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 | */ |
31 | |
39 | |
32 | #ifdef __cplusplus |
40 | #ifdef __cplusplus |
33 | extern "C" { |
41 | extern "C" { |
34 | #endif |
42 | #endif |
35 | |
43 | |
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44 | /* this big block deduces configuration from config.h */ |
36 | #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 |
37 | # include "config.h" |
49 | # include "config.h" |
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50 | # endif |
38 | |
51 | |
39 | # if HAVE_CLOCK_GETTIME |
52 | # if HAVE_CLOCK_GETTIME |
40 | # ifndef EV_USE_MONOTONIC |
53 | # ifndef EV_USE_MONOTONIC |
41 | # define EV_USE_MONOTONIC 1 |
54 | # define EV_USE_MONOTONIC 1 |
42 | # endif |
55 | # endif |
… | |
… | |
50 | # ifndef EV_USE_REALTIME |
63 | # ifndef EV_USE_REALTIME |
51 | # define EV_USE_REALTIME 0 |
64 | # define EV_USE_REALTIME 0 |
52 | # endif |
65 | # endif |
53 | # endif |
66 | # endif |
54 | |
67 | |
55 | # if HAVE_SELECT && HAVE_SYS_SELECT_H && !defined (EV_USE_SELECT) |
68 | # ifndef EV_USE_NANOSLEEP |
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69 | # if HAVE_NANOSLEEP |
56 | # define EV_USE_SELECT 1 |
70 | # define EV_USE_NANOSLEEP 1 |
57 | # else |
71 | # else |
58 | # define EV_USE_SELECT 0 |
72 | # define EV_USE_NANOSLEEP 0 |
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73 | # endif |
59 | # endif |
74 | # endif |
60 | |
75 | |
61 | # if HAVE_POLL && HAVE_POLL_H && !defined (EV_USE_POLL) |
76 | # ifndef EV_USE_SELECT |
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|
77 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
62 | # define EV_USE_POLL 1 |
78 | # define EV_USE_SELECT 1 |
63 | # else |
79 | # else |
64 | # define EV_USE_POLL 0 |
80 | # define EV_USE_SELECT 0 |
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81 | # endif |
65 | # endif |
82 | # endif |
66 | |
83 | |
67 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H && !defined (EV_USE_EPOLL) |
84 | # ifndef EV_USE_POLL |
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85 | # if HAVE_POLL && HAVE_POLL_H |
68 | # define EV_USE_EPOLL 1 |
86 | # define EV_USE_POLL 1 |
69 | # else |
87 | # else |
70 | # define EV_USE_EPOLL 0 |
88 | # define EV_USE_POLL 0 |
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89 | # endif |
71 | # endif |
90 | # endif |
72 | |
91 | |
73 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H && !defined (EV_USE_KQUEUE) |
92 | # ifndef EV_USE_EPOLL |
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93 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
74 | # define EV_USE_KQUEUE 1 |
94 | # define EV_USE_EPOLL 1 |
75 | # else |
95 | # else |
76 | # define EV_USE_KQUEUE 0 |
96 | # define EV_USE_EPOLL 0 |
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97 | # endif |
77 | # endif |
98 | # endif |
78 | |
99 | |
79 | # if HAVE_PORT_H && HAVE_PORT_CREATE && !defined (EV_USE_PORT) |
100 | # ifndef EV_USE_KQUEUE |
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101 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
80 | # define EV_USE_PORT 1 |
102 | # define EV_USE_KQUEUE 1 |
81 | # else |
103 | # else |
82 | # define EV_USE_PORT 0 |
104 | # define EV_USE_KQUEUE 0 |
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105 | # endif |
83 | # endif |
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 |
84 | |
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 | |
85 | #endif |
132 | #endif |
86 | |
133 | |
87 | #include <math.h> |
134 | #include <math.h> |
88 | #include <stdlib.h> |
135 | #include <stdlib.h> |
89 | #include <fcntl.h> |
136 | #include <fcntl.h> |
… | |
… | |
96 | #include <sys/types.h> |
143 | #include <sys/types.h> |
97 | #include <time.h> |
144 | #include <time.h> |
98 | |
145 | |
99 | #include <signal.h> |
146 | #include <signal.h> |
100 | |
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 | |
101 | #ifndef _WIN32 |
154 | #ifndef _WIN32 |
102 | # include <unistd.h> |
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103 | # include <sys/time.h> |
155 | # include <sys/time.h> |
104 | # include <sys/wait.h> |
156 | # include <sys/wait.h> |
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157 | # include <unistd.h> |
105 | #else |
158 | #else |
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159 | # include <io.h> |
106 | # define WIN32_LEAN_AND_MEAN |
160 | # define WIN32_LEAN_AND_MEAN |
107 | # include <windows.h> |
161 | # include <windows.h> |
108 | # ifndef EV_SELECT_IS_WINSOCKET |
162 | # ifndef EV_SELECT_IS_WINSOCKET |
109 | # define EV_SELECT_IS_WINSOCKET 1 |
163 | # define EV_SELECT_IS_WINSOCKET 1 |
110 | # endif |
164 | # endif |
111 | #endif |
165 | #endif |
112 | |
166 | |
113 | /**/ |
167 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
114 | |
168 | |
115 | #ifndef EV_USE_MONOTONIC |
169 | #ifndef EV_USE_MONOTONIC |
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170 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
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171 | # define EV_USE_MONOTONIC 1 |
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172 | # else |
116 | # define EV_USE_MONOTONIC 0 |
173 | # define EV_USE_MONOTONIC 0 |
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174 | # endif |
117 | #endif |
175 | #endif |
118 | |
176 | |
119 | #ifndef EV_USE_REALTIME |
177 | #ifndef EV_USE_REALTIME |
120 | # define EV_USE_REALTIME 0 |
178 | # define EV_USE_REALTIME 0 |
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179 | #endif |
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180 | |
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181 | #ifndef EV_USE_NANOSLEEP |
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182 | # if _POSIX_C_SOURCE >= 199309L |
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183 | # define EV_USE_NANOSLEEP 1 |
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184 | # else |
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185 | # define EV_USE_NANOSLEEP 0 |
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186 | # endif |
121 | #endif |
187 | #endif |
122 | |
188 | |
123 | #ifndef EV_USE_SELECT |
189 | #ifndef EV_USE_SELECT |
124 | # define EV_USE_SELECT 1 |
190 | # define EV_USE_SELECT 1 |
125 | #endif |
191 | #endif |
… | |
… | |
131 | # define EV_USE_POLL 1 |
197 | # define EV_USE_POLL 1 |
132 | # endif |
198 | # endif |
133 | #endif |
199 | #endif |
134 | |
200 | |
135 | #ifndef EV_USE_EPOLL |
201 | #ifndef EV_USE_EPOLL |
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202 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
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203 | # define EV_USE_EPOLL 1 |
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204 | # else |
136 | # define EV_USE_EPOLL 0 |
205 | # define EV_USE_EPOLL 0 |
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206 | # endif |
137 | #endif |
207 | #endif |
138 | |
208 | |
139 | #ifndef EV_USE_KQUEUE |
209 | #ifndef EV_USE_KQUEUE |
140 | # define EV_USE_KQUEUE 0 |
210 | # define EV_USE_KQUEUE 0 |
141 | #endif |
211 | #endif |
142 | |
212 | |
143 | #ifndef EV_USE_PORT |
213 | #ifndef EV_USE_PORT |
144 | # define EV_USE_PORT 0 |
214 | # define EV_USE_PORT 0 |
145 | #endif |
215 | #endif |
146 | |
216 | |
147 | /**/ |
217 | #ifndef EV_USE_INOTIFY |
148 | |
218 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
149 | /* darwin simply cannot be helped */ |
219 | # define EV_USE_INOTIFY 1 |
150 | #ifdef __APPLE__ |
220 | # else |
151 | # undef EV_USE_POLL |
221 | # define EV_USE_INOTIFY 0 |
152 | # undef EV_USE_KQUEUE |
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153 | #endif |
222 | # endif |
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223 | #endif |
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224 | |
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225 | #ifndef EV_PID_HASHSIZE |
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226 | # if EV_MINIMAL |
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227 | # define EV_PID_HASHSIZE 1 |
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228 | # else |
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229 | # define EV_PID_HASHSIZE 16 |
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230 | # endif |
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231 | #endif |
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232 | |
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233 | #ifndef EV_INOTIFY_HASHSIZE |
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234 | # if EV_MINIMAL |
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235 | # define EV_INOTIFY_HASHSIZE 1 |
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236 | # else |
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237 | # define EV_INOTIFY_HASHSIZE 16 |
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238 | # endif |
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239 | #endif |
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240 | |
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241 | #ifndef EV_USE_EVENTFD |
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242 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
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243 | # define EV_USE_EVENTFD 1 |
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244 | # else |
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245 | # define EV_USE_EVENTFD 0 |
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246 | # endif |
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247 | #endif |
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248 | |
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249 | #if 0 /* debugging */ |
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250 | # define EV_VERIFY 3 |
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251 | # define EV_USE_4HEAP 1 |
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252 | # define EV_HEAP_CACHE_AT 1 |
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253 | #endif |
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254 | |
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255 | #ifndef EV_VERIFY |
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256 | # define EV_VERIFY !EV_MINIMAL |
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257 | #endif |
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258 | |
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259 | #ifndef EV_USE_4HEAP |
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260 | # define EV_USE_4HEAP !EV_MINIMAL |
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261 | #endif |
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262 | |
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263 | #ifndef EV_HEAP_CACHE_AT |
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264 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
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265 | #endif |
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266 | |
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267 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
154 | |
268 | |
155 | #ifndef CLOCK_MONOTONIC |
269 | #ifndef CLOCK_MONOTONIC |
156 | # undef EV_USE_MONOTONIC |
270 | # undef EV_USE_MONOTONIC |
157 | # define EV_USE_MONOTONIC 0 |
271 | # define EV_USE_MONOTONIC 0 |
158 | #endif |
272 | #endif |
… | |
… | |
160 | #ifndef CLOCK_REALTIME |
274 | #ifndef CLOCK_REALTIME |
161 | # undef EV_USE_REALTIME |
275 | # undef EV_USE_REALTIME |
162 | # define EV_USE_REALTIME 0 |
276 | # define EV_USE_REALTIME 0 |
163 | #endif |
277 | #endif |
164 | |
278 | |
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279 | #if !EV_STAT_ENABLE |
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280 | # undef EV_USE_INOTIFY |
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281 | # define EV_USE_INOTIFY 0 |
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282 | #endif |
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283 | |
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284 | #if !EV_USE_NANOSLEEP |
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285 | # ifndef _WIN32 |
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286 | # include <sys/select.h> |
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287 | # endif |
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288 | #endif |
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289 | |
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290 | #if EV_USE_INOTIFY |
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291 | # include <sys/inotify.h> |
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292 | #endif |
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293 | |
165 | #if EV_SELECT_IS_WINSOCKET |
294 | #if EV_SELECT_IS_WINSOCKET |
166 | # include <winsock.h> |
295 | # include <winsock.h> |
167 | #endif |
296 | #endif |
168 | |
297 | |
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298 | #if EV_USE_EVENTFD |
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299 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
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300 | # include <stdint.h> |
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301 | # ifdef __cplusplus |
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302 | extern "C" { |
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303 | # endif |
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304 | int eventfd (unsigned int initval, int flags); |
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305 | # ifdef __cplusplus |
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306 | } |
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307 | # endif |
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308 | #endif |
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309 | |
169 | /**/ |
310 | /**/ |
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311 | |
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312 | #if EV_VERIFY >= 3 |
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313 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
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314 | #else |
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315 | # define EV_FREQUENT_CHECK do { } while (0) |
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316 | #endif |
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317 | |
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318 | /* |
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319 | * This is used to avoid floating point rounding problems. |
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320 | * It is added to ev_rt_now when scheduling periodics |
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321 | * to ensure progress, time-wise, even when rounding |
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322 | * errors are against us. |
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323 | * This value is good at least till the year 4000. |
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324 | * Better solutions welcome. |
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325 | */ |
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326 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
170 | |
327 | |
171 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
328 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
172 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
329 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
173 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
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174 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */ |
330 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
175 | |
331 | |
176 | #ifdef EV_H |
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177 | # include EV_H |
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178 | #else |
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179 | # include "ev.h" |
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180 | #endif |
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181 | |
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182 | #if __GNUC__ >= 3 |
332 | #if __GNUC__ >= 4 |
183 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
333 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
184 | # define inline static inline |
334 | # define noinline __attribute__ ((noinline)) |
185 | #else |
335 | #else |
186 | # define expect(expr,value) (expr) |
336 | # define expect(expr,value) (expr) |
187 | # define inline static |
337 | # define noinline |
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338 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
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339 | # define inline |
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340 | # endif |
188 | #endif |
341 | #endif |
189 | |
342 | |
190 | #define expect_false(expr) expect ((expr) != 0, 0) |
343 | #define expect_false(expr) expect ((expr) != 0, 0) |
191 | #define expect_true(expr) expect ((expr) != 0, 1) |
344 | #define expect_true(expr) expect ((expr) != 0, 1) |
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345 | #define inline_size static inline |
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346 | |
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347 | #if EV_MINIMAL |
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348 | # define inline_speed static noinline |
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349 | #else |
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350 | # define inline_speed static inline |
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351 | #endif |
192 | |
352 | |
193 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
353 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
194 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
354 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
195 | |
355 | |
196 | #define EMPTY0 /* required for microsofts broken pseudo-c compiler */ |
356 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
197 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
357 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
198 | |
358 | |
199 | typedef struct ev_watcher *W; |
359 | typedef ev_watcher *W; |
200 | typedef struct ev_watcher_list *WL; |
360 | typedef ev_watcher_list *WL; |
201 | typedef struct ev_watcher_time *WT; |
361 | typedef ev_watcher_time *WT; |
202 | |
362 | |
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363 | #define ev_active(w) ((W)(w))->active |
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364 | #define ev_at(w) ((WT)(w))->at |
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365 | |
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366 | #if EV_USE_MONOTONIC |
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367 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
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368 | /* giving it a reasonably high chance of working on typical architetcures */ |
203 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
369 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
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370 | #endif |
204 | |
371 | |
205 | #ifdef _WIN32 |
372 | #ifdef _WIN32 |
206 | # include "ev_win32.c" |
373 | # include "ev_win32.c" |
207 | #endif |
374 | #endif |
208 | |
375 | |
209 | /*****************************************************************************/ |
376 | /*****************************************************************************/ |
210 | |
377 | |
211 | static void (*syserr_cb)(const char *msg); |
378 | static void (*syserr_cb)(const char *msg); |
212 | |
379 | |
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380 | void |
213 | void ev_set_syserr_cb (void (*cb)(const char *msg)) |
381 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
214 | { |
382 | { |
215 | syserr_cb = cb; |
383 | syserr_cb = cb; |
216 | } |
384 | } |
217 | |
385 | |
218 | static void |
386 | static void noinline |
219 | syserr (const char *msg) |
387 | syserr (const char *msg) |
220 | { |
388 | { |
221 | if (!msg) |
389 | if (!msg) |
222 | msg = "(libev) system error"; |
390 | msg = "(libev) system error"; |
223 | |
391 | |
… | |
… | |
228 | perror (msg); |
396 | perror (msg); |
229 | abort (); |
397 | abort (); |
230 | } |
398 | } |
231 | } |
399 | } |
232 | |
400 | |
|
|
401 | static void * |
|
|
402 | ev_realloc_emul (void *ptr, long size) |
|
|
403 | { |
|
|
404 | /* some systems, notably openbsd and darwin, fail to properly |
|
|
405 | * implement realloc (x, 0) (as required by both ansi c-98 and |
|
|
406 | * the single unix specification, so work around them here. |
|
|
407 | */ |
|
|
408 | |
|
|
409 | if (size) |
|
|
410 | return realloc (ptr, size); |
|
|
411 | |
|
|
412 | free (ptr); |
|
|
413 | return 0; |
|
|
414 | } |
|
|
415 | |
233 | static void *(*alloc)(void *ptr, long size); |
416 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
234 | |
417 | |
|
|
418 | void |
235 | void ev_set_allocator (void *(*cb)(void *ptr, long size)) |
419 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
236 | { |
420 | { |
237 | alloc = cb; |
421 | alloc = cb; |
238 | } |
422 | } |
239 | |
423 | |
240 | static void * |
424 | inline_speed void * |
241 | ev_realloc (void *ptr, long size) |
425 | ev_realloc (void *ptr, long size) |
242 | { |
426 | { |
243 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
427 | ptr = alloc (ptr, size); |
244 | |
428 | |
245 | if (!ptr && size) |
429 | if (!ptr && size) |
246 | { |
430 | { |
247 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
431 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
248 | abort (); |
432 | abort (); |
… | |
… | |
269 | typedef struct |
453 | typedef struct |
270 | { |
454 | { |
271 | W w; |
455 | W w; |
272 | int events; |
456 | int events; |
273 | } ANPENDING; |
457 | } ANPENDING; |
|
|
458 | |
|
|
459 | #if EV_USE_INOTIFY |
|
|
460 | /* hash table entry per inotify-id */ |
|
|
461 | typedef struct |
|
|
462 | { |
|
|
463 | WL head; |
|
|
464 | } ANFS; |
|
|
465 | #endif |
|
|
466 | |
|
|
467 | /* Heap Entry */ |
|
|
468 | #if EV_HEAP_CACHE_AT |
|
|
469 | typedef struct { |
|
|
470 | ev_tstamp at; |
|
|
471 | WT w; |
|
|
472 | } ANHE; |
|
|
473 | |
|
|
474 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
|
|
475 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
|
476 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
477 | #else |
|
|
478 | typedef WT ANHE; |
|
|
479 | |
|
|
480 | #define ANHE_w(he) (he) |
|
|
481 | #define ANHE_at(he) (he)->at |
|
|
482 | #define ANHE_at_cache(he) |
|
|
483 | #endif |
274 | |
484 | |
275 | #if EV_MULTIPLICITY |
485 | #if EV_MULTIPLICITY |
276 | |
486 | |
277 | struct ev_loop |
487 | struct ev_loop |
278 | { |
488 | { |
… | |
… | |
312 | gettimeofday (&tv, 0); |
522 | gettimeofday (&tv, 0); |
313 | return tv.tv_sec + tv.tv_usec * 1e-6; |
523 | return tv.tv_sec + tv.tv_usec * 1e-6; |
314 | #endif |
524 | #endif |
315 | } |
525 | } |
316 | |
526 | |
317 | inline ev_tstamp |
527 | ev_tstamp inline_size |
318 | get_clock (void) |
528 | get_clock (void) |
319 | { |
529 | { |
320 | #if EV_USE_MONOTONIC |
530 | #if EV_USE_MONOTONIC |
321 | if (expect_true (have_monotonic)) |
531 | if (expect_true (have_monotonic)) |
322 | { |
532 | { |
… | |
… | |
335 | { |
545 | { |
336 | return ev_rt_now; |
546 | return ev_rt_now; |
337 | } |
547 | } |
338 | #endif |
548 | #endif |
339 | |
549 | |
340 | #define array_roundsize(type,n) (((n) | 4) & ~3) |
550 | void |
|
|
551 | ev_sleep (ev_tstamp delay) |
|
|
552 | { |
|
|
553 | if (delay > 0.) |
|
|
554 | { |
|
|
555 | #if EV_USE_NANOSLEEP |
|
|
556 | struct timespec ts; |
|
|
557 | |
|
|
558 | ts.tv_sec = (time_t)delay; |
|
|
559 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
560 | |
|
|
561 | nanosleep (&ts, 0); |
|
|
562 | #elif defined(_WIN32) |
|
|
563 | Sleep ((unsigned long)(delay * 1e3)); |
|
|
564 | #else |
|
|
565 | struct timeval tv; |
|
|
566 | |
|
|
567 | tv.tv_sec = (time_t)delay; |
|
|
568 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
569 | |
|
|
570 | select (0, 0, 0, 0, &tv); |
|
|
571 | #endif |
|
|
572 | } |
|
|
573 | } |
|
|
574 | |
|
|
575 | /*****************************************************************************/ |
|
|
576 | |
|
|
577 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
|
|
578 | |
|
|
579 | int inline_size |
|
|
580 | array_nextsize (int elem, int cur, int cnt) |
|
|
581 | { |
|
|
582 | int ncur = cur + 1; |
|
|
583 | |
|
|
584 | do |
|
|
585 | ncur <<= 1; |
|
|
586 | while (cnt > ncur); |
|
|
587 | |
|
|
588 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
|
|
589 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
|
|
590 | { |
|
|
591 | ncur *= elem; |
|
|
592 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
|
|
593 | ncur = ncur - sizeof (void *) * 4; |
|
|
594 | ncur /= elem; |
|
|
595 | } |
|
|
596 | |
|
|
597 | return ncur; |
|
|
598 | } |
|
|
599 | |
|
|
600 | static noinline void * |
|
|
601 | array_realloc (int elem, void *base, int *cur, int cnt) |
|
|
602 | { |
|
|
603 | *cur = array_nextsize (elem, *cur, cnt); |
|
|
604 | return ev_realloc (base, elem * *cur); |
|
|
605 | } |
341 | |
606 | |
342 | #define array_needsize(type,base,cur,cnt,init) \ |
607 | #define array_needsize(type,base,cur,cnt,init) \ |
343 | if (expect_false ((cnt) > cur)) \ |
608 | if (expect_false ((cnt) > (cur))) \ |
344 | { \ |
609 | { \ |
345 | int newcnt = cur; \ |
610 | int ocur_ = (cur); \ |
346 | do \ |
611 | (base) = (type *)array_realloc \ |
347 | { \ |
612 | (sizeof (type), (base), &(cur), (cnt)); \ |
348 | newcnt = array_roundsize (type, newcnt << 1); \ |
613 | init ((base) + (ocur_), (cur) - ocur_); \ |
349 | } \ |
|
|
350 | while ((cnt) > newcnt); \ |
|
|
351 | \ |
|
|
352 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
|
|
353 | init (base + cur, newcnt - cur); \ |
|
|
354 | cur = newcnt; \ |
|
|
355 | } |
614 | } |
356 | |
615 | |
|
|
616 | #if 0 |
357 | #define array_slim(type,stem) \ |
617 | #define array_slim(type,stem) \ |
358 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
618 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
359 | { \ |
619 | { \ |
360 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
620 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
361 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
621 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
362 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
622 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
363 | } |
623 | } |
|
|
624 | #endif |
364 | |
625 | |
365 | #define array_free(stem, idx) \ |
626 | #define array_free(stem, idx) \ |
366 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
627 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
367 | |
628 | |
368 | /*****************************************************************************/ |
629 | /*****************************************************************************/ |
369 | |
630 | |
370 | static void |
631 | void noinline |
|
|
632 | ev_feed_event (EV_P_ void *w, int revents) |
|
|
633 | { |
|
|
634 | W w_ = (W)w; |
|
|
635 | int pri = ABSPRI (w_); |
|
|
636 | |
|
|
637 | if (expect_false (w_->pending)) |
|
|
638 | pendings [pri][w_->pending - 1].events |= revents; |
|
|
639 | else |
|
|
640 | { |
|
|
641 | w_->pending = ++pendingcnt [pri]; |
|
|
642 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
|
|
643 | pendings [pri][w_->pending - 1].w = w_; |
|
|
644 | pendings [pri][w_->pending - 1].events = revents; |
|
|
645 | } |
|
|
646 | } |
|
|
647 | |
|
|
648 | void inline_speed |
|
|
649 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
650 | { |
|
|
651 | int i; |
|
|
652 | |
|
|
653 | for (i = 0; i < eventcnt; ++i) |
|
|
654 | ev_feed_event (EV_A_ events [i], type); |
|
|
655 | } |
|
|
656 | |
|
|
657 | /*****************************************************************************/ |
|
|
658 | |
|
|
659 | void inline_size |
371 | anfds_init (ANFD *base, int count) |
660 | anfds_init (ANFD *base, int count) |
372 | { |
661 | { |
373 | while (count--) |
662 | while (count--) |
374 | { |
663 | { |
375 | base->head = 0; |
664 | base->head = 0; |
… | |
… | |
378 | |
667 | |
379 | ++base; |
668 | ++base; |
380 | } |
669 | } |
381 | } |
670 | } |
382 | |
671 | |
383 | void |
672 | void inline_speed |
384 | ev_feed_event (EV_P_ void *w, int revents) |
|
|
385 | { |
|
|
386 | W w_ = (W)w; |
|
|
387 | |
|
|
388 | if (expect_false (w_->pending)) |
|
|
389 | { |
|
|
390 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
|
|
391 | return; |
|
|
392 | } |
|
|
393 | |
|
|
394 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
|
|
395 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2); |
|
|
396 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
|
|
397 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
|
|
398 | } |
|
|
399 | |
|
|
400 | static void |
|
|
401 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
402 | { |
|
|
403 | int i; |
|
|
404 | |
|
|
405 | for (i = 0; i < eventcnt; ++i) |
|
|
406 | ev_feed_event (EV_A_ events [i], type); |
|
|
407 | } |
|
|
408 | |
|
|
409 | inline void |
|
|
410 | fd_event (EV_P_ int fd, int revents) |
673 | fd_event (EV_P_ int fd, int revents) |
411 | { |
674 | { |
412 | ANFD *anfd = anfds + fd; |
675 | ANFD *anfd = anfds + fd; |
413 | struct ev_io *w; |
676 | ev_io *w; |
414 | |
677 | |
415 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
678 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
416 | { |
679 | { |
417 | int ev = w->events & revents; |
680 | int ev = w->events & revents; |
418 | |
681 | |
419 | if (ev) |
682 | if (ev) |
420 | ev_feed_event (EV_A_ (W)w, ev); |
683 | ev_feed_event (EV_A_ (W)w, ev); |
… | |
… | |
422 | } |
685 | } |
423 | |
686 | |
424 | void |
687 | void |
425 | ev_feed_fd_event (EV_P_ int fd, int revents) |
688 | ev_feed_fd_event (EV_P_ int fd, int revents) |
426 | { |
689 | { |
|
|
690 | if (fd >= 0 && fd < anfdmax) |
427 | fd_event (EV_A_ fd, revents); |
691 | fd_event (EV_A_ fd, revents); |
428 | } |
692 | } |
429 | |
693 | |
430 | /*****************************************************************************/ |
694 | void inline_size |
431 | |
|
|
432 | inline void |
|
|
433 | fd_reify (EV_P) |
695 | fd_reify (EV_P) |
434 | { |
696 | { |
435 | int i; |
697 | int i; |
436 | |
698 | |
437 | for (i = 0; i < fdchangecnt; ++i) |
699 | for (i = 0; i < fdchangecnt; ++i) |
438 | { |
700 | { |
439 | int fd = fdchanges [i]; |
701 | int fd = fdchanges [i]; |
440 | ANFD *anfd = anfds + fd; |
702 | ANFD *anfd = anfds + fd; |
441 | struct ev_io *w; |
703 | ev_io *w; |
442 | |
704 | |
443 | int events = 0; |
705 | unsigned char events = 0; |
444 | |
706 | |
445 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
707 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
446 | events |= w->events; |
708 | events |= (unsigned char)w->events; |
447 | |
709 | |
448 | #if EV_SELECT_IS_WINSOCKET |
710 | #if EV_SELECT_IS_WINSOCKET |
449 | if (events) |
711 | if (events) |
450 | { |
712 | { |
451 | unsigned long argp; |
713 | unsigned long arg; |
|
|
714 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
715 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
716 | #else |
452 | anfd->handle = _get_osfhandle (fd); |
717 | anfd->handle = _get_osfhandle (fd); |
|
|
718 | #endif |
453 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
719 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
454 | } |
720 | } |
455 | #endif |
721 | #endif |
456 | |
722 | |
|
|
723 | { |
|
|
724 | unsigned char o_events = anfd->events; |
|
|
725 | unsigned char o_reify = anfd->reify; |
|
|
726 | |
457 | anfd->reify = 0; |
727 | anfd->reify = 0; |
458 | |
|
|
459 | method_modify (EV_A_ fd, anfd->events, events); |
|
|
460 | anfd->events = events; |
728 | anfd->events = events; |
|
|
729 | |
|
|
730 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
731 | backend_modify (EV_A_ fd, o_events, events); |
|
|
732 | } |
461 | } |
733 | } |
462 | |
734 | |
463 | fdchangecnt = 0; |
735 | fdchangecnt = 0; |
464 | } |
736 | } |
465 | |
737 | |
466 | static void |
738 | void inline_size |
467 | fd_change (EV_P_ int fd) |
739 | fd_change (EV_P_ int fd, int flags) |
468 | { |
740 | { |
469 | if (expect_false (anfds [fd].reify)) |
741 | unsigned char reify = anfds [fd].reify; |
470 | return; |
|
|
471 | |
|
|
472 | anfds [fd].reify = 1; |
742 | anfds [fd].reify |= flags; |
473 | |
743 | |
|
|
744 | if (expect_true (!reify)) |
|
|
745 | { |
474 | ++fdchangecnt; |
746 | ++fdchangecnt; |
475 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
747 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
476 | fdchanges [fdchangecnt - 1] = fd; |
748 | fdchanges [fdchangecnt - 1] = fd; |
|
|
749 | } |
477 | } |
750 | } |
478 | |
751 | |
479 | static void |
752 | void inline_speed |
480 | fd_kill (EV_P_ int fd) |
753 | fd_kill (EV_P_ int fd) |
481 | { |
754 | { |
482 | struct ev_io *w; |
755 | ev_io *w; |
483 | |
756 | |
484 | while ((w = (struct ev_io *)anfds [fd].head)) |
757 | while ((w = (ev_io *)anfds [fd].head)) |
485 | { |
758 | { |
486 | ev_io_stop (EV_A_ w); |
759 | ev_io_stop (EV_A_ w); |
487 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
760 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
488 | } |
761 | } |
489 | } |
762 | } |
490 | |
763 | |
491 | inline int |
764 | int inline_size |
492 | fd_valid (int fd) |
765 | fd_valid (int fd) |
493 | { |
766 | { |
494 | #ifdef _WIN32 |
767 | #ifdef _WIN32 |
495 | return _get_osfhandle (fd) != -1; |
768 | return _get_osfhandle (fd) != -1; |
496 | #else |
769 | #else |
497 | return fcntl (fd, F_GETFD) != -1; |
770 | return fcntl (fd, F_GETFD) != -1; |
498 | #endif |
771 | #endif |
499 | } |
772 | } |
500 | |
773 | |
501 | /* called on EBADF to verify fds */ |
774 | /* called on EBADF to verify fds */ |
502 | static void |
775 | static void noinline |
503 | fd_ebadf (EV_P) |
776 | fd_ebadf (EV_P) |
504 | { |
777 | { |
505 | int fd; |
778 | int fd; |
506 | |
779 | |
507 | for (fd = 0; fd < anfdmax; ++fd) |
780 | for (fd = 0; fd < anfdmax; ++fd) |
508 | if (anfds [fd].events) |
781 | if (anfds [fd].events) |
509 | if (!fd_valid (fd) == -1 && errno == EBADF) |
782 | if (!fd_valid (fd) && errno == EBADF) |
510 | fd_kill (EV_A_ fd); |
783 | fd_kill (EV_A_ fd); |
511 | } |
784 | } |
512 | |
785 | |
513 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
786 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
514 | static void |
787 | static void noinline |
515 | fd_enomem (EV_P) |
788 | fd_enomem (EV_P) |
516 | { |
789 | { |
517 | int fd; |
790 | int fd; |
518 | |
791 | |
519 | for (fd = anfdmax; fd--; ) |
792 | for (fd = anfdmax; fd--; ) |
… | |
… | |
522 | fd_kill (EV_A_ fd); |
795 | fd_kill (EV_A_ fd); |
523 | return; |
796 | return; |
524 | } |
797 | } |
525 | } |
798 | } |
526 | |
799 | |
527 | /* usually called after fork if method needs to re-arm all fds from scratch */ |
800 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
528 | static void |
801 | static void noinline |
529 | fd_rearm_all (EV_P) |
802 | fd_rearm_all (EV_P) |
530 | { |
803 | { |
531 | int fd; |
804 | int fd; |
532 | |
805 | |
533 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
534 | for (fd = 0; fd < anfdmax; ++fd) |
806 | for (fd = 0; fd < anfdmax; ++fd) |
535 | if (anfds [fd].events) |
807 | if (anfds [fd].events) |
536 | { |
808 | { |
537 | anfds [fd].events = 0; |
809 | anfds [fd].events = 0; |
538 | fd_change (EV_A_ fd); |
810 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
539 | } |
811 | } |
540 | } |
812 | } |
541 | |
813 | |
542 | /*****************************************************************************/ |
814 | /*****************************************************************************/ |
543 | |
815 | |
544 | static void |
816 | /* |
545 | upheap (WT *heap, int k) |
817 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
546 | { |
818 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
547 | WT w = heap [k]; |
819 | * the branching factor of the d-tree. |
|
|
820 | */ |
548 | |
821 | |
549 | while (k && heap [k >> 1]->at > w->at) |
822 | /* |
550 | { |
823 | * at the moment we allow libev the luxury of two heaps, |
551 | heap [k] = heap [k >> 1]; |
824 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
552 | ((W)heap [k])->active = k + 1; |
825 | * which is more cache-efficient. |
553 | k >>= 1; |
826 | * the difference is about 5% with 50000+ watchers. |
554 | } |
827 | */ |
|
|
828 | #if EV_USE_4HEAP |
555 | |
829 | |
556 | heap [k] = w; |
830 | #define DHEAP 4 |
557 | ((W)heap [k])->active = k + 1; |
831 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
832 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
833 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
558 | |
834 | |
559 | } |
835 | /* away from the root */ |
560 | |
836 | void inline_speed |
561 | static void |
|
|
562 | downheap (WT *heap, int N, int k) |
837 | downheap (ANHE *heap, int N, int k) |
563 | { |
838 | { |
564 | WT w = heap [k]; |
839 | ANHE he = heap [k]; |
|
|
840 | ANHE *E = heap + N + HEAP0; |
565 | |
841 | |
566 | while (k < (N >> 1)) |
842 | for (;;) |
567 | { |
843 | { |
568 | int j = k << 1; |
844 | ev_tstamp minat; |
|
|
845 | ANHE *minpos; |
|
|
846 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
569 | |
847 | |
570 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
848 | /* find minimum child */ |
|
|
849 | if (expect_true (pos + DHEAP - 1 < E)) |
571 | ++j; |
850 | { |
572 | |
851 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
573 | if (w->at <= heap [j]->at) |
852 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
853 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
854 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
855 | } |
|
|
856 | else if (pos < E) |
|
|
857 | { |
|
|
858 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
859 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
860 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
861 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
862 | } |
|
|
863 | else |
574 | break; |
864 | break; |
575 | |
865 | |
|
|
866 | if (ANHE_at (he) <= minat) |
|
|
867 | break; |
|
|
868 | |
|
|
869 | heap [k] = *minpos; |
|
|
870 | ev_active (ANHE_w (*minpos)) = k; |
|
|
871 | |
|
|
872 | k = minpos - heap; |
|
|
873 | } |
|
|
874 | |
|
|
875 | heap [k] = he; |
|
|
876 | ev_active (ANHE_w (he)) = k; |
|
|
877 | } |
|
|
878 | |
|
|
879 | #else /* 4HEAP */ |
|
|
880 | |
|
|
881 | #define HEAP0 1 |
|
|
882 | #define HPARENT(k) ((k) >> 1) |
|
|
883 | #define UPHEAP_DONE(p,k) (!(p)) |
|
|
884 | |
|
|
885 | /* away from the root */ |
|
|
886 | void inline_speed |
|
|
887 | downheap (ANHE *heap, int N, int k) |
|
|
888 | { |
|
|
889 | ANHE he = heap [k]; |
|
|
890 | |
|
|
891 | for (;;) |
|
|
892 | { |
|
|
893 | int c = k << 1; |
|
|
894 | |
|
|
895 | if (c > N + HEAP0 - 1) |
|
|
896 | break; |
|
|
897 | |
|
|
898 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
899 | ? 1 : 0; |
|
|
900 | |
|
|
901 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
902 | break; |
|
|
903 | |
576 | heap [k] = heap [j]; |
904 | heap [k] = heap [c]; |
577 | ((W)heap [k])->active = k + 1; |
905 | ev_active (ANHE_w (heap [k])) = k; |
|
|
906 | |
578 | k = j; |
907 | k = c; |
579 | } |
908 | } |
580 | |
909 | |
581 | heap [k] = w; |
910 | heap [k] = he; |
582 | ((W)heap [k])->active = k + 1; |
911 | ev_active (ANHE_w (he)) = k; |
583 | } |
912 | } |
|
|
913 | #endif |
584 | |
914 | |
585 | inline void |
915 | /* towards the root */ |
|
|
916 | void inline_speed |
|
|
917 | upheap (ANHE *heap, int k) |
|
|
918 | { |
|
|
919 | ANHE he = heap [k]; |
|
|
920 | |
|
|
921 | for (;;) |
|
|
922 | { |
|
|
923 | int p = HPARENT (k); |
|
|
924 | |
|
|
925 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
926 | break; |
|
|
927 | |
|
|
928 | heap [k] = heap [p]; |
|
|
929 | ev_active (ANHE_w (heap [k])) = k; |
|
|
930 | k = p; |
|
|
931 | } |
|
|
932 | |
|
|
933 | heap [k] = he; |
|
|
934 | ev_active (ANHE_w (he)) = k; |
|
|
935 | } |
|
|
936 | |
|
|
937 | void inline_size |
586 | adjustheap (WT *heap, int N, int k) |
938 | adjustheap (ANHE *heap, int N, int k) |
587 | { |
939 | { |
|
|
940 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
588 | upheap (heap, k); |
941 | upheap (heap, k); |
|
|
942 | else |
589 | downheap (heap, N, k); |
943 | downheap (heap, N, k); |
|
|
944 | } |
|
|
945 | |
|
|
946 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
947 | void inline_size |
|
|
948 | reheap (ANHE *heap, int N) |
|
|
949 | { |
|
|
950 | int i; |
|
|
951 | |
|
|
952 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
953 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
954 | for (i = 0; i < N; ++i) |
|
|
955 | upheap (heap, i + HEAP0); |
590 | } |
956 | } |
591 | |
957 | |
592 | /*****************************************************************************/ |
958 | /*****************************************************************************/ |
593 | |
959 | |
594 | typedef struct |
960 | typedef struct |
595 | { |
961 | { |
596 | WL head; |
962 | WL head; |
597 | sig_atomic_t volatile gotsig; |
963 | EV_ATOMIC_T gotsig; |
598 | } ANSIG; |
964 | } ANSIG; |
599 | |
965 | |
600 | static ANSIG *signals; |
966 | static ANSIG *signals; |
601 | static int signalmax; |
967 | static int signalmax; |
602 | |
968 | |
603 | static int sigpipe [2]; |
969 | static EV_ATOMIC_T gotsig; |
604 | static sig_atomic_t volatile gotsig; |
|
|
605 | static struct ev_io sigev; |
|
|
606 | |
970 | |
607 | static void |
971 | void inline_size |
608 | signals_init (ANSIG *base, int count) |
972 | signals_init (ANSIG *base, int count) |
609 | { |
973 | { |
610 | while (count--) |
974 | while (count--) |
611 | { |
975 | { |
612 | base->head = 0; |
976 | base->head = 0; |
… | |
… | |
614 | |
978 | |
615 | ++base; |
979 | ++base; |
616 | } |
980 | } |
617 | } |
981 | } |
618 | |
982 | |
619 | static void |
983 | /*****************************************************************************/ |
620 | sighandler (int signum) |
|
|
621 | { |
|
|
622 | #if _WIN32 |
|
|
623 | signal (signum, sighandler); |
|
|
624 | #endif |
|
|
625 | |
984 | |
626 | signals [signum - 1].gotsig = 1; |
985 | void inline_speed |
627 | |
|
|
628 | if (!gotsig) |
|
|
629 | { |
|
|
630 | int old_errno = errno; |
|
|
631 | gotsig = 1; |
|
|
632 | write (sigpipe [1], &signum, 1); |
|
|
633 | errno = old_errno; |
|
|
634 | } |
|
|
635 | } |
|
|
636 | |
|
|
637 | void |
|
|
638 | ev_feed_signal_event (EV_P_ int signum) |
|
|
639 | { |
|
|
640 | WL w; |
|
|
641 | |
|
|
642 | #if EV_MULTIPLICITY |
|
|
643 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
644 | #endif |
|
|
645 | |
|
|
646 | --signum; |
|
|
647 | |
|
|
648 | if (signum < 0 || signum >= signalmax) |
|
|
649 | return; |
|
|
650 | |
|
|
651 | signals [signum].gotsig = 0; |
|
|
652 | |
|
|
653 | for (w = signals [signum].head; w; w = w->next) |
|
|
654 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
655 | } |
|
|
656 | |
|
|
657 | static void |
|
|
658 | sigcb (EV_P_ struct ev_io *iow, int revents) |
|
|
659 | { |
|
|
660 | int signum; |
|
|
661 | |
|
|
662 | read (sigpipe [0], &revents, 1); |
|
|
663 | gotsig = 0; |
|
|
664 | |
|
|
665 | for (signum = signalmax; signum--; ) |
|
|
666 | if (signals [signum].gotsig) |
|
|
667 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
668 | } |
|
|
669 | |
|
|
670 | static void |
|
|
671 | fd_intern (int fd) |
986 | fd_intern (int fd) |
672 | { |
987 | { |
673 | #ifdef _WIN32 |
988 | #ifdef _WIN32 |
674 | int arg = 1; |
989 | unsigned long arg = 1; |
675 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
990 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
676 | #else |
991 | #else |
677 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
992 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
678 | fcntl (fd, F_SETFL, O_NONBLOCK); |
993 | fcntl (fd, F_SETFL, O_NONBLOCK); |
679 | #endif |
994 | #endif |
680 | } |
995 | } |
681 | |
996 | |
|
|
997 | static void noinline |
|
|
998 | evpipe_init (EV_P) |
|
|
999 | { |
|
|
1000 | if (!ev_is_active (&pipeev)) |
|
|
1001 | { |
|
|
1002 | #if EV_USE_EVENTFD |
|
|
1003 | if ((evfd = eventfd (0, 0)) >= 0) |
|
|
1004 | { |
|
|
1005 | evpipe [0] = -1; |
|
|
1006 | fd_intern (evfd); |
|
|
1007 | ev_io_set (&pipeev, evfd, EV_READ); |
|
|
1008 | } |
|
|
1009 | else |
|
|
1010 | #endif |
|
|
1011 | { |
|
|
1012 | while (pipe (evpipe)) |
|
|
1013 | syserr ("(libev) error creating signal/async pipe"); |
|
|
1014 | |
|
|
1015 | fd_intern (evpipe [0]); |
|
|
1016 | fd_intern (evpipe [1]); |
|
|
1017 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
|
|
1018 | } |
|
|
1019 | |
|
|
1020 | ev_io_start (EV_A_ &pipeev); |
|
|
1021 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1022 | } |
|
|
1023 | } |
|
|
1024 | |
|
|
1025 | void inline_size |
|
|
1026 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1027 | { |
|
|
1028 | if (!*flag) |
|
|
1029 | { |
|
|
1030 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1031 | |
|
|
1032 | *flag = 1; |
|
|
1033 | |
|
|
1034 | #if EV_USE_EVENTFD |
|
|
1035 | if (evfd >= 0) |
|
|
1036 | { |
|
|
1037 | uint64_t counter = 1; |
|
|
1038 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1039 | } |
|
|
1040 | else |
|
|
1041 | #endif |
|
|
1042 | write (evpipe [1], &old_errno, 1); |
|
|
1043 | |
|
|
1044 | errno = old_errno; |
|
|
1045 | } |
|
|
1046 | } |
|
|
1047 | |
682 | static void |
1048 | static void |
683 | siginit (EV_P) |
1049 | pipecb (EV_P_ ev_io *iow, int revents) |
684 | { |
1050 | { |
685 | fd_intern (sigpipe [0]); |
1051 | #if EV_USE_EVENTFD |
686 | fd_intern (sigpipe [1]); |
1052 | if (evfd >= 0) |
|
|
1053 | { |
|
|
1054 | uint64_t counter; |
|
|
1055 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1056 | } |
|
|
1057 | else |
|
|
1058 | #endif |
|
|
1059 | { |
|
|
1060 | char dummy; |
|
|
1061 | read (evpipe [0], &dummy, 1); |
|
|
1062 | } |
687 | |
1063 | |
688 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
1064 | if (gotsig && ev_is_default_loop (EV_A)) |
689 | ev_io_start (EV_A_ &sigev); |
1065 | { |
690 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1066 | int signum; |
|
|
1067 | gotsig = 0; |
|
|
1068 | |
|
|
1069 | for (signum = signalmax; signum--; ) |
|
|
1070 | if (signals [signum].gotsig) |
|
|
1071 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
1072 | } |
|
|
1073 | |
|
|
1074 | #if EV_ASYNC_ENABLE |
|
|
1075 | if (gotasync) |
|
|
1076 | { |
|
|
1077 | int i; |
|
|
1078 | gotasync = 0; |
|
|
1079 | |
|
|
1080 | for (i = asynccnt; i--; ) |
|
|
1081 | if (asyncs [i]->sent) |
|
|
1082 | { |
|
|
1083 | asyncs [i]->sent = 0; |
|
|
1084 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
1085 | } |
|
|
1086 | } |
|
|
1087 | #endif |
691 | } |
1088 | } |
692 | |
1089 | |
693 | /*****************************************************************************/ |
1090 | /*****************************************************************************/ |
694 | |
1091 | |
695 | static struct ev_child *childs [PID_HASHSIZE]; |
1092 | static void |
|
|
1093 | ev_sighandler (int signum) |
|
|
1094 | { |
|
|
1095 | #if EV_MULTIPLICITY |
|
|
1096 | struct ev_loop *loop = &default_loop_struct; |
|
|
1097 | #endif |
|
|
1098 | |
|
|
1099 | #if _WIN32 |
|
|
1100 | signal (signum, ev_sighandler); |
|
|
1101 | #endif |
|
|
1102 | |
|
|
1103 | signals [signum - 1].gotsig = 1; |
|
|
1104 | evpipe_write (EV_A_ &gotsig); |
|
|
1105 | } |
|
|
1106 | |
|
|
1107 | void noinline |
|
|
1108 | ev_feed_signal_event (EV_P_ int signum) |
|
|
1109 | { |
|
|
1110 | WL w; |
|
|
1111 | |
|
|
1112 | #if EV_MULTIPLICITY |
|
|
1113 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1114 | #endif |
|
|
1115 | |
|
|
1116 | --signum; |
|
|
1117 | |
|
|
1118 | if (signum < 0 || signum >= signalmax) |
|
|
1119 | return; |
|
|
1120 | |
|
|
1121 | signals [signum].gotsig = 0; |
|
|
1122 | |
|
|
1123 | for (w = signals [signum].head; w; w = w->next) |
|
|
1124 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
1125 | } |
|
|
1126 | |
|
|
1127 | /*****************************************************************************/ |
|
|
1128 | |
|
|
1129 | static WL childs [EV_PID_HASHSIZE]; |
696 | |
1130 | |
697 | #ifndef _WIN32 |
1131 | #ifndef _WIN32 |
698 | |
1132 | |
699 | static struct ev_signal childev; |
1133 | static ev_signal childev; |
|
|
1134 | |
|
|
1135 | #ifndef WIFCONTINUED |
|
|
1136 | # define WIFCONTINUED(status) 0 |
|
|
1137 | #endif |
|
|
1138 | |
|
|
1139 | void inline_speed |
|
|
1140 | child_reap (EV_P_ int chain, int pid, int status) |
|
|
1141 | { |
|
|
1142 | ev_child *w; |
|
|
1143 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
|
|
1144 | |
|
|
1145 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1146 | { |
|
|
1147 | if ((w->pid == pid || !w->pid) |
|
|
1148 | && (!traced || (w->flags & 1))) |
|
|
1149 | { |
|
|
1150 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
|
|
1151 | w->rpid = pid; |
|
|
1152 | w->rstatus = status; |
|
|
1153 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
1154 | } |
|
|
1155 | } |
|
|
1156 | } |
700 | |
1157 | |
701 | #ifndef WCONTINUED |
1158 | #ifndef WCONTINUED |
702 | # define WCONTINUED 0 |
1159 | # define WCONTINUED 0 |
703 | #endif |
1160 | #endif |
704 | |
1161 | |
705 | static void |
1162 | static void |
706 | child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) |
|
|
707 | { |
|
|
708 | struct ev_child *w; |
|
|
709 | |
|
|
710 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
|
|
711 | if (w->pid == pid || !w->pid) |
|
|
712 | { |
|
|
713 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
|
|
714 | w->rpid = pid; |
|
|
715 | w->rstatus = status; |
|
|
716 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
717 | } |
|
|
718 | } |
|
|
719 | |
|
|
720 | static void |
|
|
721 | childcb (EV_P_ struct ev_signal *sw, int revents) |
1163 | childcb (EV_P_ ev_signal *sw, int revents) |
722 | { |
1164 | { |
723 | int pid, status; |
1165 | int pid, status; |
724 | |
1166 | |
|
|
1167 | /* some systems define WCONTINUED but then fail to support it (linux 2.4) */ |
725 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
1168 | if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
726 | { |
1169 | if (!WCONTINUED |
|
|
1170 | || errno != EINVAL |
|
|
1171 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
|
|
1172 | return; |
|
|
1173 | |
727 | /* make sure we are called again until all childs have been reaped */ |
1174 | /* make sure we are called again until all children have been reaped */ |
|
|
1175 | /* we need to do it this way so that the callback gets called before we continue */ |
728 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1176 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
729 | |
1177 | |
730 | child_reap (EV_A_ sw, pid, pid, status); |
1178 | child_reap (EV_A_ pid, pid, status); |
|
|
1179 | if (EV_PID_HASHSIZE > 1) |
731 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
1180 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
732 | } |
|
|
733 | } |
1181 | } |
734 | |
1182 | |
735 | #endif |
1183 | #endif |
736 | |
1184 | |
737 | /*****************************************************************************/ |
1185 | /*****************************************************************************/ |
… | |
… | |
763 | { |
1211 | { |
764 | return EV_VERSION_MINOR; |
1212 | return EV_VERSION_MINOR; |
765 | } |
1213 | } |
766 | |
1214 | |
767 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1215 | /* return true if we are running with elevated privileges and should ignore env variables */ |
768 | static int |
1216 | int inline_size |
769 | enable_secure (void) |
1217 | enable_secure (void) |
770 | { |
1218 | { |
771 | #ifdef _WIN32 |
1219 | #ifdef _WIN32 |
772 | return 0; |
1220 | return 0; |
773 | #else |
1221 | #else |
… | |
… | |
775 | || getgid () != getegid (); |
1223 | || getgid () != getegid (); |
776 | #endif |
1224 | #endif |
777 | } |
1225 | } |
778 | |
1226 | |
779 | unsigned int |
1227 | unsigned int |
780 | ev_method (EV_P) |
1228 | ev_supported_backends (void) |
781 | { |
1229 | { |
782 | return method; |
1230 | unsigned int flags = 0; |
783 | } |
|
|
784 | |
1231 | |
785 | static void |
1232 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
|
|
1233 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
|
|
1234 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
1235 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
1236 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
|
|
1237 | |
|
|
1238 | return flags; |
|
|
1239 | } |
|
|
1240 | |
|
|
1241 | unsigned int |
|
|
1242 | ev_recommended_backends (void) |
|
|
1243 | { |
|
|
1244 | unsigned int flags = ev_supported_backends (); |
|
|
1245 | |
|
|
1246 | #ifndef __NetBSD__ |
|
|
1247 | /* kqueue is borked on everything but netbsd apparently */ |
|
|
1248 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
|
|
1249 | flags &= ~EVBACKEND_KQUEUE; |
|
|
1250 | #endif |
|
|
1251 | #ifdef __APPLE__ |
|
|
1252 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
|
|
1253 | flags &= ~EVBACKEND_POLL; |
|
|
1254 | #endif |
|
|
1255 | |
|
|
1256 | return flags; |
|
|
1257 | } |
|
|
1258 | |
|
|
1259 | unsigned int |
|
|
1260 | ev_embeddable_backends (void) |
|
|
1261 | { |
|
|
1262 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
|
|
1263 | |
|
|
1264 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1265 | /* please fix it and tell me how to detect the fix */ |
|
|
1266 | flags &= ~EVBACKEND_EPOLL; |
|
|
1267 | |
|
|
1268 | return flags; |
|
|
1269 | } |
|
|
1270 | |
|
|
1271 | unsigned int |
|
|
1272 | ev_backend (EV_P) |
|
|
1273 | { |
|
|
1274 | return backend; |
|
|
1275 | } |
|
|
1276 | |
|
|
1277 | unsigned int |
|
|
1278 | ev_loop_count (EV_P) |
|
|
1279 | { |
|
|
1280 | return loop_count; |
|
|
1281 | } |
|
|
1282 | |
|
|
1283 | void |
|
|
1284 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1285 | { |
|
|
1286 | io_blocktime = interval; |
|
|
1287 | } |
|
|
1288 | |
|
|
1289 | void |
|
|
1290 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1291 | { |
|
|
1292 | timeout_blocktime = interval; |
|
|
1293 | } |
|
|
1294 | |
|
|
1295 | static void noinline |
786 | loop_init (EV_P_ unsigned int flags) |
1296 | loop_init (EV_P_ unsigned int flags) |
787 | { |
1297 | { |
788 | if (!method) |
1298 | if (!backend) |
789 | { |
1299 | { |
790 | #if EV_USE_MONOTONIC |
1300 | #if EV_USE_MONOTONIC |
791 | { |
1301 | { |
792 | struct timespec ts; |
1302 | struct timespec ts; |
793 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1303 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
794 | have_monotonic = 1; |
1304 | have_monotonic = 1; |
795 | } |
1305 | } |
796 | #endif |
1306 | #endif |
797 | |
1307 | |
798 | ev_rt_now = ev_time (); |
1308 | ev_rt_now = ev_time (); |
799 | mn_now = get_clock (); |
1309 | mn_now = get_clock (); |
800 | now_floor = mn_now; |
1310 | now_floor = mn_now; |
801 | rtmn_diff = ev_rt_now - mn_now; |
1311 | rtmn_diff = ev_rt_now - mn_now; |
802 | |
1312 | |
803 | if (!(flags & EVFLAG_NOENV) && !enable_secure () && getenv ("LIBEV_FLAGS")) |
1313 | io_blocktime = 0.; |
|
|
1314 | timeout_blocktime = 0.; |
|
|
1315 | backend = 0; |
|
|
1316 | backend_fd = -1; |
|
|
1317 | gotasync = 0; |
|
|
1318 | #if EV_USE_INOTIFY |
|
|
1319 | fs_fd = -2; |
|
|
1320 | #endif |
|
|
1321 | |
|
|
1322 | /* pid check not overridable via env */ |
|
|
1323 | #ifndef _WIN32 |
|
|
1324 | if (flags & EVFLAG_FORKCHECK) |
|
|
1325 | curpid = getpid (); |
|
|
1326 | #endif |
|
|
1327 | |
|
|
1328 | if (!(flags & EVFLAG_NOENV) |
|
|
1329 | && !enable_secure () |
|
|
1330 | && getenv ("LIBEV_FLAGS")) |
804 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1331 | flags = atoi (getenv ("LIBEV_FLAGS")); |
805 | |
1332 | |
806 | if (!(flags & 0x0000ffff)) |
1333 | if (!(flags & 0x0000ffffU)) |
807 | flags |= 0x0000ffff; |
1334 | flags |= ev_recommended_backends (); |
808 | |
1335 | |
809 | method = 0; |
|
|
810 | #if EV_USE_PORT |
1336 | #if EV_USE_PORT |
811 | if (!method && (flags & EVMETHOD_PORT )) method = port_init (EV_A_ flags); |
1337 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
812 | #endif |
1338 | #endif |
813 | #if EV_USE_KQUEUE |
1339 | #if EV_USE_KQUEUE |
814 | if (!method && (flags & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ flags); |
1340 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
815 | #endif |
1341 | #endif |
816 | #if EV_USE_EPOLL |
1342 | #if EV_USE_EPOLL |
817 | if (!method && (flags & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ flags); |
1343 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
818 | #endif |
1344 | #endif |
819 | #if EV_USE_POLL |
1345 | #if EV_USE_POLL |
820 | if (!method && (flags & EVMETHOD_POLL )) method = poll_init (EV_A_ flags); |
1346 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
821 | #endif |
1347 | #endif |
822 | #if EV_USE_SELECT |
1348 | #if EV_USE_SELECT |
823 | if (!method && (flags & EVMETHOD_SELECT)) method = select_init (EV_A_ flags); |
1349 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
824 | #endif |
1350 | #endif |
825 | |
1351 | |
826 | ev_init (&sigev, sigcb); |
1352 | ev_init (&pipeev, pipecb); |
827 | ev_set_priority (&sigev, EV_MAXPRI); |
1353 | ev_set_priority (&pipeev, EV_MAXPRI); |
828 | } |
1354 | } |
829 | } |
1355 | } |
830 | |
1356 | |
831 | static void |
1357 | static void noinline |
832 | loop_destroy (EV_P) |
1358 | loop_destroy (EV_P) |
833 | { |
1359 | { |
834 | int i; |
1360 | int i; |
835 | |
1361 | |
|
|
1362 | if (ev_is_active (&pipeev)) |
|
|
1363 | { |
|
|
1364 | ev_ref (EV_A); /* signal watcher */ |
|
|
1365 | ev_io_stop (EV_A_ &pipeev); |
|
|
1366 | |
|
|
1367 | #if EV_USE_EVENTFD |
|
|
1368 | if (evfd >= 0) |
|
|
1369 | close (evfd); |
|
|
1370 | #endif |
|
|
1371 | |
|
|
1372 | if (evpipe [0] >= 0) |
|
|
1373 | { |
|
|
1374 | close (evpipe [0]); |
|
|
1375 | close (evpipe [1]); |
|
|
1376 | } |
|
|
1377 | } |
|
|
1378 | |
|
|
1379 | #if EV_USE_INOTIFY |
|
|
1380 | if (fs_fd >= 0) |
|
|
1381 | close (fs_fd); |
|
|
1382 | #endif |
|
|
1383 | |
|
|
1384 | if (backend_fd >= 0) |
|
|
1385 | close (backend_fd); |
|
|
1386 | |
836 | #if EV_USE_PORT |
1387 | #if EV_USE_PORT |
837 | if (method == EVMETHOD_PORT ) port_destroy (EV_A); |
1388 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
838 | #endif |
1389 | #endif |
839 | #if EV_USE_KQUEUE |
1390 | #if EV_USE_KQUEUE |
840 | if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); |
1391 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
841 | #endif |
1392 | #endif |
842 | #if EV_USE_EPOLL |
1393 | #if EV_USE_EPOLL |
843 | if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); |
1394 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
844 | #endif |
1395 | #endif |
845 | #if EV_USE_POLL |
1396 | #if EV_USE_POLL |
846 | if (method == EVMETHOD_POLL ) poll_destroy (EV_A); |
1397 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
847 | #endif |
1398 | #endif |
848 | #if EV_USE_SELECT |
1399 | #if EV_USE_SELECT |
849 | if (method == EVMETHOD_SELECT) select_destroy (EV_A); |
1400 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
850 | #endif |
1401 | #endif |
851 | |
1402 | |
852 | for (i = NUMPRI; i--; ) |
1403 | for (i = NUMPRI; i--; ) |
|
|
1404 | { |
853 | array_free (pending, [i]); |
1405 | array_free (pending, [i]); |
|
|
1406 | #if EV_IDLE_ENABLE |
|
|
1407 | array_free (idle, [i]); |
|
|
1408 | #endif |
|
|
1409 | } |
|
|
1410 | |
|
|
1411 | ev_free (anfds); anfdmax = 0; |
854 | |
1412 | |
855 | /* have to use the microsoft-never-gets-it-right macro */ |
1413 | /* have to use the microsoft-never-gets-it-right macro */ |
856 | array_free (fdchange, EMPTY0); |
1414 | array_free (fdchange, EMPTY); |
857 | array_free (timer, EMPTY0); |
1415 | array_free (timer, EMPTY); |
858 | #if EV_PERIODICS |
1416 | #if EV_PERIODIC_ENABLE |
859 | array_free (periodic, EMPTY0); |
1417 | array_free (periodic, EMPTY); |
860 | #endif |
1418 | #endif |
|
|
1419 | #if EV_FORK_ENABLE |
861 | array_free (idle, EMPTY0); |
1420 | array_free (fork, EMPTY); |
|
|
1421 | #endif |
862 | array_free (prepare, EMPTY0); |
1422 | array_free (prepare, EMPTY); |
863 | array_free (check, EMPTY0); |
1423 | array_free (check, EMPTY); |
|
|
1424 | #if EV_ASYNC_ENABLE |
|
|
1425 | array_free (async, EMPTY); |
|
|
1426 | #endif |
864 | |
1427 | |
865 | method = 0; |
1428 | backend = 0; |
866 | } |
1429 | } |
867 | |
1430 | |
868 | static void |
1431 | #if EV_USE_INOTIFY |
|
|
1432 | void inline_size infy_fork (EV_P); |
|
|
1433 | #endif |
|
|
1434 | |
|
|
1435 | void inline_size |
869 | loop_fork (EV_P) |
1436 | loop_fork (EV_P) |
870 | { |
1437 | { |
871 | #if EV_USE_PORT |
1438 | #if EV_USE_PORT |
872 | if (method == EVMETHOD_PORT ) port_fork (EV_A); |
1439 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
873 | #endif |
1440 | #endif |
874 | #if EV_USE_KQUEUE |
1441 | #if EV_USE_KQUEUE |
875 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
1442 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
876 | #endif |
1443 | #endif |
877 | #if EV_USE_EPOLL |
1444 | #if EV_USE_EPOLL |
878 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
1445 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
879 | #endif |
1446 | #endif |
|
|
1447 | #if EV_USE_INOTIFY |
|
|
1448 | infy_fork (EV_A); |
|
|
1449 | #endif |
880 | |
1450 | |
881 | if (ev_is_active (&sigev)) |
1451 | if (ev_is_active (&pipeev)) |
882 | { |
1452 | { |
883 | /* default loop */ |
1453 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1454 | /* while we modify the fd vars */ |
|
|
1455 | gotsig = 1; |
|
|
1456 | #if EV_ASYNC_ENABLE |
|
|
1457 | gotasync = 1; |
|
|
1458 | #endif |
884 | |
1459 | |
885 | ev_ref (EV_A); |
1460 | ev_ref (EV_A); |
886 | ev_io_stop (EV_A_ &sigev); |
1461 | ev_io_stop (EV_A_ &pipeev); |
|
|
1462 | |
|
|
1463 | #if EV_USE_EVENTFD |
|
|
1464 | if (evfd >= 0) |
|
|
1465 | close (evfd); |
|
|
1466 | #endif |
|
|
1467 | |
|
|
1468 | if (evpipe [0] >= 0) |
|
|
1469 | { |
887 | close (sigpipe [0]); |
1470 | close (evpipe [0]); |
888 | close (sigpipe [1]); |
1471 | close (evpipe [1]); |
|
|
1472 | } |
889 | |
1473 | |
890 | while (pipe (sigpipe)) |
|
|
891 | syserr ("(libev) error creating pipe"); |
|
|
892 | |
|
|
893 | siginit (EV_A); |
1474 | evpipe_init (EV_A); |
|
|
1475 | /* now iterate over everything, in case we missed something */ |
|
|
1476 | pipecb (EV_A_ &pipeev, EV_READ); |
894 | } |
1477 | } |
895 | |
1478 | |
896 | postfork = 0; |
1479 | postfork = 0; |
897 | } |
1480 | } |
898 | |
1481 | |
899 | #if EV_MULTIPLICITY |
1482 | #if EV_MULTIPLICITY |
|
|
1483 | |
900 | struct ev_loop * |
1484 | struct ev_loop * |
901 | ev_loop_new (unsigned int flags) |
1485 | ev_loop_new (unsigned int flags) |
902 | { |
1486 | { |
903 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1487 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
904 | |
1488 | |
905 | memset (loop, 0, sizeof (struct ev_loop)); |
1489 | memset (loop, 0, sizeof (struct ev_loop)); |
906 | |
1490 | |
907 | loop_init (EV_A_ flags); |
1491 | loop_init (EV_A_ flags); |
908 | |
1492 | |
909 | if (ev_method (EV_A)) |
1493 | if (ev_backend (EV_A)) |
910 | return loop; |
1494 | return loop; |
911 | |
1495 | |
912 | return 0; |
1496 | return 0; |
913 | } |
1497 | } |
914 | |
1498 | |
… | |
… | |
920 | } |
1504 | } |
921 | |
1505 | |
922 | void |
1506 | void |
923 | ev_loop_fork (EV_P) |
1507 | ev_loop_fork (EV_P) |
924 | { |
1508 | { |
925 | postfork = 1; |
1509 | postfork = 1; /* must be in line with ev_default_fork */ |
926 | } |
1510 | } |
927 | |
1511 | |
|
|
1512 | #if EV_VERIFY |
|
|
1513 | void noinline |
|
|
1514 | verify_watcher (EV_P_ W w) |
|
|
1515 | { |
|
|
1516 | assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1517 | |
|
|
1518 | if (w->pending) |
|
|
1519 | assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1520 | } |
|
|
1521 | |
|
|
1522 | static void noinline |
|
|
1523 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1524 | { |
|
|
1525 | int i; |
|
|
1526 | |
|
|
1527 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1528 | { |
|
|
1529 | assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1530 | assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1531 | assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1532 | |
|
|
1533 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1534 | } |
|
|
1535 | } |
|
|
1536 | |
|
|
1537 | static void noinline |
|
|
1538 | array_verify (EV_P_ W *ws, int cnt) |
|
|
1539 | { |
|
|
1540 | while (cnt--) |
|
|
1541 | { |
|
|
1542 | assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1543 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1544 | } |
|
|
1545 | } |
|
|
1546 | #endif |
|
|
1547 | |
|
|
1548 | void |
|
|
1549 | ev_loop_verify (EV_P) |
|
|
1550 | { |
|
|
1551 | #if EV_VERIFY |
|
|
1552 | int i; |
|
|
1553 | WL w; |
|
|
1554 | |
|
|
1555 | assert (activecnt >= -1); |
|
|
1556 | |
|
|
1557 | assert (fdchangemax >= fdchangecnt); |
|
|
1558 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1559 | assert (("negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1560 | |
|
|
1561 | assert (anfdmax >= 0); |
|
|
1562 | for (i = 0; i < anfdmax; ++i) |
|
|
1563 | for (w = anfds [i].head; w; w = w->next) |
|
|
1564 | { |
|
|
1565 | verify_watcher (EV_A_ (W)w); |
|
|
1566 | assert (("inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1567 | assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1568 | } |
|
|
1569 | |
|
|
1570 | assert (timermax >= timercnt); |
|
|
1571 | verify_heap (EV_A_ timers, timercnt); |
|
|
1572 | |
|
|
1573 | #if EV_PERIODIC_ENABLE |
|
|
1574 | assert (periodicmax >= periodiccnt); |
|
|
1575 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
1576 | #endif |
|
|
1577 | |
|
|
1578 | for (i = NUMPRI; i--; ) |
|
|
1579 | { |
|
|
1580 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
1581 | #if EV_IDLE_ENABLE |
|
|
1582 | assert (idleall >= 0); |
|
|
1583 | assert (idlemax [i] >= idlecnt [i]); |
|
|
1584 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
1585 | #endif |
|
|
1586 | } |
|
|
1587 | |
|
|
1588 | #if EV_FORK_ENABLE |
|
|
1589 | assert (forkmax >= forkcnt); |
|
|
1590 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
1591 | #endif |
|
|
1592 | |
|
|
1593 | #if EV_ASYNC_ENABLE |
|
|
1594 | assert (asyncmax >= asynccnt); |
|
|
1595 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
1596 | #endif |
|
|
1597 | |
|
|
1598 | assert (preparemax >= preparecnt); |
|
|
1599 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1600 | |
|
|
1601 | assert (checkmax >= checkcnt); |
|
|
1602 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1603 | |
|
|
1604 | # if 0 |
|
|
1605 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1606 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
928 | #endif |
1607 | # endif |
|
|
1608 | #endif |
|
|
1609 | } |
|
|
1610 | |
|
|
1611 | #endif /* multiplicity */ |
929 | |
1612 | |
930 | #if EV_MULTIPLICITY |
1613 | #if EV_MULTIPLICITY |
931 | struct ev_loop * |
1614 | struct ev_loop * |
932 | ev_default_loop_init (unsigned int flags) |
1615 | ev_default_loop_init (unsigned int flags) |
933 | #else |
1616 | #else |
934 | int |
1617 | int |
935 | ev_default_loop (unsigned int flags) |
1618 | ev_default_loop (unsigned int flags) |
936 | #endif |
1619 | #endif |
937 | { |
1620 | { |
938 | if (sigpipe [0] == sigpipe [1]) |
|
|
939 | if (pipe (sigpipe)) |
|
|
940 | return 0; |
|
|
941 | |
|
|
942 | if (!ev_default_loop_ptr) |
1621 | if (!ev_default_loop_ptr) |
943 | { |
1622 | { |
944 | #if EV_MULTIPLICITY |
1623 | #if EV_MULTIPLICITY |
945 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1624 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
946 | #else |
1625 | #else |
947 | ev_default_loop_ptr = 1; |
1626 | ev_default_loop_ptr = 1; |
948 | #endif |
1627 | #endif |
949 | |
1628 | |
950 | loop_init (EV_A_ flags); |
1629 | loop_init (EV_A_ flags); |
951 | |
1630 | |
952 | if (ev_method (EV_A)) |
1631 | if (ev_backend (EV_A)) |
953 | { |
1632 | { |
954 | siginit (EV_A); |
|
|
955 | |
|
|
956 | #ifndef _WIN32 |
1633 | #ifndef _WIN32 |
957 | ev_signal_init (&childev, childcb, SIGCHLD); |
1634 | ev_signal_init (&childev, childcb, SIGCHLD); |
958 | ev_set_priority (&childev, EV_MAXPRI); |
1635 | ev_set_priority (&childev, EV_MAXPRI); |
959 | ev_signal_start (EV_A_ &childev); |
1636 | ev_signal_start (EV_A_ &childev); |
960 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1637 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
… | |
… | |
977 | #ifndef _WIN32 |
1654 | #ifndef _WIN32 |
978 | ev_ref (EV_A); /* child watcher */ |
1655 | ev_ref (EV_A); /* child watcher */ |
979 | ev_signal_stop (EV_A_ &childev); |
1656 | ev_signal_stop (EV_A_ &childev); |
980 | #endif |
1657 | #endif |
981 | |
1658 | |
982 | ev_ref (EV_A); /* signal watcher */ |
|
|
983 | ev_io_stop (EV_A_ &sigev); |
|
|
984 | |
|
|
985 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
986 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
987 | |
|
|
988 | loop_destroy (EV_A); |
1659 | loop_destroy (EV_A); |
989 | } |
1660 | } |
990 | |
1661 | |
991 | void |
1662 | void |
992 | ev_default_fork (void) |
1663 | ev_default_fork (void) |
993 | { |
1664 | { |
994 | #if EV_MULTIPLICITY |
1665 | #if EV_MULTIPLICITY |
995 | struct ev_loop *loop = ev_default_loop_ptr; |
1666 | struct ev_loop *loop = ev_default_loop_ptr; |
996 | #endif |
1667 | #endif |
997 | |
1668 | |
998 | if (method) |
1669 | if (backend) |
999 | postfork = 1; |
1670 | postfork = 1; /* must be in line with ev_loop_fork */ |
1000 | } |
1671 | } |
1001 | |
1672 | |
1002 | /*****************************************************************************/ |
1673 | /*****************************************************************************/ |
1003 | |
1674 | |
1004 | static int |
1675 | void |
1005 | any_pending (EV_P) |
1676 | ev_invoke (EV_P_ void *w, int revents) |
1006 | { |
1677 | { |
1007 | int pri; |
1678 | EV_CB_INVOKE ((W)w, revents); |
1008 | |
|
|
1009 | for (pri = NUMPRI; pri--; ) |
|
|
1010 | if (pendingcnt [pri]) |
|
|
1011 | return 1; |
|
|
1012 | |
|
|
1013 | return 0; |
|
|
1014 | } |
1679 | } |
1015 | |
1680 | |
1016 | inline void |
1681 | void inline_speed |
1017 | call_pending (EV_P) |
1682 | call_pending (EV_P) |
1018 | { |
1683 | { |
1019 | int pri; |
1684 | int pri; |
1020 | |
1685 | |
1021 | for (pri = NUMPRI; pri--; ) |
1686 | for (pri = NUMPRI; pri--; ) |
… | |
… | |
1023 | { |
1688 | { |
1024 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1689 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1025 | |
1690 | |
1026 | if (expect_true (p->w)) |
1691 | if (expect_true (p->w)) |
1027 | { |
1692 | { |
|
|
1693 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1694 | |
1028 | p->w->pending = 0; |
1695 | p->w->pending = 0; |
1029 | EV_CB_INVOKE (p->w, p->events); |
1696 | EV_CB_INVOKE (p->w, p->events); |
|
|
1697 | EV_FREQUENT_CHECK; |
1030 | } |
1698 | } |
1031 | } |
1699 | } |
1032 | } |
1700 | } |
1033 | |
1701 | |
1034 | inline void |
1702 | #if EV_IDLE_ENABLE |
|
|
1703 | void inline_size |
|
|
1704 | idle_reify (EV_P) |
|
|
1705 | { |
|
|
1706 | if (expect_false (idleall)) |
|
|
1707 | { |
|
|
1708 | int pri; |
|
|
1709 | |
|
|
1710 | for (pri = NUMPRI; pri--; ) |
|
|
1711 | { |
|
|
1712 | if (pendingcnt [pri]) |
|
|
1713 | break; |
|
|
1714 | |
|
|
1715 | if (idlecnt [pri]) |
|
|
1716 | { |
|
|
1717 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
|
|
1718 | break; |
|
|
1719 | } |
|
|
1720 | } |
|
|
1721 | } |
|
|
1722 | } |
|
|
1723 | #endif |
|
|
1724 | |
|
|
1725 | void inline_size |
1035 | timers_reify (EV_P) |
1726 | timers_reify (EV_P) |
1036 | { |
1727 | { |
|
|
1728 | EV_FREQUENT_CHECK; |
|
|
1729 | |
1037 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1730 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1038 | { |
1731 | { |
1039 | struct ev_timer *w = timers [0]; |
1732 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
1040 | |
1733 | |
1041 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
1734 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
1042 | |
1735 | |
1043 | /* first reschedule or stop timer */ |
1736 | /* first reschedule or stop timer */ |
1044 | if (w->repeat) |
1737 | if (w->repeat) |
1045 | { |
1738 | { |
|
|
1739 | ev_at (w) += w->repeat; |
|
|
1740 | if (ev_at (w) < mn_now) |
|
|
1741 | ev_at (w) = mn_now; |
|
|
1742 | |
1046 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1743 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1047 | |
1744 | |
1048 | ((WT)w)->at += w->repeat; |
1745 | ANHE_at_cache (timers [HEAP0]); |
1049 | if (((WT)w)->at < mn_now) |
|
|
1050 | ((WT)w)->at = mn_now; |
|
|
1051 | |
|
|
1052 | downheap ((WT *)timers, timercnt, 0); |
1746 | downheap (timers, timercnt, HEAP0); |
1053 | } |
1747 | } |
1054 | else |
1748 | else |
1055 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1749 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1056 | |
1750 | |
|
|
1751 | EV_FREQUENT_CHECK; |
1057 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1752 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1058 | } |
1753 | } |
1059 | } |
1754 | } |
1060 | |
1755 | |
1061 | #if EV_PERIODICS |
1756 | #if EV_PERIODIC_ENABLE |
1062 | inline void |
1757 | void inline_size |
1063 | periodics_reify (EV_P) |
1758 | periodics_reify (EV_P) |
1064 | { |
1759 | { |
|
|
1760 | EV_FREQUENT_CHECK; |
|
|
1761 | |
1065 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1762 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1066 | { |
1763 | { |
1067 | struct ev_periodic *w = periodics [0]; |
1764 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
1068 | |
1765 | |
1069 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
1766 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1070 | |
1767 | |
1071 | /* first reschedule or stop timer */ |
1768 | /* first reschedule or stop timer */ |
1072 | if (w->reschedule_cb) |
1769 | if (w->reschedule_cb) |
1073 | { |
1770 | { |
1074 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
1771 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1772 | |
1075 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
1773 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
1774 | |
|
|
1775 | ANHE_at_cache (periodics [HEAP0]); |
1076 | downheap ((WT *)periodics, periodiccnt, 0); |
1776 | downheap (periodics, periodiccnt, HEAP0); |
1077 | } |
1777 | } |
1078 | else if (w->interval) |
1778 | else if (w->interval) |
1079 | { |
1779 | { |
1080 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
1780 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1081 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
1781 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1782 | /* this might happen because of floating point inexactness */ |
|
|
1783 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1784 | { |
|
|
1785 | ev_at (w) += w->interval; |
|
|
1786 | |
|
|
1787 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1788 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1789 | /* has effectively asked to get triggered more often than possible */ |
|
|
1790 | if (ev_at (w) < ev_rt_now) |
|
|
1791 | ev_at (w) = ev_rt_now; |
|
|
1792 | } |
|
|
1793 | |
|
|
1794 | ANHE_at_cache (periodics [HEAP0]); |
1082 | downheap ((WT *)periodics, periodiccnt, 0); |
1795 | downheap (periodics, periodiccnt, HEAP0); |
1083 | } |
1796 | } |
1084 | else |
1797 | else |
1085 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1798 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1086 | |
1799 | |
|
|
1800 | EV_FREQUENT_CHECK; |
1087 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1801 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1088 | } |
1802 | } |
1089 | } |
1803 | } |
1090 | |
1804 | |
1091 | static void |
1805 | static void noinline |
1092 | periodics_reschedule (EV_P) |
1806 | periodics_reschedule (EV_P) |
1093 | { |
1807 | { |
1094 | int i; |
1808 | int i; |
1095 | |
1809 | |
1096 | /* adjust periodics after time jump */ |
1810 | /* adjust periodics after time jump */ |
1097 | for (i = 0; i < periodiccnt; ++i) |
1811 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
1098 | { |
1812 | { |
1099 | struct ev_periodic *w = periodics [i]; |
1813 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
1100 | |
1814 | |
1101 | if (w->reschedule_cb) |
1815 | if (w->reschedule_cb) |
1102 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1816 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1103 | else if (w->interval) |
1817 | else if (w->interval) |
1104 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1818 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1819 | |
|
|
1820 | ANHE_at_cache (periodics [i]); |
|
|
1821 | } |
|
|
1822 | |
|
|
1823 | reheap (periodics, periodiccnt); |
|
|
1824 | } |
|
|
1825 | #endif |
|
|
1826 | |
|
|
1827 | void inline_speed |
|
|
1828 | time_update (EV_P_ ev_tstamp max_block) |
|
|
1829 | { |
|
|
1830 | int i; |
|
|
1831 | |
|
|
1832 | #if EV_USE_MONOTONIC |
|
|
1833 | if (expect_true (have_monotonic)) |
1105 | } |
1834 | { |
|
|
1835 | ev_tstamp odiff = rtmn_diff; |
1106 | |
1836 | |
1107 | /* now rebuild the heap */ |
|
|
1108 | for (i = periodiccnt >> 1; i--; ) |
|
|
1109 | downheap ((WT *)periodics, periodiccnt, i); |
|
|
1110 | } |
|
|
1111 | #endif |
|
|
1112 | |
|
|
1113 | inline int |
|
|
1114 | time_update_monotonic (EV_P) |
|
|
1115 | { |
|
|
1116 | mn_now = get_clock (); |
1837 | mn_now = get_clock (); |
1117 | |
1838 | |
|
|
1839 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
1840 | /* interpolate in the meantime */ |
1118 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1841 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1119 | { |
1842 | { |
1120 | ev_rt_now = rtmn_diff + mn_now; |
1843 | ev_rt_now = rtmn_diff + mn_now; |
1121 | return 0; |
1844 | return; |
1122 | } |
1845 | } |
1123 | else |
1846 | |
1124 | { |
|
|
1125 | now_floor = mn_now; |
1847 | now_floor = mn_now; |
1126 | ev_rt_now = ev_time (); |
1848 | ev_rt_now = ev_time (); |
1127 | return 1; |
|
|
1128 | } |
|
|
1129 | } |
|
|
1130 | |
1849 | |
1131 | inline void |
1850 | /* loop a few times, before making important decisions. |
1132 | time_update (EV_P) |
1851 | * on the choice of "4": one iteration isn't enough, |
1133 | { |
1852 | * in case we get preempted during the calls to |
1134 | int i; |
1853 | * ev_time and get_clock. a second call is almost guaranteed |
1135 | |
1854 | * to succeed in that case, though. and looping a few more times |
1136 | #if EV_USE_MONOTONIC |
1855 | * doesn't hurt either as we only do this on time-jumps or |
1137 | if (expect_true (have_monotonic)) |
1856 | * in the unlikely event of having been preempted here. |
1138 | { |
1857 | */ |
1139 | if (time_update_monotonic (EV_A)) |
1858 | for (i = 4; --i; ) |
1140 | { |
1859 | { |
1141 | ev_tstamp odiff = rtmn_diff; |
1860 | rtmn_diff = ev_rt_now - mn_now; |
1142 | |
1861 | |
1143 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
1862 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
|
|
1863 | return; /* all is well */ |
|
|
1864 | |
|
|
1865 | ev_rt_now = ev_time (); |
|
|
1866 | mn_now = get_clock (); |
|
|
1867 | now_floor = mn_now; |
|
|
1868 | } |
|
|
1869 | |
|
|
1870 | # if EV_PERIODIC_ENABLE |
|
|
1871 | periodics_reschedule (EV_A); |
|
|
1872 | # endif |
|
|
1873 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1874 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1875 | } |
|
|
1876 | else |
|
|
1877 | #endif |
|
|
1878 | { |
|
|
1879 | ev_rt_now = ev_time (); |
|
|
1880 | |
|
|
1881 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
|
|
1882 | { |
|
|
1883 | #if EV_PERIODIC_ENABLE |
|
|
1884 | periodics_reschedule (EV_A); |
|
|
1885 | #endif |
|
|
1886 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1887 | for (i = 0; i < timercnt; ++i) |
1144 | { |
1888 | { |
1145 | rtmn_diff = ev_rt_now - mn_now; |
1889 | ANHE *he = timers + i + HEAP0; |
1146 | |
1890 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
1147 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1891 | ANHE_at_cache (*he); |
1148 | return; /* all is well */ |
|
|
1149 | |
|
|
1150 | ev_rt_now = ev_time (); |
|
|
1151 | mn_now = get_clock (); |
|
|
1152 | now_floor = mn_now; |
|
|
1153 | } |
1892 | } |
1154 | |
|
|
1155 | # if EV_PERIODICS |
|
|
1156 | periodics_reschedule (EV_A); |
|
|
1157 | # endif |
|
|
1158 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1159 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1160 | } |
1893 | } |
1161 | } |
|
|
1162 | else |
|
|
1163 | #endif |
|
|
1164 | { |
|
|
1165 | ev_rt_now = ev_time (); |
|
|
1166 | |
|
|
1167 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
|
|
1168 | { |
|
|
1169 | #if EV_PERIODICS |
|
|
1170 | periodics_reschedule (EV_A); |
|
|
1171 | #endif |
|
|
1172 | |
|
|
1173 | /* adjust timers. this is easy, as the offset is the same for all */ |
|
|
1174 | for (i = 0; i < timercnt; ++i) |
|
|
1175 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
|
|
1176 | } |
|
|
1177 | |
1894 | |
1178 | mn_now = ev_rt_now; |
1895 | mn_now = ev_rt_now; |
1179 | } |
1896 | } |
1180 | } |
1897 | } |
1181 | |
1898 | |
… | |
… | |
1194 | static int loop_done; |
1911 | static int loop_done; |
1195 | |
1912 | |
1196 | void |
1913 | void |
1197 | ev_loop (EV_P_ int flags) |
1914 | ev_loop (EV_P_ int flags) |
1198 | { |
1915 | { |
1199 | double block; |
1916 | loop_done = EVUNLOOP_CANCEL; |
1200 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
|
|
1201 | |
1917 | |
1202 | while (activecnt) |
1918 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
|
|
1919 | |
|
|
1920 | do |
1203 | { |
1921 | { |
|
|
1922 | #if EV_VERIFY >= 2 |
|
|
1923 | ev_loop_verify (EV_A); |
|
|
1924 | #endif |
|
|
1925 | |
|
|
1926 | #ifndef _WIN32 |
|
|
1927 | if (expect_false (curpid)) /* penalise the forking check even more */ |
|
|
1928 | if (expect_false (getpid () != curpid)) |
|
|
1929 | { |
|
|
1930 | curpid = getpid (); |
|
|
1931 | postfork = 1; |
|
|
1932 | } |
|
|
1933 | #endif |
|
|
1934 | |
|
|
1935 | #if EV_FORK_ENABLE |
|
|
1936 | /* we might have forked, so queue fork handlers */ |
|
|
1937 | if (expect_false (postfork)) |
|
|
1938 | if (forkcnt) |
|
|
1939 | { |
|
|
1940 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
|
|
1941 | call_pending (EV_A); |
|
|
1942 | } |
|
|
1943 | #endif |
|
|
1944 | |
1204 | /* queue check watchers (and execute them) */ |
1945 | /* queue prepare watchers (and execute them) */ |
1205 | if (expect_false (preparecnt)) |
1946 | if (expect_false (preparecnt)) |
1206 | { |
1947 | { |
1207 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1948 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1208 | call_pending (EV_A); |
1949 | call_pending (EV_A); |
1209 | } |
1950 | } |
1210 | |
1951 | |
|
|
1952 | if (expect_false (!activecnt)) |
|
|
1953 | break; |
|
|
1954 | |
1211 | /* we might have forked, so reify kernel state if necessary */ |
1955 | /* we might have forked, so reify kernel state if necessary */ |
1212 | if (expect_false (postfork)) |
1956 | if (expect_false (postfork)) |
1213 | loop_fork (EV_A); |
1957 | loop_fork (EV_A); |
1214 | |
1958 | |
1215 | /* update fd-related kernel structures */ |
1959 | /* update fd-related kernel structures */ |
1216 | fd_reify (EV_A); |
1960 | fd_reify (EV_A); |
1217 | |
1961 | |
1218 | /* calculate blocking time */ |
1962 | /* calculate blocking time */ |
|
|
1963 | { |
|
|
1964 | ev_tstamp waittime = 0.; |
|
|
1965 | ev_tstamp sleeptime = 0.; |
1219 | |
1966 | |
1220 | /* we only need this for !monotonic clock or timers, but as we basically |
1967 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1221 | always have timers, we just calculate it always */ |
|
|
1222 | #if EV_USE_MONOTONIC |
|
|
1223 | if (expect_true (have_monotonic)) |
|
|
1224 | time_update_monotonic (EV_A); |
|
|
1225 | else |
|
|
1226 | #endif |
|
|
1227 | { |
1968 | { |
1228 | ev_rt_now = ev_time (); |
1969 | /* update time to cancel out callback processing overhead */ |
1229 | mn_now = ev_rt_now; |
1970 | time_update (EV_A_ 1e100); |
1230 | } |
|
|
1231 | |
1971 | |
1232 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
|
|
1233 | block = 0.; |
|
|
1234 | else |
|
|
1235 | { |
|
|
1236 | block = MAX_BLOCKTIME; |
1972 | waittime = MAX_BLOCKTIME; |
1237 | |
1973 | |
1238 | if (timercnt) |
1974 | if (timercnt) |
1239 | { |
1975 | { |
1240 | ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; |
1976 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1241 | if (block > to) block = to; |
1977 | if (waittime > to) waittime = to; |
1242 | } |
1978 | } |
1243 | |
1979 | |
1244 | #if EV_PERIODICS |
1980 | #if EV_PERIODIC_ENABLE |
1245 | if (periodiccnt) |
1981 | if (periodiccnt) |
1246 | { |
1982 | { |
1247 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + method_fudge; |
1983 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1248 | if (block > to) block = to; |
1984 | if (waittime > to) waittime = to; |
1249 | } |
1985 | } |
1250 | #endif |
1986 | #endif |
1251 | |
1987 | |
1252 | if (expect_false (block < 0.)) block = 0.; |
1988 | if (expect_false (waittime < timeout_blocktime)) |
|
|
1989 | waittime = timeout_blocktime; |
|
|
1990 | |
|
|
1991 | sleeptime = waittime - backend_fudge; |
|
|
1992 | |
|
|
1993 | if (expect_true (sleeptime > io_blocktime)) |
|
|
1994 | sleeptime = io_blocktime; |
|
|
1995 | |
|
|
1996 | if (sleeptime) |
|
|
1997 | { |
|
|
1998 | ev_sleep (sleeptime); |
|
|
1999 | waittime -= sleeptime; |
|
|
2000 | } |
1253 | } |
2001 | } |
1254 | |
2002 | |
1255 | method_poll (EV_A_ block); |
2003 | ++loop_count; |
|
|
2004 | backend_poll (EV_A_ waittime); |
1256 | |
2005 | |
1257 | /* update ev_rt_now, do magic */ |
2006 | /* update ev_rt_now, do magic */ |
1258 | time_update (EV_A); |
2007 | time_update (EV_A_ waittime + sleeptime); |
|
|
2008 | } |
1259 | |
2009 | |
1260 | /* queue pending timers and reschedule them */ |
2010 | /* queue pending timers and reschedule them */ |
1261 | timers_reify (EV_A); /* relative timers called last */ |
2011 | timers_reify (EV_A); /* relative timers called last */ |
1262 | #if EV_PERIODICS |
2012 | #if EV_PERIODIC_ENABLE |
1263 | periodics_reify (EV_A); /* absolute timers called first */ |
2013 | periodics_reify (EV_A); /* absolute timers called first */ |
1264 | #endif |
2014 | #endif |
1265 | |
2015 | |
|
|
2016 | #if EV_IDLE_ENABLE |
1266 | /* queue idle watchers unless io or timers are pending */ |
2017 | /* queue idle watchers unless other events are pending */ |
1267 | if (idlecnt && !any_pending (EV_A)) |
2018 | idle_reify (EV_A); |
1268 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
2019 | #endif |
1269 | |
2020 | |
1270 | /* queue check watchers, to be executed first */ |
2021 | /* queue check watchers, to be executed first */ |
1271 | if (expect_false (checkcnt)) |
2022 | if (expect_false (checkcnt)) |
1272 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2023 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1273 | |
2024 | |
1274 | call_pending (EV_A); |
2025 | call_pending (EV_A); |
1275 | |
|
|
1276 | if (expect_false (loop_done)) |
|
|
1277 | break; |
|
|
1278 | } |
2026 | } |
|
|
2027 | while (expect_true ( |
|
|
2028 | activecnt |
|
|
2029 | && !loop_done |
|
|
2030 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
2031 | )); |
1279 | |
2032 | |
1280 | if (loop_done != 2) |
2033 | if (loop_done == EVUNLOOP_ONE) |
1281 | loop_done = 0; |
2034 | loop_done = EVUNLOOP_CANCEL; |
1282 | } |
2035 | } |
1283 | |
2036 | |
1284 | void |
2037 | void |
1285 | ev_unloop (EV_P_ int how) |
2038 | ev_unloop (EV_P_ int how) |
1286 | { |
2039 | { |
1287 | loop_done = how; |
2040 | loop_done = how; |
1288 | } |
2041 | } |
1289 | |
2042 | |
1290 | /*****************************************************************************/ |
2043 | /*****************************************************************************/ |
1291 | |
2044 | |
1292 | inline void |
2045 | void inline_size |
1293 | wlist_add (WL *head, WL elem) |
2046 | wlist_add (WL *head, WL elem) |
1294 | { |
2047 | { |
1295 | elem->next = *head; |
2048 | elem->next = *head; |
1296 | *head = elem; |
2049 | *head = elem; |
1297 | } |
2050 | } |
1298 | |
2051 | |
1299 | inline void |
2052 | void inline_size |
1300 | wlist_del (WL *head, WL elem) |
2053 | wlist_del (WL *head, WL elem) |
1301 | { |
2054 | { |
1302 | while (*head) |
2055 | while (*head) |
1303 | { |
2056 | { |
1304 | if (*head == elem) |
2057 | if (*head == elem) |
… | |
… | |
1309 | |
2062 | |
1310 | head = &(*head)->next; |
2063 | head = &(*head)->next; |
1311 | } |
2064 | } |
1312 | } |
2065 | } |
1313 | |
2066 | |
1314 | inline void |
2067 | void inline_speed |
1315 | ev_clear_pending (EV_P_ W w) |
2068 | clear_pending (EV_P_ W w) |
1316 | { |
2069 | { |
1317 | if (w->pending) |
2070 | if (w->pending) |
1318 | { |
2071 | { |
1319 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2072 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1320 | w->pending = 0; |
2073 | w->pending = 0; |
1321 | } |
2074 | } |
1322 | } |
2075 | } |
1323 | |
2076 | |
1324 | inline void |
2077 | int |
|
|
2078 | ev_clear_pending (EV_P_ void *w) |
|
|
2079 | { |
|
|
2080 | W w_ = (W)w; |
|
|
2081 | int pending = w_->pending; |
|
|
2082 | |
|
|
2083 | if (expect_true (pending)) |
|
|
2084 | { |
|
|
2085 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2086 | w_->pending = 0; |
|
|
2087 | p->w = 0; |
|
|
2088 | return p->events; |
|
|
2089 | } |
|
|
2090 | else |
|
|
2091 | return 0; |
|
|
2092 | } |
|
|
2093 | |
|
|
2094 | void inline_size |
|
|
2095 | pri_adjust (EV_P_ W w) |
|
|
2096 | { |
|
|
2097 | int pri = w->priority; |
|
|
2098 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
|
|
2099 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
|
|
2100 | w->priority = pri; |
|
|
2101 | } |
|
|
2102 | |
|
|
2103 | void inline_speed |
1325 | ev_start (EV_P_ W w, int active) |
2104 | ev_start (EV_P_ W w, int active) |
1326 | { |
2105 | { |
1327 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
2106 | pri_adjust (EV_A_ w); |
1328 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
1329 | |
|
|
1330 | w->active = active; |
2107 | w->active = active; |
1331 | ev_ref (EV_A); |
2108 | ev_ref (EV_A); |
1332 | } |
2109 | } |
1333 | |
2110 | |
1334 | inline void |
2111 | void inline_size |
1335 | ev_stop (EV_P_ W w) |
2112 | ev_stop (EV_P_ W w) |
1336 | { |
2113 | { |
1337 | ev_unref (EV_A); |
2114 | ev_unref (EV_A); |
1338 | w->active = 0; |
2115 | w->active = 0; |
1339 | } |
2116 | } |
1340 | |
2117 | |
1341 | /*****************************************************************************/ |
2118 | /*****************************************************************************/ |
1342 | |
2119 | |
1343 | void |
2120 | void noinline |
1344 | ev_io_start (EV_P_ struct ev_io *w) |
2121 | ev_io_start (EV_P_ ev_io *w) |
1345 | { |
2122 | { |
1346 | int fd = w->fd; |
2123 | int fd = w->fd; |
1347 | |
2124 | |
1348 | if (expect_false (ev_is_active (w))) |
2125 | if (expect_false (ev_is_active (w))) |
1349 | return; |
2126 | return; |
1350 | |
2127 | |
1351 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2128 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1352 | |
2129 | |
|
|
2130 | EV_FREQUENT_CHECK; |
|
|
2131 | |
1353 | ev_start (EV_A_ (W)w, 1); |
2132 | ev_start (EV_A_ (W)w, 1); |
1354 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2133 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1355 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
2134 | wlist_add (&anfds[fd].head, (WL)w); |
1356 | |
2135 | |
1357 | fd_change (EV_A_ fd); |
2136 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
1358 | } |
2137 | w->events &= ~EV_IOFDSET; |
1359 | |
2138 | |
1360 | void |
2139 | EV_FREQUENT_CHECK; |
|
|
2140 | } |
|
|
2141 | |
|
|
2142 | void noinline |
1361 | ev_io_stop (EV_P_ struct ev_io *w) |
2143 | ev_io_stop (EV_P_ ev_io *w) |
1362 | { |
2144 | { |
1363 | ev_clear_pending (EV_A_ (W)w); |
2145 | clear_pending (EV_A_ (W)w); |
1364 | if (expect_false (!ev_is_active (w))) |
2146 | if (expect_false (!ev_is_active (w))) |
1365 | return; |
2147 | return; |
1366 | |
2148 | |
1367 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2149 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1368 | |
2150 | |
|
|
2151 | EV_FREQUENT_CHECK; |
|
|
2152 | |
1369 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
2153 | wlist_del (&anfds[w->fd].head, (WL)w); |
1370 | ev_stop (EV_A_ (W)w); |
2154 | ev_stop (EV_A_ (W)w); |
1371 | |
2155 | |
1372 | fd_change (EV_A_ w->fd); |
2156 | fd_change (EV_A_ w->fd, 1); |
1373 | } |
|
|
1374 | |
2157 | |
1375 | void |
2158 | EV_FREQUENT_CHECK; |
|
|
2159 | } |
|
|
2160 | |
|
|
2161 | void noinline |
1376 | ev_timer_start (EV_P_ struct ev_timer *w) |
2162 | ev_timer_start (EV_P_ ev_timer *w) |
1377 | { |
2163 | { |
1378 | if (expect_false (ev_is_active (w))) |
2164 | if (expect_false (ev_is_active (w))) |
1379 | return; |
2165 | return; |
1380 | |
2166 | |
1381 | ((WT)w)->at += mn_now; |
2167 | ev_at (w) += mn_now; |
1382 | |
2168 | |
1383 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2169 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1384 | |
2170 | |
|
|
2171 | EV_FREQUENT_CHECK; |
|
|
2172 | |
|
|
2173 | ++timercnt; |
1385 | ev_start (EV_A_ (W)w, ++timercnt); |
2174 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1386 | array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2); |
2175 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1387 | timers [timercnt - 1] = w; |
2176 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1388 | upheap ((WT *)timers, timercnt - 1); |
2177 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
2178 | upheap (timers, ev_active (w)); |
1389 | |
2179 | |
|
|
2180 | EV_FREQUENT_CHECK; |
|
|
2181 | |
1390 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
2182 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1391 | } |
2183 | } |
1392 | |
2184 | |
1393 | void |
2185 | void noinline |
1394 | ev_timer_stop (EV_P_ struct ev_timer *w) |
2186 | ev_timer_stop (EV_P_ ev_timer *w) |
1395 | { |
2187 | { |
1396 | ev_clear_pending (EV_A_ (W)w); |
2188 | clear_pending (EV_A_ (W)w); |
1397 | if (expect_false (!ev_is_active (w))) |
2189 | if (expect_false (!ev_is_active (w))) |
1398 | return; |
2190 | return; |
1399 | |
2191 | |
|
|
2192 | EV_FREQUENT_CHECK; |
|
|
2193 | |
|
|
2194 | { |
|
|
2195 | int active = ev_active (w); |
|
|
2196 | |
1400 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
2197 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
1401 | |
2198 | |
|
|
2199 | --timercnt; |
|
|
2200 | |
1402 | if (expect_true (((W)w)->active < timercnt--)) |
2201 | if (expect_true (active < timercnt + HEAP0)) |
1403 | { |
2202 | { |
1404 | timers [((W)w)->active - 1] = timers [timercnt]; |
2203 | timers [active] = timers [timercnt + HEAP0]; |
1405 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
2204 | adjustheap (timers, timercnt, active); |
1406 | } |
2205 | } |
|
|
2206 | } |
1407 | |
2207 | |
1408 | ((WT)w)->at -= mn_now; |
2208 | EV_FREQUENT_CHECK; |
|
|
2209 | |
|
|
2210 | ev_at (w) -= mn_now; |
1409 | |
2211 | |
1410 | ev_stop (EV_A_ (W)w); |
2212 | ev_stop (EV_A_ (W)w); |
1411 | } |
2213 | } |
1412 | |
2214 | |
1413 | void |
2215 | void noinline |
1414 | ev_timer_again (EV_P_ struct ev_timer *w) |
2216 | ev_timer_again (EV_P_ ev_timer *w) |
1415 | { |
2217 | { |
|
|
2218 | EV_FREQUENT_CHECK; |
|
|
2219 | |
1416 | if (ev_is_active (w)) |
2220 | if (ev_is_active (w)) |
1417 | { |
2221 | { |
1418 | if (w->repeat) |
2222 | if (w->repeat) |
1419 | { |
2223 | { |
1420 | ((WT)w)->at = mn_now + w->repeat; |
2224 | ev_at (w) = mn_now + w->repeat; |
|
|
2225 | ANHE_at_cache (timers [ev_active (w)]); |
1421 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
2226 | adjustheap (timers, timercnt, ev_active (w)); |
1422 | } |
2227 | } |
1423 | else |
2228 | else |
1424 | ev_timer_stop (EV_A_ w); |
2229 | ev_timer_stop (EV_A_ w); |
1425 | } |
2230 | } |
1426 | else if (w->repeat) |
2231 | else if (w->repeat) |
1427 | { |
2232 | { |
1428 | w->at = w->repeat; |
2233 | ev_at (w) = w->repeat; |
1429 | ev_timer_start (EV_A_ w); |
2234 | ev_timer_start (EV_A_ w); |
1430 | } |
2235 | } |
1431 | } |
|
|
1432 | |
2236 | |
|
|
2237 | EV_FREQUENT_CHECK; |
|
|
2238 | } |
|
|
2239 | |
1433 | #if EV_PERIODICS |
2240 | #if EV_PERIODIC_ENABLE |
1434 | void |
2241 | void noinline |
1435 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
2242 | ev_periodic_start (EV_P_ ev_periodic *w) |
1436 | { |
2243 | { |
1437 | if (expect_false (ev_is_active (w))) |
2244 | if (expect_false (ev_is_active (w))) |
1438 | return; |
2245 | return; |
1439 | |
2246 | |
1440 | if (w->reschedule_cb) |
2247 | if (w->reschedule_cb) |
1441 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2248 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1442 | else if (w->interval) |
2249 | else if (w->interval) |
1443 | { |
2250 | { |
1444 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2251 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1445 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2252 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1446 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
2253 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1447 | } |
2254 | } |
|
|
2255 | else |
|
|
2256 | ev_at (w) = w->offset; |
1448 | |
2257 | |
|
|
2258 | EV_FREQUENT_CHECK; |
|
|
2259 | |
|
|
2260 | ++periodiccnt; |
1449 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2261 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
1450 | array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
2262 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1451 | periodics [periodiccnt - 1] = w; |
2263 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1452 | upheap ((WT *)periodics, periodiccnt - 1); |
2264 | ANHE_at_cache (periodics [ev_active (w)]); |
|
|
2265 | upheap (periodics, ev_active (w)); |
1453 | |
2266 | |
|
|
2267 | EV_FREQUENT_CHECK; |
|
|
2268 | |
1454 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
2269 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1455 | } |
2270 | } |
1456 | |
2271 | |
1457 | void |
2272 | void noinline |
1458 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
2273 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1459 | { |
2274 | { |
1460 | ev_clear_pending (EV_A_ (W)w); |
2275 | clear_pending (EV_A_ (W)w); |
1461 | if (expect_false (!ev_is_active (w))) |
2276 | if (expect_false (!ev_is_active (w))) |
1462 | return; |
2277 | return; |
1463 | |
2278 | |
|
|
2279 | EV_FREQUENT_CHECK; |
|
|
2280 | |
|
|
2281 | { |
|
|
2282 | int active = ev_active (w); |
|
|
2283 | |
1464 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
2284 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
1465 | |
2285 | |
|
|
2286 | --periodiccnt; |
|
|
2287 | |
1466 | if (expect_true (((W)w)->active < periodiccnt--)) |
2288 | if (expect_true (active < periodiccnt + HEAP0)) |
1467 | { |
2289 | { |
1468 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
2290 | periodics [active] = periodics [periodiccnt + HEAP0]; |
1469 | adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
2291 | adjustheap (periodics, periodiccnt, active); |
1470 | } |
2292 | } |
|
|
2293 | } |
|
|
2294 | |
|
|
2295 | EV_FREQUENT_CHECK; |
1471 | |
2296 | |
1472 | ev_stop (EV_A_ (W)w); |
2297 | ev_stop (EV_A_ (W)w); |
1473 | } |
2298 | } |
1474 | |
2299 | |
1475 | void |
2300 | void noinline |
1476 | ev_periodic_again (EV_P_ struct ev_periodic *w) |
2301 | ev_periodic_again (EV_P_ ev_periodic *w) |
1477 | { |
2302 | { |
1478 | /* TODO: use adjustheap and recalculation */ |
2303 | /* TODO: use adjustheap and recalculation */ |
1479 | ev_periodic_stop (EV_A_ w); |
2304 | ev_periodic_stop (EV_A_ w); |
1480 | ev_periodic_start (EV_A_ w); |
2305 | ev_periodic_start (EV_A_ w); |
1481 | } |
2306 | } |
1482 | #endif |
2307 | #endif |
1483 | |
2308 | |
1484 | void |
2309 | #ifndef SA_RESTART |
1485 | ev_idle_start (EV_P_ struct ev_idle *w) |
2310 | # define SA_RESTART 0 |
|
|
2311 | #endif |
|
|
2312 | |
|
|
2313 | void noinline |
|
|
2314 | ev_signal_start (EV_P_ ev_signal *w) |
1486 | { |
2315 | { |
|
|
2316 | #if EV_MULTIPLICITY |
|
|
2317 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2318 | #endif |
1487 | if (expect_false (ev_is_active (w))) |
2319 | if (expect_false (ev_is_active (w))) |
1488 | return; |
2320 | return; |
1489 | |
2321 | |
1490 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1491 | array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2); |
|
|
1492 | idles [idlecnt - 1] = w; |
|
|
1493 | } |
|
|
1494 | |
|
|
1495 | void |
|
|
1496 | ev_idle_stop (EV_P_ struct ev_idle *w) |
|
|
1497 | { |
|
|
1498 | ev_clear_pending (EV_A_ (W)w); |
|
|
1499 | if (expect_false (!ev_is_active (w))) |
|
|
1500 | return; |
|
|
1501 | |
|
|
1502 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
|
|
1503 | ev_stop (EV_A_ (W)w); |
|
|
1504 | } |
|
|
1505 | |
|
|
1506 | void |
|
|
1507 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
|
|
1508 | { |
|
|
1509 | if (expect_false (ev_is_active (w))) |
|
|
1510 | return; |
|
|
1511 | |
|
|
1512 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1513 | array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
|
|
1514 | prepares [preparecnt - 1] = w; |
|
|
1515 | } |
|
|
1516 | |
|
|
1517 | void |
|
|
1518 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
|
|
1519 | { |
|
|
1520 | ev_clear_pending (EV_A_ (W)w); |
|
|
1521 | if (expect_false (!ev_is_active (w))) |
|
|
1522 | return; |
|
|
1523 | |
|
|
1524 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
|
|
1525 | ev_stop (EV_A_ (W)w); |
|
|
1526 | } |
|
|
1527 | |
|
|
1528 | void |
|
|
1529 | ev_check_start (EV_P_ struct ev_check *w) |
|
|
1530 | { |
|
|
1531 | if (expect_false (ev_is_active (w))) |
|
|
1532 | return; |
|
|
1533 | |
|
|
1534 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1535 | array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2); |
|
|
1536 | checks [checkcnt - 1] = w; |
|
|
1537 | } |
|
|
1538 | |
|
|
1539 | void |
|
|
1540 | ev_check_stop (EV_P_ struct ev_check *w) |
|
|
1541 | { |
|
|
1542 | ev_clear_pending (EV_A_ (W)w); |
|
|
1543 | if (expect_false (!ev_is_active (w))) |
|
|
1544 | return; |
|
|
1545 | |
|
|
1546 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
|
|
1547 | ev_stop (EV_A_ (W)w); |
|
|
1548 | } |
|
|
1549 | |
|
|
1550 | #ifndef SA_RESTART |
|
|
1551 | # define SA_RESTART 0 |
|
|
1552 | #endif |
|
|
1553 | |
|
|
1554 | void |
|
|
1555 | ev_signal_start (EV_P_ struct ev_signal *w) |
|
|
1556 | { |
|
|
1557 | #if EV_MULTIPLICITY |
|
|
1558 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1559 | #endif |
|
|
1560 | if (expect_false (ev_is_active (w))) |
|
|
1561 | return; |
|
|
1562 | |
|
|
1563 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2322 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1564 | |
2323 | |
|
|
2324 | evpipe_init (EV_A); |
|
|
2325 | |
|
|
2326 | EV_FREQUENT_CHECK; |
|
|
2327 | |
|
|
2328 | { |
|
|
2329 | #ifndef _WIN32 |
|
|
2330 | sigset_t full, prev; |
|
|
2331 | sigfillset (&full); |
|
|
2332 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2333 | #endif |
|
|
2334 | |
|
|
2335 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
2336 | |
|
|
2337 | #ifndef _WIN32 |
|
|
2338 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
2339 | #endif |
|
|
2340 | } |
|
|
2341 | |
1565 | ev_start (EV_A_ (W)w, 1); |
2342 | ev_start (EV_A_ (W)w, 1); |
1566 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1567 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
2343 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1568 | |
2344 | |
1569 | if (!((WL)w)->next) |
2345 | if (!((WL)w)->next) |
1570 | { |
2346 | { |
1571 | #if _WIN32 |
2347 | #if _WIN32 |
1572 | signal (w->signum, sighandler); |
2348 | signal (w->signum, ev_sighandler); |
1573 | #else |
2349 | #else |
1574 | struct sigaction sa; |
2350 | struct sigaction sa; |
1575 | sa.sa_handler = sighandler; |
2351 | sa.sa_handler = ev_sighandler; |
1576 | sigfillset (&sa.sa_mask); |
2352 | sigfillset (&sa.sa_mask); |
1577 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2353 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1578 | sigaction (w->signum, &sa, 0); |
2354 | sigaction (w->signum, &sa, 0); |
1579 | #endif |
2355 | #endif |
1580 | } |
2356 | } |
1581 | } |
|
|
1582 | |
2357 | |
1583 | void |
2358 | EV_FREQUENT_CHECK; |
|
|
2359 | } |
|
|
2360 | |
|
|
2361 | void noinline |
1584 | ev_signal_stop (EV_P_ struct ev_signal *w) |
2362 | ev_signal_stop (EV_P_ ev_signal *w) |
1585 | { |
2363 | { |
1586 | ev_clear_pending (EV_A_ (W)w); |
2364 | clear_pending (EV_A_ (W)w); |
1587 | if (expect_false (!ev_is_active (w))) |
2365 | if (expect_false (!ev_is_active (w))) |
1588 | return; |
2366 | return; |
1589 | |
2367 | |
|
|
2368 | EV_FREQUENT_CHECK; |
|
|
2369 | |
1590 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
2370 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1591 | ev_stop (EV_A_ (W)w); |
2371 | ev_stop (EV_A_ (W)w); |
1592 | |
2372 | |
1593 | if (!signals [w->signum - 1].head) |
2373 | if (!signals [w->signum - 1].head) |
1594 | signal (w->signum, SIG_DFL); |
2374 | signal (w->signum, SIG_DFL); |
1595 | } |
|
|
1596 | |
2375 | |
|
|
2376 | EV_FREQUENT_CHECK; |
|
|
2377 | } |
|
|
2378 | |
1597 | void |
2379 | void |
1598 | ev_child_start (EV_P_ struct ev_child *w) |
2380 | ev_child_start (EV_P_ ev_child *w) |
1599 | { |
2381 | { |
1600 | #if EV_MULTIPLICITY |
2382 | #if EV_MULTIPLICITY |
1601 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2383 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1602 | #endif |
2384 | #endif |
1603 | if (expect_false (ev_is_active (w))) |
2385 | if (expect_false (ev_is_active (w))) |
1604 | return; |
2386 | return; |
1605 | |
2387 | |
|
|
2388 | EV_FREQUENT_CHECK; |
|
|
2389 | |
1606 | ev_start (EV_A_ (W)w, 1); |
2390 | ev_start (EV_A_ (W)w, 1); |
1607 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
2391 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1608 | } |
|
|
1609 | |
2392 | |
|
|
2393 | EV_FREQUENT_CHECK; |
|
|
2394 | } |
|
|
2395 | |
1610 | void |
2396 | void |
1611 | ev_child_stop (EV_P_ struct ev_child *w) |
2397 | ev_child_stop (EV_P_ ev_child *w) |
1612 | { |
2398 | { |
1613 | ev_clear_pending (EV_A_ (W)w); |
2399 | clear_pending (EV_A_ (W)w); |
1614 | if (expect_false (!ev_is_active (w))) |
2400 | if (expect_false (!ev_is_active (w))) |
1615 | return; |
2401 | return; |
1616 | |
2402 | |
|
|
2403 | EV_FREQUENT_CHECK; |
|
|
2404 | |
1617 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
2405 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1618 | ev_stop (EV_A_ (W)w); |
2406 | ev_stop (EV_A_ (W)w); |
|
|
2407 | |
|
|
2408 | EV_FREQUENT_CHECK; |
1619 | } |
2409 | } |
|
|
2410 | |
|
|
2411 | #if EV_STAT_ENABLE |
|
|
2412 | |
|
|
2413 | # ifdef _WIN32 |
|
|
2414 | # undef lstat |
|
|
2415 | # define lstat(a,b) _stati64 (a,b) |
|
|
2416 | # endif |
|
|
2417 | |
|
|
2418 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2419 | #define MIN_STAT_INTERVAL 0.1074891 |
|
|
2420 | |
|
|
2421 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
|
|
2422 | |
|
|
2423 | #if EV_USE_INOTIFY |
|
|
2424 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
2425 | |
|
|
2426 | static void noinline |
|
|
2427 | infy_add (EV_P_ ev_stat *w) |
|
|
2428 | { |
|
|
2429 | 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); |
|
|
2430 | |
|
|
2431 | if (w->wd < 0) |
|
|
2432 | { |
|
|
2433 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2434 | |
|
|
2435 | /* monitor some parent directory for speedup hints */ |
|
|
2436 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
|
|
2437 | /* but an efficiency issue only */ |
|
|
2438 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
|
|
2439 | { |
|
|
2440 | char path [4096]; |
|
|
2441 | strcpy (path, w->path); |
|
|
2442 | |
|
|
2443 | do |
|
|
2444 | { |
|
|
2445 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
|
|
2446 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
|
|
2447 | |
|
|
2448 | char *pend = strrchr (path, '/'); |
|
|
2449 | |
|
|
2450 | if (!pend) |
|
|
2451 | break; /* whoops, no '/', complain to your admin */ |
|
|
2452 | |
|
|
2453 | *pend = 0; |
|
|
2454 | w->wd = inotify_add_watch (fs_fd, path, mask); |
|
|
2455 | } |
|
|
2456 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
|
|
2457 | } |
|
|
2458 | } |
|
|
2459 | else |
|
|
2460 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2461 | |
|
|
2462 | if (w->wd >= 0) |
|
|
2463 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2464 | } |
|
|
2465 | |
|
|
2466 | static void noinline |
|
|
2467 | infy_del (EV_P_ ev_stat *w) |
|
|
2468 | { |
|
|
2469 | int slot; |
|
|
2470 | int wd = w->wd; |
|
|
2471 | |
|
|
2472 | if (wd < 0) |
|
|
2473 | return; |
|
|
2474 | |
|
|
2475 | w->wd = -2; |
|
|
2476 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
|
|
2477 | wlist_del (&fs_hash [slot].head, (WL)w); |
|
|
2478 | |
|
|
2479 | /* remove this watcher, if others are watching it, they will rearm */ |
|
|
2480 | inotify_rm_watch (fs_fd, wd); |
|
|
2481 | } |
|
|
2482 | |
|
|
2483 | static void noinline |
|
|
2484 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
|
|
2485 | { |
|
|
2486 | if (slot < 0) |
|
|
2487 | /* overflow, need to check for all hahs slots */ |
|
|
2488 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2489 | infy_wd (EV_A_ slot, wd, ev); |
|
|
2490 | else |
|
|
2491 | { |
|
|
2492 | WL w_; |
|
|
2493 | |
|
|
2494 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
|
|
2495 | { |
|
|
2496 | ev_stat *w = (ev_stat *)w_; |
|
|
2497 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
|
|
2498 | |
|
|
2499 | if (w->wd == wd || wd == -1) |
|
|
2500 | { |
|
|
2501 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
|
|
2502 | { |
|
|
2503 | w->wd = -1; |
|
|
2504 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2505 | } |
|
|
2506 | |
|
|
2507 | stat_timer_cb (EV_A_ &w->timer, 0); |
|
|
2508 | } |
|
|
2509 | } |
|
|
2510 | } |
|
|
2511 | } |
|
|
2512 | |
|
|
2513 | static void |
|
|
2514 | infy_cb (EV_P_ ev_io *w, int revents) |
|
|
2515 | { |
|
|
2516 | char buf [EV_INOTIFY_BUFSIZE]; |
|
|
2517 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2518 | int ofs; |
|
|
2519 | int len = read (fs_fd, buf, sizeof (buf)); |
|
|
2520 | |
|
|
2521 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
|
|
2522 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
2523 | } |
|
|
2524 | |
|
|
2525 | void inline_size |
|
|
2526 | infy_init (EV_P) |
|
|
2527 | { |
|
|
2528 | if (fs_fd != -2) |
|
|
2529 | return; |
|
|
2530 | |
|
|
2531 | fs_fd = inotify_init (); |
|
|
2532 | |
|
|
2533 | if (fs_fd >= 0) |
|
|
2534 | { |
|
|
2535 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
|
|
2536 | ev_set_priority (&fs_w, EV_MAXPRI); |
|
|
2537 | ev_io_start (EV_A_ &fs_w); |
|
|
2538 | } |
|
|
2539 | } |
|
|
2540 | |
|
|
2541 | void inline_size |
|
|
2542 | infy_fork (EV_P) |
|
|
2543 | { |
|
|
2544 | int slot; |
|
|
2545 | |
|
|
2546 | if (fs_fd < 0) |
|
|
2547 | return; |
|
|
2548 | |
|
|
2549 | close (fs_fd); |
|
|
2550 | fs_fd = inotify_init (); |
|
|
2551 | |
|
|
2552 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2553 | { |
|
|
2554 | WL w_ = fs_hash [slot].head; |
|
|
2555 | fs_hash [slot].head = 0; |
|
|
2556 | |
|
|
2557 | while (w_) |
|
|
2558 | { |
|
|
2559 | ev_stat *w = (ev_stat *)w_; |
|
|
2560 | w_ = w_->next; /* lets us add this watcher */ |
|
|
2561 | |
|
|
2562 | w->wd = -1; |
|
|
2563 | |
|
|
2564 | if (fs_fd >= 0) |
|
|
2565 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2566 | else |
|
|
2567 | ev_timer_start (EV_A_ &w->timer); |
|
|
2568 | } |
|
|
2569 | |
|
|
2570 | } |
|
|
2571 | } |
|
|
2572 | |
|
|
2573 | #endif |
|
|
2574 | |
|
|
2575 | #ifdef _WIN32 |
|
|
2576 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
2577 | #else |
|
|
2578 | # define EV_LSTAT(p,b) lstat (p, b) |
|
|
2579 | #endif |
|
|
2580 | |
|
|
2581 | void |
|
|
2582 | ev_stat_stat (EV_P_ ev_stat *w) |
|
|
2583 | { |
|
|
2584 | if (lstat (w->path, &w->attr) < 0) |
|
|
2585 | w->attr.st_nlink = 0; |
|
|
2586 | else if (!w->attr.st_nlink) |
|
|
2587 | w->attr.st_nlink = 1; |
|
|
2588 | } |
|
|
2589 | |
|
|
2590 | static void noinline |
|
|
2591 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
2592 | { |
|
|
2593 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
2594 | |
|
|
2595 | /* we copy this here each the time so that */ |
|
|
2596 | /* prev has the old value when the callback gets invoked */ |
|
|
2597 | w->prev = w->attr; |
|
|
2598 | ev_stat_stat (EV_A_ w); |
|
|
2599 | |
|
|
2600 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
|
|
2601 | if ( |
|
|
2602 | w->prev.st_dev != w->attr.st_dev |
|
|
2603 | || w->prev.st_ino != w->attr.st_ino |
|
|
2604 | || w->prev.st_mode != w->attr.st_mode |
|
|
2605 | || w->prev.st_nlink != w->attr.st_nlink |
|
|
2606 | || w->prev.st_uid != w->attr.st_uid |
|
|
2607 | || w->prev.st_gid != w->attr.st_gid |
|
|
2608 | || w->prev.st_rdev != w->attr.st_rdev |
|
|
2609 | || w->prev.st_size != w->attr.st_size |
|
|
2610 | || w->prev.st_atime != w->attr.st_atime |
|
|
2611 | || w->prev.st_mtime != w->attr.st_mtime |
|
|
2612 | || w->prev.st_ctime != w->attr.st_ctime |
|
|
2613 | ) { |
|
|
2614 | #if EV_USE_INOTIFY |
|
|
2615 | infy_del (EV_A_ w); |
|
|
2616 | infy_add (EV_A_ w); |
|
|
2617 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2618 | #endif |
|
|
2619 | |
|
|
2620 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
2621 | } |
|
|
2622 | } |
|
|
2623 | |
|
|
2624 | void |
|
|
2625 | ev_stat_start (EV_P_ ev_stat *w) |
|
|
2626 | { |
|
|
2627 | if (expect_false (ev_is_active (w))) |
|
|
2628 | return; |
|
|
2629 | |
|
|
2630 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2631 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2632 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2633 | |
|
|
2634 | ev_stat_stat (EV_A_ w); |
|
|
2635 | |
|
|
2636 | if (w->interval < MIN_STAT_INTERVAL) |
|
|
2637 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2638 | |
|
|
2639 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
|
|
2640 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
2641 | |
|
|
2642 | #if EV_USE_INOTIFY |
|
|
2643 | infy_init (EV_A); |
|
|
2644 | |
|
|
2645 | if (fs_fd >= 0) |
|
|
2646 | infy_add (EV_A_ w); |
|
|
2647 | else |
|
|
2648 | #endif |
|
|
2649 | ev_timer_start (EV_A_ &w->timer); |
|
|
2650 | |
|
|
2651 | ev_start (EV_A_ (W)w, 1); |
|
|
2652 | |
|
|
2653 | EV_FREQUENT_CHECK; |
|
|
2654 | } |
|
|
2655 | |
|
|
2656 | void |
|
|
2657 | ev_stat_stop (EV_P_ ev_stat *w) |
|
|
2658 | { |
|
|
2659 | clear_pending (EV_A_ (W)w); |
|
|
2660 | if (expect_false (!ev_is_active (w))) |
|
|
2661 | return; |
|
|
2662 | |
|
|
2663 | EV_FREQUENT_CHECK; |
|
|
2664 | |
|
|
2665 | #if EV_USE_INOTIFY |
|
|
2666 | infy_del (EV_A_ w); |
|
|
2667 | #endif |
|
|
2668 | ev_timer_stop (EV_A_ &w->timer); |
|
|
2669 | |
|
|
2670 | ev_stop (EV_A_ (W)w); |
|
|
2671 | |
|
|
2672 | EV_FREQUENT_CHECK; |
|
|
2673 | } |
|
|
2674 | #endif |
|
|
2675 | |
|
|
2676 | #if EV_IDLE_ENABLE |
|
|
2677 | void |
|
|
2678 | ev_idle_start (EV_P_ ev_idle *w) |
|
|
2679 | { |
|
|
2680 | if (expect_false (ev_is_active (w))) |
|
|
2681 | return; |
|
|
2682 | |
|
|
2683 | pri_adjust (EV_A_ (W)w); |
|
|
2684 | |
|
|
2685 | EV_FREQUENT_CHECK; |
|
|
2686 | |
|
|
2687 | { |
|
|
2688 | int active = ++idlecnt [ABSPRI (w)]; |
|
|
2689 | |
|
|
2690 | ++idleall; |
|
|
2691 | ev_start (EV_A_ (W)w, active); |
|
|
2692 | |
|
|
2693 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
|
|
2694 | idles [ABSPRI (w)][active - 1] = w; |
|
|
2695 | } |
|
|
2696 | |
|
|
2697 | EV_FREQUENT_CHECK; |
|
|
2698 | } |
|
|
2699 | |
|
|
2700 | void |
|
|
2701 | ev_idle_stop (EV_P_ ev_idle *w) |
|
|
2702 | { |
|
|
2703 | clear_pending (EV_A_ (W)w); |
|
|
2704 | if (expect_false (!ev_is_active (w))) |
|
|
2705 | return; |
|
|
2706 | |
|
|
2707 | EV_FREQUENT_CHECK; |
|
|
2708 | |
|
|
2709 | { |
|
|
2710 | int active = ev_active (w); |
|
|
2711 | |
|
|
2712 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
|
|
2713 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
|
|
2714 | |
|
|
2715 | ev_stop (EV_A_ (W)w); |
|
|
2716 | --idleall; |
|
|
2717 | } |
|
|
2718 | |
|
|
2719 | EV_FREQUENT_CHECK; |
|
|
2720 | } |
|
|
2721 | #endif |
|
|
2722 | |
|
|
2723 | void |
|
|
2724 | ev_prepare_start (EV_P_ ev_prepare *w) |
|
|
2725 | { |
|
|
2726 | if (expect_false (ev_is_active (w))) |
|
|
2727 | return; |
|
|
2728 | |
|
|
2729 | EV_FREQUENT_CHECK; |
|
|
2730 | |
|
|
2731 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
2732 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
|
|
2733 | prepares [preparecnt - 1] = w; |
|
|
2734 | |
|
|
2735 | EV_FREQUENT_CHECK; |
|
|
2736 | } |
|
|
2737 | |
|
|
2738 | void |
|
|
2739 | ev_prepare_stop (EV_P_ ev_prepare *w) |
|
|
2740 | { |
|
|
2741 | clear_pending (EV_A_ (W)w); |
|
|
2742 | if (expect_false (!ev_is_active (w))) |
|
|
2743 | return; |
|
|
2744 | |
|
|
2745 | EV_FREQUENT_CHECK; |
|
|
2746 | |
|
|
2747 | { |
|
|
2748 | int active = ev_active (w); |
|
|
2749 | |
|
|
2750 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
2751 | ev_active (prepares [active - 1]) = active; |
|
|
2752 | } |
|
|
2753 | |
|
|
2754 | ev_stop (EV_A_ (W)w); |
|
|
2755 | |
|
|
2756 | EV_FREQUENT_CHECK; |
|
|
2757 | } |
|
|
2758 | |
|
|
2759 | void |
|
|
2760 | ev_check_start (EV_P_ ev_check *w) |
|
|
2761 | { |
|
|
2762 | if (expect_false (ev_is_active (w))) |
|
|
2763 | return; |
|
|
2764 | |
|
|
2765 | EV_FREQUENT_CHECK; |
|
|
2766 | |
|
|
2767 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
2768 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
|
|
2769 | checks [checkcnt - 1] = w; |
|
|
2770 | |
|
|
2771 | EV_FREQUENT_CHECK; |
|
|
2772 | } |
|
|
2773 | |
|
|
2774 | void |
|
|
2775 | ev_check_stop (EV_P_ ev_check *w) |
|
|
2776 | { |
|
|
2777 | clear_pending (EV_A_ (W)w); |
|
|
2778 | if (expect_false (!ev_is_active (w))) |
|
|
2779 | return; |
|
|
2780 | |
|
|
2781 | EV_FREQUENT_CHECK; |
|
|
2782 | |
|
|
2783 | { |
|
|
2784 | int active = ev_active (w); |
|
|
2785 | |
|
|
2786 | checks [active - 1] = checks [--checkcnt]; |
|
|
2787 | ev_active (checks [active - 1]) = active; |
|
|
2788 | } |
|
|
2789 | |
|
|
2790 | ev_stop (EV_A_ (W)w); |
|
|
2791 | |
|
|
2792 | EV_FREQUENT_CHECK; |
|
|
2793 | } |
|
|
2794 | |
|
|
2795 | #if EV_EMBED_ENABLE |
|
|
2796 | void noinline |
|
|
2797 | ev_embed_sweep (EV_P_ ev_embed *w) |
|
|
2798 | { |
|
|
2799 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2800 | } |
|
|
2801 | |
|
|
2802 | static void |
|
|
2803 | embed_io_cb (EV_P_ ev_io *io, int revents) |
|
|
2804 | { |
|
|
2805 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
|
|
2806 | |
|
|
2807 | if (ev_cb (w)) |
|
|
2808 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
|
|
2809 | else |
|
|
2810 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2811 | } |
|
|
2812 | |
|
|
2813 | static void |
|
|
2814 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
2815 | { |
|
|
2816 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
2817 | |
|
|
2818 | { |
|
|
2819 | struct ev_loop *loop = w->other; |
|
|
2820 | |
|
|
2821 | while (fdchangecnt) |
|
|
2822 | { |
|
|
2823 | fd_reify (EV_A); |
|
|
2824 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2825 | } |
|
|
2826 | } |
|
|
2827 | } |
|
|
2828 | |
|
|
2829 | #if 0 |
|
|
2830 | static void |
|
|
2831 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
2832 | { |
|
|
2833 | ev_idle_stop (EV_A_ idle); |
|
|
2834 | } |
|
|
2835 | #endif |
|
|
2836 | |
|
|
2837 | void |
|
|
2838 | ev_embed_start (EV_P_ ev_embed *w) |
|
|
2839 | { |
|
|
2840 | if (expect_false (ev_is_active (w))) |
|
|
2841 | return; |
|
|
2842 | |
|
|
2843 | { |
|
|
2844 | struct ev_loop *loop = w->other; |
|
|
2845 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
|
|
2846 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
|
|
2847 | } |
|
|
2848 | |
|
|
2849 | EV_FREQUENT_CHECK; |
|
|
2850 | |
|
|
2851 | ev_set_priority (&w->io, ev_priority (w)); |
|
|
2852 | ev_io_start (EV_A_ &w->io); |
|
|
2853 | |
|
|
2854 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
2855 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
2856 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
2857 | |
|
|
2858 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
2859 | |
|
|
2860 | ev_start (EV_A_ (W)w, 1); |
|
|
2861 | |
|
|
2862 | EV_FREQUENT_CHECK; |
|
|
2863 | } |
|
|
2864 | |
|
|
2865 | void |
|
|
2866 | ev_embed_stop (EV_P_ ev_embed *w) |
|
|
2867 | { |
|
|
2868 | clear_pending (EV_A_ (W)w); |
|
|
2869 | if (expect_false (!ev_is_active (w))) |
|
|
2870 | return; |
|
|
2871 | |
|
|
2872 | EV_FREQUENT_CHECK; |
|
|
2873 | |
|
|
2874 | ev_io_stop (EV_A_ &w->io); |
|
|
2875 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
2876 | |
|
|
2877 | ev_stop (EV_A_ (W)w); |
|
|
2878 | |
|
|
2879 | EV_FREQUENT_CHECK; |
|
|
2880 | } |
|
|
2881 | #endif |
|
|
2882 | |
|
|
2883 | #if EV_FORK_ENABLE |
|
|
2884 | void |
|
|
2885 | ev_fork_start (EV_P_ ev_fork *w) |
|
|
2886 | { |
|
|
2887 | if (expect_false (ev_is_active (w))) |
|
|
2888 | return; |
|
|
2889 | |
|
|
2890 | EV_FREQUENT_CHECK; |
|
|
2891 | |
|
|
2892 | ev_start (EV_A_ (W)w, ++forkcnt); |
|
|
2893 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
|
|
2894 | forks [forkcnt - 1] = w; |
|
|
2895 | |
|
|
2896 | EV_FREQUENT_CHECK; |
|
|
2897 | } |
|
|
2898 | |
|
|
2899 | void |
|
|
2900 | ev_fork_stop (EV_P_ ev_fork *w) |
|
|
2901 | { |
|
|
2902 | clear_pending (EV_A_ (W)w); |
|
|
2903 | if (expect_false (!ev_is_active (w))) |
|
|
2904 | return; |
|
|
2905 | |
|
|
2906 | EV_FREQUENT_CHECK; |
|
|
2907 | |
|
|
2908 | { |
|
|
2909 | int active = ev_active (w); |
|
|
2910 | |
|
|
2911 | forks [active - 1] = forks [--forkcnt]; |
|
|
2912 | ev_active (forks [active - 1]) = active; |
|
|
2913 | } |
|
|
2914 | |
|
|
2915 | ev_stop (EV_A_ (W)w); |
|
|
2916 | |
|
|
2917 | EV_FREQUENT_CHECK; |
|
|
2918 | } |
|
|
2919 | #endif |
|
|
2920 | |
|
|
2921 | #if EV_ASYNC_ENABLE |
|
|
2922 | void |
|
|
2923 | ev_async_start (EV_P_ ev_async *w) |
|
|
2924 | { |
|
|
2925 | if (expect_false (ev_is_active (w))) |
|
|
2926 | return; |
|
|
2927 | |
|
|
2928 | evpipe_init (EV_A); |
|
|
2929 | |
|
|
2930 | EV_FREQUENT_CHECK; |
|
|
2931 | |
|
|
2932 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
2933 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
2934 | asyncs [asynccnt - 1] = w; |
|
|
2935 | |
|
|
2936 | EV_FREQUENT_CHECK; |
|
|
2937 | } |
|
|
2938 | |
|
|
2939 | void |
|
|
2940 | ev_async_stop (EV_P_ ev_async *w) |
|
|
2941 | { |
|
|
2942 | clear_pending (EV_A_ (W)w); |
|
|
2943 | if (expect_false (!ev_is_active (w))) |
|
|
2944 | return; |
|
|
2945 | |
|
|
2946 | EV_FREQUENT_CHECK; |
|
|
2947 | |
|
|
2948 | { |
|
|
2949 | int active = ev_active (w); |
|
|
2950 | |
|
|
2951 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
2952 | ev_active (asyncs [active - 1]) = active; |
|
|
2953 | } |
|
|
2954 | |
|
|
2955 | ev_stop (EV_A_ (W)w); |
|
|
2956 | |
|
|
2957 | EV_FREQUENT_CHECK; |
|
|
2958 | } |
|
|
2959 | |
|
|
2960 | void |
|
|
2961 | ev_async_send (EV_P_ ev_async *w) |
|
|
2962 | { |
|
|
2963 | w->sent = 1; |
|
|
2964 | evpipe_write (EV_A_ &gotasync); |
|
|
2965 | } |
|
|
2966 | #endif |
1620 | |
2967 | |
1621 | /*****************************************************************************/ |
2968 | /*****************************************************************************/ |
1622 | |
2969 | |
1623 | struct ev_once |
2970 | struct ev_once |
1624 | { |
2971 | { |
1625 | struct ev_io io; |
2972 | ev_io io; |
1626 | struct ev_timer to; |
2973 | ev_timer to; |
1627 | void (*cb)(int revents, void *arg); |
2974 | void (*cb)(int revents, void *arg); |
1628 | void *arg; |
2975 | void *arg; |
1629 | }; |
2976 | }; |
1630 | |
2977 | |
1631 | static void |
2978 | static void |
… | |
… | |
1640 | |
2987 | |
1641 | cb (revents, arg); |
2988 | cb (revents, arg); |
1642 | } |
2989 | } |
1643 | |
2990 | |
1644 | static void |
2991 | static void |
1645 | once_cb_io (EV_P_ struct ev_io *w, int revents) |
2992 | once_cb_io (EV_P_ ev_io *w, int revents) |
1646 | { |
2993 | { |
1647 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
2994 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1648 | } |
2995 | } |
1649 | |
2996 | |
1650 | static void |
2997 | static void |
1651 | once_cb_to (EV_P_ struct ev_timer *w, int revents) |
2998 | once_cb_to (EV_P_ ev_timer *w, int revents) |
1652 | { |
2999 | { |
1653 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3000 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1654 | } |
3001 | } |
1655 | |
3002 | |
1656 | void |
3003 | void |
… | |
… | |
1680 | ev_timer_set (&once->to, timeout, 0.); |
3027 | ev_timer_set (&once->to, timeout, 0.); |
1681 | ev_timer_start (EV_A_ &once->to); |
3028 | ev_timer_start (EV_A_ &once->to); |
1682 | } |
3029 | } |
1683 | } |
3030 | } |
1684 | |
3031 | |
|
|
3032 | #if EV_MULTIPLICITY |
|
|
3033 | #include "ev_wrap.h" |
|
|
3034 | #endif |
|
|
3035 | |
1685 | #ifdef __cplusplus |
3036 | #ifdef __cplusplus |
1686 | } |
3037 | } |
1687 | #endif |
3038 | #endif |
1688 | |
3039 | |