1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009,2010 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann <libev@schmorp.de> |
5 | * All rights reserved. |
5 | * All rights reserved. |
6 | * |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
7 | * Redistribution and use in source and binary forms, with or without modifica- |
8 | * tion, are permitted provided that the following conditions are met: |
8 | * tion, are permitted provided that the following conditions are met: |
9 | * |
9 | * |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
10 | * 1. Redistributions of source code must retain the above copyright notice, |
11 | * this list of conditions and the following disclaimer. |
11 | * this list of conditions and the following disclaimer. |
12 | * |
12 | * |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
13 | * 2. Redistributions in binary form must reproduce the above copyright |
14 | * notice, this list of conditions and the following disclaimer in the |
14 | * notice, this list of conditions and the following disclaimer in the |
15 | * documentation and/or other materials provided with the distribution. |
15 | * documentation and/or other materials provided with the distribution. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
18 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
19 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
20 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
21 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
… | |
… | |
35 | * and other provisions required by the GPL. If you do not delete the |
35 | * and other provisions required by the GPL. If you do not delete the |
36 | * provisions above, a recipient may use your version of this file under |
36 | * provisions above, a recipient may use your version of this file under |
37 | * either the BSD or the GPL. |
37 | * either the BSD or the GPL. |
38 | */ |
38 | */ |
39 | |
39 | |
40 | #ifdef __cplusplus |
|
|
41 | extern "C" { |
|
|
42 | #endif |
|
|
43 | |
|
|
44 | /* this big block deduces configuration from config.h */ |
40 | /* this big block deduces configuration from config.h */ |
45 | #ifndef EV_STANDALONE |
41 | #ifndef EV_STANDALONE |
46 | # ifdef EV_CONFIG_H |
42 | # ifdef EV_CONFIG_H |
47 | # include EV_CONFIG_H |
43 | # include EV_CONFIG_H |
48 | # else |
44 | # else |
49 | # include "config.h" |
45 | # include "config.h" |
50 | # endif |
46 | # endif |
|
|
47 | |
|
|
48 | #if HAVE_FLOOR |
|
|
49 | # ifndef EV_USE_FLOOR |
|
|
50 | # define EV_USE_FLOOR 1 |
|
|
51 | # endif |
|
|
52 | #endif |
51 | |
53 | |
52 | # if HAVE_CLOCK_SYSCALL |
54 | # if HAVE_CLOCK_SYSCALL |
53 | # ifndef EV_USE_CLOCK_SYSCALL |
55 | # ifndef EV_USE_CLOCK_SYSCALL |
54 | # define EV_USE_CLOCK_SYSCALL 1 |
56 | # define EV_USE_CLOCK_SYSCALL 1 |
55 | # ifndef EV_USE_REALTIME |
57 | # ifndef EV_USE_REALTIME |
… | |
… | |
57 | # endif |
59 | # endif |
58 | # ifndef EV_USE_MONOTONIC |
60 | # ifndef EV_USE_MONOTONIC |
59 | # define EV_USE_MONOTONIC 1 |
61 | # define EV_USE_MONOTONIC 1 |
60 | # endif |
62 | # endif |
61 | # endif |
63 | # endif |
62 | # elif !defined(EV_USE_CLOCK_SYSCALL) |
64 | # elif !defined EV_USE_CLOCK_SYSCALL |
63 | # define EV_USE_CLOCK_SYSCALL 0 |
65 | # define EV_USE_CLOCK_SYSCALL 0 |
64 | # endif |
66 | # endif |
65 | |
67 | |
66 | # if HAVE_CLOCK_GETTIME |
68 | # if HAVE_CLOCK_GETTIME |
67 | # ifndef EV_USE_MONOTONIC |
69 | # ifndef EV_USE_MONOTONIC |
… | |
… | |
160 | # define EV_USE_EVENTFD 0 |
162 | # define EV_USE_EVENTFD 0 |
161 | # endif |
163 | # endif |
162 | |
164 | |
163 | #endif |
165 | #endif |
164 | |
166 | |
165 | #include <math.h> |
|
|
166 | #include <stdlib.h> |
167 | #include <stdlib.h> |
167 | #include <string.h> |
168 | #include <string.h> |
168 | #include <fcntl.h> |
169 | #include <fcntl.h> |
169 | #include <stddef.h> |
170 | #include <stddef.h> |
170 | |
171 | |
… | |
… | |
180 | |
181 | |
181 | #ifdef EV_H |
182 | #ifdef EV_H |
182 | # include EV_H |
183 | # include EV_H |
183 | #else |
184 | #else |
184 | # include "ev.h" |
185 | # include "ev.h" |
|
|
186 | #endif |
|
|
187 | |
|
|
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 |
185 | #endif |
197 | #endif |
186 | |
198 | |
187 | #ifndef _WIN32 |
199 | #ifndef _WIN32 |
188 | # include <sys/time.h> |
200 | # include <sys/time.h> |
189 | # include <sys/wait.h> |
201 | # include <sys/wait.h> |
190 | # include <unistd.h> |
202 | # include <unistd.h> |
191 | #else |
203 | #else |
192 | # include <io.h> |
204 | # include <io.h> |
193 | # define WIN32_LEAN_AND_MEAN |
205 | # define WIN32_LEAN_AND_MEAN |
|
|
206 | # include <winsock2.h> |
194 | # include <windows.h> |
207 | # include <windows.h> |
195 | # ifndef EV_SELECT_IS_WINSOCKET |
208 | # ifndef EV_SELECT_IS_WINSOCKET |
196 | # define EV_SELECT_IS_WINSOCKET 1 |
209 | # define EV_SELECT_IS_WINSOCKET 1 |
197 | # endif |
210 | # endif |
198 | # undef EV_AVOID_STDIO |
211 | # undef EV_AVOID_STDIO |
… | |
… | |
207 | #define _DARWIN_UNLIMITED_SELECT 1 |
220 | #define _DARWIN_UNLIMITED_SELECT 1 |
208 | |
221 | |
209 | /* 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 */ |
210 | |
223 | |
211 | /* try to deduce the maximum number of signals on this platform */ |
224 | /* try to deduce the maximum number of signals on this platform */ |
212 | #if defined (EV_NSIG) |
225 | #if defined EV_NSIG |
213 | /* use what's provided */ |
226 | /* use what's provided */ |
214 | #elif defined (NSIG) |
227 | #elif defined NSIG |
215 | # define EV_NSIG (NSIG) |
228 | # define EV_NSIG (NSIG) |
216 | #elif defined(_NSIG) |
229 | #elif defined _NSIG |
217 | # define EV_NSIG (_NSIG) |
230 | # define EV_NSIG (_NSIG) |
218 | #elif defined (SIGMAX) |
231 | #elif defined SIGMAX |
219 | # define EV_NSIG (SIGMAX+1) |
232 | # define EV_NSIG (SIGMAX+1) |
220 | #elif defined (SIG_MAX) |
233 | #elif defined SIG_MAX |
221 | # define EV_NSIG (SIG_MAX+1) |
234 | # define EV_NSIG (SIG_MAX+1) |
222 | #elif defined (_SIG_MAX) |
235 | #elif defined _SIG_MAX |
223 | # define EV_NSIG (_SIG_MAX+1) |
236 | # define EV_NSIG (_SIG_MAX+1) |
224 | #elif defined (MAXSIG) |
237 | #elif defined MAXSIG |
225 | # define EV_NSIG (MAXSIG+1) |
238 | # define EV_NSIG (MAXSIG+1) |
226 | #elif defined (MAX_SIG) |
239 | #elif defined MAX_SIG |
227 | # define EV_NSIG (MAX_SIG+1) |
240 | # define EV_NSIG (MAX_SIG+1) |
228 | #elif defined (SIGARRAYSIZE) |
241 | #elif defined SIGARRAYSIZE |
229 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
242 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
230 | #elif defined (_sys_nsig) |
243 | #elif defined _sys_nsig |
231 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
244 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
232 | #else |
245 | #else |
233 | # error "unable to find value for NSIG, please report" |
246 | # error "unable to find value for NSIG, please report" |
234 | /* to make it compile regardless, just remove the above line, */ |
247 | /* to make it compile regardless, just remove the above line, */ |
235 | /* but consider reporting it, too! :) */ |
248 | /* but consider reporting it, too! :) */ |
236 | # define EV_NSIG 65 |
249 | # define EV_NSIG 65 |
237 | #endif |
250 | #endif |
238 | |
251 | |
|
|
252 | #ifndef EV_USE_FLOOR |
|
|
253 | # define EV_USE_FLOOR 0 |
|
|
254 | #endif |
|
|
255 | |
239 | #ifndef EV_USE_CLOCK_SYSCALL |
256 | #ifndef EV_USE_CLOCK_SYSCALL |
240 | # if __linux && __GLIBC__ >= 2 |
257 | # if __linux && __GLIBC__ >= 2 |
241 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
258 | # define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS |
242 | # else |
259 | # else |
243 | # define EV_USE_CLOCK_SYSCALL 0 |
260 | # define EV_USE_CLOCK_SYSCALL 0 |
244 | # endif |
261 | # endif |
245 | #endif |
262 | #endif |
246 | |
263 | |
247 | #ifndef EV_USE_MONOTONIC |
264 | #ifndef EV_USE_MONOTONIC |
248 | # if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 |
265 | # if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0 |
249 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
266 | # define EV_USE_MONOTONIC EV_FEATURE_OS |
250 | # else |
267 | # else |
251 | # define EV_USE_MONOTONIC 0 |
268 | # define EV_USE_MONOTONIC 0 |
252 | # endif |
269 | # endif |
253 | #endif |
270 | #endif |
… | |
… | |
343 | #endif |
360 | #endif |
344 | |
361 | |
345 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
362 | /* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ |
346 | /* which makes programs even slower. might work on other unices, too. */ |
363 | /* which makes programs even slower. might work on other unices, too. */ |
347 | #if EV_USE_CLOCK_SYSCALL |
364 | #if EV_USE_CLOCK_SYSCALL |
348 | # include <syscall.h> |
365 | # include <sys/syscall.h> |
349 | # ifdef SYS_clock_gettime |
366 | # ifdef SYS_clock_gettime |
350 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
367 | # define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
351 | # undef EV_USE_MONOTONIC |
368 | # undef EV_USE_MONOTONIC |
352 | # define EV_USE_MONOTONIC 1 |
369 | # define EV_USE_MONOTONIC 1 |
353 | # else |
370 | # else |
… | |
… | |
378 | # undef EV_USE_INOTIFY |
395 | # undef EV_USE_INOTIFY |
379 | # define EV_USE_INOTIFY 0 |
396 | # define EV_USE_INOTIFY 0 |
380 | #endif |
397 | #endif |
381 | |
398 | |
382 | #if !EV_USE_NANOSLEEP |
399 | #if !EV_USE_NANOSLEEP |
383 | # ifndef _WIN32 |
400 | /* hp-ux has it in sys/time.h, which we unconditionally include above */ |
|
|
401 | # if !defined _WIN32 && !defined __hpux |
384 | # include <sys/select.h> |
402 | # include <sys/select.h> |
385 | # endif |
403 | # endif |
386 | #endif |
404 | #endif |
387 | |
405 | |
388 | #if EV_USE_INOTIFY |
406 | #if EV_USE_INOTIFY |
389 | # include <sys/utsname.h> |
|
|
390 | # include <sys/statfs.h> |
407 | # include <sys/statfs.h> |
391 | # include <sys/inotify.h> |
408 | # include <sys/inotify.h> |
392 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
409 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
393 | # ifndef IN_DONT_FOLLOW |
410 | # ifndef IN_DONT_FOLLOW |
394 | # undef EV_USE_INOTIFY |
411 | # undef EV_USE_INOTIFY |
395 | # define EV_USE_INOTIFY 0 |
412 | # define EV_USE_INOTIFY 0 |
396 | # endif |
413 | # endif |
397 | #endif |
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398 | |
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399 | #if EV_SELECT_IS_WINSOCKET |
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400 | # include <winsock.h> |
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|
401 | #endif |
414 | #endif |
402 | |
415 | |
403 | #if EV_USE_EVENTFD |
416 | #if EV_USE_EVENTFD |
404 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
417 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
405 | # include <stdint.h> |
418 | # include <stdint.h> |
… | |
… | |
411 | # define EFD_CLOEXEC O_CLOEXEC |
424 | # define EFD_CLOEXEC O_CLOEXEC |
412 | # else |
425 | # else |
413 | # define EFD_CLOEXEC 02000000 |
426 | # define EFD_CLOEXEC 02000000 |
414 | # endif |
427 | # endif |
415 | # endif |
428 | # endif |
416 | # ifdef __cplusplus |
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417 | extern "C" { |
|
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418 | # endif |
|
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419 | int (eventfd) (unsigned int initval, int flags); |
429 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
420 | # ifdef __cplusplus |
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421 | } |
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422 | # endif |
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423 | #endif |
430 | #endif |
424 | |
431 | |
425 | #if EV_USE_SIGNALFD |
432 | #if EV_USE_SIGNALFD |
426 | /* 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 */ |
427 | # include <stdint.h> |
434 | # include <stdint.h> |
… | |
… | |
433 | # define SFD_CLOEXEC O_CLOEXEC |
440 | # define SFD_CLOEXEC O_CLOEXEC |
434 | # else |
441 | # else |
435 | # define SFD_CLOEXEC 02000000 |
442 | # define SFD_CLOEXEC 02000000 |
436 | # endif |
443 | # endif |
437 | # endif |
444 | # endif |
438 | # ifdef __cplusplus |
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439 | extern "C" { |
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440 | # endif |
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441 | int signalfd (int fd, const sigset_t *mask, int flags); |
445 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
442 | |
446 | |
443 | struct signalfd_siginfo |
447 | struct signalfd_siginfo |
444 | { |
448 | { |
445 | uint32_t ssi_signo; |
449 | uint32_t ssi_signo; |
446 | char pad[128 - sizeof (uint32_t)]; |
450 | char pad[128 - sizeof (uint32_t)]; |
447 | }; |
451 | }; |
448 | # ifdef __cplusplus |
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449 | } |
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450 | # endif |
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451 | #endif |
452 | #endif |
452 | |
453 | |
453 | /**/ |
454 | /**/ |
454 | |
455 | |
455 | #if EV_VERIFY >= 3 |
456 | #if EV_VERIFY >= 3 |
… | |
… | |
457 | #else |
458 | #else |
458 | # define EV_FREQUENT_CHECK do { } while (0) |
459 | # define EV_FREQUENT_CHECK do { } while (0) |
459 | #endif |
460 | #endif |
460 | |
461 | |
461 | /* |
462 | /* |
462 | * This is used to avoid floating point rounding problems. |
463 | * This is used to work around floating point rounding problems. |
463 | * It is added to ev_rt_now when scheduling periodics |
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464 | * to ensure progress, time-wise, even when rounding |
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465 | * errors are against us. |
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466 | * This value is good at least till the year 4000. |
464 | * This value is good at least till the year 4000. |
467 | * Better solutions welcome. |
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468 | */ |
465 | */ |
469 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
466 | #define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ |
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467 | /*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ |
470 | |
468 | |
471 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
469 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
472 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
470 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
473 | |
471 | |
474 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
472 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
475 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
473 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
476 | |
474 | |
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475 | /* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ |
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476 | /* ECB.H BEGIN */ |
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477 | /* |
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478 | * libecb - http://software.schmorp.de/pkg/libecb |
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479 | * |
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480 | * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> |
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481 | * Copyright (©) 2011 Emanuele Giaquinta |
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482 | * All rights reserved. |
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483 | * |
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484 | * Redistribution and use in source and binary forms, with or without modifica- |
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485 | * tion, are permitted provided that the following conditions are met: |
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486 | * |
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487 | * 1. Redistributions of source code must retain the above copyright notice, |
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488 | * this list of conditions and the following disclaimer. |
|
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489 | * |
|
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490 | * 2. Redistributions in binary form must reproduce the above copyright |
|
|
491 | * notice, this list of conditions and the following disclaimer in the |
|
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492 | * documentation and/or other materials provided with the distribution. |
|
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493 | * |
|
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494 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
|
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495 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
|
|
496 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
|
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497 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
|
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498 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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499 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
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500 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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501 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- |
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502 | * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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503 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
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504 | */ |
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505 | |
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506 | #ifndef ECB_H |
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507 | #define ECB_H |
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508 | |
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509 | /* 16 bits major, 16 bits minor */ |
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510 | #define ECB_VERSION 0x00010001 |
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511 | |
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512 | #ifdef _WIN32 |
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513 | typedef signed char int8_t; |
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514 | typedef unsigned char uint8_t; |
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515 | typedef signed short int16_t; |
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516 | typedef unsigned short uint16_t; |
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517 | typedef signed int int32_t; |
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518 | typedef unsigned int uint32_t; |
477 | #if __GNUC__ >= 4 |
519 | #if __GNUC__ |
478 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
520 | typedef signed long long int64_t; |
479 | # define noinline __attribute__ ((noinline)) |
521 | typedef unsigned long long uint64_t; |
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522 | #else /* _MSC_VER || __BORLANDC__ */ |
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523 | typedef signed __int64 int64_t; |
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524 | typedef unsigned __int64 uint64_t; |
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525 | #endif |
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526 | #ifdef _WIN64 |
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527 | #define ECB_PTRSIZE 8 |
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528 | typedef uint64_t uintptr_t; |
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529 | typedef int64_t intptr_t; |
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530 | #else |
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531 | #define ECB_PTRSIZE 4 |
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532 | typedef uint32_t uintptr_t; |
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533 | typedef int32_t intptr_t; |
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534 | #endif |
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535 | typedef intptr_t ptrdiff_t; |
480 | #else |
536 | #else |
481 | # define expect(expr,value) (expr) |
537 | #include <inttypes.h> |
482 | # define noinline |
538 | #if UINTMAX_MAX > 0xffffffffU |
483 | # if __STDC_VERSION__ < 199901L && __GNUC__ < 2 |
539 | #define ECB_PTRSIZE 8 |
484 | # define inline |
540 | #else |
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541 | #define ECB_PTRSIZE 4 |
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542 | #endif |
485 | # endif |
543 | #endif |
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544 | |
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545 | /* many compilers define _GNUC_ to some versions but then only implement |
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546 | * what their idiot authors think are the "more important" extensions, |
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547 | * causing enormous grief in return for some better fake benchmark numbers. |
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548 | * or so. |
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549 | * we try to detect these and simply assume they are not gcc - if they have |
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550 | * an issue with that they should have done it right in the first place. |
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551 | */ |
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552 | #ifndef ECB_GCC_VERSION |
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553 | #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__ |
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554 | #define ECB_GCC_VERSION(major,minor) 0 |
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555 | #else |
|
|
556 | #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) |
486 | #endif |
557 | #endif |
|
|
558 | #endif |
487 | |
559 | |
|
|
560 | #define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */ |
|
|
561 | #define ECB_C99 (__STDC_VERSION__ >= 199901L) |
|
|
562 | #define ECB_C11 (__STDC_VERSION__ >= 201112L) |
|
|
563 | #define ECB_CPP (__cplusplus+0) |
|
|
564 | #define ECB_CPP11 (__cplusplus >= 201103L) |
|
|
565 | |
|
|
566 | /*****************************************************************************/ |
|
|
567 | |
|
|
568 | /* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ |
|
|
569 | /* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ |
|
|
570 | |
|
|
571 | #if ECB_NO_THREADS |
|
|
572 | #define ECB_NO_SMP 1 |
|
|
573 | #endif |
|
|
574 | |
|
|
575 | #if ECB_NO_SMP |
|
|
576 | #define ECB_MEMORY_FENCE do { } while (0) |
|
|
577 | #endif |
|
|
578 | |
|
|
579 | #ifndef ECB_MEMORY_FENCE |
|
|
580 | #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
581 | #if __i386 || __i386__ |
|
|
582 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") |
|
|
583 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
584 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
585 | #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ |
|
|
586 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") |
|
|
587 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") |
|
|
588 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
589 | #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ |
|
|
590 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
591 | #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ |
|
|
592 | || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ |
|
|
593 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") |
|
|
594 | #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ |
|
|
595 | || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ |
|
|
596 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") |
|
|
597 | #elif __sparc || __sparc__ |
|
|
598 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") |
|
|
599 | #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") |
|
|
600 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") |
|
|
601 | #elif defined __s390__ || defined __s390x__ |
|
|
602 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") |
|
|
603 | #elif defined __mips__ |
|
|
604 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") |
|
|
605 | #elif defined __alpha__ |
|
|
606 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory") |
|
|
607 | #elif defined __hppa__ |
|
|
608 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory") |
|
|
609 | #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") |
|
|
610 | #elif defined __ia64__ |
|
|
611 | #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory") |
|
|
612 | #endif |
|
|
613 | #endif |
|
|
614 | #endif |
|
|
615 | |
|
|
616 | #ifndef ECB_MEMORY_FENCE |
|
|
617 | #if ECB_GCC_VERSION(4,7) |
|
|
618 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
619 | #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
620 | #elif defined __clang && __has_feature (cxx_atomic) |
|
|
621 | /* see comment below (stdatomic.h) about the C11 memory model. */ |
|
|
622 | #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) |
|
|
623 | #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ |
|
|
624 | #define ECB_MEMORY_FENCE __sync_synchronize () |
|
|
625 | #elif _MSC_VER >= 1400 /* VC++ 2005 */ |
|
|
626 | #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) |
|
|
627 | #define ECB_MEMORY_FENCE _ReadWriteBarrier () |
|
|
628 | #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ |
|
|
629 | #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () |
|
|
630 | #elif defined _WIN32 |
|
|
631 | #include <WinNT.h> |
|
|
632 | #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ |
|
|
633 | #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 |
|
|
634 | #include <mbarrier.h> |
|
|
635 | #define ECB_MEMORY_FENCE __machine_rw_barrier () |
|
|
636 | #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () |
|
|
637 | #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () |
|
|
638 | #elif __xlC__ |
|
|
639 | #define ECB_MEMORY_FENCE __sync () |
|
|
640 | #endif |
|
|
641 | #endif |
|
|
642 | |
|
|
643 | #ifndef ECB_MEMORY_FENCE |
|
|
644 | #if ECB_C11 && !defined __STDC_NO_ATOMICS__ |
|
|
645 | /* we assume that these memory fences work on all variables/all memory accesses, */ |
|
|
646 | /* not just C11 atomics and atomic accesses */ |
|
|
647 | #include <stdatomic.h> |
|
|
648 | /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */ |
|
|
649 | /* any fence other than seq_cst, which isn't very efficient for us. */ |
|
|
650 | /* Why that is, we don't know - either the C11 memory model is quite useless */ |
|
|
651 | /* for most usages, or gcc and clang have a bug */ |
|
|
652 | /* I *currently* lean towards the latter, and inefficiently implement */ |
|
|
653 | /* all three of ecb's fences as a seq_cst fence */ |
|
|
654 | #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) |
|
|
655 | #endif |
|
|
656 | #endif |
|
|
657 | |
|
|
658 | #ifndef ECB_MEMORY_FENCE |
|
|
659 | #if !ECB_AVOID_PTHREADS |
|
|
660 | /* |
|
|
661 | * if you get undefined symbol references to pthread_mutex_lock, |
|
|
662 | * or failure to find pthread.h, then you should implement |
|
|
663 | * the ECB_MEMORY_FENCE operations for your cpu/compiler |
|
|
664 | * OR provide pthread.h and link against the posix thread library |
|
|
665 | * of your system. |
|
|
666 | */ |
|
|
667 | #include <pthread.h> |
|
|
668 | #define ECB_NEEDS_PTHREADS 1 |
|
|
669 | #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1 |
|
|
670 | |
|
|
671 | static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; |
|
|
672 | #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) |
|
|
673 | #endif |
|
|
674 | #endif |
|
|
675 | |
|
|
676 | #if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE |
|
|
677 | #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
678 | #endif |
|
|
679 | |
|
|
680 | #if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE |
|
|
681 | #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
682 | #endif |
|
|
683 | |
|
|
684 | /*****************************************************************************/ |
|
|
685 | |
|
|
686 | #if __cplusplus |
|
|
687 | #define ecb_inline static inline |
|
|
688 | #elif ECB_GCC_VERSION(2,5) |
|
|
689 | #define ecb_inline static __inline__ |
|
|
690 | #elif ECB_C99 |
|
|
691 | #define ecb_inline static inline |
|
|
692 | #else |
|
|
693 | #define ecb_inline static |
|
|
694 | #endif |
|
|
695 | |
|
|
696 | #if ECB_GCC_VERSION(3,3) |
|
|
697 | #define ecb_restrict __restrict__ |
|
|
698 | #elif ECB_C99 |
|
|
699 | #define ecb_restrict restrict |
|
|
700 | #else |
|
|
701 | #define ecb_restrict |
|
|
702 | #endif |
|
|
703 | |
|
|
704 | typedef int ecb_bool; |
|
|
705 | |
|
|
706 | #define ECB_CONCAT_(a, b) a ## b |
|
|
707 | #define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) |
|
|
708 | #define ECB_STRINGIFY_(a) # a |
|
|
709 | #define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) |
|
|
710 | |
|
|
711 | #define ecb_function_ ecb_inline |
|
|
712 | |
|
|
713 | #if ECB_GCC_VERSION(3,1) |
|
|
714 | #define ecb_attribute(attrlist) __attribute__(attrlist) |
|
|
715 | #define ecb_is_constant(expr) __builtin_constant_p (expr) |
|
|
716 | #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
717 | #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) |
|
|
718 | #else |
|
|
719 | #define ecb_attribute(attrlist) |
|
|
720 | #define ecb_is_constant(expr) 0 |
|
|
721 | #define ecb_expect(expr,value) (expr) |
|
|
722 | #define ecb_prefetch(addr,rw,locality) |
|
|
723 | #endif |
|
|
724 | |
|
|
725 | /* no emulation for ecb_decltype */ |
|
|
726 | #if ECB_GCC_VERSION(4,5) |
|
|
727 | #define ecb_decltype(x) __decltype(x) |
|
|
728 | #elif ECB_GCC_VERSION(3,0) |
|
|
729 | #define ecb_decltype(x) __typeof(x) |
|
|
730 | #endif |
|
|
731 | |
|
|
732 | #define ecb_noinline ecb_attribute ((__noinline__)) |
|
|
733 | #define ecb_unused ecb_attribute ((__unused__)) |
|
|
734 | #define ecb_const ecb_attribute ((__const__)) |
|
|
735 | #define ecb_pure ecb_attribute ((__pure__)) |
|
|
736 | |
|
|
737 | #if ECB_C11 |
|
|
738 | #define ecb_noreturn _Noreturn |
|
|
739 | #else |
|
|
740 | #define ecb_noreturn ecb_attribute ((__noreturn__)) |
|
|
741 | #endif |
|
|
742 | |
|
|
743 | #if ECB_GCC_VERSION(4,3) |
|
|
744 | #define ecb_artificial ecb_attribute ((__artificial__)) |
|
|
745 | #define ecb_hot ecb_attribute ((__hot__)) |
|
|
746 | #define ecb_cold ecb_attribute ((__cold__)) |
|
|
747 | #else |
|
|
748 | #define ecb_artificial |
|
|
749 | #define ecb_hot |
|
|
750 | #define ecb_cold |
|
|
751 | #endif |
|
|
752 | |
|
|
753 | /* put around conditional expressions if you are very sure that the */ |
|
|
754 | /* expression is mostly true or mostly false. note that these return */ |
|
|
755 | /* booleans, not the expression. */ |
488 | #define expect_false(expr) expect ((expr) != 0, 0) |
756 | #define ecb_expect_false(expr) ecb_expect (!!(expr), 0) |
489 | #define expect_true(expr) expect ((expr) != 0, 1) |
757 | #define ecb_expect_true(expr) ecb_expect (!!(expr), 1) |
|
|
758 | /* for compatibility to the rest of the world */ |
|
|
759 | #define ecb_likely(expr) ecb_expect_true (expr) |
|
|
760 | #define ecb_unlikely(expr) ecb_expect_false (expr) |
|
|
761 | |
|
|
762 | /* count trailing zero bits and count # of one bits */ |
|
|
763 | #if ECB_GCC_VERSION(3,4) |
|
|
764 | /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */ |
|
|
765 | #define ecb_ld32(x) (__builtin_clz (x) ^ 31) |
|
|
766 | #define ecb_ld64(x) (__builtin_clzll (x) ^ 63) |
|
|
767 | #define ecb_ctz32(x) __builtin_ctz (x) |
|
|
768 | #define ecb_ctz64(x) __builtin_ctzll (x) |
|
|
769 | #define ecb_popcount32(x) __builtin_popcount (x) |
|
|
770 | /* no popcountll */ |
|
|
771 | #else |
|
|
772 | ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const; |
|
|
773 | ecb_function_ int |
|
|
774 | ecb_ctz32 (uint32_t x) |
|
|
775 | { |
|
|
776 | int r = 0; |
|
|
777 | |
|
|
778 | x &= ~x + 1; /* this isolates the lowest bit */ |
|
|
779 | |
|
|
780 | #if ECB_branchless_on_i386 |
|
|
781 | r += !!(x & 0xaaaaaaaa) << 0; |
|
|
782 | r += !!(x & 0xcccccccc) << 1; |
|
|
783 | r += !!(x & 0xf0f0f0f0) << 2; |
|
|
784 | r += !!(x & 0xff00ff00) << 3; |
|
|
785 | r += !!(x & 0xffff0000) << 4; |
|
|
786 | #else |
|
|
787 | if (x & 0xaaaaaaaa) r += 1; |
|
|
788 | if (x & 0xcccccccc) r += 2; |
|
|
789 | if (x & 0xf0f0f0f0) r += 4; |
|
|
790 | if (x & 0xff00ff00) r += 8; |
|
|
791 | if (x & 0xffff0000) r += 16; |
|
|
792 | #endif |
|
|
793 | |
|
|
794 | return r; |
|
|
795 | } |
|
|
796 | |
|
|
797 | ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const; |
|
|
798 | ecb_function_ int |
|
|
799 | ecb_ctz64 (uint64_t x) |
|
|
800 | { |
|
|
801 | int shift = x & 0xffffffffU ? 0 : 32; |
|
|
802 | return ecb_ctz32 (x >> shift) + shift; |
|
|
803 | } |
|
|
804 | |
|
|
805 | ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const; |
|
|
806 | ecb_function_ int |
|
|
807 | ecb_popcount32 (uint32_t x) |
|
|
808 | { |
|
|
809 | x -= (x >> 1) & 0x55555555; |
|
|
810 | x = ((x >> 2) & 0x33333333) + (x & 0x33333333); |
|
|
811 | x = ((x >> 4) + x) & 0x0f0f0f0f; |
|
|
812 | x *= 0x01010101; |
|
|
813 | |
|
|
814 | return x >> 24; |
|
|
815 | } |
|
|
816 | |
|
|
817 | ecb_function_ int ecb_ld32 (uint32_t x) ecb_const; |
|
|
818 | ecb_function_ int ecb_ld32 (uint32_t x) |
|
|
819 | { |
|
|
820 | int r = 0; |
|
|
821 | |
|
|
822 | if (x >> 16) { x >>= 16; r += 16; } |
|
|
823 | if (x >> 8) { x >>= 8; r += 8; } |
|
|
824 | if (x >> 4) { x >>= 4; r += 4; } |
|
|
825 | if (x >> 2) { x >>= 2; r += 2; } |
|
|
826 | if (x >> 1) { r += 1; } |
|
|
827 | |
|
|
828 | return r; |
|
|
829 | } |
|
|
830 | |
|
|
831 | ecb_function_ int ecb_ld64 (uint64_t x) ecb_const; |
|
|
832 | ecb_function_ int ecb_ld64 (uint64_t x) |
|
|
833 | { |
|
|
834 | int r = 0; |
|
|
835 | |
|
|
836 | if (x >> 32) { x >>= 32; r += 32; } |
|
|
837 | |
|
|
838 | return r + ecb_ld32 (x); |
|
|
839 | } |
|
|
840 | #endif |
|
|
841 | |
|
|
842 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const; |
|
|
843 | ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } |
|
|
844 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const; |
|
|
845 | ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); } |
|
|
846 | |
|
|
847 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
|
|
848 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
|
|
849 | { |
|
|
850 | return ( (x * 0x0802U & 0x22110U) |
|
|
851 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
|
|
852 | } |
|
|
853 | |
|
|
854 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
|
|
855 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
|
|
856 | { |
|
|
857 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
|
|
858 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
|
|
859 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
|
|
860 | x = ( x >> 8 ) | ( x << 8); |
|
|
861 | |
|
|
862 | return x; |
|
|
863 | } |
|
|
864 | |
|
|
865 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
|
|
866 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
|
|
867 | { |
|
|
868 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
|
|
869 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
|
|
870 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
|
|
871 | x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8); |
|
|
872 | x = ( x >> 16 ) | ( x << 16); |
|
|
873 | |
|
|
874 | return x; |
|
|
875 | } |
|
|
876 | |
|
|
877 | /* popcount64 is only available on 64 bit cpus as gcc builtin */ |
|
|
878 | /* so for this version we are lazy */ |
|
|
879 | ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; |
|
|
880 | ecb_function_ int |
|
|
881 | ecb_popcount64 (uint64_t x) |
|
|
882 | { |
|
|
883 | return ecb_popcount32 (x) + ecb_popcount32 (x >> 32); |
|
|
884 | } |
|
|
885 | |
|
|
886 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const; |
|
|
887 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const; |
|
|
888 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const; |
|
|
889 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const; |
|
|
890 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const; |
|
|
891 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const; |
|
|
892 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const; |
|
|
893 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const; |
|
|
894 | |
|
|
895 | ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); } |
|
|
896 | ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); } |
|
|
897 | ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); } |
|
|
898 | ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); } |
|
|
899 | ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } |
|
|
900 | ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } |
|
|
901 | ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } |
|
|
902 | ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } |
|
|
903 | |
|
|
904 | #if ECB_GCC_VERSION(4,3) |
|
|
905 | #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) |
|
|
906 | #define ecb_bswap32(x) __builtin_bswap32 (x) |
|
|
907 | #define ecb_bswap64(x) __builtin_bswap64 (x) |
|
|
908 | #else |
|
|
909 | ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const; |
|
|
910 | ecb_function_ uint16_t |
|
|
911 | ecb_bswap16 (uint16_t x) |
|
|
912 | { |
|
|
913 | return ecb_rotl16 (x, 8); |
|
|
914 | } |
|
|
915 | |
|
|
916 | ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const; |
|
|
917 | ecb_function_ uint32_t |
|
|
918 | ecb_bswap32 (uint32_t x) |
|
|
919 | { |
|
|
920 | return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16); |
|
|
921 | } |
|
|
922 | |
|
|
923 | ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const; |
|
|
924 | ecb_function_ uint64_t |
|
|
925 | ecb_bswap64 (uint64_t x) |
|
|
926 | { |
|
|
927 | return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32); |
|
|
928 | } |
|
|
929 | #endif |
|
|
930 | |
|
|
931 | #if ECB_GCC_VERSION(4,5) |
|
|
932 | #define ecb_unreachable() __builtin_unreachable () |
|
|
933 | #else |
|
|
934 | /* this seems to work fine, but gcc always emits a warning for it :/ */ |
|
|
935 | ecb_inline void ecb_unreachable (void) ecb_noreturn; |
|
|
936 | ecb_inline void ecb_unreachable (void) { } |
|
|
937 | #endif |
|
|
938 | |
|
|
939 | /* try to tell the compiler that some condition is definitely true */ |
|
|
940 | #define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) |
|
|
941 | |
|
|
942 | ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; |
|
|
943 | ecb_inline unsigned char |
|
|
944 | ecb_byteorder_helper (void) |
|
|
945 | { |
|
|
946 | const uint32_t u = 0x11223344; |
|
|
947 | return *(unsigned char *)&u; |
|
|
948 | } |
|
|
949 | |
|
|
950 | ecb_inline ecb_bool ecb_big_endian (void) ecb_const; |
|
|
951 | ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } |
|
|
952 | ecb_inline ecb_bool ecb_little_endian (void) ecb_const; |
|
|
953 | ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } |
|
|
954 | |
|
|
955 | #if ECB_GCC_VERSION(3,0) || ECB_C99 |
|
|
956 | #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) |
|
|
957 | #else |
|
|
958 | #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) |
|
|
959 | #endif |
|
|
960 | |
|
|
961 | #if __cplusplus |
|
|
962 | template<typename T> |
|
|
963 | static inline T ecb_div_rd (T val, T div) |
|
|
964 | { |
|
|
965 | return val < 0 ? - ((-val + div - 1) / div) : (val ) / div; |
|
|
966 | } |
|
|
967 | template<typename T> |
|
|
968 | static inline T ecb_div_ru (T val, T div) |
|
|
969 | { |
|
|
970 | return val < 0 ? - ((-val ) / div) : (val + div - 1) / div; |
|
|
971 | } |
|
|
972 | #else |
|
|
973 | #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div)) |
|
|
974 | #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div)) |
|
|
975 | #endif |
|
|
976 | |
|
|
977 | #if ecb_cplusplus_does_not_suck |
|
|
978 | /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ |
|
|
979 | template<typename T, int N> |
|
|
980 | static inline int ecb_array_length (const T (&arr)[N]) |
|
|
981 | { |
|
|
982 | return N; |
|
|
983 | } |
|
|
984 | #else |
|
|
985 | #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) |
|
|
986 | #endif |
|
|
987 | |
|
|
988 | #endif |
|
|
989 | |
|
|
990 | /* ECB.H END */ |
|
|
991 | |
|
|
992 | #if ECB_MEMORY_FENCE_NEEDS_PTHREADS |
|
|
993 | /* if your architecture doesn't need memory fences, e.g. because it is |
|
|
994 | * single-cpu/core, or if you use libev in a project that doesn't use libev |
|
|
995 | * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling |
|
|
996 | * libev, in which cases the memory fences become nops. |
|
|
997 | * alternatively, you can remove this #error and link against libpthread, |
|
|
998 | * which will then provide the memory fences. |
|
|
999 | */ |
|
|
1000 | # error "memory fences not defined for your architecture, please report" |
|
|
1001 | #endif |
|
|
1002 | |
|
|
1003 | #ifndef ECB_MEMORY_FENCE |
|
|
1004 | # define ECB_MEMORY_FENCE do { } while (0) |
|
|
1005 | # define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE |
|
|
1006 | # define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE |
|
|
1007 | #endif |
|
|
1008 | |
|
|
1009 | #define expect_false(cond) ecb_expect_false (cond) |
|
|
1010 | #define expect_true(cond) ecb_expect_true (cond) |
|
|
1011 | #define noinline ecb_noinline |
|
|
1012 | |
490 | #define inline_size static inline |
1013 | #define inline_size ecb_inline |
491 | |
1014 | |
492 | #if EV_FEATURE_CODE |
1015 | #if EV_FEATURE_CODE |
493 | # define inline_speed static inline |
1016 | # define inline_speed ecb_inline |
494 | #else |
1017 | #else |
495 | # define inline_speed static noinline |
1018 | # define inline_speed static noinline |
496 | #endif |
1019 | #endif |
497 | |
1020 | |
498 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
1021 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
… | |
… | |
537 | # include "ev_win32.c" |
1060 | # include "ev_win32.c" |
538 | #endif |
1061 | #endif |
539 | |
1062 | |
540 | /*****************************************************************************/ |
1063 | /*****************************************************************************/ |
541 | |
1064 | |
|
|
1065 | /* define a suitable floor function (only used by periodics atm) */ |
|
|
1066 | |
|
|
1067 | #if EV_USE_FLOOR |
|
|
1068 | # include <math.h> |
|
|
1069 | # define ev_floor(v) floor (v) |
|
|
1070 | #else |
|
|
1071 | |
|
|
1072 | #include <float.h> |
|
|
1073 | |
|
|
1074 | /* a floor() replacement function, should be independent of ev_tstamp type */ |
|
|
1075 | static ev_tstamp noinline |
|
|
1076 | ev_floor (ev_tstamp v) |
|
|
1077 | { |
|
|
1078 | /* the choice of shift factor is not terribly important */ |
|
|
1079 | #if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ |
|
|
1080 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; |
|
|
1081 | #else |
|
|
1082 | const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; |
|
|
1083 | #endif |
|
|
1084 | |
|
|
1085 | /* argument too large for an unsigned long? */ |
|
|
1086 | if (expect_false (v >= shift)) |
|
|
1087 | { |
|
|
1088 | ev_tstamp f; |
|
|
1089 | |
|
|
1090 | if (v == v - 1.) |
|
|
1091 | return v; /* very large number */ |
|
|
1092 | |
|
|
1093 | f = shift * ev_floor (v * (1. / shift)); |
|
|
1094 | return f + ev_floor (v - f); |
|
|
1095 | } |
|
|
1096 | |
|
|
1097 | /* special treatment for negative args? */ |
|
|
1098 | if (expect_false (v < 0.)) |
|
|
1099 | { |
|
|
1100 | ev_tstamp f = -ev_floor (-v); |
|
|
1101 | |
|
|
1102 | return f - (f == v ? 0 : 1); |
|
|
1103 | } |
|
|
1104 | |
|
|
1105 | /* fits into an unsigned long */ |
|
|
1106 | return (unsigned long)v; |
|
|
1107 | } |
|
|
1108 | |
|
|
1109 | #endif |
|
|
1110 | |
|
|
1111 | /*****************************************************************************/ |
|
|
1112 | |
|
|
1113 | #ifdef __linux |
|
|
1114 | # include <sys/utsname.h> |
|
|
1115 | #endif |
|
|
1116 | |
|
|
1117 | static unsigned int noinline ecb_cold |
|
|
1118 | ev_linux_version (void) |
|
|
1119 | { |
|
|
1120 | #ifdef __linux |
|
|
1121 | unsigned int v = 0; |
|
|
1122 | struct utsname buf; |
|
|
1123 | int i; |
|
|
1124 | char *p = buf.release; |
|
|
1125 | |
|
|
1126 | if (uname (&buf)) |
|
|
1127 | return 0; |
|
|
1128 | |
|
|
1129 | for (i = 3+1; --i; ) |
|
|
1130 | { |
|
|
1131 | unsigned int c = 0; |
|
|
1132 | |
|
|
1133 | for (;;) |
|
|
1134 | { |
|
|
1135 | if (*p >= '0' && *p <= '9') |
|
|
1136 | c = c * 10 + *p++ - '0'; |
|
|
1137 | else |
|
|
1138 | { |
|
|
1139 | p += *p == '.'; |
|
|
1140 | break; |
|
|
1141 | } |
|
|
1142 | } |
|
|
1143 | |
|
|
1144 | v = (v << 8) | c; |
|
|
1145 | } |
|
|
1146 | |
|
|
1147 | return v; |
|
|
1148 | #else |
|
|
1149 | return 0; |
|
|
1150 | #endif |
|
|
1151 | } |
|
|
1152 | |
|
|
1153 | /*****************************************************************************/ |
|
|
1154 | |
542 | #if EV_AVOID_STDIO |
1155 | #if EV_AVOID_STDIO |
543 | static void noinline |
1156 | static void noinline ecb_cold |
544 | ev_printerr (const char *msg) |
1157 | ev_printerr (const char *msg) |
545 | { |
1158 | { |
546 | write (STDERR_FILENO, msg, strlen (msg)); |
1159 | write (STDERR_FILENO, msg, strlen (msg)); |
547 | } |
1160 | } |
548 | #endif |
1161 | #endif |
549 | |
1162 | |
550 | static void (*syserr_cb)(const char *msg); |
1163 | static void (*syserr_cb)(const char *msg) EV_THROW; |
551 | |
1164 | |
552 | void |
1165 | void ecb_cold |
553 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
1166 | ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW |
554 | { |
1167 | { |
555 | syserr_cb = cb; |
1168 | syserr_cb = cb; |
556 | } |
1169 | } |
557 | |
1170 | |
558 | static void noinline |
1171 | static void noinline ecb_cold |
559 | ev_syserr (const char *msg) |
1172 | ev_syserr (const char *msg) |
560 | { |
1173 | { |
561 | if (!msg) |
1174 | if (!msg) |
562 | msg = "(libev) system error"; |
1175 | msg = "(libev) system error"; |
563 | |
1176 | |
564 | if (syserr_cb) |
1177 | if (syserr_cb) |
565 | syserr_cb (msg); |
1178 | syserr_cb (msg); |
566 | else |
1179 | else |
567 | { |
1180 | { |
568 | #if EV_AVOID_STDIO |
1181 | #if EV_AVOID_STDIO |
569 | const char *err = strerror (errno); |
|
|
570 | |
|
|
571 | ev_printerr (msg); |
1182 | ev_printerr (msg); |
572 | ev_printerr (": "); |
1183 | ev_printerr (": "); |
573 | ev_printerr (err); |
1184 | ev_printerr (strerror (errno)); |
574 | ev_printerr ("\n"); |
1185 | ev_printerr ("\n"); |
575 | #else |
1186 | #else |
576 | perror (msg); |
1187 | perror (msg); |
577 | #endif |
1188 | #endif |
578 | abort (); |
1189 | abort (); |
579 | } |
1190 | } |
580 | } |
1191 | } |
581 | |
1192 | |
582 | static void * |
1193 | static void * |
583 | ev_realloc_emul (void *ptr, long size) |
1194 | ev_realloc_emul (void *ptr, long size) EV_THROW |
584 | { |
1195 | { |
585 | #if __GLIBC__ |
|
|
586 | return realloc (ptr, size); |
|
|
587 | #else |
|
|
588 | /* some systems, notably openbsd and darwin, fail to properly |
1196 | /* some systems, notably openbsd and darwin, fail to properly |
589 | * implement realloc (x, 0) (as required by both ansi c-89 and |
1197 | * implement realloc (x, 0) (as required by both ansi c-89 and |
590 | * the single unix specification, so work around them here. |
1198 | * the single unix specification, so work around them here. |
|
|
1199 | * recently, also (at least) fedora and debian started breaking it, |
|
|
1200 | * despite documenting it otherwise. |
591 | */ |
1201 | */ |
592 | |
1202 | |
593 | if (size) |
1203 | if (size) |
594 | return realloc (ptr, size); |
1204 | return realloc (ptr, size); |
595 | |
1205 | |
596 | free (ptr); |
1206 | free (ptr); |
597 | return 0; |
1207 | return 0; |
598 | #endif |
|
|
599 | } |
1208 | } |
600 | |
1209 | |
601 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
1210 | static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; |
602 | |
1211 | |
603 | void |
1212 | void ecb_cold |
604 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
1213 | ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW |
605 | { |
1214 | { |
606 | alloc = cb; |
1215 | alloc = cb; |
607 | } |
1216 | } |
608 | |
1217 | |
609 | inline_speed void * |
1218 | inline_speed void * |
… | |
… | |
612 | ptr = alloc (ptr, size); |
1221 | ptr = alloc (ptr, size); |
613 | |
1222 | |
614 | if (!ptr && size) |
1223 | if (!ptr && size) |
615 | { |
1224 | { |
616 | #if EV_AVOID_STDIO |
1225 | #if EV_AVOID_STDIO |
617 | ev_printerr ("libev: memory allocation failed, aborting.\n"); |
1226 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
618 | #else |
1227 | #else |
619 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
1228 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
620 | #endif |
1229 | #endif |
621 | abort (); |
1230 | abort (); |
622 | } |
1231 | } |
623 | |
1232 | |
624 | return ptr; |
1233 | return ptr; |
… | |
… | |
641 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
1250 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
642 | unsigned char unused; |
1251 | unsigned char unused; |
643 | #if EV_USE_EPOLL |
1252 | #if EV_USE_EPOLL |
644 | unsigned int egen; /* generation counter to counter epoll bugs */ |
1253 | unsigned int egen; /* generation counter to counter epoll bugs */ |
645 | #endif |
1254 | #endif |
646 | #if EV_SELECT_IS_WINSOCKET |
1255 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
647 | SOCKET handle; |
1256 | SOCKET handle; |
|
|
1257 | #endif |
|
|
1258 | #if EV_USE_IOCP |
|
|
1259 | OVERLAPPED or, ow; |
648 | #endif |
1260 | #endif |
649 | } ANFD; |
1261 | } ANFD; |
650 | |
1262 | |
651 | /* stores the pending event set for a given watcher */ |
1263 | /* stores the pending event set for a given watcher */ |
652 | typedef struct |
1264 | typedef struct |
… | |
… | |
694 | #undef VAR |
1306 | #undef VAR |
695 | }; |
1307 | }; |
696 | #include "ev_wrap.h" |
1308 | #include "ev_wrap.h" |
697 | |
1309 | |
698 | static struct ev_loop default_loop_struct; |
1310 | static struct ev_loop default_loop_struct; |
699 | struct ev_loop *ev_default_loop_ptr; |
1311 | EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ |
700 | |
1312 | |
701 | #else |
1313 | #else |
702 | |
1314 | |
703 | ev_tstamp ev_rt_now; |
1315 | EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ |
704 | #define VAR(name,decl) static decl; |
1316 | #define VAR(name,decl) static decl; |
705 | #include "ev_vars.h" |
1317 | #include "ev_vars.h" |
706 | #undef VAR |
1318 | #undef VAR |
707 | |
1319 | |
708 | static int ev_default_loop_ptr; |
1320 | static int ev_default_loop_ptr; |
… | |
… | |
717 | # define EV_RELEASE_CB (void)0 |
1329 | # define EV_RELEASE_CB (void)0 |
718 | # define EV_ACQUIRE_CB (void)0 |
1330 | # define EV_ACQUIRE_CB (void)0 |
719 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
1331 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
720 | #endif |
1332 | #endif |
721 | |
1333 | |
722 | #define EVUNLOOP_RECURSE 0x80 |
1334 | #define EVBREAK_RECURSE 0x80 |
723 | |
1335 | |
724 | /*****************************************************************************/ |
1336 | /*****************************************************************************/ |
725 | |
1337 | |
726 | #ifndef EV_HAVE_EV_TIME |
1338 | #ifndef EV_HAVE_EV_TIME |
727 | ev_tstamp |
1339 | ev_tstamp |
728 | ev_time (void) |
1340 | ev_time (void) EV_THROW |
729 | { |
1341 | { |
730 | #if EV_USE_REALTIME |
1342 | #if EV_USE_REALTIME |
731 | if (expect_true (have_realtime)) |
1343 | if (expect_true (have_realtime)) |
732 | { |
1344 | { |
733 | struct timespec ts; |
1345 | struct timespec ts; |
… | |
… | |
757 | return ev_time (); |
1369 | return ev_time (); |
758 | } |
1370 | } |
759 | |
1371 | |
760 | #if EV_MULTIPLICITY |
1372 | #if EV_MULTIPLICITY |
761 | ev_tstamp |
1373 | ev_tstamp |
762 | ev_now (EV_P) |
1374 | ev_now (EV_P) EV_THROW |
763 | { |
1375 | { |
764 | return ev_rt_now; |
1376 | return ev_rt_now; |
765 | } |
1377 | } |
766 | #endif |
1378 | #endif |
767 | |
1379 | |
768 | void |
1380 | void |
769 | ev_sleep (ev_tstamp delay) |
1381 | ev_sleep (ev_tstamp delay) EV_THROW |
770 | { |
1382 | { |
771 | if (delay > 0.) |
1383 | if (delay > 0.) |
772 | { |
1384 | { |
773 | #if EV_USE_NANOSLEEP |
1385 | #if EV_USE_NANOSLEEP |
774 | struct timespec ts; |
1386 | struct timespec ts; |
775 | |
1387 | |
776 | EV_TS_SET (ts, delay); |
1388 | EV_TS_SET (ts, delay); |
777 | nanosleep (&ts, 0); |
1389 | nanosleep (&ts, 0); |
778 | #elif defined(_WIN32) |
1390 | #elif defined _WIN32 |
779 | Sleep ((unsigned long)(delay * 1e3)); |
1391 | Sleep ((unsigned long)(delay * 1e3)); |
780 | #else |
1392 | #else |
781 | struct timeval tv; |
1393 | struct timeval tv; |
782 | |
1394 | |
783 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
1395 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
784 | /* something not guaranteed by newer posix versions, but guaranteed */ |
1396 | /* something not guaranteed by newer posix versions, but guaranteed */ |
785 | /* by older ones */ |
1397 | /* by older ones */ |
786 | EV_TS_SET (tv, delay); |
1398 | EV_TV_SET (tv, delay); |
787 | select (0, 0, 0, 0, &tv); |
1399 | select (0, 0, 0, 0, &tv); |
788 | #endif |
1400 | #endif |
789 | } |
1401 | } |
790 | } |
1402 | } |
791 | |
1403 | |
… | |
… | |
802 | |
1414 | |
803 | do |
1415 | do |
804 | ncur <<= 1; |
1416 | ncur <<= 1; |
805 | while (cnt > ncur); |
1417 | while (cnt > ncur); |
806 | |
1418 | |
807 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ |
1419 | /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */ |
808 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
1420 | if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) |
809 | { |
1421 | { |
810 | ncur *= elem; |
1422 | ncur *= elem; |
811 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
1423 | ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); |
812 | ncur = ncur - sizeof (void *) * 4; |
1424 | ncur = ncur - sizeof (void *) * 4; |
… | |
… | |
814 | } |
1426 | } |
815 | |
1427 | |
816 | return ncur; |
1428 | return ncur; |
817 | } |
1429 | } |
818 | |
1430 | |
819 | static noinline void * |
1431 | static void * noinline ecb_cold |
820 | array_realloc (int elem, void *base, int *cur, int cnt) |
1432 | array_realloc (int elem, void *base, int *cur, int cnt) |
821 | { |
1433 | { |
822 | *cur = array_nextsize (elem, *cur, cnt); |
1434 | *cur = array_nextsize (elem, *cur, cnt); |
823 | return ev_realloc (base, elem * *cur); |
1435 | return ev_realloc (base, elem * *cur); |
824 | } |
1436 | } |
… | |
… | |
827 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
1439 | memset ((void *)(base), 0, sizeof (*(base)) * (count)) |
828 | |
1440 | |
829 | #define array_needsize(type,base,cur,cnt,init) \ |
1441 | #define array_needsize(type,base,cur,cnt,init) \ |
830 | if (expect_false ((cnt) > (cur))) \ |
1442 | if (expect_false ((cnt) > (cur))) \ |
831 | { \ |
1443 | { \ |
832 | int ocur_ = (cur); \ |
1444 | int ecb_unused ocur_ = (cur); \ |
833 | (base) = (type *)array_realloc \ |
1445 | (base) = (type *)array_realloc \ |
834 | (sizeof (type), (base), &(cur), (cnt)); \ |
1446 | (sizeof (type), (base), &(cur), (cnt)); \ |
835 | init ((base) + (ocur_), (cur) - ocur_); \ |
1447 | init ((base) + (ocur_), (cur) - ocur_); \ |
836 | } |
1448 | } |
837 | |
1449 | |
… | |
… | |
855 | pendingcb (EV_P_ ev_prepare *w, int revents) |
1467 | pendingcb (EV_P_ ev_prepare *w, int revents) |
856 | { |
1468 | { |
857 | } |
1469 | } |
858 | |
1470 | |
859 | void noinline |
1471 | void noinline |
860 | ev_feed_event (EV_P_ void *w, int revents) |
1472 | ev_feed_event (EV_P_ void *w, int revents) EV_THROW |
861 | { |
1473 | { |
862 | W w_ = (W)w; |
1474 | W w_ = (W)w; |
863 | int pri = ABSPRI (w_); |
1475 | int pri = ABSPRI (w_); |
864 | |
1476 | |
865 | if (expect_false (w_->pending)) |
1477 | if (expect_false (w_->pending)) |
… | |
… | |
869 | w_->pending = ++pendingcnt [pri]; |
1481 | w_->pending = ++pendingcnt [pri]; |
870 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
1482 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
871 | pendings [pri][w_->pending - 1].w = w_; |
1483 | pendings [pri][w_->pending - 1].w = w_; |
872 | pendings [pri][w_->pending - 1].events = revents; |
1484 | pendings [pri][w_->pending - 1].events = revents; |
873 | } |
1485 | } |
|
|
1486 | |
|
|
1487 | pendingpri = NUMPRI - 1; |
874 | } |
1488 | } |
875 | |
1489 | |
876 | inline_speed void |
1490 | inline_speed void |
877 | feed_reverse (EV_P_ W w) |
1491 | feed_reverse (EV_P_ W w) |
878 | { |
1492 | { |
… | |
… | |
924 | if (expect_true (!anfd->reify)) |
1538 | if (expect_true (!anfd->reify)) |
925 | fd_event_nocheck (EV_A_ fd, revents); |
1539 | fd_event_nocheck (EV_A_ fd, revents); |
926 | } |
1540 | } |
927 | |
1541 | |
928 | void |
1542 | void |
929 | ev_feed_fd_event (EV_P_ int fd, int revents) |
1543 | ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW |
930 | { |
1544 | { |
931 | if (fd >= 0 && fd < anfdmax) |
1545 | if (fd >= 0 && fd < anfdmax) |
932 | fd_event_nocheck (EV_A_ fd, revents); |
1546 | fd_event_nocheck (EV_A_ fd, revents); |
933 | } |
1547 | } |
934 | |
1548 | |
… | |
… | |
937 | inline_size void |
1551 | inline_size void |
938 | fd_reify (EV_P) |
1552 | fd_reify (EV_P) |
939 | { |
1553 | { |
940 | int i; |
1554 | int i; |
941 | |
1555 | |
|
|
1556 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
|
|
1557 | for (i = 0; i < fdchangecnt; ++i) |
|
|
1558 | { |
|
|
1559 | int fd = fdchanges [i]; |
|
|
1560 | ANFD *anfd = anfds + fd; |
|
|
1561 | |
|
|
1562 | if (anfd->reify & EV__IOFDSET && anfd->head) |
|
|
1563 | { |
|
|
1564 | SOCKET handle = EV_FD_TO_WIN32_HANDLE (fd); |
|
|
1565 | |
|
|
1566 | if (handle != anfd->handle) |
|
|
1567 | { |
|
|
1568 | unsigned long arg; |
|
|
1569 | |
|
|
1570 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0)); |
|
|
1571 | |
|
|
1572 | /* handle changed, but fd didn't - we need to do it in two steps */ |
|
|
1573 | backend_modify (EV_A_ fd, anfd->events, 0); |
|
|
1574 | anfd->events = 0; |
|
|
1575 | anfd->handle = handle; |
|
|
1576 | } |
|
|
1577 | } |
|
|
1578 | } |
|
|
1579 | #endif |
|
|
1580 | |
942 | for (i = 0; i < fdchangecnt; ++i) |
1581 | for (i = 0; i < fdchangecnt; ++i) |
943 | { |
1582 | { |
944 | int fd = fdchanges [i]; |
1583 | int fd = fdchanges [i]; |
945 | ANFD *anfd = anfds + fd; |
1584 | ANFD *anfd = anfds + fd; |
946 | ev_io *w; |
1585 | ev_io *w; |
947 | |
1586 | |
948 | unsigned char events = 0; |
1587 | unsigned char o_events = anfd->events; |
|
|
1588 | unsigned char o_reify = anfd->reify; |
949 | |
1589 | |
950 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
1590 | anfd->reify = 0; |
951 | events |= (unsigned char)w->events; |
|
|
952 | |
1591 | |
953 | #if EV_SELECT_IS_WINSOCKET |
1592 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
954 | if (events) |
|
|
955 | { |
1593 | { |
956 | unsigned long arg; |
1594 | anfd->events = 0; |
957 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
1595 | |
958 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
1596 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
|
|
1597 | anfd->events |= (unsigned char)w->events; |
|
|
1598 | |
|
|
1599 | if (o_events != anfd->events) |
|
|
1600 | o_reify = EV__IOFDSET; /* actually |= */ |
959 | } |
1601 | } |
960 | #endif |
|
|
961 | |
1602 | |
962 | { |
1603 | if (o_reify & EV__IOFDSET) |
963 | unsigned char o_events = anfd->events; |
|
|
964 | unsigned char o_reify = anfd->reify; |
|
|
965 | |
|
|
966 | anfd->reify = 0; |
|
|
967 | anfd->events = events; |
|
|
968 | |
|
|
969 | if (o_events != events || o_reify & EV__IOFDSET) |
|
|
970 | backend_modify (EV_A_ fd, o_events, events); |
1604 | backend_modify (EV_A_ fd, o_events, anfd->events); |
971 | } |
|
|
972 | } |
1605 | } |
973 | |
1606 | |
974 | fdchangecnt = 0; |
1607 | fdchangecnt = 0; |
975 | } |
1608 | } |
976 | |
1609 | |
… | |
… | |
988 | fdchanges [fdchangecnt - 1] = fd; |
1621 | fdchanges [fdchangecnt - 1] = fd; |
989 | } |
1622 | } |
990 | } |
1623 | } |
991 | |
1624 | |
992 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
1625 | /* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ |
993 | inline_speed void |
1626 | inline_speed void ecb_cold |
994 | fd_kill (EV_P_ int fd) |
1627 | fd_kill (EV_P_ int fd) |
995 | { |
1628 | { |
996 | ev_io *w; |
1629 | ev_io *w; |
997 | |
1630 | |
998 | while ((w = (ev_io *)anfds [fd].head)) |
1631 | while ((w = (ev_io *)anfds [fd].head)) |
… | |
… | |
1001 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1634 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
1002 | } |
1635 | } |
1003 | } |
1636 | } |
1004 | |
1637 | |
1005 | /* check whether the given fd is actually valid, for error recovery */ |
1638 | /* check whether the given fd is actually valid, for error recovery */ |
1006 | inline_size int |
1639 | inline_size int ecb_cold |
1007 | fd_valid (int fd) |
1640 | fd_valid (int fd) |
1008 | { |
1641 | { |
1009 | #ifdef _WIN32 |
1642 | #ifdef _WIN32 |
1010 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1643 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
1011 | #else |
1644 | #else |
1012 | return fcntl (fd, F_GETFD) != -1; |
1645 | return fcntl (fd, F_GETFD) != -1; |
1013 | #endif |
1646 | #endif |
1014 | } |
1647 | } |
1015 | |
1648 | |
1016 | /* called on EBADF to verify fds */ |
1649 | /* called on EBADF to verify fds */ |
1017 | static void noinline |
1650 | static void noinline ecb_cold |
1018 | fd_ebadf (EV_P) |
1651 | fd_ebadf (EV_P) |
1019 | { |
1652 | { |
1020 | int fd; |
1653 | int fd; |
1021 | |
1654 | |
1022 | for (fd = 0; fd < anfdmax; ++fd) |
1655 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
1024 | if (!fd_valid (fd) && errno == EBADF) |
1657 | if (!fd_valid (fd) && errno == EBADF) |
1025 | fd_kill (EV_A_ fd); |
1658 | fd_kill (EV_A_ fd); |
1026 | } |
1659 | } |
1027 | |
1660 | |
1028 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1661 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
1029 | static void noinline |
1662 | static void noinline ecb_cold |
1030 | fd_enomem (EV_P) |
1663 | fd_enomem (EV_P) |
1031 | { |
1664 | { |
1032 | int fd; |
1665 | int fd; |
1033 | |
1666 | |
1034 | for (fd = anfdmax; fd--; ) |
1667 | for (fd = anfdmax; fd--; ) |
… | |
… | |
1229 | |
1862 | |
1230 | /*****************************************************************************/ |
1863 | /*****************************************************************************/ |
1231 | |
1864 | |
1232 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1865 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1233 | |
1866 | |
1234 | static void noinline |
1867 | static void noinline ecb_cold |
1235 | evpipe_init (EV_P) |
1868 | evpipe_init (EV_P) |
1236 | { |
1869 | { |
1237 | if (!ev_is_active (&pipe_w)) |
1870 | if (!ev_is_active (&pipe_w)) |
1238 | { |
1871 | { |
|
|
1872 | int fds [2]; |
|
|
1873 | |
1239 | # if EV_USE_EVENTFD |
1874 | # if EV_USE_EVENTFD |
|
|
1875 | fds [0] = -1; |
1240 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1876 | fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
1241 | if (evfd < 0 && errno == EINVAL) |
1877 | if (fds [1] < 0 && errno == EINVAL) |
1242 | evfd = eventfd (0, 0); |
1878 | fds [1] = eventfd (0, 0); |
1243 | |
1879 | |
1244 | if (evfd >= 0) |
1880 | if (fds [1] < 0) |
|
|
1881 | # endif |
1245 | { |
1882 | { |
|
|
1883 | while (pipe (fds)) |
|
|
1884 | ev_syserr ("(libev) error creating signal/async pipe"); |
|
|
1885 | |
|
|
1886 | fd_intern (fds [0]); |
|
|
1887 | } |
|
|
1888 | |
|
|
1889 | fd_intern (fds [1]); |
|
|
1890 | |
1246 | evpipe [0] = -1; |
1891 | evpipe [0] = fds [0]; |
1247 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1892 | |
1248 | ev_io_set (&pipe_w, evfd, EV_READ); |
1893 | if (evpipe [1] < 0) |
|
|
1894 | evpipe [1] = fds [1]; /* first call, set write fd */ |
|
|
1895 | else |
|
|
1896 | { |
|
|
1897 | /* on subsequent calls, do not change evpipe [1] */ |
|
|
1898 | /* so that evpipe_write can always rely on its value. */ |
|
|
1899 | /* this branch does not do anything sensible on windows, */ |
|
|
1900 | /* so must not be executed on windows */ |
|
|
1901 | |
|
|
1902 | dup2 (fds [1], evpipe [1]); |
|
|
1903 | close (fds [1]); |
|
|
1904 | } |
|
|
1905 | |
|
|
1906 | ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ); |
|
|
1907 | ev_io_start (EV_A_ &pipe_w); |
|
|
1908 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1909 | } |
|
|
1910 | } |
|
|
1911 | |
|
|
1912 | inline_speed void |
|
|
1913 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1914 | { |
|
|
1915 | ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ |
|
|
1916 | |
|
|
1917 | if (expect_true (*flag)) |
|
|
1918 | return; |
|
|
1919 | |
|
|
1920 | *flag = 1; |
|
|
1921 | ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ |
|
|
1922 | |
|
|
1923 | pipe_write_skipped = 1; |
|
|
1924 | |
|
|
1925 | ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */ |
|
|
1926 | |
|
|
1927 | if (pipe_write_wanted) |
|
|
1928 | { |
|
|
1929 | int old_errno; |
|
|
1930 | |
|
|
1931 | pipe_write_skipped = 0; |
|
|
1932 | ECB_MEMORY_FENCE_RELEASE; |
|
|
1933 | |
|
|
1934 | old_errno = errno; /* save errno because write will clobber it */ |
|
|
1935 | |
|
|
1936 | #if EV_USE_EVENTFD |
|
|
1937 | if (evpipe [0] < 0) |
|
|
1938 | { |
|
|
1939 | uint64_t counter = 1; |
|
|
1940 | write (evpipe [1], &counter, sizeof (uint64_t)); |
1249 | } |
1941 | } |
1250 | else |
1942 | else |
1251 | # endif |
1943 | #endif |
1252 | { |
1944 | { |
1253 | while (pipe (evpipe)) |
1945 | #ifdef _WIN32 |
1254 | ev_syserr ("(libev) error creating signal/async pipe"); |
1946 | WSABUF buf; |
1255 | |
1947 | DWORD sent; |
1256 | fd_intern (evpipe [0]); |
1948 | buf.buf = &buf; |
1257 | fd_intern (evpipe [1]); |
1949 | buf.len = 1; |
1258 | ev_io_set (&pipe_w, evpipe [0], EV_READ); |
1950 | WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); |
|
|
1951 | #else |
|
|
1952 | write (evpipe [1], &(evpipe [1]), 1); |
|
|
1953 | #endif |
1259 | } |
1954 | } |
1260 | |
|
|
1261 | ev_io_start (EV_A_ &pipe_w); |
|
|
1262 | ev_unref (EV_A); /* watcher should not keep loop alive */ |
|
|
1263 | } |
|
|
1264 | } |
|
|
1265 | |
|
|
1266 | inline_size void |
|
|
1267 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
|
|
1268 | { |
|
|
1269 | if (!*flag) |
|
|
1270 | { |
|
|
1271 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1272 | char dummy; |
|
|
1273 | |
|
|
1274 | *flag = 1; |
|
|
1275 | |
|
|
1276 | #if EV_USE_EVENTFD |
|
|
1277 | if (evfd >= 0) |
|
|
1278 | { |
|
|
1279 | uint64_t counter = 1; |
|
|
1280 | write (evfd, &counter, sizeof (uint64_t)); |
|
|
1281 | } |
|
|
1282 | else |
|
|
1283 | #endif |
|
|
1284 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1285 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1286 | /* so when you think this write should be a send instead, please find out */ |
|
|
1287 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1288 | /* tell me. thank you. */ |
|
|
1289 | write (evpipe [1], &dummy, 1); |
|
|
1290 | |
1955 | |
1291 | errno = old_errno; |
1956 | errno = old_errno; |
1292 | } |
1957 | } |
1293 | } |
1958 | } |
1294 | |
1959 | |
… | |
… | |
1297 | static void |
1962 | static void |
1298 | pipecb (EV_P_ ev_io *iow, int revents) |
1963 | pipecb (EV_P_ ev_io *iow, int revents) |
1299 | { |
1964 | { |
1300 | int i; |
1965 | int i; |
1301 | |
1966 | |
|
|
1967 | if (revents & EV_READ) |
|
|
1968 | { |
1302 | #if EV_USE_EVENTFD |
1969 | #if EV_USE_EVENTFD |
1303 | if (evfd >= 0) |
1970 | if (evpipe [0] < 0) |
1304 | { |
1971 | { |
1305 | uint64_t counter; |
1972 | uint64_t counter; |
1306 | read (evfd, &counter, sizeof (uint64_t)); |
1973 | read (evpipe [1], &counter, sizeof (uint64_t)); |
1307 | } |
1974 | } |
1308 | else |
1975 | else |
1309 | #endif |
1976 | #endif |
1310 | { |
1977 | { |
1311 | char dummy; |
1978 | char dummy[4]; |
1312 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
1979 | #ifdef _WIN32 |
|
|
1980 | WSABUF buf; |
|
|
1981 | DWORD recvd; |
|
|
1982 | DWORD flags = 0; |
|
|
1983 | buf.buf = dummy; |
|
|
1984 | buf.len = sizeof (dummy); |
|
|
1985 | WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0); |
|
|
1986 | #else |
1313 | read (evpipe [0], &dummy, 1); |
1987 | read (evpipe [0], &dummy, sizeof (dummy)); |
|
|
1988 | #endif |
|
|
1989 | } |
1314 | } |
1990 | } |
1315 | |
1991 | |
|
|
1992 | pipe_write_skipped = 0; |
|
|
1993 | |
|
|
1994 | ECB_MEMORY_FENCE; /* push out skipped, acquire flags */ |
|
|
1995 | |
|
|
1996 | #if EV_SIGNAL_ENABLE |
1316 | if (sig_pending) |
1997 | if (sig_pending) |
1317 | { |
1998 | { |
1318 | sig_pending = 0; |
1999 | sig_pending = 0; |
|
|
2000 | |
|
|
2001 | ECB_MEMORY_FENCE; |
1319 | |
2002 | |
1320 | for (i = EV_NSIG - 1; i--; ) |
2003 | for (i = EV_NSIG - 1; i--; ) |
1321 | if (expect_false (signals [i].pending)) |
2004 | if (expect_false (signals [i].pending)) |
1322 | ev_feed_signal_event (EV_A_ i + 1); |
2005 | ev_feed_signal_event (EV_A_ i + 1); |
1323 | } |
2006 | } |
|
|
2007 | #endif |
1324 | |
2008 | |
1325 | #if EV_ASYNC_ENABLE |
2009 | #if EV_ASYNC_ENABLE |
1326 | if (async_pending) |
2010 | if (async_pending) |
1327 | { |
2011 | { |
1328 | async_pending = 0; |
2012 | async_pending = 0; |
|
|
2013 | |
|
|
2014 | ECB_MEMORY_FENCE; |
1329 | |
2015 | |
1330 | for (i = asynccnt; i--; ) |
2016 | for (i = asynccnt; i--; ) |
1331 | if (asyncs [i]->sent) |
2017 | if (asyncs [i]->sent) |
1332 | { |
2018 | { |
1333 | asyncs [i]->sent = 0; |
2019 | asyncs [i]->sent = 0; |
|
|
2020 | ECB_MEMORY_FENCE_RELEASE; |
1334 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
2021 | ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); |
1335 | } |
2022 | } |
1336 | } |
2023 | } |
1337 | #endif |
2024 | #endif |
1338 | } |
2025 | } |
1339 | |
2026 | |
1340 | /*****************************************************************************/ |
2027 | /*****************************************************************************/ |
1341 | |
2028 | |
|
|
2029 | void |
|
|
2030 | ev_feed_signal (int signum) EV_THROW |
|
|
2031 | { |
|
|
2032 | #if EV_MULTIPLICITY |
|
|
2033 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
2034 | EV_P = signals [signum - 1].loop; |
|
|
2035 | |
|
|
2036 | if (!EV_A) |
|
|
2037 | return; |
|
|
2038 | #endif |
|
|
2039 | |
|
|
2040 | signals [signum - 1].pending = 1; |
|
|
2041 | evpipe_write (EV_A_ &sig_pending); |
|
|
2042 | } |
|
|
2043 | |
1342 | static void |
2044 | static void |
1343 | ev_sighandler (int signum) |
2045 | ev_sighandler (int signum) |
1344 | { |
2046 | { |
1345 | #if EV_MULTIPLICITY |
|
|
1346 | EV_P = signals [signum - 1].loop; |
|
|
1347 | #endif |
|
|
1348 | |
|
|
1349 | #ifdef _WIN32 |
2047 | #ifdef _WIN32 |
1350 | signal (signum, ev_sighandler); |
2048 | signal (signum, ev_sighandler); |
1351 | #endif |
2049 | #endif |
1352 | |
2050 | |
1353 | signals [signum - 1].pending = 1; |
2051 | ev_feed_signal (signum); |
1354 | evpipe_write (EV_A_ &sig_pending); |
|
|
1355 | } |
2052 | } |
1356 | |
2053 | |
1357 | void noinline |
2054 | void noinline |
1358 | ev_feed_signal_event (EV_P_ int signum) |
2055 | ev_feed_signal_event (EV_P_ int signum) EV_THROW |
1359 | { |
2056 | { |
1360 | WL w; |
2057 | WL w; |
1361 | |
2058 | |
1362 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
2059 | if (expect_false (signum <= 0 || signum >= EV_NSIG)) |
1363 | return; |
2060 | return; |
1364 | |
2061 | |
1365 | --signum; |
2062 | --signum; |
1366 | |
2063 | |
1367 | #if EV_MULTIPLICITY |
2064 | #if EV_MULTIPLICITY |
… | |
… | |
1371 | if (expect_false (signals [signum].loop != EV_A)) |
2068 | if (expect_false (signals [signum].loop != EV_A)) |
1372 | return; |
2069 | return; |
1373 | #endif |
2070 | #endif |
1374 | |
2071 | |
1375 | signals [signum].pending = 0; |
2072 | signals [signum].pending = 0; |
|
|
2073 | ECB_MEMORY_FENCE_RELEASE; |
1376 | |
2074 | |
1377 | for (w = signals [signum].head; w; w = w->next) |
2075 | for (w = signals [signum].head; w; w = w->next) |
1378 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
2076 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1379 | } |
2077 | } |
1380 | |
2078 | |
… | |
… | |
1459 | |
2157 | |
1460 | #endif |
2158 | #endif |
1461 | |
2159 | |
1462 | /*****************************************************************************/ |
2160 | /*****************************************************************************/ |
1463 | |
2161 | |
|
|
2162 | #if EV_USE_IOCP |
|
|
2163 | # include "ev_iocp.c" |
|
|
2164 | #endif |
1464 | #if EV_USE_PORT |
2165 | #if EV_USE_PORT |
1465 | # include "ev_port.c" |
2166 | # include "ev_port.c" |
1466 | #endif |
2167 | #endif |
1467 | #if EV_USE_KQUEUE |
2168 | #if EV_USE_KQUEUE |
1468 | # include "ev_kqueue.c" |
2169 | # include "ev_kqueue.c" |
… | |
… | |
1475 | #endif |
2176 | #endif |
1476 | #if EV_USE_SELECT |
2177 | #if EV_USE_SELECT |
1477 | # include "ev_select.c" |
2178 | # include "ev_select.c" |
1478 | #endif |
2179 | #endif |
1479 | |
2180 | |
1480 | int |
2181 | int ecb_cold |
1481 | ev_version_major (void) |
2182 | ev_version_major (void) EV_THROW |
1482 | { |
2183 | { |
1483 | return EV_VERSION_MAJOR; |
2184 | return EV_VERSION_MAJOR; |
1484 | } |
2185 | } |
1485 | |
2186 | |
1486 | int |
2187 | int ecb_cold |
1487 | ev_version_minor (void) |
2188 | ev_version_minor (void) EV_THROW |
1488 | { |
2189 | { |
1489 | return EV_VERSION_MINOR; |
2190 | return EV_VERSION_MINOR; |
1490 | } |
2191 | } |
1491 | |
2192 | |
1492 | /* return true if we are running with elevated privileges and should ignore env variables */ |
2193 | /* return true if we are running with elevated privileges and should ignore env variables */ |
1493 | int inline_size |
2194 | int inline_size ecb_cold |
1494 | enable_secure (void) |
2195 | enable_secure (void) |
1495 | { |
2196 | { |
1496 | #ifdef _WIN32 |
2197 | #ifdef _WIN32 |
1497 | return 0; |
2198 | return 0; |
1498 | #else |
2199 | #else |
1499 | return getuid () != geteuid () |
2200 | return getuid () != geteuid () |
1500 | || getgid () != getegid (); |
2201 | || getgid () != getegid (); |
1501 | #endif |
2202 | #endif |
1502 | } |
2203 | } |
1503 | |
2204 | |
1504 | unsigned int |
2205 | unsigned int ecb_cold |
1505 | ev_supported_backends (void) |
2206 | ev_supported_backends (void) EV_THROW |
1506 | { |
2207 | { |
1507 | unsigned int flags = 0; |
2208 | unsigned int flags = 0; |
1508 | |
2209 | |
1509 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
2210 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
1510 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
2211 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
… | |
… | |
1513 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
2214 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
1514 | |
2215 | |
1515 | return flags; |
2216 | return flags; |
1516 | } |
2217 | } |
1517 | |
2218 | |
1518 | unsigned int |
2219 | unsigned int ecb_cold |
1519 | ev_recommended_backends (void) |
2220 | ev_recommended_backends (void) EV_THROW |
1520 | { |
2221 | { |
1521 | unsigned int flags = ev_supported_backends (); |
2222 | unsigned int flags = ev_supported_backends (); |
1522 | |
2223 | |
1523 | #ifndef __NetBSD__ |
2224 | #ifndef __NetBSD__ |
1524 | /* kqueue is borked on everything but netbsd apparently */ |
2225 | /* kqueue is borked on everything but netbsd apparently */ |
… | |
… | |
1535 | #endif |
2236 | #endif |
1536 | |
2237 | |
1537 | return flags; |
2238 | return flags; |
1538 | } |
2239 | } |
1539 | |
2240 | |
|
|
2241 | unsigned int ecb_cold |
|
|
2242 | ev_embeddable_backends (void) EV_THROW |
|
|
2243 | { |
|
|
2244 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
|
|
2245 | |
|
|
2246 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
2247 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
|
|
2248 | flags &= ~EVBACKEND_EPOLL; |
|
|
2249 | |
|
|
2250 | return flags; |
|
|
2251 | } |
|
|
2252 | |
1540 | unsigned int |
2253 | unsigned int |
1541 | ev_embeddable_backends (void) |
|
|
1542 | { |
|
|
1543 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
|
|
1544 | |
|
|
1545 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
|
|
1546 | /* please fix it and tell me how to detect the fix */ |
|
|
1547 | flags &= ~EVBACKEND_EPOLL; |
|
|
1548 | |
|
|
1549 | return flags; |
|
|
1550 | } |
|
|
1551 | |
|
|
1552 | unsigned int |
|
|
1553 | ev_backend (EV_P) |
2254 | ev_backend (EV_P) EV_THROW |
1554 | { |
2255 | { |
1555 | return backend; |
2256 | return backend; |
1556 | } |
2257 | } |
1557 | |
2258 | |
1558 | #if EV_FEATURE_API |
2259 | #if EV_FEATURE_API |
1559 | unsigned int |
2260 | unsigned int |
1560 | ev_iteration (EV_P) |
2261 | ev_iteration (EV_P) EV_THROW |
1561 | { |
2262 | { |
1562 | return loop_count; |
2263 | return loop_count; |
1563 | } |
2264 | } |
1564 | |
2265 | |
1565 | unsigned int |
2266 | unsigned int |
1566 | ev_depth (EV_P) |
2267 | ev_depth (EV_P) EV_THROW |
1567 | { |
2268 | { |
1568 | return loop_depth; |
2269 | return loop_depth; |
1569 | } |
2270 | } |
1570 | |
2271 | |
1571 | void |
2272 | void |
1572 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) |
2273 | ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1573 | { |
2274 | { |
1574 | io_blocktime = interval; |
2275 | io_blocktime = interval; |
1575 | } |
2276 | } |
1576 | |
2277 | |
1577 | void |
2278 | void |
1578 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
2279 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW |
1579 | { |
2280 | { |
1580 | timeout_blocktime = interval; |
2281 | timeout_blocktime = interval; |
1581 | } |
2282 | } |
1582 | |
2283 | |
1583 | void |
2284 | void |
1584 | ev_set_userdata (EV_P_ void *data) |
2285 | ev_set_userdata (EV_P_ void *data) EV_THROW |
1585 | { |
2286 | { |
1586 | userdata = data; |
2287 | userdata = data; |
1587 | } |
2288 | } |
1588 | |
2289 | |
1589 | void * |
2290 | void * |
1590 | ev_userdata (EV_P) |
2291 | ev_userdata (EV_P) EV_THROW |
1591 | { |
2292 | { |
1592 | return userdata; |
2293 | return userdata; |
1593 | } |
2294 | } |
1594 | |
2295 | |
|
|
2296 | void |
1595 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
2297 | ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) EV_THROW |
1596 | { |
2298 | { |
1597 | invoke_cb = invoke_pending_cb; |
2299 | invoke_cb = invoke_pending_cb; |
1598 | } |
2300 | } |
1599 | |
2301 | |
|
|
2302 | void |
1600 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
2303 | ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW |
1601 | { |
2304 | { |
1602 | release_cb = release; |
2305 | release_cb = release; |
1603 | acquire_cb = acquire; |
2306 | acquire_cb = acquire; |
1604 | } |
2307 | } |
1605 | #endif |
2308 | #endif |
1606 | |
2309 | |
1607 | /* initialise a loop structure, must be zero-initialised */ |
2310 | /* initialise a loop structure, must be zero-initialised */ |
1608 | static void noinline |
2311 | static void noinline ecb_cold |
1609 | loop_init (EV_P_ unsigned int flags) |
2312 | loop_init (EV_P_ unsigned int flags) EV_THROW |
1610 | { |
2313 | { |
1611 | if (!backend) |
2314 | if (!backend) |
1612 | { |
2315 | { |
|
|
2316 | origflags = flags; |
|
|
2317 | |
1613 | #if EV_USE_REALTIME |
2318 | #if EV_USE_REALTIME |
1614 | if (!have_realtime) |
2319 | if (!have_realtime) |
1615 | { |
2320 | { |
1616 | struct timespec ts; |
2321 | struct timespec ts; |
1617 | |
2322 | |
… | |
… | |
1639 | if (!(flags & EVFLAG_NOENV) |
2344 | if (!(flags & EVFLAG_NOENV) |
1640 | && !enable_secure () |
2345 | && !enable_secure () |
1641 | && getenv ("LIBEV_FLAGS")) |
2346 | && getenv ("LIBEV_FLAGS")) |
1642 | flags = atoi (getenv ("LIBEV_FLAGS")); |
2347 | flags = atoi (getenv ("LIBEV_FLAGS")); |
1643 | |
2348 | |
1644 | ev_rt_now = ev_time (); |
2349 | ev_rt_now = ev_time (); |
1645 | mn_now = get_clock (); |
2350 | mn_now = get_clock (); |
1646 | now_floor = mn_now; |
2351 | now_floor = mn_now; |
1647 | rtmn_diff = ev_rt_now - mn_now; |
2352 | rtmn_diff = ev_rt_now - mn_now; |
1648 | #if EV_FEATURE_API |
2353 | #if EV_FEATURE_API |
1649 | invoke_cb = ev_invoke_pending; |
2354 | invoke_cb = ev_invoke_pending; |
1650 | #endif |
2355 | #endif |
1651 | |
2356 | |
1652 | io_blocktime = 0.; |
2357 | io_blocktime = 0.; |
1653 | timeout_blocktime = 0.; |
2358 | timeout_blocktime = 0.; |
1654 | backend = 0; |
2359 | backend = 0; |
1655 | backend_fd = -1; |
2360 | backend_fd = -1; |
1656 | sig_pending = 0; |
2361 | sig_pending = 0; |
1657 | #if EV_ASYNC_ENABLE |
2362 | #if EV_ASYNC_ENABLE |
1658 | async_pending = 0; |
2363 | async_pending = 0; |
1659 | #endif |
2364 | #endif |
|
|
2365 | pipe_write_skipped = 0; |
|
|
2366 | pipe_write_wanted = 0; |
|
|
2367 | evpipe [0] = -1; |
|
|
2368 | evpipe [1] = -1; |
1660 | #if EV_USE_INOTIFY |
2369 | #if EV_USE_INOTIFY |
1661 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
2370 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1662 | #endif |
2371 | #endif |
1663 | #if EV_USE_SIGNALFD |
2372 | #if EV_USE_SIGNALFD |
1664 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
2373 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1665 | #endif |
2374 | #endif |
1666 | |
2375 | |
1667 | if (!(flags & 0x0000ffffU)) |
2376 | if (!(flags & EVBACKEND_MASK)) |
1668 | flags |= ev_recommended_backends (); |
2377 | flags |= ev_recommended_backends (); |
1669 | |
2378 | |
|
|
2379 | #if EV_USE_IOCP |
|
|
2380 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
2381 | #endif |
1670 | #if EV_USE_PORT |
2382 | #if EV_USE_PORT |
1671 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
2383 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1672 | #endif |
2384 | #endif |
1673 | #if EV_USE_KQUEUE |
2385 | #if EV_USE_KQUEUE |
1674 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
2386 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
1691 | #endif |
2403 | #endif |
1692 | } |
2404 | } |
1693 | } |
2405 | } |
1694 | |
2406 | |
1695 | /* free up a loop structure */ |
2407 | /* free up a loop structure */ |
1696 | static void noinline |
2408 | void ecb_cold |
1697 | loop_destroy (EV_P) |
2409 | ev_loop_destroy (EV_P) |
1698 | { |
2410 | { |
1699 | int i; |
2411 | int i; |
|
|
2412 | |
|
|
2413 | #if EV_MULTIPLICITY |
|
|
2414 | /* mimic free (0) */ |
|
|
2415 | if (!EV_A) |
|
|
2416 | return; |
|
|
2417 | #endif |
|
|
2418 | |
|
|
2419 | #if EV_CLEANUP_ENABLE |
|
|
2420 | /* queue cleanup watchers (and execute them) */ |
|
|
2421 | if (expect_false (cleanupcnt)) |
|
|
2422 | { |
|
|
2423 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
2424 | EV_INVOKE_PENDING; |
|
|
2425 | } |
|
|
2426 | #endif |
|
|
2427 | |
|
|
2428 | #if EV_CHILD_ENABLE |
|
|
2429 | if (ev_is_default_loop (EV_A) && ev_is_active (&childev)) |
|
|
2430 | { |
|
|
2431 | ev_ref (EV_A); /* child watcher */ |
|
|
2432 | ev_signal_stop (EV_A_ &childev); |
|
|
2433 | } |
|
|
2434 | #endif |
1700 | |
2435 | |
1701 | if (ev_is_active (&pipe_w)) |
2436 | if (ev_is_active (&pipe_w)) |
1702 | { |
2437 | { |
1703 | /*ev_ref (EV_A);*/ |
2438 | /*ev_ref (EV_A);*/ |
1704 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
2439 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1705 | |
2440 | |
1706 | #if EV_USE_EVENTFD |
|
|
1707 | if (evfd >= 0) |
|
|
1708 | close (evfd); |
|
|
1709 | #endif |
|
|
1710 | |
|
|
1711 | if (evpipe [0] >= 0) |
|
|
1712 | { |
|
|
1713 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2441 | if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]); |
1714 | EV_WIN32_CLOSE_FD (evpipe [1]); |
2442 | if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]); |
1715 | } |
|
|
1716 | } |
2443 | } |
1717 | |
2444 | |
1718 | #if EV_USE_SIGNALFD |
2445 | #if EV_USE_SIGNALFD |
1719 | if (ev_is_active (&sigfd_w)) |
2446 | if (ev_is_active (&sigfd_w)) |
1720 | close (sigfd); |
2447 | close (sigfd); |
… | |
… | |
1726 | #endif |
2453 | #endif |
1727 | |
2454 | |
1728 | if (backend_fd >= 0) |
2455 | if (backend_fd >= 0) |
1729 | close (backend_fd); |
2456 | close (backend_fd); |
1730 | |
2457 | |
|
|
2458 | #if EV_USE_IOCP |
|
|
2459 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
2460 | #endif |
1731 | #if EV_USE_PORT |
2461 | #if EV_USE_PORT |
1732 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
2462 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1733 | #endif |
2463 | #endif |
1734 | #if EV_USE_KQUEUE |
2464 | #if EV_USE_KQUEUE |
1735 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
2465 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
… | |
… | |
1762 | array_free (periodic, EMPTY); |
2492 | array_free (periodic, EMPTY); |
1763 | #endif |
2493 | #endif |
1764 | #if EV_FORK_ENABLE |
2494 | #if EV_FORK_ENABLE |
1765 | array_free (fork, EMPTY); |
2495 | array_free (fork, EMPTY); |
1766 | #endif |
2496 | #endif |
|
|
2497 | #if EV_CLEANUP_ENABLE |
|
|
2498 | array_free (cleanup, EMPTY); |
|
|
2499 | #endif |
1767 | array_free (prepare, EMPTY); |
2500 | array_free (prepare, EMPTY); |
1768 | array_free (check, EMPTY); |
2501 | array_free (check, EMPTY); |
1769 | #if EV_ASYNC_ENABLE |
2502 | #if EV_ASYNC_ENABLE |
1770 | array_free (async, EMPTY); |
2503 | array_free (async, EMPTY); |
1771 | #endif |
2504 | #endif |
1772 | |
2505 | |
1773 | backend = 0; |
2506 | backend = 0; |
|
|
2507 | |
|
|
2508 | #if EV_MULTIPLICITY |
|
|
2509 | if (ev_is_default_loop (EV_A)) |
|
|
2510 | #endif |
|
|
2511 | ev_default_loop_ptr = 0; |
|
|
2512 | #if EV_MULTIPLICITY |
|
|
2513 | else |
|
|
2514 | ev_free (EV_A); |
|
|
2515 | #endif |
1774 | } |
2516 | } |
1775 | |
2517 | |
1776 | #if EV_USE_INOTIFY |
2518 | #if EV_USE_INOTIFY |
1777 | inline_size void infy_fork (EV_P); |
2519 | inline_size void infy_fork (EV_P); |
1778 | #endif |
2520 | #endif |
… | |
… | |
1791 | #endif |
2533 | #endif |
1792 | #if EV_USE_INOTIFY |
2534 | #if EV_USE_INOTIFY |
1793 | infy_fork (EV_A); |
2535 | infy_fork (EV_A); |
1794 | #endif |
2536 | #endif |
1795 | |
2537 | |
|
|
2538 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1796 | if (ev_is_active (&pipe_w)) |
2539 | if (ev_is_active (&pipe_w)) |
1797 | { |
2540 | { |
1798 | /* this "locks" the handlers against writing to the pipe */ |
2541 | /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ |
1799 | /* while we modify the fd vars */ |
|
|
1800 | sig_pending = 1; |
|
|
1801 | #if EV_ASYNC_ENABLE |
|
|
1802 | async_pending = 1; |
|
|
1803 | #endif |
|
|
1804 | |
2542 | |
1805 | ev_ref (EV_A); |
2543 | ev_ref (EV_A); |
1806 | ev_io_stop (EV_A_ &pipe_w); |
2544 | ev_io_stop (EV_A_ &pipe_w); |
1807 | |
2545 | |
1808 | #if EV_USE_EVENTFD |
|
|
1809 | if (evfd >= 0) |
|
|
1810 | close (evfd); |
|
|
1811 | #endif |
|
|
1812 | |
|
|
1813 | if (evpipe [0] >= 0) |
2546 | if (evpipe [0] >= 0) |
1814 | { |
|
|
1815 | EV_WIN32_CLOSE_FD (evpipe [0]); |
2547 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1816 | EV_WIN32_CLOSE_FD (evpipe [1]); |
|
|
1817 | } |
|
|
1818 | |
2548 | |
1819 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
|
|
1820 | evpipe_init (EV_A); |
2549 | evpipe_init (EV_A); |
1821 | /* now iterate over everything, in case we missed something */ |
2550 | /* iterate over everything, in case we missed something before */ |
1822 | pipecb (EV_A_ &pipe_w, EV_READ); |
2551 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
1823 | #endif |
|
|
1824 | } |
2552 | } |
|
|
2553 | #endif |
1825 | |
2554 | |
1826 | postfork = 0; |
2555 | postfork = 0; |
1827 | } |
2556 | } |
1828 | |
2557 | |
1829 | #if EV_MULTIPLICITY |
2558 | #if EV_MULTIPLICITY |
1830 | |
2559 | |
1831 | struct ev_loop * |
2560 | struct ev_loop * ecb_cold |
1832 | ev_loop_new (unsigned int flags) |
2561 | ev_loop_new (unsigned int flags) EV_THROW |
1833 | { |
2562 | { |
1834 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
2563 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1835 | |
2564 | |
1836 | memset (EV_A, 0, sizeof (struct ev_loop)); |
2565 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1837 | loop_init (EV_A_ flags); |
2566 | loop_init (EV_A_ flags); |
1838 | |
2567 | |
1839 | if (ev_backend (EV_A)) |
2568 | if (ev_backend (EV_A)) |
1840 | return EV_A; |
2569 | return EV_A; |
1841 | |
2570 | |
|
|
2571 | ev_free (EV_A); |
1842 | return 0; |
2572 | return 0; |
1843 | } |
2573 | } |
1844 | |
2574 | |
1845 | void |
|
|
1846 | ev_loop_destroy (EV_P) |
|
|
1847 | { |
|
|
1848 | loop_destroy (EV_A); |
|
|
1849 | ev_free (loop); |
|
|
1850 | } |
|
|
1851 | |
|
|
1852 | void |
|
|
1853 | ev_loop_fork (EV_P) |
|
|
1854 | { |
|
|
1855 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1856 | } |
|
|
1857 | #endif /* multiplicity */ |
2575 | #endif /* multiplicity */ |
1858 | |
2576 | |
1859 | #if EV_VERIFY |
2577 | #if EV_VERIFY |
1860 | static void noinline |
2578 | static void noinline ecb_cold |
1861 | verify_watcher (EV_P_ W w) |
2579 | verify_watcher (EV_P_ W w) |
1862 | { |
2580 | { |
1863 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
2581 | assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); |
1864 | |
2582 | |
1865 | if (w->pending) |
2583 | if (w->pending) |
1866 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
2584 | assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); |
1867 | } |
2585 | } |
1868 | |
2586 | |
1869 | static void noinline |
2587 | static void noinline ecb_cold |
1870 | verify_heap (EV_P_ ANHE *heap, int N) |
2588 | verify_heap (EV_P_ ANHE *heap, int N) |
1871 | { |
2589 | { |
1872 | int i; |
2590 | int i; |
1873 | |
2591 | |
1874 | for (i = HEAP0; i < N + HEAP0; ++i) |
2592 | for (i = HEAP0; i < N + HEAP0; ++i) |
… | |
… | |
1879 | |
2597 | |
1880 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
2598 | verify_watcher (EV_A_ (W)ANHE_w (heap [i])); |
1881 | } |
2599 | } |
1882 | } |
2600 | } |
1883 | |
2601 | |
1884 | static void noinline |
2602 | static void noinline ecb_cold |
1885 | array_verify (EV_P_ W *ws, int cnt) |
2603 | array_verify (EV_P_ W *ws, int cnt) |
1886 | { |
2604 | { |
1887 | while (cnt--) |
2605 | while (cnt--) |
1888 | { |
2606 | { |
1889 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
2607 | assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); |
… | |
… | |
1891 | } |
2609 | } |
1892 | } |
2610 | } |
1893 | #endif |
2611 | #endif |
1894 | |
2612 | |
1895 | #if EV_FEATURE_API |
2613 | #if EV_FEATURE_API |
1896 | void |
2614 | void ecb_cold |
1897 | ev_verify (EV_P) |
2615 | ev_verify (EV_P) EV_THROW |
1898 | { |
2616 | { |
1899 | #if EV_VERIFY |
2617 | #if EV_VERIFY |
1900 | int i; |
2618 | int i; |
1901 | WL w; |
2619 | WL w, w2; |
1902 | |
2620 | |
1903 | assert (activecnt >= -1); |
2621 | assert (activecnt >= -1); |
1904 | |
2622 | |
1905 | assert (fdchangemax >= fdchangecnt); |
2623 | assert (fdchangemax >= fdchangecnt); |
1906 | for (i = 0; i < fdchangecnt; ++i) |
2624 | for (i = 0; i < fdchangecnt; ++i) |
1907 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
2625 | assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); |
1908 | |
2626 | |
1909 | assert (anfdmax >= 0); |
2627 | assert (anfdmax >= 0); |
1910 | for (i = 0; i < anfdmax; ++i) |
2628 | for (i = 0; i < anfdmax; ++i) |
|
|
2629 | { |
|
|
2630 | int j = 0; |
|
|
2631 | |
1911 | for (w = anfds [i].head; w; w = w->next) |
2632 | for (w = w2 = anfds [i].head; w; w = w->next) |
1912 | { |
2633 | { |
1913 | verify_watcher (EV_A_ (W)w); |
2634 | verify_watcher (EV_A_ (W)w); |
|
|
2635 | |
|
|
2636 | if (j++ & 1) |
|
|
2637 | { |
|
|
2638 | assert (("libev: io watcher list contains a loop", w != w2)); |
|
|
2639 | w2 = w2->next; |
|
|
2640 | } |
|
|
2641 | |
1914 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
2642 | assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); |
1915 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
2643 | assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); |
1916 | } |
2644 | } |
|
|
2645 | } |
1917 | |
2646 | |
1918 | assert (timermax >= timercnt); |
2647 | assert (timermax >= timercnt); |
1919 | verify_heap (EV_A_ timers, timercnt); |
2648 | verify_heap (EV_A_ timers, timercnt); |
1920 | |
2649 | |
1921 | #if EV_PERIODIC_ENABLE |
2650 | #if EV_PERIODIC_ENABLE |
… | |
… | |
1936 | #if EV_FORK_ENABLE |
2665 | #if EV_FORK_ENABLE |
1937 | assert (forkmax >= forkcnt); |
2666 | assert (forkmax >= forkcnt); |
1938 | array_verify (EV_A_ (W *)forks, forkcnt); |
2667 | array_verify (EV_A_ (W *)forks, forkcnt); |
1939 | #endif |
2668 | #endif |
1940 | |
2669 | |
|
|
2670 | #if EV_CLEANUP_ENABLE |
|
|
2671 | assert (cleanupmax >= cleanupcnt); |
|
|
2672 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
2673 | #endif |
|
|
2674 | |
1941 | #if EV_ASYNC_ENABLE |
2675 | #if EV_ASYNC_ENABLE |
1942 | assert (asyncmax >= asynccnt); |
2676 | assert (asyncmax >= asynccnt); |
1943 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
2677 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1944 | #endif |
2678 | #endif |
1945 | |
2679 | |
… | |
… | |
1962 | #endif |
2696 | #endif |
1963 | } |
2697 | } |
1964 | #endif |
2698 | #endif |
1965 | |
2699 | |
1966 | #if EV_MULTIPLICITY |
2700 | #if EV_MULTIPLICITY |
1967 | struct ev_loop * |
2701 | struct ev_loop * ecb_cold |
1968 | ev_default_loop_init (unsigned int flags) |
|
|
1969 | #else |
2702 | #else |
1970 | int |
2703 | int |
|
|
2704 | #endif |
1971 | ev_default_loop (unsigned int flags) |
2705 | ev_default_loop (unsigned int flags) EV_THROW |
1972 | #endif |
|
|
1973 | { |
2706 | { |
1974 | if (!ev_default_loop_ptr) |
2707 | if (!ev_default_loop_ptr) |
1975 | { |
2708 | { |
1976 | #if EV_MULTIPLICITY |
2709 | #if EV_MULTIPLICITY |
1977 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
2710 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
1996 | |
2729 | |
1997 | return ev_default_loop_ptr; |
2730 | return ev_default_loop_ptr; |
1998 | } |
2731 | } |
1999 | |
2732 | |
2000 | void |
2733 | void |
2001 | ev_default_destroy (void) |
2734 | ev_loop_fork (EV_P) EV_THROW |
2002 | { |
2735 | { |
2003 | #if EV_MULTIPLICITY |
2736 | postfork = 1; |
2004 | EV_P = ev_default_loop_ptr; |
|
|
2005 | #endif |
|
|
2006 | |
|
|
2007 | ev_default_loop_ptr = 0; |
|
|
2008 | |
|
|
2009 | #if EV_CHILD_ENABLE |
|
|
2010 | ev_ref (EV_A); /* child watcher */ |
|
|
2011 | ev_signal_stop (EV_A_ &childev); |
|
|
2012 | #endif |
|
|
2013 | |
|
|
2014 | loop_destroy (EV_A); |
|
|
2015 | } |
|
|
2016 | |
|
|
2017 | void |
|
|
2018 | ev_default_fork (void) |
|
|
2019 | { |
|
|
2020 | #if EV_MULTIPLICITY |
|
|
2021 | EV_P = ev_default_loop_ptr; |
|
|
2022 | #endif |
|
|
2023 | |
|
|
2024 | postfork = 1; /* must be in line with ev_loop_fork */ |
|
|
2025 | } |
2737 | } |
2026 | |
2738 | |
2027 | /*****************************************************************************/ |
2739 | /*****************************************************************************/ |
2028 | |
2740 | |
2029 | void |
2741 | void |
… | |
… | |
2031 | { |
2743 | { |
2032 | EV_CB_INVOKE ((W)w, revents); |
2744 | EV_CB_INVOKE ((W)w, revents); |
2033 | } |
2745 | } |
2034 | |
2746 | |
2035 | unsigned int |
2747 | unsigned int |
2036 | ev_pending_count (EV_P) |
2748 | ev_pending_count (EV_P) EV_THROW |
2037 | { |
2749 | { |
2038 | int pri; |
2750 | int pri; |
2039 | unsigned int count = 0; |
2751 | unsigned int count = 0; |
2040 | |
2752 | |
2041 | for (pri = NUMPRI; pri--; ) |
2753 | for (pri = NUMPRI; pri--; ) |
… | |
… | |
2045 | } |
2757 | } |
2046 | |
2758 | |
2047 | void noinline |
2759 | void noinline |
2048 | ev_invoke_pending (EV_P) |
2760 | ev_invoke_pending (EV_P) |
2049 | { |
2761 | { |
2050 | int pri; |
2762 | pendingpri = NUMPRI; |
2051 | |
2763 | |
2052 | for (pri = NUMPRI; pri--; ) |
2764 | while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ |
|
|
2765 | { |
|
|
2766 | --pendingpri; |
|
|
2767 | |
2053 | while (pendingcnt [pri]) |
2768 | while (pendingcnt [pendingpri]) |
2054 | { |
2769 | { |
2055 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
2770 | ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; |
2056 | |
2771 | |
2057 | /*assert (("libev: non-pending watcher on pending list", p->w->pending));*/ |
|
|
2058 | /* ^ this is no longer true, as pending_w could be here */ |
|
|
2059 | |
|
|
2060 | p->w->pending = 0; |
2772 | p->w->pending = 0; |
2061 | EV_CB_INVOKE (p->w, p->events); |
2773 | EV_CB_INVOKE (p->w, p->events); |
2062 | EV_FREQUENT_CHECK; |
2774 | EV_FREQUENT_CHECK; |
2063 | } |
2775 | } |
|
|
2776 | } |
2064 | } |
2777 | } |
2065 | |
2778 | |
2066 | #if EV_IDLE_ENABLE |
2779 | #if EV_IDLE_ENABLE |
2067 | /* make idle watchers pending. this handles the "call-idle */ |
2780 | /* make idle watchers pending. this handles the "call-idle */ |
2068 | /* only when higher priorities are idle" logic */ |
2781 | /* only when higher priorities are idle" logic */ |
… | |
… | |
2125 | feed_reverse_done (EV_A_ EV_TIMER); |
2838 | feed_reverse_done (EV_A_ EV_TIMER); |
2126 | } |
2839 | } |
2127 | } |
2840 | } |
2128 | |
2841 | |
2129 | #if EV_PERIODIC_ENABLE |
2842 | #if EV_PERIODIC_ENABLE |
|
|
2843 | |
|
|
2844 | static void noinline |
|
|
2845 | periodic_recalc (EV_P_ ev_periodic *w) |
|
|
2846 | { |
|
|
2847 | ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; |
|
|
2848 | ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); |
|
|
2849 | |
|
|
2850 | /* the above almost always errs on the low side */ |
|
|
2851 | while (at <= ev_rt_now) |
|
|
2852 | { |
|
|
2853 | ev_tstamp nat = at + w->interval; |
|
|
2854 | |
|
|
2855 | /* when resolution fails us, we use ev_rt_now */ |
|
|
2856 | if (expect_false (nat == at)) |
|
|
2857 | { |
|
|
2858 | at = ev_rt_now; |
|
|
2859 | break; |
|
|
2860 | } |
|
|
2861 | |
|
|
2862 | at = nat; |
|
|
2863 | } |
|
|
2864 | |
|
|
2865 | ev_at (w) = at; |
|
|
2866 | } |
|
|
2867 | |
2130 | /* make periodics pending */ |
2868 | /* make periodics pending */ |
2131 | inline_size void |
2869 | inline_size void |
2132 | periodics_reify (EV_P) |
2870 | periodics_reify (EV_P) |
2133 | { |
2871 | { |
2134 | EV_FREQUENT_CHECK; |
2872 | EV_FREQUENT_CHECK; |
2135 | |
2873 | |
2136 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2874 | while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) |
2137 | { |
2875 | { |
2138 | int feed_count = 0; |
|
|
2139 | |
|
|
2140 | do |
2876 | do |
2141 | { |
2877 | { |
2142 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2878 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); |
2143 | |
2879 | |
2144 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
2880 | /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ |
… | |
… | |
2153 | ANHE_at_cache (periodics [HEAP0]); |
2889 | ANHE_at_cache (periodics [HEAP0]); |
2154 | downheap (periodics, periodiccnt, HEAP0); |
2890 | downheap (periodics, periodiccnt, HEAP0); |
2155 | } |
2891 | } |
2156 | else if (w->interval) |
2892 | else if (w->interval) |
2157 | { |
2893 | { |
2158 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2894 | periodic_recalc (EV_A_ w); |
2159 | /* if next trigger time is not sufficiently in the future, put it there */ |
|
|
2160 | /* this might happen because of floating point inexactness */ |
|
|
2161 | if (ev_at (w) - ev_rt_now < TIME_EPSILON) |
|
|
2162 | { |
|
|
2163 | ev_at (w) += w->interval; |
|
|
2164 | |
|
|
2165 | /* if interval is unreasonably low we might still have a time in the past */ |
|
|
2166 | /* so correct this. this will make the periodic very inexact, but the user */ |
|
|
2167 | /* has effectively asked to get triggered more often than possible */ |
|
|
2168 | if (ev_at (w) < ev_rt_now) |
|
|
2169 | ev_at (w) = ev_rt_now; |
|
|
2170 | } |
|
|
2171 | |
|
|
2172 | ANHE_at_cache (periodics [HEAP0]); |
2895 | ANHE_at_cache (periodics [HEAP0]); |
2173 | downheap (periodics, periodiccnt, HEAP0); |
2896 | downheap (periodics, periodiccnt, HEAP0); |
2174 | } |
2897 | } |
2175 | else |
2898 | else |
2176 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
2899 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
… | |
… | |
2184 | } |
2907 | } |
2185 | } |
2908 | } |
2186 | |
2909 | |
2187 | /* simply recalculate all periodics */ |
2910 | /* simply recalculate all periodics */ |
2188 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2911 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2189 | static void noinline |
2912 | static void noinline ecb_cold |
2190 | periodics_reschedule (EV_P) |
2913 | periodics_reschedule (EV_P) |
2191 | { |
2914 | { |
2192 | int i; |
2915 | int i; |
2193 | |
2916 | |
2194 | /* adjust periodics after time jump */ |
2917 | /* adjust periodics after time jump */ |
… | |
… | |
2197 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
2920 | ev_periodic *w = (ev_periodic *)ANHE_w (periodics [i]); |
2198 | |
2921 | |
2199 | if (w->reschedule_cb) |
2922 | if (w->reschedule_cb) |
2200 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2923 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2201 | else if (w->interval) |
2924 | else if (w->interval) |
2202 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
2925 | periodic_recalc (EV_A_ w); |
2203 | |
2926 | |
2204 | ANHE_at_cache (periodics [i]); |
2927 | ANHE_at_cache (periodics [i]); |
2205 | } |
2928 | } |
2206 | |
2929 | |
2207 | reheap (periodics, periodiccnt); |
2930 | reheap (periodics, periodiccnt); |
2208 | } |
2931 | } |
2209 | #endif |
2932 | #endif |
2210 | |
2933 | |
2211 | /* adjust all timers by a given offset */ |
2934 | /* adjust all timers by a given offset */ |
2212 | static void noinline |
2935 | static void noinline ecb_cold |
2213 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2936 | timers_reschedule (EV_P_ ev_tstamp adjust) |
2214 | { |
2937 | { |
2215 | int i; |
2938 | int i; |
2216 | |
2939 | |
2217 | for (i = 0; i < timercnt; ++i) |
2940 | for (i = 0; i < timercnt; ++i) |
… | |
… | |
2254 | * doesn't hurt either as we only do this on time-jumps or |
2977 | * doesn't hurt either as we only do this on time-jumps or |
2255 | * in the unlikely event of having been preempted here. |
2978 | * in the unlikely event of having been preempted here. |
2256 | */ |
2979 | */ |
2257 | for (i = 4; --i; ) |
2980 | for (i = 4; --i; ) |
2258 | { |
2981 | { |
|
|
2982 | ev_tstamp diff; |
2259 | rtmn_diff = ev_rt_now - mn_now; |
2983 | rtmn_diff = ev_rt_now - mn_now; |
2260 | |
2984 | |
|
|
2985 | diff = odiff - rtmn_diff; |
|
|
2986 | |
2261 | if (expect_true (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP)) |
2987 | if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) |
2262 | return; /* all is well */ |
2988 | return; /* all is well */ |
2263 | |
2989 | |
2264 | ev_rt_now = ev_time (); |
2990 | ev_rt_now = ev_time (); |
2265 | mn_now = get_clock (); |
2991 | mn_now = get_clock (); |
2266 | now_floor = mn_now; |
2992 | now_floor = mn_now; |
… | |
… | |
2288 | |
3014 | |
2289 | mn_now = ev_rt_now; |
3015 | mn_now = ev_rt_now; |
2290 | } |
3016 | } |
2291 | } |
3017 | } |
2292 | |
3018 | |
2293 | void |
3019 | int |
2294 | ev_loop (EV_P_ int flags) |
3020 | ev_run (EV_P_ int flags) |
2295 | { |
3021 | { |
2296 | #if EV_FEATURE_API |
3022 | #if EV_FEATURE_API |
2297 | ++loop_depth; |
3023 | ++loop_depth; |
2298 | #endif |
3024 | #endif |
2299 | |
3025 | |
2300 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
3026 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
2301 | |
3027 | |
2302 | loop_done = EVUNLOOP_CANCEL; |
3028 | loop_done = EVBREAK_CANCEL; |
2303 | |
3029 | |
2304 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
3030 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2305 | |
3031 | |
2306 | do |
3032 | do |
2307 | { |
3033 | { |
… | |
… | |
2350 | /* calculate blocking time */ |
3076 | /* calculate blocking time */ |
2351 | { |
3077 | { |
2352 | ev_tstamp waittime = 0.; |
3078 | ev_tstamp waittime = 0.; |
2353 | ev_tstamp sleeptime = 0.; |
3079 | ev_tstamp sleeptime = 0.; |
2354 | |
3080 | |
|
|
3081 | /* remember old timestamp for io_blocktime calculation */ |
|
|
3082 | ev_tstamp prev_mn_now = mn_now; |
|
|
3083 | |
|
|
3084 | /* update time to cancel out callback processing overhead */ |
|
|
3085 | time_update (EV_A_ 1e100); |
|
|
3086 | |
|
|
3087 | /* from now on, we want a pipe-wake-up */ |
|
|
3088 | pipe_write_wanted = 1; |
|
|
3089 | |
|
|
3090 | ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ |
|
|
3091 | |
2355 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
3092 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) |
2356 | { |
3093 | { |
2357 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2358 | ev_tstamp prev_mn_now = mn_now; |
|
|
2359 | |
|
|
2360 | /* update time to cancel out callback processing overhead */ |
|
|
2361 | time_update (EV_A_ 1e100); |
|
|
2362 | |
|
|
2363 | waittime = MAX_BLOCKTIME; |
3094 | waittime = MAX_BLOCKTIME; |
2364 | |
3095 | |
2365 | if (timercnt) |
3096 | if (timercnt) |
2366 | { |
3097 | { |
2367 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
3098 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; |
2368 | if (waittime > to) waittime = to; |
3099 | if (waittime > to) waittime = to; |
2369 | } |
3100 | } |
2370 | |
3101 | |
2371 | #if EV_PERIODIC_ENABLE |
3102 | #if EV_PERIODIC_ENABLE |
2372 | if (periodiccnt) |
3103 | if (periodiccnt) |
2373 | { |
3104 | { |
2374 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now + backend_fudge; |
3105 | ev_tstamp to = ANHE_at (periodics [HEAP0]) - ev_rt_now; |
2375 | if (waittime > to) waittime = to; |
3106 | if (waittime > to) waittime = to; |
2376 | } |
3107 | } |
2377 | #endif |
3108 | #endif |
2378 | |
3109 | |
2379 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
3110 | /* don't let timeouts decrease the waittime below timeout_blocktime */ |
2380 | if (expect_false (waittime < timeout_blocktime)) |
3111 | if (expect_false (waittime < timeout_blocktime)) |
2381 | waittime = timeout_blocktime; |
3112 | waittime = timeout_blocktime; |
|
|
3113 | |
|
|
3114 | /* at this point, we NEED to wait, so we have to ensure */ |
|
|
3115 | /* to pass a minimum nonzero value to the backend */ |
|
|
3116 | if (expect_false (waittime < backend_mintime)) |
|
|
3117 | waittime = backend_mintime; |
2382 | |
3118 | |
2383 | /* extra check because io_blocktime is commonly 0 */ |
3119 | /* extra check because io_blocktime is commonly 0 */ |
2384 | if (expect_false (io_blocktime)) |
3120 | if (expect_false (io_blocktime)) |
2385 | { |
3121 | { |
2386 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
3122 | sleeptime = io_blocktime - (mn_now - prev_mn_now); |
2387 | |
3123 | |
2388 | if (sleeptime > waittime - backend_fudge) |
3124 | if (sleeptime > waittime - backend_mintime) |
2389 | sleeptime = waittime - backend_fudge; |
3125 | sleeptime = waittime - backend_mintime; |
2390 | |
3126 | |
2391 | if (expect_true (sleeptime > 0.)) |
3127 | if (expect_true (sleeptime > 0.)) |
2392 | { |
3128 | { |
2393 | ev_sleep (sleeptime); |
3129 | ev_sleep (sleeptime); |
2394 | waittime -= sleeptime; |
3130 | waittime -= sleeptime; |
… | |
… | |
2397 | } |
3133 | } |
2398 | |
3134 | |
2399 | #if EV_FEATURE_API |
3135 | #if EV_FEATURE_API |
2400 | ++loop_count; |
3136 | ++loop_count; |
2401 | #endif |
3137 | #endif |
2402 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
3138 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2403 | backend_poll (EV_A_ waittime); |
3139 | backend_poll (EV_A_ waittime); |
2404 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
3140 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
|
|
3141 | |
|
|
3142 | pipe_write_wanted = 0; /* just an optimisation, no fence needed */ |
|
|
3143 | |
|
|
3144 | ECB_MEMORY_FENCE_ACQUIRE; |
|
|
3145 | if (pipe_write_skipped) |
|
|
3146 | { |
|
|
3147 | assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); |
|
|
3148 | ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); |
|
|
3149 | } |
|
|
3150 | |
2405 | |
3151 | |
2406 | /* update ev_rt_now, do magic */ |
3152 | /* update ev_rt_now, do magic */ |
2407 | time_update (EV_A_ waittime + sleeptime); |
3153 | time_update (EV_A_ waittime + sleeptime); |
2408 | } |
3154 | } |
2409 | |
3155 | |
… | |
… | |
2427 | EV_INVOKE_PENDING; |
3173 | EV_INVOKE_PENDING; |
2428 | } |
3174 | } |
2429 | while (expect_true ( |
3175 | while (expect_true ( |
2430 | activecnt |
3176 | activecnt |
2431 | && !loop_done |
3177 | && !loop_done |
2432 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
3178 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
2433 | )); |
3179 | )); |
2434 | |
3180 | |
2435 | if (loop_done == EVUNLOOP_ONE) |
3181 | if (loop_done == EVBREAK_ONE) |
2436 | loop_done = EVUNLOOP_CANCEL; |
3182 | loop_done = EVBREAK_CANCEL; |
2437 | |
3183 | |
2438 | #if EV_FEATURE_API |
3184 | #if EV_FEATURE_API |
2439 | --loop_depth; |
3185 | --loop_depth; |
2440 | #endif |
3186 | #endif |
|
|
3187 | |
|
|
3188 | return activecnt; |
2441 | } |
3189 | } |
2442 | |
3190 | |
2443 | void |
3191 | void |
2444 | ev_unloop (EV_P_ int how) |
3192 | ev_break (EV_P_ int how) EV_THROW |
2445 | { |
3193 | { |
2446 | loop_done = how; |
3194 | loop_done = how; |
2447 | } |
3195 | } |
2448 | |
3196 | |
2449 | void |
3197 | void |
2450 | ev_ref (EV_P) |
3198 | ev_ref (EV_P) EV_THROW |
2451 | { |
3199 | { |
2452 | ++activecnt; |
3200 | ++activecnt; |
2453 | } |
3201 | } |
2454 | |
3202 | |
2455 | void |
3203 | void |
2456 | ev_unref (EV_P) |
3204 | ev_unref (EV_P) EV_THROW |
2457 | { |
3205 | { |
2458 | --activecnt; |
3206 | --activecnt; |
2459 | } |
3207 | } |
2460 | |
3208 | |
2461 | void |
3209 | void |
2462 | ev_now_update (EV_P) |
3210 | ev_now_update (EV_P) EV_THROW |
2463 | { |
3211 | { |
2464 | time_update (EV_A_ 1e100); |
3212 | time_update (EV_A_ 1e100); |
2465 | } |
3213 | } |
2466 | |
3214 | |
2467 | void |
3215 | void |
2468 | ev_suspend (EV_P) |
3216 | ev_suspend (EV_P) EV_THROW |
2469 | { |
3217 | { |
2470 | ev_now_update (EV_A); |
3218 | ev_now_update (EV_A); |
2471 | } |
3219 | } |
2472 | |
3220 | |
2473 | void |
3221 | void |
2474 | ev_resume (EV_P) |
3222 | ev_resume (EV_P) EV_THROW |
2475 | { |
3223 | { |
2476 | ev_tstamp mn_prev = mn_now; |
3224 | ev_tstamp mn_prev = mn_now; |
2477 | |
3225 | |
2478 | ev_now_update (EV_A); |
3226 | ev_now_update (EV_A); |
2479 | timers_reschedule (EV_A_ mn_now - mn_prev); |
3227 | timers_reschedule (EV_A_ mn_now - mn_prev); |
… | |
… | |
2518 | w->pending = 0; |
3266 | w->pending = 0; |
2519 | } |
3267 | } |
2520 | } |
3268 | } |
2521 | |
3269 | |
2522 | int |
3270 | int |
2523 | ev_clear_pending (EV_P_ void *w) |
3271 | ev_clear_pending (EV_P_ void *w) EV_THROW |
2524 | { |
3272 | { |
2525 | W w_ = (W)w; |
3273 | W w_ = (W)w; |
2526 | int pending = w_->pending; |
3274 | int pending = w_->pending; |
2527 | |
3275 | |
2528 | if (expect_true (pending)) |
3276 | if (expect_true (pending)) |
… | |
… | |
2561 | } |
3309 | } |
2562 | |
3310 | |
2563 | /*****************************************************************************/ |
3311 | /*****************************************************************************/ |
2564 | |
3312 | |
2565 | void noinline |
3313 | void noinline |
2566 | ev_io_start (EV_P_ ev_io *w) |
3314 | ev_io_start (EV_P_ ev_io *w) EV_THROW |
2567 | { |
3315 | { |
2568 | int fd = w->fd; |
3316 | int fd = w->fd; |
2569 | |
3317 | |
2570 | if (expect_false (ev_is_active (w))) |
3318 | if (expect_false (ev_is_active (w))) |
2571 | return; |
3319 | return; |
… | |
… | |
2577 | |
3325 | |
2578 | ev_start (EV_A_ (W)w, 1); |
3326 | ev_start (EV_A_ (W)w, 1); |
2579 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
3327 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2580 | wlist_add (&anfds[fd].head, (WL)w); |
3328 | wlist_add (&anfds[fd].head, (WL)w); |
2581 | |
3329 | |
|
|
3330 | /* common bug, apparently */ |
|
|
3331 | assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); |
|
|
3332 | |
2582 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
3333 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2583 | w->events &= ~EV__IOFDSET; |
3334 | w->events &= ~EV__IOFDSET; |
2584 | |
3335 | |
2585 | EV_FREQUENT_CHECK; |
3336 | EV_FREQUENT_CHECK; |
2586 | } |
3337 | } |
2587 | |
3338 | |
2588 | void noinline |
3339 | void noinline |
2589 | ev_io_stop (EV_P_ ev_io *w) |
3340 | ev_io_stop (EV_P_ ev_io *w) EV_THROW |
2590 | { |
3341 | { |
2591 | clear_pending (EV_A_ (W)w); |
3342 | clear_pending (EV_A_ (W)w); |
2592 | if (expect_false (!ev_is_active (w))) |
3343 | if (expect_false (!ev_is_active (w))) |
2593 | return; |
3344 | return; |
2594 | |
3345 | |
… | |
… | |
2597 | EV_FREQUENT_CHECK; |
3348 | EV_FREQUENT_CHECK; |
2598 | |
3349 | |
2599 | wlist_del (&anfds[w->fd].head, (WL)w); |
3350 | wlist_del (&anfds[w->fd].head, (WL)w); |
2600 | ev_stop (EV_A_ (W)w); |
3351 | ev_stop (EV_A_ (W)w); |
2601 | |
3352 | |
2602 | fd_change (EV_A_ w->fd, 1); |
3353 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
2603 | |
3354 | |
2604 | EV_FREQUENT_CHECK; |
3355 | EV_FREQUENT_CHECK; |
2605 | } |
3356 | } |
2606 | |
3357 | |
2607 | void noinline |
3358 | void noinline |
2608 | ev_timer_start (EV_P_ ev_timer *w) |
3359 | ev_timer_start (EV_P_ ev_timer *w) EV_THROW |
2609 | { |
3360 | { |
2610 | if (expect_false (ev_is_active (w))) |
3361 | if (expect_false (ev_is_active (w))) |
2611 | return; |
3362 | return; |
2612 | |
3363 | |
2613 | ev_at (w) += mn_now; |
3364 | ev_at (w) += mn_now; |
… | |
… | |
2627 | |
3378 | |
2628 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
3379 | /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ |
2629 | } |
3380 | } |
2630 | |
3381 | |
2631 | void noinline |
3382 | void noinline |
2632 | ev_timer_stop (EV_P_ ev_timer *w) |
3383 | ev_timer_stop (EV_P_ ev_timer *w) EV_THROW |
2633 | { |
3384 | { |
2634 | clear_pending (EV_A_ (W)w); |
3385 | clear_pending (EV_A_ (W)w); |
2635 | if (expect_false (!ev_is_active (w))) |
3386 | if (expect_false (!ev_is_active (w))) |
2636 | return; |
3387 | return; |
2637 | |
3388 | |
… | |
… | |
2657 | |
3408 | |
2658 | EV_FREQUENT_CHECK; |
3409 | EV_FREQUENT_CHECK; |
2659 | } |
3410 | } |
2660 | |
3411 | |
2661 | void noinline |
3412 | void noinline |
2662 | ev_timer_again (EV_P_ ev_timer *w) |
3413 | ev_timer_again (EV_P_ ev_timer *w) EV_THROW |
2663 | { |
3414 | { |
2664 | EV_FREQUENT_CHECK; |
3415 | EV_FREQUENT_CHECK; |
|
|
3416 | |
|
|
3417 | clear_pending (EV_A_ (W)w); |
2665 | |
3418 | |
2666 | if (ev_is_active (w)) |
3419 | if (ev_is_active (w)) |
2667 | { |
3420 | { |
2668 | if (w->repeat) |
3421 | if (w->repeat) |
2669 | { |
3422 | { |
… | |
… | |
2682 | |
3435 | |
2683 | EV_FREQUENT_CHECK; |
3436 | EV_FREQUENT_CHECK; |
2684 | } |
3437 | } |
2685 | |
3438 | |
2686 | ev_tstamp |
3439 | ev_tstamp |
2687 | ev_timer_remaining (EV_P_ ev_timer *w) |
3440 | ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW |
2688 | { |
3441 | { |
2689 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
3442 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
2690 | } |
3443 | } |
2691 | |
3444 | |
2692 | #if EV_PERIODIC_ENABLE |
3445 | #if EV_PERIODIC_ENABLE |
2693 | void noinline |
3446 | void noinline |
2694 | ev_periodic_start (EV_P_ ev_periodic *w) |
3447 | ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW |
2695 | { |
3448 | { |
2696 | if (expect_false (ev_is_active (w))) |
3449 | if (expect_false (ev_is_active (w))) |
2697 | return; |
3450 | return; |
2698 | |
3451 | |
2699 | if (w->reschedule_cb) |
3452 | if (w->reschedule_cb) |
2700 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
3453 | ev_at (w) = w->reschedule_cb (w, ev_rt_now); |
2701 | else if (w->interval) |
3454 | else if (w->interval) |
2702 | { |
3455 | { |
2703 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
3456 | assert (("libev: ev_periodic_start called with negative interval value", w->interval >= 0.)); |
2704 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
3457 | periodic_recalc (EV_A_ w); |
2705 | ev_at (w) = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
2706 | } |
3458 | } |
2707 | else |
3459 | else |
2708 | ev_at (w) = w->offset; |
3460 | ev_at (w) = w->offset; |
2709 | |
3461 | |
2710 | EV_FREQUENT_CHECK; |
3462 | EV_FREQUENT_CHECK; |
… | |
… | |
2720 | |
3472 | |
2721 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
3473 | /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ |
2722 | } |
3474 | } |
2723 | |
3475 | |
2724 | void noinline |
3476 | void noinline |
2725 | ev_periodic_stop (EV_P_ ev_periodic *w) |
3477 | ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW |
2726 | { |
3478 | { |
2727 | clear_pending (EV_A_ (W)w); |
3479 | clear_pending (EV_A_ (W)w); |
2728 | if (expect_false (!ev_is_active (w))) |
3480 | if (expect_false (!ev_is_active (w))) |
2729 | return; |
3481 | return; |
2730 | |
3482 | |
… | |
… | |
2748 | |
3500 | |
2749 | EV_FREQUENT_CHECK; |
3501 | EV_FREQUENT_CHECK; |
2750 | } |
3502 | } |
2751 | |
3503 | |
2752 | void noinline |
3504 | void noinline |
2753 | ev_periodic_again (EV_P_ ev_periodic *w) |
3505 | ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW |
2754 | { |
3506 | { |
2755 | /* TODO: use adjustheap and recalculation */ |
3507 | /* TODO: use adjustheap and recalculation */ |
2756 | ev_periodic_stop (EV_A_ w); |
3508 | ev_periodic_stop (EV_A_ w); |
2757 | ev_periodic_start (EV_A_ w); |
3509 | ev_periodic_start (EV_A_ w); |
2758 | } |
3510 | } |
… | |
… | |
2763 | #endif |
3515 | #endif |
2764 | |
3516 | |
2765 | #if EV_SIGNAL_ENABLE |
3517 | #if EV_SIGNAL_ENABLE |
2766 | |
3518 | |
2767 | void noinline |
3519 | void noinline |
2768 | ev_signal_start (EV_P_ ev_signal *w) |
3520 | ev_signal_start (EV_P_ ev_signal *w) EV_THROW |
2769 | { |
3521 | { |
2770 | if (expect_false (ev_is_active (w))) |
3522 | if (expect_false (ev_is_active (w))) |
2771 | return; |
3523 | return; |
2772 | |
3524 | |
2773 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
3525 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
… | |
… | |
2775 | #if EV_MULTIPLICITY |
3527 | #if EV_MULTIPLICITY |
2776 | assert (("libev: a signal must not be attached to two different loops", |
3528 | assert (("libev: a signal must not be attached to two different loops", |
2777 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
3529 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2778 | |
3530 | |
2779 | signals [w->signum - 1].loop = EV_A; |
3531 | signals [w->signum - 1].loop = EV_A; |
|
|
3532 | ECB_MEMORY_FENCE_RELEASE; |
2780 | #endif |
3533 | #endif |
2781 | |
3534 | |
2782 | EV_FREQUENT_CHECK; |
3535 | EV_FREQUENT_CHECK; |
2783 | |
3536 | |
2784 | #if EV_USE_SIGNALFD |
3537 | #if EV_USE_SIGNALFD |
… | |
… | |
2831 | sa.sa_handler = ev_sighandler; |
3584 | sa.sa_handler = ev_sighandler; |
2832 | sigfillset (&sa.sa_mask); |
3585 | sigfillset (&sa.sa_mask); |
2833 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
3586 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2834 | sigaction (w->signum, &sa, 0); |
3587 | sigaction (w->signum, &sa, 0); |
2835 | |
3588 | |
|
|
3589 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
3590 | { |
2836 | sigemptyset (&sa.sa_mask); |
3591 | sigemptyset (&sa.sa_mask); |
2837 | sigaddset (&sa.sa_mask, w->signum); |
3592 | sigaddset (&sa.sa_mask, w->signum); |
2838 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
3593 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
3594 | } |
2839 | #endif |
3595 | #endif |
2840 | } |
3596 | } |
2841 | |
3597 | |
2842 | EV_FREQUENT_CHECK; |
3598 | EV_FREQUENT_CHECK; |
2843 | } |
3599 | } |
2844 | |
3600 | |
2845 | void noinline |
3601 | void noinline |
2846 | ev_signal_stop (EV_P_ ev_signal *w) |
3602 | ev_signal_stop (EV_P_ ev_signal *w) EV_THROW |
2847 | { |
3603 | { |
2848 | clear_pending (EV_A_ (W)w); |
3604 | clear_pending (EV_A_ (W)w); |
2849 | if (expect_false (!ev_is_active (w))) |
3605 | if (expect_false (!ev_is_active (w))) |
2850 | return; |
3606 | return; |
2851 | |
3607 | |
… | |
… | |
2882 | #endif |
3638 | #endif |
2883 | |
3639 | |
2884 | #if EV_CHILD_ENABLE |
3640 | #if EV_CHILD_ENABLE |
2885 | |
3641 | |
2886 | void |
3642 | void |
2887 | ev_child_start (EV_P_ ev_child *w) |
3643 | ev_child_start (EV_P_ ev_child *w) EV_THROW |
2888 | { |
3644 | { |
2889 | #if EV_MULTIPLICITY |
3645 | #if EV_MULTIPLICITY |
2890 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
3646 | assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
2891 | #endif |
3647 | #endif |
2892 | if (expect_false (ev_is_active (w))) |
3648 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2899 | |
3655 | |
2900 | EV_FREQUENT_CHECK; |
3656 | EV_FREQUENT_CHECK; |
2901 | } |
3657 | } |
2902 | |
3658 | |
2903 | void |
3659 | void |
2904 | ev_child_stop (EV_P_ ev_child *w) |
3660 | ev_child_stop (EV_P_ ev_child *w) EV_THROW |
2905 | { |
3661 | { |
2906 | clear_pending (EV_A_ (W)w); |
3662 | clear_pending (EV_A_ (W)w); |
2907 | if (expect_false (!ev_is_active (w))) |
3663 | if (expect_false (!ev_is_active (w))) |
2908 | return; |
3664 | return; |
2909 | |
3665 | |
… | |
… | |
2984 | if (!pend || pend == path) |
3740 | if (!pend || pend == path) |
2985 | break; |
3741 | break; |
2986 | |
3742 | |
2987 | *pend = 0; |
3743 | *pend = 0; |
2988 | w->wd = inotify_add_watch (fs_fd, path, mask); |
3744 | w->wd = inotify_add_watch (fs_fd, path, mask); |
2989 | } |
3745 | } |
2990 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
3746 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2991 | } |
3747 | } |
2992 | } |
3748 | } |
2993 | |
3749 | |
2994 | if (w->wd >= 0) |
3750 | if (w->wd >= 0) |
… | |
… | |
3061 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3817 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3062 | ofs += sizeof (struct inotify_event) + ev->len; |
3818 | ofs += sizeof (struct inotify_event) + ev->len; |
3063 | } |
3819 | } |
3064 | } |
3820 | } |
3065 | |
3821 | |
3066 | inline_size unsigned int |
|
|
3067 | ev_linux_version (void) |
|
|
3068 | { |
|
|
3069 | struct utsname buf; |
|
|
3070 | unsigned int v; |
|
|
3071 | int i; |
|
|
3072 | char *p = buf.release; |
|
|
3073 | |
|
|
3074 | if (uname (&buf)) |
|
|
3075 | return 0; |
|
|
3076 | |
|
|
3077 | for (i = 3+1; --i; ) |
|
|
3078 | { |
|
|
3079 | unsigned int c = 0; |
|
|
3080 | |
|
|
3081 | for (;;) |
|
|
3082 | { |
|
|
3083 | if (*p >= '0' && *p <= '9') |
|
|
3084 | c = c * 10 + *p++ - '0'; |
|
|
3085 | else |
|
|
3086 | { |
|
|
3087 | p += *p == '.'; |
|
|
3088 | break; |
|
|
3089 | } |
|
|
3090 | } |
|
|
3091 | |
|
|
3092 | v = (v << 8) | c; |
|
|
3093 | } |
|
|
3094 | |
|
|
3095 | return v; |
|
|
3096 | } |
|
|
3097 | |
|
|
3098 | inline_size void |
3822 | inline_size void ecb_cold |
3099 | ev_check_2625 (EV_P) |
3823 | ev_check_2625 (EV_P) |
3100 | { |
3824 | { |
3101 | /* kernels < 2.6.25 are borked |
3825 | /* kernels < 2.6.25 are borked |
3102 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3826 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3103 | */ |
3827 | */ |
… | |
… | |
3108 | } |
3832 | } |
3109 | |
3833 | |
3110 | inline_size int |
3834 | inline_size int |
3111 | infy_newfd (void) |
3835 | infy_newfd (void) |
3112 | { |
3836 | { |
3113 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
3837 | #if defined IN_CLOEXEC && defined IN_NONBLOCK |
3114 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
3838 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
3115 | if (fd >= 0) |
3839 | if (fd >= 0) |
3116 | return fd; |
3840 | return fd; |
3117 | #endif |
3841 | #endif |
3118 | return inotify_init (); |
3842 | return inotify_init (); |
… | |
… | |
3193 | #else |
3917 | #else |
3194 | # define EV_LSTAT(p,b) lstat (p, b) |
3918 | # define EV_LSTAT(p,b) lstat (p, b) |
3195 | #endif |
3919 | #endif |
3196 | |
3920 | |
3197 | void |
3921 | void |
3198 | ev_stat_stat (EV_P_ ev_stat *w) |
3922 | ev_stat_stat (EV_P_ ev_stat *w) EV_THROW |
3199 | { |
3923 | { |
3200 | if (lstat (w->path, &w->attr) < 0) |
3924 | if (lstat (w->path, &w->attr) < 0) |
3201 | w->attr.st_nlink = 0; |
3925 | w->attr.st_nlink = 0; |
3202 | else if (!w->attr.st_nlink) |
3926 | else if (!w->attr.st_nlink) |
3203 | w->attr.st_nlink = 1; |
3927 | w->attr.st_nlink = 1; |
… | |
… | |
3242 | ev_feed_event (EV_A_ w, EV_STAT); |
3966 | ev_feed_event (EV_A_ w, EV_STAT); |
3243 | } |
3967 | } |
3244 | } |
3968 | } |
3245 | |
3969 | |
3246 | void |
3970 | void |
3247 | ev_stat_start (EV_P_ ev_stat *w) |
3971 | ev_stat_start (EV_P_ ev_stat *w) EV_THROW |
3248 | { |
3972 | { |
3249 | if (expect_false (ev_is_active (w))) |
3973 | if (expect_false (ev_is_active (w))) |
3250 | return; |
3974 | return; |
3251 | |
3975 | |
3252 | ev_stat_stat (EV_A_ w); |
3976 | ev_stat_stat (EV_A_ w); |
… | |
… | |
3273 | |
3997 | |
3274 | EV_FREQUENT_CHECK; |
3998 | EV_FREQUENT_CHECK; |
3275 | } |
3999 | } |
3276 | |
4000 | |
3277 | void |
4001 | void |
3278 | ev_stat_stop (EV_P_ ev_stat *w) |
4002 | ev_stat_stop (EV_P_ ev_stat *w) EV_THROW |
3279 | { |
4003 | { |
3280 | clear_pending (EV_A_ (W)w); |
4004 | clear_pending (EV_A_ (W)w); |
3281 | if (expect_false (!ev_is_active (w))) |
4005 | if (expect_false (!ev_is_active (w))) |
3282 | return; |
4006 | return; |
3283 | |
4007 | |
… | |
… | |
3299 | } |
4023 | } |
3300 | #endif |
4024 | #endif |
3301 | |
4025 | |
3302 | #if EV_IDLE_ENABLE |
4026 | #if EV_IDLE_ENABLE |
3303 | void |
4027 | void |
3304 | ev_idle_start (EV_P_ ev_idle *w) |
4028 | ev_idle_start (EV_P_ ev_idle *w) EV_THROW |
3305 | { |
4029 | { |
3306 | if (expect_false (ev_is_active (w))) |
4030 | if (expect_false (ev_is_active (w))) |
3307 | return; |
4031 | return; |
3308 | |
4032 | |
3309 | pri_adjust (EV_A_ (W)w); |
4033 | pri_adjust (EV_A_ (W)w); |
… | |
… | |
3322 | |
4046 | |
3323 | EV_FREQUENT_CHECK; |
4047 | EV_FREQUENT_CHECK; |
3324 | } |
4048 | } |
3325 | |
4049 | |
3326 | void |
4050 | void |
3327 | ev_idle_stop (EV_P_ ev_idle *w) |
4051 | ev_idle_stop (EV_P_ ev_idle *w) EV_THROW |
3328 | { |
4052 | { |
3329 | clear_pending (EV_A_ (W)w); |
4053 | clear_pending (EV_A_ (W)w); |
3330 | if (expect_false (!ev_is_active (w))) |
4054 | if (expect_false (!ev_is_active (w))) |
3331 | return; |
4055 | return; |
3332 | |
4056 | |
… | |
… | |
3346 | } |
4070 | } |
3347 | #endif |
4071 | #endif |
3348 | |
4072 | |
3349 | #if EV_PREPARE_ENABLE |
4073 | #if EV_PREPARE_ENABLE |
3350 | void |
4074 | void |
3351 | ev_prepare_start (EV_P_ ev_prepare *w) |
4075 | ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW |
3352 | { |
4076 | { |
3353 | if (expect_false (ev_is_active (w))) |
4077 | if (expect_false (ev_is_active (w))) |
3354 | return; |
4078 | return; |
3355 | |
4079 | |
3356 | EV_FREQUENT_CHECK; |
4080 | EV_FREQUENT_CHECK; |
… | |
… | |
3361 | |
4085 | |
3362 | EV_FREQUENT_CHECK; |
4086 | EV_FREQUENT_CHECK; |
3363 | } |
4087 | } |
3364 | |
4088 | |
3365 | void |
4089 | void |
3366 | ev_prepare_stop (EV_P_ ev_prepare *w) |
4090 | ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW |
3367 | { |
4091 | { |
3368 | clear_pending (EV_A_ (W)w); |
4092 | clear_pending (EV_A_ (W)w); |
3369 | if (expect_false (!ev_is_active (w))) |
4093 | if (expect_false (!ev_is_active (w))) |
3370 | return; |
4094 | return; |
3371 | |
4095 | |
… | |
… | |
3384 | } |
4108 | } |
3385 | #endif |
4109 | #endif |
3386 | |
4110 | |
3387 | #if EV_CHECK_ENABLE |
4111 | #if EV_CHECK_ENABLE |
3388 | void |
4112 | void |
3389 | ev_check_start (EV_P_ ev_check *w) |
4113 | ev_check_start (EV_P_ ev_check *w) EV_THROW |
3390 | { |
4114 | { |
3391 | if (expect_false (ev_is_active (w))) |
4115 | if (expect_false (ev_is_active (w))) |
3392 | return; |
4116 | return; |
3393 | |
4117 | |
3394 | EV_FREQUENT_CHECK; |
4118 | EV_FREQUENT_CHECK; |
… | |
… | |
3399 | |
4123 | |
3400 | EV_FREQUENT_CHECK; |
4124 | EV_FREQUENT_CHECK; |
3401 | } |
4125 | } |
3402 | |
4126 | |
3403 | void |
4127 | void |
3404 | ev_check_stop (EV_P_ ev_check *w) |
4128 | ev_check_stop (EV_P_ ev_check *w) EV_THROW |
3405 | { |
4129 | { |
3406 | clear_pending (EV_A_ (W)w); |
4130 | clear_pending (EV_A_ (W)w); |
3407 | if (expect_false (!ev_is_active (w))) |
4131 | if (expect_false (!ev_is_active (w))) |
3408 | return; |
4132 | return; |
3409 | |
4133 | |
… | |
… | |
3422 | } |
4146 | } |
3423 | #endif |
4147 | #endif |
3424 | |
4148 | |
3425 | #if EV_EMBED_ENABLE |
4149 | #if EV_EMBED_ENABLE |
3426 | void noinline |
4150 | void noinline |
3427 | ev_embed_sweep (EV_P_ ev_embed *w) |
4151 | ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW |
3428 | { |
4152 | { |
3429 | ev_loop (w->other, EVLOOP_NONBLOCK); |
4153 | ev_run (w->other, EVRUN_NOWAIT); |
3430 | } |
4154 | } |
3431 | |
4155 | |
3432 | static void |
4156 | static void |
3433 | embed_io_cb (EV_P_ ev_io *io, int revents) |
4157 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3434 | { |
4158 | { |
3435 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
4159 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3436 | |
4160 | |
3437 | if (ev_cb (w)) |
4161 | if (ev_cb (w)) |
3438 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
4162 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3439 | else |
4163 | else |
3440 | ev_loop (w->other, EVLOOP_NONBLOCK); |
4164 | ev_run (w->other, EVRUN_NOWAIT); |
3441 | } |
4165 | } |
3442 | |
4166 | |
3443 | static void |
4167 | static void |
3444 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
4168 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3445 | { |
4169 | { |
… | |
… | |
3449 | EV_P = w->other; |
4173 | EV_P = w->other; |
3450 | |
4174 | |
3451 | while (fdchangecnt) |
4175 | while (fdchangecnt) |
3452 | { |
4176 | { |
3453 | fd_reify (EV_A); |
4177 | fd_reify (EV_A); |
3454 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
4178 | ev_run (EV_A_ EVRUN_NOWAIT); |
3455 | } |
4179 | } |
3456 | } |
4180 | } |
3457 | } |
4181 | } |
3458 | |
4182 | |
3459 | static void |
4183 | static void |
… | |
… | |
3465 | |
4189 | |
3466 | { |
4190 | { |
3467 | EV_P = w->other; |
4191 | EV_P = w->other; |
3468 | |
4192 | |
3469 | ev_loop_fork (EV_A); |
4193 | ev_loop_fork (EV_A); |
3470 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
4194 | ev_run (EV_A_ EVRUN_NOWAIT); |
3471 | } |
4195 | } |
3472 | |
4196 | |
3473 | ev_embed_start (EV_A_ w); |
4197 | ev_embed_start (EV_A_ w); |
3474 | } |
4198 | } |
3475 | |
4199 | |
… | |
… | |
3480 | ev_idle_stop (EV_A_ idle); |
4204 | ev_idle_stop (EV_A_ idle); |
3481 | } |
4205 | } |
3482 | #endif |
4206 | #endif |
3483 | |
4207 | |
3484 | void |
4208 | void |
3485 | ev_embed_start (EV_P_ ev_embed *w) |
4209 | ev_embed_start (EV_P_ ev_embed *w) EV_THROW |
3486 | { |
4210 | { |
3487 | if (expect_false (ev_is_active (w))) |
4211 | if (expect_false (ev_is_active (w))) |
3488 | return; |
4212 | return; |
3489 | |
4213 | |
3490 | { |
4214 | { |
… | |
… | |
3511 | |
4235 | |
3512 | EV_FREQUENT_CHECK; |
4236 | EV_FREQUENT_CHECK; |
3513 | } |
4237 | } |
3514 | |
4238 | |
3515 | void |
4239 | void |
3516 | ev_embed_stop (EV_P_ ev_embed *w) |
4240 | ev_embed_stop (EV_P_ ev_embed *w) EV_THROW |
3517 | { |
4241 | { |
3518 | clear_pending (EV_A_ (W)w); |
4242 | clear_pending (EV_A_ (W)w); |
3519 | if (expect_false (!ev_is_active (w))) |
4243 | if (expect_false (!ev_is_active (w))) |
3520 | return; |
4244 | return; |
3521 | |
4245 | |
… | |
… | |
3531 | } |
4255 | } |
3532 | #endif |
4256 | #endif |
3533 | |
4257 | |
3534 | #if EV_FORK_ENABLE |
4258 | #if EV_FORK_ENABLE |
3535 | void |
4259 | void |
3536 | ev_fork_start (EV_P_ ev_fork *w) |
4260 | ev_fork_start (EV_P_ ev_fork *w) EV_THROW |
3537 | { |
4261 | { |
3538 | if (expect_false (ev_is_active (w))) |
4262 | if (expect_false (ev_is_active (w))) |
3539 | return; |
4263 | return; |
3540 | |
4264 | |
3541 | EV_FREQUENT_CHECK; |
4265 | EV_FREQUENT_CHECK; |
… | |
… | |
3546 | |
4270 | |
3547 | EV_FREQUENT_CHECK; |
4271 | EV_FREQUENT_CHECK; |
3548 | } |
4272 | } |
3549 | |
4273 | |
3550 | void |
4274 | void |
3551 | ev_fork_stop (EV_P_ ev_fork *w) |
4275 | ev_fork_stop (EV_P_ ev_fork *w) EV_THROW |
3552 | { |
4276 | { |
3553 | clear_pending (EV_A_ (W)w); |
4277 | clear_pending (EV_A_ (W)w); |
3554 | if (expect_false (!ev_is_active (w))) |
4278 | if (expect_false (!ev_is_active (w))) |
3555 | return; |
4279 | return; |
3556 | |
4280 | |
… | |
… | |
3567 | |
4291 | |
3568 | EV_FREQUENT_CHECK; |
4292 | EV_FREQUENT_CHECK; |
3569 | } |
4293 | } |
3570 | #endif |
4294 | #endif |
3571 | |
4295 | |
|
|
4296 | #if EV_CLEANUP_ENABLE |
|
|
4297 | void |
|
|
4298 | ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW |
|
|
4299 | { |
|
|
4300 | if (expect_false (ev_is_active (w))) |
|
|
4301 | return; |
|
|
4302 | |
|
|
4303 | EV_FREQUENT_CHECK; |
|
|
4304 | |
|
|
4305 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
4306 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
|
|
4307 | cleanups [cleanupcnt - 1] = w; |
|
|
4308 | |
|
|
4309 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
4310 | ev_unref (EV_A); |
|
|
4311 | EV_FREQUENT_CHECK; |
|
|
4312 | } |
|
|
4313 | |
|
|
4314 | void |
|
|
4315 | ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW |
|
|
4316 | { |
|
|
4317 | clear_pending (EV_A_ (W)w); |
|
|
4318 | if (expect_false (!ev_is_active (w))) |
|
|
4319 | return; |
|
|
4320 | |
|
|
4321 | EV_FREQUENT_CHECK; |
|
|
4322 | ev_ref (EV_A); |
|
|
4323 | |
|
|
4324 | { |
|
|
4325 | int active = ev_active (w); |
|
|
4326 | |
|
|
4327 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
4328 | ev_active (cleanups [active - 1]) = active; |
|
|
4329 | } |
|
|
4330 | |
|
|
4331 | ev_stop (EV_A_ (W)w); |
|
|
4332 | |
|
|
4333 | EV_FREQUENT_CHECK; |
|
|
4334 | } |
|
|
4335 | #endif |
|
|
4336 | |
3572 | #if EV_ASYNC_ENABLE |
4337 | #if EV_ASYNC_ENABLE |
3573 | void |
4338 | void |
3574 | ev_async_start (EV_P_ ev_async *w) |
4339 | ev_async_start (EV_P_ ev_async *w) EV_THROW |
3575 | { |
4340 | { |
3576 | if (expect_false (ev_is_active (w))) |
4341 | if (expect_false (ev_is_active (w))) |
3577 | return; |
4342 | return; |
|
|
4343 | |
|
|
4344 | w->sent = 0; |
3578 | |
4345 | |
3579 | evpipe_init (EV_A); |
4346 | evpipe_init (EV_A); |
3580 | |
4347 | |
3581 | EV_FREQUENT_CHECK; |
4348 | EV_FREQUENT_CHECK; |
3582 | |
4349 | |
… | |
… | |
3586 | |
4353 | |
3587 | EV_FREQUENT_CHECK; |
4354 | EV_FREQUENT_CHECK; |
3588 | } |
4355 | } |
3589 | |
4356 | |
3590 | void |
4357 | void |
3591 | ev_async_stop (EV_P_ ev_async *w) |
4358 | ev_async_stop (EV_P_ ev_async *w) EV_THROW |
3592 | { |
4359 | { |
3593 | clear_pending (EV_A_ (W)w); |
4360 | clear_pending (EV_A_ (W)w); |
3594 | if (expect_false (!ev_is_active (w))) |
4361 | if (expect_false (!ev_is_active (w))) |
3595 | return; |
4362 | return; |
3596 | |
4363 | |
… | |
… | |
3607 | |
4374 | |
3608 | EV_FREQUENT_CHECK; |
4375 | EV_FREQUENT_CHECK; |
3609 | } |
4376 | } |
3610 | |
4377 | |
3611 | void |
4378 | void |
3612 | ev_async_send (EV_P_ ev_async *w) |
4379 | ev_async_send (EV_P_ ev_async *w) EV_THROW |
3613 | { |
4380 | { |
3614 | w->sent = 1; |
4381 | w->sent = 1; |
3615 | evpipe_write (EV_A_ &async_pending); |
4382 | evpipe_write (EV_A_ &async_pending); |
3616 | } |
4383 | } |
3617 | #endif |
4384 | #endif |
… | |
… | |
3654 | |
4421 | |
3655 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
4422 | once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); |
3656 | } |
4423 | } |
3657 | |
4424 | |
3658 | void |
4425 | void |
3659 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
4426 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW |
3660 | { |
4427 | { |
3661 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
4428 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
3662 | |
4429 | |
3663 | if (expect_false (!once)) |
4430 | if (expect_false (!once)) |
3664 | { |
4431 | { |
… | |
… | |
3685 | } |
4452 | } |
3686 | |
4453 | |
3687 | /*****************************************************************************/ |
4454 | /*****************************************************************************/ |
3688 | |
4455 | |
3689 | #if EV_WALK_ENABLE |
4456 | #if EV_WALK_ENABLE |
3690 | void |
4457 | void ecb_cold |
3691 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) |
4458 | ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW |
3692 | { |
4459 | { |
3693 | int i, j; |
4460 | int i, j; |
3694 | ev_watcher_list *wl, *wn; |
4461 | ev_watcher_list *wl, *wn; |
3695 | |
4462 | |
3696 | if (types & (EV_IO | EV_EMBED)) |
4463 | if (types & (EV_IO | EV_EMBED)) |
… | |
… | |
3739 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
4506 | cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); |
3740 | #endif |
4507 | #endif |
3741 | |
4508 | |
3742 | #if EV_IDLE_ENABLE |
4509 | #if EV_IDLE_ENABLE |
3743 | if (types & EV_IDLE) |
4510 | if (types & EV_IDLE) |
3744 | for (j = NUMPRI; i--; ) |
4511 | for (j = NUMPRI; j--; ) |
3745 | for (i = idlecnt [j]; i--; ) |
4512 | for (i = idlecnt [j]; i--; ) |
3746 | cb (EV_A_ EV_IDLE, idles [j][i]); |
4513 | cb (EV_A_ EV_IDLE, idles [j][i]); |
3747 | #endif |
4514 | #endif |
3748 | |
4515 | |
3749 | #if EV_FORK_ENABLE |
4516 | #if EV_FORK_ENABLE |
… | |
… | |
3802 | |
4569 | |
3803 | #if EV_MULTIPLICITY |
4570 | #if EV_MULTIPLICITY |
3804 | #include "ev_wrap.h" |
4571 | #include "ev_wrap.h" |
3805 | #endif |
4572 | #endif |
3806 | |
4573 | |
3807 | #ifdef __cplusplus |
|
|
3808 | } |
|
|
3809 | #endif |
|
|
3810 | |
|
|