1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * modification, are permitted provided that the following conditions are |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * met: |
9 | * |
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10 | * 1. Redistributions of source code must retain the above copyright notice, |
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11 | * this list of conditions and the following disclaimer. |
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12 | * |
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13 | * 2. Redistributions in binary form must reproduce the above copyright |
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14 | * notice, this list of conditions and the following disclaimer in the |
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15 | * documentation and/or other materials provided with the distribution. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
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18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
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19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
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20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
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21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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22 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
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23 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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24 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
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25 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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26 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
10 | * |
27 | * |
11 | * * Redistributions of source code must retain the above copyright |
28 | * Alternatively, the contents of this file may be used under the terms of |
12 | * notice, this list of conditions and the following disclaimer. |
29 | * the GNU General Public License ("GPL") version 2 or any later version, |
13 | * |
30 | * in which case the provisions of the GPL are applicable instead of |
14 | * * Redistributions in binary form must reproduce the above |
31 | * the above. If you wish to allow the use of your version of this file |
15 | * copyright notice, this list of conditions and the following |
32 | * only under the terms of the GPL and not to allow others to use your |
16 | * disclaimer in the documentation and/or other materials provided |
33 | * version of this file under the BSD license, indicate your decision |
17 | * with the distribution. |
34 | * by deleting the provisions above and replace them with the notice |
18 | * |
35 | * and other provisions required by the GPL. If you do not delete the |
19 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
36 | * provisions above, a recipient may use your version of this file under |
20 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
37 | * either the BSD or the GPL. |
21 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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22 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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23 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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24 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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25 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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30 | */ |
38 | */ |
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39 | |
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40 | #ifdef __cplusplus |
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41 | extern "C" { |
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42 | #endif |
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43 | |
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44 | /* this big block deduces configuration from config.h */ |
31 | #ifndef EV_STANDALONE |
45 | #ifndef EV_STANDALONE |
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46 | # ifdef EV_CONFIG_H |
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47 | # include EV_CONFIG_H |
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48 | # else |
32 | # include "config.h" |
49 | # include "config.h" |
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50 | # endif |
33 | |
51 | |
34 | # if HAVE_CLOCK_GETTIME |
52 | # if HAVE_CLOCK_GETTIME |
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53 | # ifndef EV_USE_MONOTONIC |
35 | # define EV_USE_MONOTONIC 1 |
54 | # define EV_USE_MONOTONIC 1 |
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55 | # endif |
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56 | # ifndef EV_USE_REALTIME |
36 | # define EV_USE_REALTIME 1 |
57 | # define EV_USE_REALTIME 1 |
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58 | # endif |
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59 | # else |
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60 | # ifndef EV_USE_MONOTONIC |
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61 | # define EV_USE_MONOTONIC 0 |
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62 | # endif |
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63 | # ifndef EV_USE_REALTIME |
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64 | # define EV_USE_REALTIME 0 |
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65 | # endif |
37 | # endif |
66 | # endif |
38 | |
67 | |
39 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
68 | # ifndef EV_USE_NANOSLEEP |
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69 | # if HAVE_NANOSLEEP |
40 | # define EV_USE_SELECT 1 |
70 | # define EV_USE_NANOSLEEP 1 |
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71 | # else |
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72 | # define EV_USE_NANOSLEEP 0 |
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73 | # endif |
41 | # endif |
74 | # endif |
42 | |
75 | |
43 | # if HAVE_POLL && HAVE_POLL_H |
76 | # ifndef EV_USE_SELECT |
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77 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
44 | # define EV_USE_POLL 1 |
78 | # define EV_USE_SELECT 1 |
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79 | # else |
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80 | # define EV_USE_SELECT 0 |
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81 | # endif |
45 | # endif |
82 | # endif |
46 | |
83 | |
47 | # if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
84 | # ifndef EV_USE_POLL |
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85 | # if HAVE_POLL && HAVE_POLL_H |
48 | # define EV_USE_EPOLL 1 |
86 | # define EV_USE_POLL 1 |
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87 | # else |
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88 | # define EV_USE_POLL 0 |
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89 | # endif |
49 | # endif |
90 | # endif |
50 | |
91 | |
51 | # if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
92 | # ifndef EV_USE_EPOLL |
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93 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
52 | # define EV_USE_KQUEUE 1 |
94 | # define EV_USE_EPOLL 1 |
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95 | # else |
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96 | # define EV_USE_EPOLL 0 |
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97 | # endif |
53 | # endif |
98 | # endif |
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99 | |
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100 | # ifndef EV_USE_KQUEUE |
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101 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
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102 | # define EV_USE_KQUEUE 1 |
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103 | # else |
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104 | # define EV_USE_KQUEUE 0 |
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105 | # endif |
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106 | # endif |
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107 | |
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108 | # ifndef EV_USE_PORT |
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109 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
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110 | # define EV_USE_PORT 1 |
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111 | # else |
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112 | # define EV_USE_PORT 0 |
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113 | # endif |
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114 | # endif |
54 | |
115 | |
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116 | # ifndef EV_USE_INOTIFY |
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117 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
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118 | # define EV_USE_INOTIFY 1 |
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119 | # else |
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120 | # define EV_USE_INOTIFY 0 |
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121 | # endif |
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122 | # endif |
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123 | |
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124 | # ifndef EV_USE_EVENTFD |
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125 | # if HAVE_EVENTFD |
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126 | # define EV_USE_EVENTFD 1 |
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127 | # else |
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128 | # define EV_USE_EVENTFD 0 |
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129 | # endif |
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130 | # endif |
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131 | |
55 | #endif |
132 | #endif |
56 | |
133 | |
57 | #include <math.h> |
134 | #include <math.h> |
58 | #include <stdlib.h> |
135 | #include <stdlib.h> |
59 | #include <unistd.h> |
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60 | #include <fcntl.h> |
136 | #include <fcntl.h> |
61 | #include <signal.h> |
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62 | #include <stddef.h> |
137 | #include <stddef.h> |
63 | |
138 | |
64 | #include <stdio.h> |
139 | #include <stdio.h> |
65 | |
140 | |
66 | #include <assert.h> |
141 | #include <assert.h> |
67 | #include <errno.h> |
142 | #include <errno.h> |
68 | #include <sys/types.h> |
143 | #include <sys/types.h> |
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144 | #include <time.h> |
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145 | |
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146 | #include <signal.h> |
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147 | |
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148 | #ifdef EV_H |
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149 | # include EV_H |
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150 | #else |
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151 | # include "ev.h" |
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152 | #endif |
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153 | |
69 | #ifndef WIN32 |
154 | #ifndef _WIN32 |
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155 | # include <sys/time.h> |
70 | # include <sys/wait.h> |
156 | # include <sys/wait.h> |
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157 | # include <unistd.h> |
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158 | #else |
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159 | # define WIN32_LEAN_AND_MEAN |
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160 | # include <windows.h> |
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161 | # ifndef EV_SELECT_IS_WINSOCKET |
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162 | # define EV_SELECT_IS_WINSOCKET 1 |
71 | #endif |
163 | # endif |
72 | #include <sys/time.h> |
164 | #endif |
73 | #include <time.h> |
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74 | |
165 | |
75 | /**/ |
166 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
76 | |
167 | |
77 | #ifndef EV_USE_MONOTONIC |
168 | #ifndef EV_USE_MONOTONIC |
78 | # define EV_USE_MONOTONIC 1 |
169 | # define EV_USE_MONOTONIC 0 |
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170 | #endif |
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171 | |
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172 | #ifndef EV_USE_REALTIME |
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173 | # define EV_USE_REALTIME 0 |
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174 | #endif |
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175 | |
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176 | #ifndef EV_USE_NANOSLEEP |
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177 | # define EV_USE_NANOSLEEP 0 |
79 | #endif |
178 | #endif |
80 | |
179 | |
81 | #ifndef EV_USE_SELECT |
180 | #ifndef EV_USE_SELECT |
82 | # define EV_USE_SELECT 1 |
181 | # define EV_USE_SELECT 1 |
83 | #endif |
182 | #endif |
84 | |
183 | |
85 | #ifndef EV_USE_POLL |
184 | #ifndef EV_USE_POLL |
86 | # define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */ |
185 | # ifdef _WIN32 |
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186 | # define EV_USE_POLL 0 |
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187 | # else |
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188 | # define EV_USE_POLL 1 |
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189 | # endif |
87 | #endif |
190 | #endif |
88 | |
191 | |
89 | #ifndef EV_USE_EPOLL |
192 | #ifndef EV_USE_EPOLL |
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193 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
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194 | # define EV_USE_EPOLL 1 |
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195 | # else |
90 | # define EV_USE_EPOLL 0 |
196 | # define EV_USE_EPOLL 0 |
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197 | # endif |
91 | #endif |
198 | #endif |
92 | |
199 | |
93 | #ifndef EV_USE_KQUEUE |
200 | #ifndef EV_USE_KQUEUE |
94 | # define EV_USE_KQUEUE 0 |
201 | # define EV_USE_KQUEUE 0 |
95 | #endif |
202 | #endif |
96 | |
203 | |
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204 | #ifndef EV_USE_PORT |
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205 | # define EV_USE_PORT 0 |
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206 | #endif |
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207 | |
97 | #ifndef EV_USE_WIN32 |
208 | #ifndef EV_USE_INOTIFY |
98 | # ifdef WIN32 |
209 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
99 | # define EV_USE_WIN32 1 |
210 | # define EV_USE_INOTIFY 1 |
100 | # else |
211 | # else |
101 | # define EV_USE_WIN32 0 |
212 | # define EV_USE_INOTIFY 0 |
102 | # endif |
213 | # endif |
103 | #endif |
214 | #endif |
104 | |
215 | |
105 | #ifndef EV_USE_REALTIME |
216 | #ifndef EV_PID_HASHSIZE |
106 | # define EV_USE_REALTIME 1 |
217 | # if EV_MINIMAL |
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218 | # define EV_PID_HASHSIZE 1 |
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219 | # else |
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220 | # define EV_PID_HASHSIZE 16 |
107 | #endif |
221 | # endif |
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222 | #endif |
108 | |
223 | |
109 | /**/ |
224 | #ifndef EV_INOTIFY_HASHSIZE |
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225 | # if EV_MINIMAL |
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226 | # define EV_INOTIFY_HASHSIZE 1 |
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227 | # else |
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228 | # define EV_INOTIFY_HASHSIZE 16 |
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229 | # endif |
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230 | #endif |
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231 | |
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232 | #ifndef EV_USE_EVENTFD |
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233 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
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234 | # define EV_USE_EVENTFD 1 |
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235 | # else |
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236 | # define EV_USE_EVENTFD 0 |
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237 | # endif |
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238 | #endif |
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239 | |
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240 | #if 0 /* debugging */ |
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241 | # define EV_VERIFY 3 |
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242 | # define EV_USE_4HEAP 1 |
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243 | # define EV_HEAP_CACHE_AT 1 |
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244 | #endif |
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245 | |
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246 | #ifndef EV_VERIFY |
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247 | # define EV_VERIFY !EV_MINIMAL |
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248 | #endif |
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249 | |
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250 | #ifndef EV_USE_4HEAP |
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251 | # define EV_USE_4HEAP !EV_MINIMAL |
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252 | #endif |
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253 | |
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254 | #ifndef EV_HEAP_CACHE_AT |
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255 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
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256 | #endif |
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257 | |
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258 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
110 | |
259 | |
111 | #ifndef CLOCK_MONOTONIC |
260 | #ifndef CLOCK_MONOTONIC |
112 | # undef EV_USE_MONOTONIC |
261 | # undef EV_USE_MONOTONIC |
113 | # define EV_USE_MONOTONIC 0 |
262 | # define EV_USE_MONOTONIC 0 |
114 | #endif |
263 | #endif |
… | |
… | |
116 | #ifndef CLOCK_REALTIME |
265 | #ifndef CLOCK_REALTIME |
117 | # undef EV_USE_REALTIME |
266 | # undef EV_USE_REALTIME |
118 | # define EV_USE_REALTIME 0 |
267 | # define EV_USE_REALTIME 0 |
119 | #endif |
268 | #endif |
120 | |
269 | |
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270 | #if !EV_STAT_ENABLE |
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271 | # undef EV_USE_INOTIFY |
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272 | # define EV_USE_INOTIFY 0 |
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273 | #endif |
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274 | |
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275 | #if !EV_USE_NANOSLEEP |
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276 | # ifndef _WIN32 |
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277 | # include <sys/select.h> |
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278 | # endif |
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279 | #endif |
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280 | |
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281 | #if EV_USE_INOTIFY |
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282 | # include <sys/inotify.h> |
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283 | #endif |
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284 | |
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285 | #if EV_SELECT_IS_WINSOCKET |
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286 | # include <winsock.h> |
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287 | #endif |
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288 | |
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289 | #if EV_USE_EVENTFD |
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290 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
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291 | # include <stdint.h> |
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292 | # ifdef __cplusplus |
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293 | extern "C" { |
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294 | # endif |
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295 | int eventfd (unsigned int initval, int flags); |
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296 | # ifdef __cplusplus |
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297 | } |
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298 | # endif |
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299 | #endif |
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300 | |
121 | /**/ |
301 | /**/ |
122 | |
302 | |
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303 | #if EV_VERIFY >= 3 |
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304 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
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305 | #else |
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306 | # define EV_FREQUENT_CHECK do { } while (0) |
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307 | #endif |
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308 | |
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309 | /* |
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310 | * This is used to avoid floating point rounding problems. |
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311 | * It is added to ev_rt_now when scheduling periodics |
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312 | * to ensure progress, time-wise, even when rounding |
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313 | * errors are against us. |
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314 | * This value is good at least till the year 4000. |
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315 | * Better solutions welcome. |
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316 | */ |
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317 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
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318 | |
123 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
319 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
124 | #define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */ |
320 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
125 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
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126 | /*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ |
321 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
127 | |
322 | |
128 | #include "ev.h" |
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129 | |
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130 | #if __GNUC__ >= 3 |
323 | #if __GNUC__ >= 4 |
131 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
324 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
132 | # define inline inline |
325 | # define noinline __attribute__ ((noinline)) |
133 | #else |
326 | #else |
134 | # define expect(expr,value) (expr) |
327 | # define expect(expr,value) (expr) |
135 | # define inline static |
328 | # define noinline |
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329 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
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330 | # define inline |
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331 | # endif |
136 | #endif |
332 | #endif |
137 | |
333 | |
138 | #define expect_false(expr) expect ((expr) != 0, 0) |
334 | #define expect_false(expr) expect ((expr) != 0, 0) |
139 | #define expect_true(expr) expect ((expr) != 0, 1) |
335 | #define expect_true(expr) expect ((expr) != 0, 1) |
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336 | #define inline_size static inline |
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337 | |
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338 | #if EV_MINIMAL |
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339 | # define inline_speed static noinline |
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340 | #else |
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341 | # define inline_speed static inline |
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342 | #endif |
140 | |
343 | |
141 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
344 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
142 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
345 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
143 | |
346 | |
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347 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
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348 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
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349 | |
144 | typedef struct ev_watcher *W; |
350 | typedef ev_watcher *W; |
145 | typedef struct ev_watcher_list *WL; |
351 | typedef ev_watcher_list *WL; |
146 | typedef struct ev_watcher_time *WT; |
352 | typedef ev_watcher_time *WT; |
147 | |
353 | |
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354 | #define ev_active(w) ((W)(w))->active |
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355 | #define ev_at(w) ((WT)(w))->at |
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356 | |
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357 | #if EV_USE_MONOTONIC |
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358 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
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359 | /* giving it a reasonably high chance of working on typical architetcures */ |
148 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
360 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
149 | |
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150 | #if WIN32 |
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151 | /* note: the comment below could not be substantiated, but what would I care */ |
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152 | /* MSDN says this is required to handle SIGFPE */ |
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153 | volatile double SIGFPE_REQ = 0.0f; |
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154 | #endif |
361 | #endif |
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362 | |
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363 | #ifdef _WIN32 |
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364 | # include "ev_win32.c" |
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365 | #endif |
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366 | |
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367 | /*****************************************************************************/ |
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368 | |
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369 | static void (*syserr_cb)(const char *msg); |
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370 | |
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371 | void |
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372 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
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373 | { |
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374 | syserr_cb = cb; |
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375 | } |
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376 | |
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377 | static void noinline |
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378 | syserr (const char *msg) |
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379 | { |
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380 | if (!msg) |
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381 | msg = "(libev) system error"; |
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382 | |
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383 | if (syserr_cb) |
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384 | syserr_cb (msg); |
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385 | else |
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386 | { |
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387 | perror (msg); |
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388 | abort (); |
|
|
389 | } |
|
|
390 | } |
|
|
391 | |
|
|
392 | static void * |
|
|
393 | ev_realloc_emul (void *ptr, long size) |
|
|
394 | { |
|
|
395 | /* some systems, notably openbsd and darwin, fail to properly |
|
|
396 | * implement realloc (x, 0) (as required by both ansi c-98 and |
|
|
397 | * the single unix specification, so work around them here. |
|
|
398 | */ |
|
|
399 | |
|
|
400 | if (size) |
|
|
401 | return realloc (ptr, size); |
|
|
402 | |
|
|
403 | free (ptr); |
|
|
404 | return 0; |
|
|
405 | } |
|
|
406 | |
|
|
407 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
|
|
408 | |
|
|
409 | void |
|
|
410 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
|
|
411 | { |
|
|
412 | alloc = cb; |
|
|
413 | } |
|
|
414 | |
|
|
415 | inline_speed void * |
|
|
416 | ev_realloc (void *ptr, long size) |
|
|
417 | { |
|
|
418 | ptr = alloc (ptr, size); |
|
|
419 | |
|
|
420 | if (!ptr && size) |
|
|
421 | { |
|
|
422 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
423 | abort (); |
|
|
424 | } |
|
|
425 | |
|
|
426 | return ptr; |
|
|
427 | } |
|
|
428 | |
|
|
429 | #define ev_malloc(size) ev_realloc (0, (size)) |
|
|
430 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
155 | |
431 | |
156 | /*****************************************************************************/ |
432 | /*****************************************************************************/ |
157 | |
433 | |
158 | typedef struct |
434 | typedef struct |
159 | { |
435 | { |
160 | WL head; |
436 | WL head; |
161 | unsigned char events; |
437 | unsigned char events; |
162 | unsigned char reify; |
438 | unsigned char reify; |
|
|
439 | #if EV_SELECT_IS_WINSOCKET |
|
|
440 | SOCKET handle; |
|
|
441 | #endif |
163 | } ANFD; |
442 | } ANFD; |
164 | |
443 | |
165 | typedef struct |
444 | typedef struct |
166 | { |
445 | { |
167 | W w; |
446 | W w; |
168 | int events; |
447 | int events; |
169 | } ANPENDING; |
448 | } ANPENDING; |
170 | |
449 | |
|
|
450 | #if EV_USE_INOTIFY |
|
|
451 | /* hash table entry per inotify-id */ |
|
|
452 | typedef struct |
|
|
453 | { |
|
|
454 | WL head; |
|
|
455 | } ANFS; |
|
|
456 | #endif |
|
|
457 | |
|
|
458 | /* Heap Entry */ |
|
|
459 | #if EV_HEAP_CACHE_AT |
|
|
460 | typedef struct { |
|
|
461 | ev_tstamp at; |
|
|
462 | WT w; |
|
|
463 | } ANHE; |
|
|
464 | |
|
|
465 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
|
|
466 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
|
467 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
468 | #else |
|
|
469 | typedef WT ANHE; |
|
|
470 | |
|
|
471 | #define ANHE_w(he) (he) |
|
|
472 | #define ANHE_at(he) (he)->at |
|
|
473 | #define ANHE_at_cache(he) |
|
|
474 | #endif |
|
|
475 | |
171 | #if EV_MULTIPLICITY |
476 | #if EV_MULTIPLICITY |
172 | |
477 | |
173 | struct ev_loop |
478 | struct ev_loop |
174 | { |
479 | { |
|
|
480 | ev_tstamp ev_rt_now; |
|
|
481 | #define ev_rt_now ((loop)->ev_rt_now) |
175 | # define VAR(name,decl) decl; |
482 | #define VAR(name,decl) decl; |
176 | # include "ev_vars.h" |
483 | #include "ev_vars.h" |
177 | }; |
|
|
178 | # undef VAR |
484 | #undef VAR |
|
|
485 | }; |
179 | # include "ev_wrap.h" |
486 | #include "ev_wrap.h" |
|
|
487 | |
|
|
488 | static struct ev_loop default_loop_struct; |
|
|
489 | struct ev_loop *ev_default_loop_ptr; |
180 | |
490 | |
181 | #else |
491 | #else |
182 | |
492 | |
|
|
493 | ev_tstamp ev_rt_now; |
183 | # define VAR(name,decl) static decl; |
494 | #define VAR(name,decl) static decl; |
184 | # include "ev_vars.h" |
495 | #include "ev_vars.h" |
185 | # undef VAR |
496 | #undef VAR |
|
|
497 | |
|
|
498 | static int ev_default_loop_ptr; |
186 | |
499 | |
187 | #endif |
500 | #endif |
188 | |
501 | |
189 | /*****************************************************************************/ |
502 | /*****************************************************************************/ |
190 | |
503 | |
191 | inline ev_tstamp |
504 | ev_tstamp |
192 | ev_time (void) |
505 | ev_time (void) |
193 | { |
506 | { |
194 | #if EV_USE_REALTIME |
507 | #if EV_USE_REALTIME |
195 | struct timespec ts; |
508 | struct timespec ts; |
196 | clock_gettime (CLOCK_REALTIME, &ts); |
509 | clock_gettime (CLOCK_REALTIME, &ts); |
… | |
… | |
200 | gettimeofday (&tv, 0); |
513 | gettimeofday (&tv, 0); |
201 | return tv.tv_sec + tv.tv_usec * 1e-6; |
514 | return tv.tv_sec + tv.tv_usec * 1e-6; |
202 | #endif |
515 | #endif |
203 | } |
516 | } |
204 | |
517 | |
205 | inline ev_tstamp |
518 | ev_tstamp inline_size |
206 | get_clock (void) |
519 | get_clock (void) |
207 | { |
520 | { |
208 | #if EV_USE_MONOTONIC |
521 | #if EV_USE_MONOTONIC |
209 | if (expect_true (have_monotonic)) |
522 | if (expect_true (have_monotonic)) |
210 | { |
523 | { |
… | |
… | |
215 | #endif |
528 | #endif |
216 | |
529 | |
217 | return ev_time (); |
530 | return ev_time (); |
218 | } |
531 | } |
219 | |
532 | |
|
|
533 | #if EV_MULTIPLICITY |
220 | ev_tstamp |
534 | ev_tstamp |
221 | ev_now (EV_P) |
535 | ev_now (EV_P) |
222 | { |
536 | { |
223 | return rt_now; |
537 | return ev_rt_now; |
224 | } |
538 | } |
|
|
539 | #endif |
225 | |
540 | |
226 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
541 | void |
|
|
542 | ev_sleep (ev_tstamp delay) |
|
|
543 | { |
|
|
544 | if (delay > 0.) |
|
|
545 | { |
|
|
546 | #if EV_USE_NANOSLEEP |
|
|
547 | struct timespec ts; |
227 | |
548 | |
|
|
549 | ts.tv_sec = (time_t)delay; |
|
|
550 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
551 | |
|
|
552 | nanosleep (&ts, 0); |
|
|
553 | #elif defined(_WIN32) |
|
|
554 | Sleep ((unsigned long)(delay * 1e3)); |
|
|
555 | #else |
|
|
556 | struct timeval tv; |
|
|
557 | |
|
|
558 | tv.tv_sec = (time_t)delay; |
|
|
559 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
560 | |
|
|
561 | select (0, 0, 0, 0, &tv); |
|
|
562 | #endif |
|
|
563 | } |
|
|
564 | } |
|
|
565 | |
|
|
566 | /*****************************************************************************/ |
|
|
567 | |
|
|
568 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
|
|
569 | |
|
|
570 | int inline_size |
|
|
571 | array_nextsize (int elem, int cur, int cnt) |
|
|
572 | { |
|
|
573 | int ncur = cur + 1; |
|
|
574 | |
|
|
575 | do |
|
|
576 | ncur <<= 1; |
|
|
577 | while (cnt > ncur); |
|
|
578 | |
|
|
579 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
|
|
580 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
|
|
581 | { |
|
|
582 | ncur *= elem; |
|
|
583 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
|
|
584 | ncur = ncur - sizeof (void *) * 4; |
|
|
585 | ncur /= elem; |
|
|
586 | } |
|
|
587 | |
|
|
588 | return ncur; |
|
|
589 | } |
|
|
590 | |
|
|
591 | static noinline void * |
|
|
592 | array_realloc (int elem, void *base, int *cur, int cnt) |
|
|
593 | { |
|
|
594 | *cur = array_nextsize (elem, *cur, cnt); |
|
|
595 | return ev_realloc (base, elem * *cur); |
|
|
596 | } |
|
|
597 | |
228 | #define array_needsize(base,cur,cnt,init) \ |
598 | #define array_needsize(type,base,cur,cnt,init) \ |
229 | if (expect_false ((cnt) > cur)) \ |
599 | if (expect_false ((cnt) > (cur))) \ |
230 | { \ |
600 | { \ |
231 | int newcnt = cur; \ |
601 | int ocur_ = (cur); \ |
232 | do \ |
602 | (base) = (type *)array_realloc \ |
233 | { \ |
603 | (sizeof (type), (base), &(cur), (cnt)); \ |
234 | newcnt = array_roundsize (base, newcnt << 1); \ |
604 | init ((base) + (ocur_), (cur) - ocur_); \ |
235 | } \ |
|
|
236 | while ((cnt) > newcnt); \ |
|
|
237 | \ |
|
|
238 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
|
|
239 | init (base + cur, newcnt - cur); \ |
|
|
240 | cur = newcnt; \ |
|
|
241 | } |
605 | } |
242 | |
606 | |
|
|
607 | #if 0 |
243 | #define array_slim(stem) \ |
608 | #define array_slim(type,stem) \ |
244 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
609 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
245 | { \ |
610 | { \ |
246 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
611 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
247 | base = realloc (base, sizeof (*base) * (stem ## max)); \ |
612 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
248 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
613 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
249 | } |
614 | } |
|
|
615 | #endif |
250 | |
616 | |
251 | #define array_free(stem, idx) \ |
617 | #define array_free(stem, idx) \ |
252 | free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
618 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
253 | |
619 | |
254 | /*****************************************************************************/ |
620 | /*****************************************************************************/ |
255 | |
621 | |
256 | static void |
622 | void noinline |
|
|
623 | ev_feed_event (EV_P_ void *w, int revents) |
|
|
624 | { |
|
|
625 | W w_ = (W)w; |
|
|
626 | int pri = ABSPRI (w_); |
|
|
627 | |
|
|
628 | if (expect_false (w_->pending)) |
|
|
629 | pendings [pri][w_->pending - 1].events |= revents; |
|
|
630 | else |
|
|
631 | { |
|
|
632 | w_->pending = ++pendingcnt [pri]; |
|
|
633 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
|
|
634 | pendings [pri][w_->pending - 1].w = w_; |
|
|
635 | pendings [pri][w_->pending - 1].events = revents; |
|
|
636 | } |
|
|
637 | } |
|
|
638 | |
|
|
639 | void inline_speed |
|
|
640 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
641 | { |
|
|
642 | int i; |
|
|
643 | |
|
|
644 | for (i = 0; i < eventcnt; ++i) |
|
|
645 | ev_feed_event (EV_A_ events [i], type); |
|
|
646 | } |
|
|
647 | |
|
|
648 | /*****************************************************************************/ |
|
|
649 | |
|
|
650 | void inline_size |
257 | anfds_init (ANFD *base, int count) |
651 | anfds_init (ANFD *base, int count) |
258 | { |
652 | { |
259 | while (count--) |
653 | while (count--) |
260 | { |
654 | { |
261 | base->head = 0; |
655 | base->head = 0; |
… | |
… | |
264 | |
658 | |
265 | ++base; |
659 | ++base; |
266 | } |
660 | } |
267 | } |
661 | } |
268 | |
662 | |
269 | static void |
663 | void inline_speed |
270 | event (EV_P_ W w, int events) |
|
|
271 | { |
|
|
272 | if (w->pending) |
|
|
273 | { |
|
|
274 | pendings [ABSPRI (w)][w->pending - 1].events |= events; |
|
|
275 | return; |
|
|
276 | } |
|
|
277 | |
|
|
278 | w->pending = ++pendingcnt [ABSPRI (w)]; |
|
|
279 | array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], ); |
|
|
280 | pendings [ABSPRI (w)][w->pending - 1].w = w; |
|
|
281 | pendings [ABSPRI (w)][w->pending - 1].events = events; |
|
|
282 | } |
|
|
283 | |
|
|
284 | static void |
|
|
285 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
286 | { |
|
|
287 | int i; |
|
|
288 | |
|
|
289 | for (i = 0; i < eventcnt; ++i) |
|
|
290 | event (EV_A_ events [i], type); |
|
|
291 | } |
|
|
292 | |
|
|
293 | static void |
|
|
294 | fd_event (EV_P_ int fd, int events) |
664 | fd_event (EV_P_ int fd, int revents) |
295 | { |
665 | { |
296 | ANFD *anfd = anfds + fd; |
666 | ANFD *anfd = anfds + fd; |
297 | struct ev_io *w; |
667 | ev_io *w; |
298 | |
668 | |
299 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
669 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
300 | { |
670 | { |
301 | int ev = w->events & events; |
671 | int ev = w->events & revents; |
302 | |
672 | |
303 | if (ev) |
673 | if (ev) |
304 | event (EV_A_ (W)w, ev); |
674 | ev_feed_event (EV_A_ (W)w, ev); |
305 | } |
675 | } |
306 | } |
676 | } |
307 | |
677 | |
308 | /*****************************************************************************/ |
678 | void |
|
|
679 | ev_feed_fd_event (EV_P_ int fd, int revents) |
|
|
680 | { |
|
|
681 | if (fd >= 0 && fd < anfdmax) |
|
|
682 | fd_event (EV_A_ fd, revents); |
|
|
683 | } |
309 | |
684 | |
310 | static void |
685 | void inline_size |
311 | fd_reify (EV_P) |
686 | fd_reify (EV_P) |
312 | { |
687 | { |
313 | int i; |
688 | int i; |
314 | |
689 | |
315 | for (i = 0; i < fdchangecnt; ++i) |
690 | for (i = 0; i < fdchangecnt; ++i) |
316 | { |
691 | { |
317 | int fd = fdchanges [i]; |
692 | int fd = fdchanges [i]; |
318 | ANFD *anfd = anfds + fd; |
693 | ANFD *anfd = anfds + fd; |
319 | struct ev_io *w; |
694 | ev_io *w; |
320 | |
695 | |
321 | int events = 0; |
696 | unsigned char events = 0; |
322 | |
697 | |
323 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
698 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
324 | events |= w->events; |
699 | events |= (unsigned char)w->events; |
325 | |
700 | |
|
|
701 | #if EV_SELECT_IS_WINSOCKET |
|
|
702 | if (events) |
|
|
703 | { |
|
|
704 | unsigned long argp; |
|
|
705 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
706 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
707 | #else |
|
|
708 | anfd->handle = _get_osfhandle (fd); |
|
|
709 | #endif |
|
|
710 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
|
|
711 | } |
|
|
712 | #endif |
|
|
713 | |
|
|
714 | { |
|
|
715 | unsigned char o_events = anfd->events; |
|
|
716 | unsigned char o_reify = anfd->reify; |
|
|
717 | |
326 | anfd->reify = 0; |
718 | anfd->reify = 0; |
327 | |
|
|
328 | method_modify (EV_A_ fd, anfd->events, events); |
|
|
329 | anfd->events = events; |
719 | anfd->events = events; |
|
|
720 | |
|
|
721 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
722 | backend_modify (EV_A_ fd, o_events, events); |
|
|
723 | } |
330 | } |
724 | } |
331 | |
725 | |
332 | fdchangecnt = 0; |
726 | fdchangecnt = 0; |
333 | } |
727 | } |
334 | |
728 | |
335 | static void |
729 | void inline_size |
336 | fd_change (EV_P_ int fd) |
730 | fd_change (EV_P_ int fd, int flags) |
337 | { |
731 | { |
338 | if (anfds [fd].reify || fdchangecnt < 0) |
732 | unsigned char reify = anfds [fd].reify; |
339 | return; |
|
|
340 | |
|
|
341 | anfds [fd].reify = 1; |
733 | anfds [fd].reify |= flags; |
342 | |
734 | |
|
|
735 | if (expect_true (!reify)) |
|
|
736 | { |
343 | ++fdchangecnt; |
737 | ++fdchangecnt; |
344 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
738 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
345 | fdchanges [fdchangecnt - 1] = fd; |
739 | fdchanges [fdchangecnt - 1] = fd; |
|
|
740 | } |
346 | } |
741 | } |
347 | |
742 | |
348 | static void |
743 | void inline_speed |
349 | fd_kill (EV_P_ int fd) |
744 | fd_kill (EV_P_ int fd) |
350 | { |
745 | { |
351 | struct ev_io *w; |
746 | ev_io *w; |
352 | |
747 | |
353 | while ((w = (struct ev_io *)anfds [fd].head)) |
748 | while ((w = (ev_io *)anfds [fd].head)) |
354 | { |
749 | { |
355 | ev_io_stop (EV_A_ w); |
750 | ev_io_stop (EV_A_ w); |
356 | event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
751 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
357 | } |
752 | } |
|
|
753 | } |
|
|
754 | |
|
|
755 | int inline_size |
|
|
756 | fd_valid (int fd) |
|
|
757 | { |
|
|
758 | #ifdef _WIN32 |
|
|
759 | return _get_osfhandle (fd) != -1; |
|
|
760 | #else |
|
|
761 | return fcntl (fd, F_GETFD) != -1; |
|
|
762 | #endif |
358 | } |
763 | } |
359 | |
764 | |
360 | /* called on EBADF to verify fds */ |
765 | /* called on EBADF to verify fds */ |
361 | static void |
766 | static void noinline |
362 | fd_ebadf (EV_P) |
767 | fd_ebadf (EV_P) |
363 | { |
768 | { |
364 | int fd; |
769 | int fd; |
365 | |
770 | |
366 | for (fd = 0; fd < anfdmax; ++fd) |
771 | for (fd = 0; fd < anfdmax; ++fd) |
367 | if (anfds [fd].events) |
772 | if (anfds [fd].events) |
368 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
773 | if (!fd_valid (fd) == -1 && errno == EBADF) |
369 | fd_kill (EV_A_ fd); |
774 | fd_kill (EV_A_ fd); |
370 | } |
775 | } |
371 | |
776 | |
372 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
777 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
373 | static void |
778 | static void noinline |
374 | fd_enomem (EV_P) |
779 | fd_enomem (EV_P) |
375 | { |
780 | { |
376 | int fd; |
781 | int fd; |
377 | |
782 | |
378 | for (fd = anfdmax; fd--; ) |
783 | for (fd = anfdmax; fd--; ) |
… | |
… | |
381 | fd_kill (EV_A_ fd); |
786 | fd_kill (EV_A_ fd); |
382 | return; |
787 | return; |
383 | } |
788 | } |
384 | } |
789 | } |
385 | |
790 | |
386 | /* susually called after fork if method needs to re-arm all fds from scratch */ |
791 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
387 | static void |
792 | static void noinline |
388 | fd_rearm_all (EV_P) |
793 | fd_rearm_all (EV_P) |
389 | { |
794 | { |
390 | int fd; |
795 | int fd; |
391 | |
796 | |
392 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
393 | for (fd = 0; fd < anfdmax; ++fd) |
797 | for (fd = 0; fd < anfdmax; ++fd) |
394 | if (anfds [fd].events) |
798 | if (anfds [fd].events) |
395 | { |
799 | { |
396 | anfds [fd].events = 0; |
800 | anfds [fd].events = 0; |
397 | fd_change (EV_A_ fd); |
801 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
398 | } |
802 | } |
399 | } |
803 | } |
400 | |
804 | |
401 | /*****************************************************************************/ |
805 | /*****************************************************************************/ |
402 | |
806 | |
|
|
807 | /* |
|
|
808 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
|
|
809 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
|
|
810 | * the branching factor of the d-tree. |
|
|
811 | */ |
|
|
812 | |
|
|
813 | /* |
|
|
814 | * at the moment we allow libev the luxury of two heaps, |
|
|
815 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
816 | * which is more cache-efficient. |
|
|
817 | * the difference is about 5% with 50000+ watchers. |
|
|
818 | */ |
|
|
819 | #if EV_USE_4HEAP |
|
|
820 | |
|
|
821 | #define DHEAP 4 |
|
|
822 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
823 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
824 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
|
|
825 | |
|
|
826 | /* away from the root */ |
|
|
827 | void inline_speed |
|
|
828 | downheap (ANHE *heap, int N, int k) |
|
|
829 | { |
|
|
830 | ANHE he = heap [k]; |
|
|
831 | ANHE *E = heap + N + HEAP0; |
|
|
832 | |
|
|
833 | for (;;) |
|
|
834 | { |
|
|
835 | ev_tstamp minat; |
|
|
836 | ANHE *minpos; |
|
|
837 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
|
|
838 | |
|
|
839 | /* find minimum child */ |
|
|
840 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
841 | { |
|
|
842 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
843 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
844 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
845 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
846 | } |
|
|
847 | else if (pos < E) |
|
|
848 | { |
|
|
849 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
850 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
851 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
852 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
853 | } |
|
|
854 | else |
|
|
855 | break; |
|
|
856 | |
|
|
857 | if (ANHE_at (he) <= minat) |
|
|
858 | break; |
|
|
859 | |
|
|
860 | heap [k] = *minpos; |
|
|
861 | ev_active (ANHE_w (*minpos)) = k; |
|
|
862 | |
|
|
863 | k = minpos - heap; |
|
|
864 | } |
|
|
865 | |
|
|
866 | heap [k] = he; |
|
|
867 | ev_active (ANHE_w (he)) = k; |
|
|
868 | } |
|
|
869 | |
|
|
870 | #else /* 4HEAP */ |
|
|
871 | |
|
|
872 | #define HEAP0 1 |
|
|
873 | #define HPARENT(k) ((k) >> 1) |
|
|
874 | #define UPHEAP_DONE(p,k) (!(p)) |
|
|
875 | |
|
|
876 | /* away from the root */ |
|
|
877 | void inline_speed |
|
|
878 | downheap (ANHE *heap, int N, int k) |
|
|
879 | { |
|
|
880 | ANHE he = heap [k]; |
|
|
881 | |
|
|
882 | for (;;) |
|
|
883 | { |
|
|
884 | int c = k << 1; |
|
|
885 | |
|
|
886 | if (c > N + HEAP0 - 1) |
|
|
887 | break; |
|
|
888 | |
|
|
889 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
890 | ? 1 : 0; |
|
|
891 | |
|
|
892 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
893 | break; |
|
|
894 | |
|
|
895 | heap [k] = heap [c]; |
|
|
896 | ev_active (ANHE_w (heap [k])) = k; |
|
|
897 | |
|
|
898 | k = c; |
|
|
899 | } |
|
|
900 | |
|
|
901 | heap [k] = he; |
|
|
902 | ev_active (ANHE_w (he)) = k; |
|
|
903 | } |
|
|
904 | #endif |
|
|
905 | |
|
|
906 | /* towards the root */ |
|
|
907 | void inline_speed |
|
|
908 | upheap (ANHE *heap, int k) |
|
|
909 | { |
|
|
910 | ANHE he = heap [k]; |
|
|
911 | |
|
|
912 | for (;;) |
|
|
913 | { |
|
|
914 | int p = HPARENT (k); |
|
|
915 | |
|
|
916 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
917 | break; |
|
|
918 | |
|
|
919 | heap [k] = heap [p]; |
|
|
920 | ev_active (ANHE_w (heap [k])) = k; |
|
|
921 | k = p; |
|
|
922 | } |
|
|
923 | |
|
|
924 | heap [k] = he; |
|
|
925 | ev_active (ANHE_w (he)) = k; |
|
|
926 | } |
|
|
927 | |
|
|
928 | void inline_size |
|
|
929 | adjustheap (ANHE *heap, int N, int k) |
|
|
930 | { |
|
|
931 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
|
|
932 | upheap (heap, k); |
|
|
933 | else |
|
|
934 | downheap (heap, N, k); |
|
|
935 | } |
|
|
936 | |
|
|
937 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
938 | void inline_size |
|
|
939 | reheap (ANHE *heap, int N) |
|
|
940 | { |
|
|
941 | int i; |
|
|
942 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
943 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
944 | for (i = 0; i < N; ++i) |
|
|
945 | upheap (heap, i + HEAP0); |
|
|
946 | } |
|
|
947 | |
|
|
948 | #if EV_VERIFY |
403 | static void |
949 | static void |
404 | upheap (WT *heap, int k) |
950 | checkheap (ANHE *heap, int N) |
405 | { |
951 | { |
406 | WT w = heap [k]; |
952 | int i; |
407 | |
953 | |
408 | while (k && heap [k >> 1]->at > w->at) |
954 | for (i = HEAP0; i < N + HEAP0; ++i) |
409 | { |
|
|
410 | heap [k] = heap [k >> 1]; |
|
|
411 | ((W)heap [k])->active = k + 1; |
|
|
412 | k >>= 1; |
|
|
413 | } |
955 | { |
414 | |
956 | assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
415 | heap [k] = w; |
957 | assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
416 | ((W)heap [k])->active = k + 1; |
958 | assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
417 | |
|
|
418 | } |
|
|
419 | |
|
|
420 | static void |
|
|
421 | downheap (WT *heap, int N, int k) |
|
|
422 | { |
|
|
423 | WT w = heap [k]; |
|
|
424 | |
|
|
425 | while (k < (N >> 1)) |
|
|
426 | { |
959 | } |
427 | int j = k << 1; |
|
|
428 | |
|
|
429 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
|
|
430 | ++j; |
|
|
431 | |
|
|
432 | if (w->at <= heap [j]->at) |
|
|
433 | break; |
|
|
434 | |
|
|
435 | heap [k] = heap [j]; |
|
|
436 | ((W)heap [k])->active = k + 1; |
|
|
437 | k = j; |
|
|
438 | } |
|
|
439 | |
|
|
440 | heap [k] = w; |
|
|
441 | ((W)heap [k])->active = k + 1; |
|
|
442 | } |
960 | } |
|
|
961 | #endif |
443 | |
962 | |
444 | /*****************************************************************************/ |
963 | /*****************************************************************************/ |
445 | |
964 | |
446 | typedef struct |
965 | typedef struct |
447 | { |
966 | { |
448 | WL head; |
967 | WL head; |
449 | sig_atomic_t volatile gotsig; |
968 | EV_ATOMIC_T gotsig; |
450 | } ANSIG; |
969 | } ANSIG; |
451 | |
970 | |
452 | static ANSIG *signals; |
971 | static ANSIG *signals; |
453 | static int signalmax; |
972 | static int signalmax; |
454 | |
973 | |
455 | static int sigpipe [2]; |
974 | static EV_ATOMIC_T gotsig; |
456 | static sig_atomic_t volatile gotsig; |
|
|
457 | static struct ev_io sigev; |
|
|
458 | |
975 | |
459 | static void |
976 | void inline_size |
460 | signals_init (ANSIG *base, int count) |
977 | signals_init (ANSIG *base, int count) |
461 | { |
978 | { |
462 | while (count--) |
979 | while (count--) |
463 | { |
980 | { |
464 | base->head = 0; |
981 | base->head = 0; |
… | |
… | |
466 | |
983 | |
467 | ++base; |
984 | ++base; |
468 | } |
985 | } |
469 | } |
986 | } |
470 | |
987 | |
|
|
988 | /*****************************************************************************/ |
|
|
989 | |
|
|
990 | void inline_speed |
|
|
991 | fd_intern (int fd) |
|
|
992 | { |
|
|
993 | #ifdef _WIN32 |
|
|
994 | int arg = 1; |
|
|
995 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
996 | #else |
|
|
997 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
998 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
999 | #endif |
|
|
1000 | } |
|
|
1001 | |
|
|
1002 | static void noinline |
|
|
1003 | evpipe_init (EV_P) |
|
|
1004 | { |
|
|
1005 | if (!ev_is_active (&pipeev)) |
|
|
1006 | { |
|
|
1007 | #if EV_USE_EVENTFD |
|
|
1008 | if ((evfd = eventfd (0, 0)) >= 0) |
|
|
1009 | { |
|
|
1010 | evpipe [0] = -1; |
|
|
1011 | fd_intern (evfd); |
|
|
1012 | ev_io_set (&pipeev, evfd, EV_READ); |
|
|
1013 | } |
|
|
1014 | else |
|
|
1015 | #endif |
|
|
1016 | { |
|
|
1017 | while (pipe (evpipe)) |
|
|
1018 | syserr ("(libev) error creating signal/async pipe"); |
|
|
1019 | |
|
|
1020 | fd_intern (evpipe [0]); |
|
|
1021 | fd_intern (evpipe [1]); |
|
|
1022 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
|
|
1023 | } |
|
|
1024 | |
|
|
1025 | ev_io_start (EV_A_ &pipeev); |
|
|
1026 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1027 | } |
|
|
1028 | } |
|
|
1029 | |
|
|
1030 | void inline_size |
|
|
1031 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1032 | { |
|
|
1033 | if (!*flag) |
|
|
1034 | { |
|
|
1035 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1036 | |
|
|
1037 | *flag = 1; |
|
|
1038 | |
|
|
1039 | #if EV_USE_EVENTFD |
|
|
1040 | if (evfd >= 0) |
|
|
1041 | { |
|
|
1042 | uint64_t counter = 1; |
|
|
1043 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1044 | } |
|
|
1045 | else |
|
|
1046 | #endif |
|
|
1047 | write (evpipe [1], &old_errno, 1); |
|
|
1048 | |
|
|
1049 | errno = old_errno; |
|
|
1050 | } |
|
|
1051 | } |
|
|
1052 | |
471 | static void |
1053 | static void |
|
|
1054 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
1055 | { |
|
|
1056 | #if EV_USE_EVENTFD |
|
|
1057 | if (evfd >= 0) |
|
|
1058 | { |
|
|
1059 | uint64_t counter; |
|
|
1060 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1061 | } |
|
|
1062 | else |
|
|
1063 | #endif |
|
|
1064 | { |
|
|
1065 | char dummy; |
|
|
1066 | read (evpipe [0], &dummy, 1); |
|
|
1067 | } |
|
|
1068 | |
|
|
1069 | if (gotsig && ev_is_default_loop (EV_A)) |
|
|
1070 | { |
|
|
1071 | int signum; |
|
|
1072 | gotsig = 0; |
|
|
1073 | |
|
|
1074 | for (signum = signalmax; signum--; ) |
|
|
1075 | if (signals [signum].gotsig) |
|
|
1076 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
1077 | } |
|
|
1078 | |
|
|
1079 | #if EV_ASYNC_ENABLE |
|
|
1080 | if (gotasync) |
|
|
1081 | { |
|
|
1082 | int i; |
|
|
1083 | gotasync = 0; |
|
|
1084 | |
|
|
1085 | for (i = asynccnt; i--; ) |
|
|
1086 | if (asyncs [i]->sent) |
|
|
1087 | { |
|
|
1088 | asyncs [i]->sent = 0; |
|
|
1089 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
1090 | } |
|
|
1091 | } |
|
|
1092 | #endif |
|
|
1093 | } |
|
|
1094 | |
|
|
1095 | /*****************************************************************************/ |
|
|
1096 | |
|
|
1097 | static void |
472 | sighandler (int signum) |
1098 | ev_sighandler (int signum) |
473 | { |
1099 | { |
|
|
1100 | #if EV_MULTIPLICITY |
|
|
1101 | struct ev_loop *loop = &default_loop_struct; |
|
|
1102 | #endif |
|
|
1103 | |
474 | #if WIN32 |
1104 | #if _WIN32 |
475 | signal (signum, sighandler); |
1105 | signal (signum, ev_sighandler); |
476 | #endif |
1106 | #endif |
477 | |
1107 | |
478 | signals [signum - 1].gotsig = 1; |
1108 | signals [signum - 1].gotsig = 1; |
479 | |
1109 | evpipe_write (EV_A_ &gotsig); |
480 | if (!gotsig) |
|
|
481 | { |
|
|
482 | int old_errno = errno; |
|
|
483 | gotsig = 1; |
|
|
484 | write (sigpipe [1], &signum, 1); |
|
|
485 | errno = old_errno; |
|
|
486 | } |
|
|
487 | } |
1110 | } |
488 | |
1111 | |
489 | static void |
1112 | void noinline |
490 | sigcb (EV_P_ struct ev_io *iow, int revents) |
1113 | ev_feed_signal_event (EV_P_ int signum) |
491 | { |
1114 | { |
492 | WL w; |
1115 | WL w; |
|
|
1116 | |
|
|
1117 | #if EV_MULTIPLICITY |
|
|
1118 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1119 | #endif |
|
|
1120 | |
493 | int signum; |
1121 | --signum; |
494 | |
1122 | |
495 | read (sigpipe [0], &revents, 1); |
1123 | if (signum < 0 || signum >= signalmax) |
496 | gotsig = 0; |
1124 | return; |
497 | |
1125 | |
498 | for (signum = signalmax; signum--; ) |
|
|
499 | if (signals [signum].gotsig) |
|
|
500 | { |
|
|
501 | signals [signum].gotsig = 0; |
1126 | signals [signum].gotsig = 0; |
502 | |
1127 | |
503 | for (w = signals [signum].head; w; w = w->next) |
1128 | for (w = signals [signum].head; w; w = w->next) |
504 | event (EV_A_ (W)w, EV_SIGNAL); |
1129 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
505 | } |
|
|
506 | } |
|
|
507 | |
|
|
508 | static void |
|
|
509 | siginit (EV_P) |
|
|
510 | { |
|
|
511 | #ifndef WIN32 |
|
|
512 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
|
|
513 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
|
|
514 | |
|
|
515 | /* rather than sort out wether we really need nb, set it */ |
|
|
516 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
|
|
517 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
|
|
518 | #endif |
|
|
519 | |
|
|
520 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
521 | ev_io_start (EV_A_ &sigev); |
|
|
522 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
|
|
523 | } |
1130 | } |
524 | |
1131 | |
525 | /*****************************************************************************/ |
1132 | /*****************************************************************************/ |
526 | |
1133 | |
|
|
1134 | static WL childs [EV_PID_HASHSIZE]; |
|
|
1135 | |
527 | #ifndef WIN32 |
1136 | #ifndef _WIN32 |
528 | |
1137 | |
529 | static struct ev_child *childs [PID_HASHSIZE]; |
|
|
530 | static struct ev_signal childev; |
1138 | static ev_signal childev; |
|
|
1139 | |
|
|
1140 | #ifndef WIFCONTINUED |
|
|
1141 | # define WIFCONTINUED(status) 0 |
|
|
1142 | #endif |
|
|
1143 | |
|
|
1144 | void inline_speed |
|
|
1145 | child_reap (EV_P_ int chain, int pid, int status) |
|
|
1146 | { |
|
|
1147 | ev_child *w; |
|
|
1148 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
|
|
1149 | |
|
|
1150 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1151 | { |
|
|
1152 | if ((w->pid == pid || !w->pid) |
|
|
1153 | && (!traced || (w->flags & 1))) |
|
|
1154 | { |
|
|
1155 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
|
|
1156 | w->rpid = pid; |
|
|
1157 | w->rstatus = status; |
|
|
1158 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
1159 | } |
|
|
1160 | } |
|
|
1161 | } |
531 | |
1162 | |
532 | #ifndef WCONTINUED |
1163 | #ifndef WCONTINUED |
533 | # define WCONTINUED 0 |
1164 | # define WCONTINUED 0 |
534 | #endif |
1165 | #endif |
535 | |
1166 | |
536 | static void |
1167 | static void |
537 | child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) |
|
|
538 | { |
|
|
539 | struct ev_child *w; |
|
|
540 | |
|
|
541 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
|
|
542 | if (w->pid == pid || !w->pid) |
|
|
543 | { |
|
|
544 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
|
|
545 | w->rpid = pid; |
|
|
546 | w->rstatus = status; |
|
|
547 | event (EV_A_ (W)w, EV_CHILD); |
|
|
548 | } |
|
|
549 | } |
|
|
550 | |
|
|
551 | static void |
|
|
552 | childcb (EV_P_ struct ev_signal *sw, int revents) |
1168 | childcb (EV_P_ ev_signal *sw, int revents) |
553 | { |
1169 | { |
554 | int pid, status; |
1170 | int pid, status; |
555 | |
1171 | |
|
|
1172 | /* some systems define WCONTINUED but then fail to support it (linux 2.4) */ |
556 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
1173 | if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
557 | { |
1174 | if (!WCONTINUED |
|
|
1175 | || errno != EINVAL |
|
|
1176 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
|
|
1177 | return; |
|
|
1178 | |
558 | /* make sure we are called again until all childs have been reaped */ |
1179 | /* make sure we are called again until all children have been reaped */ |
|
|
1180 | /* we need to do it this way so that the callback gets called before we continue */ |
559 | event (EV_A_ (W)sw, EV_SIGNAL); |
1181 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
560 | |
1182 | |
561 | child_reap (EV_A_ sw, pid, pid, status); |
1183 | child_reap (EV_A_ pid, pid, status); |
|
|
1184 | if (EV_PID_HASHSIZE > 1) |
562 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
1185 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
563 | } |
|
|
564 | } |
1186 | } |
565 | |
1187 | |
566 | #endif |
1188 | #endif |
567 | |
1189 | |
568 | /*****************************************************************************/ |
1190 | /*****************************************************************************/ |
569 | |
1191 | |
|
|
1192 | #if EV_USE_PORT |
|
|
1193 | # include "ev_port.c" |
|
|
1194 | #endif |
570 | #if EV_USE_KQUEUE |
1195 | #if EV_USE_KQUEUE |
571 | # include "ev_kqueue.c" |
1196 | # include "ev_kqueue.c" |
572 | #endif |
1197 | #endif |
573 | #if EV_USE_EPOLL |
1198 | #if EV_USE_EPOLL |
574 | # include "ev_epoll.c" |
1199 | # include "ev_epoll.c" |
… | |
… | |
591 | { |
1216 | { |
592 | return EV_VERSION_MINOR; |
1217 | return EV_VERSION_MINOR; |
593 | } |
1218 | } |
594 | |
1219 | |
595 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1220 | /* return true if we are running with elevated privileges and should ignore env variables */ |
596 | static int |
1221 | int inline_size |
597 | enable_secure (void) |
1222 | enable_secure (void) |
598 | { |
1223 | { |
599 | #ifdef WIN32 |
1224 | #ifdef _WIN32 |
600 | return 0; |
1225 | return 0; |
601 | #else |
1226 | #else |
602 | return getuid () != geteuid () |
1227 | return getuid () != geteuid () |
603 | || getgid () != getegid (); |
1228 | || getgid () != getegid (); |
604 | #endif |
1229 | #endif |
605 | } |
1230 | } |
606 | |
1231 | |
607 | int |
1232 | unsigned int |
608 | ev_method (EV_P) |
1233 | ev_supported_backends (void) |
609 | { |
1234 | { |
610 | return method; |
1235 | unsigned int flags = 0; |
611 | } |
|
|
612 | |
1236 | |
613 | static void |
1237 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
614 | loop_init (EV_P_ int methods) |
1238 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
|
|
1239 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
1240 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
1241 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
|
|
1242 | |
|
|
1243 | return flags; |
|
|
1244 | } |
|
|
1245 | |
|
|
1246 | unsigned int |
|
|
1247 | ev_recommended_backends (void) |
615 | { |
1248 | { |
616 | if (!method) |
1249 | unsigned int flags = ev_supported_backends (); |
|
|
1250 | |
|
|
1251 | #ifndef __NetBSD__ |
|
|
1252 | /* kqueue is borked on everything but netbsd apparently */ |
|
|
1253 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
|
|
1254 | flags &= ~EVBACKEND_KQUEUE; |
|
|
1255 | #endif |
|
|
1256 | #ifdef __APPLE__ |
|
|
1257 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
|
|
1258 | flags &= ~EVBACKEND_POLL; |
|
|
1259 | #endif |
|
|
1260 | |
|
|
1261 | return flags; |
|
|
1262 | } |
|
|
1263 | |
|
|
1264 | unsigned int |
|
|
1265 | ev_embeddable_backends (void) |
|
|
1266 | { |
|
|
1267 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
|
|
1268 | |
|
|
1269 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1270 | /* please fix it and tell me how to detect the fix */ |
|
|
1271 | flags &= ~EVBACKEND_EPOLL; |
|
|
1272 | |
|
|
1273 | return flags; |
|
|
1274 | } |
|
|
1275 | |
|
|
1276 | unsigned int |
|
|
1277 | ev_backend (EV_P) |
|
|
1278 | { |
|
|
1279 | return backend; |
|
|
1280 | } |
|
|
1281 | |
|
|
1282 | unsigned int |
|
|
1283 | ev_loop_count (EV_P) |
|
|
1284 | { |
|
|
1285 | return loop_count; |
|
|
1286 | } |
|
|
1287 | |
|
|
1288 | void |
|
|
1289 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1290 | { |
|
|
1291 | io_blocktime = interval; |
|
|
1292 | } |
|
|
1293 | |
|
|
1294 | void |
|
|
1295 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1296 | { |
|
|
1297 | timeout_blocktime = interval; |
|
|
1298 | } |
|
|
1299 | |
|
|
1300 | static void noinline |
|
|
1301 | loop_init (EV_P_ unsigned int flags) |
|
|
1302 | { |
|
|
1303 | if (!backend) |
617 | { |
1304 | { |
618 | #if EV_USE_MONOTONIC |
1305 | #if EV_USE_MONOTONIC |
619 | { |
1306 | { |
620 | struct timespec ts; |
1307 | struct timespec ts; |
621 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1308 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
622 | have_monotonic = 1; |
1309 | have_monotonic = 1; |
623 | } |
1310 | } |
624 | #endif |
1311 | #endif |
625 | |
1312 | |
626 | rt_now = ev_time (); |
1313 | ev_rt_now = ev_time (); |
627 | mn_now = get_clock (); |
1314 | mn_now = get_clock (); |
628 | now_floor = mn_now; |
1315 | now_floor = mn_now; |
629 | rtmn_diff = rt_now - mn_now; |
1316 | rtmn_diff = ev_rt_now - mn_now; |
630 | |
1317 | |
631 | if (methods == EVMETHOD_AUTO) |
1318 | io_blocktime = 0.; |
632 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
1319 | timeout_blocktime = 0.; |
|
|
1320 | backend = 0; |
|
|
1321 | backend_fd = -1; |
|
|
1322 | gotasync = 0; |
|
|
1323 | #if EV_USE_INOTIFY |
|
|
1324 | fs_fd = -2; |
|
|
1325 | #endif |
|
|
1326 | |
|
|
1327 | /* pid check not overridable via env */ |
|
|
1328 | #ifndef _WIN32 |
|
|
1329 | if (flags & EVFLAG_FORKCHECK) |
|
|
1330 | curpid = getpid (); |
|
|
1331 | #endif |
|
|
1332 | |
|
|
1333 | if (!(flags & EVFLAG_NOENV) |
|
|
1334 | && !enable_secure () |
|
|
1335 | && getenv ("LIBEV_FLAGS")) |
633 | methods = atoi (getenv ("LIBEV_METHODS")); |
1336 | flags = atoi (getenv ("LIBEV_FLAGS")); |
634 | else |
|
|
635 | methods = EVMETHOD_ANY; |
|
|
636 | |
1337 | |
637 | method = 0; |
1338 | if (!(flags & 0x0000ffffU)) |
638 | #if EV_USE_WIN32 |
1339 | flags |= ev_recommended_backends (); |
639 | if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods); |
1340 | |
|
|
1341 | #if EV_USE_PORT |
|
|
1342 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
640 | #endif |
1343 | #endif |
641 | #if EV_USE_KQUEUE |
1344 | #if EV_USE_KQUEUE |
642 | if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); |
1345 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
643 | #endif |
1346 | #endif |
644 | #if EV_USE_EPOLL |
1347 | #if EV_USE_EPOLL |
645 | if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); |
1348 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
646 | #endif |
1349 | #endif |
647 | #if EV_USE_POLL |
1350 | #if EV_USE_POLL |
648 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
1351 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
649 | #endif |
1352 | #endif |
650 | #if EV_USE_SELECT |
1353 | #if EV_USE_SELECT |
651 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
1354 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
652 | #endif |
1355 | #endif |
653 | } |
|
|
654 | } |
|
|
655 | |
1356 | |
656 | void |
1357 | ev_init (&pipeev, pipecb); |
|
|
1358 | ev_set_priority (&pipeev, EV_MAXPRI); |
|
|
1359 | } |
|
|
1360 | } |
|
|
1361 | |
|
|
1362 | static void noinline |
657 | loop_destroy (EV_P) |
1363 | loop_destroy (EV_P) |
658 | { |
1364 | { |
659 | int i; |
1365 | int i; |
660 | |
1366 | |
|
|
1367 | if (ev_is_active (&pipeev)) |
|
|
1368 | { |
|
|
1369 | ev_ref (EV_A); /* signal watcher */ |
|
|
1370 | ev_io_stop (EV_A_ &pipeev); |
|
|
1371 | |
|
|
1372 | #if EV_USE_EVENTFD |
|
|
1373 | if (evfd >= 0) |
|
|
1374 | close (evfd); |
|
|
1375 | #endif |
|
|
1376 | |
|
|
1377 | if (evpipe [0] >= 0) |
|
|
1378 | { |
|
|
1379 | close (evpipe [0]); |
|
|
1380 | close (evpipe [1]); |
|
|
1381 | } |
|
|
1382 | } |
|
|
1383 | |
661 | #if EV_USE_WIN32 |
1384 | #if EV_USE_INOTIFY |
662 | if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A); |
1385 | if (fs_fd >= 0) |
|
|
1386 | close (fs_fd); |
|
|
1387 | #endif |
|
|
1388 | |
|
|
1389 | if (backend_fd >= 0) |
|
|
1390 | close (backend_fd); |
|
|
1391 | |
|
|
1392 | #if EV_USE_PORT |
|
|
1393 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
663 | #endif |
1394 | #endif |
664 | #if EV_USE_KQUEUE |
1395 | #if EV_USE_KQUEUE |
665 | if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); |
1396 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
666 | #endif |
1397 | #endif |
667 | #if EV_USE_EPOLL |
1398 | #if EV_USE_EPOLL |
668 | if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); |
1399 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
669 | #endif |
1400 | #endif |
670 | #if EV_USE_POLL |
1401 | #if EV_USE_POLL |
671 | if (method == EVMETHOD_POLL ) poll_destroy (EV_A); |
1402 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
672 | #endif |
1403 | #endif |
673 | #if EV_USE_SELECT |
1404 | #if EV_USE_SELECT |
674 | if (method == EVMETHOD_SELECT) select_destroy (EV_A); |
1405 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
675 | #endif |
1406 | #endif |
676 | |
1407 | |
677 | for (i = NUMPRI; i--; ) |
1408 | for (i = NUMPRI; i--; ) |
|
|
1409 | { |
678 | array_free (pending, [i]); |
1410 | array_free (pending, [i]); |
|
|
1411 | #if EV_IDLE_ENABLE |
|
|
1412 | array_free (idle, [i]); |
|
|
1413 | #endif |
|
|
1414 | } |
679 | |
1415 | |
|
|
1416 | ev_free (anfds); anfdmax = 0; |
|
|
1417 | |
|
|
1418 | /* have to use the microsoft-never-gets-it-right macro */ |
680 | array_free (fdchange, ); |
1419 | array_free (fdchange, EMPTY); |
681 | array_free (timer, ); |
1420 | array_free (timer, EMPTY); |
|
|
1421 | #if EV_PERIODIC_ENABLE |
682 | array_free (periodic, ); |
1422 | array_free (periodic, EMPTY); |
683 | array_free (idle, ); |
1423 | #endif |
|
|
1424 | #if EV_FORK_ENABLE |
|
|
1425 | array_free (fork, EMPTY); |
|
|
1426 | #endif |
684 | array_free (prepare, ); |
1427 | array_free (prepare, EMPTY); |
685 | array_free (check, ); |
1428 | array_free (check, EMPTY); |
|
|
1429 | #if EV_ASYNC_ENABLE |
|
|
1430 | array_free (async, EMPTY); |
|
|
1431 | #endif |
686 | |
1432 | |
687 | method = 0; |
1433 | backend = 0; |
688 | /*TODO*/ |
|
|
689 | } |
1434 | } |
690 | |
1435 | |
691 | void |
1436 | #if EV_USE_INOTIFY |
|
|
1437 | void inline_size infy_fork (EV_P); |
|
|
1438 | #endif |
|
|
1439 | |
|
|
1440 | void inline_size |
692 | loop_fork (EV_P) |
1441 | loop_fork (EV_P) |
693 | { |
1442 | { |
694 | /*TODO*/ |
1443 | #if EV_USE_PORT |
|
|
1444 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
|
|
1445 | #endif |
|
|
1446 | #if EV_USE_KQUEUE |
|
|
1447 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
|
|
1448 | #endif |
695 | #if EV_USE_EPOLL |
1449 | #if EV_USE_EPOLL |
696 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
1450 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
697 | #endif |
1451 | #endif |
698 | #if EV_USE_KQUEUE |
1452 | #if EV_USE_INOTIFY |
699 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
1453 | infy_fork (EV_A); |
700 | #endif |
1454 | #endif |
|
|
1455 | |
|
|
1456 | if (ev_is_active (&pipeev)) |
|
|
1457 | { |
|
|
1458 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1459 | /* while we modify the fd vars */ |
|
|
1460 | gotsig = 1; |
|
|
1461 | #if EV_ASYNC_ENABLE |
|
|
1462 | gotasync = 1; |
|
|
1463 | #endif |
|
|
1464 | |
|
|
1465 | ev_ref (EV_A); |
|
|
1466 | ev_io_stop (EV_A_ &pipeev); |
|
|
1467 | |
|
|
1468 | #if EV_USE_EVENTFD |
|
|
1469 | if (evfd >= 0) |
|
|
1470 | close (evfd); |
|
|
1471 | #endif |
|
|
1472 | |
|
|
1473 | if (evpipe [0] >= 0) |
|
|
1474 | { |
|
|
1475 | close (evpipe [0]); |
|
|
1476 | close (evpipe [1]); |
|
|
1477 | } |
|
|
1478 | |
|
|
1479 | evpipe_init (EV_A); |
|
|
1480 | /* now iterate over everything, in case we missed something */ |
|
|
1481 | pipecb (EV_A_ &pipeev, EV_READ); |
|
|
1482 | } |
|
|
1483 | |
|
|
1484 | postfork = 0; |
701 | } |
1485 | } |
|
|
1486 | |
|
|
1487 | #if EV_MULTIPLICITY |
|
|
1488 | |
|
|
1489 | struct ev_loop * |
|
|
1490 | ev_loop_new (unsigned int flags) |
|
|
1491 | { |
|
|
1492 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
|
|
1493 | |
|
|
1494 | memset (loop, 0, sizeof (struct ev_loop)); |
|
|
1495 | |
|
|
1496 | loop_init (EV_A_ flags); |
|
|
1497 | |
|
|
1498 | if (ev_backend (EV_A)) |
|
|
1499 | return loop; |
|
|
1500 | |
|
|
1501 | return 0; |
|
|
1502 | } |
|
|
1503 | |
|
|
1504 | void |
|
|
1505 | ev_loop_destroy (EV_P) |
|
|
1506 | { |
|
|
1507 | loop_destroy (EV_A); |
|
|
1508 | ev_free (loop); |
|
|
1509 | } |
|
|
1510 | |
|
|
1511 | void |
|
|
1512 | ev_loop_fork (EV_P) |
|
|
1513 | { |
|
|
1514 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1515 | } |
|
|
1516 | |
|
|
1517 | #if EV_VERIFY |
|
|
1518 | static void |
|
|
1519 | array_check (W **ws, int cnt) |
|
|
1520 | { |
|
|
1521 | while (cnt--) |
|
|
1522 | assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1523 | } |
|
|
1524 | #endif |
|
|
1525 | |
|
|
1526 | void |
|
|
1527 | ev_loop_verify (EV_P) |
|
|
1528 | { |
|
|
1529 | #if EV_VERIFY |
|
|
1530 | int i; |
|
|
1531 | |
|
|
1532 | checkheap (timers, timercnt); |
|
|
1533 | #if EV_PERIODIC_ENABLE |
|
|
1534 | checkheap (periodics, periodiccnt); |
|
|
1535 | #endif |
|
|
1536 | |
|
|
1537 | #if EV_IDLE_ENABLE |
|
|
1538 | for (i = NUMPRI; i--; ) |
|
|
1539 | array_check ((W **)idles [i], idlecnt [i]); |
|
|
1540 | #endif |
|
|
1541 | #if EV_FORK_ENABLE |
|
|
1542 | array_check ((W **)forks, forkcnt); |
|
|
1543 | #endif |
|
|
1544 | #if EV_ASYNC_ENABLE |
|
|
1545 | array_check ((W **)asyncs, asynccnt); |
|
|
1546 | #endif |
|
|
1547 | array_check ((W **)prepares, preparecnt); |
|
|
1548 | array_check ((W **)checks, checkcnt); |
|
|
1549 | #endif |
|
|
1550 | } |
|
|
1551 | |
|
|
1552 | #endif /* multiplicity */ |
702 | |
1553 | |
703 | #if EV_MULTIPLICITY |
1554 | #if EV_MULTIPLICITY |
704 | struct ev_loop * |
1555 | struct ev_loop * |
705 | ev_loop_new (int methods) |
1556 | ev_default_loop_init (unsigned int flags) |
706 | { |
1557 | #else |
707 | struct ev_loop *loop = (struct ev_loop *)calloc (1, sizeof (struct ev_loop)); |
1558 | int |
708 | |
1559 | ev_default_loop (unsigned int flags) |
709 | loop_init (EV_A_ methods); |
|
|
710 | |
|
|
711 | if (ev_method (EV_A)) |
|
|
712 | return loop; |
|
|
713 | |
|
|
714 | return 0; |
|
|
715 | } |
|
|
716 | |
|
|
717 | void |
|
|
718 | ev_loop_destroy (EV_P) |
|
|
719 | { |
|
|
720 | loop_destroy (EV_A); |
|
|
721 | free (loop); |
|
|
722 | } |
|
|
723 | |
|
|
724 | void |
|
|
725 | ev_loop_fork (EV_P) |
|
|
726 | { |
|
|
727 | loop_fork (EV_A); |
|
|
728 | } |
|
|
729 | |
|
|
730 | #endif |
1560 | #endif |
731 | |
1561 | { |
|
|
1562 | if (!ev_default_loop_ptr) |
|
|
1563 | { |
732 | #if EV_MULTIPLICITY |
1564 | #if EV_MULTIPLICITY |
733 | struct ev_loop default_loop_struct; |
1565 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
734 | static struct ev_loop *default_loop; |
|
|
735 | |
|
|
736 | struct ev_loop * |
|
|
737 | #else |
1566 | #else |
738 | static int default_loop; |
|
|
739 | |
|
|
740 | int |
|
|
741 | #endif |
|
|
742 | ev_default_loop (int methods) |
|
|
743 | { |
|
|
744 | if (sigpipe [0] == sigpipe [1]) |
|
|
745 | if (pipe (sigpipe)) |
|
|
746 | return 0; |
|
|
747 | |
|
|
748 | if (!default_loop) |
|
|
749 | { |
|
|
750 | #if EV_MULTIPLICITY |
|
|
751 | struct ev_loop *loop = default_loop = &default_loop_struct; |
|
|
752 | #else |
|
|
753 | default_loop = 1; |
1567 | ev_default_loop_ptr = 1; |
754 | #endif |
1568 | #endif |
755 | |
1569 | |
756 | loop_init (EV_A_ methods); |
1570 | loop_init (EV_A_ flags); |
757 | |
1571 | |
758 | if (ev_method (EV_A)) |
1572 | if (ev_backend (EV_A)) |
759 | { |
1573 | { |
760 | ev_watcher_init (&sigev, sigcb); |
|
|
761 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
762 | siginit (EV_A); |
|
|
763 | |
|
|
764 | #ifndef WIN32 |
1574 | #ifndef _WIN32 |
765 | ev_signal_init (&childev, childcb, SIGCHLD); |
1575 | ev_signal_init (&childev, childcb, SIGCHLD); |
766 | ev_set_priority (&childev, EV_MAXPRI); |
1576 | ev_set_priority (&childev, EV_MAXPRI); |
767 | ev_signal_start (EV_A_ &childev); |
1577 | ev_signal_start (EV_A_ &childev); |
768 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1578 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
769 | #endif |
1579 | #endif |
770 | } |
1580 | } |
771 | else |
1581 | else |
772 | default_loop = 0; |
1582 | ev_default_loop_ptr = 0; |
773 | } |
1583 | } |
774 | |
1584 | |
775 | return default_loop; |
1585 | return ev_default_loop_ptr; |
776 | } |
1586 | } |
777 | |
1587 | |
778 | void |
1588 | void |
779 | ev_default_destroy (void) |
1589 | ev_default_destroy (void) |
780 | { |
1590 | { |
781 | #if EV_MULTIPLICITY |
1591 | #if EV_MULTIPLICITY |
782 | struct ev_loop *loop = default_loop; |
1592 | struct ev_loop *loop = ev_default_loop_ptr; |
783 | #endif |
1593 | #endif |
784 | |
1594 | |
|
|
1595 | #ifndef _WIN32 |
785 | ev_ref (EV_A); /* child watcher */ |
1596 | ev_ref (EV_A); /* child watcher */ |
786 | ev_signal_stop (EV_A_ &childev); |
1597 | ev_signal_stop (EV_A_ &childev); |
787 | |
1598 | #endif |
788 | ev_ref (EV_A); /* signal watcher */ |
|
|
789 | ev_io_stop (EV_A_ &sigev); |
|
|
790 | |
|
|
791 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
792 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
793 | |
1599 | |
794 | loop_destroy (EV_A); |
1600 | loop_destroy (EV_A); |
795 | } |
1601 | } |
796 | |
1602 | |
797 | void |
1603 | void |
798 | ev_default_fork (void) |
1604 | ev_default_fork (void) |
799 | { |
1605 | { |
800 | #if EV_MULTIPLICITY |
1606 | #if EV_MULTIPLICITY |
801 | struct ev_loop *loop = default_loop; |
1607 | struct ev_loop *loop = ev_default_loop_ptr; |
802 | #endif |
1608 | #endif |
803 | |
1609 | |
804 | loop_fork (EV_A); |
1610 | if (backend) |
805 | |
1611 | postfork = 1; /* must be in line with ev_loop_fork */ |
806 | ev_io_stop (EV_A_ &sigev); |
|
|
807 | close (sigpipe [0]); |
|
|
808 | close (sigpipe [1]); |
|
|
809 | pipe (sigpipe); |
|
|
810 | |
|
|
811 | ev_ref (EV_A); /* signal watcher */ |
|
|
812 | siginit (EV_A); |
|
|
813 | } |
1612 | } |
814 | |
1613 | |
815 | /*****************************************************************************/ |
1614 | /*****************************************************************************/ |
816 | |
1615 | |
817 | static void |
1616 | void |
|
|
1617 | ev_invoke (EV_P_ void *w, int revents) |
|
|
1618 | { |
|
|
1619 | EV_CB_INVOKE ((W)w, revents); |
|
|
1620 | } |
|
|
1621 | |
|
|
1622 | void inline_speed |
818 | call_pending (EV_P) |
1623 | call_pending (EV_P) |
819 | { |
1624 | { |
820 | int pri; |
1625 | int pri; |
821 | |
1626 | |
822 | for (pri = NUMPRI; pri--; ) |
1627 | for (pri = NUMPRI; pri--; ) |
823 | while (pendingcnt [pri]) |
1628 | while (pendingcnt [pri]) |
824 | { |
1629 | { |
825 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1630 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
826 | |
1631 | |
827 | if (p->w) |
1632 | if (expect_true (p->w)) |
828 | { |
1633 | { |
|
|
1634 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1635 | |
829 | p->w->pending = 0; |
1636 | p->w->pending = 0; |
830 | p->w->cb (EV_A_ p->w, p->events); |
1637 | EV_CB_INVOKE (p->w, p->events); |
|
|
1638 | EV_FREQUENT_CHECK; |
831 | } |
1639 | } |
832 | } |
1640 | } |
833 | } |
1641 | } |
834 | |
1642 | |
835 | static void |
1643 | #if EV_IDLE_ENABLE |
|
|
1644 | void inline_size |
|
|
1645 | idle_reify (EV_P) |
|
|
1646 | { |
|
|
1647 | if (expect_false (idleall)) |
|
|
1648 | { |
|
|
1649 | int pri; |
|
|
1650 | |
|
|
1651 | for (pri = NUMPRI; pri--; ) |
|
|
1652 | { |
|
|
1653 | if (pendingcnt [pri]) |
|
|
1654 | break; |
|
|
1655 | |
|
|
1656 | if (idlecnt [pri]) |
|
|
1657 | { |
|
|
1658 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
|
|
1659 | break; |
|
|
1660 | } |
|
|
1661 | } |
|
|
1662 | } |
|
|
1663 | } |
|
|
1664 | #endif |
|
|
1665 | |
|
|
1666 | void inline_size |
836 | timers_reify (EV_P) |
1667 | timers_reify (EV_P) |
837 | { |
1668 | { |
|
|
1669 | EV_FREQUENT_CHECK; |
|
|
1670 | |
838 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1671 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
839 | { |
1672 | { |
840 | struct ev_timer *w = timers [0]; |
1673 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
841 | |
1674 | |
842 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
1675 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
843 | |
1676 | |
844 | /* first reschedule or stop timer */ |
1677 | /* first reschedule or stop timer */ |
845 | if (w->repeat) |
1678 | if (w->repeat) |
846 | { |
1679 | { |
|
|
1680 | ev_at (w) += w->repeat; |
|
|
1681 | if (ev_at (w) < mn_now) |
|
|
1682 | ev_at (w) = mn_now; |
|
|
1683 | |
847 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1684 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
848 | ((WT)w)->at = mn_now + w->repeat; |
1685 | |
|
|
1686 | ANHE_at_cache (timers [HEAP0]); |
849 | downheap ((WT *)timers, timercnt, 0); |
1687 | downheap (timers, timercnt, HEAP0); |
850 | } |
1688 | } |
851 | else |
1689 | else |
852 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1690 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
853 | |
1691 | |
|
|
1692 | EV_FREQUENT_CHECK; |
854 | event (EV_A_ (W)w, EV_TIMEOUT); |
1693 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
855 | } |
1694 | } |
856 | } |
1695 | } |
857 | |
1696 | |
858 | static void |
1697 | #if EV_PERIODIC_ENABLE |
|
|
1698 | void inline_size |
859 | periodics_reify (EV_P) |
1699 | periodics_reify (EV_P) |
860 | { |
1700 | { |
|
|
1701 | EV_FREQUENT_CHECK; |
|
|
1702 | |
861 | while (periodiccnt && ((WT)periodics [0])->at <= rt_now) |
1703 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
862 | { |
1704 | { |
863 | struct ev_periodic *w = periodics [0]; |
1705 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
864 | |
1706 | |
865 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
1707 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
866 | |
1708 | |
867 | /* first reschedule or stop timer */ |
1709 | /* first reschedule or stop timer */ |
868 | if (w->interval) |
1710 | if (w->reschedule_cb) |
869 | { |
1711 | { |
870 | ((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
1712 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
871 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now)); |
1713 | |
|
|
1714 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
1715 | |
|
|
1716 | ANHE_at_cache (periodics [HEAP0]); |
872 | downheap ((WT *)periodics, periodiccnt, 0); |
1717 | downheap (periodics, periodiccnt, HEAP0); |
|
|
1718 | } |
|
|
1719 | else if (w->interval) |
|
|
1720 | { |
|
|
1721 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1722 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1723 | /* this might happen because of floating point inexactness */ |
|
|
1724 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1725 | { |
|
|
1726 | ev_at (w) += w->interval; |
|
|
1727 | |
|
|
1728 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1729 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1730 | /* has effectively asked to get triggered more often than possible */ |
|
|
1731 | if (ev_at (w) < ev_rt_now) |
|
|
1732 | ev_at (w) = ev_rt_now; |
|
|
1733 | } |
|
|
1734 | |
|
|
1735 | ANHE_at_cache (periodics [HEAP0]); |
|
|
1736 | downheap (periodics, periodiccnt, HEAP0); |
873 | } |
1737 | } |
874 | else |
1738 | else |
875 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1739 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
876 | |
1740 | |
|
|
1741 | EV_FREQUENT_CHECK; |
877 | event (EV_A_ (W)w, EV_PERIODIC); |
1742 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
878 | } |
1743 | } |
879 | } |
1744 | } |
880 | |
1745 | |
881 | static void |
1746 | static void noinline |
882 | periodics_reschedule (EV_P) |
1747 | periodics_reschedule (EV_P) |
883 | { |
1748 | { |
884 | int i; |
1749 | int i; |
885 | |
1750 | |
886 | /* adjust periodics after time jump */ |
1751 | /* adjust periodics after time jump */ |
887 | for (i = 0; i < periodiccnt; ++i) |
1752 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
888 | { |
1753 | { |
889 | struct ev_periodic *w = periodics [i]; |
1754 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
890 | |
1755 | |
|
|
1756 | if (w->reschedule_cb) |
|
|
1757 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
891 | if (w->interval) |
1758 | else if (w->interval) |
|
|
1759 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1760 | |
|
|
1761 | ANHE_at_cache (periodics [i]); |
|
|
1762 | } |
|
|
1763 | |
|
|
1764 | reheap (periodics, periodiccnt); |
|
|
1765 | } |
|
|
1766 | #endif |
|
|
1767 | |
|
|
1768 | void inline_speed |
|
|
1769 | time_update (EV_P_ ev_tstamp max_block) |
|
|
1770 | { |
|
|
1771 | int i; |
|
|
1772 | |
|
|
1773 | #if EV_USE_MONOTONIC |
|
|
1774 | if (expect_true (have_monotonic)) |
|
|
1775 | { |
|
|
1776 | ev_tstamp odiff = rtmn_diff; |
|
|
1777 | |
|
|
1778 | mn_now = get_clock (); |
|
|
1779 | |
|
|
1780 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
1781 | /* interpolate in the meantime */ |
|
|
1782 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
892 | { |
1783 | { |
893 | ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1784 | ev_rt_now = rtmn_diff + mn_now; |
|
|
1785 | return; |
|
|
1786 | } |
894 | |
1787 | |
895 | if (fabs (diff) >= 1e-4) |
1788 | now_floor = mn_now; |
|
|
1789 | ev_rt_now = ev_time (); |
|
|
1790 | |
|
|
1791 | /* loop a few times, before making important decisions. |
|
|
1792 | * on the choice of "4": one iteration isn't enough, |
|
|
1793 | * in case we get preempted during the calls to |
|
|
1794 | * ev_time and get_clock. a second call is almost guaranteed |
|
|
1795 | * to succeed in that case, though. and looping a few more times |
|
|
1796 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1797 | * in the unlikely event of having been preempted here. |
|
|
1798 | */ |
|
|
1799 | for (i = 4; --i; ) |
|
|
1800 | { |
|
|
1801 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1802 | |
|
|
1803 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
|
|
1804 | return; /* all is well */ |
|
|
1805 | |
|
|
1806 | ev_rt_now = ev_time (); |
|
|
1807 | mn_now = get_clock (); |
|
|
1808 | now_floor = mn_now; |
|
|
1809 | } |
|
|
1810 | |
|
|
1811 | # if EV_PERIODIC_ENABLE |
|
|
1812 | periodics_reschedule (EV_A); |
|
|
1813 | # endif |
|
|
1814 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1815 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1816 | } |
|
|
1817 | else |
|
|
1818 | #endif |
|
|
1819 | { |
|
|
1820 | ev_rt_now = ev_time (); |
|
|
1821 | |
|
|
1822 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
|
|
1823 | { |
|
|
1824 | #if EV_PERIODIC_ENABLE |
|
|
1825 | periodics_reschedule (EV_A); |
|
|
1826 | #endif |
|
|
1827 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1828 | for (i = 0; i < timercnt; ++i) |
896 | { |
1829 | { |
897 | ev_periodic_stop (EV_A_ w); |
1830 | ANHE *he = timers + i + HEAP0; |
898 | ev_periodic_start (EV_A_ w); |
1831 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
899 | |
1832 | ANHE_at_cache (*he); |
900 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
|
|
901 | } |
1833 | } |
902 | } |
1834 | } |
903 | } |
|
|
904 | } |
|
|
905 | |
1835 | |
906 | inline int |
|
|
907 | time_update_monotonic (EV_P) |
|
|
908 | { |
|
|
909 | mn_now = get_clock (); |
|
|
910 | |
|
|
911 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
|
|
912 | { |
|
|
913 | rt_now = rtmn_diff + mn_now; |
|
|
914 | return 0; |
|
|
915 | } |
|
|
916 | else |
|
|
917 | { |
|
|
918 | now_floor = mn_now; |
|
|
919 | rt_now = ev_time (); |
|
|
920 | return 1; |
|
|
921 | } |
|
|
922 | } |
|
|
923 | |
|
|
924 | static void |
|
|
925 | time_update (EV_P) |
|
|
926 | { |
|
|
927 | int i; |
|
|
928 | |
|
|
929 | #if EV_USE_MONOTONIC |
|
|
930 | if (expect_true (have_monotonic)) |
|
|
931 | { |
|
|
932 | if (time_update_monotonic (EV_A)) |
|
|
933 | { |
|
|
934 | ev_tstamp odiff = rtmn_diff; |
|
|
935 | |
|
|
936 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
|
|
937 | { |
|
|
938 | rtmn_diff = rt_now - mn_now; |
|
|
939 | |
|
|
940 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
|
|
941 | return; /* all is well */ |
|
|
942 | |
|
|
943 | rt_now = ev_time (); |
|
|
944 | mn_now = get_clock (); |
|
|
945 | now_floor = mn_now; |
|
|
946 | } |
|
|
947 | |
|
|
948 | periodics_reschedule (EV_A); |
|
|
949 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
950 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
951 | } |
|
|
952 | } |
|
|
953 | else |
|
|
954 | #endif |
|
|
955 | { |
|
|
956 | rt_now = ev_time (); |
|
|
957 | |
|
|
958 | if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
|
|
959 | { |
|
|
960 | periodics_reschedule (EV_A); |
|
|
961 | |
|
|
962 | /* adjust timers. this is easy, as the offset is the same for all */ |
|
|
963 | for (i = 0; i < timercnt; ++i) |
|
|
964 | ((WT)timers [i])->at += rt_now - mn_now; |
|
|
965 | } |
|
|
966 | |
|
|
967 | mn_now = rt_now; |
1836 | mn_now = ev_rt_now; |
968 | } |
1837 | } |
969 | } |
1838 | } |
970 | |
1839 | |
971 | void |
1840 | void |
972 | ev_ref (EV_P) |
1841 | ev_ref (EV_P) |
… | |
… | |
983 | static int loop_done; |
1852 | static int loop_done; |
984 | |
1853 | |
985 | void |
1854 | void |
986 | ev_loop (EV_P_ int flags) |
1855 | ev_loop (EV_P_ int flags) |
987 | { |
1856 | { |
988 | double block; |
1857 | loop_done = EVUNLOOP_CANCEL; |
989 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
1858 | |
|
|
1859 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
990 | |
1860 | |
991 | do |
1861 | do |
992 | { |
1862 | { |
|
|
1863 | #if EV_VERIFY >= 2 |
|
|
1864 | ev_loop_verify (EV_A); |
|
|
1865 | #endif |
|
|
1866 | |
|
|
1867 | #ifndef _WIN32 |
|
|
1868 | if (expect_false (curpid)) /* penalise the forking check even more */ |
|
|
1869 | if (expect_false (getpid () != curpid)) |
|
|
1870 | { |
|
|
1871 | curpid = getpid (); |
|
|
1872 | postfork = 1; |
|
|
1873 | } |
|
|
1874 | #endif |
|
|
1875 | |
|
|
1876 | #if EV_FORK_ENABLE |
|
|
1877 | /* we might have forked, so queue fork handlers */ |
|
|
1878 | if (expect_false (postfork)) |
|
|
1879 | if (forkcnt) |
|
|
1880 | { |
|
|
1881 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
|
|
1882 | call_pending (EV_A); |
|
|
1883 | } |
|
|
1884 | #endif |
|
|
1885 | |
993 | /* queue check watchers (and execute them) */ |
1886 | /* queue prepare watchers (and execute them) */ |
994 | if (expect_false (preparecnt)) |
1887 | if (expect_false (preparecnt)) |
995 | { |
1888 | { |
996 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1889 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
997 | call_pending (EV_A); |
1890 | call_pending (EV_A); |
998 | } |
1891 | } |
999 | |
1892 | |
|
|
1893 | if (expect_false (!activecnt)) |
|
|
1894 | break; |
|
|
1895 | |
|
|
1896 | /* we might have forked, so reify kernel state if necessary */ |
|
|
1897 | if (expect_false (postfork)) |
|
|
1898 | loop_fork (EV_A); |
|
|
1899 | |
1000 | /* update fd-related kernel structures */ |
1900 | /* update fd-related kernel structures */ |
1001 | fd_reify (EV_A); |
1901 | fd_reify (EV_A); |
1002 | |
1902 | |
1003 | /* calculate blocking time */ |
1903 | /* calculate blocking time */ |
|
|
1904 | { |
|
|
1905 | ev_tstamp waittime = 0.; |
|
|
1906 | ev_tstamp sleeptime = 0.; |
1004 | |
1907 | |
1005 | /* we only need this for !monotonic clockor timers, but as we basically |
1908 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1006 | always have timers, we just calculate it always */ |
|
|
1007 | #if EV_USE_MONOTONIC |
|
|
1008 | if (expect_true (have_monotonic)) |
|
|
1009 | time_update_monotonic (EV_A); |
|
|
1010 | else |
|
|
1011 | #endif |
|
|
1012 | { |
1909 | { |
1013 | rt_now = ev_time (); |
1910 | /* update time to cancel out callback processing overhead */ |
1014 | mn_now = rt_now; |
1911 | time_update (EV_A_ 1e100); |
1015 | } |
|
|
1016 | |
1912 | |
1017 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
|
|
1018 | block = 0.; |
|
|
1019 | else |
|
|
1020 | { |
|
|
1021 | block = MAX_BLOCKTIME; |
1913 | waittime = MAX_BLOCKTIME; |
1022 | |
1914 | |
1023 | if (timercnt) |
1915 | if (timercnt) |
1024 | { |
1916 | { |
1025 | ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; |
1917 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1026 | if (block > to) block = to; |
1918 | if (waittime > to) waittime = to; |
1027 | } |
1919 | } |
1028 | |
1920 | |
|
|
1921 | #if EV_PERIODIC_ENABLE |
1029 | if (periodiccnt) |
1922 | if (periodiccnt) |
1030 | { |
1923 | { |
1031 | ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge; |
1924 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1032 | if (block > to) block = to; |
1925 | if (waittime > to) waittime = to; |
1033 | } |
1926 | } |
|
|
1927 | #endif |
1034 | |
1928 | |
1035 | if (block < 0.) block = 0.; |
1929 | if (expect_false (waittime < timeout_blocktime)) |
|
|
1930 | waittime = timeout_blocktime; |
|
|
1931 | |
|
|
1932 | sleeptime = waittime - backend_fudge; |
|
|
1933 | |
|
|
1934 | if (expect_true (sleeptime > io_blocktime)) |
|
|
1935 | sleeptime = io_blocktime; |
|
|
1936 | |
|
|
1937 | if (sleeptime) |
|
|
1938 | { |
|
|
1939 | ev_sleep (sleeptime); |
|
|
1940 | waittime -= sleeptime; |
|
|
1941 | } |
1036 | } |
1942 | } |
1037 | |
1943 | |
1038 | method_poll (EV_A_ block); |
1944 | ++loop_count; |
|
|
1945 | backend_poll (EV_A_ waittime); |
1039 | |
1946 | |
1040 | /* update rt_now, do magic */ |
1947 | /* update ev_rt_now, do magic */ |
1041 | time_update (EV_A); |
1948 | time_update (EV_A_ waittime + sleeptime); |
|
|
1949 | } |
1042 | |
1950 | |
1043 | /* queue pending timers and reschedule them */ |
1951 | /* queue pending timers and reschedule them */ |
1044 | timers_reify (EV_A); /* relative timers called last */ |
1952 | timers_reify (EV_A); /* relative timers called last */ |
|
|
1953 | #if EV_PERIODIC_ENABLE |
1045 | periodics_reify (EV_A); /* absolute timers called first */ |
1954 | periodics_reify (EV_A); /* absolute timers called first */ |
|
|
1955 | #endif |
1046 | |
1956 | |
|
|
1957 | #if EV_IDLE_ENABLE |
1047 | /* queue idle watchers unless io or timers are pending */ |
1958 | /* queue idle watchers unless other events are pending */ |
1048 | if (!pendingcnt) |
1959 | idle_reify (EV_A); |
1049 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1960 | #endif |
1050 | |
1961 | |
1051 | /* queue check watchers, to be executed first */ |
1962 | /* queue check watchers, to be executed first */ |
1052 | if (checkcnt) |
1963 | if (expect_false (checkcnt)) |
1053 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1964 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1054 | |
1965 | |
1055 | call_pending (EV_A); |
1966 | call_pending (EV_A); |
1056 | } |
1967 | } |
1057 | while (activecnt && !loop_done); |
1968 | while (expect_true ( |
|
|
1969 | activecnt |
|
|
1970 | && !loop_done |
|
|
1971 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
1972 | )); |
1058 | |
1973 | |
1059 | if (loop_done != 2) |
1974 | if (loop_done == EVUNLOOP_ONE) |
1060 | loop_done = 0; |
1975 | loop_done = EVUNLOOP_CANCEL; |
1061 | } |
1976 | } |
1062 | |
1977 | |
1063 | void |
1978 | void |
1064 | ev_unloop (EV_P_ int how) |
1979 | ev_unloop (EV_P_ int how) |
1065 | { |
1980 | { |
1066 | loop_done = how; |
1981 | loop_done = how; |
1067 | } |
1982 | } |
1068 | |
1983 | |
1069 | /*****************************************************************************/ |
1984 | /*****************************************************************************/ |
1070 | |
1985 | |
1071 | inline void |
1986 | void inline_size |
1072 | wlist_add (WL *head, WL elem) |
1987 | wlist_add (WL *head, WL elem) |
1073 | { |
1988 | { |
1074 | elem->next = *head; |
1989 | elem->next = *head; |
1075 | *head = elem; |
1990 | *head = elem; |
1076 | } |
1991 | } |
1077 | |
1992 | |
1078 | inline void |
1993 | void inline_size |
1079 | wlist_del (WL *head, WL elem) |
1994 | wlist_del (WL *head, WL elem) |
1080 | { |
1995 | { |
1081 | while (*head) |
1996 | while (*head) |
1082 | { |
1997 | { |
1083 | if (*head == elem) |
1998 | if (*head == elem) |
… | |
… | |
1088 | |
2003 | |
1089 | head = &(*head)->next; |
2004 | head = &(*head)->next; |
1090 | } |
2005 | } |
1091 | } |
2006 | } |
1092 | |
2007 | |
1093 | inline void |
2008 | void inline_speed |
1094 | ev_clear_pending (EV_P_ W w) |
2009 | clear_pending (EV_P_ W w) |
1095 | { |
2010 | { |
1096 | if (w->pending) |
2011 | if (w->pending) |
1097 | { |
2012 | { |
1098 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2013 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1099 | w->pending = 0; |
2014 | w->pending = 0; |
1100 | } |
2015 | } |
1101 | } |
2016 | } |
1102 | |
2017 | |
1103 | inline void |
2018 | int |
|
|
2019 | ev_clear_pending (EV_P_ void *w) |
|
|
2020 | { |
|
|
2021 | W w_ = (W)w; |
|
|
2022 | int pending = w_->pending; |
|
|
2023 | |
|
|
2024 | if (expect_true (pending)) |
|
|
2025 | { |
|
|
2026 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2027 | w_->pending = 0; |
|
|
2028 | p->w = 0; |
|
|
2029 | return p->events; |
|
|
2030 | } |
|
|
2031 | else |
|
|
2032 | return 0; |
|
|
2033 | } |
|
|
2034 | |
|
|
2035 | void inline_size |
|
|
2036 | pri_adjust (EV_P_ W w) |
|
|
2037 | { |
|
|
2038 | int pri = w->priority; |
|
|
2039 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
|
|
2040 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
|
|
2041 | w->priority = pri; |
|
|
2042 | } |
|
|
2043 | |
|
|
2044 | void inline_speed |
1104 | ev_start (EV_P_ W w, int active) |
2045 | ev_start (EV_P_ W w, int active) |
1105 | { |
2046 | { |
1106 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
2047 | pri_adjust (EV_A_ w); |
1107 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
1108 | |
|
|
1109 | w->active = active; |
2048 | w->active = active; |
1110 | ev_ref (EV_A); |
2049 | ev_ref (EV_A); |
1111 | } |
2050 | } |
1112 | |
2051 | |
1113 | inline void |
2052 | void inline_size |
1114 | ev_stop (EV_P_ W w) |
2053 | ev_stop (EV_P_ W w) |
1115 | { |
2054 | { |
1116 | ev_unref (EV_A); |
2055 | ev_unref (EV_A); |
1117 | w->active = 0; |
2056 | w->active = 0; |
1118 | } |
2057 | } |
1119 | |
2058 | |
1120 | /*****************************************************************************/ |
2059 | /*****************************************************************************/ |
1121 | |
2060 | |
1122 | void |
2061 | void noinline |
1123 | ev_io_start (EV_P_ struct ev_io *w) |
2062 | ev_io_start (EV_P_ ev_io *w) |
1124 | { |
2063 | { |
1125 | int fd = w->fd; |
2064 | int fd = w->fd; |
1126 | |
2065 | |
1127 | if (ev_is_active (w)) |
2066 | if (expect_false (ev_is_active (w))) |
1128 | return; |
2067 | return; |
1129 | |
2068 | |
1130 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2069 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1131 | |
2070 | |
|
|
2071 | EV_FREQUENT_CHECK; |
|
|
2072 | |
1132 | ev_start (EV_A_ (W)w, 1); |
2073 | ev_start (EV_A_ (W)w, 1); |
1133 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
2074 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1134 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
2075 | wlist_add (&anfds[fd].head, (WL)w); |
1135 | |
2076 | |
1136 | fd_change (EV_A_ fd); |
2077 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
1137 | } |
2078 | w->events &= ~EV_IOFDSET; |
1138 | |
2079 | |
1139 | void |
2080 | EV_FREQUENT_CHECK; |
|
|
2081 | } |
|
|
2082 | |
|
|
2083 | void noinline |
1140 | ev_io_stop (EV_P_ struct ev_io *w) |
2084 | ev_io_stop (EV_P_ ev_io *w) |
1141 | { |
2085 | { |
1142 | ev_clear_pending (EV_A_ (W)w); |
2086 | clear_pending (EV_A_ (W)w); |
1143 | if (!ev_is_active (w)) |
2087 | if (expect_false (!ev_is_active (w))) |
1144 | return; |
2088 | return; |
1145 | |
2089 | |
|
|
2090 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
2091 | |
|
|
2092 | EV_FREQUENT_CHECK; |
|
|
2093 | |
1146 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
2094 | wlist_del (&anfds[w->fd].head, (WL)w); |
1147 | ev_stop (EV_A_ (W)w); |
2095 | ev_stop (EV_A_ (W)w); |
1148 | |
2096 | |
1149 | fd_change (EV_A_ w->fd); |
2097 | fd_change (EV_A_ w->fd, 1); |
1150 | } |
|
|
1151 | |
2098 | |
1152 | void |
2099 | EV_FREQUENT_CHECK; |
|
|
2100 | } |
|
|
2101 | |
|
|
2102 | void noinline |
1153 | ev_timer_start (EV_P_ struct ev_timer *w) |
2103 | ev_timer_start (EV_P_ ev_timer *w) |
1154 | { |
2104 | { |
1155 | if (ev_is_active (w)) |
2105 | if (expect_false (ev_is_active (w))) |
1156 | return; |
2106 | return; |
1157 | |
2107 | |
1158 | ((WT)w)->at += mn_now; |
2108 | ev_at (w) += mn_now; |
1159 | |
2109 | |
1160 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2110 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1161 | |
2111 | |
|
|
2112 | EV_FREQUENT_CHECK; |
|
|
2113 | |
|
|
2114 | ++timercnt; |
1162 | ev_start (EV_A_ (W)w, ++timercnt); |
2115 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1163 | array_needsize (timers, timermax, timercnt, ); |
2116 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1164 | timers [timercnt - 1] = w; |
2117 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1165 | upheap ((WT *)timers, timercnt - 1); |
2118 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
2119 | upheap (timers, ev_active (w)); |
1166 | |
2120 | |
|
|
2121 | EV_FREQUENT_CHECK; |
|
|
2122 | |
1167 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
2123 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1168 | } |
2124 | } |
1169 | |
2125 | |
1170 | void |
2126 | void noinline |
1171 | ev_timer_stop (EV_P_ struct ev_timer *w) |
2127 | ev_timer_stop (EV_P_ ev_timer *w) |
1172 | { |
2128 | { |
1173 | ev_clear_pending (EV_A_ (W)w); |
2129 | clear_pending (EV_A_ (W)w); |
1174 | if (!ev_is_active (w)) |
2130 | if (expect_false (!ev_is_active (w))) |
1175 | return; |
2131 | return; |
1176 | |
2132 | |
|
|
2133 | EV_FREQUENT_CHECK; |
|
|
2134 | |
|
|
2135 | { |
|
|
2136 | int active = ev_active (w); |
|
|
2137 | |
1177 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
2138 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
1178 | |
2139 | |
1179 | if (((W)w)->active < timercnt--) |
2140 | --timercnt; |
|
|
2141 | |
|
|
2142 | if (expect_true (active < timercnt + HEAP0)) |
1180 | { |
2143 | { |
1181 | timers [((W)w)->active - 1] = timers [timercnt]; |
2144 | timers [active] = timers [timercnt + HEAP0]; |
1182 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
2145 | adjustheap (timers, timercnt, active); |
1183 | } |
2146 | } |
|
|
2147 | } |
1184 | |
2148 | |
1185 | ((WT)w)->at = w->repeat; |
2149 | EV_FREQUENT_CHECK; |
|
|
2150 | |
|
|
2151 | ev_at (w) -= mn_now; |
1186 | |
2152 | |
1187 | ev_stop (EV_A_ (W)w); |
2153 | ev_stop (EV_A_ (W)w); |
1188 | } |
2154 | } |
1189 | |
2155 | |
1190 | void |
2156 | void noinline |
1191 | ev_timer_again (EV_P_ struct ev_timer *w) |
2157 | ev_timer_again (EV_P_ ev_timer *w) |
1192 | { |
2158 | { |
|
|
2159 | EV_FREQUENT_CHECK; |
|
|
2160 | |
1193 | if (ev_is_active (w)) |
2161 | if (ev_is_active (w)) |
1194 | { |
2162 | { |
1195 | if (w->repeat) |
2163 | if (w->repeat) |
1196 | { |
2164 | { |
1197 | ((WT)w)->at = mn_now + w->repeat; |
2165 | ev_at (w) = mn_now + w->repeat; |
1198 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
2166 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
2167 | adjustheap (timers, timercnt, ev_active (w)); |
1199 | } |
2168 | } |
1200 | else |
2169 | else |
1201 | ev_timer_stop (EV_A_ w); |
2170 | ev_timer_stop (EV_A_ w); |
1202 | } |
2171 | } |
1203 | else if (w->repeat) |
2172 | else if (w->repeat) |
|
|
2173 | { |
|
|
2174 | ev_at (w) = w->repeat; |
1204 | ev_timer_start (EV_A_ w); |
2175 | ev_timer_start (EV_A_ w); |
1205 | } |
2176 | } |
1206 | |
2177 | |
1207 | void |
2178 | EV_FREQUENT_CHECK; |
|
|
2179 | } |
|
|
2180 | |
|
|
2181 | #if EV_PERIODIC_ENABLE |
|
|
2182 | void noinline |
1208 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
2183 | ev_periodic_start (EV_P_ ev_periodic *w) |
1209 | { |
2184 | { |
1210 | if (ev_is_active (w)) |
2185 | if (expect_false (ev_is_active (w))) |
1211 | return; |
2186 | return; |
1212 | |
2187 | |
|
|
2188 | if (w->reschedule_cb) |
|
|
2189 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2190 | else if (w->interval) |
|
|
2191 | { |
1213 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2192 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1214 | |
|
|
1215 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2193 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1216 | if (w->interval) |
|
|
1217 | ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
2194 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2195 | } |
|
|
2196 | else |
|
|
2197 | ev_at (w) = w->offset; |
1218 | |
2198 | |
|
|
2199 | EV_FREQUENT_CHECK; |
|
|
2200 | |
|
|
2201 | ++periodiccnt; |
1219 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2202 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
1220 | array_needsize (periodics, periodicmax, periodiccnt, ); |
2203 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1221 | periodics [periodiccnt - 1] = w; |
2204 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1222 | upheap ((WT *)periodics, periodiccnt - 1); |
2205 | ANHE_at_cache (periodics [ev_active (w)]); |
|
|
2206 | upheap (periodics, ev_active (w)); |
1223 | |
2207 | |
|
|
2208 | EV_FREQUENT_CHECK; |
|
|
2209 | |
1224 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
2210 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1225 | } |
2211 | } |
1226 | |
2212 | |
1227 | void |
2213 | void noinline |
1228 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
2214 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1229 | { |
2215 | { |
1230 | ev_clear_pending (EV_A_ (W)w); |
2216 | clear_pending (EV_A_ (W)w); |
1231 | if (!ev_is_active (w)) |
2217 | if (expect_false (!ev_is_active (w))) |
1232 | return; |
2218 | return; |
1233 | |
2219 | |
|
|
2220 | EV_FREQUENT_CHECK; |
|
|
2221 | |
|
|
2222 | { |
|
|
2223 | int active = ev_active (w); |
|
|
2224 | |
1234 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
2225 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
1235 | |
2226 | |
1236 | if (((W)w)->active < periodiccnt--) |
2227 | --periodiccnt; |
|
|
2228 | |
|
|
2229 | if (expect_true (active < periodiccnt + HEAP0)) |
1237 | { |
2230 | { |
1238 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
2231 | periodics [active] = periodics [periodiccnt + HEAP0]; |
1239 | downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
2232 | adjustheap (periodics, periodiccnt, active); |
1240 | } |
2233 | } |
|
|
2234 | } |
|
|
2235 | |
|
|
2236 | EV_FREQUENT_CHECK; |
1241 | |
2237 | |
1242 | ev_stop (EV_A_ (W)w); |
2238 | ev_stop (EV_A_ (W)w); |
1243 | } |
2239 | } |
1244 | |
2240 | |
1245 | void |
2241 | void noinline |
1246 | ev_idle_start (EV_P_ struct ev_idle *w) |
2242 | ev_periodic_again (EV_P_ ev_periodic *w) |
1247 | { |
2243 | { |
1248 | if (ev_is_active (w)) |
2244 | /* TODO: use adjustheap and recalculation */ |
1249 | return; |
|
|
1250 | |
|
|
1251 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1252 | array_needsize (idles, idlemax, idlecnt, ); |
|
|
1253 | idles [idlecnt - 1] = w; |
|
|
1254 | } |
|
|
1255 | |
|
|
1256 | void |
|
|
1257 | ev_idle_stop (EV_P_ struct ev_idle *w) |
|
|
1258 | { |
|
|
1259 | ev_clear_pending (EV_A_ (W)w); |
|
|
1260 | if (ev_is_active (w)) |
|
|
1261 | return; |
|
|
1262 | |
|
|
1263 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
|
|
1264 | ev_stop (EV_A_ (W)w); |
2245 | ev_periodic_stop (EV_A_ w); |
|
|
2246 | ev_periodic_start (EV_A_ w); |
1265 | } |
2247 | } |
1266 | |
2248 | #endif |
1267 | void |
|
|
1268 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
|
|
1269 | { |
|
|
1270 | if (ev_is_active (w)) |
|
|
1271 | return; |
|
|
1272 | |
|
|
1273 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1274 | array_needsize (prepares, preparemax, preparecnt, ); |
|
|
1275 | prepares [preparecnt - 1] = w; |
|
|
1276 | } |
|
|
1277 | |
|
|
1278 | void |
|
|
1279 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
|
|
1280 | { |
|
|
1281 | ev_clear_pending (EV_A_ (W)w); |
|
|
1282 | if (ev_is_active (w)) |
|
|
1283 | return; |
|
|
1284 | |
|
|
1285 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
|
|
1286 | ev_stop (EV_A_ (W)w); |
|
|
1287 | } |
|
|
1288 | |
|
|
1289 | void |
|
|
1290 | ev_check_start (EV_P_ struct ev_check *w) |
|
|
1291 | { |
|
|
1292 | if (ev_is_active (w)) |
|
|
1293 | return; |
|
|
1294 | |
|
|
1295 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1296 | array_needsize (checks, checkmax, checkcnt, ); |
|
|
1297 | checks [checkcnt - 1] = w; |
|
|
1298 | } |
|
|
1299 | |
|
|
1300 | void |
|
|
1301 | ev_check_stop (EV_P_ struct ev_check *w) |
|
|
1302 | { |
|
|
1303 | ev_clear_pending (EV_A_ (W)w); |
|
|
1304 | if (ev_is_active (w)) |
|
|
1305 | return; |
|
|
1306 | |
|
|
1307 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
|
|
1308 | ev_stop (EV_A_ (W)w); |
|
|
1309 | } |
|
|
1310 | |
2249 | |
1311 | #ifndef SA_RESTART |
2250 | #ifndef SA_RESTART |
1312 | # define SA_RESTART 0 |
2251 | # define SA_RESTART 0 |
1313 | #endif |
2252 | #endif |
1314 | |
2253 | |
1315 | void |
2254 | void noinline |
1316 | ev_signal_start (EV_P_ struct ev_signal *w) |
2255 | ev_signal_start (EV_P_ ev_signal *w) |
1317 | { |
2256 | { |
1318 | #if EV_MULTIPLICITY |
2257 | #if EV_MULTIPLICITY |
1319 | assert (("signal watchers are only supported in the default loop", loop == default_loop)); |
2258 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1320 | #endif |
2259 | #endif |
1321 | if (ev_is_active (w)) |
2260 | if (expect_false (ev_is_active (w))) |
1322 | return; |
2261 | return; |
1323 | |
2262 | |
1324 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2263 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1325 | |
2264 | |
|
|
2265 | evpipe_init (EV_A); |
|
|
2266 | |
|
|
2267 | EV_FREQUENT_CHECK; |
|
|
2268 | |
|
|
2269 | { |
|
|
2270 | #ifndef _WIN32 |
|
|
2271 | sigset_t full, prev; |
|
|
2272 | sigfillset (&full); |
|
|
2273 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2274 | #endif |
|
|
2275 | |
|
|
2276 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
2277 | |
|
|
2278 | #ifndef _WIN32 |
|
|
2279 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
2280 | #endif |
|
|
2281 | } |
|
|
2282 | |
1326 | ev_start (EV_A_ (W)w, 1); |
2283 | ev_start (EV_A_ (W)w, 1); |
1327 | array_needsize (signals, signalmax, w->signum, signals_init); |
|
|
1328 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
2284 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1329 | |
2285 | |
1330 | if (!((WL)w)->next) |
2286 | if (!((WL)w)->next) |
1331 | { |
2287 | { |
1332 | #if WIN32 |
2288 | #if _WIN32 |
1333 | signal (w->signum, sighandler); |
2289 | signal (w->signum, ev_sighandler); |
1334 | #else |
2290 | #else |
1335 | struct sigaction sa; |
2291 | struct sigaction sa; |
1336 | sa.sa_handler = sighandler; |
2292 | sa.sa_handler = ev_sighandler; |
1337 | sigfillset (&sa.sa_mask); |
2293 | sigfillset (&sa.sa_mask); |
1338 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2294 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1339 | sigaction (w->signum, &sa, 0); |
2295 | sigaction (w->signum, &sa, 0); |
1340 | #endif |
2296 | #endif |
1341 | } |
2297 | } |
1342 | } |
|
|
1343 | |
2298 | |
1344 | void |
2299 | EV_FREQUENT_CHECK; |
|
|
2300 | } |
|
|
2301 | |
|
|
2302 | void noinline |
1345 | ev_signal_stop (EV_P_ struct ev_signal *w) |
2303 | ev_signal_stop (EV_P_ ev_signal *w) |
1346 | { |
2304 | { |
1347 | ev_clear_pending (EV_A_ (W)w); |
2305 | clear_pending (EV_A_ (W)w); |
1348 | if (!ev_is_active (w)) |
2306 | if (expect_false (!ev_is_active (w))) |
1349 | return; |
2307 | return; |
1350 | |
2308 | |
|
|
2309 | EV_FREQUENT_CHECK; |
|
|
2310 | |
1351 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
2311 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1352 | ev_stop (EV_A_ (W)w); |
2312 | ev_stop (EV_A_ (W)w); |
1353 | |
2313 | |
1354 | if (!signals [w->signum - 1].head) |
2314 | if (!signals [w->signum - 1].head) |
1355 | signal (w->signum, SIG_DFL); |
2315 | signal (w->signum, SIG_DFL); |
1356 | } |
|
|
1357 | |
2316 | |
|
|
2317 | EV_FREQUENT_CHECK; |
|
|
2318 | } |
|
|
2319 | |
1358 | void |
2320 | void |
1359 | ev_child_start (EV_P_ struct ev_child *w) |
2321 | ev_child_start (EV_P_ ev_child *w) |
1360 | { |
2322 | { |
1361 | #if EV_MULTIPLICITY |
2323 | #if EV_MULTIPLICITY |
1362 | assert (("child watchers are only supported in the default loop", loop == default_loop)); |
2324 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1363 | #endif |
2325 | #endif |
1364 | if (ev_is_active (w)) |
2326 | if (expect_false (ev_is_active (w))) |
1365 | return; |
2327 | return; |
1366 | |
2328 | |
|
|
2329 | EV_FREQUENT_CHECK; |
|
|
2330 | |
1367 | ev_start (EV_A_ (W)w, 1); |
2331 | ev_start (EV_A_ (W)w, 1); |
1368 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
2332 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1369 | } |
|
|
1370 | |
2333 | |
|
|
2334 | EV_FREQUENT_CHECK; |
|
|
2335 | } |
|
|
2336 | |
1371 | void |
2337 | void |
1372 | ev_child_stop (EV_P_ struct ev_child *w) |
2338 | ev_child_stop (EV_P_ ev_child *w) |
1373 | { |
2339 | { |
1374 | ev_clear_pending (EV_A_ (W)w); |
2340 | clear_pending (EV_A_ (W)w); |
1375 | if (ev_is_active (w)) |
2341 | if (expect_false (!ev_is_active (w))) |
1376 | return; |
2342 | return; |
1377 | |
2343 | |
|
|
2344 | EV_FREQUENT_CHECK; |
|
|
2345 | |
1378 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
2346 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1379 | ev_stop (EV_A_ (W)w); |
2347 | ev_stop (EV_A_ (W)w); |
|
|
2348 | |
|
|
2349 | EV_FREQUENT_CHECK; |
1380 | } |
2350 | } |
|
|
2351 | |
|
|
2352 | #if EV_STAT_ENABLE |
|
|
2353 | |
|
|
2354 | # ifdef _WIN32 |
|
|
2355 | # undef lstat |
|
|
2356 | # define lstat(a,b) _stati64 (a,b) |
|
|
2357 | # endif |
|
|
2358 | |
|
|
2359 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2360 | #define MIN_STAT_INTERVAL 0.1074891 |
|
|
2361 | |
|
|
2362 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
|
|
2363 | |
|
|
2364 | #if EV_USE_INOTIFY |
|
|
2365 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
2366 | |
|
|
2367 | static void noinline |
|
|
2368 | infy_add (EV_P_ ev_stat *w) |
|
|
2369 | { |
|
|
2370 | 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); |
|
|
2371 | |
|
|
2372 | if (w->wd < 0) |
|
|
2373 | { |
|
|
2374 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2375 | |
|
|
2376 | /* monitor some parent directory for speedup hints */ |
|
|
2377 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
|
|
2378 | /* but an efficiency issue only */ |
|
|
2379 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
|
|
2380 | { |
|
|
2381 | char path [4096]; |
|
|
2382 | strcpy (path, w->path); |
|
|
2383 | |
|
|
2384 | do |
|
|
2385 | { |
|
|
2386 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
|
|
2387 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
|
|
2388 | |
|
|
2389 | char *pend = strrchr (path, '/'); |
|
|
2390 | |
|
|
2391 | if (!pend) |
|
|
2392 | break; /* whoops, no '/', complain to your admin */ |
|
|
2393 | |
|
|
2394 | *pend = 0; |
|
|
2395 | w->wd = inotify_add_watch (fs_fd, path, mask); |
|
|
2396 | } |
|
|
2397 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
|
|
2398 | } |
|
|
2399 | } |
|
|
2400 | else |
|
|
2401 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2402 | |
|
|
2403 | if (w->wd >= 0) |
|
|
2404 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2405 | } |
|
|
2406 | |
|
|
2407 | static void noinline |
|
|
2408 | infy_del (EV_P_ ev_stat *w) |
|
|
2409 | { |
|
|
2410 | int slot; |
|
|
2411 | int wd = w->wd; |
|
|
2412 | |
|
|
2413 | if (wd < 0) |
|
|
2414 | return; |
|
|
2415 | |
|
|
2416 | w->wd = -2; |
|
|
2417 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
|
|
2418 | wlist_del (&fs_hash [slot].head, (WL)w); |
|
|
2419 | |
|
|
2420 | /* remove this watcher, if others are watching it, they will rearm */ |
|
|
2421 | inotify_rm_watch (fs_fd, wd); |
|
|
2422 | } |
|
|
2423 | |
|
|
2424 | static void noinline |
|
|
2425 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
|
|
2426 | { |
|
|
2427 | if (slot < 0) |
|
|
2428 | /* overflow, need to check for all hahs slots */ |
|
|
2429 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2430 | infy_wd (EV_A_ slot, wd, ev); |
|
|
2431 | else |
|
|
2432 | { |
|
|
2433 | WL w_; |
|
|
2434 | |
|
|
2435 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
|
|
2436 | { |
|
|
2437 | ev_stat *w = (ev_stat *)w_; |
|
|
2438 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
|
|
2439 | |
|
|
2440 | if (w->wd == wd || wd == -1) |
|
|
2441 | { |
|
|
2442 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
|
|
2443 | { |
|
|
2444 | w->wd = -1; |
|
|
2445 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2446 | } |
|
|
2447 | |
|
|
2448 | stat_timer_cb (EV_A_ &w->timer, 0); |
|
|
2449 | } |
|
|
2450 | } |
|
|
2451 | } |
|
|
2452 | } |
|
|
2453 | |
|
|
2454 | static void |
|
|
2455 | infy_cb (EV_P_ ev_io *w, int revents) |
|
|
2456 | { |
|
|
2457 | char buf [EV_INOTIFY_BUFSIZE]; |
|
|
2458 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2459 | int ofs; |
|
|
2460 | int len = read (fs_fd, buf, sizeof (buf)); |
|
|
2461 | |
|
|
2462 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
|
|
2463 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
2464 | } |
|
|
2465 | |
|
|
2466 | void inline_size |
|
|
2467 | infy_init (EV_P) |
|
|
2468 | { |
|
|
2469 | if (fs_fd != -2) |
|
|
2470 | return; |
|
|
2471 | |
|
|
2472 | fs_fd = inotify_init (); |
|
|
2473 | |
|
|
2474 | if (fs_fd >= 0) |
|
|
2475 | { |
|
|
2476 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
|
|
2477 | ev_set_priority (&fs_w, EV_MAXPRI); |
|
|
2478 | ev_io_start (EV_A_ &fs_w); |
|
|
2479 | } |
|
|
2480 | } |
|
|
2481 | |
|
|
2482 | void inline_size |
|
|
2483 | infy_fork (EV_P) |
|
|
2484 | { |
|
|
2485 | int slot; |
|
|
2486 | |
|
|
2487 | if (fs_fd < 0) |
|
|
2488 | return; |
|
|
2489 | |
|
|
2490 | close (fs_fd); |
|
|
2491 | fs_fd = inotify_init (); |
|
|
2492 | |
|
|
2493 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2494 | { |
|
|
2495 | WL w_ = fs_hash [slot].head; |
|
|
2496 | fs_hash [slot].head = 0; |
|
|
2497 | |
|
|
2498 | while (w_) |
|
|
2499 | { |
|
|
2500 | ev_stat *w = (ev_stat *)w_; |
|
|
2501 | w_ = w_->next; /* lets us add this watcher */ |
|
|
2502 | |
|
|
2503 | w->wd = -1; |
|
|
2504 | |
|
|
2505 | if (fs_fd >= 0) |
|
|
2506 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2507 | else |
|
|
2508 | ev_timer_start (EV_A_ &w->timer); |
|
|
2509 | } |
|
|
2510 | |
|
|
2511 | } |
|
|
2512 | } |
|
|
2513 | |
|
|
2514 | #endif |
|
|
2515 | |
|
|
2516 | void |
|
|
2517 | ev_stat_stat (EV_P_ ev_stat *w) |
|
|
2518 | { |
|
|
2519 | if (lstat (w->path, &w->attr) < 0) |
|
|
2520 | w->attr.st_nlink = 0; |
|
|
2521 | else if (!w->attr.st_nlink) |
|
|
2522 | w->attr.st_nlink = 1; |
|
|
2523 | } |
|
|
2524 | |
|
|
2525 | static void noinline |
|
|
2526 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
2527 | { |
|
|
2528 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
2529 | |
|
|
2530 | /* we copy this here each the time so that */ |
|
|
2531 | /* prev has the old value when the callback gets invoked */ |
|
|
2532 | w->prev = w->attr; |
|
|
2533 | ev_stat_stat (EV_A_ w); |
|
|
2534 | |
|
|
2535 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
|
|
2536 | if ( |
|
|
2537 | w->prev.st_dev != w->attr.st_dev |
|
|
2538 | || w->prev.st_ino != w->attr.st_ino |
|
|
2539 | || w->prev.st_mode != w->attr.st_mode |
|
|
2540 | || w->prev.st_nlink != w->attr.st_nlink |
|
|
2541 | || w->prev.st_uid != w->attr.st_uid |
|
|
2542 | || w->prev.st_gid != w->attr.st_gid |
|
|
2543 | || w->prev.st_rdev != w->attr.st_rdev |
|
|
2544 | || w->prev.st_size != w->attr.st_size |
|
|
2545 | || w->prev.st_atime != w->attr.st_atime |
|
|
2546 | || w->prev.st_mtime != w->attr.st_mtime |
|
|
2547 | || w->prev.st_ctime != w->attr.st_ctime |
|
|
2548 | ) { |
|
|
2549 | #if EV_USE_INOTIFY |
|
|
2550 | infy_del (EV_A_ w); |
|
|
2551 | infy_add (EV_A_ w); |
|
|
2552 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2553 | #endif |
|
|
2554 | |
|
|
2555 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
2556 | } |
|
|
2557 | } |
|
|
2558 | |
|
|
2559 | void |
|
|
2560 | ev_stat_start (EV_P_ ev_stat *w) |
|
|
2561 | { |
|
|
2562 | if (expect_false (ev_is_active (w))) |
|
|
2563 | return; |
|
|
2564 | |
|
|
2565 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2566 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2567 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2568 | |
|
|
2569 | ev_stat_stat (EV_A_ w); |
|
|
2570 | |
|
|
2571 | if (w->interval < MIN_STAT_INTERVAL) |
|
|
2572 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2573 | |
|
|
2574 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
|
|
2575 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
2576 | |
|
|
2577 | #if EV_USE_INOTIFY |
|
|
2578 | infy_init (EV_A); |
|
|
2579 | |
|
|
2580 | if (fs_fd >= 0) |
|
|
2581 | infy_add (EV_A_ w); |
|
|
2582 | else |
|
|
2583 | #endif |
|
|
2584 | ev_timer_start (EV_A_ &w->timer); |
|
|
2585 | |
|
|
2586 | ev_start (EV_A_ (W)w, 1); |
|
|
2587 | |
|
|
2588 | EV_FREQUENT_CHECK; |
|
|
2589 | } |
|
|
2590 | |
|
|
2591 | void |
|
|
2592 | ev_stat_stop (EV_P_ ev_stat *w) |
|
|
2593 | { |
|
|
2594 | clear_pending (EV_A_ (W)w); |
|
|
2595 | if (expect_false (!ev_is_active (w))) |
|
|
2596 | return; |
|
|
2597 | |
|
|
2598 | EV_FREQUENT_CHECK; |
|
|
2599 | |
|
|
2600 | #if EV_USE_INOTIFY |
|
|
2601 | infy_del (EV_A_ w); |
|
|
2602 | #endif |
|
|
2603 | ev_timer_stop (EV_A_ &w->timer); |
|
|
2604 | |
|
|
2605 | ev_stop (EV_A_ (W)w); |
|
|
2606 | |
|
|
2607 | EV_FREQUENT_CHECK; |
|
|
2608 | } |
|
|
2609 | #endif |
|
|
2610 | |
|
|
2611 | #if EV_IDLE_ENABLE |
|
|
2612 | void |
|
|
2613 | ev_idle_start (EV_P_ ev_idle *w) |
|
|
2614 | { |
|
|
2615 | if (expect_false (ev_is_active (w))) |
|
|
2616 | return; |
|
|
2617 | |
|
|
2618 | pri_adjust (EV_A_ (W)w); |
|
|
2619 | |
|
|
2620 | EV_FREQUENT_CHECK; |
|
|
2621 | |
|
|
2622 | { |
|
|
2623 | int active = ++idlecnt [ABSPRI (w)]; |
|
|
2624 | |
|
|
2625 | ++idleall; |
|
|
2626 | ev_start (EV_A_ (W)w, active); |
|
|
2627 | |
|
|
2628 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
|
|
2629 | idles [ABSPRI (w)][active - 1] = w; |
|
|
2630 | } |
|
|
2631 | |
|
|
2632 | EV_FREQUENT_CHECK; |
|
|
2633 | } |
|
|
2634 | |
|
|
2635 | void |
|
|
2636 | ev_idle_stop (EV_P_ ev_idle *w) |
|
|
2637 | { |
|
|
2638 | clear_pending (EV_A_ (W)w); |
|
|
2639 | if (expect_false (!ev_is_active (w))) |
|
|
2640 | return; |
|
|
2641 | |
|
|
2642 | EV_FREQUENT_CHECK; |
|
|
2643 | |
|
|
2644 | { |
|
|
2645 | int active = ev_active (w); |
|
|
2646 | |
|
|
2647 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
|
|
2648 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
|
|
2649 | |
|
|
2650 | ev_stop (EV_A_ (W)w); |
|
|
2651 | --idleall; |
|
|
2652 | } |
|
|
2653 | |
|
|
2654 | EV_FREQUENT_CHECK; |
|
|
2655 | } |
|
|
2656 | #endif |
|
|
2657 | |
|
|
2658 | void |
|
|
2659 | ev_prepare_start (EV_P_ ev_prepare *w) |
|
|
2660 | { |
|
|
2661 | if (expect_false (ev_is_active (w))) |
|
|
2662 | return; |
|
|
2663 | |
|
|
2664 | EV_FREQUENT_CHECK; |
|
|
2665 | |
|
|
2666 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
2667 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
|
|
2668 | prepares [preparecnt - 1] = w; |
|
|
2669 | |
|
|
2670 | EV_FREQUENT_CHECK; |
|
|
2671 | } |
|
|
2672 | |
|
|
2673 | void |
|
|
2674 | ev_prepare_stop (EV_P_ ev_prepare *w) |
|
|
2675 | { |
|
|
2676 | clear_pending (EV_A_ (W)w); |
|
|
2677 | if (expect_false (!ev_is_active (w))) |
|
|
2678 | return; |
|
|
2679 | |
|
|
2680 | EV_FREQUENT_CHECK; |
|
|
2681 | |
|
|
2682 | { |
|
|
2683 | int active = ev_active (w); |
|
|
2684 | |
|
|
2685 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
2686 | ev_active (prepares [active - 1]) = active; |
|
|
2687 | } |
|
|
2688 | |
|
|
2689 | ev_stop (EV_A_ (W)w); |
|
|
2690 | |
|
|
2691 | EV_FREQUENT_CHECK; |
|
|
2692 | } |
|
|
2693 | |
|
|
2694 | void |
|
|
2695 | ev_check_start (EV_P_ ev_check *w) |
|
|
2696 | { |
|
|
2697 | if (expect_false (ev_is_active (w))) |
|
|
2698 | return; |
|
|
2699 | |
|
|
2700 | EV_FREQUENT_CHECK; |
|
|
2701 | |
|
|
2702 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
2703 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
|
|
2704 | checks [checkcnt - 1] = w; |
|
|
2705 | |
|
|
2706 | EV_FREQUENT_CHECK; |
|
|
2707 | } |
|
|
2708 | |
|
|
2709 | void |
|
|
2710 | ev_check_stop (EV_P_ ev_check *w) |
|
|
2711 | { |
|
|
2712 | clear_pending (EV_A_ (W)w); |
|
|
2713 | if (expect_false (!ev_is_active (w))) |
|
|
2714 | return; |
|
|
2715 | |
|
|
2716 | EV_FREQUENT_CHECK; |
|
|
2717 | |
|
|
2718 | { |
|
|
2719 | int active = ev_active (w); |
|
|
2720 | |
|
|
2721 | checks [active - 1] = checks [--checkcnt]; |
|
|
2722 | ev_active (checks [active - 1]) = active; |
|
|
2723 | } |
|
|
2724 | |
|
|
2725 | ev_stop (EV_A_ (W)w); |
|
|
2726 | |
|
|
2727 | EV_FREQUENT_CHECK; |
|
|
2728 | } |
|
|
2729 | |
|
|
2730 | #if EV_EMBED_ENABLE |
|
|
2731 | void noinline |
|
|
2732 | ev_embed_sweep (EV_P_ ev_embed *w) |
|
|
2733 | { |
|
|
2734 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2735 | } |
|
|
2736 | |
|
|
2737 | static void |
|
|
2738 | embed_io_cb (EV_P_ ev_io *io, int revents) |
|
|
2739 | { |
|
|
2740 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
|
|
2741 | |
|
|
2742 | if (ev_cb (w)) |
|
|
2743 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
|
|
2744 | else |
|
|
2745 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2746 | } |
|
|
2747 | |
|
|
2748 | static void |
|
|
2749 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
2750 | { |
|
|
2751 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
2752 | |
|
|
2753 | { |
|
|
2754 | struct ev_loop *loop = w->other; |
|
|
2755 | |
|
|
2756 | while (fdchangecnt) |
|
|
2757 | { |
|
|
2758 | fd_reify (EV_A); |
|
|
2759 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2760 | } |
|
|
2761 | } |
|
|
2762 | } |
|
|
2763 | |
|
|
2764 | #if 0 |
|
|
2765 | static void |
|
|
2766 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
2767 | { |
|
|
2768 | ev_idle_stop (EV_A_ idle); |
|
|
2769 | } |
|
|
2770 | #endif |
|
|
2771 | |
|
|
2772 | void |
|
|
2773 | ev_embed_start (EV_P_ ev_embed *w) |
|
|
2774 | { |
|
|
2775 | if (expect_false (ev_is_active (w))) |
|
|
2776 | return; |
|
|
2777 | |
|
|
2778 | { |
|
|
2779 | struct ev_loop *loop = w->other; |
|
|
2780 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
|
|
2781 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
|
|
2782 | } |
|
|
2783 | |
|
|
2784 | EV_FREQUENT_CHECK; |
|
|
2785 | |
|
|
2786 | ev_set_priority (&w->io, ev_priority (w)); |
|
|
2787 | ev_io_start (EV_A_ &w->io); |
|
|
2788 | |
|
|
2789 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
2790 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
2791 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
2792 | |
|
|
2793 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
2794 | |
|
|
2795 | ev_start (EV_A_ (W)w, 1); |
|
|
2796 | |
|
|
2797 | EV_FREQUENT_CHECK; |
|
|
2798 | } |
|
|
2799 | |
|
|
2800 | void |
|
|
2801 | ev_embed_stop (EV_P_ ev_embed *w) |
|
|
2802 | { |
|
|
2803 | clear_pending (EV_A_ (W)w); |
|
|
2804 | if (expect_false (!ev_is_active (w))) |
|
|
2805 | return; |
|
|
2806 | |
|
|
2807 | EV_FREQUENT_CHECK; |
|
|
2808 | |
|
|
2809 | ev_io_stop (EV_A_ &w->io); |
|
|
2810 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
2811 | |
|
|
2812 | ev_stop (EV_A_ (W)w); |
|
|
2813 | |
|
|
2814 | EV_FREQUENT_CHECK; |
|
|
2815 | } |
|
|
2816 | #endif |
|
|
2817 | |
|
|
2818 | #if EV_FORK_ENABLE |
|
|
2819 | void |
|
|
2820 | ev_fork_start (EV_P_ ev_fork *w) |
|
|
2821 | { |
|
|
2822 | if (expect_false (ev_is_active (w))) |
|
|
2823 | return; |
|
|
2824 | |
|
|
2825 | EV_FREQUENT_CHECK; |
|
|
2826 | |
|
|
2827 | ev_start (EV_A_ (W)w, ++forkcnt); |
|
|
2828 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
|
|
2829 | forks [forkcnt - 1] = w; |
|
|
2830 | |
|
|
2831 | EV_FREQUENT_CHECK; |
|
|
2832 | } |
|
|
2833 | |
|
|
2834 | void |
|
|
2835 | ev_fork_stop (EV_P_ ev_fork *w) |
|
|
2836 | { |
|
|
2837 | clear_pending (EV_A_ (W)w); |
|
|
2838 | if (expect_false (!ev_is_active (w))) |
|
|
2839 | return; |
|
|
2840 | |
|
|
2841 | EV_FREQUENT_CHECK; |
|
|
2842 | |
|
|
2843 | { |
|
|
2844 | int active = ev_active (w); |
|
|
2845 | |
|
|
2846 | forks [active - 1] = forks [--forkcnt]; |
|
|
2847 | ev_active (forks [active - 1]) = active; |
|
|
2848 | } |
|
|
2849 | |
|
|
2850 | ev_stop (EV_A_ (W)w); |
|
|
2851 | |
|
|
2852 | EV_FREQUENT_CHECK; |
|
|
2853 | } |
|
|
2854 | #endif |
|
|
2855 | |
|
|
2856 | #if EV_ASYNC_ENABLE |
|
|
2857 | void |
|
|
2858 | ev_async_start (EV_P_ ev_async *w) |
|
|
2859 | { |
|
|
2860 | if (expect_false (ev_is_active (w))) |
|
|
2861 | return; |
|
|
2862 | |
|
|
2863 | evpipe_init (EV_A); |
|
|
2864 | |
|
|
2865 | EV_FREQUENT_CHECK; |
|
|
2866 | |
|
|
2867 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
2868 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
2869 | asyncs [asynccnt - 1] = w; |
|
|
2870 | |
|
|
2871 | EV_FREQUENT_CHECK; |
|
|
2872 | } |
|
|
2873 | |
|
|
2874 | void |
|
|
2875 | ev_async_stop (EV_P_ ev_async *w) |
|
|
2876 | { |
|
|
2877 | clear_pending (EV_A_ (W)w); |
|
|
2878 | if (expect_false (!ev_is_active (w))) |
|
|
2879 | return; |
|
|
2880 | |
|
|
2881 | EV_FREQUENT_CHECK; |
|
|
2882 | |
|
|
2883 | { |
|
|
2884 | int active = ev_active (w); |
|
|
2885 | |
|
|
2886 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
2887 | ev_active (asyncs [active - 1]) = active; |
|
|
2888 | } |
|
|
2889 | |
|
|
2890 | ev_stop (EV_A_ (W)w); |
|
|
2891 | |
|
|
2892 | EV_FREQUENT_CHECK; |
|
|
2893 | } |
|
|
2894 | |
|
|
2895 | void |
|
|
2896 | ev_async_send (EV_P_ ev_async *w) |
|
|
2897 | { |
|
|
2898 | w->sent = 1; |
|
|
2899 | evpipe_write (EV_A_ &gotasync); |
|
|
2900 | } |
|
|
2901 | #endif |
1381 | |
2902 | |
1382 | /*****************************************************************************/ |
2903 | /*****************************************************************************/ |
1383 | |
2904 | |
1384 | struct ev_once |
2905 | struct ev_once |
1385 | { |
2906 | { |
1386 | struct ev_io io; |
2907 | ev_io io; |
1387 | struct ev_timer to; |
2908 | ev_timer to; |
1388 | void (*cb)(int revents, void *arg); |
2909 | void (*cb)(int revents, void *arg); |
1389 | void *arg; |
2910 | void *arg; |
1390 | }; |
2911 | }; |
1391 | |
2912 | |
1392 | static void |
2913 | static void |
… | |
… | |
1395 | void (*cb)(int revents, void *arg) = once->cb; |
2916 | void (*cb)(int revents, void *arg) = once->cb; |
1396 | void *arg = once->arg; |
2917 | void *arg = once->arg; |
1397 | |
2918 | |
1398 | ev_io_stop (EV_A_ &once->io); |
2919 | ev_io_stop (EV_A_ &once->io); |
1399 | ev_timer_stop (EV_A_ &once->to); |
2920 | ev_timer_stop (EV_A_ &once->to); |
1400 | free (once); |
2921 | ev_free (once); |
1401 | |
2922 | |
1402 | cb (revents, arg); |
2923 | cb (revents, arg); |
1403 | } |
2924 | } |
1404 | |
2925 | |
1405 | static void |
2926 | static void |
1406 | once_cb_io (EV_P_ struct ev_io *w, int revents) |
2927 | once_cb_io (EV_P_ ev_io *w, int revents) |
1407 | { |
2928 | { |
1408 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
2929 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1409 | } |
2930 | } |
1410 | |
2931 | |
1411 | static void |
2932 | static void |
1412 | once_cb_to (EV_P_ struct ev_timer *w, int revents) |
2933 | once_cb_to (EV_P_ ev_timer *w, int revents) |
1413 | { |
2934 | { |
1414 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
2935 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1415 | } |
2936 | } |
1416 | |
2937 | |
1417 | void |
2938 | void |
1418 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2939 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1419 | { |
2940 | { |
1420 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
2941 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1421 | |
2942 | |
1422 | if (!once) |
2943 | if (expect_false (!once)) |
|
|
2944 | { |
1423 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
2945 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1424 | else |
2946 | return; |
1425 | { |
2947 | } |
|
|
2948 | |
1426 | once->cb = cb; |
2949 | once->cb = cb; |
1427 | once->arg = arg; |
2950 | once->arg = arg; |
1428 | |
2951 | |
1429 | ev_watcher_init (&once->io, once_cb_io); |
2952 | ev_init (&once->io, once_cb_io); |
1430 | if (fd >= 0) |
2953 | if (fd >= 0) |
1431 | { |
2954 | { |
1432 | ev_io_set (&once->io, fd, events); |
2955 | ev_io_set (&once->io, fd, events); |
1433 | ev_io_start (EV_A_ &once->io); |
2956 | ev_io_start (EV_A_ &once->io); |
1434 | } |
2957 | } |
1435 | |
2958 | |
1436 | ev_watcher_init (&once->to, once_cb_to); |
2959 | ev_init (&once->to, once_cb_to); |
1437 | if (timeout >= 0.) |
2960 | if (timeout >= 0.) |
1438 | { |
2961 | { |
1439 | ev_timer_set (&once->to, timeout, 0.); |
2962 | ev_timer_set (&once->to, timeout, 0.); |
1440 | ev_timer_start (EV_A_ &once->to); |
2963 | ev_timer_start (EV_A_ &once->to); |
1441 | } |
|
|
1442 | } |
2964 | } |
1443 | } |
2965 | } |
1444 | |
2966 | |
|
|
2967 | #if EV_MULTIPLICITY |
|
|
2968 | #include "ev_wrap.h" |
|
|
2969 | #endif |
|
|
2970 | |
|
|
2971 | #ifdef __cplusplus |
|
|
2972 | } |
|
|
2973 | #endif |
|
|
2974 | |