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 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> |
… | |
… | |
205 | #define _DARWIN_UNLIMITED_SELECT 1 |
219 | #define _DARWIN_UNLIMITED_SELECT 1 |
206 | |
220 | |
207 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
221 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
208 | |
222 | |
209 | /* try to deduce the maximum number of signals on this platform */ |
223 | /* try to deduce the maximum number of signals on this platform */ |
210 | #if defined (EV_NSIG) |
224 | #if defined EV_NSIG |
211 | /* use what's provided */ |
225 | /* use what's provided */ |
212 | #elif defined (NSIG) |
226 | #elif defined NSIG |
213 | # define EV_NSIG (NSIG) |
227 | # define EV_NSIG (NSIG) |
214 | #elif defined(_NSIG) |
228 | #elif defined _NSIG |
215 | # define EV_NSIG (_NSIG) |
229 | # define EV_NSIG (_NSIG) |
216 | #elif defined (SIGMAX) |
230 | #elif defined SIGMAX |
217 | # define EV_NSIG (SIGMAX+1) |
231 | # define EV_NSIG (SIGMAX+1) |
218 | #elif defined (SIG_MAX) |
232 | #elif defined SIG_MAX |
219 | # define EV_NSIG (SIG_MAX+1) |
233 | # define EV_NSIG (SIG_MAX+1) |
220 | #elif defined (_SIG_MAX) |
234 | #elif defined _SIG_MAX |
221 | # define EV_NSIG (_SIG_MAX+1) |
235 | # define EV_NSIG (_SIG_MAX+1) |
222 | #elif defined (MAXSIG) |
236 | #elif defined MAXSIG |
223 | # define EV_NSIG (MAXSIG+1) |
237 | # define EV_NSIG (MAXSIG+1) |
224 | #elif defined (MAX_SIG) |
238 | #elif defined MAX_SIG |
225 | # define EV_NSIG (MAX_SIG+1) |
239 | # define EV_NSIG (MAX_SIG+1) |
226 | #elif defined (SIGARRAYSIZE) |
240 | #elif defined SIGARRAYSIZE |
227 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
241 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
228 | #elif defined (_sys_nsig) |
242 | #elif defined _sys_nsig |
229 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
243 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
230 | #else |
244 | #else |
231 | # error "unable to find value for NSIG, please report" |
245 | # error "unable to find value for NSIG, please report" |
232 | /* to make it compile regardless, just remove the above line, */ |
246 | /* to make it compile regardless, just remove the above line, */ |
233 | /* but consider reporting it, too! :) */ |
247 | /* but consider reporting it, too! :) */ |
234 | # define EV_NSIG 65 |
248 | # define EV_NSIG 65 |
235 | #endif |
249 | #endif |
236 | |
250 | |
|
|
251 | #ifndef EV_USE_FLOOR |
|
|
252 | # define EV_USE_FLOOR 0 |
|
|
253 | #endif |
|
|
254 | |
237 | #ifndef EV_USE_CLOCK_SYSCALL |
255 | #ifndef EV_USE_CLOCK_SYSCALL |
238 | # if __linux && __GLIBC__ >= 2 |
256 | # if __linux && __GLIBC__ >= 2 |
239 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
257 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
240 | # else |
258 | # else |
241 | # define EV_USE_CLOCK_SYSCALL 0 |
259 | # define EV_USE_CLOCK_SYSCALL 0 |
242 | # endif |
260 | # endif |
243 | #endif |
261 | #endif |
244 | |
262 | |
245 | #ifndef EV_USE_MONOTONIC |
263 | #ifndef EV_USE_MONOTONIC |
246 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
264 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
247 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
265 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
248 | # else |
266 | # else |
249 | # define EV_USE_MONOTONIC 0 |
267 | # define EV_USE_MONOTONIC 0 |
250 | # endif |
268 | # endif |
251 | #endif |
269 | #endif |
… | |
… | |
341 | #endif |
359 | #endif |
342 | |
360 | |
343 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
361 | /* 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. */ |
362 | /* which makes programs even slower. might work on other unices, too. */ |
345 | #if EV_USE_CLOCK_SYSCALL |
363 | #if EV_USE_CLOCK_SYSCALL |
346 | # include <syscall.h> |
364 | # include <sys/syscall.h> |
347 | # ifdef SYS_clock_gettime |
365 | # ifdef SYS_clock_gettime |
348 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
366 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
349 | # undef EV_USE_MONOTONIC |
367 | # undef EV_USE_MONOTONIC |
350 | # define EV_USE_MONOTONIC 1 |
368 | # define EV_USE_MONOTONIC 1 |
351 | # else |
369 | # else |
… | |
… | |
376 | # undef EV_USE_INOTIFY |
394 | # undef EV_USE_INOTIFY |
377 | # define EV_USE_INOTIFY 0 |
395 | # define EV_USE_INOTIFY 0 |
378 | #endif |
396 | #endif |
379 | |
397 | |
380 | #if !EV_USE_NANOSLEEP |
398 | #if !EV_USE_NANOSLEEP |
381 | # ifndef _WIN32 |
399 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
|
|
400 | # if !defined _WIN32 && !defined __hpux |
382 | # include <sys/select.h> |
401 | # include <sys/select.h> |
383 | # endif |
402 | # endif |
384 | #endif |
403 | #endif |
385 | |
404 | |
386 | #if EV_USE_INOTIFY |
405 | #if EV_USE_INOTIFY |
… | |
… | |
442 | #else |
461 | #else |
443 | # define EV_FREQUENT_CHECK do { } while (0) |
462 | # define EV_FREQUENT_CHECK do { } while (0) |
444 | #endif |
463 | #endif |
445 | |
464 | |
446 | /* |
465 | /* |
447 | * This is used to avoid floating point rounding problems. |
466 | * 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. |
467 | * This value is good at least till the year 4000. |
452 | * Better solutions welcome. |
|
|
453 | */ |
468 | */ |
454 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
469 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
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|
470 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
455 | |
471 | |
456 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
472 | #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) */ |
473 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
458 | |
474 | |
459 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
475 | #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) |
476 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
461 | |
477 | |
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|
478 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
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479 | /* ECB.H BEGIN */ |
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480 | /* |
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481 | * libecb - http://software.schmorp.de/pkg/libecb |
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482 | * |
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483 | * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> |
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484 | * Copyright (©) 2011 Emanuele Giaquinta |
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485 | * All rights reserved. |
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486 | * |
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487 | * Redistribution and use in source and binary forms, with or without modifica- |
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488 | * tion, are permitted provided that the following conditions are met: |
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489 | * |
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|
490 | * 1. Redistributions of source code must retain the above copyright notice, |
|
|
491 | * this list of conditions and the following disclaimer. |
|
|
492 | * |
|
|
493 | * 2. Redistributions in binary form must reproduce the above copyright |
|
|
494 | * notice, this list of conditions and the following disclaimer in the |
|
|
495 | * documentation and/or other materials provided with the distribution. |
|
|
496 | * |
|
|
497 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
|
|
498 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
|
|
499 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
|
|
500 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
|
|
501 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
|
|
502 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
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|
503 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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|
504 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
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|
505 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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|
506 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
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507 | */ |
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508 | |
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509 | #ifndef ECB_H |
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|
510 | #define ECB_H |
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511 | |
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512 | #ifdef _WIN32 |
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|
513 | typedef signed char int8_t; |
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514 | typedef unsigned char uint8_t; |
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515 | typedef signed short int16_t; |
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516 | typedef unsigned short uint16_t; |
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517 | typedef signed int int32_t; |
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518 | typedef unsigned int uint32_t; |
462 | #if __GNUC__ >= 4 |
519 | #if __GNUC__ |
463 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
520 | typedef signed long long int64_t; |
464 | # define noinline __attribute__ ((noinline)) |
521 | typedef unsigned long long uint64_t; |
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|
522 | #else /* _MSC_VER || __BORLANDC__ */ |
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|
523 | typedef signed __int64 int64_t; |
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|
524 | typedef unsigned __int64 uint64_t; |
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525 | #endif |
465 | #else |
526 | #else |
466 | # define expect(expr,value) (expr) |
527 | #include <inttypes.h> |
467 | # define noinline |
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|
468 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
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469 | # define inline |
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|
470 | # endif |
528 | #endif |
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529 | |
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530 | /* many compilers define _GNUC_ to some versions but then only implement |
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531 | * what their idiot authors think are the "more important" extensions, |
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532 | * causing enormous grief in return for some better fake benchmark numbers. |
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|
533 | * or so. |
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534 | * we try to detect these and simply assume they are not gcc - if they have |
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535 | * an issue with that they should have done it right in the first place. |
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536 | */ |
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|
537 | #ifndef ECB_GCC_VERSION |
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|
538 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
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539 | #define ECB_GCC_VERSION(major,minor) 0 |
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540 | #else |
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541 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
471 | #endif |
542 | #endif |
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|
543 | #endif |
472 | |
544 | |
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545 | /*****************************************************************************/ |
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546 | |
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547 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
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548 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
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549 | |
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550 | #if ECB_NO_THREADS |
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551 | # define ECB_NO_SMP 1 |
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|
552 | #endif |
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553 | |
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554 | #if ECB_NO_THREADS || ECB_NO_SMP |
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555 | #define ECB_MEMORY_FENCE do { } while (0) |
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556 | #endif |
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557 | |
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558 | #ifndef ECB_MEMORY_FENCE |
|
|
559 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
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560 | #if __i386 || __i386__ |
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561 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
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562 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ |
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563 | #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ |
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|
564 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
|
|
565 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
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566 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") |
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567 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ |
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568 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
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569 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
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570 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
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571 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
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572 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
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573 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
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574 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
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575 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
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576 | #elif __sparc || __sparc__ |
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577 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory") |
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578 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
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|
579 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
|
|
580 | #elif defined __s390__ || defined __s390x__ |
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581 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
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|
582 | #elif defined __mips__ |
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583 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
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|
584 | #elif defined __alpha__ |
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585 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
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|
586 | #endif |
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587 | #endif |
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588 | #endif |
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589 | |
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590 | #ifndef ECB_MEMORY_FENCE |
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|
591 | #if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
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|
592 | #define ECB_MEMORY_FENCE __sync_synchronize () |
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593 | /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ |
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594 | /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ |
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|
595 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
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596 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
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597 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
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598 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
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|
599 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
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600 | #elif defined _WIN32 |
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601 | #include <WinNT.h> |
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|
602 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
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|
603 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
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604 | #include <mbarrier.h> |
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|
605 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
|
|
606 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
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607 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
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|
608 | #elif __xlC__ |
|
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609 | #define ECB_MEMORY_FENCE __sync () |
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|
610 | #endif |
|
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611 | #endif |
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612 | |
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613 | #ifndef ECB_MEMORY_FENCE |
|
|
614 | #if !ECB_AVOID_PTHREADS |
|
|
615 | /* |
|
|
616 | * if you get undefined symbol references to pthread_mutex_lock, |
|
|
617 | * or failure to find pthread.h, then you should implement |
|
|
618 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
|
619 | * OR provide pthread.h and link against the posix thread library |
|
|
620 | * of your system. |
|
|
621 | */ |
|
|
622 | #include <pthread.h> |
|
|
623 | #define ECB_NEEDS_PTHREADS 1 |
|
|
624 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
|
|
625 | |
|
|
626 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
627 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
628 | #endif |
|
|
629 | #endif |
|
|
630 | |
|
|
631 | #if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE |
|
|
632 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
633 | #endif |
|
|
634 | |
|
|
635 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
|
|
636 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
637 | #endif |
|
|
638 | |
|
|
639 | /*****************************************************************************/ |
|
|
640 | |
|
|
641 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
|
|
642 | |
|
|
643 | #if __cplusplus |
|
|
644 | #define ecb_inline static inline |
|
|
645 | #elif ECB_GCC_VERSION(2,5) |
|
|
646 | #define ecb_inline static __inline__ |
|
|
647 | #elif ECB_C99 |
|
|
648 | #define ecb_inline static inline |
|
|
649 | #else |
|
|
650 | #define ecb_inline static |
|
|
651 | #endif |
|
|
652 | |
|
|
653 | #if ECB_GCC_VERSION(3,3) |
|
|
654 | #define ecb_restrict __restrict__ |
|
|
655 | #elif ECB_C99 |
|
|
656 | #define ecb_restrict restrict |
|
|
657 | #else |
|
|
658 | #define ecb_restrict |
|
|
659 | #endif |
|
|
660 | |
|
|
661 | typedef int ecb_bool; |
|
|
662 | |
|
|
663 | #define ECB_CONCAT_(a, b) a ## b |
|
|
664 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
665 | #define ECB_STRINGIFY_(a) # a |
|
|
666 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
667 | |
|
|
668 | #define ecb_function_ ecb_inline |
|
|
669 | |
|
|
670 | #if ECB_GCC_VERSION(3,1) |
|
|
671 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
|
|
672 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
673 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
674 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
675 | #else |
|
|
676 | #define ecb_attribute(attrlist) |
|
|
677 | #define ecb_is_constant(expr) 0 |
|
|
678 | #define ecb_expect(expr,value) (expr) |
|
|
679 | #define ecb_prefetch(addr,rw,locality) |
|
|
680 | #endif |
|
|
681 | |
|
|
682 | /* no emulation for ecb_decltype */ |
|
|
683 | #if ECB_GCC_VERSION(4,5) |
|
|
684 | #define ecb_decltype(x) __decltype(x) |
|
|
685 | #elif ECB_GCC_VERSION(3,0) |
|
|
686 | #define ecb_decltype(x) __typeof(x) |
|
|
687 | #endif |
|
|
688 | |
|
|
689 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
690 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
691 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
692 | #define ecb_const ecb_attribute ((__const__)) |
|
|
693 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
694 | |
|
|
695 | #if ECB_GCC_VERSION(4,3) |
|
|
696 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
697 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
698 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
699 | #else |
|
|
700 | #define ecb_artificial |
|
|
701 | #define ecb_hot |
|
|
702 | #define ecb_cold |
|
|
703 | #endif |
|
|
704 | |
|
|
705 | /* put around conditional expressions if you are very sure that the */ |
|
|
706 | /* expression is mostly true or mostly false. note that these return */ |
|
|
707 | /* booleans, not the expression. */ |
473 | #define expect_false(expr) expect ((expr) != 0, 0) |
708 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
474 | #define expect_true(expr) expect ((expr) != 0, 1) |
709 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
710 | /* for compatibility to the rest of the world */ |
|
|
711 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
712 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
|
|
713 | |
|
|
714 | /* count trailing zero bits and count # of one bits */ |
|
|
715 | #if ECB_GCC_VERSION(3,4) |
|
|
716 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
717 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
|
|
718 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
719 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
720 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
721 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
722 | /* no popcountll */ |
|
|
723 | #else |
|
|
724 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
|
|
725 | ecb_function_ int |
|
|
726 | ecb_ctz32 (uint32_t x) |
|
|
727 | { |
|
|
728 | int r = 0; |
|
|
729 | |
|
|
730 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
731 | |
|
|
732 | #if ECB_branchless_on_i386 |
|
|
733 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
734 | r += !!(x & 0xcccccccc) << 1; |
|
|
735 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
736 | r += !!(x & 0xff00ff00) << 3; |
|
|
737 | r += !!(x & 0xffff0000) << 4; |
|
|
738 | #else |
|
|
739 | if (x & 0xaaaaaaaa) r += 1; |
|
|
740 | if (x & 0xcccccccc) r += 2; |
|
|
741 | if (x & 0xf0f0f0f0) r += 4; |
|
|
742 | if (x & 0xff00ff00) r += 8; |
|
|
743 | if (x & 0xffff0000) r += 16; |
|
|
744 | #endif |
|
|
745 | |
|
|
746 | return r; |
|
|
747 | } |
|
|
748 | |
|
|
749 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
|
|
750 | ecb_function_ int |
|
|
751 | ecb_ctz64 (uint64_t x) |
|
|
752 | { |
|
|
753 | int shift = x & 0xffffffffU ? 0 : 32; |
|
|
754 | return ecb_ctz32 (x >> shift) + shift; |
|
|
755 | } |
|
|
756 | |
|
|
757 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
|
|
758 | ecb_function_ int |
|
|
759 | ecb_popcount32 (uint32_t x) |
|
|
760 | { |
|
|
761 | x -= (x >> 1) & 0x55555555; |
|
|
762 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
763 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
764 | x *= 0x01010101; |
|
|
765 | |
|
|
766 | return x >> 24; |
|
|
767 | } |
|
|
768 | |
|
|
769 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
|
|
770 | ecb_function_ int ecb_ld32 (uint32_t x) |
|
|
771 | { |
|
|
772 | int r = 0; |
|
|
773 | |
|
|
774 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
775 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
776 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
777 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
778 | if (x >> 1) { r += 1; } |
|
|
779 | |
|
|
780 | return r; |
|
|
781 | } |
|
|
782 | |
|
|
783 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
|
|
784 | ecb_function_ int ecb_ld64 (uint64_t x) |
|
|
785 | { |
|
|
786 | int r = 0; |
|
|
787 | |
|
|
788 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
789 | |
|
|
790 | return r + ecb_ld32 (x); |
|
|
791 | } |
|
|
792 | #endif |
|
|
793 | |
|
|
794 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
|
|
795 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
|
|
796 | { |
|
|
797 | return ( (x * 0x0802U & 0x22110U) |
|
|
798 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
|
|
799 | } |
|
|
800 | |
|
|
801 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
|
|
802 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
|
|
803 | { |
|
|
804 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
|
|
805 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
|
|
806 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
|
|
807 | x = ( x >> 8 ) | ( x << 8); |
|
|
808 | |
|
|
809 | return x; |
|
|
810 | } |
|
|
811 | |
|
|
812 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
|
|
813 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
|
|
814 | { |
|
|
815 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
|
|
816 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
|
|
817 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
|
|
818 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
|
|
819 | x = ( x >> 16 ) | ( x << 16); |
|
|
820 | |
|
|
821 | return x; |
|
|
822 | } |
|
|
823 | |
|
|
824 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
825 | /* so for this version we are lazy */ |
|
|
826 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
|
|
827 | ecb_function_ int |
|
|
828 | ecb_popcount64 (uint64_t x) |
|
|
829 | { |
|
|
830 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
831 | } |
|
|
832 | |
|
|
833 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
|
|
834 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
|
|
835 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
|
|
836 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
|
|
837 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
|
|
838 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
|
|
839 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
|
|
840 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
|
|
841 | |
|
|
842 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
|
|
843 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
|
|
844 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
|
|
845 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
|
|
846 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
|
|
847 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
|
|
848 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
|
|
849 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
|
|
850 | |
|
|
851 | #if ECB_GCC_VERSION(4,3) |
|
|
852 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
853 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
|
|
854 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
855 | #else |
|
|
856 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
|
|
857 | ecb_function_ uint16_t |
|
|
858 | ecb_bswap16 (uint16_t x) |
|
|
859 | { |
|
|
860 | return ecb_rotl16 (x, 8); |
|
|
861 | } |
|
|
862 | |
|
|
863 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
|
|
864 | ecb_function_ uint32_t |
|
|
865 | ecb_bswap32 (uint32_t x) |
|
|
866 | { |
|
|
867 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
|
|
868 | } |
|
|
869 | |
|
|
870 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
|
|
871 | ecb_function_ uint64_t |
|
|
872 | ecb_bswap64 (uint64_t x) |
|
|
873 | { |
|
|
874 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
|
|
875 | } |
|
|
876 | #endif |
|
|
877 | |
|
|
878 | #if ECB_GCC_VERSION(4,5) |
|
|
879 | #define ecb_unreachable() __builtin_unreachable () |
|
|
880 | #else |
|
|
881 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
882 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
|
|
883 | ecb_inline void ecb_unreachable (void) { } |
|
|
884 | #endif |
|
|
885 | |
|
|
886 | /* try to tell the compiler that some condition is definitely true */ |
|
|
887 | #define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) |
|
|
888 | |
|
|
889 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
|
|
890 | ecb_inline unsigned char |
|
|
891 | ecb_byteorder_helper (void) |
|
|
892 | { |
|
|
893 | const uint32_t u = 0x11223344; |
|
|
894 | return *(unsigned char *)&u; |
|
|
895 | } |
|
|
896 | |
|
|
897 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
|
|
898 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
|
|
899 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
|
|
900 | ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
|
|
901 | |
|
|
902 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
903 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
904 | #else |
|
|
905 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
906 | #endif |
|
|
907 | |
|
|
908 | #if __cplusplus |
|
|
909 | template<typename T> |
|
|
910 | static inline T ecb_div_rd (T val, T div) |
|
|
911 | { |
|
|
912 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
|
|
913 | } |
|
|
914 | template<typename T> |
|
|
915 | static inline T ecb_div_ru (T val, T div) |
|
|
916 | { |
|
|
917 | return val < 0 ? - ((-val ) / div) : (val + div - 1) / div; |
|
|
918 | } |
|
|
919 | #else |
|
|
920 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
|
|
921 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
|
|
922 | #endif |
|
|
923 | |
|
|
924 | #if ecb_cplusplus_does_not_suck |
|
|
925 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
926 | template<typename T, int N> |
|
|
927 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
928 | { |
|
|
929 | return N; |
|
|
930 | } |
|
|
931 | #else |
|
|
932 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
933 | #endif |
|
|
934 | |
|
|
935 | #endif |
|
|
936 | |
|
|
937 | /* ECB.H END */ |
|
|
938 | |
|
|
939 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
940 | /* if your architecture doesn't need memory fences, e.g. because it is |
|
|
941 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
|
|
942 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
|
|
943 | * libev, in which cases the memory fences become nops. |
|
|
944 | * alternatively, you can remove this #error and link against libpthread, |
|
|
945 | * which will then provide the memory fences. |
|
|
946 | */ |
|
|
947 | # error "memory fences not defined for your architecture, please report" |
|
|
948 | #endif |
|
|
949 | |
|
|
950 | #ifndef ECB_MEMORY_FENCE |
|
|
951 | # define ECB_MEMORY_FENCE do { } while (0) |
|
|
952 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
953 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
954 | #endif |
|
|
955 | |
|
|
956 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
957 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
958 | #define noinline ecb_noinline |
|
|
959 | |
475 | #define inline_size static inline |
960 | #define inline_size ecb_inline |
476 | |
961 | |
477 | #if EV_FEATURE_CODE |
962 | #if EV_FEATURE_CODE |
478 | # define inline_speed static inline |
963 | # define inline_speed ecb_inline |
479 | #else |
964 | #else |
480 | # define inline_speed static noinline |
965 | # define inline_speed static noinline |
481 | #endif |
966 | #endif |
482 | |
967 | |
483 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
968 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
… | |
… | |
522 | # include "ev_win32.c" |
1007 | # include "ev_win32.c" |
523 | #endif |
1008 | #endif |
524 | |
1009 | |
525 | /*****************************************************************************/ |
1010 | /*****************************************************************************/ |
526 | |
1011 | |
|
|
1012 | /* define a suitable floor function (only used by periodics atm) */ |
|
|
1013 | |
|
|
1014 | #if EV_USE_FLOOR |
|
|
1015 | # include <math.h> |
|
|
1016 | # define ev_floor(v) floor (v) |
|
|
1017 | #else |
|
|
1018 | |
|
|
1019 | #include <float.h> |
|
|
1020 | |
|
|
1021 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1022 | static ev_tstamp noinline |
|
|
1023 | ev_floor (ev_tstamp v) |
|
|
1024 | { |
|
|
1025 | /* the choice of shift factor is not terribly important */ |
|
|
1026 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
|
|
1027 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
|
|
1028 | #else |
|
|
1029 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
|
|
1030 | #endif |
|
|
1031 | |
|
|
1032 | /* argument too large for an unsigned long? */ |
|
|
1033 | if (expect_false (v >= shift)) |
|
|
1034 | { |
|
|
1035 | ev_tstamp f; |
|
|
1036 | |
|
|
1037 | if (v == v - 1.) |
|
|
1038 | return v; /* very large number */ |
|
|
1039 | |
|
|
1040 | f = shift * ev_floor (v * (1. / shift)); |
|
|
1041 | return f + ev_floor (v - f); |
|
|
1042 | } |
|
|
1043 | |
|
|
1044 | /* special treatment for negative args? */ |
|
|
1045 | if (expect_false (v < 0.)) |
|
|
1046 | { |
|
|
1047 | ev_tstamp f = -ev_floor (-v); |
|
|
1048 | |
|
|
1049 | return f - (f == v ? 0 : 1); |
|
|
1050 | } |
|
|
1051 | |
|
|
1052 | /* fits into an unsigned long */ |
|
|
1053 | return (unsigned long)v; |
|
|
1054 | } |
|
|
1055 | |
|
|
1056 | #endif |
|
|
1057 | |
|
|
1058 | /*****************************************************************************/ |
|
|
1059 | |
527 | #ifdef __linux |
1060 | #ifdef __linux |
528 | # include <sys/utsname.h> |
1061 | # include <sys/utsname.h> |
529 | #endif |
1062 | #endif |
530 | |
1063 | |
531 | static unsigned int noinline |
1064 | static unsigned int noinline ecb_cold |
532 | ev_linux_version (void) |
1065 | ev_linux_version (void) |
533 | { |
1066 | { |
534 | #ifdef __linux |
1067 | #ifdef __linux |
535 | unsigned int v = 0; |
1068 | unsigned int v = 0; |
536 | struct utsname buf; |
1069 | struct utsname buf; |
… | |
… | |
565 | } |
1098 | } |
566 | |
1099 | |
567 | /*****************************************************************************/ |
1100 | /*****************************************************************************/ |
568 | |
1101 | |
569 | #if EV_AVOID_STDIO |
1102 | #if EV_AVOID_STDIO |
570 | static void noinline |
1103 | static void noinline ecb_cold |
571 | ev_printerr (const char *msg) |
1104 | ev_printerr (const char *msg) |
572 | { |
1105 | { |
573 | write (STDERR_FILENO, msg, strlen (msg)); |
1106 | write (STDERR_FILENO, msg, strlen (msg)); |
574 | } |
1107 | } |
575 | #endif |
1108 | #endif |
576 | |
1109 | |
577 | static void (*syserr_cb)(const char *msg); |
1110 | static void (*syserr_cb)(const char *msg) EV_THROW; |
578 | |
1111 | |
579 | void |
1112 | void ecb_cold |
580 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1113 | ev_set_syserr_cb (void (*cb)(const char *msg)) EV_THROW |
581 | { |
1114 | { |
582 | syserr_cb = cb; |
1115 | syserr_cb = cb; |
583 | } |
1116 | } |
584 | |
1117 | |
585 | static void noinline |
1118 | static void noinline ecb_cold |
586 | ev_syserr (const char *msg) |
1119 | ev_syserr (const char *msg) |
587 | { |
1120 | { |
588 | if (!msg) |
1121 | if (!msg) |
589 | msg = "(libev) system error"; |
1122 | msg = "(libev) system error"; |
590 | |
1123 | |
… | |
… | |
621 | free (ptr); |
1154 | free (ptr); |
622 | return 0; |
1155 | return 0; |
623 | #endif |
1156 | #endif |
624 | } |
1157 | } |
625 | |
1158 | |
626 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1159 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
627 | |
1160 | |
628 | void |
1161 | void ecb_cold |
629 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1162 | ev_set_allocator (void *(*cb)(void *ptr, long size)) EV_THROW |
630 | { |
1163 | { |
631 | alloc = cb; |
1164 | alloc = cb; |
632 | } |
1165 | } |
633 | |
1166 | |
634 | inline_speed void * |
1167 | inline_speed void * |
… | |
… | |
722 | #undef VAR |
1255 | #undef VAR |
723 | }; |
1256 | }; |
724 | #include "ev_wrap.h" |
1257 | #include "ev_wrap.h" |
725 | |
1258 | |
726 | static struct ev_loop default_loop_struct; |
1259 | static struct ev_loop default_loop_struct; |
727 | struct ev_loop *ev_default_loop_ptr; |
1260 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
728 | |
1261 | |
729 | #else |
1262 | #else |
730 | |
1263 | |
731 | ev_tstamp ev_rt_now; |
1264 | 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; |
1265 | #define VAR(name,decl) static decl; |
733 | #include "ev_vars.h" |
1266 | #include "ev_vars.h" |
734 | #undef VAR |
1267 | #undef VAR |
735 | |
1268 | |
736 | static int ev_default_loop_ptr; |
1269 | static int ev_default_loop_ptr; |
… | |
… | |
751 | |
1284 | |
752 | /*****************************************************************************/ |
1285 | /*****************************************************************************/ |
753 | |
1286 | |
754 | #ifndef EV_HAVE_EV_TIME |
1287 | #ifndef EV_HAVE_EV_TIME |
755 | ev_tstamp |
1288 | ev_tstamp |
756 | ev_time (void) |
1289 | ev_time (void) EV_THROW |
757 | { |
1290 | { |
758 | #if EV_USE_REALTIME |
1291 | #if EV_USE_REALTIME |
759 | if (expect_true (have_realtime)) |
1292 | if (expect_true (have_realtime)) |
760 | { |
1293 | { |
761 | struct timespec ts; |
1294 | struct timespec ts; |
… | |
… | |
785 | return ev_time (); |
1318 | return ev_time (); |
786 | } |
1319 | } |
787 | |
1320 | |
788 | #if EV_MULTIPLICITY |
1321 | #if EV_MULTIPLICITY |
789 | ev_tstamp |
1322 | ev_tstamp |
790 | ev_now (EV_P) |
1323 | ev_now (EV_P) EV_THROW |
791 | { |
1324 | { |
792 | return ev_rt_now; |
1325 | return ev_rt_now; |
793 | } |
1326 | } |
794 | #endif |
1327 | #endif |
795 | |
1328 | |
796 | void |
1329 | void |
797 | ev_sleep (ev_tstamp delay) |
1330 | ev_sleep (ev_tstamp delay) EV_THROW |
798 | { |
1331 | { |
799 | if (delay > 0.) |
1332 | if (delay > 0.) |
800 | { |
1333 | { |
801 | #if EV_USE_NANOSLEEP |
1334 | #if EV_USE_NANOSLEEP |
802 | struct timespec ts; |
1335 | struct timespec ts; |
803 | |
1336 | |
804 | EV_TS_SET (ts, delay); |
1337 | EV_TS_SET (ts, delay); |
805 | nanosleep (&ts, 0); |
1338 | nanosleep (&ts, 0); |
806 | #elif defined(_WIN32) |
1339 | #elif defined _WIN32 |
807 | Sleep ((unsigned long)(delay * 1e3)); |
1340 | Sleep ((unsigned long)(delay * 1e3)); |
808 | #else |
1341 | #else |
809 | struct timeval tv; |
1342 | struct timeval tv; |
810 | |
1343 | |
811 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
1344 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
… | |
… | |
815 | select (0, 0, 0, 0, &tv); |
1348 | select (0, 0, 0, 0, &tv); |
816 | #endif |
1349 | #endif |
817 | } |
1350 | } |
818 | } |
1351 | } |
819 | |
1352 | |
820 | inline_speed int |
|
|
821 | ev_timeout_to_ms (ev_tstamp timeout) |
|
|
822 | { |
|
|
823 | int ms = timeout * 1000. + .999999; |
|
|
824 | |
|
|
825 | return expect_true (ms) ? ms : timeout < 1e-6 ? 0 : 1; |
|
|
826 | } |
|
|
827 | |
|
|
828 | /*****************************************************************************/ |
1353 | /*****************************************************************************/ |
829 | |
1354 | |
830 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
1355 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
831 | |
1356 | |
832 | /* find a suitable new size for the given array, */ |
1357 | /* find a suitable new size for the given array, */ |
… | |
… | |
838 | |
1363 | |
839 | do |
1364 | do |
840 | ncur <<= 1; |
1365 | ncur <<= 1; |
841 | while (cnt > ncur); |
1366 | while (cnt > ncur); |
842 | |
1367 | |
843 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
1368 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
844 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
1369 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
845 | { |
1370 | { |
846 | ncur *= elem; |
1371 | ncur *= elem; |
847 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
1372 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
848 | ncur = ncur - sizeof (void *) * 4; |
1373 | ncur = ncur - sizeof (void *) * 4; |
… | |
… | |
850 | } |
1375 | } |
851 | |
1376 | |
852 | return ncur; |
1377 | return ncur; |
853 | } |
1378 | } |
854 | |
1379 | |
855 | static noinline void * |
1380 | static void * noinline ecb_cold |
856 | array_realloc (int elem, void *base, int *cur, int cnt) |
1381 | array_realloc (int elem, void *base, int *cur, int cnt) |
857 | { |
1382 | { |
858 | *cur = array_nextsize (elem, *cur, cnt); |
1383 | *cur = array_nextsize (elem, *cur, cnt); |
859 | return ev_realloc (base, elem * *cur); |
1384 | return ev_realloc (base, elem * *cur); |
860 | } |
1385 | } |
… | |
… | |
863 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1388 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
864 | |
1389 | |
865 | #define array_needsize(type,base,cur,cnt,init) \ |
1390 | #define array_needsize(type,base,cur,cnt,init) \ |
866 | if (expect_false ((cnt) > (cur))) \ |
1391 | if (expect_false ((cnt) > (cur))) \ |
867 | { \ |
1392 | { \ |
868 | int ocur_ = (cur); \ |
1393 | int ecb_unused ocur_ = (cur); \ |
869 | (base) = (type *)array_realloc \ |
1394 | (base) = (type *)array_realloc \ |
870 | (sizeof (type), (base), &(cur), (cnt)); \ |
1395 | (sizeof (type), (base), &(cur), (cnt)); \ |
871 | init ((base) + (ocur_), (cur) - ocur_); \ |
1396 | init ((base) + (ocur_), (cur) - ocur_); \ |
872 | } |
1397 | } |
873 | |
1398 | |
… | |
… | |
891 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1416 | pendingcb (EV_P_ ev_prepare *w, int revents) |
892 | { |
1417 | { |
893 | } |
1418 | } |
894 | |
1419 | |
895 | void noinline |
1420 | void noinline |
896 | ev_feed_event (EV_P_ void *w, int revents) |
1421 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
897 | { |
1422 | { |
898 | W w_ = (W)w; |
1423 | W w_ = (W)w; |
899 | int pri = ABSPRI (w_); |
1424 | int pri = ABSPRI (w_); |
900 | |
1425 | |
901 | if (expect_false (w_->pending)) |
1426 | if (expect_false (w_->pending)) |
… | |
… | |
960 | if (expect_true (!anfd->reify)) |
1485 | if (expect_true (!anfd->reify)) |
961 | fd_event_nocheck (EV_A_ fd, revents); |
1486 | fd_event_nocheck (EV_A_ fd, revents); |
962 | } |
1487 | } |
963 | |
1488 | |
964 | void |
1489 | void |
965 | ev_feed_fd_event (EV_P_ int fd, int revents) |
1490 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW |
966 | { |
1491 | { |
967 | if (fd >= 0 && fd < anfdmax) |
1492 | if (fd >= 0 && fd < anfdmax) |
968 | fd_event_nocheck (EV_A_ fd, revents); |
1493 | fd_event_nocheck (EV_A_ fd, revents); |
969 | } |
1494 | } |
970 | |
1495 | |
… | |
… | |
973 | inline_size void |
1498 | inline_size void |
974 | fd_reify (EV_P) |
1499 | fd_reify (EV_P) |
975 | { |
1500 | { |
976 | int i; |
1501 | int i; |
977 | |
1502 | |
|
|
1503 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
1504 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1505 | { |
|
|
1506 | int fd = fdchanges [i]; |
|
|
1507 | ANFD *anfd = anfds + fd; |
|
|
1508 | |
|
|
1509 | if (anfd->reify & EV__IOFDSET && anfd->head) |
|
|
1510 | { |
|
|
1511 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
1512 | |
|
|
1513 | if (handle != anfd->handle) |
|
|
1514 | { |
|
|
1515 | unsigned long arg; |
|
|
1516 | |
|
|
1517 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0)); |
|
|
1518 | |
|
|
1519 | /* handle changed, but fd didn't - we need to do it in two steps */ |
|
|
1520 | backend_modify (EV_A_ fd, anfd->events, 0); |
|
|
1521 | anfd->events = 0; |
|
|
1522 | anfd->handle = handle; |
|
|
1523 | } |
|
|
1524 | } |
|
|
1525 | } |
|
|
1526 | #endif |
|
|
1527 | |
978 | for (i = 0; i < fdchangecnt; ++i) |
1528 | for (i = 0; i < fdchangecnt; ++i) |
979 | { |
1529 | { |
980 | int fd = fdchanges [i]; |
1530 | int fd = fdchanges [i]; |
981 | ANFD *anfd = anfds + fd; |
1531 | ANFD *anfd = anfds + fd; |
982 | ev_io *w; |
1532 | ev_io *w; |
… | |
… | |
984 | unsigned char o_events = anfd->events; |
1534 | unsigned char o_events = anfd->events; |
985 | unsigned char o_reify = anfd->reify; |
1535 | unsigned char o_reify = anfd->reify; |
986 | |
1536 | |
987 | anfd->reify = 0; |
1537 | anfd->reify = 0; |
988 | |
1538 | |
989 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
990 | if (o_reify & EV__IOFDSET) |
|
|
991 | { |
|
|
992 | unsigned long arg; |
|
|
993 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
994 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
|
|
995 | printf ("oi %d %x\n", fd, anfd->handle);//D |
|
|
996 | } |
|
|
997 | #endif |
|
|
998 | |
|
|
999 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
1539 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
1000 | { |
1540 | { |
1001 | anfd->events = 0; |
1541 | anfd->events = 0; |
1002 | |
1542 | |
1003 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1543 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
1028 | fdchanges [fdchangecnt - 1] = fd; |
1568 | fdchanges [fdchangecnt - 1] = fd; |
1029 | } |
1569 | } |
1030 | } |
1570 | } |
1031 | |
1571 | |
1032 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1572 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1033 | inline_speed void |
1573 | inline_speed void ecb_cold |
1034 | fd_kill (EV_P_ int fd) |
1574 | fd_kill (EV_P_ int fd) |
1035 | { |
1575 | { |
1036 | ev_io *w; |
1576 | ev_io *w; |
1037 | |
1577 | |
1038 | while ((w = (ev_io *)anfds [fd].head)) |
1578 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
1041 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1581 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1042 | } |
1582 | } |
1043 | } |
1583 | } |
1044 | |
1584 | |
1045 | /* check whether the given fd is actually valid, for error recovery */ |
1585 | /* check whether the given fd is actually valid, for error recovery */ |
1046 | inline_size int |
1586 | inline_size int ecb_cold |
1047 | fd_valid (int fd) |
1587 | fd_valid (int fd) |
1048 | { |
1588 | { |
1049 | #ifdef _WIN32 |
1589 | #ifdef _WIN32 |
1050 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1590 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1051 | #else |
1591 | #else |
1052 | return fcntl (fd, F_GETFD) != -1; |
1592 | return fcntl (fd, F_GETFD) != -1; |
1053 | #endif |
1593 | #endif |
1054 | } |
1594 | } |
1055 | |
1595 | |
1056 | /* called on EBADF to verify fds */ |
1596 | /* called on EBADF to verify fds */ |
1057 | static void noinline |
1597 | static void noinline ecb_cold |
1058 | fd_ebadf (EV_P) |
1598 | fd_ebadf (EV_P) |
1059 | { |
1599 | { |
1060 | int fd; |
1600 | int fd; |
1061 | |
1601 | |
1062 | for (fd = 0; fd < anfdmax; ++fd) |
1602 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1064 | if (!fd_valid (fd) && errno == EBADF) |
1604 | if (!fd_valid (fd) && errno == EBADF) |
1065 | fd_kill (EV_A_ fd); |
1605 | fd_kill (EV_A_ fd); |
1066 | } |
1606 | } |
1067 | |
1607 | |
1068 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1608 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1069 | static void noinline |
1609 | static void noinline ecb_cold |
1070 | fd_enomem (EV_P) |
1610 | fd_enomem (EV_P) |
1071 | { |
1611 | { |
1072 | int fd; |
1612 | int fd; |
1073 | |
1613 | |
1074 | for (fd = anfdmax; fd--; ) |
1614 | for (fd = anfdmax; fd--; ) |
… | |
… | |
1269 | |
1809 | |
1270 | /*****************************************************************************/ |
1810 | /*****************************************************************************/ |
1271 | |
1811 | |
1272 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1812 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1273 | |
1813 | |
1274 | static void noinline |
1814 | static void noinline ecb_cold |
1275 | evpipe_init (EV_P) |
1815 | evpipe_init (EV_P) |
1276 | { |
1816 | { |
1277 | if (!ev_is_active (&pipe_w)) |
1817 | if (!ev_is_active (&pipe_w)) |
1278 | { |
1818 | { |
1279 | # if EV_USE_EVENTFD |
1819 | # if EV_USE_EVENTFD |
… | |
… | |
1301 | ev_io_start (EV_A_ &pipe_w); |
1841 | ev_io_start (EV_A_ &pipe_w); |
1302 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1842 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1303 | } |
1843 | } |
1304 | } |
1844 | } |
1305 | |
1845 | |
1306 | inline_size void |
1846 | inline_speed void |
1307 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1847 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1308 | { |
1848 | { |
1309 | if (!*flag) |
1849 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
|
|
1850 | |
|
|
1851 | if (expect_true (*flag)) |
|
|
1852 | return; |
|
|
1853 | |
|
|
1854 | *flag = 1; |
|
|
1855 | |
|
|
1856 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
1857 | |
|
|
1858 | pipe_write_skipped = 1; |
|
|
1859 | |
|
|
1860 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
1861 | |
|
|
1862 | if (pipe_write_wanted) |
1310 | { |
1863 | { |
|
|
1864 | int old_errno; |
|
|
1865 | |
|
|
1866 | pipe_write_skipped = 0; /* just an optimisation, no fence needed */ |
|
|
1867 | |
1311 | int old_errno = errno; /* save errno because write might clobber it */ |
1868 | old_errno = errno; /* save errno because write will clobber it */ |
1312 | char dummy; |
|
|
1313 | |
|
|
1314 | *flag = 1; |
|
|
1315 | |
1869 | |
1316 | #if EV_USE_EVENTFD |
1870 | #if EV_USE_EVENTFD |
1317 | if (evfd >= 0) |
1871 | if (evfd >= 0) |
1318 | { |
1872 | { |
1319 | uint64_t counter = 1; |
1873 | uint64_t counter = 1; |
1320 | write (evfd, &counter, sizeof (uint64_t)); |
1874 | write (evfd, &counter, sizeof (uint64_t)); |
1321 | } |
1875 | } |
1322 | else |
1876 | else |
1323 | #endif |
1877 | #endif |
|
|
1878 | { |
1324 | /* win32 people keep sending patches that change this write() to send() */ |
1879 | /* win32 people keep sending patches that change this write() to send() */ |
1325 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
1880 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
1326 | /* so when you think this write should be a send instead, please find out */ |
1881 | /* so when you think this write should be a send instead, please find out */ |
1327 | /* where your send() is from - it's definitely not the microsoft send, and */ |
1882 | /* where your send() is from - it's definitely not the microsoft send, and */ |
1328 | /* tell me. thank you. */ |
1883 | /* tell me. thank you. */ |
|
|
1884 | /* it might be that your problem is that your environment needs EV_USE_WSASOCKET */ |
|
|
1885 | /* check the ev documentation on how to use this flag */ |
1329 | write (evpipe [1], &dummy, 1); |
1886 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
1887 | } |
1330 | |
1888 | |
1331 | errno = old_errno; |
1889 | errno = old_errno; |
1332 | } |
1890 | } |
1333 | } |
1891 | } |
1334 | |
1892 | |
… | |
… | |
1337 | static void |
1895 | static void |
1338 | pipecb (EV_P_ ev_io *iow, int revents) |
1896 | pipecb (EV_P_ ev_io *iow, int revents) |
1339 | { |
1897 | { |
1340 | int i; |
1898 | int i; |
1341 | |
1899 | |
|
|
1900 | if (revents & EV_READ) |
|
|
1901 | { |
1342 | #if EV_USE_EVENTFD |
1902 | #if EV_USE_EVENTFD |
1343 | if (evfd >= 0) |
1903 | if (evfd >= 0) |
1344 | { |
1904 | { |
1345 | uint64_t counter; |
1905 | uint64_t counter; |
1346 | read (evfd, &counter, sizeof (uint64_t)); |
1906 | read (evfd, &counter, sizeof (uint64_t)); |
1347 | } |
1907 | } |
1348 | else |
1908 | else |
1349 | #endif |
1909 | #endif |
1350 | { |
1910 | { |
1351 | char dummy; |
1911 | char dummy; |
1352 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
1912 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
1353 | read (evpipe [0], &dummy, 1); |
1913 | read (evpipe [0], &dummy, 1); |
|
|
1914 | } |
1354 | } |
1915 | } |
|
|
1916 | |
|
|
1917 | pipe_write_skipped = 0; |
|
|
1918 | |
|
|
1919 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
1355 | |
1920 | |
1356 | #if EV_SIGNAL_ENABLE |
1921 | #if EV_SIGNAL_ENABLE |
1357 | if (sig_pending) |
1922 | if (sig_pending) |
1358 | { |
1923 | { |
1359 | sig_pending = 0; |
1924 | sig_pending = 0; |
|
|
1925 | |
|
|
1926 | ECB_MEMORY_FENCE_RELEASE; |
1360 | |
1927 | |
1361 | for (i = EV_NSIG - 1; i--; ) |
1928 | for (i = EV_NSIG - 1; i--; ) |
1362 | if (expect_false (signals [i].pending)) |
1929 | if (expect_false (signals [i].pending)) |
1363 | ev_feed_signal_event (EV_A_ i + 1); |
1930 | ev_feed_signal_event (EV_A_ i + 1); |
1364 | } |
1931 | } |
… | |
… | |
1366 | |
1933 | |
1367 | #if EV_ASYNC_ENABLE |
1934 | #if EV_ASYNC_ENABLE |
1368 | if (async_pending) |
1935 | if (async_pending) |
1369 | { |
1936 | { |
1370 | async_pending = 0; |
1937 | async_pending = 0; |
|
|
1938 | |
|
|
1939 | ECB_MEMORY_FENCE_RELEASE; |
1371 | |
1940 | |
1372 | for (i = asynccnt; i--; ) |
1941 | for (i = asynccnt; i--; ) |
1373 | if (asyncs [i]->sent) |
1942 | if (asyncs [i]->sent) |
1374 | { |
1943 | { |
1375 | asyncs [i]->sent = 0; |
1944 | asyncs [i]->sent = 0; |
… | |
… | |
1380 | } |
1949 | } |
1381 | |
1950 | |
1382 | /*****************************************************************************/ |
1951 | /*****************************************************************************/ |
1383 | |
1952 | |
1384 | void |
1953 | void |
1385 | ev_feed_signal (int signum) |
1954 | ev_feed_signal (int signum) EV_THROW |
1386 | { |
1955 | { |
1387 | #if EV_MULTIPLICITY |
1956 | #if EV_MULTIPLICITY |
1388 | EV_P = signals [signum - 1].loop; |
1957 | EV_P = signals [signum - 1].loop; |
1389 | |
1958 | |
1390 | if (!EV_A) |
1959 | if (!EV_A) |
1391 | return; |
1960 | return; |
1392 | #endif |
1961 | #endif |
1393 | |
1962 | |
|
|
1963 | if (!ev_active (&pipe_w)) |
|
|
1964 | return; |
|
|
1965 | |
1394 | signals [signum - 1].pending = 1; |
1966 | signals [signum - 1].pending = 1; |
1395 | evpipe_write (EV_A_ &sig_pending); |
1967 | evpipe_write (EV_A_ &sig_pending); |
1396 | } |
1968 | } |
1397 | |
1969 | |
1398 | static void |
1970 | static void |
… | |
… | |
1404 | |
1976 | |
1405 | ev_feed_signal (signum); |
1977 | ev_feed_signal (signum); |
1406 | } |
1978 | } |
1407 | |
1979 | |
1408 | void noinline |
1980 | void noinline |
1409 | ev_feed_signal_event (EV_P_ int signum) |
1981 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
1410 | { |
1982 | { |
1411 | WL w; |
1983 | WL w; |
1412 | |
1984 | |
1413 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
1985 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
1414 | return; |
1986 | return; |
… | |
… | |
1529 | #endif |
2101 | #endif |
1530 | #if EV_USE_SELECT |
2102 | #if EV_USE_SELECT |
1531 | # include "ev_select.c" |
2103 | # include "ev_select.c" |
1532 | #endif |
2104 | #endif |
1533 | |
2105 | |
1534 | int |
2106 | int ecb_cold |
1535 | ev_version_major (void) |
2107 | ev_version_major (void) EV_THROW |
1536 | { |
2108 | { |
1537 | return EV_VERSION_MAJOR; |
2109 | return EV_VERSION_MAJOR; |
1538 | } |
2110 | } |
1539 | |
2111 | |
1540 | int |
2112 | int ecb_cold |
1541 | ev_version_minor (void) |
2113 | ev_version_minor (void) EV_THROW |
1542 | { |
2114 | { |
1543 | return EV_VERSION_MINOR; |
2115 | return EV_VERSION_MINOR; |
1544 | } |
2116 | } |
1545 | |
2117 | |
1546 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2118 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1547 | int inline_size |
2119 | int inline_size ecb_cold |
1548 | enable_secure (void) |
2120 | enable_secure (void) |
1549 | { |
2121 | { |
1550 | #ifdef _WIN32 |
2122 | #ifdef _WIN32 |
1551 | return 0; |
2123 | return 0; |
1552 | #else |
2124 | #else |
1553 | return getuid () != geteuid () |
2125 | return getuid () != geteuid () |
1554 | || getgid () != getegid (); |
2126 | || getgid () != getegid (); |
1555 | #endif |
2127 | #endif |
1556 | } |
2128 | } |
1557 | |
2129 | |
1558 | unsigned int |
2130 | unsigned int ecb_cold |
1559 | ev_supported_backends (void) |
2131 | ev_supported_backends (void) EV_THROW |
1560 | { |
2132 | { |
1561 | unsigned int flags = 0; |
2133 | unsigned int flags = 0; |
1562 | |
2134 | |
1563 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2135 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
1564 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2136 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
… | |
… | |
1567 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2139 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
1568 | |
2140 | |
1569 | return flags; |
2141 | return flags; |
1570 | } |
2142 | } |
1571 | |
2143 | |
1572 | unsigned int |
2144 | unsigned int ecb_cold |
1573 | ev_recommended_backends (void) |
2145 | ev_recommended_backends (void) EV_THROW |
1574 | { |
2146 | { |
1575 | unsigned int flags = ev_supported_backends (); |
2147 | unsigned int flags = ev_supported_backends (); |
1576 | |
2148 | |
1577 | #ifndef __NetBSD__ |
2149 | #ifndef __NetBSD__ |
1578 | /* kqueue is borked on everything but netbsd apparently */ |
2150 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
1589 | #endif |
2161 | #endif |
1590 | |
2162 | |
1591 | return flags; |
2163 | return flags; |
1592 | } |
2164 | } |
1593 | |
2165 | |
1594 | unsigned int |
2166 | unsigned int ecb_cold |
1595 | ev_embeddable_backends (void) |
2167 | ev_embeddable_backends (void) EV_THROW |
1596 | { |
2168 | { |
1597 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2169 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1598 | |
2170 | |
1599 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2171 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1600 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
2172 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
… | |
… | |
1602 | |
2174 | |
1603 | return flags; |
2175 | return flags; |
1604 | } |
2176 | } |
1605 | |
2177 | |
1606 | unsigned int |
2178 | unsigned int |
1607 | ev_backend (EV_P) |
2179 | ev_backend (EV_P) EV_THROW |
1608 | { |
2180 | { |
1609 | return backend; |
2181 | return backend; |
1610 | } |
2182 | } |
1611 | |
2183 | |
1612 | #if EV_FEATURE_API |
2184 | #if EV_FEATURE_API |
1613 | unsigned int |
2185 | unsigned int |
1614 | ev_iteration (EV_P) |
2186 | ev_iteration (EV_P) EV_THROW |
1615 | { |
2187 | { |
1616 | return loop_count; |
2188 | return loop_count; |
1617 | } |
2189 | } |
1618 | |
2190 | |
1619 | unsigned int |
2191 | unsigned int |
1620 | ev_depth (EV_P) |
2192 | ev_depth (EV_P) EV_THROW |
1621 | { |
2193 | { |
1622 | return loop_depth; |
2194 | return loop_depth; |
1623 | } |
2195 | } |
1624 | |
2196 | |
1625 | void |
2197 | void |
1626 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
2198 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1627 | { |
2199 | { |
1628 | io_blocktime = interval; |
2200 | io_blocktime = interval; |
1629 | } |
2201 | } |
1630 | |
2202 | |
1631 | void |
2203 | void |
1632 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
2204 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1633 | { |
2205 | { |
1634 | timeout_blocktime = interval; |
2206 | timeout_blocktime = interval; |
1635 | } |
2207 | } |
1636 | |
2208 | |
1637 | void |
2209 | void |
1638 | ev_set_userdata (EV_P_ void *data) |
2210 | ev_set_userdata (EV_P_ void *data) EV_THROW |
1639 | { |
2211 | { |
1640 | userdata = data; |
2212 | userdata = data; |
1641 | } |
2213 | } |
1642 | |
2214 | |
1643 | void * |
2215 | void * |
1644 | ev_userdata (EV_P) |
2216 | ev_userdata (EV_P) EV_THROW |
1645 | { |
2217 | { |
1646 | return userdata; |
2218 | return userdata; |
1647 | } |
2219 | } |
1648 | |
2220 | |
|
|
2221 | void |
1649 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
2222 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW |
1650 | { |
2223 | { |
1651 | invoke_cb = invoke_pending_cb; |
2224 | invoke_cb = invoke_pending_cb; |
1652 | } |
2225 | } |
1653 | |
2226 | |
|
|
2227 | void |
1654 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
2228 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW |
1655 | { |
2229 | { |
1656 | release_cb = release; |
2230 | release_cb = release; |
1657 | acquire_cb = acquire; |
2231 | acquire_cb = acquire; |
1658 | } |
2232 | } |
1659 | #endif |
2233 | #endif |
1660 | |
2234 | |
1661 | /* initialise a loop structure, must be zero-initialised */ |
2235 | /* initialise a loop structure, must be zero-initialised */ |
1662 | static void noinline |
2236 | static void noinline ecb_cold |
1663 | loop_init (EV_P_ unsigned int flags) |
2237 | loop_init (EV_P_ unsigned int flags) EV_THROW |
1664 | { |
2238 | { |
1665 | if (!backend) |
2239 | if (!backend) |
1666 | { |
2240 | { |
1667 | origflags = flags; |
2241 | origflags = flags; |
1668 | |
2242 | |
… | |
… | |
1695 | if (!(flags & EVFLAG_NOENV) |
2269 | if (!(flags & EVFLAG_NOENV) |
1696 | && !enable_secure () |
2270 | && !enable_secure () |
1697 | && getenv ("LIBEV_FLAGS")) |
2271 | && getenv ("LIBEV_FLAGS")) |
1698 | flags = atoi (getenv ("LIBEV_FLAGS")); |
2272 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1699 | |
2273 | |
1700 | ev_rt_now = ev_time (); |
2274 | ev_rt_now = ev_time (); |
1701 | mn_now = get_clock (); |
2275 | mn_now = get_clock (); |
1702 | now_floor = mn_now; |
2276 | now_floor = mn_now; |
1703 | rtmn_diff = ev_rt_now - mn_now; |
2277 | rtmn_diff = ev_rt_now - mn_now; |
1704 | #if EV_FEATURE_API |
2278 | #if EV_FEATURE_API |
1705 | invoke_cb = ev_invoke_pending; |
2279 | invoke_cb = ev_invoke_pending; |
1706 | #endif |
2280 | #endif |
1707 | |
2281 | |
1708 | io_blocktime = 0.; |
2282 | io_blocktime = 0.; |
1709 | timeout_blocktime = 0.; |
2283 | timeout_blocktime = 0.; |
1710 | backend = 0; |
2284 | backend = 0; |
1711 | backend_fd = -1; |
2285 | backend_fd = -1; |
1712 | sig_pending = 0; |
2286 | sig_pending = 0; |
1713 | #if EV_ASYNC_ENABLE |
2287 | #if EV_ASYNC_ENABLE |
1714 | async_pending = 0; |
2288 | async_pending = 0; |
1715 | #endif |
2289 | #endif |
|
|
2290 | pipe_write_skipped = 0; |
|
|
2291 | pipe_write_wanted = 0; |
1716 | #if EV_USE_INOTIFY |
2292 | #if EV_USE_INOTIFY |
1717 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2293 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1718 | #endif |
2294 | #endif |
1719 | #if EV_USE_SIGNALFD |
2295 | #if EV_USE_SIGNALFD |
1720 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
2296 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1721 | #endif |
2297 | #endif |
1722 | |
2298 | |
1723 | if (!(flags & EVBACKEND_MASK)) |
2299 | if (!(flags & EVBACKEND_MASK)) |
1724 | flags |= ev_recommended_backends (); |
2300 | flags |= ev_recommended_backends (); |
1725 | |
2301 | |
… | |
… | |
1750 | #endif |
2326 | #endif |
1751 | } |
2327 | } |
1752 | } |
2328 | } |
1753 | |
2329 | |
1754 | /* free up a loop structure */ |
2330 | /* free up a loop structure */ |
1755 | void |
2331 | void ecb_cold |
1756 | ev_loop_destroy (EV_P) |
2332 | ev_loop_destroy (EV_P) |
1757 | { |
2333 | { |
1758 | int i; |
2334 | int i; |
1759 | |
2335 | |
1760 | #if EV_MULTIPLICITY |
2336 | #if EV_MULTIPLICITY |
… | |
… | |
1890 | infy_fork (EV_A); |
2466 | infy_fork (EV_A); |
1891 | #endif |
2467 | #endif |
1892 | |
2468 | |
1893 | if (ev_is_active (&pipe_w)) |
2469 | if (ev_is_active (&pipe_w)) |
1894 | { |
2470 | { |
1895 | /* this "locks" the handlers against writing to the pipe */ |
2471 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
1896 | /* while we modify the fd vars */ |
|
|
1897 | sig_pending = 1; |
|
|
1898 | #if EV_ASYNC_ENABLE |
|
|
1899 | async_pending = 1; |
|
|
1900 | #endif |
|
|
1901 | |
2472 | |
1902 | ev_ref (EV_A); |
2473 | ev_ref (EV_A); |
1903 | ev_io_stop (EV_A_ &pipe_w); |
2474 | ev_io_stop (EV_A_ &pipe_w); |
1904 | |
2475 | |
1905 | #if EV_USE_EVENTFD |
2476 | #if EV_USE_EVENTFD |
… | |
… | |
1923 | postfork = 0; |
2494 | postfork = 0; |
1924 | } |
2495 | } |
1925 | |
2496 | |
1926 | #if EV_MULTIPLICITY |
2497 | #if EV_MULTIPLICITY |
1927 | |
2498 | |
1928 | struct ev_loop * |
2499 | struct ev_loop * ecb_cold |
1929 | ev_loop_new (unsigned int flags) |
2500 | ev_loop_new (unsigned int flags) EV_THROW |
1930 | { |
2501 | { |
1931 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2502 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1932 | |
2503 | |
1933 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2504 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1934 | loop_init (EV_A_ flags); |
2505 | loop_init (EV_A_ flags); |
… | |
… | |
1941 | } |
2512 | } |
1942 | |
2513 | |
1943 | #endif /* multiplicity */ |
2514 | #endif /* multiplicity */ |
1944 | |
2515 | |
1945 | #if EV_VERIFY |
2516 | #if EV_VERIFY |
1946 | static void noinline |
2517 | static void noinline ecb_cold |
1947 | verify_watcher (EV_P_ W w) |
2518 | verify_watcher (EV_P_ W w) |
1948 | { |
2519 | { |
1949 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2520 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1950 | |
2521 | |
1951 | if (w->pending) |
2522 | if (w->pending) |
1952 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2523 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1953 | } |
2524 | } |
1954 | |
2525 | |
1955 | static void noinline |
2526 | static void noinline ecb_cold |
1956 | verify_heap (EV_P_ ANHE *heap, int N) |
2527 | verify_heap (EV_P_ ANHE *heap, int N) |
1957 | { |
2528 | { |
1958 | int i; |
2529 | int i; |
1959 | |
2530 | |
1960 | for (i = HEAP0; i < N + HEAP0; ++i) |
2531 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
1965 | |
2536 | |
1966 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2537 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1967 | } |
2538 | } |
1968 | } |
2539 | } |
1969 | |
2540 | |
1970 | static void noinline |
2541 | static void noinline ecb_cold |
1971 | array_verify (EV_P_ W *ws, int cnt) |
2542 | array_verify (EV_P_ W *ws, int cnt) |
1972 | { |
2543 | { |
1973 | while (cnt--) |
2544 | while (cnt--) |
1974 | { |
2545 | { |
1975 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
2546 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
… | |
… | |
1977 | } |
2548 | } |
1978 | } |
2549 | } |
1979 | #endif |
2550 | #endif |
1980 | |
2551 | |
1981 | #if EV_FEATURE_API |
2552 | #if EV_FEATURE_API |
1982 | void |
2553 | void ecb_cold |
1983 | ev_verify (EV_P) |
2554 | ev_verify (EV_P) EV_THROW |
1984 | { |
2555 | { |
1985 | #if EV_VERIFY |
2556 | #if EV_VERIFY |
1986 | int i; |
2557 | int i; |
1987 | WL w; |
2558 | WL w; |
1988 | |
2559 | |
… | |
… | |
2053 | #endif |
2624 | #endif |
2054 | } |
2625 | } |
2055 | #endif |
2626 | #endif |
2056 | |
2627 | |
2057 | #if EV_MULTIPLICITY |
2628 | #if EV_MULTIPLICITY |
2058 | struct ev_loop * |
2629 | struct ev_loop * ecb_cold |
2059 | #else |
2630 | #else |
2060 | int |
2631 | int |
2061 | #endif |
2632 | #endif |
2062 | ev_default_loop (unsigned int flags) |
2633 | ev_default_loop (unsigned int flags) EV_THROW |
2063 | { |
2634 | { |
2064 | if (!ev_default_loop_ptr) |
2635 | if (!ev_default_loop_ptr) |
2065 | { |
2636 | { |
2066 | #if EV_MULTIPLICITY |
2637 | #if EV_MULTIPLICITY |
2067 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
2638 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
2086 | |
2657 | |
2087 | return ev_default_loop_ptr; |
2658 | return ev_default_loop_ptr; |
2088 | } |
2659 | } |
2089 | |
2660 | |
2090 | void |
2661 | void |
2091 | ev_loop_fork (EV_P) |
2662 | ev_loop_fork (EV_P) EV_THROW |
2092 | { |
2663 | { |
2093 | postfork = 1; /* must be in line with ev_default_fork */ |
2664 | postfork = 1; /* must be in line with ev_default_fork */ |
2094 | } |
2665 | } |
2095 | |
2666 | |
2096 | /*****************************************************************************/ |
2667 | /*****************************************************************************/ |
… | |
… | |
2100 | { |
2671 | { |
2101 | EV_CB_INVOKE ((W)w, revents); |
2672 | EV_CB_INVOKE ((W)w, revents); |
2102 | } |
2673 | } |
2103 | |
2674 | |
2104 | unsigned int |
2675 | unsigned int |
2105 | ev_pending_count (EV_P) |
2676 | ev_pending_count (EV_P) EV_THROW |
2106 | { |
2677 | { |
2107 | int pri; |
2678 | int pri; |
2108 | unsigned int count = 0; |
2679 | unsigned int count = 0; |
2109 | |
2680 | |
2110 | for (pri = NUMPRI; pri--; ) |
2681 | for (pri = NUMPRI; pri--; ) |
… | |
… | |
2191 | feed_reverse_done (EV_A_ EV_TIMER); |
2762 | feed_reverse_done (EV_A_ EV_TIMER); |
2192 | } |
2763 | } |
2193 | } |
2764 | } |
2194 | |
2765 | |
2195 | #if EV_PERIODIC_ENABLE |
2766 | #if EV_PERIODIC_ENABLE |
|
|
2767 | |
|
|
2768 | static void noinline |
|
|
2769 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
2770 | { |
|
|
2771 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
|
|
2772 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
|
|
2773 | |
|
|
2774 | /* the above almost always errs on the low side */ |
|
|
2775 | while (at <= ev_rt_now) |
|
|
2776 | { |
|
|
2777 | ev_tstamp nat = at + w->interval; |
|
|
2778 | |
|
|
2779 | /* when resolution fails us, we use ev_rt_now */ |
|
|
2780 | if (expect_false (nat == at)) |
|
|
2781 | { |
|
|
2782 | at = ev_rt_now; |
|
|
2783 | break; |
|
|
2784 | } |
|
|
2785 | |
|
|
2786 | at = nat; |
|
|
2787 | } |
|
|
2788 | |
|
|
2789 | ev_at (w) = at; |
|
|
2790 | } |
|
|
2791 | |
2196 | /* make periodics pending */ |
2792 | /* make periodics pending */ |
2197 | inline_size void |
2793 | inline_size void |
2198 | periodics_reify (EV_P) |
2794 | periodics_reify (EV_P) |
2199 | { |
2795 | { |
2200 | EV_FREQUENT_CHECK; |
2796 | EV_FREQUENT_CHECK; |
… | |
… | |
2219 | ANHE_at_cache (periodics [HEAP0]); |
2815 | ANHE_at_cache (periodics [HEAP0]); |
2220 | downheap (periodics, periodiccnt, HEAP0); |
2816 | downheap (periodics, periodiccnt, HEAP0); |
2221 | } |
2817 | } |
2222 | else if (w->interval) |
2818 | else if (w->interval) |
2223 | { |
2819 | { |
2224 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2820 | periodic_recalc (EV_A_ w); |
2225 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2226 | /* this might happen because of floating point inexactness */ |
|
|
2227 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2228 | { |
|
|
2229 | ev_at (w) += w->interval; |
|
|
2230 | |
|
|
2231 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2232 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2233 | /* has effectively asked to get triggered more often than possible */ |
|
|
2234 | if (ev_at (w) < ev_rt_now) |
|
|
2235 | ev_at (w) = ev_rt_now; |
|
|
2236 | } |
|
|
2237 | |
|
|
2238 | ANHE_at_cache (periodics [HEAP0]); |
2821 | ANHE_at_cache (periodics [HEAP0]); |
2239 | downheap (periodics, periodiccnt, HEAP0); |
2822 | downheap (periodics, periodiccnt, HEAP0); |
2240 | } |
2823 | } |
2241 | else |
2824 | else |
2242 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
2825 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
… | |
… | |
2250 | } |
2833 | } |
2251 | } |
2834 | } |
2252 | |
2835 | |
2253 | /* simply recalculate all periodics */ |
2836 | /* simply recalculate all periodics */ |
2254 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2837 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2255 | static void noinline |
2838 | static void noinline ecb_cold |
2256 | periodics_reschedule (EV_P) |
2839 | periodics_reschedule (EV_P) |
2257 | { |
2840 | { |
2258 | int i; |
2841 | int i; |
2259 | |
2842 | |
2260 | /* adjust periodics after time jump */ |
2843 | /* adjust periodics after time jump */ |
… | |
… | |
2263 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
2846 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
2264 | |
2847 | |
2265 | if (w->reschedule_cb) |
2848 | if (w->reschedule_cb) |
2266 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2849 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2267 | else if (w->interval) |
2850 | else if (w->interval) |
2268 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2851 | periodic_recalc (EV_A_ w); |
2269 | |
2852 | |
2270 | ANHE_at_cache (periodics [i]); |
2853 | ANHE_at_cache (periodics [i]); |
2271 | } |
2854 | } |
2272 | |
2855 | |
2273 | reheap (periodics, periodiccnt); |
2856 | reheap (periodics, periodiccnt); |
2274 | } |
2857 | } |
2275 | #endif |
2858 | #endif |
2276 | |
2859 | |
2277 | /* adjust all timers by a given offset */ |
2860 | /* adjust all timers by a given offset */ |
2278 | static void noinline |
2861 | static void noinline ecb_cold |
2279 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2862 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2280 | { |
2863 | { |
2281 | int i; |
2864 | int i; |
2282 | |
2865 | |
2283 | for (i = 0; i < timercnt; ++i) |
2866 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
2320 | * doesn't hurt either as we only do this on time-jumps or |
2903 | * doesn't hurt either as we only do this on time-jumps or |
2321 | * in the unlikely event of having been preempted here. |
2904 | * in the unlikely event of having been preempted here. |
2322 | */ |
2905 | */ |
2323 | for (i = 4; --i; ) |
2906 | for (i = 4; --i; ) |
2324 | { |
2907 | { |
|
|
2908 | ev_tstamp diff; |
2325 | rtmn_diff = ev_rt_now - mn_now; |
2909 | rtmn_diff = ev_rt_now - mn_now; |
2326 | |
2910 | |
|
|
2911 | diff = odiff - rtmn_diff; |
|
|
2912 | |
2327 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
2913 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
2328 | return; /* all is well */ |
2914 | return; /* all is well */ |
2329 | |
2915 | |
2330 | ev_rt_now = ev_time (); |
2916 | ev_rt_now = ev_time (); |
2331 | mn_now = get_clock (); |
2917 | mn_now = get_clock (); |
2332 | now_floor = mn_now; |
2918 | now_floor = mn_now; |
… | |
… | |
2354 | |
2940 | |
2355 | mn_now = ev_rt_now; |
2941 | mn_now = ev_rt_now; |
2356 | } |
2942 | } |
2357 | } |
2943 | } |
2358 | |
2944 | |
2359 | void |
2945 | int |
2360 | ev_run (EV_P_ int flags) |
2946 | ev_run (EV_P_ int flags) |
2361 | { |
2947 | { |
2362 | #if EV_FEATURE_API |
2948 | #if EV_FEATURE_API |
2363 | ++loop_depth; |
2949 | ++loop_depth; |
2364 | #endif |
2950 | #endif |
… | |
… | |
2422 | ev_tstamp prev_mn_now = mn_now; |
3008 | ev_tstamp prev_mn_now = mn_now; |
2423 | |
3009 | |
2424 | /* update time to cancel out callback processing overhead */ |
3010 | /* update time to cancel out callback processing overhead */ |
2425 | time_update (EV_A_ 1e100); |
3011 | time_update (EV_A_ 1e100); |
2426 | |
3012 | |
|
|
3013 | /* from now on, we want a pipe-wake-up */ |
|
|
3014 | pipe_write_wanted = 1; |
|
|
3015 | |
|
|
3016 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
3017 | |
2427 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt))) |
3018 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
2428 | { |
3019 | { |
2429 | waittime = MAX_BLOCKTIME; |
3020 | waittime = MAX_BLOCKTIME; |
2430 | |
3021 | |
2431 | if (timercnt) |
3022 | if (timercnt) |
2432 | { |
3023 | { |
2433 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
3024 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
2434 | if (waittime > to) waittime = to; |
3025 | if (waittime > to) waittime = to; |
2435 | } |
3026 | } |
2436 | |
3027 | |
2437 | #if EV_PERIODIC_ENABLE |
3028 | #if EV_PERIODIC_ENABLE |
2438 | if (periodiccnt) |
3029 | if (periodiccnt) |
2439 | { |
3030 | { |
2440 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
3031 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now; |
2441 | if (waittime > to) waittime = to; |
3032 | if (waittime > to) waittime = to; |
2442 | } |
3033 | } |
2443 | #endif |
3034 | #endif |
2444 | |
3035 | |
2445 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3036 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2446 | if (expect_false (waittime < timeout_blocktime)) |
3037 | if (expect_false (waittime < timeout_blocktime)) |
2447 | waittime = timeout_blocktime; |
3038 | waittime = timeout_blocktime; |
|
|
3039 | |
|
|
3040 | /* at this point, we NEED to wait, so we have to ensure */ |
|
|
3041 | /* to pass a minimum nonzero value to the backend */ |
|
|
3042 | if (expect_false (waittime < backend_mintime)) |
|
|
3043 | waittime = backend_mintime; |
2448 | |
3044 | |
2449 | /* extra check because io_blocktime is commonly 0 */ |
3045 | /* extra check because io_blocktime is commonly 0 */ |
2450 | if (expect_false (io_blocktime)) |
3046 | if (expect_false (io_blocktime)) |
2451 | { |
3047 | { |
2452 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
3048 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
2453 | |
3049 | |
2454 | if (sleeptime > waittime - backend_fudge) |
3050 | if (sleeptime > waittime - backend_mintime) |
2455 | sleeptime = waittime - backend_fudge; |
3051 | sleeptime = waittime - backend_mintime; |
2456 | |
3052 | |
2457 | if (expect_true (sleeptime > 0.)) |
3053 | if (expect_true (sleeptime > 0.)) |
2458 | { |
3054 | { |
2459 | ev_sleep (sleeptime); |
3055 | ev_sleep (sleeptime); |
2460 | waittime -= sleeptime; |
3056 | waittime -= sleeptime; |
… | |
… | |
2467 | #endif |
3063 | #endif |
2468 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
3064 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2469 | backend_poll (EV_A_ waittime); |
3065 | backend_poll (EV_A_ waittime); |
2470 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
3066 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
2471 | |
3067 | |
|
|
3068 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
|
|
3069 | |
|
|
3070 | if (pipe_write_skipped) |
|
|
3071 | { |
|
|
3072 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
3073 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
3074 | } |
|
|
3075 | |
|
|
3076 | |
2472 | /* update ev_rt_now, do magic */ |
3077 | /* update ev_rt_now, do magic */ |
2473 | time_update (EV_A_ waittime + sleeptime); |
3078 | time_update (EV_A_ waittime + sleeptime); |
2474 | } |
3079 | } |
2475 | |
3080 | |
2476 | /* queue pending timers and reschedule them */ |
3081 | /* queue pending timers and reschedule them */ |
… | |
… | |
2502 | loop_done = EVBREAK_CANCEL; |
3107 | loop_done = EVBREAK_CANCEL; |
2503 | |
3108 | |
2504 | #if EV_FEATURE_API |
3109 | #if EV_FEATURE_API |
2505 | --loop_depth; |
3110 | --loop_depth; |
2506 | #endif |
3111 | #endif |
|
|
3112 | |
|
|
3113 | return activecnt; |
2507 | } |
3114 | } |
2508 | |
3115 | |
2509 | void |
3116 | void |
2510 | ev_break (EV_P_ int how) |
3117 | ev_break (EV_P_ int how) EV_THROW |
2511 | { |
3118 | { |
2512 | loop_done = how; |
3119 | loop_done = how; |
2513 | } |
3120 | } |
2514 | |
3121 | |
2515 | void |
3122 | void |
2516 | ev_ref (EV_P) |
3123 | ev_ref (EV_P) EV_THROW |
2517 | { |
3124 | { |
2518 | ++activecnt; |
3125 | ++activecnt; |
2519 | } |
3126 | } |
2520 | |
3127 | |
2521 | void |
3128 | void |
2522 | ev_unref (EV_P) |
3129 | ev_unref (EV_P) EV_THROW |
2523 | { |
3130 | { |
2524 | --activecnt; |
3131 | --activecnt; |
2525 | } |
3132 | } |
2526 | |
3133 | |
2527 | void |
3134 | void |
2528 | ev_now_update (EV_P) |
3135 | ev_now_update (EV_P) EV_THROW |
2529 | { |
3136 | { |
2530 | time_update (EV_A_ 1e100); |
3137 | time_update (EV_A_ 1e100); |
2531 | } |
3138 | } |
2532 | |
3139 | |
2533 | void |
3140 | void |
2534 | ev_suspend (EV_P) |
3141 | ev_suspend (EV_P) EV_THROW |
2535 | { |
3142 | { |
2536 | ev_now_update (EV_A); |
3143 | ev_now_update (EV_A); |
2537 | } |
3144 | } |
2538 | |
3145 | |
2539 | void |
3146 | void |
2540 | ev_resume (EV_P) |
3147 | ev_resume (EV_P) EV_THROW |
2541 | { |
3148 | { |
2542 | ev_tstamp mn_prev = mn_now; |
3149 | ev_tstamp mn_prev = mn_now; |
2543 | |
3150 | |
2544 | ev_now_update (EV_A); |
3151 | ev_now_update (EV_A); |
2545 | timers_reschedule (EV_A_ mn_now - mn_prev); |
3152 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
2584 | w->pending = 0; |
3191 | w->pending = 0; |
2585 | } |
3192 | } |
2586 | } |
3193 | } |
2587 | |
3194 | |
2588 | int |
3195 | int |
2589 | ev_clear_pending (EV_P_ void *w) |
3196 | ev_clear_pending (EV_P_ void *w) EV_THROW |
2590 | { |
3197 | { |
2591 | W w_ = (W)w; |
3198 | W w_ = (W)w; |
2592 | int pending = w_->pending; |
3199 | int pending = w_->pending; |
2593 | |
3200 | |
2594 | if (expect_true (pending)) |
3201 | if (expect_true (pending)) |
… | |
… | |
2627 | } |
3234 | } |
2628 | |
3235 | |
2629 | /*****************************************************************************/ |
3236 | /*****************************************************************************/ |
2630 | |
3237 | |
2631 | void noinline |
3238 | void noinline |
2632 | ev_io_start (EV_P_ ev_io *w) |
3239 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
2633 | { |
3240 | { |
2634 | int fd = w->fd; |
3241 | int fd = w->fd; |
2635 | |
3242 | |
2636 | if (expect_false (ev_is_active (w))) |
3243 | if (expect_false (ev_is_active (w))) |
2637 | return; |
3244 | return; |
… | |
… | |
2650 | |
3257 | |
2651 | EV_FREQUENT_CHECK; |
3258 | EV_FREQUENT_CHECK; |
2652 | } |
3259 | } |
2653 | |
3260 | |
2654 | void noinline |
3261 | void noinline |
2655 | ev_io_stop (EV_P_ ev_io *w) |
3262 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
2656 | { |
3263 | { |
2657 | clear_pending (EV_A_ (W)w); |
3264 | clear_pending (EV_A_ (W)w); |
2658 | if (expect_false (!ev_is_active (w))) |
3265 | if (expect_false (!ev_is_active (w))) |
2659 | return; |
3266 | return; |
2660 | |
3267 | |
… | |
… | |
2669 | |
3276 | |
2670 | EV_FREQUENT_CHECK; |
3277 | EV_FREQUENT_CHECK; |
2671 | } |
3278 | } |
2672 | |
3279 | |
2673 | void noinline |
3280 | void noinline |
2674 | ev_timer_start (EV_P_ ev_timer *w) |
3281 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
2675 | { |
3282 | { |
2676 | if (expect_false (ev_is_active (w))) |
3283 | if (expect_false (ev_is_active (w))) |
2677 | return; |
3284 | return; |
2678 | |
3285 | |
2679 | ev_at (w) += mn_now; |
3286 | ev_at (w) += mn_now; |
… | |
… | |
2693 | |
3300 | |
2694 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3301 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2695 | } |
3302 | } |
2696 | |
3303 | |
2697 | void noinline |
3304 | void noinline |
2698 | ev_timer_stop (EV_P_ ev_timer *w) |
3305 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
2699 | { |
3306 | { |
2700 | clear_pending (EV_A_ (W)w); |
3307 | clear_pending (EV_A_ (W)w); |
2701 | if (expect_false (!ev_is_active (w))) |
3308 | if (expect_false (!ev_is_active (w))) |
2702 | return; |
3309 | return; |
2703 | |
3310 | |
… | |
… | |
2723 | |
3330 | |
2724 | EV_FREQUENT_CHECK; |
3331 | EV_FREQUENT_CHECK; |
2725 | } |
3332 | } |
2726 | |
3333 | |
2727 | void noinline |
3334 | void noinline |
2728 | ev_timer_again (EV_P_ ev_timer *w) |
3335 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
2729 | { |
3336 | { |
2730 | EV_FREQUENT_CHECK; |
3337 | EV_FREQUENT_CHECK; |
|
|
3338 | |
|
|
3339 | clear_pending (EV_A_ (W)w); |
2731 | |
3340 | |
2732 | if (ev_is_active (w)) |
3341 | if (ev_is_active (w)) |
2733 | { |
3342 | { |
2734 | if (w->repeat) |
3343 | if (w->repeat) |
2735 | { |
3344 | { |
… | |
… | |
2748 | |
3357 | |
2749 | EV_FREQUENT_CHECK; |
3358 | EV_FREQUENT_CHECK; |
2750 | } |
3359 | } |
2751 | |
3360 | |
2752 | ev_tstamp |
3361 | ev_tstamp |
2753 | ev_timer_remaining (EV_P_ ev_timer *w) |
3362 | ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW |
2754 | { |
3363 | { |
2755 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3364 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
2756 | } |
3365 | } |
2757 | |
3366 | |
2758 | #if EV_PERIODIC_ENABLE |
3367 | #if EV_PERIODIC_ENABLE |
2759 | void noinline |
3368 | void noinline |
2760 | ev_periodic_start (EV_P_ ev_periodic *w) |
3369 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
2761 | { |
3370 | { |
2762 | if (expect_false (ev_is_active (w))) |
3371 | if (expect_false (ev_is_active (w))) |
2763 | return; |
3372 | return; |
2764 | |
3373 | |
2765 | if (w->reschedule_cb) |
3374 | if (w->reschedule_cb) |
2766 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3375 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2767 | else if (w->interval) |
3376 | else if (w->interval) |
2768 | { |
3377 | { |
2769 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
3378 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2770 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
3379 | periodic_recalc (EV_A_ w); |
2771 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2772 | } |
3380 | } |
2773 | else |
3381 | else |
2774 | ev_at (w) = w->offset; |
3382 | ev_at (w) = w->offset; |
2775 | |
3383 | |
2776 | EV_FREQUENT_CHECK; |
3384 | EV_FREQUENT_CHECK; |
… | |
… | |
2786 | |
3394 | |
2787 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3395 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2788 | } |
3396 | } |
2789 | |
3397 | |
2790 | void noinline |
3398 | void noinline |
2791 | ev_periodic_stop (EV_P_ ev_periodic *w) |
3399 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
2792 | { |
3400 | { |
2793 | clear_pending (EV_A_ (W)w); |
3401 | clear_pending (EV_A_ (W)w); |
2794 | if (expect_false (!ev_is_active (w))) |
3402 | if (expect_false (!ev_is_active (w))) |
2795 | return; |
3403 | return; |
2796 | |
3404 | |
… | |
… | |
2814 | |
3422 | |
2815 | EV_FREQUENT_CHECK; |
3423 | EV_FREQUENT_CHECK; |
2816 | } |
3424 | } |
2817 | |
3425 | |
2818 | void noinline |
3426 | void noinline |
2819 | ev_periodic_again (EV_P_ ev_periodic *w) |
3427 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
2820 | { |
3428 | { |
2821 | /* TODO: use adjustheap and recalculation */ |
3429 | /* TODO: use adjustheap and recalculation */ |
2822 | ev_periodic_stop (EV_A_ w); |
3430 | ev_periodic_stop (EV_A_ w); |
2823 | ev_periodic_start (EV_A_ w); |
3431 | ev_periodic_start (EV_A_ w); |
2824 | } |
3432 | } |
… | |
… | |
2829 | #endif |
3437 | #endif |
2830 | |
3438 | |
2831 | #if EV_SIGNAL_ENABLE |
3439 | #if EV_SIGNAL_ENABLE |
2832 | |
3440 | |
2833 | void noinline |
3441 | void noinline |
2834 | ev_signal_start (EV_P_ ev_signal *w) |
3442 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
2835 | { |
3443 | { |
2836 | if (expect_false (ev_is_active (w))) |
3444 | if (expect_false (ev_is_active (w))) |
2837 | return; |
3445 | return; |
2838 | |
3446 | |
2839 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
3447 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
… | |
… | |
2910 | |
3518 | |
2911 | EV_FREQUENT_CHECK; |
3519 | EV_FREQUENT_CHECK; |
2912 | } |
3520 | } |
2913 | |
3521 | |
2914 | void noinline |
3522 | void noinline |
2915 | ev_signal_stop (EV_P_ ev_signal *w) |
3523 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
2916 | { |
3524 | { |
2917 | clear_pending (EV_A_ (W)w); |
3525 | clear_pending (EV_A_ (W)w); |
2918 | if (expect_false (!ev_is_active (w))) |
3526 | if (expect_false (!ev_is_active (w))) |
2919 | return; |
3527 | return; |
2920 | |
3528 | |
… | |
… | |
2951 | #endif |
3559 | #endif |
2952 | |
3560 | |
2953 | #if EV_CHILD_ENABLE |
3561 | #if EV_CHILD_ENABLE |
2954 | |
3562 | |
2955 | void |
3563 | void |
2956 | ev_child_start (EV_P_ ev_child *w) |
3564 | ev_child_start (EV_P_ ev_child *w) EV_THROW |
2957 | { |
3565 | { |
2958 | #if EV_MULTIPLICITY |
3566 | #if EV_MULTIPLICITY |
2959 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3567 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2960 | #endif |
3568 | #endif |
2961 | if (expect_false (ev_is_active (w))) |
3569 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2968 | |
3576 | |
2969 | EV_FREQUENT_CHECK; |
3577 | EV_FREQUENT_CHECK; |
2970 | } |
3578 | } |
2971 | |
3579 | |
2972 | void |
3580 | void |
2973 | ev_child_stop (EV_P_ ev_child *w) |
3581 | ev_child_stop (EV_P_ ev_child *w) EV_THROW |
2974 | { |
3582 | { |
2975 | clear_pending (EV_A_ (W)w); |
3583 | clear_pending (EV_A_ (W)w); |
2976 | if (expect_false (!ev_is_active (w))) |
3584 | if (expect_false (!ev_is_active (w))) |
2977 | return; |
3585 | return; |
2978 | |
3586 | |
… | |
… | |
3053 | if (!pend || pend == path) |
3661 | if (!pend || pend == path) |
3054 | break; |
3662 | break; |
3055 | |
3663 | |
3056 | *pend = 0; |
3664 | *pend = 0; |
3057 | w->wd = inotify_add_watch (fs_fd, path, mask); |
3665 | w->wd = inotify_add_watch (fs_fd, path, mask); |
3058 | } |
3666 | } |
3059 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
3667 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
3060 | } |
3668 | } |
3061 | } |
3669 | } |
3062 | |
3670 | |
3063 | if (w->wd >= 0) |
3671 | if (w->wd >= 0) |
… | |
… | |
3130 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3738 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3131 | ofs += sizeof (struct inotify_event) + ev->len; |
3739 | ofs += sizeof (struct inotify_event) + ev->len; |
3132 | } |
3740 | } |
3133 | } |
3741 | } |
3134 | |
3742 | |
3135 | inline_size void |
3743 | inline_size void ecb_cold |
3136 | ev_check_2625 (EV_P) |
3744 | ev_check_2625 (EV_P) |
3137 | { |
3745 | { |
3138 | /* kernels < 2.6.25 are borked |
3746 | /* kernels < 2.6.25 are borked |
3139 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3747 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3140 | */ |
3748 | */ |
… | |
… | |
3145 | } |
3753 | } |
3146 | |
3754 | |
3147 | inline_size int |
3755 | inline_size int |
3148 | infy_newfd (void) |
3756 | infy_newfd (void) |
3149 | { |
3757 | { |
3150 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
3758 | #if defined IN_CLOEXEC && defined IN_NONBLOCK |
3151 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
3759 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
3152 | if (fd >= 0) |
3760 | if (fd >= 0) |
3153 | return fd; |
3761 | return fd; |
3154 | #endif |
3762 | #endif |
3155 | return inotify_init (); |
3763 | return inotify_init (); |
… | |
… | |
3230 | #else |
3838 | #else |
3231 | # define EV_LSTAT(p,b) lstat (p, b) |
3839 | # define EV_LSTAT(p,b) lstat (p, b) |
3232 | #endif |
3840 | #endif |
3233 | |
3841 | |
3234 | void |
3842 | void |
3235 | ev_stat_stat (EV_P_ ev_stat *w) |
3843 | ev_stat_stat (EV_P_ ev_stat *w) EV_THROW |
3236 | { |
3844 | { |
3237 | if (lstat (w->path, &w->attr) < 0) |
3845 | if (lstat (w->path, &w->attr) < 0) |
3238 | w->attr.st_nlink = 0; |
3846 | w->attr.st_nlink = 0; |
3239 | else if (!w->attr.st_nlink) |
3847 | else if (!w->attr.st_nlink) |
3240 | w->attr.st_nlink = 1; |
3848 | w->attr.st_nlink = 1; |
… | |
… | |
3279 | ev_feed_event (EV_A_ w, EV_STAT); |
3887 | ev_feed_event (EV_A_ w, EV_STAT); |
3280 | } |
3888 | } |
3281 | } |
3889 | } |
3282 | |
3890 | |
3283 | void |
3891 | void |
3284 | ev_stat_start (EV_P_ ev_stat *w) |
3892 | ev_stat_start (EV_P_ ev_stat *w) EV_THROW |
3285 | { |
3893 | { |
3286 | if (expect_false (ev_is_active (w))) |
3894 | if (expect_false (ev_is_active (w))) |
3287 | return; |
3895 | return; |
3288 | |
3896 | |
3289 | ev_stat_stat (EV_A_ w); |
3897 | ev_stat_stat (EV_A_ w); |
… | |
… | |
3310 | |
3918 | |
3311 | EV_FREQUENT_CHECK; |
3919 | EV_FREQUENT_CHECK; |
3312 | } |
3920 | } |
3313 | |
3921 | |
3314 | void |
3922 | void |
3315 | ev_stat_stop (EV_P_ ev_stat *w) |
3923 | ev_stat_stop (EV_P_ ev_stat *w) EV_THROW |
3316 | { |
3924 | { |
3317 | clear_pending (EV_A_ (W)w); |
3925 | clear_pending (EV_A_ (W)w); |
3318 | if (expect_false (!ev_is_active (w))) |
3926 | if (expect_false (!ev_is_active (w))) |
3319 | return; |
3927 | return; |
3320 | |
3928 | |
… | |
… | |
3336 | } |
3944 | } |
3337 | #endif |
3945 | #endif |
3338 | |
3946 | |
3339 | #if EV_IDLE_ENABLE |
3947 | #if EV_IDLE_ENABLE |
3340 | void |
3948 | void |
3341 | ev_idle_start (EV_P_ ev_idle *w) |
3949 | ev_idle_start (EV_P_ ev_idle *w) EV_THROW |
3342 | { |
3950 | { |
3343 | if (expect_false (ev_is_active (w))) |
3951 | if (expect_false (ev_is_active (w))) |
3344 | return; |
3952 | return; |
3345 | |
3953 | |
3346 | pri_adjust (EV_A_ (W)w); |
3954 | pri_adjust (EV_A_ (W)w); |
… | |
… | |
3359 | |
3967 | |
3360 | EV_FREQUENT_CHECK; |
3968 | EV_FREQUENT_CHECK; |
3361 | } |
3969 | } |
3362 | |
3970 | |
3363 | void |
3971 | void |
3364 | ev_idle_stop (EV_P_ ev_idle *w) |
3972 | ev_idle_stop (EV_P_ ev_idle *w) EV_THROW |
3365 | { |
3973 | { |
3366 | clear_pending (EV_A_ (W)w); |
3974 | clear_pending (EV_A_ (W)w); |
3367 | if (expect_false (!ev_is_active (w))) |
3975 | if (expect_false (!ev_is_active (w))) |
3368 | return; |
3976 | return; |
3369 | |
3977 | |
… | |
… | |
3383 | } |
3991 | } |
3384 | #endif |
3992 | #endif |
3385 | |
3993 | |
3386 | #if EV_PREPARE_ENABLE |
3994 | #if EV_PREPARE_ENABLE |
3387 | void |
3995 | void |
3388 | ev_prepare_start (EV_P_ ev_prepare *w) |
3996 | ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW |
3389 | { |
3997 | { |
3390 | if (expect_false (ev_is_active (w))) |
3998 | if (expect_false (ev_is_active (w))) |
3391 | return; |
3999 | return; |
3392 | |
4000 | |
3393 | EV_FREQUENT_CHECK; |
4001 | EV_FREQUENT_CHECK; |
… | |
… | |
3398 | |
4006 | |
3399 | EV_FREQUENT_CHECK; |
4007 | EV_FREQUENT_CHECK; |
3400 | } |
4008 | } |
3401 | |
4009 | |
3402 | void |
4010 | void |
3403 | ev_prepare_stop (EV_P_ ev_prepare *w) |
4011 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW |
3404 | { |
4012 | { |
3405 | clear_pending (EV_A_ (W)w); |
4013 | clear_pending (EV_A_ (W)w); |
3406 | if (expect_false (!ev_is_active (w))) |
4014 | if (expect_false (!ev_is_active (w))) |
3407 | return; |
4015 | return; |
3408 | |
4016 | |
… | |
… | |
3421 | } |
4029 | } |
3422 | #endif |
4030 | #endif |
3423 | |
4031 | |
3424 | #if EV_CHECK_ENABLE |
4032 | #if EV_CHECK_ENABLE |
3425 | void |
4033 | void |
3426 | ev_check_start (EV_P_ ev_check *w) |
4034 | ev_check_start (EV_P_ ev_check *w) EV_THROW |
3427 | { |
4035 | { |
3428 | if (expect_false (ev_is_active (w))) |
4036 | if (expect_false (ev_is_active (w))) |
3429 | return; |
4037 | return; |
3430 | |
4038 | |
3431 | EV_FREQUENT_CHECK; |
4039 | EV_FREQUENT_CHECK; |
… | |
… | |
3436 | |
4044 | |
3437 | EV_FREQUENT_CHECK; |
4045 | EV_FREQUENT_CHECK; |
3438 | } |
4046 | } |
3439 | |
4047 | |
3440 | void |
4048 | void |
3441 | ev_check_stop (EV_P_ ev_check *w) |
4049 | ev_check_stop (EV_P_ ev_check *w) EV_THROW |
3442 | { |
4050 | { |
3443 | clear_pending (EV_A_ (W)w); |
4051 | clear_pending (EV_A_ (W)w); |
3444 | if (expect_false (!ev_is_active (w))) |
4052 | if (expect_false (!ev_is_active (w))) |
3445 | return; |
4053 | return; |
3446 | |
4054 | |
… | |
… | |
3459 | } |
4067 | } |
3460 | #endif |
4068 | #endif |
3461 | |
4069 | |
3462 | #if EV_EMBED_ENABLE |
4070 | #if EV_EMBED_ENABLE |
3463 | void noinline |
4071 | void noinline |
3464 | ev_embed_sweep (EV_P_ ev_embed *w) |
4072 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
3465 | { |
4073 | { |
3466 | ev_run (w->other, EVRUN_NOWAIT); |
4074 | ev_run (w->other, EVRUN_NOWAIT); |
3467 | } |
4075 | } |
3468 | |
4076 | |
3469 | static void |
4077 | static void |
… | |
… | |
3517 | ev_idle_stop (EV_A_ idle); |
4125 | ev_idle_stop (EV_A_ idle); |
3518 | } |
4126 | } |
3519 | #endif |
4127 | #endif |
3520 | |
4128 | |
3521 | void |
4129 | void |
3522 | ev_embed_start (EV_P_ ev_embed *w) |
4130 | ev_embed_start (EV_P_ ev_embed *w) EV_THROW |
3523 | { |
4131 | { |
3524 | if (expect_false (ev_is_active (w))) |
4132 | if (expect_false (ev_is_active (w))) |
3525 | return; |
4133 | return; |
3526 | |
4134 | |
3527 | { |
4135 | { |
… | |
… | |
3548 | |
4156 | |
3549 | EV_FREQUENT_CHECK; |
4157 | EV_FREQUENT_CHECK; |
3550 | } |
4158 | } |
3551 | |
4159 | |
3552 | void |
4160 | void |
3553 | ev_embed_stop (EV_P_ ev_embed *w) |
4161 | ev_embed_stop (EV_P_ ev_embed *w) EV_THROW |
3554 | { |
4162 | { |
3555 | clear_pending (EV_A_ (W)w); |
4163 | clear_pending (EV_A_ (W)w); |
3556 | if (expect_false (!ev_is_active (w))) |
4164 | if (expect_false (!ev_is_active (w))) |
3557 | return; |
4165 | return; |
3558 | |
4166 | |
… | |
… | |
3568 | } |
4176 | } |
3569 | #endif |
4177 | #endif |
3570 | |
4178 | |
3571 | #if EV_FORK_ENABLE |
4179 | #if EV_FORK_ENABLE |
3572 | void |
4180 | void |
3573 | ev_fork_start (EV_P_ ev_fork *w) |
4181 | ev_fork_start (EV_P_ ev_fork *w) EV_THROW |
3574 | { |
4182 | { |
3575 | if (expect_false (ev_is_active (w))) |
4183 | if (expect_false (ev_is_active (w))) |
3576 | return; |
4184 | return; |
3577 | |
4185 | |
3578 | EV_FREQUENT_CHECK; |
4186 | EV_FREQUENT_CHECK; |
… | |
… | |
3583 | |
4191 | |
3584 | EV_FREQUENT_CHECK; |
4192 | EV_FREQUENT_CHECK; |
3585 | } |
4193 | } |
3586 | |
4194 | |
3587 | void |
4195 | void |
3588 | ev_fork_stop (EV_P_ ev_fork *w) |
4196 | ev_fork_stop (EV_P_ ev_fork *w) EV_THROW |
3589 | { |
4197 | { |
3590 | clear_pending (EV_A_ (W)w); |
4198 | clear_pending (EV_A_ (W)w); |
3591 | if (expect_false (!ev_is_active (w))) |
4199 | if (expect_false (!ev_is_active (w))) |
3592 | return; |
4200 | return; |
3593 | |
4201 | |
… | |
… | |
3606 | } |
4214 | } |
3607 | #endif |
4215 | #endif |
3608 | |
4216 | |
3609 | #if EV_CLEANUP_ENABLE |
4217 | #if EV_CLEANUP_ENABLE |
3610 | void |
4218 | void |
3611 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
4219 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW |
3612 | { |
4220 | { |
3613 | if (expect_false (ev_is_active (w))) |
4221 | if (expect_false (ev_is_active (w))) |
3614 | return; |
4222 | return; |
3615 | |
4223 | |
3616 | EV_FREQUENT_CHECK; |
4224 | EV_FREQUENT_CHECK; |
… | |
… | |
3623 | ev_unref (EV_A); |
4231 | ev_unref (EV_A); |
3624 | EV_FREQUENT_CHECK; |
4232 | EV_FREQUENT_CHECK; |
3625 | } |
4233 | } |
3626 | |
4234 | |
3627 | void |
4235 | void |
3628 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
4236 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW |
3629 | { |
4237 | { |
3630 | clear_pending (EV_A_ (W)w); |
4238 | clear_pending (EV_A_ (W)w); |
3631 | if (expect_false (!ev_is_active (w))) |
4239 | if (expect_false (!ev_is_active (w))) |
3632 | return; |
4240 | return; |
3633 | |
4241 | |
… | |
… | |
3647 | } |
4255 | } |
3648 | #endif |
4256 | #endif |
3649 | |
4257 | |
3650 | #if EV_ASYNC_ENABLE |
4258 | #if EV_ASYNC_ENABLE |
3651 | void |
4259 | void |
3652 | ev_async_start (EV_P_ ev_async *w) |
4260 | ev_async_start (EV_P_ ev_async *w) EV_THROW |
3653 | { |
4261 | { |
3654 | if (expect_false (ev_is_active (w))) |
4262 | if (expect_false (ev_is_active (w))) |
3655 | return; |
4263 | return; |
3656 | |
4264 | |
3657 | w->sent = 0; |
4265 | w->sent = 0; |
… | |
… | |
3666 | |
4274 | |
3667 | EV_FREQUENT_CHECK; |
4275 | EV_FREQUENT_CHECK; |
3668 | } |
4276 | } |
3669 | |
4277 | |
3670 | void |
4278 | void |
3671 | ev_async_stop (EV_P_ ev_async *w) |
4279 | ev_async_stop (EV_P_ ev_async *w) EV_THROW |
3672 | { |
4280 | { |
3673 | clear_pending (EV_A_ (W)w); |
4281 | clear_pending (EV_A_ (W)w); |
3674 | if (expect_false (!ev_is_active (w))) |
4282 | if (expect_false (!ev_is_active (w))) |
3675 | return; |
4283 | return; |
3676 | |
4284 | |
… | |
… | |
3687 | |
4295 | |
3688 | EV_FREQUENT_CHECK; |
4296 | EV_FREQUENT_CHECK; |
3689 | } |
4297 | } |
3690 | |
4298 | |
3691 | void |
4299 | void |
3692 | ev_async_send (EV_P_ ev_async *w) |
4300 | ev_async_send (EV_P_ ev_async *w) EV_THROW |
3693 | { |
4301 | { |
3694 | w->sent = 1; |
4302 | w->sent = 1; |
3695 | evpipe_write (EV_A_ &async_pending); |
4303 | evpipe_write (EV_A_ &async_pending); |
3696 | } |
4304 | } |
3697 | #endif |
4305 | #endif |
… | |
… | |
3734 | |
4342 | |
3735 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
4343 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
3736 | } |
4344 | } |
3737 | |
4345 | |
3738 | void |
4346 | void |
3739 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
4347 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW |
3740 | { |
4348 | { |
3741 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4349 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3742 | |
4350 | |
3743 | if (expect_false (!once)) |
4351 | if (expect_false (!once)) |
3744 | { |
4352 | { |
… | |
… | |
3765 | } |
4373 | } |
3766 | |
4374 | |
3767 | /*****************************************************************************/ |
4375 | /*****************************************************************************/ |
3768 | |
4376 | |
3769 | #if EV_WALK_ENABLE |
4377 | #if EV_WALK_ENABLE |
3770 | void |
4378 | void ecb_cold |
3771 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
4379 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
3772 | { |
4380 | { |
3773 | int i, j; |
4381 | int i, j; |
3774 | ev_watcher_list *wl, *wn; |
4382 | ev_watcher_list *wl, *wn; |
3775 | |
4383 | |
3776 | if (types & (EV_IO | EV_EMBED)) |
4384 | if (types & (EV_IO | EV_EMBED)) |
… | |
… | |
3819 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
4427 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
3820 | #endif |
4428 | #endif |
3821 | |
4429 | |
3822 | #if EV_IDLE_ENABLE |
4430 | #if EV_IDLE_ENABLE |
3823 | if (types & EV_IDLE) |
4431 | if (types & EV_IDLE) |
3824 | for (j = NUMPRI; i--; ) |
4432 | for (j = NUMPRI; j--; ) |
3825 | for (i = idlecnt [j]; i--; ) |
4433 | for (i = idlecnt [j]; i--; ) |
3826 | cb (EV_A_ EV_IDLE, idles [j][i]); |
4434 | cb (EV_A_ EV_IDLE, idles [j][i]); |
3827 | #endif |
4435 | #endif |
3828 | |
4436 | |
3829 | #if EV_FORK_ENABLE |
4437 | #if EV_FORK_ENABLE |
… | |
… | |
3882 | |
4490 | |
3883 | #if EV_MULTIPLICITY |
4491 | #if EV_MULTIPLICITY |
3884 | #include "ev_wrap.h" |
4492 | #include "ev_wrap.h" |
3885 | #endif |
4493 | #endif |
3886 | |
4494 | |
3887 | EV_CPP(}) |
|
|
3888 | |
|
|