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) 2007,2008,2009,2010,2011,2012,2013 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
11 | * this list of conditions and the following disclaimer. |
11 | * this list of conditions and the following disclaimer. |
12 | * |
12 | * |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
14 | * notice, this list of conditions and the following disclaimer in the |
14 | * notice, this list of conditions and the following disclaimer in the |
15 | * documentation and/or other materials provided with the distribution. |
15 | * documentation and/or other materials provided with the distribution. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
… | |
… | |
43 | # include EV_CONFIG_H |
43 | # include EV_CONFIG_H |
44 | # else |
44 | # else |
45 | # include "config.h" |
45 | # include "config.h" |
46 | # endif |
46 | # endif |
47 | |
47 | |
|
|
48 | # if HAVE_FLOOR |
|
|
49 | # ifndef EV_USE_FLOOR |
|
|
50 | # define EV_USE_FLOOR 1 |
|
|
51 | # endif |
|
|
52 | # endif |
|
|
53 | |
48 | # if HAVE_CLOCK_SYSCALL |
54 | # if HAVE_CLOCK_SYSCALL |
49 | # ifndef EV_USE_CLOCK_SYSCALL |
55 | # ifndef EV_USE_CLOCK_SYSCALL |
50 | # define EV_USE_CLOCK_SYSCALL 1 |
56 | # define EV_USE_CLOCK_SYSCALL 1 |
51 | # ifndef EV_USE_REALTIME |
57 | # ifndef EV_USE_REALTIME |
52 | # define EV_USE_REALTIME 0 |
58 | # define EV_USE_REALTIME 0 |
53 | # endif |
59 | # endif |
54 | # ifndef EV_USE_MONOTONIC |
60 | # ifndef EV_USE_MONOTONIC |
55 | # define EV_USE_MONOTONIC 1 |
61 | # define EV_USE_MONOTONIC 1 |
56 | # endif |
62 | # endif |
57 | # endif |
63 | # endif |
58 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
64 | # elif !defined EV_USE_CLOCK_SYSCALL |
59 | # define EV_USE_CLOCK_SYSCALL 0 |
65 | # define EV_USE_CLOCK_SYSCALL 0 |
60 | # endif |
66 | # endif |
61 | |
67 | |
62 | # if HAVE_CLOCK_GETTIME |
68 | # if HAVE_CLOCK_GETTIME |
63 | # ifndef EV_USE_MONOTONIC |
69 | # ifndef EV_USE_MONOTONIC |
… | |
… | |
156 | # define EV_USE_EVENTFD 0 |
162 | # define EV_USE_EVENTFD 0 |
157 | # endif |
163 | # endif |
158 | |
164 | |
159 | #endif |
165 | #endif |
160 | |
166 | |
161 | #include <math.h> |
|
|
162 | #include <stdlib.h> |
167 | #include <stdlib.h> |
163 | #include <string.h> |
168 | #include <string.h> |
164 | #include <fcntl.h> |
169 | #include <fcntl.h> |
165 | #include <stddef.h> |
170 | #include <stddef.h> |
166 | |
171 | |
… | |
… | |
178 | # include EV_H |
183 | # include EV_H |
179 | #else |
184 | #else |
180 | # include "ev.h" |
185 | # include "ev.h" |
181 | #endif |
186 | #endif |
182 | |
187 | |
183 | EV_CPP(extern "C" {) |
188 | #if EV_NO_THREADS |
|
|
189 | # undef EV_NO_SMP |
|
|
190 | # define EV_NO_SMP 1 |
|
|
191 | # undef ECB_NO_THREADS |
|
|
192 | # define ECB_NO_THREADS 1 |
|
|
193 | #endif |
|
|
194 | #if EV_NO_SMP |
|
|
195 | # undef EV_NO_SMP |
|
|
196 | # define ECB_NO_SMP 1 |
|
|
197 | #endif |
184 | |
198 | |
185 | #ifndef _WIN32 |
199 | #ifndef _WIN32 |
186 | # include <sys/time.h> |
200 | # include <sys/time.h> |
187 | # include <sys/wait.h> |
201 | # include <sys/wait.h> |
188 | # include <unistd.h> |
202 | # include <unistd.h> |
189 | #else |
203 | #else |
190 | # include <io.h> |
204 | # include <io.h> |
191 | # define WIN32_LEAN_AND_MEAN |
205 | # define WIN32_LEAN_AND_MEAN |
|
|
206 | # include <winsock2.h> |
192 | # include <windows.h> |
207 | # include <windows.h> |
193 | # ifndef EV_SELECT_IS_WINSOCKET |
208 | # ifndef EV_SELECT_IS_WINSOCKET |
194 | # define EV_SELECT_IS_WINSOCKET 1 |
209 | # define EV_SELECT_IS_WINSOCKET 1 |
195 | # endif |
210 | # endif |
196 | # undef EV_AVOID_STDIO |
211 | # undef EV_AVOID_STDIO |
… | |
… | |
205 | #define _DARWIN_UNLIMITED_SELECT 1 |
220 | #define _DARWIN_UNLIMITED_SELECT 1 |
206 | |
221 | |
207 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
222 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
208 | |
223 | |
209 | /* try to deduce the maximum number of signals on this platform */ |
224 | /* try to deduce the maximum number of signals on this platform */ |
210 | #if defined (EV_NSIG) |
225 | #if defined EV_NSIG |
211 | /* use what's provided */ |
226 | /* use what's provided */ |
212 | #elif defined (NSIG) |
227 | #elif defined NSIG |
213 | # define EV_NSIG (NSIG) |
228 | # define EV_NSIG (NSIG) |
214 | #elif defined(_NSIG) |
229 | #elif defined _NSIG |
215 | # define EV_NSIG (_NSIG) |
230 | # define EV_NSIG (_NSIG) |
216 | #elif defined (SIGMAX) |
231 | #elif defined SIGMAX |
217 | # define EV_NSIG (SIGMAX+1) |
232 | # define EV_NSIG (SIGMAX+1) |
218 | #elif defined (SIG_MAX) |
233 | #elif defined SIG_MAX |
219 | # define EV_NSIG (SIG_MAX+1) |
234 | # define EV_NSIG (SIG_MAX+1) |
220 | #elif defined (_SIG_MAX) |
235 | #elif defined _SIG_MAX |
221 | # define EV_NSIG (_SIG_MAX+1) |
236 | # define EV_NSIG (_SIG_MAX+1) |
222 | #elif defined (MAXSIG) |
237 | #elif defined MAXSIG |
223 | # define EV_NSIG (MAXSIG+1) |
238 | # define EV_NSIG (MAXSIG+1) |
224 | #elif defined (MAX_SIG) |
239 | #elif defined MAX_SIG |
225 | # define EV_NSIG (MAX_SIG+1) |
240 | # define EV_NSIG (MAX_SIG+1) |
226 | #elif defined (SIGARRAYSIZE) |
241 | #elif defined SIGARRAYSIZE |
227 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
242 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
228 | #elif defined (_sys_nsig) |
243 | #elif defined _sys_nsig |
229 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
244 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
230 | #else |
245 | #else |
231 | # error "unable to find value for NSIG, please report" |
246 | # define EV_NSIG (8 * sizeof (sigset_t) + 1) |
232 | /* to make it compile regardless, just remove the above line, */ |
247 | #endif |
233 | /* but consider reporting it, too! :) */ |
248 | |
234 | # define EV_NSIG 65 |
249 | #ifndef EV_USE_FLOOR |
|
|
250 | # define EV_USE_FLOOR 0 |
235 | #endif |
251 | #endif |
236 | |
252 | |
237 | #ifndef EV_USE_CLOCK_SYSCALL |
253 | #ifndef EV_USE_CLOCK_SYSCALL |
238 | # if __linux && __GLIBC__ >= 2 |
254 | # if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17 |
239 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
255 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
240 | # else |
256 | # else |
241 | # define EV_USE_CLOCK_SYSCALL 0 |
257 | # define EV_USE_CLOCK_SYSCALL 0 |
242 | # endif |
258 | # endif |
243 | #endif |
259 | #endif |
244 | |
260 | |
|
|
261 | #if !(_POSIX_TIMERS > 0) |
|
|
262 | # ifndef EV_USE_MONOTONIC |
|
|
263 | # define EV_USE_MONOTONIC 0 |
|
|
264 | # endif |
|
|
265 | # ifndef EV_USE_REALTIME |
|
|
266 | # define EV_USE_REALTIME 0 |
|
|
267 | # endif |
|
|
268 | #endif |
|
|
269 | |
245 | #ifndef EV_USE_MONOTONIC |
270 | #ifndef EV_USE_MONOTONIC |
246 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
271 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
247 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
272 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
248 | # else |
273 | # else |
249 | # define EV_USE_MONOTONIC 0 |
274 | # define EV_USE_MONOTONIC 0 |
250 | # endif |
275 | # endif |
251 | #endif |
276 | #endif |
… | |
… | |
338 | |
363 | |
339 | #ifndef EV_HEAP_CACHE_AT |
364 | #ifndef EV_HEAP_CACHE_AT |
340 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
365 | # define EV_HEAP_CACHE_AT EV_FEATURE_DATA |
341 | #endif |
366 | #endif |
342 | |
367 | |
|
|
368 | #ifdef ANDROID |
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|
369 | /* supposedly, android doesn't typedef fd_mask */ |
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|
370 | # undef EV_USE_SELECT |
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|
371 | # define EV_USE_SELECT 0 |
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|
372 | /* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ |
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373 | # undef EV_USE_CLOCK_SYSCALL |
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374 | # define EV_USE_CLOCK_SYSCALL 0 |
|
|
375 | #endif |
|
|
376 | |
|
|
377 | /* aix's poll.h seems to cause lots of trouble */ |
|
|
378 | #ifdef _AIX |
|
|
379 | /* AIX has a completely broken poll.h header */ |
|
|
380 | # undef EV_USE_POLL |
|
|
381 | # define EV_USE_POLL 0 |
|
|
382 | #endif |
|
|
383 | |
343 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
384 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
344 | /* which makes programs even slower. might work on other unices, too. */ |
385 | /* which makes programs even slower. might work on other unices, too. */ |
345 | #if EV_USE_CLOCK_SYSCALL |
386 | #if EV_USE_CLOCK_SYSCALL |
346 | # include <syscall.h> |
387 | # include <sys/syscall.h> |
347 | # ifdef SYS_clock_gettime |
388 | # ifdef SYS_clock_gettime |
348 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
389 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
349 | # undef EV_USE_MONOTONIC |
390 | # undef EV_USE_MONOTONIC |
350 | # define EV_USE_MONOTONIC 1 |
391 | # define EV_USE_MONOTONIC 1 |
351 | # else |
392 | # else |
… | |
… | |
354 | # endif |
395 | # endif |
355 | #endif |
396 | #endif |
356 | |
397 | |
357 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
398 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
358 | |
399 | |
359 | #ifdef _AIX |
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|
360 | /* AIX has a completely broken poll.h header */ |
|
|
361 | # undef EV_USE_POLL |
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|
362 | # define EV_USE_POLL 0 |
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|
363 | #endif |
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364 | |
|
|
365 | #ifndef CLOCK_MONOTONIC |
400 | #ifndef CLOCK_MONOTONIC |
366 | # undef EV_USE_MONOTONIC |
401 | # undef EV_USE_MONOTONIC |
367 | # define EV_USE_MONOTONIC 0 |
402 | # define EV_USE_MONOTONIC 0 |
368 | #endif |
403 | #endif |
369 | |
404 | |
… | |
… | |
376 | # undef EV_USE_INOTIFY |
411 | # undef EV_USE_INOTIFY |
377 | # define EV_USE_INOTIFY 0 |
412 | # define EV_USE_INOTIFY 0 |
378 | #endif |
413 | #endif |
379 | |
414 | |
380 | #if !EV_USE_NANOSLEEP |
415 | #if !EV_USE_NANOSLEEP |
381 | # ifndef _WIN32 |
416 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
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|
417 | # if !defined _WIN32 && !defined __hpux |
382 | # include <sys/select.h> |
418 | # include <sys/select.h> |
383 | # endif |
419 | # endif |
384 | #endif |
420 | #endif |
385 | |
421 | |
386 | #if EV_USE_INOTIFY |
422 | #if EV_USE_INOTIFY |
387 | # include <sys/utsname.h> |
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|
388 | # include <sys/statfs.h> |
423 | # include <sys/statfs.h> |
389 | # include <sys/inotify.h> |
424 | # include <sys/inotify.h> |
390 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
425 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
391 | # ifndef IN_DONT_FOLLOW |
426 | # ifndef IN_DONT_FOLLOW |
392 | # undef EV_USE_INOTIFY |
427 | # undef EV_USE_INOTIFY |
393 | # define EV_USE_INOTIFY 0 |
428 | # define EV_USE_INOTIFY 0 |
394 | # endif |
429 | # endif |
395 | #endif |
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396 | |
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397 | #if EV_SELECT_IS_WINSOCKET |
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398 | # include <winsock.h> |
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399 | #endif |
430 | #endif |
400 | |
431 | |
401 | #if EV_USE_EVENTFD |
432 | #if EV_USE_EVENTFD |
402 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
433 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
403 | # include <stdint.h> |
434 | # include <stdint.h> |
… | |
… | |
443 | #else |
474 | #else |
444 | # define EV_FREQUENT_CHECK do { } while (0) |
475 | # define EV_FREQUENT_CHECK do { } while (0) |
445 | #endif |
476 | #endif |
446 | |
477 | |
447 | /* |
478 | /* |
448 | * This is used to avoid floating point rounding problems. |
479 | * 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. |
480 | * This value is good at least till the year 4000. |
453 | * Better solutions welcome. |
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454 | */ |
481 | */ |
455 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
482 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
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483 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
456 | |
484 | |
457 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
485 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
458 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
486 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
459 | |
487 | |
460 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
488 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
461 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
489 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
462 | |
490 | |
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491 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
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492 | /* ECB.H BEGIN */ |
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493 | /* |
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494 | * libecb - http://software.schmorp.de/pkg/libecb |
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495 | * |
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496 | * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de> |
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497 | * Copyright (©) 2011 Emanuele Giaquinta |
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498 | * All rights reserved. |
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499 | * |
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500 | * Redistribution and use in source and binary forms, with or without modifica- |
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501 | * tion, are permitted provided that the following conditions are met: |
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502 | * |
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503 | * 1. Redistributions of source code must retain the above copyright notice, |
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504 | * this list of conditions and the following disclaimer. |
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505 | * |
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506 | * 2. Redistributions in binary form must reproduce the above copyright |
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507 | * notice, this list of conditions and the following disclaimer in the |
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508 | * documentation and/or other materials provided with the distribution. |
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509 | * |
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510 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
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511 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
|
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512 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
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513 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
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514 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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515 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
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516 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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517 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
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518 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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519 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
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520 | * |
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521 | * Alternatively, the contents of this file may be used under the terms of |
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522 | * the GNU General Public License ("GPL") version 2 or any later version, |
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|
523 | * in which case the provisions of the GPL are applicable instead of |
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524 | * the above. If you wish to allow the use of your version of this file |
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525 | * only under the terms of the GPL and not to allow others to use your |
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526 | * version of this file under the BSD license, indicate your decision |
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527 | * by deleting the provisions above and replace them with the notice |
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528 | * and other provisions required by the GPL. If you do not delete the |
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529 | * provisions above, a recipient may use your version of this file under |
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530 | * either the BSD or the GPL. |
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531 | */ |
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532 | |
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533 | #ifndef ECB_H |
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534 | #define ECB_H |
|
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535 | |
|
|
536 | /* 16 bits major, 16 bits minor */ |
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537 | #define ECB_VERSION 0x00010005 |
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|
538 | |
|
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539 | #ifdef _WIN32 |
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540 | typedef signed char int8_t; |
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541 | typedef unsigned char uint8_t; |
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542 | typedef signed short int16_t; |
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543 | typedef unsigned short uint16_t; |
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544 | typedef signed int int32_t; |
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545 | typedef unsigned int uint32_t; |
463 | #if __GNUC__ >= 4 |
546 | #if __GNUC__ |
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547 | typedef signed long long int64_t; |
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548 | typedef unsigned long long uint64_t; |
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549 | #else /* _MSC_VER || __BORLANDC__ */ |
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550 | typedef signed __int64 int64_t; |
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551 | typedef unsigned __int64 uint64_t; |
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552 | #endif |
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553 | #ifdef _WIN64 |
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554 | #define ECB_PTRSIZE 8 |
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555 | typedef uint64_t uintptr_t; |
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556 | typedef int64_t intptr_t; |
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557 | #else |
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558 | #define ECB_PTRSIZE 4 |
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559 | typedef uint32_t uintptr_t; |
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560 | typedef int32_t intptr_t; |
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561 | #endif |
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562 | #else |
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563 | #include <inttypes.h> |
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564 | #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU |
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565 | #define ECB_PTRSIZE 8 |
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566 | #else |
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567 | #define ECB_PTRSIZE 4 |
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568 | #endif |
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569 | #endif |
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570 | |
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571 | #define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__) |
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572 | #define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64) |
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573 | |
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574 | /* work around x32 idiocy by defining proper macros */ |
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575 | #if ECB_GCC_AMD64 || ECB_MSVC_AMD64 |
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576 | #if _ILP32 |
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|
577 | #define ECB_AMD64_X32 1 |
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578 | #else |
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579 | #define ECB_AMD64 1 |
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580 | #endif |
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581 | #endif |
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582 | |
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583 | /* many compilers define _GNUC_ to some versions but then only implement |
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584 | * what their idiot authors think are the "more important" extensions, |
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585 | * causing enormous grief in return for some better fake benchmark numbers. |
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586 | * or so. |
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587 | * we try to detect these and simply assume they are not gcc - if they have |
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588 | * an issue with that they should have done it right in the first place. |
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589 | */ |
|
|
590 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
|
|
591 | #define ECB_GCC_VERSION(major,minor) 0 |
|
|
592 | #else |
|
|
593 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
|
|
594 | #endif |
|
|
595 | |
|
|
596 | #define ECB_CLANG_VERSION(major,minor) (__clang_major__ > (major) || (__clang_major__ == (major) && __clang_minor__ >= (minor))) |
|
|
597 | |
|
|
598 | #if __clang__ && defined __has_builtin |
|
|
599 | #define ECB_CLANG_BUILTIN(x) __has_builtin (x) |
|
|
600 | #else |
|
|
601 | #define ECB_CLANG_BUILTIN(x) 0 |
|
|
602 | #endif |
|
|
603 | |
|
|
604 | #if __clang__ && defined __has_extension |
|
|
605 | #define ECB_CLANG_EXTENSION(x) __has_extension (x) |
|
|
606 | #else |
|
|
607 | #define ECB_CLANG_EXTENSION(x) 0 |
|
|
608 | #endif |
|
|
609 | |
|
|
610 | #define ECB_CPP (__cplusplus+0) |
|
|
611 | #define ECB_CPP11 (__cplusplus >= 201103L) |
|
|
612 | |
|
|
613 | #if ECB_CPP |
|
|
614 | #define ECB_C 0 |
|
|
615 | #define ECB_STDC_VERSION 0 |
|
|
616 | #else |
|
|
617 | #define ECB_C 1 |
|
|
618 | #define ECB_STDC_VERSION __STDC_VERSION__ |
|
|
619 | #endif |
|
|
620 | |
|
|
621 | #define ECB_C99 (ECB_STDC_VERSION >= 199901L) |
|
|
622 | #define ECB_C11 (ECB_STDC_VERSION >= 201112L) |
|
|
623 | |
|
|
624 | #if ECB_CPP |
|
|
625 | #define ECB_EXTERN_C extern "C" |
|
|
626 | #define ECB_EXTERN_C_BEG ECB_EXTERN_C { |
|
|
627 | #define ECB_EXTERN_C_END } |
|
|
628 | #else |
|
|
629 | #define ECB_EXTERN_C extern |
|
|
630 | #define ECB_EXTERN_C_BEG |
|
|
631 | #define ECB_EXTERN_C_END |
|
|
632 | #endif |
|
|
633 | |
|
|
634 | /*****************************************************************************/ |
|
|
635 | |
|
|
636 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
|
|
637 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
|
|
638 | |
|
|
639 | #if ECB_NO_THREADS |
|
|
640 | #define ECB_NO_SMP 1 |
|
|
641 | #endif |
|
|
642 | |
|
|
643 | #if ECB_NO_SMP |
|
|
644 | #define ECB_MEMORY_FENCE do { } while (0) |
|
|
645 | #endif |
|
|
646 | |
|
|
647 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */ |
|
|
648 | #if __xlC__ && ECB_CPP |
|
|
649 | #include <builtins.h> |
|
|
650 | #endif |
|
|
651 | |
|
|
652 | #if 1400 <= _MSC_VER |
|
|
653 | #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ |
|
|
654 | #endif |
|
|
655 | |
|
|
656 | #ifndef ECB_MEMORY_FENCE |
|
|
657 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
658 | #if __i386 || __i386__ |
|
|
659 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
|
|
660 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
661 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
662 | #elif ECB_GCC_AMD64 |
|
|
663 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
|
|
664 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
665 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
666 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
|
|
667 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
668 | #elif defined __ARM_ARCH_2__ \ |
|
|
669 | || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \ |
|
|
670 | || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \ |
|
|
671 | || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \ |
|
|
672 | || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \ |
|
|
673 | || defined __ARM_ARCH_5TEJ__ |
|
|
674 | /* should not need any, unless running old code on newer cpu - arm doesn't support that */ |
|
|
675 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
|
|
676 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \ |
|
|
677 | || defined __ARM_ARCH_6T2__ |
|
|
678 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
|
|
679 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
|
|
680 | || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__ |
|
|
681 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
|
|
682 | #elif __aarch64__ |
|
|
683 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") |
|
|
684 | #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8) |
|
|
685 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
|
|
686 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
|
|
687 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
|
|
688 | #elif defined __s390__ || defined __s390x__ |
|
|
689 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
|
|
690 | #elif defined __mips__ |
|
|
691 | /* GNU/Linux emulates sync on mips1 architectures, so we force its use */ |
|
|
692 | /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */ |
|
|
693 | #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory") |
|
|
694 | #elif defined __alpha__ |
|
|
695 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
|
|
696 | #elif defined __hppa__ |
|
|
697 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
698 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
699 | #elif defined __ia64__ |
|
|
700 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
|
|
701 | #elif defined __m68k__ |
|
|
702 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
703 | #elif defined __m88k__ |
|
|
704 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory") |
|
|
705 | #elif defined __sh__ |
|
|
706 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
707 | #endif |
|
|
708 | #endif |
|
|
709 | #endif |
|
|
710 | |
|
|
711 | #ifndef ECB_MEMORY_FENCE |
|
|
712 | #if ECB_GCC_VERSION(4,7) |
|
|
713 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
714 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
715 | #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
716 | #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
717 | |
|
|
718 | #elif ECB_CLANG_EXTENSION(c_atomic) |
|
|
719 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
720 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
721 | #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) |
|
|
722 | #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) |
|
|
723 | |
|
|
724 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
|
|
725 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
726 | #elif _MSC_VER >= 1500 /* VC++ 2008 */ |
|
|
727 | /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ |
|
|
728 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
729 | #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier() |
|
|
730 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
731 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier() |
|
|
732 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
733 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
734 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
735 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
736 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
737 | #elif defined _WIN32 |
|
|
738 | #include <WinNT.h> |
|
|
739 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
740 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
741 | #include <mbarrier.h> |
|
|
742 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
|
|
743 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
|
|
744 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
|
|
745 | #elif __xlC__ |
|
|
746 | #define ECB_MEMORY_FENCE __sync () |
|
|
747 | #endif |
|
|
748 | #endif |
|
|
749 | |
|
|
750 | #ifndef ECB_MEMORY_FENCE |
|
|
751 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
|
|
752 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
|
|
753 | /* not just C11 atomics and atomic accesses */ |
|
|
754 | #include <stdatomic.h> |
|
|
755 | /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */ |
|
|
756 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
|
|
757 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
|
|
758 | /* for most usages, or gcc and clang have a bug */ |
|
|
759 | /* I *currently* lean towards the latter, and inefficiently implement */ |
|
|
760 | /* all three of ecb's fences as a seq_cst fence */ |
|
|
761 | /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */ |
|
|
762 | /* for all __atomic_thread_fence's except seq_cst */ |
|
|
763 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
764 | #endif |
|
|
765 | #endif |
|
|
766 | |
|
|
767 | #ifndef ECB_MEMORY_FENCE |
|
|
768 | #if !ECB_AVOID_PTHREADS |
|
|
769 | /* |
|
|
770 | * if you get undefined symbol references to pthread_mutex_lock, |
|
|
771 | * or failure to find pthread.h, then you should implement |
|
|
772 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
|
773 | * OR provide pthread.h and link against the posix thread library |
|
|
774 | * of your system. |
|
|
775 | */ |
|
|
776 | #include <pthread.h> |
|
|
777 | #define ECB_NEEDS_PTHREADS 1 |
|
|
778 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
|
|
779 | |
|
|
780 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
781 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
782 | #endif |
|
|
783 | #endif |
|
|
784 | |
|
|
785 | #if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE |
|
|
786 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
787 | #endif |
|
|
788 | |
|
|
789 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
|
|
790 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
791 | #endif |
|
|
792 | |
|
|
793 | /*****************************************************************************/ |
|
|
794 | |
|
|
795 | #if ECB_CPP |
|
|
796 | #define ecb_inline static inline |
|
|
797 | #elif ECB_GCC_VERSION(2,5) |
|
|
798 | #define ecb_inline static __inline__ |
|
|
799 | #elif ECB_C99 |
|
|
800 | #define ecb_inline static inline |
|
|
801 | #else |
|
|
802 | #define ecb_inline static |
|
|
803 | #endif |
|
|
804 | |
|
|
805 | #if ECB_GCC_VERSION(3,3) |
|
|
806 | #define ecb_restrict __restrict__ |
|
|
807 | #elif ECB_C99 |
|
|
808 | #define ecb_restrict restrict |
|
|
809 | #else |
|
|
810 | #define ecb_restrict |
|
|
811 | #endif |
|
|
812 | |
|
|
813 | typedef int ecb_bool; |
|
|
814 | |
|
|
815 | #define ECB_CONCAT_(a, b) a ## b |
|
|
816 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
817 | #define ECB_STRINGIFY_(a) # a |
|
|
818 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
819 | #define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr)) |
|
|
820 | |
|
|
821 | #define ecb_function_ ecb_inline |
|
|
822 | |
|
|
823 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8) |
|
|
824 | #define ecb_attribute(attrlist) __attribute__ (attrlist) |
|
|
825 | #else |
|
|
826 | #define ecb_attribute(attrlist) |
|
|
827 | #endif |
|
|
828 | |
|
|
829 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_constant_p) |
|
|
830 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
831 | #else |
|
|
832 | /* possible C11 impl for integral types |
|
|
833 | typedef struct ecb_is_constant_struct ecb_is_constant_struct; |
|
|
834 | #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */ |
|
|
835 | |
|
|
836 | #define ecb_is_constant(expr) 0 |
|
|
837 | #endif |
|
|
838 | |
|
|
839 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_expect) |
464 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
840 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
465 | # define noinline __attribute__ ((noinline)) |
|
|
466 | #else |
841 | #else |
467 | # define expect(expr,value) (expr) |
842 | #define ecb_expect(expr,value) (expr) |
468 | # define noinline |
|
|
469 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
|
|
470 | # define inline |
|
|
471 | # endif |
843 | #endif |
472 | #endif |
|
|
473 | |
844 | |
|
|
845 | #if ECB_GCC_VERSION(3,1) || ECB_CLANG_BUILTIN(__builtin_prefetch) |
|
|
846 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
847 | #else |
|
|
848 | #define ecb_prefetch(addr,rw,locality) |
|
|
849 | #endif |
|
|
850 | |
|
|
851 | /* no emulation for ecb_decltype */ |
|
|
852 | #if ECB_CPP11 |
|
|
853 | // older implementations might have problems with decltype(x)::type, work around it |
|
|
854 | template<class T> struct ecb_decltype_t { typedef T type; }; |
|
|
855 | #define ecb_decltype(x) ecb_decltype_t<decltype (x)>::type |
|
|
856 | #elif ECB_GCC_VERSION(3,0) || ECB_CLANG_VERSION(2,8) |
|
|
857 | #define ecb_decltype(x) __typeof__ (x) |
|
|
858 | #endif |
|
|
859 | |
|
|
860 | #if _MSC_VER >= 1300 |
|
|
861 | #define ecb_deprecated __declspec (deprecated) |
|
|
862 | #else |
|
|
863 | #define ecb_deprecated ecb_attribute ((__deprecated__)) |
|
|
864 | #endif |
|
|
865 | |
|
|
866 | #if _MSC_VER >= 1500 |
|
|
867 | #define ecb_deprecated_message(msg) __declspec (deprecated (msg)) |
|
|
868 | #elif ECB_GCC_VERSION(4,5) |
|
|
869 | #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg)) |
|
|
870 | #else |
|
|
871 | #define ecb_deprecated_message(msg) ecb_deprecated |
|
|
872 | #endif |
|
|
873 | |
|
|
874 | #if _MSC_VER >= 1400 |
|
|
875 | #define ecb_noinline __declspec (noinline) |
|
|
876 | #else |
|
|
877 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
878 | #endif |
|
|
879 | |
|
|
880 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
881 | #define ecb_const ecb_attribute ((__const__)) |
|
|
882 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
883 | |
|
|
884 | #if ECB_C11 || __IBMC_NORETURN |
|
|
885 | /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */ |
|
|
886 | #define ecb_noreturn _Noreturn |
|
|
887 | #elif ECB_CPP11 |
|
|
888 | #define ecb_noreturn [[noreturn]] |
|
|
889 | #elif _MSC_VER >= 1200 |
|
|
890 | /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */ |
|
|
891 | #define ecb_noreturn __declspec (noreturn) |
|
|
892 | #else |
|
|
893 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
894 | #endif |
|
|
895 | |
|
|
896 | #if ECB_GCC_VERSION(4,3) |
|
|
897 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
898 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
899 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
900 | #else |
|
|
901 | #define ecb_artificial |
|
|
902 | #define ecb_hot |
|
|
903 | #define ecb_cold |
|
|
904 | #endif |
|
|
905 | |
|
|
906 | /* put around conditional expressions if you are very sure that the */ |
|
|
907 | /* expression is mostly true or mostly false. note that these return */ |
|
|
908 | /* booleans, not the expression. */ |
474 | #define expect_false(expr) expect ((expr) != 0, 0) |
909 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
475 | #define expect_true(expr) expect ((expr) != 0, 1) |
910 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
911 | /* for compatibility to the rest of the world */ |
|
|
912 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
913 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
|
|
914 | |
|
|
915 | /* count trailing zero bits and count # of one bits */ |
|
|
916 | #if ECB_GCC_VERSION(3,4) \ |
|
|
917 | || (ECB_CLANG_BUILTIN(__builtin_clz) && ECB_CLANG_BUILTIN(__builtin_clzll) \ |
|
|
918 | && ECB_CLANG_BUILTIN(__builtin_ctz) && ECB_CLANG_BUILTIN(__builtin_ctzll) \ |
|
|
919 | && ECB_CLANG_BUILTIN(__builtin_popcount)) |
|
|
920 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
921 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
|
|
922 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
923 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
924 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
925 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
926 | /* no popcountll */ |
|
|
927 | #else |
|
|
928 | ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); |
|
|
929 | ecb_function_ ecb_const int |
|
|
930 | ecb_ctz32 (uint32_t x) |
|
|
931 | { |
|
|
932 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
933 | unsigned long r; |
|
|
934 | _BitScanForward (&r, x); |
|
|
935 | return (int)r; |
|
|
936 | #else |
|
|
937 | int r = 0; |
|
|
938 | |
|
|
939 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
940 | |
|
|
941 | #if ECB_branchless_on_i386 |
|
|
942 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
943 | r += !!(x & 0xcccccccc) << 1; |
|
|
944 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
945 | r += !!(x & 0xff00ff00) << 3; |
|
|
946 | r += !!(x & 0xffff0000) << 4; |
|
|
947 | #else |
|
|
948 | if (x & 0xaaaaaaaa) r += 1; |
|
|
949 | if (x & 0xcccccccc) r += 2; |
|
|
950 | if (x & 0xf0f0f0f0) r += 4; |
|
|
951 | if (x & 0xff00ff00) r += 8; |
|
|
952 | if (x & 0xffff0000) r += 16; |
|
|
953 | #endif |
|
|
954 | |
|
|
955 | return r; |
|
|
956 | #endif |
|
|
957 | } |
|
|
958 | |
|
|
959 | ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); |
|
|
960 | ecb_function_ ecb_const int |
|
|
961 | ecb_ctz64 (uint64_t x) |
|
|
962 | { |
|
|
963 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
964 | unsigned long r; |
|
|
965 | _BitScanForward64 (&r, x); |
|
|
966 | return (int)r; |
|
|
967 | #else |
|
|
968 | int shift = x & 0xffffffff ? 0 : 32; |
|
|
969 | return ecb_ctz32 (x >> shift) + shift; |
|
|
970 | #endif |
|
|
971 | } |
|
|
972 | |
|
|
973 | ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); |
|
|
974 | ecb_function_ ecb_const int |
|
|
975 | ecb_popcount32 (uint32_t x) |
|
|
976 | { |
|
|
977 | x -= (x >> 1) & 0x55555555; |
|
|
978 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
979 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
980 | x *= 0x01010101; |
|
|
981 | |
|
|
982 | return x >> 24; |
|
|
983 | } |
|
|
984 | |
|
|
985 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x); |
|
|
986 | ecb_function_ ecb_const int ecb_ld32 (uint32_t x) |
|
|
987 | { |
|
|
988 | #if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM) |
|
|
989 | unsigned long r; |
|
|
990 | _BitScanReverse (&r, x); |
|
|
991 | return (int)r; |
|
|
992 | #else |
|
|
993 | int r = 0; |
|
|
994 | |
|
|
995 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
996 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
997 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
998 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
999 | if (x >> 1) { r += 1; } |
|
|
1000 | |
|
|
1001 | return r; |
|
|
1002 | #endif |
|
|
1003 | } |
|
|
1004 | |
|
|
1005 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x); |
|
|
1006 | ecb_function_ ecb_const int ecb_ld64 (uint64_t x) |
|
|
1007 | { |
|
|
1008 | #if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM) |
|
|
1009 | unsigned long r; |
|
|
1010 | _BitScanReverse64 (&r, x); |
|
|
1011 | return (int)r; |
|
|
1012 | #else |
|
|
1013 | int r = 0; |
|
|
1014 | |
|
|
1015 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
1016 | |
|
|
1017 | return r + ecb_ld32 (x); |
|
|
1018 | #endif |
|
|
1019 | } |
|
|
1020 | #endif |
|
|
1021 | |
|
|
1022 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x); |
|
|
1023 | ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
|
|
1024 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x); |
|
|
1025 | ecb_function_ ecb_const ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
|
|
1026 | |
|
|
1027 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x); |
|
|
1028 | ecb_function_ ecb_const uint8_t ecb_bitrev8 (uint8_t x) |
|
|
1029 | { |
|
|
1030 | return ( (x * 0x0802U & 0x22110U) |
|
|
1031 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
|
|
1032 | } |
|
|
1033 | |
|
|
1034 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x); |
|
|
1035 | ecb_function_ ecb_const uint16_t ecb_bitrev16 (uint16_t x) |
|
|
1036 | { |
|
|
1037 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
|
|
1038 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
|
|
1039 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
|
|
1040 | x = ( x >> 8 ) | ( x << 8); |
|
|
1041 | |
|
|
1042 | return x; |
|
|
1043 | } |
|
|
1044 | |
|
|
1045 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x); |
|
|
1046 | ecb_function_ ecb_const uint32_t ecb_bitrev32 (uint32_t x) |
|
|
1047 | { |
|
|
1048 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
|
|
1049 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
|
|
1050 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
|
|
1051 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
|
|
1052 | x = ( x >> 16 ) | ( x << 16); |
|
|
1053 | |
|
|
1054 | return x; |
|
|
1055 | } |
|
|
1056 | |
|
|
1057 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
1058 | /* so for this version we are lazy */ |
|
|
1059 | ecb_function_ ecb_const int ecb_popcount64 (uint64_t x); |
|
|
1060 | ecb_function_ ecb_const int |
|
|
1061 | ecb_popcount64 (uint64_t x) |
|
|
1062 | { |
|
|
1063 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
1064 | } |
|
|
1065 | |
|
|
1066 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count); |
|
|
1067 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count); |
|
|
1068 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count); |
|
|
1069 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count); |
|
|
1070 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count); |
|
|
1071 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count); |
|
|
1072 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count); |
|
|
1073 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count); |
|
|
1074 | |
|
|
1075 | ecb_inline ecb_const uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
|
|
1076 | ecb_inline ecb_const uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
|
|
1077 | ecb_inline ecb_const uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
|
|
1078 | ecb_inline ecb_const uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
|
|
1079 | ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
|
|
1080 | ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
|
|
1081 | ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
|
|
1082 | ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
|
|
1083 | |
|
|
1084 | #if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) |
|
|
1085 | #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16) |
|
|
1086 | #define ecb_bswap16(x) __builtin_bswap16 (x) |
|
|
1087 | #else |
|
|
1088 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
1089 | #endif |
|
|
1090 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
|
|
1091 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
1092 | #elif _MSC_VER |
|
|
1093 | #include <stdlib.h> |
|
|
1094 | #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x))) |
|
|
1095 | #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x))) |
|
|
1096 | #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x))) |
|
|
1097 | #else |
|
|
1098 | ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x); |
|
|
1099 | ecb_function_ ecb_const uint16_t |
|
|
1100 | ecb_bswap16 (uint16_t x) |
|
|
1101 | { |
|
|
1102 | return ecb_rotl16 (x, 8); |
|
|
1103 | } |
|
|
1104 | |
|
|
1105 | ecb_function_ ecb_const uint32_t ecb_bswap32 (uint32_t x); |
|
|
1106 | ecb_function_ ecb_const uint32_t |
|
|
1107 | ecb_bswap32 (uint32_t x) |
|
|
1108 | { |
|
|
1109 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
|
|
1110 | } |
|
|
1111 | |
|
|
1112 | ecb_function_ ecb_const uint64_t ecb_bswap64 (uint64_t x); |
|
|
1113 | ecb_function_ ecb_const uint64_t |
|
|
1114 | ecb_bswap64 (uint64_t x) |
|
|
1115 | { |
|
|
1116 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
|
|
1117 | } |
|
|
1118 | #endif |
|
|
1119 | |
|
|
1120 | #if ECB_GCC_VERSION(4,5) || ECB_CLANG_BUILTIN(__builtin_unreachable) |
|
|
1121 | #define ecb_unreachable() __builtin_unreachable () |
|
|
1122 | #else |
|
|
1123 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
1124 | ecb_inline ecb_noreturn void ecb_unreachable (void); |
|
|
1125 | ecb_inline ecb_noreturn void ecb_unreachable (void) { } |
|
|
1126 | #endif |
|
|
1127 | |
|
|
1128 | /* try to tell the compiler that some condition is definitely true */ |
|
|
1129 | #define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 |
|
|
1130 | |
|
|
1131 | ecb_inline ecb_const uint32_t ecb_byteorder_helper (void); |
|
|
1132 | ecb_inline ecb_const uint32_t |
|
|
1133 | ecb_byteorder_helper (void) |
|
|
1134 | { |
|
|
1135 | /* the union code still generates code under pressure in gcc, */ |
|
|
1136 | /* but less than using pointers, and always seems to */ |
|
|
1137 | /* successfully return a constant. */ |
|
|
1138 | /* the reason why we have this horrible preprocessor mess */ |
|
|
1139 | /* is to avoid it in all cases, at least on common architectures */ |
|
|
1140 | /* or when using a recent enough gcc version (>= 4.6) */ |
|
|
1141 | #if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \ |
|
|
1142 | || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__) |
|
|
1143 | #define ECB_LITTLE_ENDIAN 1 |
|
|
1144 | return 0x44332211; |
|
|
1145 | #elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \ |
|
|
1146 | || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__) |
|
|
1147 | #define ECB_BIG_ENDIAN 1 |
|
|
1148 | return 0x11223344; |
|
|
1149 | #else |
|
|
1150 | union |
|
|
1151 | { |
|
|
1152 | uint8_t c[4]; |
|
|
1153 | uint32_t u; |
|
|
1154 | } u = { 0x11, 0x22, 0x33, 0x44 }; |
|
|
1155 | return u.u; |
|
|
1156 | #endif |
|
|
1157 | } |
|
|
1158 | |
|
|
1159 | ecb_inline ecb_const ecb_bool ecb_big_endian (void); |
|
|
1160 | ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; } |
|
|
1161 | ecb_inline ecb_const ecb_bool ecb_little_endian (void); |
|
|
1162 | ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; } |
|
|
1163 | |
|
|
1164 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
1165 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
1166 | #else |
|
|
1167 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
1168 | #endif |
|
|
1169 | |
|
|
1170 | #if ECB_CPP |
|
|
1171 | template<typename T> |
|
|
1172 | static inline T ecb_div_rd (T val, T div) |
|
|
1173 | { |
|
|
1174 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
|
|
1175 | } |
|
|
1176 | template<typename T> |
|
|
1177 | static inline T ecb_div_ru (T val, T div) |
|
|
1178 | { |
|
|
1179 | return val < 0 ? - ((-val ) / div) : (val + div - 1) / div; |
|
|
1180 | } |
|
|
1181 | #else |
|
|
1182 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
|
|
1183 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
|
|
1184 | #endif |
|
|
1185 | |
|
|
1186 | #if ecb_cplusplus_does_not_suck |
|
|
1187 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
1188 | template<typename T, int N> |
|
|
1189 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
1190 | { |
|
|
1191 | return N; |
|
|
1192 | } |
|
|
1193 | #else |
|
|
1194 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
1195 | #endif |
|
|
1196 | |
|
|
1197 | ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x); |
|
|
1198 | ecb_function_ ecb_const uint32_t |
|
|
1199 | ecb_binary16_to_binary32 (uint32_t x) |
|
|
1200 | { |
|
|
1201 | unsigned int s = (x & 0x8000) << (31 - 15); |
|
|
1202 | int e = (x >> 10) & 0x001f; |
|
|
1203 | unsigned int m = x & 0x03ff; |
|
|
1204 | |
|
|
1205 | if (ecb_expect_false (e == 31)) |
|
|
1206 | /* infinity or NaN */ |
|
|
1207 | e = 255 - (127 - 15); |
|
|
1208 | else if (ecb_expect_false (!e)) |
|
|
1209 | { |
|
|
1210 | if (ecb_expect_true (!m)) |
|
|
1211 | /* zero, handled by code below by forcing e to 0 */ |
|
|
1212 | e = 0 - (127 - 15); |
|
|
1213 | else |
|
|
1214 | { |
|
|
1215 | /* subnormal, renormalise */ |
|
|
1216 | unsigned int s = 10 - ecb_ld32 (m); |
|
|
1217 | |
|
|
1218 | m = (m << s) & 0x3ff; /* mask implicit bit */ |
|
|
1219 | e -= s - 1; |
|
|
1220 | } |
|
|
1221 | } |
|
|
1222 | |
|
|
1223 | /* e and m now are normalised, or zero, (or inf or nan) */ |
|
|
1224 | e += 127 - 15; |
|
|
1225 | |
|
|
1226 | return s | (e << 23) | (m << (23 - 10)); |
|
|
1227 | } |
|
|
1228 | |
|
|
1229 | ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x); |
|
|
1230 | ecb_function_ ecb_const uint16_t |
|
|
1231 | ecb_binary32_to_binary16 (uint32_t x) |
|
|
1232 | { |
|
|
1233 | unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */ |
|
|
1234 | unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */ |
|
|
1235 | unsigned int m = x & 0x007fffff; |
|
|
1236 | |
|
|
1237 | x &= 0x7fffffff; |
|
|
1238 | |
|
|
1239 | /* if it's within range of binary16 normals, use fast path */ |
|
|
1240 | if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff)) |
|
|
1241 | { |
|
|
1242 | /* mantissa round-to-even */ |
|
|
1243 | m += 0x00000fff + ((m >> (23 - 10)) & 1); |
|
|
1244 | |
|
|
1245 | /* handle overflow */ |
|
|
1246 | if (ecb_expect_false (m >= 0x00800000)) |
|
|
1247 | { |
|
|
1248 | m >>= 1; |
|
|
1249 | e += 1; |
|
|
1250 | } |
|
|
1251 | |
|
|
1252 | return s | (e << 10) | (m >> (23 - 10)); |
|
|
1253 | } |
|
|
1254 | |
|
|
1255 | /* handle large numbers and infinity */ |
|
|
1256 | if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000)) |
|
|
1257 | return s | 0x7c00; |
|
|
1258 | |
|
|
1259 | /* handle zero, subnormals and small numbers */ |
|
|
1260 | if (ecb_expect_true (x < 0x38800000)) |
|
|
1261 | { |
|
|
1262 | /* zero */ |
|
|
1263 | if (ecb_expect_true (!x)) |
|
|
1264 | return s; |
|
|
1265 | |
|
|
1266 | /* handle subnormals */ |
|
|
1267 | |
|
|
1268 | /* too small, will be zero */ |
|
|
1269 | if (e < (14 - 24)) /* might not be sharp, but is good enough */ |
|
|
1270 | return s; |
|
|
1271 | |
|
|
1272 | m |= 0x00800000; /* make implicit bit explicit */ |
|
|
1273 | |
|
|
1274 | /* very tricky - we need to round to the nearest e (+10) bit value */ |
|
|
1275 | { |
|
|
1276 | unsigned int bits = 14 - e; |
|
|
1277 | unsigned int half = (1 << (bits - 1)) - 1; |
|
|
1278 | unsigned int even = (m >> bits) & 1; |
|
|
1279 | |
|
|
1280 | /* if this overflows, we will end up with a normalised number */ |
|
|
1281 | m = (m + half + even) >> bits; |
|
|
1282 | } |
|
|
1283 | |
|
|
1284 | return s | m; |
|
|
1285 | } |
|
|
1286 | |
|
|
1287 | /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */ |
|
|
1288 | m >>= 13; |
|
|
1289 | |
|
|
1290 | return s | 0x7c00 | m | !m; |
|
|
1291 | } |
|
|
1292 | |
|
|
1293 | /*******************************************************************************/ |
|
|
1294 | /* floating point stuff, can be disabled by defining ECB_NO_LIBM */ |
|
|
1295 | |
|
|
1296 | /* basically, everything uses "ieee pure-endian" floating point numbers */ |
|
|
1297 | /* the only noteworthy exception is ancient armle, which uses order 43218765 */ |
|
|
1298 | #if 0 \ |
|
|
1299 | || __i386 || __i386__ \ |
|
|
1300 | || ECB_GCC_AMD64 \ |
|
|
1301 | || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ |
|
|
1302 | || defined __s390__ || defined __s390x__ \ |
|
|
1303 | || defined __mips__ \ |
|
|
1304 | || defined __alpha__ \ |
|
|
1305 | || defined __hppa__ \ |
|
|
1306 | || defined __ia64__ \ |
|
|
1307 | || defined __m68k__ \ |
|
|
1308 | || defined __m88k__ \ |
|
|
1309 | || defined __sh__ \ |
|
|
1310 | || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ |
|
|
1311 | || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ |
|
|
1312 | || defined __aarch64__ |
|
|
1313 | #define ECB_STDFP 1 |
|
|
1314 | #include <string.h> /* for memcpy */ |
|
|
1315 | #else |
|
|
1316 | #define ECB_STDFP 0 |
|
|
1317 | #endif |
|
|
1318 | |
|
|
1319 | #ifndef ECB_NO_LIBM |
|
|
1320 | |
|
|
1321 | #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */ |
|
|
1322 | |
|
|
1323 | /* only the oldest of old doesn't have this one. solaris. */ |
|
|
1324 | #ifdef INFINITY |
|
|
1325 | #define ECB_INFINITY INFINITY |
|
|
1326 | #else |
|
|
1327 | #define ECB_INFINITY HUGE_VAL |
|
|
1328 | #endif |
|
|
1329 | |
|
|
1330 | #ifdef NAN |
|
|
1331 | #define ECB_NAN NAN |
|
|
1332 | #else |
|
|
1333 | #define ECB_NAN ECB_INFINITY |
|
|
1334 | #endif |
|
|
1335 | |
|
|
1336 | #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L |
|
|
1337 | #define ecb_ldexpf(x,e) ldexpf ((x), (e)) |
|
|
1338 | #define ecb_frexpf(x,e) frexpf ((x), (e)) |
|
|
1339 | #else |
|
|
1340 | #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e)) |
|
|
1341 | #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e)) |
|
|
1342 | #endif |
|
|
1343 | |
|
|
1344 | /* convert a float to ieee single/binary32 */ |
|
|
1345 | ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x); |
|
|
1346 | ecb_function_ ecb_const uint32_t |
|
|
1347 | ecb_float_to_binary32 (float x) |
|
|
1348 | { |
|
|
1349 | uint32_t r; |
|
|
1350 | |
|
|
1351 | #if ECB_STDFP |
|
|
1352 | memcpy (&r, &x, 4); |
|
|
1353 | #else |
|
|
1354 | /* slow emulation, works for anything but -0 */ |
|
|
1355 | uint32_t m; |
|
|
1356 | int e; |
|
|
1357 | |
|
|
1358 | if (x == 0e0f ) return 0x00000000U; |
|
|
1359 | if (x > +3.40282346638528860e+38f) return 0x7f800000U; |
|
|
1360 | if (x < -3.40282346638528860e+38f) return 0xff800000U; |
|
|
1361 | if (x != x ) return 0x7fbfffffU; |
|
|
1362 | |
|
|
1363 | m = ecb_frexpf (x, &e) * 0x1000000U; |
|
|
1364 | |
|
|
1365 | r = m & 0x80000000U; |
|
|
1366 | |
|
|
1367 | if (r) |
|
|
1368 | m = -m; |
|
|
1369 | |
|
|
1370 | if (e <= -126) |
|
|
1371 | { |
|
|
1372 | m &= 0xffffffU; |
|
|
1373 | m >>= (-125 - e); |
|
|
1374 | e = -126; |
|
|
1375 | } |
|
|
1376 | |
|
|
1377 | r |= (e + 126) << 23; |
|
|
1378 | r |= m & 0x7fffffU; |
|
|
1379 | #endif |
|
|
1380 | |
|
|
1381 | return r; |
|
|
1382 | } |
|
|
1383 | |
|
|
1384 | /* converts an ieee single/binary32 to a float */ |
|
|
1385 | ecb_function_ ecb_const float ecb_binary32_to_float (uint32_t x); |
|
|
1386 | ecb_function_ ecb_const float |
|
|
1387 | ecb_binary32_to_float (uint32_t x) |
|
|
1388 | { |
|
|
1389 | float r; |
|
|
1390 | |
|
|
1391 | #if ECB_STDFP |
|
|
1392 | memcpy (&r, &x, 4); |
|
|
1393 | #else |
|
|
1394 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1395 | int neg = x >> 31; |
|
|
1396 | int e = (x >> 23) & 0xffU; |
|
|
1397 | |
|
|
1398 | x &= 0x7fffffU; |
|
|
1399 | |
|
|
1400 | if (e) |
|
|
1401 | x |= 0x800000U; |
|
|
1402 | else |
|
|
1403 | e = 1; |
|
|
1404 | |
|
|
1405 | /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */ |
|
|
1406 | r = ecb_ldexpf (x * (0.5f / 0x800000U), e - 126); |
|
|
1407 | |
|
|
1408 | r = neg ? -r : r; |
|
|
1409 | #endif |
|
|
1410 | |
|
|
1411 | return r; |
|
|
1412 | } |
|
|
1413 | |
|
|
1414 | /* convert a double to ieee double/binary64 */ |
|
|
1415 | ecb_function_ ecb_const uint64_t ecb_double_to_binary64 (double x); |
|
|
1416 | ecb_function_ ecb_const uint64_t |
|
|
1417 | ecb_double_to_binary64 (double x) |
|
|
1418 | { |
|
|
1419 | uint64_t r; |
|
|
1420 | |
|
|
1421 | #if ECB_STDFP |
|
|
1422 | memcpy (&r, &x, 8); |
|
|
1423 | #else |
|
|
1424 | /* slow emulation, works for anything but -0 */ |
|
|
1425 | uint64_t m; |
|
|
1426 | int e; |
|
|
1427 | |
|
|
1428 | if (x == 0e0 ) return 0x0000000000000000U; |
|
|
1429 | if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U; |
|
|
1430 | if (x < -1.79769313486231470e+308) return 0xfff0000000000000U; |
|
|
1431 | if (x != x ) return 0X7ff7ffffffffffffU; |
|
|
1432 | |
|
|
1433 | m = frexp (x, &e) * 0x20000000000000U; |
|
|
1434 | |
|
|
1435 | r = m & 0x8000000000000000;; |
|
|
1436 | |
|
|
1437 | if (r) |
|
|
1438 | m = -m; |
|
|
1439 | |
|
|
1440 | if (e <= -1022) |
|
|
1441 | { |
|
|
1442 | m &= 0x1fffffffffffffU; |
|
|
1443 | m >>= (-1021 - e); |
|
|
1444 | e = -1022; |
|
|
1445 | } |
|
|
1446 | |
|
|
1447 | r |= ((uint64_t)(e + 1022)) << 52; |
|
|
1448 | r |= m & 0xfffffffffffffU; |
|
|
1449 | #endif |
|
|
1450 | |
|
|
1451 | return r; |
|
|
1452 | } |
|
|
1453 | |
|
|
1454 | /* converts an ieee double/binary64 to a double */ |
|
|
1455 | ecb_function_ ecb_const double ecb_binary64_to_double (uint64_t x); |
|
|
1456 | ecb_function_ ecb_const double |
|
|
1457 | ecb_binary64_to_double (uint64_t x) |
|
|
1458 | { |
|
|
1459 | double r; |
|
|
1460 | |
|
|
1461 | #if ECB_STDFP |
|
|
1462 | memcpy (&r, &x, 8); |
|
|
1463 | #else |
|
|
1464 | /* emulation, only works for normals and subnormals and +0 */ |
|
|
1465 | int neg = x >> 63; |
|
|
1466 | int e = (x >> 52) & 0x7ffU; |
|
|
1467 | |
|
|
1468 | x &= 0xfffffffffffffU; |
|
|
1469 | |
|
|
1470 | if (e) |
|
|
1471 | x |= 0x10000000000000U; |
|
|
1472 | else |
|
|
1473 | e = 1; |
|
|
1474 | |
|
|
1475 | /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */ |
|
|
1476 | r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022); |
|
|
1477 | |
|
|
1478 | r = neg ? -r : r; |
|
|
1479 | #endif |
|
|
1480 | |
|
|
1481 | return r; |
|
|
1482 | } |
|
|
1483 | |
|
|
1484 | /* convert a float to ieee half/binary16 */ |
|
|
1485 | ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x); |
|
|
1486 | ecb_function_ ecb_const uint16_t |
|
|
1487 | ecb_float_to_binary16 (float x) |
|
|
1488 | { |
|
|
1489 | return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x)); |
|
|
1490 | } |
|
|
1491 | |
|
|
1492 | /* convert an ieee half/binary16 to float */ |
|
|
1493 | ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x); |
|
|
1494 | ecb_function_ ecb_const float |
|
|
1495 | ecb_binary16_to_float (uint16_t x) |
|
|
1496 | { |
|
|
1497 | return ecb_binary32_to_float (ecb_binary16_to_binary32 (x)); |
|
|
1498 | } |
|
|
1499 | |
|
|
1500 | #endif |
|
|
1501 | |
|
|
1502 | #endif |
|
|
1503 | |
|
|
1504 | /* ECB.H END */ |
|
|
1505 | |
|
|
1506 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
1507 | /* if your architecture doesn't need memory fences, e.g. because it is |
|
|
1508 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
|
|
1509 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
|
|
1510 | * libev, in which cases the memory fences become nops. |
|
|
1511 | * alternatively, you can remove this #error and link against libpthread, |
|
|
1512 | * which will then provide the memory fences. |
|
|
1513 | */ |
|
|
1514 | # error "memory fences not defined for your architecture, please report" |
|
|
1515 | #endif |
|
|
1516 | |
|
|
1517 | #ifndef ECB_MEMORY_FENCE |
|
|
1518 | # define ECB_MEMORY_FENCE do { } while (0) |
|
|
1519 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
1520 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
1521 | #endif |
|
|
1522 | |
|
|
1523 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
1524 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
1525 | #define noinline ecb_noinline |
|
|
1526 | |
476 | #define inline_size static inline |
1527 | #define inline_size ecb_inline |
477 | |
1528 | |
478 | #if EV_FEATURE_CODE |
1529 | #if EV_FEATURE_CODE |
479 | # define inline_speed static inline |
1530 | # define inline_speed ecb_inline |
480 | #else |
1531 | #else |
481 | # define inline_speed static noinline |
1532 | # define inline_speed static noinline |
482 | #endif |
1533 | #endif |
483 | |
1534 | |
484 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1535 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
… | |
… | |
523 | # include "ev_win32.c" |
1574 | # include "ev_win32.c" |
524 | #endif |
1575 | #endif |
525 | |
1576 | |
526 | /*****************************************************************************/ |
1577 | /*****************************************************************************/ |
527 | |
1578 | |
|
|
1579 | /* define a suitable floor function (only used by periodics atm) */ |
|
|
1580 | |
|
|
1581 | #if EV_USE_FLOOR |
|
|
1582 | # include <math.h> |
|
|
1583 | # define ev_floor(v) floor (v) |
|
|
1584 | #else |
|
|
1585 | |
|
|
1586 | #include <float.h> |
|
|
1587 | |
|
|
1588 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1589 | static ev_tstamp noinline |
|
|
1590 | ev_floor (ev_tstamp v) |
|
|
1591 | { |
|
|
1592 | /* the choice of shift factor is not terribly important */ |
|
|
1593 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
|
|
1594 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
|
|
1595 | #else |
|
|
1596 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
|
|
1597 | #endif |
|
|
1598 | |
|
|
1599 | /* argument too large for an unsigned long? */ |
|
|
1600 | if (expect_false (v >= shift)) |
|
|
1601 | { |
|
|
1602 | ev_tstamp f; |
|
|
1603 | |
|
|
1604 | if (v == v - 1.) |
|
|
1605 | return v; /* very large number */ |
|
|
1606 | |
|
|
1607 | f = shift * ev_floor (v * (1. / shift)); |
|
|
1608 | return f + ev_floor (v - f); |
|
|
1609 | } |
|
|
1610 | |
|
|
1611 | /* special treatment for negative args? */ |
|
|
1612 | if (expect_false (v < 0.)) |
|
|
1613 | { |
|
|
1614 | ev_tstamp f = -ev_floor (-v); |
|
|
1615 | |
|
|
1616 | return f - (f == v ? 0 : 1); |
|
|
1617 | } |
|
|
1618 | |
|
|
1619 | /* fits into an unsigned long */ |
|
|
1620 | return (unsigned long)v; |
|
|
1621 | } |
|
|
1622 | |
|
|
1623 | #endif |
|
|
1624 | |
|
|
1625 | /*****************************************************************************/ |
|
|
1626 | |
|
|
1627 | #ifdef __linux |
|
|
1628 | # include <sys/utsname.h> |
|
|
1629 | #endif |
|
|
1630 | |
|
|
1631 | static unsigned int noinline ecb_cold |
|
|
1632 | ev_linux_version (void) |
|
|
1633 | { |
|
|
1634 | #ifdef __linux |
|
|
1635 | unsigned int v = 0; |
|
|
1636 | struct utsname buf; |
|
|
1637 | int i; |
|
|
1638 | char *p = buf.release; |
|
|
1639 | |
|
|
1640 | if (uname (&buf)) |
|
|
1641 | return 0; |
|
|
1642 | |
|
|
1643 | for (i = 3+1; --i; ) |
|
|
1644 | { |
|
|
1645 | unsigned int c = 0; |
|
|
1646 | |
|
|
1647 | for (;;) |
|
|
1648 | { |
|
|
1649 | if (*p >= '0' && *p <= '9') |
|
|
1650 | c = c * 10 + *p++ - '0'; |
|
|
1651 | else |
|
|
1652 | { |
|
|
1653 | p += *p == '.'; |
|
|
1654 | break; |
|
|
1655 | } |
|
|
1656 | } |
|
|
1657 | |
|
|
1658 | v = (v << 8) | c; |
|
|
1659 | } |
|
|
1660 | |
|
|
1661 | return v; |
|
|
1662 | #else |
|
|
1663 | return 0; |
|
|
1664 | #endif |
|
|
1665 | } |
|
|
1666 | |
|
|
1667 | /*****************************************************************************/ |
|
|
1668 | |
528 | #if EV_AVOID_STDIO |
1669 | #if EV_AVOID_STDIO |
529 | static void noinline |
1670 | static void noinline ecb_cold |
530 | ev_printerr (const char *msg) |
1671 | ev_printerr (const char *msg) |
531 | { |
1672 | { |
532 | write (STDERR_FILENO, msg, strlen (msg)); |
1673 | write (STDERR_FILENO, msg, strlen (msg)); |
533 | } |
1674 | } |
534 | #endif |
1675 | #endif |
535 | |
1676 | |
536 | static void (*syserr_cb)(const char *msg); |
1677 | static void (*syserr_cb)(const char *msg) EV_THROW; |
537 | |
1678 | |
538 | void |
1679 | void ecb_cold |
539 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1680 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
540 | { |
1681 | { |
541 | syserr_cb = cb; |
1682 | syserr_cb = cb; |
542 | } |
1683 | } |
543 | |
1684 | |
544 | static void noinline |
1685 | static void noinline ecb_cold |
545 | ev_syserr (const char *msg) |
1686 | ev_syserr (const char *msg) |
546 | { |
1687 | { |
547 | if (!msg) |
1688 | if (!msg) |
548 | msg = "(libev) system error"; |
1689 | msg = "(libev) system error"; |
549 | |
1690 | |
550 | if (syserr_cb) |
1691 | if (syserr_cb) |
551 | syserr_cb (msg); |
1692 | syserr_cb (msg); |
552 | else |
1693 | else |
553 | { |
1694 | { |
554 | #if EV_AVOID_STDIO |
1695 | #if EV_AVOID_STDIO |
555 | const char *err = strerror (errno); |
|
|
556 | |
|
|
557 | ev_printerr (msg); |
1696 | ev_printerr (msg); |
558 | ev_printerr (": "); |
1697 | ev_printerr (": "); |
559 | ev_printerr (err); |
1698 | ev_printerr (strerror (errno)); |
560 | ev_printerr ("\n"); |
1699 | ev_printerr ("\n"); |
561 | #else |
1700 | #else |
562 | perror (msg); |
1701 | perror (msg); |
563 | #endif |
1702 | #endif |
564 | abort (); |
1703 | abort (); |
565 | } |
1704 | } |
566 | } |
1705 | } |
567 | |
1706 | |
568 | static void * |
1707 | static void * |
569 | ev_realloc_emul (void *ptr, long size) |
1708 | ev_realloc_emul (void *ptr, long size) EV_THROW |
570 | { |
1709 | { |
571 | #if __GLIBC__ |
|
|
572 | return realloc (ptr, size); |
|
|
573 | #else |
|
|
574 | /* some systems, notably openbsd and darwin, fail to properly |
1710 | /* some systems, notably openbsd and darwin, fail to properly |
575 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1711 | * implement realloc (x, 0) (as required by both ansi c-89 and |
576 | * the single unix specification, so work around them here. |
1712 | * the single unix specification, so work around them here. |
|
|
1713 | * recently, also (at least) fedora and debian started breaking it, |
|
|
1714 | * despite documenting it otherwise. |
577 | */ |
1715 | */ |
578 | |
1716 | |
579 | if (size) |
1717 | if (size) |
580 | return realloc (ptr, size); |
1718 | return realloc (ptr, size); |
581 | |
1719 | |
582 | free (ptr); |
1720 | free (ptr); |
583 | return 0; |
1721 | return 0; |
584 | #endif |
|
|
585 | } |
1722 | } |
586 | |
1723 | |
587 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1724 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
588 | |
1725 | |
589 | void |
1726 | void ecb_cold |
590 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1727 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
591 | { |
1728 | { |
592 | alloc = cb; |
1729 | alloc = cb; |
593 | } |
1730 | } |
594 | |
1731 | |
595 | inline_speed void * |
1732 | inline_speed void * |
… | |
… | |
598 | ptr = alloc (ptr, size); |
1735 | ptr = alloc (ptr, size); |
599 | |
1736 | |
600 | if (!ptr && size) |
1737 | if (!ptr && size) |
601 | { |
1738 | { |
602 | #if EV_AVOID_STDIO |
1739 | #if EV_AVOID_STDIO |
603 | ev_printerr ("libev: memory allocation failed, aborting.\n"); |
1740 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
604 | #else |
1741 | #else |
605 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
1742 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
606 | #endif |
1743 | #endif |
607 | abort (); |
1744 | abort (); |
608 | } |
1745 | } |
609 | |
1746 | |
610 | return ptr; |
1747 | return ptr; |
… | |
… | |
627 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
1764 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
628 | unsigned char unused; |
1765 | unsigned char unused; |
629 | #if EV_USE_EPOLL |
1766 | #if EV_USE_EPOLL |
630 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1767 | unsigned int egen; /* generation counter to counter epoll bugs */ |
631 | #endif |
1768 | #endif |
632 | #if EV_SELECT_IS_WINSOCKET |
1769 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
633 | SOCKET handle; |
1770 | SOCKET handle; |
|
|
1771 | #endif |
|
|
1772 | #if EV_USE_IOCP |
|
|
1773 | OVERLAPPED or, ow; |
634 | #endif |
1774 | #endif |
635 | } ANFD; |
1775 | } ANFD; |
636 | |
1776 | |
637 | /* stores the pending event set for a given watcher */ |
1777 | /* stores the pending event set for a given watcher */ |
638 | typedef struct |
1778 | typedef struct |
… | |
… | |
680 | #undef VAR |
1820 | #undef VAR |
681 | }; |
1821 | }; |
682 | #include "ev_wrap.h" |
1822 | #include "ev_wrap.h" |
683 | |
1823 | |
684 | static struct ev_loop default_loop_struct; |
1824 | static struct ev_loop default_loop_struct; |
685 | struct ev_loop *ev_default_loop_ptr; |
1825 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
686 | |
1826 | |
687 | #else |
1827 | #else |
688 | |
1828 | |
689 | ev_tstamp ev_rt_now; |
1829 | EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ |
690 | #define VAR(name,decl) static decl; |
1830 | #define VAR(name,decl) static decl; |
691 | #include "ev_vars.h" |
1831 | #include "ev_vars.h" |
692 | #undef VAR |
1832 | #undef VAR |
693 | |
1833 | |
694 | static int ev_default_loop_ptr; |
1834 | static int ev_default_loop_ptr; |
… | |
… | |
709 | |
1849 | |
710 | /*****************************************************************************/ |
1850 | /*****************************************************************************/ |
711 | |
1851 | |
712 | #ifndef EV_HAVE_EV_TIME |
1852 | #ifndef EV_HAVE_EV_TIME |
713 | ev_tstamp |
1853 | ev_tstamp |
714 | ev_time (void) |
1854 | ev_time (void) EV_THROW |
715 | { |
1855 | { |
716 | #if EV_USE_REALTIME |
1856 | #if EV_USE_REALTIME |
717 | if (expect_true (have_realtime)) |
1857 | if (expect_true (have_realtime)) |
718 | { |
1858 | { |
719 | struct timespec ts; |
1859 | struct timespec ts; |
… | |
… | |
743 | return ev_time (); |
1883 | return ev_time (); |
744 | } |
1884 | } |
745 | |
1885 | |
746 | #if EV_MULTIPLICITY |
1886 | #if EV_MULTIPLICITY |
747 | ev_tstamp |
1887 | ev_tstamp |
748 | ev_now (EV_P) |
1888 | ev_now (EV_P) EV_THROW |
749 | { |
1889 | { |
750 | return ev_rt_now; |
1890 | return ev_rt_now; |
751 | } |
1891 | } |
752 | #endif |
1892 | #endif |
753 | |
1893 | |
754 | void |
1894 | void |
755 | ev_sleep (ev_tstamp delay) |
1895 | ev_sleep (ev_tstamp delay) EV_THROW |
756 | { |
1896 | { |
757 | if (delay > 0.) |
1897 | if (delay > 0.) |
758 | { |
1898 | { |
759 | #if EV_USE_NANOSLEEP |
1899 | #if EV_USE_NANOSLEEP |
760 | struct timespec ts; |
1900 | struct timespec ts; |
761 | |
1901 | |
762 | EV_TS_SET (ts, delay); |
1902 | EV_TS_SET (ts, delay); |
763 | nanosleep (&ts, 0); |
1903 | nanosleep (&ts, 0); |
764 | #elif defined(_WIN32) |
1904 | #elif defined _WIN32 |
765 | Sleep ((unsigned long)(delay * 1e3)); |
1905 | Sleep ((unsigned long)(delay * 1e3)); |
766 | #else |
1906 | #else |
767 | struct timeval tv; |
1907 | struct timeval tv; |
768 | |
1908 | |
769 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
1909 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
… | |
… | |
788 | |
1928 | |
789 | do |
1929 | do |
790 | ncur <<= 1; |
1930 | ncur <<= 1; |
791 | while (cnt > ncur); |
1931 | while (cnt > ncur); |
792 | |
1932 | |
793 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
1933 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
794 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
1934 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
795 | { |
1935 | { |
796 | ncur *= elem; |
1936 | ncur *= elem; |
797 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
1937 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
798 | ncur = ncur - sizeof (void *) * 4; |
1938 | ncur = ncur - sizeof (void *) * 4; |
… | |
… | |
800 | } |
1940 | } |
801 | |
1941 | |
802 | return ncur; |
1942 | return ncur; |
803 | } |
1943 | } |
804 | |
1944 | |
805 | static noinline void * |
1945 | static void * noinline ecb_cold |
806 | array_realloc (int elem, void *base, int *cur, int cnt) |
1946 | array_realloc (int elem, void *base, int *cur, int cnt) |
807 | { |
1947 | { |
808 | *cur = array_nextsize (elem, *cur, cnt); |
1948 | *cur = array_nextsize (elem, *cur, cnt); |
809 | return ev_realloc (base, elem * *cur); |
1949 | return ev_realloc (base, elem * *cur); |
810 | } |
1950 | } |
… | |
… | |
813 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1953 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
814 | |
1954 | |
815 | #define array_needsize(type,base,cur,cnt,init) \ |
1955 | #define array_needsize(type,base,cur,cnt,init) \ |
816 | if (expect_false ((cnt) > (cur))) \ |
1956 | if (expect_false ((cnt) > (cur))) \ |
817 | { \ |
1957 | { \ |
818 | int ocur_ = (cur); \ |
1958 | int ecb_unused ocur_ = (cur); \ |
819 | (base) = (type *)array_realloc \ |
1959 | (base) = (type *)array_realloc \ |
820 | (sizeof (type), (base), &(cur), (cnt)); \ |
1960 | (sizeof (type), (base), &(cur), (cnt)); \ |
821 | init ((base) + (ocur_), (cur) - ocur_); \ |
1961 | init ((base) + (ocur_), (cur) - ocur_); \ |
822 | } |
1962 | } |
823 | |
1963 | |
… | |
… | |
841 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1981 | pendingcb (EV_P_ ev_prepare *w, int revents) |
842 | { |
1982 | { |
843 | } |
1983 | } |
844 | |
1984 | |
845 | void noinline |
1985 | void noinline |
846 | ev_feed_event (EV_P_ void *w, int revents) |
1986 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
847 | { |
1987 | { |
848 | W w_ = (W)w; |
1988 | W w_ = (W)w; |
849 | int pri = ABSPRI (w_); |
1989 | int pri = ABSPRI (w_); |
850 | |
1990 | |
851 | if (expect_false (w_->pending)) |
1991 | if (expect_false (w_->pending)) |
… | |
… | |
855 | w_->pending = ++pendingcnt [pri]; |
1995 | w_->pending = ++pendingcnt [pri]; |
856 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
1996 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
857 | pendings [pri][w_->pending - 1].w = w_; |
1997 | pendings [pri][w_->pending - 1].w = w_; |
858 | pendings [pri][w_->pending - 1].events = revents; |
1998 | pendings [pri][w_->pending - 1].events = revents; |
859 | } |
1999 | } |
|
|
2000 | |
|
|
2001 | pendingpri = NUMPRI - 1; |
860 | } |
2002 | } |
861 | |
2003 | |
862 | inline_speed void |
2004 | inline_speed void |
863 | feed_reverse (EV_P_ W w) |
2005 | feed_reverse (EV_P_ W w) |
864 | { |
2006 | { |
… | |
… | |
910 | if (expect_true (!anfd->reify)) |
2052 | if (expect_true (!anfd->reify)) |
911 | fd_event_nocheck (EV_A_ fd, revents); |
2053 | fd_event_nocheck (EV_A_ fd, revents); |
912 | } |
2054 | } |
913 | |
2055 | |
914 | void |
2056 | void |
915 | ev_feed_fd_event (EV_P_ int fd, int revents) |
2057 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW |
916 | { |
2058 | { |
917 | if (fd >= 0 && fd < anfdmax) |
2059 | if (fd >= 0 && fd < anfdmax) |
918 | fd_event_nocheck (EV_A_ fd, revents); |
2060 | fd_event_nocheck (EV_A_ fd, revents); |
919 | } |
2061 | } |
920 | |
2062 | |
… | |
… | |
923 | inline_size void |
2065 | inline_size void |
924 | fd_reify (EV_P) |
2066 | fd_reify (EV_P) |
925 | { |
2067 | { |
926 | int i; |
2068 | int i; |
927 | |
2069 | |
|
|
2070 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
2071 | for (i = 0; i < fdchangecnt; ++i) |
|
|
2072 | { |
|
|
2073 | int fd = fdchanges [i]; |
|
|
2074 | ANFD *anfd = anfds + fd; |
|
|
2075 | |
|
|
2076 | if (anfd->reify & EV__IOFDSET && anfd->head) |
|
|
2077 | { |
|
|
2078 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
2079 | |
|
|
2080 | if (handle != anfd->handle) |
|
|
2081 | { |
|
|
2082 | unsigned long arg; |
|
|
2083 | |
|
|
2084 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0)); |
|
|
2085 | |
|
|
2086 | /* handle changed, but fd didn't - we need to do it in two steps */ |
|
|
2087 | backend_modify (EV_A_ fd, anfd->events, 0); |
|
|
2088 | anfd->events = 0; |
|
|
2089 | anfd->handle = handle; |
|
|
2090 | } |
|
|
2091 | } |
|
|
2092 | } |
|
|
2093 | #endif |
|
|
2094 | |
928 | for (i = 0; i < fdchangecnt; ++i) |
2095 | for (i = 0; i < fdchangecnt; ++i) |
929 | { |
2096 | { |
930 | int fd = fdchanges [i]; |
2097 | int fd = fdchanges [i]; |
931 | ANFD *anfd = anfds + fd; |
2098 | ANFD *anfd = anfds + fd; |
932 | ev_io *w; |
2099 | ev_io *w; |
… | |
… | |
934 | unsigned char o_events = anfd->events; |
2101 | unsigned char o_events = anfd->events; |
935 | unsigned char o_reify = anfd->reify; |
2102 | unsigned char o_reify = anfd->reify; |
936 | |
2103 | |
937 | anfd->reify = 0; |
2104 | anfd->reify = 0; |
938 | |
2105 | |
939 | #if EV_SELECT_IS_WINSOCKET |
|
|
940 | if (o_reify & EV__IOFDSET) |
|
|
941 | { |
|
|
942 | unsigned long arg; |
|
|
943 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
944 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
|
|
945 | } |
|
|
946 | #endif |
|
|
947 | |
|
|
948 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
2106 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
949 | { |
2107 | { |
950 | anfd->events = 0; |
2108 | anfd->events = 0; |
951 | |
2109 | |
952 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
2110 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
977 | fdchanges [fdchangecnt - 1] = fd; |
2135 | fdchanges [fdchangecnt - 1] = fd; |
978 | } |
2136 | } |
979 | } |
2137 | } |
980 | |
2138 | |
981 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
2139 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
982 | inline_speed void |
2140 | inline_speed void ecb_cold |
983 | fd_kill (EV_P_ int fd) |
2141 | fd_kill (EV_P_ int fd) |
984 | { |
2142 | { |
985 | ev_io *w; |
2143 | ev_io *w; |
986 | |
2144 | |
987 | while ((w = (ev_io *)anfds [fd].head)) |
2145 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
990 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
2148 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
991 | } |
2149 | } |
992 | } |
2150 | } |
993 | |
2151 | |
994 | /* check whether the given fd is actually valid, for error recovery */ |
2152 | /* check whether the given fd is actually valid, for error recovery */ |
995 | inline_size int |
2153 | inline_size int ecb_cold |
996 | fd_valid (int fd) |
2154 | fd_valid (int fd) |
997 | { |
2155 | { |
998 | #ifdef _WIN32 |
2156 | #ifdef _WIN32 |
999 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
2157 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1000 | #else |
2158 | #else |
1001 | return fcntl (fd, F_GETFD) != -1; |
2159 | return fcntl (fd, F_GETFD) != -1; |
1002 | #endif |
2160 | #endif |
1003 | } |
2161 | } |
1004 | |
2162 | |
1005 | /* called on EBADF to verify fds */ |
2163 | /* called on EBADF to verify fds */ |
1006 | static void noinline |
2164 | static void noinline ecb_cold |
1007 | fd_ebadf (EV_P) |
2165 | fd_ebadf (EV_P) |
1008 | { |
2166 | { |
1009 | int fd; |
2167 | int fd; |
1010 | |
2168 | |
1011 | for (fd = 0; fd < anfdmax; ++fd) |
2169 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1013 | if (!fd_valid (fd) && errno == EBADF) |
2171 | if (!fd_valid (fd) && errno == EBADF) |
1014 | fd_kill (EV_A_ fd); |
2172 | fd_kill (EV_A_ fd); |
1015 | } |
2173 | } |
1016 | |
2174 | |
1017 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
2175 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1018 | static void noinline |
2176 | static void noinline ecb_cold |
1019 | fd_enomem (EV_P) |
2177 | fd_enomem (EV_P) |
1020 | { |
2178 | { |
1021 | int fd; |
2179 | int fd; |
1022 | |
2180 | |
1023 | for (fd = anfdmax; fd--; ) |
2181 | for (fd = anfdmax; fd--; ) |
… | |
… | |
1218 | |
2376 | |
1219 | /*****************************************************************************/ |
2377 | /*****************************************************************************/ |
1220 | |
2378 | |
1221 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
2379 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1222 | |
2380 | |
1223 | static void noinline |
2381 | static void noinline ecb_cold |
1224 | evpipe_init (EV_P) |
2382 | evpipe_init (EV_P) |
1225 | { |
2383 | { |
1226 | if (!ev_is_active (&pipe_w)) |
2384 | if (!ev_is_active (&pipe_w)) |
1227 | { |
2385 | { |
|
|
2386 | int fds [2]; |
|
|
2387 | |
1228 | # if EV_USE_EVENTFD |
2388 | # if EV_USE_EVENTFD |
|
|
2389 | fds [0] = -1; |
1229 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
2390 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1230 | if (evfd < 0 && errno == EINVAL) |
2391 | if (fds [1] < 0 && errno == EINVAL) |
1231 | evfd = eventfd (0, 0); |
2392 | fds [1] = eventfd (0, 0); |
1232 | |
2393 | |
1233 | if (evfd >= 0) |
2394 | if (fds [1] < 0) |
|
|
2395 | # endif |
1234 | { |
2396 | { |
|
|
2397 | while (pipe (fds)) |
|
|
2398 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
2399 | |
|
|
2400 | fd_intern (fds [0]); |
|
|
2401 | } |
|
|
2402 | |
1235 | evpipe [0] = -1; |
2403 | evpipe [0] = fds [0]; |
1236 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
2404 | |
1237 | ev_io_set (&pipe_w, evfd, EV_READ); |
2405 | if (evpipe [1] < 0) |
|
|
2406 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
2407 | else |
|
|
2408 | { |
|
|
2409 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
2410 | /* so that evpipe_write can always rely on its value. */ |
|
|
2411 | /* this branch does not do anything sensible on windows, */ |
|
|
2412 | /* so must not be executed on windows */ |
|
|
2413 | |
|
|
2414 | dup2 (fds [1], evpipe [1]); |
|
|
2415 | close (fds [1]); |
|
|
2416 | } |
|
|
2417 | |
|
|
2418 | fd_intern (evpipe [1]); |
|
|
2419 | |
|
|
2420 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
|
|
2421 | ev_io_start (EV_A_ &pipe_w); |
|
|
2422 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
2423 | } |
|
|
2424 | } |
|
|
2425 | |
|
|
2426 | inline_speed void |
|
|
2427 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
2428 | { |
|
|
2429 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
|
|
2430 | |
|
|
2431 | if (expect_true (*flag)) |
|
|
2432 | return; |
|
|
2433 | |
|
|
2434 | *flag = 1; |
|
|
2435 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
2436 | |
|
|
2437 | pipe_write_skipped = 1; |
|
|
2438 | |
|
|
2439 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
2440 | |
|
|
2441 | if (pipe_write_wanted) |
|
|
2442 | { |
|
|
2443 | int old_errno; |
|
|
2444 | |
|
|
2445 | pipe_write_skipped = 0; |
|
|
2446 | ECB_MEMORY_FENCE_RELEASE; |
|
|
2447 | |
|
|
2448 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
2449 | |
|
|
2450 | #if EV_USE_EVENTFD |
|
|
2451 | if (evpipe [0] < 0) |
|
|
2452 | { |
|
|
2453 | uint64_t counter = 1; |
|
|
2454 | write (evpipe [1], &counter, sizeof (uint64_t)); |
1238 | } |
2455 | } |
1239 | else |
2456 | else |
1240 | # endif |
2457 | #endif |
1241 | { |
2458 | { |
1242 | while (pipe (evpipe)) |
2459 | #ifdef _WIN32 |
1243 | ev_syserr ("(libev) error creating signal/async pipe"); |
2460 | WSABUF buf; |
1244 | |
2461 | DWORD sent; |
1245 | fd_intern (evpipe [0]); |
2462 | buf.buf = &buf; |
1246 | fd_intern (evpipe [1]); |
2463 | buf.len = 1; |
1247 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
2464 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
|
|
2465 | #else |
|
|
2466 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
2467 | #endif |
1248 | } |
2468 | } |
1249 | |
|
|
1250 | ev_io_start (EV_A_ &pipe_w); |
|
|
1251 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1252 | } |
|
|
1253 | } |
|
|
1254 | |
|
|
1255 | inline_size void |
|
|
1256 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1257 | { |
|
|
1258 | if (!*flag) |
|
|
1259 | { |
|
|
1260 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1261 | char dummy; |
|
|
1262 | |
|
|
1263 | *flag = 1; |
|
|
1264 | |
|
|
1265 | #if EV_USE_EVENTFD |
|
|
1266 | if (evfd >= 0) |
|
|
1267 | { |
|
|
1268 | uint64_t counter = 1; |
|
|
1269 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1270 | } |
|
|
1271 | else |
|
|
1272 | #endif |
|
|
1273 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1274 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1275 | /* so when you think this write should be a send instead, please find out */ |
|
|
1276 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1277 | /* tell me. thank you. */ |
|
|
1278 | write (evpipe [1], &dummy, 1); |
|
|
1279 | |
2469 | |
1280 | errno = old_errno; |
2470 | errno = old_errno; |
1281 | } |
2471 | } |
1282 | } |
2472 | } |
1283 | |
2473 | |
… | |
… | |
1286 | static void |
2476 | static void |
1287 | pipecb (EV_P_ ev_io *iow, int revents) |
2477 | pipecb (EV_P_ ev_io *iow, int revents) |
1288 | { |
2478 | { |
1289 | int i; |
2479 | int i; |
1290 | |
2480 | |
|
|
2481 | if (revents & EV_READ) |
|
|
2482 | { |
1291 | #if EV_USE_EVENTFD |
2483 | #if EV_USE_EVENTFD |
1292 | if (evfd >= 0) |
2484 | if (evpipe [0] < 0) |
1293 | { |
2485 | { |
1294 | uint64_t counter; |
2486 | uint64_t counter; |
1295 | read (evfd, &counter, sizeof (uint64_t)); |
2487 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1296 | } |
2488 | } |
1297 | else |
2489 | else |
1298 | #endif |
2490 | #endif |
1299 | { |
2491 | { |
1300 | char dummy; |
2492 | char dummy[4]; |
1301 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
2493 | #ifdef _WIN32 |
|
|
2494 | WSABUF buf; |
|
|
2495 | DWORD recvd; |
|
|
2496 | DWORD flags = 0; |
|
|
2497 | buf.buf = dummy; |
|
|
2498 | buf.len = sizeof (dummy); |
|
|
2499 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
|
|
2500 | #else |
1302 | read (evpipe [0], &dummy, 1); |
2501 | read (evpipe [0], &dummy, sizeof (dummy)); |
|
|
2502 | #endif |
|
|
2503 | } |
1303 | } |
2504 | } |
1304 | |
2505 | |
|
|
2506 | pipe_write_skipped = 0; |
|
|
2507 | |
|
|
2508 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
|
|
2509 | |
|
|
2510 | #if EV_SIGNAL_ENABLE |
1305 | if (sig_pending) |
2511 | if (sig_pending) |
1306 | { |
2512 | { |
1307 | sig_pending = 0; |
2513 | sig_pending = 0; |
|
|
2514 | |
|
|
2515 | ECB_MEMORY_FENCE; |
1308 | |
2516 | |
1309 | for (i = EV_NSIG - 1; i--; ) |
2517 | for (i = EV_NSIG - 1; i--; ) |
1310 | if (expect_false (signals [i].pending)) |
2518 | if (expect_false (signals [i].pending)) |
1311 | ev_feed_signal_event (EV_A_ i + 1); |
2519 | ev_feed_signal_event (EV_A_ i + 1); |
1312 | } |
2520 | } |
|
|
2521 | #endif |
1313 | |
2522 | |
1314 | #if EV_ASYNC_ENABLE |
2523 | #if EV_ASYNC_ENABLE |
1315 | if (async_pending) |
2524 | if (async_pending) |
1316 | { |
2525 | { |
1317 | async_pending = 0; |
2526 | async_pending = 0; |
|
|
2527 | |
|
|
2528 | ECB_MEMORY_FENCE; |
1318 | |
2529 | |
1319 | for (i = asynccnt; i--; ) |
2530 | for (i = asynccnt; i--; ) |
1320 | if (asyncs [i]->sent) |
2531 | if (asyncs [i]->sent) |
1321 | { |
2532 | { |
1322 | asyncs [i]->sent = 0; |
2533 | asyncs [i]->sent = 0; |
|
|
2534 | ECB_MEMORY_FENCE_RELEASE; |
1323 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2535 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1324 | } |
2536 | } |
1325 | } |
2537 | } |
1326 | #endif |
2538 | #endif |
1327 | } |
2539 | } |
1328 | |
2540 | |
1329 | /*****************************************************************************/ |
2541 | /*****************************************************************************/ |
1330 | |
2542 | |
|
|
2543 | void |
|
|
2544 | ev_feed_signal (int signum) EV_THROW |
|
|
2545 | { |
|
|
2546 | #if EV_MULTIPLICITY |
|
|
2547 | EV_P; |
|
|
2548 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
2549 | EV_A = signals [signum - 1].loop; |
|
|
2550 | |
|
|
2551 | if (!EV_A) |
|
|
2552 | return; |
|
|
2553 | #endif |
|
|
2554 | |
|
|
2555 | signals [signum - 1].pending = 1; |
|
|
2556 | evpipe_write (EV_A_ &sig_pending); |
|
|
2557 | } |
|
|
2558 | |
1331 | static void |
2559 | static void |
1332 | ev_sighandler (int signum) |
2560 | ev_sighandler (int signum) |
1333 | { |
2561 | { |
1334 | #if EV_MULTIPLICITY |
|
|
1335 | EV_P = signals [signum - 1].loop; |
|
|
1336 | #endif |
|
|
1337 | |
|
|
1338 | #ifdef _WIN32 |
2562 | #ifdef _WIN32 |
1339 | signal (signum, ev_sighandler); |
2563 | signal (signum, ev_sighandler); |
1340 | #endif |
2564 | #endif |
1341 | |
2565 | |
1342 | signals [signum - 1].pending = 1; |
2566 | ev_feed_signal (signum); |
1343 | evpipe_write (EV_A_ &sig_pending); |
|
|
1344 | } |
2567 | } |
1345 | |
2568 | |
1346 | void noinline |
2569 | void noinline |
1347 | ev_feed_signal_event (EV_P_ int signum) |
2570 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
1348 | { |
2571 | { |
1349 | WL w; |
2572 | WL w; |
1350 | |
2573 | |
1351 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
2574 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
1352 | return; |
2575 | return; |
1353 | |
2576 | |
1354 | --signum; |
2577 | --signum; |
1355 | |
2578 | |
1356 | #if EV_MULTIPLICITY |
2579 | #if EV_MULTIPLICITY |
… | |
… | |
1360 | if (expect_false (signals [signum].loop != EV_A)) |
2583 | if (expect_false (signals [signum].loop != EV_A)) |
1361 | return; |
2584 | return; |
1362 | #endif |
2585 | #endif |
1363 | |
2586 | |
1364 | signals [signum].pending = 0; |
2587 | signals [signum].pending = 0; |
|
|
2588 | ECB_MEMORY_FENCE_RELEASE; |
1365 | |
2589 | |
1366 | for (w = signals [signum].head; w; w = w->next) |
2590 | for (w = signals [signum].head; w; w = w->next) |
1367 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2591 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1368 | } |
2592 | } |
1369 | |
2593 | |
… | |
… | |
1448 | |
2672 | |
1449 | #endif |
2673 | #endif |
1450 | |
2674 | |
1451 | /*****************************************************************************/ |
2675 | /*****************************************************************************/ |
1452 | |
2676 | |
|
|
2677 | #if EV_USE_IOCP |
|
|
2678 | # include "ev_iocp.c" |
|
|
2679 | #endif |
1453 | #if EV_USE_PORT |
2680 | #if EV_USE_PORT |
1454 | # include "ev_port.c" |
2681 | # include "ev_port.c" |
1455 | #endif |
2682 | #endif |
1456 | #if EV_USE_KQUEUE |
2683 | #if EV_USE_KQUEUE |
1457 | # include "ev_kqueue.c" |
2684 | # include "ev_kqueue.c" |
… | |
… | |
1464 | #endif |
2691 | #endif |
1465 | #if EV_USE_SELECT |
2692 | #if EV_USE_SELECT |
1466 | # include "ev_select.c" |
2693 | # include "ev_select.c" |
1467 | #endif |
2694 | #endif |
1468 | |
2695 | |
1469 | int |
2696 | int ecb_cold |
1470 | ev_version_major (void) |
2697 | ev_version_major (void) EV_THROW |
1471 | { |
2698 | { |
1472 | return EV_VERSION_MAJOR; |
2699 | return EV_VERSION_MAJOR; |
1473 | } |
2700 | } |
1474 | |
2701 | |
1475 | int |
2702 | int ecb_cold |
1476 | ev_version_minor (void) |
2703 | ev_version_minor (void) EV_THROW |
1477 | { |
2704 | { |
1478 | return EV_VERSION_MINOR; |
2705 | return EV_VERSION_MINOR; |
1479 | } |
2706 | } |
1480 | |
2707 | |
1481 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2708 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1482 | int inline_size |
2709 | int inline_size ecb_cold |
1483 | enable_secure (void) |
2710 | enable_secure (void) |
1484 | { |
2711 | { |
1485 | #ifdef _WIN32 |
2712 | #ifdef _WIN32 |
1486 | return 0; |
2713 | return 0; |
1487 | #else |
2714 | #else |
1488 | return getuid () != geteuid () |
2715 | return getuid () != geteuid () |
1489 | || getgid () != getegid (); |
2716 | || getgid () != getegid (); |
1490 | #endif |
2717 | #endif |
1491 | } |
2718 | } |
1492 | |
2719 | |
1493 | unsigned int |
2720 | unsigned int ecb_cold |
1494 | ev_supported_backends (void) |
2721 | ev_supported_backends (void) EV_THROW |
1495 | { |
2722 | { |
1496 | unsigned int flags = 0; |
2723 | unsigned int flags = 0; |
1497 | |
2724 | |
1498 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2725 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
1499 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2726 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
… | |
… | |
1502 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2729 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
1503 | |
2730 | |
1504 | return flags; |
2731 | return flags; |
1505 | } |
2732 | } |
1506 | |
2733 | |
1507 | unsigned int |
2734 | unsigned int ecb_cold |
1508 | ev_recommended_backends (void) |
2735 | ev_recommended_backends (void) EV_THROW |
1509 | { |
2736 | { |
1510 | unsigned int flags = ev_supported_backends (); |
2737 | unsigned int flags = ev_supported_backends (); |
1511 | |
2738 | |
1512 | #ifndef __NetBSD__ |
2739 | #ifndef __NetBSD__ |
1513 | /* kqueue is borked on everything but netbsd apparently */ |
2740 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
1524 | #endif |
2751 | #endif |
1525 | |
2752 | |
1526 | return flags; |
2753 | return flags; |
1527 | } |
2754 | } |
1528 | |
2755 | |
|
|
2756 | unsigned int ecb_cold |
|
|
2757 | ev_embeddable_backends (void) EV_THROW |
|
|
2758 | { |
|
|
2759 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
|
|
2760 | |
|
|
2761 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
2762 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
|
|
2763 | flags &= ~EVBACKEND_EPOLL; |
|
|
2764 | |
|
|
2765 | return flags; |
|
|
2766 | } |
|
|
2767 | |
1529 | unsigned int |
2768 | unsigned int |
1530 | ev_embeddable_backends (void) |
|
|
1531 | { |
|
|
1532 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
|
|
1533 | |
|
|
1534 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1535 | /* please fix it and tell me how to detect the fix */ |
|
|
1536 | flags &= ~EVBACKEND_EPOLL; |
|
|
1537 | |
|
|
1538 | return flags; |
|
|
1539 | } |
|
|
1540 | |
|
|
1541 | unsigned int |
|
|
1542 | ev_backend (EV_P) |
2769 | ev_backend (EV_P) EV_THROW |
1543 | { |
2770 | { |
1544 | return backend; |
2771 | return backend; |
1545 | } |
2772 | } |
1546 | |
2773 | |
1547 | #if EV_FEATURE_API |
2774 | #if EV_FEATURE_API |
1548 | unsigned int |
2775 | unsigned int |
1549 | ev_iteration (EV_P) |
2776 | ev_iteration (EV_P) EV_THROW |
1550 | { |
2777 | { |
1551 | return loop_count; |
2778 | return loop_count; |
1552 | } |
2779 | } |
1553 | |
2780 | |
1554 | unsigned int |
2781 | unsigned int |
1555 | ev_depth (EV_P) |
2782 | ev_depth (EV_P) EV_THROW |
1556 | { |
2783 | { |
1557 | return loop_depth; |
2784 | return loop_depth; |
1558 | } |
2785 | } |
1559 | |
2786 | |
1560 | void |
2787 | void |
1561 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
2788 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1562 | { |
2789 | { |
1563 | io_blocktime = interval; |
2790 | io_blocktime = interval; |
1564 | } |
2791 | } |
1565 | |
2792 | |
1566 | void |
2793 | void |
1567 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
2794 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1568 | { |
2795 | { |
1569 | timeout_blocktime = interval; |
2796 | timeout_blocktime = interval; |
1570 | } |
2797 | } |
1571 | |
2798 | |
1572 | void |
2799 | void |
1573 | ev_set_userdata (EV_P_ void *data) |
2800 | ev_set_userdata (EV_P_ void *data) EV_THROW |
1574 | { |
2801 | { |
1575 | userdata = data; |
2802 | userdata = data; |
1576 | } |
2803 | } |
1577 | |
2804 | |
1578 | void * |
2805 | void * |
1579 | ev_userdata (EV_P) |
2806 | ev_userdata (EV_P) EV_THROW |
1580 | { |
2807 | { |
1581 | return userdata; |
2808 | return userdata; |
1582 | } |
2809 | } |
1583 | |
2810 | |
|
|
2811 | void |
1584 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
2812 | ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW |
1585 | { |
2813 | { |
1586 | invoke_cb = invoke_pending_cb; |
2814 | invoke_cb = invoke_pending_cb; |
1587 | } |
2815 | } |
1588 | |
2816 | |
|
|
2817 | void |
1589 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
2818 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW |
1590 | { |
2819 | { |
1591 | release_cb = release; |
2820 | release_cb = release; |
1592 | acquire_cb = acquire; |
2821 | acquire_cb = acquire; |
1593 | } |
2822 | } |
1594 | #endif |
2823 | #endif |
1595 | |
2824 | |
1596 | /* initialise a loop structure, must be zero-initialised */ |
2825 | /* initialise a loop structure, must be zero-initialised */ |
1597 | static void noinline |
2826 | static void noinline ecb_cold |
1598 | loop_init (EV_P_ unsigned int flags) |
2827 | loop_init (EV_P_ unsigned int flags) EV_THROW |
1599 | { |
2828 | { |
1600 | if (!backend) |
2829 | if (!backend) |
1601 | { |
2830 | { |
|
|
2831 | origflags = flags; |
|
|
2832 | |
1602 | #if EV_USE_REALTIME |
2833 | #if EV_USE_REALTIME |
1603 | if (!have_realtime) |
2834 | if (!have_realtime) |
1604 | { |
2835 | { |
1605 | struct timespec ts; |
2836 | struct timespec ts; |
1606 | |
2837 | |
… | |
… | |
1628 | if (!(flags & EVFLAG_NOENV) |
2859 | if (!(flags & EVFLAG_NOENV) |
1629 | && !enable_secure () |
2860 | && !enable_secure () |
1630 | && getenv ("LIBEV_FLAGS")) |
2861 | && getenv ("LIBEV_FLAGS")) |
1631 | flags = atoi (getenv ("LIBEV_FLAGS")); |
2862 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1632 | |
2863 | |
1633 | ev_rt_now = ev_time (); |
2864 | ev_rt_now = ev_time (); |
1634 | mn_now = get_clock (); |
2865 | mn_now = get_clock (); |
1635 | now_floor = mn_now; |
2866 | now_floor = mn_now; |
1636 | rtmn_diff = ev_rt_now - mn_now; |
2867 | rtmn_diff = ev_rt_now - mn_now; |
1637 | #if EV_FEATURE_API |
2868 | #if EV_FEATURE_API |
1638 | invoke_cb = ev_invoke_pending; |
2869 | invoke_cb = ev_invoke_pending; |
1639 | #endif |
2870 | #endif |
1640 | |
2871 | |
1641 | io_blocktime = 0.; |
2872 | io_blocktime = 0.; |
1642 | timeout_blocktime = 0.; |
2873 | timeout_blocktime = 0.; |
1643 | backend = 0; |
2874 | backend = 0; |
1644 | backend_fd = -1; |
2875 | backend_fd = -1; |
1645 | sig_pending = 0; |
2876 | sig_pending = 0; |
1646 | #if EV_ASYNC_ENABLE |
2877 | #if EV_ASYNC_ENABLE |
1647 | async_pending = 0; |
2878 | async_pending = 0; |
1648 | #endif |
2879 | #endif |
|
|
2880 | pipe_write_skipped = 0; |
|
|
2881 | pipe_write_wanted = 0; |
|
|
2882 | evpipe [0] = -1; |
|
|
2883 | evpipe [1] = -1; |
1649 | #if EV_USE_INOTIFY |
2884 | #if EV_USE_INOTIFY |
1650 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2885 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1651 | #endif |
2886 | #endif |
1652 | #if EV_USE_SIGNALFD |
2887 | #if EV_USE_SIGNALFD |
1653 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
2888 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1654 | #endif |
2889 | #endif |
1655 | |
2890 | |
1656 | if (!(flags & 0x0000ffffU)) |
2891 | if (!(flags & EVBACKEND_MASK)) |
1657 | flags |= ev_recommended_backends (); |
2892 | flags |= ev_recommended_backends (); |
1658 | |
2893 | |
|
|
2894 | #if EV_USE_IOCP |
|
|
2895 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
2896 | #endif |
1659 | #if EV_USE_PORT |
2897 | #if EV_USE_PORT |
1660 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
2898 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1661 | #endif |
2899 | #endif |
1662 | #if EV_USE_KQUEUE |
2900 | #if EV_USE_KQUEUE |
1663 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
2901 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
1680 | #endif |
2918 | #endif |
1681 | } |
2919 | } |
1682 | } |
2920 | } |
1683 | |
2921 | |
1684 | /* free up a loop structure */ |
2922 | /* free up a loop structure */ |
1685 | static void noinline |
2923 | void ecb_cold |
1686 | loop_destroy (EV_P) |
2924 | ev_loop_destroy (EV_P) |
1687 | { |
2925 | { |
1688 | int i; |
2926 | int i; |
|
|
2927 | |
|
|
2928 | #if EV_MULTIPLICITY |
|
|
2929 | /* mimic free (0) */ |
|
|
2930 | if (!EV_A) |
|
|
2931 | return; |
|
|
2932 | #endif |
|
|
2933 | |
|
|
2934 | #if EV_CLEANUP_ENABLE |
|
|
2935 | /* queue cleanup watchers (and execute them) */ |
|
|
2936 | if (expect_false (cleanupcnt)) |
|
|
2937 | { |
|
|
2938 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
2939 | EV_INVOKE_PENDING; |
|
|
2940 | } |
|
|
2941 | #endif |
|
|
2942 | |
|
|
2943 | #if EV_CHILD_ENABLE |
|
|
2944 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
|
|
2945 | { |
|
|
2946 | ev_ref (EV_A); /* child watcher */ |
|
|
2947 | ev_signal_stop (EV_A_ &childev); |
|
|
2948 | } |
|
|
2949 | #endif |
1689 | |
2950 | |
1690 | if (ev_is_active (&pipe_w)) |
2951 | if (ev_is_active (&pipe_w)) |
1691 | { |
2952 | { |
1692 | /*ev_ref (EV_A);*/ |
2953 | /*ev_ref (EV_A);*/ |
1693 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2954 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1694 | |
2955 | |
1695 | #if EV_USE_EVENTFD |
|
|
1696 | if (evfd >= 0) |
|
|
1697 | close (evfd); |
|
|
1698 | #endif |
|
|
1699 | |
|
|
1700 | if (evpipe [0] >= 0) |
|
|
1701 | { |
|
|
1702 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2956 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
1703 | EV_WIN32_CLOSE_FD (evpipe [1]); |
2957 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
1704 | } |
|
|
1705 | } |
2958 | } |
1706 | |
2959 | |
1707 | #if EV_USE_SIGNALFD |
2960 | #if EV_USE_SIGNALFD |
1708 | if (ev_is_active (&sigfd_w)) |
2961 | if (ev_is_active (&sigfd_w)) |
1709 | close (sigfd); |
2962 | close (sigfd); |
… | |
… | |
1715 | #endif |
2968 | #endif |
1716 | |
2969 | |
1717 | if (backend_fd >= 0) |
2970 | if (backend_fd >= 0) |
1718 | close (backend_fd); |
2971 | close (backend_fd); |
1719 | |
2972 | |
|
|
2973 | #if EV_USE_IOCP |
|
|
2974 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
2975 | #endif |
1720 | #if EV_USE_PORT |
2976 | #if EV_USE_PORT |
1721 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
2977 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1722 | #endif |
2978 | #endif |
1723 | #if EV_USE_KQUEUE |
2979 | #if EV_USE_KQUEUE |
1724 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
2980 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
… | |
… | |
1751 | array_free (periodic, EMPTY); |
3007 | array_free (periodic, EMPTY); |
1752 | #endif |
3008 | #endif |
1753 | #if EV_FORK_ENABLE |
3009 | #if EV_FORK_ENABLE |
1754 | array_free (fork, EMPTY); |
3010 | array_free (fork, EMPTY); |
1755 | #endif |
3011 | #endif |
|
|
3012 | #if EV_CLEANUP_ENABLE |
|
|
3013 | array_free (cleanup, EMPTY); |
|
|
3014 | #endif |
1756 | array_free (prepare, EMPTY); |
3015 | array_free (prepare, EMPTY); |
1757 | array_free (check, EMPTY); |
3016 | array_free (check, EMPTY); |
1758 | #if EV_ASYNC_ENABLE |
3017 | #if EV_ASYNC_ENABLE |
1759 | array_free (async, EMPTY); |
3018 | array_free (async, EMPTY); |
1760 | #endif |
3019 | #endif |
1761 | |
3020 | |
1762 | backend = 0; |
3021 | backend = 0; |
|
|
3022 | |
|
|
3023 | #if EV_MULTIPLICITY |
|
|
3024 | if (ev_is_default_loop (EV_A)) |
|
|
3025 | #endif |
|
|
3026 | ev_default_loop_ptr = 0; |
|
|
3027 | #if EV_MULTIPLICITY |
|
|
3028 | else |
|
|
3029 | ev_free (EV_A); |
|
|
3030 | #endif |
1763 | } |
3031 | } |
1764 | |
3032 | |
1765 | #if EV_USE_INOTIFY |
3033 | #if EV_USE_INOTIFY |
1766 | inline_size void infy_fork (EV_P); |
3034 | inline_size void infy_fork (EV_P); |
1767 | #endif |
3035 | #endif |
… | |
… | |
1780 | #endif |
3048 | #endif |
1781 | #if EV_USE_INOTIFY |
3049 | #if EV_USE_INOTIFY |
1782 | infy_fork (EV_A); |
3050 | infy_fork (EV_A); |
1783 | #endif |
3051 | #endif |
1784 | |
3052 | |
|
|
3053 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1785 | if (ev_is_active (&pipe_w)) |
3054 | if (ev_is_active (&pipe_w) && postfork != 2) |
1786 | { |
3055 | { |
1787 | /* this "locks" the handlers against writing to the pipe */ |
3056 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
1788 | /* while we modify the fd vars */ |
|
|
1789 | sig_pending = 1; |
|
|
1790 | #if EV_ASYNC_ENABLE |
|
|
1791 | async_pending = 1; |
|
|
1792 | #endif |
|
|
1793 | |
3057 | |
1794 | ev_ref (EV_A); |
3058 | ev_ref (EV_A); |
1795 | ev_io_stop (EV_A_ &pipe_w); |
3059 | ev_io_stop (EV_A_ &pipe_w); |
1796 | |
3060 | |
1797 | #if EV_USE_EVENTFD |
|
|
1798 | if (evfd >= 0) |
|
|
1799 | close (evfd); |
|
|
1800 | #endif |
|
|
1801 | |
|
|
1802 | if (evpipe [0] >= 0) |
3061 | if (evpipe [0] >= 0) |
1803 | { |
|
|
1804 | EV_WIN32_CLOSE_FD (evpipe [0]); |
3062 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1805 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
1806 | } |
|
|
1807 | |
3063 | |
1808 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
1809 | evpipe_init (EV_A); |
3064 | evpipe_init (EV_A); |
1810 | /* now iterate over everything, in case we missed something */ |
3065 | /* iterate over everything, in case we missed something before */ |
1811 | pipecb (EV_A_ &pipe_w, EV_READ); |
3066 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
1812 | #endif |
|
|
1813 | } |
3067 | } |
|
|
3068 | #endif |
1814 | |
3069 | |
1815 | postfork = 0; |
3070 | postfork = 0; |
1816 | } |
3071 | } |
1817 | |
3072 | |
1818 | #if EV_MULTIPLICITY |
3073 | #if EV_MULTIPLICITY |
1819 | |
3074 | |
1820 | struct ev_loop * |
3075 | struct ev_loop * ecb_cold |
1821 | ev_loop_new (unsigned int flags) |
3076 | ev_loop_new (unsigned int flags) EV_THROW |
1822 | { |
3077 | { |
1823 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
3078 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1824 | |
3079 | |
1825 | memset (EV_A, 0, sizeof (struct ev_loop)); |
3080 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1826 | loop_init (EV_A_ flags); |
3081 | loop_init (EV_A_ flags); |
1827 | |
3082 | |
1828 | if (ev_backend (EV_A)) |
3083 | if (ev_backend (EV_A)) |
1829 | return EV_A; |
3084 | return EV_A; |
1830 | |
3085 | |
|
|
3086 | ev_free (EV_A); |
1831 | return 0; |
3087 | return 0; |
1832 | } |
3088 | } |
1833 | |
3089 | |
1834 | void |
|
|
1835 | ev_loop_destroy (EV_P) |
|
|
1836 | { |
|
|
1837 | loop_destroy (EV_A); |
|
|
1838 | ev_free (loop); |
|
|
1839 | } |
|
|
1840 | |
|
|
1841 | void |
|
|
1842 | ev_loop_fork (EV_P) |
|
|
1843 | { |
|
|
1844 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1845 | } |
|
|
1846 | #endif /* multiplicity */ |
3090 | #endif /* multiplicity */ |
1847 | |
3091 | |
1848 | #if EV_VERIFY |
3092 | #if EV_VERIFY |
1849 | static void noinline |
3093 | static void noinline ecb_cold |
1850 | verify_watcher (EV_P_ W w) |
3094 | verify_watcher (EV_P_ W w) |
1851 | { |
3095 | { |
1852 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
3096 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1853 | |
3097 | |
1854 | if (w->pending) |
3098 | if (w->pending) |
1855 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
3099 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1856 | } |
3100 | } |
1857 | |
3101 | |
1858 | static void noinline |
3102 | static void noinline ecb_cold |
1859 | verify_heap (EV_P_ ANHE *heap, int N) |
3103 | verify_heap (EV_P_ ANHE *heap, int N) |
1860 | { |
3104 | { |
1861 | int i; |
3105 | int i; |
1862 | |
3106 | |
1863 | for (i = HEAP0; i < N + HEAP0; ++i) |
3107 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
1868 | |
3112 | |
1869 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
3113 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1870 | } |
3114 | } |
1871 | } |
3115 | } |
1872 | |
3116 | |
1873 | static void noinline |
3117 | static void noinline ecb_cold |
1874 | array_verify (EV_P_ W *ws, int cnt) |
3118 | array_verify (EV_P_ W *ws, int cnt) |
1875 | { |
3119 | { |
1876 | while (cnt--) |
3120 | while (cnt--) |
1877 | { |
3121 | { |
1878 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
3122 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
… | |
… | |
1880 | } |
3124 | } |
1881 | } |
3125 | } |
1882 | #endif |
3126 | #endif |
1883 | |
3127 | |
1884 | #if EV_FEATURE_API |
3128 | #if EV_FEATURE_API |
1885 | void |
3129 | void ecb_cold |
1886 | ev_verify (EV_P) |
3130 | ev_verify (EV_P) EV_THROW |
1887 | { |
3131 | { |
1888 | #if EV_VERIFY |
3132 | #if EV_VERIFY |
1889 | int i; |
3133 | int i; |
1890 | WL w; |
3134 | WL w, w2; |
1891 | |
3135 | |
1892 | assert (activecnt >= -1); |
3136 | assert (activecnt >= -1); |
1893 | |
3137 | |
1894 | assert (fdchangemax >= fdchangecnt); |
3138 | assert (fdchangemax >= fdchangecnt); |
1895 | for (i = 0; i < fdchangecnt; ++i) |
3139 | for (i = 0; i < fdchangecnt; ++i) |
1896 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
3140 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
1897 | |
3141 | |
1898 | assert (anfdmax >= 0); |
3142 | assert (anfdmax >= 0); |
1899 | for (i = 0; i < anfdmax; ++i) |
3143 | for (i = 0; i < anfdmax; ++i) |
|
|
3144 | { |
|
|
3145 | int j = 0; |
|
|
3146 | |
1900 | for (w = anfds [i].head; w; w = w->next) |
3147 | for (w = w2 = anfds [i].head; w; w = w->next) |
1901 | { |
3148 | { |
1902 | verify_watcher (EV_A_ (W)w); |
3149 | verify_watcher (EV_A_ (W)w); |
|
|
3150 | |
|
|
3151 | if (j++ & 1) |
|
|
3152 | { |
|
|
3153 | assert (("libev: io watcher list contains a loop", w != w2)); |
|
|
3154 | w2 = w2->next; |
|
|
3155 | } |
|
|
3156 | |
1903 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
3157 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
1904 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
3158 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1905 | } |
3159 | } |
|
|
3160 | } |
1906 | |
3161 | |
1907 | assert (timermax >= timercnt); |
3162 | assert (timermax >= timercnt); |
1908 | verify_heap (EV_A_ timers, timercnt); |
3163 | verify_heap (EV_A_ timers, timercnt); |
1909 | |
3164 | |
1910 | #if EV_PERIODIC_ENABLE |
3165 | #if EV_PERIODIC_ENABLE |
… | |
… | |
1925 | #if EV_FORK_ENABLE |
3180 | #if EV_FORK_ENABLE |
1926 | assert (forkmax >= forkcnt); |
3181 | assert (forkmax >= forkcnt); |
1927 | array_verify (EV_A_ (W *)forks, forkcnt); |
3182 | array_verify (EV_A_ (W *)forks, forkcnt); |
1928 | #endif |
3183 | #endif |
1929 | |
3184 | |
|
|
3185 | #if EV_CLEANUP_ENABLE |
|
|
3186 | assert (cleanupmax >= cleanupcnt); |
|
|
3187 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
3188 | #endif |
|
|
3189 | |
1930 | #if EV_ASYNC_ENABLE |
3190 | #if EV_ASYNC_ENABLE |
1931 | assert (asyncmax >= asynccnt); |
3191 | assert (asyncmax >= asynccnt); |
1932 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
3192 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1933 | #endif |
3193 | #endif |
1934 | |
3194 | |
… | |
… | |
1951 | #endif |
3211 | #endif |
1952 | } |
3212 | } |
1953 | #endif |
3213 | #endif |
1954 | |
3214 | |
1955 | #if EV_MULTIPLICITY |
3215 | #if EV_MULTIPLICITY |
1956 | struct ev_loop * |
3216 | struct ev_loop * ecb_cold |
1957 | ev_default_loop_init (unsigned int flags) |
|
|
1958 | #else |
3217 | #else |
1959 | int |
3218 | int |
|
|
3219 | #endif |
1960 | ev_default_loop (unsigned int flags) |
3220 | ev_default_loop (unsigned int flags) EV_THROW |
1961 | #endif |
|
|
1962 | { |
3221 | { |
1963 | if (!ev_default_loop_ptr) |
3222 | if (!ev_default_loop_ptr) |
1964 | { |
3223 | { |
1965 | #if EV_MULTIPLICITY |
3224 | #if EV_MULTIPLICITY |
1966 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
3225 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
1985 | |
3244 | |
1986 | return ev_default_loop_ptr; |
3245 | return ev_default_loop_ptr; |
1987 | } |
3246 | } |
1988 | |
3247 | |
1989 | void |
3248 | void |
1990 | ev_default_destroy (void) |
3249 | ev_loop_fork (EV_P) EV_THROW |
1991 | { |
3250 | { |
1992 | #if EV_MULTIPLICITY |
3251 | postfork = 1; |
1993 | EV_P = ev_default_loop_ptr; |
|
|
1994 | #endif |
|
|
1995 | |
|
|
1996 | ev_default_loop_ptr = 0; |
|
|
1997 | |
|
|
1998 | #if EV_CHILD_ENABLE |
|
|
1999 | ev_ref (EV_A); /* child watcher */ |
|
|
2000 | ev_signal_stop (EV_A_ &childev); |
|
|
2001 | #endif |
|
|
2002 | |
|
|
2003 | loop_destroy (EV_A); |
|
|
2004 | } |
|
|
2005 | |
|
|
2006 | void |
|
|
2007 | ev_default_fork (void) |
|
|
2008 | { |
|
|
2009 | #if EV_MULTIPLICITY |
|
|
2010 | EV_P = ev_default_loop_ptr; |
|
|
2011 | #endif |
|
|
2012 | |
|
|
2013 | postfork = 1; /* must be in line with ev_loop_fork */ |
|
|
2014 | } |
3252 | } |
2015 | |
3253 | |
2016 | /*****************************************************************************/ |
3254 | /*****************************************************************************/ |
2017 | |
3255 | |
2018 | void |
3256 | void |
… | |
… | |
2020 | { |
3258 | { |
2021 | EV_CB_INVOKE ((W)w, revents); |
3259 | EV_CB_INVOKE ((W)w, revents); |
2022 | } |
3260 | } |
2023 | |
3261 | |
2024 | unsigned int |
3262 | unsigned int |
2025 | ev_pending_count (EV_P) |
3263 | ev_pending_count (EV_P) EV_THROW |
2026 | { |
3264 | { |
2027 | int pri; |
3265 | int pri; |
2028 | unsigned int count = 0; |
3266 | unsigned int count = 0; |
2029 | |
3267 | |
2030 | for (pri = NUMPRI; pri--; ) |
3268 | for (pri = NUMPRI; pri--; ) |
… | |
… | |
2034 | } |
3272 | } |
2035 | |
3273 | |
2036 | void noinline |
3274 | void noinline |
2037 | ev_invoke_pending (EV_P) |
3275 | ev_invoke_pending (EV_P) |
2038 | { |
3276 | { |
2039 | int pri; |
3277 | pendingpri = NUMPRI; |
2040 | |
3278 | |
2041 | for (pri = NUMPRI; pri--; ) |
3279 | while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ |
|
|
3280 | { |
|
|
3281 | --pendingpri; |
|
|
3282 | |
2042 | while (pendingcnt [pri]) |
3283 | while (pendingcnt [pendingpri]) |
2043 | { |
3284 | { |
2044 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
3285 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2045 | |
3286 | |
2046 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
2047 | /* ^ this is no longer true, as pending_w could be here */ |
|
|
2048 | |
|
|
2049 | p->w->pending = 0; |
3287 | p->w->pending = 0; |
2050 | EV_CB_INVOKE (p->w, p->events); |
3288 | EV_CB_INVOKE (p->w, p->events); |
2051 | EV_FREQUENT_CHECK; |
3289 | EV_FREQUENT_CHECK; |
2052 | } |
3290 | } |
|
|
3291 | } |
2053 | } |
3292 | } |
2054 | |
3293 | |
2055 | #if EV_IDLE_ENABLE |
3294 | #if EV_IDLE_ENABLE |
2056 | /* make idle watchers pending. this handles the "call-idle */ |
3295 | /* make idle watchers pending. this handles the "call-idle */ |
2057 | /* only when higher priorities are idle" logic */ |
3296 | /* only when higher priorities are idle" logic */ |
… | |
… | |
2114 | feed_reverse_done (EV_A_ EV_TIMER); |
3353 | feed_reverse_done (EV_A_ EV_TIMER); |
2115 | } |
3354 | } |
2116 | } |
3355 | } |
2117 | |
3356 | |
2118 | #if EV_PERIODIC_ENABLE |
3357 | #if EV_PERIODIC_ENABLE |
|
|
3358 | |
|
|
3359 | static void noinline |
|
|
3360 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
3361 | { |
|
|
3362 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
|
|
3363 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
|
|
3364 | |
|
|
3365 | /* the above almost always errs on the low side */ |
|
|
3366 | while (at <= ev_rt_now) |
|
|
3367 | { |
|
|
3368 | ev_tstamp nat = at + w->interval; |
|
|
3369 | |
|
|
3370 | /* when resolution fails us, we use ev_rt_now */ |
|
|
3371 | if (expect_false (nat == at)) |
|
|
3372 | { |
|
|
3373 | at = ev_rt_now; |
|
|
3374 | break; |
|
|
3375 | } |
|
|
3376 | |
|
|
3377 | at = nat; |
|
|
3378 | } |
|
|
3379 | |
|
|
3380 | ev_at (w) = at; |
|
|
3381 | } |
|
|
3382 | |
2119 | /* make periodics pending */ |
3383 | /* make periodics pending */ |
2120 | inline_size void |
3384 | inline_size void |
2121 | periodics_reify (EV_P) |
3385 | periodics_reify (EV_P) |
2122 | { |
3386 | { |
2123 | EV_FREQUENT_CHECK; |
3387 | EV_FREQUENT_CHECK; |
2124 | |
3388 | |
2125 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
3389 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2126 | { |
3390 | { |
2127 | int feed_count = 0; |
|
|
2128 | |
|
|
2129 | do |
3391 | do |
2130 | { |
3392 | { |
2131 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
3393 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2132 | |
3394 | |
2133 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
3395 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
… | |
… | |
2142 | ANHE_at_cache (periodics [HEAP0]); |
3404 | ANHE_at_cache (periodics [HEAP0]); |
2143 | downheap (periodics, periodiccnt, HEAP0); |
3405 | downheap (periodics, periodiccnt, HEAP0); |
2144 | } |
3406 | } |
2145 | else if (w->interval) |
3407 | else if (w->interval) |
2146 | { |
3408 | { |
2147 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
3409 | periodic_recalc (EV_A_ w); |
2148 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2149 | /* this might happen because of floating point inexactness */ |
|
|
2150 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2151 | { |
|
|
2152 | ev_at (w) += w->interval; |
|
|
2153 | |
|
|
2154 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2155 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2156 | /* has effectively asked to get triggered more often than possible */ |
|
|
2157 | if (ev_at (w) < ev_rt_now) |
|
|
2158 | ev_at (w) = ev_rt_now; |
|
|
2159 | } |
|
|
2160 | |
|
|
2161 | ANHE_at_cache (periodics [HEAP0]); |
3410 | ANHE_at_cache (periodics [HEAP0]); |
2162 | downheap (periodics, periodiccnt, HEAP0); |
3411 | downheap (periodics, periodiccnt, HEAP0); |
2163 | } |
3412 | } |
2164 | else |
3413 | else |
2165 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
3414 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
… | |
… | |
2173 | } |
3422 | } |
2174 | } |
3423 | } |
2175 | |
3424 | |
2176 | /* simply recalculate all periodics */ |
3425 | /* simply recalculate all periodics */ |
2177 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
3426 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2178 | static void noinline |
3427 | static void noinline ecb_cold |
2179 | periodics_reschedule (EV_P) |
3428 | periodics_reschedule (EV_P) |
2180 | { |
3429 | { |
2181 | int i; |
3430 | int i; |
2182 | |
3431 | |
2183 | /* adjust periodics after time jump */ |
3432 | /* adjust periodics after time jump */ |
… | |
… | |
2186 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
3435 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
2187 | |
3436 | |
2188 | if (w->reschedule_cb) |
3437 | if (w->reschedule_cb) |
2189 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3438 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2190 | else if (w->interval) |
3439 | else if (w->interval) |
2191 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
3440 | periodic_recalc (EV_A_ w); |
2192 | |
3441 | |
2193 | ANHE_at_cache (periodics [i]); |
3442 | ANHE_at_cache (periodics [i]); |
2194 | } |
3443 | } |
2195 | |
3444 | |
2196 | reheap (periodics, periodiccnt); |
3445 | reheap (periodics, periodiccnt); |
2197 | } |
3446 | } |
2198 | #endif |
3447 | #endif |
2199 | |
3448 | |
2200 | /* adjust all timers by a given offset */ |
3449 | /* adjust all timers by a given offset */ |
2201 | static void noinline |
3450 | static void noinline ecb_cold |
2202 | timers_reschedule (EV_P_ ev_tstamp adjust) |
3451 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2203 | { |
3452 | { |
2204 | int i; |
3453 | int i; |
2205 | |
3454 | |
2206 | for (i = 0; i < timercnt; ++i) |
3455 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
2243 | * doesn't hurt either as we only do this on time-jumps or |
3492 | * doesn't hurt either as we only do this on time-jumps or |
2244 | * in the unlikely event of having been preempted here. |
3493 | * in the unlikely event of having been preempted here. |
2245 | */ |
3494 | */ |
2246 | for (i = 4; --i; ) |
3495 | for (i = 4; --i; ) |
2247 | { |
3496 | { |
|
|
3497 | ev_tstamp diff; |
2248 | rtmn_diff = ev_rt_now - mn_now; |
3498 | rtmn_diff = ev_rt_now - mn_now; |
2249 | |
3499 | |
|
|
3500 | diff = odiff - rtmn_diff; |
|
|
3501 | |
2250 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
3502 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
2251 | return; /* all is well */ |
3503 | return; /* all is well */ |
2252 | |
3504 | |
2253 | ev_rt_now = ev_time (); |
3505 | ev_rt_now = ev_time (); |
2254 | mn_now = get_clock (); |
3506 | mn_now = get_clock (); |
2255 | now_floor = mn_now; |
3507 | now_floor = mn_now; |
… | |
… | |
2277 | |
3529 | |
2278 | mn_now = ev_rt_now; |
3530 | mn_now = ev_rt_now; |
2279 | } |
3531 | } |
2280 | } |
3532 | } |
2281 | |
3533 | |
2282 | void |
3534 | int |
2283 | ev_run (EV_P_ int flags) |
3535 | ev_run (EV_P_ int flags) |
2284 | { |
3536 | { |
2285 | #if EV_FEATURE_API |
3537 | #if EV_FEATURE_API |
2286 | ++loop_depth; |
3538 | ++loop_depth; |
2287 | #endif |
3539 | #endif |
… | |
… | |
2345 | ev_tstamp prev_mn_now = mn_now; |
3597 | ev_tstamp prev_mn_now = mn_now; |
2346 | |
3598 | |
2347 | /* update time to cancel out callback processing overhead */ |
3599 | /* update time to cancel out callback processing overhead */ |
2348 | time_update (EV_A_ 1e100); |
3600 | time_update (EV_A_ 1e100); |
2349 | |
3601 | |
|
|
3602 | /* from now on, we want a pipe-wake-up */ |
|
|
3603 | pipe_write_wanted = 1; |
|
|
3604 | |
|
|
3605 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
3606 | |
2350 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt))) |
3607 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
2351 | { |
3608 | { |
2352 | waittime = MAX_BLOCKTIME; |
3609 | waittime = MAX_BLOCKTIME; |
2353 | |
3610 | |
2354 | if (timercnt) |
3611 | if (timercnt) |
2355 | { |
3612 | { |
2356 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
3613 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
2357 | if (waittime > to) waittime = to; |
3614 | if (waittime > to) waittime = to; |
2358 | } |
3615 | } |
2359 | |
3616 | |
2360 | #if EV_PERIODIC_ENABLE |
3617 | #if EV_PERIODIC_ENABLE |
2361 | if (periodiccnt) |
3618 | if (periodiccnt) |
2362 | { |
3619 | { |
2363 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
3620 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now; |
2364 | if (waittime > to) waittime = to; |
3621 | if (waittime > to) waittime = to; |
2365 | } |
3622 | } |
2366 | #endif |
3623 | #endif |
2367 | |
3624 | |
2368 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3625 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2369 | if (expect_false (waittime < timeout_blocktime)) |
3626 | if (expect_false (waittime < timeout_blocktime)) |
2370 | waittime = timeout_blocktime; |
3627 | waittime = timeout_blocktime; |
|
|
3628 | |
|
|
3629 | /* at this point, we NEED to wait, so we have to ensure */ |
|
|
3630 | /* to pass a minimum nonzero value to the backend */ |
|
|
3631 | if (expect_false (waittime < backend_mintime)) |
|
|
3632 | waittime = backend_mintime; |
2371 | |
3633 | |
2372 | /* extra check because io_blocktime is commonly 0 */ |
3634 | /* extra check because io_blocktime is commonly 0 */ |
2373 | if (expect_false (io_blocktime)) |
3635 | if (expect_false (io_blocktime)) |
2374 | { |
3636 | { |
2375 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
3637 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
2376 | |
3638 | |
2377 | if (sleeptime > waittime - backend_fudge) |
3639 | if (sleeptime > waittime - backend_mintime) |
2378 | sleeptime = waittime - backend_fudge; |
3640 | sleeptime = waittime - backend_mintime; |
2379 | |
3641 | |
2380 | if (expect_true (sleeptime > 0.)) |
3642 | if (expect_true (sleeptime > 0.)) |
2381 | { |
3643 | { |
2382 | ev_sleep (sleeptime); |
3644 | ev_sleep (sleeptime); |
2383 | waittime -= sleeptime; |
3645 | waittime -= sleeptime; |
… | |
… | |
2390 | #endif |
3652 | #endif |
2391 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
3653 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2392 | backend_poll (EV_A_ waittime); |
3654 | backend_poll (EV_A_ waittime); |
2393 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
3655 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
2394 | |
3656 | |
|
|
3657 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
|
|
3658 | |
|
|
3659 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
3660 | if (pipe_write_skipped) |
|
|
3661 | { |
|
|
3662 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
3663 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
3664 | } |
|
|
3665 | |
|
|
3666 | |
2395 | /* update ev_rt_now, do magic */ |
3667 | /* update ev_rt_now, do magic */ |
2396 | time_update (EV_A_ waittime + sleeptime); |
3668 | time_update (EV_A_ waittime + sleeptime); |
2397 | } |
3669 | } |
2398 | |
3670 | |
2399 | /* queue pending timers and reschedule them */ |
3671 | /* queue pending timers and reschedule them */ |
… | |
… | |
2425 | loop_done = EVBREAK_CANCEL; |
3697 | loop_done = EVBREAK_CANCEL; |
2426 | |
3698 | |
2427 | #if EV_FEATURE_API |
3699 | #if EV_FEATURE_API |
2428 | --loop_depth; |
3700 | --loop_depth; |
2429 | #endif |
3701 | #endif |
|
|
3702 | |
|
|
3703 | return activecnt; |
2430 | } |
3704 | } |
2431 | |
3705 | |
2432 | void |
3706 | void |
2433 | ev_break (EV_P_ int how) |
3707 | ev_break (EV_P_ int how) EV_THROW |
2434 | { |
3708 | { |
2435 | loop_done = how; |
3709 | loop_done = how; |
2436 | } |
3710 | } |
2437 | |
3711 | |
2438 | void |
3712 | void |
2439 | ev_ref (EV_P) |
3713 | ev_ref (EV_P) EV_THROW |
2440 | { |
3714 | { |
2441 | ++activecnt; |
3715 | ++activecnt; |
2442 | } |
3716 | } |
2443 | |
3717 | |
2444 | void |
3718 | void |
2445 | ev_unref (EV_P) |
3719 | ev_unref (EV_P) EV_THROW |
2446 | { |
3720 | { |
2447 | --activecnt; |
3721 | --activecnt; |
2448 | } |
3722 | } |
2449 | |
3723 | |
2450 | void |
3724 | void |
2451 | ev_now_update (EV_P) |
3725 | ev_now_update (EV_P) EV_THROW |
2452 | { |
3726 | { |
2453 | time_update (EV_A_ 1e100); |
3727 | time_update (EV_A_ 1e100); |
2454 | } |
3728 | } |
2455 | |
3729 | |
2456 | void |
3730 | void |
2457 | ev_suspend (EV_P) |
3731 | ev_suspend (EV_P) EV_THROW |
2458 | { |
3732 | { |
2459 | ev_now_update (EV_A); |
3733 | ev_now_update (EV_A); |
2460 | } |
3734 | } |
2461 | |
3735 | |
2462 | void |
3736 | void |
2463 | ev_resume (EV_P) |
3737 | ev_resume (EV_P) EV_THROW |
2464 | { |
3738 | { |
2465 | ev_tstamp mn_prev = mn_now; |
3739 | ev_tstamp mn_prev = mn_now; |
2466 | |
3740 | |
2467 | ev_now_update (EV_A); |
3741 | ev_now_update (EV_A); |
2468 | timers_reschedule (EV_A_ mn_now - mn_prev); |
3742 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
2507 | w->pending = 0; |
3781 | w->pending = 0; |
2508 | } |
3782 | } |
2509 | } |
3783 | } |
2510 | |
3784 | |
2511 | int |
3785 | int |
2512 | ev_clear_pending (EV_P_ void *w) |
3786 | ev_clear_pending (EV_P_ void *w) EV_THROW |
2513 | { |
3787 | { |
2514 | W w_ = (W)w; |
3788 | W w_ = (W)w; |
2515 | int pending = w_->pending; |
3789 | int pending = w_->pending; |
2516 | |
3790 | |
2517 | if (expect_true (pending)) |
3791 | if (expect_true (pending)) |
… | |
… | |
2550 | } |
3824 | } |
2551 | |
3825 | |
2552 | /*****************************************************************************/ |
3826 | /*****************************************************************************/ |
2553 | |
3827 | |
2554 | void noinline |
3828 | void noinline |
2555 | ev_io_start (EV_P_ ev_io *w) |
3829 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
2556 | { |
3830 | { |
2557 | int fd = w->fd; |
3831 | int fd = w->fd; |
2558 | |
3832 | |
2559 | if (expect_false (ev_is_active (w))) |
3833 | if (expect_false (ev_is_active (w))) |
2560 | return; |
3834 | return; |
… | |
… | |
2566 | |
3840 | |
2567 | ev_start (EV_A_ (W)w, 1); |
3841 | ev_start (EV_A_ (W)w, 1); |
2568 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
3842 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2569 | wlist_add (&anfds[fd].head, (WL)w); |
3843 | wlist_add (&anfds[fd].head, (WL)w); |
2570 | |
3844 | |
|
|
3845 | /* common bug, apparently */ |
|
|
3846 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
|
|
3847 | |
2571 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
3848 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2572 | w->events &= ~EV__IOFDSET; |
3849 | w->events &= ~EV__IOFDSET; |
2573 | |
3850 | |
2574 | EV_FREQUENT_CHECK; |
3851 | EV_FREQUENT_CHECK; |
2575 | } |
3852 | } |
2576 | |
3853 | |
2577 | void noinline |
3854 | void noinline |
2578 | ev_io_stop (EV_P_ ev_io *w) |
3855 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
2579 | { |
3856 | { |
2580 | clear_pending (EV_A_ (W)w); |
3857 | clear_pending (EV_A_ (W)w); |
2581 | if (expect_false (!ev_is_active (w))) |
3858 | if (expect_false (!ev_is_active (w))) |
2582 | return; |
3859 | return; |
2583 | |
3860 | |
… | |
… | |
2592 | |
3869 | |
2593 | EV_FREQUENT_CHECK; |
3870 | EV_FREQUENT_CHECK; |
2594 | } |
3871 | } |
2595 | |
3872 | |
2596 | void noinline |
3873 | void noinline |
2597 | ev_timer_start (EV_P_ ev_timer *w) |
3874 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
2598 | { |
3875 | { |
2599 | if (expect_false (ev_is_active (w))) |
3876 | if (expect_false (ev_is_active (w))) |
2600 | return; |
3877 | return; |
2601 | |
3878 | |
2602 | ev_at (w) += mn_now; |
3879 | ev_at (w) += mn_now; |
… | |
… | |
2616 | |
3893 | |
2617 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3894 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2618 | } |
3895 | } |
2619 | |
3896 | |
2620 | void noinline |
3897 | void noinline |
2621 | ev_timer_stop (EV_P_ ev_timer *w) |
3898 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
2622 | { |
3899 | { |
2623 | clear_pending (EV_A_ (W)w); |
3900 | clear_pending (EV_A_ (W)w); |
2624 | if (expect_false (!ev_is_active (w))) |
3901 | if (expect_false (!ev_is_active (w))) |
2625 | return; |
3902 | return; |
2626 | |
3903 | |
… | |
… | |
2646 | |
3923 | |
2647 | EV_FREQUENT_CHECK; |
3924 | EV_FREQUENT_CHECK; |
2648 | } |
3925 | } |
2649 | |
3926 | |
2650 | void noinline |
3927 | void noinline |
2651 | ev_timer_again (EV_P_ ev_timer *w) |
3928 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
2652 | { |
3929 | { |
2653 | EV_FREQUENT_CHECK; |
3930 | EV_FREQUENT_CHECK; |
|
|
3931 | |
|
|
3932 | clear_pending (EV_A_ (W)w); |
2654 | |
3933 | |
2655 | if (ev_is_active (w)) |
3934 | if (ev_is_active (w)) |
2656 | { |
3935 | { |
2657 | if (w->repeat) |
3936 | if (w->repeat) |
2658 | { |
3937 | { |
… | |
… | |
2671 | |
3950 | |
2672 | EV_FREQUENT_CHECK; |
3951 | EV_FREQUENT_CHECK; |
2673 | } |
3952 | } |
2674 | |
3953 | |
2675 | ev_tstamp |
3954 | ev_tstamp |
2676 | ev_timer_remaining (EV_P_ ev_timer *w) |
3955 | ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW |
2677 | { |
3956 | { |
2678 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3957 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
2679 | } |
3958 | } |
2680 | |
3959 | |
2681 | #if EV_PERIODIC_ENABLE |
3960 | #if EV_PERIODIC_ENABLE |
2682 | void noinline |
3961 | void noinline |
2683 | ev_periodic_start (EV_P_ ev_periodic *w) |
3962 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
2684 | { |
3963 | { |
2685 | if (expect_false (ev_is_active (w))) |
3964 | if (expect_false (ev_is_active (w))) |
2686 | return; |
3965 | return; |
2687 | |
3966 | |
2688 | if (w->reschedule_cb) |
3967 | if (w->reschedule_cb) |
2689 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3968 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2690 | else if (w->interval) |
3969 | else if (w->interval) |
2691 | { |
3970 | { |
2692 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
3971 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2693 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
3972 | periodic_recalc (EV_A_ w); |
2694 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2695 | } |
3973 | } |
2696 | else |
3974 | else |
2697 | ev_at (w) = w->offset; |
3975 | ev_at (w) = w->offset; |
2698 | |
3976 | |
2699 | EV_FREQUENT_CHECK; |
3977 | EV_FREQUENT_CHECK; |
… | |
… | |
2709 | |
3987 | |
2710 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3988 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2711 | } |
3989 | } |
2712 | |
3990 | |
2713 | void noinline |
3991 | void noinline |
2714 | ev_periodic_stop (EV_P_ ev_periodic *w) |
3992 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
2715 | { |
3993 | { |
2716 | clear_pending (EV_A_ (W)w); |
3994 | clear_pending (EV_A_ (W)w); |
2717 | if (expect_false (!ev_is_active (w))) |
3995 | if (expect_false (!ev_is_active (w))) |
2718 | return; |
3996 | return; |
2719 | |
3997 | |
… | |
… | |
2737 | |
4015 | |
2738 | EV_FREQUENT_CHECK; |
4016 | EV_FREQUENT_CHECK; |
2739 | } |
4017 | } |
2740 | |
4018 | |
2741 | void noinline |
4019 | void noinline |
2742 | ev_periodic_again (EV_P_ ev_periodic *w) |
4020 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
2743 | { |
4021 | { |
2744 | /* TODO: use adjustheap and recalculation */ |
4022 | /* TODO: use adjustheap and recalculation */ |
2745 | ev_periodic_stop (EV_A_ w); |
4023 | ev_periodic_stop (EV_A_ w); |
2746 | ev_periodic_start (EV_A_ w); |
4024 | ev_periodic_start (EV_A_ w); |
2747 | } |
4025 | } |
… | |
… | |
2752 | #endif |
4030 | #endif |
2753 | |
4031 | |
2754 | #if EV_SIGNAL_ENABLE |
4032 | #if EV_SIGNAL_ENABLE |
2755 | |
4033 | |
2756 | void noinline |
4034 | void noinline |
2757 | ev_signal_start (EV_P_ ev_signal *w) |
4035 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
2758 | { |
4036 | { |
2759 | if (expect_false (ev_is_active (w))) |
4037 | if (expect_false (ev_is_active (w))) |
2760 | return; |
4038 | return; |
2761 | |
4039 | |
2762 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
4040 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
… | |
… | |
2764 | #if EV_MULTIPLICITY |
4042 | #if EV_MULTIPLICITY |
2765 | assert (("libev: a signal must not be attached to two different loops", |
4043 | assert (("libev: a signal must not be attached to two different loops", |
2766 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
4044 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2767 | |
4045 | |
2768 | signals [w->signum - 1].loop = EV_A; |
4046 | signals [w->signum - 1].loop = EV_A; |
|
|
4047 | ECB_MEMORY_FENCE_RELEASE; |
2769 | #endif |
4048 | #endif |
2770 | |
4049 | |
2771 | EV_FREQUENT_CHECK; |
4050 | EV_FREQUENT_CHECK; |
2772 | |
4051 | |
2773 | #if EV_USE_SIGNALFD |
4052 | #if EV_USE_SIGNALFD |
… | |
… | |
2820 | sa.sa_handler = ev_sighandler; |
4099 | sa.sa_handler = ev_sighandler; |
2821 | sigfillset (&sa.sa_mask); |
4100 | sigfillset (&sa.sa_mask); |
2822 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
4101 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2823 | sigaction (w->signum, &sa, 0); |
4102 | sigaction (w->signum, &sa, 0); |
2824 | |
4103 | |
|
|
4104 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
4105 | { |
2825 | sigemptyset (&sa.sa_mask); |
4106 | sigemptyset (&sa.sa_mask); |
2826 | sigaddset (&sa.sa_mask, w->signum); |
4107 | sigaddset (&sa.sa_mask, w->signum); |
2827 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
4108 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
4109 | } |
2828 | #endif |
4110 | #endif |
2829 | } |
4111 | } |
2830 | |
4112 | |
2831 | EV_FREQUENT_CHECK; |
4113 | EV_FREQUENT_CHECK; |
2832 | } |
4114 | } |
2833 | |
4115 | |
2834 | void noinline |
4116 | void noinline |
2835 | ev_signal_stop (EV_P_ ev_signal *w) |
4117 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
2836 | { |
4118 | { |
2837 | clear_pending (EV_A_ (W)w); |
4119 | clear_pending (EV_A_ (W)w); |
2838 | if (expect_false (!ev_is_active (w))) |
4120 | if (expect_false (!ev_is_active (w))) |
2839 | return; |
4121 | return; |
2840 | |
4122 | |
… | |
… | |
2871 | #endif |
4153 | #endif |
2872 | |
4154 | |
2873 | #if EV_CHILD_ENABLE |
4155 | #if EV_CHILD_ENABLE |
2874 | |
4156 | |
2875 | void |
4157 | void |
2876 | ev_child_start (EV_P_ ev_child *w) |
4158 | ev_child_start (EV_P_ ev_child *w) EV_THROW |
2877 | { |
4159 | { |
2878 | #if EV_MULTIPLICITY |
4160 | #if EV_MULTIPLICITY |
2879 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
4161 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2880 | #endif |
4162 | #endif |
2881 | if (expect_false (ev_is_active (w))) |
4163 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2888 | |
4170 | |
2889 | EV_FREQUENT_CHECK; |
4171 | EV_FREQUENT_CHECK; |
2890 | } |
4172 | } |
2891 | |
4173 | |
2892 | void |
4174 | void |
2893 | ev_child_stop (EV_P_ ev_child *w) |
4175 | ev_child_stop (EV_P_ ev_child *w) EV_THROW |
2894 | { |
4176 | { |
2895 | clear_pending (EV_A_ (W)w); |
4177 | clear_pending (EV_A_ (W)w); |
2896 | if (expect_false (!ev_is_active (w))) |
4178 | if (expect_false (!ev_is_active (w))) |
2897 | return; |
4179 | return; |
2898 | |
4180 | |
… | |
… | |
2925 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
4207 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2926 | |
4208 | |
2927 | static void noinline |
4209 | static void noinline |
2928 | infy_add (EV_P_ ev_stat *w) |
4210 | infy_add (EV_P_ ev_stat *w) |
2929 | { |
4211 | { |
2930 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
4212 | w->wd = inotify_add_watch (fs_fd, w->path, |
|
|
4213 | IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY |
|
|
4214 | | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO |
|
|
4215 | | IN_DONT_FOLLOW | IN_MASK_ADD); |
2931 | |
4216 | |
2932 | if (w->wd >= 0) |
4217 | if (w->wd >= 0) |
2933 | { |
4218 | { |
2934 | struct statfs sfs; |
4219 | struct statfs sfs; |
2935 | |
4220 | |
… | |
… | |
2939 | |
4224 | |
2940 | if (!fs_2625) |
4225 | if (!fs_2625) |
2941 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
4226 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2942 | else if (!statfs (w->path, &sfs) |
4227 | else if (!statfs (w->path, &sfs) |
2943 | && (sfs.f_type == 0x1373 /* devfs */ |
4228 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
4229 | || sfs.f_type == 0x4006 /* fat */ |
|
|
4230 | || sfs.f_type == 0x4d44 /* msdos */ |
2944 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
4231 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
4232 | || sfs.f_type == 0x72b6 /* jffs2 */ |
|
|
4233 | || sfs.f_type == 0x858458f6 /* ramfs */ |
|
|
4234 | || sfs.f_type == 0x5346544e /* ntfs */ |
2945 | || sfs.f_type == 0x3153464a /* jfs */ |
4235 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
4236 | || sfs.f_type == 0x9123683e /* btrfs */ |
2946 | || sfs.f_type == 0x52654973 /* reiser3 */ |
4237 | || sfs.f_type == 0x52654973 /* reiser3 */ |
2947 | || sfs.f_type == 0x01021994 /* tempfs */ |
4238 | || sfs.f_type == 0x01021994 /* tmpfs */ |
2948 | || sfs.f_type == 0x58465342 /* xfs */)) |
4239 | || sfs.f_type == 0x58465342 /* xfs */)) |
2949 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
4240 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
2950 | else |
4241 | else |
2951 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
4242 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2952 | } |
4243 | } |
… | |
… | |
2973 | if (!pend || pend == path) |
4264 | if (!pend || pend == path) |
2974 | break; |
4265 | break; |
2975 | |
4266 | |
2976 | *pend = 0; |
4267 | *pend = 0; |
2977 | w->wd = inotify_add_watch (fs_fd, path, mask); |
4268 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2978 | } |
4269 | } |
2979 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
4270 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2980 | } |
4271 | } |
2981 | } |
4272 | } |
2982 | |
4273 | |
2983 | if (w->wd >= 0) |
4274 | if (w->wd >= 0) |
… | |
… | |
3050 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
4341 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3051 | ofs += sizeof (struct inotify_event) + ev->len; |
4342 | ofs += sizeof (struct inotify_event) + ev->len; |
3052 | } |
4343 | } |
3053 | } |
4344 | } |
3054 | |
4345 | |
3055 | inline_size unsigned int |
|
|
3056 | ev_linux_version (void) |
|
|
3057 | { |
|
|
3058 | struct utsname buf; |
|
|
3059 | unsigned int v; |
|
|
3060 | int i; |
|
|
3061 | char *p = buf.release; |
|
|
3062 | |
|
|
3063 | if (uname (&buf)) |
|
|
3064 | return 0; |
|
|
3065 | |
|
|
3066 | for (i = 3+1; --i; ) |
|
|
3067 | { |
|
|
3068 | unsigned int c = 0; |
|
|
3069 | |
|
|
3070 | for (;;) |
|
|
3071 | { |
|
|
3072 | if (*p >= '0' && *p <= '9') |
|
|
3073 | c = c * 10 + *p++ - '0'; |
|
|
3074 | else |
|
|
3075 | { |
|
|
3076 | p += *p == '.'; |
|
|
3077 | break; |
|
|
3078 | } |
|
|
3079 | } |
|
|
3080 | |
|
|
3081 | v = (v << 8) | c; |
|
|
3082 | } |
|
|
3083 | |
|
|
3084 | return v; |
|
|
3085 | } |
|
|
3086 | |
|
|
3087 | inline_size void |
4346 | inline_size void ecb_cold |
3088 | ev_check_2625 (EV_P) |
4347 | ev_check_2625 (EV_P) |
3089 | { |
4348 | { |
3090 | /* kernels < 2.6.25 are borked |
4349 | /* kernels < 2.6.25 are borked |
3091 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
4350 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3092 | */ |
4351 | */ |
… | |
… | |
3097 | } |
4356 | } |
3098 | |
4357 | |
3099 | inline_size int |
4358 | inline_size int |
3100 | infy_newfd (void) |
4359 | infy_newfd (void) |
3101 | { |
4360 | { |
3102 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
4361 | #if defined IN_CLOEXEC && defined IN_NONBLOCK |
3103 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
4362 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
3104 | if (fd >= 0) |
4363 | if (fd >= 0) |
3105 | return fd; |
4364 | return fd; |
3106 | #endif |
4365 | #endif |
3107 | return inotify_init (); |
4366 | return inotify_init (); |
… | |
… | |
3182 | #else |
4441 | #else |
3183 | # define EV_LSTAT(p,b) lstat (p, b) |
4442 | # define EV_LSTAT(p,b) lstat (p, b) |
3184 | #endif |
4443 | #endif |
3185 | |
4444 | |
3186 | void |
4445 | void |
3187 | ev_stat_stat (EV_P_ ev_stat *w) |
4446 | ev_stat_stat (EV_P_ ev_stat *w) EV_THROW |
3188 | { |
4447 | { |
3189 | if (lstat (w->path, &w->attr) < 0) |
4448 | if (lstat (w->path, &w->attr) < 0) |
3190 | w->attr.st_nlink = 0; |
4449 | w->attr.st_nlink = 0; |
3191 | else if (!w->attr.st_nlink) |
4450 | else if (!w->attr.st_nlink) |
3192 | w->attr.st_nlink = 1; |
4451 | w->attr.st_nlink = 1; |
… | |
… | |
3231 | ev_feed_event (EV_A_ w, EV_STAT); |
4490 | ev_feed_event (EV_A_ w, EV_STAT); |
3232 | } |
4491 | } |
3233 | } |
4492 | } |
3234 | |
4493 | |
3235 | void |
4494 | void |
3236 | ev_stat_start (EV_P_ ev_stat *w) |
4495 | ev_stat_start (EV_P_ ev_stat *w) EV_THROW |
3237 | { |
4496 | { |
3238 | if (expect_false (ev_is_active (w))) |
4497 | if (expect_false (ev_is_active (w))) |
3239 | return; |
4498 | return; |
3240 | |
4499 | |
3241 | ev_stat_stat (EV_A_ w); |
4500 | ev_stat_stat (EV_A_ w); |
… | |
… | |
3262 | |
4521 | |
3263 | EV_FREQUENT_CHECK; |
4522 | EV_FREQUENT_CHECK; |
3264 | } |
4523 | } |
3265 | |
4524 | |
3266 | void |
4525 | void |
3267 | ev_stat_stop (EV_P_ ev_stat *w) |
4526 | ev_stat_stop (EV_P_ ev_stat *w) EV_THROW |
3268 | { |
4527 | { |
3269 | clear_pending (EV_A_ (W)w); |
4528 | clear_pending (EV_A_ (W)w); |
3270 | if (expect_false (!ev_is_active (w))) |
4529 | if (expect_false (!ev_is_active (w))) |
3271 | return; |
4530 | return; |
3272 | |
4531 | |
… | |
… | |
3288 | } |
4547 | } |
3289 | #endif |
4548 | #endif |
3290 | |
4549 | |
3291 | #if EV_IDLE_ENABLE |
4550 | #if EV_IDLE_ENABLE |
3292 | void |
4551 | void |
3293 | ev_idle_start (EV_P_ ev_idle *w) |
4552 | ev_idle_start (EV_P_ ev_idle *w) EV_THROW |
3294 | { |
4553 | { |
3295 | if (expect_false (ev_is_active (w))) |
4554 | if (expect_false (ev_is_active (w))) |
3296 | return; |
4555 | return; |
3297 | |
4556 | |
3298 | pri_adjust (EV_A_ (W)w); |
4557 | pri_adjust (EV_A_ (W)w); |
… | |
… | |
3311 | |
4570 | |
3312 | EV_FREQUENT_CHECK; |
4571 | EV_FREQUENT_CHECK; |
3313 | } |
4572 | } |
3314 | |
4573 | |
3315 | void |
4574 | void |
3316 | ev_idle_stop (EV_P_ ev_idle *w) |
4575 | ev_idle_stop (EV_P_ ev_idle *w) EV_THROW |
3317 | { |
4576 | { |
3318 | clear_pending (EV_A_ (W)w); |
4577 | clear_pending (EV_A_ (W)w); |
3319 | if (expect_false (!ev_is_active (w))) |
4578 | if (expect_false (!ev_is_active (w))) |
3320 | return; |
4579 | return; |
3321 | |
4580 | |
… | |
… | |
3335 | } |
4594 | } |
3336 | #endif |
4595 | #endif |
3337 | |
4596 | |
3338 | #if EV_PREPARE_ENABLE |
4597 | #if EV_PREPARE_ENABLE |
3339 | void |
4598 | void |
3340 | ev_prepare_start (EV_P_ ev_prepare *w) |
4599 | ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW |
3341 | { |
4600 | { |
3342 | if (expect_false (ev_is_active (w))) |
4601 | if (expect_false (ev_is_active (w))) |
3343 | return; |
4602 | return; |
3344 | |
4603 | |
3345 | EV_FREQUENT_CHECK; |
4604 | EV_FREQUENT_CHECK; |
… | |
… | |
3350 | |
4609 | |
3351 | EV_FREQUENT_CHECK; |
4610 | EV_FREQUENT_CHECK; |
3352 | } |
4611 | } |
3353 | |
4612 | |
3354 | void |
4613 | void |
3355 | ev_prepare_stop (EV_P_ ev_prepare *w) |
4614 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW |
3356 | { |
4615 | { |
3357 | clear_pending (EV_A_ (W)w); |
4616 | clear_pending (EV_A_ (W)w); |
3358 | if (expect_false (!ev_is_active (w))) |
4617 | if (expect_false (!ev_is_active (w))) |
3359 | return; |
4618 | return; |
3360 | |
4619 | |
… | |
… | |
3373 | } |
4632 | } |
3374 | #endif |
4633 | #endif |
3375 | |
4634 | |
3376 | #if EV_CHECK_ENABLE |
4635 | #if EV_CHECK_ENABLE |
3377 | void |
4636 | void |
3378 | ev_check_start (EV_P_ ev_check *w) |
4637 | ev_check_start (EV_P_ ev_check *w) EV_THROW |
3379 | { |
4638 | { |
3380 | if (expect_false (ev_is_active (w))) |
4639 | if (expect_false (ev_is_active (w))) |
3381 | return; |
4640 | return; |
3382 | |
4641 | |
3383 | EV_FREQUENT_CHECK; |
4642 | EV_FREQUENT_CHECK; |
… | |
… | |
3388 | |
4647 | |
3389 | EV_FREQUENT_CHECK; |
4648 | EV_FREQUENT_CHECK; |
3390 | } |
4649 | } |
3391 | |
4650 | |
3392 | void |
4651 | void |
3393 | ev_check_stop (EV_P_ ev_check *w) |
4652 | ev_check_stop (EV_P_ ev_check *w) EV_THROW |
3394 | { |
4653 | { |
3395 | clear_pending (EV_A_ (W)w); |
4654 | clear_pending (EV_A_ (W)w); |
3396 | if (expect_false (!ev_is_active (w))) |
4655 | if (expect_false (!ev_is_active (w))) |
3397 | return; |
4656 | return; |
3398 | |
4657 | |
… | |
… | |
3411 | } |
4670 | } |
3412 | #endif |
4671 | #endif |
3413 | |
4672 | |
3414 | #if EV_EMBED_ENABLE |
4673 | #if EV_EMBED_ENABLE |
3415 | void noinline |
4674 | void noinline |
3416 | ev_embed_sweep (EV_P_ ev_embed *w) |
4675 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
3417 | { |
4676 | { |
3418 | ev_run (w->other, EVRUN_NOWAIT); |
4677 | ev_run (w->other, EVRUN_NOWAIT); |
3419 | } |
4678 | } |
3420 | |
4679 | |
3421 | static void |
4680 | static void |
… | |
… | |
3469 | ev_idle_stop (EV_A_ idle); |
4728 | ev_idle_stop (EV_A_ idle); |
3470 | } |
4729 | } |
3471 | #endif |
4730 | #endif |
3472 | |
4731 | |
3473 | void |
4732 | void |
3474 | ev_embed_start (EV_P_ ev_embed *w) |
4733 | ev_embed_start (EV_P_ ev_embed *w) EV_THROW |
3475 | { |
4734 | { |
3476 | if (expect_false (ev_is_active (w))) |
4735 | if (expect_false (ev_is_active (w))) |
3477 | return; |
4736 | return; |
3478 | |
4737 | |
3479 | { |
4738 | { |
… | |
… | |
3500 | |
4759 | |
3501 | EV_FREQUENT_CHECK; |
4760 | EV_FREQUENT_CHECK; |
3502 | } |
4761 | } |
3503 | |
4762 | |
3504 | void |
4763 | void |
3505 | ev_embed_stop (EV_P_ ev_embed *w) |
4764 | ev_embed_stop (EV_P_ ev_embed *w) EV_THROW |
3506 | { |
4765 | { |
3507 | clear_pending (EV_A_ (W)w); |
4766 | clear_pending (EV_A_ (W)w); |
3508 | if (expect_false (!ev_is_active (w))) |
4767 | if (expect_false (!ev_is_active (w))) |
3509 | return; |
4768 | return; |
3510 | |
4769 | |
… | |
… | |
3520 | } |
4779 | } |
3521 | #endif |
4780 | #endif |
3522 | |
4781 | |
3523 | #if EV_FORK_ENABLE |
4782 | #if EV_FORK_ENABLE |
3524 | void |
4783 | void |
3525 | ev_fork_start (EV_P_ ev_fork *w) |
4784 | ev_fork_start (EV_P_ ev_fork *w) EV_THROW |
3526 | { |
4785 | { |
3527 | if (expect_false (ev_is_active (w))) |
4786 | if (expect_false (ev_is_active (w))) |
3528 | return; |
4787 | return; |
3529 | |
4788 | |
3530 | EV_FREQUENT_CHECK; |
4789 | EV_FREQUENT_CHECK; |
… | |
… | |
3535 | |
4794 | |
3536 | EV_FREQUENT_CHECK; |
4795 | EV_FREQUENT_CHECK; |
3537 | } |
4796 | } |
3538 | |
4797 | |
3539 | void |
4798 | void |
3540 | ev_fork_stop (EV_P_ ev_fork *w) |
4799 | ev_fork_stop (EV_P_ ev_fork *w) EV_THROW |
3541 | { |
4800 | { |
3542 | clear_pending (EV_A_ (W)w); |
4801 | clear_pending (EV_A_ (W)w); |
3543 | if (expect_false (!ev_is_active (w))) |
4802 | if (expect_false (!ev_is_active (w))) |
3544 | return; |
4803 | return; |
3545 | |
4804 | |
… | |
… | |
3556 | |
4815 | |
3557 | EV_FREQUENT_CHECK; |
4816 | EV_FREQUENT_CHECK; |
3558 | } |
4817 | } |
3559 | #endif |
4818 | #endif |
3560 | |
4819 | |
|
|
4820 | #if EV_CLEANUP_ENABLE |
|
|
4821 | void |
|
|
4822 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW |
|
|
4823 | { |
|
|
4824 | if (expect_false (ev_is_active (w))) |
|
|
4825 | return; |
|
|
4826 | |
|
|
4827 | EV_FREQUENT_CHECK; |
|
|
4828 | |
|
|
4829 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
4830 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
|
|
4831 | cleanups [cleanupcnt - 1] = w; |
|
|
4832 | |
|
|
4833 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
4834 | ev_unref (EV_A); |
|
|
4835 | EV_FREQUENT_CHECK; |
|
|
4836 | } |
|
|
4837 | |
|
|
4838 | void |
|
|
4839 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW |
|
|
4840 | { |
|
|
4841 | clear_pending (EV_A_ (W)w); |
|
|
4842 | if (expect_false (!ev_is_active (w))) |
|
|
4843 | return; |
|
|
4844 | |
|
|
4845 | EV_FREQUENT_CHECK; |
|
|
4846 | ev_ref (EV_A); |
|
|
4847 | |
|
|
4848 | { |
|
|
4849 | int active = ev_active (w); |
|
|
4850 | |
|
|
4851 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
4852 | ev_active (cleanups [active - 1]) = active; |
|
|
4853 | } |
|
|
4854 | |
|
|
4855 | ev_stop (EV_A_ (W)w); |
|
|
4856 | |
|
|
4857 | EV_FREQUENT_CHECK; |
|
|
4858 | } |
|
|
4859 | #endif |
|
|
4860 | |
3561 | #if EV_ASYNC_ENABLE |
4861 | #if EV_ASYNC_ENABLE |
3562 | void |
4862 | void |
3563 | ev_async_start (EV_P_ ev_async *w) |
4863 | ev_async_start (EV_P_ ev_async *w) EV_THROW |
3564 | { |
4864 | { |
3565 | if (expect_false (ev_is_active (w))) |
4865 | if (expect_false (ev_is_active (w))) |
3566 | return; |
4866 | return; |
3567 | |
4867 | |
3568 | w->sent = 0; |
4868 | w->sent = 0; |
… | |
… | |
3577 | |
4877 | |
3578 | EV_FREQUENT_CHECK; |
4878 | EV_FREQUENT_CHECK; |
3579 | } |
4879 | } |
3580 | |
4880 | |
3581 | void |
4881 | void |
3582 | ev_async_stop (EV_P_ ev_async *w) |
4882 | ev_async_stop (EV_P_ ev_async *w) EV_THROW |
3583 | { |
4883 | { |
3584 | clear_pending (EV_A_ (W)w); |
4884 | clear_pending (EV_A_ (W)w); |
3585 | if (expect_false (!ev_is_active (w))) |
4885 | if (expect_false (!ev_is_active (w))) |
3586 | return; |
4886 | return; |
3587 | |
4887 | |
… | |
… | |
3598 | |
4898 | |
3599 | EV_FREQUENT_CHECK; |
4899 | EV_FREQUENT_CHECK; |
3600 | } |
4900 | } |
3601 | |
4901 | |
3602 | void |
4902 | void |
3603 | ev_async_send (EV_P_ ev_async *w) |
4903 | ev_async_send (EV_P_ ev_async *w) EV_THROW |
3604 | { |
4904 | { |
3605 | w->sent = 1; |
4905 | w->sent = 1; |
3606 | evpipe_write (EV_A_ &async_pending); |
4906 | evpipe_write (EV_A_ &async_pending); |
3607 | } |
4907 | } |
3608 | #endif |
4908 | #endif |
… | |
… | |
3645 | |
4945 | |
3646 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
4946 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
3647 | } |
4947 | } |
3648 | |
4948 | |
3649 | void |
4949 | void |
3650 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
4950 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW |
3651 | { |
4951 | { |
3652 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4952 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3653 | |
4953 | |
3654 | if (expect_false (!once)) |
4954 | if (expect_false (!once)) |
3655 | { |
4955 | { |
… | |
… | |
3676 | } |
4976 | } |
3677 | |
4977 | |
3678 | /*****************************************************************************/ |
4978 | /*****************************************************************************/ |
3679 | |
4979 | |
3680 | #if EV_WALK_ENABLE |
4980 | #if EV_WALK_ENABLE |
3681 | void |
4981 | void ecb_cold |
3682 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
4982 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
3683 | { |
4983 | { |
3684 | int i, j; |
4984 | int i, j; |
3685 | ev_watcher_list *wl, *wn; |
4985 | ev_watcher_list *wl, *wn; |
3686 | |
4986 | |
3687 | if (types & (EV_IO | EV_EMBED)) |
4987 | if (types & (EV_IO | EV_EMBED)) |
… | |
… | |
3730 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
5030 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
3731 | #endif |
5031 | #endif |
3732 | |
5032 | |
3733 | #if EV_IDLE_ENABLE |
5033 | #if EV_IDLE_ENABLE |
3734 | if (types & EV_IDLE) |
5034 | if (types & EV_IDLE) |
3735 | for (j = NUMPRI; i--; ) |
5035 | for (j = NUMPRI; j--; ) |
3736 | for (i = idlecnt [j]; i--; ) |
5036 | for (i = idlecnt [j]; i--; ) |
3737 | cb (EV_A_ EV_IDLE, idles [j][i]); |
5037 | cb (EV_A_ EV_IDLE, idles [j][i]); |
3738 | #endif |
5038 | #endif |
3739 | |
5039 | |
3740 | #if EV_FORK_ENABLE |
5040 | #if EV_FORK_ENABLE |
… | |
… | |
3793 | |
5093 | |
3794 | #if EV_MULTIPLICITY |
5094 | #if EV_MULTIPLICITY |
3795 | #include "ev_wrap.h" |
5095 | #include "ev_wrap.h" |
3796 | #endif |
5096 | #endif |
3797 | |
5097 | |
3798 | EV_CPP(}) |
|
|
3799 | |
|
|