… | |
… | |
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 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 |
… | |
… | |
51 | # ifndef EV_USE_MONOTONIC |
59 | # ifndef EV_USE_MONOTONIC |
52 | # define EV_USE_MONOTONIC 0 |
60 | # define EV_USE_MONOTONIC 0 |
53 | # endif |
61 | # endif |
54 | # ifndef EV_USE_REALTIME |
62 | # ifndef EV_USE_REALTIME |
55 | # define EV_USE_REALTIME 0 |
63 | # define EV_USE_REALTIME 0 |
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64 | # endif |
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65 | # endif |
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66 | |
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67 | # ifndef EV_USE_NANOSLEEP |
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68 | # if HAVE_NANOSLEEP |
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69 | # define EV_USE_NANOSLEEP 1 |
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70 | # else |
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71 | # define EV_USE_NANOSLEEP 0 |
56 | # endif |
72 | # endif |
57 | # endif |
73 | # endif |
58 | |
74 | |
59 | # ifndef EV_USE_SELECT |
75 | # ifndef EV_USE_SELECT |
60 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
76 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
… | |
… | |
94 | # else |
110 | # else |
95 | # define EV_USE_PORT 0 |
111 | # define EV_USE_PORT 0 |
96 | # endif |
112 | # endif |
97 | # endif |
113 | # endif |
98 | |
114 | |
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115 | # ifndef EV_USE_INOTIFY |
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116 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
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117 | # define EV_USE_INOTIFY 1 |
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118 | # else |
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119 | # define EV_USE_INOTIFY 0 |
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120 | # endif |
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121 | # endif |
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122 | |
99 | #endif |
123 | #endif |
100 | |
124 | |
101 | #include <math.h> |
125 | #include <math.h> |
102 | #include <stdlib.h> |
126 | #include <stdlib.h> |
103 | #include <fcntl.h> |
127 | #include <fcntl.h> |
… | |
… | |
110 | #include <sys/types.h> |
134 | #include <sys/types.h> |
111 | #include <time.h> |
135 | #include <time.h> |
112 | |
136 | |
113 | #include <signal.h> |
137 | #include <signal.h> |
114 | |
138 | |
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139 | #ifdef EV_H |
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140 | # include EV_H |
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141 | #else |
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142 | # include "ev.h" |
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143 | #endif |
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144 | |
115 | #ifndef _WIN32 |
145 | #ifndef _WIN32 |
116 | # include <unistd.h> |
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117 | # include <sys/time.h> |
146 | # include <sys/time.h> |
118 | # include <sys/wait.h> |
147 | # include <sys/wait.h> |
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148 | # include <unistd.h> |
119 | #else |
149 | #else |
120 | # define WIN32_LEAN_AND_MEAN |
150 | # define WIN32_LEAN_AND_MEAN |
121 | # include <windows.h> |
151 | # include <windows.h> |
122 | # ifndef EV_SELECT_IS_WINSOCKET |
152 | # ifndef EV_SELECT_IS_WINSOCKET |
123 | # define EV_SELECT_IS_WINSOCKET 1 |
153 | # define EV_SELECT_IS_WINSOCKET 1 |
… | |
… | |
132 | |
162 | |
133 | #ifndef EV_USE_REALTIME |
163 | #ifndef EV_USE_REALTIME |
134 | # define EV_USE_REALTIME 0 |
164 | # define EV_USE_REALTIME 0 |
135 | #endif |
165 | #endif |
136 | |
166 | |
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167 | #ifndef EV_USE_NANOSLEEP |
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168 | # define EV_USE_NANOSLEEP 0 |
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169 | #endif |
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170 | |
137 | #ifndef EV_USE_SELECT |
171 | #ifndef EV_USE_SELECT |
138 | # define EV_USE_SELECT 1 |
172 | # define EV_USE_SELECT 1 |
139 | #endif |
173 | #endif |
140 | |
174 | |
141 | #ifndef EV_USE_POLL |
175 | #ifndef EV_USE_POLL |
… | |
… | |
156 | |
190 | |
157 | #ifndef EV_USE_PORT |
191 | #ifndef EV_USE_PORT |
158 | # define EV_USE_PORT 0 |
192 | # define EV_USE_PORT 0 |
159 | #endif |
193 | #endif |
160 | |
194 | |
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195 | #ifndef EV_USE_INOTIFY |
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196 | # define EV_USE_INOTIFY 0 |
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197 | #endif |
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198 | |
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199 | #ifndef EV_PID_HASHSIZE |
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200 | # if EV_MINIMAL |
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201 | # define EV_PID_HASHSIZE 1 |
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202 | # else |
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203 | # define EV_PID_HASHSIZE 16 |
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204 | # endif |
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205 | #endif |
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206 | |
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207 | #ifndef EV_INOTIFY_HASHSIZE |
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208 | # if EV_MINIMAL |
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209 | # define EV_INOTIFY_HASHSIZE 1 |
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210 | # else |
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211 | # define EV_INOTIFY_HASHSIZE 16 |
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212 | # endif |
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213 | #endif |
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214 | |
161 | /**/ |
215 | /**/ |
162 | |
216 | |
163 | #ifndef CLOCK_MONOTONIC |
217 | #ifndef CLOCK_MONOTONIC |
164 | # undef EV_USE_MONOTONIC |
218 | # undef EV_USE_MONOTONIC |
165 | # define EV_USE_MONOTONIC 0 |
219 | # define EV_USE_MONOTONIC 0 |
… | |
… | |
168 | #ifndef CLOCK_REALTIME |
222 | #ifndef CLOCK_REALTIME |
169 | # undef EV_USE_REALTIME |
223 | # undef EV_USE_REALTIME |
170 | # define EV_USE_REALTIME 0 |
224 | # define EV_USE_REALTIME 0 |
171 | #endif |
225 | #endif |
172 | |
226 | |
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227 | #if !EV_STAT_ENABLE |
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228 | # undef EV_USE_INOTIFY |
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229 | # define EV_USE_INOTIFY 0 |
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230 | #endif |
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231 | |
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232 | #if !EV_USE_NANOSLEEP |
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233 | # ifndef _WIN32 |
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234 | # include <sys/select.h> |
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235 | # endif |
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236 | #endif |
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237 | |
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238 | #if EV_USE_INOTIFY |
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239 | # include <sys/inotify.h> |
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240 | #endif |
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241 | |
173 | #if EV_SELECT_IS_WINSOCKET |
242 | #if EV_SELECT_IS_WINSOCKET |
174 | # include <winsock.h> |
243 | # include <winsock.h> |
175 | #endif |
244 | #endif |
176 | |
245 | |
177 | /**/ |
246 | /**/ |
178 | |
247 | |
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248 | /* |
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249 | * This is used to avoid floating point rounding problems. |
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250 | * It is added to ev_rt_now when scheduling periodics |
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251 | * to ensure progress, time-wise, even when rounding |
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252 | * errors are against us. |
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253 | * This value is good at least till the year 4000. |
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254 | * Better solutions welcome. |
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255 | */ |
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256 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
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257 | |
179 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
258 | #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) */ |
259 | #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 */ |
260 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
183 | |
261 | |
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 |
262 | #if __GNUC__ >= 4 |
191 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
263 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
192 | # define inline static inline |
264 | # define noinline __attribute__ ((noinline)) |
193 | #else |
265 | #else |
194 | # define expect(expr,value) (expr) |
266 | # define expect(expr,value) (expr) |
195 | # define inline static |
267 | # define noinline |
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268 | # if __STDC_VERSION__ < 199901L |
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269 | # define inline |
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270 | # endif |
196 | #endif |
271 | #endif |
197 | |
272 | |
198 | #define expect_false(expr) expect ((expr) != 0, 0) |
273 | #define expect_false(expr) expect ((expr) != 0, 0) |
199 | #define expect_true(expr) expect ((expr) != 0, 1) |
274 | #define expect_true(expr) expect ((expr) != 0, 1) |
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275 | #define inline_size static inline |
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276 | |
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277 | #if EV_MINIMAL |
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278 | # define inline_speed static noinline |
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279 | #else |
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280 | # define inline_speed static inline |
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281 | #endif |
200 | |
282 | |
201 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
283 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
202 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
284 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
203 | |
285 | |
204 | #define EMPTY0 /* required for microsofts broken pseudo-c compiler */ |
286 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
205 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
287 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
206 | |
288 | |
207 | typedef struct ev_watcher *W; |
289 | typedef ev_watcher *W; |
208 | typedef struct ev_watcher_list *WL; |
290 | typedef ev_watcher_list *WL; |
209 | typedef struct ev_watcher_time *WT; |
291 | typedef ev_watcher_time *WT; |
210 | |
292 | |
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293 | #if EV_USE_MONOTONIC |
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294 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
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295 | /* giving it a reasonably high chance of working on typical architetcures */ |
211 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
296 | static sig_atomic_t have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
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297 | #endif |
212 | |
298 | |
213 | #ifdef _WIN32 |
299 | #ifdef _WIN32 |
214 | # include "ev_win32.c" |
300 | # include "ev_win32.c" |
215 | #endif |
301 | #endif |
216 | |
302 | |
217 | /*****************************************************************************/ |
303 | /*****************************************************************************/ |
218 | |
304 | |
219 | static void (*syserr_cb)(const char *msg); |
305 | static void (*syserr_cb)(const char *msg); |
220 | |
306 | |
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307 | void |
221 | void ev_set_syserr_cb (void (*cb)(const char *msg)) |
308 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
222 | { |
309 | { |
223 | syserr_cb = cb; |
310 | syserr_cb = cb; |
224 | } |
311 | } |
225 | |
312 | |
226 | static void |
313 | static void noinline |
227 | syserr (const char *msg) |
314 | syserr (const char *msg) |
228 | { |
315 | { |
229 | if (!msg) |
316 | if (!msg) |
230 | msg = "(libev) system error"; |
317 | msg = "(libev) system error"; |
231 | |
318 | |
… | |
… | |
238 | } |
325 | } |
239 | } |
326 | } |
240 | |
327 | |
241 | static void *(*alloc)(void *ptr, long size); |
328 | static void *(*alloc)(void *ptr, long size); |
242 | |
329 | |
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330 | void |
243 | void ev_set_allocator (void *(*cb)(void *ptr, long size)) |
331 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
244 | { |
332 | { |
245 | alloc = cb; |
333 | alloc = cb; |
246 | } |
334 | } |
247 | |
335 | |
248 | static void * |
336 | inline_speed void * |
249 | ev_realloc (void *ptr, long size) |
337 | ev_realloc (void *ptr, long size) |
250 | { |
338 | { |
251 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
339 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
252 | |
340 | |
253 | if (!ptr && size) |
341 | if (!ptr && size) |
… | |
… | |
277 | typedef struct |
365 | typedef struct |
278 | { |
366 | { |
279 | W w; |
367 | W w; |
280 | int events; |
368 | int events; |
281 | } ANPENDING; |
369 | } ANPENDING; |
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370 | |
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371 | #if EV_USE_INOTIFY |
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372 | typedef struct |
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373 | { |
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374 | WL head; |
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375 | } ANFS; |
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376 | #endif |
282 | |
377 | |
283 | #if EV_MULTIPLICITY |
378 | #if EV_MULTIPLICITY |
284 | |
379 | |
285 | struct ev_loop |
380 | struct ev_loop |
286 | { |
381 | { |
… | |
… | |
320 | gettimeofday (&tv, 0); |
415 | gettimeofday (&tv, 0); |
321 | return tv.tv_sec + tv.tv_usec * 1e-6; |
416 | return tv.tv_sec + tv.tv_usec * 1e-6; |
322 | #endif |
417 | #endif |
323 | } |
418 | } |
324 | |
419 | |
325 | inline ev_tstamp |
420 | ev_tstamp inline_size |
326 | get_clock (void) |
421 | get_clock (void) |
327 | { |
422 | { |
328 | #if EV_USE_MONOTONIC |
423 | #if EV_USE_MONOTONIC |
329 | if (expect_true (have_monotonic)) |
424 | if (expect_true (have_monotonic)) |
330 | { |
425 | { |
… | |
… | |
343 | { |
438 | { |
344 | return ev_rt_now; |
439 | return ev_rt_now; |
345 | } |
440 | } |
346 | #endif |
441 | #endif |
347 | |
442 | |
348 | #define array_roundsize(type,n) (((n) | 4) & ~3) |
443 | void |
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444 | ev_sleep (ev_tstamp delay) |
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445 | { |
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446 | if (delay > 0.) |
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447 | { |
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448 | #if EV_USE_NANOSLEEP |
|
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449 | struct timespec ts; |
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450 | |
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451 | ts.tv_sec = (time_t)delay; |
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452 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
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453 | |
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454 | nanosleep (&ts, 0); |
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455 | #elif defined(_WIN32) |
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456 | Sleep (delay * 1e3); |
|
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457 | #else |
|
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458 | struct timeval tv; |
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459 | |
|
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460 | tv.tv_sec = (time_t)delay; |
|
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461 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
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462 | |
|
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463 | select (0, 0, 0, 0, &tv); |
|
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464 | #endif |
|
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465 | } |
|
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466 | } |
|
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467 | |
|
|
468 | /*****************************************************************************/ |
|
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469 | |
|
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470 | int inline_size |
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471 | array_nextsize (int elem, int cur, int cnt) |
|
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472 | { |
|
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473 | int ncur = cur + 1; |
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474 | |
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475 | do |
|
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476 | ncur <<= 1; |
|
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477 | while (cnt > ncur); |
|
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478 | |
|
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479 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
|
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480 | if (elem * ncur > 4096) |
|
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481 | { |
|
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482 | ncur *= elem; |
|
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483 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
|
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484 | ncur = ncur - sizeof (void *) * 4; |
|
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485 | ncur /= elem; |
|
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486 | } |
|
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487 | |
|
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488 | return ncur; |
|
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489 | } |
|
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490 | |
|
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491 | static noinline void * |
|
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492 | array_realloc (int elem, void *base, int *cur, int cnt) |
|
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493 | { |
|
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494 | *cur = array_nextsize (elem, *cur, cnt); |
|
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495 | return ev_realloc (base, elem * *cur); |
|
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496 | } |
349 | |
497 | |
350 | #define array_needsize(type,base,cur,cnt,init) \ |
498 | #define array_needsize(type,base,cur,cnt,init) \ |
351 | if (expect_false ((cnt) > cur)) \ |
499 | if (expect_false ((cnt) > (cur))) \ |
352 | { \ |
500 | { \ |
353 | int newcnt = cur; \ |
501 | int ocur_ = (cur); \ |
354 | do \ |
502 | (base) = (type *)array_realloc \ |
355 | { \ |
503 | (sizeof (type), (base), &(cur), (cnt)); \ |
356 | newcnt = array_roundsize (type, newcnt << 1); \ |
504 | init ((base) + (ocur_), (cur) - ocur_); \ |
357 | } \ |
|
|
358 | while ((cnt) > newcnt); \ |
|
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359 | \ |
|
|
360 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
|
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361 | init (base + cur, newcnt - cur); \ |
|
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362 | cur = newcnt; \ |
|
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363 | } |
505 | } |
364 | |
506 | |
|
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507 | #if 0 |
365 | #define array_slim(type,stem) \ |
508 | #define array_slim(type,stem) \ |
366 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
509 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
367 | { \ |
510 | { \ |
368 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
511 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
369 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
512 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
370 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
513 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
371 | } |
514 | } |
|
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515 | #endif |
372 | |
516 | |
373 | #define array_free(stem, idx) \ |
517 | #define array_free(stem, idx) \ |
374 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
518 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
375 | |
519 | |
376 | /*****************************************************************************/ |
520 | /*****************************************************************************/ |
377 | |
521 | |
378 | static void |
522 | void noinline |
|
|
523 | ev_feed_event (EV_P_ void *w, int revents) |
|
|
524 | { |
|
|
525 | W w_ = (W)w; |
|
|
526 | int pri = ABSPRI (w_); |
|
|
527 | |
|
|
528 | if (expect_false (w_->pending)) |
|
|
529 | pendings [pri][w_->pending - 1].events |= revents; |
|
|
530 | else |
|
|
531 | { |
|
|
532 | w_->pending = ++pendingcnt [pri]; |
|
|
533 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
|
|
534 | pendings [pri][w_->pending - 1].w = w_; |
|
|
535 | pendings [pri][w_->pending - 1].events = revents; |
|
|
536 | } |
|
|
537 | } |
|
|
538 | |
|
|
539 | void inline_speed |
|
|
540 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
541 | { |
|
|
542 | int i; |
|
|
543 | |
|
|
544 | for (i = 0; i < eventcnt; ++i) |
|
|
545 | ev_feed_event (EV_A_ events [i], type); |
|
|
546 | } |
|
|
547 | |
|
|
548 | /*****************************************************************************/ |
|
|
549 | |
|
|
550 | void inline_size |
379 | anfds_init (ANFD *base, int count) |
551 | anfds_init (ANFD *base, int count) |
380 | { |
552 | { |
381 | while (count--) |
553 | while (count--) |
382 | { |
554 | { |
383 | base->head = 0; |
555 | base->head = 0; |
… | |
… | |
386 | |
558 | |
387 | ++base; |
559 | ++base; |
388 | } |
560 | } |
389 | } |
561 | } |
390 | |
562 | |
391 | void |
563 | void inline_speed |
392 | ev_feed_event (EV_P_ void *w, int revents) |
|
|
393 | { |
|
|
394 | W w_ = (W)w; |
|
|
395 | |
|
|
396 | if (expect_false (w_->pending)) |
|
|
397 | { |
|
|
398 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
|
|
399 | return; |
|
|
400 | } |
|
|
401 | |
|
|
402 | if (expect_false (!w_->cb)) |
|
|
403 | return; |
|
|
404 | |
|
|
405 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
|
|
406 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2); |
|
|
407 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
|
|
408 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
|
|
409 | } |
|
|
410 | |
|
|
411 | static void |
|
|
412 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
413 | { |
|
|
414 | int i; |
|
|
415 | |
|
|
416 | for (i = 0; i < eventcnt; ++i) |
|
|
417 | ev_feed_event (EV_A_ events [i], type); |
|
|
418 | } |
|
|
419 | |
|
|
420 | inline void |
|
|
421 | fd_event (EV_P_ int fd, int revents) |
564 | fd_event (EV_P_ int fd, int revents) |
422 | { |
565 | { |
423 | ANFD *anfd = anfds + fd; |
566 | ANFD *anfd = anfds + fd; |
424 | struct ev_io *w; |
567 | ev_io *w; |
425 | |
568 | |
426 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
569 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
427 | { |
570 | { |
428 | int ev = w->events & revents; |
571 | int ev = w->events & revents; |
429 | |
572 | |
430 | if (ev) |
573 | if (ev) |
431 | ev_feed_event (EV_A_ (W)w, ev); |
574 | ev_feed_event (EV_A_ (W)w, ev); |
… | |
… | |
433 | } |
576 | } |
434 | |
577 | |
435 | void |
578 | void |
436 | ev_feed_fd_event (EV_P_ int fd, int revents) |
579 | ev_feed_fd_event (EV_P_ int fd, int revents) |
437 | { |
580 | { |
|
|
581 | if (fd >= 0 && fd < anfdmax) |
438 | fd_event (EV_A_ fd, revents); |
582 | fd_event (EV_A_ fd, revents); |
439 | } |
583 | } |
440 | |
584 | |
441 | /*****************************************************************************/ |
585 | void inline_size |
442 | |
|
|
443 | inline void |
|
|
444 | fd_reify (EV_P) |
586 | fd_reify (EV_P) |
445 | { |
587 | { |
446 | int i; |
588 | int i; |
447 | |
589 | |
448 | for (i = 0; i < fdchangecnt; ++i) |
590 | for (i = 0; i < fdchangecnt; ++i) |
449 | { |
591 | { |
450 | int fd = fdchanges [i]; |
592 | int fd = fdchanges [i]; |
451 | ANFD *anfd = anfds + fd; |
593 | ANFD *anfd = anfds + fd; |
452 | struct ev_io *w; |
594 | ev_io *w; |
453 | |
595 | |
454 | int events = 0; |
596 | unsigned char events = 0; |
455 | |
597 | |
456 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
598 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
457 | events |= w->events; |
599 | events |= (unsigned char)w->events; |
458 | |
600 | |
459 | #if EV_SELECT_IS_WINSOCKET |
601 | #if EV_SELECT_IS_WINSOCKET |
460 | if (events) |
602 | if (events) |
461 | { |
603 | { |
462 | unsigned long argp; |
604 | unsigned long argp; |
|
|
605 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
606 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
607 | #else |
463 | anfd->handle = _get_osfhandle (fd); |
608 | anfd->handle = _get_osfhandle (fd); |
|
|
609 | #endif |
464 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
610 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
465 | } |
611 | } |
466 | #endif |
612 | #endif |
467 | |
613 | |
|
|
614 | { |
|
|
615 | unsigned char o_events = anfd->events; |
|
|
616 | unsigned char o_reify = anfd->reify; |
|
|
617 | |
468 | anfd->reify = 0; |
618 | anfd->reify = 0; |
469 | |
|
|
470 | backend_modify (EV_A_ fd, anfd->events, events); |
|
|
471 | anfd->events = events; |
619 | anfd->events = events; |
|
|
620 | |
|
|
621 | if (o_events != events || o_reify & EV_IOFDSET) |
|
|
622 | backend_modify (EV_A_ fd, o_events, events); |
|
|
623 | } |
472 | } |
624 | } |
473 | |
625 | |
474 | fdchangecnt = 0; |
626 | fdchangecnt = 0; |
475 | } |
627 | } |
476 | |
628 | |
477 | static void |
629 | void inline_size |
478 | fd_change (EV_P_ int fd) |
630 | fd_change (EV_P_ int fd, int flags) |
479 | { |
631 | { |
480 | if (expect_false (anfds [fd].reify)) |
632 | unsigned char reify = anfds [fd].reify; |
481 | return; |
|
|
482 | |
|
|
483 | anfds [fd].reify = 1; |
633 | anfds [fd].reify |= flags; |
484 | |
634 | |
|
|
635 | if (expect_true (!reify)) |
|
|
636 | { |
485 | ++fdchangecnt; |
637 | ++fdchangecnt; |
486 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
638 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
487 | fdchanges [fdchangecnt - 1] = fd; |
639 | fdchanges [fdchangecnt - 1] = fd; |
|
|
640 | } |
488 | } |
641 | } |
489 | |
642 | |
490 | static void |
643 | void inline_speed |
491 | fd_kill (EV_P_ int fd) |
644 | fd_kill (EV_P_ int fd) |
492 | { |
645 | { |
493 | struct ev_io *w; |
646 | ev_io *w; |
494 | |
647 | |
495 | while ((w = (struct ev_io *)anfds [fd].head)) |
648 | while ((w = (ev_io *)anfds [fd].head)) |
496 | { |
649 | { |
497 | ev_io_stop (EV_A_ w); |
650 | ev_io_stop (EV_A_ w); |
498 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
651 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
499 | } |
652 | } |
500 | } |
653 | } |
501 | |
654 | |
502 | inline int |
655 | int inline_size |
503 | fd_valid (int fd) |
656 | fd_valid (int fd) |
504 | { |
657 | { |
505 | #ifdef _WIN32 |
658 | #ifdef _WIN32 |
506 | return _get_osfhandle (fd) != -1; |
659 | return _get_osfhandle (fd) != -1; |
507 | #else |
660 | #else |
508 | return fcntl (fd, F_GETFD) != -1; |
661 | return fcntl (fd, F_GETFD) != -1; |
509 | #endif |
662 | #endif |
510 | } |
663 | } |
511 | |
664 | |
512 | /* called on EBADF to verify fds */ |
665 | /* called on EBADF to verify fds */ |
513 | static void |
666 | static void noinline |
514 | fd_ebadf (EV_P) |
667 | fd_ebadf (EV_P) |
515 | { |
668 | { |
516 | int fd; |
669 | int fd; |
517 | |
670 | |
518 | for (fd = 0; fd < anfdmax; ++fd) |
671 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
520 | if (!fd_valid (fd) == -1 && errno == EBADF) |
673 | if (!fd_valid (fd) == -1 && errno == EBADF) |
521 | fd_kill (EV_A_ fd); |
674 | fd_kill (EV_A_ fd); |
522 | } |
675 | } |
523 | |
676 | |
524 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
677 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
525 | static void |
678 | static void noinline |
526 | fd_enomem (EV_P) |
679 | fd_enomem (EV_P) |
527 | { |
680 | { |
528 | int fd; |
681 | int fd; |
529 | |
682 | |
530 | for (fd = anfdmax; fd--; ) |
683 | for (fd = anfdmax; fd--; ) |
… | |
… | |
534 | return; |
687 | return; |
535 | } |
688 | } |
536 | } |
689 | } |
537 | |
690 | |
538 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
691 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
539 | static void |
692 | static void noinline |
540 | fd_rearm_all (EV_P) |
693 | fd_rearm_all (EV_P) |
541 | { |
694 | { |
542 | int fd; |
695 | int fd; |
543 | |
696 | |
544 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
545 | for (fd = 0; fd < anfdmax; ++fd) |
697 | for (fd = 0; fd < anfdmax; ++fd) |
546 | if (anfds [fd].events) |
698 | if (anfds [fd].events) |
547 | { |
699 | { |
548 | anfds [fd].events = 0; |
700 | anfds [fd].events = 0; |
549 | fd_change (EV_A_ fd); |
701 | fd_change (EV_A_ fd, EV_IOFDSET | 1); |
550 | } |
702 | } |
551 | } |
703 | } |
552 | |
704 | |
553 | /*****************************************************************************/ |
705 | /*****************************************************************************/ |
554 | |
706 | |
555 | static void |
707 | void inline_speed |
556 | upheap (WT *heap, int k) |
708 | upheap (WT *heap, int k) |
557 | { |
709 | { |
558 | WT w = heap [k]; |
710 | WT w = heap [k]; |
559 | |
711 | |
560 | while (k && heap [k >> 1]->at > w->at) |
712 | while (k) |
561 | { |
713 | { |
|
|
714 | int p = (k - 1) >> 1; |
|
|
715 | |
|
|
716 | if (heap [p]->at <= w->at) |
|
|
717 | break; |
|
|
718 | |
562 | heap [k] = heap [k >> 1]; |
719 | heap [k] = heap [p]; |
563 | ((W)heap [k])->active = k + 1; |
720 | ((W)heap [k])->active = k + 1; |
564 | k >>= 1; |
721 | k = p; |
565 | } |
722 | } |
566 | |
723 | |
567 | heap [k] = w; |
724 | heap [k] = w; |
568 | ((W)heap [k])->active = k + 1; |
725 | ((W)heap [k])->active = k + 1; |
569 | |
|
|
570 | } |
726 | } |
571 | |
727 | |
572 | static void |
728 | void inline_speed |
573 | downheap (WT *heap, int N, int k) |
729 | downheap (WT *heap, int N, int k) |
574 | { |
730 | { |
575 | WT w = heap [k]; |
731 | WT w = heap [k]; |
576 | |
732 | |
577 | while (k < (N >> 1)) |
733 | for (;;) |
578 | { |
734 | { |
579 | int j = k << 1; |
735 | int c = (k << 1) + 1; |
580 | |
736 | |
581 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
737 | if (c >= N) |
582 | ++j; |
|
|
583 | |
|
|
584 | if (w->at <= heap [j]->at) |
|
|
585 | break; |
738 | break; |
586 | |
739 | |
|
|
740 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
741 | ? 1 : 0; |
|
|
742 | |
|
|
743 | if (w->at <= heap [c]->at) |
|
|
744 | break; |
|
|
745 | |
587 | heap [k] = heap [j]; |
746 | heap [k] = heap [c]; |
588 | ((W)heap [k])->active = k + 1; |
747 | ((W)heap [k])->active = k + 1; |
|
|
748 | |
589 | k = j; |
749 | k = c; |
590 | } |
750 | } |
591 | |
751 | |
592 | heap [k] = w; |
752 | heap [k] = w; |
593 | ((W)heap [k])->active = k + 1; |
753 | ((W)heap [k])->active = k + 1; |
594 | } |
754 | } |
595 | |
755 | |
596 | inline void |
756 | void inline_size |
597 | adjustheap (WT *heap, int N, int k) |
757 | adjustheap (WT *heap, int N, int k) |
598 | { |
758 | { |
599 | upheap (heap, k); |
759 | upheap (heap, k); |
600 | downheap (heap, N, k); |
760 | downheap (heap, N, k); |
601 | } |
761 | } |
… | |
… | |
611 | static ANSIG *signals; |
771 | static ANSIG *signals; |
612 | static int signalmax; |
772 | static int signalmax; |
613 | |
773 | |
614 | static int sigpipe [2]; |
774 | static int sigpipe [2]; |
615 | static sig_atomic_t volatile gotsig; |
775 | static sig_atomic_t volatile gotsig; |
616 | static struct ev_io sigev; |
776 | static ev_io sigev; |
617 | |
777 | |
618 | static void |
778 | void inline_size |
619 | signals_init (ANSIG *base, int count) |
779 | signals_init (ANSIG *base, int count) |
620 | { |
780 | { |
621 | while (count--) |
781 | while (count--) |
622 | { |
782 | { |
623 | base->head = 0; |
783 | base->head = 0; |
… | |
… | |
643 | write (sigpipe [1], &signum, 1); |
803 | write (sigpipe [1], &signum, 1); |
644 | errno = old_errno; |
804 | errno = old_errno; |
645 | } |
805 | } |
646 | } |
806 | } |
647 | |
807 | |
648 | void |
808 | void noinline |
649 | ev_feed_signal_event (EV_P_ int signum) |
809 | ev_feed_signal_event (EV_P_ int signum) |
650 | { |
810 | { |
651 | WL w; |
811 | WL w; |
652 | |
812 | |
653 | #if EV_MULTIPLICITY |
813 | #if EV_MULTIPLICITY |
… | |
… | |
664 | for (w = signals [signum].head; w; w = w->next) |
824 | for (w = signals [signum].head; w; w = w->next) |
665 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
825 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
666 | } |
826 | } |
667 | |
827 | |
668 | static void |
828 | static void |
669 | sigcb (EV_P_ struct ev_io *iow, int revents) |
829 | sigcb (EV_P_ ev_io *iow, int revents) |
670 | { |
830 | { |
671 | int signum; |
831 | int signum; |
672 | |
832 | |
673 | read (sigpipe [0], &revents, 1); |
833 | read (sigpipe [0], &revents, 1); |
674 | gotsig = 0; |
834 | gotsig = 0; |
… | |
… | |
676 | for (signum = signalmax; signum--; ) |
836 | for (signum = signalmax; signum--; ) |
677 | if (signals [signum].gotsig) |
837 | if (signals [signum].gotsig) |
678 | ev_feed_signal_event (EV_A_ signum + 1); |
838 | ev_feed_signal_event (EV_A_ signum + 1); |
679 | } |
839 | } |
680 | |
840 | |
681 | static void |
841 | void inline_speed |
682 | fd_intern (int fd) |
842 | fd_intern (int fd) |
683 | { |
843 | { |
684 | #ifdef _WIN32 |
844 | #ifdef _WIN32 |
685 | int arg = 1; |
845 | int arg = 1; |
686 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
846 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
… | |
… | |
688 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
848 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
689 | fcntl (fd, F_SETFL, O_NONBLOCK); |
849 | fcntl (fd, F_SETFL, O_NONBLOCK); |
690 | #endif |
850 | #endif |
691 | } |
851 | } |
692 | |
852 | |
693 | static void |
853 | static void noinline |
694 | siginit (EV_P) |
854 | siginit (EV_P) |
695 | { |
855 | { |
696 | fd_intern (sigpipe [0]); |
856 | fd_intern (sigpipe [0]); |
697 | fd_intern (sigpipe [1]); |
857 | fd_intern (sigpipe [1]); |
698 | |
858 | |
… | |
… | |
701 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
861 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
702 | } |
862 | } |
703 | |
863 | |
704 | /*****************************************************************************/ |
864 | /*****************************************************************************/ |
705 | |
865 | |
706 | static struct ev_child *childs [PID_HASHSIZE]; |
866 | static WL childs [EV_PID_HASHSIZE]; |
707 | |
867 | |
708 | #ifndef _WIN32 |
868 | #ifndef _WIN32 |
709 | |
869 | |
710 | static struct ev_signal childev; |
870 | static ev_signal childev; |
|
|
871 | |
|
|
872 | #ifndef WIFCONTINUED |
|
|
873 | # define WIFCONTINUED(status) 0 |
|
|
874 | #endif |
|
|
875 | |
|
|
876 | void inline_speed |
|
|
877 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
|
|
878 | { |
|
|
879 | ev_child *w; |
|
|
880 | int traced = WIFSTOPPED (status) || WIFCONTINUED (status); |
|
|
881 | |
|
|
882 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
883 | { |
|
|
884 | if ((w->pid == pid || !w->pid) |
|
|
885 | && (!traced || (w->flags & 1))) |
|
|
886 | { |
|
|
887 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
|
|
888 | w->rpid = pid; |
|
|
889 | w->rstatus = status; |
|
|
890 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
891 | } |
|
|
892 | } |
|
|
893 | } |
711 | |
894 | |
712 | #ifndef WCONTINUED |
895 | #ifndef WCONTINUED |
713 | # define WCONTINUED 0 |
896 | # define WCONTINUED 0 |
714 | #endif |
897 | #endif |
715 | |
898 | |
716 | static void |
899 | static void |
717 | child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) |
|
|
718 | { |
|
|
719 | struct ev_child *w; |
|
|
720 | |
|
|
721 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
|
|
722 | if (w->pid == pid || !w->pid) |
|
|
723 | { |
|
|
724 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
|
|
725 | w->rpid = pid; |
|
|
726 | w->rstatus = status; |
|
|
727 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
728 | } |
|
|
729 | } |
|
|
730 | |
|
|
731 | static void |
|
|
732 | childcb (EV_P_ struct ev_signal *sw, int revents) |
900 | childcb (EV_P_ ev_signal *sw, int revents) |
733 | { |
901 | { |
734 | int pid, status; |
902 | int pid, status; |
735 | |
903 | |
|
|
904 | /* some systems define WCONTINUED but then fail to support it (linux 2.4) */ |
736 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
905 | if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
737 | { |
906 | if (!WCONTINUED |
|
|
907 | || errno != EINVAL |
|
|
908 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
|
|
909 | return; |
|
|
910 | |
738 | /* make sure we are called again until all childs have been reaped */ |
911 | /* make sure we are called again until all childs have been reaped */ |
739 | /* we need to do it this way so that the callback gets called before we continue */ |
912 | /* we need to do it this way so that the callback gets called before we continue */ |
740 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
913 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
741 | |
914 | |
742 | child_reap (EV_A_ sw, pid, pid, status); |
915 | child_reap (EV_A_ sw, pid, pid, status); |
|
|
916 | if (EV_PID_HASHSIZE > 1) |
743 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
917 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
744 | } |
|
|
745 | } |
918 | } |
746 | |
919 | |
747 | #endif |
920 | #endif |
748 | |
921 | |
749 | /*****************************************************************************/ |
922 | /*****************************************************************************/ |
… | |
… | |
775 | { |
948 | { |
776 | return EV_VERSION_MINOR; |
949 | return EV_VERSION_MINOR; |
777 | } |
950 | } |
778 | |
951 | |
779 | /* return true if we are running with elevated privileges and should ignore env variables */ |
952 | /* return true if we are running with elevated privileges and should ignore env variables */ |
780 | static int |
953 | int inline_size |
781 | enable_secure (void) |
954 | enable_secure (void) |
782 | { |
955 | { |
783 | #ifdef _WIN32 |
956 | #ifdef _WIN32 |
784 | return 0; |
957 | return 0; |
785 | #else |
958 | #else |
… | |
… | |
821 | } |
994 | } |
822 | |
995 | |
823 | unsigned int |
996 | unsigned int |
824 | ev_embeddable_backends (void) |
997 | ev_embeddable_backends (void) |
825 | { |
998 | { |
826 | return EVBACKEND_EPOLL |
999 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
827 | | EVBACKEND_KQUEUE |
1000 | |
828 | | EVBACKEND_PORT; |
1001 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1002 | /* please fix it and tell me how to detect the fix */ |
|
|
1003 | flags &= ~EVBACKEND_EPOLL; |
|
|
1004 | |
|
|
1005 | return flags; |
829 | } |
1006 | } |
830 | |
1007 | |
831 | unsigned int |
1008 | unsigned int |
832 | ev_backend (EV_P) |
1009 | ev_backend (EV_P) |
833 | { |
1010 | { |
834 | return backend; |
1011 | return backend; |
835 | } |
1012 | } |
836 | |
1013 | |
837 | static void |
1014 | unsigned int |
|
|
1015 | ev_loop_count (EV_P) |
|
|
1016 | { |
|
|
1017 | return loop_count; |
|
|
1018 | } |
|
|
1019 | |
|
|
1020 | void |
|
|
1021 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1022 | { |
|
|
1023 | io_blocktime = interval; |
|
|
1024 | } |
|
|
1025 | |
|
|
1026 | void |
|
|
1027 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
|
|
1028 | { |
|
|
1029 | timeout_blocktime = interval; |
|
|
1030 | } |
|
|
1031 | |
|
|
1032 | static void noinline |
838 | loop_init (EV_P_ unsigned int flags) |
1033 | loop_init (EV_P_ unsigned int flags) |
839 | { |
1034 | { |
840 | if (!backend) |
1035 | if (!backend) |
841 | { |
1036 | { |
842 | #if EV_USE_MONOTONIC |
1037 | #if EV_USE_MONOTONIC |
… | |
… | |
850 | ev_rt_now = ev_time (); |
1045 | ev_rt_now = ev_time (); |
851 | mn_now = get_clock (); |
1046 | mn_now = get_clock (); |
852 | now_floor = mn_now; |
1047 | now_floor = mn_now; |
853 | rtmn_diff = ev_rt_now - mn_now; |
1048 | rtmn_diff = ev_rt_now - mn_now; |
854 | |
1049 | |
|
|
1050 | io_blocktime = 0.; |
|
|
1051 | timeout_blocktime = 0.; |
|
|
1052 | |
|
|
1053 | /* pid check not overridable via env */ |
|
|
1054 | #ifndef _WIN32 |
|
|
1055 | if (flags & EVFLAG_FORKCHECK) |
|
|
1056 | curpid = getpid (); |
|
|
1057 | #endif |
|
|
1058 | |
855 | if (!(flags & EVFLAG_NOENV) |
1059 | if (!(flags & EVFLAG_NOENV) |
856 | && !enable_secure () |
1060 | && !enable_secure () |
857 | && getenv ("LIBEV_FLAGS")) |
1061 | && getenv ("LIBEV_FLAGS")) |
858 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1062 | flags = atoi (getenv ("LIBEV_FLAGS")); |
859 | |
1063 | |
860 | if (!(flags & 0x0000ffffUL)) |
1064 | if (!(flags & 0x0000ffffUL)) |
861 | flags |= ev_recommended_backends (); |
1065 | flags |= ev_recommended_backends (); |
862 | |
1066 | |
863 | backend = 0; |
1067 | backend = 0; |
|
|
1068 | backend_fd = -1; |
|
|
1069 | #if EV_USE_INOTIFY |
|
|
1070 | fs_fd = -2; |
|
|
1071 | #endif |
|
|
1072 | |
864 | #if EV_USE_PORT |
1073 | #if EV_USE_PORT |
865 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1074 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
866 | #endif |
1075 | #endif |
867 | #if EV_USE_KQUEUE |
1076 | #if EV_USE_KQUEUE |
868 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
1077 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
880 | ev_init (&sigev, sigcb); |
1089 | ev_init (&sigev, sigcb); |
881 | ev_set_priority (&sigev, EV_MAXPRI); |
1090 | ev_set_priority (&sigev, EV_MAXPRI); |
882 | } |
1091 | } |
883 | } |
1092 | } |
884 | |
1093 | |
885 | static void |
1094 | static void noinline |
886 | loop_destroy (EV_P) |
1095 | loop_destroy (EV_P) |
887 | { |
1096 | { |
888 | int i; |
1097 | int i; |
|
|
1098 | |
|
|
1099 | #if EV_USE_INOTIFY |
|
|
1100 | if (fs_fd >= 0) |
|
|
1101 | close (fs_fd); |
|
|
1102 | #endif |
|
|
1103 | |
|
|
1104 | if (backend_fd >= 0) |
|
|
1105 | close (backend_fd); |
889 | |
1106 | |
890 | #if EV_USE_PORT |
1107 | #if EV_USE_PORT |
891 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1108 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
892 | #endif |
1109 | #endif |
893 | #if EV_USE_KQUEUE |
1110 | #if EV_USE_KQUEUE |
… | |
… | |
902 | #if EV_USE_SELECT |
1119 | #if EV_USE_SELECT |
903 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
1120 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
904 | #endif |
1121 | #endif |
905 | |
1122 | |
906 | for (i = NUMPRI; i--; ) |
1123 | for (i = NUMPRI; i--; ) |
|
|
1124 | { |
907 | array_free (pending, [i]); |
1125 | array_free (pending, [i]); |
|
|
1126 | #if EV_IDLE_ENABLE |
|
|
1127 | array_free (idle, [i]); |
|
|
1128 | #endif |
|
|
1129 | } |
|
|
1130 | |
|
|
1131 | ev_free (anfds); anfdmax = 0; |
908 | |
1132 | |
909 | /* have to use the microsoft-never-gets-it-right macro */ |
1133 | /* have to use the microsoft-never-gets-it-right macro */ |
910 | array_free (fdchange, EMPTY0); |
1134 | array_free (fdchange, EMPTY); |
911 | array_free (timer, EMPTY0); |
1135 | array_free (timer, EMPTY); |
912 | #if EV_PERIODICS |
1136 | #if EV_PERIODIC_ENABLE |
913 | array_free (periodic, EMPTY0); |
1137 | array_free (periodic, EMPTY); |
914 | #endif |
1138 | #endif |
|
|
1139 | #if EV_FORK_ENABLE |
915 | array_free (idle, EMPTY0); |
1140 | array_free (fork, EMPTY); |
|
|
1141 | #endif |
916 | array_free (prepare, EMPTY0); |
1142 | array_free (prepare, EMPTY); |
917 | array_free (check, EMPTY0); |
1143 | array_free (check, EMPTY); |
918 | |
1144 | |
919 | backend = 0; |
1145 | backend = 0; |
920 | } |
1146 | } |
921 | |
1147 | |
922 | static void |
1148 | void inline_size infy_fork (EV_P); |
|
|
1149 | |
|
|
1150 | void inline_size |
923 | loop_fork (EV_P) |
1151 | loop_fork (EV_P) |
924 | { |
1152 | { |
925 | #if EV_USE_PORT |
1153 | #if EV_USE_PORT |
926 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
1154 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
927 | #endif |
1155 | #endif |
928 | #if EV_USE_KQUEUE |
1156 | #if EV_USE_KQUEUE |
929 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
1157 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
930 | #endif |
1158 | #endif |
931 | #if EV_USE_EPOLL |
1159 | #if EV_USE_EPOLL |
932 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
1160 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
|
|
1161 | #endif |
|
|
1162 | #if EV_USE_INOTIFY |
|
|
1163 | infy_fork (EV_A); |
933 | #endif |
1164 | #endif |
934 | |
1165 | |
935 | if (ev_is_active (&sigev)) |
1166 | if (ev_is_active (&sigev)) |
936 | { |
1167 | { |
937 | /* default loop */ |
1168 | /* default loop */ |
… | |
… | |
943 | |
1174 | |
944 | while (pipe (sigpipe)) |
1175 | while (pipe (sigpipe)) |
945 | syserr ("(libev) error creating pipe"); |
1176 | syserr ("(libev) error creating pipe"); |
946 | |
1177 | |
947 | siginit (EV_A); |
1178 | siginit (EV_A); |
|
|
1179 | sigcb (EV_A_ &sigev, EV_READ); |
948 | } |
1180 | } |
949 | |
1181 | |
950 | postfork = 0; |
1182 | postfork = 0; |
951 | } |
1183 | } |
952 | |
1184 | |
… | |
… | |
974 | } |
1206 | } |
975 | |
1207 | |
976 | void |
1208 | void |
977 | ev_loop_fork (EV_P) |
1209 | ev_loop_fork (EV_P) |
978 | { |
1210 | { |
979 | postfork = 1; |
1211 | postfork = 1; /* must be in line with ev_default_fork */ |
980 | } |
1212 | } |
981 | |
1213 | |
982 | #endif |
1214 | #endif |
983 | |
1215 | |
984 | #if EV_MULTIPLICITY |
1216 | #if EV_MULTIPLICITY |
… | |
… | |
1048 | #if EV_MULTIPLICITY |
1280 | #if EV_MULTIPLICITY |
1049 | struct ev_loop *loop = ev_default_loop_ptr; |
1281 | struct ev_loop *loop = ev_default_loop_ptr; |
1050 | #endif |
1282 | #endif |
1051 | |
1283 | |
1052 | if (backend) |
1284 | if (backend) |
1053 | postfork = 1; |
1285 | postfork = 1; /* must be in line with ev_loop_fork */ |
1054 | } |
1286 | } |
1055 | |
1287 | |
1056 | /*****************************************************************************/ |
1288 | /*****************************************************************************/ |
1057 | |
1289 | |
1058 | static int |
1290 | void |
1059 | any_pending (EV_P) |
1291 | ev_invoke (EV_P_ void *w, int revents) |
1060 | { |
1292 | { |
1061 | int pri; |
1293 | EV_CB_INVOKE ((W)w, revents); |
1062 | |
|
|
1063 | for (pri = NUMPRI; pri--; ) |
|
|
1064 | if (pendingcnt [pri]) |
|
|
1065 | return 1; |
|
|
1066 | |
|
|
1067 | return 0; |
|
|
1068 | } |
1294 | } |
1069 | |
1295 | |
1070 | inline void |
1296 | void inline_speed |
1071 | call_pending (EV_P) |
1297 | call_pending (EV_P) |
1072 | { |
1298 | { |
1073 | int pri; |
1299 | int pri; |
1074 | |
1300 | |
1075 | for (pri = NUMPRI; pri--; ) |
1301 | for (pri = NUMPRI; pri--; ) |
… | |
… | |
1077 | { |
1303 | { |
1078 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1304 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1079 | |
1305 | |
1080 | if (expect_true (p->w)) |
1306 | if (expect_true (p->w)) |
1081 | { |
1307 | { |
|
|
1308 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1309 | |
1082 | p->w->pending = 0; |
1310 | p->w->pending = 0; |
1083 | EV_CB_INVOKE (p->w, p->events); |
1311 | EV_CB_INVOKE (p->w, p->events); |
1084 | } |
1312 | } |
1085 | } |
1313 | } |
1086 | } |
1314 | } |
1087 | |
1315 | |
1088 | inline void |
1316 | void inline_size |
1089 | timers_reify (EV_P) |
1317 | timers_reify (EV_P) |
1090 | { |
1318 | { |
1091 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1319 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1092 | { |
1320 | { |
1093 | struct ev_timer *w = timers [0]; |
1321 | ev_timer *w = (ev_timer *)timers [0]; |
1094 | |
1322 | |
1095 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
1323 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
1096 | |
1324 | |
1097 | /* first reschedule or stop timer */ |
1325 | /* first reschedule or stop timer */ |
1098 | if (w->repeat) |
1326 | if (w->repeat) |
1099 | { |
1327 | { |
1100 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1328 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1101 | |
1329 | |
1102 | ((WT)w)->at += w->repeat; |
1330 | ((WT)w)->at += w->repeat; |
1103 | if (((WT)w)->at < mn_now) |
1331 | if (((WT)w)->at < mn_now) |
1104 | ((WT)w)->at = mn_now; |
1332 | ((WT)w)->at = mn_now; |
1105 | |
1333 | |
1106 | downheap ((WT *)timers, timercnt, 0); |
1334 | downheap (timers, timercnt, 0); |
1107 | } |
1335 | } |
1108 | else |
1336 | else |
1109 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1337 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1110 | |
1338 | |
1111 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1339 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1112 | } |
1340 | } |
1113 | } |
1341 | } |
1114 | |
1342 | |
1115 | #if EV_PERIODICS |
1343 | #if EV_PERIODIC_ENABLE |
1116 | inline void |
1344 | void inline_size |
1117 | periodics_reify (EV_P) |
1345 | periodics_reify (EV_P) |
1118 | { |
1346 | { |
1119 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1347 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
1120 | { |
1348 | { |
1121 | struct ev_periodic *w = periodics [0]; |
1349 | ev_periodic *w = (ev_periodic *)periodics [0]; |
1122 | |
1350 | |
1123 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
1351 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
1124 | |
1352 | |
1125 | /* first reschedule or stop timer */ |
1353 | /* first reschedule or stop timer */ |
1126 | if (w->reschedule_cb) |
1354 | if (w->reschedule_cb) |
1127 | { |
1355 | { |
1128 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
1356 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
1129 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
1357 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
1130 | downheap ((WT *)periodics, periodiccnt, 0); |
1358 | downheap (periodics, periodiccnt, 0); |
1131 | } |
1359 | } |
1132 | else if (w->interval) |
1360 | else if (w->interval) |
1133 | { |
1361 | { |
1134 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
1362 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1363 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
1135 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
1364 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
1136 | downheap ((WT *)periodics, periodiccnt, 0); |
1365 | downheap (periodics, periodiccnt, 0); |
1137 | } |
1366 | } |
1138 | else |
1367 | else |
1139 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1368 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1140 | |
1369 | |
1141 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1370 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1142 | } |
1371 | } |
1143 | } |
1372 | } |
1144 | |
1373 | |
1145 | static void |
1374 | static void noinline |
1146 | periodics_reschedule (EV_P) |
1375 | periodics_reschedule (EV_P) |
1147 | { |
1376 | { |
1148 | int i; |
1377 | int i; |
1149 | |
1378 | |
1150 | /* adjust periodics after time jump */ |
1379 | /* adjust periodics after time jump */ |
1151 | for (i = 0; i < periodiccnt; ++i) |
1380 | for (i = 0; i < periodiccnt; ++i) |
1152 | { |
1381 | { |
1153 | struct ev_periodic *w = periodics [i]; |
1382 | ev_periodic *w = (ev_periodic *)periodics [i]; |
1154 | |
1383 | |
1155 | if (w->reschedule_cb) |
1384 | if (w->reschedule_cb) |
1156 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1385 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1157 | else if (w->interval) |
1386 | else if (w->interval) |
1158 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1387 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1159 | } |
1388 | } |
1160 | |
1389 | |
1161 | /* now rebuild the heap */ |
1390 | /* now rebuild the heap */ |
1162 | for (i = periodiccnt >> 1; i--; ) |
1391 | for (i = periodiccnt >> 1; i--; ) |
1163 | downheap ((WT *)periodics, periodiccnt, i); |
1392 | downheap (periodics, periodiccnt, i); |
1164 | } |
1393 | } |
1165 | #endif |
1394 | #endif |
1166 | |
1395 | |
1167 | inline int |
1396 | #if EV_IDLE_ENABLE |
1168 | time_update_monotonic (EV_P) |
1397 | void inline_size |
|
|
1398 | idle_reify (EV_P) |
1169 | { |
1399 | { |
|
|
1400 | if (expect_false (idleall)) |
|
|
1401 | { |
|
|
1402 | int pri; |
|
|
1403 | |
|
|
1404 | for (pri = NUMPRI; pri--; ) |
|
|
1405 | { |
|
|
1406 | if (pendingcnt [pri]) |
|
|
1407 | break; |
|
|
1408 | |
|
|
1409 | if (idlecnt [pri]) |
|
|
1410 | { |
|
|
1411 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
|
|
1412 | break; |
|
|
1413 | } |
|
|
1414 | } |
|
|
1415 | } |
|
|
1416 | } |
|
|
1417 | #endif |
|
|
1418 | |
|
|
1419 | void inline_speed |
|
|
1420 | time_update (EV_P_ ev_tstamp max_block) |
|
|
1421 | { |
|
|
1422 | int i; |
|
|
1423 | |
|
|
1424 | #if EV_USE_MONOTONIC |
|
|
1425 | if (expect_true (have_monotonic)) |
|
|
1426 | { |
|
|
1427 | ev_tstamp odiff = rtmn_diff; |
|
|
1428 | |
1170 | mn_now = get_clock (); |
1429 | mn_now = get_clock (); |
1171 | |
1430 | |
|
|
1431 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
1432 | /* interpolate in the meantime */ |
1172 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1433 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1173 | { |
1434 | { |
1174 | ev_rt_now = rtmn_diff + mn_now; |
1435 | ev_rt_now = rtmn_diff + mn_now; |
1175 | return 0; |
1436 | return; |
1176 | } |
1437 | } |
1177 | else |
1438 | |
1178 | { |
|
|
1179 | now_floor = mn_now; |
1439 | now_floor = mn_now; |
1180 | ev_rt_now = ev_time (); |
1440 | ev_rt_now = ev_time (); |
1181 | return 1; |
|
|
1182 | } |
|
|
1183 | } |
|
|
1184 | |
1441 | |
1185 | inline void |
1442 | /* loop a few times, before making important decisions. |
1186 | time_update (EV_P) |
1443 | * on the choice of "4": one iteration isn't enough, |
1187 | { |
1444 | * in case we get preempted during the calls to |
1188 | int i; |
1445 | * ev_time and get_clock. a second call is almost guaranteed |
1189 | |
1446 | * to succeed in that case, though. and looping a few more times |
1190 | #if EV_USE_MONOTONIC |
1447 | * doesn't hurt either as we only do this on time-jumps or |
1191 | if (expect_true (have_monotonic)) |
1448 | * in the unlikely event of having been preempted here. |
1192 | { |
1449 | */ |
1193 | if (time_update_monotonic (EV_A)) |
1450 | for (i = 4; --i; ) |
1194 | { |
1451 | { |
1195 | ev_tstamp odiff = rtmn_diff; |
|
|
1196 | |
|
|
1197 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
|
|
1198 | { |
|
|
1199 | rtmn_diff = ev_rt_now - mn_now; |
1452 | rtmn_diff = ev_rt_now - mn_now; |
1200 | |
1453 | |
1201 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1454 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1202 | return; /* all is well */ |
1455 | return; /* all is well */ |
1203 | |
1456 | |
1204 | ev_rt_now = ev_time (); |
1457 | ev_rt_now = ev_time (); |
1205 | mn_now = get_clock (); |
1458 | mn_now = get_clock (); |
1206 | now_floor = mn_now; |
1459 | now_floor = mn_now; |
1207 | } |
1460 | } |
1208 | |
1461 | |
1209 | # if EV_PERIODICS |
1462 | # if EV_PERIODIC_ENABLE |
|
|
1463 | periodics_reschedule (EV_A); |
|
|
1464 | # endif |
|
|
1465 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1466 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1467 | } |
|
|
1468 | else |
|
|
1469 | #endif |
|
|
1470 | { |
|
|
1471 | ev_rt_now = ev_time (); |
|
|
1472 | |
|
|
1473 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
|
|
1474 | { |
|
|
1475 | #if EV_PERIODIC_ENABLE |
1210 | periodics_reschedule (EV_A); |
1476 | periodics_reschedule (EV_A); |
1211 | # endif |
1477 | #endif |
1212 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1213 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1214 | } |
|
|
1215 | } |
|
|
1216 | else |
|
|
1217 | #endif |
|
|
1218 | { |
|
|
1219 | ev_rt_now = ev_time (); |
|
|
1220 | |
|
|
1221 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
|
|
1222 | { |
|
|
1223 | #if EV_PERIODICS |
|
|
1224 | periodics_reschedule (EV_A); |
|
|
1225 | #endif |
|
|
1226 | |
|
|
1227 | /* adjust timers. this is easy, as the offset is the same for all */ |
1478 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
1228 | for (i = 0; i < timercnt; ++i) |
1479 | for (i = 0; i < timercnt; ++i) |
1229 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1480 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1230 | } |
1481 | } |
1231 | |
1482 | |
1232 | mn_now = ev_rt_now; |
1483 | mn_now = ev_rt_now; |
… | |
… | |
1248 | static int loop_done; |
1499 | static int loop_done; |
1249 | |
1500 | |
1250 | void |
1501 | void |
1251 | ev_loop (EV_P_ int flags) |
1502 | ev_loop (EV_P_ int flags) |
1252 | { |
1503 | { |
1253 | double block; |
|
|
1254 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
1504 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
|
|
1505 | ? EVUNLOOP_ONE |
|
|
1506 | : EVUNLOOP_CANCEL; |
1255 | |
1507 | |
1256 | while (activecnt) |
1508 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
|
|
1509 | |
|
|
1510 | do |
1257 | { |
1511 | { |
|
|
1512 | #ifndef _WIN32 |
|
|
1513 | if (expect_false (curpid)) /* penalise the forking check even more */ |
|
|
1514 | if (expect_false (getpid () != curpid)) |
|
|
1515 | { |
|
|
1516 | curpid = getpid (); |
|
|
1517 | postfork = 1; |
|
|
1518 | } |
|
|
1519 | #endif |
|
|
1520 | |
|
|
1521 | #if EV_FORK_ENABLE |
|
|
1522 | /* we might have forked, so queue fork handlers */ |
|
|
1523 | if (expect_false (postfork)) |
|
|
1524 | if (forkcnt) |
|
|
1525 | { |
|
|
1526 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
|
|
1527 | call_pending (EV_A); |
|
|
1528 | } |
|
|
1529 | #endif |
|
|
1530 | |
1258 | /* queue check watchers (and execute them) */ |
1531 | /* queue prepare watchers (and execute them) */ |
1259 | if (expect_false (preparecnt)) |
1532 | if (expect_false (preparecnt)) |
1260 | { |
1533 | { |
1261 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1534 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1262 | call_pending (EV_A); |
1535 | call_pending (EV_A); |
1263 | } |
1536 | } |
1264 | |
1537 | |
|
|
1538 | if (expect_false (!activecnt)) |
|
|
1539 | break; |
|
|
1540 | |
1265 | /* we might have forked, so reify kernel state if necessary */ |
1541 | /* we might have forked, so reify kernel state if necessary */ |
1266 | if (expect_false (postfork)) |
1542 | if (expect_false (postfork)) |
1267 | loop_fork (EV_A); |
1543 | loop_fork (EV_A); |
1268 | |
1544 | |
1269 | /* update fd-related kernel structures */ |
1545 | /* update fd-related kernel structures */ |
1270 | fd_reify (EV_A); |
1546 | fd_reify (EV_A); |
1271 | |
1547 | |
1272 | /* calculate blocking time */ |
1548 | /* calculate blocking time */ |
|
|
1549 | { |
|
|
1550 | ev_tstamp waittime = 0.; |
|
|
1551 | ev_tstamp sleeptime = 0.; |
1273 | |
1552 | |
1274 | /* we only need this for !monotonic clock or timers, but as we basically |
1553 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
1275 | always have timers, we just calculate it always */ |
|
|
1276 | #if EV_USE_MONOTONIC |
|
|
1277 | if (expect_true (have_monotonic)) |
|
|
1278 | time_update_monotonic (EV_A); |
|
|
1279 | else |
|
|
1280 | #endif |
|
|
1281 | { |
1554 | { |
1282 | ev_rt_now = ev_time (); |
1555 | /* update time to cancel out callback processing overhead */ |
1283 | mn_now = ev_rt_now; |
1556 | time_update (EV_A_ 1e100); |
1284 | } |
|
|
1285 | |
1557 | |
1286 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
|
|
1287 | block = 0.; |
|
|
1288 | else |
|
|
1289 | { |
|
|
1290 | block = MAX_BLOCKTIME; |
1558 | waittime = MAX_BLOCKTIME; |
1291 | |
1559 | |
1292 | if (timercnt) |
1560 | if (timercnt) |
1293 | { |
1561 | { |
1294 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1562 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1295 | if (block > to) block = to; |
1563 | if (waittime > to) waittime = to; |
1296 | } |
1564 | } |
1297 | |
1565 | |
1298 | #if EV_PERIODICS |
1566 | #if EV_PERIODIC_ENABLE |
1299 | if (periodiccnt) |
1567 | if (periodiccnt) |
1300 | { |
1568 | { |
1301 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1569 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1302 | if (block > to) block = to; |
1570 | if (waittime > to) waittime = to; |
1303 | } |
1571 | } |
1304 | #endif |
1572 | #endif |
1305 | |
1573 | |
1306 | if (expect_false (block < 0.)) block = 0.; |
1574 | if (expect_false (waittime < timeout_blocktime)) |
|
|
1575 | waittime = timeout_blocktime; |
|
|
1576 | |
|
|
1577 | sleeptime = waittime - backend_fudge; |
|
|
1578 | |
|
|
1579 | if (expect_true (sleeptime > io_blocktime)) |
|
|
1580 | sleeptime = io_blocktime; |
|
|
1581 | |
|
|
1582 | if (sleeptime) |
|
|
1583 | { |
|
|
1584 | ev_sleep (sleeptime); |
|
|
1585 | waittime -= sleeptime; |
|
|
1586 | } |
1307 | } |
1587 | } |
1308 | |
1588 | |
|
|
1589 | ++loop_count; |
1309 | backend_poll (EV_A_ block); |
1590 | backend_poll (EV_A_ waittime); |
1310 | |
1591 | |
1311 | /* update ev_rt_now, do magic */ |
1592 | /* update ev_rt_now, do magic */ |
1312 | time_update (EV_A); |
1593 | time_update (EV_A_ waittime + sleeptime); |
|
|
1594 | } |
1313 | |
1595 | |
1314 | /* queue pending timers and reschedule them */ |
1596 | /* queue pending timers and reschedule them */ |
1315 | timers_reify (EV_A); /* relative timers called last */ |
1597 | timers_reify (EV_A); /* relative timers called last */ |
1316 | #if EV_PERIODICS |
1598 | #if EV_PERIODIC_ENABLE |
1317 | periodics_reify (EV_A); /* absolute timers called first */ |
1599 | periodics_reify (EV_A); /* absolute timers called first */ |
1318 | #endif |
1600 | #endif |
1319 | |
1601 | |
|
|
1602 | #if EV_IDLE_ENABLE |
1320 | /* queue idle watchers unless io or timers are pending */ |
1603 | /* queue idle watchers unless other events are pending */ |
1321 | if (idlecnt && !any_pending (EV_A)) |
1604 | idle_reify (EV_A); |
1322 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1605 | #endif |
1323 | |
1606 | |
1324 | /* queue check watchers, to be executed first */ |
1607 | /* queue check watchers, to be executed first */ |
1325 | if (expect_false (checkcnt)) |
1608 | if (expect_false (checkcnt)) |
1326 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1609 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1327 | |
1610 | |
1328 | call_pending (EV_A); |
1611 | call_pending (EV_A); |
1329 | |
1612 | |
1330 | if (expect_false (loop_done)) |
|
|
1331 | break; |
|
|
1332 | } |
1613 | } |
|
|
1614 | while (expect_true (activecnt && !loop_done)); |
1333 | |
1615 | |
1334 | if (loop_done != 2) |
1616 | if (loop_done == EVUNLOOP_ONE) |
1335 | loop_done = 0; |
1617 | loop_done = EVUNLOOP_CANCEL; |
1336 | } |
1618 | } |
1337 | |
1619 | |
1338 | void |
1620 | void |
1339 | ev_unloop (EV_P_ int how) |
1621 | ev_unloop (EV_P_ int how) |
1340 | { |
1622 | { |
1341 | loop_done = how; |
1623 | loop_done = how; |
1342 | } |
1624 | } |
1343 | |
1625 | |
1344 | /*****************************************************************************/ |
1626 | /*****************************************************************************/ |
1345 | |
1627 | |
1346 | inline void |
1628 | void inline_size |
1347 | wlist_add (WL *head, WL elem) |
1629 | wlist_add (WL *head, WL elem) |
1348 | { |
1630 | { |
1349 | elem->next = *head; |
1631 | elem->next = *head; |
1350 | *head = elem; |
1632 | *head = elem; |
1351 | } |
1633 | } |
1352 | |
1634 | |
1353 | inline void |
1635 | void inline_size |
1354 | wlist_del (WL *head, WL elem) |
1636 | wlist_del (WL *head, WL elem) |
1355 | { |
1637 | { |
1356 | while (*head) |
1638 | while (*head) |
1357 | { |
1639 | { |
1358 | if (*head == elem) |
1640 | if (*head == elem) |
… | |
… | |
1363 | |
1645 | |
1364 | head = &(*head)->next; |
1646 | head = &(*head)->next; |
1365 | } |
1647 | } |
1366 | } |
1648 | } |
1367 | |
1649 | |
1368 | inline void |
1650 | void inline_speed |
1369 | ev_clear_pending (EV_P_ W w) |
1651 | clear_pending (EV_P_ W w) |
1370 | { |
1652 | { |
1371 | if (w->pending) |
1653 | if (w->pending) |
1372 | { |
1654 | { |
1373 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1655 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1374 | w->pending = 0; |
1656 | w->pending = 0; |
1375 | } |
1657 | } |
1376 | } |
1658 | } |
1377 | |
1659 | |
1378 | inline void |
1660 | int |
|
|
1661 | ev_clear_pending (EV_P_ void *w) |
|
|
1662 | { |
|
|
1663 | W w_ = (W)w; |
|
|
1664 | int pending = w_->pending; |
|
|
1665 | |
|
|
1666 | if (expect_true (pending)) |
|
|
1667 | { |
|
|
1668 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
1669 | w_->pending = 0; |
|
|
1670 | p->w = 0; |
|
|
1671 | return p->events; |
|
|
1672 | } |
|
|
1673 | else |
|
|
1674 | return 0; |
|
|
1675 | } |
|
|
1676 | |
|
|
1677 | void inline_size |
|
|
1678 | pri_adjust (EV_P_ W w) |
|
|
1679 | { |
|
|
1680 | int pri = w->priority; |
|
|
1681 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
|
|
1682 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
|
|
1683 | w->priority = pri; |
|
|
1684 | } |
|
|
1685 | |
|
|
1686 | void inline_speed |
1379 | ev_start (EV_P_ W w, int active) |
1687 | ev_start (EV_P_ W w, int active) |
1380 | { |
1688 | { |
1381 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
1689 | pri_adjust (EV_A_ w); |
1382 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
1383 | |
|
|
1384 | w->active = active; |
1690 | w->active = active; |
1385 | ev_ref (EV_A); |
1691 | ev_ref (EV_A); |
1386 | } |
1692 | } |
1387 | |
1693 | |
1388 | inline void |
1694 | void inline_size |
1389 | ev_stop (EV_P_ W w) |
1695 | ev_stop (EV_P_ W w) |
1390 | { |
1696 | { |
1391 | ev_unref (EV_A); |
1697 | ev_unref (EV_A); |
1392 | w->active = 0; |
1698 | w->active = 0; |
1393 | } |
1699 | } |
1394 | |
1700 | |
1395 | /*****************************************************************************/ |
1701 | /*****************************************************************************/ |
1396 | |
1702 | |
1397 | void |
1703 | void noinline |
1398 | ev_io_start (EV_P_ struct ev_io *w) |
1704 | ev_io_start (EV_P_ ev_io *w) |
1399 | { |
1705 | { |
1400 | int fd = w->fd; |
1706 | int fd = w->fd; |
1401 | |
1707 | |
1402 | if (expect_false (ev_is_active (w))) |
1708 | if (expect_false (ev_is_active (w))) |
1403 | return; |
1709 | return; |
1404 | |
1710 | |
1405 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1711 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1406 | |
1712 | |
1407 | ev_start (EV_A_ (W)w, 1); |
1713 | ev_start (EV_A_ (W)w, 1); |
1408 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1714 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1409 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1715 | wlist_add (&anfds[fd].head, (WL)w); |
1410 | |
1716 | |
1411 | fd_change (EV_A_ fd); |
1717 | fd_change (EV_A_ fd, w->events & EV_IOFDSET | 1); |
|
|
1718 | w->events &= ~EV_IOFDSET; |
1412 | } |
1719 | } |
1413 | |
1720 | |
1414 | void |
1721 | void noinline |
1415 | ev_io_stop (EV_P_ struct ev_io *w) |
1722 | ev_io_stop (EV_P_ ev_io *w) |
1416 | { |
1723 | { |
1417 | ev_clear_pending (EV_A_ (W)w); |
1724 | clear_pending (EV_A_ (W)w); |
1418 | if (expect_false (!ev_is_active (w))) |
1725 | if (expect_false (!ev_is_active (w))) |
1419 | return; |
1726 | return; |
1420 | |
1727 | |
1421 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1728 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1422 | |
1729 | |
1423 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1730 | wlist_del (&anfds[w->fd].head, (WL)w); |
1424 | ev_stop (EV_A_ (W)w); |
1731 | ev_stop (EV_A_ (W)w); |
1425 | |
1732 | |
1426 | fd_change (EV_A_ w->fd); |
1733 | fd_change (EV_A_ w->fd, 1); |
1427 | } |
1734 | } |
1428 | |
1735 | |
1429 | void |
1736 | void noinline |
1430 | ev_timer_start (EV_P_ struct ev_timer *w) |
1737 | ev_timer_start (EV_P_ ev_timer *w) |
1431 | { |
1738 | { |
1432 | if (expect_false (ev_is_active (w))) |
1739 | if (expect_false (ev_is_active (w))) |
1433 | return; |
1740 | return; |
1434 | |
1741 | |
1435 | ((WT)w)->at += mn_now; |
1742 | ((WT)w)->at += mn_now; |
1436 | |
1743 | |
1437 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1744 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1438 | |
1745 | |
1439 | ev_start (EV_A_ (W)w, ++timercnt); |
1746 | ev_start (EV_A_ (W)w, ++timercnt); |
1440 | array_needsize (struct ev_timer *, timers, timermax, timercnt, EMPTY2); |
1747 | array_needsize (WT, timers, timermax, timercnt, EMPTY2); |
1441 | timers [timercnt - 1] = w; |
1748 | timers [timercnt - 1] = (WT)w; |
1442 | upheap ((WT *)timers, timercnt - 1); |
1749 | upheap (timers, timercnt - 1); |
1443 | |
1750 | |
1444 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1751 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
1445 | } |
1752 | } |
1446 | |
1753 | |
1447 | void |
1754 | void noinline |
1448 | ev_timer_stop (EV_P_ struct ev_timer *w) |
1755 | ev_timer_stop (EV_P_ ev_timer *w) |
1449 | { |
1756 | { |
1450 | ev_clear_pending (EV_A_ (W)w); |
1757 | clear_pending (EV_A_ (W)w); |
1451 | if (expect_false (!ev_is_active (w))) |
1758 | if (expect_false (!ev_is_active (w))) |
1452 | return; |
1759 | return; |
1453 | |
1760 | |
1454 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1761 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == (WT)w)); |
1455 | |
1762 | |
|
|
1763 | { |
|
|
1764 | int active = ((W)w)->active; |
|
|
1765 | |
1456 | if (expect_true (((W)w)->active < timercnt--)) |
1766 | if (expect_true (--active < --timercnt)) |
1457 | { |
1767 | { |
1458 | timers [((W)w)->active - 1] = timers [timercnt]; |
1768 | timers [active] = timers [timercnt]; |
1459 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1769 | adjustheap (timers, timercnt, active); |
1460 | } |
1770 | } |
|
|
1771 | } |
1461 | |
1772 | |
1462 | ((WT)w)->at -= mn_now; |
1773 | ((WT)w)->at -= mn_now; |
1463 | |
1774 | |
1464 | ev_stop (EV_A_ (W)w); |
1775 | ev_stop (EV_A_ (W)w); |
1465 | } |
1776 | } |
1466 | |
1777 | |
1467 | void |
1778 | void noinline |
1468 | ev_timer_again (EV_P_ struct ev_timer *w) |
1779 | ev_timer_again (EV_P_ ev_timer *w) |
1469 | { |
1780 | { |
1470 | if (ev_is_active (w)) |
1781 | if (ev_is_active (w)) |
1471 | { |
1782 | { |
1472 | if (w->repeat) |
1783 | if (w->repeat) |
1473 | { |
1784 | { |
1474 | ((WT)w)->at = mn_now + w->repeat; |
1785 | ((WT)w)->at = mn_now + w->repeat; |
1475 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1786 | adjustheap (timers, timercnt, ((W)w)->active - 1); |
1476 | } |
1787 | } |
1477 | else |
1788 | else |
1478 | ev_timer_stop (EV_A_ w); |
1789 | ev_timer_stop (EV_A_ w); |
1479 | } |
1790 | } |
1480 | else if (w->repeat) |
1791 | else if (w->repeat) |
… | |
… | |
1482 | w->at = w->repeat; |
1793 | w->at = w->repeat; |
1483 | ev_timer_start (EV_A_ w); |
1794 | ev_timer_start (EV_A_ w); |
1484 | } |
1795 | } |
1485 | } |
1796 | } |
1486 | |
1797 | |
1487 | #if EV_PERIODICS |
1798 | #if EV_PERIODIC_ENABLE |
1488 | void |
1799 | void noinline |
1489 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1800 | ev_periodic_start (EV_P_ ev_periodic *w) |
1490 | { |
1801 | { |
1491 | if (expect_false (ev_is_active (w))) |
1802 | if (expect_false (ev_is_active (w))) |
1492 | return; |
1803 | return; |
1493 | |
1804 | |
1494 | if (w->reschedule_cb) |
1805 | if (w->reschedule_cb) |
1495 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1806 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1496 | else if (w->interval) |
1807 | else if (w->interval) |
1497 | { |
1808 | { |
1498 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1809 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1499 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1810 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1500 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1811 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
1501 | } |
1812 | } |
|
|
1813 | else |
|
|
1814 | ((WT)w)->at = w->offset; |
1502 | |
1815 | |
1503 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1816 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1504 | array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
1817 | array_needsize (WT, periodics, periodicmax, periodiccnt, EMPTY2); |
1505 | periodics [periodiccnt - 1] = w; |
1818 | periodics [periodiccnt - 1] = (WT)w; |
1506 | upheap ((WT *)periodics, periodiccnt - 1); |
1819 | upheap (periodics, periodiccnt - 1); |
1507 | |
1820 | |
1508 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1821 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
1509 | } |
1822 | } |
1510 | |
1823 | |
1511 | void |
1824 | void noinline |
1512 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
1825 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1513 | { |
1826 | { |
1514 | ev_clear_pending (EV_A_ (W)w); |
1827 | clear_pending (EV_A_ (W)w); |
1515 | if (expect_false (!ev_is_active (w))) |
1828 | if (expect_false (!ev_is_active (w))) |
1516 | return; |
1829 | return; |
1517 | |
1830 | |
1518 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1831 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == (WT)w)); |
1519 | |
1832 | |
|
|
1833 | { |
|
|
1834 | int active = ((W)w)->active; |
|
|
1835 | |
1520 | if (expect_true (((W)w)->active < periodiccnt--)) |
1836 | if (expect_true (--active < --periodiccnt)) |
1521 | { |
1837 | { |
1522 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1838 | periodics [active] = periodics [periodiccnt]; |
1523 | adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1839 | adjustheap (periodics, periodiccnt, active); |
1524 | } |
1840 | } |
|
|
1841 | } |
1525 | |
1842 | |
1526 | ev_stop (EV_A_ (W)w); |
1843 | ev_stop (EV_A_ (W)w); |
1527 | } |
1844 | } |
1528 | |
1845 | |
1529 | void |
1846 | void noinline |
1530 | ev_periodic_again (EV_P_ struct ev_periodic *w) |
1847 | ev_periodic_again (EV_P_ ev_periodic *w) |
1531 | { |
1848 | { |
1532 | /* TODO: use adjustheap and recalculation */ |
1849 | /* TODO: use adjustheap and recalculation */ |
1533 | ev_periodic_stop (EV_A_ w); |
1850 | ev_periodic_stop (EV_A_ w); |
1534 | ev_periodic_start (EV_A_ w); |
1851 | ev_periodic_start (EV_A_ w); |
1535 | } |
1852 | } |
1536 | #endif |
1853 | #endif |
1537 | |
1854 | |
1538 | void |
|
|
1539 | ev_idle_start (EV_P_ struct ev_idle *w) |
|
|
1540 | { |
|
|
1541 | if (expect_false (ev_is_active (w))) |
|
|
1542 | return; |
|
|
1543 | |
|
|
1544 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1545 | array_needsize (struct ev_idle *, idles, idlemax, idlecnt, EMPTY2); |
|
|
1546 | idles [idlecnt - 1] = w; |
|
|
1547 | } |
|
|
1548 | |
|
|
1549 | void |
|
|
1550 | ev_idle_stop (EV_P_ struct ev_idle *w) |
|
|
1551 | { |
|
|
1552 | ev_clear_pending (EV_A_ (W)w); |
|
|
1553 | if (expect_false (!ev_is_active (w))) |
|
|
1554 | return; |
|
|
1555 | |
|
|
1556 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
|
|
1557 | ev_stop (EV_A_ (W)w); |
|
|
1558 | } |
|
|
1559 | |
|
|
1560 | void |
|
|
1561 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
|
|
1562 | { |
|
|
1563 | if (expect_false (ev_is_active (w))) |
|
|
1564 | return; |
|
|
1565 | |
|
|
1566 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1567 | array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
|
|
1568 | prepares [preparecnt - 1] = w; |
|
|
1569 | } |
|
|
1570 | |
|
|
1571 | void |
|
|
1572 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
|
|
1573 | { |
|
|
1574 | ev_clear_pending (EV_A_ (W)w); |
|
|
1575 | if (expect_false (!ev_is_active (w))) |
|
|
1576 | return; |
|
|
1577 | |
|
|
1578 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
|
|
1579 | ev_stop (EV_A_ (W)w); |
|
|
1580 | } |
|
|
1581 | |
|
|
1582 | void |
|
|
1583 | ev_check_start (EV_P_ struct ev_check *w) |
|
|
1584 | { |
|
|
1585 | if (expect_false (ev_is_active (w))) |
|
|
1586 | return; |
|
|
1587 | |
|
|
1588 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1589 | array_needsize (struct ev_check *, checks, checkmax, checkcnt, EMPTY2); |
|
|
1590 | checks [checkcnt - 1] = w; |
|
|
1591 | } |
|
|
1592 | |
|
|
1593 | void |
|
|
1594 | ev_check_stop (EV_P_ struct ev_check *w) |
|
|
1595 | { |
|
|
1596 | ev_clear_pending (EV_A_ (W)w); |
|
|
1597 | if (expect_false (!ev_is_active (w))) |
|
|
1598 | return; |
|
|
1599 | |
|
|
1600 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
|
|
1601 | ev_stop (EV_A_ (W)w); |
|
|
1602 | } |
|
|
1603 | |
|
|
1604 | #ifndef SA_RESTART |
1855 | #ifndef SA_RESTART |
1605 | # define SA_RESTART 0 |
1856 | # define SA_RESTART 0 |
1606 | #endif |
1857 | #endif |
1607 | |
1858 | |
1608 | void |
1859 | void noinline |
1609 | ev_signal_start (EV_P_ struct ev_signal *w) |
1860 | ev_signal_start (EV_P_ ev_signal *w) |
1610 | { |
1861 | { |
1611 | #if EV_MULTIPLICITY |
1862 | #if EV_MULTIPLICITY |
1612 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1863 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1613 | #endif |
1864 | #endif |
1614 | if (expect_false (ev_is_active (w))) |
1865 | if (expect_false (ev_is_active (w))) |
1615 | return; |
1866 | return; |
1616 | |
1867 | |
1617 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1868 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1618 | |
1869 | |
|
|
1870 | { |
|
|
1871 | #ifndef _WIN32 |
|
|
1872 | sigset_t full, prev; |
|
|
1873 | sigfillset (&full); |
|
|
1874 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
1875 | #endif |
|
|
1876 | |
|
|
1877 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1878 | |
|
|
1879 | #ifndef _WIN32 |
|
|
1880 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
1881 | #endif |
|
|
1882 | } |
|
|
1883 | |
1619 | ev_start (EV_A_ (W)w, 1); |
1884 | ev_start (EV_A_ (W)w, 1); |
1620 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1621 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1885 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
1622 | |
1886 | |
1623 | if (!((WL)w)->next) |
1887 | if (!((WL)w)->next) |
1624 | { |
1888 | { |
1625 | #if _WIN32 |
1889 | #if _WIN32 |
1626 | signal (w->signum, sighandler); |
1890 | signal (w->signum, sighandler); |
… | |
… | |
1632 | sigaction (w->signum, &sa, 0); |
1896 | sigaction (w->signum, &sa, 0); |
1633 | #endif |
1897 | #endif |
1634 | } |
1898 | } |
1635 | } |
1899 | } |
1636 | |
1900 | |
1637 | void |
1901 | void noinline |
1638 | ev_signal_stop (EV_P_ struct ev_signal *w) |
1902 | ev_signal_stop (EV_P_ ev_signal *w) |
1639 | { |
1903 | { |
1640 | ev_clear_pending (EV_A_ (W)w); |
1904 | clear_pending (EV_A_ (W)w); |
1641 | if (expect_false (!ev_is_active (w))) |
1905 | if (expect_false (!ev_is_active (w))) |
1642 | return; |
1906 | return; |
1643 | |
1907 | |
1644 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1908 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
1645 | ev_stop (EV_A_ (W)w); |
1909 | ev_stop (EV_A_ (W)w); |
1646 | |
1910 | |
1647 | if (!signals [w->signum - 1].head) |
1911 | if (!signals [w->signum - 1].head) |
1648 | signal (w->signum, SIG_DFL); |
1912 | signal (w->signum, SIG_DFL); |
1649 | } |
1913 | } |
1650 | |
1914 | |
1651 | void |
1915 | void |
1652 | ev_child_start (EV_P_ struct ev_child *w) |
1916 | ev_child_start (EV_P_ ev_child *w) |
1653 | { |
1917 | { |
1654 | #if EV_MULTIPLICITY |
1918 | #if EV_MULTIPLICITY |
1655 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1919 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1656 | #endif |
1920 | #endif |
1657 | if (expect_false (ev_is_active (w))) |
1921 | if (expect_false (ev_is_active (w))) |
1658 | return; |
1922 | return; |
1659 | |
1923 | |
1660 | ev_start (EV_A_ (W)w, 1); |
1924 | ev_start (EV_A_ (W)w, 1); |
1661 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1925 | wlist_add (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1662 | } |
1926 | } |
1663 | |
1927 | |
1664 | void |
1928 | void |
1665 | ev_child_stop (EV_P_ struct ev_child *w) |
1929 | ev_child_stop (EV_P_ ev_child *w) |
1666 | { |
1930 | { |
1667 | ev_clear_pending (EV_A_ (W)w); |
1931 | clear_pending (EV_A_ (W)w); |
1668 | if (expect_false (!ev_is_active (w))) |
1932 | if (expect_false (!ev_is_active (w))) |
1669 | return; |
1933 | return; |
1670 | |
1934 | |
1671 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1935 | wlist_del (&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1672 | ev_stop (EV_A_ (W)w); |
1936 | ev_stop (EV_A_ (W)w); |
1673 | } |
1937 | } |
1674 | |
1938 | |
1675 | #if EV_MULTIPLICITY |
1939 | #if EV_STAT_ENABLE |
|
|
1940 | |
|
|
1941 | # ifdef _WIN32 |
|
|
1942 | # undef lstat |
|
|
1943 | # define lstat(a,b) _stati64 (a,b) |
|
|
1944 | # endif |
|
|
1945 | |
|
|
1946 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
1947 | #define MIN_STAT_INTERVAL 0.1074891 |
|
|
1948 | |
|
|
1949 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
|
|
1950 | |
|
|
1951 | #if EV_USE_INOTIFY |
|
|
1952 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
1953 | |
|
|
1954 | static void noinline |
|
|
1955 | infy_add (EV_P_ ev_stat *w) |
|
|
1956 | { |
|
|
1957 | 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); |
|
|
1958 | |
|
|
1959 | if (w->wd < 0) |
|
|
1960 | { |
|
|
1961 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
1962 | |
|
|
1963 | /* monitor some parent directory for speedup hints */ |
|
|
1964 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
|
|
1965 | { |
|
|
1966 | char path [4096]; |
|
|
1967 | strcpy (path, w->path); |
|
|
1968 | |
|
|
1969 | do |
|
|
1970 | { |
|
|
1971 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
|
|
1972 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
|
|
1973 | |
|
|
1974 | char *pend = strrchr (path, '/'); |
|
|
1975 | |
|
|
1976 | if (!pend) |
|
|
1977 | break; /* whoops, no '/', complain to your admin */ |
|
|
1978 | |
|
|
1979 | *pend = 0; |
|
|
1980 | w->wd = inotify_add_watch (fs_fd, path, mask); |
|
|
1981 | } |
|
|
1982 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
|
|
1983 | } |
|
|
1984 | } |
|
|
1985 | else |
|
|
1986 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
1987 | |
|
|
1988 | if (w->wd >= 0) |
|
|
1989 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
1990 | } |
|
|
1991 | |
|
|
1992 | static void noinline |
|
|
1993 | infy_del (EV_P_ ev_stat *w) |
|
|
1994 | { |
|
|
1995 | int slot; |
|
|
1996 | int wd = w->wd; |
|
|
1997 | |
|
|
1998 | if (wd < 0) |
|
|
1999 | return; |
|
|
2000 | |
|
|
2001 | w->wd = -2; |
|
|
2002 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
|
|
2003 | wlist_del (&fs_hash [slot].head, (WL)w); |
|
|
2004 | |
|
|
2005 | /* remove this watcher, if others are watching it, they will rearm */ |
|
|
2006 | inotify_rm_watch (fs_fd, wd); |
|
|
2007 | } |
|
|
2008 | |
|
|
2009 | static void noinline |
|
|
2010 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
|
|
2011 | { |
|
|
2012 | if (slot < 0) |
|
|
2013 | /* overflow, need to check for all hahs slots */ |
|
|
2014 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2015 | infy_wd (EV_A_ slot, wd, ev); |
|
|
2016 | else |
|
|
2017 | { |
|
|
2018 | WL w_; |
|
|
2019 | |
|
|
2020 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
|
|
2021 | { |
|
|
2022 | ev_stat *w = (ev_stat *)w_; |
|
|
2023 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
|
|
2024 | |
|
|
2025 | if (w->wd == wd || wd == -1) |
|
|
2026 | { |
|
|
2027 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
|
|
2028 | { |
|
|
2029 | w->wd = -1; |
|
|
2030 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2031 | } |
|
|
2032 | |
|
|
2033 | stat_timer_cb (EV_A_ &w->timer, 0); |
|
|
2034 | } |
|
|
2035 | } |
|
|
2036 | } |
|
|
2037 | } |
|
|
2038 | |
1676 | static void |
2039 | static void |
1677 | embed_cb (EV_P_ struct ev_io *io, int revents) |
2040 | infy_cb (EV_P_ ev_io *w, int revents) |
1678 | { |
2041 | { |
1679 | struct ev_embed *w = (struct ev_embed *)(((char *)io) - offsetof (struct ev_embed, io)); |
2042 | char buf [EV_INOTIFY_BUFSIZE]; |
|
|
2043 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2044 | int ofs; |
|
|
2045 | int len = read (fs_fd, buf, sizeof (buf)); |
1680 | |
2046 | |
|
|
2047 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
|
|
2048 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
2049 | } |
|
|
2050 | |
|
|
2051 | void inline_size |
|
|
2052 | infy_init (EV_P) |
|
|
2053 | { |
|
|
2054 | if (fs_fd != -2) |
|
|
2055 | return; |
|
|
2056 | |
|
|
2057 | fs_fd = inotify_init (); |
|
|
2058 | |
|
|
2059 | if (fs_fd >= 0) |
|
|
2060 | { |
|
|
2061 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
|
|
2062 | ev_set_priority (&fs_w, EV_MAXPRI); |
|
|
2063 | ev_io_start (EV_A_ &fs_w); |
|
|
2064 | } |
|
|
2065 | } |
|
|
2066 | |
|
|
2067 | void inline_size |
|
|
2068 | infy_fork (EV_P) |
|
|
2069 | { |
|
|
2070 | int slot; |
|
|
2071 | |
|
|
2072 | if (fs_fd < 0) |
|
|
2073 | return; |
|
|
2074 | |
|
|
2075 | close (fs_fd); |
|
|
2076 | fs_fd = inotify_init (); |
|
|
2077 | |
|
|
2078 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
2079 | { |
|
|
2080 | WL w_ = fs_hash [slot].head; |
|
|
2081 | fs_hash [slot].head = 0; |
|
|
2082 | |
|
|
2083 | while (w_) |
|
|
2084 | { |
|
|
2085 | ev_stat *w = (ev_stat *)w_; |
|
|
2086 | w_ = w_->next; /* lets us add this watcher */ |
|
|
2087 | |
|
|
2088 | w->wd = -1; |
|
|
2089 | |
|
|
2090 | if (fs_fd >= 0) |
|
|
2091 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
2092 | else |
|
|
2093 | ev_timer_start (EV_A_ &w->timer); |
|
|
2094 | } |
|
|
2095 | |
|
|
2096 | } |
|
|
2097 | } |
|
|
2098 | |
|
|
2099 | #endif |
|
|
2100 | |
|
|
2101 | void |
|
|
2102 | ev_stat_stat (EV_P_ ev_stat *w) |
|
|
2103 | { |
|
|
2104 | if (lstat (w->path, &w->attr) < 0) |
|
|
2105 | w->attr.st_nlink = 0; |
|
|
2106 | else if (!w->attr.st_nlink) |
|
|
2107 | w->attr.st_nlink = 1; |
|
|
2108 | } |
|
|
2109 | |
|
|
2110 | static void noinline |
|
|
2111 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
2112 | { |
|
|
2113 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
2114 | |
|
|
2115 | /* we copy this here each the time so that */ |
|
|
2116 | /* prev has the old value when the callback gets invoked */ |
|
|
2117 | w->prev = w->attr; |
|
|
2118 | ev_stat_stat (EV_A_ w); |
|
|
2119 | |
|
|
2120 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
|
|
2121 | if ( |
|
|
2122 | w->prev.st_dev != w->attr.st_dev |
|
|
2123 | || w->prev.st_ino != w->attr.st_ino |
|
|
2124 | || w->prev.st_mode != w->attr.st_mode |
|
|
2125 | || w->prev.st_nlink != w->attr.st_nlink |
|
|
2126 | || w->prev.st_uid != w->attr.st_uid |
|
|
2127 | || w->prev.st_gid != w->attr.st_gid |
|
|
2128 | || w->prev.st_rdev != w->attr.st_rdev |
|
|
2129 | || w->prev.st_size != w->attr.st_size |
|
|
2130 | || w->prev.st_atime != w->attr.st_atime |
|
|
2131 | || w->prev.st_mtime != w->attr.st_mtime |
|
|
2132 | || w->prev.st_ctime != w->attr.st_ctime |
|
|
2133 | ) { |
|
|
2134 | #if EV_USE_INOTIFY |
|
|
2135 | infy_del (EV_A_ w); |
|
|
2136 | infy_add (EV_A_ w); |
|
|
2137 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2138 | #endif |
|
|
2139 | |
1681 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
2140 | ev_feed_event (EV_A_ w, EV_STAT); |
1682 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
2141 | } |
1683 | } |
2142 | } |
1684 | |
2143 | |
1685 | void |
2144 | void |
1686 | ev_embed_start (EV_P_ struct ev_embed *w) |
2145 | ev_stat_start (EV_P_ ev_stat *w) |
1687 | { |
2146 | { |
1688 | if (expect_false (ev_is_active (w))) |
2147 | if (expect_false (ev_is_active (w))) |
1689 | return; |
2148 | return; |
1690 | |
2149 | |
|
|
2150 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2151 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2152 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2153 | |
|
|
2154 | ev_stat_stat (EV_A_ w); |
|
|
2155 | |
|
|
2156 | if (w->interval < MIN_STAT_INTERVAL) |
|
|
2157 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2158 | |
|
|
2159 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
|
|
2160 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
2161 | |
|
|
2162 | #if EV_USE_INOTIFY |
|
|
2163 | infy_init (EV_A); |
|
|
2164 | |
|
|
2165 | if (fs_fd >= 0) |
|
|
2166 | infy_add (EV_A_ w); |
|
|
2167 | else |
|
|
2168 | #endif |
|
|
2169 | ev_timer_start (EV_A_ &w->timer); |
|
|
2170 | |
|
|
2171 | ev_start (EV_A_ (W)w, 1); |
|
|
2172 | } |
|
|
2173 | |
|
|
2174 | void |
|
|
2175 | ev_stat_stop (EV_P_ ev_stat *w) |
|
|
2176 | { |
|
|
2177 | clear_pending (EV_A_ (W)w); |
|
|
2178 | if (expect_false (!ev_is_active (w))) |
|
|
2179 | return; |
|
|
2180 | |
|
|
2181 | #if EV_USE_INOTIFY |
|
|
2182 | infy_del (EV_A_ w); |
|
|
2183 | #endif |
|
|
2184 | ev_timer_stop (EV_A_ &w->timer); |
|
|
2185 | |
|
|
2186 | ev_stop (EV_A_ (W)w); |
|
|
2187 | } |
|
|
2188 | #endif |
|
|
2189 | |
|
|
2190 | #if EV_IDLE_ENABLE |
|
|
2191 | void |
|
|
2192 | ev_idle_start (EV_P_ ev_idle *w) |
|
|
2193 | { |
|
|
2194 | if (expect_false (ev_is_active (w))) |
|
|
2195 | return; |
|
|
2196 | |
|
|
2197 | pri_adjust (EV_A_ (W)w); |
|
|
2198 | |
1691 | { |
2199 | { |
|
|
2200 | int active = ++idlecnt [ABSPRI (w)]; |
|
|
2201 | |
|
|
2202 | ++idleall; |
|
|
2203 | ev_start (EV_A_ (W)w, active); |
|
|
2204 | |
|
|
2205 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
|
|
2206 | idles [ABSPRI (w)][active - 1] = w; |
|
|
2207 | } |
|
|
2208 | } |
|
|
2209 | |
|
|
2210 | void |
|
|
2211 | ev_idle_stop (EV_P_ ev_idle *w) |
|
|
2212 | { |
|
|
2213 | clear_pending (EV_A_ (W)w); |
|
|
2214 | if (expect_false (!ev_is_active (w))) |
|
|
2215 | return; |
|
|
2216 | |
|
|
2217 | { |
|
|
2218 | int active = ((W)w)->active; |
|
|
2219 | |
|
|
2220 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
|
|
2221 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
|
|
2222 | |
|
|
2223 | ev_stop (EV_A_ (W)w); |
|
|
2224 | --idleall; |
|
|
2225 | } |
|
|
2226 | } |
|
|
2227 | #endif |
|
|
2228 | |
|
|
2229 | void |
|
|
2230 | ev_prepare_start (EV_P_ ev_prepare *w) |
|
|
2231 | { |
|
|
2232 | if (expect_false (ev_is_active (w))) |
|
|
2233 | return; |
|
|
2234 | |
|
|
2235 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
2236 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
|
|
2237 | prepares [preparecnt - 1] = w; |
|
|
2238 | } |
|
|
2239 | |
|
|
2240 | void |
|
|
2241 | ev_prepare_stop (EV_P_ ev_prepare *w) |
|
|
2242 | { |
|
|
2243 | clear_pending (EV_A_ (W)w); |
|
|
2244 | if (expect_false (!ev_is_active (w))) |
|
|
2245 | return; |
|
|
2246 | |
|
|
2247 | { |
|
|
2248 | int active = ((W)w)->active; |
|
|
2249 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
2250 | ((W)prepares [active - 1])->active = active; |
|
|
2251 | } |
|
|
2252 | |
|
|
2253 | ev_stop (EV_A_ (W)w); |
|
|
2254 | } |
|
|
2255 | |
|
|
2256 | void |
|
|
2257 | ev_check_start (EV_P_ ev_check *w) |
|
|
2258 | { |
|
|
2259 | if (expect_false (ev_is_active (w))) |
|
|
2260 | return; |
|
|
2261 | |
|
|
2262 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
2263 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
|
|
2264 | checks [checkcnt - 1] = w; |
|
|
2265 | } |
|
|
2266 | |
|
|
2267 | void |
|
|
2268 | ev_check_stop (EV_P_ ev_check *w) |
|
|
2269 | { |
|
|
2270 | clear_pending (EV_A_ (W)w); |
|
|
2271 | if (expect_false (!ev_is_active (w))) |
|
|
2272 | return; |
|
|
2273 | |
|
|
2274 | { |
|
|
2275 | int active = ((W)w)->active; |
|
|
2276 | checks [active - 1] = checks [--checkcnt]; |
|
|
2277 | ((W)checks [active - 1])->active = active; |
|
|
2278 | } |
|
|
2279 | |
|
|
2280 | ev_stop (EV_A_ (W)w); |
|
|
2281 | } |
|
|
2282 | |
|
|
2283 | #if EV_EMBED_ENABLE |
|
|
2284 | void noinline |
|
|
2285 | ev_embed_sweep (EV_P_ ev_embed *w) |
|
|
2286 | { |
|
|
2287 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2288 | } |
|
|
2289 | |
|
|
2290 | static void |
|
|
2291 | embed_io_cb (EV_P_ ev_io *io, int revents) |
|
|
2292 | { |
|
|
2293 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
|
|
2294 | |
|
|
2295 | if (ev_cb (w)) |
|
|
2296 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
|
|
2297 | else |
|
|
2298 | ev_loop (w->other, EVLOOP_NONBLOCK); |
|
|
2299 | } |
|
|
2300 | |
|
|
2301 | static void |
|
|
2302 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
|
|
2303 | { |
|
|
2304 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
|
|
2305 | |
|
|
2306 | { |
1692 | struct ev_loop *loop = w->loop; |
2307 | struct ev_loop *loop = w->other; |
|
|
2308 | |
|
|
2309 | while (fdchangecnt) |
|
|
2310 | { |
|
|
2311 | fd_reify (EV_A); |
|
|
2312 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
|
|
2313 | } |
|
|
2314 | } |
|
|
2315 | } |
|
|
2316 | |
|
|
2317 | #if 0 |
|
|
2318 | static void |
|
|
2319 | embed_idle_cb (EV_P_ ev_idle *idle, int revents) |
|
|
2320 | { |
|
|
2321 | ev_idle_stop (EV_A_ idle); |
|
|
2322 | } |
|
|
2323 | #endif |
|
|
2324 | |
|
|
2325 | void |
|
|
2326 | ev_embed_start (EV_P_ ev_embed *w) |
|
|
2327 | { |
|
|
2328 | if (expect_false (ev_is_active (w))) |
|
|
2329 | return; |
|
|
2330 | |
|
|
2331 | { |
|
|
2332 | struct ev_loop *loop = w->other; |
1693 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
2333 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
1694 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
2334 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
1695 | } |
2335 | } |
1696 | |
2336 | |
|
|
2337 | ev_set_priority (&w->io, ev_priority (w)); |
1697 | ev_io_start (EV_A_ &w->io); |
2338 | ev_io_start (EV_A_ &w->io); |
|
|
2339 | |
|
|
2340 | ev_prepare_init (&w->prepare, embed_prepare_cb); |
|
|
2341 | ev_set_priority (&w->prepare, EV_MINPRI); |
|
|
2342 | ev_prepare_start (EV_A_ &w->prepare); |
|
|
2343 | |
|
|
2344 | /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ |
|
|
2345 | |
1698 | ev_start (EV_A_ (W)w, 1); |
2346 | ev_start (EV_A_ (W)w, 1); |
1699 | } |
2347 | } |
1700 | |
2348 | |
1701 | void |
2349 | void |
1702 | ev_embed_stop (EV_P_ struct ev_embed *w) |
2350 | ev_embed_stop (EV_P_ ev_embed *w) |
1703 | { |
2351 | { |
1704 | ev_clear_pending (EV_A_ (W)w); |
2352 | clear_pending (EV_A_ (W)w); |
1705 | if (expect_false (!ev_is_active (w))) |
2353 | if (expect_false (!ev_is_active (w))) |
1706 | return; |
2354 | return; |
1707 | |
2355 | |
1708 | ev_io_stop (EV_A_ &w->io); |
2356 | ev_io_stop (EV_A_ &w->io); |
|
|
2357 | ev_prepare_stop (EV_A_ &w->prepare); |
|
|
2358 | |
1709 | ev_stop (EV_A_ (W)w); |
2359 | ev_stop (EV_A_ (W)w); |
1710 | } |
2360 | } |
1711 | #endif |
2361 | #endif |
1712 | |
2362 | |
|
|
2363 | #if EV_FORK_ENABLE |
|
|
2364 | void |
|
|
2365 | ev_fork_start (EV_P_ ev_fork *w) |
|
|
2366 | { |
|
|
2367 | if (expect_false (ev_is_active (w))) |
|
|
2368 | return; |
|
|
2369 | |
|
|
2370 | ev_start (EV_A_ (W)w, ++forkcnt); |
|
|
2371 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
|
|
2372 | forks [forkcnt - 1] = w; |
|
|
2373 | } |
|
|
2374 | |
|
|
2375 | void |
|
|
2376 | ev_fork_stop (EV_P_ ev_fork *w) |
|
|
2377 | { |
|
|
2378 | clear_pending (EV_A_ (W)w); |
|
|
2379 | if (expect_false (!ev_is_active (w))) |
|
|
2380 | return; |
|
|
2381 | |
|
|
2382 | { |
|
|
2383 | int active = ((W)w)->active; |
|
|
2384 | forks [active - 1] = forks [--forkcnt]; |
|
|
2385 | ((W)forks [active - 1])->active = active; |
|
|
2386 | } |
|
|
2387 | |
|
|
2388 | ev_stop (EV_A_ (W)w); |
|
|
2389 | } |
|
|
2390 | #endif |
|
|
2391 | |
1713 | /*****************************************************************************/ |
2392 | /*****************************************************************************/ |
1714 | |
2393 | |
1715 | struct ev_once |
2394 | struct ev_once |
1716 | { |
2395 | { |
1717 | struct ev_io io; |
2396 | ev_io io; |
1718 | struct ev_timer to; |
2397 | ev_timer to; |
1719 | void (*cb)(int revents, void *arg); |
2398 | void (*cb)(int revents, void *arg); |
1720 | void *arg; |
2399 | void *arg; |
1721 | }; |
2400 | }; |
1722 | |
2401 | |
1723 | static void |
2402 | static void |
… | |
… | |
1732 | |
2411 | |
1733 | cb (revents, arg); |
2412 | cb (revents, arg); |
1734 | } |
2413 | } |
1735 | |
2414 | |
1736 | static void |
2415 | static void |
1737 | once_cb_io (EV_P_ struct ev_io *w, int revents) |
2416 | once_cb_io (EV_P_ ev_io *w, int revents) |
1738 | { |
2417 | { |
1739 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
2418 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1740 | } |
2419 | } |
1741 | |
2420 | |
1742 | static void |
2421 | static void |
1743 | once_cb_to (EV_P_ struct ev_timer *w, int revents) |
2422 | once_cb_to (EV_P_ ev_timer *w, int revents) |
1744 | { |
2423 | { |
1745 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
2424 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1746 | } |
2425 | } |
1747 | |
2426 | |
1748 | void |
2427 | void |
… | |
… | |
1772 | ev_timer_set (&once->to, timeout, 0.); |
2451 | ev_timer_set (&once->to, timeout, 0.); |
1773 | ev_timer_start (EV_A_ &once->to); |
2452 | ev_timer_start (EV_A_ &once->to); |
1774 | } |
2453 | } |
1775 | } |
2454 | } |
1776 | |
2455 | |
|
|
2456 | #if EV_MULTIPLICITY |
|
|
2457 | #include "ev_wrap.h" |
|
|
2458 | #endif |
|
|
2459 | |
1777 | #ifdef __cplusplus |
2460 | #ifdef __cplusplus |
1778 | } |
2461 | } |
1779 | #endif |
2462 | #endif |
1780 | |
2463 | |