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> |
… | |
… | |
66 | #include <sys/types.h> |
143 | #include <sys/types.h> |
67 | #include <time.h> |
144 | #include <time.h> |
68 | |
145 | |
69 | #include <signal.h> |
146 | #include <signal.h> |
70 | |
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 | |
71 | #ifndef WIN32 |
154 | #ifndef _WIN32 |
72 | # include <unistd.h> |
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73 | # include <sys/time.h> |
155 | # include <sys/time.h> |
74 | # 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 |
75 | #endif |
163 | # endif |
76 | /**/ |
164 | #endif |
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165 | |
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166 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
77 | |
167 | |
78 | #ifndef EV_USE_MONOTONIC |
168 | #ifndef EV_USE_MONOTONIC |
79 | # 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 |
80 | #endif |
178 | #endif |
81 | |
179 | |
82 | #ifndef EV_USE_SELECT |
180 | #ifndef EV_USE_SELECT |
83 | # define EV_USE_SELECT 1 |
181 | # define EV_USE_SELECT 1 |
84 | #endif |
182 | #endif |
85 | |
183 | |
86 | #ifndef EV_USE_POLL |
184 | #ifndef EV_USE_POLL |
87 | # 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 |
88 | #endif |
190 | #endif |
89 | |
191 | |
90 | #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 |
91 | # define EV_USE_EPOLL 0 |
196 | # define EV_USE_EPOLL 0 |
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197 | # endif |
92 | #endif |
198 | #endif |
93 | |
199 | |
94 | #ifndef EV_USE_KQUEUE |
200 | #ifndef EV_USE_KQUEUE |
95 | # define EV_USE_KQUEUE 0 |
201 | # define EV_USE_KQUEUE 0 |
96 | #endif |
202 | #endif |
97 | |
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 | |
98 | #ifndef EV_USE_WIN32 |
208 | #ifndef EV_USE_INOTIFY |
99 | # ifdef WIN32 |
209 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
100 | # define EV_USE_WIN32 0 /* it does not exist, use select */ |
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101 | # undef EV_USE_SELECT |
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102 | # define EV_USE_SELECT 1 |
210 | # define EV_USE_INOTIFY 1 |
103 | # else |
211 | # else |
104 | # define EV_USE_WIN32 0 |
212 | # define EV_USE_INOTIFY 0 |
105 | # endif |
213 | # endif |
106 | #endif |
214 | #endif |
107 | |
215 | |
108 | #ifndef EV_USE_REALTIME |
216 | #ifndef EV_PID_HASHSIZE |
109 | # 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 |
110 | #endif |
221 | # endif |
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222 | #endif |
111 | |
223 | |
112 | /**/ |
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 */ |
113 | |
241 | |
114 | #ifndef CLOCK_MONOTONIC |
242 | #ifndef CLOCK_MONOTONIC |
115 | # undef EV_USE_MONOTONIC |
243 | # undef EV_USE_MONOTONIC |
116 | # define EV_USE_MONOTONIC 0 |
244 | # define EV_USE_MONOTONIC 0 |
117 | #endif |
245 | #endif |
… | |
… | |
119 | #ifndef CLOCK_REALTIME |
247 | #ifndef CLOCK_REALTIME |
120 | # undef EV_USE_REALTIME |
248 | # undef EV_USE_REALTIME |
121 | # define EV_USE_REALTIME 0 |
249 | # define EV_USE_REALTIME 0 |
122 | #endif |
250 | #endif |
123 | |
251 | |
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252 | #if !EV_STAT_ENABLE |
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253 | # undef EV_USE_INOTIFY |
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254 | # define EV_USE_INOTIFY 0 |
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255 | #endif |
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256 | |
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257 | #if !EV_USE_NANOSLEEP |
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258 | # ifndef _WIN32 |
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259 | # include <sys/select.h> |
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260 | # endif |
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261 | #endif |
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262 | |
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263 | #if EV_USE_INOTIFY |
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264 | # include <sys/inotify.h> |
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265 | #endif |
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266 | |
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267 | #if EV_SELECT_IS_WINSOCKET |
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268 | # include <winsock.h> |
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269 | #endif |
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270 | |
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271 | #if EV_USE_EVENTFD |
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272 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
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273 | # include <stdint.h> |
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274 | # ifdef __cplusplus |
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275 | extern "C" { |
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276 | # endif |
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277 | int eventfd (unsigned int initval, int flags); |
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278 | # ifdef __cplusplus |
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279 | } |
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280 | # endif |
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281 | #endif |
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282 | |
124 | /**/ |
283 | /**/ |
125 | |
284 | |
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285 | /* |
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286 | * This is used to avoid floating point rounding problems. |
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287 | * It is added to ev_rt_now when scheduling periodics |
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288 | * to ensure progress, time-wise, even when rounding |
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289 | * errors are against us. |
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290 | * This value is good at least till the year 4000. |
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291 | * Better solutions welcome. |
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292 | */ |
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293 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
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294 | |
126 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
295 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
127 | #define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */ |
296 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
128 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
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129 | /*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ |
297 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
130 | |
298 | |
131 | #include "ev.h" |
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132 | |
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133 | #if __GNUC__ >= 3 |
299 | #if __GNUC__ >= 4 |
134 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
300 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
135 | # define inline inline |
301 | # define noinline __attribute__ ((noinline)) |
136 | #else |
302 | #else |
137 | # define expect(expr,value) (expr) |
303 | # define expect(expr,value) (expr) |
138 | # define inline static |
304 | # define noinline |
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305 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
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306 | # define inline |
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307 | # endif |
139 | #endif |
308 | #endif |
140 | |
309 | |
141 | #define expect_false(expr) expect ((expr) != 0, 0) |
310 | #define expect_false(expr) expect ((expr) != 0, 0) |
142 | #define expect_true(expr) expect ((expr) != 0, 1) |
311 | #define expect_true(expr) expect ((expr) != 0, 1) |
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312 | #define inline_size static inline |
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313 | |
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314 | #if EV_MINIMAL |
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315 | # define inline_speed static noinline |
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316 | #else |
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317 | # define inline_speed static inline |
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318 | #endif |
143 | |
319 | |
144 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
320 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
145 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
321 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
146 | |
322 | |
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323 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
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324 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
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325 | |
147 | typedef struct ev_watcher *W; |
326 | typedef ev_watcher *W; |
148 | typedef struct ev_watcher_list *WL; |
327 | typedef ev_watcher_list *WL; |
149 | typedef struct ev_watcher_time *WT; |
328 | typedef ev_watcher_time *WT; |
150 | |
329 | |
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330 | #define ev_active(w) ((W)(w))->active |
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331 | #define ev_at(w) ((WT)(w))->at |
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332 | |
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333 | #if EV_USE_MONOTONIC |
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334 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
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335 | /* giving it a reasonably high chance of working on typical architetcures */ |
151 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
336 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
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337 | #endif |
152 | |
338 | |
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339 | #ifdef _WIN32 |
153 | #include "ev_win32.c" |
340 | # include "ev_win32.c" |
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341 | #endif |
154 | |
342 | |
155 | /*****************************************************************************/ |
343 | /*****************************************************************************/ |
156 | |
344 | |
157 | static void (*syserr_cb)(const char *msg); |
345 | static void (*syserr_cb)(const char *msg); |
158 | |
346 | |
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347 | void |
159 | void ev_set_syserr_cb (void (*cb)(const char *msg)) |
348 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
160 | { |
349 | { |
161 | syserr_cb = cb; |
350 | syserr_cb = cb; |
162 | } |
351 | } |
163 | |
352 | |
164 | static void |
353 | static void noinline |
165 | syserr (const char *msg) |
354 | syserr (const char *msg) |
166 | { |
355 | { |
167 | if (!msg) |
356 | if (!msg) |
168 | msg = "(libev) system error"; |
357 | msg = "(libev) system error"; |
169 | |
358 | |
… | |
… | |
174 | perror (msg); |
363 | perror (msg); |
175 | abort (); |
364 | abort (); |
176 | } |
365 | } |
177 | } |
366 | } |
178 | |
367 | |
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368 | static void * |
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369 | ev_realloc_emul (void *ptr, long size) |
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370 | { |
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371 | /* some systems, notably openbsd and darwin, fail to properly |
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372 | * implement realloc (x, 0) (as required by both ansi c-98 and |
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373 | * the single unix specification, so work around them here. |
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374 | */ |
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375 | |
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376 | if (size) |
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377 | return realloc (ptr, size); |
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378 | |
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379 | free (ptr); |
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380 | return 0; |
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381 | } |
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382 | |
179 | static void *(*alloc)(void *ptr, long size); |
383 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
180 | |
384 | |
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385 | void |
181 | void ev_set_allocator (void *(*cb)(void *ptr, long size)) |
386 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
182 | { |
387 | { |
183 | alloc = cb; |
388 | alloc = cb; |
184 | } |
389 | } |
185 | |
390 | |
186 | static void * |
391 | inline_speed void * |
187 | ev_realloc (void *ptr, long size) |
392 | ev_realloc (void *ptr, long size) |
188 | { |
393 | { |
189 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
394 | ptr = alloc (ptr, size); |
190 | |
395 | |
191 | if (!ptr && size) |
396 | if (!ptr && size) |
192 | { |
397 | { |
193 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
398 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
194 | abort (); |
399 | abort (); |
… | |
… | |
205 | typedef struct |
410 | typedef struct |
206 | { |
411 | { |
207 | WL head; |
412 | WL head; |
208 | unsigned char events; |
413 | unsigned char events; |
209 | unsigned char reify; |
414 | unsigned char reify; |
|
|
415 | #if EV_SELECT_IS_WINSOCKET |
|
|
416 | SOCKET handle; |
|
|
417 | #endif |
210 | } ANFD; |
418 | } ANFD; |
211 | |
419 | |
212 | typedef struct |
420 | typedef struct |
213 | { |
421 | { |
214 | W w; |
422 | W w; |
215 | int events; |
423 | int events; |
216 | } ANPENDING; |
424 | } ANPENDING; |
217 | |
425 | |
|
|
426 | #if EV_USE_INOTIFY |
|
|
427 | typedef struct |
|
|
428 | { |
|
|
429 | WL head; |
|
|
430 | } ANFS; |
|
|
431 | #endif |
|
|
432 | |
218 | #if EV_MULTIPLICITY |
433 | #if EV_MULTIPLICITY |
219 | |
434 | |
220 | struct ev_loop |
435 | struct ev_loop |
221 | { |
436 | { |
|
|
437 | ev_tstamp ev_rt_now; |
|
|
438 | #define ev_rt_now ((loop)->ev_rt_now) |
222 | # define VAR(name,decl) decl; |
439 | #define VAR(name,decl) decl; |
223 | # include "ev_vars.h" |
440 | #include "ev_vars.h" |
224 | }; |
|
|
225 | # undef VAR |
441 | #undef VAR |
|
|
442 | }; |
226 | # include "ev_wrap.h" |
443 | #include "ev_wrap.h" |
|
|
444 | |
|
|
445 | static struct ev_loop default_loop_struct; |
|
|
446 | struct ev_loop *ev_default_loop_ptr; |
227 | |
447 | |
228 | #else |
448 | #else |
229 | |
449 | |
|
|
450 | ev_tstamp ev_rt_now; |
230 | # define VAR(name,decl) static decl; |
451 | #define VAR(name,decl) static decl; |
231 | # include "ev_vars.h" |
452 | #include "ev_vars.h" |
232 | # undef VAR |
453 | #undef VAR |
|
|
454 | |
|
|
455 | static int ev_default_loop_ptr; |
233 | |
456 | |
234 | #endif |
457 | #endif |
235 | |
458 | |
236 | /*****************************************************************************/ |
459 | /*****************************************************************************/ |
237 | |
460 | |
238 | inline ev_tstamp |
461 | ev_tstamp |
239 | ev_time (void) |
462 | ev_time (void) |
240 | { |
463 | { |
241 | #if EV_USE_REALTIME |
464 | #if EV_USE_REALTIME |
242 | struct timespec ts; |
465 | struct timespec ts; |
243 | clock_gettime (CLOCK_REALTIME, &ts); |
466 | clock_gettime (CLOCK_REALTIME, &ts); |
… | |
… | |
247 | gettimeofday (&tv, 0); |
470 | gettimeofday (&tv, 0); |
248 | return tv.tv_sec + tv.tv_usec * 1e-6; |
471 | return tv.tv_sec + tv.tv_usec * 1e-6; |
249 | #endif |
472 | #endif |
250 | } |
473 | } |
251 | |
474 | |
252 | inline ev_tstamp |
475 | ev_tstamp inline_size |
253 | get_clock (void) |
476 | get_clock (void) |
254 | { |
477 | { |
255 | #if EV_USE_MONOTONIC |
478 | #if EV_USE_MONOTONIC |
256 | if (expect_true (have_monotonic)) |
479 | if (expect_true (have_monotonic)) |
257 | { |
480 | { |
… | |
… | |
262 | #endif |
485 | #endif |
263 | |
486 | |
264 | return ev_time (); |
487 | return ev_time (); |
265 | } |
488 | } |
266 | |
489 | |
|
|
490 | #if EV_MULTIPLICITY |
267 | ev_tstamp |
491 | ev_tstamp |
268 | ev_now (EV_P) |
492 | ev_now (EV_P) |
269 | { |
493 | { |
270 | return rt_now; |
494 | return ev_rt_now; |
271 | } |
495 | } |
|
|
496 | #endif |
272 | |
497 | |
273 | #define array_roundsize(type,n) ((n) | 4 & ~3) |
498 | void |
|
|
499 | ev_sleep (ev_tstamp delay) |
|
|
500 | { |
|
|
501 | if (delay > 0.) |
|
|
502 | { |
|
|
503 | #if EV_USE_NANOSLEEP |
|
|
504 | struct timespec ts; |
|
|
505 | |
|
|
506 | ts.tv_sec = (time_t)delay; |
|
|
507 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
508 | |
|
|
509 | nanosleep (&ts, 0); |
|
|
510 | #elif defined(_WIN32) |
|
|
511 | Sleep ((unsigned long)(delay * 1e3)); |
|
|
512 | #else |
|
|
513 | struct timeval tv; |
|
|
514 | |
|
|
515 | tv.tv_sec = (time_t)delay; |
|
|
516 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
517 | |
|
|
518 | select (0, 0, 0, 0, &tv); |
|
|
519 | #endif |
|
|
520 | } |
|
|
521 | } |
|
|
522 | |
|
|
523 | /*****************************************************************************/ |
|
|
524 | |
|
|
525 | int inline_size |
|
|
526 | array_nextsize (int elem, int cur, int cnt) |
|
|
527 | { |
|
|
528 | int ncur = cur + 1; |
|
|
529 | |
|
|
530 | do |
|
|
531 | ncur <<= 1; |
|
|
532 | while (cnt > ncur); |
|
|
533 | |
|
|
534 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
|
|
535 | if (elem * ncur > 4096) |
|
|
536 | { |
|
|
537 | ncur *= elem; |
|
|
538 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
|
|
539 | ncur = ncur - sizeof (void *) * 4; |
|
|
540 | ncur /= elem; |
|
|
541 | } |
|
|
542 | |
|
|
543 | return ncur; |
|
|
544 | } |
|
|
545 | |
|
|
546 | static noinline void * |
|
|
547 | array_realloc (int elem, void *base, int *cur, int cnt) |
|
|
548 | { |
|
|
549 | *cur = array_nextsize (elem, *cur, cnt); |
|
|
550 | return ev_realloc (base, elem * *cur); |
|
|
551 | } |
274 | |
552 | |
275 | #define array_needsize(type,base,cur,cnt,init) \ |
553 | #define array_needsize(type,base,cur,cnt,init) \ |
276 | if (expect_false ((cnt) > cur)) \ |
554 | if (expect_false ((cnt) > (cur))) \ |
277 | { \ |
555 | { \ |
278 | int newcnt = cur; \ |
556 | int ocur_ = (cur); \ |
279 | do \ |
557 | (base) = (type *)array_realloc \ |
280 | { \ |
558 | (sizeof (type), (base), &(cur), (cnt)); \ |
281 | newcnt = array_roundsize (type, newcnt << 1); \ |
559 | init ((base) + (ocur_), (cur) - ocur_); \ |
282 | } \ |
|
|
283 | while ((cnt) > newcnt); \ |
|
|
284 | \ |
|
|
285 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
|
|
286 | init (base + cur, newcnt - cur); \ |
|
|
287 | cur = newcnt; \ |
|
|
288 | } |
560 | } |
289 | |
561 | |
|
|
562 | #if 0 |
290 | #define array_slim(type,stem) \ |
563 | #define array_slim(type,stem) \ |
291 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
564 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
292 | { \ |
565 | { \ |
293 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
566 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
294 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
567 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
295 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
568 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
296 | } |
569 | } |
297 | |
570 | #endif |
298 | /* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */ |
|
|
299 | /* bringing us everlasting joy in form of stupid extra macros that are not required in C */ |
|
|
300 | #define array_free_microshit(stem) \ |
|
|
301 | ev_free (stem ## s); stem ## cnt = stem ## max = 0; |
|
|
302 | |
571 | |
303 | #define array_free(stem, idx) \ |
572 | #define array_free(stem, idx) \ |
304 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
573 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
305 | |
574 | |
306 | /*****************************************************************************/ |
575 | /*****************************************************************************/ |
307 | |
576 | |
308 | static void |
577 | void noinline |
|
|
578 | ev_feed_event (EV_P_ void *w, int revents) |
|
|
579 | { |
|
|
580 | W w_ = (W)w; |
|
|
581 | int pri = ABSPRI (w_); |
|
|
582 | |
|
|
583 | if (expect_false (w_->pending)) |
|
|
584 | pendings [pri][w_->pending - 1].events |= revents; |
|
|
585 | else |
|
|
586 | { |
|
|
587 | w_->pending = ++pendingcnt [pri]; |
|
|
588 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
|
|
589 | pendings [pri][w_->pending - 1].w = w_; |
|
|
590 | pendings [pri][w_->pending - 1].events = revents; |
|
|
591 | } |
|
|
592 | } |
|
|
593 | |
|
|
594 | void inline_speed |
|
|
595 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
596 | { |
|
|
597 | int i; |
|
|
598 | |
|
|
599 | for (i = 0; i < eventcnt; ++i) |
|
|
600 | ev_feed_event (EV_A_ events [i], type); |
|
|
601 | } |
|
|
602 | |
|
|
603 | /*****************************************************************************/ |
|
|
604 | |
|
|
605 | void inline_size |
309 | anfds_init (ANFD *base, int count) |
606 | anfds_init (ANFD *base, int count) |
310 | { |
607 | { |
311 | while (count--) |
608 | while (count--) |
312 | { |
609 | { |
313 | base->head = 0; |
610 | base->head = 0; |
… | |
… | |
316 | |
613 | |
317 | ++base; |
614 | ++base; |
318 | } |
615 | } |
319 | } |
616 | } |
320 | |
617 | |
321 | static void |
618 | void inline_speed |
322 | event (EV_P_ W w, int events) |
|
|
323 | { |
|
|
324 | if (w->pending) |
|
|
325 | { |
|
|
326 | pendings [ABSPRI (w)][w->pending - 1].events |= events; |
|
|
327 | return; |
|
|
328 | } |
|
|
329 | |
|
|
330 | w->pending = ++pendingcnt [ABSPRI (w)]; |
|
|
331 | array_needsize (ANPENDING, pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], (void)); |
|
|
332 | pendings [ABSPRI (w)][w->pending - 1].w = w; |
|
|
333 | pendings [ABSPRI (w)][w->pending - 1].events = events; |
|
|
334 | } |
|
|
335 | |
|
|
336 | static void |
|
|
337 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
338 | { |
|
|
339 | int i; |
|
|
340 | |
|
|
341 | for (i = 0; i < eventcnt; ++i) |
|
|
342 | event (EV_A_ events [i], type); |
|
|
343 | } |
|
|
344 | |
|
|
345 | static void |
|
|
346 | fd_event (EV_P_ int fd, int events) |
619 | fd_event (EV_P_ int fd, int revents) |
347 | { |
620 | { |
348 | ANFD *anfd = anfds + fd; |
621 | ANFD *anfd = anfds + fd; |
349 | struct ev_io *w; |
622 | ev_io *w; |
350 | |
623 | |
351 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
624 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
352 | { |
625 | { |
353 | int ev = w->events & events; |
626 | int ev = w->events & revents; |
354 | |
627 | |
355 | if (ev) |
628 | if (ev) |
356 | event (EV_A_ (W)w, ev); |
629 | ev_feed_event (EV_A_ (W)w, ev); |
357 | } |
630 | } |
358 | } |
631 | } |
359 | |
632 | |
360 | /*****************************************************************************/ |
633 | void |
|
|
634 | ev_feed_fd_event (EV_P_ int fd, int revents) |
|
|
635 | { |
|
|
636 | if (fd >= 0 && fd < anfdmax) |
|
|
637 | fd_event (EV_A_ fd, revents); |
|
|
638 | } |
361 | |
639 | |
362 | static void |
640 | void inline_size |
363 | fd_reify (EV_P) |
641 | fd_reify (EV_P) |
364 | { |
642 | { |
365 | int i; |
643 | int i; |
366 | |
644 | |
367 | for (i = 0; i < fdchangecnt; ++i) |
645 | for (i = 0; i < fdchangecnt; ++i) |
368 | { |
646 | { |
369 | int fd = fdchanges [i]; |
647 | int fd = fdchanges [i]; |
370 | ANFD *anfd = anfds + fd; |
648 | ANFD *anfd = anfds + fd; |
371 | struct ev_io *w; |
649 | ev_io *w; |
372 | |
650 | |
373 | int events = 0; |
651 | unsigned char events = 0; |
374 | |
652 | |
375 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
653 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
376 | events |= w->events; |
654 | events |= (unsigned char)w->events; |
377 | |
655 | |
|
|
656 | #if EV_SELECT_IS_WINSOCKET |
|
|
657 | if (events) |
|
|
658 | { |
|
|
659 | unsigned long argp; |
|
|
660 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
661 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
662 | #else |
|
|
663 | anfd->handle = _get_osfhandle (fd); |
|
|
664 | #endif |
|
|
665 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
|
|
666 | } |
|
|
667 | #endif |
|
|
668 | |
|
|
669 | { |
|
|
670 | unsigned char o_events = anfd->events; |
|
|
671 | unsigned char o_reify = anfd->reify; |
|
|
672 | |
378 | anfd->reify = 0; |
673 | anfd->reify = 0; |
379 | |
|
|
380 | method_modify (EV_A_ fd, anfd->events, events); |
|
|
381 | anfd->events = events; |
674 | anfd->events = events; |
|
|
675 | |
|
|
676 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
677 | backend_modify (EV_A_ fd, o_events, events); |
|
|
678 | } |
382 | } |
679 | } |
383 | |
680 | |
384 | fdchangecnt = 0; |
681 | fdchangecnt = 0; |
385 | } |
682 | } |
386 | |
683 | |
387 | static void |
684 | void inline_size |
388 | fd_change (EV_P_ int fd) |
685 | fd_change (EV_P_ int fd, int flags) |
389 | { |
686 | { |
390 | if (anfds [fd].reify) |
687 | unsigned char reify = anfds [fd].reify; |
391 | return; |
|
|
392 | |
|
|
393 | anfds [fd].reify = 1; |
688 | anfds [fd].reify |= flags; |
394 | |
689 | |
|
|
690 | if (expect_true (!reify)) |
|
|
691 | { |
395 | ++fdchangecnt; |
692 | ++fdchangecnt; |
396 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void)); |
693 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
397 | fdchanges [fdchangecnt - 1] = fd; |
694 | fdchanges [fdchangecnt - 1] = fd; |
|
|
695 | } |
398 | } |
696 | } |
399 | |
697 | |
400 | static void |
698 | void inline_speed |
401 | fd_kill (EV_P_ int fd) |
699 | fd_kill (EV_P_ int fd) |
402 | { |
700 | { |
403 | struct ev_io *w; |
701 | ev_io *w; |
404 | |
702 | |
405 | while ((w = (struct ev_io *)anfds [fd].head)) |
703 | while ((w = (ev_io *)anfds [fd].head)) |
406 | { |
704 | { |
407 | ev_io_stop (EV_A_ w); |
705 | ev_io_stop (EV_A_ w); |
408 | event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
706 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
409 | } |
707 | } |
410 | } |
708 | } |
411 | |
709 | |
412 | static int |
710 | int inline_size |
413 | fd_valid (int fd) |
711 | fd_valid (int fd) |
414 | { |
712 | { |
415 | #ifdef WIN32 |
713 | #ifdef _WIN32 |
416 | return !!win32_get_osfhandle (fd); |
714 | return _get_osfhandle (fd) != -1; |
417 | #else |
715 | #else |
418 | return fcntl (fd, F_GETFD) != -1; |
716 | return fcntl (fd, F_GETFD) != -1; |
419 | #endif |
717 | #endif |
420 | } |
718 | } |
421 | |
719 | |
422 | /* called on EBADF to verify fds */ |
720 | /* called on EBADF to verify fds */ |
423 | static void |
721 | static void noinline |
424 | fd_ebadf (EV_P) |
722 | fd_ebadf (EV_P) |
425 | { |
723 | { |
426 | int fd; |
724 | int fd; |
427 | |
725 | |
428 | for (fd = 0; fd < anfdmax; ++fd) |
726 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
430 | if (!fd_valid (fd) == -1 && errno == EBADF) |
728 | if (!fd_valid (fd) == -1 && errno == EBADF) |
431 | fd_kill (EV_A_ fd); |
729 | fd_kill (EV_A_ fd); |
432 | } |
730 | } |
433 | |
731 | |
434 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
732 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
435 | static void |
733 | static void noinline |
436 | fd_enomem (EV_P) |
734 | fd_enomem (EV_P) |
437 | { |
735 | { |
438 | int fd; |
736 | int fd; |
439 | |
737 | |
440 | for (fd = anfdmax; fd--; ) |
738 | for (fd = anfdmax; fd--; ) |
… | |
… | |
443 | fd_kill (EV_A_ fd); |
741 | fd_kill (EV_A_ fd); |
444 | return; |
742 | return; |
445 | } |
743 | } |
446 | } |
744 | } |
447 | |
745 | |
448 | /* usually called after fork if method needs to re-arm all fds from scratch */ |
746 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
449 | static void |
747 | static void noinline |
450 | fd_rearm_all (EV_P) |
748 | fd_rearm_all (EV_P) |
451 | { |
749 | { |
452 | int fd; |
750 | int fd; |
453 | |
751 | |
454 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
455 | for (fd = 0; fd < anfdmax; ++fd) |
752 | for (fd = 0; fd < anfdmax; ++fd) |
456 | if (anfds [fd].events) |
753 | if (anfds [fd].events) |
457 | { |
754 | { |
458 | anfds [fd].events = 0; |
755 | anfds [fd].events = 0; |
459 | fd_change (EV_A_ fd); |
756 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
460 | } |
757 | } |
461 | } |
758 | } |
462 | |
759 | |
463 | /*****************************************************************************/ |
760 | /*****************************************************************************/ |
464 | |
761 | |
465 | static void |
762 | /* towards the root */ |
|
|
763 | void inline_speed |
466 | upheap (WT *heap, int k) |
764 | upheap (WT *heap, int k) |
467 | { |
765 | { |
468 | WT w = heap [k]; |
766 | WT w = heap [k]; |
469 | |
767 | |
470 | while (k && heap [k >> 1]->at > w->at) |
768 | for (;;) |
471 | { |
769 | { |
|
|
770 | int p = k >> 1; |
|
|
771 | |
|
|
772 | /* maybe we could use a dummy element at heap [0]? */ |
|
|
773 | if (!p || heap [p]->at <= w->at) |
|
|
774 | break; |
|
|
775 | |
472 | heap [k] = heap [k >> 1]; |
776 | heap [k] = heap [p]; |
473 | ((W)heap [k])->active = k + 1; |
777 | ((W)heap [k])->active = k; |
474 | k >>= 1; |
778 | k = p; |
475 | } |
779 | } |
476 | |
780 | |
477 | heap [k] = w; |
781 | heap [k] = w; |
478 | ((W)heap [k])->active = k + 1; |
782 | ((W)heap [k])->active = k; |
479 | |
|
|
480 | } |
783 | } |
481 | |
784 | |
482 | static void |
785 | /* away from the root */ |
|
|
786 | void inline_speed |
483 | downheap (WT *heap, int N, int k) |
787 | downheap (WT *heap, int N, int k) |
484 | { |
788 | { |
485 | WT w = heap [k]; |
789 | WT w = heap [k]; |
486 | |
790 | |
487 | while (k < (N >> 1)) |
791 | for (;;) |
488 | { |
792 | { |
489 | int j = k << 1; |
793 | int c = k << 1; |
490 | |
794 | |
491 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
795 | if (c > N) |
492 | ++j; |
|
|
493 | |
|
|
494 | if (w->at <= heap [j]->at) |
|
|
495 | break; |
796 | break; |
496 | |
797 | |
|
|
798 | c += c < N && heap [c]->at > heap [c + 1]->at |
|
|
799 | ? 1 : 0; |
|
|
800 | |
|
|
801 | if (w->at <= heap [c]->at) |
|
|
802 | break; |
|
|
803 | |
497 | heap [k] = heap [j]; |
804 | heap [k] = heap [c]; |
498 | ((W)heap [k])->active = k + 1; |
805 | ((W)heap [k])->active = k; |
|
|
806 | |
499 | k = j; |
807 | k = c; |
500 | } |
808 | } |
501 | |
809 | |
502 | heap [k] = w; |
810 | heap [k] = w; |
503 | ((W)heap [k])->active = k + 1; |
811 | ((W)heap [k])->active = k; |
|
|
812 | } |
|
|
813 | |
|
|
814 | void inline_size |
|
|
815 | adjustheap (WT *heap, int N, int k) |
|
|
816 | { |
|
|
817 | upheap (heap, k); |
|
|
818 | downheap (heap, N, k); |
504 | } |
819 | } |
505 | |
820 | |
506 | /*****************************************************************************/ |
821 | /*****************************************************************************/ |
507 | |
822 | |
508 | typedef struct |
823 | typedef struct |
509 | { |
824 | { |
510 | WL head; |
825 | WL head; |
511 | sig_atomic_t volatile gotsig; |
826 | EV_ATOMIC_T gotsig; |
512 | } ANSIG; |
827 | } ANSIG; |
513 | |
828 | |
514 | static ANSIG *signals; |
829 | static ANSIG *signals; |
515 | static int signalmax; |
830 | static int signalmax; |
516 | |
831 | |
517 | static int sigpipe [2]; |
832 | static EV_ATOMIC_T gotsig; |
518 | static sig_atomic_t volatile gotsig; |
|
|
519 | static struct ev_io sigev; |
|
|
520 | |
833 | |
521 | static void |
834 | void inline_size |
522 | signals_init (ANSIG *base, int count) |
835 | signals_init (ANSIG *base, int count) |
523 | { |
836 | { |
524 | while (count--) |
837 | while (count--) |
525 | { |
838 | { |
526 | base->head = 0; |
839 | base->head = 0; |
… | |
… | |
528 | |
841 | |
529 | ++base; |
842 | ++base; |
530 | } |
843 | } |
531 | } |
844 | } |
532 | |
845 | |
|
|
846 | /*****************************************************************************/ |
|
|
847 | |
|
|
848 | void inline_speed |
|
|
849 | fd_intern (int fd) |
|
|
850 | { |
|
|
851 | #ifdef _WIN32 |
|
|
852 | int arg = 1; |
|
|
853 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
854 | #else |
|
|
855 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
856 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
857 | #endif |
|
|
858 | } |
|
|
859 | |
|
|
860 | static void noinline |
|
|
861 | evpipe_init (EV_P) |
|
|
862 | { |
|
|
863 | if (!ev_is_active (&pipeev)) |
|
|
864 | { |
|
|
865 | #if EV_USE_EVENTFD |
|
|
866 | if ((evfd = eventfd (0, 0)) >= 0) |
|
|
867 | { |
|
|
868 | evpipe [0] = -1; |
|
|
869 | fd_intern (evfd); |
|
|
870 | ev_io_set (&pipeev, evfd, EV_READ); |
|
|
871 | } |
|
|
872 | else |
|
|
873 | #endif |
|
|
874 | { |
|
|
875 | while (pipe (evpipe)) |
|
|
876 | syserr ("(libev) error creating signal/async pipe"); |
|
|
877 | |
|
|
878 | fd_intern (evpipe [0]); |
|
|
879 | fd_intern (evpipe [1]); |
|
|
880 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
|
|
881 | } |
|
|
882 | |
|
|
883 | ev_io_start (EV_A_ &pipeev); |
|
|
884 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
885 | } |
|
|
886 | } |
|
|
887 | |
|
|
888 | void inline_size |
|
|
889 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
890 | { |
|
|
891 | if (!*flag) |
|
|
892 | { |
|
|
893 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
894 | |
|
|
895 | *flag = 1; |
|
|
896 | |
|
|
897 | #if EV_USE_EVENTFD |
|
|
898 | if (evfd >= 0) |
|
|
899 | { |
|
|
900 | uint64_t counter = 1; |
|
|
901 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
902 | } |
|
|
903 | else |
|
|
904 | #endif |
|
|
905 | write (evpipe [1], &old_errno, 1); |
|
|
906 | |
|
|
907 | errno = old_errno; |
|
|
908 | } |
|
|
909 | } |
|
|
910 | |
533 | static void |
911 | static void |
|
|
912 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
913 | { |
|
|
914 | #if EV_USE_EVENTFD |
|
|
915 | if (evfd >= 0) |
|
|
916 | { |
|
|
917 | uint64_t counter = 1; |
|
|
918 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
919 | } |
|
|
920 | else |
|
|
921 | #endif |
|
|
922 | { |
|
|
923 | char dummy; |
|
|
924 | read (evpipe [0], &dummy, 1); |
|
|
925 | } |
|
|
926 | |
|
|
927 | if (gotsig && ev_is_default_loop (EV_A)) |
|
|
928 | { |
|
|
929 | int signum; |
|
|
930 | gotsig = 0; |
|
|
931 | |
|
|
932 | for (signum = signalmax; signum--; ) |
|
|
933 | if (signals [signum].gotsig) |
|
|
934 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
935 | } |
|
|
936 | |
|
|
937 | #if EV_ASYNC_ENABLE |
|
|
938 | if (gotasync) |
|
|
939 | { |
|
|
940 | int i; |
|
|
941 | gotasync = 0; |
|
|
942 | |
|
|
943 | for (i = asynccnt; i--; ) |
|
|
944 | if (asyncs [i]->sent) |
|
|
945 | { |
|
|
946 | asyncs [i]->sent = 0; |
|
|
947 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
948 | } |
|
|
949 | } |
|
|
950 | #endif |
|
|
951 | } |
|
|
952 | |
|
|
953 | /*****************************************************************************/ |
|
|
954 | |
|
|
955 | static void |
534 | sighandler (int signum) |
956 | ev_sighandler (int signum) |
535 | { |
957 | { |
|
|
958 | #if EV_MULTIPLICITY |
|
|
959 | struct ev_loop *loop = &default_loop_struct; |
|
|
960 | #endif |
|
|
961 | |
536 | #if WIN32 |
962 | #if _WIN32 |
537 | signal (signum, sighandler); |
963 | signal (signum, ev_sighandler); |
538 | #endif |
964 | #endif |
539 | |
965 | |
540 | signals [signum - 1].gotsig = 1; |
966 | signals [signum - 1].gotsig = 1; |
541 | |
967 | evpipe_write (EV_A_ &gotsig); |
542 | if (!gotsig) |
|
|
543 | { |
|
|
544 | int old_errno = errno; |
|
|
545 | gotsig = 1; |
|
|
546 | #ifdef WIN32 |
|
|
547 | send (sigpipe [1], &signum, 1, MSG_DONTWAIT); |
|
|
548 | #else |
|
|
549 | write (sigpipe [1], &signum, 1); |
|
|
550 | #endif |
|
|
551 | errno = old_errno; |
|
|
552 | } |
|
|
553 | } |
968 | } |
554 | |
969 | |
555 | static void |
970 | void noinline |
556 | sigcb (EV_P_ struct ev_io *iow, int revents) |
971 | ev_feed_signal_event (EV_P_ int signum) |
557 | { |
972 | { |
558 | WL w; |
973 | WL w; |
|
|
974 | |
|
|
975 | #if EV_MULTIPLICITY |
|
|
976 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
977 | #endif |
|
|
978 | |
559 | int signum; |
979 | --signum; |
560 | |
980 | |
561 | #ifdef WIN32 |
981 | if (signum < 0 || signum >= signalmax) |
562 | recv (sigpipe [0], &revents, 1, MSG_DONTWAIT); |
982 | return; |
563 | #else |
|
|
564 | read (sigpipe [0], &revents, 1); |
|
|
565 | #endif |
|
|
566 | gotsig = 0; |
|
|
567 | |
983 | |
568 | for (signum = signalmax; signum--; ) |
|
|
569 | if (signals [signum].gotsig) |
|
|
570 | { |
|
|
571 | signals [signum].gotsig = 0; |
984 | signals [signum].gotsig = 0; |
572 | |
985 | |
573 | for (w = signals [signum].head; w; w = w->next) |
986 | for (w = signals [signum].head; w; w = w->next) |
574 | event (EV_A_ (W)w, EV_SIGNAL); |
987 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
575 | } |
|
|
576 | } |
|
|
577 | |
|
|
578 | static void |
|
|
579 | siginit (EV_P) |
|
|
580 | { |
|
|
581 | #ifndef WIN32 |
|
|
582 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
|
|
583 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
|
|
584 | |
|
|
585 | /* rather than sort out wether we really need nb, set it */ |
|
|
586 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
|
|
587 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
|
|
588 | #endif |
|
|
589 | |
|
|
590 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
591 | ev_io_start (EV_A_ &sigev); |
|
|
592 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
|
|
593 | } |
988 | } |
594 | |
989 | |
595 | /*****************************************************************************/ |
990 | /*****************************************************************************/ |
596 | |
991 | |
597 | static struct ev_child *childs [PID_HASHSIZE]; |
992 | static WL childs [EV_PID_HASHSIZE]; |
598 | |
993 | |
599 | #ifndef WIN32 |
994 | #ifndef _WIN32 |
600 | |
995 | |
601 | static struct ev_signal childev; |
996 | static ev_signal childev; |
|
|
997 | |
|
|
998 | #ifndef WIFCONTINUED |
|
|
999 | # define WIFCONTINUED(status) 0 |
|
|
1000 | #endif |
|
|
1001 | |
|
|
1002 | void inline_speed |
|
|
1003 | child_reap (EV_P_ int chain, int pid, int status) |
|
|
1004 | { |
|
|
1005 | ev_child *w; |
|
|
1006 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
|
|
1007 | |
|
|
1008 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1009 | { |
|
|
1010 | if ((w->pid == pid || !w->pid) |
|
|
1011 | && (!traced || (w->flags & 1))) |
|
|
1012 | { |
|
|
1013 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
|
|
1014 | w->rpid = pid; |
|
|
1015 | w->rstatus = status; |
|
|
1016 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
1017 | } |
|
|
1018 | } |
|
|
1019 | } |
602 | |
1020 | |
603 | #ifndef WCONTINUED |
1021 | #ifndef WCONTINUED |
604 | # define WCONTINUED 0 |
1022 | # define WCONTINUED 0 |
605 | #endif |
1023 | #endif |
606 | |
1024 | |
607 | static void |
1025 | static void |
608 | child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) |
|
|
609 | { |
|
|
610 | struct ev_child *w; |
|
|
611 | |
|
|
612 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
|
|
613 | if (w->pid == pid || !w->pid) |
|
|
614 | { |
|
|
615 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
|
|
616 | w->rpid = pid; |
|
|
617 | w->rstatus = status; |
|
|
618 | event (EV_A_ (W)w, EV_CHILD); |
|
|
619 | } |
|
|
620 | } |
|
|
621 | |
|
|
622 | static void |
|
|
623 | childcb (EV_P_ struct ev_signal *sw, int revents) |
1026 | childcb (EV_P_ ev_signal *sw, int revents) |
624 | { |
1027 | { |
625 | int pid, status; |
1028 | int pid, status; |
626 | |
1029 | |
|
|
1030 | /* some systems define WCONTINUED but then fail to support it (linux 2.4) */ |
627 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
1031 | if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
628 | { |
1032 | if (!WCONTINUED |
|
|
1033 | || errno != EINVAL |
|
|
1034 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
|
|
1035 | return; |
|
|
1036 | |
629 | /* make sure we are called again until all childs have been reaped */ |
1037 | /* make sure we are called again until all children have been reaped */ |
|
|
1038 | /* we need to do it this way so that the callback gets called before we continue */ |
630 | event (EV_A_ (W)sw, EV_SIGNAL); |
1039 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
631 | |
1040 | |
632 | child_reap (EV_A_ sw, pid, pid, status); |
1041 | child_reap (EV_A_ pid, pid, status); |
|
|
1042 | if (EV_PID_HASHSIZE > 1) |
633 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
1043 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
634 | } |
|
|
635 | } |
1044 | } |
636 | |
1045 | |
637 | #endif |
1046 | #endif |
638 | |
1047 | |
639 | /*****************************************************************************/ |
1048 | /*****************************************************************************/ |
640 | |
1049 | |
|
|
1050 | #if EV_USE_PORT |
|
|
1051 | # include "ev_port.c" |
|
|
1052 | #endif |
641 | #if EV_USE_KQUEUE |
1053 | #if EV_USE_KQUEUE |
642 | # include "ev_kqueue.c" |
1054 | # include "ev_kqueue.c" |
643 | #endif |
1055 | #endif |
644 | #if EV_USE_EPOLL |
1056 | #if EV_USE_EPOLL |
645 | # include "ev_epoll.c" |
1057 | # include "ev_epoll.c" |
… | |
… | |
662 | { |
1074 | { |
663 | return EV_VERSION_MINOR; |
1075 | return EV_VERSION_MINOR; |
664 | } |
1076 | } |
665 | |
1077 | |
666 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1078 | /* return true if we are running with elevated privileges and should ignore env variables */ |
667 | static int |
1079 | int inline_size |
668 | enable_secure (void) |
1080 | enable_secure (void) |
669 | { |
1081 | { |
670 | #ifdef WIN32 |
1082 | #ifdef _WIN32 |
671 | return 0; |
1083 | return 0; |
672 | #else |
1084 | #else |
673 | return getuid () != geteuid () |
1085 | return getuid () != geteuid () |
674 | || getgid () != getegid (); |
1086 | || getgid () != getegid (); |
675 | #endif |
1087 | #endif |
676 | } |
1088 | } |
677 | |
1089 | |
678 | int |
1090 | unsigned int |
679 | ev_method (EV_P) |
1091 | ev_supported_backends (void) |
680 | { |
1092 | { |
681 | return method; |
1093 | unsigned int flags = 0; |
682 | } |
|
|
683 | |
1094 | |
684 | static void |
1095 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
685 | loop_init (EV_P_ int methods) |
1096 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
|
|
1097 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
1098 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
1099 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
|
|
1100 | |
|
|
1101 | return flags; |
|
|
1102 | } |
|
|
1103 | |
|
|
1104 | unsigned int |
|
|
1105 | ev_recommended_backends (void) |
686 | { |
1106 | { |
687 | if (!method) |
1107 | unsigned int flags = ev_supported_backends (); |
|
|
1108 | |
|
|
1109 | #ifndef __NetBSD__ |
|
|
1110 | /* kqueue is borked on everything but netbsd apparently */ |
|
|
1111 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
|
|
1112 | flags &= ~EVBACKEND_KQUEUE; |
|
|
1113 | #endif |
|
|
1114 | #ifdef __APPLE__ |
|
|
1115 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
|
|
1116 | flags &= ~EVBACKEND_POLL; |
|
|
1117 | #endif |
|
|
1118 | |
|
|
1119 | return flags; |
|
|
1120 | } |
|
|
1121 | |
|
|
1122 | unsigned int |
|
|
1123 | ev_embeddable_backends (void) |
|
|
1124 | { |
|
|
1125 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
|
|
1126 | |
|
|
1127 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1128 | /* please fix it and tell me how to detect the fix */ |
|
|
1129 | flags &= ~EVBACKEND_EPOLL; |
|
|
1130 | |
|
|
1131 | return flags; |
|
|
1132 | } |
|
|
1133 | |
|
|
1134 | unsigned int |
|
|
1135 | ev_backend (EV_P) |
|
|
1136 | { |
|
|
1137 | return backend; |
|
|
1138 | } |
|
|
1139 | |
|
|
1140 | unsigned int |
|
|
1141 | ev_loop_count (EV_P) |
|
|
1142 | { |
|
|
1143 | return loop_count; |
|
|
1144 | } |
|
|
1145 | |
|
|
1146 | void |
|
|
1147 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1148 | { |
|
|
1149 | io_blocktime = interval; |
|
|
1150 | } |
|
|
1151 | |
|
|
1152 | void |
|
|
1153 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1154 | { |
|
|
1155 | timeout_blocktime = interval; |
|
|
1156 | } |
|
|
1157 | |
|
|
1158 | static void noinline |
|
|
1159 | loop_init (EV_P_ unsigned int flags) |
|
|
1160 | { |
|
|
1161 | if (!backend) |
688 | { |
1162 | { |
689 | #if EV_USE_MONOTONIC |
1163 | #if EV_USE_MONOTONIC |
690 | { |
1164 | { |
691 | struct timespec ts; |
1165 | struct timespec ts; |
692 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1166 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
693 | have_monotonic = 1; |
1167 | have_monotonic = 1; |
694 | } |
1168 | } |
695 | #endif |
1169 | #endif |
696 | |
1170 | |
697 | rt_now = ev_time (); |
1171 | ev_rt_now = ev_time (); |
698 | mn_now = get_clock (); |
1172 | mn_now = get_clock (); |
699 | now_floor = mn_now; |
1173 | now_floor = mn_now; |
700 | rtmn_diff = rt_now - mn_now; |
1174 | rtmn_diff = ev_rt_now - mn_now; |
701 | |
1175 | |
702 | if (methods == EVMETHOD_AUTO) |
1176 | io_blocktime = 0.; |
703 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
1177 | timeout_blocktime = 0.; |
|
|
1178 | backend = 0; |
|
|
1179 | backend_fd = -1; |
|
|
1180 | gotasync = 0; |
|
|
1181 | #if EV_USE_INOTIFY |
|
|
1182 | fs_fd = -2; |
|
|
1183 | #endif |
|
|
1184 | |
|
|
1185 | /* pid check not overridable via env */ |
|
|
1186 | #ifndef _WIN32 |
|
|
1187 | if (flags & EVFLAG_FORKCHECK) |
|
|
1188 | curpid = getpid (); |
|
|
1189 | #endif |
|
|
1190 | |
|
|
1191 | if (!(flags & EVFLAG_NOENV) |
|
|
1192 | && !enable_secure () |
|
|
1193 | && getenv ("LIBEV_FLAGS")) |
704 | methods = atoi (getenv ("LIBEV_METHODS")); |
1194 | flags = atoi (getenv ("LIBEV_FLAGS")); |
705 | else |
|
|
706 | methods = EVMETHOD_ANY; |
|
|
707 | |
1195 | |
708 | method = 0; |
1196 | if (!(flags & 0x0000ffffU)) |
709 | #if EV_USE_WIN32 |
1197 | flags |= ev_recommended_backends (); |
710 | if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods); |
1198 | |
|
|
1199 | #if EV_USE_PORT |
|
|
1200 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
711 | #endif |
1201 | #endif |
712 | #if EV_USE_KQUEUE |
1202 | #if EV_USE_KQUEUE |
713 | if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); |
1203 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
714 | #endif |
1204 | #endif |
715 | #if EV_USE_EPOLL |
1205 | #if EV_USE_EPOLL |
716 | if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); |
1206 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
717 | #endif |
1207 | #endif |
718 | #if EV_USE_POLL |
1208 | #if EV_USE_POLL |
719 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
1209 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
720 | #endif |
1210 | #endif |
721 | #if EV_USE_SELECT |
1211 | #if EV_USE_SELECT |
722 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
1212 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
723 | #endif |
1213 | #endif |
724 | |
1214 | |
725 | ev_watcher_init (&sigev, sigcb); |
1215 | ev_init (&pipeev, pipecb); |
726 | ev_set_priority (&sigev, EV_MAXPRI); |
1216 | ev_set_priority (&pipeev, EV_MAXPRI); |
727 | } |
1217 | } |
728 | } |
1218 | } |
729 | |
1219 | |
730 | void |
1220 | static void noinline |
731 | loop_destroy (EV_P) |
1221 | loop_destroy (EV_P) |
732 | { |
1222 | { |
733 | int i; |
1223 | int i; |
734 | |
1224 | |
|
|
1225 | if (ev_is_active (&pipeev)) |
|
|
1226 | { |
|
|
1227 | ev_ref (EV_A); /* signal watcher */ |
|
|
1228 | ev_io_stop (EV_A_ &pipeev); |
|
|
1229 | |
|
|
1230 | #if EV_USE_EVENTFD |
|
|
1231 | if (evfd >= 0) |
|
|
1232 | close (evfd); |
|
|
1233 | #endif |
|
|
1234 | |
|
|
1235 | if (evpipe [0] >= 0) |
|
|
1236 | { |
|
|
1237 | close (evpipe [0]); |
|
|
1238 | close (evpipe [1]); |
|
|
1239 | } |
|
|
1240 | } |
|
|
1241 | |
735 | #if EV_USE_WIN32 |
1242 | #if EV_USE_INOTIFY |
736 | if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A); |
1243 | if (fs_fd >= 0) |
|
|
1244 | close (fs_fd); |
|
|
1245 | #endif |
|
|
1246 | |
|
|
1247 | if (backend_fd >= 0) |
|
|
1248 | close (backend_fd); |
|
|
1249 | |
|
|
1250 | #if EV_USE_PORT |
|
|
1251 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
737 | #endif |
1252 | #endif |
738 | #if EV_USE_KQUEUE |
1253 | #if EV_USE_KQUEUE |
739 | if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); |
1254 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
740 | #endif |
1255 | #endif |
741 | #if EV_USE_EPOLL |
1256 | #if EV_USE_EPOLL |
742 | if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); |
1257 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
743 | #endif |
1258 | #endif |
744 | #if EV_USE_POLL |
1259 | #if EV_USE_POLL |
745 | if (method == EVMETHOD_POLL ) poll_destroy (EV_A); |
1260 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
746 | #endif |
1261 | #endif |
747 | #if EV_USE_SELECT |
1262 | #if EV_USE_SELECT |
748 | if (method == EVMETHOD_SELECT) select_destroy (EV_A); |
1263 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
749 | #endif |
1264 | #endif |
750 | |
1265 | |
751 | for (i = NUMPRI; i--; ) |
1266 | for (i = NUMPRI; i--; ) |
|
|
1267 | { |
752 | array_free (pending, [i]); |
1268 | array_free (pending, [i]); |
|
|
1269 | #if EV_IDLE_ENABLE |
|
|
1270 | array_free (idle, [i]); |
|
|
1271 | #endif |
|
|
1272 | } |
|
|
1273 | |
|
|
1274 | ev_free (anfds); anfdmax = 0; |
753 | |
1275 | |
754 | /* have to use the microsoft-never-gets-it-right macro */ |
1276 | /* have to use the microsoft-never-gets-it-right macro */ |
755 | array_free_microshit (fdchange); |
1277 | array_free (fdchange, EMPTY); |
756 | array_free_microshit (timer); |
1278 | array_free (timer, EMPTY); |
757 | array_free_microshit (periodic); |
1279 | #if EV_PERIODIC_ENABLE |
758 | array_free_microshit (idle); |
1280 | array_free (periodic, EMPTY); |
759 | array_free_microshit (prepare); |
1281 | #endif |
760 | array_free_microshit (check); |
1282 | #if EV_FORK_ENABLE |
|
|
1283 | array_free (fork, EMPTY); |
|
|
1284 | #endif |
|
|
1285 | array_free (prepare, EMPTY); |
|
|
1286 | array_free (check, EMPTY); |
|
|
1287 | #if EV_ASYNC_ENABLE |
|
|
1288 | array_free (async, EMPTY); |
|
|
1289 | #endif |
761 | |
1290 | |
762 | method = 0; |
1291 | backend = 0; |
763 | } |
1292 | } |
764 | |
1293 | |
765 | static void |
1294 | #if EV_USE_INOTIFY |
|
|
1295 | void inline_size infy_fork (EV_P); |
|
|
1296 | #endif |
|
|
1297 | |
|
|
1298 | void inline_size |
766 | loop_fork (EV_P) |
1299 | loop_fork (EV_P) |
767 | { |
1300 | { |
|
|
1301 | #if EV_USE_PORT |
|
|
1302 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
|
|
1303 | #endif |
|
|
1304 | #if EV_USE_KQUEUE |
|
|
1305 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
|
|
1306 | #endif |
768 | #if EV_USE_EPOLL |
1307 | #if EV_USE_EPOLL |
769 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
1308 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
770 | #endif |
1309 | #endif |
771 | #if EV_USE_KQUEUE |
1310 | #if EV_USE_INOTIFY |
772 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
1311 | infy_fork (EV_A); |
773 | #endif |
1312 | #endif |
774 | |
1313 | |
775 | if (ev_is_active (&sigev)) |
1314 | if (ev_is_active (&pipeev)) |
776 | { |
1315 | { |
777 | /* default loop */ |
1316 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1317 | /* while we modify the fd vars */ |
|
|
1318 | gotsig = 1; |
|
|
1319 | #if EV_ASYNC_ENABLE |
|
|
1320 | gotasync = 1; |
|
|
1321 | #endif |
778 | |
1322 | |
779 | ev_ref (EV_A); |
1323 | ev_ref (EV_A); |
780 | ev_io_stop (EV_A_ &sigev); |
1324 | ev_io_stop (EV_A_ &pipeev); |
|
|
1325 | |
|
|
1326 | #if EV_USE_EVENTFD |
|
|
1327 | if (evfd >= 0) |
|
|
1328 | close (evfd); |
|
|
1329 | #endif |
|
|
1330 | |
|
|
1331 | if (evpipe [0] >= 0) |
|
|
1332 | { |
781 | close (sigpipe [0]); |
1333 | close (evpipe [0]); |
782 | close (sigpipe [1]); |
1334 | close (evpipe [1]); |
|
|
1335 | } |
783 | |
1336 | |
784 | while (pipe (sigpipe)) |
|
|
785 | syserr ("(libev) error creating pipe"); |
|
|
786 | |
|
|
787 | siginit (EV_A); |
1337 | evpipe_init (EV_A); |
|
|
1338 | /* now iterate over everything, in case we missed something */ |
|
|
1339 | pipecb (EV_A_ &pipeev, EV_READ); |
788 | } |
1340 | } |
789 | |
1341 | |
790 | postfork = 0; |
1342 | postfork = 0; |
791 | } |
1343 | } |
792 | |
1344 | |
793 | #if EV_MULTIPLICITY |
1345 | #if EV_MULTIPLICITY |
794 | struct ev_loop * |
1346 | struct ev_loop * |
795 | ev_loop_new (int methods) |
1347 | ev_loop_new (unsigned int flags) |
796 | { |
1348 | { |
797 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1349 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
798 | |
1350 | |
799 | memset (loop, 0, sizeof (struct ev_loop)); |
1351 | memset (loop, 0, sizeof (struct ev_loop)); |
800 | |
1352 | |
801 | loop_init (EV_A_ methods); |
1353 | loop_init (EV_A_ flags); |
802 | |
1354 | |
803 | if (ev_method (EV_A)) |
1355 | if (ev_backend (EV_A)) |
804 | return loop; |
1356 | return loop; |
805 | |
1357 | |
806 | return 0; |
1358 | return 0; |
807 | } |
1359 | } |
808 | |
1360 | |
… | |
… | |
814 | } |
1366 | } |
815 | |
1367 | |
816 | void |
1368 | void |
817 | ev_loop_fork (EV_P) |
1369 | ev_loop_fork (EV_P) |
818 | { |
1370 | { |
819 | postfork = 1; |
1371 | postfork = 1; /* must be in line with ev_default_fork */ |
820 | } |
1372 | } |
821 | |
1373 | |
822 | #endif |
1374 | #endif |
823 | |
1375 | |
824 | #if EV_MULTIPLICITY |
1376 | #if EV_MULTIPLICITY |
825 | struct ev_loop default_loop_struct; |
|
|
826 | static struct ev_loop *default_loop; |
|
|
827 | |
|
|
828 | struct ev_loop * |
1377 | struct ev_loop * |
|
|
1378 | ev_default_loop_init (unsigned int flags) |
829 | #else |
1379 | #else |
830 | static int default_loop; |
|
|
831 | |
|
|
832 | int |
1380 | int |
|
|
1381 | ev_default_loop (unsigned int flags) |
833 | #endif |
1382 | #endif |
834 | ev_default_loop (int methods) |
|
|
835 | { |
1383 | { |
836 | if (sigpipe [0] == sigpipe [1]) |
|
|
837 | if (pipe (sigpipe)) |
|
|
838 | return 0; |
|
|
839 | |
|
|
840 | if (!default_loop) |
1384 | if (!ev_default_loop_ptr) |
841 | { |
1385 | { |
842 | #if EV_MULTIPLICITY |
1386 | #if EV_MULTIPLICITY |
843 | struct ev_loop *loop = default_loop = &default_loop_struct; |
1387 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
844 | #else |
1388 | #else |
845 | default_loop = 1; |
1389 | ev_default_loop_ptr = 1; |
846 | #endif |
1390 | #endif |
847 | |
1391 | |
848 | loop_init (EV_A_ methods); |
1392 | loop_init (EV_A_ flags); |
849 | |
1393 | |
850 | if (ev_method (EV_A)) |
1394 | if (ev_backend (EV_A)) |
851 | { |
1395 | { |
852 | siginit (EV_A); |
|
|
853 | |
|
|
854 | #ifndef WIN32 |
1396 | #ifndef _WIN32 |
855 | ev_signal_init (&childev, childcb, SIGCHLD); |
1397 | ev_signal_init (&childev, childcb, SIGCHLD); |
856 | ev_set_priority (&childev, EV_MAXPRI); |
1398 | ev_set_priority (&childev, EV_MAXPRI); |
857 | ev_signal_start (EV_A_ &childev); |
1399 | ev_signal_start (EV_A_ &childev); |
858 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1400 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
859 | #endif |
1401 | #endif |
860 | } |
1402 | } |
861 | else |
1403 | else |
862 | default_loop = 0; |
1404 | ev_default_loop_ptr = 0; |
863 | } |
1405 | } |
864 | |
1406 | |
865 | return default_loop; |
1407 | return ev_default_loop_ptr; |
866 | } |
1408 | } |
867 | |
1409 | |
868 | void |
1410 | void |
869 | ev_default_destroy (void) |
1411 | ev_default_destroy (void) |
870 | { |
1412 | { |
871 | #if EV_MULTIPLICITY |
1413 | #if EV_MULTIPLICITY |
872 | struct ev_loop *loop = default_loop; |
1414 | struct ev_loop *loop = ev_default_loop_ptr; |
873 | #endif |
1415 | #endif |
874 | |
1416 | |
875 | #ifndef WIN32 |
1417 | #ifndef _WIN32 |
876 | ev_ref (EV_A); /* child watcher */ |
1418 | ev_ref (EV_A); /* child watcher */ |
877 | ev_signal_stop (EV_A_ &childev); |
1419 | ev_signal_stop (EV_A_ &childev); |
878 | #endif |
1420 | #endif |
879 | |
1421 | |
880 | ev_ref (EV_A); /* signal watcher */ |
|
|
881 | ev_io_stop (EV_A_ &sigev); |
|
|
882 | |
|
|
883 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
884 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
885 | |
|
|
886 | loop_destroy (EV_A); |
1422 | loop_destroy (EV_A); |
887 | } |
1423 | } |
888 | |
1424 | |
889 | void |
1425 | void |
890 | ev_default_fork (void) |
1426 | ev_default_fork (void) |
891 | { |
1427 | { |
892 | #if EV_MULTIPLICITY |
1428 | #if EV_MULTIPLICITY |
893 | struct ev_loop *loop = default_loop; |
1429 | struct ev_loop *loop = ev_default_loop_ptr; |
894 | #endif |
1430 | #endif |
895 | |
1431 | |
896 | if (method) |
1432 | if (backend) |
897 | postfork = 1; |
1433 | postfork = 1; /* must be in line with ev_loop_fork */ |
898 | } |
1434 | } |
899 | |
1435 | |
900 | /*****************************************************************************/ |
1436 | /*****************************************************************************/ |
901 | |
1437 | |
902 | static int |
1438 | void |
903 | any_pending (EV_P) |
1439 | ev_invoke (EV_P_ void *w, int revents) |
904 | { |
1440 | { |
905 | int pri; |
1441 | EV_CB_INVOKE ((W)w, revents); |
906 | |
|
|
907 | for (pri = NUMPRI; pri--; ) |
|
|
908 | if (pendingcnt [pri]) |
|
|
909 | return 1; |
|
|
910 | |
|
|
911 | return 0; |
|
|
912 | } |
1442 | } |
913 | |
1443 | |
914 | static void |
1444 | void inline_speed |
915 | call_pending (EV_P) |
1445 | call_pending (EV_P) |
916 | { |
1446 | { |
917 | int pri; |
1447 | int pri; |
918 | |
1448 | |
919 | for (pri = NUMPRI; pri--; ) |
1449 | for (pri = NUMPRI; pri--; ) |
920 | while (pendingcnt [pri]) |
1450 | while (pendingcnt [pri]) |
921 | { |
1451 | { |
922 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1452 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
923 | |
1453 | |
924 | if (p->w) |
1454 | if (expect_true (p->w)) |
925 | { |
1455 | { |
|
|
1456 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1457 | |
926 | p->w->pending = 0; |
1458 | p->w->pending = 0; |
927 | p->w->cb (EV_A_ p->w, p->events); |
1459 | EV_CB_INVOKE (p->w, p->events); |
928 | } |
1460 | } |
929 | } |
1461 | } |
930 | } |
1462 | } |
931 | |
1463 | |
932 | static void |
1464 | void inline_size |
933 | timers_reify (EV_P) |
1465 | timers_reify (EV_P) |
934 | { |
1466 | { |
935 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1467 | while (timercnt && ev_at (timers [1]) <= mn_now) |
936 | { |
1468 | { |
937 | struct ev_timer *w = timers [0]; |
1469 | ev_timer *w = (ev_timer *)timers [1]; |
938 | |
1470 | |
939 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
1471 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
940 | |
1472 | |
941 | /* first reschedule or stop timer */ |
1473 | /* first reschedule or stop timer */ |
942 | if (w->repeat) |
1474 | if (w->repeat) |
943 | { |
1475 | { |
944 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1476 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
945 | ((WT)w)->at = mn_now + w->repeat; |
1477 | |
|
|
1478 | ev_at (w) += w->repeat; |
|
|
1479 | if (ev_at (w) < mn_now) |
|
|
1480 | ev_at (w) = mn_now; |
|
|
1481 | |
946 | downheap ((WT *)timers, timercnt, 0); |
1482 | downheap (timers, timercnt, 1); |
947 | } |
1483 | } |
948 | else |
1484 | else |
949 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1485 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
950 | |
1486 | |
951 | event (EV_A_ (W)w, EV_TIMEOUT); |
1487 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
952 | } |
1488 | } |
953 | } |
1489 | } |
954 | |
1490 | |
955 | static void |
1491 | #if EV_PERIODIC_ENABLE |
|
|
1492 | void inline_size |
956 | periodics_reify (EV_P) |
1493 | periodics_reify (EV_P) |
957 | { |
1494 | { |
958 | while (periodiccnt && ((WT)periodics [0])->at <= rt_now) |
1495 | while (periodiccnt && ev_at (periodics [1]) <= ev_rt_now) |
959 | { |
1496 | { |
960 | struct ev_periodic *w = periodics [0]; |
1497 | ev_periodic *w = (ev_periodic *)periodics [1]; |
961 | |
1498 | |
962 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
1499 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
963 | |
1500 | |
964 | /* first reschedule or stop timer */ |
1501 | /* first reschedule or stop timer */ |
965 | if (w->reschedule_cb) |
1502 | if (w->reschedule_cb) |
966 | { |
1503 | { |
967 | ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, rt_now + 0.0001); |
1504 | ev_at (w) = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
968 | |
|
|
969 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > rt_now)); |
1505 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) > ev_rt_now)); |
970 | downheap ((WT *)periodics, periodiccnt, 0); |
1506 | downheap (periodics, periodiccnt, 1); |
971 | } |
1507 | } |
972 | else if (w->interval) |
1508 | else if (w->interval) |
973 | { |
1509 | { |
974 | ((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
1510 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1511 | if (ev_at (w) - ev_rt_now <= TIME_EPSILON) ev_at (w) += w->interval; |
975 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now)); |
1512 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ev_at (w) > ev_rt_now)); |
976 | downheap ((WT *)periodics, periodiccnt, 0); |
1513 | downheap (periodics, periodiccnt, 1); |
977 | } |
1514 | } |
978 | else |
1515 | else |
979 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1516 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
980 | |
1517 | |
981 | event (EV_A_ (W)w, EV_PERIODIC); |
1518 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
982 | } |
1519 | } |
983 | } |
1520 | } |
984 | |
1521 | |
985 | static void |
1522 | static void noinline |
986 | periodics_reschedule (EV_P) |
1523 | periodics_reschedule (EV_P) |
987 | { |
1524 | { |
988 | int i; |
1525 | int i; |
989 | |
1526 | |
990 | /* adjust periodics after time jump */ |
1527 | /* adjust periodics after time jump */ |
991 | for (i = 0; i < periodiccnt; ++i) |
1528 | for (i = 0; i < periodiccnt; ++i) |
992 | { |
1529 | { |
993 | struct ev_periodic *w = periodics [i]; |
1530 | ev_periodic *w = (ev_periodic *)periodics [i]; |
994 | |
1531 | |
995 | if (w->reschedule_cb) |
1532 | if (w->reschedule_cb) |
996 | ((WT)w)->at = w->reschedule_cb (w, rt_now); |
1533 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
997 | else if (w->interval) |
1534 | else if (w->interval) |
998 | ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1535 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
999 | } |
1536 | } |
1000 | |
1537 | |
1001 | /* now rebuild the heap */ |
1538 | /* now rebuild the heap */ |
1002 | for (i = periodiccnt >> 1; i--; ) |
1539 | for (i = periodiccnt >> 1; i--; ) |
1003 | downheap ((WT *)periodics, periodiccnt, i); |
1540 | downheap (periodics, periodiccnt, i); |
1004 | } |
1541 | } |
|
|
1542 | #endif |
1005 | |
1543 | |
1006 | inline int |
1544 | #if EV_IDLE_ENABLE |
1007 | time_update_monotonic (EV_P) |
1545 | void inline_size |
|
|
1546 | idle_reify (EV_P) |
1008 | { |
1547 | { |
1009 | mn_now = get_clock (); |
1548 | if (expect_false (idleall)) |
1010 | |
|
|
1011 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
|
|
1012 | { |
|
|
1013 | rt_now = rtmn_diff + mn_now; |
|
|
1014 | return 0; |
|
|
1015 | } |
1549 | { |
1016 | else |
1550 | int pri; |
|
|
1551 | |
|
|
1552 | for (pri = NUMPRI; pri--; ) |
|
|
1553 | { |
|
|
1554 | if (pendingcnt [pri]) |
|
|
1555 | break; |
|
|
1556 | |
|
|
1557 | if (idlecnt [pri]) |
|
|
1558 | { |
|
|
1559 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
|
|
1560 | break; |
|
|
1561 | } |
|
|
1562 | } |
1017 | { |
1563 | } |
1018 | now_floor = mn_now; |
|
|
1019 | rt_now = ev_time (); |
|
|
1020 | return 1; |
|
|
1021 | } |
|
|
1022 | } |
1564 | } |
|
|
1565 | #endif |
1023 | |
1566 | |
1024 | static void |
1567 | void inline_speed |
1025 | time_update (EV_P) |
1568 | time_update (EV_P_ ev_tstamp max_block) |
1026 | { |
1569 | { |
1027 | int i; |
1570 | int i; |
1028 | |
1571 | |
1029 | #if EV_USE_MONOTONIC |
1572 | #if EV_USE_MONOTONIC |
1030 | if (expect_true (have_monotonic)) |
1573 | if (expect_true (have_monotonic)) |
1031 | { |
1574 | { |
1032 | if (time_update_monotonic (EV_A)) |
1575 | ev_tstamp odiff = rtmn_diff; |
|
|
1576 | |
|
|
1577 | mn_now = get_clock (); |
|
|
1578 | |
|
|
1579 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
1580 | /* interpolate in the meantime */ |
|
|
1581 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1033 | { |
1582 | { |
1034 | ev_tstamp odiff = rtmn_diff; |
1583 | ev_rt_now = rtmn_diff + mn_now; |
|
|
1584 | return; |
|
|
1585 | } |
1035 | |
1586 | |
|
|
1587 | now_floor = mn_now; |
|
|
1588 | ev_rt_now = ev_time (); |
|
|
1589 | |
1036 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
1590 | /* loop a few times, before making important decisions. |
|
|
1591 | * on the choice of "4": one iteration isn't enough, |
|
|
1592 | * in case we get preempted during the calls to |
|
|
1593 | * ev_time and get_clock. a second call is almost guaranteed |
|
|
1594 | * to succeed in that case, though. and looping a few more times |
|
|
1595 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1596 | * in the unlikely event of having been preempted here. |
|
|
1597 | */ |
|
|
1598 | for (i = 4; --i; ) |
1037 | { |
1599 | { |
1038 | rtmn_diff = rt_now - mn_now; |
1600 | rtmn_diff = ev_rt_now - mn_now; |
1039 | |
1601 | |
1040 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1602 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1041 | return; /* all is well */ |
1603 | return; /* all is well */ |
1042 | |
1604 | |
1043 | rt_now = ev_time (); |
1605 | ev_rt_now = ev_time (); |
1044 | mn_now = get_clock (); |
1606 | mn_now = get_clock (); |
1045 | now_floor = mn_now; |
1607 | now_floor = mn_now; |
1046 | } |
1608 | } |
1047 | |
1609 | |
|
|
1610 | # if EV_PERIODIC_ENABLE |
|
|
1611 | periodics_reschedule (EV_A); |
|
|
1612 | # endif |
|
|
1613 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1614 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1615 | } |
|
|
1616 | else |
|
|
1617 | #endif |
|
|
1618 | { |
|
|
1619 | ev_rt_now = ev_time (); |
|
|
1620 | |
|
|
1621 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
|
|
1622 | { |
|
|
1623 | #if EV_PERIODIC_ENABLE |
1048 | periodics_reschedule (EV_A); |
1624 | periodics_reschedule (EV_A); |
1049 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1625 | #endif |
1050 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1626 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1627 | for (i = 1; i <= timercnt; ++i) |
|
|
1628 | ev_at (timers [i]) += ev_rt_now - mn_now; |
1051 | } |
1629 | } |
1052 | } |
|
|
1053 | else |
|
|
1054 | #endif |
|
|
1055 | { |
|
|
1056 | rt_now = ev_time (); |
|
|
1057 | |
1630 | |
1058 | if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
|
|
1059 | { |
|
|
1060 | periodics_reschedule (EV_A); |
|
|
1061 | |
|
|
1062 | /* adjust timers. this is easy, as the offset is the same for all */ |
|
|
1063 | for (i = 0; i < timercnt; ++i) |
|
|
1064 | ((WT)timers [i])->at += rt_now - mn_now; |
|
|
1065 | } |
|
|
1066 | |
|
|
1067 | mn_now = rt_now; |
1631 | mn_now = ev_rt_now; |
1068 | } |
1632 | } |
1069 | } |
1633 | } |
1070 | |
1634 | |
1071 | void |
1635 | void |
1072 | ev_ref (EV_P) |
1636 | ev_ref (EV_P) |
… | |
… | |
1083 | static int loop_done; |
1647 | static int loop_done; |
1084 | |
1648 | |
1085 | void |
1649 | void |
1086 | ev_loop (EV_P_ int flags) |
1650 | ev_loop (EV_P_ int flags) |
1087 | { |
1651 | { |
1088 | double block; |
1652 | loop_done = EVUNLOOP_CANCEL; |
1089 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
1653 | |
|
|
1654 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1090 | |
1655 | |
1091 | do |
1656 | do |
1092 | { |
1657 | { |
|
|
1658 | #ifndef _WIN32 |
|
|
1659 | if (expect_false (curpid)) /* penalise the forking check even more */ |
|
|
1660 | if (expect_false (getpid () != curpid)) |
|
|
1661 | { |
|
|
1662 | curpid = getpid (); |
|
|
1663 | postfork = 1; |
|
|
1664 | } |
|
|
1665 | #endif |
|
|
1666 | |
|
|
1667 | #if EV_FORK_ENABLE |
|
|
1668 | /* we might have forked, so queue fork handlers */ |
|
|
1669 | if (expect_false (postfork)) |
|
|
1670 | if (forkcnt) |
|
|
1671 | { |
|
|
1672 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
|
|
1673 | call_pending (EV_A); |
|
|
1674 | } |
|
|
1675 | #endif |
|
|
1676 | |
1093 | /* queue check watchers (and execute them) */ |
1677 | /* queue prepare watchers (and execute them) */ |
1094 | if (expect_false (preparecnt)) |
1678 | if (expect_false (preparecnt)) |
1095 | { |
1679 | { |
1096 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1680 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1097 | call_pending (EV_A); |
1681 | call_pending (EV_A); |
1098 | } |
1682 | } |
1099 | |
1683 | |
|
|
1684 | if (expect_false (!activecnt)) |
|
|
1685 | break; |
|
|
1686 | |
1100 | /* we might have forked, so reify kernel state if necessary */ |
1687 | /* we might have forked, so reify kernel state if necessary */ |
1101 | if (expect_false (postfork)) |
1688 | if (expect_false (postfork)) |
1102 | loop_fork (EV_A); |
1689 | loop_fork (EV_A); |
1103 | |
1690 | |
1104 | /* update fd-related kernel structures */ |
1691 | /* update fd-related kernel structures */ |
1105 | fd_reify (EV_A); |
1692 | fd_reify (EV_A); |
1106 | |
1693 | |
1107 | /* calculate blocking time */ |
1694 | /* calculate blocking time */ |
|
|
1695 | { |
|
|
1696 | ev_tstamp waittime = 0.; |
|
|
1697 | ev_tstamp sleeptime = 0.; |
1108 | |
1698 | |
1109 | /* we only need this for !monotonic clock or timers, but as we basically |
1699 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1110 | always have timers, we just calculate it always */ |
|
|
1111 | #if EV_USE_MONOTONIC |
|
|
1112 | if (expect_true (have_monotonic)) |
|
|
1113 | time_update_monotonic (EV_A); |
|
|
1114 | else |
|
|
1115 | #endif |
|
|
1116 | { |
1700 | { |
1117 | rt_now = ev_time (); |
1701 | /* update time to cancel out callback processing overhead */ |
1118 | mn_now = rt_now; |
1702 | time_update (EV_A_ 1e100); |
1119 | } |
|
|
1120 | |
1703 | |
1121 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
|
|
1122 | block = 0.; |
|
|
1123 | else |
|
|
1124 | { |
|
|
1125 | block = MAX_BLOCKTIME; |
1704 | waittime = MAX_BLOCKTIME; |
1126 | |
1705 | |
1127 | if (timercnt) |
1706 | if (timercnt) |
1128 | { |
1707 | { |
1129 | ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; |
1708 | ev_tstamp to = ev_at (timers [1]) - mn_now + backend_fudge; |
1130 | if (block > to) block = to; |
1709 | if (waittime > to) waittime = to; |
1131 | } |
1710 | } |
1132 | |
1711 | |
|
|
1712 | #if EV_PERIODIC_ENABLE |
1133 | if (periodiccnt) |
1713 | if (periodiccnt) |
1134 | { |
1714 | { |
1135 | ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge; |
1715 | ev_tstamp to = ev_at (periodics [1]) - ev_rt_now + backend_fudge; |
1136 | if (block > to) block = to; |
1716 | if (waittime > to) waittime = to; |
1137 | } |
1717 | } |
|
|
1718 | #endif |
1138 | |
1719 | |
1139 | if (block < 0.) block = 0.; |
1720 | if (expect_false (waittime < timeout_blocktime)) |
|
|
1721 | waittime = timeout_blocktime; |
|
|
1722 | |
|
|
1723 | sleeptime = waittime - backend_fudge; |
|
|
1724 | |
|
|
1725 | if (expect_true (sleeptime > io_blocktime)) |
|
|
1726 | sleeptime = io_blocktime; |
|
|
1727 | |
|
|
1728 | if (sleeptime) |
|
|
1729 | { |
|
|
1730 | ev_sleep (sleeptime); |
|
|
1731 | waittime -= sleeptime; |
|
|
1732 | } |
1140 | } |
1733 | } |
1141 | |
1734 | |
1142 | method_poll (EV_A_ block); |
1735 | ++loop_count; |
|
|
1736 | backend_poll (EV_A_ waittime); |
1143 | |
1737 | |
1144 | /* update rt_now, do magic */ |
1738 | /* update ev_rt_now, do magic */ |
1145 | time_update (EV_A); |
1739 | time_update (EV_A_ waittime + sleeptime); |
|
|
1740 | } |
1146 | |
1741 | |
1147 | /* queue pending timers and reschedule them */ |
1742 | /* queue pending timers and reschedule them */ |
1148 | timers_reify (EV_A); /* relative timers called last */ |
1743 | timers_reify (EV_A); /* relative timers called last */ |
|
|
1744 | #if EV_PERIODIC_ENABLE |
1149 | periodics_reify (EV_A); /* absolute timers called first */ |
1745 | periodics_reify (EV_A); /* absolute timers called first */ |
|
|
1746 | #endif |
1150 | |
1747 | |
|
|
1748 | #if EV_IDLE_ENABLE |
1151 | /* queue idle watchers unless io or timers are pending */ |
1749 | /* queue idle watchers unless other events are pending */ |
1152 | if (idlecnt && !any_pending (EV_A)) |
1750 | idle_reify (EV_A); |
1153 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1751 | #endif |
1154 | |
1752 | |
1155 | /* queue check watchers, to be executed first */ |
1753 | /* queue check watchers, to be executed first */ |
1156 | if (checkcnt) |
1754 | if (expect_false (checkcnt)) |
1157 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1755 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1158 | |
1756 | |
1159 | call_pending (EV_A); |
1757 | call_pending (EV_A); |
1160 | } |
1758 | } |
1161 | while (activecnt && !loop_done); |
1759 | while (expect_true ( |
|
|
1760 | activecnt |
|
|
1761 | && !loop_done |
|
|
1762 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
1763 | )); |
1162 | |
1764 | |
1163 | if (loop_done != 2) |
1765 | if (loop_done == EVUNLOOP_ONE) |
1164 | loop_done = 0; |
1766 | loop_done = EVUNLOOP_CANCEL; |
1165 | } |
1767 | } |
1166 | |
1768 | |
1167 | void |
1769 | void |
1168 | ev_unloop (EV_P_ int how) |
1770 | ev_unloop (EV_P_ int how) |
1169 | { |
1771 | { |
1170 | loop_done = how; |
1772 | loop_done = how; |
1171 | } |
1773 | } |
1172 | |
1774 | |
1173 | /*****************************************************************************/ |
1775 | /*****************************************************************************/ |
1174 | |
1776 | |
1175 | inline void |
1777 | void inline_size |
1176 | wlist_add (WL *head, WL elem) |
1778 | wlist_add (WL *head, WL elem) |
1177 | { |
1779 | { |
1178 | elem->next = *head; |
1780 | elem->next = *head; |
1179 | *head = elem; |
1781 | *head = elem; |
1180 | } |
1782 | } |
1181 | |
1783 | |
1182 | inline void |
1784 | void inline_size |
1183 | wlist_del (WL *head, WL elem) |
1785 | wlist_del (WL *head, WL elem) |
1184 | { |
1786 | { |
1185 | while (*head) |
1787 | while (*head) |
1186 | { |
1788 | { |
1187 | if (*head == elem) |
1789 | if (*head == elem) |
… | |
… | |
1192 | |
1794 | |
1193 | head = &(*head)->next; |
1795 | head = &(*head)->next; |
1194 | } |
1796 | } |
1195 | } |
1797 | } |
1196 | |
1798 | |
1197 | inline void |
1799 | void inline_speed |
1198 | ev_clear_pending (EV_P_ W w) |
1800 | clear_pending (EV_P_ W w) |
1199 | { |
1801 | { |
1200 | if (w->pending) |
1802 | if (w->pending) |
1201 | { |
1803 | { |
1202 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1804 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1203 | w->pending = 0; |
1805 | w->pending = 0; |
1204 | } |
1806 | } |
1205 | } |
1807 | } |
1206 | |
1808 | |
1207 | inline void |
1809 | int |
|
|
1810 | ev_clear_pending (EV_P_ void *w) |
|
|
1811 | { |
|
|
1812 | W w_ = (W)w; |
|
|
1813 | int pending = w_->pending; |
|
|
1814 | |
|
|
1815 | if (expect_true (pending)) |
|
|
1816 | { |
|
|
1817 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
1818 | w_->pending = 0; |
|
|
1819 | p->w = 0; |
|
|
1820 | return p->events; |
|
|
1821 | } |
|
|
1822 | else |
|
|
1823 | return 0; |
|
|
1824 | } |
|
|
1825 | |
|
|
1826 | void inline_size |
|
|
1827 | pri_adjust (EV_P_ W w) |
|
|
1828 | { |
|
|
1829 | int pri = w->priority; |
|
|
1830 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
|
|
1831 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
|
|
1832 | w->priority = pri; |
|
|
1833 | } |
|
|
1834 | |
|
|
1835 | void inline_speed |
1208 | ev_start (EV_P_ W w, int active) |
1836 | ev_start (EV_P_ W w, int active) |
1209 | { |
1837 | { |
1210 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
1838 | pri_adjust (EV_A_ w); |
1211 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
1212 | |
|
|
1213 | w->active = active; |
1839 | w->active = active; |
1214 | ev_ref (EV_A); |
1840 | ev_ref (EV_A); |
1215 | } |
1841 | } |
1216 | |
1842 | |
1217 | inline void |
1843 | void inline_size |
1218 | ev_stop (EV_P_ W w) |
1844 | ev_stop (EV_P_ W w) |
1219 | { |
1845 | { |
1220 | ev_unref (EV_A); |
1846 | ev_unref (EV_A); |
1221 | w->active = 0; |
1847 | w->active = 0; |
1222 | } |
1848 | } |
1223 | |
1849 | |
1224 | /*****************************************************************************/ |
1850 | /*****************************************************************************/ |
1225 | |
1851 | |
1226 | void |
1852 | void noinline |
1227 | ev_io_start (EV_P_ struct ev_io *w) |
1853 | ev_io_start (EV_P_ ev_io *w) |
1228 | { |
1854 | { |
1229 | int fd = w->fd; |
1855 | int fd = w->fd; |
1230 | |
1856 | |
1231 | if (ev_is_active (w)) |
1857 | if (expect_false (ev_is_active (w))) |
1232 | return; |
1858 | return; |
1233 | |
1859 | |
1234 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1860 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1235 | |
1861 | |
1236 | ev_start (EV_A_ (W)w, 1); |
1862 | ev_start (EV_A_ (W)w, 1); |
1237 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1863 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1238 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1864 | wlist_add (&anfds[fd].head, (WL)w); |
1239 | |
1865 | |
1240 | fd_change (EV_A_ fd); |
1866 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
|
|
1867 | w->events &= ~EV_IOFDSET; |
1241 | } |
1868 | } |
1242 | |
1869 | |
1243 | void |
1870 | void noinline |
1244 | ev_io_stop (EV_P_ struct ev_io *w) |
1871 | ev_io_stop (EV_P_ ev_io *w) |
1245 | { |
1872 | { |
1246 | ev_clear_pending (EV_A_ (W)w); |
1873 | clear_pending (EV_A_ (W)w); |
1247 | if (!ev_is_active (w)) |
1874 | if (expect_false (!ev_is_active (w))) |
1248 | return; |
1875 | return; |
1249 | |
1876 | |
|
|
1877 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
1878 | |
1250 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1879 | wlist_del (&anfds[w->fd].head, (WL)w); |
1251 | ev_stop (EV_A_ (W)w); |
1880 | ev_stop (EV_A_ (W)w); |
1252 | |
1881 | |
1253 | fd_change (EV_A_ w->fd); |
1882 | fd_change (EV_A_ w->fd, 1); |
1254 | } |
1883 | } |
1255 | |
1884 | |
1256 | void |
1885 | void noinline |
1257 | ev_timer_start (EV_P_ struct ev_timer *w) |
1886 | ev_timer_start (EV_P_ ev_timer *w) |
1258 | { |
1887 | { |
1259 | if (ev_is_active (w)) |
1888 | if (expect_false (ev_is_active (w))) |
1260 | return; |
1889 | return; |
1261 | |
1890 | |
1262 | ((WT)w)->at += mn_now; |
1891 | ev_at (w) += mn_now; |
1263 | |
1892 | |
1264 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1893 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1265 | |
1894 | |
1266 | ev_start (EV_A_ (W)w, ++timercnt); |
1895 | ev_start (EV_A_ (W)w, ++timercnt); |
1267 | array_needsize (struct ev_timer *, timers, timermax, timercnt, (void)); |
1896 | array_needsize (WT, timers, timermax, timercnt + 1, EMPTY2); |
1268 | timers [timercnt - 1] = w; |
1897 | timers [timercnt] = (WT)w; |
1269 | upheap ((WT *)timers, timercnt - 1); |
1898 | upheap (timers, timercnt); |
1270 | |
1899 | |
1271 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1900 | /*assert (("internal timer heap corruption", timers [((W)w)->active] == w));*/ |
1272 | } |
1901 | } |
1273 | |
1902 | |
1274 | void |
1903 | void noinline |
1275 | ev_timer_stop (EV_P_ struct ev_timer *w) |
1904 | ev_timer_stop (EV_P_ ev_timer *w) |
1276 | { |
1905 | { |
1277 | ev_clear_pending (EV_A_ (W)w); |
1906 | clear_pending (EV_A_ (W)w); |
1278 | if (!ev_is_active (w)) |
1907 | if (expect_false (!ev_is_active (w))) |
1279 | return; |
1908 | return; |
1280 | |
1909 | |
1281 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1910 | assert (("internal timer heap corruption", timers [((W)w)->active] == (WT)w)); |
1282 | |
1911 | |
1283 | if (((W)w)->active < timercnt--) |
1912 | { |
|
|
1913 | int active = ((W)w)->active; |
|
|
1914 | |
|
|
1915 | if (expect_true (active < timercnt)) |
1284 | { |
1916 | { |
1285 | timers [((W)w)->active - 1] = timers [timercnt]; |
1917 | timers [active] = timers [timercnt]; |
1286 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1918 | adjustheap (timers, timercnt, active); |
1287 | } |
1919 | } |
1288 | |
1920 | |
1289 | ((WT)w)->at = w->repeat; |
1921 | --timercnt; |
|
|
1922 | } |
|
|
1923 | |
|
|
1924 | ev_at (w) -= mn_now; |
1290 | |
1925 | |
1291 | ev_stop (EV_A_ (W)w); |
1926 | ev_stop (EV_A_ (W)w); |
1292 | } |
1927 | } |
1293 | |
1928 | |
1294 | void |
1929 | void noinline |
1295 | ev_timer_again (EV_P_ struct ev_timer *w) |
1930 | ev_timer_again (EV_P_ ev_timer *w) |
1296 | { |
1931 | { |
1297 | if (ev_is_active (w)) |
1932 | if (ev_is_active (w)) |
1298 | { |
1933 | { |
1299 | if (w->repeat) |
1934 | if (w->repeat) |
1300 | { |
1935 | { |
1301 | ((WT)w)->at = mn_now + w->repeat; |
1936 | ev_at (w) = mn_now + w->repeat; |
1302 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1937 | adjustheap (timers, timercnt, ((W)w)->active); |
1303 | } |
1938 | } |
1304 | else |
1939 | else |
1305 | ev_timer_stop (EV_A_ w); |
1940 | ev_timer_stop (EV_A_ w); |
1306 | } |
1941 | } |
1307 | else if (w->repeat) |
1942 | else if (w->repeat) |
|
|
1943 | { |
|
|
1944 | ev_at (w) = w->repeat; |
1308 | ev_timer_start (EV_A_ w); |
1945 | ev_timer_start (EV_A_ w); |
|
|
1946 | } |
1309 | } |
1947 | } |
1310 | |
1948 | |
1311 | void |
1949 | #if EV_PERIODIC_ENABLE |
|
|
1950 | void noinline |
1312 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1951 | ev_periodic_start (EV_P_ ev_periodic *w) |
1313 | { |
1952 | { |
1314 | if (ev_is_active (w)) |
1953 | if (expect_false (ev_is_active (w))) |
1315 | return; |
1954 | return; |
1316 | |
1955 | |
1317 | if (w->reschedule_cb) |
1956 | if (w->reschedule_cb) |
1318 | ((WT)w)->at = w->reschedule_cb (w, rt_now); |
1957 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1319 | else if (w->interval) |
1958 | else if (w->interval) |
1320 | { |
1959 | { |
1321 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1960 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1322 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1961 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1323 | ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1962 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1324 | } |
1963 | } |
|
|
1964 | else |
|
|
1965 | ev_at (w) = w->offset; |
1325 | |
1966 | |
1326 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1967 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1327 | array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void)); |
1968 | array_needsize (WT, periodics, periodicmax, periodiccnt + 1, EMPTY2); |
1328 | periodics [periodiccnt - 1] = w; |
1969 | periodics [periodiccnt] = (WT)w; |
1329 | upheap ((WT *)periodics, periodiccnt - 1); |
1970 | upheap (periodics, periodiccnt); |
1330 | |
1971 | |
1331 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1972 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
1332 | } |
1973 | } |
1333 | |
1974 | |
1334 | void |
1975 | void noinline |
1335 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
1976 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1336 | { |
1977 | { |
1337 | ev_clear_pending (EV_A_ (W)w); |
1978 | clear_pending (EV_A_ (W)w); |
1338 | if (!ev_is_active (w)) |
1979 | if (expect_false (!ev_is_active (w))) |
1339 | return; |
1980 | return; |
1340 | |
1981 | |
1341 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1982 | assert (("internal periodic heap corruption", periodics [((W)w)->active] == (WT)w)); |
1342 | |
1983 | |
1343 | if (((W)w)->active < periodiccnt--) |
1984 | { |
|
|
1985 | int active = ((W)w)->active; |
|
|
1986 | |
|
|
1987 | if (expect_true (active < periodiccnt)) |
1344 | { |
1988 | { |
1345 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1989 | periodics [active] = periodics [periodiccnt]; |
1346 | downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1990 | adjustheap (periodics, periodiccnt, active); |
1347 | } |
1991 | } |
|
|
1992 | |
|
|
1993 | --periodiccnt; |
|
|
1994 | } |
1348 | |
1995 | |
1349 | ev_stop (EV_A_ (W)w); |
1996 | ev_stop (EV_A_ (W)w); |
1350 | } |
1997 | } |
1351 | |
1998 | |
1352 | void |
1999 | void noinline |
1353 | ev_periodic_again (EV_P_ struct ev_periodic *w) |
2000 | ev_periodic_again (EV_P_ ev_periodic *w) |
1354 | { |
2001 | { |
|
|
2002 | /* TODO: use adjustheap and recalculation */ |
1355 | ev_periodic_stop (EV_A_ w); |
2003 | ev_periodic_stop (EV_A_ w); |
1356 | ev_periodic_start (EV_A_ w); |
2004 | ev_periodic_start (EV_A_ w); |
1357 | } |
2005 | } |
1358 | |
2006 | #endif |
1359 | void |
|
|
1360 | ev_idle_start (EV_P_ struct ev_idle *w) |
|
|
1361 | { |
|
|
1362 | if (ev_is_active (w)) |
|
|
1363 | return; |
|
|
1364 | |
|
|
1365 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1366 | array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void)); |
|
|
1367 | idles [idlecnt - 1] = w; |
|
|
1368 | } |
|
|
1369 | |
|
|
1370 | void |
|
|
1371 | ev_idle_stop (EV_P_ struct ev_idle *w) |
|
|
1372 | { |
|
|
1373 | ev_clear_pending (EV_A_ (W)w); |
|
|
1374 | if (ev_is_active (w)) |
|
|
1375 | return; |
|
|
1376 | |
|
|
1377 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
|
|
1378 | ev_stop (EV_A_ (W)w); |
|
|
1379 | } |
|
|
1380 | |
|
|
1381 | void |
|
|
1382 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
|
|
1383 | { |
|
|
1384 | if (ev_is_active (w)) |
|
|
1385 | return; |
|
|
1386 | |
|
|
1387 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1388 | array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void)); |
|
|
1389 | prepares [preparecnt - 1] = w; |
|
|
1390 | } |
|
|
1391 | |
|
|
1392 | void |
|
|
1393 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
|
|
1394 | { |
|
|
1395 | ev_clear_pending (EV_A_ (W)w); |
|
|
1396 | if (ev_is_active (w)) |
|
|
1397 | return; |
|
|
1398 | |
|
|
1399 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
|
|
1400 | ev_stop (EV_A_ (W)w); |
|
|
1401 | } |
|
|
1402 | |
|
|
1403 | void |
|
|
1404 | ev_check_start (EV_P_ struct ev_check *w) |
|
|
1405 | { |
|
|
1406 | if (ev_is_active (w)) |
|
|
1407 | return; |
|
|
1408 | |
|
|
1409 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1410 | array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void)); |
|
|
1411 | checks [checkcnt - 1] = w; |
|
|
1412 | } |
|
|
1413 | |
|
|
1414 | void |
|
|
1415 | ev_check_stop (EV_P_ struct ev_check *w) |
|
|
1416 | { |
|
|
1417 | ev_clear_pending (EV_A_ (W)w); |
|
|
1418 | if (ev_is_active (w)) |
|
|
1419 | return; |
|
|
1420 | |
|
|
1421 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
|
|
1422 | ev_stop (EV_A_ (W)w); |
|
|
1423 | } |
|
|
1424 | |
2007 | |
1425 | #ifndef SA_RESTART |
2008 | #ifndef SA_RESTART |
1426 | # define SA_RESTART 0 |
2009 | # define SA_RESTART 0 |
1427 | #endif |
2010 | #endif |
1428 | |
2011 | |
1429 | void |
2012 | void noinline |
1430 | ev_signal_start (EV_P_ struct ev_signal *w) |
2013 | ev_signal_start (EV_P_ ev_signal *w) |
1431 | { |
2014 | { |
1432 | #if EV_MULTIPLICITY |
2015 | #if EV_MULTIPLICITY |
1433 | assert (("signal watchers are only supported in the default loop", loop == default_loop)); |
2016 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1434 | #endif |
2017 | #endif |
1435 | if (ev_is_active (w)) |
2018 | if (expect_false (ev_is_active (w))) |
1436 | return; |
2019 | return; |
1437 | |
2020 | |
1438 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2021 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1439 | |
2022 | |
|
|
2023 | evpipe_init (EV_A); |
|
|
2024 | |
|
|
2025 | { |
|
|
2026 | #ifndef _WIN32 |
|
|
2027 | sigset_t full, prev; |
|
|
2028 | sigfillset (&full); |
|
|
2029 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2030 | #endif |
|
|
2031 | |
|
|
2032 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
2033 | |
|
|
2034 | #ifndef _WIN32 |
|
|
2035 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
2036 | #endif |
|
|
2037 | } |
|
|
2038 | |
1440 | ev_start (EV_A_ (W)w, 1); |
2039 | ev_start (EV_A_ (W)w, 1); |
1441 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1442 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
2040 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1443 | |
2041 | |
1444 | if (!((WL)w)->next) |
2042 | if (!((WL)w)->next) |
1445 | { |
2043 | { |
1446 | #if WIN32 |
2044 | #if _WIN32 |
1447 | signal (w->signum, sighandler); |
2045 | signal (w->signum, ev_sighandler); |
1448 | #else |
2046 | #else |
1449 | struct sigaction sa; |
2047 | struct sigaction sa; |
1450 | sa.sa_handler = sighandler; |
2048 | sa.sa_handler = ev_sighandler; |
1451 | sigfillset (&sa.sa_mask); |
2049 | sigfillset (&sa.sa_mask); |
1452 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2050 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1453 | sigaction (w->signum, &sa, 0); |
2051 | sigaction (w->signum, &sa, 0); |
1454 | #endif |
2052 | #endif |
1455 | } |
2053 | } |
1456 | } |
2054 | } |
1457 | |
2055 | |
1458 | void |
2056 | void noinline |
1459 | ev_signal_stop (EV_P_ struct ev_signal *w) |
2057 | ev_signal_stop (EV_P_ ev_signal *w) |
1460 | { |
2058 | { |
1461 | ev_clear_pending (EV_A_ (W)w); |
2059 | clear_pending (EV_A_ (W)w); |
1462 | if (!ev_is_active (w)) |
2060 | if (expect_false (!ev_is_active (w))) |
1463 | return; |
2061 | return; |
1464 | |
2062 | |
1465 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
2063 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1466 | ev_stop (EV_A_ (W)w); |
2064 | ev_stop (EV_A_ (W)w); |
1467 | |
2065 | |
1468 | if (!signals [w->signum - 1].head) |
2066 | if (!signals [w->signum - 1].head) |
1469 | signal (w->signum, SIG_DFL); |
2067 | signal (w->signum, SIG_DFL); |
1470 | } |
2068 | } |
1471 | |
2069 | |
1472 | void |
2070 | void |
1473 | ev_child_start (EV_P_ struct ev_child *w) |
2071 | ev_child_start (EV_P_ ev_child *w) |
1474 | { |
2072 | { |
1475 | #if EV_MULTIPLICITY |
2073 | #if EV_MULTIPLICITY |
1476 | assert (("child watchers are only supported in the default loop", loop == default_loop)); |
2074 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1477 | #endif |
2075 | #endif |
1478 | if (ev_is_active (w)) |
2076 | if (expect_false (ev_is_active (w))) |
1479 | return; |
2077 | return; |
1480 | |
2078 | |
1481 | ev_start (EV_A_ (W)w, 1); |
2079 | ev_start (EV_A_ (W)w, 1); |
1482 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
2080 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1483 | } |
2081 | } |
1484 | |
2082 | |
1485 | void |
2083 | void |
1486 | ev_child_stop (EV_P_ struct ev_child *w) |
2084 | ev_child_stop (EV_P_ ev_child *w) |
1487 | { |
2085 | { |
1488 | ev_clear_pending (EV_A_ (W)w); |
2086 | clear_pending (EV_A_ (W)w); |
1489 | if (ev_is_active (w)) |
2087 | if (expect_false (!ev_is_active (w))) |
1490 | return; |
2088 | return; |
1491 | |
2089 | |
1492 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
2090 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1493 | ev_stop (EV_A_ (W)w); |
2091 | ev_stop (EV_A_ (W)w); |
1494 | } |
2092 | } |
1495 | |
2093 | |
|
|
2094 | #if EV_STAT_ENABLE |
|
|
2095 | |
|
|
2096 | # ifdef _WIN32 |
|
|
2097 | # undef lstat |
|
|
2098 | # define lstat(a,b) _stati64 (a,b) |
|
|
2099 | # endif |
|
|
2100 | |
|
|
2101 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2102 | #define MIN_STAT_INTERVAL 0.1074891 |
|
|
2103 | |
|
|
2104 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
|
|
2105 | |
|
|
2106 | #if EV_USE_INOTIFY |
|
|
2107 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
2108 | |
|
|
2109 | static void noinline |
|
|
2110 | infy_add (EV_P_ ev_stat *w) |
|
|
2111 | { |
|
|
2112 | 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); |
|
|
2113 | |
|
|
2114 | if (w->wd < 0) |
|
|
2115 | { |
|
|
2116 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2117 | |
|
|
2118 | /* monitor some parent directory for speedup hints */ |
|
|
2119 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
|
|
2120 | { |
|
|
2121 | char path [4096]; |
|
|
2122 | strcpy (path, w->path); |
|
|
2123 | |
|
|
2124 | do |
|
|
2125 | { |
|
|
2126 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
|
|
2127 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
|
|
2128 | |
|
|
2129 | char *pend = strrchr (path, '/'); |
|
|
2130 | |
|
|
2131 | if (!pend) |
|
|
2132 | break; /* whoops, no '/', complain to your admin */ |
|
|
2133 | |
|
|
2134 | *pend = 0; |
|
|
2135 | w->wd = inotify_add_watch (fs_fd, path, mask); |
|
|
2136 | } |
|
|
2137 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
|
|
2138 | } |
|
|
2139 | } |
|
|
2140 | else |
|
|
2141 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2142 | |
|
|
2143 | if (w->wd >= 0) |
|
|
2144 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2145 | } |
|
|
2146 | |
|
|
2147 | static void noinline |
|
|
2148 | infy_del (EV_P_ ev_stat *w) |
|
|
2149 | { |
|
|
2150 | int slot; |
|
|
2151 | int wd = w->wd; |
|
|
2152 | |
|
|
2153 | if (wd < 0) |
|
|
2154 | return; |
|
|
2155 | |
|
|
2156 | w->wd = -2; |
|
|
2157 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
|
|
2158 | wlist_del (&fs_hash [slot].head, (WL)w); |
|
|
2159 | |
|
|
2160 | /* remove this watcher, if others are watching it, they will rearm */ |
|
|
2161 | inotify_rm_watch (fs_fd, wd); |
|
|
2162 | } |
|
|
2163 | |
|
|
2164 | static void noinline |
|
|
2165 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
|
|
2166 | { |
|
|
2167 | if (slot < 0) |
|
|
2168 | /* overflow, need to check for all hahs slots */ |
|
|
2169 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2170 | infy_wd (EV_A_ slot, wd, ev); |
|
|
2171 | else |
|
|
2172 | { |
|
|
2173 | WL w_; |
|
|
2174 | |
|
|
2175 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
|
|
2176 | { |
|
|
2177 | ev_stat *w = (ev_stat *)w_; |
|
|
2178 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
|
|
2179 | |
|
|
2180 | if (w->wd == wd || wd == -1) |
|
|
2181 | { |
|
|
2182 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
|
|
2183 | { |
|
|
2184 | w->wd = -1; |
|
|
2185 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2186 | } |
|
|
2187 | |
|
|
2188 | stat_timer_cb (EV_A_ &w->timer, 0); |
|
|
2189 | } |
|
|
2190 | } |
|
|
2191 | } |
|
|
2192 | } |
|
|
2193 | |
|
|
2194 | static void |
|
|
2195 | infy_cb (EV_P_ ev_io *w, int revents) |
|
|
2196 | { |
|
|
2197 | char buf [EV_INOTIFY_BUFSIZE]; |
|
|
2198 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2199 | int ofs; |
|
|
2200 | int len = read (fs_fd, buf, sizeof (buf)); |
|
|
2201 | |
|
|
2202 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
|
|
2203 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
2204 | } |
|
|
2205 | |
|
|
2206 | void inline_size |
|
|
2207 | infy_init (EV_P) |
|
|
2208 | { |
|
|
2209 | if (fs_fd != -2) |
|
|
2210 | return; |
|
|
2211 | |
|
|
2212 | fs_fd = inotify_init (); |
|
|
2213 | |
|
|
2214 | if (fs_fd >= 0) |
|
|
2215 | { |
|
|
2216 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
|
|
2217 | ev_set_priority (&fs_w, EV_MAXPRI); |
|
|
2218 | ev_io_start (EV_A_ &fs_w); |
|
|
2219 | } |
|
|
2220 | } |
|
|
2221 | |
|
|
2222 | void inline_size |
|
|
2223 | infy_fork (EV_P) |
|
|
2224 | { |
|
|
2225 | int slot; |
|
|
2226 | |
|
|
2227 | if (fs_fd < 0) |
|
|
2228 | return; |
|
|
2229 | |
|
|
2230 | close (fs_fd); |
|
|
2231 | fs_fd = inotify_init (); |
|
|
2232 | |
|
|
2233 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2234 | { |
|
|
2235 | WL w_ = fs_hash [slot].head; |
|
|
2236 | fs_hash [slot].head = 0; |
|
|
2237 | |
|
|
2238 | while (w_) |
|
|
2239 | { |
|
|
2240 | ev_stat *w = (ev_stat *)w_; |
|
|
2241 | w_ = w_->next; /* lets us add this watcher */ |
|
|
2242 | |
|
|
2243 | w->wd = -1; |
|
|
2244 | |
|
|
2245 | if (fs_fd >= 0) |
|
|
2246 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2247 | else |
|
|
2248 | ev_timer_start (EV_A_ &w->timer); |
|
|
2249 | } |
|
|
2250 | |
|
|
2251 | } |
|
|
2252 | } |
|
|
2253 | |
|
|
2254 | #endif |
|
|
2255 | |
|
|
2256 | void |
|
|
2257 | ev_stat_stat (EV_P_ ev_stat *w) |
|
|
2258 | { |
|
|
2259 | if (lstat (w->path, &w->attr) < 0) |
|
|
2260 | w->attr.st_nlink = 0; |
|
|
2261 | else if (!w->attr.st_nlink) |
|
|
2262 | w->attr.st_nlink = 1; |
|
|
2263 | } |
|
|
2264 | |
|
|
2265 | static void noinline |
|
|
2266 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
2267 | { |
|
|
2268 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
2269 | |
|
|
2270 | /* we copy this here each the time so that */ |
|
|
2271 | /* prev has the old value when the callback gets invoked */ |
|
|
2272 | w->prev = w->attr; |
|
|
2273 | ev_stat_stat (EV_A_ w); |
|
|
2274 | |
|
|
2275 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
|
|
2276 | if ( |
|
|
2277 | w->prev.st_dev != w->attr.st_dev |
|
|
2278 | || w->prev.st_ino != w->attr.st_ino |
|
|
2279 | || w->prev.st_mode != w->attr.st_mode |
|
|
2280 | || w->prev.st_nlink != w->attr.st_nlink |
|
|
2281 | || w->prev.st_uid != w->attr.st_uid |
|
|
2282 | || w->prev.st_gid != w->attr.st_gid |
|
|
2283 | || w->prev.st_rdev != w->attr.st_rdev |
|
|
2284 | || w->prev.st_size != w->attr.st_size |
|
|
2285 | || w->prev.st_atime != w->attr.st_atime |
|
|
2286 | || w->prev.st_mtime != w->attr.st_mtime |
|
|
2287 | || w->prev.st_ctime != w->attr.st_ctime |
|
|
2288 | ) { |
|
|
2289 | #if EV_USE_INOTIFY |
|
|
2290 | infy_del (EV_A_ w); |
|
|
2291 | infy_add (EV_A_ w); |
|
|
2292 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2293 | #endif |
|
|
2294 | |
|
|
2295 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
2296 | } |
|
|
2297 | } |
|
|
2298 | |
|
|
2299 | void |
|
|
2300 | ev_stat_start (EV_P_ ev_stat *w) |
|
|
2301 | { |
|
|
2302 | if (expect_false (ev_is_active (w))) |
|
|
2303 | return; |
|
|
2304 | |
|
|
2305 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2306 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2307 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2308 | |
|
|
2309 | ev_stat_stat (EV_A_ w); |
|
|
2310 | |
|
|
2311 | if (w->interval < MIN_STAT_INTERVAL) |
|
|
2312 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2313 | |
|
|
2314 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
|
|
2315 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
2316 | |
|
|
2317 | #if EV_USE_INOTIFY |
|
|
2318 | infy_init (EV_A); |
|
|
2319 | |
|
|
2320 | if (fs_fd >= 0) |
|
|
2321 | infy_add (EV_A_ w); |
|
|
2322 | else |
|
|
2323 | #endif |
|
|
2324 | ev_timer_start (EV_A_ &w->timer); |
|
|
2325 | |
|
|
2326 | ev_start (EV_A_ (W)w, 1); |
|
|
2327 | } |
|
|
2328 | |
|
|
2329 | void |
|
|
2330 | ev_stat_stop (EV_P_ ev_stat *w) |
|
|
2331 | { |
|
|
2332 | clear_pending (EV_A_ (W)w); |
|
|
2333 | if (expect_false (!ev_is_active (w))) |
|
|
2334 | return; |
|
|
2335 | |
|
|
2336 | #if EV_USE_INOTIFY |
|
|
2337 | infy_del (EV_A_ w); |
|
|
2338 | #endif |
|
|
2339 | ev_timer_stop (EV_A_ &w->timer); |
|
|
2340 | |
|
|
2341 | ev_stop (EV_A_ (W)w); |
|
|
2342 | } |
|
|
2343 | #endif |
|
|
2344 | |
|
|
2345 | #if EV_IDLE_ENABLE |
|
|
2346 | void |
|
|
2347 | ev_idle_start (EV_P_ ev_idle *w) |
|
|
2348 | { |
|
|
2349 | if (expect_false (ev_is_active (w))) |
|
|
2350 | return; |
|
|
2351 | |
|
|
2352 | pri_adjust (EV_A_ (W)w); |
|
|
2353 | |
|
|
2354 | { |
|
|
2355 | int active = ++idlecnt [ABSPRI (w)]; |
|
|
2356 | |
|
|
2357 | ++idleall; |
|
|
2358 | ev_start (EV_A_ (W)w, active); |
|
|
2359 | |
|
|
2360 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
|
|
2361 | idles [ABSPRI (w)][active - 1] = w; |
|
|
2362 | } |
|
|
2363 | } |
|
|
2364 | |
|
|
2365 | void |
|
|
2366 | ev_idle_stop (EV_P_ ev_idle *w) |
|
|
2367 | { |
|
|
2368 | clear_pending (EV_A_ (W)w); |
|
|
2369 | if (expect_false (!ev_is_active (w))) |
|
|
2370 | return; |
|
|
2371 | |
|
|
2372 | { |
|
|
2373 | int active = ((W)w)->active; |
|
|
2374 | |
|
|
2375 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
|
|
2376 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
|
|
2377 | |
|
|
2378 | ev_stop (EV_A_ (W)w); |
|
|
2379 | --idleall; |
|
|
2380 | } |
|
|
2381 | } |
|
|
2382 | #endif |
|
|
2383 | |
|
|
2384 | void |
|
|
2385 | ev_prepare_start (EV_P_ ev_prepare *w) |
|
|
2386 | { |
|
|
2387 | if (expect_false (ev_is_active (w))) |
|
|
2388 | return; |
|
|
2389 | |
|
|
2390 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
2391 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
|
|
2392 | prepares [preparecnt - 1] = w; |
|
|
2393 | } |
|
|
2394 | |
|
|
2395 | void |
|
|
2396 | ev_prepare_stop (EV_P_ ev_prepare *w) |
|
|
2397 | { |
|
|
2398 | clear_pending (EV_A_ (W)w); |
|
|
2399 | if (expect_false (!ev_is_active (w))) |
|
|
2400 | return; |
|
|
2401 | |
|
|
2402 | { |
|
|
2403 | int active = ((W)w)->active; |
|
|
2404 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
2405 | ((W)prepares [active - 1])->active = active; |
|
|
2406 | } |
|
|
2407 | |
|
|
2408 | ev_stop (EV_A_ (W)w); |
|
|
2409 | } |
|
|
2410 | |
|
|
2411 | void |
|
|
2412 | ev_check_start (EV_P_ ev_check *w) |
|
|
2413 | { |
|
|
2414 | if (expect_false (ev_is_active (w))) |
|
|
2415 | return; |
|
|
2416 | |
|
|
2417 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
2418 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
|
|
2419 | checks [checkcnt - 1] = w; |
|
|
2420 | } |
|
|
2421 | |
|
|
2422 | void |
|
|
2423 | ev_check_stop (EV_P_ ev_check *w) |
|
|
2424 | { |
|
|
2425 | clear_pending (EV_A_ (W)w); |
|
|
2426 | if (expect_false (!ev_is_active (w))) |
|
|
2427 | return; |
|
|
2428 | |
|
|
2429 | { |
|
|
2430 | int active = ((W)w)->active; |
|
|
2431 | checks [active - 1] = checks [--checkcnt]; |
|
|
2432 | ((W)checks [active - 1])->active = active; |
|
|
2433 | } |
|
|
2434 | |
|
|
2435 | ev_stop (EV_A_ (W)w); |
|
|
2436 | } |
|
|
2437 | |
|
|
2438 | #if EV_EMBED_ENABLE |
|
|
2439 | void noinline |
|
|
2440 | ev_embed_sweep (EV_P_ ev_embed *w) |
|
|
2441 | { |
|
|
2442 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2443 | } |
|
|
2444 | |
|
|
2445 | static void |
|
|
2446 | embed_io_cb (EV_P_ ev_io *io, int revents) |
|
|
2447 | { |
|
|
2448 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
|
|
2449 | |
|
|
2450 | if (ev_cb (w)) |
|
|
2451 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
|
|
2452 | else |
|
|
2453 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2454 | } |
|
|
2455 | |
|
|
2456 | static void |
|
|
2457 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
2458 | { |
|
|
2459 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
2460 | |
|
|
2461 | { |
|
|
2462 | struct ev_loop *loop = w->other; |
|
|
2463 | |
|
|
2464 | while (fdchangecnt) |
|
|
2465 | { |
|
|
2466 | fd_reify (EV_A); |
|
|
2467 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2468 | } |
|
|
2469 | } |
|
|
2470 | } |
|
|
2471 | |
|
|
2472 | #if 0 |
|
|
2473 | static void |
|
|
2474 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
2475 | { |
|
|
2476 | ev_idle_stop (EV_A_ idle); |
|
|
2477 | } |
|
|
2478 | #endif |
|
|
2479 | |
|
|
2480 | void |
|
|
2481 | ev_embed_start (EV_P_ ev_embed *w) |
|
|
2482 | { |
|
|
2483 | if (expect_false (ev_is_active (w))) |
|
|
2484 | return; |
|
|
2485 | |
|
|
2486 | { |
|
|
2487 | struct ev_loop *loop = w->other; |
|
|
2488 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
|
|
2489 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
|
|
2490 | } |
|
|
2491 | |
|
|
2492 | ev_set_priority (&w->io, ev_priority (w)); |
|
|
2493 | ev_io_start (EV_A_ &w->io); |
|
|
2494 | |
|
|
2495 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
2496 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
2497 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
2498 | |
|
|
2499 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
2500 | |
|
|
2501 | ev_start (EV_A_ (W)w, 1); |
|
|
2502 | } |
|
|
2503 | |
|
|
2504 | void |
|
|
2505 | ev_embed_stop (EV_P_ ev_embed *w) |
|
|
2506 | { |
|
|
2507 | clear_pending (EV_A_ (W)w); |
|
|
2508 | if (expect_false (!ev_is_active (w))) |
|
|
2509 | return; |
|
|
2510 | |
|
|
2511 | ev_io_stop (EV_A_ &w->io); |
|
|
2512 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
2513 | |
|
|
2514 | ev_stop (EV_A_ (W)w); |
|
|
2515 | } |
|
|
2516 | #endif |
|
|
2517 | |
|
|
2518 | #if EV_FORK_ENABLE |
|
|
2519 | void |
|
|
2520 | ev_fork_start (EV_P_ ev_fork *w) |
|
|
2521 | { |
|
|
2522 | if (expect_false (ev_is_active (w))) |
|
|
2523 | return; |
|
|
2524 | |
|
|
2525 | ev_start (EV_A_ (W)w, ++forkcnt); |
|
|
2526 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
|
|
2527 | forks [forkcnt - 1] = w; |
|
|
2528 | } |
|
|
2529 | |
|
|
2530 | void |
|
|
2531 | ev_fork_stop (EV_P_ ev_fork *w) |
|
|
2532 | { |
|
|
2533 | clear_pending (EV_A_ (W)w); |
|
|
2534 | if (expect_false (!ev_is_active (w))) |
|
|
2535 | return; |
|
|
2536 | |
|
|
2537 | { |
|
|
2538 | int active = ((W)w)->active; |
|
|
2539 | forks [active - 1] = forks [--forkcnt]; |
|
|
2540 | ((W)forks [active - 1])->active = active; |
|
|
2541 | } |
|
|
2542 | |
|
|
2543 | ev_stop (EV_A_ (W)w); |
|
|
2544 | } |
|
|
2545 | #endif |
|
|
2546 | |
|
|
2547 | #if EV_ASYNC_ENABLE |
|
|
2548 | void |
|
|
2549 | ev_async_start (EV_P_ ev_async *w) |
|
|
2550 | { |
|
|
2551 | if (expect_false (ev_is_active (w))) |
|
|
2552 | return; |
|
|
2553 | |
|
|
2554 | evpipe_init (EV_A); |
|
|
2555 | |
|
|
2556 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
2557 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
2558 | asyncs [asynccnt - 1] = w; |
|
|
2559 | } |
|
|
2560 | |
|
|
2561 | void |
|
|
2562 | ev_async_stop (EV_P_ ev_async *w) |
|
|
2563 | { |
|
|
2564 | clear_pending (EV_A_ (W)w); |
|
|
2565 | if (expect_false (!ev_is_active (w))) |
|
|
2566 | return; |
|
|
2567 | |
|
|
2568 | { |
|
|
2569 | int active = ((W)w)->active; |
|
|
2570 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
2571 | ((W)asyncs [active - 1])->active = active; |
|
|
2572 | } |
|
|
2573 | |
|
|
2574 | ev_stop (EV_A_ (W)w); |
|
|
2575 | } |
|
|
2576 | |
|
|
2577 | void |
|
|
2578 | ev_async_send (EV_P_ ev_async *w) |
|
|
2579 | { |
|
|
2580 | w->sent = 1; |
|
|
2581 | evpipe_write (EV_A_ &gotasync); |
|
|
2582 | } |
|
|
2583 | #endif |
|
|
2584 | |
1496 | /*****************************************************************************/ |
2585 | /*****************************************************************************/ |
1497 | |
2586 | |
1498 | struct ev_once |
2587 | struct ev_once |
1499 | { |
2588 | { |
1500 | struct ev_io io; |
2589 | ev_io io; |
1501 | struct ev_timer to; |
2590 | ev_timer to; |
1502 | void (*cb)(int revents, void *arg); |
2591 | void (*cb)(int revents, void *arg); |
1503 | void *arg; |
2592 | void *arg; |
1504 | }; |
2593 | }; |
1505 | |
2594 | |
1506 | static void |
2595 | static void |
… | |
… | |
1515 | |
2604 | |
1516 | cb (revents, arg); |
2605 | cb (revents, arg); |
1517 | } |
2606 | } |
1518 | |
2607 | |
1519 | static void |
2608 | static void |
1520 | once_cb_io (EV_P_ struct ev_io *w, int revents) |
2609 | once_cb_io (EV_P_ ev_io *w, int revents) |
1521 | { |
2610 | { |
1522 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
2611 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1523 | } |
2612 | } |
1524 | |
2613 | |
1525 | static void |
2614 | static void |
1526 | once_cb_to (EV_P_ struct ev_timer *w, int revents) |
2615 | once_cb_to (EV_P_ ev_timer *w, int revents) |
1527 | { |
2616 | { |
1528 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
2617 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1529 | } |
2618 | } |
1530 | |
2619 | |
1531 | void |
2620 | void |
1532 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2621 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1533 | { |
2622 | { |
1534 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
2623 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1535 | |
2624 | |
1536 | if (!once) |
2625 | if (expect_false (!once)) |
|
|
2626 | { |
1537 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
2627 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1538 | else |
2628 | return; |
1539 | { |
2629 | } |
|
|
2630 | |
1540 | once->cb = cb; |
2631 | once->cb = cb; |
1541 | once->arg = arg; |
2632 | once->arg = arg; |
1542 | |
2633 | |
1543 | ev_watcher_init (&once->io, once_cb_io); |
2634 | ev_init (&once->io, once_cb_io); |
1544 | if (fd >= 0) |
2635 | if (fd >= 0) |
1545 | { |
2636 | { |
1546 | ev_io_set (&once->io, fd, events); |
2637 | ev_io_set (&once->io, fd, events); |
1547 | ev_io_start (EV_A_ &once->io); |
2638 | ev_io_start (EV_A_ &once->io); |
1548 | } |
2639 | } |
1549 | |
2640 | |
1550 | ev_watcher_init (&once->to, once_cb_to); |
2641 | ev_init (&once->to, once_cb_to); |
1551 | if (timeout >= 0.) |
2642 | if (timeout >= 0.) |
1552 | { |
2643 | { |
1553 | ev_timer_set (&once->to, timeout, 0.); |
2644 | ev_timer_set (&once->to, timeout, 0.); |
1554 | ev_timer_start (EV_A_ &once->to); |
2645 | ev_timer_start (EV_A_ &once->to); |
1555 | } |
|
|
1556 | } |
2646 | } |
1557 | } |
2647 | } |
1558 | |
2648 | |
|
|
2649 | #if EV_MULTIPLICITY |
|
|
2650 | #include "ev_wrap.h" |
|
|
2651 | #endif |
|
|
2652 | |
|
|
2653 | #ifdef __cplusplus |
|
|
2654 | } |
|
|
2655 | #endif |
|
|
2656 | |