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 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 1 |
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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 1 |
62 | # else |
93 | # else |
63 | # define EV_USE_SELECT 0 |
94 | # define EV_USE_SELECT 0 |
… | |
… | |
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 1 |
86 | # else |
117 | # else |
87 | # define EV_USE_KQUEUE 0 |
118 | # define EV_USE_KQUEUE 0 |
88 | # endif |
119 | # endif |
89 | # endif |
120 | # endif |
… | |
… | |
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 1 |
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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 1 |
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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 | |
… | |
… | |
129 | #ifndef _WIN32 |
177 | #ifndef _WIN32 |
130 | # include <sys/time.h> |
178 | # include <sys/time.h> |
131 | # include <sys/wait.h> |
179 | # include <sys/wait.h> |
132 | # include <unistd.h> |
180 | # include <unistd.h> |
133 | #else |
181 | #else |
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182 | # include <io.h> |
134 | # define WIN32_LEAN_AND_MEAN |
183 | # define WIN32_LEAN_AND_MEAN |
135 | # include <windows.h> |
184 | # include <windows.h> |
136 | # ifndef EV_SELECT_IS_WINSOCKET |
185 | # ifndef EV_SELECT_IS_WINSOCKET |
137 | # define EV_SELECT_IS_WINSOCKET 1 |
186 | # define EV_SELECT_IS_WINSOCKET 1 |
138 | # endif |
187 | # endif |
139 | #endif |
188 | #endif |
140 | |
189 | |
141 | /**/ |
190 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
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191 | |
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192 | /* try to deduce the maximum number of signals on this platform */ |
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193 | #if defined (EV_NSIG) |
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194 | /* use what's provided */ |
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195 | #elif defined (NSIG) |
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196 | # define EV_NSIG (NSIG) |
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197 | #elif defined(_NSIG) |
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198 | # define EV_NSIG (_NSIG) |
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199 | #elif defined (SIGMAX) |
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200 | # define EV_NSIG (SIGMAX+1) |
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201 | #elif defined (SIG_MAX) |
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202 | # define EV_NSIG (SIG_MAX+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 (MAXSIG) |
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206 | # define EV_NSIG (MAXSIG+1) |
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207 | #elif defined (MAX_SIG) |
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208 | # define EV_NSIG (MAX_SIG+1) |
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209 | #elif defined (SIGARRAYSIZE) |
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210 | # define EV_NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ |
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211 | #elif defined (_sys_nsig) |
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212 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
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213 | #else |
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214 | # error "unable to find value for NSIG, please report" |
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215 | /* to make it compile regardless, just remove the above line */ |
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216 | # define EV_NSIG 65 |
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217 | #endif |
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218 | |
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219 | #ifndef EV_USE_CLOCK_SYSCALL |
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220 | # if __linux && __GLIBC__ >= 2 |
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221 | # define EV_USE_CLOCK_SYSCALL 1 |
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222 | # else |
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223 | # define EV_USE_CLOCK_SYSCALL 0 |
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224 | # endif |
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225 | #endif |
142 | |
226 | |
143 | #ifndef EV_USE_MONOTONIC |
227 | #ifndef EV_USE_MONOTONIC |
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228 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
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229 | # define EV_USE_MONOTONIC 1 |
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230 | # else |
144 | # define EV_USE_MONOTONIC 0 |
231 | # define EV_USE_MONOTONIC 0 |
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232 | # endif |
145 | #endif |
233 | #endif |
146 | |
234 | |
147 | #ifndef EV_USE_REALTIME |
235 | #ifndef EV_USE_REALTIME |
148 | # define EV_USE_REALTIME 0 |
236 | # define EV_USE_REALTIME !EV_USE_CLOCK_SYSCALL |
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237 | #endif |
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238 | |
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239 | #ifndef EV_USE_NANOSLEEP |
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240 | # if _POSIX_C_SOURCE >= 199309L |
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241 | # define EV_USE_NANOSLEEP 1 |
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242 | # else |
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243 | # define EV_USE_NANOSLEEP 0 |
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244 | # endif |
149 | #endif |
245 | #endif |
150 | |
246 | |
151 | #ifndef EV_USE_SELECT |
247 | #ifndef EV_USE_SELECT |
152 | # define EV_USE_SELECT 1 |
248 | # define EV_USE_SELECT 1 |
153 | #endif |
249 | #endif |
… | |
… | |
159 | # define EV_USE_POLL 1 |
255 | # define EV_USE_POLL 1 |
160 | # endif |
256 | # endif |
161 | #endif |
257 | #endif |
162 | |
258 | |
163 | #ifndef EV_USE_EPOLL |
259 | #ifndef EV_USE_EPOLL |
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260 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
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261 | # define EV_USE_EPOLL 1 |
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262 | # else |
164 | # define EV_USE_EPOLL 0 |
263 | # define EV_USE_EPOLL 0 |
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264 | # endif |
165 | #endif |
265 | #endif |
166 | |
266 | |
167 | #ifndef EV_USE_KQUEUE |
267 | #ifndef EV_USE_KQUEUE |
168 | # define EV_USE_KQUEUE 0 |
268 | # define EV_USE_KQUEUE 0 |
169 | #endif |
269 | #endif |
… | |
… | |
171 | #ifndef EV_USE_PORT |
271 | #ifndef EV_USE_PORT |
172 | # define EV_USE_PORT 0 |
272 | # define EV_USE_PORT 0 |
173 | #endif |
273 | #endif |
174 | |
274 | |
175 | #ifndef EV_USE_INOTIFY |
275 | #ifndef EV_USE_INOTIFY |
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276 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
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277 | # define EV_USE_INOTIFY 1 |
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278 | # else |
176 | # define EV_USE_INOTIFY 0 |
279 | # define EV_USE_INOTIFY 0 |
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280 | # endif |
177 | #endif |
281 | #endif |
178 | |
282 | |
179 | #ifndef EV_PID_HASHSIZE |
283 | #ifndef EV_PID_HASHSIZE |
180 | # if EV_MINIMAL |
284 | # if EV_MINIMAL |
181 | # define EV_PID_HASHSIZE 1 |
285 | # define EV_PID_HASHSIZE 1 |
… | |
… | |
190 | # else |
294 | # else |
191 | # define EV_INOTIFY_HASHSIZE 16 |
295 | # define EV_INOTIFY_HASHSIZE 16 |
192 | # endif |
296 | # endif |
193 | #endif |
297 | #endif |
194 | |
298 | |
195 | /**/ |
299 | #ifndef EV_USE_EVENTFD |
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300 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
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301 | # define EV_USE_EVENTFD 1 |
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302 | # else |
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303 | # define EV_USE_EVENTFD 0 |
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304 | # endif |
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305 | #endif |
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306 | |
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307 | #ifndef EV_USE_SIGNALFD |
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308 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
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309 | # define EV_USE_SIGNALFD 1 |
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310 | # else |
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311 | # define EV_USE_SIGNALFD 0 |
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312 | # endif |
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313 | #endif |
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314 | |
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315 | #if 0 /* debugging */ |
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316 | # define EV_VERIFY 3 |
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317 | # define EV_USE_4HEAP 1 |
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318 | # define EV_HEAP_CACHE_AT 1 |
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319 | #endif |
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320 | |
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321 | #ifndef EV_VERIFY |
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322 | # define EV_VERIFY !EV_MINIMAL |
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323 | #endif |
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324 | |
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325 | #ifndef EV_USE_4HEAP |
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326 | # define EV_USE_4HEAP !EV_MINIMAL |
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327 | #endif |
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328 | |
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329 | #ifndef EV_HEAP_CACHE_AT |
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330 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
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331 | #endif |
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332 | |
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333 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
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334 | /* which makes programs even slower. might work on other unices, too. */ |
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335 | #if EV_USE_CLOCK_SYSCALL |
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336 | # include <syscall.h> |
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337 | # ifdef SYS_clock_gettime |
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338 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
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339 | # undef EV_USE_MONOTONIC |
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340 | # define EV_USE_MONOTONIC 1 |
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341 | # else |
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342 | # undef EV_USE_CLOCK_SYSCALL |
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343 | # define EV_USE_CLOCK_SYSCALL 0 |
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344 | # endif |
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345 | #endif |
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346 | |
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347 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
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348 | |
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349 | #ifdef _AIX |
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350 | /* AIX has a completely broken poll.h header */ |
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351 | # undef EV_USE_POLL |
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352 | # define EV_USE_POLL 0 |
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353 | #endif |
196 | |
354 | |
197 | #ifndef CLOCK_MONOTONIC |
355 | #ifndef CLOCK_MONOTONIC |
198 | # undef EV_USE_MONOTONIC |
356 | # undef EV_USE_MONOTONIC |
199 | # define EV_USE_MONOTONIC 0 |
357 | # define EV_USE_MONOTONIC 0 |
200 | #endif |
358 | #endif |
… | |
… | |
202 | #ifndef CLOCK_REALTIME |
360 | #ifndef CLOCK_REALTIME |
203 | # undef EV_USE_REALTIME |
361 | # undef EV_USE_REALTIME |
204 | # define EV_USE_REALTIME 0 |
362 | # define EV_USE_REALTIME 0 |
205 | #endif |
363 | #endif |
206 | |
364 | |
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365 | #if !EV_STAT_ENABLE |
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366 | # undef EV_USE_INOTIFY |
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367 | # define EV_USE_INOTIFY 0 |
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368 | #endif |
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369 | |
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370 | #if !EV_USE_NANOSLEEP |
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371 | # ifndef _WIN32 |
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372 | # include <sys/select.h> |
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373 | # endif |
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374 | #endif |
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375 | |
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376 | #if EV_USE_INOTIFY |
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377 | # include <sys/utsname.h> |
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378 | # include <sys/statfs.h> |
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379 | # include <sys/inotify.h> |
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380 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
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381 | # ifndef IN_DONT_FOLLOW |
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382 | # undef EV_USE_INOTIFY |
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383 | # define EV_USE_INOTIFY 0 |
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384 | # endif |
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385 | #endif |
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386 | |
207 | #if EV_SELECT_IS_WINSOCKET |
387 | #if EV_SELECT_IS_WINSOCKET |
208 | # include <winsock.h> |
388 | # include <winsock.h> |
209 | #endif |
389 | #endif |
210 | |
390 | |
211 | #if !EV_STAT_ENABLE |
391 | #if EV_USE_EVENTFD |
212 | # define EV_USE_INOTIFY 0 |
392 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
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393 | # include <stdint.h> |
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394 | # ifndef EFD_NONBLOCK |
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395 | # define EFD_NONBLOCK O_NONBLOCK |
213 | #endif |
396 | # endif |
214 | |
397 | # ifndef EFD_CLOEXEC |
215 | #if EV_USE_INOTIFY |
398 | # ifdef O_CLOEXEC |
216 | # include <sys/inotify.h> |
399 | # define EFD_CLOEXEC O_CLOEXEC |
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400 | # else |
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401 | # define EFD_CLOEXEC 02000000 |
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402 | # endif |
217 | #endif |
403 | # endif |
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404 | # ifdef __cplusplus |
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405 | extern "C" { |
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406 | # endif |
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407 | int eventfd (unsigned int initval, int flags); |
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408 | # ifdef __cplusplus |
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409 | } |
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410 | # endif |
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411 | #endif |
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412 | |
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413 | #if EV_USE_SIGNALFD |
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414 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
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415 | # include <stdint.h> |
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416 | # ifndef SFD_NONBLOCK |
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417 | # define SFD_NONBLOCK O_NONBLOCK |
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418 | # endif |
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419 | # ifndef SFD_CLOEXEC |
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420 | # ifdef O_CLOEXEC |
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421 | # define SFD_CLOEXEC O_CLOEXEC |
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422 | # else |
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423 | # define SFD_CLOEXEC 02000000 |
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424 | # endif |
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425 | # endif |
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426 | # ifdef __cplusplus |
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427 | extern "C" { |
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428 | # endif |
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429 | int signalfd (int fd, const sigset_t *mask, int flags); |
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430 | |
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431 | struct signalfd_siginfo |
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432 | { |
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433 | uint32_t ssi_signo; |
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434 | char pad[128 - sizeof (uint32_t)]; |
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435 | }; |
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436 | # ifdef __cplusplus |
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437 | } |
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438 | # endif |
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439 | #endif |
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440 | |
218 | |
441 | |
219 | /**/ |
442 | /**/ |
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443 | |
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444 | #if EV_VERIFY >= 3 |
|
|
445 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
|
|
446 | #else |
|
|
447 | # define EV_FREQUENT_CHECK do { } while (0) |
|
|
448 | #endif |
220 | |
449 | |
221 | /* |
450 | /* |
222 | * This is used to avoid floating point rounding problems. |
451 | * This is used to avoid floating point rounding problems. |
223 | * It is added to ev_rt_now when scheduling periodics |
452 | * It is added to ev_rt_now when scheduling periodics |
224 | * to ensure progress, time-wise, even when rounding |
453 | * to ensure progress, time-wise, even when rounding |
… | |
… | |
228 | */ |
457 | */ |
229 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
458 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
230 | |
459 | |
231 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
460 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
232 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
461 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
233 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
|
|
234 | |
462 | |
235 | #if __GNUC__ >= 3 |
463 | #if __GNUC__ >= 4 |
236 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
464 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
237 | # define noinline __attribute__ ((noinline)) |
465 | # define noinline __attribute__ ((noinline)) |
238 | #else |
466 | #else |
239 | # define expect(expr,value) (expr) |
467 | # define expect(expr,value) (expr) |
240 | # define noinline |
468 | # define noinline |
241 | # if __STDC_VERSION__ < 199901L |
469 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
242 | # define inline |
470 | # define inline |
243 | # endif |
471 | # endif |
244 | #endif |
472 | #endif |
245 | |
473 | |
246 | #define expect_false(expr) expect ((expr) != 0, 0) |
474 | #define expect_false(expr) expect ((expr) != 0, 0) |
… | |
… | |
251 | # define inline_speed static noinline |
479 | # define inline_speed static noinline |
252 | #else |
480 | #else |
253 | # define inline_speed static inline |
481 | # define inline_speed static inline |
254 | #endif |
482 | #endif |
255 | |
483 | |
256 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
484 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
|
|
485 | |
|
|
486 | #if EV_MINPRI == EV_MAXPRI |
|
|
487 | # define ABSPRI(w) (((W)w), 0) |
|
|
488 | #else |
257 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
489 | # define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
|
|
490 | #endif |
258 | |
491 | |
259 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
492 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
260 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
493 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
261 | |
494 | |
262 | typedef ev_watcher *W; |
495 | typedef ev_watcher *W; |
263 | typedef ev_watcher_list *WL; |
496 | typedef ev_watcher_list *WL; |
264 | typedef ev_watcher_time *WT; |
497 | typedef ev_watcher_time *WT; |
265 | |
498 | |
|
|
499 | #define ev_active(w) ((W)(w))->active |
|
|
500 | #define ev_at(w) ((WT)(w))->at |
|
|
501 | |
|
|
502 | #if EV_USE_REALTIME |
|
|
503 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
|
|
504 | /* giving it a reasonably high chance of working on typical architetcures */ |
|
|
505 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
|
|
506 | #endif |
|
|
507 | |
|
|
508 | #if EV_USE_MONOTONIC |
266 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
509 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
|
|
510 | #endif |
|
|
511 | |
|
|
512 | #ifndef EV_FD_TO_WIN32_HANDLE |
|
|
513 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
|
|
514 | #endif |
|
|
515 | #ifndef EV_WIN32_HANDLE_TO_FD |
|
|
516 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
|
|
517 | #endif |
|
|
518 | #ifndef EV_WIN32_CLOSE_FD |
|
|
519 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
|
|
520 | #endif |
267 | |
521 | |
268 | #ifdef _WIN32 |
522 | #ifdef _WIN32 |
269 | # include "ev_win32.c" |
523 | # include "ev_win32.c" |
270 | #endif |
524 | #endif |
271 | |
525 | |
… | |
… | |
278 | { |
532 | { |
279 | syserr_cb = cb; |
533 | syserr_cb = cb; |
280 | } |
534 | } |
281 | |
535 | |
282 | static void noinline |
536 | static void noinline |
283 | syserr (const char *msg) |
537 | ev_syserr (const char *msg) |
284 | { |
538 | { |
285 | if (!msg) |
539 | if (!msg) |
286 | msg = "(libev) system error"; |
540 | msg = "(libev) system error"; |
287 | |
541 | |
288 | if (syserr_cb) |
542 | if (syserr_cb) |
… | |
… | |
292 | perror (msg); |
546 | perror (msg); |
293 | abort (); |
547 | abort (); |
294 | } |
548 | } |
295 | } |
549 | } |
296 | |
550 | |
|
|
551 | static void * |
|
|
552 | ev_realloc_emul (void *ptr, long size) |
|
|
553 | { |
|
|
554 | /* some systems, notably openbsd and darwin, fail to properly |
|
|
555 | * implement realloc (x, 0) (as required by both ansi c-98 and |
|
|
556 | * the single unix specification, so work around them here. |
|
|
557 | */ |
|
|
558 | |
|
|
559 | if (size) |
|
|
560 | return realloc (ptr, size); |
|
|
561 | |
|
|
562 | free (ptr); |
|
|
563 | return 0; |
|
|
564 | } |
|
|
565 | |
297 | static void *(*alloc)(void *ptr, long size); |
566 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
298 | |
567 | |
299 | void |
568 | void |
300 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
569 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
301 | { |
570 | { |
302 | alloc = cb; |
571 | alloc = cb; |
303 | } |
572 | } |
304 | |
573 | |
305 | inline_speed void * |
574 | inline_speed void * |
306 | ev_realloc (void *ptr, long size) |
575 | ev_realloc (void *ptr, long size) |
307 | { |
576 | { |
308 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
577 | ptr = alloc (ptr, size); |
309 | |
578 | |
310 | if (!ptr && size) |
579 | if (!ptr && size) |
311 | { |
580 | { |
312 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
581 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
313 | abort (); |
582 | abort (); |
… | |
… | |
319 | #define ev_malloc(size) ev_realloc (0, (size)) |
588 | #define ev_malloc(size) ev_realloc (0, (size)) |
320 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
589 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
321 | |
590 | |
322 | /*****************************************************************************/ |
591 | /*****************************************************************************/ |
323 | |
592 | |
|
|
593 | /* set in reify when reification needed */ |
|
|
594 | #define EV_ANFD_REIFY 1 |
|
|
595 | |
|
|
596 | /* file descriptor info structure */ |
324 | typedef struct |
597 | typedef struct |
325 | { |
598 | { |
326 | WL head; |
599 | WL head; |
327 | unsigned char events; |
600 | unsigned char events; /* the events watched for */ |
|
|
601 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
|
|
602 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
328 | unsigned char reify; |
603 | unsigned char unused; |
|
|
604 | #if EV_USE_EPOLL |
|
|
605 | unsigned int egen; /* generation counter to counter epoll bugs */ |
|
|
606 | #endif |
329 | #if EV_SELECT_IS_WINSOCKET |
607 | #if EV_SELECT_IS_WINSOCKET |
330 | SOCKET handle; |
608 | SOCKET handle; |
331 | #endif |
609 | #endif |
332 | } ANFD; |
610 | } ANFD; |
333 | |
611 | |
|
|
612 | /* stores the pending event set for a given watcher */ |
334 | typedef struct |
613 | typedef struct |
335 | { |
614 | { |
336 | W w; |
615 | W w; |
337 | int events; |
616 | int events; /* the pending event set for the given watcher */ |
338 | } ANPENDING; |
617 | } ANPENDING; |
339 | |
618 | |
340 | #if EV_USE_INOTIFY |
619 | #if EV_USE_INOTIFY |
|
|
620 | /* hash table entry per inotify-id */ |
341 | typedef struct |
621 | typedef struct |
342 | { |
622 | { |
343 | WL head; |
623 | WL head; |
344 | } ANFS; |
624 | } ANFS; |
|
|
625 | #endif |
|
|
626 | |
|
|
627 | /* Heap Entry */ |
|
|
628 | #if EV_HEAP_CACHE_AT |
|
|
629 | /* a heap element */ |
|
|
630 | typedef struct { |
|
|
631 | ev_tstamp at; |
|
|
632 | WT w; |
|
|
633 | } ANHE; |
|
|
634 | |
|
|
635 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
|
|
636 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
|
637 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
638 | #else |
|
|
639 | /* a heap element */ |
|
|
640 | typedef WT ANHE; |
|
|
641 | |
|
|
642 | #define ANHE_w(he) (he) |
|
|
643 | #define ANHE_at(he) (he)->at |
|
|
644 | #define ANHE_at_cache(he) |
345 | #endif |
645 | #endif |
346 | |
646 | |
347 | #if EV_MULTIPLICITY |
647 | #if EV_MULTIPLICITY |
348 | |
648 | |
349 | struct ev_loop |
649 | struct ev_loop |
… | |
… | |
368 | |
668 | |
369 | static int ev_default_loop_ptr; |
669 | static int ev_default_loop_ptr; |
370 | |
670 | |
371 | #endif |
671 | #endif |
372 | |
672 | |
|
|
673 | #if EV_MINIMAL < 2 |
|
|
674 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
|
675 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
|
|
676 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
|
|
677 | #else |
|
|
678 | # define EV_RELEASE_CB (void)0 |
|
|
679 | # define EV_ACQUIRE_CB (void)0 |
|
|
680 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
|
|
681 | #endif |
|
|
682 | |
|
|
683 | #define EVUNLOOP_RECURSE 0x80 |
|
|
684 | |
373 | /*****************************************************************************/ |
685 | /*****************************************************************************/ |
374 | |
686 | |
|
|
687 | #ifndef EV_HAVE_EV_TIME |
375 | ev_tstamp |
688 | ev_tstamp |
376 | ev_time (void) |
689 | ev_time (void) |
377 | { |
690 | { |
378 | #if EV_USE_REALTIME |
691 | #if EV_USE_REALTIME |
|
|
692 | if (expect_true (have_realtime)) |
|
|
693 | { |
379 | struct timespec ts; |
694 | struct timespec ts; |
380 | clock_gettime (CLOCK_REALTIME, &ts); |
695 | clock_gettime (CLOCK_REALTIME, &ts); |
381 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
696 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
382 | #else |
697 | } |
|
|
698 | #endif |
|
|
699 | |
383 | struct timeval tv; |
700 | struct timeval tv; |
384 | gettimeofday (&tv, 0); |
701 | gettimeofday (&tv, 0); |
385 | return tv.tv_sec + tv.tv_usec * 1e-6; |
702 | return tv.tv_sec + tv.tv_usec * 1e-6; |
386 | #endif |
|
|
387 | } |
703 | } |
|
|
704 | #endif |
388 | |
705 | |
389 | ev_tstamp inline_size |
706 | inline_size ev_tstamp |
390 | get_clock (void) |
707 | get_clock (void) |
391 | { |
708 | { |
392 | #if EV_USE_MONOTONIC |
709 | #if EV_USE_MONOTONIC |
393 | if (expect_true (have_monotonic)) |
710 | if (expect_true (have_monotonic)) |
394 | { |
711 | { |
… | |
… | |
407 | { |
724 | { |
408 | return ev_rt_now; |
725 | return ev_rt_now; |
409 | } |
726 | } |
410 | #endif |
727 | #endif |
411 | |
728 | |
412 | int inline_size |
729 | void |
|
|
730 | ev_sleep (ev_tstamp delay) |
|
|
731 | { |
|
|
732 | if (delay > 0.) |
|
|
733 | { |
|
|
734 | #if EV_USE_NANOSLEEP |
|
|
735 | struct timespec ts; |
|
|
736 | |
|
|
737 | ts.tv_sec = (time_t)delay; |
|
|
738 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
739 | |
|
|
740 | nanosleep (&ts, 0); |
|
|
741 | #elif defined(_WIN32) |
|
|
742 | Sleep ((unsigned long)(delay * 1e3)); |
|
|
743 | #else |
|
|
744 | struct timeval tv; |
|
|
745 | |
|
|
746 | tv.tv_sec = (time_t)delay; |
|
|
747 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
748 | |
|
|
749 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
|
|
750 | /* something not guaranteed by newer posix versions, but guaranteed */ |
|
|
751 | /* by older ones */ |
|
|
752 | select (0, 0, 0, 0, &tv); |
|
|
753 | #endif |
|
|
754 | } |
|
|
755 | } |
|
|
756 | |
|
|
757 | /*****************************************************************************/ |
|
|
758 | |
|
|
759 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
|
|
760 | |
|
|
761 | /* find a suitable new size for the given array, */ |
|
|
762 | /* hopefully by rounding to a ncie-to-malloc size */ |
|
|
763 | inline_size int |
413 | array_nextsize (int elem, int cur, int cnt) |
764 | array_nextsize (int elem, int cur, int cnt) |
414 | { |
765 | { |
415 | int ncur = cur + 1; |
766 | int ncur = cur + 1; |
416 | |
767 | |
417 | do |
768 | do |
418 | ncur <<= 1; |
769 | ncur <<= 1; |
419 | while (cnt > ncur); |
770 | while (cnt > ncur); |
420 | |
771 | |
421 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
772 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
422 | if (elem * ncur > 4096) |
773 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
423 | { |
774 | { |
424 | ncur *= elem; |
775 | ncur *= elem; |
425 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
776 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
426 | ncur = ncur - sizeof (void *) * 4; |
777 | ncur = ncur - sizeof (void *) * 4; |
427 | ncur /= elem; |
778 | ncur /= elem; |
428 | } |
779 | } |
429 | |
780 | |
430 | return ncur; |
781 | return ncur; |
… | |
… | |
434 | array_realloc (int elem, void *base, int *cur, int cnt) |
785 | array_realloc (int elem, void *base, int *cur, int cnt) |
435 | { |
786 | { |
436 | *cur = array_nextsize (elem, *cur, cnt); |
787 | *cur = array_nextsize (elem, *cur, cnt); |
437 | return ev_realloc (base, elem * *cur); |
788 | return ev_realloc (base, elem * *cur); |
438 | } |
789 | } |
|
|
790 | |
|
|
791 | #define array_init_zero(base,count) \ |
|
|
792 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
439 | |
793 | |
440 | #define array_needsize(type,base,cur,cnt,init) \ |
794 | #define array_needsize(type,base,cur,cnt,init) \ |
441 | if (expect_false ((cnt) > (cur))) \ |
795 | if (expect_false ((cnt) > (cur))) \ |
442 | { \ |
796 | { \ |
443 | int ocur_ = (cur); \ |
797 | int ocur_ = (cur); \ |
… | |
… | |
455 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
809 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
456 | } |
810 | } |
457 | #endif |
811 | #endif |
458 | |
812 | |
459 | #define array_free(stem, idx) \ |
813 | #define array_free(stem, idx) \ |
460 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
814 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 |
461 | |
815 | |
462 | /*****************************************************************************/ |
816 | /*****************************************************************************/ |
|
|
817 | |
|
|
818 | /* dummy callback for pending events */ |
|
|
819 | static void noinline |
|
|
820 | pendingcb (EV_P_ ev_prepare *w, int revents) |
|
|
821 | { |
|
|
822 | } |
463 | |
823 | |
464 | void noinline |
824 | void noinline |
465 | ev_feed_event (EV_P_ void *w, int revents) |
825 | ev_feed_event (EV_P_ void *w, int revents) |
466 | { |
826 | { |
467 | W w_ = (W)w; |
827 | W w_ = (W)w; |
… | |
… | |
476 | pendings [pri][w_->pending - 1].w = w_; |
836 | pendings [pri][w_->pending - 1].w = w_; |
477 | pendings [pri][w_->pending - 1].events = revents; |
837 | pendings [pri][w_->pending - 1].events = revents; |
478 | } |
838 | } |
479 | } |
839 | } |
480 | |
840 | |
481 | void inline_speed |
841 | inline_speed void |
|
|
842 | feed_reverse (EV_P_ W w) |
|
|
843 | { |
|
|
844 | array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); |
|
|
845 | rfeeds [rfeedcnt++] = w; |
|
|
846 | } |
|
|
847 | |
|
|
848 | inline_size void |
|
|
849 | feed_reverse_done (EV_P_ int revents) |
|
|
850 | { |
|
|
851 | do |
|
|
852 | ev_feed_event (EV_A_ rfeeds [--rfeedcnt], revents); |
|
|
853 | while (rfeedcnt); |
|
|
854 | } |
|
|
855 | |
|
|
856 | inline_speed void |
482 | queue_events (EV_P_ W *events, int eventcnt, int type) |
857 | queue_events (EV_P_ W *events, int eventcnt, int type) |
483 | { |
858 | { |
484 | int i; |
859 | int i; |
485 | |
860 | |
486 | for (i = 0; i < eventcnt; ++i) |
861 | for (i = 0; i < eventcnt; ++i) |
487 | ev_feed_event (EV_A_ events [i], type); |
862 | ev_feed_event (EV_A_ events [i], type); |
488 | } |
863 | } |
489 | |
864 | |
490 | /*****************************************************************************/ |
865 | /*****************************************************************************/ |
491 | |
866 | |
492 | void inline_size |
867 | inline_speed void |
493 | anfds_init (ANFD *base, int count) |
|
|
494 | { |
|
|
495 | while (count--) |
|
|
496 | { |
|
|
497 | base->head = 0; |
|
|
498 | base->events = EV_NONE; |
|
|
499 | base->reify = 0; |
|
|
500 | |
|
|
501 | ++base; |
|
|
502 | } |
|
|
503 | } |
|
|
504 | |
|
|
505 | void inline_speed |
|
|
506 | fd_event (EV_P_ int fd, int revents) |
868 | fd_event_nc (EV_P_ int fd, int revents) |
507 | { |
869 | { |
508 | ANFD *anfd = anfds + fd; |
870 | ANFD *anfd = anfds + fd; |
509 | ev_io *w; |
871 | ev_io *w; |
510 | |
872 | |
511 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
873 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
515 | if (ev) |
877 | if (ev) |
516 | ev_feed_event (EV_A_ (W)w, ev); |
878 | ev_feed_event (EV_A_ (W)w, ev); |
517 | } |
879 | } |
518 | } |
880 | } |
519 | |
881 | |
|
|
882 | /* do not submit kernel events for fds that have reify set */ |
|
|
883 | /* because that means they changed while we were polling for new events */ |
|
|
884 | inline_speed void |
|
|
885 | fd_event (EV_P_ int fd, int revents) |
|
|
886 | { |
|
|
887 | ANFD *anfd = anfds + fd; |
|
|
888 | |
|
|
889 | if (expect_true (!anfd->reify)) |
|
|
890 | fd_event_nc (EV_A_ fd, revents); |
|
|
891 | } |
|
|
892 | |
520 | void |
893 | void |
521 | ev_feed_fd_event (EV_P_ int fd, int revents) |
894 | ev_feed_fd_event (EV_P_ int fd, int revents) |
522 | { |
895 | { |
523 | if (fd >= 0 && fd < anfdmax) |
896 | if (fd >= 0 && fd < anfdmax) |
524 | fd_event (EV_A_ fd, revents); |
897 | fd_event_nc (EV_A_ fd, revents); |
525 | } |
898 | } |
526 | |
899 | |
527 | void inline_size |
900 | /* make sure the external fd watch events are in-sync */ |
|
|
901 | /* with the kernel/libev internal state */ |
|
|
902 | inline_size void |
528 | fd_reify (EV_P) |
903 | fd_reify (EV_P) |
529 | { |
904 | { |
530 | int i; |
905 | int i; |
531 | |
906 | |
532 | for (i = 0; i < fdchangecnt; ++i) |
907 | for (i = 0; i < fdchangecnt; ++i) |
533 | { |
908 | { |
534 | int fd = fdchanges [i]; |
909 | int fd = fdchanges [i]; |
535 | ANFD *anfd = anfds + fd; |
910 | ANFD *anfd = anfds + fd; |
536 | ev_io *w; |
911 | ev_io *w; |
537 | |
912 | |
538 | int events = 0; |
913 | unsigned char events = 0; |
539 | |
914 | |
540 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
915 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
541 | events |= w->events; |
916 | events |= (unsigned char)w->events; |
542 | |
917 | |
543 | #if EV_SELECT_IS_WINSOCKET |
918 | #if EV_SELECT_IS_WINSOCKET |
544 | if (events) |
919 | if (events) |
545 | { |
920 | { |
546 | unsigned long argp; |
921 | unsigned long arg; |
547 | anfd->handle = _get_osfhandle (fd); |
922 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
548 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
923 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
549 | } |
924 | } |
550 | #endif |
925 | #endif |
551 | |
926 | |
|
|
927 | { |
|
|
928 | unsigned char o_events = anfd->events; |
|
|
929 | unsigned char o_reify = anfd->reify; |
|
|
930 | |
552 | anfd->reify = 0; |
931 | anfd->reify = 0; |
553 | |
|
|
554 | backend_modify (EV_A_ fd, anfd->events, events); |
|
|
555 | anfd->events = events; |
932 | anfd->events = events; |
|
|
933 | |
|
|
934 | if (o_events != events || o_reify & EV__IOFDSET) |
|
|
935 | backend_modify (EV_A_ fd, o_events, events); |
|
|
936 | } |
556 | } |
937 | } |
557 | |
938 | |
558 | fdchangecnt = 0; |
939 | fdchangecnt = 0; |
559 | } |
940 | } |
560 | |
941 | |
561 | void inline_size |
942 | /* something about the given fd changed */ |
|
|
943 | inline_size void |
562 | fd_change (EV_P_ int fd) |
944 | fd_change (EV_P_ int fd, int flags) |
563 | { |
945 | { |
564 | if (expect_false (anfds [fd].reify)) |
946 | unsigned char reify = anfds [fd].reify; |
565 | return; |
|
|
566 | |
|
|
567 | anfds [fd].reify = 1; |
947 | anfds [fd].reify |= flags; |
568 | |
948 | |
|
|
949 | if (expect_true (!reify)) |
|
|
950 | { |
569 | ++fdchangecnt; |
951 | ++fdchangecnt; |
570 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
952 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
571 | fdchanges [fdchangecnt - 1] = fd; |
953 | fdchanges [fdchangecnt - 1] = fd; |
|
|
954 | } |
572 | } |
955 | } |
573 | |
956 | |
574 | void inline_speed |
957 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
|
|
958 | inline_speed void |
575 | fd_kill (EV_P_ int fd) |
959 | fd_kill (EV_P_ int fd) |
576 | { |
960 | { |
577 | ev_io *w; |
961 | ev_io *w; |
578 | |
962 | |
579 | while ((w = (ev_io *)anfds [fd].head)) |
963 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
581 | ev_io_stop (EV_A_ w); |
965 | ev_io_stop (EV_A_ w); |
582 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
966 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
583 | } |
967 | } |
584 | } |
968 | } |
585 | |
969 | |
586 | int inline_size |
970 | /* check whether the given fd is atcually valid, for error recovery */ |
|
|
971 | inline_size int |
587 | fd_valid (int fd) |
972 | fd_valid (int fd) |
588 | { |
973 | { |
589 | #ifdef _WIN32 |
974 | #ifdef _WIN32 |
590 | return _get_osfhandle (fd) != -1; |
975 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
591 | #else |
976 | #else |
592 | return fcntl (fd, F_GETFD) != -1; |
977 | return fcntl (fd, F_GETFD) != -1; |
593 | #endif |
978 | #endif |
594 | } |
979 | } |
595 | |
980 | |
… | |
… | |
599 | { |
984 | { |
600 | int fd; |
985 | int fd; |
601 | |
986 | |
602 | for (fd = 0; fd < anfdmax; ++fd) |
987 | for (fd = 0; fd < anfdmax; ++fd) |
603 | if (anfds [fd].events) |
988 | if (anfds [fd].events) |
604 | if (!fd_valid (fd) == -1 && errno == EBADF) |
989 | if (!fd_valid (fd) && errno == EBADF) |
605 | fd_kill (EV_A_ fd); |
990 | fd_kill (EV_A_ fd); |
606 | } |
991 | } |
607 | |
992 | |
608 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
993 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
609 | static void noinline |
994 | static void noinline |
… | |
… | |
613 | |
998 | |
614 | for (fd = anfdmax; fd--; ) |
999 | for (fd = anfdmax; fd--; ) |
615 | if (anfds [fd].events) |
1000 | if (anfds [fd].events) |
616 | { |
1001 | { |
617 | fd_kill (EV_A_ fd); |
1002 | fd_kill (EV_A_ fd); |
618 | return; |
1003 | break; |
619 | } |
1004 | } |
620 | } |
1005 | } |
621 | |
1006 | |
622 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1007 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
623 | static void noinline |
1008 | static void noinline |
… | |
… | |
627 | |
1012 | |
628 | for (fd = 0; fd < anfdmax; ++fd) |
1013 | for (fd = 0; fd < anfdmax; ++fd) |
629 | if (anfds [fd].events) |
1014 | if (anfds [fd].events) |
630 | { |
1015 | { |
631 | anfds [fd].events = 0; |
1016 | anfds [fd].events = 0; |
632 | fd_change (EV_A_ fd); |
1017 | anfds [fd].emask = 0; |
|
|
1018 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
633 | } |
1019 | } |
634 | } |
1020 | } |
635 | |
1021 | |
636 | /*****************************************************************************/ |
1022 | /*****************************************************************************/ |
637 | |
1023 | |
638 | void inline_speed |
1024 | /* |
639 | upheap (WT *heap, int k) |
1025 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
640 | { |
1026 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
641 | WT w = heap [k]; |
1027 | * the branching factor of the d-tree. |
|
|
1028 | */ |
642 | |
1029 | |
643 | while (k) |
1030 | /* |
644 | { |
1031 | * at the moment we allow libev the luxury of two heaps, |
645 | int p = (k - 1) >> 1; |
1032 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
1033 | * which is more cache-efficient. |
|
|
1034 | * the difference is about 5% with 50000+ watchers. |
|
|
1035 | */ |
|
|
1036 | #if EV_USE_4HEAP |
646 | |
1037 | |
647 | if (heap [p]->at <= w->at) |
1038 | #define DHEAP 4 |
|
|
1039 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
1040 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
1041 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
|
|
1042 | |
|
|
1043 | /* away from the root */ |
|
|
1044 | inline_speed void |
|
|
1045 | downheap (ANHE *heap, int N, int k) |
|
|
1046 | { |
|
|
1047 | ANHE he = heap [k]; |
|
|
1048 | ANHE *E = heap + N + HEAP0; |
|
|
1049 | |
|
|
1050 | for (;;) |
|
|
1051 | { |
|
|
1052 | ev_tstamp minat; |
|
|
1053 | ANHE *minpos; |
|
|
1054 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
|
|
1055 | |
|
|
1056 | /* find minimum child */ |
|
|
1057 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
1058 | { |
|
|
1059 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
1060 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
1061 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
1062 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
1063 | } |
|
|
1064 | else if (pos < E) |
|
|
1065 | { |
|
|
1066 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
1067 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
1068 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
1069 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
1070 | } |
|
|
1071 | else |
648 | break; |
1072 | break; |
649 | |
1073 | |
|
|
1074 | if (ANHE_at (he) <= minat) |
|
|
1075 | break; |
|
|
1076 | |
|
|
1077 | heap [k] = *minpos; |
|
|
1078 | ev_active (ANHE_w (*minpos)) = k; |
|
|
1079 | |
|
|
1080 | k = minpos - heap; |
|
|
1081 | } |
|
|
1082 | |
|
|
1083 | heap [k] = he; |
|
|
1084 | ev_active (ANHE_w (he)) = k; |
|
|
1085 | } |
|
|
1086 | |
|
|
1087 | #else /* 4HEAP */ |
|
|
1088 | |
|
|
1089 | #define HEAP0 1 |
|
|
1090 | #define HPARENT(k) ((k) >> 1) |
|
|
1091 | #define UPHEAP_DONE(p,k) (!(p)) |
|
|
1092 | |
|
|
1093 | /* away from the root */ |
|
|
1094 | inline_speed void |
|
|
1095 | downheap (ANHE *heap, int N, int k) |
|
|
1096 | { |
|
|
1097 | ANHE he = heap [k]; |
|
|
1098 | |
|
|
1099 | for (;;) |
|
|
1100 | { |
|
|
1101 | int c = k << 1; |
|
|
1102 | |
|
|
1103 | if (c >= N + HEAP0) |
|
|
1104 | break; |
|
|
1105 | |
|
|
1106 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
1107 | ? 1 : 0; |
|
|
1108 | |
|
|
1109 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
1110 | break; |
|
|
1111 | |
|
|
1112 | heap [k] = heap [c]; |
|
|
1113 | ev_active (ANHE_w (heap [k])) = k; |
|
|
1114 | |
|
|
1115 | k = c; |
|
|
1116 | } |
|
|
1117 | |
|
|
1118 | heap [k] = he; |
|
|
1119 | ev_active (ANHE_w (he)) = k; |
|
|
1120 | } |
|
|
1121 | #endif |
|
|
1122 | |
|
|
1123 | /* towards the root */ |
|
|
1124 | inline_speed void |
|
|
1125 | upheap (ANHE *heap, int k) |
|
|
1126 | { |
|
|
1127 | ANHE he = heap [k]; |
|
|
1128 | |
|
|
1129 | for (;;) |
|
|
1130 | { |
|
|
1131 | int p = HPARENT (k); |
|
|
1132 | |
|
|
1133 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
1134 | break; |
|
|
1135 | |
650 | heap [k] = heap [p]; |
1136 | heap [k] = heap [p]; |
651 | ((W)heap [k])->active = k + 1; |
1137 | ev_active (ANHE_w (heap [k])) = k; |
652 | k = p; |
1138 | k = p; |
653 | } |
1139 | } |
654 | |
1140 | |
655 | heap [k] = w; |
1141 | heap [k] = he; |
656 | ((W)heap [k])->active = k + 1; |
1142 | ev_active (ANHE_w (he)) = k; |
657 | |
|
|
658 | } |
1143 | } |
659 | |
1144 | |
660 | void inline_speed |
1145 | /* move an element suitably so it is in a correct place */ |
661 | downheap (WT *heap, int N, int k) |
1146 | inline_size void |
662 | { |
|
|
663 | WT w = heap [k]; |
|
|
664 | |
|
|
665 | for (;;) |
|
|
666 | { |
|
|
667 | int c = (k << 1) + 1; |
|
|
668 | |
|
|
669 | if (c >= N) |
|
|
670 | break; |
|
|
671 | |
|
|
672 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
673 | ? 1 : 0; |
|
|
674 | |
|
|
675 | if (w->at <= heap [c]->at) |
|
|
676 | break; |
|
|
677 | |
|
|
678 | heap [k] = heap [c]; |
|
|
679 | ((W)heap [k])->active = k + 1; |
|
|
680 | |
|
|
681 | k = c; |
|
|
682 | } |
|
|
683 | |
|
|
684 | heap [k] = w; |
|
|
685 | ((W)heap [k])->active = k + 1; |
|
|
686 | } |
|
|
687 | |
|
|
688 | void inline_size |
|
|
689 | adjustheap (WT *heap, int N, int k) |
1147 | adjustheap (ANHE *heap, int N, int k) |
690 | { |
1148 | { |
|
|
1149 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
691 | upheap (heap, k); |
1150 | upheap (heap, k); |
|
|
1151 | else |
692 | downheap (heap, N, k); |
1152 | downheap (heap, N, k); |
|
|
1153 | } |
|
|
1154 | |
|
|
1155 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
1156 | inline_size void |
|
|
1157 | reheap (ANHE *heap, int N) |
|
|
1158 | { |
|
|
1159 | int i; |
|
|
1160 | |
|
|
1161 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
1162 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
1163 | for (i = 0; i < N; ++i) |
|
|
1164 | upheap (heap, i + HEAP0); |
693 | } |
1165 | } |
694 | |
1166 | |
695 | /*****************************************************************************/ |
1167 | /*****************************************************************************/ |
696 | |
1168 | |
|
|
1169 | /* associate signal watchers to a signal signal */ |
697 | typedef struct |
1170 | typedef struct |
698 | { |
1171 | { |
|
|
1172 | EV_ATOMIC_T pending; |
|
|
1173 | #if EV_MULTIPLICITY |
|
|
1174 | EV_P; |
|
|
1175 | #endif |
699 | WL head; |
1176 | WL head; |
700 | sig_atomic_t volatile gotsig; |
|
|
701 | } ANSIG; |
1177 | } ANSIG; |
702 | |
1178 | |
703 | static ANSIG *signals; |
1179 | static ANSIG signals [EV_NSIG - 1]; |
704 | static int signalmax; |
|
|
705 | |
1180 | |
706 | static int sigpipe [2]; |
1181 | /*****************************************************************************/ |
707 | static sig_atomic_t volatile gotsig; |
|
|
708 | static ev_io sigev; |
|
|
709 | |
1182 | |
710 | void inline_size |
1183 | /* used to prepare libev internal fd's */ |
711 | signals_init (ANSIG *base, int count) |
1184 | /* this is not fork-safe */ |
712 | { |
1185 | inline_speed void |
713 | while (count--) |
|
|
714 | { |
|
|
715 | base->head = 0; |
|
|
716 | base->gotsig = 0; |
|
|
717 | |
|
|
718 | ++base; |
|
|
719 | } |
|
|
720 | } |
|
|
721 | |
|
|
722 | static void |
|
|
723 | sighandler (int signum) |
|
|
724 | { |
|
|
725 | #if _WIN32 |
|
|
726 | signal (signum, sighandler); |
|
|
727 | #endif |
|
|
728 | |
|
|
729 | signals [signum - 1].gotsig = 1; |
|
|
730 | |
|
|
731 | if (!gotsig) |
|
|
732 | { |
|
|
733 | int old_errno = errno; |
|
|
734 | gotsig = 1; |
|
|
735 | write (sigpipe [1], &signum, 1); |
|
|
736 | errno = old_errno; |
|
|
737 | } |
|
|
738 | } |
|
|
739 | |
|
|
740 | void noinline |
|
|
741 | ev_feed_signal_event (EV_P_ int signum) |
|
|
742 | { |
|
|
743 | WL w; |
|
|
744 | |
|
|
745 | #if EV_MULTIPLICITY |
|
|
746 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
747 | #endif |
|
|
748 | |
|
|
749 | --signum; |
|
|
750 | |
|
|
751 | if (signum < 0 || signum >= signalmax) |
|
|
752 | return; |
|
|
753 | |
|
|
754 | signals [signum].gotsig = 0; |
|
|
755 | |
|
|
756 | for (w = signals [signum].head; w; w = w->next) |
|
|
757 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
758 | } |
|
|
759 | |
|
|
760 | static void |
|
|
761 | sigcb (EV_P_ ev_io *iow, int revents) |
|
|
762 | { |
|
|
763 | int signum; |
|
|
764 | |
|
|
765 | read (sigpipe [0], &revents, 1); |
|
|
766 | gotsig = 0; |
|
|
767 | |
|
|
768 | for (signum = signalmax; signum--; ) |
|
|
769 | if (signals [signum].gotsig) |
|
|
770 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
771 | } |
|
|
772 | |
|
|
773 | void inline_speed |
|
|
774 | fd_intern (int fd) |
1186 | fd_intern (int fd) |
775 | { |
1187 | { |
776 | #ifdef _WIN32 |
1188 | #ifdef _WIN32 |
777 | int arg = 1; |
1189 | unsigned long arg = 1; |
778 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
1190 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
779 | #else |
1191 | #else |
780 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
1192 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
781 | fcntl (fd, F_SETFL, O_NONBLOCK); |
1193 | fcntl (fd, F_SETFL, O_NONBLOCK); |
782 | #endif |
1194 | #endif |
783 | } |
1195 | } |
784 | |
1196 | |
785 | static void noinline |
1197 | static void noinline |
786 | siginit (EV_P) |
1198 | evpipe_init (EV_P) |
787 | { |
1199 | { |
|
|
1200 | if (!ev_is_active (&pipe_w)) |
|
|
1201 | { |
|
|
1202 | #if EV_USE_EVENTFD |
|
|
1203 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1204 | if (evfd < 0 && errno == EINVAL) |
|
|
1205 | evfd = eventfd (0, 0); |
|
|
1206 | |
|
|
1207 | if (evfd >= 0) |
|
|
1208 | { |
|
|
1209 | evpipe [0] = -1; |
|
|
1210 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
|
|
1211 | ev_io_set (&pipe_w, evfd, EV_READ); |
|
|
1212 | } |
|
|
1213 | else |
|
|
1214 | #endif |
|
|
1215 | { |
|
|
1216 | while (pipe (evpipe)) |
|
|
1217 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
1218 | |
788 | fd_intern (sigpipe [0]); |
1219 | fd_intern (evpipe [0]); |
789 | fd_intern (sigpipe [1]); |
1220 | fd_intern (evpipe [1]); |
|
|
1221 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
|
|
1222 | } |
790 | |
1223 | |
791 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
792 | ev_io_start (EV_A_ &sigev); |
1224 | ev_io_start (EV_A_ &pipe_w); |
793 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1225 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1226 | } |
|
|
1227 | } |
|
|
1228 | |
|
|
1229 | inline_size void |
|
|
1230 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1231 | { |
|
|
1232 | if (!*flag) |
|
|
1233 | { |
|
|
1234 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1235 | |
|
|
1236 | *flag = 1; |
|
|
1237 | |
|
|
1238 | #if EV_USE_EVENTFD |
|
|
1239 | if (evfd >= 0) |
|
|
1240 | { |
|
|
1241 | uint64_t counter = 1; |
|
|
1242 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1243 | } |
|
|
1244 | else |
|
|
1245 | #endif |
|
|
1246 | write (evpipe [1], &old_errno, 1); |
|
|
1247 | |
|
|
1248 | errno = old_errno; |
|
|
1249 | } |
|
|
1250 | } |
|
|
1251 | |
|
|
1252 | /* called whenever the libev signal pipe */ |
|
|
1253 | /* got some events (signal, async) */ |
|
|
1254 | static void |
|
|
1255 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
1256 | { |
|
|
1257 | int i; |
|
|
1258 | |
|
|
1259 | #if EV_USE_EVENTFD |
|
|
1260 | if (evfd >= 0) |
|
|
1261 | { |
|
|
1262 | uint64_t counter; |
|
|
1263 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1264 | } |
|
|
1265 | else |
|
|
1266 | #endif |
|
|
1267 | { |
|
|
1268 | char dummy; |
|
|
1269 | read (evpipe [0], &dummy, 1); |
|
|
1270 | } |
|
|
1271 | |
|
|
1272 | if (sig_pending) |
|
|
1273 | { |
|
|
1274 | sig_pending = 0; |
|
|
1275 | |
|
|
1276 | for (i = EV_NSIG - 1; i--; ) |
|
|
1277 | if (expect_false (signals [i].pending)) |
|
|
1278 | ev_feed_signal_event (EV_A_ i + 1); |
|
|
1279 | } |
|
|
1280 | |
|
|
1281 | #if EV_ASYNC_ENABLE |
|
|
1282 | if (async_pending) |
|
|
1283 | { |
|
|
1284 | async_pending = 0; |
|
|
1285 | |
|
|
1286 | for (i = asynccnt; i--; ) |
|
|
1287 | if (asyncs [i]->sent) |
|
|
1288 | { |
|
|
1289 | asyncs [i]->sent = 0; |
|
|
1290 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
1291 | } |
|
|
1292 | } |
|
|
1293 | #endif |
794 | } |
1294 | } |
795 | |
1295 | |
796 | /*****************************************************************************/ |
1296 | /*****************************************************************************/ |
797 | |
1297 | |
|
|
1298 | static void |
|
|
1299 | ev_sighandler (int signum) |
|
|
1300 | { |
|
|
1301 | #if EV_MULTIPLICITY |
|
|
1302 | EV_P = signals [signum - 1].loop; |
|
|
1303 | #endif |
|
|
1304 | |
|
|
1305 | #ifdef _WIN32 |
|
|
1306 | signal (signum, ev_sighandler); |
|
|
1307 | #endif |
|
|
1308 | |
|
|
1309 | signals [signum - 1].pending = 1; |
|
|
1310 | evpipe_write (EV_A_ &sig_pending); |
|
|
1311 | } |
|
|
1312 | |
|
|
1313 | void noinline |
|
|
1314 | ev_feed_signal_event (EV_P_ int signum) |
|
|
1315 | { |
|
|
1316 | WL w; |
|
|
1317 | |
|
|
1318 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1319 | return; |
|
|
1320 | |
|
|
1321 | --signum; |
|
|
1322 | |
|
|
1323 | #if EV_MULTIPLICITY |
|
|
1324 | /* it is permissible to try to feed a signal to the wrong loop */ |
|
|
1325 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
|
|
1326 | |
|
|
1327 | if (expect_false (signals [signum].loop != EV_A)) |
|
|
1328 | return; |
|
|
1329 | #endif |
|
|
1330 | |
|
|
1331 | signals [signum].pending = 0; |
|
|
1332 | |
|
|
1333 | for (w = signals [signum].head; w; w = w->next) |
|
|
1334 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
1335 | } |
|
|
1336 | |
|
|
1337 | #if EV_USE_SIGNALFD |
|
|
1338 | static void |
|
|
1339 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1340 | { |
|
|
1341 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1342 | |
|
|
1343 | for (;;) |
|
|
1344 | { |
|
|
1345 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1346 | |
|
|
1347 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1348 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1349 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1350 | |
|
|
1351 | if (res < (ssize_t)sizeof (si)) |
|
|
1352 | break; |
|
|
1353 | } |
|
|
1354 | } |
|
|
1355 | #endif |
|
|
1356 | |
|
|
1357 | /*****************************************************************************/ |
|
|
1358 | |
798 | static ev_child *childs [EV_PID_HASHSIZE]; |
1359 | static WL childs [EV_PID_HASHSIZE]; |
799 | |
1360 | |
800 | #ifndef _WIN32 |
1361 | #ifndef _WIN32 |
801 | |
1362 | |
802 | static ev_signal childev; |
1363 | static ev_signal childev; |
803 | |
1364 | |
804 | void inline_speed |
1365 | #ifndef WIFCONTINUED |
|
|
1366 | # define WIFCONTINUED(status) 0 |
|
|
1367 | #endif |
|
|
1368 | |
|
|
1369 | /* handle a single child status event */ |
|
|
1370 | inline_speed void |
805 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
1371 | child_reap (EV_P_ int chain, int pid, int status) |
806 | { |
1372 | { |
807 | ev_child *w; |
1373 | ev_child *w; |
|
|
1374 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
808 | |
1375 | |
809 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1376 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1377 | { |
810 | if (w->pid == pid || !w->pid) |
1378 | if ((w->pid == pid || !w->pid) |
|
|
1379 | && (!traced || (w->flags & 1))) |
811 | { |
1380 | { |
812 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
1381 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
813 | w->rpid = pid; |
1382 | w->rpid = pid; |
814 | w->rstatus = status; |
1383 | w->rstatus = status; |
815 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
1384 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
816 | } |
1385 | } |
|
|
1386 | } |
817 | } |
1387 | } |
818 | |
1388 | |
819 | #ifndef WCONTINUED |
1389 | #ifndef WCONTINUED |
820 | # define WCONTINUED 0 |
1390 | # define WCONTINUED 0 |
821 | #endif |
1391 | #endif |
822 | |
1392 | |
|
|
1393 | /* called on sigchld etc., calls waitpid */ |
823 | static void |
1394 | static void |
824 | childcb (EV_P_ ev_signal *sw, int revents) |
1395 | childcb (EV_P_ ev_signal *sw, int revents) |
825 | { |
1396 | { |
826 | int pid, status; |
1397 | int pid, status; |
827 | |
1398 | |
… | |
… | |
830 | if (!WCONTINUED |
1401 | if (!WCONTINUED |
831 | || errno != EINVAL |
1402 | || errno != EINVAL |
832 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
1403 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
833 | return; |
1404 | return; |
834 | |
1405 | |
835 | /* make sure we are called again until all childs have been reaped */ |
1406 | /* make sure we are called again until all children have been reaped */ |
836 | /* we need to do it this way so that the callback gets called before we continue */ |
1407 | /* we need to do it this way so that the callback gets called before we continue */ |
837 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1408 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
838 | |
1409 | |
839 | child_reap (EV_A_ sw, pid, pid, status); |
1410 | child_reap (EV_A_ pid, pid, status); |
840 | if (EV_PID_HASHSIZE > 1) |
1411 | if (EV_PID_HASHSIZE > 1) |
841 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1412 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
842 | } |
1413 | } |
843 | |
1414 | |
844 | #endif |
1415 | #endif |
845 | |
1416 | |
846 | /*****************************************************************************/ |
1417 | /*****************************************************************************/ |
… | |
… | |
908 | /* kqueue is borked on everything but netbsd apparently */ |
1479 | /* kqueue is borked on everything but netbsd apparently */ |
909 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
1480 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
910 | flags &= ~EVBACKEND_KQUEUE; |
1481 | flags &= ~EVBACKEND_KQUEUE; |
911 | #endif |
1482 | #endif |
912 | #ifdef __APPLE__ |
1483 | #ifdef __APPLE__ |
913 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
1484 | /* only select works correctly on that "unix-certified" platform */ |
914 | flags &= ~EVBACKEND_POLL; |
1485 | flags &= ~EVBACKEND_KQUEUE; /* horribly broken, even for sockets */ |
|
|
1486 | flags &= ~EVBACKEND_POLL; /* poll is based on kqueue from 10.5 onwards */ |
915 | #endif |
1487 | #endif |
916 | |
1488 | |
917 | return flags; |
1489 | return flags; |
918 | } |
1490 | } |
919 | |
1491 | |
920 | unsigned int |
1492 | unsigned int |
921 | ev_embeddable_backends (void) |
1493 | ev_embeddable_backends (void) |
922 | { |
1494 | { |
923 | return EVBACKEND_EPOLL |
1495 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
924 | | EVBACKEND_KQUEUE |
1496 | |
925 | | EVBACKEND_PORT; |
1497 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1498 | /* please fix it and tell me how to detect the fix */ |
|
|
1499 | flags &= ~EVBACKEND_EPOLL; |
|
|
1500 | |
|
|
1501 | return flags; |
926 | } |
1502 | } |
927 | |
1503 | |
928 | unsigned int |
1504 | unsigned int |
929 | ev_backend (EV_P) |
1505 | ev_backend (EV_P) |
930 | { |
1506 | { |
931 | return backend; |
1507 | return backend; |
932 | } |
1508 | } |
933 | |
1509 | |
|
|
1510 | #if EV_MINIMAL < 2 |
934 | unsigned int |
1511 | unsigned int |
935 | ev_loop_count (EV_P) |
1512 | ev_loop_count (EV_P) |
936 | { |
1513 | { |
937 | return loop_count; |
1514 | return loop_count; |
938 | } |
1515 | } |
939 | |
1516 | |
|
|
1517 | unsigned int |
|
|
1518 | ev_loop_depth (EV_P) |
|
|
1519 | { |
|
|
1520 | return loop_depth; |
|
|
1521 | } |
|
|
1522 | |
|
|
1523 | void |
|
|
1524 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1525 | { |
|
|
1526 | io_blocktime = interval; |
|
|
1527 | } |
|
|
1528 | |
|
|
1529 | void |
|
|
1530 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1531 | { |
|
|
1532 | timeout_blocktime = interval; |
|
|
1533 | } |
|
|
1534 | |
|
|
1535 | void |
|
|
1536 | ev_set_userdata (EV_P_ void *data) |
|
|
1537 | { |
|
|
1538 | userdata = data; |
|
|
1539 | } |
|
|
1540 | |
|
|
1541 | void * |
|
|
1542 | ev_userdata (EV_P) |
|
|
1543 | { |
|
|
1544 | return userdata; |
|
|
1545 | } |
|
|
1546 | |
|
|
1547 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1548 | { |
|
|
1549 | invoke_cb = invoke_pending_cb; |
|
|
1550 | } |
|
|
1551 | |
|
|
1552 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1553 | { |
|
|
1554 | release_cb = release; |
|
|
1555 | acquire_cb = acquire; |
|
|
1556 | } |
|
|
1557 | #endif |
|
|
1558 | |
|
|
1559 | /* initialise a loop structure, must be zero-initialised */ |
940 | static void noinline |
1560 | static void noinline |
941 | loop_init (EV_P_ unsigned int flags) |
1561 | loop_init (EV_P_ unsigned int flags) |
942 | { |
1562 | { |
943 | if (!backend) |
1563 | if (!backend) |
944 | { |
1564 | { |
|
|
1565 | #if EV_USE_REALTIME |
|
|
1566 | if (!have_realtime) |
|
|
1567 | { |
|
|
1568 | struct timespec ts; |
|
|
1569 | |
|
|
1570 | if (!clock_gettime (CLOCK_REALTIME, &ts)) |
|
|
1571 | have_realtime = 1; |
|
|
1572 | } |
|
|
1573 | #endif |
|
|
1574 | |
945 | #if EV_USE_MONOTONIC |
1575 | #if EV_USE_MONOTONIC |
|
|
1576 | if (!have_monotonic) |
946 | { |
1577 | { |
947 | struct timespec ts; |
1578 | struct timespec ts; |
|
|
1579 | |
948 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1580 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
949 | have_monotonic = 1; |
1581 | have_monotonic = 1; |
950 | } |
1582 | } |
951 | #endif |
1583 | #endif |
952 | |
|
|
953 | ev_rt_now = ev_time (); |
|
|
954 | mn_now = get_clock (); |
|
|
955 | now_floor = mn_now; |
|
|
956 | rtmn_diff = ev_rt_now - mn_now; |
|
|
957 | |
1584 | |
958 | /* pid check not overridable via env */ |
1585 | /* pid check not overridable via env */ |
959 | #ifndef _WIN32 |
1586 | #ifndef _WIN32 |
960 | if (flags & EVFLAG_FORKCHECK) |
1587 | if (flags & EVFLAG_FORKCHECK) |
961 | curpid = getpid (); |
1588 | curpid = getpid (); |
… | |
… | |
964 | if (!(flags & EVFLAG_NOENV) |
1591 | if (!(flags & EVFLAG_NOENV) |
965 | && !enable_secure () |
1592 | && !enable_secure () |
966 | && getenv ("LIBEV_FLAGS")) |
1593 | && getenv ("LIBEV_FLAGS")) |
967 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1594 | flags = atoi (getenv ("LIBEV_FLAGS")); |
968 | |
1595 | |
|
|
1596 | ev_rt_now = ev_time (); |
|
|
1597 | mn_now = get_clock (); |
|
|
1598 | now_floor = mn_now; |
|
|
1599 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1600 | #if EV_MINIMAL < 2 |
|
|
1601 | invoke_cb = ev_invoke_pending; |
|
|
1602 | #endif |
|
|
1603 | |
|
|
1604 | io_blocktime = 0.; |
|
|
1605 | timeout_blocktime = 0.; |
|
|
1606 | backend = 0; |
|
|
1607 | backend_fd = -1; |
|
|
1608 | sig_pending = 0; |
|
|
1609 | #if EV_ASYNC_ENABLE |
|
|
1610 | async_pending = 0; |
|
|
1611 | #endif |
|
|
1612 | #if EV_USE_INOTIFY |
|
|
1613 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
|
|
1614 | #endif |
|
|
1615 | #if EV_USE_SIGNALFD |
|
|
1616 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
|
|
1617 | #endif |
|
|
1618 | |
969 | if (!(flags & 0x0000ffffUL)) |
1619 | if (!(flags & 0x0000ffffU)) |
970 | flags |= ev_recommended_backends (); |
1620 | flags |= ev_recommended_backends (); |
971 | |
|
|
972 | backend = 0; |
|
|
973 | backend_fd = -1; |
|
|
974 | #if EV_USE_INOTIFY |
|
|
975 | fs_fd = -2; |
|
|
976 | #endif |
|
|
977 | |
1621 | |
978 | #if EV_USE_PORT |
1622 | #if EV_USE_PORT |
979 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1623 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
980 | #endif |
1624 | #endif |
981 | #if EV_USE_KQUEUE |
1625 | #if EV_USE_KQUEUE |
… | |
… | |
989 | #endif |
1633 | #endif |
990 | #if EV_USE_SELECT |
1634 | #if EV_USE_SELECT |
991 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1635 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
992 | #endif |
1636 | #endif |
993 | |
1637 | |
|
|
1638 | ev_prepare_init (&pending_w, pendingcb); |
|
|
1639 | |
994 | ev_init (&sigev, sigcb); |
1640 | ev_init (&pipe_w, pipecb); |
995 | ev_set_priority (&sigev, EV_MAXPRI); |
1641 | ev_set_priority (&pipe_w, EV_MAXPRI); |
996 | } |
1642 | } |
997 | } |
1643 | } |
998 | |
1644 | |
|
|
1645 | /* free up a loop structure */ |
999 | static void noinline |
1646 | static void noinline |
1000 | loop_destroy (EV_P) |
1647 | loop_destroy (EV_P) |
1001 | { |
1648 | { |
1002 | int i; |
1649 | int i; |
|
|
1650 | |
|
|
1651 | if (ev_is_active (&pipe_w)) |
|
|
1652 | { |
|
|
1653 | /*ev_ref (EV_A);*/ |
|
|
1654 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
|
|
1655 | |
|
|
1656 | #if EV_USE_EVENTFD |
|
|
1657 | if (evfd >= 0) |
|
|
1658 | close (evfd); |
|
|
1659 | #endif |
|
|
1660 | |
|
|
1661 | if (evpipe [0] >= 0) |
|
|
1662 | { |
|
|
1663 | EV_WIN32_CLOSE_FD (evpipe [0]); |
|
|
1664 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
1665 | } |
|
|
1666 | } |
|
|
1667 | |
|
|
1668 | #if EV_USE_SIGNALFD |
|
|
1669 | if (ev_is_active (&sigfd_w)) |
|
|
1670 | close (sigfd); |
|
|
1671 | #endif |
1003 | |
1672 | |
1004 | #if EV_USE_INOTIFY |
1673 | #if EV_USE_INOTIFY |
1005 | if (fs_fd >= 0) |
1674 | if (fs_fd >= 0) |
1006 | close (fs_fd); |
1675 | close (fs_fd); |
1007 | #endif |
1676 | #endif |
… | |
… | |
1031 | #if EV_IDLE_ENABLE |
1700 | #if EV_IDLE_ENABLE |
1032 | array_free (idle, [i]); |
1701 | array_free (idle, [i]); |
1033 | #endif |
1702 | #endif |
1034 | } |
1703 | } |
1035 | |
1704 | |
|
|
1705 | ev_free (anfds); anfds = 0; anfdmax = 0; |
|
|
1706 | |
1036 | /* have to use the microsoft-never-gets-it-right macro */ |
1707 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1708 | array_free (rfeed, EMPTY); |
1037 | array_free (fdchange, EMPTY); |
1709 | array_free (fdchange, EMPTY); |
1038 | array_free (timer, EMPTY); |
1710 | array_free (timer, EMPTY); |
1039 | #if EV_PERIODIC_ENABLE |
1711 | #if EV_PERIODIC_ENABLE |
1040 | array_free (periodic, EMPTY); |
1712 | array_free (periodic, EMPTY); |
1041 | #endif |
1713 | #endif |
|
|
1714 | #if EV_FORK_ENABLE |
|
|
1715 | array_free (fork, EMPTY); |
|
|
1716 | #endif |
1042 | array_free (prepare, EMPTY); |
1717 | array_free (prepare, EMPTY); |
1043 | array_free (check, EMPTY); |
1718 | array_free (check, EMPTY); |
|
|
1719 | #if EV_ASYNC_ENABLE |
|
|
1720 | array_free (async, EMPTY); |
|
|
1721 | #endif |
1044 | |
1722 | |
1045 | backend = 0; |
1723 | backend = 0; |
1046 | } |
1724 | } |
1047 | |
1725 | |
|
|
1726 | #if EV_USE_INOTIFY |
1048 | void inline_size infy_fork (EV_P); |
1727 | inline_size void infy_fork (EV_P); |
|
|
1728 | #endif |
1049 | |
1729 | |
1050 | void inline_size |
1730 | inline_size void |
1051 | loop_fork (EV_P) |
1731 | loop_fork (EV_P) |
1052 | { |
1732 | { |
1053 | #if EV_USE_PORT |
1733 | #if EV_USE_PORT |
1054 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1734 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1055 | #endif |
1735 | #endif |
… | |
… | |
1061 | #endif |
1741 | #endif |
1062 | #if EV_USE_INOTIFY |
1742 | #if EV_USE_INOTIFY |
1063 | infy_fork (EV_A); |
1743 | infy_fork (EV_A); |
1064 | #endif |
1744 | #endif |
1065 | |
1745 | |
1066 | if (ev_is_active (&sigev)) |
1746 | if (ev_is_active (&pipe_w)) |
1067 | { |
1747 | { |
1068 | /* default loop */ |
1748 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1749 | /* while we modify the fd vars */ |
|
|
1750 | sig_pending = 1; |
|
|
1751 | #if EV_ASYNC_ENABLE |
|
|
1752 | async_pending = 1; |
|
|
1753 | #endif |
1069 | |
1754 | |
1070 | ev_ref (EV_A); |
1755 | ev_ref (EV_A); |
1071 | ev_io_stop (EV_A_ &sigev); |
1756 | ev_io_stop (EV_A_ &pipe_w); |
1072 | close (sigpipe [0]); |
|
|
1073 | close (sigpipe [1]); |
|
|
1074 | |
1757 | |
1075 | while (pipe (sigpipe)) |
1758 | #if EV_USE_EVENTFD |
1076 | syserr ("(libev) error creating pipe"); |
1759 | if (evfd >= 0) |
|
|
1760 | close (evfd); |
|
|
1761 | #endif |
1077 | |
1762 | |
|
|
1763 | if (evpipe [0] >= 0) |
|
|
1764 | { |
|
|
1765 | EV_WIN32_CLOSE_FD (evpipe [0]); |
|
|
1766 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
1767 | } |
|
|
1768 | |
1078 | siginit (EV_A); |
1769 | evpipe_init (EV_A); |
|
|
1770 | /* now iterate over everything, in case we missed something */ |
|
|
1771 | pipecb (EV_A_ &pipe_w, EV_READ); |
1079 | } |
1772 | } |
1080 | |
1773 | |
1081 | postfork = 0; |
1774 | postfork = 0; |
1082 | } |
1775 | } |
1083 | |
1776 | |
1084 | #if EV_MULTIPLICITY |
1777 | #if EV_MULTIPLICITY |
|
|
1778 | |
1085 | struct ev_loop * |
1779 | struct ev_loop * |
1086 | ev_loop_new (unsigned int flags) |
1780 | ev_loop_new (unsigned int flags) |
1087 | { |
1781 | { |
1088 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1782 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1089 | |
1783 | |
1090 | memset (loop, 0, sizeof (struct ev_loop)); |
1784 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1091 | |
|
|
1092 | loop_init (EV_A_ flags); |
1785 | loop_init (EV_A_ flags); |
1093 | |
1786 | |
1094 | if (ev_backend (EV_A)) |
1787 | if (ev_backend (EV_A)) |
1095 | return loop; |
1788 | return EV_A; |
1096 | |
1789 | |
1097 | return 0; |
1790 | return 0; |
1098 | } |
1791 | } |
1099 | |
1792 | |
1100 | void |
1793 | void |
… | |
… | |
1105 | } |
1798 | } |
1106 | |
1799 | |
1107 | void |
1800 | void |
1108 | ev_loop_fork (EV_P) |
1801 | ev_loop_fork (EV_P) |
1109 | { |
1802 | { |
1110 | postfork = 1; |
1803 | postfork = 1; /* must be in line with ev_default_fork */ |
1111 | } |
1804 | } |
|
|
1805 | #endif /* multiplicity */ |
1112 | |
1806 | |
|
|
1807 | #if EV_VERIFY |
|
|
1808 | static void noinline |
|
|
1809 | verify_watcher (EV_P_ W w) |
|
|
1810 | { |
|
|
1811 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1812 | |
|
|
1813 | if (w->pending) |
|
|
1814 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1815 | } |
|
|
1816 | |
|
|
1817 | static void noinline |
|
|
1818 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1819 | { |
|
|
1820 | int i; |
|
|
1821 | |
|
|
1822 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1823 | { |
|
|
1824 | assert (("libev: active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1825 | assert (("libev: heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1826 | assert (("libev: heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1827 | |
|
|
1828 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1829 | } |
|
|
1830 | } |
|
|
1831 | |
|
|
1832 | static void noinline |
|
|
1833 | array_verify (EV_P_ W *ws, int cnt) |
|
|
1834 | { |
|
|
1835 | while (cnt--) |
|
|
1836 | { |
|
|
1837 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1838 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1839 | } |
|
|
1840 | } |
|
|
1841 | #endif |
|
|
1842 | |
|
|
1843 | #if EV_MINIMAL < 2 |
|
|
1844 | void |
|
|
1845 | ev_loop_verify (EV_P) |
|
|
1846 | { |
|
|
1847 | #if EV_VERIFY |
|
|
1848 | int i; |
|
|
1849 | WL w; |
|
|
1850 | |
|
|
1851 | assert (activecnt >= -1); |
|
|
1852 | |
|
|
1853 | assert (fdchangemax >= fdchangecnt); |
|
|
1854 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1855 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1856 | |
|
|
1857 | assert (anfdmax >= 0); |
|
|
1858 | for (i = 0; i < anfdmax; ++i) |
|
|
1859 | for (w = anfds [i].head; w; w = w->next) |
|
|
1860 | { |
|
|
1861 | verify_watcher (EV_A_ (W)w); |
|
|
1862 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1863 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1864 | } |
|
|
1865 | |
|
|
1866 | assert (timermax >= timercnt); |
|
|
1867 | verify_heap (EV_A_ timers, timercnt); |
|
|
1868 | |
|
|
1869 | #if EV_PERIODIC_ENABLE |
|
|
1870 | assert (periodicmax >= periodiccnt); |
|
|
1871 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
1872 | #endif |
|
|
1873 | |
|
|
1874 | for (i = NUMPRI; i--; ) |
|
|
1875 | { |
|
|
1876 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
1877 | #if EV_IDLE_ENABLE |
|
|
1878 | assert (idleall >= 0); |
|
|
1879 | assert (idlemax [i] >= idlecnt [i]); |
|
|
1880 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
1881 | #endif |
|
|
1882 | } |
|
|
1883 | |
|
|
1884 | #if EV_FORK_ENABLE |
|
|
1885 | assert (forkmax >= forkcnt); |
|
|
1886 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
1887 | #endif |
|
|
1888 | |
|
|
1889 | #if EV_ASYNC_ENABLE |
|
|
1890 | assert (asyncmax >= asynccnt); |
|
|
1891 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
1892 | #endif |
|
|
1893 | |
|
|
1894 | assert (preparemax >= preparecnt); |
|
|
1895 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1896 | |
|
|
1897 | assert (checkmax >= checkcnt); |
|
|
1898 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1899 | |
|
|
1900 | # if 0 |
|
|
1901 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1902 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
|
|
1903 | # endif |
|
|
1904 | #endif |
|
|
1905 | } |
1113 | #endif |
1906 | #endif |
1114 | |
1907 | |
1115 | #if EV_MULTIPLICITY |
1908 | #if EV_MULTIPLICITY |
1116 | struct ev_loop * |
1909 | struct ev_loop * |
1117 | ev_default_loop_init (unsigned int flags) |
1910 | ev_default_loop_init (unsigned int flags) |
1118 | #else |
1911 | #else |
1119 | int |
1912 | int |
1120 | ev_default_loop (unsigned int flags) |
1913 | ev_default_loop (unsigned int flags) |
1121 | #endif |
1914 | #endif |
1122 | { |
1915 | { |
1123 | if (sigpipe [0] == sigpipe [1]) |
|
|
1124 | if (pipe (sigpipe)) |
|
|
1125 | return 0; |
|
|
1126 | |
|
|
1127 | if (!ev_default_loop_ptr) |
1916 | if (!ev_default_loop_ptr) |
1128 | { |
1917 | { |
1129 | #if EV_MULTIPLICITY |
1918 | #if EV_MULTIPLICITY |
1130 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1919 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1131 | #else |
1920 | #else |
1132 | ev_default_loop_ptr = 1; |
1921 | ev_default_loop_ptr = 1; |
1133 | #endif |
1922 | #endif |
1134 | |
1923 | |
1135 | loop_init (EV_A_ flags); |
1924 | loop_init (EV_A_ flags); |
1136 | |
1925 | |
1137 | if (ev_backend (EV_A)) |
1926 | if (ev_backend (EV_A)) |
1138 | { |
1927 | { |
1139 | siginit (EV_A); |
|
|
1140 | |
|
|
1141 | #ifndef _WIN32 |
1928 | #ifndef _WIN32 |
1142 | ev_signal_init (&childev, childcb, SIGCHLD); |
1929 | ev_signal_init (&childev, childcb, SIGCHLD); |
1143 | ev_set_priority (&childev, EV_MAXPRI); |
1930 | ev_set_priority (&childev, EV_MAXPRI); |
1144 | ev_signal_start (EV_A_ &childev); |
1931 | ev_signal_start (EV_A_ &childev); |
1145 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1932 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
… | |
… | |
1154 | |
1941 | |
1155 | void |
1942 | void |
1156 | ev_default_destroy (void) |
1943 | ev_default_destroy (void) |
1157 | { |
1944 | { |
1158 | #if EV_MULTIPLICITY |
1945 | #if EV_MULTIPLICITY |
1159 | struct ev_loop *loop = ev_default_loop_ptr; |
1946 | EV_P = ev_default_loop_ptr; |
1160 | #endif |
1947 | #endif |
|
|
1948 | |
|
|
1949 | ev_default_loop_ptr = 0; |
1161 | |
1950 | |
1162 | #ifndef _WIN32 |
1951 | #ifndef _WIN32 |
1163 | ev_ref (EV_A); /* child watcher */ |
1952 | ev_ref (EV_A); /* child watcher */ |
1164 | ev_signal_stop (EV_A_ &childev); |
1953 | ev_signal_stop (EV_A_ &childev); |
1165 | #endif |
1954 | #endif |
1166 | |
1955 | |
1167 | ev_ref (EV_A); /* signal watcher */ |
|
|
1168 | ev_io_stop (EV_A_ &sigev); |
|
|
1169 | |
|
|
1170 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1171 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1172 | |
|
|
1173 | loop_destroy (EV_A); |
1956 | loop_destroy (EV_A); |
1174 | } |
1957 | } |
1175 | |
1958 | |
1176 | void |
1959 | void |
1177 | ev_default_fork (void) |
1960 | ev_default_fork (void) |
1178 | { |
1961 | { |
1179 | #if EV_MULTIPLICITY |
1962 | #if EV_MULTIPLICITY |
1180 | struct ev_loop *loop = ev_default_loop_ptr; |
1963 | EV_P = ev_default_loop_ptr; |
1181 | #endif |
1964 | #endif |
1182 | |
1965 | |
1183 | if (backend) |
1966 | postfork = 1; /* must be in line with ev_loop_fork */ |
1184 | postfork = 1; |
|
|
1185 | } |
1967 | } |
1186 | |
1968 | |
1187 | /*****************************************************************************/ |
1969 | /*****************************************************************************/ |
1188 | |
1970 | |
1189 | void |
1971 | void |
1190 | ev_invoke (EV_P_ void *w, int revents) |
1972 | ev_invoke (EV_P_ void *w, int revents) |
1191 | { |
1973 | { |
1192 | EV_CB_INVOKE ((W)w, revents); |
1974 | EV_CB_INVOKE ((W)w, revents); |
1193 | } |
1975 | } |
1194 | |
1976 | |
1195 | void inline_speed |
1977 | unsigned int |
1196 | call_pending (EV_P) |
1978 | ev_pending_count (EV_P) |
|
|
1979 | { |
|
|
1980 | int pri; |
|
|
1981 | unsigned int count = 0; |
|
|
1982 | |
|
|
1983 | for (pri = NUMPRI; pri--; ) |
|
|
1984 | count += pendingcnt [pri]; |
|
|
1985 | |
|
|
1986 | return count; |
|
|
1987 | } |
|
|
1988 | |
|
|
1989 | void noinline |
|
|
1990 | ev_invoke_pending (EV_P) |
1197 | { |
1991 | { |
1198 | int pri; |
1992 | int pri; |
1199 | |
1993 | |
1200 | for (pri = NUMPRI; pri--; ) |
1994 | for (pri = NUMPRI; pri--; ) |
1201 | while (pendingcnt [pri]) |
1995 | while (pendingcnt [pri]) |
1202 | { |
1996 | { |
1203 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1997 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1204 | |
1998 | |
1205 | if (expect_true (p->w)) |
|
|
1206 | { |
|
|
1207 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1999 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
2000 | /* ^ this is no longer true, as pending_w could be here */ |
1208 | |
2001 | |
1209 | p->w->pending = 0; |
2002 | p->w->pending = 0; |
1210 | EV_CB_INVOKE (p->w, p->events); |
2003 | EV_CB_INVOKE (p->w, p->events); |
1211 | } |
2004 | EV_FREQUENT_CHECK; |
1212 | } |
2005 | } |
1213 | } |
2006 | } |
1214 | |
2007 | |
1215 | void inline_size |
|
|
1216 | timers_reify (EV_P) |
|
|
1217 | { |
|
|
1218 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
|
|
1219 | { |
|
|
1220 | ev_timer *w = timers [0]; |
|
|
1221 | |
|
|
1222 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
1223 | |
|
|
1224 | /* first reschedule or stop timer */ |
|
|
1225 | if (w->repeat) |
|
|
1226 | { |
|
|
1227 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1228 | |
|
|
1229 | ((WT)w)->at += w->repeat; |
|
|
1230 | if (((WT)w)->at < mn_now) |
|
|
1231 | ((WT)w)->at = mn_now; |
|
|
1232 | |
|
|
1233 | downheap ((WT *)timers, timercnt, 0); |
|
|
1234 | } |
|
|
1235 | else |
|
|
1236 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1237 | |
|
|
1238 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1239 | } |
|
|
1240 | } |
|
|
1241 | |
|
|
1242 | #if EV_PERIODIC_ENABLE |
|
|
1243 | void inline_size |
|
|
1244 | periodics_reify (EV_P) |
|
|
1245 | { |
|
|
1246 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
|
|
1247 | { |
|
|
1248 | ev_periodic *w = periodics [0]; |
|
|
1249 | |
|
|
1250 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1251 | |
|
|
1252 | /* first reschedule or stop timer */ |
|
|
1253 | if (w->reschedule_cb) |
|
|
1254 | { |
|
|
1255 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
|
|
1256 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1257 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1258 | } |
|
|
1259 | else if (w->interval) |
|
|
1260 | { |
|
|
1261 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1262 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
|
|
1263 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
|
|
1264 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1265 | } |
|
|
1266 | else |
|
|
1267 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1268 | |
|
|
1269 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
|
|
1270 | } |
|
|
1271 | } |
|
|
1272 | |
|
|
1273 | static void noinline |
|
|
1274 | periodics_reschedule (EV_P) |
|
|
1275 | { |
|
|
1276 | int i; |
|
|
1277 | |
|
|
1278 | /* adjust periodics after time jump */ |
|
|
1279 | for (i = 0; i < periodiccnt; ++i) |
|
|
1280 | { |
|
|
1281 | ev_periodic *w = periodics [i]; |
|
|
1282 | |
|
|
1283 | if (w->reschedule_cb) |
|
|
1284 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1285 | else if (w->interval) |
|
|
1286 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1287 | } |
|
|
1288 | |
|
|
1289 | /* now rebuild the heap */ |
|
|
1290 | for (i = periodiccnt >> 1; i--; ) |
|
|
1291 | downheap ((WT *)periodics, periodiccnt, i); |
|
|
1292 | } |
|
|
1293 | #endif |
|
|
1294 | |
|
|
1295 | #if EV_IDLE_ENABLE |
2008 | #if EV_IDLE_ENABLE |
1296 | void inline_size |
2009 | /* make idle watchers pending. this handles the "call-idle */ |
|
|
2010 | /* only when higher priorities are idle" logic */ |
|
|
2011 | inline_size void |
1297 | idle_reify (EV_P) |
2012 | idle_reify (EV_P) |
1298 | { |
2013 | { |
1299 | if (expect_false (idleall)) |
2014 | if (expect_false (idleall)) |
1300 | { |
2015 | { |
1301 | int pri; |
2016 | int pri; |
… | |
… | |
1313 | } |
2028 | } |
1314 | } |
2029 | } |
1315 | } |
2030 | } |
1316 | #endif |
2031 | #endif |
1317 | |
2032 | |
1318 | void inline_speed |
2033 | /* make timers pending */ |
|
|
2034 | inline_size void |
|
|
2035 | timers_reify (EV_P) |
|
|
2036 | { |
|
|
2037 | EV_FREQUENT_CHECK; |
|
|
2038 | |
|
|
2039 | if (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
|
|
2040 | { |
|
|
2041 | do |
|
|
2042 | { |
|
|
2043 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
|
|
2044 | |
|
|
2045 | /*assert (("libev: inactive timer on timer heap detected", ev_is_active (w)));*/ |
|
|
2046 | |
|
|
2047 | /* first reschedule or stop timer */ |
|
|
2048 | if (w->repeat) |
|
|
2049 | { |
|
|
2050 | ev_at (w) += w->repeat; |
|
|
2051 | if (ev_at (w) < mn_now) |
|
|
2052 | ev_at (w) = mn_now; |
|
|
2053 | |
|
|
2054 | assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
2055 | |
|
|
2056 | ANHE_at_cache (timers [HEAP0]); |
|
|
2057 | downheap (timers, timercnt, HEAP0); |
|
|
2058 | } |
|
|
2059 | else |
|
|
2060 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2061 | |
|
|
2062 | EV_FREQUENT_CHECK; |
|
|
2063 | feed_reverse (EV_A_ (W)w); |
|
|
2064 | } |
|
|
2065 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now); |
|
|
2066 | |
|
|
2067 | feed_reverse_done (EV_A_ EV_TIMEOUT); |
|
|
2068 | } |
|
|
2069 | } |
|
|
2070 | |
|
|
2071 | #if EV_PERIODIC_ENABLE |
|
|
2072 | /* make periodics pending */ |
|
|
2073 | inline_size void |
|
|
2074 | periodics_reify (EV_P) |
|
|
2075 | { |
|
|
2076 | EV_FREQUENT_CHECK; |
|
|
2077 | |
|
|
2078 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
|
|
2079 | { |
|
|
2080 | int feed_count = 0; |
|
|
2081 | |
|
|
2082 | do |
|
|
2083 | { |
|
|
2084 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
|
|
2085 | |
|
|
2086 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
2087 | |
|
|
2088 | /* first reschedule or stop timer */ |
|
|
2089 | if (w->reschedule_cb) |
|
|
2090 | { |
|
|
2091 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2092 | |
|
|
2093 | assert (("libev: ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
2094 | |
|
|
2095 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2096 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2097 | } |
|
|
2098 | else if (w->interval) |
|
|
2099 | { |
|
|
2100 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2101 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2102 | /* this might happen because of floating point inexactness */ |
|
|
2103 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2104 | { |
|
|
2105 | ev_at (w) += w->interval; |
|
|
2106 | |
|
|
2107 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2108 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2109 | /* has effectively asked to get triggered more often than possible */ |
|
|
2110 | if (ev_at (w) < ev_rt_now) |
|
|
2111 | ev_at (w) = ev_rt_now; |
|
|
2112 | } |
|
|
2113 | |
|
|
2114 | ANHE_at_cache (periodics [HEAP0]); |
|
|
2115 | downheap (periodics, periodiccnt, HEAP0); |
|
|
2116 | } |
|
|
2117 | else |
|
|
2118 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
2119 | |
|
|
2120 | EV_FREQUENT_CHECK; |
|
|
2121 | feed_reverse (EV_A_ (W)w); |
|
|
2122 | } |
|
|
2123 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now); |
|
|
2124 | |
|
|
2125 | feed_reverse_done (EV_A_ EV_PERIODIC); |
|
|
2126 | } |
|
|
2127 | } |
|
|
2128 | |
|
|
2129 | /* simply recalculate all periodics */ |
|
|
2130 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
|
|
2131 | static void noinline |
|
|
2132 | periodics_reschedule (EV_P) |
|
|
2133 | { |
|
|
2134 | int i; |
|
|
2135 | |
|
|
2136 | /* adjust periodics after time jump */ |
|
|
2137 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
|
|
2138 | { |
|
|
2139 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
|
|
2140 | |
|
|
2141 | if (w->reschedule_cb) |
|
|
2142 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
2143 | else if (w->interval) |
|
|
2144 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2145 | |
|
|
2146 | ANHE_at_cache (periodics [i]); |
|
|
2147 | } |
|
|
2148 | |
|
|
2149 | reheap (periodics, periodiccnt); |
|
|
2150 | } |
|
|
2151 | #endif |
|
|
2152 | |
|
|
2153 | /* adjust all timers by a given offset */ |
|
|
2154 | static void noinline |
|
|
2155 | timers_reschedule (EV_P_ ev_tstamp adjust) |
|
|
2156 | { |
|
|
2157 | int i; |
|
|
2158 | |
|
|
2159 | for (i = 0; i < timercnt; ++i) |
|
|
2160 | { |
|
|
2161 | ANHE *he = timers + i + HEAP0; |
|
|
2162 | ANHE_w (*he)->at += adjust; |
|
|
2163 | ANHE_at_cache (*he); |
|
|
2164 | } |
|
|
2165 | } |
|
|
2166 | |
|
|
2167 | /* fetch new monotonic and realtime times from the kernel */ |
|
|
2168 | /* also detect if there was a timejump, and act accordingly */ |
|
|
2169 | inline_speed void |
1319 | time_update (EV_P_ ev_tstamp max_block) |
2170 | time_update (EV_P_ ev_tstamp max_block) |
1320 | { |
2171 | { |
1321 | int i; |
|
|
1322 | |
|
|
1323 | #if EV_USE_MONOTONIC |
2172 | #if EV_USE_MONOTONIC |
1324 | if (expect_true (have_monotonic)) |
2173 | if (expect_true (have_monotonic)) |
1325 | { |
2174 | { |
|
|
2175 | int i; |
1326 | ev_tstamp odiff = rtmn_diff; |
2176 | ev_tstamp odiff = rtmn_diff; |
1327 | |
2177 | |
1328 | mn_now = get_clock (); |
2178 | mn_now = get_clock (); |
1329 | |
2179 | |
1330 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
2180 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
… | |
… | |
1348 | */ |
2198 | */ |
1349 | for (i = 4; --i; ) |
2199 | for (i = 4; --i; ) |
1350 | { |
2200 | { |
1351 | rtmn_diff = ev_rt_now - mn_now; |
2201 | rtmn_diff = ev_rt_now - mn_now; |
1352 | |
2202 | |
1353 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
2203 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
1354 | return; /* all is well */ |
2204 | return; /* all is well */ |
1355 | |
2205 | |
1356 | ev_rt_now = ev_time (); |
2206 | ev_rt_now = ev_time (); |
1357 | mn_now = get_clock (); |
2207 | mn_now = get_clock (); |
1358 | now_floor = mn_now; |
2208 | now_floor = mn_now; |
1359 | } |
2209 | } |
1360 | |
2210 | |
|
|
2211 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
2212 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1361 | # if EV_PERIODIC_ENABLE |
2213 | # if EV_PERIODIC_ENABLE |
1362 | periodics_reschedule (EV_A); |
2214 | periodics_reschedule (EV_A); |
1363 | # endif |
2215 | # endif |
1364 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1365 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1366 | } |
2216 | } |
1367 | else |
2217 | else |
1368 | #endif |
2218 | #endif |
1369 | { |
2219 | { |
1370 | ev_rt_now = ev_time (); |
2220 | ev_rt_now = ev_time (); |
1371 | |
2221 | |
1372 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
2222 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1373 | { |
2223 | { |
|
|
2224 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
2225 | timers_reschedule (EV_A_ ev_rt_now - mn_now); |
1374 | #if EV_PERIODIC_ENABLE |
2226 | #if EV_PERIODIC_ENABLE |
1375 | periodics_reschedule (EV_A); |
2227 | periodics_reschedule (EV_A); |
1376 | #endif |
2228 | #endif |
1377 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1378 | for (i = 0; i < timercnt; ++i) |
|
|
1379 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
|
|
1380 | } |
2229 | } |
1381 | |
2230 | |
1382 | mn_now = ev_rt_now; |
2231 | mn_now = ev_rt_now; |
1383 | } |
2232 | } |
1384 | } |
2233 | } |
1385 | |
2234 | |
1386 | void |
2235 | void |
1387 | ev_ref (EV_P) |
|
|
1388 | { |
|
|
1389 | ++activecnt; |
|
|
1390 | } |
|
|
1391 | |
|
|
1392 | void |
|
|
1393 | ev_unref (EV_P) |
|
|
1394 | { |
|
|
1395 | --activecnt; |
|
|
1396 | } |
|
|
1397 | |
|
|
1398 | static int loop_done; |
|
|
1399 | |
|
|
1400 | void |
|
|
1401 | ev_loop (EV_P_ int flags) |
2236 | ev_loop (EV_P_ int flags) |
1402 | { |
2237 | { |
1403 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
2238 | #if EV_MINIMAL < 2 |
1404 | ? EVUNLOOP_ONE |
2239 | ++loop_depth; |
1405 | : EVUNLOOP_CANCEL; |
2240 | #endif |
1406 | |
2241 | |
|
|
2242 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
|
|
2243 | |
|
|
2244 | loop_done = EVUNLOOP_CANCEL; |
|
|
2245 | |
1407 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2246 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
1408 | |
2247 | |
1409 | do |
2248 | do |
1410 | { |
2249 | { |
|
|
2250 | #if EV_VERIFY >= 2 |
|
|
2251 | ev_loop_verify (EV_A); |
|
|
2252 | #endif |
|
|
2253 | |
1411 | #ifndef _WIN32 |
2254 | #ifndef _WIN32 |
1412 | if (expect_false (curpid)) /* penalise the forking check even more */ |
2255 | if (expect_false (curpid)) /* penalise the forking check even more */ |
1413 | if (expect_false (getpid () != curpid)) |
2256 | if (expect_false (getpid () != curpid)) |
1414 | { |
2257 | { |
1415 | curpid = getpid (); |
2258 | curpid = getpid (); |
… | |
… | |
1421 | /* we might have forked, so queue fork handlers */ |
2264 | /* we might have forked, so queue fork handlers */ |
1422 | if (expect_false (postfork)) |
2265 | if (expect_false (postfork)) |
1423 | if (forkcnt) |
2266 | if (forkcnt) |
1424 | { |
2267 | { |
1425 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2268 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
1426 | call_pending (EV_A); |
2269 | EV_INVOKE_PENDING; |
1427 | } |
2270 | } |
1428 | #endif |
2271 | #endif |
1429 | |
2272 | |
1430 | /* queue prepare watchers (and execute them) */ |
2273 | /* queue prepare watchers (and execute them) */ |
1431 | if (expect_false (preparecnt)) |
2274 | if (expect_false (preparecnt)) |
1432 | { |
2275 | { |
1433 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2276 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1434 | call_pending (EV_A); |
2277 | EV_INVOKE_PENDING; |
1435 | } |
2278 | } |
1436 | |
2279 | |
1437 | if (expect_false (!activecnt)) |
2280 | if (expect_false (loop_done)) |
1438 | break; |
2281 | break; |
1439 | |
2282 | |
1440 | /* we might have forked, so reify kernel state if necessary */ |
2283 | /* we might have forked, so reify kernel state if necessary */ |
1441 | if (expect_false (postfork)) |
2284 | if (expect_false (postfork)) |
1442 | loop_fork (EV_A); |
2285 | loop_fork (EV_A); |
… | |
… | |
1444 | /* update fd-related kernel structures */ |
2287 | /* update fd-related kernel structures */ |
1445 | fd_reify (EV_A); |
2288 | fd_reify (EV_A); |
1446 | |
2289 | |
1447 | /* calculate blocking time */ |
2290 | /* calculate blocking time */ |
1448 | { |
2291 | { |
1449 | ev_tstamp block; |
2292 | ev_tstamp waittime = 0.; |
|
|
2293 | ev_tstamp sleeptime = 0.; |
1450 | |
2294 | |
1451 | if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt)) |
2295 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1452 | block = 0.; /* do not block at all */ |
|
|
1453 | else |
|
|
1454 | { |
2296 | { |
|
|
2297 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2298 | ev_tstamp prev_mn_now = mn_now; |
|
|
2299 | |
1455 | /* update time to cancel out callback processing overhead */ |
2300 | /* update time to cancel out callback processing overhead */ |
1456 | time_update (EV_A_ 1e100); |
2301 | time_update (EV_A_ 1e100); |
1457 | |
2302 | |
1458 | block = MAX_BLOCKTIME; |
2303 | waittime = MAX_BLOCKTIME; |
1459 | |
2304 | |
1460 | if (timercnt) |
2305 | if (timercnt) |
1461 | { |
2306 | { |
1462 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
2307 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1463 | if (block > to) block = to; |
2308 | if (waittime > to) waittime = to; |
1464 | } |
2309 | } |
1465 | |
2310 | |
1466 | #if EV_PERIODIC_ENABLE |
2311 | #if EV_PERIODIC_ENABLE |
1467 | if (periodiccnt) |
2312 | if (periodiccnt) |
1468 | { |
2313 | { |
1469 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
2314 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1470 | if (block > to) block = to; |
2315 | if (waittime > to) waittime = to; |
1471 | } |
2316 | } |
1472 | #endif |
2317 | #endif |
1473 | |
2318 | |
|
|
2319 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
|
|
2320 | if (expect_false (waittime < timeout_blocktime)) |
|
|
2321 | waittime = timeout_blocktime; |
|
|
2322 | |
|
|
2323 | /* extra check because io_blocktime is commonly 0 */ |
1474 | if (expect_false (block < 0.)) block = 0.; |
2324 | if (expect_false (io_blocktime)) |
|
|
2325 | { |
|
|
2326 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
|
|
2327 | |
|
|
2328 | if (sleeptime > waittime - backend_fudge) |
|
|
2329 | sleeptime = waittime - backend_fudge; |
|
|
2330 | |
|
|
2331 | if (expect_true (sleeptime > 0.)) |
|
|
2332 | { |
|
|
2333 | ev_sleep (sleeptime); |
|
|
2334 | waittime -= sleeptime; |
|
|
2335 | } |
|
|
2336 | } |
1475 | } |
2337 | } |
1476 | |
2338 | |
|
|
2339 | #if EV_MINIMAL < 2 |
1477 | ++loop_count; |
2340 | ++loop_count; |
|
|
2341 | #endif |
|
|
2342 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
1478 | backend_poll (EV_A_ block); |
2343 | backend_poll (EV_A_ waittime); |
|
|
2344 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
1479 | |
2345 | |
1480 | /* update ev_rt_now, do magic */ |
2346 | /* update ev_rt_now, do magic */ |
1481 | time_update (EV_A_ block); |
2347 | time_update (EV_A_ waittime + sleeptime); |
1482 | } |
2348 | } |
1483 | |
2349 | |
1484 | /* queue pending timers and reschedule them */ |
2350 | /* queue pending timers and reschedule them */ |
1485 | timers_reify (EV_A); /* relative timers called last */ |
2351 | timers_reify (EV_A); /* relative timers called last */ |
1486 | #if EV_PERIODIC_ENABLE |
2352 | #if EV_PERIODIC_ENABLE |
… | |
… | |
1494 | |
2360 | |
1495 | /* queue check watchers, to be executed first */ |
2361 | /* queue check watchers, to be executed first */ |
1496 | if (expect_false (checkcnt)) |
2362 | if (expect_false (checkcnt)) |
1497 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2363 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1498 | |
2364 | |
1499 | call_pending (EV_A); |
2365 | EV_INVOKE_PENDING; |
1500 | |
|
|
1501 | } |
2366 | } |
1502 | while (expect_true (activecnt && !loop_done)); |
2367 | while (expect_true ( |
|
|
2368 | activecnt |
|
|
2369 | && !loop_done |
|
|
2370 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
2371 | )); |
1503 | |
2372 | |
1504 | if (loop_done == EVUNLOOP_ONE) |
2373 | if (loop_done == EVUNLOOP_ONE) |
1505 | loop_done = EVUNLOOP_CANCEL; |
2374 | loop_done = EVUNLOOP_CANCEL; |
|
|
2375 | |
|
|
2376 | #if EV_MINIMAL < 2 |
|
|
2377 | --loop_depth; |
|
|
2378 | #endif |
1506 | } |
2379 | } |
1507 | |
2380 | |
1508 | void |
2381 | void |
1509 | ev_unloop (EV_P_ int how) |
2382 | ev_unloop (EV_P_ int how) |
1510 | { |
2383 | { |
1511 | loop_done = how; |
2384 | loop_done = how; |
1512 | } |
2385 | } |
1513 | |
2386 | |
|
|
2387 | void |
|
|
2388 | ev_ref (EV_P) |
|
|
2389 | { |
|
|
2390 | ++activecnt; |
|
|
2391 | } |
|
|
2392 | |
|
|
2393 | void |
|
|
2394 | ev_unref (EV_P) |
|
|
2395 | { |
|
|
2396 | --activecnt; |
|
|
2397 | } |
|
|
2398 | |
|
|
2399 | void |
|
|
2400 | ev_now_update (EV_P) |
|
|
2401 | { |
|
|
2402 | time_update (EV_A_ 1e100); |
|
|
2403 | } |
|
|
2404 | |
|
|
2405 | void |
|
|
2406 | ev_suspend (EV_P) |
|
|
2407 | { |
|
|
2408 | ev_now_update (EV_A); |
|
|
2409 | } |
|
|
2410 | |
|
|
2411 | void |
|
|
2412 | ev_resume (EV_P) |
|
|
2413 | { |
|
|
2414 | ev_tstamp mn_prev = mn_now; |
|
|
2415 | |
|
|
2416 | ev_now_update (EV_A); |
|
|
2417 | timers_reschedule (EV_A_ mn_now - mn_prev); |
|
|
2418 | #if EV_PERIODIC_ENABLE |
|
|
2419 | /* TODO: really do this? */ |
|
|
2420 | periodics_reschedule (EV_A); |
|
|
2421 | #endif |
|
|
2422 | } |
|
|
2423 | |
1514 | /*****************************************************************************/ |
2424 | /*****************************************************************************/ |
|
|
2425 | /* singly-linked list management, used when the expected list length is short */ |
1515 | |
2426 | |
1516 | void inline_size |
2427 | inline_size void |
1517 | wlist_add (WL *head, WL elem) |
2428 | wlist_add (WL *head, WL elem) |
1518 | { |
2429 | { |
1519 | elem->next = *head; |
2430 | elem->next = *head; |
1520 | *head = elem; |
2431 | *head = elem; |
1521 | } |
2432 | } |
1522 | |
2433 | |
1523 | void inline_size |
2434 | inline_size void |
1524 | wlist_del (WL *head, WL elem) |
2435 | wlist_del (WL *head, WL elem) |
1525 | { |
2436 | { |
1526 | while (*head) |
2437 | while (*head) |
1527 | { |
2438 | { |
1528 | if (*head == elem) |
2439 | if (expect_true (*head == elem)) |
1529 | { |
2440 | { |
1530 | *head = elem->next; |
2441 | *head = elem->next; |
1531 | return; |
2442 | break; |
1532 | } |
2443 | } |
1533 | |
2444 | |
1534 | head = &(*head)->next; |
2445 | head = &(*head)->next; |
1535 | } |
2446 | } |
1536 | } |
2447 | } |
1537 | |
2448 | |
1538 | void inline_speed |
2449 | /* internal, faster, version of ev_clear_pending */ |
|
|
2450 | inline_speed void |
1539 | clear_pending (EV_P_ W w) |
2451 | clear_pending (EV_P_ W w) |
1540 | { |
2452 | { |
1541 | if (w->pending) |
2453 | if (w->pending) |
1542 | { |
2454 | { |
1543 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2455 | pendings [ABSPRI (w)][w->pending - 1].w = (W)&pending_w; |
1544 | w->pending = 0; |
2456 | w->pending = 0; |
1545 | } |
2457 | } |
1546 | } |
2458 | } |
1547 | |
2459 | |
1548 | int |
2460 | int |
… | |
… | |
1552 | int pending = w_->pending; |
2464 | int pending = w_->pending; |
1553 | |
2465 | |
1554 | if (expect_true (pending)) |
2466 | if (expect_true (pending)) |
1555 | { |
2467 | { |
1556 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
2468 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2469 | p->w = (W)&pending_w; |
1557 | w_->pending = 0; |
2470 | w_->pending = 0; |
1558 | p->w = 0; |
|
|
1559 | return p->events; |
2471 | return p->events; |
1560 | } |
2472 | } |
1561 | else |
2473 | else |
1562 | return 0; |
2474 | return 0; |
1563 | } |
2475 | } |
1564 | |
2476 | |
1565 | void inline_size |
2477 | inline_size void |
1566 | pri_adjust (EV_P_ W w) |
2478 | pri_adjust (EV_P_ W w) |
1567 | { |
2479 | { |
1568 | int pri = w->priority; |
2480 | int pri = ev_priority (w); |
1569 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
2481 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
1570 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
2482 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
1571 | w->priority = pri; |
2483 | ev_set_priority (w, pri); |
1572 | } |
2484 | } |
1573 | |
2485 | |
1574 | void inline_speed |
2486 | inline_speed void |
1575 | ev_start (EV_P_ W w, int active) |
2487 | ev_start (EV_P_ W w, int active) |
1576 | { |
2488 | { |
1577 | pri_adjust (EV_A_ w); |
2489 | pri_adjust (EV_A_ w); |
1578 | w->active = active; |
2490 | w->active = active; |
1579 | ev_ref (EV_A); |
2491 | ev_ref (EV_A); |
1580 | } |
2492 | } |
1581 | |
2493 | |
1582 | void inline_size |
2494 | inline_size void |
1583 | ev_stop (EV_P_ W w) |
2495 | ev_stop (EV_P_ W w) |
1584 | { |
2496 | { |
1585 | ev_unref (EV_A); |
2497 | ev_unref (EV_A); |
1586 | w->active = 0; |
2498 | w->active = 0; |
1587 | } |
2499 | } |
… | |
… | |
1594 | int fd = w->fd; |
2506 | int fd = w->fd; |
1595 | |
2507 | |
1596 | if (expect_false (ev_is_active (w))) |
2508 | if (expect_false (ev_is_active (w))) |
1597 | return; |
2509 | return; |
1598 | |
2510 | |
1599 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2511 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
|
|
2512 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
|
|
2513 | |
|
|
2514 | EV_FREQUENT_CHECK; |
1600 | |
2515 | |
1601 | ev_start (EV_A_ (W)w, 1); |
2516 | ev_start (EV_A_ (W)w, 1); |
1602 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2517 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
1603 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
2518 | wlist_add (&anfds[fd].head, (WL)w); |
1604 | |
2519 | |
1605 | fd_change (EV_A_ fd); |
2520 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
|
|
2521 | w->events &= ~EV__IOFDSET; |
|
|
2522 | |
|
|
2523 | EV_FREQUENT_CHECK; |
1606 | } |
2524 | } |
1607 | |
2525 | |
1608 | void noinline |
2526 | void noinline |
1609 | ev_io_stop (EV_P_ ev_io *w) |
2527 | ev_io_stop (EV_P_ ev_io *w) |
1610 | { |
2528 | { |
1611 | clear_pending (EV_A_ (W)w); |
2529 | clear_pending (EV_A_ (W)w); |
1612 | if (expect_false (!ev_is_active (w))) |
2530 | if (expect_false (!ev_is_active (w))) |
1613 | return; |
2531 | return; |
1614 | |
2532 | |
1615 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2533 | assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1616 | |
2534 | |
|
|
2535 | EV_FREQUENT_CHECK; |
|
|
2536 | |
1617 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
2537 | wlist_del (&anfds[w->fd].head, (WL)w); |
1618 | ev_stop (EV_A_ (W)w); |
2538 | ev_stop (EV_A_ (W)w); |
1619 | |
2539 | |
1620 | fd_change (EV_A_ w->fd); |
2540 | fd_change (EV_A_ w->fd, 1); |
|
|
2541 | |
|
|
2542 | EV_FREQUENT_CHECK; |
1621 | } |
2543 | } |
1622 | |
2544 | |
1623 | void noinline |
2545 | void noinline |
1624 | ev_timer_start (EV_P_ ev_timer *w) |
2546 | ev_timer_start (EV_P_ ev_timer *w) |
1625 | { |
2547 | { |
1626 | if (expect_false (ev_is_active (w))) |
2548 | if (expect_false (ev_is_active (w))) |
1627 | return; |
2549 | return; |
1628 | |
2550 | |
1629 | ((WT)w)->at += mn_now; |
2551 | ev_at (w) += mn_now; |
1630 | |
2552 | |
1631 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2553 | assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1632 | |
2554 | |
|
|
2555 | EV_FREQUENT_CHECK; |
|
|
2556 | |
|
|
2557 | ++timercnt; |
1633 | ev_start (EV_A_ (W)w, ++timercnt); |
2558 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1634 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
2559 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1635 | timers [timercnt - 1] = w; |
2560 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1636 | upheap ((WT *)timers, timercnt - 1); |
2561 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
2562 | upheap (timers, ev_active (w)); |
1637 | |
2563 | |
|
|
2564 | EV_FREQUENT_CHECK; |
|
|
2565 | |
1638 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
2566 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1639 | } |
2567 | } |
1640 | |
2568 | |
1641 | void noinline |
2569 | void noinline |
1642 | ev_timer_stop (EV_P_ ev_timer *w) |
2570 | ev_timer_stop (EV_P_ ev_timer *w) |
1643 | { |
2571 | { |
1644 | clear_pending (EV_A_ (W)w); |
2572 | clear_pending (EV_A_ (W)w); |
1645 | if (expect_false (!ev_is_active (w))) |
2573 | if (expect_false (!ev_is_active (w))) |
1646 | return; |
2574 | return; |
1647 | |
2575 | |
1648 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
2576 | EV_FREQUENT_CHECK; |
1649 | |
2577 | |
1650 | { |
2578 | { |
1651 | int active = ((W)w)->active; |
2579 | int active = ev_active (w); |
1652 | |
2580 | |
|
|
2581 | assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
|
|
2582 | |
|
|
2583 | --timercnt; |
|
|
2584 | |
1653 | if (expect_true (--active < --timercnt)) |
2585 | if (expect_true (active < timercnt + HEAP0)) |
1654 | { |
2586 | { |
1655 | timers [active] = timers [timercnt]; |
2587 | timers [active] = timers [timercnt + HEAP0]; |
1656 | adjustheap ((WT *)timers, timercnt, active); |
2588 | adjustheap (timers, timercnt, active); |
1657 | } |
2589 | } |
1658 | } |
2590 | } |
1659 | |
2591 | |
1660 | ((WT)w)->at -= mn_now; |
2592 | EV_FREQUENT_CHECK; |
|
|
2593 | |
|
|
2594 | ev_at (w) -= mn_now; |
1661 | |
2595 | |
1662 | ev_stop (EV_A_ (W)w); |
2596 | ev_stop (EV_A_ (W)w); |
1663 | } |
2597 | } |
1664 | |
2598 | |
1665 | void noinline |
2599 | void noinline |
1666 | ev_timer_again (EV_P_ ev_timer *w) |
2600 | ev_timer_again (EV_P_ ev_timer *w) |
1667 | { |
2601 | { |
|
|
2602 | EV_FREQUENT_CHECK; |
|
|
2603 | |
1668 | if (ev_is_active (w)) |
2604 | if (ev_is_active (w)) |
1669 | { |
2605 | { |
1670 | if (w->repeat) |
2606 | if (w->repeat) |
1671 | { |
2607 | { |
1672 | ((WT)w)->at = mn_now + w->repeat; |
2608 | ev_at (w) = mn_now + w->repeat; |
|
|
2609 | ANHE_at_cache (timers [ev_active (w)]); |
1673 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
2610 | adjustheap (timers, timercnt, ev_active (w)); |
1674 | } |
2611 | } |
1675 | else |
2612 | else |
1676 | ev_timer_stop (EV_A_ w); |
2613 | ev_timer_stop (EV_A_ w); |
1677 | } |
2614 | } |
1678 | else if (w->repeat) |
2615 | else if (w->repeat) |
1679 | { |
2616 | { |
1680 | w->at = w->repeat; |
2617 | ev_at (w) = w->repeat; |
1681 | ev_timer_start (EV_A_ w); |
2618 | ev_timer_start (EV_A_ w); |
1682 | } |
2619 | } |
|
|
2620 | |
|
|
2621 | EV_FREQUENT_CHECK; |
|
|
2622 | } |
|
|
2623 | |
|
|
2624 | ev_tstamp |
|
|
2625 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2626 | { |
|
|
2627 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
1683 | } |
2628 | } |
1684 | |
2629 | |
1685 | #if EV_PERIODIC_ENABLE |
2630 | #if EV_PERIODIC_ENABLE |
1686 | void noinline |
2631 | void noinline |
1687 | ev_periodic_start (EV_P_ ev_periodic *w) |
2632 | ev_periodic_start (EV_P_ ev_periodic *w) |
1688 | { |
2633 | { |
1689 | if (expect_false (ev_is_active (w))) |
2634 | if (expect_false (ev_is_active (w))) |
1690 | return; |
2635 | return; |
1691 | |
2636 | |
1692 | if (w->reschedule_cb) |
2637 | if (w->reschedule_cb) |
1693 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2638 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1694 | else if (w->interval) |
2639 | else if (w->interval) |
1695 | { |
2640 | { |
1696 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2641 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1697 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2642 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1698 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2643 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1699 | } |
2644 | } |
1700 | else |
2645 | else |
1701 | ((WT)w)->at = w->offset; |
2646 | ev_at (w) = w->offset; |
1702 | |
2647 | |
|
|
2648 | EV_FREQUENT_CHECK; |
|
|
2649 | |
|
|
2650 | ++periodiccnt; |
1703 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2651 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
1704 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
2652 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1705 | periodics [periodiccnt - 1] = w; |
2653 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1706 | upheap ((WT *)periodics, periodiccnt - 1); |
2654 | ANHE_at_cache (periodics [ev_active (w)]); |
|
|
2655 | upheap (periodics, ev_active (w)); |
1707 | |
2656 | |
|
|
2657 | EV_FREQUENT_CHECK; |
|
|
2658 | |
1708 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
2659 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1709 | } |
2660 | } |
1710 | |
2661 | |
1711 | void noinline |
2662 | void noinline |
1712 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2663 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1713 | { |
2664 | { |
1714 | clear_pending (EV_A_ (W)w); |
2665 | clear_pending (EV_A_ (W)w); |
1715 | if (expect_false (!ev_is_active (w))) |
2666 | if (expect_false (!ev_is_active (w))) |
1716 | return; |
2667 | return; |
1717 | |
2668 | |
1718 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
2669 | EV_FREQUENT_CHECK; |
1719 | |
2670 | |
1720 | { |
2671 | { |
1721 | int active = ((W)w)->active; |
2672 | int active = ev_active (w); |
1722 | |
2673 | |
|
|
2674 | assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
|
|
2675 | |
|
|
2676 | --periodiccnt; |
|
|
2677 | |
1723 | if (expect_true (--active < --periodiccnt)) |
2678 | if (expect_true (active < periodiccnt + HEAP0)) |
1724 | { |
2679 | { |
1725 | periodics [active] = periodics [periodiccnt]; |
2680 | periodics [active] = periodics [periodiccnt + HEAP0]; |
1726 | adjustheap ((WT *)periodics, periodiccnt, active); |
2681 | adjustheap (periodics, periodiccnt, active); |
1727 | } |
2682 | } |
1728 | } |
2683 | } |
|
|
2684 | |
|
|
2685 | EV_FREQUENT_CHECK; |
1729 | |
2686 | |
1730 | ev_stop (EV_A_ (W)w); |
2687 | ev_stop (EV_A_ (W)w); |
1731 | } |
2688 | } |
1732 | |
2689 | |
1733 | void noinline |
2690 | void noinline |
… | |
… | |
1744 | #endif |
2701 | #endif |
1745 | |
2702 | |
1746 | void noinline |
2703 | void noinline |
1747 | ev_signal_start (EV_P_ ev_signal *w) |
2704 | ev_signal_start (EV_P_ ev_signal *w) |
1748 | { |
2705 | { |
1749 | #if EV_MULTIPLICITY |
|
|
1750 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1751 | #endif |
|
|
1752 | if (expect_false (ev_is_active (w))) |
2706 | if (expect_false (ev_is_active (w))) |
1753 | return; |
2707 | return; |
1754 | |
2708 | |
1755 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
2709 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
|
|
2710 | |
|
|
2711 | #if EV_MULTIPLICITY |
|
|
2712 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2713 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
|
|
2714 | |
|
|
2715 | signals [w->signum - 1].loop = EV_A; |
|
|
2716 | #endif |
|
|
2717 | |
|
|
2718 | EV_FREQUENT_CHECK; |
|
|
2719 | |
|
|
2720 | #if EV_USE_SIGNALFD |
|
|
2721 | if (sigfd == -2) |
|
|
2722 | { |
|
|
2723 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
|
|
2724 | if (sigfd < 0 && errno == EINVAL) |
|
|
2725 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
|
|
2726 | |
|
|
2727 | if (sigfd >= 0) |
|
|
2728 | { |
|
|
2729 | fd_intern (sigfd); /* doing it twice will not hurt */ |
|
|
2730 | |
|
|
2731 | sigemptyset (&sigfd_set); |
|
|
2732 | |
|
|
2733 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2734 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2735 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2736 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2737 | } |
|
|
2738 | } |
|
|
2739 | |
|
|
2740 | if (sigfd >= 0) |
|
|
2741 | { |
|
|
2742 | /* TODO: check .head */ |
|
|
2743 | sigaddset (&sigfd_set, w->signum); |
|
|
2744 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2745 | |
|
|
2746 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2747 | } |
|
|
2748 | #endif |
1756 | |
2749 | |
1757 | ev_start (EV_A_ (W)w, 1); |
2750 | ev_start (EV_A_ (W)w, 1); |
1758 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1759 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
2751 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1760 | |
2752 | |
1761 | if (!((WL)w)->next) |
2753 | if (!((WL)w)->next) |
|
|
2754 | # if EV_USE_SIGNALFD |
|
|
2755 | if (sigfd < 0) /*TODO*/ |
|
|
2756 | # endif |
1762 | { |
2757 | { |
1763 | #if _WIN32 |
2758 | # ifdef _WIN32 |
|
|
2759 | evpipe_init (EV_A); |
|
|
2760 | |
1764 | signal (w->signum, sighandler); |
2761 | signal (w->signum, ev_sighandler); |
1765 | #else |
2762 | # else |
1766 | struct sigaction sa; |
2763 | struct sigaction sa; |
|
|
2764 | |
|
|
2765 | evpipe_init (EV_A); |
|
|
2766 | |
1767 | sa.sa_handler = sighandler; |
2767 | sa.sa_handler = ev_sighandler; |
1768 | sigfillset (&sa.sa_mask); |
2768 | sigfillset (&sa.sa_mask); |
1769 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2769 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1770 | sigaction (w->signum, &sa, 0); |
2770 | sigaction (w->signum, &sa, 0); |
|
|
2771 | |
|
|
2772 | sigemptyset (&sa.sa_mask); |
|
|
2773 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2774 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
1771 | #endif |
2775 | #endif |
1772 | } |
2776 | } |
|
|
2777 | |
|
|
2778 | EV_FREQUENT_CHECK; |
1773 | } |
2779 | } |
1774 | |
2780 | |
1775 | void noinline |
2781 | void noinline |
1776 | ev_signal_stop (EV_P_ ev_signal *w) |
2782 | ev_signal_stop (EV_P_ ev_signal *w) |
1777 | { |
2783 | { |
1778 | clear_pending (EV_A_ (W)w); |
2784 | clear_pending (EV_A_ (W)w); |
1779 | if (expect_false (!ev_is_active (w))) |
2785 | if (expect_false (!ev_is_active (w))) |
1780 | return; |
2786 | return; |
1781 | |
2787 | |
|
|
2788 | EV_FREQUENT_CHECK; |
|
|
2789 | |
1782 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
2790 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1783 | ev_stop (EV_A_ (W)w); |
2791 | ev_stop (EV_A_ (W)w); |
1784 | |
2792 | |
1785 | if (!signals [w->signum - 1].head) |
2793 | if (!signals [w->signum - 1].head) |
|
|
2794 | { |
|
|
2795 | #if EV_MULTIPLICITY |
|
|
2796 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2797 | #endif |
|
|
2798 | #if EV_USE_SIGNALFD |
|
|
2799 | if (sigfd >= 0) |
|
|
2800 | { |
|
|
2801 | sigset_t ss; |
|
|
2802 | |
|
|
2803 | sigemptyset (&ss); |
|
|
2804 | sigaddset (&ss, w->signum); |
|
|
2805 | sigdelset (&sigfd_set, w->signum); |
|
|
2806 | |
|
|
2807 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2808 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
2809 | } |
|
|
2810 | else |
|
|
2811 | #endif |
1786 | signal (w->signum, SIG_DFL); |
2812 | signal (w->signum, SIG_DFL); |
|
|
2813 | } |
|
|
2814 | |
|
|
2815 | EV_FREQUENT_CHECK; |
1787 | } |
2816 | } |
1788 | |
2817 | |
1789 | void |
2818 | void |
1790 | ev_child_start (EV_P_ ev_child *w) |
2819 | ev_child_start (EV_P_ ev_child *w) |
1791 | { |
2820 | { |
1792 | #if EV_MULTIPLICITY |
2821 | #if EV_MULTIPLICITY |
1793 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2822 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1794 | #endif |
2823 | #endif |
1795 | if (expect_false (ev_is_active (w))) |
2824 | if (expect_false (ev_is_active (w))) |
1796 | return; |
2825 | return; |
1797 | |
2826 | |
|
|
2827 | EV_FREQUENT_CHECK; |
|
|
2828 | |
1798 | ev_start (EV_A_ (W)w, 1); |
2829 | ev_start (EV_A_ (W)w, 1); |
1799 | wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2830 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
2831 | |
|
|
2832 | EV_FREQUENT_CHECK; |
1800 | } |
2833 | } |
1801 | |
2834 | |
1802 | void |
2835 | void |
1803 | ev_child_stop (EV_P_ ev_child *w) |
2836 | ev_child_stop (EV_P_ ev_child *w) |
1804 | { |
2837 | { |
1805 | clear_pending (EV_A_ (W)w); |
2838 | clear_pending (EV_A_ (W)w); |
1806 | if (expect_false (!ev_is_active (w))) |
2839 | if (expect_false (!ev_is_active (w))) |
1807 | return; |
2840 | return; |
1808 | |
2841 | |
|
|
2842 | EV_FREQUENT_CHECK; |
|
|
2843 | |
1809 | wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
2844 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1810 | ev_stop (EV_A_ (W)w); |
2845 | ev_stop (EV_A_ (W)w); |
|
|
2846 | |
|
|
2847 | EV_FREQUENT_CHECK; |
1811 | } |
2848 | } |
1812 | |
2849 | |
1813 | #if EV_STAT_ENABLE |
2850 | #if EV_STAT_ENABLE |
1814 | |
2851 | |
1815 | # ifdef _WIN32 |
2852 | # ifdef _WIN32 |
1816 | # undef lstat |
2853 | # undef lstat |
1817 | # define lstat(a,b) _stati64 (a,b) |
2854 | # define lstat(a,b) _stati64 (a,b) |
1818 | # endif |
2855 | # endif |
1819 | |
2856 | |
1820 | #define DEF_STAT_INTERVAL 5.0074891 |
2857 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2858 | #define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ |
1821 | #define MIN_STAT_INTERVAL 0.1074891 |
2859 | #define MIN_STAT_INTERVAL 0.1074891 |
1822 | |
2860 | |
1823 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2861 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
1824 | |
2862 | |
1825 | #if EV_USE_INOTIFY |
2863 | #if EV_USE_INOTIFY |
1826 | # define EV_INOTIFY_BUFSIZE 8192 |
2864 | # define EV_INOTIFY_BUFSIZE 8192 |
… | |
… | |
1828 | static void noinline |
2866 | static void noinline |
1829 | infy_add (EV_P_ ev_stat *w) |
2867 | infy_add (EV_P_ ev_stat *w) |
1830 | { |
2868 | { |
1831 | 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); |
2869 | 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); |
1832 | |
2870 | |
1833 | if (w->wd < 0) |
2871 | if (w->wd >= 0) |
|
|
2872 | { |
|
|
2873 | struct statfs sfs; |
|
|
2874 | |
|
|
2875 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2876 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
2877 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2878 | |
|
|
2879 | if (!fs_2625) |
|
|
2880 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
2881 | else if (!statfs (w->path, &sfs) |
|
|
2882 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
2883 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2884 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2885 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2886 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2887 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
2888 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
2889 | else |
|
|
2890 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
1834 | { |
2891 | } |
1835 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
2892 | else |
|
|
2893 | { |
|
|
2894 | /* can't use inotify, continue to stat */ |
|
|
2895 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
1836 | |
2896 | |
1837 | /* monitor some parent directory for speedup hints */ |
2897 | /* if path is not there, monitor some parent directory for speedup hints */ |
|
|
2898 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
|
|
2899 | /* but an efficiency issue only */ |
1838 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2900 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
1839 | { |
2901 | { |
1840 | char path [4096]; |
2902 | char path [4096]; |
1841 | strcpy (path, w->path); |
2903 | strcpy (path, w->path); |
1842 | |
2904 | |
… | |
… | |
1845 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
2907 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
1846 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
2908 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
1847 | |
2909 | |
1848 | char *pend = strrchr (path, '/'); |
2910 | char *pend = strrchr (path, '/'); |
1849 | |
2911 | |
1850 | if (!pend) |
2912 | if (!pend || pend == path) |
1851 | break; /* whoops, no '/', complain to your admin */ |
2913 | break; |
1852 | |
2914 | |
1853 | *pend = 0; |
2915 | *pend = 0; |
1854 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2916 | w->wd = inotify_add_watch (fs_fd, path, mask); |
1855 | } |
2917 | } |
1856 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2918 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
1857 | } |
2919 | } |
1858 | } |
2920 | } |
1859 | else |
|
|
1860 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
1861 | |
2921 | |
1862 | if (w->wd >= 0) |
2922 | if (w->wd >= 0) |
1863 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2923 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2924 | |
|
|
2925 | /* now re-arm timer, if required */ |
|
|
2926 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
|
|
2927 | ev_timer_again (EV_A_ &w->timer); |
|
|
2928 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
1864 | } |
2929 | } |
1865 | |
2930 | |
1866 | static void noinline |
2931 | static void noinline |
1867 | infy_del (EV_P_ ev_stat *w) |
2932 | infy_del (EV_P_ ev_stat *w) |
1868 | { |
2933 | { |
… | |
… | |
1882 | |
2947 | |
1883 | static void noinline |
2948 | static void noinline |
1884 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
2949 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
1885 | { |
2950 | { |
1886 | if (slot < 0) |
2951 | if (slot < 0) |
1887 | /* overflow, need to check for all hahs slots */ |
2952 | /* overflow, need to check for all hash slots */ |
1888 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2953 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
1889 | infy_wd (EV_A_ slot, wd, ev); |
2954 | infy_wd (EV_A_ slot, wd, ev); |
1890 | else |
2955 | else |
1891 | { |
2956 | { |
1892 | WL w_; |
2957 | WL w_; |
… | |
… | |
1898 | |
2963 | |
1899 | if (w->wd == wd || wd == -1) |
2964 | if (w->wd == wd || wd == -1) |
1900 | { |
2965 | { |
1901 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
2966 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
1902 | { |
2967 | { |
|
|
2968 | wlist_del (&fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
1903 | w->wd = -1; |
2969 | w->wd = -1; |
1904 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2970 | infy_add (EV_A_ w); /* re-add, no matter what */ |
1905 | } |
2971 | } |
1906 | |
2972 | |
1907 | stat_timer_cb (EV_A_ &w->timer, 0); |
2973 | stat_timer_cb (EV_A_ &w->timer, 0); |
… | |
… | |
1920 | |
2986 | |
1921 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
2987 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
1922 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
2988 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
1923 | } |
2989 | } |
1924 | |
2990 | |
1925 | void inline_size |
2991 | inline_size void |
|
|
2992 | check_2625 (EV_P) |
|
|
2993 | { |
|
|
2994 | /* kernels < 2.6.25 are borked |
|
|
2995 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
|
|
2996 | */ |
|
|
2997 | struct utsname buf; |
|
|
2998 | int major, minor, micro; |
|
|
2999 | |
|
|
3000 | if (uname (&buf)) |
|
|
3001 | return; |
|
|
3002 | |
|
|
3003 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
3004 | return; |
|
|
3005 | |
|
|
3006 | if (major < 2 |
|
|
3007 | || (major == 2 && minor < 6) |
|
|
3008 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
3009 | return; |
|
|
3010 | |
|
|
3011 | fs_2625 = 1; |
|
|
3012 | } |
|
|
3013 | |
|
|
3014 | inline_size int |
|
|
3015 | infy_newfd (void) |
|
|
3016 | { |
|
|
3017 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3018 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3019 | if (fd >= 0) |
|
|
3020 | return fd; |
|
|
3021 | #endif |
|
|
3022 | return inotify_init (); |
|
|
3023 | } |
|
|
3024 | |
|
|
3025 | inline_size void |
1926 | infy_init (EV_P) |
3026 | infy_init (EV_P) |
1927 | { |
3027 | { |
1928 | if (fs_fd != -2) |
3028 | if (fs_fd != -2) |
1929 | return; |
3029 | return; |
1930 | |
3030 | |
|
|
3031 | fs_fd = -1; |
|
|
3032 | |
|
|
3033 | check_2625 (EV_A); |
|
|
3034 | |
1931 | fs_fd = inotify_init (); |
3035 | fs_fd = infy_newfd (); |
1932 | |
3036 | |
1933 | if (fs_fd >= 0) |
3037 | if (fs_fd >= 0) |
1934 | { |
3038 | { |
|
|
3039 | fd_intern (fs_fd); |
1935 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3040 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
1936 | ev_set_priority (&fs_w, EV_MAXPRI); |
3041 | ev_set_priority (&fs_w, EV_MAXPRI); |
1937 | ev_io_start (EV_A_ &fs_w); |
3042 | ev_io_start (EV_A_ &fs_w); |
|
|
3043 | ev_unref (EV_A); |
1938 | } |
3044 | } |
1939 | } |
3045 | } |
1940 | |
3046 | |
1941 | void inline_size |
3047 | inline_size void |
1942 | infy_fork (EV_P) |
3048 | infy_fork (EV_P) |
1943 | { |
3049 | { |
1944 | int slot; |
3050 | int slot; |
1945 | |
3051 | |
1946 | if (fs_fd < 0) |
3052 | if (fs_fd < 0) |
1947 | return; |
3053 | return; |
1948 | |
3054 | |
|
|
3055 | ev_ref (EV_A); |
|
|
3056 | ev_io_stop (EV_A_ &fs_w); |
1949 | close (fs_fd); |
3057 | close (fs_fd); |
1950 | fs_fd = inotify_init (); |
3058 | fs_fd = infy_newfd (); |
|
|
3059 | |
|
|
3060 | if (fs_fd >= 0) |
|
|
3061 | { |
|
|
3062 | fd_intern (fs_fd); |
|
|
3063 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3064 | ev_io_start (EV_A_ &fs_w); |
|
|
3065 | ev_unref (EV_A); |
|
|
3066 | } |
1951 | |
3067 | |
1952 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3068 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
1953 | { |
3069 | { |
1954 | WL w_ = fs_hash [slot].head; |
3070 | WL w_ = fs_hash [slot].head; |
1955 | fs_hash [slot].head = 0; |
3071 | fs_hash [slot].head = 0; |
… | |
… | |
1962 | w->wd = -1; |
3078 | w->wd = -1; |
1963 | |
3079 | |
1964 | if (fs_fd >= 0) |
3080 | if (fs_fd >= 0) |
1965 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3081 | infy_add (EV_A_ w); /* re-add, no matter what */ |
1966 | else |
3082 | else |
|
|
3083 | { |
|
|
3084 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3085 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
1967 | ev_timer_start (EV_A_ &w->timer); |
3086 | ev_timer_again (EV_A_ &w->timer); |
|
|
3087 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3088 | } |
1968 | } |
3089 | } |
1969 | |
|
|
1970 | } |
3090 | } |
1971 | } |
3091 | } |
1972 | |
3092 | |
|
|
3093 | #endif |
|
|
3094 | |
|
|
3095 | #ifdef _WIN32 |
|
|
3096 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
3097 | #else |
|
|
3098 | # define EV_LSTAT(p,b) lstat (p, b) |
1973 | #endif |
3099 | #endif |
1974 | |
3100 | |
1975 | void |
3101 | void |
1976 | ev_stat_stat (EV_P_ ev_stat *w) |
3102 | ev_stat_stat (EV_P_ ev_stat *w) |
1977 | { |
3103 | { |
… | |
… | |
1984 | static void noinline |
3110 | static void noinline |
1985 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3111 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
1986 | { |
3112 | { |
1987 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3113 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
1988 | |
3114 | |
1989 | /* we copy this here each the time so that */ |
3115 | ev_statdata prev = w->attr; |
1990 | /* prev has the old value when the callback gets invoked */ |
|
|
1991 | w->prev = w->attr; |
|
|
1992 | ev_stat_stat (EV_A_ w); |
3116 | ev_stat_stat (EV_A_ w); |
1993 | |
3117 | |
1994 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3118 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
1995 | if ( |
3119 | if ( |
1996 | w->prev.st_dev != w->attr.st_dev |
3120 | prev.st_dev != w->attr.st_dev |
1997 | || w->prev.st_ino != w->attr.st_ino |
3121 | || prev.st_ino != w->attr.st_ino |
1998 | || w->prev.st_mode != w->attr.st_mode |
3122 | || prev.st_mode != w->attr.st_mode |
1999 | || w->prev.st_nlink != w->attr.st_nlink |
3123 | || prev.st_nlink != w->attr.st_nlink |
2000 | || w->prev.st_uid != w->attr.st_uid |
3124 | || prev.st_uid != w->attr.st_uid |
2001 | || w->prev.st_gid != w->attr.st_gid |
3125 | || prev.st_gid != w->attr.st_gid |
2002 | || w->prev.st_rdev != w->attr.st_rdev |
3126 | || prev.st_rdev != w->attr.st_rdev |
2003 | || w->prev.st_size != w->attr.st_size |
3127 | || prev.st_size != w->attr.st_size |
2004 | || w->prev.st_atime != w->attr.st_atime |
3128 | || prev.st_atime != w->attr.st_atime |
2005 | || w->prev.st_mtime != w->attr.st_mtime |
3129 | || prev.st_mtime != w->attr.st_mtime |
2006 | || w->prev.st_ctime != w->attr.st_ctime |
3130 | || prev.st_ctime != w->attr.st_ctime |
2007 | ) { |
3131 | ) { |
|
|
3132 | /* we only update w->prev on actual differences */ |
|
|
3133 | /* in case we test more often than invoke the callback, */ |
|
|
3134 | /* to ensure that prev is always different to attr */ |
|
|
3135 | w->prev = prev; |
|
|
3136 | |
2008 | #if EV_USE_INOTIFY |
3137 | #if EV_USE_INOTIFY |
|
|
3138 | if (fs_fd >= 0) |
|
|
3139 | { |
2009 | infy_del (EV_A_ w); |
3140 | infy_del (EV_A_ w); |
2010 | infy_add (EV_A_ w); |
3141 | infy_add (EV_A_ w); |
2011 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
3142 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
3143 | } |
2012 | #endif |
3144 | #endif |
2013 | |
3145 | |
2014 | ev_feed_event (EV_A_ w, EV_STAT); |
3146 | ev_feed_event (EV_A_ w, EV_STAT); |
2015 | } |
3147 | } |
2016 | } |
3148 | } |
… | |
… | |
2019 | ev_stat_start (EV_P_ ev_stat *w) |
3151 | ev_stat_start (EV_P_ ev_stat *w) |
2020 | { |
3152 | { |
2021 | if (expect_false (ev_is_active (w))) |
3153 | if (expect_false (ev_is_active (w))) |
2022 | return; |
3154 | return; |
2023 | |
3155 | |
2024 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2025 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2026 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2027 | |
|
|
2028 | ev_stat_stat (EV_A_ w); |
3156 | ev_stat_stat (EV_A_ w); |
2029 | |
3157 | |
|
|
3158 | if (w->interval < MIN_STAT_INTERVAL && w->interval) |
2030 | if (w->interval < MIN_STAT_INTERVAL) |
3159 | w->interval = MIN_STAT_INTERVAL; |
2031 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2032 | |
3160 | |
2033 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
3161 | ev_timer_init (&w->timer, stat_timer_cb, 0., w->interval ? w->interval : DEF_STAT_INTERVAL); |
2034 | ev_set_priority (&w->timer, ev_priority (w)); |
3162 | ev_set_priority (&w->timer, ev_priority (w)); |
2035 | |
3163 | |
2036 | #if EV_USE_INOTIFY |
3164 | #if EV_USE_INOTIFY |
2037 | infy_init (EV_A); |
3165 | infy_init (EV_A); |
2038 | |
3166 | |
2039 | if (fs_fd >= 0) |
3167 | if (fs_fd >= 0) |
2040 | infy_add (EV_A_ w); |
3168 | infy_add (EV_A_ w); |
2041 | else |
3169 | else |
2042 | #endif |
3170 | #endif |
|
|
3171 | { |
2043 | ev_timer_start (EV_A_ &w->timer); |
3172 | ev_timer_again (EV_A_ &w->timer); |
|
|
3173 | ev_unref (EV_A); |
|
|
3174 | } |
2044 | |
3175 | |
2045 | ev_start (EV_A_ (W)w, 1); |
3176 | ev_start (EV_A_ (W)w, 1); |
|
|
3177 | |
|
|
3178 | EV_FREQUENT_CHECK; |
2046 | } |
3179 | } |
2047 | |
3180 | |
2048 | void |
3181 | void |
2049 | ev_stat_stop (EV_P_ ev_stat *w) |
3182 | ev_stat_stop (EV_P_ ev_stat *w) |
2050 | { |
3183 | { |
2051 | clear_pending (EV_A_ (W)w); |
3184 | clear_pending (EV_A_ (W)w); |
2052 | if (expect_false (!ev_is_active (w))) |
3185 | if (expect_false (!ev_is_active (w))) |
2053 | return; |
3186 | return; |
2054 | |
3187 | |
|
|
3188 | EV_FREQUENT_CHECK; |
|
|
3189 | |
2055 | #if EV_USE_INOTIFY |
3190 | #if EV_USE_INOTIFY |
2056 | infy_del (EV_A_ w); |
3191 | infy_del (EV_A_ w); |
2057 | #endif |
3192 | #endif |
|
|
3193 | |
|
|
3194 | if (ev_is_active (&w->timer)) |
|
|
3195 | { |
|
|
3196 | ev_ref (EV_A); |
2058 | ev_timer_stop (EV_A_ &w->timer); |
3197 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3198 | } |
2059 | |
3199 | |
2060 | ev_stop (EV_A_ (W)w); |
3200 | ev_stop (EV_A_ (W)w); |
|
|
3201 | |
|
|
3202 | EV_FREQUENT_CHECK; |
2061 | } |
3203 | } |
2062 | #endif |
3204 | #endif |
2063 | |
3205 | |
2064 | #if EV_IDLE_ENABLE |
3206 | #if EV_IDLE_ENABLE |
2065 | void |
3207 | void |
… | |
… | |
2067 | { |
3209 | { |
2068 | if (expect_false (ev_is_active (w))) |
3210 | if (expect_false (ev_is_active (w))) |
2069 | return; |
3211 | return; |
2070 | |
3212 | |
2071 | pri_adjust (EV_A_ (W)w); |
3213 | pri_adjust (EV_A_ (W)w); |
|
|
3214 | |
|
|
3215 | EV_FREQUENT_CHECK; |
2072 | |
3216 | |
2073 | { |
3217 | { |
2074 | int active = ++idlecnt [ABSPRI (w)]; |
3218 | int active = ++idlecnt [ABSPRI (w)]; |
2075 | |
3219 | |
2076 | ++idleall; |
3220 | ++idleall; |
2077 | ev_start (EV_A_ (W)w, active); |
3221 | ev_start (EV_A_ (W)w, active); |
2078 | |
3222 | |
2079 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
3223 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
2080 | idles [ABSPRI (w)][active - 1] = w; |
3224 | idles [ABSPRI (w)][active - 1] = w; |
2081 | } |
3225 | } |
|
|
3226 | |
|
|
3227 | EV_FREQUENT_CHECK; |
2082 | } |
3228 | } |
2083 | |
3229 | |
2084 | void |
3230 | void |
2085 | ev_idle_stop (EV_P_ ev_idle *w) |
3231 | ev_idle_stop (EV_P_ ev_idle *w) |
2086 | { |
3232 | { |
2087 | clear_pending (EV_A_ (W)w); |
3233 | clear_pending (EV_A_ (W)w); |
2088 | if (expect_false (!ev_is_active (w))) |
3234 | if (expect_false (!ev_is_active (w))) |
2089 | return; |
3235 | return; |
2090 | |
3236 | |
|
|
3237 | EV_FREQUENT_CHECK; |
|
|
3238 | |
2091 | { |
3239 | { |
2092 | int active = ((W)w)->active; |
3240 | int active = ev_active (w); |
2093 | |
3241 | |
2094 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
3242 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
2095 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
3243 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
2096 | |
3244 | |
2097 | ev_stop (EV_A_ (W)w); |
3245 | ev_stop (EV_A_ (W)w); |
2098 | --idleall; |
3246 | --idleall; |
2099 | } |
3247 | } |
|
|
3248 | |
|
|
3249 | EV_FREQUENT_CHECK; |
2100 | } |
3250 | } |
2101 | #endif |
3251 | #endif |
2102 | |
3252 | |
2103 | void |
3253 | void |
2104 | ev_prepare_start (EV_P_ ev_prepare *w) |
3254 | ev_prepare_start (EV_P_ ev_prepare *w) |
2105 | { |
3255 | { |
2106 | if (expect_false (ev_is_active (w))) |
3256 | if (expect_false (ev_is_active (w))) |
2107 | return; |
3257 | return; |
|
|
3258 | |
|
|
3259 | EV_FREQUENT_CHECK; |
2108 | |
3260 | |
2109 | ev_start (EV_A_ (W)w, ++preparecnt); |
3261 | ev_start (EV_A_ (W)w, ++preparecnt); |
2110 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
3262 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
2111 | prepares [preparecnt - 1] = w; |
3263 | prepares [preparecnt - 1] = w; |
|
|
3264 | |
|
|
3265 | EV_FREQUENT_CHECK; |
2112 | } |
3266 | } |
2113 | |
3267 | |
2114 | void |
3268 | void |
2115 | ev_prepare_stop (EV_P_ ev_prepare *w) |
3269 | ev_prepare_stop (EV_P_ ev_prepare *w) |
2116 | { |
3270 | { |
2117 | clear_pending (EV_A_ (W)w); |
3271 | clear_pending (EV_A_ (W)w); |
2118 | if (expect_false (!ev_is_active (w))) |
3272 | if (expect_false (!ev_is_active (w))) |
2119 | return; |
3273 | return; |
2120 | |
3274 | |
|
|
3275 | EV_FREQUENT_CHECK; |
|
|
3276 | |
2121 | { |
3277 | { |
2122 | int active = ((W)w)->active; |
3278 | int active = ev_active (w); |
|
|
3279 | |
2123 | prepares [active - 1] = prepares [--preparecnt]; |
3280 | prepares [active - 1] = prepares [--preparecnt]; |
2124 | ((W)prepares [active - 1])->active = active; |
3281 | ev_active (prepares [active - 1]) = active; |
2125 | } |
3282 | } |
2126 | |
3283 | |
2127 | ev_stop (EV_A_ (W)w); |
3284 | ev_stop (EV_A_ (W)w); |
|
|
3285 | |
|
|
3286 | EV_FREQUENT_CHECK; |
2128 | } |
3287 | } |
2129 | |
3288 | |
2130 | void |
3289 | void |
2131 | ev_check_start (EV_P_ ev_check *w) |
3290 | ev_check_start (EV_P_ ev_check *w) |
2132 | { |
3291 | { |
2133 | if (expect_false (ev_is_active (w))) |
3292 | if (expect_false (ev_is_active (w))) |
2134 | return; |
3293 | return; |
|
|
3294 | |
|
|
3295 | EV_FREQUENT_CHECK; |
2135 | |
3296 | |
2136 | ev_start (EV_A_ (W)w, ++checkcnt); |
3297 | ev_start (EV_A_ (W)w, ++checkcnt); |
2137 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
3298 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
2138 | checks [checkcnt - 1] = w; |
3299 | checks [checkcnt - 1] = w; |
|
|
3300 | |
|
|
3301 | EV_FREQUENT_CHECK; |
2139 | } |
3302 | } |
2140 | |
3303 | |
2141 | void |
3304 | void |
2142 | ev_check_stop (EV_P_ ev_check *w) |
3305 | ev_check_stop (EV_P_ ev_check *w) |
2143 | { |
3306 | { |
2144 | clear_pending (EV_A_ (W)w); |
3307 | clear_pending (EV_A_ (W)w); |
2145 | if (expect_false (!ev_is_active (w))) |
3308 | if (expect_false (!ev_is_active (w))) |
2146 | return; |
3309 | return; |
2147 | |
3310 | |
|
|
3311 | EV_FREQUENT_CHECK; |
|
|
3312 | |
2148 | { |
3313 | { |
2149 | int active = ((W)w)->active; |
3314 | int active = ev_active (w); |
|
|
3315 | |
2150 | checks [active - 1] = checks [--checkcnt]; |
3316 | checks [active - 1] = checks [--checkcnt]; |
2151 | ((W)checks [active - 1])->active = active; |
3317 | ev_active (checks [active - 1]) = active; |
2152 | } |
3318 | } |
2153 | |
3319 | |
2154 | ev_stop (EV_A_ (W)w); |
3320 | ev_stop (EV_A_ (W)w); |
|
|
3321 | |
|
|
3322 | EV_FREQUENT_CHECK; |
2155 | } |
3323 | } |
2156 | |
3324 | |
2157 | #if EV_EMBED_ENABLE |
3325 | #if EV_EMBED_ENABLE |
2158 | void noinline |
3326 | void noinline |
2159 | ev_embed_sweep (EV_P_ ev_embed *w) |
3327 | ev_embed_sweep (EV_P_ ev_embed *w) |
2160 | { |
3328 | { |
2161 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
3329 | ev_loop (w->other, EVLOOP_NONBLOCK); |
2162 | } |
3330 | } |
2163 | |
3331 | |
2164 | static void |
3332 | static void |
2165 | embed_cb (EV_P_ ev_io *io, int revents) |
3333 | embed_io_cb (EV_P_ ev_io *io, int revents) |
2166 | { |
3334 | { |
2167 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3335 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2168 | |
3336 | |
2169 | if (ev_cb (w)) |
3337 | if (ev_cb (w)) |
2170 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3338 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2171 | else |
3339 | else |
2172 | ev_embed_sweep (loop, w); |
3340 | ev_loop (w->other, EVLOOP_NONBLOCK); |
2173 | } |
3341 | } |
|
|
3342 | |
|
|
3343 | static void |
|
|
3344 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
3345 | { |
|
|
3346 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
3347 | |
|
|
3348 | { |
|
|
3349 | EV_P = w->other; |
|
|
3350 | |
|
|
3351 | while (fdchangecnt) |
|
|
3352 | { |
|
|
3353 | fd_reify (EV_A); |
|
|
3354 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
3355 | } |
|
|
3356 | } |
|
|
3357 | } |
|
|
3358 | |
|
|
3359 | static void |
|
|
3360 | embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) |
|
|
3361 | { |
|
|
3362 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
|
|
3363 | |
|
|
3364 | ev_embed_stop (EV_A_ w); |
|
|
3365 | |
|
|
3366 | { |
|
|
3367 | EV_P = w->other; |
|
|
3368 | |
|
|
3369 | ev_loop_fork (EV_A); |
|
|
3370 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
3371 | } |
|
|
3372 | |
|
|
3373 | ev_embed_start (EV_A_ w); |
|
|
3374 | } |
|
|
3375 | |
|
|
3376 | #if 0 |
|
|
3377 | static void |
|
|
3378 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
3379 | { |
|
|
3380 | ev_idle_stop (EV_A_ idle); |
|
|
3381 | } |
|
|
3382 | #endif |
2174 | |
3383 | |
2175 | void |
3384 | void |
2176 | ev_embed_start (EV_P_ ev_embed *w) |
3385 | ev_embed_start (EV_P_ ev_embed *w) |
2177 | { |
3386 | { |
2178 | if (expect_false (ev_is_active (w))) |
3387 | if (expect_false (ev_is_active (w))) |
2179 | return; |
3388 | return; |
2180 | |
3389 | |
2181 | { |
3390 | { |
2182 | struct ev_loop *loop = w->loop; |
3391 | EV_P = w->other; |
2183 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3392 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2184 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
3393 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
2185 | } |
3394 | } |
|
|
3395 | |
|
|
3396 | EV_FREQUENT_CHECK; |
2186 | |
3397 | |
2187 | ev_set_priority (&w->io, ev_priority (w)); |
3398 | ev_set_priority (&w->io, ev_priority (w)); |
2188 | ev_io_start (EV_A_ &w->io); |
3399 | ev_io_start (EV_A_ &w->io); |
2189 | |
3400 | |
|
|
3401 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
3402 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
3403 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
3404 | |
|
|
3405 | ev_fork_init (&w->fork, embed_fork_cb); |
|
|
3406 | ev_fork_start (EV_A_ &w->fork); |
|
|
3407 | |
|
|
3408 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
3409 | |
2190 | ev_start (EV_A_ (W)w, 1); |
3410 | ev_start (EV_A_ (W)w, 1); |
|
|
3411 | |
|
|
3412 | EV_FREQUENT_CHECK; |
2191 | } |
3413 | } |
2192 | |
3414 | |
2193 | void |
3415 | void |
2194 | ev_embed_stop (EV_P_ ev_embed *w) |
3416 | ev_embed_stop (EV_P_ ev_embed *w) |
2195 | { |
3417 | { |
2196 | clear_pending (EV_A_ (W)w); |
3418 | clear_pending (EV_A_ (W)w); |
2197 | if (expect_false (!ev_is_active (w))) |
3419 | if (expect_false (!ev_is_active (w))) |
2198 | return; |
3420 | return; |
2199 | |
3421 | |
|
|
3422 | EV_FREQUENT_CHECK; |
|
|
3423 | |
2200 | ev_io_stop (EV_A_ &w->io); |
3424 | ev_io_stop (EV_A_ &w->io); |
|
|
3425 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
3426 | ev_fork_stop (EV_A_ &w->fork); |
2201 | |
3427 | |
2202 | ev_stop (EV_A_ (W)w); |
3428 | EV_FREQUENT_CHECK; |
2203 | } |
3429 | } |
2204 | #endif |
3430 | #endif |
2205 | |
3431 | |
2206 | #if EV_FORK_ENABLE |
3432 | #if EV_FORK_ENABLE |
2207 | void |
3433 | void |
2208 | ev_fork_start (EV_P_ ev_fork *w) |
3434 | ev_fork_start (EV_P_ ev_fork *w) |
2209 | { |
3435 | { |
2210 | if (expect_false (ev_is_active (w))) |
3436 | if (expect_false (ev_is_active (w))) |
2211 | return; |
3437 | return; |
|
|
3438 | |
|
|
3439 | EV_FREQUENT_CHECK; |
2212 | |
3440 | |
2213 | ev_start (EV_A_ (W)w, ++forkcnt); |
3441 | ev_start (EV_A_ (W)w, ++forkcnt); |
2214 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
3442 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
2215 | forks [forkcnt - 1] = w; |
3443 | forks [forkcnt - 1] = w; |
|
|
3444 | |
|
|
3445 | EV_FREQUENT_CHECK; |
2216 | } |
3446 | } |
2217 | |
3447 | |
2218 | void |
3448 | void |
2219 | ev_fork_stop (EV_P_ ev_fork *w) |
3449 | ev_fork_stop (EV_P_ ev_fork *w) |
2220 | { |
3450 | { |
2221 | clear_pending (EV_A_ (W)w); |
3451 | clear_pending (EV_A_ (W)w); |
2222 | if (expect_false (!ev_is_active (w))) |
3452 | if (expect_false (!ev_is_active (w))) |
2223 | return; |
3453 | return; |
2224 | |
3454 | |
|
|
3455 | EV_FREQUENT_CHECK; |
|
|
3456 | |
2225 | { |
3457 | { |
2226 | int active = ((W)w)->active; |
3458 | int active = ev_active (w); |
|
|
3459 | |
2227 | forks [active - 1] = forks [--forkcnt]; |
3460 | forks [active - 1] = forks [--forkcnt]; |
2228 | ((W)forks [active - 1])->active = active; |
3461 | ev_active (forks [active - 1]) = active; |
2229 | } |
3462 | } |
2230 | |
3463 | |
2231 | ev_stop (EV_A_ (W)w); |
3464 | ev_stop (EV_A_ (W)w); |
|
|
3465 | |
|
|
3466 | EV_FREQUENT_CHECK; |
|
|
3467 | } |
|
|
3468 | #endif |
|
|
3469 | |
|
|
3470 | #if EV_ASYNC_ENABLE |
|
|
3471 | void |
|
|
3472 | ev_async_start (EV_P_ ev_async *w) |
|
|
3473 | { |
|
|
3474 | if (expect_false (ev_is_active (w))) |
|
|
3475 | return; |
|
|
3476 | |
|
|
3477 | evpipe_init (EV_A); |
|
|
3478 | |
|
|
3479 | EV_FREQUENT_CHECK; |
|
|
3480 | |
|
|
3481 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
3482 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
3483 | asyncs [asynccnt - 1] = w; |
|
|
3484 | |
|
|
3485 | EV_FREQUENT_CHECK; |
|
|
3486 | } |
|
|
3487 | |
|
|
3488 | void |
|
|
3489 | ev_async_stop (EV_P_ ev_async *w) |
|
|
3490 | { |
|
|
3491 | clear_pending (EV_A_ (W)w); |
|
|
3492 | if (expect_false (!ev_is_active (w))) |
|
|
3493 | return; |
|
|
3494 | |
|
|
3495 | EV_FREQUENT_CHECK; |
|
|
3496 | |
|
|
3497 | { |
|
|
3498 | int active = ev_active (w); |
|
|
3499 | |
|
|
3500 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
3501 | ev_active (asyncs [active - 1]) = active; |
|
|
3502 | } |
|
|
3503 | |
|
|
3504 | ev_stop (EV_A_ (W)w); |
|
|
3505 | |
|
|
3506 | EV_FREQUENT_CHECK; |
|
|
3507 | } |
|
|
3508 | |
|
|
3509 | void |
|
|
3510 | ev_async_send (EV_P_ ev_async *w) |
|
|
3511 | { |
|
|
3512 | w->sent = 1; |
|
|
3513 | evpipe_write (EV_A_ &async_pending); |
2232 | } |
3514 | } |
2233 | #endif |
3515 | #endif |
2234 | |
3516 | |
2235 | /*****************************************************************************/ |
3517 | /*****************************************************************************/ |
2236 | |
3518 | |
… | |
… | |
2246 | once_cb (EV_P_ struct ev_once *once, int revents) |
3528 | once_cb (EV_P_ struct ev_once *once, int revents) |
2247 | { |
3529 | { |
2248 | void (*cb)(int revents, void *arg) = once->cb; |
3530 | void (*cb)(int revents, void *arg) = once->cb; |
2249 | void *arg = once->arg; |
3531 | void *arg = once->arg; |
2250 | |
3532 | |
2251 | ev_io_stop (EV_A_ &once->io); |
3533 | ev_io_stop (EV_A_ &once->io); |
2252 | ev_timer_stop (EV_A_ &once->to); |
3534 | ev_timer_stop (EV_A_ &once->to); |
2253 | ev_free (once); |
3535 | ev_free (once); |
2254 | |
3536 | |
2255 | cb (revents, arg); |
3537 | cb (revents, arg); |
2256 | } |
3538 | } |
2257 | |
3539 | |
2258 | static void |
3540 | static void |
2259 | once_cb_io (EV_P_ ev_io *w, int revents) |
3541 | once_cb_io (EV_P_ ev_io *w, int revents) |
2260 | { |
3542 | { |
2261 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
3543 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)); |
|
|
3544 | |
|
|
3545 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->to)); |
2262 | } |
3546 | } |
2263 | |
3547 | |
2264 | static void |
3548 | static void |
2265 | once_cb_to (EV_P_ ev_timer *w, int revents) |
3549 | once_cb_to (EV_P_ ev_timer *w, int revents) |
2266 | { |
3550 | { |
2267 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
3551 | struct ev_once *once = (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)); |
|
|
3552 | |
|
|
3553 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
2268 | } |
3554 | } |
2269 | |
3555 | |
2270 | void |
3556 | void |
2271 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
3557 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2272 | { |
3558 | { |
… | |
… | |
2294 | ev_timer_set (&once->to, timeout, 0.); |
3580 | ev_timer_set (&once->to, timeout, 0.); |
2295 | ev_timer_start (EV_A_ &once->to); |
3581 | ev_timer_start (EV_A_ &once->to); |
2296 | } |
3582 | } |
2297 | } |
3583 | } |
2298 | |
3584 | |
|
|
3585 | /*****************************************************************************/ |
|
|
3586 | |
|
|
3587 | #if EV_WALK_ENABLE |
|
|
3588 | void |
|
|
3589 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
|
|
3590 | { |
|
|
3591 | int i, j; |
|
|
3592 | ev_watcher_list *wl, *wn; |
|
|
3593 | |
|
|
3594 | if (types & (EV_IO | EV_EMBED)) |
|
|
3595 | for (i = 0; i < anfdmax; ++i) |
|
|
3596 | for (wl = anfds [i].head; wl; ) |
|
|
3597 | { |
|
|
3598 | wn = wl->next; |
|
|
3599 | |
|
|
3600 | #if EV_EMBED_ENABLE |
|
|
3601 | if (ev_cb ((ev_io *)wl) == embed_io_cb) |
|
|
3602 | { |
|
|
3603 | if (types & EV_EMBED) |
|
|
3604 | cb (EV_A_ EV_EMBED, ((char *)wl) - offsetof (struct ev_embed, io)); |
|
|
3605 | } |
|
|
3606 | else |
|
|
3607 | #endif |
|
|
3608 | #if EV_USE_INOTIFY |
|
|
3609 | if (ev_cb ((ev_io *)wl) == infy_cb) |
|
|
3610 | ; |
|
|
3611 | else |
|
|
3612 | #endif |
|
|
3613 | if ((ev_io *)wl != &pipe_w) |
|
|
3614 | if (types & EV_IO) |
|
|
3615 | cb (EV_A_ EV_IO, wl); |
|
|
3616 | |
|
|
3617 | wl = wn; |
|
|
3618 | } |
|
|
3619 | |
|
|
3620 | if (types & (EV_TIMER | EV_STAT)) |
|
|
3621 | for (i = timercnt + HEAP0; i-- > HEAP0; ) |
|
|
3622 | #if EV_STAT_ENABLE |
|
|
3623 | /*TODO: timer is not always active*/ |
|
|
3624 | if (ev_cb ((ev_timer *)ANHE_w (timers [i])) == stat_timer_cb) |
|
|
3625 | { |
|
|
3626 | if (types & EV_STAT) |
|
|
3627 | cb (EV_A_ EV_STAT, ((char *)ANHE_w (timers [i])) - offsetof (struct ev_stat, timer)); |
|
|
3628 | } |
|
|
3629 | else |
|
|
3630 | #endif |
|
|
3631 | if (types & EV_TIMER) |
|
|
3632 | cb (EV_A_ EV_TIMER, ANHE_w (timers [i])); |
|
|
3633 | |
|
|
3634 | #if EV_PERIODIC_ENABLE |
|
|
3635 | if (types & EV_PERIODIC) |
|
|
3636 | for (i = periodiccnt + HEAP0; i-- > HEAP0; ) |
|
|
3637 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
|
|
3638 | #endif |
|
|
3639 | |
|
|
3640 | #if EV_IDLE_ENABLE |
|
|
3641 | if (types & EV_IDLE) |
|
|
3642 | for (j = NUMPRI; i--; ) |
|
|
3643 | for (i = idlecnt [j]; i--; ) |
|
|
3644 | cb (EV_A_ EV_IDLE, idles [j][i]); |
|
|
3645 | #endif |
|
|
3646 | |
|
|
3647 | #if EV_FORK_ENABLE |
|
|
3648 | if (types & EV_FORK) |
|
|
3649 | for (i = forkcnt; i--; ) |
|
|
3650 | if (ev_cb (forks [i]) != embed_fork_cb) |
|
|
3651 | cb (EV_A_ EV_FORK, forks [i]); |
|
|
3652 | #endif |
|
|
3653 | |
|
|
3654 | #if EV_ASYNC_ENABLE |
|
|
3655 | if (types & EV_ASYNC) |
|
|
3656 | for (i = asynccnt; i--; ) |
|
|
3657 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
|
|
3658 | #endif |
|
|
3659 | |
|
|
3660 | if (types & EV_PREPARE) |
|
|
3661 | for (i = preparecnt; i--; ) |
|
|
3662 | #if EV_EMBED_ENABLE |
|
|
3663 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
|
|
3664 | #endif |
|
|
3665 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3666 | |
|
|
3667 | if (types & EV_CHECK) |
|
|
3668 | for (i = checkcnt; i--; ) |
|
|
3669 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3670 | |
|
|
3671 | if (types & EV_SIGNAL) |
|
|
3672 | for (i = 0; i < EV_NSIG - 1; ++i) |
|
|
3673 | for (wl = signals [i].head; wl; ) |
|
|
3674 | { |
|
|
3675 | wn = wl->next; |
|
|
3676 | cb (EV_A_ EV_SIGNAL, wl); |
|
|
3677 | wl = wn; |
|
|
3678 | } |
|
|
3679 | |
|
|
3680 | if (types & EV_CHILD) |
|
|
3681 | for (i = EV_PID_HASHSIZE; i--; ) |
|
|
3682 | for (wl = childs [i]; wl; ) |
|
|
3683 | { |
|
|
3684 | wn = wl->next; |
|
|
3685 | cb (EV_A_ EV_CHILD, wl); |
|
|
3686 | wl = wn; |
|
|
3687 | } |
|
|
3688 | /* EV_STAT 0x00001000 /* stat data changed */ |
|
|
3689 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
|
|
3690 | } |
|
|
3691 | #endif |
|
|
3692 | |
|
|
3693 | #if EV_MULTIPLICITY |
|
|
3694 | #include "ev_wrap.h" |
|
|
3695 | #endif |
|
|
3696 | |
2299 | #ifdef __cplusplus |
3697 | #ifdef __cplusplus |
2300 | } |
3698 | } |
2301 | #endif |
3699 | #endif |
2302 | |
3700 | |