1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * modification, are permitted provided that the following conditions are |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * met: |
9 | * |
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10 | * 1. Redistributions of source code must retain the above copyright notice, |
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11 | * this list of conditions and the following disclaimer. |
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12 | * |
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13 | * 2. Redistributions in binary form must reproduce the above copyright |
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14 | * notice, this list of conditions and the following disclaimer in the |
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15 | * documentation and/or other materials provided with the distribution. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
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18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
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19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
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20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
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21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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22 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
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23 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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24 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
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25 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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26 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
10 | * |
27 | * |
11 | * * Redistributions of source code must retain the above copyright |
28 | * Alternatively, the contents of this file may be used under the terms of |
12 | * notice, this list of conditions and the following disclaimer. |
29 | * the GNU General Public License ("GPL") version 2 or any later version, |
13 | * |
30 | * in which case the provisions of the GPL are applicable instead of |
14 | * * Redistributions in binary form must reproduce the above |
31 | * the above. If you wish to allow the use of your version of this file |
15 | * copyright notice, this list of conditions and the following |
32 | * only under the terms of the GPL and not to allow others to use your |
16 | * disclaimer in the documentation and/or other materials provided |
33 | * version of this file under the BSD license, indicate your decision |
17 | * with the distribution. |
34 | * by deleting the provisions above and replace them with the notice |
18 | * |
35 | * and other provisions required by the GPL. If you do not delete the |
19 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
36 | * provisions above, a recipient may use your version of this file under |
20 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
37 | * either the BSD or the GPL. |
21 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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22 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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23 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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24 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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25 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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30 | */ |
38 | */ |
31 | |
39 | |
32 | #ifdef __cplusplus |
40 | #ifdef __cplusplus |
33 | extern "C" { |
41 | extern "C" { |
34 | #endif |
42 | #endif |
35 | |
43 | |
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44 | /* this big block deduces configuration from config.h */ |
36 | #ifndef EV_STANDALONE |
45 | #ifndef EV_STANDALONE |
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" |
… | |
… | |
51 | # ifndef EV_USE_MONOTONIC |
60 | # ifndef EV_USE_MONOTONIC |
52 | # define EV_USE_MONOTONIC 0 |
61 | # define EV_USE_MONOTONIC 0 |
53 | # endif |
62 | # endif |
54 | # ifndef EV_USE_REALTIME |
63 | # ifndef EV_USE_REALTIME |
55 | # define EV_USE_REALTIME 0 |
64 | # define EV_USE_REALTIME 0 |
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65 | # endif |
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66 | # endif |
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67 | |
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68 | # ifndef EV_USE_NANOSLEEP |
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69 | # if HAVE_NANOSLEEP |
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70 | # define EV_USE_NANOSLEEP 1 |
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71 | # else |
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72 | # define EV_USE_NANOSLEEP 0 |
56 | # endif |
73 | # endif |
57 | # endif |
74 | # endif |
58 | |
75 | |
59 | # ifndef EV_USE_SELECT |
76 | # ifndef EV_USE_SELECT |
60 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
77 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
… | |
… | |
94 | # else |
111 | # else |
95 | # define EV_USE_PORT 0 |
112 | # define EV_USE_PORT 0 |
96 | # endif |
113 | # endif |
97 | # endif |
114 | # endif |
98 | |
115 | |
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116 | # ifndef EV_USE_INOTIFY |
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117 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
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118 | # define EV_USE_INOTIFY 1 |
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119 | # else |
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120 | # define EV_USE_INOTIFY 0 |
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121 | # endif |
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122 | # endif |
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123 | |
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124 | # ifndef EV_USE_EVENTFD |
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125 | # if HAVE_EVENTFD |
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126 | # define EV_USE_EVENTFD 1 |
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127 | # else |
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128 | # define EV_USE_EVENTFD 0 |
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129 | # endif |
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130 | # endif |
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131 | |
99 | #endif |
132 | #endif |
100 | |
133 | |
101 | #include <math.h> |
134 | #include <math.h> |
102 | #include <stdlib.h> |
135 | #include <stdlib.h> |
103 | #include <fcntl.h> |
136 | #include <fcntl.h> |
… | |
… | |
109 | #include <errno.h> |
142 | #include <errno.h> |
110 | #include <sys/types.h> |
143 | #include <sys/types.h> |
111 | #include <time.h> |
144 | #include <time.h> |
112 | |
145 | |
113 | #include <signal.h> |
146 | #include <signal.h> |
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147 | |
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148 | #ifdef EV_H |
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149 | # include EV_H |
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150 | #else |
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151 | # include "ev.h" |
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152 | #endif |
114 | |
153 | |
115 | #ifndef _WIN32 |
154 | #ifndef _WIN32 |
116 | # include <sys/time.h> |
155 | # include <sys/time.h> |
117 | # include <sys/wait.h> |
156 | # include <sys/wait.h> |
118 | # include <unistd.h> |
157 | # include <unistd.h> |
119 | #else |
158 | #else |
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159 | # include <io.h> |
120 | # define WIN32_LEAN_AND_MEAN |
160 | # define WIN32_LEAN_AND_MEAN |
121 | # include <windows.h> |
161 | # include <windows.h> |
122 | # ifndef EV_SELECT_IS_WINSOCKET |
162 | # ifndef EV_SELECT_IS_WINSOCKET |
123 | # define EV_SELECT_IS_WINSOCKET 1 |
163 | # define EV_SELECT_IS_WINSOCKET 1 |
124 | # endif |
164 | # endif |
125 | #endif |
165 | #endif |
126 | |
166 | |
127 | /**/ |
167 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
128 | |
168 | |
129 | #ifndef EV_USE_MONOTONIC |
169 | #ifndef EV_USE_MONOTONIC |
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170 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
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171 | # define EV_USE_MONOTONIC 1 |
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172 | # else |
130 | # define EV_USE_MONOTONIC 0 |
173 | # define EV_USE_MONOTONIC 0 |
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174 | # endif |
131 | #endif |
175 | #endif |
132 | |
176 | |
133 | #ifndef EV_USE_REALTIME |
177 | #ifndef EV_USE_REALTIME |
134 | # define EV_USE_REALTIME 0 |
178 | # define EV_USE_REALTIME 0 |
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179 | #endif |
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180 | |
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181 | #ifndef EV_USE_NANOSLEEP |
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182 | # if _POSIX_C_SOURCE >= 199309L |
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183 | # define EV_USE_NANOSLEEP 1 |
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184 | # else |
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185 | # define EV_USE_NANOSLEEP 0 |
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186 | # endif |
135 | #endif |
187 | #endif |
136 | |
188 | |
137 | #ifndef EV_USE_SELECT |
189 | #ifndef EV_USE_SELECT |
138 | # define EV_USE_SELECT 1 |
190 | # define EV_USE_SELECT 1 |
139 | #endif |
191 | #endif |
… | |
… | |
145 | # define EV_USE_POLL 1 |
197 | # define EV_USE_POLL 1 |
146 | # endif |
198 | # endif |
147 | #endif |
199 | #endif |
148 | |
200 | |
149 | #ifndef EV_USE_EPOLL |
201 | #ifndef EV_USE_EPOLL |
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202 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
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203 | # define EV_USE_EPOLL 1 |
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204 | # else |
150 | # define EV_USE_EPOLL 0 |
205 | # define EV_USE_EPOLL 0 |
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206 | # endif |
151 | #endif |
207 | #endif |
152 | |
208 | |
153 | #ifndef EV_USE_KQUEUE |
209 | #ifndef EV_USE_KQUEUE |
154 | # define EV_USE_KQUEUE 0 |
210 | # define EV_USE_KQUEUE 0 |
155 | #endif |
211 | #endif |
156 | |
212 | |
157 | #ifndef EV_USE_PORT |
213 | #ifndef EV_USE_PORT |
158 | # define EV_USE_PORT 0 |
214 | # define EV_USE_PORT 0 |
159 | #endif |
215 | #endif |
160 | |
216 | |
161 | /**/ |
217 | #ifndef EV_USE_INOTIFY |
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218 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) |
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219 | # define EV_USE_INOTIFY 1 |
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220 | # else |
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221 | # define EV_USE_INOTIFY 0 |
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222 | # endif |
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223 | #endif |
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224 | |
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225 | #ifndef EV_PID_HASHSIZE |
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226 | # if EV_MINIMAL |
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227 | # define EV_PID_HASHSIZE 1 |
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228 | # else |
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229 | # define EV_PID_HASHSIZE 16 |
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230 | # endif |
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231 | #endif |
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232 | |
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233 | #ifndef EV_INOTIFY_HASHSIZE |
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234 | # if EV_MINIMAL |
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235 | # define EV_INOTIFY_HASHSIZE 1 |
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236 | # else |
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237 | # define EV_INOTIFY_HASHSIZE 16 |
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238 | # endif |
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239 | #endif |
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240 | |
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241 | #ifndef EV_USE_EVENTFD |
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242 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
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243 | # define EV_USE_EVENTFD 1 |
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244 | # else |
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245 | # define EV_USE_EVENTFD 0 |
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246 | # endif |
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247 | #endif |
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248 | |
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249 | #if 0 /* debugging */ |
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250 | # define EV_VERIFY 3 |
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251 | # define EV_USE_4HEAP 1 |
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252 | # define EV_HEAP_CACHE_AT 1 |
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253 | #endif |
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254 | |
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255 | #ifndef EV_VERIFY |
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256 | # define EV_VERIFY !EV_MINIMAL |
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257 | #endif |
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258 | |
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259 | #ifndef EV_USE_4HEAP |
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260 | # define EV_USE_4HEAP !EV_MINIMAL |
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261 | #endif |
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262 | |
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263 | #ifndef EV_HEAP_CACHE_AT |
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264 | # define EV_HEAP_CACHE_AT !EV_MINIMAL |
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265 | #endif |
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266 | |
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267 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
162 | |
268 | |
163 | #ifndef CLOCK_MONOTONIC |
269 | #ifndef CLOCK_MONOTONIC |
164 | # undef EV_USE_MONOTONIC |
270 | # undef EV_USE_MONOTONIC |
165 | # define EV_USE_MONOTONIC 0 |
271 | # define EV_USE_MONOTONIC 0 |
166 | #endif |
272 | #endif |
… | |
… | |
168 | #ifndef CLOCK_REALTIME |
274 | #ifndef CLOCK_REALTIME |
169 | # undef EV_USE_REALTIME |
275 | # undef EV_USE_REALTIME |
170 | # define EV_USE_REALTIME 0 |
276 | # define EV_USE_REALTIME 0 |
171 | #endif |
277 | #endif |
172 | |
278 | |
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279 | #if !EV_STAT_ENABLE |
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280 | # undef EV_USE_INOTIFY |
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281 | # define EV_USE_INOTIFY 0 |
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282 | #endif |
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283 | |
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284 | #if !EV_USE_NANOSLEEP |
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285 | # ifndef _WIN32 |
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286 | # include <sys/select.h> |
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287 | # endif |
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288 | #endif |
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289 | |
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290 | #if EV_USE_INOTIFY |
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291 | # include <sys/inotify.h> |
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292 | #endif |
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293 | |
173 | #if EV_SELECT_IS_WINSOCKET |
294 | #if EV_SELECT_IS_WINSOCKET |
174 | # include <winsock.h> |
295 | # include <winsock.h> |
175 | #endif |
296 | #endif |
176 | |
297 | |
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298 | #if EV_USE_EVENTFD |
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299 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
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300 | # include <stdint.h> |
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301 | # ifdef __cplusplus |
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302 | extern "C" { |
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303 | # endif |
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304 | int eventfd (unsigned int initval, int flags); |
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305 | # ifdef __cplusplus |
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306 | } |
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307 | # endif |
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308 | #endif |
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309 | |
177 | /**/ |
310 | /**/ |
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311 | |
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312 | #if EV_VERIFY >= 3 |
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313 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
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314 | #else |
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315 | # define EV_FREQUENT_CHECK do { } while (0) |
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316 | #endif |
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317 | |
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318 | /* |
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319 | * This is used to avoid floating point rounding problems. |
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320 | * It is added to ev_rt_now when scheduling periodics |
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321 | * to ensure progress, time-wise, even when rounding |
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322 | * errors are against us. |
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323 | * This value is good at least till the year 4000. |
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324 | * Better solutions welcome. |
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325 | */ |
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326 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
178 | |
327 | |
179 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
328 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
180 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
329 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
181 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
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182 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */ |
330 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
183 | |
331 | |
184 | #ifdef EV_H |
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185 | # include EV_H |
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186 | #else |
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187 | # include "ev.h" |
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188 | #endif |
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189 | |
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190 | #if __GNUC__ >= 3 |
332 | #if __GNUC__ >= 4 |
191 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
333 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
192 | # define inline_size static inline /* inline for codesize */ |
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193 | # if EV_MINIMAL |
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194 | # define noinline __attribute__ ((noinline)) |
334 | # define noinline __attribute__ ((noinline)) |
195 | # define inline_speed static noinline |
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196 | # else |
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197 | # define noinline |
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198 | # define inline_speed static inline |
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199 | # endif |
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200 | #else |
335 | #else |
201 | # define expect(expr,value) (expr) |
336 | # define expect(expr,value) (expr) |
202 | # define inline_speed static |
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203 | # define inline_minimal static |
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204 | # define noinline |
337 | # define noinline |
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338 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
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339 | # define inline |
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340 | # endif |
205 | #endif |
341 | #endif |
206 | |
342 | |
207 | #define expect_false(expr) expect ((expr) != 0, 0) |
343 | #define expect_false(expr) expect ((expr) != 0, 0) |
208 | #define expect_true(expr) expect ((expr) != 0, 1) |
344 | #define expect_true(expr) expect ((expr) != 0, 1) |
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345 | #define inline_size static inline |
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346 | |
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347 | #if EV_MINIMAL |
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348 | # define inline_speed static noinline |
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349 | #else |
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350 | # define inline_speed static inline |
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351 | #endif |
209 | |
352 | |
210 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
353 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
211 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
354 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
212 | |
355 | |
213 | #define EMPTY0 /* required for microsofts broken pseudo-c compiler */ |
356 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
214 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
357 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
215 | |
358 | |
216 | typedef ev_watcher *W; |
359 | typedef ev_watcher *W; |
217 | typedef ev_watcher_list *WL; |
360 | typedef ev_watcher_list *WL; |
218 | typedef ev_watcher_time *WT; |
361 | typedef ev_watcher_time *WT; |
219 | |
362 | |
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363 | #define ev_active(w) ((W)(w))->active |
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364 | #define ev_at(w) ((WT)(w))->at |
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365 | |
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366 | #if EV_USE_MONOTONIC |
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367 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
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368 | /* giving it a reasonably high chance of working on typical architetcures */ |
220 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
369 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
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370 | #endif |
221 | |
371 | |
222 | #ifdef _WIN32 |
372 | #ifdef _WIN32 |
223 | # include "ev_win32.c" |
373 | # include "ev_win32.c" |
224 | #endif |
374 | #endif |
225 | |
375 | |
… | |
… | |
246 | perror (msg); |
396 | perror (msg); |
247 | abort (); |
397 | abort (); |
248 | } |
398 | } |
249 | } |
399 | } |
250 | |
400 | |
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401 | static void * |
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402 | ev_realloc_emul (void *ptr, long size) |
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403 | { |
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404 | /* some systems, notably openbsd and darwin, fail to properly |
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405 | * implement realloc (x, 0) (as required by both ansi c-98 and |
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406 | * the single unix specification, so work around them here. |
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407 | */ |
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408 | |
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409 | if (size) |
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410 | return realloc (ptr, size); |
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411 | |
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412 | free (ptr); |
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413 | return 0; |
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414 | } |
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415 | |
251 | static void *(*alloc)(void *ptr, long size); |
416 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
252 | |
417 | |
253 | void |
418 | void |
254 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
419 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
255 | { |
420 | { |
256 | alloc = cb; |
421 | alloc = cb; |
257 | } |
422 | } |
258 | |
423 | |
259 | static void * |
424 | inline_speed void * |
260 | ev_realloc (void *ptr, long size) |
425 | ev_realloc (void *ptr, long size) |
261 | { |
426 | { |
262 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
427 | ptr = alloc (ptr, size); |
263 | |
428 | |
264 | if (!ptr && size) |
429 | if (!ptr && size) |
265 | { |
430 | { |
266 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
431 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
267 | abort (); |
432 | abort (); |
… | |
… | |
288 | typedef struct |
453 | typedef struct |
289 | { |
454 | { |
290 | W w; |
455 | W w; |
291 | int events; |
456 | int events; |
292 | } ANPENDING; |
457 | } ANPENDING; |
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458 | |
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459 | #if EV_USE_INOTIFY |
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460 | /* hash table entry per inotify-id */ |
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461 | typedef struct |
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462 | { |
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463 | WL head; |
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464 | } ANFS; |
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465 | #endif |
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466 | |
|
|
467 | /* Heap Entry */ |
|
|
468 | #if EV_HEAP_CACHE_AT |
|
|
469 | typedef struct { |
|
|
470 | ev_tstamp at; |
|
|
471 | WT w; |
|
|
472 | } ANHE; |
|
|
473 | |
|
|
474 | #define ANHE_w(he) (he).w /* access watcher, read-write */ |
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|
475 | #define ANHE_at(he) (he).at /* access cached at, read-only */ |
|
|
476 | #define ANHE_at_cache(he) (he).at = (he).w->at /* update at from watcher */ |
|
|
477 | #else |
|
|
478 | typedef WT ANHE; |
|
|
479 | |
|
|
480 | #define ANHE_w(he) (he) |
|
|
481 | #define ANHE_at(he) (he)->at |
|
|
482 | #define ANHE_at_cache(he) |
|
|
483 | #endif |
293 | |
484 | |
294 | #if EV_MULTIPLICITY |
485 | #if EV_MULTIPLICITY |
295 | |
486 | |
296 | struct ev_loop |
487 | struct ev_loop |
297 | { |
488 | { |
… | |
… | |
354 | { |
545 | { |
355 | return ev_rt_now; |
546 | return ev_rt_now; |
356 | } |
547 | } |
357 | #endif |
548 | #endif |
358 | |
549 | |
359 | #define array_roundsize(type,n) (((n) | 4) & ~3) |
550 | void |
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|
551 | ev_sleep (ev_tstamp delay) |
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|
552 | { |
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|
553 | if (delay > 0.) |
|
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554 | { |
|
|
555 | #if EV_USE_NANOSLEEP |
|
|
556 | struct timespec ts; |
|
|
557 | |
|
|
558 | ts.tv_sec = (time_t)delay; |
|
|
559 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
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560 | |
|
|
561 | nanosleep (&ts, 0); |
|
|
562 | #elif defined(_WIN32) |
|
|
563 | Sleep ((unsigned long)(delay * 1e3)); |
|
|
564 | #else |
|
|
565 | struct timeval tv; |
|
|
566 | |
|
|
567 | tv.tv_sec = (time_t)delay; |
|
|
568 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
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|
569 | |
|
|
570 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
|
|
571 | /* somehting nto guaranteed by newer posix versions, but guaranteed */ |
|
|
572 | /* by older ones */ |
|
|
573 | select (0, 0, 0, 0, &tv); |
|
|
574 | #endif |
|
|
575 | } |
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|
576 | } |
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|
577 | |
|
|
578 | /*****************************************************************************/ |
|
|
579 | |
|
|
580 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
|
|
581 | |
|
|
582 | int inline_size |
|
|
583 | array_nextsize (int elem, int cur, int cnt) |
|
|
584 | { |
|
|
585 | int ncur = cur + 1; |
|
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586 | |
|
|
587 | do |
|
|
588 | ncur <<= 1; |
|
|
589 | while (cnt > ncur); |
|
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590 | |
|
|
591 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
|
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592 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
|
|
593 | { |
|
|
594 | ncur *= elem; |
|
|
595 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
|
|
596 | ncur = ncur - sizeof (void *) * 4; |
|
|
597 | ncur /= elem; |
|
|
598 | } |
|
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599 | |
|
|
600 | return ncur; |
|
|
601 | } |
|
|
602 | |
|
|
603 | static noinline void * |
|
|
604 | array_realloc (int elem, void *base, int *cur, int cnt) |
|
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605 | { |
|
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606 | *cur = array_nextsize (elem, *cur, cnt); |
|
|
607 | return ev_realloc (base, elem * *cur); |
|
|
608 | } |
360 | |
609 | |
361 | #define array_needsize(type,base,cur,cnt,init) \ |
610 | #define array_needsize(type,base,cur,cnt,init) \ |
362 | if (expect_false ((cnt) > cur)) \ |
611 | if (expect_false ((cnt) > (cur))) \ |
363 | { \ |
612 | { \ |
364 | int newcnt = cur; \ |
613 | int ocur_ = (cur); \ |
365 | do \ |
614 | (base) = (type *)array_realloc \ |
366 | { \ |
615 | (sizeof (type), (base), &(cur), (cnt)); \ |
367 | newcnt = array_roundsize (type, newcnt << 1); \ |
616 | init ((base) + (ocur_), (cur) - ocur_); \ |
368 | } \ |
|
|
369 | while ((cnt) > newcnt); \ |
|
|
370 | \ |
|
|
371 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
|
|
372 | init (base + cur, newcnt - cur); \ |
|
|
373 | cur = newcnt; \ |
|
|
374 | } |
617 | } |
375 | |
618 | |
|
|
619 | #if 0 |
376 | #define array_slim(type,stem) \ |
620 | #define array_slim(type,stem) \ |
377 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
621 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
378 | { \ |
622 | { \ |
379 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
623 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
380 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
624 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
381 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
625 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
382 | } |
626 | } |
|
|
627 | #endif |
383 | |
628 | |
384 | #define array_free(stem, idx) \ |
629 | #define array_free(stem, idx) \ |
385 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
630 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
386 | |
631 | |
387 | /*****************************************************************************/ |
632 | /*****************************************************************************/ |
388 | |
633 | |
389 | void noinline |
634 | void noinline |
390 | ev_feed_event (EV_P_ void *w, int revents) |
635 | ev_feed_event (EV_P_ void *w, int revents) |
391 | { |
636 | { |
392 | W w_ = (W)w; |
637 | W w_ = (W)w; |
|
|
638 | int pri = ABSPRI (w_); |
393 | |
639 | |
394 | if (expect_false (w_->pending)) |
640 | if (expect_false (w_->pending)) |
|
|
641 | pendings [pri][w_->pending - 1].events |= revents; |
|
|
642 | else |
395 | { |
643 | { |
|
|
644 | w_->pending = ++pendingcnt [pri]; |
|
|
645 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
|
|
646 | pendings [pri][w_->pending - 1].w = w_; |
396 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
647 | pendings [pri][w_->pending - 1].events = revents; |
397 | return; |
|
|
398 | } |
648 | } |
399 | |
|
|
400 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
|
|
401 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2); |
|
|
402 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
|
|
403 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
|
|
404 | } |
649 | } |
405 | |
650 | |
406 | void inline_size |
651 | void inline_speed |
407 | queue_events (EV_P_ W *events, int eventcnt, int type) |
652 | queue_events (EV_P_ W *events, int eventcnt, int type) |
408 | { |
653 | { |
409 | int i; |
654 | int i; |
410 | |
655 | |
411 | for (i = 0; i < eventcnt; ++i) |
656 | for (i = 0; i < eventcnt; ++i) |
… | |
… | |
443 | } |
688 | } |
444 | |
689 | |
445 | void |
690 | void |
446 | ev_feed_fd_event (EV_P_ int fd, int revents) |
691 | ev_feed_fd_event (EV_P_ int fd, int revents) |
447 | { |
692 | { |
|
|
693 | if (fd >= 0 && fd < anfdmax) |
448 | fd_event (EV_A_ fd, revents); |
694 | fd_event (EV_A_ fd, revents); |
449 | } |
695 | } |
450 | |
696 | |
451 | void inline_size |
697 | void inline_size |
452 | fd_reify (EV_P) |
698 | fd_reify (EV_P) |
453 | { |
699 | { |
… | |
… | |
457 | { |
703 | { |
458 | int fd = fdchanges [i]; |
704 | int fd = fdchanges [i]; |
459 | ANFD *anfd = anfds + fd; |
705 | ANFD *anfd = anfds + fd; |
460 | ev_io *w; |
706 | ev_io *w; |
461 | |
707 | |
462 | int events = 0; |
708 | unsigned char events = 0; |
463 | |
709 | |
464 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
710 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
465 | events |= w->events; |
711 | events |= (unsigned char)w->events; |
466 | |
712 | |
467 | #if EV_SELECT_IS_WINSOCKET |
713 | #if EV_SELECT_IS_WINSOCKET |
468 | if (events) |
714 | if (events) |
469 | { |
715 | { |
470 | unsigned long argp; |
716 | unsigned long arg; |
|
|
717 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
718 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
719 | #else |
471 | anfd->handle = _get_osfhandle (fd); |
720 | anfd->handle = _get_osfhandle (fd); |
|
|
721 | #endif |
472 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
722 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
473 | } |
723 | } |
474 | #endif |
724 | #endif |
475 | |
725 | |
|
|
726 | { |
|
|
727 | unsigned char o_events = anfd->events; |
|
|
728 | unsigned char o_reify = anfd->reify; |
|
|
729 | |
476 | anfd->reify = 0; |
730 | anfd->reify = 0; |
477 | |
|
|
478 | backend_modify (EV_A_ fd, anfd->events, events); |
|
|
479 | anfd->events = events; |
731 | anfd->events = events; |
|
|
732 | |
|
|
733 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
734 | backend_modify (EV_A_ fd, o_events, events); |
|
|
735 | } |
480 | } |
736 | } |
481 | |
737 | |
482 | fdchangecnt = 0; |
738 | fdchangecnt = 0; |
483 | } |
739 | } |
484 | |
740 | |
485 | void inline_size |
741 | void inline_size |
486 | fd_change (EV_P_ int fd) |
742 | fd_change (EV_P_ int fd, int flags) |
487 | { |
743 | { |
488 | if (expect_false (anfds [fd].reify)) |
744 | unsigned char reify = anfds [fd].reify; |
489 | return; |
|
|
490 | |
|
|
491 | anfds [fd].reify = 1; |
745 | anfds [fd].reify |= flags; |
492 | |
746 | |
|
|
747 | if (expect_true (!reify)) |
|
|
748 | { |
493 | ++fdchangecnt; |
749 | ++fdchangecnt; |
494 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
750 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
495 | fdchanges [fdchangecnt - 1] = fd; |
751 | fdchanges [fdchangecnt - 1] = fd; |
|
|
752 | } |
496 | } |
753 | } |
497 | |
754 | |
498 | void inline_speed |
755 | void inline_speed |
499 | fd_kill (EV_P_ int fd) |
756 | fd_kill (EV_P_ int fd) |
500 | { |
757 | { |
… | |
… | |
523 | { |
780 | { |
524 | int fd; |
781 | int fd; |
525 | |
782 | |
526 | for (fd = 0; fd < anfdmax; ++fd) |
783 | for (fd = 0; fd < anfdmax; ++fd) |
527 | if (anfds [fd].events) |
784 | if (anfds [fd].events) |
528 | if (!fd_valid (fd) == -1 && errno == EBADF) |
785 | if (!fd_valid (fd) && errno == EBADF) |
529 | fd_kill (EV_A_ fd); |
786 | fd_kill (EV_A_ fd); |
530 | } |
787 | } |
531 | |
788 | |
532 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
789 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
533 | static void noinline |
790 | static void noinline |
… | |
… | |
547 | static void noinline |
804 | static void noinline |
548 | fd_rearm_all (EV_P) |
805 | fd_rearm_all (EV_P) |
549 | { |
806 | { |
550 | int fd; |
807 | int fd; |
551 | |
808 | |
552 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
553 | for (fd = 0; fd < anfdmax; ++fd) |
809 | for (fd = 0; fd < anfdmax; ++fd) |
554 | if (anfds [fd].events) |
810 | if (anfds [fd].events) |
555 | { |
811 | { |
556 | anfds [fd].events = 0; |
812 | anfds [fd].events = 0; |
557 | fd_change (EV_A_ fd); |
813 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
558 | } |
814 | } |
559 | } |
815 | } |
560 | |
816 | |
561 | /*****************************************************************************/ |
817 | /*****************************************************************************/ |
562 | |
818 | |
|
|
819 | /* |
|
|
820 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
|
|
821 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
|
|
822 | * the branching factor of the d-tree. |
|
|
823 | */ |
|
|
824 | |
|
|
825 | /* |
|
|
826 | * at the moment we allow libev the luxury of two heaps, |
|
|
827 | * a small-code-size 2-heap one and a ~1.5kb larger 4-heap |
|
|
828 | * which is more cache-efficient. |
|
|
829 | * the difference is about 5% with 50000+ watchers. |
|
|
830 | */ |
|
|
831 | #if EV_USE_4HEAP |
|
|
832 | |
|
|
833 | #define DHEAP 4 |
|
|
834 | #define HEAP0 (DHEAP - 1) /* index of first element in heap */ |
|
|
835 | #define HPARENT(k) ((((k) - HEAP0 - 1) / DHEAP) + HEAP0) |
|
|
836 | #define UPHEAP_DONE(p,k) ((p) == (k)) |
|
|
837 | |
|
|
838 | /* away from the root */ |
563 | void inline_speed |
839 | void inline_speed |
564 | upheap (WT *heap, int k) |
840 | downheap (ANHE *heap, int N, int k) |
565 | { |
841 | { |
566 | WT w = heap [k]; |
842 | ANHE he = heap [k]; |
|
|
843 | ANHE *E = heap + N + HEAP0; |
567 | |
844 | |
568 | while (k && heap [k >> 1]->at > w->at) |
845 | for (;;) |
569 | { |
|
|
570 | heap [k] = heap [k >> 1]; |
|
|
571 | ((W)heap [k])->active = k + 1; |
|
|
572 | k >>= 1; |
|
|
573 | } |
846 | { |
|
|
847 | ev_tstamp minat; |
|
|
848 | ANHE *minpos; |
|
|
849 | ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; |
574 | |
850 | |
|
|
851 | /* find minimum child */ |
|
|
852 | if (expect_true (pos + DHEAP - 1 < E)) |
|
|
853 | { |
|
|
854 | /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
855 | if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
856 | if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
857 | if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
858 | } |
|
|
859 | else if (pos < E) |
|
|
860 | { |
|
|
861 | /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); |
|
|
862 | if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); |
|
|
863 | if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); |
|
|
864 | if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); |
|
|
865 | } |
|
|
866 | else |
|
|
867 | break; |
|
|
868 | |
|
|
869 | if (ANHE_at (he) <= minat) |
|
|
870 | break; |
|
|
871 | |
|
|
872 | heap [k] = *minpos; |
|
|
873 | ev_active (ANHE_w (*minpos)) = k; |
|
|
874 | |
|
|
875 | k = minpos - heap; |
|
|
876 | } |
|
|
877 | |
575 | heap [k] = w; |
878 | heap [k] = he; |
576 | ((W)heap [k])->active = k + 1; |
879 | ev_active (ANHE_w (he)) = k; |
577 | |
|
|
578 | } |
880 | } |
579 | |
881 | |
|
|
882 | #else /* 4HEAP */ |
|
|
883 | |
|
|
884 | #define HEAP0 1 |
|
|
885 | #define HPARENT(k) ((k) >> 1) |
|
|
886 | #define UPHEAP_DONE(p,k) (!(p)) |
|
|
887 | |
|
|
888 | /* away from the root */ |
580 | void inline_speed |
889 | void inline_speed |
581 | downheap (WT *heap, int N, int k) |
890 | downheap (ANHE *heap, int N, int k) |
582 | { |
891 | { |
583 | WT w = heap [k]; |
892 | ANHE he = heap [k]; |
584 | |
893 | |
585 | while (k < (N >> 1)) |
894 | for (;;) |
586 | { |
895 | { |
587 | int j = k << 1; |
896 | int c = k << 1; |
588 | |
897 | |
589 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
898 | if (c > N + HEAP0 - 1) |
590 | ++j; |
|
|
591 | |
|
|
592 | if (w->at <= heap [j]->at) |
|
|
593 | break; |
899 | break; |
594 | |
900 | |
|
|
901 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
|
|
902 | ? 1 : 0; |
|
|
903 | |
|
|
904 | if (ANHE_at (he) <= ANHE_at (heap [c])) |
|
|
905 | break; |
|
|
906 | |
595 | heap [k] = heap [j]; |
907 | heap [k] = heap [c]; |
596 | ((W)heap [k])->active = k + 1; |
908 | ev_active (ANHE_w (heap [k])) = k; |
|
|
909 | |
597 | k = j; |
910 | k = c; |
598 | } |
911 | } |
599 | |
912 | |
600 | heap [k] = w; |
913 | heap [k] = he; |
601 | ((W)heap [k])->active = k + 1; |
914 | ev_active (ANHE_w (he)) = k; |
|
|
915 | } |
|
|
916 | #endif |
|
|
917 | |
|
|
918 | /* towards the root */ |
|
|
919 | void inline_speed |
|
|
920 | upheap (ANHE *heap, int k) |
|
|
921 | { |
|
|
922 | ANHE he = heap [k]; |
|
|
923 | |
|
|
924 | for (;;) |
|
|
925 | { |
|
|
926 | int p = HPARENT (k); |
|
|
927 | |
|
|
928 | if (UPHEAP_DONE (p, k) || ANHE_at (heap [p]) <= ANHE_at (he)) |
|
|
929 | break; |
|
|
930 | |
|
|
931 | heap [k] = heap [p]; |
|
|
932 | ev_active (ANHE_w (heap [k])) = k; |
|
|
933 | k = p; |
|
|
934 | } |
|
|
935 | |
|
|
936 | heap [k] = he; |
|
|
937 | ev_active (ANHE_w (he)) = k; |
602 | } |
938 | } |
603 | |
939 | |
604 | void inline_size |
940 | void inline_size |
605 | adjustheap (WT *heap, int N, int k) |
941 | adjustheap (ANHE *heap, int N, int k) |
606 | { |
942 | { |
|
|
943 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
607 | upheap (heap, k); |
944 | upheap (heap, k); |
|
|
945 | else |
608 | downheap (heap, N, k); |
946 | downheap (heap, N, k); |
|
|
947 | } |
|
|
948 | |
|
|
949 | /* rebuild the heap: this function is used only once and executed rarely */ |
|
|
950 | void inline_size |
|
|
951 | reheap (ANHE *heap, int N) |
|
|
952 | { |
|
|
953 | int i; |
|
|
954 | |
|
|
955 | /* we don't use floyds algorithm, upheap is simpler and is more cache-efficient */ |
|
|
956 | /* also, this is easy to implement and correct for both 2-heaps and 4-heaps */ |
|
|
957 | for (i = 0; i < N; ++i) |
|
|
958 | upheap (heap, i + HEAP0); |
609 | } |
959 | } |
610 | |
960 | |
611 | /*****************************************************************************/ |
961 | /*****************************************************************************/ |
612 | |
962 | |
613 | typedef struct |
963 | typedef struct |
614 | { |
964 | { |
615 | WL head; |
965 | WL head; |
616 | sig_atomic_t volatile gotsig; |
966 | EV_ATOMIC_T gotsig; |
617 | } ANSIG; |
967 | } ANSIG; |
618 | |
968 | |
619 | static ANSIG *signals; |
969 | static ANSIG *signals; |
620 | static int signalmax; |
970 | static int signalmax; |
621 | |
971 | |
622 | static int sigpipe [2]; |
972 | static EV_ATOMIC_T gotsig; |
623 | static sig_atomic_t volatile gotsig; |
|
|
624 | static ev_io sigev; |
|
|
625 | |
973 | |
626 | void inline_size |
974 | void inline_size |
627 | signals_init (ANSIG *base, int count) |
975 | signals_init (ANSIG *base, int count) |
628 | { |
976 | { |
629 | while (count--) |
977 | while (count--) |
… | |
… | |
633 | |
981 | |
634 | ++base; |
982 | ++base; |
635 | } |
983 | } |
636 | } |
984 | } |
637 | |
985 | |
638 | static void |
986 | /*****************************************************************************/ |
639 | sighandler (int signum) |
|
|
640 | { |
|
|
641 | #if _WIN32 |
|
|
642 | signal (signum, sighandler); |
|
|
643 | #endif |
|
|
644 | |
987 | |
645 | signals [signum - 1].gotsig = 1; |
|
|
646 | |
|
|
647 | if (!gotsig) |
|
|
648 | { |
|
|
649 | int old_errno = errno; |
|
|
650 | gotsig = 1; |
|
|
651 | write (sigpipe [1], &signum, 1); |
|
|
652 | errno = old_errno; |
|
|
653 | } |
|
|
654 | } |
|
|
655 | |
|
|
656 | void noinline |
|
|
657 | ev_feed_signal_event (EV_P_ int signum) |
|
|
658 | { |
|
|
659 | WL w; |
|
|
660 | |
|
|
661 | #if EV_MULTIPLICITY |
|
|
662 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
663 | #endif |
|
|
664 | |
|
|
665 | --signum; |
|
|
666 | |
|
|
667 | if (signum < 0 || signum >= signalmax) |
|
|
668 | return; |
|
|
669 | |
|
|
670 | signals [signum].gotsig = 0; |
|
|
671 | |
|
|
672 | for (w = signals [signum].head; w; w = w->next) |
|
|
673 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
674 | } |
|
|
675 | |
|
|
676 | static void |
|
|
677 | sigcb (EV_P_ ev_io *iow, int revents) |
|
|
678 | { |
|
|
679 | int signum; |
|
|
680 | |
|
|
681 | read (sigpipe [0], &revents, 1); |
|
|
682 | gotsig = 0; |
|
|
683 | |
|
|
684 | for (signum = signalmax; signum--; ) |
|
|
685 | if (signals [signum].gotsig) |
|
|
686 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
687 | } |
|
|
688 | |
|
|
689 | void inline_size |
988 | void inline_speed |
690 | fd_intern (int fd) |
989 | fd_intern (int fd) |
691 | { |
990 | { |
692 | #ifdef _WIN32 |
991 | #ifdef _WIN32 |
693 | int arg = 1; |
992 | unsigned long arg = 1; |
694 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
993 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
695 | #else |
994 | #else |
696 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
995 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
697 | fcntl (fd, F_SETFL, O_NONBLOCK); |
996 | fcntl (fd, F_SETFL, O_NONBLOCK); |
698 | #endif |
997 | #endif |
699 | } |
998 | } |
700 | |
999 | |
701 | static void noinline |
1000 | static void noinline |
702 | siginit (EV_P) |
1001 | evpipe_init (EV_P) |
703 | { |
1002 | { |
|
|
1003 | if (!ev_is_active (&pipeev)) |
|
|
1004 | { |
|
|
1005 | #if EV_USE_EVENTFD |
|
|
1006 | if ((evfd = eventfd (0, 0)) >= 0) |
|
|
1007 | { |
|
|
1008 | evpipe [0] = -1; |
|
|
1009 | fd_intern (evfd); |
|
|
1010 | ev_io_set (&pipeev, evfd, EV_READ); |
|
|
1011 | } |
|
|
1012 | else |
|
|
1013 | #endif |
|
|
1014 | { |
|
|
1015 | while (pipe (evpipe)) |
|
|
1016 | syserr ("(libev) error creating signal/async pipe"); |
|
|
1017 | |
704 | fd_intern (sigpipe [0]); |
1018 | fd_intern (evpipe [0]); |
705 | fd_intern (sigpipe [1]); |
1019 | fd_intern (evpipe [1]); |
|
|
1020 | ev_io_set (&pipeev, evpipe [0], EV_READ); |
|
|
1021 | } |
706 | |
1022 | |
707 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
708 | ev_io_start (EV_A_ &sigev); |
1023 | ev_io_start (EV_A_ &pipeev); |
709 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1024 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1025 | } |
|
|
1026 | } |
|
|
1027 | |
|
|
1028 | void inline_size |
|
|
1029 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1030 | { |
|
|
1031 | if (!*flag) |
|
|
1032 | { |
|
|
1033 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1034 | |
|
|
1035 | *flag = 1; |
|
|
1036 | |
|
|
1037 | #if EV_USE_EVENTFD |
|
|
1038 | if (evfd >= 0) |
|
|
1039 | { |
|
|
1040 | uint64_t counter = 1; |
|
|
1041 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1042 | } |
|
|
1043 | else |
|
|
1044 | #endif |
|
|
1045 | write (evpipe [1], &old_errno, 1); |
|
|
1046 | |
|
|
1047 | errno = old_errno; |
|
|
1048 | } |
|
|
1049 | } |
|
|
1050 | |
|
|
1051 | static void |
|
|
1052 | pipecb (EV_P_ ev_io *iow, int revents) |
|
|
1053 | { |
|
|
1054 | #if EV_USE_EVENTFD |
|
|
1055 | if (evfd >= 0) |
|
|
1056 | { |
|
|
1057 | uint64_t counter; |
|
|
1058 | read (evfd, &counter, sizeof (uint64_t)); |
|
|
1059 | } |
|
|
1060 | else |
|
|
1061 | #endif |
|
|
1062 | { |
|
|
1063 | char dummy; |
|
|
1064 | read (evpipe [0], &dummy, 1); |
|
|
1065 | } |
|
|
1066 | |
|
|
1067 | if (gotsig && ev_is_default_loop (EV_A)) |
|
|
1068 | { |
|
|
1069 | int signum; |
|
|
1070 | gotsig = 0; |
|
|
1071 | |
|
|
1072 | for (signum = signalmax; signum--; ) |
|
|
1073 | if (signals [signum].gotsig) |
|
|
1074 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
1075 | } |
|
|
1076 | |
|
|
1077 | #if EV_ASYNC_ENABLE |
|
|
1078 | if (gotasync) |
|
|
1079 | { |
|
|
1080 | int i; |
|
|
1081 | gotasync = 0; |
|
|
1082 | |
|
|
1083 | for (i = asynccnt; i--; ) |
|
|
1084 | if (asyncs [i]->sent) |
|
|
1085 | { |
|
|
1086 | asyncs [i]->sent = 0; |
|
|
1087 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
|
|
1088 | } |
|
|
1089 | } |
|
|
1090 | #endif |
710 | } |
1091 | } |
711 | |
1092 | |
712 | /*****************************************************************************/ |
1093 | /*****************************************************************************/ |
713 | |
1094 | |
|
|
1095 | static void |
|
|
1096 | ev_sighandler (int signum) |
|
|
1097 | { |
|
|
1098 | #if EV_MULTIPLICITY |
|
|
1099 | struct ev_loop *loop = &default_loop_struct; |
|
|
1100 | #endif |
|
|
1101 | |
|
|
1102 | #if _WIN32 |
|
|
1103 | signal (signum, ev_sighandler); |
|
|
1104 | #endif |
|
|
1105 | |
|
|
1106 | signals [signum - 1].gotsig = 1; |
|
|
1107 | evpipe_write (EV_A_ &gotsig); |
|
|
1108 | } |
|
|
1109 | |
|
|
1110 | void noinline |
|
|
1111 | ev_feed_signal_event (EV_P_ int signum) |
|
|
1112 | { |
|
|
1113 | WL w; |
|
|
1114 | |
|
|
1115 | #if EV_MULTIPLICITY |
|
|
1116 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1117 | #endif |
|
|
1118 | |
|
|
1119 | --signum; |
|
|
1120 | |
|
|
1121 | if (signum < 0 || signum >= signalmax) |
|
|
1122 | return; |
|
|
1123 | |
|
|
1124 | signals [signum].gotsig = 0; |
|
|
1125 | |
|
|
1126 | for (w = signals [signum].head; w; w = w->next) |
|
|
1127 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
1128 | } |
|
|
1129 | |
|
|
1130 | /*****************************************************************************/ |
|
|
1131 | |
714 | static ev_child *childs [PID_HASHSIZE]; |
1132 | static WL childs [EV_PID_HASHSIZE]; |
715 | |
1133 | |
716 | #ifndef _WIN32 |
1134 | #ifndef _WIN32 |
717 | |
1135 | |
718 | static ev_signal childev; |
1136 | static ev_signal childev; |
719 | |
1137 | |
|
|
1138 | #ifndef WIFCONTINUED |
|
|
1139 | # define WIFCONTINUED(status) 0 |
|
|
1140 | #endif |
|
|
1141 | |
720 | void inline_speed |
1142 | void inline_speed |
721 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
1143 | child_reap (EV_P_ int chain, int pid, int status) |
722 | { |
1144 | { |
723 | ev_child *w; |
1145 | ev_child *w; |
|
|
1146 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
724 | |
1147 | |
725 | for (w = (ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1148 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1149 | { |
726 | if (w->pid == pid || !w->pid) |
1150 | if ((w->pid == pid || !w->pid) |
|
|
1151 | && (!traced || (w->flags & 1))) |
727 | { |
1152 | { |
728 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
1153 | ev_set_priority (w, EV_MAXPRI); /* need to do it *now*, this *must* be the same prio as the signal watcher itself */ |
729 | w->rpid = pid; |
1154 | w->rpid = pid; |
730 | w->rstatus = status; |
1155 | w->rstatus = status; |
731 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
1156 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
732 | } |
1157 | } |
|
|
1158 | } |
733 | } |
1159 | } |
734 | |
1160 | |
735 | #ifndef WCONTINUED |
1161 | #ifndef WCONTINUED |
736 | # define WCONTINUED 0 |
1162 | # define WCONTINUED 0 |
737 | #endif |
1163 | #endif |
… | |
… | |
746 | if (!WCONTINUED |
1172 | if (!WCONTINUED |
747 | || errno != EINVAL |
1173 | || errno != EINVAL |
748 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
1174 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
749 | return; |
1175 | return; |
750 | |
1176 | |
751 | /* make sure we are called again until all childs have been reaped */ |
1177 | /* make sure we are called again until all children have been reaped */ |
752 | /* we need to do it this way so that the callback gets called before we continue */ |
1178 | /* we need to do it this way so that the callback gets called before we continue */ |
753 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
1179 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
754 | |
1180 | |
755 | child_reap (EV_A_ sw, pid, pid, status); |
1181 | child_reap (EV_A_ pid, pid, status); |
|
|
1182 | if (EV_PID_HASHSIZE > 1) |
756 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
1183 | child_reap (EV_A_ 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
757 | } |
1184 | } |
758 | |
1185 | |
759 | #endif |
1186 | #endif |
760 | |
1187 | |
761 | /*****************************************************************************/ |
1188 | /*****************************************************************************/ |
… | |
… | |
833 | } |
1260 | } |
834 | |
1261 | |
835 | unsigned int |
1262 | unsigned int |
836 | ev_embeddable_backends (void) |
1263 | ev_embeddable_backends (void) |
837 | { |
1264 | { |
838 | return EVBACKEND_EPOLL |
1265 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
839 | | EVBACKEND_KQUEUE |
1266 | |
840 | | EVBACKEND_PORT; |
1267 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1268 | /* please fix it and tell me how to detect the fix */ |
|
|
1269 | flags &= ~EVBACKEND_EPOLL; |
|
|
1270 | |
|
|
1271 | return flags; |
841 | } |
1272 | } |
842 | |
1273 | |
843 | unsigned int |
1274 | unsigned int |
844 | ev_backend (EV_P) |
1275 | ev_backend (EV_P) |
845 | { |
1276 | { |
846 | return backend; |
1277 | return backend; |
847 | } |
1278 | } |
848 | |
1279 | |
849 | static void |
1280 | unsigned int |
|
|
1281 | ev_loop_count (EV_P) |
|
|
1282 | { |
|
|
1283 | return loop_count; |
|
|
1284 | } |
|
|
1285 | |
|
|
1286 | void |
|
|
1287 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1288 | { |
|
|
1289 | io_blocktime = interval; |
|
|
1290 | } |
|
|
1291 | |
|
|
1292 | void |
|
|
1293 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1294 | { |
|
|
1295 | timeout_blocktime = interval; |
|
|
1296 | } |
|
|
1297 | |
|
|
1298 | static void noinline |
850 | loop_init (EV_P_ unsigned int flags) |
1299 | loop_init (EV_P_ unsigned int flags) |
851 | { |
1300 | { |
852 | if (!backend) |
1301 | if (!backend) |
853 | { |
1302 | { |
854 | #if EV_USE_MONOTONIC |
1303 | #if EV_USE_MONOTONIC |
… | |
… | |
857 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1306 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
858 | have_monotonic = 1; |
1307 | have_monotonic = 1; |
859 | } |
1308 | } |
860 | #endif |
1309 | #endif |
861 | |
1310 | |
862 | ev_rt_now = ev_time (); |
1311 | ev_rt_now = ev_time (); |
863 | mn_now = get_clock (); |
1312 | mn_now = get_clock (); |
864 | now_floor = mn_now; |
1313 | now_floor = mn_now; |
865 | rtmn_diff = ev_rt_now - mn_now; |
1314 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1315 | |
|
|
1316 | io_blocktime = 0.; |
|
|
1317 | timeout_blocktime = 0.; |
|
|
1318 | backend = 0; |
|
|
1319 | backend_fd = -1; |
|
|
1320 | gotasync = 0; |
|
|
1321 | #if EV_USE_INOTIFY |
|
|
1322 | fs_fd = -2; |
|
|
1323 | #endif |
|
|
1324 | |
|
|
1325 | /* pid check not overridable via env */ |
|
|
1326 | #ifndef _WIN32 |
|
|
1327 | if (flags & EVFLAG_FORKCHECK) |
|
|
1328 | curpid = getpid (); |
|
|
1329 | #endif |
866 | |
1330 | |
867 | if (!(flags & EVFLAG_NOENV) |
1331 | if (!(flags & EVFLAG_NOENV) |
868 | && !enable_secure () |
1332 | && !enable_secure () |
869 | && getenv ("LIBEV_FLAGS")) |
1333 | && getenv ("LIBEV_FLAGS")) |
870 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1334 | flags = atoi (getenv ("LIBEV_FLAGS")); |
871 | |
1335 | |
872 | if (!(flags & 0x0000ffffUL)) |
1336 | if (!(flags & 0x0000ffffU)) |
873 | flags |= ev_recommended_backends (); |
1337 | flags |= ev_recommended_backends (); |
874 | |
1338 | |
875 | backend = 0; |
|
|
876 | #if EV_USE_PORT |
1339 | #if EV_USE_PORT |
877 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1340 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
878 | #endif |
1341 | #endif |
879 | #if EV_USE_KQUEUE |
1342 | #if EV_USE_KQUEUE |
880 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
1343 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
887 | #endif |
1350 | #endif |
888 | #if EV_USE_SELECT |
1351 | #if EV_USE_SELECT |
889 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1352 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
890 | #endif |
1353 | #endif |
891 | |
1354 | |
892 | ev_init (&sigev, sigcb); |
1355 | ev_init (&pipeev, pipecb); |
893 | ev_set_priority (&sigev, EV_MAXPRI); |
1356 | ev_set_priority (&pipeev, EV_MAXPRI); |
894 | } |
1357 | } |
895 | } |
1358 | } |
896 | |
1359 | |
897 | static void |
1360 | static void noinline |
898 | loop_destroy (EV_P) |
1361 | loop_destroy (EV_P) |
899 | { |
1362 | { |
900 | int i; |
1363 | int i; |
|
|
1364 | |
|
|
1365 | if (ev_is_active (&pipeev)) |
|
|
1366 | { |
|
|
1367 | ev_ref (EV_A); /* signal watcher */ |
|
|
1368 | ev_io_stop (EV_A_ &pipeev); |
|
|
1369 | |
|
|
1370 | #if EV_USE_EVENTFD |
|
|
1371 | if (evfd >= 0) |
|
|
1372 | close (evfd); |
|
|
1373 | #endif |
|
|
1374 | |
|
|
1375 | if (evpipe [0] >= 0) |
|
|
1376 | { |
|
|
1377 | close (evpipe [0]); |
|
|
1378 | close (evpipe [1]); |
|
|
1379 | } |
|
|
1380 | } |
|
|
1381 | |
|
|
1382 | #if EV_USE_INOTIFY |
|
|
1383 | if (fs_fd >= 0) |
|
|
1384 | close (fs_fd); |
|
|
1385 | #endif |
|
|
1386 | |
|
|
1387 | if (backend_fd >= 0) |
|
|
1388 | close (backend_fd); |
901 | |
1389 | |
902 | #if EV_USE_PORT |
1390 | #if EV_USE_PORT |
903 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1391 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
904 | #endif |
1392 | #endif |
905 | #if EV_USE_KQUEUE |
1393 | #if EV_USE_KQUEUE |
… | |
… | |
914 | #if EV_USE_SELECT |
1402 | #if EV_USE_SELECT |
915 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
1403 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
916 | #endif |
1404 | #endif |
917 | |
1405 | |
918 | for (i = NUMPRI; i--; ) |
1406 | for (i = NUMPRI; i--; ) |
|
|
1407 | { |
919 | array_free (pending, [i]); |
1408 | array_free (pending, [i]); |
|
|
1409 | #if EV_IDLE_ENABLE |
|
|
1410 | array_free (idle, [i]); |
|
|
1411 | #endif |
|
|
1412 | } |
|
|
1413 | |
|
|
1414 | ev_free (anfds); anfdmax = 0; |
920 | |
1415 | |
921 | /* have to use the microsoft-never-gets-it-right macro */ |
1416 | /* have to use the microsoft-never-gets-it-right macro */ |
922 | array_free (fdchange, EMPTY0); |
1417 | array_free (fdchange, EMPTY); |
923 | array_free (timer, EMPTY0); |
1418 | array_free (timer, EMPTY); |
924 | #if EV_PERIODIC_ENABLE |
1419 | #if EV_PERIODIC_ENABLE |
925 | array_free (periodic, EMPTY0); |
1420 | array_free (periodic, EMPTY); |
926 | #endif |
1421 | #endif |
|
|
1422 | #if EV_FORK_ENABLE |
927 | array_free (idle, EMPTY0); |
1423 | array_free (fork, EMPTY); |
|
|
1424 | #endif |
928 | array_free (prepare, EMPTY0); |
1425 | array_free (prepare, EMPTY); |
929 | array_free (check, EMPTY0); |
1426 | array_free (check, EMPTY); |
|
|
1427 | #if EV_ASYNC_ENABLE |
|
|
1428 | array_free (async, EMPTY); |
|
|
1429 | #endif |
930 | |
1430 | |
931 | backend = 0; |
1431 | backend = 0; |
932 | } |
1432 | } |
933 | |
1433 | |
934 | static void |
1434 | #if EV_USE_INOTIFY |
|
|
1435 | void inline_size infy_fork (EV_P); |
|
|
1436 | #endif |
|
|
1437 | |
|
|
1438 | void inline_size |
935 | loop_fork (EV_P) |
1439 | loop_fork (EV_P) |
936 | { |
1440 | { |
937 | #if EV_USE_PORT |
1441 | #if EV_USE_PORT |
938 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1442 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
939 | #endif |
1443 | #endif |
… | |
… | |
941 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
1445 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
942 | #endif |
1446 | #endif |
943 | #if EV_USE_EPOLL |
1447 | #if EV_USE_EPOLL |
944 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
1448 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
945 | #endif |
1449 | #endif |
|
|
1450 | #if EV_USE_INOTIFY |
|
|
1451 | infy_fork (EV_A); |
|
|
1452 | #endif |
946 | |
1453 | |
947 | if (ev_is_active (&sigev)) |
1454 | if (ev_is_active (&pipeev)) |
948 | { |
1455 | { |
949 | /* default loop */ |
1456 | /* this "locks" the handlers against writing to the pipe */ |
|
|
1457 | /* while we modify the fd vars */ |
|
|
1458 | gotsig = 1; |
|
|
1459 | #if EV_ASYNC_ENABLE |
|
|
1460 | gotasync = 1; |
|
|
1461 | #endif |
950 | |
1462 | |
951 | ev_ref (EV_A); |
1463 | ev_ref (EV_A); |
952 | ev_io_stop (EV_A_ &sigev); |
1464 | ev_io_stop (EV_A_ &pipeev); |
|
|
1465 | |
|
|
1466 | #if EV_USE_EVENTFD |
|
|
1467 | if (evfd >= 0) |
|
|
1468 | close (evfd); |
|
|
1469 | #endif |
|
|
1470 | |
|
|
1471 | if (evpipe [0] >= 0) |
|
|
1472 | { |
953 | close (sigpipe [0]); |
1473 | close (evpipe [0]); |
954 | close (sigpipe [1]); |
1474 | close (evpipe [1]); |
|
|
1475 | } |
955 | |
1476 | |
956 | while (pipe (sigpipe)) |
|
|
957 | syserr ("(libev) error creating pipe"); |
|
|
958 | |
|
|
959 | siginit (EV_A); |
1477 | evpipe_init (EV_A); |
|
|
1478 | /* now iterate over everything, in case we missed something */ |
|
|
1479 | pipecb (EV_A_ &pipeev, EV_READ); |
960 | } |
1480 | } |
961 | |
1481 | |
962 | postfork = 0; |
1482 | postfork = 0; |
963 | } |
1483 | } |
964 | |
1484 | |
965 | #if EV_MULTIPLICITY |
1485 | #if EV_MULTIPLICITY |
|
|
1486 | |
966 | struct ev_loop * |
1487 | struct ev_loop * |
967 | ev_loop_new (unsigned int flags) |
1488 | ev_loop_new (unsigned int flags) |
968 | { |
1489 | { |
969 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1490 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
970 | |
1491 | |
… | |
… | |
986 | } |
1507 | } |
987 | |
1508 | |
988 | void |
1509 | void |
989 | ev_loop_fork (EV_P) |
1510 | ev_loop_fork (EV_P) |
990 | { |
1511 | { |
991 | postfork = 1; |
1512 | postfork = 1; /* must be in line with ev_default_fork */ |
992 | } |
1513 | } |
993 | |
1514 | |
|
|
1515 | #if EV_VERIFY |
|
|
1516 | static void noinline |
|
|
1517 | verify_watcher (EV_P_ W w) |
|
|
1518 | { |
|
|
1519 | assert (("watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
|
|
1520 | |
|
|
1521 | if (w->pending) |
|
|
1522 | assert (("pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
|
|
1523 | } |
|
|
1524 | |
|
|
1525 | static void noinline |
|
|
1526 | verify_heap (EV_P_ ANHE *heap, int N) |
|
|
1527 | { |
|
|
1528 | int i; |
|
|
1529 | |
|
|
1530 | for (i = HEAP0; i < N + HEAP0; ++i) |
|
|
1531 | { |
|
|
1532 | assert (("active index mismatch in heap", ev_active (ANHE_w (heap [i])) == i)); |
|
|
1533 | assert (("heap condition violated", i == HEAP0 || ANHE_at (heap [HPARENT (i)]) <= ANHE_at (heap [i]))); |
|
|
1534 | assert (("heap at cache mismatch", ANHE_at (heap [i]) == ev_at (ANHE_w (heap [i])))); |
|
|
1535 | |
|
|
1536 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
|
|
1537 | } |
|
|
1538 | } |
|
|
1539 | |
|
|
1540 | static void noinline |
|
|
1541 | array_verify (EV_P_ W *ws, int cnt) |
|
|
1542 | { |
|
|
1543 | while (cnt--) |
|
|
1544 | { |
|
|
1545 | assert (("active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
|
|
1546 | verify_watcher (EV_A_ ws [cnt]); |
|
|
1547 | } |
|
|
1548 | } |
|
|
1549 | #endif |
|
|
1550 | |
|
|
1551 | void |
|
|
1552 | ev_loop_verify (EV_P) |
|
|
1553 | { |
|
|
1554 | #if EV_VERIFY |
|
|
1555 | int i; |
|
|
1556 | WL w; |
|
|
1557 | |
|
|
1558 | assert (activecnt >= -1); |
|
|
1559 | |
|
|
1560 | assert (fdchangemax >= fdchangecnt); |
|
|
1561 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1562 | assert (("negative fd in fdchanges", fdchanges [i] >= 0)); |
|
|
1563 | |
|
|
1564 | assert (anfdmax >= 0); |
|
|
1565 | for (i = 0; i < anfdmax; ++i) |
|
|
1566 | for (w = anfds [i].head; w; w = w->next) |
|
|
1567 | { |
|
|
1568 | verify_watcher (EV_A_ (W)w); |
|
|
1569 | assert (("inactive fd watcher on anfd list", ev_active (w) == 1)); |
|
|
1570 | assert (("fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
|
|
1571 | } |
|
|
1572 | |
|
|
1573 | assert (timermax >= timercnt); |
|
|
1574 | verify_heap (EV_A_ timers, timercnt); |
|
|
1575 | |
|
|
1576 | #if EV_PERIODIC_ENABLE |
|
|
1577 | assert (periodicmax >= periodiccnt); |
|
|
1578 | verify_heap (EV_A_ periodics, periodiccnt); |
|
|
1579 | #endif |
|
|
1580 | |
|
|
1581 | for (i = NUMPRI; i--; ) |
|
|
1582 | { |
|
|
1583 | assert (pendingmax [i] >= pendingcnt [i]); |
|
|
1584 | #if EV_IDLE_ENABLE |
|
|
1585 | assert (idleall >= 0); |
|
|
1586 | assert (idlemax [i] >= idlecnt [i]); |
|
|
1587 | array_verify (EV_A_ (W *)idles [i], idlecnt [i]); |
|
|
1588 | #endif |
|
|
1589 | } |
|
|
1590 | |
|
|
1591 | #if EV_FORK_ENABLE |
|
|
1592 | assert (forkmax >= forkcnt); |
|
|
1593 | array_verify (EV_A_ (W *)forks, forkcnt); |
|
|
1594 | #endif |
|
|
1595 | |
|
|
1596 | #if EV_ASYNC_ENABLE |
|
|
1597 | assert (asyncmax >= asynccnt); |
|
|
1598 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
|
|
1599 | #endif |
|
|
1600 | |
|
|
1601 | assert (preparemax >= preparecnt); |
|
|
1602 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1603 | |
|
|
1604 | assert (checkmax >= checkcnt); |
|
|
1605 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1606 | |
|
|
1607 | # if 0 |
|
|
1608 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
1609 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
994 | #endif |
1610 | # endif |
|
|
1611 | #endif |
|
|
1612 | } |
|
|
1613 | |
|
|
1614 | #endif /* multiplicity */ |
995 | |
1615 | |
996 | #if EV_MULTIPLICITY |
1616 | #if EV_MULTIPLICITY |
997 | struct ev_loop * |
1617 | struct ev_loop * |
998 | ev_default_loop_init (unsigned int flags) |
1618 | ev_default_loop_init (unsigned int flags) |
999 | #else |
1619 | #else |
1000 | int |
1620 | int |
1001 | ev_default_loop (unsigned int flags) |
1621 | ev_default_loop (unsigned int flags) |
1002 | #endif |
1622 | #endif |
1003 | { |
1623 | { |
1004 | if (sigpipe [0] == sigpipe [1]) |
|
|
1005 | if (pipe (sigpipe)) |
|
|
1006 | return 0; |
|
|
1007 | |
|
|
1008 | if (!ev_default_loop_ptr) |
1624 | if (!ev_default_loop_ptr) |
1009 | { |
1625 | { |
1010 | #if EV_MULTIPLICITY |
1626 | #if EV_MULTIPLICITY |
1011 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1627 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1012 | #else |
1628 | #else |
… | |
… | |
1015 | |
1631 | |
1016 | loop_init (EV_A_ flags); |
1632 | loop_init (EV_A_ flags); |
1017 | |
1633 | |
1018 | if (ev_backend (EV_A)) |
1634 | if (ev_backend (EV_A)) |
1019 | { |
1635 | { |
1020 | siginit (EV_A); |
|
|
1021 | |
|
|
1022 | #ifndef _WIN32 |
1636 | #ifndef _WIN32 |
1023 | ev_signal_init (&childev, childcb, SIGCHLD); |
1637 | ev_signal_init (&childev, childcb, SIGCHLD); |
1024 | ev_set_priority (&childev, EV_MAXPRI); |
1638 | ev_set_priority (&childev, EV_MAXPRI); |
1025 | ev_signal_start (EV_A_ &childev); |
1639 | ev_signal_start (EV_A_ &childev); |
1026 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1640 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
… | |
… | |
1043 | #ifndef _WIN32 |
1657 | #ifndef _WIN32 |
1044 | ev_ref (EV_A); /* child watcher */ |
1658 | ev_ref (EV_A); /* child watcher */ |
1045 | ev_signal_stop (EV_A_ &childev); |
1659 | ev_signal_stop (EV_A_ &childev); |
1046 | #endif |
1660 | #endif |
1047 | |
1661 | |
1048 | ev_ref (EV_A); /* signal watcher */ |
|
|
1049 | ev_io_stop (EV_A_ &sigev); |
|
|
1050 | |
|
|
1051 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1052 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1053 | |
|
|
1054 | loop_destroy (EV_A); |
1662 | loop_destroy (EV_A); |
1055 | } |
1663 | } |
1056 | |
1664 | |
1057 | void |
1665 | void |
1058 | ev_default_fork (void) |
1666 | ev_default_fork (void) |
… | |
… | |
1060 | #if EV_MULTIPLICITY |
1668 | #if EV_MULTIPLICITY |
1061 | struct ev_loop *loop = ev_default_loop_ptr; |
1669 | struct ev_loop *loop = ev_default_loop_ptr; |
1062 | #endif |
1670 | #endif |
1063 | |
1671 | |
1064 | if (backend) |
1672 | if (backend) |
1065 | postfork = 1; |
1673 | postfork = 1; /* must be in line with ev_loop_fork */ |
1066 | } |
1674 | } |
1067 | |
1675 | |
1068 | /*****************************************************************************/ |
1676 | /*****************************************************************************/ |
1069 | |
1677 | |
1070 | int inline_size |
1678 | void |
1071 | any_pending (EV_P) |
1679 | ev_invoke (EV_P_ void *w, int revents) |
1072 | { |
1680 | { |
1073 | int pri; |
1681 | EV_CB_INVOKE ((W)w, revents); |
1074 | |
|
|
1075 | for (pri = NUMPRI; pri--; ) |
|
|
1076 | if (pendingcnt [pri]) |
|
|
1077 | return 1; |
|
|
1078 | |
|
|
1079 | return 0; |
|
|
1080 | } |
1682 | } |
1081 | |
1683 | |
1082 | void inline_speed |
1684 | void inline_speed |
1083 | call_pending (EV_P) |
1685 | call_pending (EV_P) |
1084 | { |
1686 | { |
… | |
… | |
1089 | { |
1691 | { |
1090 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1692 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1091 | |
1693 | |
1092 | if (expect_true (p->w)) |
1694 | if (expect_true (p->w)) |
1093 | { |
1695 | { |
1094 | assert (("non-pending watcher on pending list", p->w->pending)); |
1696 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
1095 | |
1697 | |
1096 | p->w->pending = 0; |
1698 | p->w->pending = 0; |
1097 | EV_CB_INVOKE (p->w, p->events); |
1699 | EV_CB_INVOKE (p->w, p->events); |
|
|
1700 | EV_FREQUENT_CHECK; |
1098 | } |
1701 | } |
1099 | } |
1702 | } |
1100 | } |
1703 | } |
1101 | |
1704 | |
|
|
1705 | #if EV_IDLE_ENABLE |
|
|
1706 | void inline_size |
|
|
1707 | idle_reify (EV_P) |
|
|
1708 | { |
|
|
1709 | if (expect_false (idleall)) |
|
|
1710 | { |
|
|
1711 | int pri; |
|
|
1712 | |
|
|
1713 | for (pri = NUMPRI; pri--; ) |
|
|
1714 | { |
|
|
1715 | if (pendingcnt [pri]) |
|
|
1716 | break; |
|
|
1717 | |
|
|
1718 | if (idlecnt [pri]) |
|
|
1719 | { |
|
|
1720 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
|
|
1721 | break; |
|
|
1722 | } |
|
|
1723 | } |
|
|
1724 | } |
|
|
1725 | } |
|
|
1726 | #endif |
|
|
1727 | |
1102 | void inline_size |
1728 | void inline_size |
1103 | timers_reify (EV_P) |
1729 | timers_reify (EV_P) |
1104 | { |
1730 | { |
|
|
1731 | EV_FREQUENT_CHECK; |
|
|
1732 | |
1105 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1733 | while (timercnt && ANHE_at (timers [HEAP0]) < mn_now) |
1106 | { |
1734 | { |
1107 | ev_timer *w = timers [0]; |
1735 | ev_timer *w = (ev_timer *)ANHE_w (timers [HEAP0]); |
1108 | |
1736 | |
1109 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
1737 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
1110 | |
1738 | |
1111 | /* first reschedule or stop timer */ |
1739 | /* first reschedule or stop timer */ |
1112 | if (w->repeat) |
1740 | if (w->repeat) |
1113 | { |
1741 | { |
|
|
1742 | ev_at (w) += w->repeat; |
|
|
1743 | if (ev_at (w) < mn_now) |
|
|
1744 | ev_at (w) = mn_now; |
|
|
1745 | |
1114 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1746 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1115 | |
1747 | |
1116 | ((WT)w)->at += w->repeat; |
1748 | ANHE_at_cache (timers [HEAP0]); |
1117 | if (((WT)w)->at < mn_now) |
|
|
1118 | ((WT)w)->at = mn_now; |
|
|
1119 | |
|
|
1120 | downheap ((WT *)timers, timercnt, 0); |
1749 | downheap (timers, timercnt, HEAP0); |
1121 | } |
1750 | } |
1122 | else |
1751 | else |
1123 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1752 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1124 | |
1753 | |
|
|
1754 | EV_FREQUENT_CHECK; |
1125 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1755 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1126 | } |
1756 | } |
1127 | } |
1757 | } |
1128 | |
1758 | |
1129 | #if EV_PERIODIC_ENABLE |
1759 | #if EV_PERIODIC_ENABLE |
1130 | void inline_size |
1760 | void inline_size |
1131 | periodics_reify (EV_P) |
1761 | periodics_reify (EV_P) |
1132 | { |
1762 | { |
|
|
1763 | EV_FREQUENT_CHECK; |
|
|
1764 | |
1133 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1765 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
1134 | { |
1766 | { |
1135 | ev_periodic *w = periodics [0]; |
1767 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
1136 | |
1768 | |
1137 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
1769 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1138 | |
1770 | |
1139 | /* first reschedule or stop timer */ |
1771 | /* first reschedule or stop timer */ |
1140 | if (w->reschedule_cb) |
1772 | if (w->reschedule_cb) |
1141 | { |
1773 | { |
1142 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
1774 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
|
|
1775 | |
1143 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
1776 | assert (("ev_periodic reschedule callback returned time in the past", ev_at (w) >= ev_rt_now)); |
|
|
1777 | |
|
|
1778 | ANHE_at_cache (periodics [HEAP0]); |
1144 | downheap ((WT *)periodics, periodiccnt, 0); |
1779 | downheap (periodics, periodiccnt, HEAP0); |
1145 | } |
1780 | } |
1146 | else if (w->interval) |
1781 | else if (w->interval) |
1147 | { |
1782 | { |
1148 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
1783 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1149 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
1784 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
1785 | /* this might happen because of floating point inexactness */ |
|
|
1786 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
1787 | { |
|
|
1788 | ev_at (w) += w->interval; |
|
|
1789 | |
|
|
1790 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
1791 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
1792 | /* has effectively asked to get triggered more often than possible */ |
|
|
1793 | if (ev_at (w) < ev_rt_now) |
|
|
1794 | ev_at (w) = ev_rt_now; |
|
|
1795 | } |
|
|
1796 | |
|
|
1797 | ANHE_at_cache (periodics [HEAP0]); |
1150 | downheap ((WT *)periodics, periodiccnt, 0); |
1798 | downheap (periodics, periodiccnt, HEAP0); |
1151 | } |
1799 | } |
1152 | else |
1800 | else |
1153 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1801 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1154 | |
1802 | |
|
|
1803 | EV_FREQUENT_CHECK; |
1155 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1804 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1156 | } |
1805 | } |
1157 | } |
1806 | } |
1158 | |
1807 | |
1159 | static void noinline |
1808 | static void noinline |
1160 | periodics_reschedule (EV_P) |
1809 | periodics_reschedule (EV_P) |
1161 | { |
1810 | { |
1162 | int i; |
1811 | int i; |
1163 | |
1812 | |
1164 | /* adjust periodics after time jump */ |
1813 | /* adjust periodics after time jump */ |
1165 | for (i = 0; i < periodiccnt; ++i) |
1814 | for (i = HEAP0; i < periodiccnt + HEAP0; ++i) |
1166 | { |
1815 | { |
1167 | ev_periodic *w = periodics [i]; |
1816 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
1168 | |
1817 | |
1169 | if (w->reschedule_cb) |
1818 | if (w->reschedule_cb) |
1170 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1819 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1171 | else if (w->interval) |
1820 | else if (w->interval) |
1172 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1821 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1822 | |
|
|
1823 | ANHE_at_cache (periodics [i]); |
|
|
1824 | } |
|
|
1825 | |
|
|
1826 | reheap (periodics, periodiccnt); |
|
|
1827 | } |
|
|
1828 | #endif |
|
|
1829 | |
|
|
1830 | void inline_speed |
|
|
1831 | time_update (EV_P_ ev_tstamp max_block) |
|
|
1832 | { |
|
|
1833 | int i; |
|
|
1834 | |
|
|
1835 | #if EV_USE_MONOTONIC |
|
|
1836 | if (expect_true (have_monotonic)) |
1173 | } |
1837 | { |
|
|
1838 | ev_tstamp odiff = rtmn_diff; |
1174 | |
1839 | |
1175 | /* now rebuild the heap */ |
|
|
1176 | for (i = periodiccnt >> 1; i--; ) |
|
|
1177 | downheap ((WT *)periodics, periodiccnt, i); |
|
|
1178 | } |
|
|
1179 | #endif |
|
|
1180 | |
|
|
1181 | int inline_size |
|
|
1182 | time_update_monotonic (EV_P) |
|
|
1183 | { |
|
|
1184 | mn_now = get_clock (); |
1840 | mn_now = get_clock (); |
1185 | |
1841 | |
|
|
1842 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
1843 | /* interpolate in the meantime */ |
1186 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1844 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1187 | { |
1845 | { |
1188 | ev_rt_now = rtmn_diff + mn_now; |
1846 | ev_rt_now = rtmn_diff + mn_now; |
1189 | return 0; |
1847 | return; |
1190 | } |
1848 | } |
1191 | else |
1849 | |
1192 | { |
|
|
1193 | now_floor = mn_now; |
1850 | now_floor = mn_now; |
1194 | ev_rt_now = ev_time (); |
1851 | ev_rt_now = ev_time (); |
1195 | return 1; |
|
|
1196 | } |
|
|
1197 | } |
|
|
1198 | |
1852 | |
1199 | void inline_size |
1853 | /* loop a few times, before making important decisions. |
1200 | time_update (EV_P) |
1854 | * on the choice of "4": one iteration isn't enough, |
1201 | { |
1855 | * in case we get preempted during the calls to |
1202 | int i; |
1856 | * ev_time and get_clock. a second call is almost guaranteed |
1203 | |
1857 | * to succeed in that case, though. and looping a few more times |
1204 | #if EV_USE_MONOTONIC |
1858 | * doesn't hurt either as we only do this on time-jumps or |
1205 | if (expect_true (have_monotonic)) |
1859 | * in the unlikely event of having been preempted here. |
1206 | { |
1860 | */ |
1207 | if (time_update_monotonic (EV_A)) |
1861 | for (i = 4; --i; ) |
1208 | { |
1862 | { |
1209 | ev_tstamp odiff = rtmn_diff; |
|
|
1210 | |
|
|
1211 | /* loop a few times, before making important decisions. |
|
|
1212 | * on the choice of "4": one iteration isn't enough, |
|
|
1213 | * in case we get preempted during the calls to |
|
|
1214 | * ev_time and get_clock. a second call is almost guarenteed |
|
|
1215 | * to succeed in that case, though. and looping a few more times |
|
|
1216 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1217 | * in the unlikely event of getting preempted here. |
|
|
1218 | */ |
|
|
1219 | for (i = 4; --i; ) |
|
|
1220 | { |
|
|
1221 | rtmn_diff = ev_rt_now - mn_now; |
1863 | rtmn_diff = ev_rt_now - mn_now; |
1222 | |
1864 | |
1223 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1865 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
1224 | return; /* all is well */ |
1866 | return; /* all is well */ |
1225 | |
1867 | |
1226 | ev_rt_now = ev_time (); |
1868 | ev_rt_now = ev_time (); |
1227 | mn_now = get_clock (); |
1869 | mn_now = get_clock (); |
1228 | now_floor = mn_now; |
1870 | now_floor = mn_now; |
1229 | } |
1871 | } |
1230 | |
1872 | |
1231 | # if EV_PERIODIC_ENABLE |
1873 | # if EV_PERIODIC_ENABLE |
1232 | periodics_reschedule (EV_A); |
1874 | periodics_reschedule (EV_A); |
1233 | # endif |
1875 | # endif |
1234 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1876 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1235 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1877 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1236 | } |
|
|
1237 | } |
1878 | } |
1238 | else |
1879 | else |
1239 | #endif |
1880 | #endif |
1240 | { |
1881 | { |
1241 | ev_rt_now = ev_time (); |
1882 | ev_rt_now = ev_time (); |
1242 | |
1883 | |
1243 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1884 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
1244 | { |
1885 | { |
1245 | #if EV_PERIODIC_ENABLE |
1886 | #if EV_PERIODIC_ENABLE |
1246 | periodics_reschedule (EV_A); |
1887 | periodics_reschedule (EV_A); |
1247 | #endif |
1888 | #endif |
1248 | |
|
|
1249 | /* adjust timers. this is easy, as the offset is the same for all */ |
1889 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1250 | for (i = 0; i < timercnt; ++i) |
1890 | for (i = 0; i < timercnt; ++i) |
|
|
1891 | { |
|
|
1892 | ANHE *he = timers + i + HEAP0; |
1251 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1893 | ANHE_w (*he)->at += ev_rt_now - mn_now; |
|
|
1894 | ANHE_at_cache (*he); |
|
|
1895 | } |
1252 | } |
1896 | } |
1253 | |
1897 | |
1254 | mn_now = ev_rt_now; |
1898 | mn_now = ev_rt_now; |
1255 | } |
1899 | } |
1256 | } |
1900 | } |
… | |
… | |
1270 | static int loop_done; |
1914 | static int loop_done; |
1271 | |
1915 | |
1272 | void |
1916 | void |
1273 | ev_loop (EV_P_ int flags) |
1917 | ev_loop (EV_P_ int flags) |
1274 | { |
1918 | { |
1275 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
1919 | loop_done = EVUNLOOP_CANCEL; |
1276 | ? EVUNLOOP_ONE |
|
|
1277 | : EVUNLOOP_CANCEL; |
|
|
1278 | |
1920 | |
1279 | while (activecnt) |
1921 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
|
|
1922 | |
|
|
1923 | do |
1280 | { |
1924 | { |
|
|
1925 | #if EV_VERIFY >= 2 |
|
|
1926 | ev_loop_verify (EV_A); |
|
|
1927 | #endif |
|
|
1928 | |
|
|
1929 | #ifndef _WIN32 |
|
|
1930 | if (expect_false (curpid)) /* penalise the forking check even more */ |
|
|
1931 | if (expect_false (getpid () != curpid)) |
|
|
1932 | { |
|
|
1933 | curpid = getpid (); |
|
|
1934 | postfork = 1; |
|
|
1935 | } |
|
|
1936 | #endif |
|
|
1937 | |
|
|
1938 | #if EV_FORK_ENABLE |
|
|
1939 | /* we might have forked, so queue fork handlers */ |
|
|
1940 | if (expect_false (postfork)) |
|
|
1941 | if (forkcnt) |
|
|
1942 | { |
|
|
1943 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
|
|
1944 | call_pending (EV_A); |
|
|
1945 | } |
|
|
1946 | #endif |
|
|
1947 | |
1281 | /* queue check watchers (and execute them) */ |
1948 | /* queue prepare watchers (and execute them) */ |
1282 | if (expect_false (preparecnt)) |
1949 | if (expect_false (preparecnt)) |
1283 | { |
1950 | { |
1284 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1951 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1285 | call_pending (EV_A); |
1952 | call_pending (EV_A); |
1286 | } |
1953 | } |
1287 | |
1954 | |
|
|
1955 | if (expect_false (!activecnt)) |
|
|
1956 | break; |
|
|
1957 | |
1288 | /* we might have forked, so reify kernel state if necessary */ |
1958 | /* we might have forked, so reify kernel state if necessary */ |
1289 | if (expect_false (postfork)) |
1959 | if (expect_false (postfork)) |
1290 | loop_fork (EV_A); |
1960 | loop_fork (EV_A); |
1291 | |
1961 | |
1292 | /* update fd-related kernel structures */ |
1962 | /* update fd-related kernel structures */ |
1293 | fd_reify (EV_A); |
1963 | fd_reify (EV_A); |
1294 | |
1964 | |
1295 | /* calculate blocking time */ |
1965 | /* calculate blocking time */ |
1296 | { |
1966 | { |
1297 | double block; |
1967 | ev_tstamp waittime = 0.; |
|
|
1968 | ev_tstamp sleeptime = 0.; |
1298 | |
1969 | |
1299 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
1970 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1300 | block = 0.; /* do not block at all */ |
|
|
1301 | else |
|
|
1302 | { |
1971 | { |
1303 | /* update time to cancel out callback processing overhead */ |
1972 | /* update time to cancel out callback processing overhead */ |
1304 | #if EV_USE_MONOTONIC |
|
|
1305 | if (expect_true (have_monotonic)) |
|
|
1306 | time_update_monotonic (EV_A); |
1973 | time_update (EV_A_ 1e100); |
1307 | else |
|
|
1308 | #endif |
|
|
1309 | { |
|
|
1310 | ev_rt_now = ev_time (); |
|
|
1311 | mn_now = ev_rt_now; |
|
|
1312 | } |
|
|
1313 | |
1974 | |
1314 | block = MAX_BLOCKTIME; |
1975 | waittime = MAX_BLOCKTIME; |
1315 | |
1976 | |
1316 | if (timercnt) |
1977 | if (timercnt) |
1317 | { |
1978 | { |
1318 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1979 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
1319 | if (block > to) block = to; |
1980 | if (waittime > to) waittime = to; |
1320 | } |
1981 | } |
1321 | |
1982 | |
1322 | #if EV_PERIODIC_ENABLE |
1983 | #if EV_PERIODIC_ENABLE |
1323 | if (periodiccnt) |
1984 | if (periodiccnt) |
1324 | { |
1985 | { |
1325 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1986 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
1326 | if (block > to) block = to; |
1987 | if (waittime > to) waittime = to; |
1327 | } |
1988 | } |
1328 | #endif |
1989 | #endif |
1329 | |
1990 | |
1330 | if (expect_false (block < 0.)) block = 0.; |
1991 | if (expect_false (waittime < timeout_blocktime)) |
|
|
1992 | waittime = timeout_blocktime; |
|
|
1993 | |
|
|
1994 | sleeptime = waittime - backend_fudge; |
|
|
1995 | |
|
|
1996 | if (expect_true (sleeptime > io_blocktime)) |
|
|
1997 | sleeptime = io_blocktime; |
|
|
1998 | |
|
|
1999 | if (sleeptime) |
|
|
2000 | { |
|
|
2001 | ev_sleep (sleeptime); |
|
|
2002 | waittime -= sleeptime; |
|
|
2003 | } |
1331 | } |
2004 | } |
1332 | |
2005 | |
|
|
2006 | ++loop_count; |
1333 | backend_poll (EV_A_ block); |
2007 | backend_poll (EV_A_ waittime); |
|
|
2008 | |
|
|
2009 | /* update ev_rt_now, do magic */ |
|
|
2010 | time_update (EV_A_ waittime + sleeptime); |
1334 | } |
2011 | } |
1335 | |
|
|
1336 | /* update ev_rt_now, do magic */ |
|
|
1337 | time_update (EV_A); |
|
|
1338 | |
2012 | |
1339 | /* queue pending timers and reschedule them */ |
2013 | /* queue pending timers and reschedule them */ |
1340 | timers_reify (EV_A); /* relative timers called last */ |
2014 | timers_reify (EV_A); /* relative timers called last */ |
1341 | #if EV_PERIODIC_ENABLE |
2015 | #if EV_PERIODIC_ENABLE |
1342 | periodics_reify (EV_A); /* absolute timers called first */ |
2016 | periodics_reify (EV_A); /* absolute timers called first */ |
1343 | #endif |
2017 | #endif |
1344 | |
2018 | |
|
|
2019 | #if EV_IDLE_ENABLE |
1345 | /* queue idle watchers unless other events are pending */ |
2020 | /* queue idle watchers unless other events are pending */ |
1346 | if (idlecnt && !any_pending (EV_A)) |
2021 | idle_reify (EV_A); |
1347 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
2022 | #endif |
1348 | |
2023 | |
1349 | /* queue check watchers, to be executed first */ |
2024 | /* queue check watchers, to be executed first */ |
1350 | if (expect_false (checkcnt)) |
2025 | if (expect_false (checkcnt)) |
1351 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2026 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1352 | |
2027 | |
1353 | call_pending (EV_A); |
2028 | call_pending (EV_A); |
1354 | |
|
|
1355 | if (expect_false (loop_done)) |
|
|
1356 | break; |
|
|
1357 | } |
2029 | } |
|
|
2030 | while (expect_true ( |
|
|
2031 | activecnt |
|
|
2032 | && !loop_done |
|
|
2033 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
|
|
2034 | )); |
1358 | |
2035 | |
1359 | if (loop_done == EVUNLOOP_ONE) |
2036 | if (loop_done == EVUNLOOP_ONE) |
1360 | loop_done = EVUNLOOP_CANCEL; |
2037 | loop_done = EVUNLOOP_CANCEL; |
1361 | } |
2038 | } |
1362 | |
2039 | |
… | |
… | |
1389 | head = &(*head)->next; |
2066 | head = &(*head)->next; |
1390 | } |
2067 | } |
1391 | } |
2068 | } |
1392 | |
2069 | |
1393 | void inline_speed |
2070 | void inline_speed |
1394 | ev_clear_pending (EV_P_ W w) |
2071 | clear_pending (EV_P_ W w) |
1395 | { |
2072 | { |
1396 | if (w->pending) |
2073 | if (w->pending) |
1397 | { |
2074 | { |
1398 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
2075 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1399 | w->pending = 0; |
2076 | w->pending = 0; |
1400 | } |
2077 | } |
1401 | } |
2078 | } |
1402 | |
2079 | |
|
|
2080 | int |
|
|
2081 | ev_clear_pending (EV_P_ void *w) |
|
|
2082 | { |
|
|
2083 | W w_ = (W)w; |
|
|
2084 | int pending = w_->pending; |
|
|
2085 | |
|
|
2086 | if (expect_true (pending)) |
|
|
2087 | { |
|
|
2088 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
2089 | w_->pending = 0; |
|
|
2090 | p->w = 0; |
|
|
2091 | return p->events; |
|
|
2092 | } |
|
|
2093 | else |
|
|
2094 | return 0; |
|
|
2095 | } |
|
|
2096 | |
|
|
2097 | void inline_size |
|
|
2098 | pri_adjust (EV_P_ W w) |
|
|
2099 | { |
|
|
2100 | int pri = w->priority; |
|
|
2101 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
|
|
2102 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
|
|
2103 | w->priority = pri; |
|
|
2104 | } |
|
|
2105 | |
1403 | void inline_speed |
2106 | void inline_speed |
1404 | ev_start (EV_P_ W w, int active) |
2107 | ev_start (EV_P_ W w, int active) |
1405 | { |
2108 | { |
1406 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
2109 | pri_adjust (EV_A_ w); |
1407 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
1408 | |
|
|
1409 | w->active = active; |
2110 | w->active = active; |
1410 | ev_ref (EV_A); |
2111 | ev_ref (EV_A); |
1411 | } |
2112 | } |
1412 | |
2113 | |
1413 | void inline_size |
2114 | void inline_size |
… | |
… | |
1417 | w->active = 0; |
2118 | w->active = 0; |
1418 | } |
2119 | } |
1419 | |
2120 | |
1420 | /*****************************************************************************/ |
2121 | /*****************************************************************************/ |
1421 | |
2122 | |
1422 | void |
2123 | void noinline |
1423 | ev_io_start (EV_P_ ev_io *w) |
2124 | ev_io_start (EV_P_ ev_io *w) |
1424 | { |
2125 | { |
1425 | int fd = w->fd; |
2126 | int fd = w->fd; |
1426 | |
2127 | |
1427 | if (expect_false (ev_is_active (w))) |
2128 | if (expect_false (ev_is_active (w))) |
1428 | return; |
2129 | return; |
1429 | |
2130 | |
1430 | assert (("ev_io_start called with negative fd", fd >= 0)); |
2131 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1431 | |
2132 | |
|
|
2133 | EV_FREQUENT_CHECK; |
|
|
2134 | |
1432 | ev_start (EV_A_ (W)w, 1); |
2135 | ev_start (EV_A_ (W)w, 1); |
1433 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
2136 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1434 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
2137 | wlist_add (&anfds[fd].head, (WL)w); |
1435 | |
2138 | |
1436 | fd_change (EV_A_ fd); |
2139 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
1437 | } |
2140 | w->events &= ~EV_IOFDSET; |
1438 | |
2141 | |
1439 | void |
2142 | EV_FREQUENT_CHECK; |
|
|
2143 | } |
|
|
2144 | |
|
|
2145 | void noinline |
1440 | ev_io_stop (EV_P_ ev_io *w) |
2146 | ev_io_stop (EV_P_ ev_io *w) |
1441 | { |
2147 | { |
1442 | ev_clear_pending (EV_A_ (W)w); |
2148 | clear_pending (EV_A_ (W)w); |
1443 | if (expect_false (!ev_is_active (w))) |
2149 | if (expect_false (!ev_is_active (w))) |
1444 | return; |
2150 | return; |
1445 | |
2151 | |
1446 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
2152 | assert (("ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1447 | |
2153 | |
|
|
2154 | EV_FREQUENT_CHECK; |
|
|
2155 | |
1448 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
2156 | wlist_del (&anfds[w->fd].head, (WL)w); |
1449 | ev_stop (EV_A_ (W)w); |
2157 | ev_stop (EV_A_ (W)w); |
1450 | |
2158 | |
1451 | fd_change (EV_A_ w->fd); |
2159 | fd_change (EV_A_ w->fd, 1); |
1452 | } |
|
|
1453 | |
2160 | |
1454 | void |
2161 | EV_FREQUENT_CHECK; |
|
|
2162 | } |
|
|
2163 | |
|
|
2164 | void noinline |
1455 | ev_timer_start (EV_P_ ev_timer *w) |
2165 | ev_timer_start (EV_P_ ev_timer *w) |
1456 | { |
2166 | { |
1457 | if (expect_false (ev_is_active (w))) |
2167 | if (expect_false (ev_is_active (w))) |
1458 | return; |
2168 | return; |
1459 | |
2169 | |
1460 | ((WT)w)->at += mn_now; |
2170 | ev_at (w) += mn_now; |
1461 | |
2171 | |
1462 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
2172 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1463 | |
2173 | |
|
|
2174 | EV_FREQUENT_CHECK; |
|
|
2175 | |
|
|
2176 | ++timercnt; |
1464 | ev_start (EV_A_ (W)w, ++timercnt); |
2177 | ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); |
1465 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
2178 | array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); |
1466 | timers [timercnt - 1] = w; |
2179 | ANHE_w (timers [ev_active (w)]) = (WT)w; |
1467 | upheap ((WT *)timers, timercnt - 1); |
2180 | ANHE_at_cache (timers [ev_active (w)]); |
|
|
2181 | upheap (timers, ev_active (w)); |
1468 | |
2182 | |
|
|
2183 | EV_FREQUENT_CHECK; |
|
|
2184 | |
1469 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
2185 | /*assert (("internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
1470 | } |
2186 | } |
1471 | |
2187 | |
1472 | void |
2188 | void noinline |
1473 | ev_timer_stop (EV_P_ ev_timer *w) |
2189 | ev_timer_stop (EV_P_ ev_timer *w) |
1474 | { |
2190 | { |
1475 | ev_clear_pending (EV_A_ (W)w); |
2191 | clear_pending (EV_A_ (W)w); |
1476 | if (expect_false (!ev_is_active (w))) |
2192 | if (expect_false (!ev_is_active (w))) |
1477 | return; |
2193 | return; |
1478 | |
2194 | |
|
|
2195 | EV_FREQUENT_CHECK; |
|
|
2196 | |
|
|
2197 | { |
|
|
2198 | int active = ev_active (w); |
|
|
2199 | |
1479 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
2200 | assert (("internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); |
1480 | |
2201 | |
|
|
2202 | --timercnt; |
|
|
2203 | |
1481 | if (expect_true (((W)w)->active < timercnt--)) |
2204 | if (expect_true (active < timercnt + HEAP0)) |
1482 | { |
2205 | { |
1483 | timers [((W)w)->active - 1] = timers [timercnt]; |
2206 | timers [active] = timers [timercnt + HEAP0]; |
1484 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
2207 | adjustheap (timers, timercnt, active); |
1485 | } |
2208 | } |
|
|
2209 | } |
1486 | |
2210 | |
1487 | ((WT)w)->at -= mn_now; |
2211 | EV_FREQUENT_CHECK; |
|
|
2212 | |
|
|
2213 | ev_at (w) -= mn_now; |
1488 | |
2214 | |
1489 | ev_stop (EV_A_ (W)w); |
2215 | ev_stop (EV_A_ (W)w); |
1490 | } |
2216 | } |
1491 | |
2217 | |
1492 | void |
2218 | void noinline |
1493 | ev_timer_again (EV_P_ ev_timer *w) |
2219 | ev_timer_again (EV_P_ ev_timer *w) |
1494 | { |
2220 | { |
|
|
2221 | EV_FREQUENT_CHECK; |
|
|
2222 | |
1495 | if (ev_is_active (w)) |
2223 | if (ev_is_active (w)) |
1496 | { |
2224 | { |
1497 | if (w->repeat) |
2225 | if (w->repeat) |
1498 | { |
2226 | { |
1499 | ((WT)w)->at = mn_now + w->repeat; |
2227 | ev_at (w) = mn_now + w->repeat; |
|
|
2228 | ANHE_at_cache (timers [ev_active (w)]); |
1500 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
2229 | adjustheap (timers, timercnt, ev_active (w)); |
1501 | } |
2230 | } |
1502 | else |
2231 | else |
1503 | ev_timer_stop (EV_A_ w); |
2232 | ev_timer_stop (EV_A_ w); |
1504 | } |
2233 | } |
1505 | else if (w->repeat) |
2234 | else if (w->repeat) |
1506 | { |
2235 | { |
1507 | w->at = w->repeat; |
2236 | ev_at (w) = w->repeat; |
1508 | ev_timer_start (EV_A_ w); |
2237 | ev_timer_start (EV_A_ w); |
1509 | } |
2238 | } |
|
|
2239 | |
|
|
2240 | EV_FREQUENT_CHECK; |
1510 | } |
2241 | } |
1511 | |
2242 | |
1512 | #if EV_PERIODIC_ENABLE |
2243 | #if EV_PERIODIC_ENABLE |
1513 | void |
2244 | void noinline |
1514 | ev_periodic_start (EV_P_ ev_periodic *w) |
2245 | ev_periodic_start (EV_P_ ev_periodic *w) |
1515 | { |
2246 | { |
1516 | if (expect_false (ev_is_active (w))) |
2247 | if (expect_false (ev_is_active (w))) |
1517 | return; |
2248 | return; |
1518 | |
2249 | |
1519 | if (w->reschedule_cb) |
2250 | if (w->reschedule_cb) |
1520 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
2251 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
1521 | else if (w->interval) |
2252 | else if (w->interval) |
1522 | { |
2253 | { |
1523 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2254 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1524 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
2255 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1525 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
2256 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1526 | } |
2257 | } |
|
|
2258 | else |
|
|
2259 | ev_at (w) = w->offset; |
1527 | |
2260 | |
|
|
2261 | EV_FREQUENT_CHECK; |
|
|
2262 | |
|
|
2263 | ++periodiccnt; |
1528 | ev_start (EV_A_ (W)w, ++periodiccnt); |
2264 | ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); |
1529 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
2265 | array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); |
1530 | periodics [periodiccnt - 1] = w; |
2266 | ANHE_w (periodics [ev_active (w)]) = (WT)w; |
1531 | upheap ((WT *)periodics, periodiccnt - 1); |
2267 | ANHE_at_cache (periodics [ev_active (w)]); |
|
|
2268 | upheap (periodics, ev_active (w)); |
1532 | |
2269 | |
|
|
2270 | EV_FREQUENT_CHECK; |
|
|
2271 | |
1533 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
2272 | /*assert (("internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
1534 | } |
2273 | } |
1535 | |
2274 | |
1536 | void |
2275 | void noinline |
1537 | ev_periodic_stop (EV_P_ ev_periodic *w) |
2276 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1538 | { |
2277 | { |
1539 | ev_clear_pending (EV_A_ (W)w); |
2278 | clear_pending (EV_A_ (W)w); |
1540 | if (expect_false (!ev_is_active (w))) |
2279 | if (expect_false (!ev_is_active (w))) |
1541 | return; |
2280 | return; |
1542 | |
2281 | |
|
|
2282 | EV_FREQUENT_CHECK; |
|
|
2283 | |
|
|
2284 | { |
|
|
2285 | int active = ev_active (w); |
|
|
2286 | |
1543 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
2287 | assert (("internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); |
1544 | |
2288 | |
|
|
2289 | --periodiccnt; |
|
|
2290 | |
1545 | if (expect_true (((W)w)->active < periodiccnt--)) |
2291 | if (expect_true (active < periodiccnt + HEAP0)) |
1546 | { |
2292 | { |
1547 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
2293 | periodics [active] = periodics [periodiccnt + HEAP0]; |
1548 | adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
2294 | adjustheap (periodics, periodiccnt, active); |
1549 | } |
2295 | } |
|
|
2296 | } |
|
|
2297 | |
|
|
2298 | EV_FREQUENT_CHECK; |
1550 | |
2299 | |
1551 | ev_stop (EV_A_ (W)w); |
2300 | ev_stop (EV_A_ (W)w); |
1552 | } |
2301 | } |
1553 | |
2302 | |
1554 | void |
2303 | void noinline |
1555 | ev_periodic_again (EV_P_ ev_periodic *w) |
2304 | ev_periodic_again (EV_P_ ev_periodic *w) |
1556 | { |
2305 | { |
1557 | /* TODO: use adjustheap and recalculation */ |
2306 | /* TODO: use adjustheap and recalculation */ |
1558 | ev_periodic_stop (EV_A_ w); |
2307 | ev_periodic_stop (EV_A_ w); |
1559 | ev_periodic_start (EV_A_ w); |
2308 | ev_periodic_start (EV_A_ w); |
1560 | } |
2309 | } |
1561 | #endif |
2310 | #endif |
1562 | |
2311 | |
1563 | void |
2312 | #ifndef SA_RESTART |
|
|
2313 | # define SA_RESTART 0 |
|
|
2314 | #endif |
|
|
2315 | |
|
|
2316 | void noinline |
1564 | ev_idle_start (EV_P_ ev_idle *w) |
2317 | ev_signal_start (EV_P_ ev_signal *w) |
1565 | { |
2318 | { |
|
|
2319 | #if EV_MULTIPLICITY |
|
|
2320 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2321 | #endif |
1566 | if (expect_false (ev_is_active (w))) |
2322 | if (expect_false (ev_is_active (w))) |
1567 | return; |
2323 | return; |
1568 | |
2324 | |
1569 | ev_start (EV_A_ (W)w, ++idlecnt); |
2325 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1570 | array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2); |
|
|
1571 | idles [idlecnt - 1] = w; |
|
|
1572 | } |
|
|
1573 | |
2326 | |
1574 | void |
2327 | evpipe_init (EV_A); |
1575 | ev_idle_stop (EV_P_ ev_idle *w) |
2328 | |
1576 | { |
2329 | EV_FREQUENT_CHECK; |
1577 | ev_clear_pending (EV_A_ (W)w); |
|
|
1578 | if (expect_false (!ev_is_active (w))) |
|
|
1579 | return; |
|
|
1580 | |
2330 | |
1581 | { |
2331 | { |
1582 | int active = ((W)w)->active; |
2332 | #ifndef _WIN32 |
1583 | idles [active - 1] = idles [--idlecnt]; |
2333 | sigset_t full, prev; |
1584 | ((W)idles [active - 1])->active = active; |
2334 | sigfillset (&full); |
|
|
2335 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2336 | #endif |
|
|
2337 | |
|
|
2338 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
2339 | |
|
|
2340 | #ifndef _WIN32 |
|
|
2341 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
2342 | #endif |
1585 | } |
2343 | } |
1586 | |
2344 | |
1587 | ev_stop (EV_A_ (W)w); |
|
|
1588 | } |
|
|
1589 | |
|
|
1590 | void |
|
|
1591 | ev_prepare_start (EV_P_ ev_prepare *w) |
|
|
1592 | { |
|
|
1593 | if (expect_false (ev_is_active (w))) |
|
|
1594 | return; |
|
|
1595 | |
|
|
1596 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1597 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
|
|
1598 | prepares [preparecnt - 1] = w; |
|
|
1599 | } |
|
|
1600 | |
|
|
1601 | void |
|
|
1602 | ev_prepare_stop (EV_P_ ev_prepare *w) |
|
|
1603 | { |
|
|
1604 | ev_clear_pending (EV_A_ (W)w); |
|
|
1605 | if (expect_false (!ev_is_active (w))) |
|
|
1606 | return; |
|
|
1607 | |
|
|
1608 | { |
|
|
1609 | int active = ((W)w)->active; |
|
|
1610 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
1611 | ((W)prepares [active - 1])->active = active; |
|
|
1612 | } |
|
|
1613 | |
|
|
1614 | ev_stop (EV_A_ (W)w); |
|
|
1615 | } |
|
|
1616 | |
|
|
1617 | void |
|
|
1618 | ev_check_start (EV_P_ ev_check *w) |
|
|
1619 | { |
|
|
1620 | if (expect_false (ev_is_active (w))) |
|
|
1621 | return; |
|
|
1622 | |
|
|
1623 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1624 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
|
|
1625 | checks [checkcnt - 1] = w; |
|
|
1626 | } |
|
|
1627 | |
|
|
1628 | void |
|
|
1629 | ev_check_stop (EV_P_ ev_check *w) |
|
|
1630 | { |
|
|
1631 | ev_clear_pending (EV_A_ (W)w); |
|
|
1632 | if (expect_false (!ev_is_active (w))) |
|
|
1633 | return; |
|
|
1634 | |
|
|
1635 | { |
|
|
1636 | int active = ((W)w)->active; |
|
|
1637 | checks [active - 1] = checks [--checkcnt]; |
|
|
1638 | ((W)checks [active - 1])->active = active; |
|
|
1639 | } |
|
|
1640 | |
|
|
1641 | ev_stop (EV_A_ (W)w); |
|
|
1642 | } |
|
|
1643 | |
|
|
1644 | #ifndef SA_RESTART |
|
|
1645 | # define SA_RESTART 0 |
|
|
1646 | #endif |
|
|
1647 | |
|
|
1648 | void |
|
|
1649 | ev_signal_start (EV_P_ ev_signal *w) |
|
|
1650 | { |
|
|
1651 | #if EV_MULTIPLICITY |
|
|
1652 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1653 | #endif |
|
|
1654 | if (expect_false (ev_is_active (w))) |
|
|
1655 | return; |
|
|
1656 | |
|
|
1657 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
|
|
1658 | |
|
|
1659 | ev_start (EV_A_ (W)w, 1); |
2345 | ev_start (EV_A_ (W)w, 1); |
1660 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1661 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
2346 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1662 | |
2347 | |
1663 | if (!((WL)w)->next) |
2348 | if (!((WL)w)->next) |
1664 | { |
2349 | { |
1665 | #if _WIN32 |
2350 | #if _WIN32 |
1666 | signal (w->signum, sighandler); |
2351 | signal (w->signum, ev_sighandler); |
1667 | #else |
2352 | #else |
1668 | struct sigaction sa; |
2353 | struct sigaction sa; |
1669 | sa.sa_handler = sighandler; |
2354 | sa.sa_handler = ev_sighandler; |
1670 | sigfillset (&sa.sa_mask); |
2355 | sigfillset (&sa.sa_mask); |
1671 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2356 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1672 | sigaction (w->signum, &sa, 0); |
2357 | sigaction (w->signum, &sa, 0); |
1673 | #endif |
2358 | #endif |
1674 | } |
2359 | } |
1675 | } |
|
|
1676 | |
2360 | |
1677 | void |
2361 | EV_FREQUENT_CHECK; |
|
|
2362 | } |
|
|
2363 | |
|
|
2364 | void noinline |
1678 | ev_signal_stop (EV_P_ ev_signal *w) |
2365 | ev_signal_stop (EV_P_ ev_signal *w) |
1679 | { |
2366 | { |
1680 | ev_clear_pending (EV_A_ (W)w); |
2367 | clear_pending (EV_A_ (W)w); |
1681 | if (expect_false (!ev_is_active (w))) |
2368 | if (expect_false (!ev_is_active (w))) |
1682 | return; |
2369 | return; |
1683 | |
2370 | |
|
|
2371 | EV_FREQUENT_CHECK; |
|
|
2372 | |
1684 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
2373 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1685 | ev_stop (EV_A_ (W)w); |
2374 | ev_stop (EV_A_ (W)w); |
1686 | |
2375 | |
1687 | if (!signals [w->signum - 1].head) |
2376 | if (!signals [w->signum - 1].head) |
1688 | signal (w->signum, SIG_DFL); |
2377 | signal (w->signum, SIG_DFL); |
|
|
2378 | |
|
|
2379 | EV_FREQUENT_CHECK; |
1689 | } |
2380 | } |
1690 | |
2381 | |
1691 | void |
2382 | void |
1692 | ev_child_start (EV_P_ ev_child *w) |
2383 | ev_child_start (EV_P_ ev_child *w) |
1693 | { |
2384 | { |
… | |
… | |
1695 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2386 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1696 | #endif |
2387 | #endif |
1697 | if (expect_false (ev_is_active (w))) |
2388 | if (expect_false (ev_is_active (w))) |
1698 | return; |
2389 | return; |
1699 | |
2390 | |
|
|
2391 | EV_FREQUENT_CHECK; |
|
|
2392 | |
1700 | ev_start (EV_A_ (W)w, 1); |
2393 | ev_start (EV_A_ (W)w, 1); |
1701 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
2394 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
2395 | |
|
|
2396 | EV_FREQUENT_CHECK; |
1702 | } |
2397 | } |
1703 | |
2398 | |
1704 | void |
2399 | void |
1705 | ev_child_stop (EV_P_ ev_child *w) |
2400 | ev_child_stop (EV_P_ ev_child *w) |
1706 | { |
2401 | { |
1707 | ev_clear_pending (EV_A_ (W)w); |
2402 | clear_pending (EV_A_ (W)w); |
1708 | if (expect_false (!ev_is_active (w))) |
2403 | if (expect_false (!ev_is_active (w))) |
1709 | return; |
2404 | return; |
1710 | |
2405 | |
|
|
2406 | EV_FREQUENT_CHECK; |
|
|
2407 | |
1711 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
2408 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1712 | ev_stop (EV_A_ (W)w); |
2409 | ev_stop (EV_A_ (W)w); |
1713 | } |
|
|
1714 | |
2410 | |
|
|
2411 | EV_FREQUENT_CHECK; |
|
|
2412 | } |
|
|
2413 | |
1715 | #if EV_EMBED_ENABLE |
2414 | #if EV_STAT_ENABLE |
|
|
2415 | |
|
|
2416 | # ifdef _WIN32 |
|
|
2417 | # undef lstat |
|
|
2418 | # define lstat(a,b) _stati64 (a,b) |
|
|
2419 | # endif |
|
|
2420 | |
|
|
2421 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
2422 | #define MIN_STAT_INTERVAL 0.1074891 |
|
|
2423 | |
|
|
2424 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
|
|
2425 | |
|
|
2426 | #if EV_USE_INOTIFY |
|
|
2427 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
2428 | |
1716 | void noinline |
2429 | static void noinline |
1717 | ev_embed_sweep (EV_P_ ev_embed *w) |
2430 | infy_add (EV_P_ ev_stat *w) |
1718 | { |
2431 | { |
1719 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
2432 | 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); |
|
|
2433 | |
|
|
2434 | if (w->wd < 0) |
|
|
2435 | { |
|
|
2436 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2437 | |
|
|
2438 | /* monitor some parent directory for speedup hints */ |
|
|
2439 | /* note that exceeding the hardcoded limit is not a correctness issue, */ |
|
|
2440 | /* but an efficiency issue only */ |
|
|
2441 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
|
|
2442 | { |
|
|
2443 | char path [4096]; |
|
|
2444 | strcpy (path, w->path); |
|
|
2445 | |
|
|
2446 | do |
|
|
2447 | { |
|
|
2448 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
|
|
2449 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
|
|
2450 | |
|
|
2451 | char *pend = strrchr (path, '/'); |
|
|
2452 | |
|
|
2453 | if (!pend) |
|
|
2454 | break; /* whoops, no '/', complain to your admin */ |
|
|
2455 | |
|
|
2456 | *pend = 0; |
|
|
2457 | w->wd = inotify_add_watch (fs_fd, path, mask); |
|
|
2458 | } |
|
|
2459 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
|
|
2460 | } |
|
|
2461 | } |
|
|
2462 | else |
|
|
2463 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
2464 | |
|
|
2465 | if (w->wd >= 0) |
|
|
2466 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
2467 | } |
|
|
2468 | |
|
|
2469 | static void noinline |
|
|
2470 | infy_del (EV_P_ ev_stat *w) |
|
|
2471 | { |
|
|
2472 | int slot; |
|
|
2473 | int wd = w->wd; |
|
|
2474 | |
|
|
2475 | if (wd < 0) |
|
|
2476 | return; |
|
|
2477 | |
|
|
2478 | w->wd = -2; |
|
|
2479 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
|
|
2480 | wlist_del (&fs_hash [slot].head, (WL)w); |
|
|
2481 | |
|
|
2482 | /* remove this watcher, if others are watching it, they will rearm */ |
|
|
2483 | inotify_rm_watch (fs_fd, wd); |
|
|
2484 | } |
|
|
2485 | |
|
|
2486 | static void noinline |
|
|
2487 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
|
|
2488 | { |
|
|
2489 | if (slot < 0) |
|
|
2490 | /* overflow, need to check for all hahs slots */ |
|
|
2491 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2492 | infy_wd (EV_A_ slot, wd, ev); |
|
|
2493 | else |
|
|
2494 | { |
|
|
2495 | WL w_; |
|
|
2496 | |
|
|
2497 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
|
|
2498 | { |
|
|
2499 | ev_stat *w = (ev_stat *)w_; |
|
|
2500 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
|
|
2501 | |
|
|
2502 | if (w->wd == wd || wd == -1) |
|
|
2503 | { |
|
|
2504 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
|
|
2505 | { |
|
|
2506 | w->wd = -1; |
|
|
2507 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2508 | } |
|
|
2509 | |
|
|
2510 | stat_timer_cb (EV_A_ &w->timer, 0); |
|
|
2511 | } |
|
|
2512 | } |
|
|
2513 | } |
1720 | } |
2514 | } |
1721 | |
2515 | |
1722 | static void |
2516 | static void |
1723 | embed_cb (EV_P_ ev_io *io, int revents) |
2517 | infy_cb (EV_P_ ev_io *w, int revents) |
1724 | { |
2518 | { |
1725 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
2519 | char buf [EV_INOTIFY_BUFSIZE]; |
|
|
2520 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2521 | int ofs; |
|
|
2522 | int len = read (fs_fd, buf, sizeof (buf)); |
1726 | |
2523 | |
1727 | if (ev_cb (w)) |
2524 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
1728 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2525 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
1729 | else |
|
|
1730 | ev_embed_sweep (loop, w); |
|
|
1731 | } |
2526 | } |
1732 | |
2527 | |
1733 | void |
2528 | void inline_size |
1734 | ev_embed_start (EV_P_ ev_embed *w) |
2529 | infy_init (EV_P) |
1735 | { |
2530 | { |
1736 | if (expect_false (ev_is_active (w))) |
2531 | if (fs_fd != -2) |
1737 | return; |
2532 | return; |
1738 | |
2533 | |
|
|
2534 | fs_fd = inotify_init (); |
|
|
2535 | |
|
|
2536 | if (fs_fd >= 0) |
1739 | { |
2537 | { |
1740 | struct ev_loop *loop = w->loop; |
2538 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
1741 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2539 | ev_set_priority (&fs_w, EV_MAXPRI); |
1742 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
|
|
1743 | } |
|
|
1744 | |
|
|
1745 | ev_set_priority (&w->io, ev_priority (w)); |
|
|
1746 | ev_io_start (EV_A_ &w->io); |
2540 | ev_io_start (EV_A_ &fs_w); |
1747 | |
2541 | } |
1748 | ev_start (EV_A_ (W)w, 1); |
|
|
1749 | } |
2542 | } |
1750 | |
2543 | |
1751 | void |
2544 | void inline_size |
1752 | ev_embed_stop (EV_P_ ev_embed *w) |
2545 | infy_fork (EV_P) |
1753 | { |
2546 | { |
1754 | ev_clear_pending (EV_A_ (W)w); |
2547 | int slot; |
1755 | if (expect_false (!ev_is_active (w))) |
2548 | |
|
|
2549 | if (fs_fd < 0) |
1756 | return; |
2550 | return; |
1757 | |
2551 | |
1758 | ev_io_stop (EV_A_ &w->io); |
2552 | close (fs_fd); |
|
|
2553 | fs_fd = inotify_init (); |
1759 | |
2554 | |
1760 | ev_stop (EV_A_ (W)w); |
2555 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
1761 | } |
2556 | { |
1762 | #endif |
2557 | WL w_ = fs_hash [slot].head; |
|
|
2558 | fs_hash [slot].head = 0; |
1763 | |
2559 | |
1764 | #if EV_STAT_ENABLE |
2560 | while (w_) |
|
|
2561 | { |
|
|
2562 | ev_stat *w = (ev_stat *)w_; |
|
|
2563 | w_ = w_->next; /* lets us add this watcher */ |
1765 | |
2564 | |
|
|
2565 | w->wd = -1; |
|
|
2566 | |
|
|
2567 | if (fs_fd >= 0) |
|
|
2568 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2569 | else |
|
|
2570 | ev_timer_start (EV_A_ &w->timer); |
|
|
2571 | } |
|
|
2572 | |
|
|
2573 | } |
|
|
2574 | } |
|
|
2575 | |
|
|
2576 | #endif |
|
|
2577 | |
1766 | # ifdef _WIN32 |
2578 | #ifdef _WIN32 |
1767 | # define lstat(a,b) stat(a,b) |
2579 | # define EV_LSTAT(p,b) _stati64 (p, b) |
|
|
2580 | #else |
|
|
2581 | # define EV_LSTAT(p,b) lstat (p, b) |
1768 | # endif |
2582 | #endif |
1769 | |
2583 | |
1770 | void |
2584 | void |
1771 | ev_stat_stat (EV_P_ ev_stat *w) |
2585 | ev_stat_stat (EV_P_ ev_stat *w) |
1772 | { |
2586 | { |
1773 | if (lstat (w->path, &w->attr) < 0) |
2587 | if (lstat (w->path, &w->attr) < 0) |
1774 | w->attr.st_nlink = 0; |
2588 | w->attr.st_nlink = 0; |
1775 | else if (!w->attr.st_nlink) |
2589 | else if (!w->attr.st_nlink) |
1776 | w->attr.st_nlink = 1; |
2590 | w->attr.st_nlink = 1; |
1777 | } |
2591 | } |
1778 | |
2592 | |
1779 | static void |
2593 | static void noinline |
1780 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2594 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
1781 | { |
2595 | { |
1782 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2596 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
1783 | |
2597 | |
1784 | /* we copy this here each the time so that */ |
2598 | /* we copy this here each the time so that */ |
1785 | /* prev has the old value when the callback gets invoked */ |
2599 | /* prev has the old value when the callback gets invoked */ |
1786 | w->prev = w->attr; |
2600 | w->prev = w->attr; |
1787 | ev_stat_stat (EV_A_ w); |
2601 | ev_stat_stat (EV_A_ w); |
1788 | |
2602 | |
1789 | if (memcmp (&w->prev, &w->attr, sizeof (ev_statdata))) |
2603 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
|
|
2604 | if ( |
|
|
2605 | w->prev.st_dev != w->attr.st_dev |
|
|
2606 | || w->prev.st_ino != w->attr.st_ino |
|
|
2607 | || w->prev.st_mode != w->attr.st_mode |
|
|
2608 | || w->prev.st_nlink != w->attr.st_nlink |
|
|
2609 | || w->prev.st_uid != w->attr.st_uid |
|
|
2610 | || w->prev.st_gid != w->attr.st_gid |
|
|
2611 | || w->prev.st_rdev != w->attr.st_rdev |
|
|
2612 | || w->prev.st_size != w->attr.st_size |
|
|
2613 | || w->prev.st_atime != w->attr.st_atime |
|
|
2614 | || w->prev.st_mtime != w->attr.st_mtime |
|
|
2615 | || w->prev.st_ctime != w->attr.st_ctime |
|
|
2616 | ) { |
|
|
2617 | #if EV_USE_INOTIFY |
|
|
2618 | infy_del (EV_A_ w); |
|
|
2619 | infy_add (EV_A_ w); |
|
|
2620 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2621 | #endif |
|
|
2622 | |
1790 | ev_feed_event (EV_A_ w, EV_STAT); |
2623 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
2624 | } |
1791 | } |
2625 | } |
1792 | |
2626 | |
1793 | void |
2627 | void |
1794 | ev_stat_start (EV_P_ ev_stat *w) |
2628 | ev_stat_start (EV_P_ ev_stat *w) |
1795 | { |
2629 | { |
… | |
… | |
1800 | memset (&w->prev, 0, sizeof (ev_statdata)); |
2634 | memset (&w->prev, 0, sizeof (ev_statdata)); |
1801 | memset (&w->attr, 0, sizeof (ev_statdata)); |
2635 | memset (&w->attr, 0, sizeof (ev_statdata)); |
1802 | |
2636 | |
1803 | ev_stat_stat (EV_A_ w); |
2637 | ev_stat_stat (EV_A_ w); |
1804 | |
2638 | |
|
|
2639 | if (w->interval < MIN_STAT_INTERVAL) |
|
|
2640 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2641 | |
1805 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
2642 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
1806 | ev_set_priority (&w->timer, ev_priority (w)); |
2643 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
2644 | |
|
|
2645 | #if EV_USE_INOTIFY |
|
|
2646 | infy_init (EV_A); |
|
|
2647 | |
|
|
2648 | if (fs_fd >= 0) |
|
|
2649 | infy_add (EV_A_ w); |
|
|
2650 | else |
|
|
2651 | #endif |
1807 | ev_timer_start (EV_A_ &w->timer); |
2652 | ev_timer_start (EV_A_ &w->timer); |
1808 | |
2653 | |
1809 | ev_start (EV_A_ (W)w, 1); |
2654 | ev_start (EV_A_ (W)w, 1); |
|
|
2655 | |
|
|
2656 | EV_FREQUENT_CHECK; |
1810 | } |
2657 | } |
1811 | |
2658 | |
1812 | void |
2659 | void |
1813 | ev_stat_stop (EV_P_ ev_stat *w) |
2660 | ev_stat_stop (EV_P_ ev_stat *w) |
1814 | { |
2661 | { |
1815 | ev_clear_pending (EV_A_ (W)w); |
2662 | clear_pending (EV_A_ (W)w); |
1816 | if (expect_false (!ev_is_active (w))) |
2663 | if (expect_false (!ev_is_active (w))) |
1817 | return; |
2664 | return; |
1818 | |
2665 | |
|
|
2666 | EV_FREQUENT_CHECK; |
|
|
2667 | |
|
|
2668 | #if EV_USE_INOTIFY |
|
|
2669 | infy_del (EV_A_ w); |
|
|
2670 | #endif |
1819 | ev_timer_stop (EV_A_ &w->timer); |
2671 | ev_timer_stop (EV_A_ &w->timer); |
1820 | |
2672 | |
1821 | ev_stop (EV_A_ (W)w); |
2673 | ev_stop (EV_A_ (W)w); |
|
|
2674 | |
|
|
2675 | EV_FREQUENT_CHECK; |
|
|
2676 | } |
|
|
2677 | #endif |
|
|
2678 | |
|
|
2679 | #if EV_IDLE_ENABLE |
|
|
2680 | void |
|
|
2681 | ev_idle_start (EV_P_ ev_idle *w) |
|
|
2682 | { |
|
|
2683 | if (expect_false (ev_is_active (w))) |
|
|
2684 | return; |
|
|
2685 | |
|
|
2686 | pri_adjust (EV_A_ (W)w); |
|
|
2687 | |
|
|
2688 | EV_FREQUENT_CHECK; |
|
|
2689 | |
|
|
2690 | { |
|
|
2691 | int active = ++idlecnt [ABSPRI (w)]; |
|
|
2692 | |
|
|
2693 | ++idleall; |
|
|
2694 | ev_start (EV_A_ (W)w, active); |
|
|
2695 | |
|
|
2696 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
|
|
2697 | idles [ABSPRI (w)][active - 1] = w; |
|
|
2698 | } |
|
|
2699 | |
|
|
2700 | EV_FREQUENT_CHECK; |
|
|
2701 | } |
|
|
2702 | |
|
|
2703 | void |
|
|
2704 | ev_idle_stop (EV_P_ ev_idle *w) |
|
|
2705 | { |
|
|
2706 | clear_pending (EV_A_ (W)w); |
|
|
2707 | if (expect_false (!ev_is_active (w))) |
|
|
2708 | return; |
|
|
2709 | |
|
|
2710 | EV_FREQUENT_CHECK; |
|
|
2711 | |
|
|
2712 | { |
|
|
2713 | int active = ev_active (w); |
|
|
2714 | |
|
|
2715 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
|
|
2716 | ev_active (idles [ABSPRI (w)][active - 1]) = active; |
|
|
2717 | |
|
|
2718 | ev_stop (EV_A_ (W)w); |
|
|
2719 | --idleall; |
|
|
2720 | } |
|
|
2721 | |
|
|
2722 | EV_FREQUENT_CHECK; |
|
|
2723 | } |
|
|
2724 | #endif |
|
|
2725 | |
|
|
2726 | void |
|
|
2727 | ev_prepare_start (EV_P_ ev_prepare *w) |
|
|
2728 | { |
|
|
2729 | if (expect_false (ev_is_active (w))) |
|
|
2730 | return; |
|
|
2731 | |
|
|
2732 | EV_FREQUENT_CHECK; |
|
|
2733 | |
|
|
2734 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
2735 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
|
|
2736 | prepares [preparecnt - 1] = w; |
|
|
2737 | |
|
|
2738 | EV_FREQUENT_CHECK; |
|
|
2739 | } |
|
|
2740 | |
|
|
2741 | void |
|
|
2742 | ev_prepare_stop (EV_P_ ev_prepare *w) |
|
|
2743 | { |
|
|
2744 | clear_pending (EV_A_ (W)w); |
|
|
2745 | if (expect_false (!ev_is_active (w))) |
|
|
2746 | return; |
|
|
2747 | |
|
|
2748 | EV_FREQUENT_CHECK; |
|
|
2749 | |
|
|
2750 | { |
|
|
2751 | int active = ev_active (w); |
|
|
2752 | |
|
|
2753 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
2754 | ev_active (prepares [active - 1]) = active; |
|
|
2755 | } |
|
|
2756 | |
|
|
2757 | ev_stop (EV_A_ (W)w); |
|
|
2758 | |
|
|
2759 | EV_FREQUENT_CHECK; |
|
|
2760 | } |
|
|
2761 | |
|
|
2762 | void |
|
|
2763 | ev_check_start (EV_P_ ev_check *w) |
|
|
2764 | { |
|
|
2765 | if (expect_false (ev_is_active (w))) |
|
|
2766 | return; |
|
|
2767 | |
|
|
2768 | EV_FREQUENT_CHECK; |
|
|
2769 | |
|
|
2770 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
2771 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
|
|
2772 | checks [checkcnt - 1] = w; |
|
|
2773 | |
|
|
2774 | EV_FREQUENT_CHECK; |
|
|
2775 | } |
|
|
2776 | |
|
|
2777 | void |
|
|
2778 | ev_check_stop (EV_P_ ev_check *w) |
|
|
2779 | { |
|
|
2780 | clear_pending (EV_A_ (W)w); |
|
|
2781 | if (expect_false (!ev_is_active (w))) |
|
|
2782 | return; |
|
|
2783 | |
|
|
2784 | EV_FREQUENT_CHECK; |
|
|
2785 | |
|
|
2786 | { |
|
|
2787 | int active = ev_active (w); |
|
|
2788 | |
|
|
2789 | checks [active - 1] = checks [--checkcnt]; |
|
|
2790 | ev_active (checks [active - 1]) = active; |
|
|
2791 | } |
|
|
2792 | |
|
|
2793 | ev_stop (EV_A_ (W)w); |
|
|
2794 | |
|
|
2795 | EV_FREQUENT_CHECK; |
|
|
2796 | } |
|
|
2797 | |
|
|
2798 | #if EV_EMBED_ENABLE |
|
|
2799 | void noinline |
|
|
2800 | ev_embed_sweep (EV_P_ ev_embed *w) |
|
|
2801 | { |
|
|
2802 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2803 | } |
|
|
2804 | |
|
|
2805 | static void |
|
|
2806 | embed_io_cb (EV_P_ ev_io *io, int revents) |
|
|
2807 | { |
|
|
2808 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
|
|
2809 | |
|
|
2810 | if (ev_cb (w)) |
|
|
2811 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
|
|
2812 | else |
|
|
2813 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2814 | } |
|
|
2815 | |
|
|
2816 | static void |
|
|
2817 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
2818 | { |
|
|
2819 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
2820 | |
|
|
2821 | { |
|
|
2822 | struct ev_loop *loop = w->other; |
|
|
2823 | |
|
|
2824 | while (fdchangecnt) |
|
|
2825 | { |
|
|
2826 | fd_reify (EV_A); |
|
|
2827 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2828 | } |
|
|
2829 | } |
|
|
2830 | } |
|
|
2831 | |
|
|
2832 | #if 0 |
|
|
2833 | static void |
|
|
2834 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
2835 | { |
|
|
2836 | ev_idle_stop (EV_A_ idle); |
|
|
2837 | } |
|
|
2838 | #endif |
|
|
2839 | |
|
|
2840 | void |
|
|
2841 | ev_embed_start (EV_P_ ev_embed *w) |
|
|
2842 | { |
|
|
2843 | if (expect_false (ev_is_active (w))) |
|
|
2844 | return; |
|
|
2845 | |
|
|
2846 | { |
|
|
2847 | struct ev_loop *loop = w->other; |
|
|
2848 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
|
|
2849 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
|
|
2850 | } |
|
|
2851 | |
|
|
2852 | EV_FREQUENT_CHECK; |
|
|
2853 | |
|
|
2854 | ev_set_priority (&w->io, ev_priority (w)); |
|
|
2855 | ev_io_start (EV_A_ &w->io); |
|
|
2856 | |
|
|
2857 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
2858 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
2859 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
2860 | |
|
|
2861 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
2862 | |
|
|
2863 | ev_start (EV_A_ (W)w, 1); |
|
|
2864 | |
|
|
2865 | EV_FREQUENT_CHECK; |
|
|
2866 | } |
|
|
2867 | |
|
|
2868 | void |
|
|
2869 | ev_embed_stop (EV_P_ ev_embed *w) |
|
|
2870 | { |
|
|
2871 | clear_pending (EV_A_ (W)w); |
|
|
2872 | if (expect_false (!ev_is_active (w))) |
|
|
2873 | return; |
|
|
2874 | |
|
|
2875 | EV_FREQUENT_CHECK; |
|
|
2876 | |
|
|
2877 | ev_io_stop (EV_A_ &w->io); |
|
|
2878 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
2879 | |
|
|
2880 | ev_stop (EV_A_ (W)w); |
|
|
2881 | |
|
|
2882 | EV_FREQUENT_CHECK; |
|
|
2883 | } |
|
|
2884 | #endif |
|
|
2885 | |
|
|
2886 | #if EV_FORK_ENABLE |
|
|
2887 | void |
|
|
2888 | ev_fork_start (EV_P_ ev_fork *w) |
|
|
2889 | { |
|
|
2890 | if (expect_false (ev_is_active (w))) |
|
|
2891 | return; |
|
|
2892 | |
|
|
2893 | EV_FREQUENT_CHECK; |
|
|
2894 | |
|
|
2895 | ev_start (EV_A_ (W)w, ++forkcnt); |
|
|
2896 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
|
|
2897 | forks [forkcnt - 1] = w; |
|
|
2898 | |
|
|
2899 | EV_FREQUENT_CHECK; |
|
|
2900 | } |
|
|
2901 | |
|
|
2902 | void |
|
|
2903 | ev_fork_stop (EV_P_ ev_fork *w) |
|
|
2904 | { |
|
|
2905 | clear_pending (EV_A_ (W)w); |
|
|
2906 | if (expect_false (!ev_is_active (w))) |
|
|
2907 | return; |
|
|
2908 | |
|
|
2909 | EV_FREQUENT_CHECK; |
|
|
2910 | |
|
|
2911 | { |
|
|
2912 | int active = ev_active (w); |
|
|
2913 | |
|
|
2914 | forks [active - 1] = forks [--forkcnt]; |
|
|
2915 | ev_active (forks [active - 1]) = active; |
|
|
2916 | } |
|
|
2917 | |
|
|
2918 | ev_stop (EV_A_ (W)w); |
|
|
2919 | |
|
|
2920 | EV_FREQUENT_CHECK; |
|
|
2921 | } |
|
|
2922 | #endif |
|
|
2923 | |
|
|
2924 | #if EV_ASYNC_ENABLE |
|
|
2925 | void |
|
|
2926 | ev_async_start (EV_P_ ev_async *w) |
|
|
2927 | { |
|
|
2928 | if (expect_false (ev_is_active (w))) |
|
|
2929 | return; |
|
|
2930 | |
|
|
2931 | evpipe_init (EV_A); |
|
|
2932 | |
|
|
2933 | EV_FREQUENT_CHECK; |
|
|
2934 | |
|
|
2935 | ev_start (EV_A_ (W)w, ++asynccnt); |
|
|
2936 | array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); |
|
|
2937 | asyncs [asynccnt - 1] = w; |
|
|
2938 | |
|
|
2939 | EV_FREQUENT_CHECK; |
|
|
2940 | } |
|
|
2941 | |
|
|
2942 | void |
|
|
2943 | ev_async_stop (EV_P_ ev_async *w) |
|
|
2944 | { |
|
|
2945 | clear_pending (EV_A_ (W)w); |
|
|
2946 | if (expect_false (!ev_is_active (w))) |
|
|
2947 | return; |
|
|
2948 | |
|
|
2949 | EV_FREQUENT_CHECK; |
|
|
2950 | |
|
|
2951 | { |
|
|
2952 | int active = ev_active (w); |
|
|
2953 | |
|
|
2954 | asyncs [active - 1] = asyncs [--asynccnt]; |
|
|
2955 | ev_active (asyncs [active - 1]) = active; |
|
|
2956 | } |
|
|
2957 | |
|
|
2958 | ev_stop (EV_A_ (W)w); |
|
|
2959 | |
|
|
2960 | EV_FREQUENT_CHECK; |
|
|
2961 | } |
|
|
2962 | |
|
|
2963 | void |
|
|
2964 | ev_async_send (EV_P_ ev_async *w) |
|
|
2965 | { |
|
|
2966 | w->sent = 1; |
|
|
2967 | evpipe_write (EV_A_ &gotasync); |
1822 | } |
2968 | } |
1823 | #endif |
2969 | #endif |
1824 | |
2970 | |
1825 | /*****************************************************************************/ |
2971 | /*****************************************************************************/ |
1826 | |
2972 | |
… | |
… | |
1836 | once_cb (EV_P_ struct ev_once *once, int revents) |
2982 | once_cb (EV_P_ struct ev_once *once, int revents) |
1837 | { |
2983 | { |
1838 | void (*cb)(int revents, void *arg) = once->cb; |
2984 | void (*cb)(int revents, void *arg) = once->cb; |
1839 | void *arg = once->arg; |
2985 | void *arg = once->arg; |
1840 | |
2986 | |
1841 | ev_io_stop (EV_A_ &once->io); |
2987 | ev_io_stop (EV_A_ &once->io); |
1842 | ev_timer_stop (EV_A_ &once->to); |
2988 | ev_timer_stop (EV_A_ &once->to); |
1843 | ev_free (once); |
2989 | ev_free (once); |
1844 | |
2990 | |
1845 | cb (revents, arg); |
2991 | cb (revents, arg); |
1846 | } |
2992 | } |
… | |
… | |
1884 | ev_timer_set (&once->to, timeout, 0.); |
3030 | ev_timer_set (&once->to, timeout, 0.); |
1885 | ev_timer_start (EV_A_ &once->to); |
3031 | ev_timer_start (EV_A_ &once->to); |
1886 | } |
3032 | } |
1887 | } |
3033 | } |
1888 | |
3034 | |
|
|
3035 | #if EV_MULTIPLICITY |
|
|
3036 | #include "ev_wrap.h" |
|
|
3037 | #endif |
|
|
3038 | |
1889 | #ifdef __cplusplus |
3039 | #ifdef __cplusplus |
1890 | } |
3040 | } |
1891 | #endif |
3041 | #endif |
1892 | |
3042 | |