |
|
|
1347 | if (ev_is_active (w)) |
|
|
1348 | return; |
|
|
1349 | |
|
|
1350 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
|
|
1351 | ev_stop (EV_A_ (W)w); |
1969 | ev_periodic_stop (EV_A_ w); |
|
|
1970 | ev_periodic_start (EV_A_ w); |
1352 | } |
1971 | } |
1353 | |
1972 | #endif |
1354 | void |
|
|
1355 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
|
|
1356 | { |
|
|
1357 | if (ev_is_active (w)) |
|
|
1358 | return; |
|
|
1359 | |
|
|
1360 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1361 | array_needsize (prepares, preparemax, preparecnt, (void)); |
|
|
1362 | prepares [preparecnt - 1] = w; |
|
|
1363 | } |
|
|
1364 | |
|
|
1365 | void |
|
|
1366 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
|
|
1367 | { |
|
|
1368 | ev_clear_pending (EV_A_ (W)w); |
|
|
1369 | if (ev_is_active (w)) |
|
|
1370 | return; |
|
|
1371 | |
|
|
1372 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
|
|
1373 | ev_stop (EV_A_ (W)w); |
|
|
1374 | } |
|
|
1375 | |
|
|
1376 | void |
|
|
1377 | ev_check_start (EV_P_ struct ev_check *w) |
|
|
1378 | { |
|
|
1379 | if (ev_is_active (w)) |
|
|
1380 | return; |
|
|
1381 | |
|
|
1382 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1383 | array_needsize (checks, checkmax, checkcnt, (void)); |
|
|
1384 | checks [checkcnt - 1] = w; |
|
|
1385 | } |
|
|
1386 | |
|
|
1387 | void |
|
|
1388 | ev_check_stop (EV_P_ struct ev_check *w) |
|
|
1389 | { |
|
|
1390 | ev_clear_pending (EV_A_ (W)w); |
|
|
1391 | if (ev_is_active (w)) |
|
|
1392 | return; |
|
|
1393 | |
|
|
1394 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
|
|
1395 | ev_stop (EV_A_ (W)w); |
|
|
1396 | } |
|
|
1397 | |
1973 | |
1398 | #ifndef SA_RESTART |
1974 | #ifndef SA_RESTART |
1399 | # define SA_RESTART 0 |
1975 | # define SA_RESTART 0 |
1400 | #endif |
1976 | #endif |
1401 | |
1977 | |
1402 | void |
1978 | void noinline |
1403 | ev_signal_start (EV_P_ struct ev_signal *w) |
1979 | ev_signal_start (EV_P_ ev_signal *w) |
1404 | { |
1980 | { |
1405 | #if EV_MULTIPLICITY |
1981 | #if EV_MULTIPLICITY |
1406 | assert (("signal watchers are only supported in the default loop", loop == default_loop)); |
1982 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1407 | #endif |
1983 | #endif |
1408 | if (ev_is_active (w)) |
1984 | if (expect_false (ev_is_active (w))) |
1409 | return; |
1985 | return; |
1410 | |
1986 | |
1411 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1987 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1412 | |
1988 | |
|
|
1989 | evpipe_init (EV_A); |
|
|
1990 | |
|
|
1991 | { |
|
|
1992 | #ifndef _WIN32 |
|
|
1993 | sigset_t full, prev; |
|
|
1994 | sigfillset (&full); |
|
|
1995 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
1996 | #endif |
|
|
1997 | |
|
|
1998 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1999 | |
|
|
2000 | #ifndef _WIN32 |
|
|
2001 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
2002 | #endif |
|
|
2003 | } |
|
|
2004 | |
1413 | ev_start (EV_A_ (W)w, 1); |
2005 | ev_start (EV_A_ (W)w, 1); |
1414 | array_needsize (signals, signalmax, w->signum, signals_init); |
|
|
1415 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
2006 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1416 | |
2007 | |
1417 | if (!((WL)w)->next) |
2008 | if (!((WL)w)->next) |
1418 | { |
2009 | { |
1419 | #if WIN32 |
2010 | #if _WIN32 |
1420 | signal (w->signum, sighandler); |
2011 | signal (w->signum, ev_sighandler); |
1421 | #else |
2012 | #else |
1422 | struct sigaction sa; |
2013 | struct sigaction sa; |
1423 | sa.sa_handler = sighandler; |
2014 | sa.sa_handler = ev_sighandler; |
1424 | sigfillset (&sa.sa_mask); |
2015 | sigfillset (&sa.sa_mask); |
1425 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2016 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1426 | sigaction (w->signum, &sa, 0); |
2017 | sigaction (w->signum, &sa, 0); |
1427 | #endif |
2018 | #endif |
1428 | } |
2019 | } |
1429 | } |
2020 | } |
1430 | |
2021 | |
1431 | void |
2022 | void noinline |
1432 | ev_signal_stop (EV_P_ struct ev_signal *w) |
2023 | ev_signal_stop (EV_P_ ev_signal *w) |
1433 | { |
2024 | { |
1434 | ev_clear_pending (EV_A_ (W)w); |
2025 | clear_pending (EV_A_ (W)w); |
1435 | if (!ev_is_active (w)) |
2026 | if (expect_false (!ev_is_active (w))) |
1436 | return; |
2027 | return; |
1437 | |
2028 | |
1438 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
2029 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1439 | ev_stop (EV_A_ (W)w); |
2030 | ev_stop (EV_A_ (W)w); |
1440 | |
2031 | |
1441 | if (!signals [w->signum - 1].head) |
2032 | if (!signals [w->signum - 1].head) |
1442 | signal (w->signum, SIG_DFL); |
2033 | signal (w->signum, SIG_DFL); |
1443 | } |
2034 | } |
1444 | |
2035 | |
1445 | void |
2036 | void |
1446 | ev_child_start (EV_P_ struct ev_child *w) |
2037 | ev_child_start (EV_P_ ev_child *w) |
1447 | { |
2038 | { |
1448 | #if EV_MULTIPLICITY |
2039 | #if EV_MULTIPLICITY |
1449 | assert (("child watchers are only supported in the default loop", loop == default_loop)); |
2040 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1450 | #endif |
2041 | #endif |
1451 | if (ev_is_active (w)) |
2042 | if (expect_false (ev_is_active (w))) |
1452 | return; |
2043 | return; |
1453 | |
2044 | |
1454 | ev_start (EV_A_ (W)w, 1); |
2045 | ev_start (EV_A_ (W)w, 1); |
1455 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
2046 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1456 | } |
2047 | } |
1457 | |
2048 | |
1458 | void |
2049 | void |
1459 | ev_child_stop (EV_P_ struct ev_child *w) |
2050 | ev_child_stop (EV_P_ ev_child *w) |
1460 | { |
2051 | { |
1461 | ev_clear_pending (EV_A_ (W)w); |
2052 | clear_pending (EV_A_ (W)w); |
1462 | if (ev_is_active (w)) |
2053 | if (expect_false (!ev_is_active (w))) |
1463 | return; |
2054 | return; |
1464 | |
2055 | |
1465 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
2056 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1466 | ev_stop (EV_A_ (W)w); |
2057 | ev_stop (EV_A_ (W)w); |
1467 | } |
2058 | } |
1468 | |
2059 | |
|
|
2060 | #if EV_STAT_ENABLE |
|
|
2061 | |
|
|
2062 | # ifdef _WIN32 |
|
|
2063 | # undef lstat |
|
|
2064 | # define lstat(a,b) _stati64 (a,b) |
|
|
2065 | # endif |
|
|
2066 | |
|
|
2067 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2068 | #define MIN_STAT_INTERVAL 0.1074891 |
|
|
2069 | |
|
|
2070 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
|
|
2071 | |
|
|
2072 | #if EV_USE_INOTIFY |
|
|
2073 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
2074 | |
|
|
2075 | static void noinline |
|
|
2076 | infy_add (EV_P_ ev_stat *w) |
|
|
2077 | { |
|
|
2078 | 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); |
|
|
2079 | |
|
|
2080 | if (w->wd < 0) |
|
|
2081 | { |
|
|
2082 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2083 | |
|
|
2084 | /* monitor some parent directory for speedup hints */ |
|
|
2085 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
|
|
2086 | { |
|
|
2087 | char path [4096]; |
|
|
2088 | strcpy (path, w->path); |
|
|
2089 | |
|
|
2090 | do |
|
|
2091 | { |
|
|
2092 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
|
|
2093 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
|
|
2094 | |
|
|
2095 | char *pend = strrchr (path, '/'); |
|
|
2096 | |
|
|
2097 | if (!pend) |
|
|
2098 | break; /* whoops, no '/', complain to your admin */ |
|
|
2099 | |
|
|
2100 | *pend = 0; |
|
|
2101 | w->wd = inotify_add_watch (fs_fd, path, mask); |
|
|
2102 | } |
|
|
2103 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
|
|
2104 | } |
|
|
2105 | } |
|
|
2106 | else |
|
|
2107 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2108 | |
|
|
2109 | if (w->wd >= 0) |
|
|
2110 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2111 | } |
|
|
2112 | |
|
|
2113 | static void noinline |
|
|
2114 | infy_del (EV_P_ ev_stat *w) |
|
|
2115 | { |
|
|
2116 | int slot; |
|
|
2117 | int wd = w->wd; |
|
|
2118 | |
|
|
2119 | if (wd < 0) |
|
|
2120 | return; |
|
|
2121 | |
|
|
2122 | w->wd = -2; |
|
|
2123 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
|
|
2124 | wlist_del (&fs_hash [slot].head, (WL)w); |
|
|
2125 | |
|
|
2126 | /* remove this watcher, if others are watching it, they will rearm */ |
|
|
2127 | inotify_rm_watch (fs_fd, wd); |
|
|
2128 | } |
|
|
2129 | |
|
|
2130 | static void noinline |
|
|
2131 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
|
|
2132 | { |
|
|
2133 | if (slot < 0) |
|
|
2134 | /* overflow, need to check for all hahs slots */ |
|
|
2135 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2136 | infy_wd (EV_A_ slot, wd, ev); |
|
|
2137 | else |
|
|
2138 | { |
|
|
2139 | WL w_; |
|
|
2140 | |
|
|
2141 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
|
|
2142 | { |
|
|
2143 | ev_stat *w = (ev_stat *)w_; |
|
|
2144 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
|
|
2145 | |
|
|
2146 | if (w->wd == wd || wd == -1) |
|
|
2147 | { |
|
|
2148 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
|
|
2149 | { |
|
|
2150 | w->wd = -1; |
|
|
2151 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2152 | } |
|
|
2153 | |
|
|
2154 | stat_timer_cb (EV_A_ &w->timer, 0); |
|
|
2155 | } |
|
|
2156 | } |
|
|
2157 | } |
|
|
2158 | } |
|
|
2159 | |
|
|
2160 | static void |
|
|
2161 | infy_cb (EV_P_ ev_io *w, int revents) |
|
|
2162 | { |
|
|
2163 | char buf [EV_INOTIFY_BUFSIZE]; |
|
|
2164 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2165 | int ofs; |
|
|
2166 | int len = read (fs_fd, buf, sizeof (buf)); |
|
|
2167 | |
|
|
2168 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
|
|
2169 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
2170 | } |
|
|
2171 | |
|
|
2172 | void inline_size |
|
|
2173 | infy_init (EV_P) |
|
|
2174 | { |
|
|
2175 | if (fs_fd != -2) |
|
|
2176 | return; |
|
|
2177 | |
|
|
2178 | fs_fd = inotify_init (); |
|
|
2179 | |
|
|
2180 | if (fs_fd >= 0) |
|
|
2181 | { |
|
|
2182 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
|
|
2183 | ev_set_priority (&fs_w, EV_MAXPRI); |
|
|
2184 | ev_io_start (EV_A_ &fs_w); |
|
|
2185 | } |
|
|
2186 | } |
|
|
2187 | |
|
|
2188 | void inline_size |
|
|
2189 | infy_fork (EV_P) |
|
|
2190 | { |
|
|
2191 | int slot; |
|
|
2192 | |
|
|
2193 | if (fs_fd < 0) |
|
|
2194 | return; |
|
|
2195 | |
|
|
2196 | close (fs_fd); |
|
|
2197 | fs_fd = inotify_init (); |
|
|
2198 | |
|
|
2199 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2200 | { |
|
|
2201 | WL w_ = fs_hash [slot].head; |
|
|
2202 | fs_hash [slot].head = 0; |
|
|
2203 | |
|
|
2204 | while (w_) |
|
|
2205 | { |
|
|
2206 | ev_stat *w = (ev_stat *)w_; |
|
|
2207 | w_ = w_->next; /* lets us add this watcher */ |
|
|
2208 | |
|
|
2209 | w->wd = -1; |
|
|
2210 | |
|
|
2211 | if (fs_fd >= 0) |
|
|
2212 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2213 | else |
|
|
2214 | ev_timer_start (EV_A_ &w->timer); |
|
|
2215 | } |
|
|
2216 | |
|
|
2217 | } |
|
|
2218 | } |
|
|
2219 | |
|
|
2220 | #endif |
|
|
2221 | |
|
|
2222 | void |
|
|
2223 | ev_stat_stat (EV_P_ ev_stat *w) |
|
|
2224 | { |
|
|
2225 | if (lstat (w->path, &w->attr) < 0) |
|
|
2226 | w->attr.st_nlink = 0; |
|
|
2227 | else if (!w->attr.st_nlink) |
|
|
2228 | w->attr.st_nlink = 1; |
|
|
2229 | } |
|
|
2230 | |
|
|
2231 | static void noinline |
|
|
2232 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
2233 | { |
|
|
2234 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
2235 | |
|
|
2236 | /* we copy this here each the time so that */ |
|
|
2237 | /* prev has the old value when the callback gets invoked */ |
|
|
2238 | w->prev = w->attr; |
|
|
2239 | ev_stat_stat (EV_A_ w); |
|
|
2240 | |
|
|
2241 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
|
|
2242 | if ( |
|
|
2243 | w->prev.st_dev != w->attr.st_dev |
|
|
2244 | || w->prev.st_ino != w->attr.st_ino |
|
|
2245 | || w->prev.st_mode != w->attr.st_mode |
|
|
2246 | || w->prev.st_nlink != w->attr.st_nlink |
|
|
2247 | || w->prev.st_uid != w->attr.st_uid |
|
|
2248 | || w->prev.st_gid != w->attr.st_gid |
|
|
2249 | || w->prev.st_rdev != w->attr.st_rdev |
|
|
2250 | || w->prev.st_size != w->attr.st_size |
|
|
2251 | || w->prev.st_atime != w->attr.st_atime |
|
|
2252 | || w->prev.st_mtime != w->attr.st_mtime |
|
|
2253 | || w->prev.st_ctime != w->attr.st_ctime |
|
|
2254 | ) { |
|
|
2255 | #if EV_USE_INOTIFY |
|
|
2256 | infy_del (EV_A_ w); |
|
|
2257 | infy_add (EV_A_ w); |
|
|
2258 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2259 | #endif |
|
|
2260 | |
|
|
2261 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
2262 | } |
|
|
2263 | } |
|
|
2264 | |
|
|
2265 | void |
|
|
2266 | ev_stat_start (EV_P_ ev_stat *w) |
|
|
2267 | { |
|
|
2268 | if (expect_false (ev_is_active (w))) |
|
|
2269 | return; |
|
|
2270 | |
|
|
2271 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2272 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2273 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2274 | |
|
|
2275 | ev_stat_stat (EV_A_ w); |
|
|
2276 | |
|
|
2277 | if (w->interval < MIN_STAT_INTERVAL) |
|
|
2278 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2279 | |
|
|
2280 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
|
|
2281 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
2282 | |
|
|
2283 | #if EV_USE_INOTIFY |
|
|
2284 | infy_init (EV_A); |
|
|
2285 | |
|
|
2286 | if (fs_fd >= 0) |
|
|
2287 | infy_add (EV_A_ w); |
|
|
2288 | else |
|
|
2289 | #endif |
|
|
2290 | ev_timer_start (EV_A_ &w->timer); |
|
|
2291 | |
|
|
2292 | ev_start (EV_A_ (W)w, 1); |
|
|
2293 | } |
|
|
2294 | |
|
|
2295 | void |
|
|
2296 | ev_stat_stop (EV_P_ ev_stat *w) |
|
|
2297 | { |
|
|
2298 | clear_pending (EV_A_ (W)w); |
|
|
2299 | if (expect_false (!ev_is_active (w))) |
|
|
2300 | return; |
|
|
2301 | |
|
|
2302 | #if EV_USE_INOTIFY |
|
|
2303 | infy_del (EV_A_ w); |
|
|
2304 | #endif |
|
|
2305 | ev_timer_stop (EV_A_ &w->timer); |
|
|
2306 | |
|
|
2307 | ev_stop (EV_A_ (W)w); |
|
|
2308 | } |
|
|
2309 | #endif |
|
|
2310 | |
|
|
2311 | #if EV_IDLE_ENABLE |
|
|
2312 | void |
|
|
2313 | ev_idle_start (EV_P_ ev_idle *w) |
|
|
2314 | { |
|
|
2315 | if (expect_false (ev_is_active (w))) |
|
|
2316 | return; |
|
|
2317 | |
|
|
2318 | pri_adjust (EV_A_ (W)w); |
|
|
2319 | |
|
|
2320 | { |
|
|
2321 | int active = ++idlecnt [ABSPRI (w)]; |
|
|
2322 | |
|
|
2323 | ++idleall; |
|
|
2324 | ev_start (EV_A_ (W)w, active); |
|
|
2325 | |
|
|
2326 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
|
|
2327 | idles [ABSPRI (w)][active - 1] = w; |
|
|
2328 | } |
|
|
2329 | } |
|
|
2330 | |
|
|
2331 | void |
|
|
2332 | ev_idle_stop (EV_P_ ev_idle *w) |
|
|
2333 | { |
|
|
2334 | clear_pending (EV_A_ (W)w); |
|
|
2335 | if (expect_false (!ev_is_active (w))) |
|
|
2336 | return; |
|
|
2337 | |
|
|
2338 | { |
|
|
2339 | int active = ((W)w)->active; |
|
|
2340 | |
|
|
2341 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
|
|
2342 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
|
|
2343 | |
|
|
2344 | ev_stop (EV_A_ (W)w); |
|
|
2345 | --idleall; |
|
|
2346 | } |
|
|
2347 | } |
|
|
2348 | #endif |
|
|
2349 | |
|
|
2350 | void |
|
|
2351 | ev_prepare_start (EV_P_ ev_prepare *w) |
|
|
2352 | { |
|
|
2353 | if (expect_false (ev_is_active (w))) |
|
|
2354 | return; |
|
|
2355 | |
|
|
2356 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
2357 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
|
|
2358 | prepares [preparecnt - 1] = w; |
|
|
2359 | } |
|
|
2360 | |
|
|
2361 | void |
|
|
2362 | ev_prepare_stop (EV_P_ ev_prepare *w) |
|
|
2363 | { |
|
|
2364 | clear_pending (EV_A_ (W)w); |
|
|
2365 | if (expect_false (!ev_is_active (w))) |
|
|
2366 | return; |
|
|
2367 | |
|
|
2368 | { |
|
|
2369 | int active = ((W)w)->active; |
|
|
2370 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
2371 | ((W)prepares [active - 1])->active = active; |
|
|
2372 | } |
|
|
2373 | |
|
|
2374 | ev_stop (EV_A_ (W)w); |
|
|
2375 | } |
|
|
2376 | |
|
|
2377 | void |
|
|
2378 | ev_check_start (EV_P_ ev_check *w) |
|
|
2379 | { |
|
|
2380 | if (expect_false (ev_is_active (w))) |
|
|
2381 | return; |
|
|
2382 | |
|
|
2383 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
2384 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
|
|
2385 | checks [checkcnt - 1] = w; |
|
|
2386 | } |
|
|
2387 | |
|
|
2388 | void |
|
|
2389 | ev_check_stop (EV_P_ ev_check *w) |
|
|
2390 | { |
|
|
2391 | clear_pending (EV_A_ (W)w); |
|
|
2392 | if (expect_false (!ev_is_active (w))) |
|
|
2393 | return; |
|
|
2394 | |
|
|
2395 | { |
|
|
2396 | int active = ((W)w)->active; |
|
|
2397 | checks [active - 1] = checks [--checkcnt]; |
|
|
2398 | ((W)checks [active - 1])->active = active; |
|
|
2399 | } |
|
|
2400 | |
|
|
2401 | ev_stop (EV_A_ (W)w); |
|
|
2402 | } |
|
|
2403 | |
|
|
2404 | #if EV_EMBED_ENABLE |
|
|
2405 | void noinline |
|
|
2406 | ev_embed_sweep (EV_P_ ev_embed *w) |
|
|
2407 | { |
|
|
2408 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2409 | } |
|
|
2410 | |
|
|
2411 | static void |
|
|
2412 | embed_io_cb (EV_P_ ev_io *io, int revents) |
|
|
2413 | { |
|
|
2414 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
|
|
2415 | |
|
|
2416 | if (ev_cb (w)) |
|
|
2417 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
|
|
2418 | else |
|
|
2419 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2420 | } |
|
|
2421 | |
|
|
2422 | static void |
|
|
2423 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
2424 | { |
|
|
2425 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
2426 | |
|
|
2427 | { |
|
|
2428 | struct ev_loop *loop = w->other; |
|
|
2429 | |
|
|
2430 | while (fdchangecnt) |
|
|
2431 | { |
|
|
2432 | fd_reify (EV_A); |
|
|
2433 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2434 | } |
|
|
2435 | } |
|
|
2436 | } |
|
|
2437 | |
|
|
2438 | #if 0 |
|
|
2439 | static void |
|
|
2440 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
2441 | { |
|
|
2442 | ev_idle_stop (EV_A_ idle); |
|
|
2443 | } |
|
|
2444 | #endif |
|
|
2445 | |
|
|
2446 | void |
|
|
2447 | ev_embed_start (EV_P_ ev_embed *w) |
|
|
2448 | { |
|
|
2449 | if (expect_false (ev_is_active (w))) |
|
|
2450 | return; |
|
|
2451 | |
|
|
2452 | { |
|
|
2453 | struct ev_loop *loop = w->other; |
|
|
2454 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
|
|
2455 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
|
|
2456 | } |
|
|
2457 | |
|
|
2458 | ev_set_priority (&w->io, ev_priority (w)); |
|
|
2459 | ev_io_start (EV_A_ &w->io); |
|
|
2460 | |
|
|
2461 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
2462 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
2463 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
2464 | |
|
|
2465 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
2466 | |
|
|
2467 | ev_start (EV_A_ (W)w, 1); |
|
|
2468 | } |
|
|
2469 | |
|
|
2470 | void |
|
|
2471 | ev_embed_stop (EV_P_ ev_embed *w) |
|
|
2472 | { |
|
|
2473 | clear_pending (EV_A_ (W)w); |
|
|
2474 | if (expect_false (!ev_is_active (w))) |
|
|
2475 | return; |
|
|
2476 | |
|
|
2477 | ev_io_stop (EV_A_ &w->io); |
|
|
2478 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
2479 | |
|
|
2480 | ev_stop (EV_A_ (W)w); |
|
|
2481 | } |
|
|
2482 | #endif |
|
|
2483 | |
|
|
2484 | #if EV_FORK_ENABLE |
|
|
2485 | void |
|
|
2486 | ev_fork_start (EV_P_ ev_fork *w) |
|
|
2487 | { |
|
|
2488 | if (expect_false (ev_is_active (w))) |
|
|
2489 | return; |
|
|
2490 | |
|
|
2491 | ev_start (EV_A_ (W)w, ++forkcnt); |
|
|
2492 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
|
|
2493 | forks [forkcnt - 1] = w; |
|
|
2494 | } |
|
|
2495 | |
|
|
2496 | void |
|
|
2497 | ev_fork_stop (EV_P_ ev_fork *w) |
|
|
2498 | { |
|
|
2499 | clear_pending (EV_A_ (W)w); |
|
|
2500 | if (expect_false (!ev_is_active (w))) |
|
|
2501 | return; |
|
|
2502 | |
|
|
2503 | { |
|
|
2504 | int active = ((W)w)->active; |
|
|
2505 | forks [active - 1] = forks [--forkcnt]; |
|
|
2506 | ((W)forks [active - 1])->active = active; |
|
|
2507 | } |
|
|
2508 | |
|
|
2509 | ev_stop (EV_A_ (W)w); |
|
|
2510 | } |
|
|
2511 | #endif |
|
|
2512 | |
|
|
2513 | #if EV_ASYNC_ENABLE |
|
|
2514 | void |
|
|
2515 | ev_async_start (EV_P_ ev_async *w) |
|
|
2516 | { |
|
|
2517 | if (expect_false (ev_is_active (w))) |
|
|
2518 | return; |
|
|
2519 | |
|
|
2520 | evpipe_init (EV_A); |
|
|
2521 | |
|
|
2522 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
2523 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
2524 | asyncs [asynccnt - 1] = w; |
|
|
2525 | } |
|
|
2526 | |
|
|
2527 | void |
|
|
2528 | ev_async_stop (EV_P_ ev_async *w) |
|
|
2529 | { |
|
|
2530 | clear_pending (EV_A_ (W)w); |
|
|
2531 | if (expect_false (!ev_is_active (w))) |
|
|
2532 | return; |
|
|
2533 | |
|
|
2534 | { |
|
|
2535 | int active = ((W)w)->active; |
|
|
2536 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
2537 | ((W)asyncs [active - 1])->active = active; |
|
|
2538 | } |
|
|
2539 | |
|
|
2540 | ev_stop (EV_A_ (W)w); |
|
|
2541 | } |
|
|
2542 | |
|
|
2543 | void |
|
|
2544 | ev_async_send (EV_P_ ev_async *w) |
|
|
2545 | { |
|
|
2546 | w->sent = 1; |
|
|
2547 | evpipe_write (EV_A_ &gotasync); |
|
|
2548 | } |
|
|
2549 | #endif |
|
|
2550 | |
1469 | /*****************************************************************************/ |
2551 | /*****************************************************************************/ |
1470 | |
2552 | |
1471 | struct ev_once |
2553 | struct ev_once |
1472 | { |
2554 | { |
1473 | struct ev_io io; |
2555 | ev_io io; |
1474 | struct ev_timer to; |
2556 | ev_timer to; |
1475 | void (*cb)(int revents, void *arg); |
2557 | void (*cb)(int revents, void *arg); |
1476 | void *arg; |
2558 | void *arg; |
1477 | }; |
2559 | }; |
1478 | |
2560 | |
1479 | static void |
2561 | static void |
… | |
… | |
1488 | |
2570 | |
1489 | cb (revents, arg); |
2571 | cb (revents, arg); |
1490 | } |
2572 | } |
1491 | |
2573 | |
1492 | static void |
2574 | static void |
1493 | once_cb_io (EV_P_ struct ev_io *w, int revents) |
2575 | once_cb_io (EV_P_ ev_io *w, int revents) |
1494 | { |
2576 | { |
1495 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
2577 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1496 | } |
2578 | } |
1497 | |
2579 | |
1498 | static void |
2580 | static void |
1499 | once_cb_to (EV_P_ struct ev_timer *w, int revents) |
2581 | once_cb_to (EV_P_ ev_timer *w, int revents) |
1500 | { |
2582 | { |
1501 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
2583 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1502 | } |
2584 | } |
1503 | |
2585 | |
1504 | void |
2586 | void |
1505 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2587 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1506 | { |
2588 | { |
1507 | struct ev_once *once = ev_malloc (sizeof (struct ev_once)); |
2589 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1508 | |
2590 | |
1509 | if (!once) |
2591 | if (expect_false (!once)) |
|
|
2592 | { |
1510 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
2593 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1511 | else |
2594 | return; |
1512 | { |
2595 | } |
|
|
2596 | |
1513 | once->cb = cb; |
2597 | once->cb = cb; |
1514 | once->arg = arg; |
2598 | once->arg = arg; |
1515 | |
2599 | |
1516 | ev_watcher_init (&once->io, once_cb_io); |
2600 | ev_init (&once->io, once_cb_io); |
1517 | if (fd >= 0) |
2601 | if (fd >= 0) |
1518 | { |
2602 | { |
1519 | ev_io_set (&once->io, fd, events); |
2603 | ev_io_set (&once->io, fd, events); |
1520 | ev_io_start (EV_A_ &once->io); |
2604 | ev_io_start (EV_A_ &once->io); |
1521 | } |
2605 | } |
1522 | |
2606 | |
1523 | ev_watcher_init (&once->to, once_cb_to); |
2607 | ev_init (&once->to, once_cb_to); |
1524 | if (timeout >= 0.) |
2608 | if (timeout >= 0.) |
1525 | { |
2609 | { |
1526 | ev_timer_set (&once->to, timeout, 0.); |
2610 | ev_timer_set (&once->to, timeout, 0.); |
1527 | ev_timer_start (EV_A_ &once->to); |
2611 | ev_timer_start (EV_A_ &once->to); |
1528 | } |
|
|
1529 | } |
2612 | } |
1530 | } |
2613 | } |
1531 | |
2614 | |
|
|
2615 | #if EV_MULTIPLICITY |
|
|
2616 | #include "ev_wrap.h" |
|
|
2617 | #endif |
|
|
2618 | |
|
|
2619 | #ifdef __cplusplus |
|
|
2620 | } |
|
|
2621 | #endif |
|
|
2622 | |