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) 2007,2008,2009,2010 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 |
37 | # ifdef EV_CONFIG_H |
46 | # ifdef EV_CONFIG_H |
38 | # include EV_CONFIG_H |
47 | # include EV_CONFIG_H |
39 | # else |
48 | # else |
40 | # include "config.h" |
49 | # include "config.h" |
41 | # endif |
50 | # endif |
42 | |
51 | |
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52 | # if HAVE_CLOCK_SYSCALL |
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53 | # ifndef EV_USE_CLOCK_SYSCALL |
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54 | # define EV_USE_CLOCK_SYSCALL 1 |
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55 | # ifndef EV_USE_REALTIME |
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56 | # define EV_USE_REALTIME 0 |
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57 | # endif |
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58 | # ifndef EV_USE_MONOTONIC |
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59 | # define EV_USE_MONOTONIC 1 |
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60 | # endif |
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61 | # endif |
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62 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
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63 | # define EV_USE_CLOCK_SYSCALL 0 |
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64 | # endif |
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65 | |
43 | # if HAVE_CLOCK_GETTIME |
66 | # if HAVE_CLOCK_GETTIME |
44 | # ifndef EV_USE_MONOTONIC |
67 | # ifndef EV_USE_MONOTONIC |
45 | # define EV_USE_MONOTONIC 1 |
68 | # define EV_USE_MONOTONIC 1 |
46 | # endif |
69 | # endif |
47 | # ifndef EV_USE_REALTIME |
70 | # ifndef EV_USE_REALTIME |
48 | # define EV_USE_REALTIME 1 |
71 | # define EV_USE_REALTIME 0 |
49 | # endif |
72 | # endif |
50 | # else |
73 | # else |
51 | # ifndef EV_USE_MONOTONIC |
74 | # ifndef EV_USE_MONOTONIC |
52 | # define EV_USE_MONOTONIC 0 |
75 | # define EV_USE_MONOTONIC 0 |
53 | # endif |
76 | # endif |
54 | # ifndef EV_USE_REALTIME |
77 | # ifndef EV_USE_REALTIME |
55 | # define EV_USE_REALTIME 0 |
78 | # define EV_USE_REALTIME 0 |
56 | # endif |
79 | # endif |
57 | # endif |
80 | # endif |
58 | |
81 | |
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82 | # ifndef EV_USE_NANOSLEEP |
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83 | # if HAVE_NANOSLEEP |
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84 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
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85 | # else |
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86 | # define EV_USE_NANOSLEEP 0 |
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87 | # endif |
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88 | # endif |
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89 | |
59 | # ifndef EV_USE_SELECT |
90 | # ifndef EV_USE_SELECT |
60 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
91 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
61 | # define EV_USE_SELECT 1 |
92 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
62 | # else |
93 | # else |
63 | # define EV_USE_SELECT 0 |
94 | # define EV_USE_SELECT 0 |
64 | # endif |
95 | # endif |
65 | # endif |
96 | # endif |
66 | |
97 | |
67 | # ifndef EV_USE_POLL |
98 | # ifndef EV_USE_POLL |
68 | # if HAVE_POLL && HAVE_POLL_H |
99 | # if HAVE_POLL && HAVE_POLL_H |
69 | # define EV_USE_POLL 1 |
100 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
70 | # else |
101 | # else |
71 | # define EV_USE_POLL 0 |
102 | # define EV_USE_POLL 0 |
72 | # endif |
103 | # endif |
73 | # endif |
104 | # endif |
74 | |
105 | |
75 | # ifndef EV_USE_EPOLL |
106 | # ifndef EV_USE_EPOLL |
76 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
107 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
77 | # define EV_USE_EPOLL 1 |
108 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
78 | # else |
109 | # else |
79 | # define EV_USE_EPOLL 0 |
110 | # define EV_USE_EPOLL 0 |
80 | # endif |
111 | # endif |
81 | # endif |
112 | # endif |
82 | |
113 | |
83 | # ifndef EV_USE_KQUEUE |
114 | # ifndef EV_USE_KQUEUE |
84 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
115 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
85 | # define EV_USE_KQUEUE 1 |
116 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
86 | # else |
117 | # else |
87 | # define EV_USE_KQUEUE 0 |
118 | # define EV_USE_KQUEUE 0 |
88 | # endif |
119 | # endif |
89 | # endif |
120 | # endif |
90 | |
121 | |
91 | # ifndef EV_USE_PORT |
122 | # ifndef EV_USE_PORT |
92 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
123 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
93 | # define EV_USE_PORT 1 |
124 | # define EV_USE_PORT EV_FEATURE_BACKENDS |
94 | # else |
125 | # else |
95 | # define EV_USE_PORT 0 |
126 | # define EV_USE_PORT 0 |
96 | # endif |
127 | # endif |
97 | # endif |
128 | # endif |
98 | |
129 | |
99 | # ifndef EV_USE_INOTIFY |
130 | # ifndef EV_USE_INOTIFY |
100 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
131 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
101 | # define EV_USE_INOTIFY 1 |
132 | # define EV_USE_INOTIFY EV_FEATURE_OS |
102 | # else |
133 | # else |
103 | # define EV_USE_INOTIFY 0 |
134 | # define EV_USE_INOTIFY 0 |
104 | # endif |
135 | # endif |
105 | # endif |
136 | # endif |
106 | |
137 | |
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138 | # ifndef EV_USE_SIGNALFD |
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139 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
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140 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
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141 | # else |
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142 | # define EV_USE_SIGNALFD 0 |
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143 | # endif |
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144 | # endif |
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145 | |
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146 | # ifndef EV_USE_EVENTFD |
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147 | # if HAVE_EVENTFD |
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148 | # define EV_USE_EVENTFD EV_FEATURE_OS |
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149 | # else |
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150 | # define EV_USE_EVENTFD 0 |
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151 | # endif |
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152 | # endif |
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153 | |
107 | #endif |
154 | #endif |
108 | |
155 | |
109 | #include <math.h> |
156 | #include <math.h> |
110 | #include <stdlib.h> |
157 | #include <stdlib.h> |
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158 | #include <string.h> |
111 | #include <fcntl.h> |
159 | #include <fcntl.h> |
112 | #include <stddef.h> |
160 | #include <stddef.h> |
113 | |
161 | |
114 | #include <stdio.h> |
162 | #include <stdio.h> |
115 | |
163 | |
116 | #include <assert.h> |
164 | #include <assert.h> |
117 | #include <errno.h> |
165 | #include <errno.h> |
118 | #include <sys/types.h> |
166 | #include <sys/types.h> |
119 | #include <time.h> |
167 | #include <time.h> |
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168 | #include <limits.h> |
120 | |
169 | |
121 | #include <signal.h> |
170 | #include <signal.h> |
122 | |
171 | |
123 | #ifdef EV_H |
172 | #ifdef EV_H |
124 | # include EV_H |
173 | # include EV_H |
… | |
… | |
129 | #ifndef _WIN32 |
178 | #ifndef _WIN32 |
130 | # include <sys/time.h> |
179 | # include <sys/time.h> |
131 | # include <sys/wait.h> |
180 | # include <sys/wait.h> |
132 | # include <unistd.h> |
181 | # include <unistd.h> |
133 | #else |
182 | #else |
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183 | # include <io.h> |
134 | # define WIN32_LEAN_AND_MEAN |
184 | # define WIN32_LEAN_AND_MEAN |
135 | # include <windows.h> |
185 | # include <windows.h> |
136 | # ifndef EV_SELECT_IS_WINSOCKET |
186 | # ifndef EV_SELECT_IS_WINSOCKET |
137 | # define EV_SELECT_IS_WINSOCKET 1 |
187 | # define EV_SELECT_IS_WINSOCKET 1 |
138 | # endif |
188 | # endif |
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189 | # undef EV_AVOID_STDIO |
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190 | #endif |
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191 | |
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192 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
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193 | |
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194 | /* try to deduce the maximum number of signals on this platform */ |
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195 | #if defined (EV_NSIG) |
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196 | /* use what's provided */ |
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197 | #elif defined (NSIG) |
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198 | # define EV_NSIG (NSIG) |
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199 | #elif defined(_NSIG) |
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200 | # define EV_NSIG (_NSIG) |
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201 | #elif defined (SIGMAX) |
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202 | # define EV_NSIG (SIGMAX+1) |
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203 | #elif defined (SIG_MAX) |
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204 | # define EV_NSIG (SIG_MAX+1) |
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205 | #elif defined (_SIG_MAX) |
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206 | # define EV_NSIG (_SIG_MAX+1) |
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207 | #elif defined (MAXSIG) |
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208 | # define EV_NSIG (MAXSIG+1) |
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209 | #elif defined (MAX_SIG) |
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210 | # define EV_NSIG (MAX_SIG+1) |
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211 | #elif defined (SIGARRAYSIZE) |
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212 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
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213 | #elif defined (_sys_nsig) |
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214 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
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215 | #else |
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216 | # error "unable to find value for NSIG, please report" |
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217 | /* to make it compile regardless, just remove the above line, */ |
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218 | /* but consider reporting it, too! :) */ |
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219 | # define EV_NSIG 65 |
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220 | #endif |
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221 | |
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222 | #ifndef EV_USE_CLOCK_SYSCALL |
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223 | # if __linux && __GLIBC__ >= 2 |
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224 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
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225 | # else |
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226 | # define EV_USE_CLOCK_SYSCALL 0 |
139 | #endif |
227 | # endif |
140 | |
228 | #endif |
141 | /**/ |
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142 | |
229 | |
143 | #ifndef EV_USE_MONOTONIC |
230 | #ifndef EV_USE_MONOTONIC |
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231 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
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232 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
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233 | # else |
144 | # define EV_USE_MONOTONIC 0 |
234 | # define EV_USE_MONOTONIC 0 |
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235 | # endif |
145 | #endif |
236 | #endif |
146 | |
237 | |
147 | #ifndef EV_USE_REALTIME |
238 | #ifndef EV_USE_REALTIME |
148 | # define EV_USE_REALTIME 0 |
239 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
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240 | #endif |
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241 | |
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242 | #ifndef EV_USE_NANOSLEEP |
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243 | # if _POSIX_C_SOURCE >= 199309L |
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244 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
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245 | # else |
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246 | # define EV_USE_NANOSLEEP 0 |
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247 | # endif |
149 | #endif |
248 | #endif |
150 | |
249 | |
151 | #ifndef EV_USE_SELECT |
250 | #ifndef EV_USE_SELECT |
152 | # define EV_USE_SELECT 1 |
251 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
153 | #endif |
252 | #endif |
154 | |
253 | |
155 | #ifndef EV_USE_POLL |
254 | #ifndef EV_USE_POLL |
156 | # ifdef _WIN32 |
255 | # ifdef _WIN32 |
157 | # define EV_USE_POLL 0 |
256 | # define EV_USE_POLL 0 |
158 | # else |
257 | # else |
159 | # define EV_USE_POLL 1 |
258 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
160 | # endif |
259 | # endif |
161 | #endif |
260 | #endif |
162 | |
261 | |
163 | #ifndef EV_USE_EPOLL |
262 | #ifndef EV_USE_EPOLL |
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263 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
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264 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
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265 | # else |
164 | # define EV_USE_EPOLL 0 |
266 | # define EV_USE_EPOLL 0 |
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267 | # endif |
165 | #endif |
268 | #endif |
166 | |
269 | |
167 | #ifndef EV_USE_KQUEUE |
270 | #ifndef EV_USE_KQUEUE |
168 | # define EV_USE_KQUEUE 0 |
271 | # define EV_USE_KQUEUE 0 |
169 | #endif |
272 | #endif |
… | |
… | |
171 | #ifndef EV_USE_PORT |
274 | #ifndef EV_USE_PORT |
172 | # define EV_USE_PORT 0 |
275 | # define EV_USE_PORT 0 |
173 | #endif |
276 | #endif |
174 | |
277 | |
175 | #ifndef EV_USE_INOTIFY |
278 | #ifndef EV_USE_INOTIFY |
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279 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
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280 | # define EV_USE_INOTIFY EV_FEATURE_OS |
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281 | # else |
176 | # define EV_USE_INOTIFY 0 |
282 | # define EV_USE_INOTIFY 0 |
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283 | # endif |
177 | #endif |
284 | #endif |
178 | |
285 | |
179 | #ifndef EV_PID_HASHSIZE |
286 | #ifndef EV_PID_HASHSIZE |
180 | # if EV_MINIMAL |
287 | # define EV_PID_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
181 | # define EV_PID_HASHSIZE 1 |
288 | #endif |
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289 | |
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290 | #ifndef EV_INOTIFY_HASHSIZE |
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291 | # define EV_INOTIFY_HASHSIZE EV_FEATURE_DATA ? 16 : 1 |
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292 | #endif |
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293 | |
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294 | #ifndef EV_USE_EVENTFD |
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295 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
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296 | # define EV_USE_EVENTFD EV_FEATURE_OS |
182 | # else |
297 | # else |
183 | # define EV_PID_HASHSIZE 16 |
298 | # define EV_USE_EVENTFD 0 |
184 | # endif |
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185 | #endif |
299 | # endif |
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300 | #endif |
186 | |
301 | |
187 | #ifndef EV_INOTIFY_HASHSIZE |
302 | #ifndef EV_USE_SIGNALFD |
188 | # if EV_MINIMAL |
303 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
189 | # define EV_INOTIFY_HASHSIZE 1 |
304 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
190 | # else |
305 | # else |
191 | # define EV_INOTIFY_HASHSIZE 16 |
306 | # define EV_USE_SIGNALFD 0 |
192 | # endif |
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193 | #endif |
307 | # endif |
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308 | #endif |
194 | |
309 | |
195 | /**/ |
310 | #if 0 /* debugging */ |
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311 | # define EV_VERIFY 3 |
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312 | # define EV_USE_4HEAP 1 |
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313 | # define EV_HEAP_CACHE_AT 1 |
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314 | #endif |
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315 | |
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316 | #ifndef EV_VERIFY |
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317 | # define EV_VERIFY (EV_FEATURE_API ? 1 : 0) |
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318 | #endif |
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319 | |
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320 | #ifndef EV_USE_4HEAP |
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321 | # define EV_USE_4HEAP EV_FEATURE_DATA |
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322 | #endif |
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323 | |
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324 | #ifndef EV_HEAP_CACHE_AT |
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325 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
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326 | #endif |
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327 | |
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328 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
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329 | /* which makes programs even slower. might work on other unices, too. */ |
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330 | #if EV_USE_CLOCK_SYSCALL |
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331 | # include <syscall.h> |
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332 | # ifdef SYS_clock_gettime |
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333 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
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334 | # undef EV_USE_MONOTONIC |
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335 | # define EV_USE_MONOTONIC 1 |
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336 | # else |
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337 | # undef EV_USE_CLOCK_SYSCALL |
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338 | # define EV_USE_CLOCK_SYSCALL 0 |
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339 | # endif |
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340 | #endif |
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341 | |
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342 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
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343 | |
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344 | #ifdef _AIX |
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345 | /* AIX has a completely broken poll.h header */ |
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346 | # undef EV_USE_POLL |
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347 | # define EV_USE_POLL 0 |
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348 | #endif |
196 | |
349 | |
197 | #ifndef CLOCK_MONOTONIC |
350 | #ifndef CLOCK_MONOTONIC |
198 | # undef EV_USE_MONOTONIC |
351 | # undef EV_USE_MONOTONIC |
199 | # define EV_USE_MONOTONIC 0 |
352 | # define EV_USE_MONOTONIC 0 |
200 | #endif |
353 | #endif |
… | |
… | |
207 | #if !EV_STAT_ENABLE |
360 | #if !EV_STAT_ENABLE |
208 | # undef EV_USE_INOTIFY |
361 | # undef EV_USE_INOTIFY |
209 | # define EV_USE_INOTIFY 0 |
362 | # define EV_USE_INOTIFY 0 |
210 | #endif |
363 | #endif |
211 | |
364 | |
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365 | #if !EV_USE_NANOSLEEP |
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366 | # ifndef _WIN32 |
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367 | # include <sys/select.h> |
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368 | # endif |
|
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369 | #endif |
|
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370 | |
212 | #if EV_USE_INOTIFY |
371 | #if EV_USE_INOTIFY |
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372 | # include <sys/utsname.h> |
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373 | # include <sys/statfs.h> |
213 | # include <sys/inotify.h> |
374 | # include <sys/inotify.h> |
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375 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
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376 | # ifndef IN_DONT_FOLLOW |
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377 | # undef EV_USE_INOTIFY |
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378 | # define EV_USE_INOTIFY 0 |
|
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379 | # endif |
214 | #endif |
380 | #endif |
215 | |
381 | |
216 | #if EV_SELECT_IS_WINSOCKET |
382 | #if EV_SELECT_IS_WINSOCKET |
217 | # include <winsock.h> |
383 | # include <winsock.h> |
218 | #endif |
384 | #endif |
219 | |
385 | |
|
|
386 | #if EV_USE_EVENTFD |
|
|
387 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
388 | # include <stdint.h> |
|
|
389 | # ifndef EFD_NONBLOCK |
|
|
390 | # define EFD_NONBLOCK O_NONBLOCK |
|
|
391 | # endif |
|
|
392 | # ifndef EFD_CLOEXEC |
|
|
393 | # ifdef O_CLOEXEC |
|
|
394 | # define EFD_CLOEXEC O_CLOEXEC |
|
|
395 | # else |
|
|
396 | # define EFD_CLOEXEC 02000000 |
|
|
397 | # endif |
|
|
398 | # endif |
|
|
399 | # ifdef __cplusplus |
|
|
400 | extern "C" { |
|
|
401 | # endif |
|
|
402 | int (eventfd) (unsigned int initval, int flags); |
|
|
403 | # ifdef __cplusplus |
|
|
404 | } |
|
|
405 | # endif |
|
|
406 | #endif |
|
|
407 | |
|
|
408 | #if EV_USE_SIGNALFD |
|
|
409 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
410 | # include <stdint.h> |
|
|
411 | # ifndef SFD_NONBLOCK |
|
|
412 | # define SFD_NONBLOCK O_NONBLOCK |
|
|
413 | # endif |
|
|
414 | # ifndef SFD_CLOEXEC |
|
|
415 | # ifdef O_CLOEXEC |
|
|
416 | # define SFD_CLOEXEC O_CLOEXEC |
|
|
417 | # else |
|
|
418 | # define SFD_CLOEXEC 02000000 |
|
|
419 | # endif |
|
|
420 | # endif |
|
|
421 | # ifdef __cplusplus |
|
|
422 | extern "C" { |
|
|
423 | # endif |
|
|
424 | int signalfd (int fd, const sigset_t *mask, int flags); |
|
|
425 | |
|
|
426 | struct signalfd_siginfo |
|
|
427 | { |
|
|
428 | uint32_t ssi_signo; |
|
|
429 | char pad[128 - sizeof (uint32_t)]; |
|
|
430 | }; |
|
|
431 | # ifdef __cplusplus |
|
|
432 | } |
|
|
433 | # endif |
|
|
434 | #endif |
|
|
435 | |
|
|
436 | |
220 | /**/ |
437 | /**/ |
|
|
438 | |
|
|
439 | #if EV_VERIFY >= 3 |
|
|
440 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
|
|
441 | #else |
|
|
442 | # define EV_FREQUENT_CHECK do { } while (0) |
|
|
443 | #endif |
221 | |
444 | |
222 | /* |
445 | /* |
223 | * This is used to avoid floating point rounding problems. |
446 | * This is used to avoid floating point rounding problems. |
224 | * It is added to ev_rt_now when scheduling periodics |
447 | * It is added to ev_rt_now when scheduling periodics |
225 | * to ensure progress, time-wise, even when rounding |
448 | * to ensure progress, time-wise, even when rounding |
… | |
… | |
229 | */ |
452 | */ |
230 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
453 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
231 | |
454 | |
232 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
455 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
233 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
456 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
234 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
|
|
235 | |
457 | |
236 | #if __GNUC__ >= 4 |
458 | #if __GNUC__ >= 4 |
237 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
459 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
238 | # define noinline __attribute__ ((noinline)) |
460 | # define noinline __attribute__ ((noinline)) |
239 | #else |
461 | #else |
240 | # define expect(expr,value) (expr) |
462 | # define expect(expr,value) (expr) |
241 | # define noinline |
463 | # define noinline |
242 | # if __STDC_VERSION__ < 199901L |
464 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
243 | # define inline |
465 | # define inline |
244 | # endif |
466 | # endif |
245 | #endif |
467 | #endif |
246 | |
468 | |
247 | #define expect_false(expr) expect ((expr) != 0, 0) |
469 | #define expect_false(expr) expect ((expr) != 0, 0) |
248 | #define expect_true(expr) expect ((expr) != 0, 1) |
470 | #define expect_true(expr) expect ((expr) != 0, 1) |
249 | #define inline_size static inline |
471 | #define inline_size static inline |
250 | |
472 | |
251 | #if EV_MINIMAL |
473 | #if EV_FEATURE_CODE |
|
|
474 | # define inline_speed static inline |
|
|
475 | #else |
252 | # define inline_speed static noinline |
476 | # define inline_speed static noinline |
|
|
477 | #endif |
|
|
478 | |
|
|
479 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
480 | |
|
|
481 | #if EV_MINPRI == EV_MAXPRI |
|
|
482 | # define ABSPRI(w) (((W)w), 0) |
253 | #else |
483 | #else |
254 | # define inline_speed static inline |
|
|
255 | #endif |
|
|
256 | |
|
|
257 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
258 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
484 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
485 | #endif |
259 | |
486 | |
260 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
487 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
261 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
488 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
262 | |
489 | |
263 | typedef ev_watcher *W; |
490 | typedef ev_watcher *W; |
264 | typedef ev_watcher_list *WL; |
491 | typedef ev_watcher_list *WL; |
265 | typedef ev_watcher_time *WT; |
492 | typedef ev_watcher_time *WT; |
266 | |
493 | |
|
|
494 | #define ev_active(w) ((W)(w))->active |
|
|
495 | #define ev_at(w) ((WT)(w))->at |
|
|
496 | |
|
|
497 | #if EV_USE_REALTIME |
|
|
498 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
499 | /* giving it a reasonably high chance of working on typical architetcures */ |
|
|
500 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
|
|
501 | #endif |
|
|
502 | |
|
|
503 | #if EV_USE_MONOTONIC |
267 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
504 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
505 | #endif |
|
|
506 | |
|
|
507 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
508 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
509 | #endif |
|
|
510 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
511 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
512 | #endif |
|
|
513 | #ifndef EV_WIN32_CLOSE_FD |
|
|
514 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
|
|
515 | #endif |
268 | |
516 | |
269 | #ifdef _WIN32 |
517 | #ifdef _WIN32 |
270 | # include "ev_win32.c" |
518 | # include "ev_win32.c" |
271 | #endif |
519 | #endif |
272 | |
520 | |
273 | /*****************************************************************************/ |
521 | /*****************************************************************************/ |
274 | |
522 | |
|
|
523 | #if EV_AVOID_STDIO |
|
|
524 | static void noinline |
|
|
525 | ev_printerr (const char *msg) |
|
|
526 | { |
|
|
527 | write (STDERR_FILENO, msg, strlen (msg)); |
|
|
528 | } |
|
|
529 | #endif |
|
|
530 | |
275 | static void (*syserr_cb)(const char *msg); |
531 | static void (*syserr_cb)(const char *msg); |
276 | |
532 | |
277 | void |
533 | void |
278 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
534 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
279 | { |
535 | { |
280 | syserr_cb = cb; |
536 | syserr_cb = cb; |
281 | } |
537 | } |
282 | |
538 | |
283 | static void noinline |
539 | static void noinline |
284 | syserr (const char *msg) |
540 | ev_syserr (const char *msg) |
285 | { |
541 | { |
286 | if (!msg) |
542 | if (!msg) |
287 | msg = "(libev) system error"; |
543 | msg = "(libev) system error"; |
288 | |
544 | |
289 | if (syserr_cb) |
545 | if (syserr_cb) |
290 | syserr_cb (msg); |
546 | syserr_cb (msg); |
291 | else |
547 | else |
292 | { |
548 | { |
|
|
549 | #if EV_AVOID_STDIO |
|
|
550 | const char *err = strerror (errno); |
|
|
551 | |
|
|
552 | ev_printerr (msg); |
|
|
553 | ev_printerr (": "); |
|
|
554 | ev_printerr (err); |
|
|
555 | ev_printerr ("\n"); |
|
|
556 | #else |
293 | perror (msg); |
557 | perror (msg); |
|
|
558 | #endif |
294 | abort (); |
559 | abort (); |
295 | } |
560 | } |
296 | } |
561 | } |
297 | |
562 | |
|
|
563 | static void * |
|
|
564 | ev_realloc_emul (void *ptr, long size) |
|
|
565 | { |
|
|
566 | #if __GLIBC__ |
|
|
567 | return realloc (ptr, size); |
|
|
568 | #else |
|
|
569 | /* some systems, notably openbsd and darwin, fail to properly |
|
|
570 | * implement realloc (x, 0) (as required by both ansi c-89 and |
|
|
571 | * the single unix specification, so work around them here. |
|
|
572 | */ |
|
|
573 | |
|
|
574 | if (size) |
|
|
575 | return realloc (ptr, size); |
|
|
576 | |
|
|
577 | free (ptr); |
|
|
578 | return 0; |
|
|
579 | #endif |
|
|
580 | } |
|
|
581 | |
298 | static void *(*alloc)(void *ptr, long size); |
582 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
299 | |
583 | |
300 | void |
584 | void |
301 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
585 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
302 | { |
586 | { |
303 | alloc = cb; |
587 | alloc = cb; |
304 | } |
588 | } |
305 | |
589 | |
306 | inline_speed void * |
590 | inline_speed void * |
307 | ev_realloc (void *ptr, long size) |
591 | ev_realloc (void *ptr, long size) |
308 | { |
592 | { |
309 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
593 | ptr = alloc (ptr, size); |
310 | |
594 | |
311 | if (!ptr && size) |
595 | if (!ptr && size) |
312 | { |
596 | { |
|
|
597 | #if EV_AVOID_STDIO |
|
|
598 | ev_printerr ("libev: memory allocation failed, aborting.\n"); |
|
|
599 | #else |
313 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
600 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
601 | #endif |
314 | abort (); |
602 | abort (); |
315 | } |
603 | } |
316 | |
604 | |
317 | return ptr; |
605 | return ptr; |
318 | } |
606 | } |
… | |
… | |
320 | #define ev_malloc(size) ev_realloc (0, (size)) |
608 | #define ev_malloc(size) ev_realloc (0, (size)) |
321 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
609 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
322 | |
610 | |
323 | /*****************************************************************************/ |
611 | /*****************************************************************************/ |
324 | |
612 | |
|
|
613 | /* set in reify when reification needed */ |
|
|
614 | #define EV_ANFD_REIFY 1 |
|
|
615 | |
|
|
616 | /* file descriptor info structure */ |
325 | typedef struct |
617 | typedef struct |
326 | { |
618 | { |
327 | WL head; |
619 | WL head; |
328 | unsigned char events; |
620 | unsigned char events; /* the events watched for */ |
|
|
621 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
|
|
622 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
329 | unsigned char reify; |
623 | unsigned char unused; |
|
|
624 | #if EV_USE_EPOLL |
|
|
625 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
626 | #endif |
330 | #if EV_SELECT_IS_WINSOCKET |
627 | #if EV_SELECT_IS_WINSOCKET |
331 | SOCKET handle; |
628 | SOCKET handle; |
332 | #endif |
629 | #endif |
333 | } ANFD; |
630 | } ANFD; |
334 | |
631 | |
|
|
632 | /* stores the pending event set for a given watcher */ |
335 | typedef struct |
633 | typedef struct |
336 | { |
634 | { |
337 | W w; |
635 | W w; |
338 | int events; |
636 | int events; /* the pending event set for the given watcher */ |
339 | } ANPENDING; |
637 | } ANPENDING; |
340 | |
638 | |
341 | #if EV_USE_INOTIFY |
639 | #if EV_USE_INOTIFY |
|
|
640 | /* hash table entry per inotify-id */ |
342 | typedef struct |
641 | typedef struct |
343 | { |
642 | { |
344 | WL head; |
643 | WL head; |
345 | } ANFS; |
644 | } ANFS; |
|
|
645 | #endif |
|
|
646 | |
|
|
647 | /* Heap Entry */ |
|
|
648 | #if EV_HEAP_CACHE_AT |
|
|
649 | /* a heap element */ |
|
|
650 | typedef struct { |
|
|
651 | ev_tstamp at; |
|
|
652 | WT w; |
|
|
653 | } ANHE; |
|
|
654 | |
|
|
655 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
|
|
656 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
|
657 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
658 | #else |
|
|
659 | /* a heap element */ |
|
|
660 | typedef WT ANHE; |
|
|
661 | |
|
|
662 | #define ANHE_w(he) (he) |
|
|
663 | #define ANHE_at(he) (he)->at |
|
|
664 | #define ANHE_at_cache(he) |
346 | #endif |
665 | #endif |
347 | |
666 | |
348 | #if EV_MULTIPLICITY |
667 | #if EV_MULTIPLICITY |
349 | |
668 | |
350 | struct ev_loop |
669 | struct ev_loop |
… | |
… | |
369 | |
688 | |
370 | static int ev_default_loop_ptr; |
689 | static int ev_default_loop_ptr; |
371 | |
690 | |
372 | #endif |
691 | #endif |
373 | |
692 | |
|
|
693 | #if EV_FEATURE_API |
|
|
694 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
695 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
696 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
697 | #else |
|
|
698 | # define EV_RELEASE_CB (void)0 |
|
|
699 | # define EV_ACQUIRE_CB (void)0 |
|
|
700 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
701 | #endif |
|
|
702 | |
|
|
703 | #define EVUNLOOP_RECURSE 0x80 |
|
|
704 | |
374 | /*****************************************************************************/ |
705 | /*****************************************************************************/ |
375 | |
706 | |
|
|
707 | #ifndef EV_HAVE_EV_TIME |
376 | ev_tstamp |
708 | ev_tstamp |
377 | ev_time (void) |
709 | ev_time (void) |
378 | { |
710 | { |
379 | #if EV_USE_REALTIME |
711 | #if EV_USE_REALTIME |
|
|
712 | if (expect_true (have_realtime)) |
|
|
713 | { |
380 | struct timespec ts; |
714 | struct timespec ts; |
381 | clock_gettime (CLOCK_REALTIME, &ts); |
715 | clock_gettime (CLOCK_REALTIME, &ts); |
382 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
716 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
383 | #else |
717 | } |
|
|
718 | #endif |
|
|
719 | |
384 | struct timeval tv; |
720 | struct timeval tv; |
385 | gettimeofday (&tv, 0); |
721 | gettimeofday (&tv, 0); |
386 | return tv.tv_sec + tv.tv_usec * 1e-6; |
722 | return tv.tv_sec + tv.tv_usec * 1e-6; |
387 | #endif |
|
|
388 | } |
723 | } |
|
|
724 | #endif |
389 | |
725 | |
390 | ev_tstamp inline_size |
726 | inline_size ev_tstamp |
391 | get_clock (void) |
727 | get_clock (void) |
392 | { |
728 | { |
393 | #if EV_USE_MONOTONIC |
729 | #if EV_USE_MONOTONIC |
394 | if (expect_true (have_monotonic)) |
730 | if (expect_true (have_monotonic)) |
395 | { |
731 | { |
… | |
… | |
408 | { |
744 | { |
409 | return ev_rt_now; |
745 | return ev_rt_now; |
410 | } |
746 | } |
411 | #endif |
747 | #endif |
412 | |
748 | |
413 | int inline_size |
749 | void |
|
|
750 | ev_sleep (ev_tstamp delay) |
|
|
751 | { |
|
|
752 | if (delay > 0.) |
|
|
753 | { |
|
|
754 | #if EV_USE_NANOSLEEP |
|
|
755 | struct timespec ts; |
|
|
756 | |
|
|
757 | ts.tv_sec = (time_t)delay; |
|
|
758 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
759 | |
|
|
760 | nanosleep (&ts, 0); |
|
|
761 | #elif defined(_WIN32) |
|
|
762 | Sleep ((unsigned long)(delay * 1e3)); |
|
|
763 | #else |
|
|
764 | struct timeval tv; |
|
|
765 | |
|
|
766 | tv.tv_sec = (time_t)delay; |
|
|
767 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
768 | |
|
|
769 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
|
|
770 | /* something not guaranteed by newer posix versions, but guaranteed */ |
|
|
771 | /* by older ones */ |
|
|
772 | select (0, 0, 0, 0, &tv); |
|
|
773 | #endif |
|
|
774 | } |
|
|
775 | } |
|
|
776 | |
|
|
777 | /*****************************************************************************/ |
|
|
778 | |
|
|
779 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
|
|
780 | |
|
|
781 | /* find a suitable new size for the given array, */ |
|
|
782 | /* hopefully by rounding to a ncie-to-malloc size */ |
|
|
783 | inline_size int |
414 | array_nextsize (int elem, int cur, int cnt) |
784 | array_nextsize (int elem, int cur, int cnt) |
415 | { |
785 | { |
416 | int ncur = cur + 1; |
786 | int ncur = cur + 1; |
417 | |
787 | |
418 | do |
788 | do |
419 | ncur <<= 1; |
789 | ncur <<= 1; |
420 | while (cnt > ncur); |
790 | while (cnt > ncur); |
421 | |
791 | |
422 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
792 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
423 | if (elem * ncur > 4096) |
793 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
424 | { |
794 | { |
425 | ncur *= elem; |
795 | ncur *= elem; |
426 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
796 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
427 | ncur = ncur - sizeof (void *) * 4; |
797 | ncur = ncur - sizeof (void *) * 4; |
428 | ncur /= elem; |
798 | ncur /= elem; |
429 | } |
799 | } |
430 | |
800 | |
431 | return ncur; |
801 | return ncur; |
… | |
… | |
435 | array_realloc (int elem, void *base, int *cur, int cnt) |
805 | array_realloc (int elem, void *base, int *cur, int cnt) |
436 | { |
806 | { |
437 | *cur = array_nextsize (elem, *cur, cnt); |
807 | *cur = array_nextsize (elem, *cur, cnt); |
438 | return ev_realloc (base, elem * *cur); |
808 | return ev_realloc (base, elem * *cur); |
439 | } |
809 | } |
|
|
810 | |
|
|
811 | #define array_init_zero(base,count) \ |
|
|
812 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
440 | |
813 | |
441 | #define array_needsize(type,base,cur,cnt,init) \ |
814 | #define array_needsize(type,base,cur,cnt,init) \ |
442 | if (expect_false ((cnt) > (cur))) \ |
815 | if (expect_false ((cnt) > (cur))) \ |
443 | { \ |
816 | { \ |
444 | int ocur_ = (cur); \ |
817 | int ocur_ = (cur); \ |
… | |
… | |
456 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
829 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
457 | } |
830 | } |
458 | #endif |
831 | #endif |
459 | |
832 | |
460 | #define array_free(stem, idx) \ |
833 | #define array_free(stem, idx) \ |
461 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
834 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
462 | |
835 | |
463 | /*****************************************************************************/ |
836 | /*****************************************************************************/ |
|
|
837 | |
|
|
838 | /* dummy callback for pending events */ |
|
|
839 | static void noinline |
|
|
840 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
841 | { |
|
|
842 | } |
464 | |
843 | |
465 | void noinline |
844 | void noinline |
466 | ev_feed_event (EV_P_ void *w, int revents) |
845 | ev_feed_event (EV_P_ void *w, int revents) |
467 | { |
846 | { |
468 | W w_ = (W)w; |
847 | W w_ = (W)w; |
… | |
… | |
477 | pendings [pri][w_->pending - 1].w = w_; |
856 | pendings [pri][w_->pending - 1].w = w_; |
478 | pendings [pri][w_->pending - 1].events = revents; |
857 | pendings [pri][w_->pending - 1].events = revents; |
479 | } |
858 | } |
480 | } |
859 | } |
481 | |
860 | |
482 | void inline_speed |
861 | inline_speed void |
|
|
862 | feed_reverse (EV_P_ W w) |
|
|
863 | { |
|
|
864 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
865 | rfeeds [rfeedcnt++] = w; |
|
|
866 | } |
|
|
867 | |
|
|
868 | inline_size void |
|
|
869 | feed_reverse_done (EV_P_ int revents) |
|
|
870 | { |
|
|
871 | do |
|
|
872 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
873 | while (rfeedcnt); |
|
|
874 | } |
|
|
875 | |
|
|
876 | inline_speed void |
483 | queue_events (EV_P_ W *events, int eventcnt, int type) |
877 | queue_events (EV_P_ W *events, int eventcnt, int type) |
484 | { |
878 | { |
485 | int i; |
879 | int i; |
486 | |
880 | |
487 | for (i = 0; i < eventcnt; ++i) |
881 | for (i = 0; i < eventcnt; ++i) |
488 | ev_feed_event (EV_A_ events [i], type); |
882 | ev_feed_event (EV_A_ events [i], type); |
489 | } |
883 | } |
490 | |
884 | |
491 | /*****************************************************************************/ |
885 | /*****************************************************************************/ |
492 | |
886 | |
493 | void inline_size |
887 | inline_speed void |
494 | anfds_init (ANFD *base, int count) |
|
|
495 | { |
|
|
496 | while (count--) |
|
|
497 | { |
|
|
498 | base->head = 0; |
|
|
499 | base->events = EV_NONE; |
|
|
500 | base->reify = 0; |
|
|
501 | |
|
|
502 | ++base; |
|
|
503 | } |
|
|
504 | } |
|
|
505 | |
|
|
506 | void inline_speed |
|
|
507 | fd_event (EV_P_ int fd, int revents) |
888 | fd_event_nocheck (EV_P_ int fd, int revents) |
508 | { |
889 | { |
509 | ANFD *anfd = anfds + fd; |
890 | ANFD *anfd = anfds + fd; |
510 | ev_io *w; |
891 | ev_io *w; |
511 | |
892 | |
512 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
893 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
516 | if (ev) |
897 | if (ev) |
517 | ev_feed_event (EV_A_ (W)w, ev); |
898 | ev_feed_event (EV_A_ (W)w, ev); |
518 | } |
899 | } |
519 | } |
900 | } |
520 | |
901 | |
|
|
902 | /* do not submit kernel events for fds that have reify set */ |
|
|
903 | /* because that means they changed while we were polling for new events */ |
|
|
904 | inline_speed void |
|
|
905 | fd_event (EV_P_ int fd, int revents) |
|
|
906 | { |
|
|
907 | ANFD *anfd = anfds + fd; |
|
|
908 | |
|
|
909 | if (expect_true (!anfd->reify)) |
|
|
910 | fd_event_nocheck (EV_A_ fd, revents); |
|
|
911 | } |
|
|
912 | |
521 | void |
913 | void |
522 | ev_feed_fd_event (EV_P_ int fd, int revents) |
914 | ev_feed_fd_event (EV_P_ int fd, int revents) |
523 | { |
915 | { |
524 | if (fd >= 0 && fd < anfdmax) |
916 | if (fd >= 0 && fd < anfdmax) |
525 | fd_event (EV_A_ fd, revents); |
917 | fd_event_nocheck (EV_A_ fd, revents); |
526 | } |
918 | } |
527 | |
919 | |
528 | void inline_size |
920 | /* make sure the external fd watch events are in-sync */ |
|
|
921 | /* with the kernel/libev internal state */ |
|
|
922 | inline_size void |
529 | fd_reify (EV_P) |
923 | fd_reify (EV_P) |
530 | { |
924 | { |
531 | int i; |
925 | int i; |
532 | |
926 | |
533 | for (i = 0; i < fdchangecnt; ++i) |
927 | for (i = 0; i < fdchangecnt; ++i) |
… | |
… | |
542 | events |= (unsigned char)w->events; |
936 | events |= (unsigned char)w->events; |
543 | |
937 | |
544 | #if EV_SELECT_IS_WINSOCKET |
938 | #if EV_SELECT_IS_WINSOCKET |
545 | if (events) |
939 | if (events) |
546 | { |
940 | { |
547 | unsigned long argp; |
941 | unsigned long arg; |
548 | anfd->handle = _get_osfhandle (fd); |
942 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
549 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
943 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
550 | } |
944 | } |
551 | #endif |
945 | #endif |
552 | |
946 | |
553 | { |
947 | { |
554 | unsigned char o_events = anfd->events; |
948 | unsigned char o_events = anfd->events; |
555 | unsigned char o_reify = anfd->reify; |
949 | unsigned char o_reify = anfd->reify; |
556 | |
950 | |
557 | anfd->reify = 0; |
951 | anfd->reify = 0; |
558 | anfd->events = events; |
952 | anfd->events = events; |
559 | |
953 | |
560 | if (o_events != events || o_reify & EV_IOFDSET) |
954 | if (o_events != events || o_reify & EV__IOFDSET) |
561 | backend_modify (EV_A_ fd, o_events, events); |
955 | backend_modify (EV_A_ fd, o_events, events); |
562 | } |
956 | } |
563 | } |
957 | } |
564 | |
958 | |
565 | fdchangecnt = 0; |
959 | fdchangecnt = 0; |
566 | } |
960 | } |
567 | |
961 | |
568 | void inline_size |
962 | /* something about the given fd changed */ |
|
|
963 | inline_size void |
569 | fd_change (EV_P_ int fd, int flags) |
964 | fd_change (EV_P_ int fd, int flags) |
570 | { |
965 | { |
571 | unsigned char reify = anfds [fd].reify; |
966 | unsigned char reify = anfds [fd].reify; |
572 | anfds [fd].reify |= flags; |
967 | anfds [fd].reify |= flags; |
573 | |
968 | |
… | |
… | |
577 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
972 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
578 | fdchanges [fdchangecnt - 1] = fd; |
973 | fdchanges [fdchangecnt - 1] = fd; |
579 | } |
974 | } |
580 | } |
975 | } |
581 | |
976 | |
582 | void inline_speed |
977 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
978 | inline_speed void |
583 | fd_kill (EV_P_ int fd) |
979 | fd_kill (EV_P_ int fd) |
584 | { |
980 | { |
585 | ev_io *w; |
981 | ev_io *w; |
586 | |
982 | |
587 | while ((w = (ev_io *)anfds [fd].head)) |
983 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
589 | ev_io_stop (EV_A_ w); |
985 | ev_io_stop (EV_A_ w); |
590 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
986 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
591 | } |
987 | } |
592 | } |
988 | } |
593 | |
989 | |
594 | int inline_size |
990 | /* check whether the given fd is actually valid, for error recovery */ |
|
|
991 | inline_size int |
595 | fd_valid (int fd) |
992 | fd_valid (int fd) |
596 | { |
993 | { |
597 | #ifdef _WIN32 |
994 | #ifdef _WIN32 |
598 | return _get_osfhandle (fd) != -1; |
995 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
599 | #else |
996 | #else |
600 | return fcntl (fd, F_GETFD) != -1; |
997 | return fcntl (fd, F_GETFD) != -1; |
601 | #endif |
998 | #endif |
602 | } |
999 | } |
603 | |
1000 | |
… | |
… | |
607 | { |
1004 | { |
608 | int fd; |
1005 | int fd; |
609 | |
1006 | |
610 | for (fd = 0; fd < anfdmax; ++fd) |
1007 | for (fd = 0; fd < anfdmax; ++fd) |
611 | if (anfds [fd].events) |
1008 | if (anfds [fd].events) |
612 | if (!fd_valid (fd) == -1 && errno == EBADF) |
1009 | if (!fd_valid (fd) && errno == EBADF) |
613 | fd_kill (EV_A_ fd); |
1010 | fd_kill (EV_A_ fd); |
614 | } |
1011 | } |
615 | |
1012 | |
616 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1013 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
617 | static void noinline |
1014 | static void noinline |
… | |
… | |
621 | |
1018 | |
622 | for (fd = anfdmax; fd--; ) |
1019 | for (fd = anfdmax; fd--; ) |
623 | if (anfds [fd].events) |
1020 | if (anfds [fd].events) |
624 | { |
1021 | { |
625 | fd_kill (EV_A_ fd); |
1022 | fd_kill (EV_A_ fd); |
626 | return; |
1023 | break; |
627 | } |
1024 | } |
628 | } |
1025 | } |
629 | |
1026 | |
630 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1027 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
631 | static void noinline |
1028 | static void noinline |
… | |
… | |
635 | |
1032 | |
636 | for (fd = 0; fd < anfdmax; ++fd) |
1033 | for (fd = 0; fd < anfdmax; ++fd) |
637 | if (anfds [fd].events) |
1034 | if (anfds [fd].events) |
638 | { |
1035 | { |
639 | anfds [fd].events = 0; |
1036 | anfds [fd].events = 0; |
|
|
1037 | anfds [fd].emask = 0; |
640 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
1038 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
641 | } |
1039 | } |
642 | } |
1040 | } |
643 | |
1041 | |
644 | /*****************************************************************************/ |
1042 | /* used to prepare libev internal fd's */ |
645 | |
1043 | /* this is not fork-safe */ |
646 | void inline_speed |
1044 | inline_speed void |
647 | upheap (WT *heap, int k) |
|
|
648 | { |
|
|
649 | WT w = heap [k]; |
|
|
650 | |
|
|
651 | while (k) |
|
|
652 | { |
|
|
653 | int p = (k - 1) >> 1; |
|
|
654 | |
|
|
655 | if (heap [p]->at <= w->at) |
|
|
656 | break; |
|
|
657 | |
|
|
658 | heap [k] = heap [p]; |
|
|
659 | ((W)heap [k])->active = k + 1; |
|
|
660 | k = p; |
|
|
661 | } |
|
|
662 | |
|
|
663 | heap [k] = w; |
|
|
664 | ((W)heap [k])->active = k + 1; |
|
|
665 | } |
|
|
666 | |
|
|
667 | void inline_speed |
|
|
668 | downheap (WT *heap, int N, int k) |
|
|
669 | { |
|
|
670 | WT w = heap [k]; |
|
|
671 | |
|
|
672 | for (;;) |
|
|
673 | { |
|
|
674 | int c = (k << 1) + 1; |
|
|
675 | |
|
|
676 | if (c >= N) |
|
|
677 | break; |
|
|
678 | |
|
|
679 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
680 | ? 1 : 0; |
|
|
681 | |
|
|
682 | if (w->at <= heap [c]->at) |
|
|
683 | break; |
|
|
684 | |
|
|
685 | heap [k] = heap [c]; |
|
|
686 | ((W)heap [k])->active = k + 1; |
|
|
687 | |
|
|
688 | k = c; |
|
|
689 | } |
|
|
690 | |
|
|
691 | heap [k] = w; |
|
|
692 | ((W)heap [k])->active = k + 1; |
|
|
693 | } |
|
|
694 | |
|
|
695 | void inline_size |
|
|
696 | adjustheap (WT *heap, int N, int k) |
|
|
697 | { |
|
|
698 | upheap (heap, k); |
|
|
699 | downheap (heap, N, k); |
|
|
700 | } |
|
|
701 | |
|
|
702 | /*****************************************************************************/ |
|
|
703 | |
|
|
704 | typedef struct |
|
|
705 | { |
|
|
706 | WL head; |
|
|
707 | sig_atomic_t volatile gotsig; |
|
|
708 | } ANSIG; |
|
|
709 | |
|
|
710 | static ANSIG *signals; |
|
|
711 | static int signalmax; |
|
|
712 | |
|
|
713 | static int sigpipe [2]; |
|
|
714 | static sig_atomic_t volatile gotsig; |
|
|
715 | static ev_io sigev; |
|
|
716 | |
|
|
717 | void inline_size |
|
|
718 | signals_init (ANSIG *base, int count) |
|
|
719 | { |
|
|
720 | while (count--) |
|
|
721 | { |
|
|
722 | base->head = 0; |
|
|
723 | base->gotsig = 0; |
|
|
724 | |
|
|
725 | ++base; |
|
|
726 | } |
|
|
727 | } |
|
|
728 | |
|
|
729 | static void |
|
|
730 | sighandler (int signum) |
|
|
731 | { |
|
|
732 | #if _WIN32 |
|
|
733 | signal (signum, sighandler); |
|
|
734 | #endif |
|
|
735 | |
|
|
736 | signals [signum - 1].gotsig = 1; |
|
|
737 | |
|
|
738 | if (!gotsig) |
|
|
739 | { |
|
|
740 | int old_errno = errno; |
|
|
741 | gotsig = 1; |
|
|
742 | write (sigpipe [1], &signum, 1); |
|
|
743 | errno = old_errno; |
|
|
744 | } |
|
|
745 | } |
|
|
746 | |
|
|
747 | void noinline |
|
|
748 | ev_feed_signal_event (EV_P_ int signum) |
|
|
749 | { |
|
|
750 | WL w; |
|
|
751 | |
|
|
752 | #if EV_MULTIPLICITY |
|
|
753 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
754 | #endif |
|
|
755 | |
|
|
756 | --signum; |
|
|
757 | |
|
|
758 | if (signum < 0 || signum >= signalmax) |
|
|
759 | return; |
|
|
760 | |
|
|
761 | signals [signum].gotsig = 0; |
|
|
762 | |
|
|
763 | for (w = signals [signum].head; w; w = w->next) |
|
|
764 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
765 | } |
|
|
766 | |
|
|
767 | static void |
|
|
768 | sigcb (EV_P_ ev_io *iow, int revents) |
|
|
769 | { |
|
|
770 | int signum; |
|
|
771 | |
|
|
772 | read (sigpipe [0], &revents, 1); |
|
|
773 | gotsig = 0; |
|
|
774 | |
|
|
775 | for (signum = signalmax; signum--; ) |
|
|
776 | if (signals [signum].gotsig) |
|
|
777 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
778 | } |
|
|
779 | |
|
|
780 | void inline_speed |
|
|
781 | fd_intern (int fd) |
1045 | fd_intern (int fd) |
782 | { |
1046 | { |
783 | #ifdef _WIN32 |
1047 | #ifdef _WIN32 |
784 | int arg = 1; |
1048 | unsigned long arg = 1; |
785 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1049 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
786 | #else |
1050 | #else |
787 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1051 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
788 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1052 | fcntl (fd, F_SETFL, O_NONBLOCK); |
789 | #endif |
1053 | #endif |
790 | } |
1054 | } |
791 | |
1055 | |
|
|
1056 | /*****************************************************************************/ |
|
|
1057 | |
|
|
1058 | /* |
|
|
1059 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
|
|
1060 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
|
|
1061 | * the branching factor of the d-tree. |
|
|
1062 | */ |
|
|
1063 | |
|
|
1064 | /* |
|
|
1065 | * at the moment we allow libev the luxury of two heaps, |
|
|
1066 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
1067 | * which is more cache-efficient. |
|
|
1068 | * the difference is about 5% with 50000+ watchers. |
|
|
1069 | */ |
|
|
1070 | #if EV_USE_4HEAP |
|
|
1071 | |
|
|
1072 | #define DHEAP 4 |
|
|
1073 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
1074 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
1075 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
|
|
1076 | |
|
|
1077 | /* away from the root */ |
|
|
1078 | inline_speed void |
|
|
1079 | downheap (ANHE *heap, int N, int k) |
|
|
1080 | { |
|
|
1081 | ANHE he = heap [k]; |
|
|
1082 | ANHE *E = heap + N + HEAP0; |
|
|
1083 | |
|
|
1084 | for (;;) |
|
|
1085 | { |
|
|
1086 | ev_tstamp minat; |
|
|
1087 | ANHE *minpos; |
|
|
1088 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
|
|
1089 | |
|
|
1090 | /* find minimum child */ |
|
|
1091 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
1092 | { |
|
|
1093 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
1094 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
1095 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
1096 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
1097 | } |
|
|
1098 | else if (pos < E) |
|
|
1099 | { |
|
|
1100 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
1101 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
1102 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
1103 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
1104 | } |
|
|
1105 | else |
|
|
1106 | break; |
|
|
1107 | |
|
|
1108 | if (ANHE_at (he) <= minat) |
|
|
1109 | break; |
|
|
1110 | |
|
|
1111 | heap [k] = *minpos; |
|
|
1112 | ev_active (ANHE_w (*minpos)) = k; |
|
|
1113 | |
|
|
1114 | k = minpos - heap; |
|
|
1115 | } |
|
|
1116 | |
|
|
1117 | heap [k] = he; |
|
|
1118 | ev_active (ANHE_w (he)) = k; |
|
|
1119 | } |
|
|
1120 | |
|
|
1121 | #else /* 4HEAP */ |
|
|
1122 | |
|
|
1123 | #define HEAP0 1 |
|
|
1124 | #define HPARENT(k) ((k) >> 1) |
|
|
1125 | #define UPHEAP_DONE(p,k) (!(p)) |
|
|
1126 | |
|
|
1127 | /* away from the root */ |
|
|
1128 | inline_speed void |
|
|
1129 | downheap (ANHE *heap, int N, int k) |
|
|
1130 | { |
|
|
1131 | ANHE he = heap [k]; |
|
|
1132 | |
|
|
1133 | for (;;) |
|
|
1134 | { |
|
|
1135 | int c = k << 1; |
|
|
1136 | |
|
|
1137 | if (c >= N + HEAP0) |
|
|
1138 | break; |
|
|
1139 | |
|
|
1140 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
1141 | ? 1 : 0; |
|
|
1142 | |
|
|
1143 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
1144 | break; |
|
|
1145 | |
|
|
1146 | heap [k] = heap [c]; |
|
|
1147 | ev_active (ANHE_w (heap [k])) = k; |
|
|
1148 | |
|
|
1149 | k = c; |
|
|
1150 | } |
|
|
1151 | |
|
|
1152 | heap [k] = he; |
|
|
1153 | ev_active (ANHE_w (he)) = k; |
|
|
1154 | } |
|
|
1155 | #endif |
|
|
1156 | |
|
|
1157 | /* towards the root */ |
|
|
1158 | inline_speed void |
|
|
1159 | upheap (ANHE *heap, int k) |
|
|
1160 | { |
|
|
1161 | ANHE he = heap [k]; |
|
|
1162 | |
|
|
1163 | for (;;) |
|
|
1164 | { |
|
|
1165 | int p = HPARENT (k); |
|
|
1166 | |
|
|
1167 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
1168 | break; |
|
|
1169 | |
|
|
1170 | heap [k] = heap [p]; |
|
|
1171 | ev_active (ANHE_w (heap [k])) = k; |
|
|
1172 | k = p; |
|
|
1173 | } |
|
|
1174 | |
|
|
1175 | heap [k] = he; |
|
|
1176 | ev_active (ANHE_w (he)) = k; |
|
|
1177 | } |
|
|
1178 | |
|
|
1179 | /* move an element suitably so it is in a correct place */ |
|
|
1180 | inline_size void |
|
|
1181 | adjustheap (ANHE *heap, int N, int k) |
|
|
1182 | { |
|
|
1183 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
|
|
1184 | upheap (heap, k); |
|
|
1185 | else |
|
|
1186 | downheap (heap, N, k); |
|
|
1187 | } |
|
|
1188 | |
|
|
1189 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
1190 | inline_size void |
|
|
1191 | reheap (ANHE *heap, int N) |
|
|
1192 | { |
|
|
1193 | int i; |
|
|
1194 | |
|
|
1195 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
1196 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
1197 | for (i = 0; i < N; ++i) |
|
|
1198 | upheap (heap, i + HEAP0); |
|
|
1199 | } |
|
|
1200 | |
|
|
1201 | /*****************************************************************************/ |
|
|
1202 | |
|
|
1203 | /* associate signal watchers to a signal signal */ |
|
|
1204 | typedef struct |
|
|
1205 | { |
|
|
1206 | EV_ATOMIC_T pending; |
|
|
1207 | #if EV_MULTIPLICITY |
|
|
1208 | EV_P; |
|
|
1209 | #endif |
|
|
1210 | WL head; |
|
|
1211 | } ANSIG; |
|
|
1212 | |
|
|
1213 | static ANSIG signals [EV_NSIG - 1]; |
|
|
1214 | |
|
|
1215 | /*****************************************************************************/ |
|
|
1216 | |
|
|
1217 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
1218 | |
792 | static void noinline |
1219 | static void noinline |
793 | siginit (EV_P) |
1220 | evpipe_init (EV_P) |
794 | { |
1221 | { |
|
|
1222 | if (!ev_is_active (&pipe_w)) |
|
|
1223 | { |
|
|
1224 | # if EV_USE_EVENTFD |
|
|
1225 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1226 | if (evfd < 0 && errno == EINVAL) |
|
|
1227 | evfd = eventfd (0, 0); |
|
|
1228 | |
|
|
1229 | if (evfd >= 0) |
|
|
1230 | { |
|
|
1231 | evpipe [0] = -1; |
|
|
1232 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
|
|
1233 | ev_io_set (&pipe_w, evfd, EV_READ); |
|
|
1234 | } |
|
|
1235 | else |
|
|
1236 | # endif |
|
|
1237 | { |
|
|
1238 | while (pipe (evpipe)) |
|
|
1239 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
1240 | |
795 | fd_intern (sigpipe [0]); |
1241 | fd_intern (evpipe [0]); |
796 | fd_intern (sigpipe [1]); |
1242 | fd_intern (evpipe [1]); |
|
|
1243 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
|
|
1244 | } |
797 | |
1245 | |
798 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
799 | ev_io_start (EV_A_ &sigev); |
1246 | ev_io_start (EV_A_ &pipe_w); |
800 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1247 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1248 | } |
|
|
1249 | } |
|
|
1250 | |
|
|
1251 | inline_size void |
|
|
1252 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1253 | { |
|
|
1254 | if (!*flag) |
|
|
1255 | { |
|
|
1256 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1257 | char dummy; |
|
|
1258 | |
|
|
1259 | *flag = 1; |
|
|
1260 | |
|
|
1261 | #if EV_USE_EVENTFD |
|
|
1262 | if (evfd >= 0) |
|
|
1263 | { |
|
|
1264 | uint64_t counter = 1; |
|
|
1265 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1266 | } |
|
|
1267 | else |
|
|
1268 | #endif |
|
|
1269 | write (evpipe [1], &dummy, 1); |
|
|
1270 | |
|
|
1271 | errno = old_errno; |
|
|
1272 | } |
|
|
1273 | } |
|
|
1274 | |
|
|
1275 | /* called whenever the libev signal pipe */ |
|
|
1276 | /* got some events (signal, async) */ |
|
|
1277 | static void |
|
|
1278 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
1279 | { |
|
|
1280 | int i; |
|
|
1281 | |
|
|
1282 | #if EV_USE_EVENTFD |
|
|
1283 | if (evfd >= 0) |
|
|
1284 | { |
|
|
1285 | uint64_t counter; |
|
|
1286 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1287 | } |
|
|
1288 | else |
|
|
1289 | #endif |
|
|
1290 | { |
|
|
1291 | char dummy; |
|
|
1292 | read (evpipe [0], &dummy, 1); |
|
|
1293 | } |
|
|
1294 | |
|
|
1295 | if (sig_pending) |
|
|
1296 | { |
|
|
1297 | sig_pending = 0; |
|
|
1298 | |
|
|
1299 | for (i = EV_NSIG - 1; i--; ) |
|
|
1300 | if (expect_false (signals [i].pending)) |
|
|
1301 | ev_feed_signal_event (EV_A_ i + 1); |
|
|
1302 | } |
|
|
1303 | |
|
|
1304 | #if EV_ASYNC_ENABLE |
|
|
1305 | if (async_pending) |
|
|
1306 | { |
|
|
1307 | async_pending = 0; |
|
|
1308 | |
|
|
1309 | for (i = asynccnt; i--; ) |
|
|
1310 | if (asyncs [i]->sent) |
|
|
1311 | { |
|
|
1312 | asyncs [i]->sent = 0; |
|
|
1313 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
1314 | } |
|
|
1315 | } |
|
|
1316 | #endif |
801 | } |
1317 | } |
802 | |
1318 | |
803 | /*****************************************************************************/ |
1319 | /*****************************************************************************/ |
804 | |
1320 | |
|
|
1321 | static void |
|
|
1322 | ev_sighandler (int signum) |
|
|
1323 | { |
|
|
1324 | #if EV_MULTIPLICITY |
|
|
1325 | EV_P = signals [signum - 1].loop; |
|
|
1326 | #endif |
|
|
1327 | |
|
|
1328 | #ifdef _WIN32 |
|
|
1329 | signal (signum, ev_sighandler); |
|
|
1330 | #endif |
|
|
1331 | |
|
|
1332 | signals [signum - 1].pending = 1; |
|
|
1333 | evpipe_write (EV_A_ &sig_pending); |
|
|
1334 | } |
|
|
1335 | |
|
|
1336 | void noinline |
|
|
1337 | ev_feed_signal_event (EV_P_ int signum) |
|
|
1338 | { |
|
|
1339 | WL w; |
|
|
1340 | |
|
|
1341 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1342 | return; |
|
|
1343 | |
|
|
1344 | --signum; |
|
|
1345 | |
|
|
1346 | #if EV_MULTIPLICITY |
|
|
1347 | /* it is permissible to try to feed a signal to the wrong loop */ |
|
|
1348 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
|
|
1349 | |
|
|
1350 | if (expect_false (signals [signum].loop != EV_A)) |
|
|
1351 | return; |
|
|
1352 | #endif |
|
|
1353 | |
|
|
1354 | signals [signum].pending = 0; |
|
|
1355 | |
|
|
1356 | for (w = signals [signum].head; w; w = w->next) |
|
|
1357 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
1358 | } |
|
|
1359 | |
|
|
1360 | #if EV_USE_SIGNALFD |
|
|
1361 | static void |
|
|
1362 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1363 | { |
|
|
1364 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1365 | |
|
|
1366 | for (;;) |
|
|
1367 | { |
|
|
1368 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1369 | |
|
|
1370 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1371 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1372 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1373 | |
|
|
1374 | if (res < (ssize_t)sizeof (si)) |
|
|
1375 | break; |
|
|
1376 | } |
|
|
1377 | } |
|
|
1378 | #endif |
|
|
1379 | |
|
|
1380 | #endif |
|
|
1381 | |
|
|
1382 | /*****************************************************************************/ |
|
|
1383 | |
|
|
1384 | #if EV_CHILD_ENABLE |
805 | static WL childs [EV_PID_HASHSIZE]; |
1385 | static WL childs [EV_PID_HASHSIZE]; |
806 | |
1386 | |
807 | #ifndef _WIN32 |
|
|
808 | |
|
|
809 | static ev_signal childev; |
1387 | static ev_signal childev; |
810 | |
1388 | |
811 | void inline_speed |
1389 | #ifndef WIFCONTINUED |
|
|
1390 | # define WIFCONTINUED(status) 0 |
|
|
1391 | #endif |
|
|
1392 | |
|
|
1393 | /* handle a single child status event */ |
|
|
1394 | inline_speed void |
812 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
1395 | child_reap (EV_P_ int chain, int pid, int status) |
813 | { |
1396 | { |
814 | ev_child *w; |
1397 | ev_child *w; |
|
|
1398 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
815 | |
1399 | |
816 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1400 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1401 | { |
817 | if (w->pid == pid || !w->pid) |
1402 | if ((w->pid == pid || !w->pid) |
|
|
1403 | && (!traced || (w->flags & 1))) |
818 | { |
1404 | { |
819 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
1405 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
820 | w->rpid = pid; |
1406 | w->rpid = pid; |
821 | w->rstatus = status; |
1407 | w->rstatus = status; |
822 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
1408 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
823 | } |
1409 | } |
|
|
1410 | } |
824 | } |
1411 | } |
825 | |
1412 | |
826 | #ifndef WCONTINUED |
1413 | #ifndef WCONTINUED |
827 | # define WCONTINUED 0 |
1414 | # define WCONTINUED 0 |
828 | #endif |
1415 | #endif |
829 | |
1416 | |
|
|
1417 | /* called on sigchld etc., calls waitpid */ |
830 | static void |
1418 | static void |
831 | childcb (EV_P_ ev_signal *sw, int revents) |
1419 | childcb (EV_P_ ev_signal *sw, int revents) |
832 | { |
1420 | { |
833 | int pid, status; |
1421 | int pid, status; |
834 | |
1422 | |
… | |
… | |
837 | if (!WCONTINUED |
1425 | if (!WCONTINUED |
838 | || errno != EINVAL |
1426 | || errno != EINVAL |
839 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
1427 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
840 | return; |
1428 | return; |
841 | |
1429 | |
842 | /* make sure we are called again until all childs have been reaped */ |
1430 | /* make sure we are called again until all children have been reaped */ |
843 | /* we need to do it this way so that the callback gets called before we continue */ |
1431 | /* we need to do it this way so that the callback gets called before we continue */ |
844 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1432 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
845 | |
1433 | |
846 | child_reap (EV_A_ sw, pid, pid, status); |
1434 | child_reap (EV_A_ pid, pid, status); |
847 | if (EV_PID_HASHSIZE > 1) |
1435 | if ((EV_PID_HASHSIZE) > 1) |
848 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1436 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
849 | } |
1437 | } |
850 | |
1438 | |
851 | #endif |
1439 | #endif |
852 | |
1440 | |
853 | /*****************************************************************************/ |
1441 | /*****************************************************************************/ |
… | |
… | |
915 | /* kqueue is borked on everything but netbsd apparently */ |
1503 | /* kqueue is borked on everything but netbsd apparently */ |
916 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1504 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
917 | flags &= ~EVBACKEND_KQUEUE; |
1505 | flags &= ~EVBACKEND_KQUEUE; |
918 | #endif |
1506 | #endif |
919 | #ifdef __APPLE__ |
1507 | #ifdef __APPLE__ |
920 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1508 | /* only select works correctly on that "unix-certified" platform */ |
921 | flags &= ~EVBACKEND_POLL; |
1509 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1510 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
|
|
1511 | #endif |
|
|
1512 | #ifdef __FreeBSD__ |
|
|
1513 | flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ |
922 | #endif |
1514 | #endif |
923 | |
1515 | |
924 | return flags; |
1516 | return flags; |
925 | } |
1517 | } |
926 | |
1518 | |
927 | unsigned int |
1519 | unsigned int |
928 | ev_embeddable_backends (void) |
1520 | ev_embeddable_backends (void) |
929 | { |
1521 | { |
930 | return EVBACKEND_EPOLL |
1522 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
931 | | EVBACKEND_KQUEUE |
1523 | |
932 | | EVBACKEND_PORT; |
1524 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1525 | /* please fix it and tell me how to detect the fix */ |
|
|
1526 | flags &= ~EVBACKEND_EPOLL; |
|
|
1527 | |
|
|
1528 | return flags; |
933 | } |
1529 | } |
934 | |
1530 | |
935 | unsigned int |
1531 | unsigned int |
936 | ev_backend (EV_P) |
1532 | ev_backend (EV_P) |
937 | { |
1533 | { |
938 | return backend; |
1534 | return backend; |
939 | } |
1535 | } |
940 | |
1536 | |
|
|
1537 | #if EV_FEATURE_API |
941 | unsigned int |
1538 | unsigned int |
942 | ev_loop_count (EV_P) |
1539 | ev_iteration (EV_P) |
943 | { |
1540 | { |
944 | return loop_count; |
1541 | return loop_count; |
945 | } |
1542 | } |
946 | |
1543 | |
|
|
1544 | unsigned int |
|
|
1545 | ev_depth (EV_P) |
|
|
1546 | { |
|
|
1547 | return loop_depth; |
|
|
1548 | } |
|
|
1549 | |
|
|
1550 | void |
|
|
1551 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1552 | { |
|
|
1553 | io_blocktime = interval; |
|
|
1554 | } |
|
|
1555 | |
|
|
1556 | void |
|
|
1557 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1558 | { |
|
|
1559 | timeout_blocktime = interval; |
|
|
1560 | } |
|
|
1561 | |
|
|
1562 | void |
|
|
1563 | ev_set_userdata (EV_P_ void *data) |
|
|
1564 | { |
|
|
1565 | userdata = data; |
|
|
1566 | } |
|
|
1567 | |
|
|
1568 | void * |
|
|
1569 | ev_userdata (EV_P) |
|
|
1570 | { |
|
|
1571 | return userdata; |
|
|
1572 | } |
|
|
1573 | |
|
|
1574 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1575 | { |
|
|
1576 | invoke_cb = invoke_pending_cb; |
|
|
1577 | } |
|
|
1578 | |
|
|
1579 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1580 | { |
|
|
1581 | release_cb = release; |
|
|
1582 | acquire_cb = acquire; |
|
|
1583 | } |
|
|
1584 | #endif |
|
|
1585 | |
|
|
1586 | /* initialise a loop structure, must be zero-initialised */ |
947 | static void noinline |
1587 | static void noinline |
948 | loop_init (EV_P_ unsigned int flags) |
1588 | loop_init (EV_P_ unsigned int flags) |
949 | { |
1589 | { |
950 | if (!backend) |
1590 | if (!backend) |
951 | { |
1591 | { |
|
|
1592 | #if EV_USE_REALTIME |
|
|
1593 | if (!have_realtime) |
|
|
1594 | { |
|
|
1595 | struct timespec ts; |
|
|
1596 | |
|
|
1597 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1598 | have_realtime = 1; |
|
|
1599 | } |
|
|
1600 | #endif |
|
|
1601 | |
952 | #if EV_USE_MONOTONIC |
1602 | #if EV_USE_MONOTONIC |
|
|
1603 | if (!have_monotonic) |
953 | { |
1604 | { |
954 | struct timespec ts; |
1605 | struct timespec ts; |
|
|
1606 | |
955 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1607 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
956 | have_monotonic = 1; |
1608 | have_monotonic = 1; |
957 | } |
1609 | } |
958 | #endif |
1610 | #endif |
959 | |
|
|
960 | ev_rt_now = ev_time (); |
|
|
961 | mn_now = get_clock (); |
|
|
962 | now_floor = mn_now; |
|
|
963 | rtmn_diff = ev_rt_now - mn_now; |
|
|
964 | |
1611 | |
965 | /* pid check not overridable via env */ |
1612 | /* pid check not overridable via env */ |
966 | #ifndef _WIN32 |
1613 | #ifndef _WIN32 |
967 | if (flags & EVFLAG_FORKCHECK) |
1614 | if (flags & EVFLAG_FORKCHECK) |
968 | curpid = getpid (); |
1615 | curpid = getpid (); |
… | |
… | |
971 | if (!(flags & EVFLAG_NOENV) |
1618 | if (!(flags & EVFLAG_NOENV) |
972 | && !enable_secure () |
1619 | && !enable_secure () |
973 | && getenv ("LIBEV_FLAGS")) |
1620 | && getenv ("LIBEV_FLAGS")) |
974 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1621 | flags = atoi (getenv ("LIBEV_FLAGS")); |
975 | |
1622 | |
|
|
1623 | ev_rt_now = ev_time (); |
|
|
1624 | mn_now = get_clock (); |
|
|
1625 | now_floor = mn_now; |
|
|
1626 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1627 | #if EV_FEATURE_API |
|
|
1628 | invoke_cb = ev_invoke_pending; |
|
|
1629 | #endif |
|
|
1630 | |
|
|
1631 | io_blocktime = 0.; |
|
|
1632 | timeout_blocktime = 0.; |
|
|
1633 | backend = 0; |
|
|
1634 | backend_fd = -1; |
|
|
1635 | sig_pending = 0; |
|
|
1636 | #if EV_ASYNC_ENABLE |
|
|
1637 | async_pending = 0; |
|
|
1638 | #endif |
|
|
1639 | #if EV_USE_INOTIFY |
|
|
1640 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
|
|
1641 | #endif |
|
|
1642 | #if EV_USE_SIGNALFD |
|
|
1643 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
|
|
1644 | #endif |
|
|
1645 | |
976 | if (!(flags & 0x0000ffffUL)) |
1646 | if (!(flags & 0x0000ffffU)) |
977 | flags |= ev_recommended_backends (); |
1647 | flags |= ev_recommended_backends (); |
978 | |
|
|
979 | backend = 0; |
|
|
980 | backend_fd = -1; |
|
|
981 | #if EV_USE_INOTIFY |
|
|
982 | fs_fd = -2; |
|
|
983 | #endif |
|
|
984 | |
1648 | |
985 | #if EV_USE_PORT |
1649 | #if EV_USE_PORT |
986 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1650 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
987 | #endif |
1651 | #endif |
988 | #if EV_USE_KQUEUE |
1652 | #if EV_USE_KQUEUE |
… | |
… | |
996 | #endif |
1660 | #endif |
997 | #if EV_USE_SELECT |
1661 | #if EV_USE_SELECT |
998 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1662 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
999 | #endif |
1663 | #endif |
1000 | |
1664 | |
|
|
1665 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1666 | |
|
|
1667 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1001 | ev_init (&sigev, sigcb); |
1668 | ev_init (&pipe_w, pipecb); |
1002 | ev_set_priority (&sigev, EV_MAXPRI); |
1669 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
1670 | #endif |
1003 | } |
1671 | } |
1004 | } |
1672 | } |
1005 | |
1673 | |
|
|
1674 | /* free up a loop structure */ |
1006 | static void noinline |
1675 | static void noinline |
1007 | loop_destroy (EV_P) |
1676 | loop_destroy (EV_P) |
1008 | { |
1677 | { |
1009 | int i; |
1678 | int i; |
|
|
1679 | |
|
|
1680 | if (ev_is_active (&pipe_w)) |
|
|
1681 | { |
|
|
1682 | /*ev_ref (EV_A);*/ |
|
|
1683 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
|
|
1684 | |
|
|
1685 | #if EV_USE_EVENTFD |
|
|
1686 | if (evfd >= 0) |
|
|
1687 | close (evfd); |
|
|
1688 | #endif |
|
|
1689 | |
|
|
1690 | if (evpipe [0] >= 0) |
|
|
1691 | { |
|
|
1692 | EV_WIN32_CLOSE_FD (evpipe [0]); |
|
|
1693 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
1694 | } |
|
|
1695 | } |
|
|
1696 | |
|
|
1697 | #if EV_USE_SIGNALFD |
|
|
1698 | if (ev_is_active (&sigfd_w)) |
|
|
1699 | close (sigfd); |
|
|
1700 | #endif |
1010 | |
1701 | |
1011 | #if EV_USE_INOTIFY |
1702 | #if EV_USE_INOTIFY |
1012 | if (fs_fd >= 0) |
1703 | if (fs_fd >= 0) |
1013 | close (fs_fd); |
1704 | close (fs_fd); |
1014 | #endif |
1705 | #endif |
… | |
… | |
1038 | #if EV_IDLE_ENABLE |
1729 | #if EV_IDLE_ENABLE |
1039 | array_free (idle, [i]); |
1730 | array_free (idle, [i]); |
1040 | #endif |
1731 | #endif |
1041 | } |
1732 | } |
1042 | |
1733 | |
1043 | ev_free (anfds); anfdmax = 0; |
1734 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1044 | |
1735 | |
1045 | /* have to use the microsoft-never-gets-it-right macro */ |
1736 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1737 | array_free (rfeed, EMPTY); |
1046 | array_free (fdchange, EMPTY); |
1738 | array_free (fdchange, EMPTY); |
1047 | array_free (timer, EMPTY); |
1739 | array_free (timer, EMPTY); |
1048 | #if EV_PERIODIC_ENABLE |
1740 | #if EV_PERIODIC_ENABLE |
1049 | array_free (periodic, EMPTY); |
1741 | array_free (periodic, EMPTY); |
1050 | #endif |
1742 | #endif |
1051 | #if EV_FORK_ENABLE |
1743 | #if EV_FORK_ENABLE |
1052 | array_free (fork, EMPTY); |
1744 | array_free (fork, EMPTY); |
1053 | #endif |
1745 | #endif |
1054 | array_free (prepare, EMPTY); |
1746 | array_free (prepare, EMPTY); |
1055 | array_free (check, EMPTY); |
1747 | array_free (check, EMPTY); |
|
|
1748 | #if EV_ASYNC_ENABLE |
|
|
1749 | array_free (async, EMPTY); |
|
|
1750 | #endif |
1056 | |
1751 | |
1057 | backend = 0; |
1752 | backend = 0; |
1058 | } |
1753 | } |
1059 | |
1754 | |
|
|
1755 | #if EV_USE_INOTIFY |
1060 | void inline_size infy_fork (EV_P); |
1756 | inline_size void infy_fork (EV_P); |
|
|
1757 | #endif |
1061 | |
1758 | |
1062 | void inline_size |
1759 | inline_size void |
1063 | loop_fork (EV_P) |
1760 | loop_fork (EV_P) |
1064 | { |
1761 | { |
1065 | #if EV_USE_PORT |
1762 | #if EV_USE_PORT |
1066 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1763 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1067 | #endif |
1764 | #endif |
… | |
… | |
1073 | #endif |
1770 | #endif |
1074 | #if EV_USE_INOTIFY |
1771 | #if EV_USE_INOTIFY |
1075 | infy_fork (EV_A); |
1772 | infy_fork (EV_A); |
1076 | #endif |
1773 | #endif |
1077 | |
1774 | |
1078 | if (ev_is_active (&sigev)) |
1775 | if (ev_is_active (&pipe_w)) |
1079 | { |
1776 | { |
1080 | /* default loop */ |
1777 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1778 | /* while we modify the fd vars */ |
|
|
1779 | sig_pending = 1; |
|
|
1780 | #if EV_ASYNC_ENABLE |
|
|
1781 | async_pending = 1; |
|
|
1782 | #endif |
1081 | |
1783 | |
1082 | ev_ref (EV_A); |
1784 | ev_ref (EV_A); |
1083 | ev_io_stop (EV_A_ &sigev); |
1785 | ev_io_stop (EV_A_ &pipe_w); |
1084 | close (sigpipe [0]); |
|
|
1085 | close (sigpipe [1]); |
|
|
1086 | |
1786 | |
1087 | while (pipe (sigpipe)) |
1787 | #if EV_USE_EVENTFD |
1088 | syserr ("(libev) error creating pipe"); |
1788 | if (evfd >= 0) |
|
|
1789 | close (evfd); |
|
|
1790 | #endif |
1089 | |
1791 | |
|
|
1792 | if (evpipe [0] >= 0) |
|
|
1793 | { |
|
|
1794 | EV_WIN32_CLOSE_FD (evpipe [0]); |
|
|
1795 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
1796 | } |
|
|
1797 | |
|
|
1798 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1090 | siginit (EV_A); |
1799 | evpipe_init (EV_A); |
|
|
1800 | /* now iterate over everything, in case we missed something */ |
|
|
1801 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
1802 | #endif |
1091 | } |
1803 | } |
1092 | |
1804 | |
1093 | postfork = 0; |
1805 | postfork = 0; |
1094 | } |
1806 | } |
1095 | |
1807 | |
1096 | #if EV_MULTIPLICITY |
1808 | #if EV_MULTIPLICITY |
|
|
1809 | |
1097 | struct ev_loop * |
1810 | struct ev_loop * |
1098 | ev_loop_new (unsigned int flags) |
1811 | ev_loop_new (unsigned int flags) |
1099 | { |
1812 | { |
1100 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1813 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1101 | |
1814 | |
1102 | memset (loop, 0, sizeof (struct ev_loop)); |
1815 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1103 | |
|
|
1104 | loop_init (EV_A_ flags); |
1816 | loop_init (EV_A_ flags); |
1105 | |
1817 | |
1106 | if (ev_backend (EV_A)) |
1818 | if (ev_backend (EV_A)) |
1107 | return loop; |
1819 | return EV_A; |
1108 | |
1820 | |
1109 | return 0; |
1821 | return 0; |
1110 | } |
1822 | } |
1111 | |
1823 | |
1112 | void |
1824 | void |
… | |
… | |
1117 | } |
1829 | } |
1118 | |
1830 | |
1119 | void |
1831 | void |
1120 | ev_loop_fork (EV_P) |
1832 | ev_loop_fork (EV_P) |
1121 | { |
1833 | { |
1122 | postfork = 1; |
1834 | postfork = 1; /* must be in line with ev_default_fork */ |
1123 | } |
1835 | } |
|
|
1836 | #endif /* multiplicity */ |
1124 | |
1837 | |
|
|
1838 | #if EV_VERIFY |
|
|
1839 | static void noinline |
|
|
1840 | verify_watcher (EV_P_ W w) |
|
|
1841 | { |
|
|
1842 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1843 | |
|
|
1844 | if (w->pending) |
|
|
1845 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1846 | } |
|
|
1847 | |
|
|
1848 | static void noinline |
|
|
1849 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1850 | { |
|
|
1851 | int i; |
|
|
1852 | |
|
|
1853 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1854 | { |
|
|
1855 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1856 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1857 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1858 | |
|
|
1859 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1860 | } |
|
|
1861 | } |
|
|
1862 | |
|
|
1863 | static void noinline |
|
|
1864 | array_verify (EV_P_ W *ws, int cnt) |
|
|
1865 | { |
|
|
1866 | while (cnt--) |
|
|
1867 | { |
|
|
1868 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1869 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1870 | } |
|
|
1871 | } |
|
|
1872 | #endif |
|
|
1873 | |
|
|
1874 | #if EV_FEATURE_API |
|
|
1875 | void |
|
|
1876 | ev_verify (EV_P) |
|
|
1877 | { |
|
|
1878 | #if EV_VERIFY |
|
|
1879 | int i; |
|
|
1880 | WL w; |
|
|
1881 | |
|
|
1882 | assert (activecnt >= -1); |
|
|
1883 | |
|
|
1884 | assert (fdchangemax >= fdchangecnt); |
|
|
1885 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1886 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1887 | |
|
|
1888 | assert (anfdmax >= 0); |
|
|
1889 | for (i = 0; i < anfdmax; ++i) |
|
|
1890 | for (w = anfds [i].head; w; w = w->next) |
|
|
1891 | { |
|
|
1892 | verify_watcher (EV_A_ (W)w); |
|
|
1893 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1894 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1895 | } |
|
|
1896 | |
|
|
1897 | assert (timermax >= timercnt); |
|
|
1898 | verify_heap (EV_A_ timers, timercnt); |
|
|
1899 | |
|
|
1900 | #if EV_PERIODIC_ENABLE |
|
|
1901 | assert (periodicmax >= periodiccnt); |
|
|
1902 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
1903 | #endif |
|
|
1904 | |
|
|
1905 | for (i = NUMPRI; i--; ) |
|
|
1906 | { |
|
|
1907 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
1908 | #if EV_IDLE_ENABLE |
|
|
1909 | assert (idleall >= 0); |
|
|
1910 | assert (idlemax [i] >= idlecnt [i]); |
|
|
1911 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
1912 | #endif |
|
|
1913 | } |
|
|
1914 | |
|
|
1915 | #if EV_FORK_ENABLE |
|
|
1916 | assert (forkmax >= forkcnt); |
|
|
1917 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
1918 | #endif |
|
|
1919 | |
|
|
1920 | #if EV_ASYNC_ENABLE |
|
|
1921 | assert (asyncmax >= asynccnt); |
|
|
1922 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
1923 | #endif |
|
|
1924 | |
|
|
1925 | #if EV_PREPARE_ENABLE |
|
|
1926 | assert (preparemax >= preparecnt); |
|
|
1927 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1928 | #endif |
|
|
1929 | |
|
|
1930 | #if EV_CHECK_ENABLE |
|
|
1931 | assert (checkmax >= checkcnt); |
|
|
1932 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1933 | #endif |
|
|
1934 | |
|
|
1935 | # if 0 |
|
|
1936 | #if EV_CHILD_ENABLE |
|
|
1937 | for (w = (ev_child *)childs [chain & ((EV_PID_HASHSIZE) - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1938 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
1939 | #endif |
|
|
1940 | # endif |
|
|
1941 | #endif |
|
|
1942 | } |
1125 | #endif |
1943 | #endif |
1126 | |
1944 | |
1127 | #if EV_MULTIPLICITY |
1945 | #if EV_MULTIPLICITY |
1128 | struct ev_loop * |
1946 | struct ev_loop * |
1129 | ev_default_loop_init (unsigned int flags) |
1947 | ev_default_loop_init (unsigned int flags) |
1130 | #else |
1948 | #else |
1131 | int |
1949 | int |
1132 | ev_default_loop (unsigned int flags) |
1950 | ev_default_loop (unsigned int flags) |
1133 | #endif |
1951 | #endif |
1134 | { |
1952 | { |
1135 | if (sigpipe [0] == sigpipe [1]) |
|
|
1136 | if (pipe (sigpipe)) |
|
|
1137 | return 0; |
|
|
1138 | |
|
|
1139 | if (!ev_default_loop_ptr) |
1953 | if (!ev_default_loop_ptr) |
1140 | { |
1954 | { |
1141 | #if EV_MULTIPLICITY |
1955 | #if EV_MULTIPLICITY |
1142 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1956 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1143 | #else |
1957 | #else |
1144 | ev_default_loop_ptr = 1; |
1958 | ev_default_loop_ptr = 1; |
1145 | #endif |
1959 | #endif |
1146 | |
1960 | |
1147 | loop_init (EV_A_ flags); |
1961 | loop_init (EV_A_ flags); |
1148 | |
1962 | |
1149 | if (ev_backend (EV_A)) |
1963 | if (ev_backend (EV_A)) |
1150 | { |
1964 | { |
1151 | siginit (EV_A); |
1965 | #if EV_CHILD_ENABLE |
1152 | |
|
|
1153 | #ifndef _WIN32 |
|
|
1154 | ev_signal_init (&childev, childcb, SIGCHLD); |
1966 | ev_signal_init (&childev, childcb, SIGCHLD); |
1155 | ev_set_priority (&childev, EV_MAXPRI); |
1967 | ev_set_priority (&childev, EV_MAXPRI); |
1156 | ev_signal_start (EV_A_ &childev); |
1968 | ev_signal_start (EV_A_ &childev); |
1157 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1969 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1158 | #endif |
1970 | #endif |
… | |
… | |
1166 | |
1978 | |
1167 | void |
1979 | void |
1168 | ev_default_destroy (void) |
1980 | ev_default_destroy (void) |
1169 | { |
1981 | { |
1170 | #if EV_MULTIPLICITY |
1982 | #if EV_MULTIPLICITY |
1171 | struct ev_loop *loop = ev_default_loop_ptr; |
1983 | EV_P = ev_default_loop_ptr; |
1172 | #endif |
1984 | #endif |
1173 | |
1985 | |
1174 | #ifndef _WIN32 |
1986 | ev_default_loop_ptr = 0; |
|
|
1987 | |
|
|
1988 | #if EV_CHILD_ENABLE |
1175 | ev_ref (EV_A); /* child watcher */ |
1989 | ev_ref (EV_A); /* child watcher */ |
1176 | ev_signal_stop (EV_A_ &childev); |
1990 | ev_signal_stop (EV_A_ &childev); |
1177 | #endif |
1991 | #endif |
1178 | |
1992 | |
1179 | ev_ref (EV_A); /* signal watcher */ |
|
|
1180 | ev_io_stop (EV_A_ &sigev); |
|
|
1181 | |
|
|
1182 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1183 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1184 | |
|
|
1185 | loop_destroy (EV_A); |
1993 | loop_destroy (EV_A); |
1186 | } |
1994 | } |
1187 | |
1995 | |
1188 | void |
1996 | void |
1189 | ev_default_fork (void) |
1997 | ev_default_fork (void) |
1190 | { |
1998 | { |
1191 | #if EV_MULTIPLICITY |
1999 | #if EV_MULTIPLICITY |
1192 | struct ev_loop *loop = ev_default_loop_ptr; |
2000 | EV_P = ev_default_loop_ptr; |
1193 | #endif |
2001 | #endif |
1194 | |
2002 | |
1195 | if (backend) |
2003 | postfork = 1; /* must be in line with ev_loop_fork */ |
1196 | postfork = 1; |
|
|
1197 | } |
2004 | } |
1198 | |
2005 | |
1199 | /*****************************************************************************/ |
2006 | /*****************************************************************************/ |
1200 | |
2007 | |
1201 | void |
2008 | void |
1202 | ev_invoke (EV_P_ void *w, int revents) |
2009 | ev_invoke (EV_P_ void *w, int revents) |
1203 | { |
2010 | { |
1204 | EV_CB_INVOKE ((W)w, revents); |
2011 | EV_CB_INVOKE ((W)w, revents); |
1205 | } |
2012 | } |
1206 | |
2013 | |
1207 | void inline_speed |
2014 | unsigned int |
1208 | call_pending (EV_P) |
2015 | ev_pending_count (EV_P) |
|
|
2016 | { |
|
|
2017 | int pri; |
|
|
2018 | unsigned int count = 0; |
|
|
2019 | |
|
|
2020 | for (pri = NUMPRI; pri--; ) |
|
|
2021 | count += pendingcnt [pri]; |
|
|
2022 | |
|
|
2023 | return count; |
|
|
2024 | } |
|
|
2025 | |
|
|
2026 | void noinline |
|
|
2027 | ev_invoke_pending (EV_P) |
1209 | { |
2028 | { |
1210 | int pri; |
2029 | int pri; |
1211 | |
2030 | |
1212 | for (pri = NUMPRI; pri--; ) |
2031 | for (pri = NUMPRI; pri--; ) |
1213 | while (pendingcnt [pri]) |
2032 | while (pendingcnt [pri]) |
1214 | { |
2033 | { |
1215 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2034 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1216 | |
2035 | |
1217 | if (expect_true (p->w)) |
|
|
1218 | { |
|
|
1219 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
2036 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
2037 | /* ^ this is no longer true, as pending_w could be here */ |
1220 | |
2038 | |
1221 | p->w->pending = 0; |
2039 | p->w->pending = 0; |
1222 | EV_CB_INVOKE (p->w, p->events); |
2040 | EV_CB_INVOKE (p->w, p->events); |
1223 | } |
2041 | EV_FREQUENT_CHECK; |
1224 | } |
2042 | } |
1225 | } |
2043 | } |
1226 | |
2044 | |
1227 | void inline_size |
|
|
1228 | timers_reify (EV_P) |
|
|
1229 | { |
|
|
1230 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
|
|
1231 | { |
|
|
1232 | ev_timer *w = (ev_timer *)timers [0]; |
|
|
1233 | |
|
|
1234 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1235 | |
|
|
1236 | /* first reschedule or stop timer */ |
|
|
1237 | if (w->repeat) |
|
|
1238 | { |
|
|
1239 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1240 | |
|
|
1241 | ((WT)w)->at += w->repeat; |
|
|
1242 | if (((WT)w)->at < mn_now) |
|
|
1243 | ((WT)w)->at = mn_now; |
|
|
1244 | |
|
|
1245 | downheap (timers, timercnt, 0); |
|
|
1246 | } |
|
|
1247 | else |
|
|
1248 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1249 | |
|
|
1250 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1251 | } |
|
|
1252 | } |
|
|
1253 | |
|
|
1254 | #if EV_PERIODIC_ENABLE |
|
|
1255 | void inline_size |
|
|
1256 | periodics_reify (EV_P) |
|
|
1257 | { |
|
|
1258 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
|
|
1259 | { |
|
|
1260 | ev_periodic *w = (ev_periodic *)periodics [0]; |
|
|
1261 | |
|
|
1262 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1263 | |
|
|
1264 | /* first reschedule or stop timer */ |
|
|
1265 | if (w->reschedule_cb) |
|
|
1266 | { |
|
|
1267 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
|
|
1268 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1269 | downheap (periodics, periodiccnt, 0); |
|
|
1270 | } |
|
|
1271 | else if (w->interval) |
|
|
1272 | { |
|
|
1273 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1274 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
|
|
1275 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
|
|
1276 | downheap (periodics, periodiccnt, 0); |
|
|
1277 | } |
|
|
1278 | else |
|
|
1279 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1280 | |
|
|
1281 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1282 | } |
|
|
1283 | } |
|
|
1284 | |
|
|
1285 | static void noinline |
|
|
1286 | periodics_reschedule (EV_P) |
|
|
1287 | { |
|
|
1288 | int i; |
|
|
1289 | |
|
|
1290 | /* adjust periodics after time jump */ |
|
|
1291 | for (i = 0; i < periodiccnt; ++i) |
|
|
1292 | { |
|
|
1293 | ev_periodic *w = (ev_periodic *)periodics [i]; |
|
|
1294 | |
|
|
1295 | if (w->reschedule_cb) |
|
|
1296 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1297 | else if (w->interval) |
|
|
1298 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1299 | } |
|
|
1300 | |
|
|
1301 | /* now rebuild the heap */ |
|
|
1302 | for (i = periodiccnt >> 1; i--; ) |
|
|
1303 | downheap (periodics, periodiccnt, i); |
|
|
1304 | } |
|
|
1305 | #endif |
|
|
1306 | |
|
|
1307 | #if EV_IDLE_ENABLE |
2045 | #if EV_IDLE_ENABLE |
1308 | void inline_size |
2046 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
2047 | /* only when higher priorities are idle" logic */ |
|
|
2048 | inline_size void |
1309 | idle_reify (EV_P) |
2049 | idle_reify (EV_P) |
1310 | { |
2050 | { |
1311 | if (expect_false (idleall)) |
2051 | if (expect_false (idleall)) |
1312 | { |
2052 | { |
1313 | int pri; |
2053 | int pri; |
… | |
… | |
1325 | } |
2065 | } |
1326 | } |
2066 | } |
1327 | } |
2067 | } |
1328 | #endif |
2068 | #endif |
1329 | |
2069 | |
1330 | void inline_speed |
2070 | /* make timers pending */ |
|
|
2071 | inline_size void |
|
|
2072 | timers_reify (EV_P) |
|
|
2073 | { |
|
|
2074 | EV_FREQUENT_CHECK; |
|
|
2075 | |
|
|
2076 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
|
|
2077 | { |
|
|
2078 | do |
|
|
2079 | { |
|
|
2080 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
2081 | |
|
|
2082 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
2083 | |
|
|
2084 | /* first reschedule or stop timer */ |
|
|
2085 | if (w->repeat) |
|
|
2086 | { |
|
|
2087 | ev_at (w) += w->repeat; |
|
|
2088 | if (ev_at (w) < mn_now) |
|
|
2089 | ev_at (w) = mn_now; |
|
|
2090 | |
|
|
2091 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
2092 | |
|
|
2093 | ANHE_at_cache (timers [HEAP0]); |
|
|
2094 | downheap (timers, timercnt, HEAP0); |
|
|
2095 | } |
|
|
2096 | else |
|
|
2097 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2098 | |
|
|
2099 | EV_FREQUENT_CHECK; |
|
|
2100 | feed_reverse (EV_A_ (W)w); |
|
|
2101 | } |
|
|
2102 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
|
|
2103 | |
|
|
2104 | feed_reverse_done (EV_A_ EV_TIMER); |
|
|
2105 | } |
|
|
2106 | } |
|
|
2107 | |
|
|
2108 | #if EV_PERIODIC_ENABLE |
|
|
2109 | /* make periodics pending */ |
|
|
2110 | inline_size void |
|
|
2111 | periodics_reify (EV_P) |
|
|
2112 | { |
|
|
2113 | EV_FREQUENT_CHECK; |
|
|
2114 | |
|
|
2115 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
|
|
2116 | { |
|
|
2117 | int feed_count = 0; |
|
|
2118 | |
|
|
2119 | do |
|
|
2120 | { |
|
|
2121 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
2122 | |
|
|
2123 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
2124 | |
|
|
2125 | /* first reschedule or stop timer */ |
|
|
2126 | if (w->reschedule_cb) |
|
|
2127 | { |
|
|
2128 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2129 | |
|
|
2130 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
2131 | |
|
|
2132 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2133 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2134 | } |
|
|
2135 | else if (w->interval) |
|
|
2136 | { |
|
|
2137 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2138 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2139 | /* this might happen because of floating point inexactness */ |
|
|
2140 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2141 | { |
|
|
2142 | ev_at (w) += w->interval; |
|
|
2143 | |
|
|
2144 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2145 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2146 | /* has effectively asked to get triggered more often than possible */ |
|
|
2147 | if (ev_at (w) < ev_rt_now) |
|
|
2148 | ev_at (w) = ev_rt_now; |
|
|
2149 | } |
|
|
2150 | |
|
|
2151 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2152 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2153 | } |
|
|
2154 | else |
|
|
2155 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2156 | |
|
|
2157 | EV_FREQUENT_CHECK; |
|
|
2158 | feed_reverse (EV_A_ (W)w); |
|
|
2159 | } |
|
|
2160 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
|
|
2161 | |
|
|
2162 | feed_reverse_done (EV_A_ EV_PERIODIC); |
|
|
2163 | } |
|
|
2164 | } |
|
|
2165 | |
|
|
2166 | /* simply recalculate all periodics */ |
|
|
2167 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
|
|
2168 | static void noinline |
|
|
2169 | periodics_reschedule (EV_P) |
|
|
2170 | { |
|
|
2171 | int i; |
|
|
2172 | |
|
|
2173 | /* adjust periodics after time jump */ |
|
|
2174 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
|
|
2175 | { |
|
|
2176 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
|
|
2177 | |
|
|
2178 | if (w->reschedule_cb) |
|
|
2179 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2180 | else if (w->interval) |
|
|
2181 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2182 | |
|
|
2183 | ANHE_at_cache (periodics [i]); |
|
|
2184 | } |
|
|
2185 | |
|
|
2186 | reheap (periodics, periodiccnt); |
|
|
2187 | } |
|
|
2188 | #endif |
|
|
2189 | |
|
|
2190 | /* adjust all timers by a given offset */ |
|
|
2191 | static void noinline |
|
|
2192 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
2193 | { |
|
|
2194 | int i; |
|
|
2195 | |
|
|
2196 | for (i = 0; i < timercnt; ++i) |
|
|
2197 | { |
|
|
2198 | ANHE *he = timers + i + HEAP0; |
|
|
2199 | ANHE_w (*he)->at += adjust; |
|
|
2200 | ANHE_at_cache (*he); |
|
|
2201 | } |
|
|
2202 | } |
|
|
2203 | |
|
|
2204 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2205 | /* also detect if there was a timejump, and act accordingly */ |
|
|
2206 | inline_speed void |
1331 | time_update (EV_P_ ev_tstamp max_block) |
2207 | time_update (EV_P_ ev_tstamp max_block) |
1332 | { |
2208 | { |
1333 | int i; |
|
|
1334 | |
|
|
1335 | #if EV_USE_MONOTONIC |
2209 | #if EV_USE_MONOTONIC |
1336 | if (expect_true (have_monotonic)) |
2210 | if (expect_true (have_monotonic)) |
1337 | { |
2211 | { |
|
|
2212 | int i; |
1338 | ev_tstamp odiff = rtmn_diff; |
2213 | ev_tstamp odiff = rtmn_diff; |
1339 | |
2214 | |
1340 | mn_now = get_clock (); |
2215 | mn_now = get_clock (); |
1341 | |
2216 | |
1342 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2217 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1360 | */ |
2235 | */ |
1361 | for (i = 4; --i; ) |
2236 | for (i = 4; --i; ) |
1362 | { |
2237 | { |
1363 | rtmn_diff = ev_rt_now - mn_now; |
2238 | rtmn_diff = ev_rt_now - mn_now; |
1364 | |
2239 | |
1365 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
2240 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
1366 | return; /* all is well */ |
2241 | return; /* all is well */ |
1367 | |
2242 | |
1368 | ev_rt_now = ev_time (); |
2243 | ev_rt_now = ev_time (); |
1369 | mn_now = get_clock (); |
2244 | mn_now = get_clock (); |
1370 | now_floor = mn_now; |
2245 | now_floor = mn_now; |
1371 | } |
2246 | } |
1372 | |
2247 | |
|
|
2248 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2249 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1373 | # if EV_PERIODIC_ENABLE |
2250 | # if EV_PERIODIC_ENABLE |
1374 | periodics_reschedule (EV_A); |
2251 | periodics_reschedule (EV_A); |
1375 | # endif |
2252 | # endif |
1376 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1377 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1378 | } |
2253 | } |
1379 | else |
2254 | else |
1380 | #endif |
2255 | #endif |
1381 | { |
2256 | { |
1382 | ev_rt_now = ev_time (); |
2257 | ev_rt_now = ev_time (); |
1383 | |
2258 | |
1384 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2259 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1385 | { |
2260 | { |
|
|
2261 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2262 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1386 | #if EV_PERIODIC_ENABLE |
2263 | #if EV_PERIODIC_ENABLE |
1387 | periodics_reschedule (EV_A); |
2264 | periodics_reschedule (EV_A); |
1388 | #endif |
2265 | #endif |
1389 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1390 | for (i = 0; i < timercnt; ++i) |
|
|
1391 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
|
|
1392 | } |
2266 | } |
1393 | |
2267 | |
1394 | mn_now = ev_rt_now; |
2268 | mn_now = ev_rt_now; |
1395 | } |
2269 | } |
1396 | } |
2270 | } |
1397 | |
2271 | |
1398 | void |
2272 | void |
1399 | ev_ref (EV_P) |
|
|
1400 | { |
|
|
1401 | ++activecnt; |
|
|
1402 | } |
|
|
1403 | |
|
|
1404 | void |
|
|
1405 | ev_unref (EV_P) |
|
|
1406 | { |
|
|
1407 | --activecnt; |
|
|
1408 | } |
|
|
1409 | |
|
|
1410 | static int loop_done; |
|
|
1411 | |
|
|
1412 | void |
|
|
1413 | ev_loop (EV_P_ int flags) |
2273 | ev_loop (EV_P_ int flags) |
1414 | { |
2274 | { |
1415 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
2275 | #if EV_FEATURE_API |
1416 | ? EVUNLOOP_ONE |
2276 | ++loop_depth; |
1417 | : EVUNLOOP_CANCEL; |
2277 | #endif |
1418 | |
2278 | |
|
|
2279 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
|
|
2280 | |
|
|
2281 | loop_done = EVUNLOOP_CANCEL; |
|
|
2282 | |
1419 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2283 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1420 | |
2284 | |
1421 | do |
2285 | do |
1422 | { |
2286 | { |
|
|
2287 | #if EV_VERIFY >= 2 |
|
|
2288 | ev_verify (EV_A); |
|
|
2289 | #endif |
|
|
2290 | |
1423 | #ifndef _WIN32 |
2291 | #ifndef _WIN32 |
1424 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2292 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1425 | if (expect_false (getpid () != curpid)) |
2293 | if (expect_false (getpid () != curpid)) |
1426 | { |
2294 | { |
1427 | curpid = getpid (); |
2295 | curpid = getpid (); |
… | |
… | |
1433 | /* we might have forked, so queue fork handlers */ |
2301 | /* we might have forked, so queue fork handlers */ |
1434 | if (expect_false (postfork)) |
2302 | if (expect_false (postfork)) |
1435 | if (forkcnt) |
2303 | if (forkcnt) |
1436 | { |
2304 | { |
1437 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2305 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1438 | call_pending (EV_A); |
2306 | EV_INVOKE_PENDING; |
1439 | } |
2307 | } |
1440 | #endif |
2308 | #endif |
1441 | |
2309 | |
|
|
2310 | #if EV_PREPARE_ENABLE |
1442 | /* queue prepare watchers (and execute them) */ |
2311 | /* queue prepare watchers (and execute them) */ |
1443 | if (expect_false (preparecnt)) |
2312 | if (expect_false (preparecnt)) |
1444 | { |
2313 | { |
1445 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2314 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1446 | call_pending (EV_A); |
2315 | EV_INVOKE_PENDING; |
1447 | } |
2316 | } |
|
|
2317 | #endif |
1448 | |
2318 | |
1449 | if (expect_false (!activecnt)) |
2319 | if (expect_false (loop_done)) |
1450 | break; |
2320 | break; |
1451 | |
2321 | |
1452 | /* we might have forked, so reify kernel state if necessary */ |
2322 | /* we might have forked, so reify kernel state if necessary */ |
1453 | if (expect_false (postfork)) |
2323 | if (expect_false (postfork)) |
1454 | loop_fork (EV_A); |
2324 | loop_fork (EV_A); |
… | |
… | |
1456 | /* update fd-related kernel structures */ |
2326 | /* update fd-related kernel structures */ |
1457 | fd_reify (EV_A); |
2327 | fd_reify (EV_A); |
1458 | |
2328 | |
1459 | /* calculate blocking time */ |
2329 | /* calculate blocking time */ |
1460 | { |
2330 | { |
1461 | ev_tstamp block; |
2331 | ev_tstamp waittime = 0.; |
|
|
2332 | ev_tstamp sleeptime = 0.; |
1462 | |
2333 | |
1463 | if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt)) |
2334 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1464 | block = 0.; /* do not block at all */ |
|
|
1465 | else |
|
|
1466 | { |
2335 | { |
|
|
2336 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2337 | ev_tstamp prev_mn_now = mn_now; |
|
|
2338 | |
1467 | /* update time to cancel out callback processing overhead */ |
2339 | /* update time to cancel out callback processing overhead */ |
1468 | time_update (EV_A_ 1e100); |
2340 | time_update (EV_A_ 1e100); |
1469 | |
2341 | |
1470 | block = MAX_BLOCKTIME; |
2342 | waittime = MAX_BLOCKTIME; |
1471 | |
2343 | |
1472 | if (timercnt) |
2344 | if (timercnt) |
1473 | { |
2345 | { |
1474 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
2346 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1475 | if (block > to) block = to; |
2347 | if (waittime > to) waittime = to; |
1476 | } |
2348 | } |
1477 | |
2349 | |
1478 | #if EV_PERIODIC_ENABLE |
2350 | #if EV_PERIODIC_ENABLE |
1479 | if (periodiccnt) |
2351 | if (periodiccnt) |
1480 | { |
2352 | { |
1481 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
2353 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1482 | if (block > to) block = to; |
2354 | if (waittime > to) waittime = to; |
1483 | } |
2355 | } |
1484 | #endif |
2356 | #endif |
1485 | |
2357 | |
|
|
2358 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
|
|
2359 | if (expect_false (waittime < timeout_blocktime)) |
|
|
2360 | waittime = timeout_blocktime; |
|
|
2361 | |
|
|
2362 | /* extra check because io_blocktime is commonly 0 */ |
1486 | if (expect_false (block < 0.)) block = 0.; |
2363 | if (expect_false (io_blocktime)) |
|
|
2364 | { |
|
|
2365 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2366 | |
|
|
2367 | if (sleeptime > waittime - backend_fudge) |
|
|
2368 | sleeptime = waittime - backend_fudge; |
|
|
2369 | |
|
|
2370 | if (expect_true (sleeptime > 0.)) |
|
|
2371 | { |
|
|
2372 | ev_sleep (sleeptime); |
|
|
2373 | waittime -= sleeptime; |
|
|
2374 | } |
|
|
2375 | } |
1487 | } |
2376 | } |
1488 | |
2377 | |
|
|
2378 | #if EV_FEATURE_API |
1489 | ++loop_count; |
2379 | ++loop_count; |
|
|
2380 | #endif |
|
|
2381 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
1490 | backend_poll (EV_A_ block); |
2382 | backend_poll (EV_A_ waittime); |
|
|
2383 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
1491 | |
2384 | |
1492 | /* update ev_rt_now, do magic */ |
2385 | /* update ev_rt_now, do magic */ |
1493 | time_update (EV_A_ block); |
2386 | time_update (EV_A_ waittime + sleeptime); |
1494 | } |
2387 | } |
1495 | |
2388 | |
1496 | /* queue pending timers and reschedule them */ |
2389 | /* queue pending timers and reschedule them */ |
1497 | timers_reify (EV_A); /* relative timers called last */ |
2390 | timers_reify (EV_A); /* relative timers called last */ |
1498 | #if EV_PERIODIC_ENABLE |
2391 | #if EV_PERIODIC_ENABLE |
… | |
… | |
1502 | #if EV_IDLE_ENABLE |
2395 | #if EV_IDLE_ENABLE |
1503 | /* queue idle watchers unless other events are pending */ |
2396 | /* queue idle watchers unless other events are pending */ |
1504 | idle_reify (EV_A); |
2397 | idle_reify (EV_A); |
1505 | #endif |
2398 | #endif |
1506 | |
2399 | |
|
|
2400 | #if EV_CHECK_ENABLE |
1507 | /* queue check watchers, to be executed first */ |
2401 | /* queue check watchers, to be executed first */ |
1508 | if (expect_false (checkcnt)) |
2402 | if (expect_false (checkcnt)) |
1509 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2403 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
2404 | #endif |
1510 | |
2405 | |
1511 | call_pending (EV_A); |
2406 | EV_INVOKE_PENDING; |
1512 | |
|
|
1513 | } |
2407 | } |
1514 | while (expect_true (activecnt && !loop_done)); |
2408 | while (expect_true ( |
|
|
2409 | activecnt |
|
|
2410 | && !loop_done |
|
|
2411 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
2412 | )); |
1515 | |
2413 | |
1516 | if (loop_done == EVUNLOOP_ONE) |
2414 | if (loop_done == EVUNLOOP_ONE) |
1517 | loop_done = EVUNLOOP_CANCEL; |
2415 | loop_done = EVUNLOOP_CANCEL; |
|
|
2416 | |
|
|
2417 | #if EV_FEATURE_API |
|
|
2418 | --loop_depth; |
|
|
2419 | #endif |
1518 | } |
2420 | } |
1519 | |
2421 | |
1520 | void |
2422 | void |
1521 | ev_unloop (EV_P_ int how) |
2423 | ev_unloop (EV_P_ int how) |
1522 | { |
2424 | { |
1523 | loop_done = how; |
2425 | loop_done = how; |
1524 | } |
2426 | } |
1525 | |
2427 | |
|
|
2428 | void |
|
|
2429 | ev_ref (EV_P) |
|
|
2430 | { |
|
|
2431 | ++activecnt; |
|
|
2432 | } |
|
|
2433 | |
|
|
2434 | void |
|
|
2435 | ev_unref (EV_P) |
|
|
2436 | { |
|
|
2437 | --activecnt; |
|
|
2438 | } |
|
|
2439 | |
|
|
2440 | void |
|
|
2441 | ev_now_update (EV_P) |
|
|
2442 | { |
|
|
2443 | time_update (EV_A_ 1e100); |
|
|
2444 | } |
|
|
2445 | |
|
|
2446 | void |
|
|
2447 | ev_suspend (EV_P) |
|
|
2448 | { |
|
|
2449 | ev_now_update (EV_A); |
|
|
2450 | } |
|
|
2451 | |
|
|
2452 | void |
|
|
2453 | ev_resume (EV_P) |
|
|
2454 | { |
|
|
2455 | ev_tstamp mn_prev = mn_now; |
|
|
2456 | |
|
|
2457 | ev_now_update (EV_A); |
|
|
2458 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2459 | #if EV_PERIODIC_ENABLE |
|
|
2460 | /* TODO: really do this? */ |
|
|
2461 | periodics_reschedule (EV_A); |
|
|
2462 | #endif |
|
|
2463 | } |
|
|
2464 | |
1526 | /*****************************************************************************/ |
2465 | /*****************************************************************************/ |
|
|
2466 | /* singly-linked list management, used when the expected list length is short */ |
1527 | |
2467 | |
1528 | void inline_size |
2468 | inline_size void |
1529 | wlist_add (WL *head, WL elem) |
2469 | wlist_add (WL *head, WL elem) |
1530 | { |
2470 | { |
1531 | elem->next = *head; |
2471 | elem->next = *head; |
1532 | *head = elem; |
2472 | *head = elem; |
1533 | } |
2473 | } |
1534 | |
2474 | |
1535 | void inline_size |
2475 | inline_size void |
1536 | wlist_del (WL *head, WL elem) |
2476 | wlist_del (WL *head, WL elem) |
1537 | { |
2477 | { |
1538 | while (*head) |
2478 | while (*head) |
1539 | { |
2479 | { |
1540 | if (*head == elem) |
2480 | if (expect_true (*head == elem)) |
1541 | { |
2481 | { |
1542 | *head = elem->next; |
2482 | *head = elem->next; |
1543 | return; |
2483 | break; |
1544 | } |
2484 | } |
1545 | |
2485 | |
1546 | head = &(*head)->next; |
2486 | head = &(*head)->next; |
1547 | } |
2487 | } |
1548 | } |
2488 | } |
1549 | |
2489 | |
1550 | void inline_speed |
2490 | /* internal, faster, version of ev_clear_pending */ |
|
|
2491 | inline_speed void |
1551 | clear_pending (EV_P_ W w) |
2492 | clear_pending (EV_P_ W w) |
1552 | { |
2493 | { |
1553 | if (w->pending) |
2494 | if (w->pending) |
1554 | { |
2495 | { |
1555 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2496 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
1556 | w->pending = 0; |
2497 | w->pending = 0; |
1557 | } |
2498 | } |
1558 | } |
2499 | } |
1559 | |
2500 | |
1560 | int |
2501 | int |
… | |
… | |
1564 | int pending = w_->pending; |
2505 | int pending = w_->pending; |
1565 | |
2506 | |
1566 | if (expect_true (pending)) |
2507 | if (expect_true (pending)) |
1567 | { |
2508 | { |
1568 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2509 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2510 | p->w = (W)&pending_w; |
1569 | w_->pending = 0; |
2511 | w_->pending = 0; |
1570 | p->w = 0; |
|
|
1571 | return p->events; |
2512 | return p->events; |
1572 | } |
2513 | } |
1573 | else |
2514 | else |
1574 | return 0; |
2515 | return 0; |
1575 | } |
2516 | } |
1576 | |
2517 | |
1577 | void inline_size |
2518 | inline_size void |
1578 | pri_adjust (EV_P_ W w) |
2519 | pri_adjust (EV_P_ W w) |
1579 | { |
2520 | { |
1580 | int pri = w->priority; |
2521 | int pri = ev_priority (w); |
1581 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2522 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
1582 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2523 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
1583 | w->priority = pri; |
2524 | ev_set_priority (w, pri); |
1584 | } |
2525 | } |
1585 | |
2526 | |
1586 | void inline_speed |
2527 | inline_speed void |
1587 | ev_start (EV_P_ W w, int active) |
2528 | ev_start (EV_P_ W w, int active) |
1588 | { |
2529 | { |
1589 | pri_adjust (EV_A_ w); |
2530 | pri_adjust (EV_A_ w); |
1590 | w->active = active; |
2531 | w->active = active; |
1591 | ev_ref (EV_A); |
2532 | ev_ref (EV_A); |
1592 | } |
2533 | } |
1593 | |
2534 | |
1594 | void inline_size |
2535 | inline_size void |
1595 | ev_stop (EV_P_ W w) |
2536 | ev_stop (EV_P_ W w) |
1596 | { |
2537 | { |
1597 | ev_unref (EV_A); |
2538 | ev_unref (EV_A); |
1598 | w->active = 0; |
2539 | w->active = 0; |
1599 | } |
2540 | } |
… | |
… | |
1606 | int fd = w->fd; |
2547 | int fd = w->fd; |
1607 | |
2548 | |
1608 | if (expect_false (ev_is_active (w))) |
2549 | if (expect_false (ev_is_active (w))) |
1609 | return; |
2550 | return; |
1610 | |
2551 | |
1611 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2552 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2553 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
|
|
2554 | |
|
|
2555 | EV_FREQUENT_CHECK; |
1612 | |
2556 | |
1613 | ev_start (EV_A_ (W)w, 1); |
2557 | ev_start (EV_A_ (W)w, 1); |
1614 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2558 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
1615 | wlist_add (&anfds[fd].head, (WL)w); |
2559 | wlist_add (&anfds[fd].head, (WL)w); |
1616 | |
2560 | |
1617 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
2561 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
1618 | w->events &= ~EV_IOFDSET; |
2562 | w->events &= ~EV__IOFDSET; |
|
|
2563 | |
|
|
2564 | EV_FREQUENT_CHECK; |
1619 | } |
2565 | } |
1620 | |
2566 | |
1621 | void noinline |
2567 | void noinline |
1622 | ev_io_stop (EV_P_ ev_io *w) |
2568 | ev_io_stop (EV_P_ ev_io *w) |
1623 | { |
2569 | { |
1624 | clear_pending (EV_A_ (W)w); |
2570 | clear_pending (EV_A_ (W)w); |
1625 | if (expect_false (!ev_is_active (w))) |
2571 | if (expect_false (!ev_is_active (w))) |
1626 | return; |
2572 | return; |
1627 | |
2573 | |
1628 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2574 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
2575 | |
|
|
2576 | EV_FREQUENT_CHECK; |
1629 | |
2577 | |
1630 | wlist_del (&anfds[w->fd].head, (WL)w); |
2578 | wlist_del (&anfds[w->fd].head, (WL)w); |
1631 | ev_stop (EV_A_ (W)w); |
2579 | ev_stop (EV_A_ (W)w); |
1632 | |
2580 | |
1633 | fd_change (EV_A_ w->fd, 1); |
2581 | fd_change (EV_A_ w->fd, 1); |
|
|
2582 | |
|
|
2583 | EV_FREQUENT_CHECK; |
1634 | } |
2584 | } |
1635 | |
2585 | |
1636 | void noinline |
2586 | void noinline |
1637 | ev_timer_start (EV_P_ ev_timer *w) |
2587 | ev_timer_start (EV_P_ ev_timer *w) |
1638 | { |
2588 | { |
1639 | if (expect_false (ev_is_active (w))) |
2589 | if (expect_false (ev_is_active (w))) |
1640 | return; |
2590 | return; |
1641 | |
2591 | |
1642 | ((WT)w)->at += mn_now; |
2592 | ev_at (w) += mn_now; |
1643 | |
2593 | |
1644 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2594 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1645 | |
2595 | |
|
|
2596 | EV_FREQUENT_CHECK; |
|
|
2597 | |
|
|
2598 | ++timercnt; |
1646 | ev_start (EV_A_ (W)w, ++timercnt); |
2599 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1647 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
2600 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1648 | timers [timercnt - 1] = (WT)w; |
2601 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1649 | upheap (timers, timercnt - 1); |
2602 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
2603 | upheap (timers, ev_active (w)); |
1650 | |
2604 | |
|
|
2605 | EV_FREQUENT_CHECK; |
|
|
2606 | |
1651 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
2607 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1652 | } |
2608 | } |
1653 | |
2609 | |
1654 | void noinline |
2610 | void noinline |
1655 | ev_timer_stop (EV_P_ ev_timer *w) |
2611 | ev_timer_stop (EV_P_ ev_timer *w) |
1656 | { |
2612 | { |
1657 | clear_pending (EV_A_ (W)w); |
2613 | clear_pending (EV_A_ (W)w); |
1658 | if (expect_false (!ev_is_active (w))) |
2614 | if (expect_false (!ev_is_active (w))) |
1659 | return; |
2615 | return; |
1660 | |
2616 | |
1661 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
2617 | EV_FREQUENT_CHECK; |
1662 | |
2618 | |
1663 | { |
2619 | { |
1664 | int active = ((W)w)->active; |
2620 | int active = ev_active (w); |
1665 | |
2621 | |
|
|
2622 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
2623 | |
|
|
2624 | --timercnt; |
|
|
2625 | |
1666 | if (expect_true (--active < --timercnt)) |
2626 | if (expect_true (active < timercnt + HEAP0)) |
1667 | { |
2627 | { |
1668 | timers [active] = timers [timercnt]; |
2628 | timers [active] = timers [timercnt + HEAP0]; |
1669 | adjustheap (timers, timercnt, active); |
2629 | adjustheap (timers, timercnt, active); |
1670 | } |
2630 | } |
1671 | } |
2631 | } |
1672 | |
2632 | |
1673 | ((WT)w)->at -= mn_now; |
2633 | ev_at (w) -= mn_now; |
1674 | |
2634 | |
1675 | ev_stop (EV_A_ (W)w); |
2635 | ev_stop (EV_A_ (W)w); |
|
|
2636 | |
|
|
2637 | EV_FREQUENT_CHECK; |
1676 | } |
2638 | } |
1677 | |
2639 | |
1678 | void noinline |
2640 | void noinline |
1679 | ev_timer_again (EV_P_ ev_timer *w) |
2641 | ev_timer_again (EV_P_ ev_timer *w) |
1680 | { |
2642 | { |
|
|
2643 | EV_FREQUENT_CHECK; |
|
|
2644 | |
1681 | if (ev_is_active (w)) |
2645 | if (ev_is_active (w)) |
1682 | { |
2646 | { |
1683 | if (w->repeat) |
2647 | if (w->repeat) |
1684 | { |
2648 | { |
1685 | ((WT)w)->at = mn_now + w->repeat; |
2649 | ev_at (w) = mn_now + w->repeat; |
|
|
2650 | ANHE_at_cache (timers [ev_active (w)]); |
1686 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
2651 | adjustheap (timers, timercnt, ev_active (w)); |
1687 | } |
2652 | } |
1688 | else |
2653 | else |
1689 | ev_timer_stop (EV_A_ w); |
2654 | ev_timer_stop (EV_A_ w); |
1690 | } |
2655 | } |
1691 | else if (w->repeat) |
2656 | else if (w->repeat) |
1692 | { |
2657 | { |
1693 | w->at = w->repeat; |
2658 | ev_at (w) = w->repeat; |
1694 | ev_timer_start (EV_A_ w); |
2659 | ev_timer_start (EV_A_ w); |
1695 | } |
2660 | } |
|
|
2661 | |
|
|
2662 | EV_FREQUENT_CHECK; |
|
|
2663 | } |
|
|
2664 | |
|
|
2665 | ev_tstamp |
|
|
2666 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2667 | { |
|
|
2668 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
1696 | } |
2669 | } |
1697 | |
2670 | |
1698 | #if EV_PERIODIC_ENABLE |
2671 | #if EV_PERIODIC_ENABLE |
1699 | void noinline |
2672 | void noinline |
1700 | ev_periodic_start (EV_P_ ev_periodic *w) |
2673 | ev_periodic_start (EV_P_ ev_periodic *w) |
1701 | { |
2674 | { |
1702 | if (expect_false (ev_is_active (w))) |
2675 | if (expect_false (ev_is_active (w))) |
1703 | return; |
2676 | return; |
1704 | |
2677 | |
1705 | if (w->reschedule_cb) |
2678 | if (w->reschedule_cb) |
1706 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2679 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1707 | else if (w->interval) |
2680 | else if (w->interval) |
1708 | { |
2681 | { |
1709 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2682 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1710 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2683 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1711 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2684 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1712 | } |
2685 | } |
1713 | else |
2686 | else |
1714 | ((WT)w)->at = w->offset; |
2687 | ev_at (w) = w->offset; |
1715 | |
2688 | |
|
|
2689 | EV_FREQUENT_CHECK; |
|
|
2690 | |
|
|
2691 | ++periodiccnt; |
1716 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2692 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
1717 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
2693 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1718 | periodics [periodiccnt - 1] = (WT)w; |
2694 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1719 | upheap (periodics, periodiccnt - 1); |
2695 | ANHE_at_cache (periodics [ev_active (w)]); |
|
|
2696 | upheap (periodics, ev_active (w)); |
1720 | |
2697 | |
|
|
2698 | EV_FREQUENT_CHECK; |
|
|
2699 | |
1721 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
2700 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1722 | } |
2701 | } |
1723 | |
2702 | |
1724 | void noinline |
2703 | void noinline |
1725 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2704 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1726 | { |
2705 | { |
1727 | clear_pending (EV_A_ (W)w); |
2706 | clear_pending (EV_A_ (W)w); |
1728 | if (expect_false (!ev_is_active (w))) |
2707 | if (expect_false (!ev_is_active (w))) |
1729 | return; |
2708 | return; |
1730 | |
2709 | |
1731 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
2710 | EV_FREQUENT_CHECK; |
1732 | |
2711 | |
1733 | { |
2712 | { |
1734 | int active = ((W)w)->active; |
2713 | int active = ev_active (w); |
1735 | |
2714 | |
|
|
2715 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
|
|
2716 | |
|
|
2717 | --periodiccnt; |
|
|
2718 | |
1736 | if (expect_true (--active < --periodiccnt)) |
2719 | if (expect_true (active < periodiccnt + HEAP0)) |
1737 | { |
2720 | { |
1738 | periodics [active] = periodics [periodiccnt]; |
2721 | periodics [active] = periodics [periodiccnt + HEAP0]; |
1739 | adjustheap (periodics, periodiccnt, active); |
2722 | adjustheap (periodics, periodiccnt, active); |
1740 | } |
2723 | } |
1741 | } |
2724 | } |
1742 | |
2725 | |
1743 | ev_stop (EV_A_ (W)w); |
2726 | ev_stop (EV_A_ (W)w); |
|
|
2727 | |
|
|
2728 | EV_FREQUENT_CHECK; |
1744 | } |
2729 | } |
1745 | |
2730 | |
1746 | void noinline |
2731 | void noinline |
1747 | ev_periodic_again (EV_P_ ev_periodic *w) |
2732 | ev_periodic_again (EV_P_ ev_periodic *w) |
1748 | { |
2733 | { |
… | |
… | |
1754 | |
2739 | |
1755 | #ifndef SA_RESTART |
2740 | #ifndef SA_RESTART |
1756 | # define SA_RESTART 0 |
2741 | # define SA_RESTART 0 |
1757 | #endif |
2742 | #endif |
1758 | |
2743 | |
|
|
2744 | #if EV_SIGNAL_ENABLE |
|
|
2745 | |
1759 | void noinline |
2746 | void noinline |
1760 | ev_signal_start (EV_P_ ev_signal *w) |
2747 | ev_signal_start (EV_P_ ev_signal *w) |
1761 | { |
2748 | { |
1762 | #if EV_MULTIPLICITY |
|
|
1763 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1764 | #endif |
|
|
1765 | if (expect_false (ev_is_active (w))) |
2749 | if (expect_false (ev_is_active (w))) |
1766 | return; |
2750 | return; |
1767 | |
2751 | |
1768 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2752 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
1769 | |
2753 | |
|
|
2754 | #if EV_MULTIPLICITY |
|
|
2755 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2756 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
|
|
2757 | |
|
|
2758 | signals [w->signum - 1].loop = EV_A; |
|
|
2759 | #endif |
|
|
2760 | |
|
|
2761 | EV_FREQUENT_CHECK; |
|
|
2762 | |
|
|
2763 | #if EV_USE_SIGNALFD |
|
|
2764 | if (sigfd == -2) |
1770 | { |
2765 | { |
1771 | #ifndef _WIN32 |
2766 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
1772 | sigset_t full, prev; |
2767 | if (sigfd < 0 && errno == EINVAL) |
1773 | sigfillset (&full); |
2768 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
1774 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
1775 | #endif |
|
|
1776 | |
2769 | |
1777 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
2770 | if (sigfd >= 0) |
|
|
2771 | { |
|
|
2772 | fd_intern (sigfd); /* doing it twice will not hurt */ |
1778 | |
2773 | |
1779 | #ifndef _WIN32 |
2774 | sigemptyset (&sigfd_set); |
1780 | sigprocmask (SIG_SETMASK, &prev, 0); |
2775 | |
1781 | #endif |
2776 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2777 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2778 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2779 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2780 | } |
1782 | } |
2781 | } |
|
|
2782 | |
|
|
2783 | if (sigfd >= 0) |
|
|
2784 | { |
|
|
2785 | /* TODO: check .head */ |
|
|
2786 | sigaddset (&sigfd_set, w->signum); |
|
|
2787 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2788 | |
|
|
2789 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2790 | } |
|
|
2791 | #endif |
1783 | |
2792 | |
1784 | ev_start (EV_A_ (W)w, 1); |
2793 | ev_start (EV_A_ (W)w, 1); |
1785 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2794 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1786 | |
2795 | |
1787 | if (!((WL)w)->next) |
2796 | if (!((WL)w)->next) |
|
|
2797 | # if EV_USE_SIGNALFD |
|
|
2798 | if (sigfd < 0) /*TODO*/ |
|
|
2799 | # endif |
1788 | { |
2800 | { |
1789 | #if _WIN32 |
2801 | # ifdef _WIN32 |
|
|
2802 | evpipe_init (EV_A); |
|
|
2803 | |
1790 | signal (w->signum, sighandler); |
2804 | signal (w->signum, ev_sighandler); |
1791 | #else |
2805 | # else |
1792 | struct sigaction sa; |
2806 | struct sigaction sa; |
|
|
2807 | |
|
|
2808 | evpipe_init (EV_A); |
|
|
2809 | |
1793 | sa.sa_handler = sighandler; |
2810 | sa.sa_handler = ev_sighandler; |
1794 | sigfillset (&sa.sa_mask); |
2811 | sigfillset (&sa.sa_mask); |
1795 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2812 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1796 | sigaction (w->signum, &sa, 0); |
2813 | sigaction (w->signum, &sa, 0); |
|
|
2814 | |
|
|
2815 | sigemptyset (&sa.sa_mask); |
|
|
2816 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2817 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
1797 | #endif |
2818 | #endif |
1798 | } |
2819 | } |
|
|
2820 | |
|
|
2821 | EV_FREQUENT_CHECK; |
1799 | } |
2822 | } |
1800 | |
2823 | |
1801 | void noinline |
2824 | void noinline |
1802 | ev_signal_stop (EV_P_ ev_signal *w) |
2825 | ev_signal_stop (EV_P_ ev_signal *w) |
1803 | { |
2826 | { |
1804 | clear_pending (EV_A_ (W)w); |
2827 | clear_pending (EV_A_ (W)w); |
1805 | if (expect_false (!ev_is_active (w))) |
2828 | if (expect_false (!ev_is_active (w))) |
1806 | return; |
2829 | return; |
1807 | |
2830 | |
|
|
2831 | EV_FREQUENT_CHECK; |
|
|
2832 | |
1808 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2833 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1809 | ev_stop (EV_A_ (W)w); |
2834 | ev_stop (EV_A_ (W)w); |
1810 | |
2835 | |
1811 | if (!signals [w->signum - 1].head) |
2836 | if (!signals [w->signum - 1].head) |
|
|
2837 | { |
|
|
2838 | #if EV_MULTIPLICITY |
|
|
2839 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2840 | #endif |
|
|
2841 | #if EV_USE_SIGNALFD |
|
|
2842 | if (sigfd >= 0) |
|
|
2843 | { |
|
|
2844 | sigset_t ss; |
|
|
2845 | |
|
|
2846 | sigemptyset (&ss); |
|
|
2847 | sigaddset (&ss, w->signum); |
|
|
2848 | sigdelset (&sigfd_set, w->signum); |
|
|
2849 | |
|
|
2850 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2851 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
2852 | } |
|
|
2853 | else |
|
|
2854 | #endif |
1812 | signal (w->signum, SIG_DFL); |
2855 | signal (w->signum, SIG_DFL); |
|
|
2856 | } |
|
|
2857 | |
|
|
2858 | EV_FREQUENT_CHECK; |
1813 | } |
2859 | } |
|
|
2860 | |
|
|
2861 | #endif |
|
|
2862 | |
|
|
2863 | #if EV_CHILD_ENABLE |
1814 | |
2864 | |
1815 | void |
2865 | void |
1816 | ev_child_start (EV_P_ ev_child *w) |
2866 | ev_child_start (EV_P_ ev_child *w) |
1817 | { |
2867 | { |
1818 | #if EV_MULTIPLICITY |
2868 | #if EV_MULTIPLICITY |
1819 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2869 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1820 | #endif |
2870 | #endif |
1821 | if (expect_false (ev_is_active (w))) |
2871 | if (expect_false (ev_is_active (w))) |
1822 | return; |
2872 | return; |
1823 | |
2873 | |
|
|
2874 | EV_FREQUENT_CHECK; |
|
|
2875 | |
1824 | ev_start (EV_A_ (W)w, 1); |
2876 | ev_start (EV_A_ (W)w, 1); |
1825 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2877 | wlist_add (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
|
|
2878 | |
|
|
2879 | EV_FREQUENT_CHECK; |
1826 | } |
2880 | } |
1827 | |
2881 | |
1828 | void |
2882 | void |
1829 | ev_child_stop (EV_P_ ev_child *w) |
2883 | ev_child_stop (EV_P_ ev_child *w) |
1830 | { |
2884 | { |
1831 | clear_pending (EV_A_ (W)w); |
2885 | clear_pending (EV_A_ (W)w); |
1832 | if (expect_false (!ev_is_active (w))) |
2886 | if (expect_false (!ev_is_active (w))) |
1833 | return; |
2887 | return; |
1834 | |
2888 | |
|
|
2889 | EV_FREQUENT_CHECK; |
|
|
2890 | |
1835 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2891 | wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); |
1836 | ev_stop (EV_A_ (W)w); |
2892 | ev_stop (EV_A_ (W)w); |
|
|
2893 | |
|
|
2894 | EV_FREQUENT_CHECK; |
1837 | } |
2895 | } |
|
|
2896 | |
|
|
2897 | #endif |
1838 | |
2898 | |
1839 | #if EV_STAT_ENABLE |
2899 | #if EV_STAT_ENABLE |
1840 | |
2900 | |
1841 | # ifdef _WIN32 |
2901 | # ifdef _WIN32 |
1842 | # undef lstat |
2902 | # undef lstat |
1843 | # define lstat(a,b) _stati64 (a,b) |
2903 | # define lstat(a,b) _stati64 (a,b) |
1844 | # endif |
2904 | # endif |
1845 | |
2905 | |
1846 | #define DEF_STAT_INTERVAL 5.0074891 |
2906 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2907 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
1847 | #define MIN_STAT_INTERVAL 0.1074891 |
2908 | #define MIN_STAT_INTERVAL 0.1074891 |
1848 | |
2909 | |
1849 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2910 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
1850 | |
2911 | |
1851 | #if EV_USE_INOTIFY |
2912 | #if EV_USE_INOTIFY |
1852 | # define EV_INOTIFY_BUFSIZE 8192 |
2913 | |
|
|
2914 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
2915 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
1853 | |
2916 | |
1854 | static void noinline |
2917 | static void noinline |
1855 | infy_add (EV_P_ ev_stat *w) |
2918 | infy_add (EV_P_ ev_stat *w) |
1856 | { |
2919 | { |
1857 | 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); |
2920 | 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); |
1858 | |
2921 | |
1859 | if (w->wd < 0) |
2922 | if (w->wd >= 0) |
|
|
2923 | { |
|
|
2924 | struct statfs sfs; |
|
|
2925 | |
|
|
2926 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2927 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
2928 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2929 | |
|
|
2930 | if (!fs_2625) |
|
|
2931 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
2932 | else if (!statfs (w->path, &sfs) |
|
|
2933 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
2934 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2935 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2936 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2937 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2938 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
2939 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
2940 | else |
|
|
2941 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
1860 | { |
2942 | } |
1861 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2943 | else |
|
|
2944 | { |
|
|
2945 | /* can't use inotify, continue to stat */ |
|
|
2946 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
1862 | |
2947 | |
1863 | /* monitor some parent directory for speedup hints */ |
2948 | /* if path is not there, monitor some parent directory for speedup hints */ |
|
|
2949 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
|
|
2950 | /* but an efficiency issue only */ |
1864 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2951 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
1865 | { |
2952 | { |
1866 | char path [4096]; |
2953 | char path [4096]; |
1867 | strcpy (path, w->path); |
2954 | strcpy (path, w->path); |
1868 | |
2955 | |
… | |
… | |
1871 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2958 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
1872 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2959 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
1873 | |
2960 | |
1874 | char *pend = strrchr (path, '/'); |
2961 | char *pend = strrchr (path, '/'); |
1875 | |
2962 | |
1876 | if (!pend) |
2963 | if (!pend || pend == path) |
1877 | break; /* whoops, no '/', complain to your admin */ |
2964 | break; |
1878 | |
2965 | |
1879 | *pend = 0; |
2966 | *pend = 0; |
1880 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2967 | w->wd = inotify_add_watch (fs_fd, path, mask); |
1881 | } |
2968 | } |
1882 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2969 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
1883 | } |
2970 | } |
1884 | } |
2971 | } |
1885 | else |
|
|
1886 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
1887 | |
2972 | |
1888 | if (w->wd >= 0) |
2973 | if (w->wd >= 0) |
1889 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2974 | wlist_add (&fs_hash [w->wd & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
|
|
2975 | |
|
|
2976 | /* now re-arm timer, if required */ |
|
|
2977 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
|
|
2978 | ev_timer_again (EV_A_ &w->timer); |
|
|
2979 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
1890 | } |
2980 | } |
1891 | |
2981 | |
1892 | static void noinline |
2982 | static void noinline |
1893 | infy_del (EV_P_ ev_stat *w) |
2983 | infy_del (EV_P_ ev_stat *w) |
1894 | { |
2984 | { |
… | |
… | |
1897 | |
2987 | |
1898 | if (wd < 0) |
2988 | if (wd < 0) |
1899 | return; |
2989 | return; |
1900 | |
2990 | |
1901 | w->wd = -2; |
2991 | w->wd = -2; |
1902 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
2992 | slot = wd & ((EV_INOTIFY_HASHSIZE) - 1); |
1903 | wlist_del (&fs_hash [slot].head, (WL)w); |
2993 | wlist_del (&fs_hash [slot].head, (WL)w); |
1904 | |
2994 | |
1905 | /* remove this watcher, if others are watching it, they will rearm */ |
2995 | /* remove this watcher, if others are watching it, they will rearm */ |
1906 | inotify_rm_watch (fs_fd, wd); |
2996 | inotify_rm_watch (fs_fd, wd); |
1907 | } |
2997 | } |
1908 | |
2998 | |
1909 | static void noinline |
2999 | static void noinline |
1910 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
3000 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
1911 | { |
3001 | { |
1912 | if (slot < 0) |
3002 | if (slot < 0) |
1913 | /* overflow, need to check for all hahs slots */ |
3003 | /* overflow, need to check for all hash slots */ |
1914 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3004 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
1915 | infy_wd (EV_A_ slot, wd, ev); |
3005 | infy_wd (EV_A_ slot, wd, ev); |
1916 | else |
3006 | else |
1917 | { |
3007 | { |
1918 | WL w_; |
3008 | WL w_; |
1919 | |
3009 | |
1920 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
3010 | for (w_ = fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head; w_; ) |
1921 | { |
3011 | { |
1922 | ev_stat *w = (ev_stat *)w_; |
3012 | ev_stat *w = (ev_stat *)w_; |
1923 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
3013 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
1924 | |
3014 | |
1925 | if (w->wd == wd || wd == -1) |
3015 | if (w->wd == wd || wd == -1) |
1926 | { |
3016 | { |
1927 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
3017 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
1928 | { |
3018 | { |
|
|
3019 | wlist_del (&fs_hash [slot & ((EV_INOTIFY_HASHSIZE) - 1)].head, (WL)w); |
1929 | w->wd = -1; |
3020 | w->wd = -1; |
1930 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3021 | infy_add (EV_A_ w); /* re-add, no matter what */ |
1931 | } |
3022 | } |
1932 | |
3023 | |
1933 | stat_timer_cb (EV_A_ &w->timer, 0); |
3024 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
1938 | |
3029 | |
1939 | static void |
3030 | static void |
1940 | infy_cb (EV_P_ ev_io *w, int revents) |
3031 | infy_cb (EV_P_ ev_io *w, int revents) |
1941 | { |
3032 | { |
1942 | char buf [EV_INOTIFY_BUFSIZE]; |
3033 | char buf [EV_INOTIFY_BUFSIZE]; |
1943 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
1944 | int ofs; |
3034 | int ofs; |
1945 | int len = read (fs_fd, buf, sizeof (buf)); |
3035 | int len = read (fs_fd, buf, sizeof (buf)); |
1946 | |
3036 | |
1947 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
3037 | for (ofs = 0; ofs < len; ) |
|
|
3038 | { |
|
|
3039 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
1948 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3040 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3041 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3042 | } |
1949 | } |
3043 | } |
1950 | |
3044 | |
1951 | void inline_size |
3045 | inline_size unsigned int |
|
|
3046 | ev_linux_version (void) |
|
|
3047 | { |
|
|
3048 | struct utsname buf; |
|
|
3049 | unsigned int v; |
|
|
3050 | int i; |
|
|
3051 | char *p = buf.release; |
|
|
3052 | |
|
|
3053 | if (uname (&buf)) |
|
|
3054 | return 0; |
|
|
3055 | |
|
|
3056 | for (i = 3+1; --i; ) |
|
|
3057 | { |
|
|
3058 | unsigned int c = 0; |
|
|
3059 | |
|
|
3060 | for (;;) |
|
|
3061 | { |
|
|
3062 | if (*p >= '0' && *p <= '9') |
|
|
3063 | c = c * 10 + *p++ - '0'; |
|
|
3064 | else |
|
|
3065 | { |
|
|
3066 | p += *p == '.'; |
|
|
3067 | break; |
|
|
3068 | } |
|
|
3069 | } |
|
|
3070 | |
|
|
3071 | v = (v << 8) | c; |
|
|
3072 | } |
|
|
3073 | |
|
|
3074 | return v; |
|
|
3075 | } |
|
|
3076 | |
|
|
3077 | inline_size void |
|
|
3078 | ev_check_2625 (EV_P) |
|
|
3079 | { |
|
|
3080 | /* kernels < 2.6.25 are borked |
|
|
3081 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
3082 | */ |
|
|
3083 | if (ev_linux_version () < 0x020619) |
|
|
3084 | return; |
|
|
3085 | |
|
|
3086 | fs_2625 = 1; |
|
|
3087 | } |
|
|
3088 | |
|
|
3089 | inline_size int |
|
|
3090 | infy_newfd (void) |
|
|
3091 | { |
|
|
3092 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3093 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3094 | if (fd >= 0) |
|
|
3095 | return fd; |
|
|
3096 | #endif |
|
|
3097 | return inotify_init (); |
|
|
3098 | } |
|
|
3099 | |
|
|
3100 | inline_size void |
1952 | infy_init (EV_P) |
3101 | infy_init (EV_P) |
1953 | { |
3102 | { |
1954 | if (fs_fd != -2) |
3103 | if (fs_fd != -2) |
1955 | return; |
3104 | return; |
1956 | |
3105 | |
|
|
3106 | fs_fd = -1; |
|
|
3107 | |
|
|
3108 | ev_check_2625 (EV_A); |
|
|
3109 | |
1957 | fs_fd = inotify_init (); |
3110 | fs_fd = infy_newfd (); |
1958 | |
3111 | |
1959 | if (fs_fd >= 0) |
3112 | if (fs_fd >= 0) |
1960 | { |
3113 | { |
|
|
3114 | fd_intern (fs_fd); |
1961 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3115 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
1962 | ev_set_priority (&fs_w, EV_MAXPRI); |
3116 | ev_set_priority (&fs_w, EV_MAXPRI); |
1963 | ev_io_start (EV_A_ &fs_w); |
3117 | ev_io_start (EV_A_ &fs_w); |
|
|
3118 | ev_unref (EV_A); |
1964 | } |
3119 | } |
1965 | } |
3120 | } |
1966 | |
3121 | |
1967 | void inline_size |
3122 | inline_size void |
1968 | infy_fork (EV_P) |
3123 | infy_fork (EV_P) |
1969 | { |
3124 | { |
1970 | int slot; |
3125 | int slot; |
1971 | |
3126 | |
1972 | if (fs_fd < 0) |
3127 | if (fs_fd < 0) |
1973 | return; |
3128 | return; |
1974 | |
3129 | |
|
|
3130 | ev_ref (EV_A); |
|
|
3131 | ev_io_stop (EV_A_ &fs_w); |
1975 | close (fs_fd); |
3132 | close (fs_fd); |
1976 | fs_fd = inotify_init (); |
3133 | fs_fd = infy_newfd (); |
1977 | |
3134 | |
|
|
3135 | if (fs_fd >= 0) |
|
|
3136 | { |
|
|
3137 | fd_intern (fs_fd); |
|
|
3138 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3139 | ev_io_start (EV_A_ &fs_w); |
|
|
3140 | ev_unref (EV_A); |
|
|
3141 | } |
|
|
3142 | |
1978 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3143 | for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) |
1979 | { |
3144 | { |
1980 | WL w_ = fs_hash [slot].head; |
3145 | WL w_ = fs_hash [slot].head; |
1981 | fs_hash [slot].head = 0; |
3146 | fs_hash [slot].head = 0; |
1982 | |
3147 | |
1983 | while (w_) |
3148 | while (w_) |
… | |
… | |
1988 | w->wd = -1; |
3153 | w->wd = -1; |
1989 | |
3154 | |
1990 | if (fs_fd >= 0) |
3155 | if (fs_fd >= 0) |
1991 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3156 | infy_add (EV_A_ w); /* re-add, no matter what */ |
1992 | else |
3157 | else |
|
|
3158 | { |
|
|
3159 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3160 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
1993 | ev_timer_start (EV_A_ &w->timer); |
3161 | ev_timer_again (EV_A_ &w->timer); |
|
|
3162 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3163 | } |
1994 | } |
3164 | } |
1995 | |
|
|
1996 | } |
3165 | } |
1997 | } |
3166 | } |
1998 | |
3167 | |
|
|
3168 | #endif |
|
|
3169 | |
|
|
3170 | #ifdef _WIN32 |
|
|
3171 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
3172 | #else |
|
|
3173 | # define EV_LSTAT(p,b) lstat (p, b) |
1999 | #endif |
3174 | #endif |
2000 | |
3175 | |
2001 | void |
3176 | void |
2002 | ev_stat_stat (EV_P_ ev_stat *w) |
3177 | ev_stat_stat (EV_P_ ev_stat *w) |
2003 | { |
3178 | { |
… | |
… | |
2010 | static void noinline |
3185 | static void noinline |
2011 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3186 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2012 | { |
3187 | { |
2013 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3188 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2014 | |
3189 | |
2015 | /* we copy this here each the time so that */ |
3190 | ev_statdata prev = w->attr; |
2016 | /* prev has the old value when the callback gets invoked */ |
|
|
2017 | w->prev = w->attr; |
|
|
2018 | ev_stat_stat (EV_A_ w); |
3191 | ev_stat_stat (EV_A_ w); |
2019 | |
3192 | |
2020 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3193 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2021 | if ( |
3194 | if ( |
2022 | w->prev.st_dev != w->attr.st_dev |
3195 | prev.st_dev != w->attr.st_dev |
2023 | || w->prev.st_ino != w->attr.st_ino |
3196 | || prev.st_ino != w->attr.st_ino |
2024 | || w->prev.st_mode != w->attr.st_mode |
3197 | || prev.st_mode != w->attr.st_mode |
2025 | || w->prev.st_nlink != w->attr.st_nlink |
3198 | || prev.st_nlink != w->attr.st_nlink |
2026 | || w->prev.st_uid != w->attr.st_uid |
3199 | || prev.st_uid != w->attr.st_uid |
2027 | || w->prev.st_gid != w->attr.st_gid |
3200 | || prev.st_gid != w->attr.st_gid |
2028 | || w->prev.st_rdev != w->attr.st_rdev |
3201 | || prev.st_rdev != w->attr.st_rdev |
2029 | || w->prev.st_size != w->attr.st_size |
3202 | || prev.st_size != w->attr.st_size |
2030 | || w->prev.st_atime != w->attr.st_atime |
3203 | || prev.st_atime != w->attr.st_atime |
2031 | || w->prev.st_mtime != w->attr.st_mtime |
3204 | || prev.st_mtime != w->attr.st_mtime |
2032 | || w->prev.st_ctime != w->attr.st_ctime |
3205 | || prev.st_ctime != w->attr.st_ctime |
2033 | ) { |
3206 | ) { |
|
|
3207 | /* we only update w->prev on actual differences */ |
|
|
3208 | /* in case we test more often than invoke the callback, */ |
|
|
3209 | /* to ensure that prev is always different to attr */ |
|
|
3210 | w->prev = prev; |
|
|
3211 | |
2034 | #if EV_USE_INOTIFY |
3212 | #if EV_USE_INOTIFY |
|
|
3213 | if (fs_fd >= 0) |
|
|
3214 | { |
2035 | infy_del (EV_A_ w); |
3215 | infy_del (EV_A_ w); |
2036 | infy_add (EV_A_ w); |
3216 | infy_add (EV_A_ w); |
2037 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
3217 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
3218 | } |
2038 | #endif |
3219 | #endif |
2039 | |
3220 | |
2040 | ev_feed_event (EV_A_ w, EV_STAT); |
3221 | ev_feed_event (EV_A_ w, EV_STAT); |
2041 | } |
3222 | } |
2042 | } |
3223 | } |
… | |
… | |
2045 | ev_stat_start (EV_P_ ev_stat *w) |
3226 | ev_stat_start (EV_P_ ev_stat *w) |
2046 | { |
3227 | { |
2047 | if (expect_false (ev_is_active (w))) |
3228 | if (expect_false (ev_is_active (w))) |
2048 | return; |
3229 | return; |
2049 | |
3230 | |
2050 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2051 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2052 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2053 | |
|
|
2054 | ev_stat_stat (EV_A_ w); |
3231 | ev_stat_stat (EV_A_ w); |
2055 | |
3232 | |
|
|
3233 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2056 | if (w->interval < MIN_STAT_INTERVAL) |
3234 | w->interval = MIN_STAT_INTERVAL; |
2057 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2058 | |
3235 | |
2059 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
3236 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2060 | ev_set_priority (&w->timer, ev_priority (w)); |
3237 | ev_set_priority (&w->timer, ev_priority (w)); |
2061 | |
3238 | |
2062 | #if EV_USE_INOTIFY |
3239 | #if EV_USE_INOTIFY |
2063 | infy_init (EV_A); |
3240 | infy_init (EV_A); |
2064 | |
3241 | |
2065 | if (fs_fd >= 0) |
3242 | if (fs_fd >= 0) |
2066 | infy_add (EV_A_ w); |
3243 | infy_add (EV_A_ w); |
2067 | else |
3244 | else |
2068 | #endif |
3245 | #endif |
|
|
3246 | { |
2069 | ev_timer_start (EV_A_ &w->timer); |
3247 | ev_timer_again (EV_A_ &w->timer); |
|
|
3248 | ev_unref (EV_A); |
|
|
3249 | } |
2070 | |
3250 | |
2071 | ev_start (EV_A_ (W)w, 1); |
3251 | ev_start (EV_A_ (W)w, 1); |
|
|
3252 | |
|
|
3253 | EV_FREQUENT_CHECK; |
2072 | } |
3254 | } |
2073 | |
3255 | |
2074 | void |
3256 | void |
2075 | ev_stat_stop (EV_P_ ev_stat *w) |
3257 | ev_stat_stop (EV_P_ ev_stat *w) |
2076 | { |
3258 | { |
2077 | clear_pending (EV_A_ (W)w); |
3259 | clear_pending (EV_A_ (W)w); |
2078 | if (expect_false (!ev_is_active (w))) |
3260 | if (expect_false (!ev_is_active (w))) |
2079 | return; |
3261 | return; |
2080 | |
3262 | |
|
|
3263 | EV_FREQUENT_CHECK; |
|
|
3264 | |
2081 | #if EV_USE_INOTIFY |
3265 | #if EV_USE_INOTIFY |
2082 | infy_del (EV_A_ w); |
3266 | infy_del (EV_A_ w); |
2083 | #endif |
3267 | #endif |
|
|
3268 | |
|
|
3269 | if (ev_is_active (&w->timer)) |
|
|
3270 | { |
|
|
3271 | ev_ref (EV_A); |
2084 | ev_timer_stop (EV_A_ &w->timer); |
3272 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3273 | } |
2085 | |
3274 | |
2086 | ev_stop (EV_A_ (W)w); |
3275 | ev_stop (EV_A_ (W)w); |
|
|
3276 | |
|
|
3277 | EV_FREQUENT_CHECK; |
2087 | } |
3278 | } |
2088 | #endif |
3279 | #endif |
2089 | |
3280 | |
2090 | #if EV_IDLE_ENABLE |
3281 | #if EV_IDLE_ENABLE |
2091 | void |
3282 | void |
… | |
… | |
2093 | { |
3284 | { |
2094 | if (expect_false (ev_is_active (w))) |
3285 | if (expect_false (ev_is_active (w))) |
2095 | return; |
3286 | return; |
2096 | |
3287 | |
2097 | pri_adjust (EV_A_ (W)w); |
3288 | pri_adjust (EV_A_ (W)w); |
|
|
3289 | |
|
|
3290 | EV_FREQUENT_CHECK; |
2098 | |
3291 | |
2099 | { |
3292 | { |
2100 | int active = ++idlecnt [ABSPRI (w)]; |
3293 | int active = ++idlecnt [ABSPRI (w)]; |
2101 | |
3294 | |
2102 | ++idleall; |
3295 | ++idleall; |
2103 | ev_start (EV_A_ (W)w, active); |
3296 | ev_start (EV_A_ (W)w, active); |
2104 | |
3297 | |
2105 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
3298 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2106 | idles [ABSPRI (w)][active - 1] = w; |
3299 | idles [ABSPRI (w)][active - 1] = w; |
2107 | } |
3300 | } |
|
|
3301 | |
|
|
3302 | EV_FREQUENT_CHECK; |
2108 | } |
3303 | } |
2109 | |
3304 | |
2110 | void |
3305 | void |
2111 | ev_idle_stop (EV_P_ ev_idle *w) |
3306 | ev_idle_stop (EV_P_ ev_idle *w) |
2112 | { |
3307 | { |
2113 | clear_pending (EV_A_ (W)w); |
3308 | clear_pending (EV_A_ (W)w); |
2114 | if (expect_false (!ev_is_active (w))) |
3309 | if (expect_false (!ev_is_active (w))) |
2115 | return; |
3310 | return; |
2116 | |
3311 | |
|
|
3312 | EV_FREQUENT_CHECK; |
|
|
3313 | |
2117 | { |
3314 | { |
2118 | int active = ((W)w)->active; |
3315 | int active = ev_active (w); |
2119 | |
3316 | |
2120 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
3317 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2121 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
3318 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2122 | |
3319 | |
2123 | ev_stop (EV_A_ (W)w); |
3320 | ev_stop (EV_A_ (W)w); |
2124 | --idleall; |
3321 | --idleall; |
2125 | } |
3322 | } |
2126 | } |
|
|
2127 | #endif |
|
|
2128 | |
3323 | |
|
|
3324 | EV_FREQUENT_CHECK; |
|
|
3325 | } |
|
|
3326 | #endif |
|
|
3327 | |
|
|
3328 | #if EV_PREPARE_ENABLE |
2129 | void |
3329 | void |
2130 | ev_prepare_start (EV_P_ ev_prepare *w) |
3330 | ev_prepare_start (EV_P_ ev_prepare *w) |
2131 | { |
3331 | { |
2132 | if (expect_false (ev_is_active (w))) |
3332 | if (expect_false (ev_is_active (w))) |
2133 | return; |
3333 | return; |
|
|
3334 | |
|
|
3335 | EV_FREQUENT_CHECK; |
2134 | |
3336 | |
2135 | ev_start (EV_A_ (W)w, ++preparecnt); |
3337 | ev_start (EV_A_ (W)w, ++preparecnt); |
2136 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
3338 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2137 | prepares [preparecnt - 1] = w; |
3339 | prepares [preparecnt - 1] = w; |
|
|
3340 | |
|
|
3341 | EV_FREQUENT_CHECK; |
2138 | } |
3342 | } |
2139 | |
3343 | |
2140 | void |
3344 | void |
2141 | ev_prepare_stop (EV_P_ ev_prepare *w) |
3345 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2142 | { |
3346 | { |
2143 | clear_pending (EV_A_ (W)w); |
3347 | clear_pending (EV_A_ (W)w); |
2144 | if (expect_false (!ev_is_active (w))) |
3348 | if (expect_false (!ev_is_active (w))) |
2145 | return; |
3349 | return; |
2146 | |
3350 | |
|
|
3351 | EV_FREQUENT_CHECK; |
|
|
3352 | |
2147 | { |
3353 | { |
2148 | int active = ((W)w)->active; |
3354 | int active = ev_active (w); |
|
|
3355 | |
2149 | prepares [active - 1] = prepares [--preparecnt]; |
3356 | prepares [active - 1] = prepares [--preparecnt]; |
2150 | ((W)prepares [active - 1])->active = active; |
3357 | ev_active (prepares [active - 1]) = active; |
2151 | } |
3358 | } |
2152 | |
3359 | |
2153 | ev_stop (EV_A_ (W)w); |
3360 | ev_stop (EV_A_ (W)w); |
2154 | } |
|
|
2155 | |
3361 | |
|
|
3362 | EV_FREQUENT_CHECK; |
|
|
3363 | } |
|
|
3364 | #endif |
|
|
3365 | |
|
|
3366 | #if EV_CHECK_ENABLE |
2156 | void |
3367 | void |
2157 | ev_check_start (EV_P_ ev_check *w) |
3368 | ev_check_start (EV_P_ ev_check *w) |
2158 | { |
3369 | { |
2159 | if (expect_false (ev_is_active (w))) |
3370 | if (expect_false (ev_is_active (w))) |
2160 | return; |
3371 | return; |
|
|
3372 | |
|
|
3373 | EV_FREQUENT_CHECK; |
2161 | |
3374 | |
2162 | ev_start (EV_A_ (W)w, ++checkcnt); |
3375 | ev_start (EV_A_ (W)w, ++checkcnt); |
2163 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
3376 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2164 | checks [checkcnt - 1] = w; |
3377 | checks [checkcnt - 1] = w; |
|
|
3378 | |
|
|
3379 | EV_FREQUENT_CHECK; |
2165 | } |
3380 | } |
2166 | |
3381 | |
2167 | void |
3382 | void |
2168 | ev_check_stop (EV_P_ ev_check *w) |
3383 | ev_check_stop (EV_P_ ev_check *w) |
2169 | { |
3384 | { |
2170 | clear_pending (EV_A_ (W)w); |
3385 | clear_pending (EV_A_ (W)w); |
2171 | if (expect_false (!ev_is_active (w))) |
3386 | if (expect_false (!ev_is_active (w))) |
2172 | return; |
3387 | return; |
2173 | |
3388 | |
|
|
3389 | EV_FREQUENT_CHECK; |
|
|
3390 | |
2174 | { |
3391 | { |
2175 | int active = ((W)w)->active; |
3392 | int active = ev_active (w); |
|
|
3393 | |
2176 | checks [active - 1] = checks [--checkcnt]; |
3394 | checks [active - 1] = checks [--checkcnt]; |
2177 | ((W)checks [active - 1])->active = active; |
3395 | ev_active (checks [active - 1]) = active; |
2178 | } |
3396 | } |
2179 | |
3397 | |
2180 | ev_stop (EV_A_ (W)w); |
3398 | ev_stop (EV_A_ (W)w); |
|
|
3399 | |
|
|
3400 | EV_FREQUENT_CHECK; |
2181 | } |
3401 | } |
|
|
3402 | #endif |
2182 | |
3403 | |
2183 | #if EV_EMBED_ENABLE |
3404 | #if EV_EMBED_ENABLE |
2184 | void noinline |
3405 | void noinline |
2185 | ev_embed_sweep (EV_P_ ev_embed *w) |
3406 | ev_embed_sweep (EV_P_ ev_embed *w) |
2186 | { |
3407 | { |
… | |
… | |
2193 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3414 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2194 | |
3415 | |
2195 | if (ev_cb (w)) |
3416 | if (ev_cb (w)) |
2196 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3417 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2197 | else |
3418 | else |
2198 | ev_embed_sweep (loop, w); |
3419 | ev_loop (w->other, EVLOOP_NONBLOCK); |
2199 | } |
3420 | } |
2200 | |
3421 | |
2201 | static void |
3422 | static void |
2202 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3423 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
2203 | { |
3424 | { |
2204 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3425 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
2205 | |
3426 | |
2206 | fd_reify (w->other); |
3427 | { |
|
|
3428 | EV_P = w->other; |
|
|
3429 | |
|
|
3430 | while (fdchangecnt) |
|
|
3431 | { |
|
|
3432 | fd_reify (EV_A); |
|
|
3433 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
3434 | } |
|
|
3435 | } |
2207 | } |
3436 | } |
|
|
3437 | |
|
|
3438 | static void |
|
|
3439 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
3440 | { |
|
|
3441 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
3442 | |
|
|
3443 | ev_embed_stop (EV_A_ w); |
|
|
3444 | |
|
|
3445 | { |
|
|
3446 | EV_P = w->other; |
|
|
3447 | |
|
|
3448 | ev_loop_fork (EV_A); |
|
|
3449 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
3450 | } |
|
|
3451 | |
|
|
3452 | ev_embed_start (EV_A_ w); |
|
|
3453 | } |
|
|
3454 | |
|
|
3455 | #if 0 |
|
|
3456 | static void |
|
|
3457 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
3458 | { |
|
|
3459 | ev_idle_stop (EV_A_ idle); |
|
|
3460 | } |
|
|
3461 | #endif |
2208 | |
3462 | |
2209 | void |
3463 | void |
2210 | ev_embed_start (EV_P_ ev_embed *w) |
3464 | ev_embed_start (EV_P_ ev_embed *w) |
2211 | { |
3465 | { |
2212 | if (expect_false (ev_is_active (w))) |
3466 | if (expect_false (ev_is_active (w))) |
2213 | return; |
3467 | return; |
2214 | |
3468 | |
2215 | { |
3469 | { |
2216 | struct ev_loop *loop = w->other; |
3470 | EV_P = w->other; |
2217 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3471 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2218 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3472 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2219 | } |
3473 | } |
|
|
3474 | |
|
|
3475 | EV_FREQUENT_CHECK; |
2220 | |
3476 | |
2221 | ev_set_priority (&w->io, ev_priority (w)); |
3477 | ev_set_priority (&w->io, ev_priority (w)); |
2222 | ev_io_start (EV_A_ &w->io); |
3478 | ev_io_start (EV_A_ &w->io); |
2223 | |
3479 | |
2224 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
3480 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
2225 | ev_set_priority (&w->prepare, EV_MINPRI); |
3481 | ev_set_priority (&w->prepare, EV_MINPRI); |
2226 | ev_prepare_start (EV_A_ &w->prepare); |
3482 | ev_prepare_start (EV_A_ &w->prepare); |
2227 | |
3483 | |
|
|
3484 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
3485 | ev_fork_start (EV_A_ &w->fork); |
|
|
3486 | |
|
|
3487 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
3488 | |
2228 | ev_start (EV_A_ (W)w, 1); |
3489 | ev_start (EV_A_ (W)w, 1); |
|
|
3490 | |
|
|
3491 | EV_FREQUENT_CHECK; |
2229 | } |
3492 | } |
2230 | |
3493 | |
2231 | void |
3494 | void |
2232 | ev_embed_stop (EV_P_ ev_embed *w) |
3495 | ev_embed_stop (EV_P_ ev_embed *w) |
2233 | { |
3496 | { |
2234 | clear_pending (EV_A_ (W)w); |
3497 | clear_pending (EV_A_ (W)w); |
2235 | if (expect_false (!ev_is_active (w))) |
3498 | if (expect_false (!ev_is_active (w))) |
2236 | return; |
3499 | return; |
2237 | |
3500 | |
|
|
3501 | EV_FREQUENT_CHECK; |
|
|
3502 | |
2238 | ev_io_stop (EV_A_ &w->io); |
3503 | ev_io_stop (EV_A_ &w->io); |
2239 | ev_prepare_stop (EV_A_ &w->prepare); |
3504 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
3505 | ev_fork_stop (EV_A_ &w->fork); |
2240 | |
3506 | |
2241 | ev_stop (EV_A_ (W)w); |
3507 | ev_stop (EV_A_ (W)w); |
|
|
3508 | |
|
|
3509 | EV_FREQUENT_CHECK; |
2242 | } |
3510 | } |
2243 | #endif |
3511 | #endif |
2244 | |
3512 | |
2245 | #if EV_FORK_ENABLE |
3513 | #if EV_FORK_ENABLE |
2246 | void |
3514 | void |
2247 | ev_fork_start (EV_P_ ev_fork *w) |
3515 | ev_fork_start (EV_P_ ev_fork *w) |
2248 | { |
3516 | { |
2249 | if (expect_false (ev_is_active (w))) |
3517 | if (expect_false (ev_is_active (w))) |
2250 | return; |
3518 | return; |
|
|
3519 | |
|
|
3520 | EV_FREQUENT_CHECK; |
2251 | |
3521 | |
2252 | ev_start (EV_A_ (W)w, ++forkcnt); |
3522 | ev_start (EV_A_ (W)w, ++forkcnt); |
2253 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
3523 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2254 | forks [forkcnt - 1] = w; |
3524 | forks [forkcnt - 1] = w; |
|
|
3525 | |
|
|
3526 | EV_FREQUENT_CHECK; |
2255 | } |
3527 | } |
2256 | |
3528 | |
2257 | void |
3529 | void |
2258 | ev_fork_stop (EV_P_ ev_fork *w) |
3530 | ev_fork_stop (EV_P_ ev_fork *w) |
2259 | { |
3531 | { |
2260 | clear_pending (EV_A_ (W)w); |
3532 | clear_pending (EV_A_ (W)w); |
2261 | if (expect_false (!ev_is_active (w))) |
3533 | if (expect_false (!ev_is_active (w))) |
2262 | return; |
3534 | return; |
2263 | |
3535 | |
|
|
3536 | EV_FREQUENT_CHECK; |
|
|
3537 | |
2264 | { |
3538 | { |
2265 | int active = ((W)w)->active; |
3539 | int active = ev_active (w); |
|
|
3540 | |
2266 | forks [active - 1] = forks [--forkcnt]; |
3541 | forks [active - 1] = forks [--forkcnt]; |
2267 | ((W)forks [active - 1])->active = active; |
3542 | ev_active (forks [active - 1]) = active; |
2268 | } |
3543 | } |
2269 | |
3544 | |
2270 | ev_stop (EV_A_ (W)w); |
3545 | ev_stop (EV_A_ (W)w); |
|
|
3546 | |
|
|
3547 | EV_FREQUENT_CHECK; |
|
|
3548 | } |
|
|
3549 | #endif |
|
|
3550 | |
|
|
3551 | #if EV_ASYNC_ENABLE |
|
|
3552 | void |
|
|
3553 | ev_async_start (EV_P_ ev_async *w) |
|
|
3554 | { |
|
|
3555 | if (expect_false (ev_is_active (w))) |
|
|
3556 | return; |
|
|
3557 | |
|
|
3558 | evpipe_init (EV_A); |
|
|
3559 | |
|
|
3560 | EV_FREQUENT_CHECK; |
|
|
3561 | |
|
|
3562 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
3563 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
3564 | asyncs [asynccnt - 1] = w; |
|
|
3565 | |
|
|
3566 | EV_FREQUENT_CHECK; |
|
|
3567 | } |
|
|
3568 | |
|
|
3569 | void |
|
|
3570 | ev_async_stop (EV_P_ ev_async *w) |
|
|
3571 | { |
|
|
3572 | clear_pending (EV_A_ (W)w); |
|
|
3573 | if (expect_false (!ev_is_active (w))) |
|
|
3574 | return; |
|
|
3575 | |
|
|
3576 | EV_FREQUENT_CHECK; |
|
|
3577 | |
|
|
3578 | { |
|
|
3579 | int active = ev_active (w); |
|
|
3580 | |
|
|
3581 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
3582 | ev_active (asyncs [active - 1]) = active; |
|
|
3583 | } |
|
|
3584 | |
|
|
3585 | ev_stop (EV_A_ (W)w); |
|
|
3586 | |
|
|
3587 | EV_FREQUENT_CHECK; |
|
|
3588 | } |
|
|
3589 | |
|
|
3590 | void |
|
|
3591 | ev_async_send (EV_P_ ev_async *w) |
|
|
3592 | { |
|
|
3593 | w->sent = 1; |
|
|
3594 | evpipe_write (EV_A_ &async_pending); |
2271 | } |
3595 | } |
2272 | #endif |
3596 | #endif |
2273 | |
3597 | |
2274 | /*****************************************************************************/ |
3598 | /*****************************************************************************/ |
2275 | |
3599 | |
… | |
… | |
2285 | once_cb (EV_P_ struct ev_once *once, int revents) |
3609 | once_cb (EV_P_ struct ev_once *once, int revents) |
2286 | { |
3610 | { |
2287 | void (*cb)(int revents, void *arg) = once->cb; |
3611 | void (*cb)(int revents, void *arg) = once->cb; |
2288 | void *arg = once->arg; |
3612 | void *arg = once->arg; |
2289 | |
3613 | |
2290 | ev_io_stop (EV_A_ &once->io); |
3614 | ev_io_stop (EV_A_ &once->io); |
2291 | ev_timer_stop (EV_A_ &once->to); |
3615 | ev_timer_stop (EV_A_ &once->to); |
2292 | ev_free (once); |
3616 | ev_free (once); |
2293 | |
3617 | |
2294 | cb (revents, arg); |
3618 | cb (revents, arg); |
2295 | } |
3619 | } |
2296 | |
3620 | |
2297 | static void |
3621 | static void |
2298 | once_cb_io (EV_P_ ev_io *w, int revents) |
3622 | once_cb_io (EV_P_ ev_io *w, int revents) |
2299 | { |
3623 | { |
2300 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3624 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3625 | |
|
|
3626 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2301 | } |
3627 | } |
2302 | |
3628 | |
2303 | static void |
3629 | static void |
2304 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3630 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2305 | { |
3631 | { |
2306 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3632 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3633 | |
|
|
3634 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2307 | } |
3635 | } |
2308 | |
3636 | |
2309 | void |
3637 | void |
2310 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3638 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2311 | { |
3639 | { |
2312 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3640 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
2313 | |
3641 | |
2314 | if (expect_false (!once)) |
3642 | if (expect_false (!once)) |
2315 | { |
3643 | { |
2316 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
3644 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg); |
2317 | return; |
3645 | return; |
2318 | } |
3646 | } |
2319 | |
3647 | |
2320 | once->cb = cb; |
3648 | once->cb = cb; |
2321 | once->arg = arg; |
3649 | once->arg = arg; |
… | |
… | |
2333 | ev_timer_set (&once->to, timeout, 0.); |
3661 | ev_timer_set (&once->to, timeout, 0.); |
2334 | ev_timer_start (EV_A_ &once->to); |
3662 | ev_timer_start (EV_A_ &once->to); |
2335 | } |
3663 | } |
2336 | } |
3664 | } |
2337 | |
3665 | |
|
|
3666 | /*****************************************************************************/ |
|
|
3667 | |
|
|
3668 | #if EV_WALK_ENABLE |
|
|
3669 | void |
|
|
3670 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3671 | { |
|
|
3672 | int i, j; |
|
|
3673 | ev_watcher_list *wl, *wn; |
|
|
3674 | |
|
|
3675 | if (types & (EV_IO | EV_EMBED)) |
|
|
3676 | for (i = 0; i < anfdmax; ++i) |
|
|
3677 | for (wl = anfds [i].head; wl; ) |
|
|
3678 | { |
|
|
3679 | wn = wl->next; |
|
|
3680 | |
|
|
3681 | #if EV_EMBED_ENABLE |
|
|
3682 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3683 | { |
|
|
3684 | if (types & EV_EMBED) |
|
|
3685 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3686 | } |
|
|
3687 | else |
|
|
3688 | #endif |
|
|
3689 | #if EV_USE_INOTIFY |
|
|
3690 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3691 | ; |
|
|
3692 | else |
|
|
3693 | #endif |
|
|
3694 | if ((ev_io *)wl != &pipe_w) |
|
|
3695 | if (types & EV_IO) |
|
|
3696 | cb (EV_A_ EV_IO, wl); |
|
|
3697 | |
|
|
3698 | wl = wn; |
|
|
3699 | } |
|
|
3700 | |
|
|
3701 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3702 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3703 | #if EV_STAT_ENABLE |
|
|
3704 | /*TODO: timer is not always active*/ |
|
|
3705 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3706 | { |
|
|
3707 | if (types & EV_STAT) |
|
|
3708 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3709 | } |
|
|
3710 | else |
|
|
3711 | #endif |
|
|
3712 | if (types & EV_TIMER) |
|
|
3713 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3714 | |
|
|
3715 | #if EV_PERIODIC_ENABLE |
|
|
3716 | if (types & EV_PERIODIC) |
|
|
3717 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3718 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3719 | #endif |
|
|
3720 | |
|
|
3721 | #if EV_IDLE_ENABLE |
|
|
3722 | if (types & EV_IDLE) |
|
|
3723 | for (j = NUMPRI; i--; ) |
|
|
3724 | for (i = idlecnt [j]; i--; ) |
|
|
3725 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3726 | #endif |
|
|
3727 | |
|
|
3728 | #if EV_FORK_ENABLE |
|
|
3729 | if (types & EV_FORK) |
|
|
3730 | for (i = forkcnt; i--; ) |
|
|
3731 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3732 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3733 | #endif |
|
|
3734 | |
|
|
3735 | #if EV_ASYNC_ENABLE |
|
|
3736 | if (types & EV_ASYNC) |
|
|
3737 | for (i = asynccnt; i--; ) |
|
|
3738 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3739 | #endif |
|
|
3740 | |
|
|
3741 | #if EV_PREPARE_ENABLE |
|
|
3742 | if (types & EV_PREPARE) |
|
|
3743 | for (i = preparecnt; i--; ) |
|
|
3744 | # if EV_EMBED_ENABLE |
|
|
3745 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3746 | # endif |
|
|
3747 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3748 | #endif |
|
|
3749 | |
|
|
3750 | #if EV_CHECK_ENABLE |
|
|
3751 | if (types & EV_CHECK) |
|
|
3752 | for (i = checkcnt; i--; ) |
|
|
3753 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3754 | #endif |
|
|
3755 | |
|
|
3756 | #if EV_SIGNAL_ENABLE |
|
|
3757 | if (types & EV_SIGNAL) |
|
|
3758 | for (i = 0; i < EV_NSIG - 1; ++i) |
|
|
3759 | for (wl = signals [i].head; wl; ) |
|
|
3760 | { |
|
|
3761 | wn = wl->next; |
|
|
3762 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3763 | wl = wn; |
|
|
3764 | } |
|
|
3765 | #endif |
|
|
3766 | |
|
|
3767 | #if EV_CHILD_ENABLE |
|
|
3768 | if (types & EV_CHILD) |
|
|
3769 | for (i = (EV_PID_HASHSIZE); i--; ) |
|
|
3770 | for (wl = childs [i]; wl; ) |
|
|
3771 | { |
|
|
3772 | wn = wl->next; |
|
|
3773 | cb (EV_A_ EV_CHILD, wl); |
|
|
3774 | wl = wn; |
|
|
3775 | } |
|
|
3776 | #endif |
|
|
3777 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3778 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3779 | } |
|
|
3780 | #endif |
|
|
3781 | |
2338 | #if EV_MULTIPLICITY |
3782 | #if EV_MULTIPLICITY |
2339 | #include "ev_wrap.h" |
3783 | #include "ev_wrap.h" |
2340 | #endif |
3784 | #endif |
2341 | |
3785 | |
2342 | #ifdef __cplusplus |
3786 | #ifdef __cplusplus |