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 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> |
189 | #else |
203 | #else |
190 | # include <io.h> |
204 | # include <io.h> |
191 | # define WIN32_LEAN_AND_MEAN |
205 | # define WIN32_LEAN_AND_MEAN |
|
|
206 | # include <winsock2.h> |
192 | # include <windows.h> |
207 | # include <windows.h> |
193 | # ifndef EV_SELECT_IS_WINSOCKET |
208 | # ifndef EV_SELECT_IS_WINSOCKET |
194 | # define EV_SELECT_IS_WINSOCKET 1 |
209 | # define EV_SELECT_IS_WINSOCKET 1 |
195 | # endif |
210 | # endif |
196 | # undef EV_AVOID_STDIO |
211 | # undef EV_AVOID_STDIO |
… | |
… | |
205 | #define _DARWIN_UNLIMITED_SELECT 1 |
220 | #define _DARWIN_UNLIMITED_SELECT 1 |
206 | |
221 | |
207 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
222 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
208 | |
223 | |
209 | /* try to deduce the maximum number of signals on this platform */ |
224 | /* try to deduce the maximum number of signals on this platform */ |
210 | #if defined (EV_NSIG) |
225 | #if defined EV_NSIG |
211 | /* use what's provided */ |
226 | /* use what's provided */ |
212 | #elif defined (NSIG) |
227 | #elif defined NSIG |
213 | # define EV_NSIG (NSIG) |
228 | # define EV_NSIG (NSIG) |
214 | #elif defined(_NSIG) |
229 | #elif defined _NSIG |
215 | # define EV_NSIG (_NSIG) |
230 | # define EV_NSIG (_NSIG) |
216 | #elif defined (SIGMAX) |
231 | #elif defined SIGMAX |
217 | # define EV_NSIG (SIGMAX+1) |
232 | # define EV_NSIG (SIGMAX+1) |
218 | #elif defined (SIG_MAX) |
233 | #elif defined SIG_MAX |
219 | # define EV_NSIG (SIG_MAX+1) |
234 | # define EV_NSIG (SIG_MAX+1) |
220 | #elif defined (_SIG_MAX) |
235 | #elif defined _SIG_MAX |
221 | # define EV_NSIG (_SIG_MAX+1) |
236 | # define EV_NSIG (_SIG_MAX+1) |
222 | #elif defined (MAXSIG) |
237 | #elif defined MAXSIG |
223 | # define EV_NSIG (MAXSIG+1) |
238 | # define EV_NSIG (MAXSIG+1) |
224 | #elif defined (MAX_SIG) |
239 | #elif defined MAX_SIG |
225 | # define EV_NSIG (MAX_SIG+1) |
240 | # define EV_NSIG (MAX_SIG+1) |
226 | #elif defined (SIGARRAYSIZE) |
241 | #elif defined SIGARRAYSIZE |
227 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
242 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
228 | #elif defined (_sys_nsig) |
243 | #elif defined _sys_nsig |
229 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
244 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
230 | #else |
245 | #else |
231 | # error "unable to find value for NSIG, please report" |
246 | # error "unable to find value for NSIG, please report" |
232 | /* to make it compile regardless, just remove the above line, */ |
247 | /* to make it compile regardless, just remove the above line, */ |
233 | /* but consider reporting it, too! :) */ |
248 | /* but consider reporting it, too! :) */ |
234 | # define EV_NSIG 65 |
249 | # define EV_NSIG 65 |
235 | #endif |
250 | #endif |
236 | |
251 | |
|
|
252 | #ifndef EV_USE_FLOOR |
|
|
253 | # define EV_USE_FLOOR 0 |
|
|
254 | #endif |
|
|
255 | |
237 | #ifndef EV_USE_CLOCK_SYSCALL |
256 | #ifndef EV_USE_CLOCK_SYSCALL |
238 | # if __linux && __GLIBC__ >= 2 |
257 | # if __linux && __GLIBC__ >= 2 |
239 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
258 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
240 | # else |
259 | # else |
241 | # define EV_USE_CLOCK_SYSCALL 0 |
260 | # define EV_USE_CLOCK_SYSCALL 0 |
242 | # endif |
261 | # endif |
243 | #endif |
262 | #endif |
244 | |
263 | |
245 | #ifndef EV_USE_MONOTONIC |
264 | #ifndef EV_USE_MONOTONIC |
246 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
265 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
247 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
266 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
248 | # else |
267 | # else |
249 | # define EV_USE_MONOTONIC 0 |
268 | # define EV_USE_MONOTONIC 0 |
250 | # endif |
269 | # endif |
251 | #endif |
270 | #endif |
… | |
… | |
341 | #endif |
360 | #endif |
342 | |
361 | |
343 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
362 | /* 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. */ |
363 | /* which makes programs even slower. might work on other unices, too. */ |
345 | #if EV_USE_CLOCK_SYSCALL |
364 | #if EV_USE_CLOCK_SYSCALL |
346 | # include <syscall.h> |
365 | # include <sys/syscall.h> |
347 | # ifdef SYS_clock_gettime |
366 | # ifdef SYS_clock_gettime |
348 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
367 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
349 | # undef EV_USE_MONOTONIC |
368 | # undef EV_USE_MONOTONIC |
350 | # define EV_USE_MONOTONIC 1 |
369 | # define EV_USE_MONOTONIC 1 |
351 | # else |
370 | # else |
… | |
… | |
376 | # undef EV_USE_INOTIFY |
395 | # undef EV_USE_INOTIFY |
377 | # define EV_USE_INOTIFY 0 |
396 | # define EV_USE_INOTIFY 0 |
378 | #endif |
397 | #endif |
379 | |
398 | |
380 | #if !EV_USE_NANOSLEEP |
399 | #if !EV_USE_NANOSLEEP |
381 | # ifndef _WIN32 |
400 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
|
|
401 | # if !defined _WIN32 && !defined __hpux |
382 | # include <sys/select.h> |
402 | # include <sys/select.h> |
383 | # endif |
403 | # endif |
384 | #endif |
404 | #endif |
385 | |
405 | |
386 | #if EV_USE_INOTIFY |
406 | #if EV_USE_INOTIFY |
387 | # include <sys/utsname.h> |
|
|
388 | # include <sys/statfs.h> |
407 | # include <sys/statfs.h> |
389 | # include <sys/inotify.h> |
408 | # include <sys/inotify.h> |
390 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
409 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
391 | # ifndef IN_DONT_FOLLOW |
410 | # ifndef IN_DONT_FOLLOW |
392 | # undef EV_USE_INOTIFY |
411 | # undef EV_USE_INOTIFY |
393 | # define EV_USE_INOTIFY 0 |
412 | # define EV_USE_INOTIFY 0 |
394 | # endif |
413 | # endif |
395 | #endif |
|
|
396 | |
|
|
397 | #if EV_SELECT_IS_WINSOCKET |
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|
398 | # include <winsock.h> |
|
|
399 | #endif |
414 | #endif |
400 | |
415 | |
401 | #if EV_USE_EVENTFD |
416 | #if EV_USE_EVENTFD |
402 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
417 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
403 | # include <stdint.h> |
418 | # include <stdint.h> |
… | |
… | |
443 | #else |
458 | #else |
444 | # define EV_FREQUENT_CHECK do { } while (0) |
459 | # define EV_FREQUENT_CHECK do { } while (0) |
445 | #endif |
460 | #endif |
446 | |
461 | |
447 | /* |
462 | /* |
448 | * This is used to avoid floating point rounding problems. |
463 | * This is used to work around floating point rounding problems. |
449 | * It is added to ev_rt_now when scheduling periodics |
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|
450 | * to ensure progress, time-wise, even when rounding |
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|
451 | * errors are against us. |
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|
452 | * This value is good at least till the year 4000. |
464 | * This value is good at least till the year 4000. |
453 | * Better solutions welcome. |
|
|
454 | */ |
465 | */ |
455 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
466 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
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|
467 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
456 | |
468 | |
457 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
469 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
458 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
470 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
459 | |
471 | |
460 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
472 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
461 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
473 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
462 | |
474 | |
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|
475 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
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476 | /* ECB.H BEGIN */ |
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477 | /* |
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478 | * libecb - http://software.schmorp.de/pkg/libecb |
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479 | * |
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480 | * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> |
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481 | * Copyright (©) 2011 Emanuele Giaquinta |
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482 | * All rights reserved. |
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483 | * |
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484 | * Redistribution and use in source and binary forms, with or without modifica- |
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485 | * tion, are permitted provided that the following conditions are met: |
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|
486 | * |
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|
487 | * 1. Redistributions of source code must retain the above copyright notice, |
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|
488 | * this list of conditions and the following disclaimer. |
|
|
489 | * |
|
|
490 | * 2. Redistributions in binary form must reproduce the above copyright |
|
|
491 | * notice, this list of conditions and the following disclaimer in the |
|
|
492 | * documentation and/or other materials provided with the distribution. |
|
|
493 | * |
|
|
494 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
|
|
495 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
|
|
496 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
|
|
497 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
|
|
498 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
|
|
499 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
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500 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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|
501 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
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|
502 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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|
503 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
|
|
504 | */ |
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505 | |
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|
506 | #ifndef ECB_H |
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|
507 | #define ECB_H |
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|
508 | |
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|
509 | #ifdef _WIN32 |
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|
510 | typedef signed char int8_t; |
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|
511 | typedef unsigned char uint8_t; |
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|
512 | typedef signed short int16_t; |
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|
513 | typedef unsigned short uint16_t; |
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|
514 | typedef signed int int32_t; |
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|
515 | typedef unsigned int uint32_t; |
463 | #if __GNUC__ >= 4 |
516 | #if __GNUC__ |
464 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
517 | typedef signed long long int64_t; |
465 | # define noinline __attribute__ ((noinline)) |
518 | typedef unsigned long long uint64_t; |
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|
519 | #else /* _MSC_VER || __BORLANDC__ */ |
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|
520 | typedef signed __int64 int64_t; |
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|
521 | typedef unsigned __int64 uint64_t; |
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|
522 | #endif |
466 | #else |
523 | #else |
467 | # define expect(expr,value) (expr) |
524 | #include <inttypes.h> |
468 | # define noinline |
|
|
469 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
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|
470 | # define inline |
|
|
471 | # endif |
525 | #endif |
|
|
526 | |
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527 | /* many compilers define _GNUC_ to some versions but then only implement |
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|
528 | * what their idiot authors think are the "more important" extensions, |
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529 | * causing enormous grief in return for some better fake benchmark numbers. |
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530 | * or so. |
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|
531 | * we try to detect these and simply assume they are not gcc - if they have |
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532 | * an issue with that they should have done it right in the first place. |
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|
533 | */ |
|
|
534 | #ifndef ECB_GCC_VERSION |
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|
535 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
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|
536 | #define ECB_GCC_VERSION(major,minor) 0 |
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|
537 | #else |
|
|
538 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
472 | #endif |
539 | #endif |
|
|
540 | #endif |
473 | |
541 | |
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|
542 | /*****************************************************************************/ |
|
|
543 | |
|
|
544 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
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545 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
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|
546 | |
|
|
547 | #if ECB_NO_THREADS |
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|
548 | # define ECB_NO_SMP 1 |
|
|
549 | #endif |
|
|
550 | |
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551 | #if ECB_NO_THREADS || ECB_NO_SMP |
|
|
552 | #define ECB_MEMORY_FENCE do { } while (0) |
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|
553 | #endif |
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554 | |
|
|
555 | #ifndef ECB_MEMORY_FENCE |
|
|
556 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
557 | #if __i386 || __i386__ |
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|
558 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
|
|
559 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ |
|
|
560 | #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ |
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|
561 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
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562 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
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|
563 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") |
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|
564 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ |
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565 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
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|
566 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
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|
567 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
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|
568 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
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|
569 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
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570 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
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571 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
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572 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
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573 | #elif __sparc || __sparc__ |
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574 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory") |
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575 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
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576 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
|
|
577 | #elif defined __s390__ || defined __s390x__ |
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578 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
|
|
579 | #elif defined __mips__ |
|
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580 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
581 | #elif defined __alpha__ |
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|
582 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
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|
583 | #endif |
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|
584 | #endif |
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585 | #endif |
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586 | |
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587 | #ifndef ECB_MEMORY_FENCE |
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588 | #if ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
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589 | #define ECB_MEMORY_FENCE __sync_synchronize () |
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590 | /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ |
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591 | /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ |
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592 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
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593 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
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594 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
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595 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
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596 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
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597 | #elif defined _WIN32 |
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598 | #include <WinNT.h> |
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599 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
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600 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
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601 | #include <mbarrier.h> |
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602 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
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603 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
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604 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
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605 | #elif __xlC__ |
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606 | #define ECB_MEMORY_FENCE __sync () |
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607 | #endif |
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608 | #endif |
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609 | |
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610 | #ifndef ECB_MEMORY_FENCE |
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611 | #if !ECB_AVOID_PTHREADS |
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612 | /* |
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613 | * if you get undefined symbol references to pthread_mutex_lock, |
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614 | * or failure to find pthread.h, then you should implement |
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615 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
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616 | * OR provide pthread.h and link against the posix thread library |
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617 | * of your system. |
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618 | */ |
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619 | #include <pthread.h> |
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620 | #define ECB_NEEDS_PTHREADS 1 |
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621 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
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622 | |
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623 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
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624 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
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625 | #endif |
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626 | #endif |
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627 | |
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628 | #if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE |
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629 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
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630 | #endif |
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631 | |
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632 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
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633 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
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634 | #endif |
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635 | |
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636 | /*****************************************************************************/ |
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637 | |
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638 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
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639 | |
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640 | #if __cplusplus |
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641 | #define ecb_inline static inline |
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642 | #elif ECB_GCC_VERSION(2,5) |
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643 | #define ecb_inline static __inline__ |
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644 | #elif ECB_C99 |
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645 | #define ecb_inline static inline |
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646 | #else |
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647 | #define ecb_inline static |
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648 | #endif |
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649 | |
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650 | #if ECB_GCC_VERSION(3,3) |
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651 | #define ecb_restrict __restrict__ |
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652 | #elif ECB_C99 |
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653 | #define ecb_restrict restrict |
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654 | #else |
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655 | #define ecb_restrict |
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656 | #endif |
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657 | |
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658 | typedef int ecb_bool; |
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659 | |
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660 | #define ECB_CONCAT_(a, b) a ## b |
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661 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
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662 | #define ECB_STRINGIFY_(a) # a |
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663 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
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664 | |
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665 | #define ecb_function_ ecb_inline |
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666 | |
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667 | #if ECB_GCC_VERSION(3,1) |
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668 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
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669 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
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670 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
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671 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
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672 | #else |
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673 | #define ecb_attribute(attrlist) |
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674 | #define ecb_is_constant(expr) 0 |
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675 | #define ecb_expect(expr,value) (expr) |
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676 | #define ecb_prefetch(addr,rw,locality) |
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677 | #endif |
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678 | |
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679 | /* no emulation for ecb_decltype */ |
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680 | #if ECB_GCC_VERSION(4,5) |
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681 | #define ecb_decltype(x) __decltype(x) |
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682 | #elif ECB_GCC_VERSION(3,0) |
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683 | #define ecb_decltype(x) __typeof(x) |
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684 | #endif |
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685 | |
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686 | #define ecb_noinline ecb_attribute ((__noinline__)) |
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687 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
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688 | #define ecb_unused ecb_attribute ((__unused__)) |
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689 | #define ecb_const ecb_attribute ((__const__)) |
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690 | #define ecb_pure ecb_attribute ((__pure__)) |
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691 | |
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692 | #if ECB_GCC_VERSION(4,3) |
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693 | #define ecb_artificial ecb_attribute ((__artificial__)) |
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694 | #define ecb_hot ecb_attribute ((__hot__)) |
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695 | #define ecb_cold ecb_attribute ((__cold__)) |
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696 | #else |
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697 | #define ecb_artificial |
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698 | #define ecb_hot |
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699 | #define ecb_cold |
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700 | #endif |
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701 | |
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702 | /* put around conditional expressions if you are very sure that the */ |
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703 | /* expression is mostly true or mostly false. note that these return */ |
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704 | /* booleans, not the expression. */ |
474 | #define expect_false(expr) expect ((expr) != 0, 0) |
705 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
475 | #define expect_true(expr) expect ((expr) != 0, 1) |
706 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
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707 | /* for compatibility to the rest of the world */ |
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708 | #define ecb_likely(expr) ecb_expect_true (expr) |
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709 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
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710 | |
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711 | /* count trailing zero bits and count # of one bits */ |
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712 | #if ECB_GCC_VERSION(3,4) |
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713 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
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714 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
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715 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
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716 | #define ecb_ctz32(x) __builtin_ctz (x) |
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717 | #define ecb_ctz64(x) __builtin_ctzll (x) |
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718 | #define ecb_popcount32(x) __builtin_popcount (x) |
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719 | /* no popcountll */ |
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720 | #else |
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721 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
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722 | ecb_function_ int |
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723 | ecb_ctz32 (uint32_t x) |
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724 | { |
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725 | int r = 0; |
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726 | |
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727 | x &= ~x + 1; /* this isolates the lowest bit */ |
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728 | |
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729 | #if ECB_branchless_on_i386 |
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730 | r += !!(x & 0xaaaaaaaa) << 0; |
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731 | r += !!(x & 0xcccccccc) << 1; |
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732 | r += !!(x & 0xf0f0f0f0) << 2; |
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733 | r += !!(x & 0xff00ff00) << 3; |
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734 | r += !!(x & 0xffff0000) << 4; |
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735 | #else |
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736 | if (x & 0xaaaaaaaa) r += 1; |
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737 | if (x & 0xcccccccc) r += 2; |
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738 | if (x & 0xf0f0f0f0) r += 4; |
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739 | if (x & 0xff00ff00) r += 8; |
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740 | if (x & 0xffff0000) r += 16; |
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741 | #endif |
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742 | |
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743 | return r; |
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744 | } |
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745 | |
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746 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
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747 | ecb_function_ int |
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748 | ecb_ctz64 (uint64_t x) |
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749 | { |
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750 | int shift = x & 0xffffffffU ? 0 : 32; |
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751 | return ecb_ctz32 (x >> shift) + shift; |
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752 | } |
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753 | |
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754 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
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755 | ecb_function_ int |
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756 | ecb_popcount32 (uint32_t x) |
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757 | { |
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758 | x -= (x >> 1) & 0x55555555; |
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759 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
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760 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
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761 | x *= 0x01010101; |
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762 | |
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763 | return x >> 24; |
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764 | } |
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765 | |
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766 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
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767 | ecb_function_ int ecb_ld32 (uint32_t x) |
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768 | { |
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769 | int r = 0; |
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770 | |
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771 | if (x >> 16) { x >>= 16; r += 16; } |
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772 | if (x >> 8) { x >>= 8; r += 8; } |
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773 | if (x >> 4) { x >>= 4; r += 4; } |
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774 | if (x >> 2) { x >>= 2; r += 2; } |
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775 | if (x >> 1) { r += 1; } |
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776 | |
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777 | return r; |
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778 | } |
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779 | |
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780 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
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781 | ecb_function_ int ecb_ld64 (uint64_t x) |
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782 | { |
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783 | int r = 0; |
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784 | |
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785 | if (x >> 32) { x >>= 32; r += 32; } |
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786 | |
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787 | return r + ecb_ld32 (x); |
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788 | } |
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789 | #endif |
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790 | |
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791 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
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792 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
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793 | { |
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794 | return ( (x * 0x0802U & 0x22110U) |
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795 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
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796 | } |
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797 | |
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798 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
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799 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
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800 | { |
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801 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
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802 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
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803 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
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804 | x = ( x >> 8 ) | ( x << 8); |
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805 | |
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806 | return x; |
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807 | } |
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808 | |
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809 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
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810 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
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811 | { |
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812 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
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813 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
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814 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
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815 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
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816 | x = ( x >> 16 ) | ( x << 16); |
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817 | |
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818 | return x; |
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819 | } |
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820 | |
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821 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
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822 | /* so for this version we are lazy */ |
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823 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
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824 | ecb_function_ int |
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825 | ecb_popcount64 (uint64_t x) |
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826 | { |
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827 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
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828 | } |
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829 | |
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830 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
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831 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
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832 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
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833 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
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834 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
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835 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
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836 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
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837 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
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838 | |
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839 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
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840 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
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841 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
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842 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
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843 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
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844 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
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845 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
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846 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
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847 | |
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848 | #if ECB_GCC_VERSION(4,3) |
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849 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
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850 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
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851 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
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852 | #else |
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853 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
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854 | ecb_function_ uint16_t |
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855 | ecb_bswap16 (uint16_t x) |
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856 | { |
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857 | return ecb_rotl16 (x, 8); |
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858 | } |
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859 | |
|
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860 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
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861 | ecb_function_ uint32_t |
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862 | ecb_bswap32 (uint32_t x) |
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863 | { |
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864 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
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|
865 | } |
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|
866 | |
|
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867 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
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868 | ecb_function_ uint64_t |
|
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869 | ecb_bswap64 (uint64_t x) |
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870 | { |
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871 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
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|
872 | } |
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873 | #endif |
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|
874 | |
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875 | #if ECB_GCC_VERSION(4,5) |
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876 | #define ecb_unreachable() __builtin_unreachable () |
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877 | #else |
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878 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
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879 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
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880 | ecb_inline void ecb_unreachable (void) { } |
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|
881 | #endif |
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|
882 | |
|
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883 | /* try to tell the compiler that some condition is definitely true */ |
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884 | #define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) |
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|
885 | |
|
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886 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
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|
887 | ecb_inline unsigned char |
|
|
888 | ecb_byteorder_helper (void) |
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|
889 | { |
|
|
890 | const uint32_t u = 0x11223344; |
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|
891 | return *(unsigned char *)&u; |
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|
892 | } |
|
|
893 | |
|
|
894 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
|
|
895 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
|
|
896 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
|
|
897 | ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
|
|
898 | |
|
|
899 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
900 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
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|
901 | #else |
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902 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
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903 | #endif |
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|
904 | |
|
|
905 | #if __cplusplus |
|
|
906 | template<typename T> |
|
|
907 | static inline T ecb_div_rd (T val, T div) |
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908 | { |
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|
909 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
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|
910 | } |
|
|
911 | template<typename T> |
|
|
912 | static inline T ecb_div_ru (T val, T div) |
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913 | { |
|
|
914 | return val < 0 ? - ((-val ) / div) : (val + div - 1) / div; |
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|
915 | } |
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|
916 | #else |
|
|
917 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
|
|
918 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
|
|
919 | #endif |
|
|
920 | |
|
|
921 | #if ecb_cplusplus_does_not_suck |
|
|
922 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
923 | template<typename T, int N> |
|
|
924 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
925 | { |
|
|
926 | return N; |
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|
927 | } |
|
|
928 | #else |
|
|
929 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
930 | #endif |
|
|
931 | |
|
|
932 | #endif |
|
|
933 | |
|
|
934 | /* ECB.H END */ |
|
|
935 | |
|
|
936 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
937 | /* if your architecture doesn't need memory fences, e.g. because it is |
|
|
938 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
|
|
939 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
|
|
940 | * libev, in which cases the memory fences become nops. |
|
|
941 | * alternatively, you can remove this #error and link against libpthread, |
|
|
942 | * which will then provide the memory fences. |
|
|
943 | */ |
|
|
944 | # error "memory fences not defined for your architecture, please report" |
|
|
945 | #endif |
|
|
946 | |
|
|
947 | #ifndef ECB_MEMORY_FENCE |
|
|
948 | # define ECB_MEMORY_FENCE do { } while (0) |
|
|
949 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
950 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
951 | #endif |
|
|
952 | |
|
|
953 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
954 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
955 | #define noinline ecb_noinline |
|
|
956 | |
476 | #define inline_size static inline |
957 | #define inline_size ecb_inline |
477 | |
958 | |
478 | #if EV_FEATURE_CODE |
959 | #if EV_FEATURE_CODE |
479 | # define inline_speed static inline |
960 | # define inline_speed ecb_inline |
480 | #else |
961 | #else |
481 | # define inline_speed static noinline |
962 | # define inline_speed static noinline |
482 | #endif |
963 | #endif |
483 | |
964 | |
484 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
965 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
… | |
… | |
523 | # include "ev_win32.c" |
1004 | # include "ev_win32.c" |
524 | #endif |
1005 | #endif |
525 | |
1006 | |
526 | /*****************************************************************************/ |
1007 | /*****************************************************************************/ |
527 | |
1008 | |
|
|
1009 | /* define a suitable floor function (only used by periodics atm) */ |
|
|
1010 | |
|
|
1011 | #if EV_USE_FLOOR |
|
|
1012 | # include <math.h> |
|
|
1013 | # define ev_floor(v) floor (v) |
|
|
1014 | #else |
|
|
1015 | |
|
|
1016 | #include <float.h> |
|
|
1017 | |
|
|
1018 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1019 | static ev_tstamp noinline |
|
|
1020 | ev_floor (ev_tstamp v) |
|
|
1021 | { |
|
|
1022 | /* the choice of shift factor is not terribly important */ |
|
|
1023 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
|
|
1024 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
|
|
1025 | #else |
|
|
1026 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
|
|
1027 | #endif |
|
|
1028 | |
|
|
1029 | /* argument too large for an unsigned long? */ |
|
|
1030 | if (expect_false (v >= shift)) |
|
|
1031 | { |
|
|
1032 | ev_tstamp f; |
|
|
1033 | |
|
|
1034 | if (v == v - 1.) |
|
|
1035 | return v; /* very large number */ |
|
|
1036 | |
|
|
1037 | f = shift * ev_floor (v * (1. / shift)); |
|
|
1038 | return f + ev_floor (v - f); |
|
|
1039 | } |
|
|
1040 | |
|
|
1041 | /* special treatment for negative args? */ |
|
|
1042 | if (expect_false (v < 0.)) |
|
|
1043 | { |
|
|
1044 | ev_tstamp f = -ev_floor (-v); |
|
|
1045 | |
|
|
1046 | return f - (f == v ? 0 : 1); |
|
|
1047 | } |
|
|
1048 | |
|
|
1049 | /* fits into an unsigned long */ |
|
|
1050 | return (unsigned long)v; |
|
|
1051 | } |
|
|
1052 | |
|
|
1053 | #endif |
|
|
1054 | |
|
|
1055 | /*****************************************************************************/ |
|
|
1056 | |
|
|
1057 | #ifdef __linux |
|
|
1058 | # include <sys/utsname.h> |
|
|
1059 | #endif |
|
|
1060 | |
528 | static unsigned int noinline |
1061 | static unsigned int noinline ecb_cold |
529 | ev_linux_version (void) |
1062 | ev_linux_version (void) |
530 | { |
1063 | { |
531 | #ifdef __linux |
1064 | #ifdef __linux |
|
|
1065 | unsigned int v = 0; |
532 | struct utsname buf; |
1066 | struct utsname buf; |
533 | unsigned int v; |
|
|
534 | int i; |
1067 | int i; |
535 | char *p = buf.release; |
1068 | char *p = buf.release; |
536 | |
1069 | |
537 | if (uname (&buf)) |
1070 | if (uname (&buf)) |
538 | return 0; |
1071 | return 0; |
… | |
… | |
562 | } |
1095 | } |
563 | |
1096 | |
564 | /*****************************************************************************/ |
1097 | /*****************************************************************************/ |
565 | |
1098 | |
566 | #if EV_AVOID_STDIO |
1099 | #if EV_AVOID_STDIO |
567 | static void noinline |
1100 | static void noinline ecb_cold |
568 | ev_printerr (const char *msg) |
1101 | ev_printerr (const char *msg) |
569 | { |
1102 | { |
570 | write (STDERR_FILENO, msg, strlen (msg)); |
1103 | write (STDERR_FILENO, msg, strlen (msg)); |
571 | } |
1104 | } |
572 | #endif |
1105 | #endif |
573 | |
1106 | |
574 | static void (*syserr_cb)(const char *msg); |
1107 | static void (*syserr_cb)(const char *msg) EV_THROW; |
575 | |
1108 | |
576 | void |
1109 | void ecb_cold |
577 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1110 | ev_set_syserr_cb (void (*cb)(const char *msg)) EV_THROW |
578 | { |
1111 | { |
579 | syserr_cb = cb; |
1112 | syserr_cb = cb; |
580 | } |
1113 | } |
581 | |
1114 | |
582 | static void noinline |
1115 | static void noinline ecb_cold |
583 | ev_syserr (const char *msg) |
1116 | ev_syserr (const char *msg) |
584 | { |
1117 | { |
585 | if (!msg) |
1118 | if (!msg) |
586 | msg = "(libev) system error"; |
1119 | msg = "(libev) system error"; |
587 | |
1120 | |
588 | if (syserr_cb) |
1121 | if (syserr_cb) |
589 | syserr_cb (msg); |
1122 | syserr_cb (msg); |
590 | else |
1123 | else |
591 | { |
1124 | { |
592 | #if EV_AVOID_STDIO |
1125 | #if EV_AVOID_STDIO |
593 | const char *err = strerror (errno); |
|
|
594 | |
|
|
595 | ev_printerr (msg); |
1126 | ev_printerr (msg); |
596 | ev_printerr (": "); |
1127 | ev_printerr (": "); |
597 | ev_printerr (err); |
1128 | ev_printerr (strerror (errno)); |
598 | ev_printerr ("\n"); |
1129 | ev_printerr ("\n"); |
599 | #else |
1130 | #else |
600 | perror (msg); |
1131 | perror (msg); |
601 | #endif |
1132 | #endif |
602 | abort (); |
1133 | abort (); |
… | |
… | |
620 | free (ptr); |
1151 | free (ptr); |
621 | return 0; |
1152 | return 0; |
622 | #endif |
1153 | #endif |
623 | } |
1154 | } |
624 | |
1155 | |
625 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1156 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
626 | |
1157 | |
627 | void |
1158 | void ecb_cold |
628 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1159 | ev_set_allocator (void *(*cb)(void *ptr, long size)) EV_THROW |
629 | { |
1160 | { |
630 | alloc = cb; |
1161 | alloc = cb; |
631 | } |
1162 | } |
632 | |
1163 | |
633 | inline_speed void * |
1164 | inline_speed void * |
… | |
… | |
636 | ptr = alloc (ptr, size); |
1167 | ptr = alloc (ptr, size); |
637 | |
1168 | |
638 | if (!ptr && size) |
1169 | if (!ptr && size) |
639 | { |
1170 | { |
640 | #if EV_AVOID_STDIO |
1171 | #if EV_AVOID_STDIO |
641 | ev_printerr ("libev: memory allocation failed, aborting.\n"); |
1172 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
642 | #else |
1173 | #else |
643 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
1174 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
644 | #endif |
1175 | #endif |
645 | abort (); |
1176 | abort (); |
646 | } |
1177 | } |
647 | |
1178 | |
648 | return ptr; |
1179 | return ptr; |
… | |
… | |
665 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
1196 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
666 | unsigned char unused; |
1197 | unsigned char unused; |
667 | #if EV_USE_EPOLL |
1198 | #if EV_USE_EPOLL |
668 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1199 | unsigned int egen; /* generation counter to counter epoll bugs */ |
669 | #endif |
1200 | #endif |
670 | #if EV_SELECT_IS_WINSOCKET |
1201 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
671 | SOCKET handle; |
1202 | SOCKET handle; |
|
|
1203 | #endif |
|
|
1204 | #if EV_USE_IOCP |
|
|
1205 | OVERLAPPED or, ow; |
672 | #endif |
1206 | #endif |
673 | } ANFD; |
1207 | } ANFD; |
674 | |
1208 | |
675 | /* stores the pending event set for a given watcher */ |
1209 | /* stores the pending event set for a given watcher */ |
676 | typedef struct |
1210 | typedef struct |
… | |
… | |
718 | #undef VAR |
1252 | #undef VAR |
719 | }; |
1253 | }; |
720 | #include "ev_wrap.h" |
1254 | #include "ev_wrap.h" |
721 | |
1255 | |
722 | static struct ev_loop default_loop_struct; |
1256 | static struct ev_loop default_loop_struct; |
723 | struct ev_loop *ev_default_loop_ptr; |
1257 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
724 | |
1258 | |
725 | #else |
1259 | #else |
726 | |
1260 | |
727 | ev_tstamp ev_rt_now; |
1261 | EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ |
728 | #define VAR(name,decl) static decl; |
1262 | #define VAR(name,decl) static decl; |
729 | #include "ev_vars.h" |
1263 | #include "ev_vars.h" |
730 | #undef VAR |
1264 | #undef VAR |
731 | |
1265 | |
732 | static int ev_default_loop_ptr; |
1266 | static int ev_default_loop_ptr; |
… | |
… | |
747 | |
1281 | |
748 | /*****************************************************************************/ |
1282 | /*****************************************************************************/ |
749 | |
1283 | |
750 | #ifndef EV_HAVE_EV_TIME |
1284 | #ifndef EV_HAVE_EV_TIME |
751 | ev_tstamp |
1285 | ev_tstamp |
752 | ev_time (void) |
1286 | ev_time (void) EV_THROW |
753 | { |
1287 | { |
754 | #if EV_USE_REALTIME |
1288 | #if EV_USE_REALTIME |
755 | if (expect_true (have_realtime)) |
1289 | if (expect_true (have_realtime)) |
756 | { |
1290 | { |
757 | struct timespec ts; |
1291 | struct timespec ts; |
… | |
… | |
781 | return ev_time (); |
1315 | return ev_time (); |
782 | } |
1316 | } |
783 | |
1317 | |
784 | #if EV_MULTIPLICITY |
1318 | #if EV_MULTIPLICITY |
785 | ev_tstamp |
1319 | ev_tstamp |
786 | ev_now (EV_P) |
1320 | ev_now (EV_P) EV_THROW |
787 | { |
1321 | { |
788 | return ev_rt_now; |
1322 | return ev_rt_now; |
789 | } |
1323 | } |
790 | #endif |
1324 | #endif |
791 | |
1325 | |
792 | void |
1326 | void |
793 | ev_sleep (ev_tstamp delay) |
1327 | ev_sleep (ev_tstamp delay) EV_THROW |
794 | { |
1328 | { |
795 | if (delay > 0.) |
1329 | if (delay > 0.) |
796 | { |
1330 | { |
797 | #if EV_USE_NANOSLEEP |
1331 | #if EV_USE_NANOSLEEP |
798 | struct timespec ts; |
1332 | struct timespec ts; |
799 | |
1333 | |
800 | EV_TS_SET (ts, delay); |
1334 | EV_TS_SET (ts, delay); |
801 | nanosleep (&ts, 0); |
1335 | nanosleep (&ts, 0); |
802 | #elif defined(_WIN32) |
1336 | #elif defined _WIN32 |
803 | Sleep ((unsigned long)(delay * 1e3)); |
1337 | Sleep ((unsigned long)(delay * 1e3)); |
804 | #else |
1338 | #else |
805 | struct timeval tv; |
1339 | struct timeval tv; |
806 | |
1340 | |
807 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
1341 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
… | |
… | |
826 | |
1360 | |
827 | do |
1361 | do |
828 | ncur <<= 1; |
1362 | ncur <<= 1; |
829 | while (cnt > ncur); |
1363 | while (cnt > ncur); |
830 | |
1364 | |
831 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
1365 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
832 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
1366 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
833 | { |
1367 | { |
834 | ncur *= elem; |
1368 | ncur *= elem; |
835 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
1369 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
836 | ncur = ncur - sizeof (void *) * 4; |
1370 | ncur = ncur - sizeof (void *) * 4; |
… | |
… | |
838 | } |
1372 | } |
839 | |
1373 | |
840 | return ncur; |
1374 | return ncur; |
841 | } |
1375 | } |
842 | |
1376 | |
843 | static noinline void * |
1377 | static void * noinline ecb_cold |
844 | array_realloc (int elem, void *base, int *cur, int cnt) |
1378 | array_realloc (int elem, void *base, int *cur, int cnt) |
845 | { |
1379 | { |
846 | *cur = array_nextsize (elem, *cur, cnt); |
1380 | *cur = array_nextsize (elem, *cur, cnt); |
847 | return ev_realloc (base, elem * *cur); |
1381 | return ev_realloc (base, elem * *cur); |
848 | } |
1382 | } |
… | |
… | |
851 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1385 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
852 | |
1386 | |
853 | #define array_needsize(type,base,cur,cnt,init) \ |
1387 | #define array_needsize(type,base,cur,cnt,init) \ |
854 | if (expect_false ((cnt) > (cur))) \ |
1388 | if (expect_false ((cnt) > (cur))) \ |
855 | { \ |
1389 | { \ |
856 | int ocur_ = (cur); \ |
1390 | int ecb_unused ocur_ = (cur); \ |
857 | (base) = (type *)array_realloc \ |
1391 | (base) = (type *)array_realloc \ |
858 | (sizeof (type), (base), &(cur), (cnt)); \ |
1392 | (sizeof (type), (base), &(cur), (cnt)); \ |
859 | init ((base) + (ocur_), (cur) - ocur_); \ |
1393 | init ((base) + (ocur_), (cur) - ocur_); \ |
860 | } |
1394 | } |
861 | |
1395 | |
… | |
… | |
879 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1413 | pendingcb (EV_P_ ev_prepare *w, int revents) |
880 | { |
1414 | { |
881 | } |
1415 | } |
882 | |
1416 | |
883 | void noinline |
1417 | void noinline |
884 | ev_feed_event (EV_P_ void *w, int revents) |
1418 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
885 | { |
1419 | { |
886 | W w_ = (W)w; |
1420 | W w_ = (W)w; |
887 | int pri = ABSPRI (w_); |
1421 | int pri = ABSPRI (w_); |
888 | |
1422 | |
889 | if (expect_false (w_->pending)) |
1423 | if (expect_false (w_->pending)) |
… | |
… | |
893 | w_->pending = ++pendingcnt [pri]; |
1427 | w_->pending = ++pendingcnt [pri]; |
894 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
1428 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
895 | pendings [pri][w_->pending - 1].w = w_; |
1429 | pendings [pri][w_->pending - 1].w = w_; |
896 | pendings [pri][w_->pending - 1].events = revents; |
1430 | pendings [pri][w_->pending - 1].events = revents; |
897 | } |
1431 | } |
|
|
1432 | |
|
|
1433 | pendingpri = NUMPRI - 1; |
898 | } |
1434 | } |
899 | |
1435 | |
900 | inline_speed void |
1436 | inline_speed void |
901 | feed_reverse (EV_P_ W w) |
1437 | feed_reverse (EV_P_ W w) |
902 | { |
1438 | { |
… | |
… | |
948 | if (expect_true (!anfd->reify)) |
1484 | if (expect_true (!anfd->reify)) |
949 | fd_event_nocheck (EV_A_ fd, revents); |
1485 | fd_event_nocheck (EV_A_ fd, revents); |
950 | } |
1486 | } |
951 | |
1487 | |
952 | void |
1488 | void |
953 | ev_feed_fd_event (EV_P_ int fd, int revents) |
1489 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW |
954 | { |
1490 | { |
955 | if (fd >= 0 && fd < anfdmax) |
1491 | if (fd >= 0 && fd < anfdmax) |
956 | fd_event_nocheck (EV_A_ fd, revents); |
1492 | fd_event_nocheck (EV_A_ fd, revents); |
957 | } |
1493 | } |
958 | |
1494 | |
… | |
… | |
961 | inline_size void |
1497 | inline_size void |
962 | fd_reify (EV_P) |
1498 | fd_reify (EV_P) |
963 | { |
1499 | { |
964 | int i; |
1500 | int i; |
965 | |
1501 | |
|
|
1502 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
1503 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1504 | { |
|
|
1505 | int fd = fdchanges [i]; |
|
|
1506 | ANFD *anfd = anfds + fd; |
|
|
1507 | |
|
|
1508 | if (anfd->reify & EV__IOFDSET && anfd->head) |
|
|
1509 | { |
|
|
1510 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
1511 | |
|
|
1512 | if (handle != anfd->handle) |
|
|
1513 | { |
|
|
1514 | unsigned long arg; |
|
|
1515 | |
|
|
1516 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0)); |
|
|
1517 | |
|
|
1518 | /* handle changed, but fd didn't - we need to do it in two steps */ |
|
|
1519 | backend_modify (EV_A_ fd, anfd->events, 0); |
|
|
1520 | anfd->events = 0; |
|
|
1521 | anfd->handle = handle; |
|
|
1522 | } |
|
|
1523 | } |
|
|
1524 | } |
|
|
1525 | #endif |
|
|
1526 | |
966 | for (i = 0; i < fdchangecnt; ++i) |
1527 | for (i = 0; i < fdchangecnt; ++i) |
967 | { |
1528 | { |
968 | int fd = fdchanges [i]; |
1529 | int fd = fdchanges [i]; |
969 | ANFD *anfd = anfds + fd; |
1530 | ANFD *anfd = anfds + fd; |
970 | ev_io *w; |
1531 | ev_io *w; |
… | |
… | |
972 | unsigned char o_events = anfd->events; |
1533 | unsigned char o_events = anfd->events; |
973 | unsigned char o_reify = anfd->reify; |
1534 | unsigned char o_reify = anfd->reify; |
974 | |
1535 | |
975 | anfd->reify = 0; |
1536 | anfd->reify = 0; |
976 | |
1537 | |
977 | #if EV_SELECT_IS_WINSOCKET |
|
|
978 | if (o_reify & EV__IOFDSET) |
|
|
979 | { |
|
|
980 | unsigned long arg; |
|
|
981 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
982 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
|
|
983 | } |
|
|
984 | #endif |
|
|
985 | |
|
|
986 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
1538 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
987 | { |
1539 | { |
988 | anfd->events = 0; |
1540 | anfd->events = 0; |
989 | |
1541 | |
990 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1542 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
1015 | fdchanges [fdchangecnt - 1] = fd; |
1567 | fdchanges [fdchangecnt - 1] = fd; |
1016 | } |
1568 | } |
1017 | } |
1569 | } |
1018 | |
1570 | |
1019 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1571 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1020 | inline_speed void |
1572 | inline_speed void ecb_cold |
1021 | fd_kill (EV_P_ int fd) |
1573 | fd_kill (EV_P_ int fd) |
1022 | { |
1574 | { |
1023 | ev_io *w; |
1575 | ev_io *w; |
1024 | |
1576 | |
1025 | while ((w = (ev_io *)anfds [fd].head)) |
1577 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
1028 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1580 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1029 | } |
1581 | } |
1030 | } |
1582 | } |
1031 | |
1583 | |
1032 | /* check whether the given fd is actually valid, for error recovery */ |
1584 | /* check whether the given fd is actually valid, for error recovery */ |
1033 | inline_size int |
1585 | inline_size int ecb_cold |
1034 | fd_valid (int fd) |
1586 | fd_valid (int fd) |
1035 | { |
1587 | { |
1036 | #ifdef _WIN32 |
1588 | #ifdef _WIN32 |
1037 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1589 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1038 | #else |
1590 | #else |
1039 | return fcntl (fd, F_GETFD) != -1; |
1591 | return fcntl (fd, F_GETFD) != -1; |
1040 | #endif |
1592 | #endif |
1041 | } |
1593 | } |
1042 | |
1594 | |
1043 | /* called on EBADF to verify fds */ |
1595 | /* called on EBADF to verify fds */ |
1044 | static void noinline |
1596 | static void noinline ecb_cold |
1045 | fd_ebadf (EV_P) |
1597 | fd_ebadf (EV_P) |
1046 | { |
1598 | { |
1047 | int fd; |
1599 | int fd; |
1048 | |
1600 | |
1049 | for (fd = 0; fd < anfdmax; ++fd) |
1601 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1051 | if (!fd_valid (fd) && errno == EBADF) |
1603 | if (!fd_valid (fd) && errno == EBADF) |
1052 | fd_kill (EV_A_ fd); |
1604 | fd_kill (EV_A_ fd); |
1053 | } |
1605 | } |
1054 | |
1606 | |
1055 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1607 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1056 | static void noinline |
1608 | static void noinline ecb_cold |
1057 | fd_enomem (EV_P) |
1609 | fd_enomem (EV_P) |
1058 | { |
1610 | { |
1059 | int fd; |
1611 | int fd; |
1060 | |
1612 | |
1061 | for (fd = anfdmax; fd--; ) |
1613 | for (fd = anfdmax; fd--; ) |
… | |
… | |
1256 | |
1808 | |
1257 | /*****************************************************************************/ |
1809 | /*****************************************************************************/ |
1258 | |
1810 | |
1259 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1811 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1260 | |
1812 | |
1261 | static void noinline |
1813 | static void noinline ecb_cold |
1262 | evpipe_init (EV_P) |
1814 | evpipe_init (EV_P) |
1263 | { |
1815 | { |
1264 | if (!ev_is_active (&pipe_w)) |
1816 | if (!ev_is_active (&pipe_w)) |
1265 | { |
1817 | { |
1266 | # if EV_USE_EVENTFD |
1818 | # if EV_USE_EVENTFD |
… | |
… | |
1288 | ev_io_start (EV_A_ &pipe_w); |
1840 | ev_io_start (EV_A_ &pipe_w); |
1289 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1841 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
1290 | } |
1842 | } |
1291 | } |
1843 | } |
1292 | |
1844 | |
1293 | inline_size void |
1845 | inline_speed void |
1294 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1846 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1295 | { |
1847 | { |
1296 | if (!*flag) |
1848 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
|
|
1849 | |
|
|
1850 | if (expect_true (*flag)) |
|
|
1851 | return; |
|
|
1852 | |
|
|
1853 | *flag = 1; |
|
|
1854 | |
|
|
1855 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
1856 | |
|
|
1857 | pipe_write_skipped = 1; |
|
|
1858 | |
|
|
1859 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
1860 | |
|
|
1861 | if (pipe_write_wanted) |
1297 | { |
1862 | { |
|
|
1863 | int old_errno; |
|
|
1864 | |
|
|
1865 | pipe_write_skipped = 0; /* just an optimisation, no fence needed */ |
|
|
1866 | |
1298 | int old_errno = errno; /* save errno because write might clobber it */ |
1867 | old_errno = errno; /* save errno because write will clobber it */ |
1299 | char dummy; |
|
|
1300 | |
|
|
1301 | *flag = 1; |
|
|
1302 | |
1868 | |
1303 | #if EV_USE_EVENTFD |
1869 | #if EV_USE_EVENTFD |
1304 | if (evfd >= 0) |
1870 | if (evfd >= 0) |
1305 | { |
1871 | { |
1306 | uint64_t counter = 1; |
1872 | uint64_t counter = 1; |
1307 | write (evfd, &counter, sizeof (uint64_t)); |
1873 | write (evfd, &counter, sizeof (uint64_t)); |
1308 | } |
1874 | } |
1309 | else |
1875 | else |
1310 | #endif |
1876 | #endif |
1311 | /* win32 people keep sending patches that change this write() to send() */ |
1877 | { |
1312 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
1878 | #ifdef _WIN32 |
1313 | /* so when you think this write should be a send instead, please find out */ |
1879 | WSABUF buf; |
1314 | /* where your send() is from - it's definitely not the microsoft send, and */ |
1880 | DWORD sent; |
1315 | /* tell me. thank you. */ |
1881 | buf.buf = &buf; |
|
|
1882 | buf.len = 1; |
|
|
1883 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
|
|
1884 | #else |
1316 | write (evpipe [1], &dummy, 1); |
1885 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
1886 | #endif |
|
|
1887 | } |
1317 | |
1888 | |
1318 | errno = old_errno; |
1889 | errno = old_errno; |
1319 | } |
1890 | } |
1320 | } |
1891 | } |
1321 | |
1892 | |
… | |
… | |
1324 | static void |
1895 | static void |
1325 | pipecb (EV_P_ ev_io *iow, int revents) |
1896 | pipecb (EV_P_ ev_io *iow, int revents) |
1326 | { |
1897 | { |
1327 | int i; |
1898 | int i; |
1328 | |
1899 | |
|
|
1900 | if (revents & EV_READ) |
|
|
1901 | { |
1329 | #if EV_USE_EVENTFD |
1902 | #if EV_USE_EVENTFD |
1330 | if (evfd >= 0) |
1903 | if (evfd >= 0) |
1331 | { |
1904 | { |
1332 | uint64_t counter; |
1905 | uint64_t counter; |
1333 | read (evfd, &counter, sizeof (uint64_t)); |
1906 | read (evfd, &counter, sizeof (uint64_t)); |
1334 | } |
1907 | } |
1335 | else |
1908 | else |
1336 | #endif |
1909 | #endif |
1337 | { |
1910 | { |
1338 | char dummy; |
1911 | char dummy[4]; |
1339 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
1912 | #ifdef _WIN32 |
|
|
1913 | WSABUF buf; |
|
|
1914 | DWORD recvd; |
|
|
1915 | buf.buf = dummy; |
|
|
1916 | buf.len = sizeof (dummy); |
|
|
1917 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, 0, 0, 0); |
|
|
1918 | #else |
1340 | read (evpipe [0], &dummy, 1); |
1919 | read (evpipe [0], &dummy, sizeof (dummy)); |
|
|
1920 | #endif |
|
|
1921 | } |
1341 | } |
1922 | } |
1342 | |
1923 | |
|
|
1924 | pipe_write_skipped = 0; |
|
|
1925 | |
|
|
1926 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
|
|
1927 | |
|
|
1928 | #if EV_SIGNAL_ENABLE |
1343 | if (sig_pending) |
1929 | if (sig_pending) |
1344 | { |
1930 | { |
1345 | sig_pending = 0; |
1931 | sig_pending = 0; |
|
|
1932 | |
|
|
1933 | ECB_MEMORY_FENCE_RELEASE; |
1346 | |
1934 | |
1347 | for (i = EV_NSIG - 1; i--; ) |
1935 | for (i = EV_NSIG - 1; i--; ) |
1348 | if (expect_false (signals [i].pending)) |
1936 | if (expect_false (signals [i].pending)) |
1349 | ev_feed_signal_event (EV_A_ i + 1); |
1937 | ev_feed_signal_event (EV_A_ i + 1); |
1350 | } |
1938 | } |
|
|
1939 | #endif |
1351 | |
1940 | |
1352 | #if EV_ASYNC_ENABLE |
1941 | #if EV_ASYNC_ENABLE |
1353 | if (async_pending) |
1942 | if (async_pending) |
1354 | { |
1943 | { |
1355 | async_pending = 0; |
1944 | async_pending = 0; |
|
|
1945 | |
|
|
1946 | ECB_MEMORY_FENCE_RELEASE; |
1356 | |
1947 | |
1357 | for (i = asynccnt; i--; ) |
1948 | for (i = asynccnt; i--; ) |
1358 | if (asyncs [i]->sent) |
1949 | if (asyncs [i]->sent) |
1359 | { |
1950 | { |
1360 | asyncs [i]->sent = 0; |
1951 | asyncs [i]->sent = 0; |
… | |
… | |
1364 | #endif |
1955 | #endif |
1365 | } |
1956 | } |
1366 | |
1957 | |
1367 | /*****************************************************************************/ |
1958 | /*****************************************************************************/ |
1368 | |
1959 | |
|
|
1960 | void |
|
|
1961 | ev_feed_signal (int signum) EV_THROW |
|
|
1962 | { |
|
|
1963 | #if EV_MULTIPLICITY |
|
|
1964 | EV_P = signals [signum - 1].loop; |
|
|
1965 | |
|
|
1966 | if (!EV_A) |
|
|
1967 | return; |
|
|
1968 | #endif |
|
|
1969 | |
|
|
1970 | if (!ev_active (&pipe_w)) |
|
|
1971 | return; |
|
|
1972 | |
|
|
1973 | signals [signum - 1].pending = 1; |
|
|
1974 | evpipe_write (EV_A_ &sig_pending); |
|
|
1975 | } |
|
|
1976 | |
1369 | static void |
1977 | static void |
1370 | ev_sighandler (int signum) |
1978 | ev_sighandler (int signum) |
1371 | { |
1979 | { |
1372 | #if EV_MULTIPLICITY |
|
|
1373 | EV_P = signals [signum - 1].loop; |
|
|
1374 | #endif |
|
|
1375 | |
|
|
1376 | #ifdef _WIN32 |
1980 | #ifdef _WIN32 |
1377 | signal (signum, ev_sighandler); |
1981 | signal (signum, ev_sighandler); |
1378 | #endif |
1982 | #endif |
1379 | |
1983 | |
1380 | signals [signum - 1].pending = 1; |
1984 | ev_feed_signal (signum); |
1381 | evpipe_write (EV_A_ &sig_pending); |
|
|
1382 | } |
1985 | } |
1383 | |
1986 | |
1384 | void noinline |
1987 | void noinline |
1385 | ev_feed_signal_event (EV_P_ int signum) |
1988 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
1386 | { |
1989 | { |
1387 | WL w; |
1990 | WL w; |
1388 | |
1991 | |
1389 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
1992 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
1390 | return; |
1993 | return; |
… | |
… | |
1486 | |
2089 | |
1487 | #endif |
2090 | #endif |
1488 | |
2091 | |
1489 | /*****************************************************************************/ |
2092 | /*****************************************************************************/ |
1490 | |
2093 | |
|
|
2094 | #if EV_USE_IOCP |
|
|
2095 | # include "ev_iocp.c" |
|
|
2096 | #endif |
1491 | #if EV_USE_PORT |
2097 | #if EV_USE_PORT |
1492 | # include "ev_port.c" |
2098 | # include "ev_port.c" |
1493 | #endif |
2099 | #endif |
1494 | #if EV_USE_KQUEUE |
2100 | #if EV_USE_KQUEUE |
1495 | # include "ev_kqueue.c" |
2101 | # include "ev_kqueue.c" |
… | |
… | |
1502 | #endif |
2108 | #endif |
1503 | #if EV_USE_SELECT |
2109 | #if EV_USE_SELECT |
1504 | # include "ev_select.c" |
2110 | # include "ev_select.c" |
1505 | #endif |
2111 | #endif |
1506 | |
2112 | |
1507 | int |
2113 | int ecb_cold |
1508 | ev_version_major (void) |
2114 | ev_version_major (void) EV_THROW |
1509 | { |
2115 | { |
1510 | return EV_VERSION_MAJOR; |
2116 | return EV_VERSION_MAJOR; |
1511 | } |
2117 | } |
1512 | |
2118 | |
1513 | int |
2119 | int ecb_cold |
1514 | ev_version_minor (void) |
2120 | ev_version_minor (void) EV_THROW |
1515 | { |
2121 | { |
1516 | return EV_VERSION_MINOR; |
2122 | return EV_VERSION_MINOR; |
1517 | } |
2123 | } |
1518 | |
2124 | |
1519 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2125 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1520 | int inline_size |
2126 | int inline_size ecb_cold |
1521 | enable_secure (void) |
2127 | enable_secure (void) |
1522 | { |
2128 | { |
1523 | #ifdef _WIN32 |
2129 | #ifdef _WIN32 |
1524 | return 0; |
2130 | return 0; |
1525 | #else |
2131 | #else |
1526 | return getuid () != geteuid () |
2132 | return getuid () != geteuid () |
1527 | || getgid () != getegid (); |
2133 | || getgid () != getegid (); |
1528 | #endif |
2134 | #endif |
1529 | } |
2135 | } |
1530 | |
2136 | |
1531 | unsigned int |
2137 | unsigned int ecb_cold |
1532 | ev_supported_backends (void) |
2138 | ev_supported_backends (void) EV_THROW |
1533 | { |
2139 | { |
1534 | unsigned int flags = 0; |
2140 | unsigned int flags = 0; |
1535 | |
2141 | |
1536 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2142 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
1537 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2143 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
… | |
… | |
1540 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2146 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
1541 | |
2147 | |
1542 | return flags; |
2148 | return flags; |
1543 | } |
2149 | } |
1544 | |
2150 | |
1545 | unsigned int |
2151 | unsigned int ecb_cold |
1546 | ev_recommended_backends (void) |
2152 | ev_recommended_backends (void) EV_THROW |
1547 | { |
2153 | { |
1548 | unsigned int flags = ev_supported_backends (); |
2154 | unsigned int flags = ev_supported_backends (); |
1549 | |
2155 | |
1550 | #ifndef __NetBSD__ |
2156 | #ifndef __NetBSD__ |
1551 | /* kqueue is borked on everything but netbsd apparently */ |
2157 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
1562 | #endif |
2168 | #endif |
1563 | |
2169 | |
1564 | return flags; |
2170 | return flags; |
1565 | } |
2171 | } |
1566 | |
2172 | |
1567 | unsigned int |
2173 | unsigned int ecb_cold |
1568 | ev_embeddable_backends (void) |
2174 | ev_embeddable_backends (void) EV_THROW |
1569 | { |
2175 | { |
1570 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
2176 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1571 | |
2177 | |
1572 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
2178 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1573 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
2179 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
… | |
… | |
1575 | |
2181 | |
1576 | return flags; |
2182 | return flags; |
1577 | } |
2183 | } |
1578 | |
2184 | |
1579 | unsigned int |
2185 | unsigned int |
1580 | ev_backend (EV_P) |
2186 | ev_backend (EV_P) EV_THROW |
1581 | { |
2187 | { |
1582 | return backend; |
2188 | return backend; |
1583 | } |
2189 | } |
1584 | |
2190 | |
1585 | #if EV_FEATURE_API |
2191 | #if EV_FEATURE_API |
1586 | unsigned int |
2192 | unsigned int |
1587 | ev_iteration (EV_P) |
2193 | ev_iteration (EV_P) EV_THROW |
1588 | { |
2194 | { |
1589 | return loop_count; |
2195 | return loop_count; |
1590 | } |
2196 | } |
1591 | |
2197 | |
1592 | unsigned int |
2198 | unsigned int |
1593 | ev_depth (EV_P) |
2199 | ev_depth (EV_P) EV_THROW |
1594 | { |
2200 | { |
1595 | return loop_depth; |
2201 | return loop_depth; |
1596 | } |
2202 | } |
1597 | |
2203 | |
1598 | void |
2204 | void |
1599 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
2205 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1600 | { |
2206 | { |
1601 | io_blocktime = interval; |
2207 | io_blocktime = interval; |
1602 | } |
2208 | } |
1603 | |
2209 | |
1604 | void |
2210 | void |
1605 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
2211 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1606 | { |
2212 | { |
1607 | timeout_blocktime = interval; |
2213 | timeout_blocktime = interval; |
1608 | } |
2214 | } |
1609 | |
2215 | |
1610 | void |
2216 | void |
1611 | ev_set_userdata (EV_P_ void *data) |
2217 | ev_set_userdata (EV_P_ void *data) EV_THROW |
1612 | { |
2218 | { |
1613 | userdata = data; |
2219 | userdata = data; |
1614 | } |
2220 | } |
1615 | |
2221 | |
1616 | void * |
2222 | void * |
1617 | ev_userdata (EV_P) |
2223 | ev_userdata (EV_P) EV_THROW |
1618 | { |
2224 | { |
1619 | return userdata; |
2225 | return userdata; |
1620 | } |
2226 | } |
1621 | |
2227 | |
|
|
2228 | void |
1622 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
2229 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW |
1623 | { |
2230 | { |
1624 | invoke_cb = invoke_pending_cb; |
2231 | invoke_cb = invoke_pending_cb; |
1625 | } |
2232 | } |
1626 | |
2233 | |
|
|
2234 | void |
1627 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
2235 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW |
1628 | { |
2236 | { |
1629 | release_cb = release; |
2237 | release_cb = release; |
1630 | acquire_cb = acquire; |
2238 | acquire_cb = acquire; |
1631 | } |
2239 | } |
1632 | #endif |
2240 | #endif |
1633 | |
2241 | |
1634 | /* initialise a loop structure, must be zero-initialised */ |
2242 | /* initialise a loop structure, must be zero-initialised */ |
1635 | static void noinline |
2243 | static void noinline ecb_cold |
1636 | loop_init (EV_P_ unsigned int flags) |
2244 | loop_init (EV_P_ unsigned int flags) EV_THROW |
1637 | { |
2245 | { |
1638 | if (!backend) |
2246 | if (!backend) |
1639 | { |
2247 | { |
|
|
2248 | origflags = flags; |
|
|
2249 | |
1640 | #if EV_USE_REALTIME |
2250 | #if EV_USE_REALTIME |
1641 | if (!have_realtime) |
2251 | if (!have_realtime) |
1642 | { |
2252 | { |
1643 | struct timespec ts; |
2253 | struct timespec ts; |
1644 | |
2254 | |
… | |
… | |
1666 | if (!(flags & EVFLAG_NOENV) |
2276 | if (!(flags & EVFLAG_NOENV) |
1667 | && !enable_secure () |
2277 | && !enable_secure () |
1668 | && getenv ("LIBEV_FLAGS")) |
2278 | && getenv ("LIBEV_FLAGS")) |
1669 | flags = atoi (getenv ("LIBEV_FLAGS")); |
2279 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1670 | |
2280 | |
1671 | ev_rt_now = ev_time (); |
2281 | ev_rt_now = ev_time (); |
1672 | mn_now = get_clock (); |
2282 | mn_now = get_clock (); |
1673 | now_floor = mn_now; |
2283 | now_floor = mn_now; |
1674 | rtmn_diff = ev_rt_now - mn_now; |
2284 | rtmn_diff = ev_rt_now - mn_now; |
1675 | #if EV_FEATURE_API |
2285 | #if EV_FEATURE_API |
1676 | invoke_cb = ev_invoke_pending; |
2286 | invoke_cb = ev_invoke_pending; |
1677 | #endif |
2287 | #endif |
1678 | |
2288 | |
1679 | io_blocktime = 0.; |
2289 | io_blocktime = 0.; |
1680 | timeout_blocktime = 0.; |
2290 | timeout_blocktime = 0.; |
1681 | backend = 0; |
2291 | backend = 0; |
1682 | backend_fd = -1; |
2292 | backend_fd = -1; |
1683 | sig_pending = 0; |
2293 | sig_pending = 0; |
1684 | #if EV_ASYNC_ENABLE |
2294 | #if EV_ASYNC_ENABLE |
1685 | async_pending = 0; |
2295 | async_pending = 0; |
1686 | #endif |
2296 | #endif |
|
|
2297 | pipe_write_skipped = 0; |
|
|
2298 | pipe_write_wanted = 0; |
1687 | #if EV_USE_INOTIFY |
2299 | #if EV_USE_INOTIFY |
1688 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2300 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1689 | #endif |
2301 | #endif |
1690 | #if EV_USE_SIGNALFD |
2302 | #if EV_USE_SIGNALFD |
1691 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
2303 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1692 | #endif |
2304 | #endif |
1693 | |
2305 | |
1694 | if (!(flags & 0x0000ffffU)) |
2306 | if (!(flags & EVBACKEND_MASK)) |
1695 | flags |= ev_recommended_backends (); |
2307 | flags |= ev_recommended_backends (); |
1696 | |
2308 | |
|
|
2309 | #if EV_USE_IOCP |
|
|
2310 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
2311 | #endif |
1697 | #if EV_USE_PORT |
2312 | #if EV_USE_PORT |
1698 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
2313 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1699 | #endif |
2314 | #endif |
1700 | #if EV_USE_KQUEUE |
2315 | #if EV_USE_KQUEUE |
1701 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
2316 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
1718 | #endif |
2333 | #endif |
1719 | } |
2334 | } |
1720 | } |
2335 | } |
1721 | |
2336 | |
1722 | /* free up a loop structure */ |
2337 | /* free up a loop structure */ |
1723 | static void noinline |
2338 | void ecb_cold |
1724 | loop_destroy (EV_P) |
2339 | ev_loop_destroy (EV_P) |
1725 | { |
2340 | { |
1726 | int i; |
2341 | int i; |
|
|
2342 | |
|
|
2343 | #if EV_MULTIPLICITY |
|
|
2344 | /* mimic free (0) */ |
|
|
2345 | if (!EV_A) |
|
|
2346 | return; |
|
|
2347 | #endif |
|
|
2348 | |
|
|
2349 | #if EV_CLEANUP_ENABLE |
|
|
2350 | /* queue cleanup watchers (and execute them) */ |
|
|
2351 | if (expect_false (cleanupcnt)) |
|
|
2352 | { |
|
|
2353 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
2354 | EV_INVOKE_PENDING; |
|
|
2355 | } |
|
|
2356 | #endif |
|
|
2357 | |
|
|
2358 | #if EV_CHILD_ENABLE |
|
|
2359 | if (ev_is_active (&childev)) |
|
|
2360 | { |
|
|
2361 | ev_ref (EV_A); /* child watcher */ |
|
|
2362 | ev_signal_stop (EV_A_ &childev); |
|
|
2363 | } |
|
|
2364 | #endif |
1727 | |
2365 | |
1728 | if (ev_is_active (&pipe_w)) |
2366 | if (ev_is_active (&pipe_w)) |
1729 | { |
2367 | { |
1730 | /*ev_ref (EV_A);*/ |
2368 | /*ev_ref (EV_A);*/ |
1731 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2369 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
… | |
… | |
1753 | #endif |
2391 | #endif |
1754 | |
2392 | |
1755 | if (backend_fd >= 0) |
2393 | if (backend_fd >= 0) |
1756 | close (backend_fd); |
2394 | close (backend_fd); |
1757 | |
2395 | |
|
|
2396 | #if EV_USE_IOCP |
|
|
2397 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
2398 | #endif |
1758 | #if EV_USE_PORT |
2399 | #if EV_USE_PORT |
1759 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
2400 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1760 | #endif |
2401 | #endif |
1761 | #if EV_USE_KQUEUE |
2402 | #if EV_USE_KQUEUE |
1762 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
2403 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
… | |
… | |
1789 | array_free (periodic, EMPTY); |
2430 | array_free (periodic, EMPTY); |
1790 | #endif |
2431 | #endif |
1791 | #if EV_FORK_ENABLE |
2432 | #if EV_FORK_ENABLE |
1792 | array_free (fork, EMPTY); |
2433 | array_free (fork, EMPTY); |
1793 | #endif |
2434 | #endif |
|
|
2435 | #if EV_CLEANUP_ENABLE |
|
|
2436 | array_free (cleanup, EMPTY); |
|
|
2437 | #endif |
1794 | array_free (prepare, EMPTY); |
2438 | array_free (prepare, EMPTY); |
1795 | array_free (check, EMPTY); |
2439 | array_free (check, EMPTY); |
1796 | #if EV_ASYNC_ENABLE |
2440 | #if EV_ASYNC_ENABLE |
1797 | array_free (async, EMPTY); |
2441 | array_free (async, EMPTY); |
1798 | #endif |
2442 | #endif |
1799 | |
2443 | |
1800 | backend = 0; |
2444 | backend = 0; |
|
|
2445 | |
|
|
2446 | #if EV_MULTIPLICITY |
|
|
2447 | if (ev_is_default_loop (EV_A)) |
|
|
2448 | #endif |
|
|
2449 | ev_default_loop_ptr = 0; |
|
|
2450 | #if EV_MULTIPLICITY |
|
|
2451 | else |
|
|
2452 | ev_free (EV_A); |
|
|
2453 | #endif |
1801 | } |
2454 | } |
1802 | |
2455 | |
1803 | #if EV_USE_INOTIFY |
2456 | #if EV_USE_INOTIFY |
1804 | inline_size void infy_fork (EV_P); |
2457 | inline_size void infy_fork (EV_P); |
1805 | #endif |
2458 | #endif |
… | |
… | |
1820 | infy_fork (EV_A); |
2473 | infy_fork (EV_A); |
1821 | #endif |
2474 | #endif |
1822 | |
2475 | |
1823 | if (ev_is_active (&pipe_w)) |
2476 | if (ev_is_active (&pipe_w)) |
1824 | { |
2477 | { |
1825 | /* this "locks" the handlers against writing to the pipe */ |
2478 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
1826 | /* while we modify the fd vars */ |
|
|
1827 | sig_pending = 1; |
|
|
1828 | #if EV_ASYNC_ENABLE |
|
|
1829 | async_pending = 1; |
|
|
1830 | #endif |
|
|
1831 | |
2479 | |
1832 | ev_ref (EV_A); |
2480 | ev_ref (EV_A); |
1833 | ev_io_stop (EV_A_ &pipe_w); |
2481 | ev_io_stop (EV_A_ &pipe_w); |
1834 | |
2482 | |
1835 | #if EV_USE_EVENTFD |
2483 | #if EV_USE_EVENTFD |
… | |
… | |
1853 | postfork = 0; |
2501 | postfork = 0; |
1854 | } |
2502 | } |
1855 | |
2503 | |
1856 | #if EV_MULTIPLICITY |
2504 | #if EV_MULTIPLICITY |
1857 | |
2505 | |
1858 | struct ev_loop * |
2506 | struct ev_loop * ecb_cold |
1859 | ev_loop_new (unsigned int flags) |
2507 | ev_loop_new (unsigned int flags) EV_THROW |
1860 | { |
2508 | { |
1861 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2509 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1862 | |
2510 | |
1863 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2511 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1864 | loop_init (EV_A_ flags); |
2512 | loop_init (EV_A_ flags); |
1865 | |
2513 | |
1866 | if (ev_backend (EV_A)) |
2514 | if (ev_backend (EV_A)) |
1867 | return EV_A; |
2515 | return EV_A; |
1868 | |
2516 | |
|
|
2517 | ev_free (EV_A); |
1869 | return 0; |
2518 | return 0; |
1870 | } |
2519 | } |
1871 | |
2520 | |
1872 | void |
|
|
1873 | ev_loop_destroy (EV_P) |
|
|
1874 | { |
|
|
1875 | loop_destroy (EV_A); |
|
|
1876 | ev_free (loop); |
|
|
1877 | } |
|
|
1878 | |
|
|
1879 | void |
|
|
1880 | ev_loop_fork (EV_P) |
|
|
1881 | { |
|
|
1882 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1883 | } |
|
|
1884 | #endif /* multiplicity */ |
2521 | #endif /* multiplicity */ |
1885 | |
2522 | |
1886 | #if EV_VERIFY |
2523 | #if EV_VERIFY |
1887 | static void noinline |
2524 | static void noinline ecb_cold |
1888 | verify_watcher (EV_P_ W w) |
2525 | verify_watcher (EV_P_ W w) |
1889 | { |
2526 | { |
1890 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2527 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1891 | |
2528 | |
1892 | if (w->pending) |
2529 | if (w->pending) |
1893 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2530 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1894 | } |
2531 | } |
1895 | |
2532 | |
1896 | static void noinline |
2533 | static void noinline ecb_cold |
1897 | verify_heap (EV_P_ ANHE *heap, int N) |
2534 | verify_heap (EV_P_ ANHE *heap, int N) |
1898 | { |
2535 | { |
1899 | int i; |
2536 | int i; |
1900 | |
2537 | |
1901 | for (i = HEAP0; i < N + HEAP0; ++i) |
2538 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
1906 | |
2543 | |
1907 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2544 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1908 | } |
2545 | } |
1909 | } |
2546 | } |
1910 | |
2547 | |
1911 | static void noinline |
2548 | static void noinline ecb_cold |
1912 | array_verify (EV_P_ W *ws, int cnt) |
2549 | array_verify (EV_P_ W *ws, int cnt) |
1913 | { |
2550 | { |
1914 | while (cnt--) |
2551 | while (cnt--) |
1915 | { |
2552 | { |
1916 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
2553 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
… | |
… | |
1918 | } |
2555 | } |
1919 | } |
2556 | } |
1920 | #endif |
2557 | #endif |
1921 | |
2558 | |
1922 | #if EV_FEATURE_API |
2559 | #if EV_FEATURE_API |
1923 | void |
2560 | void ecb_cold |
1924 | ev_verify (EV_P) |
2561 | ev_verify (EV_P) EV_THROW |
1925 | { |
2562 | { |
1926 | #if EV_VERIFY |
2563 | #if EV_VERIFY |
1927 | int i; |
2564 | int i; |
1928 | WL w; |
2565 | WL w, w2; |
1929 | |
2566 | |
1930 | assert (activecnt >= -1); |
2567 | assert (activecnt >= -1); |
1931 | |
2568 | |
1932 | assert (fdchangemax >= fdchangecnt); |
2569 | assert (fdchangemax >= fdchangecnt); |
1933 | for (i = 0; i < fdchangecnt; ++i) |
2570 | for (i = 0; i < fdchangecnt; ++i) |
1934 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
2571 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
1935 | |
2572 | |
1936 | assert (anfdmax >= 0); |
2573 | assert (anfdmax >= 0); |
1937 | for (i = 0; i < anfdmax; ++i) |
2574 | for (i = 0; i < anfdmax; ++i) |
|
|
2575 | { |
|
|
2576 | int j = 0; |
|
|
2577 | |
1938 | for (w = anfds [i].head; w; w = w->next) |
2578 | for (w = w2 = anfds [i].head; w; w = w->next) |
1939 | { |
2579 | { |
1940 | verify_watcher (EV_A_ (W)w); |
2580 | verify_watcher (EV_A_ (W)w); |
|
|
2581 | |
|
|
2582 | if (j++ & 1) |
|
|
2583 | { |
|
|
2584 | assert (("libev: io watcher list contains a loop", w != w2)); |
|
|
2585 | w2 = w2->next; |
|
|
2586 | } |
|
|
2587 | |
1941 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
2588 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
1942 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
2589 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1943 | } |
2590 | } |
|
|
2591 | } |
1944 | |
2592 | |
1945 | assert (timermax >= timercnt); |
2593 | assert (timermax >= timercnt); |
1946 | verify_heap (EV_A_ timers, timercnt); |
2594 | verify_heap (EV_A_ timers, timercnt); |
1947 | |
2595 | |
1948 | #if EV_PERIODIC_ENABLE |
2596 | #if EV_PERIODIC_ENABLE |
… | |
… | |
1963 | #if EV_FORK_ENABLE |
2611 | #if EV_FORK_ENABLE |
1964 | assert (forkmax >= forkcnt); |
2612 | assert (forkmax >= forkcnt); |
1965 | array_verify (EV_A_ (W *)forks, forkcnt); |
2613 | array_verify (EV_A_ (W *)forks, forkcnt); |
1966 | #endif |
2614 | #endif |
1967 | |
2615 | |
|
|
2616 | #if EV_CLEANUP_ENABLE |
|
|
2617 | assert (cleanupmax >= cleanupcnt); |
|
|
2618 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
2619 | #endif |
|
|
2620 | |
1968 | #if EV_ASYNC_ENABLE |
2621 | #if EV_ASYNC_ENABLE |
1969 | assert (asyncmax >= asynccnt); |
2622 | assert (asyncmax >= asynccnt); |
1970 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
2623 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1971 | #endif |
2624 | #endif |
1972 | |
2625 | |
… | |
… | |
1989 | #endif |
2642 | #endif |
1990 | } |
2643 | } |
1991 | #endif |
2644 | #endif |
1992 | |
2645 | |
1993 | #if EV_MULTIPLICITY |
2646 | #if EV_MULTIPLICITY |
1994 | struct ev_loop * |
2647 | struct ev_loop * ecb_cold |
1995 | ev_default_loop_init (unsigned int flags) |
|
|
1996 | #else |
2648 | #else |
1997 | int |
2649 | int |
|
|
2650 | #endif |
1998 | ev_default_loop (unsigned int flags) |
2651 | ev_default_loop (unsigned int flags) EV_THROW |
1999 | #endif |
|
|
2000 | { |
2652 | { |
2001 | if (!ev_default_loop_ptr) |
2653 | if (!ev_default_loop_ptr) |
2002 | { |
2654 | { |
2003 | #if EV_MULTIPLICITY |
2655 | #if EV_MULTIPLICITY |
2004 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
2656 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
2023 | |
2675 | |
2024 | return ev_default_loop_ptr; |
2676 | return ev_default_loop_ptr; |
2025 | } |
2677 | } |
2026 | |
2678 | |
2027 | void |
2679 | void |
2028 | ev_default_destroy (void) |
2680 | ev_loop_fork (EV_P) EV_THROW |
2029 | { |
2681 | { |
2030 | #if EV_MULTIPLICITY |
|
|
2031 | EV_P = ev_default_loop_ptr; |
|
|
2032 | #endif |
|
|
2033 | |
|
|
2034 | ev_default_loop_ptr = 0; |
|
|
2035 | |
|
|
2036 | #if EV_CHILD_ENABLE |
|
|
2037 | ev_ref (EV_A); /* child watcher */ |
|
|
2038 | ev_signal_stop (EV_A_ &childev); |
|
|
2039 | #endif |
|
|
2040 | |
|
|
2041 | loop_destroy (EV_A); |
|
|
2042 | } |
|
|
2043 | |
|
|
2044 | void |
|
|
2045 | ev_default_fork (void) |
|
|
2046 | { |
|
|
2047 | #if EV_MULTIPLICITY |
|
|
2048 | EV_P = ev_default_loop_ptr; |
|
|
2049 | #endif |
|
|
2050 | |
|
|
2051 | postfork = 1; /* must be in line with ev_loop_fork */ |
2682 | postfork = 1; /* must be in line with ev_default_fork */ |
2052 | } |
2683 | } |
2053 | |
2684 | |
2054 | /*****************************************************************************/ |
2685 | /*****************************************************************************/ |
2055 | |
2686 | |
2056 | void |
2687 | void |
… | |
… | |
2058 | { |
2689 | { |
2059 | EV_CB_INVOKE ((W)w, revents); |
2690 | EV_CB_INVOKE ((W)w, revents); |
2060 | } |
2691 | } |
2061 | |
2692 | |
2062 | unsigned int |
2693 | unsigned int |
2063 | ev_pending_count (EV_P) |
2694 | ev_pending_count (EV_P) EV_THROW |
2064 | { |
2695 | { |
2065 | int pri; |
2696 | int pri; |
2066 | unsigned int count = 0; |
2697 | unsigned int count = 0; |
2067 | |
2698 | |
2068 | for (pri = NUMPRI; pri--; ) |
2699 | for (pri = NUMPRI; pri--; ) |
… | |
… | |
2072 | } |
2703 | } |
2073 | |
2704 | |
2074 | void noinline |
2705 | void noinline |
2075 | ev_invoke_pending (EV_P) |
2706 | ev_invoke_pending (EV_P) |
2076 | { |
2707 | { |
2077 | int pri; |
2708 | for (pendingpri = NUMPRI; pendingpri--; ) /* pendingpri is modified during the loop */ |
2078 | |
|
|
2079 | for (pri = NUMPRI; pri--; ) |
|
|
2080 | while (pendingcnt [pri]) |
2709 | while (pendingcnt [pendingpri]) |
2081 | { |
2710 | { |
2082 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2711 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2083 | |
|
|
2084 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
2085 | /* ^ this is no longer true, as pending_w could be here */ |
|
|
2086 | |
2712 | |
2087 | p->w->pending = 0; |
2713 | p->w->pending = 0; |
2088 | EV_CB_INVOKE (p->w, p->events); |
2714 | EV_CB_INVOKE (p->w, p->events); |
2089 | EV_FREQUENT_CHECK; |
2715 | EV_FREQUENT_CHECK; |
2090 | } |
2716 | } |
… | |
… | |
2152 | feed_reverse_done (EV_A_ EV_TIMER); |
2778 | feed_reverse_done (EV_A_ EV_TIMER); |
2153 | } |
2779 | } |
2154 | } |
2780 | } |
2155 | |
2781 | |
2156 | #if EV_PERIODIC_ENABLE |
2782 | #if EV_PERIODIC_ENABLE |
|
|
2783 | |
|
|
2784 | static void noinline |
|
|
2785 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
2786 | { |
|
|
2787 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
|
|
2788 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
|
|
2789 | |
|
|
2790 | /* the above almost always errs on the low side */ |
|
|
2791 | while (at <= ev_rt_now) |
|
|
2792 | { |
|
|
2793 | ev_tstamp nat = at + w->interval; |
|
|
2794 | |
|
|
2795 | /* when resolution fails us, we use ev_rt_now */ |
|
|
2796 | if (expect_false (nat == at)) |
|
|
2797 | { |
|
|
2798 | at = ev_rt_now; |
|
|
2799 | break; |
|
|
2800 | } |
|
|
2801 | |
|
|
2802 | at = nat; |
|
|
2803 | } |
|
|
2804 | |
|
|
2805 | ev_at (w) = at; |
|
|
2806 | } |
|
|
2807 | |
2157 | /* make periodics pending */ |
2808 | /* make periodics pending */ |
2158 | inline_size void |
2809 | inline_size void |
2159 | periodics_reify (EV_P) |
2810 | periodics_reify (EV_P) |
2160 | { |
2811 | { |
2161 | EV_FREQUENT_CHECK; |
2812 | EV_FREQUENT_CHECK; |
… | |
… | |
2180 | ANHE_at_cache (periodics [HEAP0]); |
2831 | ANHE_at_cache (periodics [HEAP0]); |
2181 | downheap (periodics, periodiccnt, HEAP0); |
2832 | downheap (periodics, periodiccnt, HEAP0); |
2182 | } |
2833 | } |
2183 | else if (w->interval) |
2834 | else if (w->interval) |
2184 | { |
2835 | { |
2185 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2836 | periodic_recalc (EV_A_ w); |
2186 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2187 | /* this might happen because of floating point inexactness */ |
|
|
2188 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2189 | { |
|
|
2190 | ev_at (w) += w->interval; |
|
|
2191 | |
|
|
2192 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2193 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2194 | /* has effectively asked to get triggered more often than possible */ |
|
|
2195 | if (ev_at (w) < ev_rt_now) |
|
|
2196 | ev_at (w) = ev_rt_now; |
|
|
2197 | } |
|
|
2198 | |
|
|
2199 | ANHE_at_cache (periodics [HEAP0]); |
2837 | ANHE_at_cache (periodics [HEAP0]); |
2200 | downheap (periodics, periodiccnt, HEAP0); |
2838 | downheap (periodics, periodiccnt, HEAP0); |
2201 | } |
2839 | } |
2202 | else |
2840 | else |
2203 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
2841 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
… | |
… | |
2211 | } |
2849 | } |
2212 | } |
2850 | } |
2213 | |
2851 | |
2214 | /* simply recalculate all periodics */ |
2852 | /* simply recalculate all periodics */ |
2215 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2853 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2216 | static void noinline |
2854 | static void noinline ecb_cold |
2217 | periodics_reschedule (EV_P) |
2855 | periodics_reschedule (EV_P) |
2218 | { |
2856 | { |
2219 | int i; |
2857 | int i; |
2220 | |
2858 | |
2221 | /* adjust periodics after time jump */ |
2859 | /* adjust periodics after time jump */ |
… | |
… | |
2224 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
2862 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
2225 | |
2863 | |
2226 | if (w->reschedule_cb) |
2864 | if (w->reschedule_cb) |
2227 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2865 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2228 | else if (w->interval) |
2866 | else if (w->interval) |
2229 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2867 | periodic_recalc (EV_A_ w); |
2230 | |
2868 | |
2231 | ANHE_at_cache (periodics [i]); |
2869 | ANHE_at_cache (periodics [i]); |
2232 | } |
2870 | } |
2233 | |
2871 | |
2234 | reheap (periodics, periodiccnt); |
2872 | reheap (periodics, periodiccnt); |
2235 | } |
2873 | } |
2236 | #endif |
2874 | #endif |
2237 | |
2875 | |
2238 | /* adjust all timers by a given offset */ |
2876 | /* adjust all timers by a given offset */ |
2239 | static void noinline |
2877 | static void noinline ecb_cold |
2240 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2878 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2241 | { |
2879 | { |
2242 | int i; |
2880 | int i; |
2243 | |
2881 | |
2244 | for (i = 0; i < timercnt; ++i) |
2882 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
2281 | * doesn't hurt either as we only do this on time-jumps or |
2919 | * doesn't hurt either as we only do this on time-jumps or |
2282 | * in the unlikely event of having been preempted here. |
2920 | * in the unlikely event of having been preempted here. |
2283 | */ |
2921 | */ |
2284 | for (i = 4; --i; ) |
2922 | for (i = 4; --i; ) |
2285 | { |
2923 | { |
|
|
2924 | ev_tstamp diff; |
2286 | rtmn_diff = ev_rt_now - mn_now; |
2925 | rtmn_diff = ev_rt_now - mn_now; |
2287 | |
2926 | |
|
|
2927 | diff = odiff - rtmn_diff; |
|
|
2928 | |
2288 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
2929 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
2289 | return; /* all is well */ |
2930 | return; /* all is well */ |
2290 | |
2931 | |
2291 | ev_rt_now = ev_time (); |
2932 | ev_rt_now = ev_time (); |
2292 | mn_now = get_clock (); |
2933 | mn_now = get_clock (); |
2293 | now_floor = mn_now; |
2934 | now_floor = mn_now; |
… | |
… | |
2315 | |
2956 | |
2316 | mn_now = ev_rt_now; |
2957 | mn_now = ev_rt_now; |
2317 | } |
2958 | } |
2318 | } |
2959 | } |
2319 | |
2960 | |
2320 | void |
2961 | int |
2321 | ev_run (EV_P_ int flags) |
2962 | ev_run (EV_P_ int flags) |
2322 | { |
2963 | { |
2323 | #if EV_FEATURE_API |
2964 | #if EV_FEATURE_API |
2324 | ++loop_depth; |
2965 | ++loop_depth; |
2325 | #endif |
2966 | #endif |
… | |
… | |
2383 | ev_tstamp prev_mn_now = mn_now; |
3024 | ev_tstamp prev_mn_now = mn_now; |
2384 | |
3025 | |
2385 | /* update time to cancel out callback processing overhead */ |
3026 | /* update time to cancel out callback processing overhead */ |
2386 | time_update (EV_A_ 1e100); |
3027 | time_update (EV_A_ 1e100); |
2387 | |
3028 | |
|
|
3029 | /* from now on, we want a pipe-wake-up */ |
|
|
3030 | pipe_write_wanted = 1; |
|
|
3031 | |
|
|
3032 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
3033 | |
2388 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt))) |
3034 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
2389 | { |
3035 | { |
2390 | waittime = MAX_BLOCKTIME; |
3036 | waittime = MAX_BLOCKTIME; |
2391 | |
3037 | |
2392 | if (timercnt) |
3038 | if (timercnt) |
2393 | { |
3039 | { |
2394 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
3040 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
2395 | if (waittime > to) waittime = to; |
3041 | if (waittime > to) waittime = to; |
2396 | } |
3042 | } |
2397 | |
3043 | |
2398 | #if EV_PERIODIC_ENABLE |
3044 | #if EV_PERIODIC_ENABLE |
2399 | if (periodiccnt) |
3045 | if (periodiccnt) |
2400 | { |
3046 | { |
2401 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
3047 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now; |
2402 | if (waittime > to) waittime = to; |
3048 | if (waittime > to) waittime = to; |
2403 | } |
3049 | } |
2404 | #endif |
3050 | #endif |
2405 | |
3051 | |
2406 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3052 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2407 | if (expect_false (waittime < timeout_blocktime)) |
3053 | if (expect_false (waittime < timeout_blocktime)) |
2408 | waittime = timeout_blocktime; |
3054 | waittime = timeout_blocktime; |
|
|
3055 | |
|
|
3056 | /* at this point, we NEED to wait, so we have to ensure */ |
|
|
3057 | /* to pass a minimum nonzero value to the backend */ |
|
|
3058 | if (expect_false (waittime < backend_mintime)) |
|
|
3059 | waittime = backend_mintime; |
2409 | |
3060 | |
2410 | /* extra check because io_blocktime is commonly 0 */ |
3061 | /* extra check because io_blocktime is commonly 0 */ |
2411 | if (expect_false (io_blocktime)) |
3062 | if (expect_false (io_blocktime)) |
2412 | { |
3063 | { |
2413 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
3064 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
2414 | |
3065 | |
2415 | if (sleeptime > waittime - backend_fudge) |
3066 | if (sleeptime > waittime - backend_mintime) |
2416 | sleeptime = waittime - backend_fudge; |
3067 | sleeptime = waittime - backend_mintime; |
2417 | |
3068 | |
2418 | if (expect_true (sleeptime > 0.)) |
3069 | if (expect_true (sleeptime > 0.)) |
2419 | { |
3070 | { |
2420 | ev_sleep (sleeptime); |
3071 | ev_sleep (sleeptime); |
2421 | waittime -= sleeptime; |
3072 | waittime -= sleeptime; |
… | |
… | |
2428 | #endif |
3079 | #endif |
2429 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
3080 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2430 | backend_poll (EV_A_ waittime); |
3081 | backend_poll (EV_A_ waittime); |
2431 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
3082 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
2432 | |
3083 | |
|
|
3084 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
|
|
3085 | |
|
|
3086 | if (pipe_write_skipped) |
|
|
3087 | { |
|
|
3088 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
3089 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
3090 | } |
|
|
3091 | |
|
|
3092 | |
2433 | /* update ev_rt_now, do magic */ |
3093 | /* update ev_rt_now, do magic */ |
2434 | time_update (EV_A_ waittime + sleeptime); |
3094 | time_update (EV_A_ waittime + sleeptime); |
2435 | } |
3095 | } |
2436 | |
3096 | |
2437 | /* queue pending timers and reschedule them */ |
3097 | /* queue pending timers and reschedule them */ |
… | |
… | |
2463 | loop_done = EVBREAK_CANCEL; |
3123 | loop_done = EVBREAK_CANCEL; |
2464 | |
3124 | |
2465 | #if EV_FEATURE_API |
3125 | #if EV_FEATURE_API |
2466 | --loop_depth; |
3126 | --loop_depth; |
2467 | #endif |
3127 | #endif |
|
|
3128 | |
|
|
3129 | return activecnt; |
2468 | } |
3130 | } |
2469 | |
3131 | |
2470 | void |
3132 | void |
2471 | ev_break (EV_P_ int how) |
3133 | ev_break (EV_P_ int how) EV_THROW |
2472 | { |
3134 | { |
2473 | loop_done = how; |
3135 | loop_done = how; |
2474 | } |
3136 | } |
2475 | |
3137 | |
2476 | void |
3138 | void |
2477 | ev_ref (EV_P) |
3139 | ev_ref (EV_P) EV_THROW |
2478 | { |
3140 | { |
2479 | ++activecnt; |
3141 | ++activecnt; |
2480 | } |
3142 | } |
2481 | |
3143 | |
2482 | void |
3144 | void |
2483 | ev_unref (EV_P) |
3145 | ev_unref (EV_P) EV_THROW |
2484 | { |
3146 | { |
2485 | --activecnt; |
3147 | --activecnt; |
2486 | } |
3148 | } |
2487 | |
3149 | |
2488 | void |
3150 | void |
2489 | ev_now_update (EV_P) |
3151 | ev_now_update (EV_P) EV_THROW |
2490 | { |
3152 | { |
2491 | time_update (EV_A_ 1e100); |
3153 | time_update (EV_A_ 1e100); |
2492 | } |
3154 | } |
2493 | |
3155 | |
2494 | void |
3156 | void |
2495 | ev_suspend (EV_P) |
3157 | ev_suspend (EV_P) EV_THROW |
2496 | { |
3158 | { |
2497 | ev_now_update (EV_A); |
3159 | ev_now_update (EV_A); |
2498 | } |
3160 | } |
2499 | |
3161 | |
2500 | void |
3162 | void |
2501 | ev_resume (EV_P) |
3163 | ev_resume (EV_P) EV_THROW |
2502 | { |
3164 | { |
2503 | ev_tstamp mn_prev = mn_now; |
3165 | ev_tstamp mn_prev = mn_now; |
2504 | |
3166 | |
2505 | ev_now_update (EV_A); |
3167 | ev_now_update (EV_A); |
2506 | timers_reschedule (EV_A_ mn_now - mn_prev); |
3168 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
2545 | w->pending = 0; |
3207 | w->pending = 0; |
2546 | } |
3208 | } |
2547 | } |
3209 | } |
2548 | |
3210 | |
2549 | int |
3211 | int |
2550 | ev_clear_pending (EV_P_ void *w) |
3212 | ev_clear_pending (EV_P_ void *w) EV_THROW |
2551 | { |
3213 | { |
2552 | W w_ = (W)w; |
3214 | W w_ = (W)w; |
2553 | int pending = w_->pending; |
3215 | int pending = w_->pending; |
2554 | |
3216 | |
2555 | if (expect_true (pending)) |
3217 | if (expect_true (pending)) |
… | |
… | |
2588 | } |
3250 | } |
2589 | |
3251 | |
2590 | /*****************************************************************************/ |
3252 | /*****************************************************************************/ |
2591 | |
3253 | |
2592 | void noinline |
3254 | void noinline |
2593 | ev_io_start (EV_P_ ev_io *w) |
3255 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
2594 | { |
3256 | { |
2595 | int fd = w->fd; |
3257 | int fd = w->fd; |
2596 | |
3258 | |
2597 | if (expect_false (ev_is_active (w))) |
3259 | if (expect_false (ev_is_active (w))) |
2598 | return; |
3260 | return; |
… | |
… | |
2604 | |
3266 | |
2605 | ev_start (EV_A_ (W)w, 1); |
3267 | ev_start (EV_A_ (W)w, 1); |
2606 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
3268 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2607 | wlist_add (&anfds[fd].head, (WL)w); |
3269 | wlist_add (&anfds[fd].head, (WL)w); |
2608 | |
3270 | |
|
|
3271 | /* common bug, apparently */ |
|
|
3272 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
|
|
3273 | |
2609 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
3274 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2610 | w->events &= ~EV__IOFDSET; |
3275 | w->events &= ~EV__IOFDSET; |
2611 | |
3276 | |
2612 | EV_FREQUENT_CHECK; |
3277 | EV_FREQUENT_CHECK; |
2613 | } |
3278 | } |
2614 | |
3279 | |
2615 | void noinline |
3280 | void noinline |
2616 | ev_io_stop (EV_P_ ev_io *w) |
3281 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
2617 | { |
3282 | { |
2618 | clear_pending (EV_A_ (W)w); |
3283 | clear_pending (EV_A_ (W)w); |
2619 | if (expect_false (!ev_is_active (w))) |
3284 | if (expect_false (!ev_is_active (w))) |
2620 | return; |
3285 | return; |
2621 | |
3286 | |
… | |
… | |
2630 | |
3295 | |
2631 | EV_FREQUENT_CHECK; |
3296 | EV_FREQUENT_CHECK; |
2632 | } |
3297 | } |
2633 | |
3298 | |
2634 | void noinline |
3299 | void noinline |
2635 | ev_timer_start (EV_P_ ev_timer *w) |
3300 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
2636 | { |
3301 | { |
2637 | if (expect_false (ev_is_active (w))) |
3302 | if (expect_false (ev_is_active (w))) |
2638 | return; |
3303 | return; |
2639 | |
3304 | |
2640 | ev_at (w) += mn_now; |
3305 | ev_at (w) += mn_now; |
… | |
… | |
2654 | |
3319 | |
2655 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3320 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2656 | } |
3321 | } |
2657 | |
3322 | |
2658 | void noinline |
3323 | void noinline |
2659 | ev_timer_stop (EV_P_ ev_timer *w) |
3324 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
2660 | { |
3325 | { |
2661 | clear_pending (EV_A_ (W)w); |
3326 | clear_pending (EV_A_ (W)w); |
2662 | if (expect_false (!ev_is_active (w))) |
3327 | if (expect_false (!ev_is_active (w))) |
2663 | return; |
3328 | return; |
2664 | |
3329 | |
… | |
… | |
2684 | |
3349 | |
2685 | EV_FREQUENT_CHECK; |
3350 | EV_FREQUENT_CHECK; |
2686 | } |
3351 | } |
2687 | |
3352 | |
2688 | void noinline |
3353 | void noinline |
2689 | ev_timer_again (EV_P_ ev_timer *w) |
3354 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
2690 | { |
3355 | { |
2691 | EV_FREQUENT_CHECK; |
3356 | EV_FREQUENT_CHECK; |
|
|
3357 | |
|
|
3358 | clear_pending (EV_A_ (W)w); |
2692 | |
3359 | |
2693 | if (ev_is_active (w)) |
3360 | if (ev_is_active (w)) |
2694 | { |
3361 | { |
2695 | if (w->repeat) |
3362 | if (w->repeat) |
2696 | { |
3363 | { |
… | |
… | |
2709 | |
3376 | |
2710 | EV_FREQUENT_CHECK; |
3377 | EV_FREQUENT_CHECK; |
2711 | } |
3378 | } |
2712 | |
3379 | |
2713 | ev_tstamp |
3380 | ev_tstamp |
2714 | ev_timer_remaining (EV_P_ ev_timer *w) |
3381 | ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW |
2715 | { |
3382 | { |
2716 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3383 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
2717 | } |
3384 | } |
2718 | |
3385 | |
2719 | #if EV_PERIODIC_ENABLE |
3386 | #if EV_PERIODIC_ENABLE |
2720 | void noinline |
3387 | void noinline |
2721 | ev_periodic_start (EV_P_ ev_periodic *w) |
3388 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
2722 | { |
3389 | { |
2723 | if (expect_false (ev_is_active (w))) |
3390 | if (expect_false (ev_is_active (w))) |
2724 | return; |
3391 | return; |
2725 | |
3392 | |
2726 | if (w->reschedule_cb) |
3393 | if (w->reschedule_cb) |
2727 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3394 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2728 | else if (w->interval) |
3395 | else if (w->interval) |
2729 | { |
3396 | { |
2730 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
3397 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2731 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
3398 | periodic_recalc (EV_A_ w); |
2732 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2733 | } |
3399 | } |
2734 | else |
3400 | else |
2735 | ev_at (w) = w->offset; |
3401 | ev_at (w) = w->offset; |
2736 | |
3402 | |
2737 | EV_FREQUENT_CHECK; |
3403 | EV_FREQUENT_CHECK; |
… | |
… | |
2747 | |
3413 | |
2748 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3414 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2749 | } |
3415 | } |
2750 | |
3416 | |
2751 | void noinline |
3417 | void noinline |
2752 | ev_periodic_stop (EV_P_ ev_periodic *w) |
3418 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
2753 | { |
3419 | { |
2754 | clear_pending (EV_A_ (W)w); |
3420 | clear_pending (EV_A_ (W)w); |
2755 | if (expect_false (!ev_is_active (w))) |
3421 | if (expect_false (!ev_is_active (w))) |
2756 | return; |
3422 | return; |
2757 | |
3423 | |
… | |
… | |
2775 | |
3441 | |
2776 | EV_FREQUENT_CHECK; |
3442 | EV_FREQUENT_CHECK; |
2777 | } |
3443 | } |
2778 | |
3444 | |
2779 | void noinline |
3445 | void noinline |
2780 | ev_periodic_again (EV_P_ ev_periodic *w) |
3446 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
2781 | { |
3447 | { |
2782 | /* TODO: use adjustheap and recalculation */ |
3448 | /* TODO: use adjustheap and recalculation */ |
2783 | ev_periodic_stop (EV_A_ w); |
3449 | ev_periodic_stop (EV_A_ w); |
2784 | ev_periodic_start (EV_A_ w); |
3450 | ev_periodic_start (EV_A_ w); |
2785 | } |
3451 | } |
… | |
… | |
2790 | #endif |
3456 | #endif |
2791 | |
3457 | |
2792 | #if EV_SIGNAL_ENABLE |
3458 | #if EV_SIGNAL_ENABLE |
2793 | |
3459 | |
2794 | void noinline |
3460 | void noinline |
2795 | ev_signal_start (EV_P_ ev_signal *w) |
3461 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
2796 | { |
3462 | { |
2797 | if (expect_false (ev_is_active (w))) |
3463 | if (expect_false (ev_is_active (w))) |
2798 | return; |
3464 | return; |
2799 | |
3465 | |
2800 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
3466 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
… | |
… | |
2858 | sa.sa_handler = ev_sighandler; |
3524 | sa.sa_handler = ev_sighandler; |
2859 | sigfillset (&sa.sa_mask); |
3525 | sigfillset (&sa.sa_mask); |
2860 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
3526 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2861 | sigaction (w->signum, &sa, 0); |
3527 | sigaction (w->signum, &sa, 0); |
2862 | |
3528 | |
|
|
3529 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
3530 | { |
2863 | sigemptyset (&sa.sa_mask); |
3531 | sigemptyset (&sa.sa_mask); |
2864 | sigaddset (&sa.sa_mask, w->signum); |
3532 | sigaddset (&sa.sa_mask, w->signum); |
2865 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
3533 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
3534 | } |
2866 | #endif |
3535 | #endif |
2867 | } |
3536 | } |
2868 | |
3537 | |
2869 | EV_FREQUENT_CHECK; |
3538 | EV_FREQUENT_CHECK; |
2870 | } |
3539 | } |
2871 | |
3540 | |
2872 | void noinline |
3541 | void noinline |
2873 | ev_signal_stop (EV_P_ ev_signal *w) |
3542 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
2874 | { |
3543 | { |
2875 | clear_pending (EV_A_ (W)w); |
3544 | clear_pending (EV_A_ (W)w); |
2876 | if (expect_false (!ev_is_active (w))) |
3545 | if (expect_false (!ev_is_active (w))) |
2877 | return; |
3546 | return; |
2878 | |
3547 | |
… | |
… | |
2909 | #endif |
3578 | #endif |
2910 | |
3579 | |
2911 | #if EV_CHILD_ENABLE |
3580 | #if EV_CHILD_ENABLE |
2912 | |
3581 | |
2913 | void |
3582 | void |
2914 | ev_child_start (EV_P_ ev_child *w) |
3583 | ev_child_start (EV_P_ ev_child *w) EV_THROW |
2915 | { |
3584 | { |
2916 | #if EV_MULTIPLICITY |
3585 | #if EV_MULTIPLICITY |
2917 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3586 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2918 | #endif |
3587 | #endif |
2919 | if (expect_false (ev_is_active (w))) |
3588 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2926 | |
3595 | |
2927 | EV_FREQUENT_CHECK; |
3596 | EV_FREQUENT_CHECK; |
2928 | } |
3597 | } |
2929 | |
3598 | |
2930 | void |
3599 | void |
2931 | ev_child_stop (EV_P_ ev_child *w) |
3600 | ev_child_stop (EV_P_ ev_child *w) EV_THROW |
2932 | { |
3601 | { |
2933 | clear_pending (EV_A_ (W)w); |
3602 | clear_pending (EV_A_ (W)w); |
2934 | if (expect_false (!ev_is_active (w))) |
3603 | if (expect_false (!ev_is_active (w))) |
2935 | return; |
3604 | return; |
2936 | |
3605 | |
… | |
… | |
3011 | if (!pend || pend == path) |
3680 | if (!pend || pend == path) |
3012 | break; |
3681 | break; |
3013 | |
3682 | |
3014 | *pend = 0; |
3683 | *pend = 0; |
3015 | w->wd = inotify_add_watch (fs_fd, path, mask); |
3684 | w->wd = inotify_add_watch (fs_fd, path, mask); |
3016 | } |
3685 | } |
3017 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
3686 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
3018 | } |
3687 | } |
3019 | } |
3688 | } |
3020 | |
3689 | |
3021 | if (w->wd >= 0) |
3690 | if (w->wd >= 0) |
… | |
… | |
3088 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3757 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3089 | ofs += sizeof (struct inotify_event) + ev->len; |
3758 | ofs += sizeof (struct inotify_event) + ev->len; |
3090 | } |
3759 | } |
3091 | } |
3760 | } |
3092 | |
3761 | |
3093 | inline_size void |
3762 | inline_size void ecb_cold |
3094 | ev_check_2625 (EV_P) |
3763 | ev_check_2625 (EV_P) |
3095 | { |
3764 | { |
3096 | /* kernels < 2.6.25 are borked |
3765 | /* kernels < 2.6.25 are borked |
3097 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3766 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3098 | */ |
3767 | */ |
… | |
… | |
3103 | } |
3772 | } |
3104 | |
3773 | |
3105 | inline_size int |
3774 | inline_size int |
3106 | infy_newfd (void) |
3775 | infy_newfd (void) |
3107 | { |
3776 | { |
3108 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
3777 | #if defined IN_CLOEXEC && defined IN_NONBLOCK |
3109 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
3778 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
3110 | if (fd >= 0) |
3779 | if (fd >= 0) |
3111 | return fd; |
3780 | return fd; |
3112 | #endif |
3781 | #endif |
3113 | return inotify_init (); |
3782 | return inotify_init (); |
… | |
… | |
3188 | #else |
3857 | #else |
3189 | # define EV_LSTAT(p,b) lstat (p, b) |
3858 | # define EV_LSTAT(p,b) lstat (p, b) |
3190 | #endif |
3859 | #endif |
3191 | |
3860 | |
3192 | void |
3861 | void |
3193 | ev_stat_stat (EV_P_ ev_stat *w) |
3862 | ev_stat_stat (EV_P_ ev_stat *w) EV_THROW |
3194 | { |
3863 | { |
3195 | if (lstat (w->path, &w->attr) < 0) |
3864 | if (lstat (w->path, &w->attr) < 0) |
3196 | w->attr.st_nlink = 0; |
3865 | w->attr.st_nlink = 0; |
3197 | else if (!w->attr.st_nlink) |
3866 | else if (!w->attr.st_nlink) |
3198 | w->attr.st_nlink = 1; |
3867 | w->attr.st_nlink = 1; |
… | |
… | |
3237 | ev_feed_event (EV_A_ w, EV_STAT); |
3906 | ev_feed_event (EV_A_ w, EV_STAT); |
3238 | } |
3907 | } |
3239 | } |
3908 | } |
3240 | |
3909 | |
3241 | void |
3910 | void |
3242 | ev_stat_start (EV_P_ ev_stat *w) |
3911 | ev_stat_start (EV_P_ ev_stat *w) EV_THROW |
3243 | { |
3912 | { |
3244 | if (expect_false (ev_is_active (w))) |
3913 | if (expect_false (ev_is_active (w))) |
3245 | return; |
3914 | return; |
3246 | |
3915 | |
3247 | ev_stat_stat (EV_A_ w); |
3916 | ev_stat_stat (EV_A_ w); |
… | |
… | |
3268 | |
3937 | |
3269 | EV_FREQUENT_CHECK; |
3938 | EV_FREQUENT_CHECK; |
3270 | } |
3939 | } |
3271 | |
3940 | |
3272 | void |
3941 | void |
3273 | ev_stat_stop (EV_P_ ev_stat *w) |
3942 | ev_stat_stop (EV_P_ ev_stat *w) EV_THROW |
3274 | { |
3943 | { |
3275 | clear_pending (EV_A_ (W)w); |
3944 | clear_pending (EV_A_ (W)w); |
3276 | if (expect_false (!ev_is_active (w))) |
3945 | if (expect_false (!ev_is_active (w))) |
3277 | return; |
3946 | return; |
3278 | |
3947 | |
… | |
… | |
3294 | } |
3963 | } |
3295 | #endif |
3964 | #endif |
3296 | |
3965 | |
3297 | #if EV_IDLE_ENABLE |
3966 | #if EV_IDLE_ENABLE |
3298 | void |
3967 | void |
3299 | ev_idle_start (EV_P_ ev_idle *w) |
3968 | ev_idle_start (EV_P_ ev_idle *w) EV_THROW |
3300 | { |
3969 | { |
3301 | if (expect_false (ev_is_active (w))) |
3970 | if (expect_false (ev_is_active (w))) |
3302 | return; |
3971 | return; |
3303 | |
3972 | |
3304 | pri_adjust (EV_A_ (W)w); |
3973 | pri_adjust (EV_A_ (W)w); |
… | |
… | |
3317 | |
3986 | |
3318 | EV_FREQUENT_CHECK; |
3987 | EV_FREQUENT_CHECK; |
3319 | } |
3988 | } |
3320 | |
3989 | |
3321 | void |
3990 | void |
3322 | ev_idle_stop (EV_P_ ev_idle *w) |
3991 | ev_idle_stop (EV_P_ ev_idle *w) EV_THROW |
3323 | { |
3992 | { |
3324 | clear_pending (EV_A_ (W)w); |
3993 | clear_pending (EV_A_ (W)w); |
3325 | if (expect_false (!ev_is_active (w))) |
3994 | if (expect_false (!ev_is_active (w))) |
3326 | return; |
3995 | return; |
3327 | |
3996 | |
… | |
… | |
3341 | } |
4010 | } |
3342 | #endif |
4011 | #endif |
3343 | |
4012 | |
3344 | #if EV_PREPARE_ENABLE |
4013 | #if EV_PREPARE_ENABLE |
3345 | void |
4014 | void |
3346 | ev_prepare_start (EV_P_ ev_prepare *w) |
4015 | ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW |
3347 | { |
4016 | { |
3348 | if (expect_false (ev_is_active (w))) |
4017 | if (expect_false (ev_is_active (w))) |
3349 | return; |
4018 | return; |
3350 | |
4019 | |
3351 | EV_FREQUENT_CHECK; |
4020 | EV_FREQUENT_CHECK; |
… | |
… | |
3356 | |
4025 | |
3357 | EV_FREQUENT_CHECK; |
4026 | EV_FREQUENT_CHECK; |
3358 | } |
4027 | } |
3359 | |
4028 | |
3360 | void |
4029 | void |
3361 | ev_prepare_stop (EV_P_ ev_prepare *w) |
4030 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW |
3362 | { |
4031 | { |
3363 | clear_pending (EV_A_ (W)w); |
4032 | clear_pending (EV_A_ (W)w); |
3364 | if (expect_false (!ev_is_active (w))) |
4033 | if (expect_false (!ev_is_active (w))) |
3365 | return; |
4034 | return; |
3366 | |
4035 | |
… | |
… | |
3379 | } |
4048 | } |
3380 | #endif |
4049 | #endif |
3381 | |
4050 | |
3382 | #if EV_CHECK_ENABLE |
4051 | #if EV_CHECK_ENABLE |
3383 | void |
4052 | void |
3384 | ev_check_start (EV_P_ ev_check *w) |
4053 | ev_check_start (EV_P_ ev_check *w) EV_THROW |
3385 | { |
4054 | { |
3386 | if (expect_false (ev_is_active (w))) |
4055 | if (expect_false (ev_is_active (w))) |
3387 | return; |
4056 | return; |
3388 | |
4057 | |
3389 | EV_FREQUENT_CHECK; |
4058 | EV_FREQUENT_CHECK; |
… | |
… | |
3394 | |
4063 | |
3395 | EV_FREQUENT_CHECK; |
4064 | EV_FREQUENT_CHECK; |
3396 | } |
4065 | } |
3397 | |
4066 | |
3398 | void |
4067 | void |
3399 | ev_check_stop (EV_P_ ev_check *w) |
4068 | ev_check_stop (EV_P_ ev_check *w) EV_THROW |
3400 | { |
4069 | { |
3401 | clear_pending (EV_A_ (W)w); |
4070 | clear_pending (EV_A_ (W)w); |
3402 | if (expect_false (!ev_is_active (w))) |
4071 | if (expect_false (!ev_is_active (w))) |
3403 | return; |
4072 | return; |
3404 | |
4073 | |
… | |
… | |
3417 | } |
4086 | } |
3418 | #endif |
4087 | #endif |
3419 | |
4088 | |
3420 | #if EV_EMBED_ENABLE |
4089 | #if EV_EMBED_ENABLE |
3421 | void noinline |
4090 | void noinline |
3422 | ev_embed_sweep (EV_P_ ev_embed *w) |
4091 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
3423 | { |
4092 | { |
3424 | ev_run (w->other, EVRUN_NOWAIT); |
4093 | ev_run (w->other, EVRUN_NOWAIT); |
3425 | } |
4094 | } |
3426 | |
4095 | |
3427 | static void |
4096 | static void |
… | |
… | |
3475 | ev_idle_stop (EV_A_ idle); |
4144 | ev_idle_stop (EV_A_ idle); |
3476 | } |
4145 | } |
3477 | #endif |
4146 | #endif |
3478 | |
4147 | |
3479 | void |
4148 | void |
3480 | ev_embed_start (EV_P_ ev_embed *w) |
4149 | ev_embed_start (EV_P_ ev_embed *w) EV_THROW |
3481 | { |
4150 | { |
3482 | if (expect_false (ev_is_active (w))) |
4151 | if (expect_false (ev_is_active (w))) |
3483 | return; |
4152 | return; |
3484 | |
4153 | |
3485 | { |
4154 | { |
… | |
… | |
3506 | |
4175 | |
3507 | EV_FREQUENT_CHECK; |
4176 | EV_FREQUENT_CHECK; |
3508 | } |
4177 | } |
3509 | |
4178 | |
3510 | void |
4179 | void |
3511 | ev_embed_stop (EV_P_ ev_embed *w) |
4180 | ev_embed_stop (EV_P_ ev_embed *w) EV_THROW |
3512 | { |
4181 | { |
3513 | clear_pending (EV_A_ (W)w); |
4182 | clear_pending (EV_A_ (W)w); |
3514 | if (expect_false (!ev_is_active (w))) |
4183 | if (expect_false (!ev_is_active (w))) |
3515 | return; |
4184 | return; |
3516 | |
4185 | |
… | |
… | |
3526 | } |
4195 | } |
3527 | #endif |
4196 | #endif |
3528 | |
4197 | |
3529 | #if EV_FORK_ENABLE |
4198 | #if EV_FORK_ENABLE |
3530 | void |
4199 | void |
3531 | ev_fork_start (EV_P_ ev_fork *w) |
4200 | ev_fork_start (EV_P_ ev_fork *w) EV_THROW |
3532 | { |
4201 | { |
3533 | if (expect_false (ev_is_active (w))) |
4202 | if (expect_false (ev_is_active (w))) |
3534 | return; |
4203 | return; |
3535 | |
4204 | |
3536 | EV_FREQUENT_CHECK; |
4205 | EV_FREQUENT_CHECK; |
… | |
… | |
3541 | |
4210 | |
3542 | EV_FREQUENT_CHECK; |
4211 | EV_FREQUENT_CHECK; |
3543 | } |
4212 | } |
3544 | |
4213 | |
3545 | void |
4214 | void |
3546 | ev_fork_stop (EV_P_ ev_fork *w) |
4215 | ev_fork_stop (EV_P_ ev_fork *w) EV_THROW |
3547 | { |
4216 | { |
3548 | clear_pending (EV_A_ (W)w); |
4217 | clear_pending (EV_A_ (W)w); |
3549 | if (expect_false (!ev_is_active (w))) |
4218 | if (expect_false (!ev_is_active (w))) |
3550 | return; |
4219 | return; |
3551 | |
4220 | |
… | |
… | |
3562 | |
4231 | |
3563 | EV_FREQUENT_CHECK; |
4232 | EV_FREQUENT_CHECK; |
3564 | } |
4233 | } |
3565 | #endif |
4234 | #endif |
3566 | |
4235 | |
|
|
4236 | #if EV_CLEANUP_ENABLE |
|
|
4237 | void |
|
|
4238 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW |
|
|
4239 | { |
|
|
4240 | if (expect_false (ev_is_active (w))) |
|
|
4241 | return; |
|
|
4242 | |
|
|
4243 | EV_FREQUENT_CHECK; |
|
|
4244 | |
|
|
4245 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
4246 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
|
|
4247 | cleanups [cleanupcnt - 1] = w; |
|
|
4248 | |
|
|
4249 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
4250 | ev_unref (EV_A); |
|
|
4251 | EV_FREQUENT_CHECK; |
|
|
4252 | } |
|
|
4253 | |
|
|
4254 | void |
|
|
4255 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW |
|
|
4256 | { |
|
|
4257 | clear_pending (EV_A_ (W)w); |
|
|
4258 | if (expect_false (!ev_is_active (w))) |
|
|
4259 | return; |
|
|
4260 | |
|
|
4261 | EV_FREQUENT_CHECK; |
|
|
4262 | ev_ref (EV_A); |
|
|
4263 | |
|
|
4264 | { |
|
|
4265 | int active = ev_active (w); |
|
|
4266 | |
|
|
4267 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
4268 | ev_active (cleanups [active - 1]) = active; |
|
|
4269 | } |
|
|
4270 | |
|
|
4271 | ev_stop (EV_A_ (W)w); |
|
|
4272 | |
|
|
4273 | EV_FREQUENT_CHECK; |
|
|
4274 | } |
|
|
4275 | #endif |
|
|
4276 | |
3567 | #if EV_ASYNC_ENABLE |
4277 | #if EV_ASYNC_ENABLE |
3568 | void |
4278 | void |
3569 | ev_async_start (EV_P_ ev_async *w) |
4279 | ev_async_start (EV_P_ ev_async *w) EV_THROW |
3570 | { |
4280 | { |
3571 | if (expect_false (ev_is_active (w))) |
4281 | if (expect_false (ev_is_active (w))) |
3572 | return; |
4282 | return; |
3573 | |
4283 | |
3574 | w->sent = 0; |
4284 | w->sent = 0; |
… | |
… | |
3583 | |
4293 | |
3584 | EV_FREQUENT_CHECK; |
4294 | EV_FREQUENT_CHECK; |
3585 | } |
4295 | } |
3586 | |
4296 | |
3587 | void |
4297 | void |
3588 | ev_async_stop (EV_P_ ev_async *w) |
4298 | ev_async_stop (EV_P_ ev_async *w) EV_THROW |
3589 | { |
4299 | { |
3590 | clear_pending (EV_A_ (W)w); |
4300 | clear_pending (EV_A_ (W)w); |
3591 | if (expect_false (!ev_is_active (w))) |
4301 | if (expect_false (!ev_is_active (w))) |
3592 | return; |
4302 | return; |
3593 | |
4303 | |
… | |
… | |
3604 | |
4314 | |
3605 | EV_FREQUENT_CHECK; |
4315 | EV_FREQUENT_CHECK; |
3606 | } |
4316 | } |
3607 | |
4317 | |
3608 | void |
4318 | void |
3609 | ev_async_send (EV_P_ ev_async *w) |
4319 | ev_async_send (EV_P_ ev_async *w) EV_THROW |
3610 | { |
4320 | { |
3611 | w->sent = 1; |
4321 | w->sent = 1; |
3612 | evpipe_write (EV_A_ &async_pending); |
4322 | evpipe_write (EV_A_ &async_pending); |
3613 | } |
4323 | } |
3614 | #endif |
4324 | #endif |
… | |
… | |
3651 | |
4361 | |
3652 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
4362 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
3653 | } |
4363 | } |
3654 | |
4364 | |
3655 | void |
4365 | void |
3656 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
4366 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW |
3657 | { |
4367 | { |
3658 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4368 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3659 | |
4369 | |
3660 | if (expect_false (!once)) |
4370 | if (expect_false (!once)) |
3661 | { |
4371 | { |
… | |
… | |
3682 | } |
4392 | } |
3683 | |
4393 | |
3684 | /*****************************************************************************/ |
4394 | /*****************************************************************************/ |
3685 | |
4395 | |
3686 | #if EV_WALK_ENABLE |
4396 | #if EV_WALK_ENABLE |
3687 | void |
4397 | void ecb_cold |
3688 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
4398 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
3689 | { |
4399 | { |
3690 | int i, j; |
4400 | int i, j; |
3691 | ev_watcher_list *wl, *wn; |
4401 | ev_watcher_list *wl, *wn; |
3692 | |
4402 | |
3693 | if (types & (EV_IO | EV_EMBED)) |
4403 | if (types & (EV_IO | EV_EMBED)) |
… | |
… | |
3736 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
4446 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
3737 | #endif |
4447 | #endif |
3738 | |
4448 | |
3739 | #if EV_IDLE_ENABLE |
4449 | #if EV_IDLE_ENABLE |
3740 | if (types & EV_IDLE) |
4450 | if (types & EV_IDLE) |
3741 | for (j = NUMPRI; i--; ) |
4451 | for (j = NUMPRI; j--; ) |
3742 | for (i = idlecnt [j]; i--; ) |
4452 | for (i = idlecnt [j]; i--; ) |
3743 | cb (EV_A_ EV_IDLE, idles [j][i]); |
4453 | cb (EV_A_ EV_IDLE, idles [j][i]); |
3744 | #endif |
4454 | #endif |
3745 | |
4455 | |
3746 | #if EV_FORK_ENABLE |
4456 | #if EV_FORK_ENABLE |
… | |
… | |
3799 | |
4509 | |
3800 | #if EV_MULTIPLICITY |
4510 | #if EV_MULTIPLICITY |
3801 | #include "ev_wrap.h" |
4511 | #include "ev_wrap.h" |
3802 | #endif |
4512 | #endif |
3803 | |
4513 | |
3804 | EV_CPP(}) |
|
|
3805 | |
|
|