1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010,2011,2012,2013 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 modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
11 | * this list of conditions and the following disclaimer. |
11 | * this list of conditions and the following disclaimer. |
12 | * |
12 | * |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
14 | * notice, this list of conditions and the following disclaimer in the |
14 | * notice, this list of conditions and the following disclaimer in the |
15 | * documentation and/or other materials provided with the distribution. |
15 | * documentation and/or other materials provided with the distribution. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
… | |
… | |
43 | # include EV_CONFIG_H |
43 | # include EV_CONFIG_H |
44 | # else |
44 | # else |
45 | # include "config.h" |
45 | # include "config.h" |
46 | # endif |
46 | # endif |
47 | |
47 | |
|
|
48 | # if HAVE_FLOOR |
|
|
49 | # ifndef EV_USE_FLOOR |
|
|
50 | # define EV_USE_FLOOR 1 |
|
|
51 | # endif |
|
|
52 | # endif |
|
|
53 | |
48 | # if HAVE_CLOCK_SYSCALL |
54 | # if HAVE_CLOCK_SYSCALL |
49 | # ifndef EV_USE_CLOCK_SYSCALL |
55 | # ifndef EV_USE_CLOCK_SYSCALL |
50 | # define EV_USE_CLOCK_SYSCALL 1 |
56 | # define EV_USE_CLOCK_SYSCALL 1 |
51 | # ifndef EV_USE_REALTIME |
57 | # ifndef EV_USE_REALTIME |
52 | # define EV_USE_REALTIME 0 |
58 | # define EV_USE_REALTIME 0 |
53 | # endif |
59 | # endif |
54 | # ifndef EV_USE_MONOTONIC |
60 | # ifndef EV_USE_MONOTONIC |
55 | # define EV_USE_MONOTONIC 1 |
61 | # define EV_USE_MONOTONIC 1 |
56 | # endif |
62 | # endif |
57 | # endif |
63 | # endif |
58 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
64 | # elif !defined EV_USE_CLOCK_SYSCALL |
59 | # define EV_USE_CLOCK_SYSCALL 0 |
65 | # define EV_USE_CLOCK_SYSCALL 0 |
60 | # endif |
66 | # endif |
61 | |
67 | |
62 | # if HAVE_CLOCK_GETTIME |
68 | # if HAVE_CLOCK_GETTIME |
63 | # ifndef EV_USE_MONOTONIC |
69 | # ifndef EV_USE_MONOTONIC |
… | |
… | |
156 | # define EV_USE_EVENTFD 0 |
162 | # define EV_USE_EVENTFD 0 |
157 | # endif |
163 | # endif |
158 | |
164 | |
159 | #endif |
165 | #endif |
160 | |
166 | |
161 | #include <math.h> |
|
|
162 | #include <stdlib.h> |
167 | #include <stdlib.h> |
163 | #include <string.h> |
168 | #include <string.h> |
164 | #include <fcntl.h> |
169 | #include <fcntl.h> |
165 | #include <stddef.h> |
170 | #include <stddef.h> |
166 | |
171 | |
… | |
… | |
178 | # include EV_H |
183 | # include EV_H |
179 | #else |
184 | #else |
180 | # include "ev.h" |
185 | # include "ev.h" |
181 | #endif |
186 | #endif |
182 | |
187 | |
183 | EV_CPP(extern "C" {) |
188 | #if EV_NO_THREADS |
|
|
189 | # undef EV_NO_SMP |
|
|
190 | # define EV_NO_SMP 1 |
|
|
191 | # undef ECB_NO_THREADS |
|
|
192 | # define ECB_NO_THREADS 1 |
|
|
193 | #endif |
|
|
194 | #if EV_NO_SMP |
|
|
195 | # undef EV_NO_SMP |
|
|
196 | # define ECB_NO_SMP 1 |
|
|
197 | #endif |
184 | |
198 | |
185 | #ifndef _WIN32 |
199 | #ifndef _WIN32 |
186 | # include <sys/time.h> |
200 | # include <sys/time.h> |
187 | # include <sys/wait.h> |
201 | # include <sys/wait.h> |
188 | # include <unistd.h> |
202 | # include <unistd.h> |
189 | #else |
203 | #else |
190 | # include <io.h> |
204 | # include <io.h> |
191 | # define WIN32_LEAN_AND_MEAN |
205 | # define WIN32_LEAN_AND_MEAN |
|
|
206 | # include <winsock2.h> |
192 | # include <windows.h> |
207 | # include <windows.h> |
193 | # ifndef EV_SELECT_IS_WINSOCKET |
208 | # ifndef EV_SELECT_IS_WINSOCKET |
194 | # define EV_SELECT_IS_WINSOCKET 1 |
209 | # define EV_SELECT_IS_WINSOCKET 1 |
195 | # endif |
210 | # endif |
196 | # undef EV_AVOID_STDIO |
211 | # undef EV_AVOID_STDIO |
… | |
… | |
205 | #define _DARWIN_UNLIMITED_SELECT 1 |
220 | #define _DARWIN_UNLIMITED_SELECT 1 |
206 | |
221 | |
207 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
222 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
208 | |
223 | |
209 | /* try to deduce the maximum number of signals on this platform */ |
224 | /* try to deduce the maximum number of signals on this platform */ |
210 | #if defined (EV_NSIG) |
225 | #if defined EV_NSIG |
211 | /* use what's provided */ |
226 | /* use what's provided */ |
212 | #elif defined (NSIG) |
227 | #elif defined NSIG |
213 | # define EV_NSIG (NSIG) |
228 | # define EV_NSIG (NSIG) |
214 | #elif defined(_NSIG) |
229 | #elif defined _NSIG |
215 | # define EV_NSIG (_NSIG) |
230 | # define EV_NSIG (_NSIG) |
216 | #elif defined (SIGMAX) |
231 | #elif defined SIGMAX |
217 | # define EV_NSIG (SIGMAX+1) |
232 | # define EV_NSIG (SIGMAX+1) |
218 | #elif defined (SIG_MAX) |
233 | #elif defined SIG_MAX |
219 | # define EV_NSIG (SIG_MAX+1) |
234 | # define EV_NSIG (SIG_MAX+1) |
220 | #elif defined (_SIG_MAX) |
235 | #elif defined _SIG_MAX |
221 | # define EV_NSIG (_SIG_MAX+1) |
236 | # define EV_NSIG (_SIG_MAX+1) |
222 | #elif defined (MAXSIG) |
237 | #elif defined MAXSIG |
223 | # define EV_NSIG (MAXSIG+1) |
238 | # define EV_NSIG (MAXSIG+1) |
224 | #elif defined (MAX_SIG) |
239 | #elif defined MAX_SIG |
225 | # define EV_NSIG (MAX_SIG+1) |
240 | # define EV_NSIG (MAX_SIG+1) |
226 | #elif defined (SIGARRAYSIZE) |
241 | #elif defined SIGARRAYSIZE |
227 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
242 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
228 | #elif defined (_sys_nsig) |
243 | #elif defined _sys_nsig |
229 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
244 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
230 | #else |
245 | #else |
231 | # error "unable to find value for NSIG, please report" |
246 | # define EV_NSIG (8 * sizeof (sigset_t) + 1) |
232 | /* to make it compile regardless, just remove the above line, */ |
247 | #endif |
233 | /* but consider reporting it, too! :) */ |
248 | |
234 | # define EV_NSIG 65 |
249 | #ifndef EV_USE_FLOOR |
|
|
250 | # define EV_USE_FLOOR 0 |
235 | #endif |
251 | #endif |
236 | |
252 | |
237 | #ifndef EV_USE_CLOCK_SYSCALL |
253 | #ifndef EV_USE_CLOCK_SYSCALL |
238 | # if __linux && __GLIBC__ >= 2 |
254 | # if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17 |
239 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
255 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
240 | # else |
256 | # else |
241 | # define EV_USE_CLOCK_SYSCALL 0 |
257 | # define EV_USE_CLOCK_SYSCALL 0 |
242 | # endif |
258 | # endif |
243 | #endif |
259 | #endif |
244 | |
260 | |
|
|
261 | #if !(_POSIX_TIMERS > 0) |
|
|
262 | # ifndef EV_USE_MONOTONIC |
|
|
263 | # define EV_USE_MONOTONIC 0 |
|
|
264 | # endif |
|
|
265 | # ifndef EV_USE_REALTIME |
|
|
266 | # define EV_USE_REALTIME 0 |
|
|
267 | # endif |
|
|
268 | #endif |
|
|
269 | |
245 | #ifndef EV_USE_MONOTONIC |
270 | #ifndef EV_USE_MONOTONIC |
246 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
271 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
247 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
272 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
248 | # else |
273 | # else |
249 | # define EV_USE_MONOTONIC 0 |
274 | # define EV_USE_MONOTONIC 0 |
250 | # endif |
275 | # endif |
251 | #endif |
276 | #endif |
… | |
… | |
338 | |
363 | |
339 | #ifndef EV_HEAP_CACHE_AT |
364 | #ifndef EV_HEAP_CACHE_AT |
340 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
365 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
341 | #endif |
366 | #endif |
342 | |
367 | |
|
|
368 | #ifdef ANDROID |
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|
369 | /* supposedly, android doesn't typedef fd_mask */ |
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|
370 | # undef EV_USE_SELECT |
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|
371 | # define EV_USE_SELECT 0 |
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|
372 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
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373 | # undef EV_USE_CLOCK_SYSCALL |
|
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374 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
375 | #endif |
|
|
376 | |
|
|
377 | /* aix's poll.h seems to cause lots of trouble */ |
|
|
378 | #ifdef _AIX |
|
|
379 | /* AIX has a completely broken poll.h header */ |
|
|
380 | # undef EV_USE_POLL |
|
|
381 | # define EV_USE_POLL 0 |
|
|
382 | #endif |
|
|
383 | |
343 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
384 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
344 | /* which makes programs even slower. might work on other unices, too. */ |
385 | /* which makes programs even slower. might work on other unices, too. */ |
345 | #if EV_USE_CLOCK_SYSCALL |
386 | #if EV_USE_CLOCK_SYSCALL |
346 | # include <syscall.h> |
387 | # include <sys/syscall.h> |
347 | # ifdef SYS_clock_gettime |
388 | # ifdef SYS_clock_gettime |
348 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
389 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
349 | # undef EV_USE_MONOTONIC |
390 | # undef EV_USE_MONOTONIC |
350 | # define EV_USE_MONOTONIC 1 |
391 | # define EV_USE_MONOTONIC 1 |
351 | # else |
392 | # else |
… | |
… | |
354 | # endif |
395 | # endif |
355 | #endif |
396 | #endif |
356 | |
397 | |
357 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
398 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
358 | |
399 | |
359 | #ifdef _AIX |
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|
360 | /* AIX has a completely broken poll.h header */ |
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361 | # undef EV_USE_POLL |
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|
362 | # define EV_USE_POLL 0 |
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363 | #endif |
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364 | |
|
|
365 | #ifndef CLOCK_MONOTONIC |
400 | #ifndef CLOCK_MONOTONIC |
366 | # undef EV_USE_MONOTONIC |
401 | # undef EV_USE_MONOTONIC |
367 | # define EV_USE_MONOTONIC 0 |
402 | # define EV_USE_MONOTONIC 0 |
368 | #endif |
403 | #endif |
369 | |
404 | |
… | |
… | |
376 | # undef EV_USE_INOTIFY |
411 | # undef EV_USE_INOTIFY |
377 | # define EV_USE_INOTIFY 0 |
412 | # define EV_USE_INOTIFY 0 |
378 | #endif |
413 | #endif |
379 | |
414 | |
380 | #if !EV_USE_NANOSLEEP |
415 | #if !EV_USE_NANOSLEEP |
381 | # ifndef _WIN32 |
416 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
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417 | # if !defined _WIN32 && !defined __hpux |
382 | # include <sys/select.h> |
418 | # include <sys/select.h> |
383 | # endif |
419 | # endif |
384 | #endif |
420 | #endif |
385 | |
421 | |
386 | #if EV_USE_INOTIFY |
422 | #if EV_USE_INOTIFY |
… | |
… | |
389 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
425 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
390 | # ifndef IN_DONT_FOLLOW |
426 | # ifndef IN_DONT_FOLLOW |
391 | # undef EV_USE_INOTIFY |
427 | # undef EV_USE_INOTIFY |
392 | # define EV_USE_INOTIFY 0 |
428 | # define EV_USE_INOTIFY 0 |
393 | # endif |
429 | # endif |
394 | #endif |
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395 | |
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396 | #if EV_SELECT_IS_WINSOCKET |
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397 | # include <winsock.h> |
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398 | #endif |
430 | #endif |
399 | |
431 | |
400 | #if EV_USE_EVENTFD |
432 | #if EV_USE_EVENTFD |
401 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
433 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
402 | # include <stdint.h> |
434 | # include <stdint.h> |
… | |
… | |
442 | #else |
474 | #else |
443 | # define EV_FREQUENT_CHECK do { } while (0) |
475 | # define EV_FREQUENT_CHECK do { } while (0) |
444 | #endif |
476 | #endif |
445 | |
477 | |
446 | /* |
478 | /* |
447 | * This is used to avoid floating point rounding problems. |
479 | * This is used to work around floating point rounding problems. |
448 | * It is added to ev_rt_now when scheduling periodics |
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449 | * to ensure progress, time-wise, even when rounding |
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450 | * errors are against us. |
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451 | * This value is good at least till the year 4000. |
480 | * This value is good at least till the year 4000. |
452 | * Better solutions welcome. |
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453 | */ |
481 | */ |
454 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
482 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
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483 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
455 | |
484 | |
456 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
485 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
457 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
486 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
458 | |
487 | |
459 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
488 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
460 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
489 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
461 | |
490 | |
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491 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
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492 | /* ECB.H BEGIN */ |
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493 | /* |
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494 | * libecb - http://software.schmorp.de/pkg/libecb |
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495 | * |
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496 | * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de> |
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497 | * Copyright (©) 2011 Emanuele Giaquinta |
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498 | * All rights reserved. |
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499 | * |
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500 | * Redistribution and use in source and binary forms, with or without modifica- |
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501 | * tion, are permitted provided that the following conditions are met: |
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502 | * |
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503 | * 1. Redistributions of source code must retain the above copyright notice, |
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504 | * this list of conditions and the following disclaimer. |
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505 | * |
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506 | * 2. Redistributions in binary form must reproduce the above copyright |
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507 | * notice, this list of conditions and the following disclaimer in the |
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508 | * documentation and/or other materials provided with the distribution. |
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509 | * |
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510 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
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511 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
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512 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
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513 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
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514 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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515 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
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516 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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517 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
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518 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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519 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
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520 | * |
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521 | * Alternatively, the contents of this file may be used under the terms of |
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522 | * the GNU General Public License ("GPL") version 2 or any later version, |
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523 | * in which case the provisions of the GPL are applicable instead of |
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524 | * the above. If you wish to allow the use of your version of this file |
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525 | * only under the terms of the GPL and not to allow others to use your |
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526 | * version of this file under the BSD license, indicate your decision |
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527 | * by deleting the provisions above and replace them with the notice |
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528 | * and other provisions required by the GPL. If you do not delete the |
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529 | * provisions above, a recipient may use your version of this file under |
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530 | * either the BSD or the GPL. |
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531 | */ |
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532 | |
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533 | #ifndef ECB_H |
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534 | #define ECB_H |
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535 | |
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536 | /* 16 bits major, 16 bits minor */ |
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537 | #define ECB_VERSION 0x00010004 |
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538 | |
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539 | #ifdef _WIN32 |
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540 | typedef signed char int8_t; |
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541 | typedef unsigned char uint8_t; |
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542 | typedef signed short int16_t; |
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543 | typedef unsigned short uint16_t; |
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544 | typedef signed int int32_t; |
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545 | typedef unsigned int uint32_t; |
462 | #if __GNUC__ >= 4 |
546 | #if __GNUC__ |
463 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
547 | typedef signed long long int64_t; |
464 | # define noinline __attribute__ ((noinline)) |
548 | typedef unsigned long long uint64_t; |
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549 | #else /* _MSC_VER || __BORLANDC__ */ |
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550 | typedef signed __int64 int64_t; |
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551 | typedef unsigned __int64 uint64_t; |
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552 | #endif |
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553 | #ifdef _WIN64 |
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554 | #define ECB_PTRSIZE 8 |
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555 | typedef uint64_t uintptr_t; |
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556 | typedef int64_t intptr_t; |
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557 | #else |
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558 | #define ECB_PTRSIZE 4 |
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559 | typedef uint32_t uintptr_t; |
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560 | typedef int32_t intptr_t; |
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561 | #endif |
465 | #else |
562 | #else |
466 | # define expect(expr,value) (expr) |
563 | #include <inttypes.h> |
467 | # define noinline |
564 | #if UINTMAX_MAX > 0xffffffffU |
468 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
565 | #define ECB_PTRSIZE 8 |
469 | # define inline |
566 | #else |
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567 | #define ECB_PTRSIZE 4 |
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568 | #endif |
470 | # endif |
569 | #endif |
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570 | |
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571 | #define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__) |
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572 | #define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64) |
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573 | |
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574 | /* work around x32 idiocy by defining proper macros */ |
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575 | #if ECB_GCC_AMD64 || ECB_MSVC_AMD64 |
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576 | #if _ILP32 |
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577 | #define ECB_AMD64_X32 1 |
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578 | #else |
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579 | #define ECB_AMD64 1 |
471 | #endif |
580 | #endif |
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581 | #endif |
472 | |
582 | |
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583 | /* many compilers define _GNUC_ to some versions but then only implement |
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584 | * what their idiot authors think are the "more important" extensions, |
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585 | * causing enormous grief in return for some better fake benchmark numbers. |
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586 | * or so. |
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587 | * we try to detect these and simply assume they are not gcc - if they have |
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588 | * an issue with that they should have done it right in the first place. |
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589 | */ |
|
|
590 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
|
|
591 | #define ECB_GCC_VERSION(major,minor) 0 |
|
|
592 | #else |
|
|
593 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
|
|
594 | #endif |
|
|
595 | |
|
|
596 | #define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor))) |
|
|
597 | |
|
|
598 | #if __clang__ && defined __has_builtin |
|
|
599 | #define ECB_CLANG_BUILTIN(x) __has_builtin (x) |
|
|
600 | #else |
|
|
601 | #define ECB_CLANG_BUILTIN(x) 0 |
|
|
602 | #endif |
|
|
603 | |
|
|
604 | #if __clang__ && defined __has_extension |
|
|
605 | #define ECB_CLANG_EXTENSION(x) __has_extension (x) |
|
|
606 | #else |
|
|
607 | #define ECB_CLANG_EXTENSION(x) 0 |
|
|
608 | #endif |
|
|
609 | |
|
|
610 | #define ECB_CPP (__cplusplus+0) |
|
|
611 | #define ECB_CPP11 (__cplusplus >= 201103L) |
|
|
612 | |
|
|
613 | #if ECB_CPP |
|
|
614 | #define ECB_C 0 |
|
|
615 | #define ECB_STDC_VERSION 0 |
|
|
616 | #else |
|
|
617 | #define ECB_C 1 |
|
|
618 | #define ECB_STDC_VERSION __STDC_VERSION__ |
|
|
619 | #endif |
|
|
620 | |
|
|
621 | #define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
|
|
622 | #define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
|
|
623 | |
|
|
624 | #if ECB_CPP |
|
|
625 | #define ECB_EXTERN_C extern "C" |
|
|
626 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
|
|
627 | #define ECB_EXTERN_C_END } |
|
|
628 | #else |
|
|
629 | #define ECB_EXTERN_C extern |
|
|
630 | #define ECB_EXTERN_C_BEG |
|
|
631 | #define ECB_EXTERN_C_END |
|
|
632 | #endif |
|
|
633 | |
|
|
634 | /*****************************************************************************/ |
|
|
635 | |
|
|
636 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
|
|
637 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
|
|
638 | |
|
|
639 | #if ECB_NO_THREADS |
|
|
640 | #define ECB_NO_SMP 1 |
|
|
641 | #endif |
|
|
642 | |
|
|
643 | #if ECB_NO_SMP |
|
|
644 | #define ECB_MEMORY_FENCE do { } while (0) |
|
|
645 | #endif |
|
|
646 | |
|
|
647 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */ |
|
|
648 | #if __xlC__ && ECB_CPP |
|
|
649 | #include <builtins.h> |
|
|
650 | #endif |
|
|
651 | |
|
|
652 | #ifndef ECB_MEMORY_FENCE |
|
|
653 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
654 | #if __i386 || __i386__ |
|
|
655 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
|
|
656 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
657 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
658 | #elif ECB_GCC_AMD64 |
|
|
659 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
|
|
660 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
661 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
662 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
|
|
663 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
664 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
|
|
665 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
|
|
666 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
|
|
667 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
|
|
668 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
|
|
669 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
|
|
670 | #elif __aarch64__ |
|
|
671 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
|
|
672 | #elif (__sparc || __sparc__) && !__sparcv8 |
|
|
673 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
|
|
674 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
|
|
675 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
|
|
676 | #elif defined __s390__ || defined __s390x__ |
|
|
677 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
|
|
678 | #elif defined __mips__ |
|
|
679 | /* GNU/Linux emulates sync on mips1 architectures, so we force its use */ |
|
|
680 | /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ |
|
|
681 | #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") |
|
|
682 | #elif defined __alpha__ |
|
|
683 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
|
|
684 | #elif defined __hppa__ |
|
|
685 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
686 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
687 | #elif defined __ia64__ |
|
|
688 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
|
|
689 | #elif defined __m68k__ |
|
|
690 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
691 | #elif defined __m88k__ |
|
|
692 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory") |
|
|
693 | #elif defined __sh__ |
|
|
694 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
695 | #endif |
|
|
696 | #endif |
|
|
697 | #endif |
|
|
698 | |
|
|
699 | #ifndef ECB_MEMORY_FENCE |
|
|
700 | #if ECB_GCC_VERSION(4,7) |
|
|
701 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
702 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
703 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
704 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
705 | |
|
|
706 | #elif ECB_CLANG_EXTENSION(c_atomic) |
|
|
707 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
708 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
709 | #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
710 | #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
711 | |
|
|
712 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
|
|
713 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
714 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
|
|
715 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
|
|
716 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
717 | #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier() |
|
|
718 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
719 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier() |
|
|
720 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
721 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
722 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
723 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
724 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
725 | #elif defined _WIN32 |
|
|
726 | #include <WinNT.h> |
|
|
727 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
728 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
729 | #include <mbarrier.h> |
|
|
730 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
|
|
731 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
|
|
732 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
|
|
733 | #elif __xlC__ |
|
|
734 | #define ECB_MEMORY_FENCE __sync () |
|
|
735 | #endif |
|
|
736 | #endif |
|
|
737 | |
|
|
738 | #ifndef ECB_MEMORY_FENCE |
|
|
739 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
|
|
740 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
|
|
741 | /* not just C11 atomics and atomic accesses */ |
|
|
742 | #include <stdatomic.h> |
|
|
743 | /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */ |
|
|
744 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
|
|
745 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
|
|
746 | /* for most usages, or gcc and clang have a bug */ |
|
|
747 | /* I *currently* lean towards the latter, and inefficiently implement */ |
|
|
748 | /* all three of ecb's fences as a seq_cst fence */ |
|
|
749 | /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */ |
|
|
750 | /* for all __atomic_thread_fence's except seq_cst */ |
|
|
751 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
752 | #endif |
|
|
753 | #endif |
|
|
754 | |
|
|
755 | #ifndef ECB_MEMORY_FENCE |
|
|
756 | #if !ECB_AVOID_PTHREADS |
|
|
757 | /* |
|
|
758 | * if you get undefined symbol references to pthread_mutex_lock, |
|
|
759 | * or failure to find pthread.h, then you should implement |
|
|
760 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
|
761 | * OR provide pthread.h and link against the posix thread library |
|
|
762 | * of your system. |
|
|
763 | */ |
|
|
764 | #include <pthread.h> |
|
|
765 | #define ECB_NEEDS_PTHREADS 1 |
|
|
766 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
|
|
767 | |
|
|
768 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
769 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
770 | #endif |
|
|
771 | #endif |
|
|
772 | |
|
|
773 | #if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE |
|
|
774 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
775 | #endif |
|
|
776 | |
|
|
777 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
|
|
778 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
779 | #endif |
|
|
780 | |
|
|
781 | /*****************************************************************************/ |
|
|
782 | |
|
|
783 | #if ECB_CPP |
|
|
784 | #define ecb_inline static inline |
|
|
785 | #elif ECB_GCC_VERSION(2,5) |
|
|
786 | #define ecb_inline static __inline__ |
|
|
787 | #elif ECB_C99 |
|
|
788 | #define ecb_inline static inline |
|
|
789 | #else |
|
|
790 | #define ecb_inline static |
|
|
791 | #endif |
|
|
792 | |
|
|
793 | #if ECB_GCC_VERSION(3,3) |
|
|
794 | #define ecb_restrict __restrict__ |
|
|
795 | #elif ECB_C99 |
|
|
796 | #define ecb_restrict restrict |
|
|
797 | #else |
|
|
798 | #define ecb_restrict |
|
|
799 | #endif |
|
|
800 | |
|
|
801 | typedef int ecb_bool; |
|
|
802 | |
|
|
803 | #define ECB_CONCAT_(a, b) a ## b |
|
|
804 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
805 | #define ECB_STRINGIFY_(a) # a |
|
|
806 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
807 | #define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr)) |
|
|
808 | |
|
|
809 | #define ecb_function_ ecb_inline |
|
|
810 | |
|
|
811 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8) |
|
|
812 | #define ecb_attribute(attrlist) __attribute__ (attrlist) |
|
|
813 | #else |
|
|
814 | #define ecb_attribute(attrlist) |
|
|
815 | #endif |
|
|
816 | |
|
|
817 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p) |
|
|
818 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
819 | #else |
|
|
820 | /* possible C11 impl for integral types |
|
|
821 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
|
|
822 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
|
|
823 | |
|
|
824 | #define ecb_is_constant(expr) 0 |
|
|
825 | #endif |
|
|
826 | |
|
|
827 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect) |
|
|
828 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
829 | #else |
|
|
830 | #define ecb_expect(expr,value) (expr) |
|
|
831 | #endif |
|
|
832 | |
|
|
833 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch) |
|
|
834 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
835 | #else |
|
|
836 | #define ecb_prefetch(addr,rw,locality) |
|
|
837 | #endif |
|
|
838 | |
|
|
839 | /* no emulation for ecb_decltype */ |
|
|
840 | #if ECB_CPP11 |
|
|
841 | // older implementations might have problems with decltype(x)::type, work around it |
|
|
842 | template<class T> struct ecb_decltype_t { typedef T type; }; |
|
|
843 | #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type |
|
|
844 | #elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8) |
|
|
845 | #define ecb_decltype(x) __typeof__ (x) |
|
|
846 | #endif |
|
|
847 | |
|
|
848 | #if _MSC_VER >= 1300 |
|
|
849 | #define ecb_deprecated __declspec (deprecated) |
|
|
850 | #else |
|
|
851 | #define ecb_deprecated ecb_attribute ((__deprecated__)) |
|
|
852 | #endif |
|
|
853 | |
|
|
854 | #if _MSC_VER >= 1500 |
|
|
855 | #define ecb_deprecated_message(msg) __declspec (deprecated (msg)) |
|
|
856 | #elif ECB_GCC_VERSION(4,5) |
|
|
857 | #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg)) |
|
|
858 | #else |
|
|
859 | #define ecb_deprecated_message(msg) ecb_deprecated |
|
|
860 | #endif |
|
|
861 | |
|
|
862 | #if _MSC_VER >= 1400 |
|
|
863 | #define ecb_noinline __declspec (noinline) |
|
|
864 | #else |
|
|
865 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
866 | #endif |
|
|
867 | |
|
|
868 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
869 | #define ecb_const ecb_attribute ((__const__)) |
|
|
870 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
871 | |
|
|
872 | #if ECB_C11 || __IBMC_NORETURN |
|
|
873 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */ |
|
|
874 | #define ecb_noreturn _Noreturn |
|
|
875 | #elif ECB_CPP11 |
|
|
876 | #define ecb_noreturn [[noreturn]] |
|
|
877 | #elif _MSC_VER >= 1200 |
|
|
878 | /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */ |
|
|
879 | #define ecb_noreturn __declspec (noreturn) |
|
|
880 | #else |
|
|
881 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
882 | #endif |
|
|
883 | |
|
|
884 | #if ECB_GCC_VERSION(4,3) |
|
|
885 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
886 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
887 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
888 | #else |
|
|
889 | #define ecb_artificial |
|
|
890 | #define ecb_hot |
|
|
891 | #define ecb_cold |
|
|
892 | #endif |
|
|
893 | |
|
|
894 | /* put around conditional expressions if you are very sure that the */ |
|
|
895 | /* expression is mostly true or mostly false. note that these return */ |
|
|
896 | /* booleans, not the expression. */ |
473 | #define expect_false(expr) expect ((expr) != 0, 0) |
897 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
474 | #define expect_true(expr) expect ((expr) != 0, 1) |
898 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
899 | /* for compatibility to the rest of the world */ |
|
|
900 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
901 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
|
|
902 | |
|
|
903 | /* count trailing zero bits and count # of one bits */ |
|
|
904 | #if ECB_GCC_VERSION(3,4) \ |
|
|
905 | || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \ |
|
|
906 | && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \ |
|
|
907 | && ECB_CLANG_BUILTIN(__builtin_popcount)) |
|
|
908 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
909 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
|
|
910 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
911 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
912 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
913 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
914 | /* no popcountll */ |
|
|
915 | #else |
|
|
916 | ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); |
|
|
917 | ecb_function_ ecb_const int |
|
|
918 | ecb_ctz32 (uint32_t x) |
|
|
919 | { |
|
|
920 | int r = 0; |
|
|
921 | |
|
|
922 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
923 | |
|
|
924 | #if ECB_branchless_on_i386 |
|
|
925 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
926 | r += !!(x & 0xcccccccc) << 1; |
|
|
927 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
928 | r += !!(x & 0xff00ff00) << 3; |
|
|
929 | r += !!(x & 0xffff0000) << 4; |
|
|
930 | #else |
|
|
931 | if (x & 0xaaaaaaaa) r += 1; |
|
|
932 | if (x & 0xcccccccc) r += 2; |
|
|
933 | if (x & 0xf0f0f0f0) r += 4; |
|
|
934 | if (x & 0xff00ff00) r += 8; |
|
|
935 | if (x & 0xffff0000) r += 16; |
|
|
936 | #endif |
|
|
937 | |
|
|
938 | return r; |
|
|
939 | } |
|
|
940 | |
|
|
941 | ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); |
|
|
942 | ecb_function_ ecb_const int |
|
|
943 | ecb_ctz64 (uint64_t x) |
|
|
944 | { |
|
|
945 | int shift = x & 0xffffffffU ? 0 : 32; |
|
|
946 | return ecb_ctz32 (x >> shift) + shift; |
|
|
947 | } |
|
|
948 | |
|
|
949 | ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); |
|
|
950 | ecb_function_ ecb_const int |
|
|
951 | ecb_popcount32 (uint32_t x) |
|
|
952 | { |
|
|
953 | x -= (x >> 1) & 0x55555555; |
|
|
954 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
955 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
956 | x *= 0x01010101; |
|
|
957 | |
|
|
958 | return x >> 24; |
|
|
959 | } |
|
|
960 | |
|
|
961 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x); |
|
|
962 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x) |
|
|
963 | { |
|
|
964 | int r = 0; |
|
|
965 | |
|
|
966 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
967 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
968 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
969 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
970 | if (x >> 1) { r += 1; } |
|
|
971 | |
|
|
972 | return r; |
|
|
973 | } |
|
|
974 | |
|
|
975 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x); |
|
|
976 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x) |
|
|
977 | { |
|
|
978 | int r = 0; |
|
|
979 | |
|
|
980 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
981 | |
|
|
982 | return r + ecb_ld32 (x); |
|
|
983 | } |
|
|
984 | #endif |
|
|
985 | |
|
|
986 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x); |
|
|
987 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
|
|
988 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x); |
|
|
989 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
|
|
990 | |
|
|
991 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x); |
|
|
992 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x) |
|
|
993 | { |
|
|
994 | return ( (x * 0x0802U & 0x22110U) |
|
|
995 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
|
|
996 | } |
|
|
997 | |
|
|
998 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x); |
|
|
999 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x) |
|
|
1000 | { |
|
|
1001 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
|
|
1002 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
|
|
1003 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
|
|
1004 | x = ( x >> 8 ) | ( x << 8); |
|
|
1005 | |
|
|
1006 | return x; |
|
|
1007 | } |
|
|
1008 | |
|
|
1009 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x); |
|
|
1010 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x) |
|
|
1011 | { |
|
|
1012 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
|
|
1013 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
|
|
1014 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
|
|
1015 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
|
|
1016 | x = ( x >> 16 ) | ( x << 16); |
|
|
1017 | |
|
|
1018 | return x; |
|
|
1019 | } |
|
|
1020 | |
|
|
1021 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
1022 | /* so for this version we are lazy */ |
|
|
1023 | ecb_function_ ecb_const int ecb_popcount64 (uint64_t x); |
|
|
1024 | ecb_function_ ecb_const int |
|
|
1025 | ecb_popcount64 (uint64_t x) |
|
|
1026 | { |
|
|
1027 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
1028 | } |
|
|
1029 | |
|
|
1030 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count); |
|
|
1031 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count); |
|
|
1032 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count); |
|
|
1033 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count); |
|
|
1034 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count); |
|
|
1035 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count); |
|
|
1036 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count); |
|
|
1037 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count); |
|
|
1038 | |
|
|
1039 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
|
|
1040 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
|
|
1041 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
|
|
1042 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
|
|
1043 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
|
|
1044 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
|
|
1045 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
|
|
1046 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
|
|
1047 | |
|
|
1048 | #if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) |
|
|
1049 | #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16) |
|
|
1050 | #define ecb_bswap16(x) __builtin_bswap16 (x) |
|
|
1051 | #else |
|
|
1052 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
1053 | #endif |
|
|
1054 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
|
|
1055 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
1056 | #elif _MSC_VER |
|
|
1057 | #include <stdlib.h> |
|
|
1058 | #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x))) |
|
|
1059 | #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x))) |
|
|
1060 | #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x))) |
|
|
1061 | #else |
|
|
1062 | ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x); |
|
|
1063 | ecb_function_ ecb_const uint16_t |
|
|
1064 | ecb_bswap16 (uint16_t x) |
|
|
1065 | { |
|
|
1066 | return ecb_rotl16 (x, 8); |
|
|
1067 | } |
|
|
1068 | |
|
|
1069 | ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x); |
|
|
1070 | ecb_function_ ecb_const uint32_t |
|
|
1071 | ecb_bswap32 (uint32_t x) |
|
|
1072 | { |
|
|
1073 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
|
|
1074 | } |
|
|
1075 | |
|
|
1076 | ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x); |
|
|
1077 | ecb_function_ ecb_const uint64_t |
|
|
1078 | ecb_bswap64 (uint64_t x) |
|
|
1079 | { |
|
|
1080 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
|
|
1081 | } |
|
|
1082 | #endif |
|
|
1083 | |
|
|
1084 | #if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable) |
|
|
1085 | #define ecb_unreachable() __builtin_unreachable () |
|
|
1086 | #else |
|
|
1087 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
1088 | ecb_inline ecb_noreturn void ecb_unreachable (void); |
|
|
1089 | ecb_inline ecb_noreturn void ecb_unreachable (void) { } |
|
|
1090 | #endif |
|
|
1091 | |
|
|
1092 | /* try to tell the compiler that some condition is definitely true */ |
|
|
1093 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
|
|
1094 | |
|
|
1095 | ecb_inline ecb_const unsigned char ecb_byteorder_helper (void); |
|
|
1096 | ecb_inline ecb_const unsigned char |
|
|
1097 | ecb_byteorder_helper (void) |
|
|
1098 | { |
|
|
1099 | /* the union code still generates code under pressure in gcc, */ |
|
|
1100 | /* but less than using pointers, and always seems to */ |
|
|
1101 | /* successfully return a constant. */ |
|
|
1102 | /* the reason why we have this horrible preprocessor mess */ |
|
|
1103 | /* is to avoid it in all cases, at least on common architectures */ |
|
|
1104 | /* or when using a recent enough gcc version (>= 4.6) */ |
|
|
1105 | #if ((__i386 || __i386__) && !__VOS__) || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64 |
|
|
1106 | return 0x44; |
|
|
1107 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ |
|
|
1108 | return 0x44; |
|
|
1109 | #elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ |
|
|
1110 | return 0x11; |
|
|
1111 | #else |
|
|
1112 | union |
|
|
1113 | { |
|
|
1114 | uint32_t i; |
|
|
1115 | uint8_t c; |
|
|
1116 | } u = { 0x11223344 }; |
|
|
1117 | return u.c; |
|
|
1118 | #endif |
|
|
1119 | } |
|
|
1120 | |
|
|
1121 | ecb_inline ecb_const ecb_bool ecb_big_endian (void); |
|
|
1122 | ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
|
|
1123 | ecb_inline ecb_const ecb_bool ecb_little_endian (void); |
|
|
1124 | ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
|
|
1125 | |
|
|
1126 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
1127 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
1128 | #else |
|
|
1129 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
1130 | #endif |
|
|
1131 | |
|
|
1132 | #if ECB_CPP |
|
|
1133 | template<typename T> |
|
|
1134 | static inline T ecb_div_rd (T val, T div) |
|
|
1135 | { |
|
|
1136 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
|
|
1137 | } |
|
|
1138 | template<typename T> |
|
|
1139 | static inline T ecb_div_ru (T val, T div) |
|
|
1140 | { |
|
|
1141 | return val < 0 ? - ((-val ) / div) : (val + div - 1) / div; |
|
|
1142 | } |
|
|
1143 | #else |
|
|
1144 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
|
|
1145 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
|
|
1146 | #endif |
|
|
1147 | |
|
|
1148 | #if ecb_cplusplus_does_not_suck |
|
|
1149 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
1150 | template<typename T, int N> |
|
|
1151 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
1152 | { |
|
|
1153 | return N; |
|
|
1154 | } |
|
|
1155 | #else |
|
|
1156 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
1157 | #endif |
|
|
1158 | |
|
|
1159 | /*******************************************************************************/ |
|
|
1160 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
|
|
1161 | |
|
|
1162 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
|
|
1163 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
|
|
1164 | #if 0 \ |
|
|
1165 | || __i386 || __i386__ \ |
|
|
1166 | || ECB_GCC_AMD64 \ |
|
|
1167 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
|
|
1168 | || defined __s390__ || defined __s390x__ \ |
|
|
1169 | || defined __mips__ \ |
|
|
1170 | || defined __alpha__ \ |
|
|
1171 | || defined __hppa__ \ |
|
|
1172 | || defined __ia64__ \ |
|
|
1173 | || defined __m68k__ \ |
|
|
1174 | || defined __m88k__ \ |
|
|
1175 | || defined __sh__ \ |
|
|
1176 | || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ |
|
|
1177 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
|
|
1178 | || defined __aarch64__ |
|
|
1179 | #define ECB_STDFP 1 |
|
|
1180 | #include <string.h> /* for memcpy */ |
|
|
1181 | #else |
|
|
1182 | #define ECB_STDFP 0 |
|
|
1183 | #endif |
|
|
1184 | |
|
|
1185 | #ifndef ECB_NO_LIBM |
|
|
1186 | |
|
|
1187 | #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ |
|
|
1188 | |
|
|
1189 | /* only the oldest of old doesn't have this one. solaris. */ |
|
|
1190 | #ifdef INFINITY |
|
|
1191 | #define ECB_INFINITY INFINITY |
|
|
1192 | #else |
|
|
1193 | #define ECB_INFINITY HUGE_VAL |
|
|
1194 | #endif |
|
|
1195 | |
|
|
1196 | #ifdef NAN |
|
|
1197 | #define ECB_NAN NAN |
|
|
1198 | #else |
|
|
1199 | #define ECB_NAN ECB_INFINITY |
|
|
1200 | #endif |
|
|
1201 | |
|
|
1202 | #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L |
|
|
1203 | #define ecb_ldexpf(x,e) ldexpf ((x), (e)) |
|
|
1204 | #define ecb_frexpf(x,e) frexpf ((x), (e)) |
|
|
1205 | #else |
|
|
1206 | #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e)) |
|
|
1207 | #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e)) |
|
|
1208 | #endif |
|
|
1209 | |
|
|
1210 | /* converts an ieee half/binary16 to a float */ |
|
|
1211 | ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x); |
|
|
1212 | ecb_function_ ecb_const float |
|
|
1213 | ecb_binary16_to_float (uint16_t x) |
|
|
1214 | { |
|
|
1215 | int e = (x >> 10) & 0x1f; |
|
|
1216 | int m = x & 0x3ff; |
|
|
1217 | float r; |
|
|
1218 | |
|
|
1219 | if (!e ) r = ecb_ldexpf (m , -24); |
|
|
1220 | else if (e != 31) r = ecb_ldexpf (m + 0x400, e - 25); |
|
|
1221 | else if (m ) r = ECB_NAN; |
|
|
1222 | else r = ECB_INFINITY; |
|
|
1223 | |
|
|
1224 | return x & 0x8000 ? -r : r; |
|
|
1225 | } |
|
|
1226 | |
|
|
1227 | /* convert a float to ieee single/binary32 */ |
|
|
1228 | ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x); |
|
|
1229 | ecb_function_ ecb_const uint32_t |
|
|
1230 | ecb_float_to_binary32 (float x) |
|
|
1231 | { |
|
|
1232 | uint32_t r; |
|
|
1233 | |
|
|
1234 | #if ECB_STDFP |
|
|
1235 | memcpy (&r, &x, 4); |
|
|
1236 | #else |
|
|
1237 | /* slow emulation, works for anything but -0 */ |
|
|
1238 | uint32_t m; |
|
|
1239 | int e; |
|
|
1240 | |
|
|
1241 | if (x == 0e0f ) return 0x00000000U; |
|
|
1242 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
|
|
1243 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
|
|
1244 | if (x != x ) return 0x7fbfffffU; |
|
|
1245 | |
|
|
1246 | m = ecb_frexpf (x, &e) * 0x1000000U; |
|
|
1247 | |
|
|
1248 | r = m & 0x80000000U; |
|
|
1249 | |
|
|
1250 | if (r) |
|
|
1251 | m = -m; |
|
|
1252 | |
|
|
1253 | if (e <= -126) |
|
|
1254 | { |
|
|
1255 | m &= 0xffffffU; |
|
|
1256 | m >>= (-125 - e); |
|
|
1257 | e = -126; |
|
|
1258 | } |
|
|
1259 | |
|
|
1260 | r |= (e + 126) << 23; |
|
|
1261 | r |= m & 0x7fffffU; |
|
|
1262 | #endif |
|
|
1263 | |
|
|
1264 | return r; |
|
|
1265 | } |
|
|
1266 | |
|
|
1267 | /* converts an ieee single/binary32 to a float */ |
|
|
1268 | ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x); |
|
|
1269 | ecb_function_ ecb_const float |
|
|
1270 | ecb_binary32_to_float (uint32_t x) |
|
|
1271 | { |
|
|
1272 | float r; |
|
|
1273 | |
|
|
1274 | #if ECB_STDFP |
|
|
1275 | memcpy (&r, &x, 4); |
|
|
1276 | #else |
|
|
1277 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1278 | int neg = x >> 31; |
|
|
1279 | int e = (x >> 23) & 0xffU; |
|
|
1280 | |
|
|
1281 | x &= 0x7fffffU; |
|
|
1282 | |
|
|
1283 | if (e) |
|
|
1284 | x |= 0x800000U; |
|
|
1285 | else |
|
|
1286 | e = 1; |
|
|
1287 | |
|
|
1288 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
|
|
1289 | r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126); |
|
|
1290 | |
|
|
1291 | r = neg ? -r : r; |
|
|
1292 | #endif |
|
|
1293 | |
|
|
1294 | return r; |
|
|
1295 | } |
|
|
1296 | |
|
|
1297 | /* convert a double to ieee double/binary64 */ |
|
|
1298 | ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x); |
|
|
1299 | ecb_function_ ecb_const uint64_t |
|
|
1300 | ecb_double_to_binary64 (double x) |
|
|
1301 | { |
|
|
1302 | uint64_t r; |
|
|
1303 | |
|
|
1304 | #if ECB_STDFP |
|
|
1305 | memcpy (&r, &x, 8); |
|
|
1306 | #else |
|
|
1307 | /* slow emulation, works for anything but -0 */ |
|
|
1308 | uint64_t m; |
|
|
1309 | int e; |
|
|
1310 | |
|
|
1311 | if (x == 0e0 ) return 0x0000000000000000U; |
|
|
1312 | if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U; |
|
|
1313 | if (x < -1.79769313486231470e+308) return 0xfff0000000000000U; |
|
|
1314 | if (x != x ) return 0X7ff7ffffffffffffU; |
|
|
1315 | |
|
|
1316 | m = frexp (x, &e) * 0x20000000000000U; |
|
|
1317 | |
|
|
1318 | r = m & 0x8000000000000000;; |
|
|
1319 | |
|
|
1320 | if (r) |
|
|
1321 | m = -m; |
|
|
1322 | |
|
|
1323 | if (e <= -1022) |
|
|
1324 | { |
|
|
1325 | m &= 0x1fffffffffffffU; |
|
|
1326 | m >>= (-1021 - e); |
|
|
1327 | e = -1022; |
|
|
1328 | } |
|
|
1329 | |
|
|
1330 | r |= ((uint64_t)(e + 1022)) << 52; |
|
|
1331 | r |= m & 0xfffffffffffffU; |
|
|
1332 | #endif |
|
|
1333 | |
|
|
1334 | return r; |
|
|
1335 | } |
|
|
1336 | |
|
|
1337 | /* converts an ieee double/binary64 to a double */ |
|
|
1338 | ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x); |
|
|
1339 | ecb_function_ ecb_const double |
|
|
1340 | ecb_binary64_to_double (uint64_t x) |
|
|
1341 | { |
|
|
1342 | double r; |
|
|
1343 | |
|
|
1344 | #if ECB_STDFP |
|
|
1345 | memcpy (&r, &x, 8); |
|
|
1346 | #else |
|
|
1347 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1348 | int neg = x >> 63; |
|
|
1349 | int e = (x >> 52) & 0x7ffU; |
|
|
1350 | |
|
|
1351 | x &= 0xfffffffffffffU; |
|
|
1352 | |
|
|
1353 | if (e) |
|
|
1354 | x |= 0x10000000000000U; |
|
|
1355 | else |
|
|
1356 | e = 1; |
|
|
1357 | |
|
|
1358 | /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */ |
|
|
1359 | r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022); |
|
|
1360 | |
|
|
1361 | r = neg ? -r : r; |
|
|
1362 | #endif |
|
|
1363 | |
|
|
1364 | return r; |
|
|
1365 | } |
|
|
1366 | |
|
|
1367 | #endif |
|
|
1368 | |
|
|
1369 | #endif |
|
|
1370 | |
|
|
1371 | /* ECB.H END */ |
|
|
1372 | |
|
|
1373 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
1374 | /* if your architecture doesn't need memory fences, e.g. because it is |
|
|
1375 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
|
|
1376 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
|
|
1377 | * libev, in which cases the memory fences become nops. |
|
|
1378 | * alternatively, you can remove this #error and link against libpthread, |
|
|
1379 | * which will then provide the memory fences. |
|
|
1380 | */ |
|
|
1381 | # error "memory fences not defined for your architecture, please report" |
|
|
1382 | #endif |
|
|
1383 | |
|
|
1384 | #ifndef ECB_MEMORY_FENCE |
|
|
1385 | # define ECB_MEMORY_FENCE do { } while (0) |
|
|
1386 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
1387 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
1388 | #endif |
|
|
1389 | |
|
|
1390 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
1391 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
1392 | #define noinline ecb_noinline |
|
|
1393 | |
475 | #define inline_size static inline |
1394 | #define inline_size ecb_inline |
476 | |
1395 | |
477 | #if EV_FEATURE_CODE |
1396 | #if EV_FEATURE_CODE |
478 | # define inline_speed static inline |
1397 | # define inline_speed ecb_inline |
479 | #else |
1398 | #else |
480 | # define inline_speed static noinline |
1399 | # define inline_speed static noinline |
481 | #endif |
1400 | #endif |
482 | |
1401 | |
483 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1402 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
… | |
… | |
522 | # include "ev_win32.c" |
1441 | # include "ev_win32.c" |
523 | #endif |
1442 | #endif |
524 | |
1443 | |
525 | /*****************************************************************************/ |
1444 | /*****************************************************************************/ |
526 | |
1445 | |
|
|
1446 | /* define a suitable floor function (only used by periodics atm) */ |
|
|
1447 | |
|
|
1448 | #if EV_USE_FLOOR |
|
|
1449 | # include <math.h> |
|
|
1450 | # define ev_floor(v) floor (v) |
|
|
1451 | #else |
|
|
1452 | |
|
|
1453 | #include <float.h> |
|
|
1454 | |
|
|
1455 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1456 | static ev_tstamp noinline |
|
|
1457 | ev_floor (ev_tstamp v) |
|
|
1458 | { |
|
|
1459 | /* the choice of shift factor is not terribly important */ |
|
|
1460 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
|
|
1461 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
|
|
1462 | #else |
|
|
1463 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
|
|
1464 | #endif |
|
|
1465 | |
|
|
1466 | /* argument too large for an unsigned long? */ |
|
|
1467 | if (expect_false (v >= shift)) |
|
|
1468 | { |
|
|
1469 | ev_tstamp f; |
|
|
1470 | |
|
|
1471 | if (v == v - 1.) |
|
|
1472 | return v; /* very large number */ |
|
|
1473 | |
|
|
1474 | f = shift * ev_floor (v * (1. / shift)); |
|
|
1475 | return f + ev_floor (v - f); |
|
|
1476 | } |
|
|
1477 | |
|
|
1478 | /* special treatment for negative args? */ |
|
|
1479 | if (expect_false (v < 0.)) |
|
|
1480 | { |
|
|
1481 | ev_tstamp f = -ev_floor (-v); |
|
|
1482 | |
|
|
1483 | return f - (f == v ? 0 : 1); |
|
|
1484 | } |
|
|
1485 | |
|
|
1486 | /* fits into an unsigned long */ |
|
|
1487 | return (unsigned long)v; |
|
|
1488 | } |
|
|
1489 | |
|
|
1490 | #endif |
|
|
1491 | |
|
|
1492 | /*****************************************************************************/ |
|
|
1493 | |
527 | #ifdef __linux |
1494 | #ifdef __linux |
528 | # include <sys/utsname.h> |
1495 | # include <sys/utsname.h> |
529 | #endif |
1496 | #endif |
530 | |
1497 | |
531 | static unsigned int noinline |
1498 | static unsigned int noinline ecb_cold |
532 | ev_linux_version (void) |
1499 | ev_linux_version (void) |
533 | { |
1500 | { |
534 | #ifdef __linux |
1501 | #ifdef __linux |
535 | unsigned int v = 0; |
1502 | unsigned int v = 0; |
536 | struct utsname buf; |
1503 | struct utsname buf; |
… | |
… | |
565 | } |
1532 | } |
566 | |
1533 | |
567 | /*****************************************************************************/ |
1534 | /*****************************************************************************/ |
568 | |
1535 | |
569 | #if EV_AVOID_STDIO |
1536 | #if EV_AVOID_STDIO |
570 | static void noinline |
1537 | static void noinline ecb_cold |
571 | ev_printerr (const char *msg) |
1538 | ev_printerr (const char *msg) |
572 | { |
1539 | { |
573 | write (STDERR_FILENO, msg, strlen (msg)); |
1540 | write (STDERR_FILENO, msg, strlen (msg)); |
574 | } |
1541 | } |
575 | #endif |
1542 | #endif |
576 | |
1543 | |
577 | static void (*syserr_cb)(const char *msg); |
1544 | static void (*syserr_cb)(const char *msg) EV_THROW; |
578 | |
1545 | |
579 | void |
1546 | void ecb_cold |
580 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1547 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
581 | { |
1548 | { |
582 | syserr_cb = cb; |
1549 | syserr_cb = cb; |
583 | } |
1550 | } |
584 | |
1551 | |
585 | static void noinline |
1552 | static void noinline ecb_cold |
586 | ev_syserr (const char *msg) |
1553 | ev_syserr (const char *msg) |
587 | { |
1554 | { |
588 | if (!msg) |
1555 | if (!msg) |
589 | msg = "(libev) system error"; |
1556 | msg = "(libev) system error"; |
590 | |
1557 | |
… | |
… | |
603 | abort (); |
1570 | abort (); |
604 | } |
1571 | } |
605 | } |
1572 | } |
606 | |
1573 | |
607 | static void * |
1574 | static void * |
608 | ev_realloc_emul (void *ptr, long size) |
1575 | ev_realloc_emul (void *ptr, long size) EV_THROW |
609 | { |
1576 | { |
610 | #if __GLIBC__ |
|
|
611 | return realloc (ptr, size); |
|
|
612 | #else |
|
|
613 | /* some systems, notably openbsd and darwin, fail to properly |
1577 | /* some systems, notably openbsd and darwin, fail to properly |
614 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1578 | * implement realloc (x, 0) (as required by both ansi c-89 and |
615 | * the single unix specification, so work around them here. |
1579 | * the single unix specification, so work around them here. |
|
|
1580 | * recently, also (at least) fedora and debian started breaking it, |
|
|
1581 | * despite documenting it otherwise. |
616 | */ |
1582 | */ |
617 | |
1583 | |
618 | if (size) |
1584 | if (size) |
619 | return realloc (ptr, size); |
1585 | return realloc (ptr, size); |
620 | |
1586 | |
621 | free (ptr); |
1587 | free (ptr); |
622 | return 0; |
1588 | return 0; |
623 | #endif |
|
|
624 | } |
1589 | } |
625 | |
1590 | |
626 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1591 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
627 | |
1592 | |
628 | void |
1593 | void ecb_cold |
629 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1594 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
630 | { |
1595 | { |
631 | alloc = cb; |
1596 | alloc = cb; |
632 | } |
1597 | } |
633 | |
1598 | |
634 | inline_speed void * |
1599 | inline_speed void * |
… | |
… | |
722 | #undef VAR |
1687 | #undef VAR |
723 | }; |
1688 | }; |
724 | #include "ev_wrap.h" |
1689 | #include "ev_wrap.h" |
725 | |
1690 | |
726 | static struct ev_loop default_loop_struct; |
1691 | static struct ev_loop default_loop_struct; |
727 | struct ev_loop *ev_default_loop_ptr; |
1692 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
728 | |
1693 | |
729 | #else |
1694 | #else |
730 | |
1695 | |
731 | ev_tstamp ev_rt_now; |
1696 | EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ |
732 | #define VAR(name,decl) static decl; |
1697 | #define VAR(name,decl) static decl; |
733 | #include "ev_vars.h" |
1698 | #include "ev_vars.h" |
734 | #undef VAR |
1699 | #undef VAR |
735 | |
1700 | |
736 | static int ev_default_loop_ptr; |
1701 | static int ev_default_loop_ptr; |
… | |
… | |
751 | |
1716 | |
752 | /*****************************************************************************/ |
1717 | /*****************************************************************************/ |
753 | |
1718 | |
754 | #ifndef EV_HAVE_EV_TIME |
1719 | #ifndef EV_HAVE_EV_TIME |
755 | ev_tstamp |
1720 | ev_tstamp |
756 | ev_time (void) |
1721 | ev_time (void) EV_THROW |
757 | { |
1722 | { |
758 | #if EV_USE_REALTIME |
1723 | #if EV_USE_REALTIME |
759 | if (expect_true (have_realtime)) |
1724 | if (expect_true (have_realtime)) |
760 | { |
1725 | { |
761 | struct timespec ts; |
1726 | struct timespec ts; |
… | |
… | |
785 | return ev_time (); |
1750 | return ev_time (); |
786 | } |
1751 | } |
787 | |
1752 | |
788 | #if EV_MULTIPLICITY |
1753 | #if EV_MULTIPLICITY |
789 | ev_tstamp |
1754 | ev_tstamp |
790 | ev_now (EV_P) |
1755 | ev_now (EV_P) EV_THROW |
791 | { |
1756 | { |
792 | return ev_rt_now; |
1757 | return ev_rt_now; |
793 | } |
1758 | } |
794 | #endif |
1759 | #endif |
795 | |
1760 | |
796 | void |
1761 | void |
797 | ev_sleep (ev_tstamp delay) |
1762 | ev_sleep (ev_tstamp delay) EV_THROW |
798 | { |
1763 | { |
799 | if (delay > 0.) |
1764 | if (delay > 0.) |
800 | { |
1765 | { |
801 | #if EV_USE_NANOSLEEP |
1766 | #if EV_USE_NANOSLEEP |
802 | struct timespec ts; |
1767 | struct timespec ts; |
803 | |
1768 | |
804 | EV_TS_SET (ts, delay); |
1769 | EV_TS_SET (ts, delay); |
805 | nanosleep (&ts, 0); |
1770 | nanosleep (&ts, 0); |
806 | #elif defined(_WIN32) |
1771 | #elif defined _WIN32 |
807 | Sleep ((unsigned long)(delay * 1e3)); |
1772 | Sleep ((unsigned long)(delay * 1e3)); |
808 | #else |
1773 | #else |
809 | struct timeval tv; |
1774 | struct timeval tv; |
810 | |
1775 | |
811 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
1776 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
… | |
… | |
830 | |
1795 | |
831 | do |
1796 | do |
832 | ncur <<= 1; |
1797 | ncur <<= 1; |
833 | while (cnt > ncur); |
1798 | while (cnt > ncur); |
834 | |
1799 | |
835 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
1800 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
836 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
1801 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
837 | { |
1802 | { |
838 | ncur *= elem; |
1803 | ncur *= elem; |
839 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
1804 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
840 | ncur = ncur - sizeof (void *) * 4; |
1805 | ncur = ncur - sizeof (void *) * 4; |
… | |
… | |
842 | } |
1807 | } |
843 | |
1808 | |
844 | return ncur; |
1809 | return ncur; |
845 | } |
1810 | } |
846 | |
1811 | |
847 | static noinline void * |
1812 | static void * noinline ecb_cold |
848 | array_realloc (int elem, void *base, int *cur, int cnt) |
1813 | array_realloc (int elem, void *base, int *cur, int cnt) |
849 | { |
1814 | { |
850 | *cur = array_nextsize (elem, *cur, cnt); |
1815 | *cur = array_nextsize (elem, *cur, cnt); |
851 | return ev_realloc (base, elem * *cur); |
1816 | return ev_realloc (base, elem * *cur); |
852 | } |
1817 | } |
… | |
… | |
855 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1820 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
856 | |
1821 | |
857 | #define array_needsize(type,base,cur,cnt,init) \ |
1822 | #define array_needsize(type,base,cur,cnt,init) \ |
858 | if (expect_false ((cnt) > (cur))) \ |
1823 | if (expect_false ((cnt) > (cur))) \ |
859 | { \ |
1824 | { \ |
860 | int ocur_ = (cur); \ |
1825 | int ecb_unused ocur_ = (cur); \ |
861 | (base) = (type *)array_realloc \ |
1826 | (base) = (type *)array_realloc \ |
862 | (sizeof (type), (base), &(cur), (cnt)); \ |
1827 | (sizeof (type), (base), &(cur), (cnt)); \ |
863 | init ((base) + (ocur_), (cur) - ocur_); \ |
1828 | init ((base) + (ocur_), (cur) - ocur_); \ |
864 | } |
1829 | } |
865 | |
1830 | |
… | |
… | |
883 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1848 | pendingcb (EV_P_ ev_prepare *w, int revents) |
884 | { |
1849 | { |
885 | } |
1850 | } |
886 | |
1851 | |
887 | void noinline |
1852 | void noinline |
888 | ev_feed_event (EV_P_ void *w, int revents) |
1853 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
889 | { |
1854 | { |
890 | W w_ = (W)w; |
1855 | W w_ = (W)w; |
891 | int pri = ABSPRI (w_); |
1856 | int pri = ABSPRI (w_); |
892 | |
1857 | |
893 | if (expect_false (w_->pending)) |
1858 | if (expect_false (w_->pending)) |
… | |
… | |
897 | w_->pending = ++pendingcnt [pri]; |
1862 | w_->pending = ++pendingcnt [pri]; |
898 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
1863 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
899 | pendings [pri][w_->pending - 1].w = w_; |
1864 | pendings [pri][w_->pending - 1].w = w_; |
900 | pendings [pri][w_->pending - 1].events = revents; |
1865 | pendings [pri][w_->pending - 1].events = revents; |
901 | } |
1866 | } |
|
|
1867 | |
|
|
1868 | pendingpri = NUMPRI - 1; |
902 | } |
1869 | } |
903 | |
1870 | |
904 | inline_speed void |
1871 | inline_speed void |
905 | feed_reverse (EV_P_ W w) |
1872 | feed_reverse (EV_P_ W w) |
906 | { |
1873 | { |
… | |
… | |
952 | if (expect_true (!anfd->reify)) |
1919 | if (expect_true (!anfd->reify)) |
953 | fd_event_nocheck (EV_A_ fd, revents); |
1920 | fd_event_nocheck (EV_A_ fd, revents); |
954 | } |
1921 | } |
955 | |
1922 | |
956 | void |
1923 | void |
957 | ev_feed_fd_event (EV_P_ int fd, int revents) |
1924 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW |
958 | { |
1925 | { |
959 | if (fd >= 0 && fd < anfdmax) |
1926 | if (fd >= 0 && fd < anfdmax) |
960 | fd_event_nocheck (EV_A_ fd, revents); |
1927 | fd_event_nocheck (EV_A_ fd, revents); |
961 | } |
1928 | } |
962 | |
1929 | |
… | |
… | |
965 | inline_size void |
1932 | inline_size void |
966 | fd_reify (EV_P) |
1933 | fd_reify (EV_P) |
967 | { |
1934 | { |
968 | int i; |
1935 | int i; |
969 | |
1936 | |
|
|
1937 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
1938 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1939 | { |
|
|
1940 | int fd = fdchanges [i]; |
|
|
1941 | ANFD *anfd = anfds + fd; |
|
|
1942 | |
|
|
1943 | if (anfd->reify & EV__IOFDSET && anfd->head) |
|
|
1944 | { |
|
|
1945 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
1946 | |
|
|
1947 | if (handle != anfd->handle) |
|
|
1948 | { |
|
|
1949 | unsigned long arg; |
|
|
1950 | |
|
|
1951 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0)); |
|
|
1952 | |
|
|
1953 | /* handle changed, but fd didn't - we need to do it in two steps */ |
|
|
1954 | backend_modify (EV_A_ fd, anfd->events, 0); |
|
|
1955 | anfd->events = 0; |
|
|
1956 | anfd->handle = handle; |
|
|
1957 | } |
|
|
1958 | } |
|
|
1959 | } |
|
|
1960 | #endif |
|
|
1961 | |
970 | for (i = 0; i < fdchangecnt; ++i) |
1962 | for (i = 0; i < fdchangecnt; ++i) |
971 | { |
1963 | { |
972 | int fd = fdchanges [i]; |
1964 | int fd = fdchanges [i]; |
973 | ANFD *anfd = anfds + fd; |
1965 | ANFD *anfd = anfds + fd; |
974 | ev_io *w; |
1966 | ev_io *w; |
… | |
… | |
976 | unsigned char o_events = anfd->events; |
1968 | unsigned char o_events = anfd->events; |
977 | unsigned char o_reify = anfd->reify; |
1969 | unsigned char o_reify = anfd->reify; |
978 | |
1970 | |
979 | anfd->reify = 0; |
1971 | anfd->reify = 0; |
980 | |
1972 | |
981 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
982 | if (o_reify & EV__IOFDSET) |
|
|
983 | { |
|
|
984 | unsigned long arg; |
|
|
985 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
986 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
|
|
987 | printf ("oi %d %x\n", fd, anfd->handle);//D |
|
|
988 | } |
|
|
989 | #endif |
|
|
990 | |
|
|
991 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
1973 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
992 | { |
1974 | { |
993 | anfd->events = 0; |
1975 | anfd->events = 0; |
994 | |
1976 | |
995 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1977 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
1020 | fdchanges [fdchangecnt - 1] = fd; |
2002 | fdchanges [fdchangecnt - 1] = fd; |
1021 | } |
2003 | } |
1022 | } |
2004 | } |
1023 | |
2005 | |
1024 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
2006 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1025 | inline_speed void |
2007 | inline_speed void ecb_cold |
1026 | fd_kill (EV_P_ int fd) |
2008 | fd_kill (EV_P_ int fd) |
1027 | { |
2009 | { |
1028 | ev_io *w; |
2010 | ev_io *w; |
1029 | |
2011 | |
1030 | while ((w = (ev_io *)anfds [fd].head)) |
2012 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
1033 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
2015 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1034 | } |
2016 | } |
1035 | } |
2017 | } |
1036 | |
2018 | |
1037 | /* check whether the given fd is actually valid, for error recovery */ |
2019 | /* check whether the given fd is actually valid, for error recovery */ |
1038 | inline_size int |
2020 | inline_size int ecb_cold |
1039 | fd_valid (int fd) |
2021 | fd_valid (int fd) |
1040 | { |
2022 | { |
1041 | #ifdef _WIN32 |
2023 | #ifdef _WIN32 |
1042 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
2024 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1043 | #else |
2025 | #else |
1044 | return fcntl (fd, F_GETFD) != -1; |
2026 | return fcntl (fd, F_GETFD) != -1; |
1045 | #endif |
2027 | #endif |
1046 | } |
2028 | } |
1047 | |
2029 | |
1048 | /* called on EBADF to verify fds */ |
2030 | /* called on EBADF to verify fds */ |
1049 | static void noinline |
2031 | static void noinline ecb_cold |
1050 | fd_ebadf (EV_P) |
2032 | fd_ebadf (EV_P) |
1051 | { |
2033 | { |
1052 | int fd; |
2034 | int fd; |
1053 | |
2035 | |
1054 | for (fd = 0; fd < anfdmax; ++fd) |
2036 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1056 | if (!fd_valid (fd) && errno == EBADF) |
2038 | if (!fd_valid (fd) && errno == EBADF) |
1057 | fd_kill (EV_A_ fd); |
2039 | fd_kill (EV_A_ fd); |
1058 | } |
2040 | } |
1059 | |
2041 | |
1060 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
2042 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1061 | static void noinline |
2043 | static void noinline ecb_cold |
1062 | fd_enomem (EV_P) |
2044 | fd_enomem (EV_P) |
1063 | { |
2045 | { |
1064 | int fd; |
2046 | int fd; |
1065 | |
2047 | |
1066 | for (fd = anfdmax; fd--; ) |
2048 | for (fd = anfdmax; fd--; ) |
… | |
… | |
1261 | |
2243 | |
1262 | /*****************************************************************************/ |
2244 | /*****************************************************************************/ |
1263 | |
2245 | |
1264 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2246 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1265 | |
2247 | |
1266 | static void noinline |
2248 | static void noinline ecb_cold |
1267 | evpipe_init (EV_P) |
2249 | evpipe_init (EV_P) |
1268 | { |
2250 | { |
1269 | if (!ev_is_active (&pipe_w)) |
2251 | if (!ev_is_active (&pipe_w)) |
1270 | { |
2252 | { |
|
|
2253 | int fds [2]; |
|
|
2254 | |
1271 | # if EV_USE_EVENTFD |
2255 | # if EV_USE_EVENTFD |
|
|
2256 | fds [0] = -1; |
1272 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
2257 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1273 | if (evfd < 0 && errno == EINVAL) |
2258 | if (fds [1] < 0 && errno == EINVAL) |
1274 | evfd = eventfd (0, 0); |
2259 | fds [1] = eventfd (0, 0); |
1275 | |
2260 | |
1276 | if (evfd >= 0) |
2261 | if (fds [1] < 0) |
|
|
2262 | # endif |
1277 | { |
2263 | { |
|
|
2264 | while (pipe (fds)) |
|
|
2265 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
2266 | |
|
|
2267 | fd_intern (fds [0]); |
|
|
2268 | } |
|
|
2269 | |
1278 | evpipe [0] = -1; |
2270 | evpipe [0] = fds [0]; |
1279 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
2271 | |
1280 | ev_io_set (&pipe_w, evfd, EV_READ); |
2272 | if (evpipe [1] < 0) |
|
|
2273 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
2274 | else |
|
|
2275 | { |
|
|
2276 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
2277 | /* so that evpipe_write can always rely on its value. */ |
|
|
2278 | /* this branch does not do anything sensible on windows, */ |
|
|
2279 | /* so must not be executed on windows */ |
|
|
2280 | |
|
|
2281 | dup2 (fds [1], evpipe [1]); |
|
|
2282 | close (fds [1]); |
|
|
2283 | } |
|
|
2284 | |
|
|
2285 | fd_intern (evpipe [1]); |
|
|
2286 | |
|
|
2287 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
|
|
2288 | ev_io_start (EV_A_ &pipe_w); |
|
|
2289 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
2290 | } |
|
|
2291 | } |
|
|
2292 | |
|
|
2293 | inline_speed void |
|
|
2294 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
2295 | { |
|
|
2296 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
|
|
2297 | |
|
|
2298 | if (expect_true (*flag)) |
|
|
2299 | return; |
|
|
2300 | |
|
|
2301 | *flag = 1; |
|
|
2302 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
2303 | |
|
|
2304 | pipe_write_skipped = 1; |
|
|
2305 | |
|
|
2306 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
2307 | |
|
|
2308 | if (pipe_write_wanted) |
|
|
2309 | { |
|
|
2310 | int old_errno; |
|
|
2311 | |
|
|
2312 | pipe_write_skipped = 0; |
|
|
2313 | ECB_MEMORY_FENCE_RELEASE; |
|
|
2314 | |
|
|
2315 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
2316 | |
|
|
2317 | #if EV_USE_EVENTFD |
|
|
2318 | if (evpipe [0] < 0) |
|
|
2319 | { |
|
|
2320 | uint64_t counter = 1; |
|
|
2321 | write (evpipe [1], &counter, sizeof (uint64_t)); |
1281 | } |
2322 | } |
1282 | else |
2323 | else |
1283 | # endif |
2324 | #endif |
1284 | { |
2325 | { |
1285 | while (pipe (evpipe)) |
2326 | #ifdef _WIN32 |
1286 | ev_syserr ("(libev) error creating signal/async pipe"); |
2327 | WSABUF buf; |
1287 | |
2328 | DWORD sent; |
1288 | fd_intern (evpipe [0]); |
2329 | buf.buf = &buf; |
1289 | fd_intern (evpipe [1]); |
2330 | buf.len = 1; |
1290 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
2331 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
|
|
2332 | #else |
|
|
2333 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
2334 | #endif |
1291 | } |
2335 | } |
1292 | |
|
|
1293 | ev_io_start (EV_A_ &pipe_w); |
|
|
1294 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1295 | } |
|
|
1296 | } |
|
|
1297 | |
|
|
1298 | inline_size void |
|
|
1299 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1300 | { |
|
|
1301 | if (!*flag) |
|
|
1302 | { |
|
|
1303 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1304 | char dummy; |
|
|
1305 | |
|
|
1306 | *flag = 1; |
|
|
1307 | |
|
|
1308 | #if EV_USE_EVENTFD |
|
|
1309 | if (evfd >= 0) |
|
|
1310 | { |
|
|
1311 | uint64_t counter = 1; |
|
|
1312 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1313 | } |
|
|
1314 | else |
|
|
1315 | #endif |
|
|
1316 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1317 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1318 | /* so when you think this write should be a send instead, please find out */ |
|
|
1319 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1320 | /* tell me. thank you. */ |
|
|
1321 | write (evpipe [1], &dummy, 1); |
|
|
1322 | |
2336 | |
1323 | errno = old_errno; |
2337 | errno = old_errno; |
1324 | } |
2338 | } |
1325 | } |
2339 | } |
1326 | |
2340 | |
… | |
… | |
1329 | static void |
2343 | static void |
1330 | pipecb (EV_P_ ev_io *iow, int revents) |
2344 | pipecb (EV_P_ ev_io *iow, int revents) |
1331 | { |
2345 | { |
1332 | int i; |
2346 | int i; |
1333 | |
2347 | |
|
|
2348 | if (revents & EV_READ) |
|
|
2349 | { |
1334 | #if EV_USE_EVENTFD |
2350 | #if EV_USE_EVENTFD |
1335 | if (evfd >= 0) |
2351 | if (evpipe [0] < 0) |
1336 | { |
2352 | { |
1337 | uint64_t counter; |
2353 | uint64_t counter; |
1338 | read (evfd, &counter, sizeof (uint64_t)); |
2354 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1339 | } |
2355 | } |
1340 | else |
2356 | else |
1341 | #endif |
2357 | #endif |
1342 | { |
2358 | { |
1343 | char dummy; |
2359 | char dummy[4]; |
1344 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
2360 | #ifdef _WIN32 |
|
|
2361 | WSABUF buf; |
|
|
2362 | DWORD recvd; |
|
|
2363 | DWORD flags = 0; |
|
|
2364 | buf.buf = dummy; |
|
|
2365 | buf.len = sizeof (dummy); |
|
|
2366 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
|
|
2367 | #else |
1345 | read (evpipe [0], &dummy, 1); |
2368 | read (evpipe [0], &dummy, sizeof (dummy)); |
|
|
2369 | #endif |
|
|
2370 | } |
1346 | } |
2371 | } |
1347 | |
2372 | |
|
|
2373 | pipe_write_skipped = 0; |
|
|
2374 | |
|
|
2375 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
|
|
2376 | |
|
|
2377 | #if EV_SIGNAL_ENABLE |
1348 | if (sig_pending) |
2378 | if (sig_pending) |
1349 | { |
2379 | { |
1350 | sig_pending = 0; |
2380 | sig_pending = 0; |
|
|
2381 | |
|
|
2382 | ECB_MEMORY_FENCE; |
1351 | |
2383 | |
1352 | for (i = EV_NSIG - 1; i--; ) |
2384 | for (i = EV_NSIG - 1; i--; ) |
1353 | if (expect_false (signals [i].pending)) |
2385 | if (expect_false (signals [i].pending)) |
1354 | ev_feed_signal_event (EV_A_ i + 1); |
2386 | ev_feed_signal_event (EV_A_ i + 1); |
1355 | } |
2387 | } |
|
|
2388 | #endif |
1356 | |
2389 | |
1357 | #if EV_ASYNC_ENABLE |
2390 | #if EV_ASYNC_ENABLE |
1358 | if (async_pending) |
2391 | if (async_pending) |
1359 | { |
2392 | { |
1360 | async_pending = 0; |
2393 | async_pending = 0; |
|
|
2394 | |
|
|
2395 | ECB_MEMORY_FENCE; |
1361 | |
2396 | |
1362 | for (i = asynccnt; i--; ) |
2397 | for (i = asynccnt; i--; ) |
1363 | if (asyncs [i]->sent) |
2398 | if (asyncs [i]->sent) |
1364 | { |
2399 | { |
1365 | asyncs [i]->sent = 0; |
2400 | asyncs [i]->sent = 0; |
|
|
2401 | ECB_MEMORY_FENCE_RELEASE; |
1366 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2402 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1367 | } |
2403 | } |
1368 | } |
2404 | } |
1369 | #endif |
2405 | #endif |
1370 | } |
2406 | } |
1371 | |
2407 | |
1372 | /*****************************************************************************/ |
2408 | /*****************************************************************************/ |
1373 | |
2409 | |
1374 | void |
2410 | void |
1375 | ev_feed_signal (int signum) |
2411 | ev_feed_signal (int signum) EV_THROW |
1376 | { |
2412 | { |
1377 | #if EV_MULTIPLICITY |
2413 | #if EV_MULTIPLICITY |
|
|
2414 | EV_P; |
|
|
2415 | ECB_MEMORY_FENCE_ACQUIRE; |
1378 | EV_P = signals [signum - 1].loop; |
2416 | EV_A = signals [signum - 1].loop; |
1379 | |
2417 | |
1380 | if (!EV_A) |
2418 | if (!EV_A) |
1381 | return; |
2419 | return; |
1382 | #endif |
2420 | #endif |
1383 | |
2421 | |
… | |
… | |
1394 | |
2432 | |
1395 | ev_feed_signal (signum); |
2433 | ev_feed_signal (signum); |
1396 | } |
2434 | } |
1397 | |
2435 | |
1398 | void noinline |
2436 | void noinline |
1399 | ev_feed_signal_event (EV_P_ int signum) |
2437 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
1400 | { |
2438 | { |
1401 | WL w; |
2439 | WL w; |
1402 | |
2440 | |
1403 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
2441 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
1404 | return; |
2442 | return; |
1405 | |
2443 | |
1406 | --signum; |
2444 | --signum; |
1407 | |
2445 | |
1408 | #if EV_MULTIPLICITY |
2446 | #if EV_MULTIPLICITY |
… | |
… | |
1412 | if (expect_false (signals [signum].loop != EV_A)) |
2450 | if (expect_false (signals [signum].loop != EV_A)) |
1413 | return; |
2451 | return; |
1414 | #endif |
2452 | #endif |
1415 | |
2453 | |
1416 | signals [signum].pending = 0; |
2454 | signals [signum].pending = 0; |
|
|
2455 | ECB_MEMORY_FENCE_RELEASE; |
1417 | |
2456 | |
1418 | for (w = signals [signum].head; w; w = w->next) |
2457 | for (w = signals [signum].head; w; w = w->next) |
1419 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2458 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1420 | } |
2459 | } |
1421 | |
2460 | |
… | |
… | |
1519 | #endif |
2558 | #endif |
1520 | #if EV_USE_SELECT |
2559 | #if EV_USE_SELECT |
1521 | # include "ev_select.c" |
2560 | # include "ev_select.c" |
1522 | #endif |
2561 | #endif |
1523 | |
2562 | |
1524 | int |
2563 | int ecb_cold |
1525 | ev_version_major (void) |
2564 | ev_version_major (void) EV_THROW |
1526 | { |
2565 | { |
1527 | return EV_VERSION_MAJOR; |
2566 | return EV_VERSION_MAJOR; |
1528 | } |
2567 | } |
1529 | |
2568 | |
1530 | int |
2569 | int ecb_cold |
1531 | ev_version_minor (void) |
2570 | ev_version_minor (void) EV_THROW |
1532 | { |
2571 | { |
1533 | return EV_VERSION_MINOR; |
2572 | return EV_VERSION_MINOR; |
1534 | } |
2573 | } |
1535 | |
2574 | |
1536 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2575 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1537 | int inline_size |
2576 | int inline_size ecb_cold |
1538 | enable_secure (void) |
2577 | enable_secure (void) |
1539 | { |
2578 | { |
1540 | #ifdef _WIN32 |
2579 | #ifdef _WIN32 |
1541 | return 0; |
2580 | return 0; |
1542 | #else |
2581 | #else |
1543 | return getuid () != geteuid () |
2582 | return getuid () != geteuid () |
1544 | || getgid () != getegid (); |
2583 | || getgid () != getegid (); |
1545 | #endif |
2584 | #endif |
1546 | } |
2585 | } |
1547 | |
2586 | |
1548 | unsigned int |
2587 | unsigned int ecb_cold |
1549 | ev_supported_backends (void) |
2588 | ev_supported_backends (void) EV_THROW |
1550 | { |
2589 | { |
1551 | unsigned int flags = 0; |
2590 | unsigned int flags = 0; |
1552 | |
2591 | |
1553 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2592 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
1554 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2593 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
… | |
… | |
1557 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2596 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
1558 | |
2597 | |
1559 | return flags; |
2598 | return flags; |
1560 | } |
2599 | } |
1561 | |
2600 | |
1562 | unsigned int |
2601 | unsigned int ecb_cold |
1563 | ev_recommended_backends (void) |
2602 | ev_recommended_backends (void) EV_THROW |
1564 | { |
2603 | { |
1565 | unsigned int flags = ev_supported_backends (); |
2604 | unsigned int flags = ev_supported_backends (); |
1566 | |
2605 | |
1567 | #ifndef __NetBSD__ |
2606 | #ifndef __NetBSD__ |
1568 | /* kqueue is borked on everything but netbsd apparently */ |
2607 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
1579 | #endif |
2618 | #endif |
1580 | |
2619 | |
1581 | return flags; |
2620 | return flags; |
1582 | } |
2621 | } |
1583 | |
2622 | |
1584 | unsigned int |
2623 | unsigned int ecb_cold |
1585 | ev_embeddable_backends (void) |
2624 | ev_embeddable_backends (void) EV_THROW |
1586 | { |
2625 | { |
1587 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2626 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1588 | |
2627 | |
1589 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2628 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1590 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
2629 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
… | |
… | |
1592 | |
2631 | |
1593 | return flags; |
2632 | return flags; |
1594 | } |
2633 | } |
1595 | |
2634 | |
1596 | unsigned int |
2635 | unsigned int |
1597 | ev_backend (EV_P) |
2636 | ev_backend (EV_P) EV_THROW |
1598 | { |
2637 | { |
1599 | return backend; |
2638 | return backend; |
1600 | } |
2639 | } |
1601 | |
2640 | |
1602 | #if EV_FEATURE_API |
2641 | #if EV_FEATURE_API |
1603 | unsigned int |
2642 | unsigned int |
1604 | ev_iteration (EV_P) |
2643 | ev_iteration (EV_P) EV_THROW |
1605 | { |
2644 | { |
1606 | return loop_count; |
2645 | return loop_count; |
1607 | } |
2646 | } |
1608 | |
2647 | |
1609 | unsigned int |
2648 | unsigned int |
1610 | ev_depth (EV_P) |
2649 | ev_depth (EV_P) EV_THROW |
1611 | { |
2650 | { |
1612 | return loop_depth; |
2651 | return loop_depth; |
1613 | } |
2652 | } |
1614 | |
2653 | |
1615 | void |
2654 | void |
1616 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
2655 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1617 | { |
2656 | { |
1618 | io_blocktime = interval; |
2657 | io_blocktime = interval; |
1619 | } |
2658 | } |
1620 | |
2659 | |
1621 | void |
2660 | void |
1622 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
2661 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1623 | { |
2662 | { |
1624 | timeout_blocktime = interval; |
2663 | timeout_blocktime = interval; |
1625 | } |
2664 | } |
1626 | |
2665 | |
1627 | void |
2666 | void |
1628 | ev_set_userdata (EV_P_ void *data) |
2667 | ev_set_userdata (EV_P_ void *data) EV_THROW |
1629 | { |
2668 | { |
1630 | userdata = data; |
2669 | userdata = data; |
1631 | } |
2670 | } |
1632 | |
2671 | |
1633 | void * |
2672 | void * |
1634 | ev_userdata (EV_P) |
2673 | ev_userdata (EV_P) EV_THROW |
1635 | { |
2674 | { |
1636 | return userdata; |
2675 | return userdata; |
1637 | } |
2676 | } |
1638 | |
2677 | |
|
|
2678 | void |
1639 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
2679 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW |
1640 | { |
2680 | { |
1641 | invoke_cb = invoke_pending_cb; |
2681 | invoke_cb = invoke_pending_cb; |
1642 | } |
2682 | } |
1643 | |
2683 | |
|
|
2684 | void |
1644 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
2685 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW |
1645 | { |
2686 | { |
1646 | release_cb = release; |
2687 | release_cb = release; |
1647 | acquire_cb = acquire; |
2688 | acquire_cb = acquire; |
1648 | } |
2689 | } |
1649 | #endif |
2690 | #endif |
1650 | |
2691 | |
1651 | /* initialise a loop structure, must be zero-initialised */ |
2692 | /* initialise a loop structure, must be zero-initialised */ |
1652 | static void noinline |
2693 | static void noinline ecb_cold |
1653 | loop_init (EV_P_ unsigned int flags) |
2694 | loop_init (EV_P_ unsigned int flags) EV_THROW |
1654 | { |
2695 | { |
1655 | if (!backend) |
2696 | if (!backend) |
1656 | { |
2697 | { |
1657 | origflags = flags; |
2698 | origflags = flags; |
1658 | |
2699 | |
… | |
… | |
1685 | if (!(flags & EVFLAG_NOENV) |
2726 | if (!(flags & EVFLAG_NOENV) |
1686 | && !enable_secure () |
2727 | && !enable_secure () |
1687 | && getenv ("LIBEV_FLAGS")) |
2728 | && getenv ("LIBEV_FLAGS")) |
1688 | flags = atoi (getenv ("LIBEV_FLAGS")); |
2729 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1689 | |
2730 | |
1690 | ev_rt_now = ev_time (); |
2731 | ev_rt_now = ev_time (); |
1691 | mn_now = get_clock (); |
2732 | mn_now = get_clock (); |
1692 | now_floor = mn_now; |
2733 | now_floor = mn_now; |
1693 | rtmn_diff = ev_rt_now - mn_now; |
2734 | rtmn_diff = ev_rt_now - mn_now; |
1694 | #if EV_FEATURE_API |
2735 | #if EV_FEATURE_API |
1695 | invoke_cb = ev_invoke_pending; |
2736 | invoke_cb = ev_invoke_pending; |
1696 | #endif |
2737 | #endif |
1697 | |
2738 | |
1698 | io_blocktime = 0.; |
2739 | io_blocktime = 0.; |
1699 | timeout_blocktime = 0.; |
2740 | timeout_blocktime = 0.; |
1700 | backend = 0; |
2741 | backend = 0; |
1701 | backend_fd = -1; |
2742 | backend_fd = -1; |
1702 | sig_pending = 0; |
2743 | sig_pending = 0; |
1703 | #if EV_ASYNC_ENABLE |
2744 | #if EV_ASYNC_ENABLE |
1704 | async_pending = 0; |
2745 | async_pending = 0; |
1705 | #endif |
2746 | #endif |
|
|
2747 | pipe_write_skipped = 0; |
|
|
2748 | pipe_write_wanted = 0; |
|
|
2749 | evpipe [0] = -1; |
|
|
2750 | evpipe [1] = -1; |
1706 | #if EV_USE_INOTIFY |
2751 | #if EV_USE_INOTIFY |
1707 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2752 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1708 | #endif |
2753 | #endif |
1709 | #if EV_USE_SIGNALFD |
2754 | #if EV_USE_SIGNALFD |
1710 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
2755 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1711 | #endif |
2756 | #endif |
1712 | |
2757 | |
1713 | if (!(flags & EVBACKEND_MASK)) |
2758 | if (!(flags & EVBACKEND_MASK)) |
1714 | flags |= ev_recommended_backends (); |
2759 | flags |= ev_recommended_backends (); |
1715 | |
2760 | |
… | |
… | |
1740 | #endif |
2785 | #endif |
1741 | } |
2786 | } |
1742 | } |
2787 | } |
1743 | |
2788 | |
1744 | /* free up a loop structure */ |
2789 | /* free up a loop structure */ |
1745 | void |
2790 | void ecb_cold |
1746 | ev_loop_destroy (EV_P) |
2791 | ev_loop_destroy (EV_P) |
1747 | { |
2792 | { |
1748 | int i; |
2793 | int i; |
1749 | |
2794 | |
1750 | #if EV_MULTIPLICITY |
2795 | #if EV_MULTIPLICITY |
… | |
… | |
1761 | EV_INVOKE_PENDING; |
2806 | EV_INVOKE_PENDING; |
1762 | } |
2807 | } |
1763 | #endif |
2808 | #endif |
1764 | |
2809 | |
1765 | #if EV_CHILD_ENABLE |
2810 | #if EV_CHILD_ENABLE |
1766 | if (ev_is_active (&childev)) |
2811 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
1767 | { |
2812 | { |
1768 | ev_ref (EV_A); /* child watcher */ |
2813 | ev_ref (EV_A); /* child watcher */ |
1769 | ev_signal_stop (EV_A_ &childev); |
2814 | ev_signal_stop (EV_A_ &childev); |
1770 | } |
2815 | } |
1771 | #endif |
2816 | #endif |
… | |
… | |
1773 | if (ev_is_active (&pipe_w)) |
2818 | if (ev_is_active (&pipe_w)) |
1774 | { |
2819 | { |
1775 | /*ev_ref (EV_A);*/ |
2820 | /*ev_ref (EV_A);*/ |
1776 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2821 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1777 | |
2822 | |
1778 | #if EV_USE_EVENTFD |
|
|
1779 | if (evfd >= 0) |
|
|
1780 | close (evfd); |
|
|
1781 | #endif |
|
|
1782 | |
|
|
1783 | if (evpipe [0] >= 0) |
|
|
1784 | { |
|
|
1785 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2823 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
1786 | EV_WIN32_CLOSE_FD (evpipe [1]); |
2824 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
1787 | } |
|
|
1788 | } |
2825 | } |
1789 | |
2826 | |
1790 | #if EV_USE_SIGNALFD |
2827 | #if EV_USE_SIGNALFD |
1791 | if (ev_is_active (&sigfd_w)) |
2828 | if (ev_is_active (&sigfd_w)) |
1792 | close (sigfd); |
2829 | close (sigfd); |
… | |
… | |
1878 | #endif |
2915 | #endif |
1879 | #if EV_USE_INOTIFY |
2916 | #if EV_USE_INOTIFY |
1880 | infy_fork (EV_A); |
2917 | infy_fork (EV_A); |
1881 | #endif |
2918 | #endif |
1882 | |
2919 | |
|
|
2920 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1883 | if (ev_is_active (&pipe_w)) |
2921 | if (ev_is_active (&pipe_w)) |
1884 | { |
2922 | { |
1885 | /* this "locks" the handlers against writing to the pipe */ |
2923 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
1886 | /* while we modify the fd vars */ |
|
|
1887 | sig_pending = 1; |
|
|
1888 | #if EV_ASYNC_ENABLE |
|
|
1889 | async_pending = 1; |
|
|
1890 | #endif |
|
|
1891 | |
2924 | |
1892 | ev_ref (EV_A); |
2925 | ev_ref (EV_A); |
1893 | ev_io_stop (EV_A_ &pipe_w); |
2926 | ev_io_stop (EV_A_ &pipe_w); |
1894 | |
2927 | |
1895 | #if EV_USE_EVENTFD |
|
|
1896 | if (evfd >= 0) |
|
|
1897 | close (evfd); |
|
|
1898 | #endif |
|
|
1899 | |
|
|
1900 | if (evpipe [0] >= 0) |
2928 | if (evpipe [0] >= 0) |
1901 | { |
|
|
1902 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2929 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1903 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
1904 | } |
|
|
1905 | |
2930 | |
1906 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
1907 | evpipe_init (EV_A); |
2931 | evpipe_init (EV_A); |
1908 | /* now iterate over everything, in case we missed something */ |
2932 | /* iterate over everything, in case we missed something before */ |
1909 | pipecb (EV_A_ &pipe_w, EV_READ); |
2933 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
1910 | #endif |
|
|
1911 | } |
2934 | } |
|
|
2935 | #endif |
1912 | |
2936 | |
1913 | postfork = 0; |
2937 | postfork = 0; |
1914 | } |
2938 | } |
1915 | |
2939 | |
1916 | #if EV_MULTIPLICITY |
2940 | #if EV_MULTIPLICITY |
1917 | |
2941 | |
1918 | struct ev_loop * |
2942 | struct ev_loop * ecb_cold |
1919 | ev_loop_new (unsigned int flags) |
2943 | ev_loop_new (unsigned int flags) EV_THROW |
1920 | { |
2944 | { |
1921 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2945 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1922 | |
2946 | |
1923 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2947 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1924 | loop_init (EV_A_ flags); |
2948 | loop_init (EV_A_ flags); |
… | |
… | |
1931 | } |
2955 | } |
1932 | |
2956 | |
1933 | #endif /* multiplicity */ |
2957 | #endif /* multiplicity */ |
1934 | |
2958 | |
1935 | #if EV_VERIFY |
2959 | #if EV_VERIFY |
1936 | static void noinline |
2960 | static void noinline ecb_cold |
1937 | verify_watcher (EV_P_ W w) |
2961 | verify_watcher (EV_P_ W w) |
1938 | { |
2962 | { |
1939 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2963 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1940 | |
2964 | |
1941 | if (w->pending) |
2965 | if (w->pending) |
1942 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2966 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1943 | } |
2967 | } |
1944 | |
2968 | |
1945 | static void noinline |
2969 | static void noinline ecb_cold |
1946 | verify_heap (EV_P_ ANHE *heap, int N) |
2970 | verify_heap (EV_P_ ANHE *heap, int N) |
1947 | { |
2971 | { |
1948 | int i; |
2972 | int i; |
1949 | |
2973 | |
1950 | for (i = HEAP0; i < N + HEAP0; ++i) |
2974 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
1955 | |
2979 | |
1956 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2980 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1957 | } |
2981 | } |
1958 | } |
2982 | } |
1959 | |
2983 | |
1960 | static void noinline |
2984 | static void noinline ecb_cold |
1961 | array_verify (EV_P_ W *ws, int cnt) |
2985 | array_verify (EV_P_ W *ws, int cnt) |
1962 | { |
2986 | { |
1963 | while (cnt--) |
2987 | while (cnt--) |
1964 | { |
2988 | { |
1965 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
2989 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
… | |
… | |
1967 | } |
2991 | } |
1968 | } |
2992 | } |
1969 | #endif |
2993 | #endif |
1970 | |
2994 | |
1971 | #if EV_FEATURE_API |
2995 | #if EV_FEATURE_API |
1972 | void |
2996 | void ecb_cold |
1973 | ev_verify (EV_P) |
2997 | ev_verify (EV_P) EV_THROW |
1974 | { |
2998 | { |
1975 | #if EV_VERIFY |
2999 | #if EV_VERIFY |
1976 | int i; |
3000 | int i; |
1977 | WL w; |
3001 | WL w, w2; |
1978 | |
3002 | |
1979 | assert (activecnt >= -1); |
3003 | assert (activecnt >= -1); |
1980 | |
3004 | |
1981 | assert (fdchangemax >= fdchangecnt); |
3005 | assert (fdchangemax >= fdchangecnt); |
1982 | for (i = 0; i < fdchangecnt; ++i) |
3006 | for (i = 0; i < fdchangecnt; ++i) |
1983 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
3007 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
1984 | |
3008 | |
1985 | assert (anfdmax >= 0); |
3009 | assert (anfdmax >= 0); |
1986 | for (i = 0; i < anfdmax; ++i) |
3010 | for (i = 0; i < anfdmax; ++i) |
|
|
3011 | { |
|
|
3012 | int j = 0; |
|
|
3013 | |
1987 | for (w = anfds [i].head; w; w = w->next) |
3014 | for (w = w2 = anfds [i].head; w; w = w->next) |
1988 | { |
3015 | { |
1989 | verify_watcher (EV_A_ (W)w); |
3016 | verify_watcher (EV_A_ (W)w); |
|
|
3017 | |
|
|
3018 | if (j++ & 1) |
|
|
3019 | { |
|
|
3020 | assert (("libev: io watcher list contains a loop", w != w2)); |
|
|
3021 | w2 = w2->next; |
|
|
3022 | } |
|
|
3023 | |
1990 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
3024 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
1991 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
3025 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1992 | } |
3026 | } |
|
|
3027 | } |
1993 | |
3028 | |
1994 | assert (timermax >= timercnt); |
3029 | assert (timermax >= timercnt); |
1995 | verify_heap (EV_A_ timers, timercnt); |
3030 | verify_heap (EV_A_ timers, timercnt); |
1996 | |
3031 | |
1997 | #if EV_PERIODIC_ENABLE |
3032 | #if EV_PERIODIC_ENABLE |
… | |
… | |
2043 | #endif |
3078 | #endif |
2044 | } |
3079 | } |
2045 | #endif |
3080 | #endif |
2046 | |
3081 | |
2047 | #if EV_MULTIPLICITY |
3082 | #if EV_MULTIPLICITY |
2048 | struct ev_loop * |
3083 | struct ev_loop * ecb_cold |
2049 | #else |
3084 | #else |
2050 | int |
3085 | int |
2051 | #endif |
3086 | #endif |
2052 | ev_default_loop (unsigned int flags) |
3087 | ev_default_loop (unsigned int flags) EV_THROW |
2053 | { |
3088 | { |
2054 | if (!ev_default_loop_ptr) |
3089 | if (!ev_default_loop_ptr) |
2055 | { |
3090 | { |
2056 | #if EV_MULTIPLICITY |
3091 | #if EV_MULTIPLICITY |
2057 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
3092 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
2076 | |
3111 | |
2077 | return ev_default_loop_ptr; |
3112 | return ev_default_loop_ptr; |
2078 | } |
3113 | } |
2079 | |
3114 | |
2080 | void |
3115 | void |
2081 | ev_loop_fork (EV_P) |
3116 | ev_loop_fork (EV_P) EV_THROW |
2082 | { |
3117 | { |
2083 | postfork = 1; /* must be in line with ev_default_fork */ |
3118 | postfork = 1; |
2084 | } |
3119 | } |
2085 | |
3120 | |
2086 | /*****************************************************************************/ |
3121 | /*****************************************************************************/ |
2087 | |
3122 | |
2088 | void |
3123 | void |
… | |
… | |
2090 | { |
3125 | { |
2091 | EV_CB_INVOKE ((W)w, revents); |
3126 | EV_CB_INVOKE ((W)w, revents); |
2092 | } |
3127 | } |
2093 | |
3128 | |
2094 | unsigned int |
3129 | unsigned int |
2095 | ev_pending_count (EV_P) |
3130 | ev_pending_count (EV_P) EV_THROW |
2096 | { |
3131 | { |
2097 | int pri; |
3132 | int pri; |
2098 | unsigned int count = 0; |
3133 | unsigned int count = 0; |
2099 | |
3134 | |
2100 | for (pri = NUMPRI; pri--; ) |
3135 | for (pri = NUMPRI; pri--; ) |
… | |
… | |
2104 | } |
3139 | } |
2105 | |
3140 | |
2106 | void noinline |
3141 | void noinline |
2107 | ev_invoke_pending (EV_P) |
3142 | ev_invoke_pending (EV_P) |
2108 | { |
3143 | { |
2109 | int pri; |
3144 | pendingpri = NUMPRI; |
2110 | |
3145 | |
2111 | for (pri = NUMPRI; pri--; ) |
3146 | while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ |
|
|
3147 | { |
|
|
3148 | --pendingpri; |
|
|
3149 | |
2112 | while (pendingcnt [pri]) |
3150 | while (pendingcnt [pendingpri]) |
2113 | { |
3151 | { |
2114 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
3152 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2115 | |
3153 | |
2116 | p->w->pending = 0; |
3154 | p->w->pending = 0; |
2117 | EV_CB_INVOKE (p->w, p->events); |
3155 | EV_CB_INVOKE (p->w, p->events); |
2118 | EV_FREQUENT_CHECK; |
3156 | EV_FREQUENT_CHECK; |
2119 | } |
3157 | } |
|
|
3158 | } |
2120 | } |
3159 | } |
2121 | |
3160 | |
2122 | #if EV_IDLE_ENABLE |
3161 | #if EV_IDLE_ENABLE |
2123 | /* make idle watchers pending. this handles the "call-idle */ |
3162 | /* make idle watchers pending. this handles the "call-idle */ |
2124 | /* only when higher priorities are idle" logic */ |
3163 | /* only when higher priorities are idle" logic */ |
… | |
… | |
2181 | feed_reverse_done (EV_A_ EV_TIMER); |
3220 | feed_reverse_done (EV_A_ EV_TIMER); |
2182 | } |
3221 | } |
2183 | } |
3222 | } |
2184 | |
3223 | |
2185 | #if EV_PERIODIC_ENABLE |
3224 | #if EV_PERIODIC_ENABLE |
|
|
3225 | |
|
|
3226 | static void noinline |
|
|
3227 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
3228 | { |
|
|
3229 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
|
|
3230 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
|
|
3231 | |
|
|
3232 | /* the above almost always errs on the low side */ |
|
|
3233 | while (at <= ev_rt_now) |
|
|
3234 | { |
|
|
3235 | ev_tstamp nat = at + w->interval; |
|
|
3236 | |
|
|
3237 | /* when resolution fails us, we use ev_rt_now */ |
|
|
3238 | if (expect_false (nat == at)) |
|
|
3239 | { |
|
|
3240 | at = ev_rt_now; |
|
|
3241 | break; |
|
|
3242 | } |
|
|
3243 | |
|
|
3244 | at = nat; |
|
|
3245 | } |
|
|
3246 | |
|
|
3247 | ev_at (w) = at; |
|
|
3248 | } |
|
|
3249 | |
2186 | /* make periodics pending */ |
3250 | /* make periodics pending */ |
2187 | inline_size void |
3251 | inline_size void |
2188 | periodics_reify (EV_P) |
3252 | periodics_reify (EV_P) |
2189 | { |
3253 | { |
2190 | EV_FREQUENT_CHECK; |
3254 | EV_FREQUENT_CHECK; |
2191 | |
3255 | |
2192 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
3256 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2193 | { |
3257 | { |
2194 | int feed_count = 0; |
|
|
2195 | |
|
|
2196 | do |
3258 | do |
2197 | { |
3259 | { |
2198 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
3260 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2199 | |
3261 | |
2200 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
3262 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
… | |
… | |
2209 | ANHE_at_cache (periodics [HEAP0]); |
3271 | ANHE_at_cache (periodics [HEAP0]); |
2210 | downheap (periodics, periodiccnt, HEAP0); |
3272 | downheap (periodics, periodiccnt, HEAP0); |
2211 | } |
3273 | } |
2212 | else if (w->interval) |
3274 | else if (w->interval) |
2213 | { |
3275 | { |
2214 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
3276 | periodic_recalc (EV_A_ w); |
2215 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2216 | /* this might happen because of floating point inexactness */ |
|
|
2217 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2218 | { |
|
|
2219 | ev_at (w) += w->interval; |
|
|
2220 | |
|
|
2221 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2222 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2223 | /* has effectively asked to get triggered more often than possible */ |
|
|
2224 | if (ev_at (w) < ev_rt_now) |
|
|
2225 | ev_at (w) = ev_rt_now; |
|
|
2226 | } |
|
|
2227 | |
|
|
2228 | ANHE_at_cache (periodics [HEAP0]); |
3277 | ANHE_at_cache (periodics [HEAP0]); |
2229 | downheap (periodics, periodiccnt, HEAP0); |
3278 | downheap (periodics, periodiccnt, HEAP0); |
2230 | } |
3279 | } |
2231 | else |
3280 | else |
2232 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
3281 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
… | |
… | |
2240 | } |
3289 | } |
2241 | } |
3290 | } |
2242 | |
3291 | |
2243 | /* simply recalculate all periodics */ |
3292 | /* simply recalculate all periodics */ |
2244 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
3293 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2245 | static void noinline |
3294 | static void noinline ecb_cold |
2246 | periodics_reschedule (EV_P) |
3295 | periodics_reschedule (EV_P) |
2247 | { |
3296 | { |
2248 | int i; |
3297 | int i; |
2249 | |
3298 | |
2250 | /* adjust periodics after time jump */ |
3299 | /* adjust periodics after time jump */ |
… | |
… | |
2253 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
3302 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
2254 | |
3303 | |
2255 | if (w->reschedule_cb) |
3304 | if (w->reschedule_cb) |
2256 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3305 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2257 | else if (w->interval) |
3306 | else if (w->interval) |
2258 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
3307 | periodic_recalc (EV_A_ w); |
2259 | |
3308 | |
2260 | ANHE_at_cache (periodics [i]); |
3309 | ANHE_at_cache (periodics [i]); |
2261 | } |
3310 | } |
2262 | |
3311 | |
2263 | reheap (periodics, periodiccnt); |
3312 | reheap (periodics, periodiccnt); |
2264 | } |
3313 | } |
2265 | #endif |
3314 | #endif |
2266 | |
3315 | |
2267 | /* adjust all timers by a given offset */ |
3316 | /* adjust all timers by a given offset */ |
2268 | static void noinline |
3317 | static void noinline ecb_cold |
2269 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3318 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2270 | { |
3319 | { |
2271 | int i; |
3320 | int i; |
2272 | |
3321 | |
2273 | for (i = 0; i < timercnt; ++i) |
3322 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
2310 | * doesn't hurt either as we only do this on time-jumps or |
3359 | * doesn't hurt either as we only do this on time-jumps or |
2311 | * in the unlikely event of having been preempted here. |
3360 | * in the unlikely event of having been preempted here. |
2312 | */ |
3361 | */ |
2313 | for (i = 4; --i; ) |
3362 | for (i = 4; --i; ) |
2314 | { |
3363 | { |
|
|
3364 | ev_tstamp diff; |
2315 | rtmn_diff = ev_rt_now - mn_now; |
3365 | rtmn_diff = ev_rt_now - mn_now; |
2316 | |
3366 | |
|
|
3367 | diff = odiff - rtmn_diff; |
|
|
3368 | |
2317 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
3369 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
2318 | return; /* all is well */ |
3370 | return; /* all is well */ |
2319 | |
3371 | |
2320 | ev_rt_now = ev_time (); |
3372 | ev_rt_now = ev_time (); |
2321 | mn_now = get_clock (); |
3373 | mn_now = get_clock (); |
2322 | now_floor = mn_now; |
3374 | now_floor = mn_now; |
… | |
… | |
2344 | |
3396 | |
2345 | mn_now = ev_rt_now; |
3397 | mn_now = ev_rt_now; |
2346 | } |
3398 | } |
2347 | } |
3399 | } |
2348 | |
3400 | |
2349 | void |
3401 | int |
2350 | ev_run (EV_P_ int flags) |
3402 | ev_run (EV_P_ int flags) |
2351 | { |
3403 | { |
2352 | #if EV_FEATURE_API |
3404 | #if EV_FEATURE_API |
2353 | ++loop_depth; |
3405 | ++loop_depth; |
2354 | #endif |
3406 | #endif |
… | |
… | |
2412 | ev_tstamp prev_mn_now = mn_now; |
3464 | ev_tstamp prev_mn_now = mn_now; |
2413 | |
3465 | |
2414 | /* update time to cancel out callback processing overhead */ |
3466 | /* update time to cancel out callback processing overhead */ |
2415 | time_update (EV_A_ 1e100); |
3467 | time_update (EV_A_ 1e100); |
2416 | |
3468 | |
|
|
3469 | /* from now on, we want a pipe-wake-up */ |
|
|
3470 | pipe_write_wanted = 1; |
|
|
3471 | |
|
|
3472 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
3473 | |
2417 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt))) |
3474 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
2418 | { |
3475 | { |
2419 | waittime = MAX_BLOCKTIME; |
3476 | waittime = MAX_BLOCKTIME; |
2420 | |
3477 | |
2421 | if (timercnt) |
3478 | if (timercnt) |
2422 | { |
3479 | { |
2423 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
3480 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
2424 | if (waittime > to) waittime = to; |
3481 | if (waittime > to) waittime = to; |
2425 | } |
3482 | } |
2426 | |
3483 | |
2427 | #if EV_PERIODIC_ENABLE |
3484 | #if EV_PERIODIC_ENABLE |
2428 | if (periodiccnt) |
3485 | if (periodiccnt) |
2429 | { |
3486 | { |
2430 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
3487 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now; |
2431 | if (waittime > to) waittime = to; |
3488 | if (waittime > to) waittime = to; |
2432 | } |
3489 | } |
2433 | #endif |
3490 | #endif |
2434 | |
3491 | |
2435 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3492 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2436 | if (expect_false (waittime < timeout_blocktime)) |
3493 | if (expect_false (waittime < timeout_blocktime)) |
2437 | waittime = timeout_blocktime; |
3494 | waittime = timeout_blocktime; |
|
|
3495 | |
|
|
3496 | /* at this point, we NEED to wait, so we have to ensure */ |
|
|
3497 | /* to pass a minimum nonzero value to the backend */ |
|
|
3498 | if (expect_false (waittime < backend_mintime)) |
|
|
3499 | waittime = backend_mintime; |
2438 | |
3500 | |
2439 | /* extra check because io_blocktime is commonly 0 */ |
3501 | /* extra check because io_blocktime is commonly 0 */ |
2440 | if (expect_false (io_blocktime)) |
3502 | if (expect_false (io_blocktime)) |
2441 | { |
3503 | { |
2442 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
3504 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
2443 | |
3505 | |
2444 | if (sleeptime > waittime - backend_fudge) |
3506 | if (sleeptime > waittime - backend_mintime) |
2445 | sleeptime = waittime - backend_fudge; |
3507 | sleeptime = waittime - backend_mintime; |
2446 | |
3508 | |
2447 | if (expect_true (sleeptime > 0.)) |
3509 | if (expect_true (sleeptime > 0.)) |
2448 | { |
3510 | { |
2449 | ev_sleep (sleeptime); |
3511 | ev_sleep (sleeptime); |
2450 | waittime -= sleeptime; |
3512 | waittime -= sleeptime; |
… | |
… | |
2457 | #endif |
3519 | #endif |
2458 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
3520 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2459 | backend_poll (EV_A_ waittime); |
3521 | backend_poll (EV_A_ waittime); |
2460 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
3522 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
2461 | |
3523 | |
|
|
3524 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
|
|
3525 | |
|
|
3526 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
3527 | if (pipe_write_skipped) |
|
|
3528 | { |
|
|
3529 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
3530 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
3531 | } |
|
|
3532 | |
|
|
3533 | |
2462 | /* update ev_rt_now, do magic */ |
3534 | /* update ev_rt_now, do magic */ |
2463 | time_update (EV_A_ waittime + sleeptime); |
3535 | time_update (EV_A_ waittime + sleeptime); |
2464 | } |
3536 | } |
2465 | |
3537 | |
2466 | /* queue pending timers and reschedule them */ |
3538 | /* queue pending timers and reschedule them */ |
… | |
… | |
2492 | loop_done = EVBREAK_CANCEL; |
3564 | loop_done = EVBREAK_CANCEL; |
2493 | |
3565 | |
2494 | #if EV_FEATURE_API |
3566 | #if EV_FEATURE_API |
2495 | --loop_depth; |
3567 | --loop_depth; |
2496 | #endif |
3568 | #endif |
|
|
3569 | |
|
|
3570 | return activecnt; |
2497 | } |
3571 | } |
2498 | |
3572 | |
2499 | void |
3573 | void |
2500 | ev_break (EV_P_ int how) |
3574 | ev_break (EV_P_ int how) EV_THROW |
2501 | { |
3575 | { |
2502 | loop_done = how; |
3576 | loop_done = how; |
2503 | } |
3577 | } |
2504 | |
3578 | |
2505 | void |
3579 | void |
2506 | ev_ref (EV_P) |
3580 | ev_ref (EV_P) EV_THROW |
2507 | { |
3581 | { |
2508 | ++activecnt; |
3582 | ++activecnt; |
2509 | } |
3583 | } |
2510 | |
3584 | |
2511 | void |
3585 | void |
2512 | ev_unref (EV_P) |
3586 | ev_unref (EV_P) EV_THROW |
2513 | { |
3587 | { |
2514 | --activecnt; |
3588 | --activecnt; |
2515 | } |
3589 | } |
2516 | |
3590 | |
2517 | void |
3591 | void |
2518 | ev_now_update (EV_P) |
3592 | ev_now_update (EV_P) EV_THROW |
2519 | { |
3593 | { |
2520 | time_update (EV_A_ 1e100); |
3594 | time_update (EV_A_ 1e100); |
2521 | } |
3595 | } |
2522 | |
3596 | |
2523 | void |
3597 | void |
2524 | ev_suspend (EV_P) |
3598 | ev_suspend (EV_P) EV_THROW |
2525 | { |
3599 | { |
2526 | ev_now_update (EV_A); |
3600 | ev_now_update (EV_A); |
2527 | } |
3601 | } |
2528 | |
3602 | |
2529 | void |
3603 | void |
2530 | ev_resume (EV_P) |
3604 | ev_resume (EV_P) EV_THROW |
2531 | { |
3605 | { |
2532 | ev_tstamp mn_prev = mn_now; |
3606 | ev_tstamp mn_prev = mn_now; |
2533 | |
3607 | |
2534 | ev_now_update (EV_A); |
3608 | ev_now_update (EV_A); |
2535 | timers_reschedule (EV_A_ mn_now - mn_prev); |
3609 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
2574 | w->pending = 0; |
3648 | w->pending = 0; |
2575 | } |
3649 | } |
2576 | } |
3650 | } |
2577 | |
3651 | |
2578 | int |
3652 | int |
2579 | ev_clear_pending (EV_P_ void *w) |
3653 | ev_clear_pending (EV_P_ void *w) EV_THROW |
2580 | { |
3654 | { |
2581 | W w_ = (W)w; |
3655 | W w_ = (W)w; |
2582 | int pending = w_->pending; |
3656 | int pending = w_->pending; |
2583 | |
3657 | |
2584 | if (expect_true (pending)) |
3658 | if (expect_true (pending)) |
… | |
… | |
2617 | } |
3691 | } |
2618 | |
3692 | |
2619 | /*****************************************************************************/ |
3693 | /*****************************************************************************/ |
2620 | |
3694 | |
2621 | void noinline |
3695 | void noinline |
2622 | ev_io_start (EV_P_ ev_io *w) |
3696 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
2623 | { |
3697 | { |
2624 | int fd = w->fd; |
3698 | int fd = w->fd; |
2625 | |
3699 | |
2626 | if (expect_false (ev_is_active (w))) |
3700 | if (expect_false (ev_is_active (w))) |
2627 | return; |
3701 | return; |
… | |
… | |
2633 | |
3707 | |
2634 | ev_start (EV_A_ (W)w, 1); |
3708 | ev_start (EV_A_ (W)w, 1); |
2635 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
3709 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2636 | wlist_add (&anfds[fd].head, (WL)w); |
3710 | wlist_add (&anfds[fd].head, (WL)w); |
2637 | |
3711 | |
|
|
3712 | /* common bug, apparently */ |
|
|
3713 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
|
|
3714 | |
2638 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
3715 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2639 | w->events &= ~EV__IOFDSET; |
3716 | w->events &= ~EV__IOFDSET; |
2640 | |
3717 | |
2641 | EV_FREQUENT_CHECK; |
3718 | EV_FREQUENT_CHECK; |
2642 | } |
3719 | } |
2643 | |
3720 | |
2644 | void noinline |
3721 | void noinline |
2645 | ev_io_stop (EV_P_ ev_io *w) |
3722 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
2646 | { |
3723 | { |
2647 | clear_pending (EV_A_ (W)w); |
3724 | clear_pending (EV_A_ (W)w); |
2648 | if (expect_false (!ev_is_active (w))) |
3725 | if (expect_false (!ev_is_active (w))) |
2649 | return; |
3726 | return; |
2650 | |
3727 | |
… | |
… | |
2659 | |
3736 | |
2660 | EV_FREQUENT_CHECK; |
3737 | EV_FREQUENT_CHECK; |
2661 | } |
3738 | } |
2662 | |
3739 | |
2663 | void noinline |
3740 | void noinline |
2664 | ev_timer_start (EV_P_ ev_timer *w) |
3741 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
2665 | { |
3742 | { |
2666 | if (expect_false (ev_is_active (w))) |
3743 | if (expect_false (ev_is_active (w))) |
2667 | return; |
3744 | return; |
2668 | |
3745 | |
2669 | ev_at (w) += mn_now; |
3746 | ev_at (w) += mn_now; |
… | |
… | |
2683 | |
3760 | |
2684 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3761 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2685 | } |
3762 | } |
2686 | |
3763 | |
2687 | void noinline |
3764 | void noinline |
2688 | ev_timer_stop (EV_P_ ev_timer *w) |
3765 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
2689 | { |
3766 | { |
2690 | clear_pending (EV_A_ (W)w); |
3767 | clear_pending (EV_A_ (W)w); |
2691 | if (expect_false (!ev_is_active (w))) |
3768 | if (expect_false (!ev_is_active (w))) |
2692 | return; |
3769 | return; |
2693 | |
3770 | |
… | |
… | |
2713 | |
3790 | |
2714 | EV_FREQUENT_CHECK; |
3791 | EV_FREQUENT_CHECK; |
2715 | } |
3792 | } |
2716 | |
3793 | |
2717 | void noinline |
3794 | void noinline |
2718 | ev_timer_again (EV_P_ ev_timer *w) |
3795 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
2719 | { |
3796 | { |
2720 | EV_FREQUENT_CHECK; |
3797 | EV_FREQUENT_CHECK; |
|
|
3798 | |
|
|
3799 | clear_pending (EV_A_ (W)w); |
2721 | |
3800 | |
2722 | if (ev_is_active (w)) |
3801 | if (ev_is_active (w)) |
2723 | { |
3802 | { |
2724 | if (w->repeat) |
3803 | if (w->repeat) |
2725 | { |
3804 | { |
… | |
… | |
2738 | |
3817 | |
2739 | EV_FREQUENT_CHECK; |
3818 | EV_FREQUENT_CHECK; |
2740 | } |
3819 | } |
2741 | |
3820 | |
2742 | ev_tstamp |
3821 | ev_tstamp |
2743 | ev_timer_remaining (EV_P_ ev_timer *w) |
3822 | ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW |
2744 | { |
3823 | { |
2745 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3824 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
2746 | } |
3825 | } |
2747 | |
3826 | |
2748 | #if EV_PERIODIC_ENABLE |
3827 | #if EV_PERIODIC_ENABLE |
2749 | void noinline |
3828 | void noinline |
2750 | ev_periodic_start (EV_P_ ev_periodic *w) |
3829 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
2751 | { |
3830 | { |
2752 | if (expect_false (ev_is_active (w))) |
3831 | if (expect_false (ev_is_active (w))) |
2753 | return; |
3832 | return; |
2754 | |
3833 | |
2755 | if (w->reschedule_cb) |
3834 | if (w->reschedule_cb) |
2756 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3835 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2757 | else if (w->interval) |
3836 | else if (w->interval) |
2758 | { |
3837 | { |
2759 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
3838 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2760 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
3839 | periodic_recalc (EV_A_ w); |
2761 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2762 | } |
3840 | } |
2763 | else |
3841 | else |
2764 | ev_at (w) = w->offset; |
3842 | ev_at (w) = w->offset; |
2765 | |
3843 | |
2766 | EV_FREQUENT_CHECK; |
3844 | EV_FREQUENT_CHECK; |
… | |
… | |
2776 | |
3854 | |
2777 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3855 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2778 | } |
3856 | } |
2779 | |
3857 | |
2780 | void noinline |
3858 | void noinline |
2781 | ev_periodic_stop (EV_P_ ev_periodic *w) |
3859 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
2782 | { |
3860 | { |
2783 | clear_pending (EV_A_ (W)w); |
3861 | clear_pending (EV_A_ (W)w); |
2784 | if (expect_false (!ev_is_active (w))) |
3862 | if (expect_false (!ev_is_active (w))) |
2785 | return; |
3863 | return; |
2786 | |
3864 | |
… | |
… | |
2804 | |
3882 | |
2805 | EV_FREQUENT_CHECK; |
3883 | EV_FREQUENT_CHECK; |
2806 | } |
3884 | } |
2807 | |
3885 | |
2808 | void noinline |
3886 | void noinline |
2809 | ev_periodic_again (EV_P_ ev_periodic *w) |
3887 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
2810 | { |
3888 | { |
2811 | /* TODO: use adjustheap and recalculation */ |
3889 | /* TODO: use adjustheap and recalculation */ |
2812 | ev_periodic_stop (EV_A_ w); |
3890 | ev_periodic_stop (EV_A_ w); |
2813 | ev_periodic_start (EV_A_ w); |
3891 | ev_periodic_start (EV_A_ w); |
2814 | } |
3892 | } |
… | |
… | |
2819 | #endif |
3897 | #endif |
2820 | |
3898 | |
2821 | #if EV_SIGNAL_ENABLE |
3899 | #if EV_SIGNAL_ENABLE |
2822 | |
3900 | |
2823 | void noinline |
3901 | void noinline |
2824 | ev_signal_start (EV_P_ ev_signal *w) |
3902 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
2825 | { |
3903 | { |
2826 | if (expect_false (ev_is_active (w))) |
3904 | if (expect_false (ev_is_active (w))) |
2827 | return; |
3905 | return; |
2828 | |
3906 | |
2829 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
3907 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
… | |
… | |
2831 | #if EV_MULTIPLICITY |
3909 | #if EV_MULTIPLICITY |
2832 | assert (("libev: a signal must not be attached to two different loops", |
3910 | assert (("libev: a signal must not be attached to two different loops", |
2833 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
3911 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2834 | |
3912 | |
2835 | signals [w->signum - 1].loop = EV_A; |
3913 | signals [w->signum - 1].loop = EV_A; |
|
|
3914 | ECB_MEMORY_FENCE_RELEASE; |
2836 | #endif |
3915 | #endif |
2837 | |
3916 | |
2838 | EV_FREQUENT_CHECK; |
3917 | EV_FREQUENT_CHECK; |
2839 | |
3918 | |
2840 | #if EV_USE_SIGNALFD |
3919 | #if EV_USE_SIGNALFD |
… | |
… | |
2900 | |
3979 | |
2901 | EV_FREQUENT_CHECK; |
3980 | EV_FREQUENT_CHECK; |
2902 | } |
3981 | } |
2903 | |
3982 | |
2904 | void noinline |
3983 | void noinline |
2905 | ev_signal_stop (EV_P_ ev_signal *w) |
3984 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
2906 | { |
3985 | { |
2907 | clear_pending (EV_A_ (W)w); |
3986 | clear_pending (EV_A_ (W)w); |
2908 | if (expect_false (!ev_is_active (w))) |
3987 | if (expect_false (!ev_is_active (w))) |
2909 | return; |
3988 | return; |
2910 | |
3989 | |
… | |
… | |
2941 | #endif |
4020 | #endif |
2942 | |
4021 | |
2943 | #if EV_CHILD_ENABLE |
4022 | #if EV_CHILD_ENABLE |
2944 | |
4023 | |
2945 | void |
4024 | void |
2946 | ev_child_start (EV_P_ ev_child *w) |
4025 | ev_child_start (EV_P_ ev_child *w) EV_THROW |
2947 | { |
4026 | { |
2948 | #if EV_MULTIPLICITY |
4027 | #if EV_MULTIPLICITY |
2949 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
4028 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2950 | #endif |
4029 | #endif |
2951 | if (expect_false (ev_is_active (w))) |
4030 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2958 | |
4037 | |
2959 | EV_FREQUENT_CHECK; |
4038 | EV_FREQUENT_CHECK; |
2960 | } |
4039 | } |
2961 | |
4040 | |
2962 | void |
4041 | void |
2963 | ev_child_stop (EV_P_ ev_child *w) |
4042 | ev_child_stop (EV_P_ ev_child *w) EV_THROW |
2964 | { |
4043 | { |
2965 | clear_pending (EV_A_ (W)w); |
4044 | clear_pending (EV_A_ (W)w); |
2966 | if (expect_false (!ev_is_active (w))) |
4045 | if (expect_false (!ev_is_active (w))) |
2967 | return; |
4046 | return; |
2968 | |
4047 | |
… | |
… | |
2995 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
4074 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2996 | |
4075 | |
2997 | static void noinline |
4076 | static void noinline |
2998 | infy_add (EV_P_ ev_stat *w) |
4077 | infy_add (EV_P_ ev_stat *w) |
2999 | { |
4078 | { |
3000 | 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); |
4079 | w->wd = inotify_add_watch (fs_fd, w->path, |
|
|
4080 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
|
|
4081 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
|
|
4082 | | IN_DONT_FOLLOW | IN_MASK_ADD); |
3001 | |
4083 | |
3002 | if (w->wd >= 0) |
4084 | if (w->wd >= 0) |
3003 | { |
4085 | { |
3004 | struct statfs sfs; |
4086 | struct statfs sfs; |
3005 | |
4087 | |
… | |
… | |
3009 | |
4091 | |
3010 | if (!fs_2625) |
4092 | if (!fs_2625) |
3011 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
4093 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
3012 | else if (!statfs (w->path, &sfs) |
4094 | else if (!statfs (w->path, &sfs) |
3013 | && (sfs.f_type == 0x1373 /* devfs */ |
4095 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
4096 | || sfs.f_type == 0x4006 /* fat */ |
|
|
4097 | || sfs.f_type == 0x4d44 /* msdos */ |
3014 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
4098 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
4099 | || sfs.f_type == 0x72b6 /* jffs2 */ |
|
|
4100 | || sfs.f_type == 0x858458f6 /* ramfs */ |
|
|
4101 | || sfs.f_type == 0x5346544e /* ntfs */ |
3015 | || sfs.f_type == 0x3153464a /* jfs */ |
4102 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
4103 | || sfs.f_type == 0x9123683e /* btrfs */ |
3016 | || sfs.f_type == 0x52654973 /* reiser3 */ |
4104 | || sfs.f_type == 0x52654973 /* reiser3 */ |
3017 | || sfs.f_type == 0x01021994 /* tempfs */ |
4105 | || sfs.f_type == 0x01021994 /* tmpfs */ |
3018 | || sfs.f_type == 0x58465342 /* xfs */)) |
4106 | || sfs.f_type == 0x58465342 /* xfs */)) |
3019 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
4107 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
3020 | else |
4108 | else |
3021 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
4109 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
3022 | } |
4110 | } |
… | |
… | |
3043 | if (!pend || pend == path) |
4131 | if (!pend || pend == path) |
3044 | break; |
4132 | break; |
3045 | |
4133 | |
3046 | *pend = 0; |
4134 | *pend = 0; |
3047 | w->wd = inotify_add_watch (fs_fd, path, mask); |
4135 | w->wd = inotify_add_watch (fs_fd, path, mask); |
3048 | } |
4136 | } |
3049 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
4137 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
3050 | } |
4138 | } |
3051 | } |
4139 | } |
3052 | |
4140 | |
3053 | if (w->wd >= 0) |
4141 | if (w->wd >= 0) |
… | |
… | |
3120 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4208 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3121 | ofs += sizeof (struct inotify_event) + ev->len; |
4209 | ofs += sizeof (struct inotify_event) + ev->len; |
3122 | } |
4210 | } |
3123 | } |
4211 | } |
3124 | |
4212 | |
3125 | inline_size void |
4213 | inline_size void ecb_cold |
3126 | ev_check_2625 (EV_P) |
4214 | ev_check_2625 (EV_P) |
3127 | { |
4215 | { |
3128 | /* kernels < 2.6.25 are borked |
4216 | /* kernels < 2.6.25 are borked |
3129 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4217 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3130 | */ |
4218 | */ |
… | |
… | |
3135 | } |
4223 | } |
3136 | |
4224 | |
3137 | inline_size int |
4225 | inline_size int |
3138 | infy_newfd (void) |
4226 | infy_newfd (void) |
3139 | { |
4227 | { |
3140 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
4228 | #if defined IN_CLOEXEC && defined IN_NONBLOCK |
3141 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
4229 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
3142 | if (fd >= 0) |
4230 | if (fd >= 0) |
3143 | return fd; |
4231 | return fd; |
3144 | #endif |
4232 | #endif |
3145 | return inotify_init (); |
4233 | return inotify_init (); |
… | |
… | |
3220 | #else |
4308 | #else |
3221 | # define EV_LSTAT(p,b) lstat (p, b) |
4309 | # define EV_LSTAT(p,b) lstat (p, b) |
3222 | #endif |
4310 | #endif |
3223 | |
4311 | |
3224 | void |
4312 | void |
3225 | ev_stat_stat (EV_P_ ev_stat *w) |
4313 | ev_stat_stat (EV_P_ ev_stat *w) EV_THROW |
3226 | { |
4314 | { |
3227 | if (lstat (w->path, &w->attr) < 0) |
4315 | if (lstat (w->path, &w->attr) < 0) |
3228 | w->attr.st_nlink = 0; |
4316 | w->attr.st_nlink = 0; |
3229 | else if (!w->attr.st_nlink) |
4317 | else if (!w->attr.st_nlink) |
3230 | w->attr.st_nlink = 1; |
4318 | w->attr.st_nlink = 1; |
… | |
… | |
3269 | ev_feed_event (EV_A_ w, EV_STAT); |
4357 | ev_feed_event (EV_A_ w, EV_STAT); |
3270 | } |
4358 | } |
3271 | } |
4359 | } |
3272 | |
4360 | |
3273 | void |
4361 | void |
3274 | ev_stat_start (EV_P_ ev_stat *w) |
4362 | ev_stat_start (EV_P_ ev_stat *w) EV_THROW |
3275 | { |
4363 | { |
3276 | if (expect_false (ev_is_active (w))) |
4364 | if (expect_false (ev_is_active (w))) |
3277 | return; |
4365 | return; |
3278 | |
4366 | |
3279 | ev_stat_stat (EV_A_ w); |
4367 | ev_stat_stat (EV_A_ w); |
… | |
… | |
3300 | |
4388 | |
3301 | EV_FREQUENT_CHECK; |
4389 | EV_FREQUENT_CHECK; |
3302 | } |
4390 | } |
3303 | |
4391 | |
3304 | void |
4392 | void |
3305 | ev_stat_stop (EV_P_ ev_stat *w) |
4393 | ev_stat_stop (EV_P_ ev_stat *w) EV_THROW |
3306 | { |
4394 | { |
3307 | clear_pending (EV_A_ (W)w); |
4395 | clear_pending (EV_A_ (W)w); |
3308 | if (expect_false (!ev_is_active (w))) |
4396 | if (expect_false (!ev_is_active (w))) |
3309 | return; |
4397 | return; |
3310 | |
4398 | |
… | |
… | |
3326 | } |
4414 | } |
3327 | #endif |
4415 | #endif |
3328 | |
4416 | |
3329 | #if EV_IDLE_ENABLE |
4417 | #if EV_IDLE_ENABLE |
3330 | void |
4418 | void |
3331 | ev_idle_start (EV_P_ ev_idle *w) |
4419 | ev_idle_start (EV_P_ ev_idle *w) EV_THROW |
3332 | { |
4420 | { |
3333 | if (expect_false (ev_is_active (w))) |
4421 | if (expect_false (ev_is_active (w))) |
3334 | return; |
4422 | return; |
3335 | |
4423 | |
3336 | pri_adjust (EV_A_ (W)w); |
4424 | pri_adjust (EV_A_ (W)w); |
… | |
… | |
3349 | |
4437 | |
3350 | EV_FREQUENT_CHECK; |
4438 | EV_FREQUENT_CHECK; |
3351 | } |
4439 | } |
3352 | |
4440 | |
3353 | void |
4441 | void |
3354 | ev_idle_stop (EV_P_ ev_idle *w) |
4442 | ev_idle_stop (EV_P_ ev_idle *w) EV_THROW |
3355 | { |
4443 | { |
3356 | clear_pending (EV_A_ (W)w); |
4444 | clear_pending (EV_A_ (W)w); |
3357 | if (expect_false (!ev_is_active (w))) |
4445 | if (expect_false (!ev_is_active (w))) |
3358 | return; |
4446 | return; |
3359 | |
4447 | |
… | |
… | |
3373 | } |
4461 | } |
3374 | #endif |
4462 | #endif |
3375 | |
4463 | |
3376 | #if EV_PREPARE_ENABLE |
4464 | #if EV_PREPARE_ENABLE |
3377 | void |
4465 | void |
3378 | ev_prepare_start (EV_P_ ev_prepare *w) |
4466 | ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW |
3379 | { |
4467 | { |
3380 | if (expect_false (ev_is_active (w))) |
4468 | if (expect_false (ev_is_active (w))) |
3381 | return; |
4469 | return; |
3382 | |
4470 | |
3383 | EV_FREQUENT_CHECK; |
4471 | EV_FREQUENT_CHECK; |
… | |
… | |
3388 | |
4476 | |
3389 | EV_FREQUENT_CHECK; |
4477 | EV_FREQUENT_CHECK; |
3390 | } |
4478 | } |
3391 | |
4479 | |
3392 | void |
4480 | void |
3393 | ev_prepare_stop (EV_P_ ev_prepare *w) |
4481 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW |
3394 | { |
4482 | { |
3395 | clear_pending (EV_A_ (W)w); |
4483 | clear_pending (EV_A_ (W)w); |
3396 | if (expect_false (!ev_is_active (w))) |
4484 | if (expect_false (!ev_is_active (w))) |
3397 | return; |
4485 | return; |
3398 | |
4486 | |
… | |
… | |
3411 | } |
4499 | } |
3412 | #endif |
4500 | #endif |
3413 | |
4501 | |
3414 | #if EV_CHECK_ENABLE |
4502 | #if EV_CHECK_ENABLE |
3415 | void |
4503 | void |
3416 | ev_check_start (EV_P_ ev_check *w) |
4504 | ev_check_start (EV_P_ ev_check *w) EV_THROW |
3417 | { |
4505 | { |
3418 | if (expect_false (ev_is_active (w))) |
4506 | if (expect_false (ev_is_active (w))) |
3419 | return; |
4507 | return; |
3420 | |
4508 | |
3421 | EV_FREQUENT_CHECK; |
4509 | EV_FREQUENT_CHECK; |
… | |
… | |
3426 | |
4514 | |
3427 | EV_FREQUENT_CHECK; |
4515 | EV_FREQUENT_CHECK; |
3428 | } |
4516 | } |
3429 | |
4517 | |
3430 | void |
4518 | void |
3431 | ev_check_stop (EV_P_ ev_check *w) |
4519 | ev_check_stop (EV_P_ ev_check *w) EV_THROW |
3432 | { |
4520 | { |
3433 | clear_pending (EV_A_ (W)w); |
4521 | clear_pending (EV_A_ (W)w); |
3434 | if (expect_false (!ev_is_active (w))) |
4522 | if (expect_false (!ev_is_active (w))) |
3435 | return; |
4523 | return; |
3436 | |
4524 | |
… | |
… | |
3449 | } |
4537 | } |
3450 | #endif |
4538 | #endif |
3451 | |
4539 | |
3452 | #if EV_EMBED_ENABLE |
4540 | #if EV_EMBED_ENABLE |
3453 | void noinline |
4541 | void noinline |
3454 | ev_embed_sweep (EV_P_ ev_embed *w) |
4542 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
3455 | { |
4543 | { |
3456 | ev_run (w->other, EVRUN_NOWAIT); |
4544 | ev_run (w->other, EVRUN_NOWAIT); |
3457 | } |
4545 | } |
3458 | |
4546 | |
3459 | static void |
4547 | static void |
… | |
… | |
3507 | ev_idle_stop (EV_A_ idle); |
4595 | ev_idle_stop (EV_A_ idle); |
3508 | } |
4596 | } |
3509 | #endif |
4597 | #endif |
3510 | |
4598 | |
3511 | void |
4599 | void |
3512 | ev_embed_start (EV_P_ ev_embed *w) |
4600 | ev_embed_start (EV_P_ ev_embed *w) EV_THROW |
3513 | { |
4601 | { |
3514 | if (expect_false (ev_is_active (w))) |
4602 | if (expect_false (ev_is_active (w))) |
3515 | return; |
4603 | return; |
3516 | |
4604 | |
3517 | { |
4605 | { |
… | |
… | |
3538 | |
4626 | |
3539 | EV_FREQUENT_CHECK; |
4627 | EV_FREQUENT_CHECK; |
3540 | } |
4628 | } |
3541 | |
4629 | |
3542 | void |
4630 | void |
3543 | ev_embed_stop (EV_P_ ev_embed *w) |
4631 | ev_embed_stop (EV_P_ ev_embed *w) EV_THROW |
3544 | { |
4632 | { |
3545 | clear_pending (EV_A_ (W)w); |
4633 | clear_pending (EV_A_ (W)w); |
3546 | if (expect_false (!ev_is_active (w))) |
4634 | if (expect_false (!ev_is_active (w))) |
3547 | return; |
4635 | return; |
3548 | |
4636 | |
… | |
… | |
3558 | } |
4646 | } |
3559 | #endif |
4647 | #endif |
3560 | |
4648 | |
3561 | #if EV_FORK_ENABLE |
4649 | #if EV_FORK_ENABLE |
3562 | void |
4650 | void |
3563 | ev_fork_start (EV_P_ ev_fork *w) |
4651 | ev_fork_start (EV_P_ ev_fork *w) EV_THROW |
3564 | { |
4652 | { |
3565 | if (expect_false (ev_is_active (w))) |
4653 | if (expect_false (ev_is_active (w))) |
3566 | return; |
4654 | return; |
3567 | |
4655 | |
3568 | EV_FREQUENT_CHECK; |
4656 | EV_FREQUENT_CHECK; |
… | |
… | |
3573 | |
4661 | |
3574 | EV_FREQUENT_CHECK; |
4662 | EV_FREQUENT_CHECK; |
3575 | } |
4663 | } |
3576 | |
4664 | |
3577 | void |
4665 | void |
3578 | ev_fork_stop (EV_P_ ev_fork *w) |
4666 | ev_fork_stop (EV_P_ ev_fork *w) EV_THROW |
3579 | { |
4667 | { |
3580 | clear_pending (EV_A_ (W)w); |
4668 | clear_pending (EV_A_ (W)w); |
3581 | if (expect_false (!ev_is_active (w))) |
4669 | if (expect_false (!ev_is_active (w))) |
3582 | return; |
4670 | return; |
3583 | |
4671 | |
… | |
… | |
3596 | } |
4684 | } |
3597 | #endif |
4685 | #endif |
3598 | |
4686 | |
3599 | #if EV_CLEANUP_ENABLE |
4687 | #if EV_CLEANUP_ENABLE |
3600 | void |
4688 | void |
3601 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
4689 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW |
3602 | { |
4690 | { |
3603 | if (expect_false (ev_is_active (w))) |
4691 | if (expect_false (ev_is_active (w))) |
3604 | return; |
4692 | return; |
3605 | |
4693 | |
3606 | EV_FREQUENT_CHECK; |
4694 | EV_FREQUENT_CHECK; |
… | |
… | |
3613 | ev_unref (EV_A); |
4701 | ev_unref (EV_A); |
3614 | EV_FREQUENT_CHECK; |
4702 | EV_FREQUENT_CHECK; |
3615 | } |
4703 | } |
3616 | |
4704 | |
3617 | void |
4705 | void |
3618 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
4706 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW |
3619 | { |
4707 | { |
3620 | clear_pending (EV_A_ (W)w); |
4708 | clear_pending (EV_A_ (W)w); |
3621 | if (expect_false (!ev_is_active (w))) |
4709 | if (expect_false (!ev_is_active (w))) |
3622 | return; |
4710 | return; |
3623 | |
4711 | |
… | |
… | |
3637 | } |
4725 | } |
3638 | #endif |
4726 | #endif |
3639 | |
4727 | |
3640 | #if EV_ASYNC_ENABLE |
4728 | #if EV_ASYNC_ENABLE |
3641 | void |
4729 | void |
3642 | ev_async_start (EV_P_ ev_async *w) |
4730 | ev_async_start (EV_P_ ev_async *w) EV_THROW |
3643 | { |
4731 | { |
3644 | if (expect_false (ev_is_active (w))) |
4732 | if (expect_false (ev_is_active (w))) |
3645 | return; |
4733 | return; |
3646 | |
4734 | |
3647 | w->sent = 0; |
4735 | w->sent = 0; |
… | |
… | |
3656 | |
4744 | |
3657 | EV_FREQUENT_CHECK; |
4745 | EV_FREQUENT_CHECK; |
3658 | } |
4746 | } |
3659 | |
4747 | |
3660 | void |
4748 | void |
3661 | ev_async_stop (EV_P_ ev_async *w) |
4749 | ev_async_stop (EV_P_ ev_async *w) EV_THROW |
3662 | { |
4750 | { |
3663 | clear_pending (EV_A_ (W)w); |
4751 | clear_pending (EV_A_ (W)w); |
3664 | if (expect_false (!ev_is_active (w))) |
4752 | if (expect_false (!ev_is_active (w))) |
3665 | return; |
4753 | return; |
3666 | |
4754 | |
… | |
… | |
3677 | |
4765 | |
3678 | EV_FREQUENT_CHECK; |
4766 | EV_FREQUENT_CHECK; |
3679 | } |
4767 | } |
3680 | |
4768 | |
3681 | void |
4769 | void |
3682 | ev_async_send (EV_P_ ev_async *w) |
4770 | ev_async_send (EV_P_ ev_async *w) EV_THROW |
3683 | { |
4771 | { |
3684 | w->sent = 1; |
4772 | w->sent = 1; |
3685 | evpipe_write (EV_A_ &async_pending); |
4773 | evpipe_write (EV_A_ &async_pending); |
3686 | } |
4774 | } |
3687 | #endif |
4775 | #endif |
… | |
… | |
3724 | |
4812 | |
3725 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
4813 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
3726 | } |
4814 | } |
3727 | |
4815 | |
3728 | void |
4816 | void |
3729 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
4817 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW |
3730 | { |
4818 | { |
3731 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4819 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3732 | |
4820 | |
3733 | if (expect_false (!once)) |
4821 | if (expect_false (!once)) |
3734 | { |
4822 | { |
… | |
… | |
3755 | } |
4843 | } |
3756 | |
4844 | |
3757 | /*****************************************************************************/ |
4845 | /*****************************************************************************/ |
3758 | |
4846 | |
3759 | #if EV_WALK_ENABLE |
4847 | #if EV_WALK_ENABLE |
3760 | void |
4848 | void ecb_cold |
3761 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
4849 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
3762 | { |
4850 | { |
3763 | int i, j; |
4851 | int i, j; |
3764 | ev_watcher_list *wl, *wn; |
4852 | ev_watcher_list *wl, *wn; |
3765 | |
4853 | |
3766 | if (types & (EV_IO | EV_EMBED)) |
4854 | if (types & (EV_IO | EV_EMBED)) |
… | |
… | |
3809 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
4897 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
3810 | #endif |
4898 | #endif |
3811 | |
4899 | |
3812 | #if EV_IDLE_ENABLE |
4900 | #if EV_IDLE_ENABLE |
3813 | if (types & EV_IDLE) |
4901 | if (types & EV_IDLE) |
3814 | for (j = NUMPRI; i--; ) |
4902 | for (j = NUMPRI; j--; ) |
3815 | for (i = idlecnt [j]; i--; ) |
4903 | for (i = idlecnt [j]; i--; ) |
3816 | cb (EV_A_ EV_IDLE, idles [j][i]); |
4904 | cb (EV_A_ EV_IDLE, idles [j][i]); |
3817 | #endif |
4905 | #endif |
3818 | |
4906 | |
3819 | #if EV_FORK_ENABLE |
4907 | #if EV_FORK_ENABLE |
… | |
… | |
3872 | |
4960 | |
3873 | #if EV_MULTIPLICITY |
4961 | #if EV_MULTIPLICITY |
3874 | #include "ev_wrap.h" |
4962 | #include "ev_wrap.h" |
3875 | #endif |
4963 | #endif |
3876 | |
4964 | |
3877 | EV_CPP(}) |
|
|
3878 | |
|
|