1 | /* |
1 | /* |
2 | * libev event processing core, watcher management |
2 | * libev event processing core, watcher management |
3 | * |
3 | * |
4 | * Copyright (c) 2007,2008,2009 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007,2008,2009,2010 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 | * |
… | |
… | |
110 | # define EV_USE_EPOLL 0 |
110 | # define EV_USE_EPOLL 0 |
111 | # endif |
111 | # endif |
112 | # endif |
112 | # endif |
113 | |
113 | |
114 | # ifndef EV_USE_KQUEUE |
114 | # ifndef EV_USE_KQUEUE |
115 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
115 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
116 | # define EV_USE_KQUEUE 1 |
116 | # define EV_USE_KQUEUE 1 |
117 | # else |
117 | # else |
118 | # define EV_USE_KQUEUE 0 |
118 | # define EV_USE_KQUEUE 0 |
119 | # endif |
119 | # endif |
120 | # endif |
120 | # endif |
… | |
… | |
133 | # else |
133 | # else |
134 | # define EV_USE_INOTIFY 0 |
134 | # define EV_USE_INOTIFY 0 |
135 | # endif |
135 | # endif |
136 | # endif |
136 | # endif |
137 | |
137 | |
|
|
138 | # ifndef EV_USE_SIGNALFD |
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|
139 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
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140 | # define EV_USE_SIGNALFD 1 |
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141 | # else |
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142 | # define EV_USE_SIGNALFD 0 |
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143 | # endif |
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144 | # endif |
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145 | |
138 | # ifndef EV_USE_EVENTFD |
146 | # ifndef EV_USE_EVENTFD |
139 | # if HAVE_EVENTFD |
147 | # if HAVE_EVENTFD |
140 | # define EV_USE_EVENTFD 1 |
148 | # define EV_USE_EVENTFD 1 |
141 | # else |
149 | # else |
142 | # define EV_USE_EVENTFD 0 |
150 | # define EV_USE_EVENTFD 0 |
… | |
… | |
145 | |
153 | |
146 | #endif |
154 | #endif |
147 | |
155 | |
148 | #include <math.h> |
156 | #include <math.h> |
149 | #include <stdlib.h> |
157 | #include <stdlib.h> |
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|
158 | #include <string.h> |
150 | #include <fcntl.h> |
159 | #include <fcntl.h> |
151 | #include <stddef.h> |
160 | #include <stddef.h> |
152 | |
161 | |
153 | #include <stdio.h> |
162 | #include <stdio.h> |
154 | |
163 | |
155 | #include <assert.h> |
164 | #include <assert.h> |
156 | #include <errno.h> |
165 | #include <errno.h> |
157 | #include <sys/types.h> |
166 | #include <sys/types.h> |
158 | #include <time.h> |
167 | #include <time.h> |
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|
168 | #include <limits.h> |
159 | |
169 | |
160 | #include <signal.h> |
170 | #include <signal.h> |
161 | |
171 | |
162 | #ifdef EV_H |
172 | #ifdef EV_H |
163 | # include EV_H |
173 | # include EV_H |
… | |
… | |
174 | # define WIN32_LEAN_AND_MEAN |
184 | # define WIN32_LEAN_AND_MEAN |
175 | # include <windows.h> |
185 | # include <windows.h> |
176 | # ifndef EV_SELECT_IS_WINSOCKET |
186 | # ifndef EV_SELECT_IS_WINSOCKET |
177 | # define EV_SELECT_IS_WINSOCKET 1 |
187 | # define EV_SELECT_IS_WINSOCKET 1 |
178 | # endif |
188 | # endif |
|
|
189 | # undef EV_AVOID_STDIO |
179 | #endif |
190 | #endif |
180 | |
191 | |
181 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
192 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
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193 | |
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194 | /* try to deduce the maximum number of signals on this platform */ |
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195 | #if defined (EV_NSIG) |
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196 | /* use what's provided */ |
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197 | #elif defined (NSIG) |
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198 | # define EV_NSIG (NSIG) |
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199 | #elif defined(_NSIG) |
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200 | # define EV_NSIG (_NSIG) |
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201 | #elif defined (SIGMAX) |
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|
202 | # define EV_NSIG (SIGMAX+1) |
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203 | #elif defined (SIG_MAX) |
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204 | # define EV_NSIG (SIG_MAX+1) |
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205 | #elif defined (_SIG_MAX) |
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206 | # define EV_NSIG (_SIG_MAX+1) |
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207 | #elif defined (MAXSIG) |
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208 | # define EV_NSIG (MAXSIG+1) |
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209 | #elif defined (MAX_SIG) |
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210 | # define EV_NSIG (MAX_SIG+1) |
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211 | #elif defined (SIGARRAYSIZE) |
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212 | # define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ |
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213 | #elif defined (_sys_nsig) |
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214 | # define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ |
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215 | #else |
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216 | # error "unable to find value for NSIG, please report" |
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217 | /* to make it compile regardless, just remove the above line, */ |
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218 | /* but consider reporting it, too! :) */ |
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219 | # define EV_NSIG 65 |
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|
220 | #endif |
182 | |
221 | |
183 | #ifndef EV_USE_CLOCK_SYSCALL |
222 | #ifndef EV_USE_CLOCK_SYSCALL |
184 | # if __linux && __GLIBC__ >= 2 |
223 | # if __linux && __GLIBC__ >= 2 |
185 | # define EV_USE_CLOCK_SYSCALL 1 |
224 | # define EV_USE_CLOCK_SYSCALL 1 |
186 | # else |
225 | # else |
… | |
… | |
263 | #ifndef EV_USE_EVENTFD |
302 | #ifndef EV_USE_EVENTFD |
264 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
303 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
265 | # define EV_USE_EVENTFD 1 |
304 | # define EV_USE_EVENTFD 1 |
266 | # else |
305 | # else |
267 | # define EV_USE_EVENTFD 0 |
306 | # define EV_USE_EVENTFD 0 |
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|
307 | # endif |
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|
308 | #endif |
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309 | |
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310 | #ifndef EV_USE_SIGNALFD |
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311 | # if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) |
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312 | # define EV_USE_SIGNALFD 1 |
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313 | # else |
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314 | # define EV_USE_SIGNALFD 0 |
268 | # endif |
315 | # endif |
269 | #endif |
316 | #endif |
270 | |
317 | |
271 | #if 0 /* debugging */ |
318 | #if 0 /* debugging */ |
272 | # define EV_VERIFY 3 |
319 | # define EV_VERIFY 3 |
… | |
… | |
300 | # endif |
347 | # endif |
301 | #endif |
348 | #endif |
302 | |
349 | |
303 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
350 | /* this block fixes any misconfiguration where we know we run into trouble otherwise */ |
304 | |
351 | |
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352 | #ifdef _AIX |
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353 | /* AIX has a completely broken poll.h header */ |
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354 | # undef EV_USE_POLL |
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355 | # define EV_USE_POLL 0 |
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356 | #endif |
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357 | |
305 | #ifndef CLOCK_MONOTONIC |
358 | #ifndef CLOCK_MONOTONIC |
306 | # undef EV_USE_MONOTONIC |
359 | # undef EV_USE_MONOTONIC |
307 | # define EV_USE_MONOTONIC 0 |
360 | # define EV_USE_MONOTONIC 0 |
308 | #endif |
361 | #endif |
309 | |
362 | |
… | |
… | |
339 | #endif |
392 | #endif |
340 | |
393 | |
341 | #if EV_USE_EVENTFD |
394 | #if EV_USE_EVENTFD |
342 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
395 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
343 | # include <stdint.h> |
396 | # include <stdint.h> |
|
|
397 | # ifndef EFD_NONBLOCK |
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398 | # define EFD_NONBLOCK O_NONBLOCK |
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399 | # endif |
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|
400 | # ifndef EFD_CLOEXEC |
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|
401 | # ifdef O_CLOEXEC |
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402 | # define EFD_CLOEXEC O_CLOEXEC |
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403 | # else |
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404 | # define EFD_CLOEXEC 02000000 |
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|
405 | # endif |
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|
406 | # endif |
344 | # ifdef __cplusplus |
407 | # ifdef __cplusplus |
345 | extern "C" { |
408 | extern "C" { |
346 | # endif |
409 | # endif |
347 | int eventfd (unsigned int initval, int flags); |
410 | int (eventfd) (unsigned int initval, int flags); |
348 | # ifdef __cplusplus |
411 | # ifdef __cplusplus |
349 | } |
412 | } |
350 | # endif |
413 | # endif |
351 | #endif |
414 | #endif |
|
|
415 | |
|
|
416 | #if EV_USE_SIGNALFD |
|
|
417 | /* our minimum requirement is glibc 2.7 which has the stub, but not the header */ |
|
|
418 | # include <stdint.h> |
|
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419 | # ifndef SFD_NONBLOCK |
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420 | # define SFD_NONBLOCK O_NONBLOCK |
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421 | # endif |
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422 | # ifndef SFD_CLOEXEC |
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423 | # ifdef O_CLOEXEC |
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424 | # define SFD_CLOEXEC O_CLOEXEC |
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425 | # else |
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426 | # define SFD_CLOEXEC 02000000 |
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427 | # endif |
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428 | # endif |
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429 | # ifdef __cplusplus |
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430 | extern "C" { |
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431 | # endif |
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432 | int signalfd (int fd, const sigset_t *mask, int flags); |
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433 | |
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434 | struct signalfd_siginfo |
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435 | { |
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436 | uint32_t ssi_signo; |
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437 | char pad[128 - sizeof (uint32_t)]; |
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438 | }; |
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439 | # ifdef __cplusplus |
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440 | } |
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441 | # endif |
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442 | #endif |
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443 | |
352 | |
444 | |
353 | /**/ |
445 | /**/ |
354 | |
446 | |
355 | #if EV_VERIFY >= 3 |
447 | #if EV_VERIFY >= 3 |
356 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
448 | # define EV_FREQUENT_CHECK ev_loop_verify (EV_A) |
… | |
… | |
368 | */ |
460 | */ |
369 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
461 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
370 | |
462 | |
371 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
463 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
372 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
464 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
373 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
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|
374 | |
465 | |
375 | #if __GNUC__ >= 4 |
466 | #if __GNUC__ >= 4 |
376 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
467 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
377 | # define noinline __attribute__ ((noinline)) |
468 | # define noinline __attribute__ ((noinline)) |
378 | #else |
469 | #else |
… | |
… | |
419 | |
510 | |
420 | #if EV_USE_MONOTONIC |
511 | #if EV_USE_MONOTONIC |
421 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
512 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
422 | #endif |
513 | #endif |
423 | |
514 | |
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515 | #ifndef EV_FD_TO_WIN32_HANDLE |
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516 | # define EV_FD_TO_WIN32_HANDLE(fd) _get_osfhandle (fd) |
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517 | #endif |
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518 | #ifndef EV_WIN32_HANDLE_TO_FD |
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519 | # define EV_WIN32_HANDLE_TO_FD(handle) _open_osfhandle (handle, 0) |
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520 | #endif |
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521 | #ifndef EV_WIN32_CLOSE_FD |
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522 | # define EV_WIN32_CLOSE_FD(fd) close (fd) |
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523 | #endif |
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524 | |
424 | #ifdef _WIN32 |
525 | #ifdef _WIN32 |
425 | # include "ev_win32.c" |
526 | # include "ev_win32.c" |
426 | #endif |
527 | #endif |
427 | |
528 | |
428 | /*****************************************************************************/ |
529 | /*****************************************************************************/ |
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530 | |
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531 | #if EV_AVOID_STDIO |
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532 | static void noinline |
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533 | ev_printerr (const char *msg) |
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534 | { |
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535 | write (STDERR_FILENO, msg, strlen (msg)); |
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536 | } |
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537 | #endif |
429 | |
538 | |
430 | static void (*syserr_cb)(const char *msg); |
539 | static void (*syserr_cb)(const char *msg); |
431 | |
540 | |
432 | void |
541 | void |
433 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
542 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
… | |
… | |
443 | |
552 | |
444 | if (syserr_cb) |
553 | if (syserr_cb) |
445 | syserr_cb (msg); |
554 | syserr_cb (msg); |
446 | else |
555 | else |
447 | { |
556 | { |
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557 | #if EV_AVOID_STDIO |
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558 | const char *err = strerror (errno); |
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559 | |
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560 | ev_printerr (msg); |
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561 | ev_printerr (": "); |
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562 | ev_printerr (err); |
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563 | ev_printerr ("\n"); |
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564 | #else |
448 | perror (msg); |
565 | perror (msg); |
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566 | #endif |
449 | abort (); |
567 | abort (); |
450 | } |
568 | } |
451 | } |
569 | } |
452 | |
570 | |
453 | static void * |
571 | static void * |
454 | ev_realloc_emul (void *ptr, long size) |
572 | ev_realloc_emul (void *ptr, long size) |
455 | { |
573 | { |
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574 | #if __GLIBC__ |
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575 | return realloc (ptr, size); |
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576 | #else |
456 | /* some systems, notably openbsd and darwin, fail to properly |
577 | /* some systems, notably openbsd and darwin, fail to properly |
457 | * implement realloc (x, 0) (as required by both ansi c-98 and |
578 | * implement realloc (x, 0) (as required by both ansi c-89 and |
458 | * the single unix specification, so work around them here. |
579 | * the single unix specification, so work around them here. |
459 | */ |
580 | */ |
460 | |
581 | |
461 | if (size) |
582 | if (size) |
462 | return realloc (ptr, size); |
583 | return realloc (ptr, size); |
463 | |
584 | |
464 | free (ptr); |
585 | free (ptr); |
465 | return 0; |
586 | return 0; |
|
|
587 | #endif |
466 | } |
588 | } |
467 | |
589 | |
468 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
590 | static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; |
469 | |
591 | |
470 | void |
592 | void |
… | |
… | |
478 | { |
600 | { |
479 | ptr = alloc (ptr, size); |
601 | ptr = alloc (ptr, size); |
480 | |
602 | |
481 | if (!ptr && size) |
603 | if (!ptr && size) |
482 | { |
604 | { |
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605 | #if EV_AVOID_STDIO |
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606 | ev_printerr ("libev: memory allocation failed, aborting.\n"); |
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607 | #else |
483 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
608 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
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609 | #endif |
484 | abort (); |
610 | abort (); |
485 | } |
611 | } |
486 | |
612 | |
487 | return ptr; |
613 | return ptr; |
488 | } |
614 | } |
… | |
… | |
490 | #define ev_malloc(size) ev_realloc (0, (size)) |
616 | #define ev_malloc(size) ev_realloc (0, (size)) |
491 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
617 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
492 | |
618 | |
493 | /*****************************************************************************/ |
619 | /*****************************************************************************/ |
494 | |
620 | |
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621 | /* set in reify when reification needed */ |
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622 | #define EV_ANFD_REIFY 1 |
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623 | |
495 | /* file descriptor info structure */ |
624 | /* file descriptor info structure */ |
496 | typedef struct |
625 | typedef struct |
497 | { |
626 | { |
498 | WL head; |
627 | WL head; |
499 | unsigned char events; /* the events watched for */ |
628 | unsigned char events; /* the events watched for */ |
500 | unsigned char reify; /* flag set when this ANFD needs reification */ |
629 | unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ |
501 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
630 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
502 | unsigned char unused; |
631 | unsigned char unused; |
503 | #if EV_USE_EPOLL |
632 | #if EV_USE_EPOLL |
504 | unsigned int egen; /* generation counter to counter epoll bugs */ |
633 | unsigned int egen; /* generation counter to counter epoll bugs */ |
505 | #endif |
634 | #endif |
… | |
… | |
567 | |
696 | |
568 | static int ev_default_loop_ptr; |
697 | static int ev_default_loop_ptr; |
569 | |
698 | |
570 | #endif |
699 | #endif |
571 | |
700 | |
|
|
701 | #if EV_MINIMAL < 2 |
|
|
702 | # define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) |
|
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703 | # define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) |
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704 | # define EV_INVOKE_PENDING invoke_cb (EV_A) |
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705 | #else |
|
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706 | # define EV_RELEASE_CB (void)0 |
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707 | # define EV_ACQUIRE_CB (void)0 |
|
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708 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
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|
709 | #endif |
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710 | |
|
|
711 | #define EVUNLOOP_RECURSE 0x80 |
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712 | |
572 | /*****************************************************************************/ |
713 | /*****************************************************************************/ |
573 | |
714 | |
574 | #ifndef EV_HAVE_EV_TIME |
715 | #ifndef EV_HAVE_EV_TIME |
575 | ev_tstamp |
716 | ev_tstamp |
576 | ev_time (void) |
717 | ev_time (void) |
… | |
… | |
632 | |
773 | |
633 | tv.tv_sec = (time_t)delay; |
774 | tv.tv_sec = (time_t)delay; |
634 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
775 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
635 | |
776 | |
636 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
777 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
637 | /* somehting not guaranteed by newer posix versions, but guaranteed */ |
778 | /* something not guaranteed by newer posix versions, but guaranteed */ |
638 | /* by older ones */ |
779 | /* by older ones */ |
639 | select (0, 0, 0, 0, &tv); |
780 | select (0, 0, 0, 0, &tv); |
640 | #endif |
781 | #endif |
641 | } |
782 | } |
642 | } |
783 | } |
… | |
… | |
750 | } |
891 | } |
751 | |
892 | |
752 | /*****************************************************************************/ |
893 | /*****************************************************************************/ |
753 | |
894 | |
754 | inline_speed void |
895 | inline_speed void |
755 | fd_event (EV_P_ int fd, int revents) |
896 | fd_event_nocheck (EV_P_ int fd, int revents) |
756 | { |
897 | { |
757 | ANFD *anfd = anfds + fd; |
898 | ANFD *anfd = anfds + fd; |
758 | ev_io *w; |
899 | ev_io *w; |
759 | |
900 | |
760 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
901 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
… | |
… | |
764 | if (ev) |
905 | if (ev) |
765 | ev_feed_event (EV_A_ (W)w, ev); |
906 | ev_feed_event (EV_A_ (W)w, ev); |
766 | } |
907 | } |
767 | } |
908 | } |
768 | |
909 | |
|
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910 | /* do not submit kernel events for fds that have reify set */ |
|
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911 | /* because that means they changed while we were polling for new events */ |
|
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912 | inline_speed void |
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913 | fd_event (EV_P_ int fd, int revents) |
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|
914 | { |
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915 | ANFD *anfd = anfds + fd; |
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916 | |
|
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917 | if (expect_true (!anfd->reify)) |
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918 | fd_event_nocheck (EV_A_ fd, revents); |
|
|
919 | } |
|
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920 | |
769 | void |
921 | void |
770 | ev_feed_fd_event (EV_P_ int fd, int revents) |
922 | ev_feed_fd_event (EV_P_ int fd, int revents) |
771 | { |
923 | { |
772 | if (fd >= 0 && fd < anfdmax) |
924 | if (fd >= 0 && fd < anfdmax) |
773 | fd_event (EV_A_ fd, revents); |
925 | fd_event_nocheck (EV_A_ fd, revents); |
774 | } |
926 | } |
775 | |
927 | |
776 | /* make sure the external fd watch events are in-sync */ |
928 | /* make sure the external fd watch events are in-sync */ |
777 | /* with the kernel/libev internal state */ |
929 | /* with the kernel/libev internal state */ |
778 | inline_size void |
930 | inline_size void |
… | |
… | |
793 | |
945 | |
794 | #if EV_SELECT_IS_WINSOCKET |
946 | #if EV_SELECT_IS_WINSOCKET |
795 | if (events) |
947 | if (events) |
796 | { |
948 | { |
797 | unsigned long arg; |
949 | unsigned long arg; |
798 | #ifdef EV_FD_TO_WIN32_HANDLE |
|
|
799 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
950 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
800 | #else |
|
|
801 | anfd->handle = _get_osfhandle (fd); |
|
|
802 | #endif |
|
|
803 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
951 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
804 | } |
952 | } |
805 | #endif |
953 | #endif |
806 | |
954 | |
807 | { |
955 | { |
… | |
… | |
845 | ev_io_stop (EV_A_ w); |
993 | ev_io_stop (EV_A_ w); |
846 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
994 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
847 | } |
995 | } |
848 | } |
996 | } |
849 | |
997 | |
850 | /* check whether the given fd is atcually valid, for error recovery */ |
998 | /* check whether the given fd is actually valid, for error recovery */ |
851 | inline_size int |
999 | inline_size int |
852 | fd_valid (int fd) |
1000 | fd_valid (int fd) |
853 | { |
1001 | { |
854 | #ifdef _WIN32 |
1002 | #ifdef _WIN32 |
855 | return _get_osfhandle (fd) != -1; |
1003 | return EV_FD_TO_WIN32_HANDLE (fd) != -1; |
856 | #else |
1004 | #else |
857 | return fcntl (fd, F_GETFD) != -1; |
1005 | return fcntl (fd, F_GETFD) != -1; |
858 | #endif |
1006 | #endif |
859 | } |
1007 | } |
860 | |
1008 | |
… | |
… | |
878 | |
1026 | |
879 | for (fd = anfdmax; fd--; ) |
1027 | for (fd = anfdmax; fd--; ) |
880 | if (anfds [fd].events) |
1028 | if (anfds [fd].events) |
881 | { |
1029 | { |
882 | fd_kill (EV_A_ fd); |
1030 | fd_kill (EV_A_ fd); |
883 | return; |
1031 | break; |
884 | } |
1032 | } |
885 | } |
1033 | } |
886 | |
1034 | |
887 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
1035 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
888 | static void noinline |
1036 | static void noinline |
… | |
… | |
893 | for (fd = 0; fd < anfdmax; ++fd) |
1041 | for (fd = 0; fd < anfdmax; ++fd) |
894 | if (anfds [fd].events) |
1042 | if (anfds [fd].events) |
895 | { |
1043 | { |
896 | anfds [fd].events = 0; |
1044 | anfds [fd].events = 0; |
897 | anfds [fd].emask = 0; |
1045 | anfds [fd].emask = 0; |
898 | fd_change (EV_A_ fd, EV__IOFDSET | 1); |
1046 | fd_change (EV_A_ fd, EV__IOFDSET | EV_ANFD_REIFY); |
899 | } |
1047 | } |
|
|
1048 | } |
|
|
1049 | |
|
|
1050 | /* used to prepare libev internal fd's */ |
|
|
1051 | /* this is not fork-safe */ |
|
|
1052 | inline_speed void |
|
|
1053 | fd_intern (int fd) |
|
|
1054 | { |
|
|
1055 | #ifdef _WIN32 |
|
|
1056 | unsigned long arg = 1; |
|
|
1057 | ioctlsocket (EV_FD_TO_WIN32_HANDLE (fd), FIONBIO, &arg); |
|
|
1058 | #else |
|
|
1059 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1060 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1061 | #endif |
900 | } |
1062 | } |
901 | |
1063 | |
902 | /*****************************************************************************/ |
1064 | /*****************************************************************************/ |
903 | |
1065 | |
904 | /* |
1066 | /* |
… | |
… | |
978 | |
1140 | |
979 | for (;;) |
1141 | for (;;) |
980 | { |
1142 | { |
981 | int c = k << 1; |
1143 | int c = k << 1; |
982 | |
1144 | |
983 | if (c > N + HEAP0 - 1) |
1145 | if (c >= N + HEAP0) |
984 | break; |
1146 | break; |
985 | |
1147 | |
986 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
1148 | c += c + 1 < N + HEAP0 && ANHE_at (heap [c]) > ANHE_at (heap [c + 1]) |
987 | ? 1 : 0; |
1149 | ? 1 : 0; |
988 | |
1150 | |
… | |
… | |
1024 | |
1186 | |
1025 | /* move an element suitably so it is in a correct place */ |
1187 | /* move an element suitably so it is in a correct place */ |
1026 | inline_size void |
1188 | inline_size void |
1027 | adjustheap (ANHE *heap, int N, int k) |
1189 | adjustheap (ANHE *heap, int N, int k) |
1028 | { |
1190 | { |
1029 | if (k > HEAP0 && ANHE_at (heap [HPARENT (k)]) >= ANHE_at (heap [k])) |
1191 | if (k > HEAP0 && ANHE_at (heap [k]) <= ANHE_at (heap [HPARENT (k)])) |
1030 | upheap (heap, k); |
1192 | upheap (heap, k); |
1031 | else |
1193 | else |
1032 | downheap (heap, N, k); |
1194 | downheap (heap, N, k); |
1033 | } |
1195 | } |
1034 | |
1196 | |
… | |
… | |
1047 | /*****************************************************************************/ |
1209 | /*****************************************************************************/ |
1048 | |
1210 | |
1049 | /* associate signal watchers to a signal signal */ |
1211 | /* associate signal watchers to a signal signal */ |
1050 | typedef struct |
1212 | typedef struct |
1051 | { |
1213 | { |
|
|
1214 | EV_ATOMIC_T pending; |
|
|
1215 | #if EV_MULTIPLICITY |
|
|
1216 | EV_P; |
|
|
1217 | #endif |
1052 | WL head; |
1218 | WL head; |
1053 | EV_ATOMIC_T gotsig; |
|
|
1054 | } ANSIG; |
1219 | } ANSIG; |
1055 | |
1220 | |
1056 | static ANSIG *signals; |
1221 | static ANSIG signals [EV_NSIG - 1]; |
1057 | static int signalmax; |
|
|
1058 | |
|
|
1059 | static EV_ATOMIC_T gotsig; |
|
|
1060 | |
1222 | |
1061 | /*****************************************************************************/ |
1223 | /*****************************************************************************/ |
1062 | |
1224 | |
1063 | /* used to prepare libev internal fd's */ |
1225 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1064 | /* this is not fork-safe */ |
|
|
1065 | inline_speed void |
|
|
1066 | fd_intern (int fd) |
|
|
1067 | { |
|
|
1068 | #ifdef _WIN32 |
|
|
1069 | unsigned long arg = 1; |
|
|
1070 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
1071 | #else |
|
|
1072 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
1073 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
1074 | #endif |
|
|
1075 | } |
|
|
1076 | |
1226 | |
1077 | static void noinline |
1227 | static void noinline |
1078 | evpipe_init (EV_P) |
1228 | evpipe_init (EV_P) |
1079 | { |
1229 | { |
1080 | if (!ev_is_active (&pipe_w)) |
1230 | if (!ev_is_active (&pipe_w)) |
1081 | { |
1231 | { |
1082 | #if EV_USE_EVENTFD |
1232 | # if EV_USE_EVENTFD |
|
|
1233 | evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); |
|
|
1234 | if (evfd < 0 && errno == EINVAL) |
1083 | if ((evfd = eventfd (0, 0)) >= 0) |
1235 | evfd = eventfd (0, 0); |
|
|
1236 | |
|
|
1237 | if (evfd >= 0) |
1084 | { |
1238 | { |
1085 | evpipe [0] = -1; |
1239 | evpipe [0] = -1; |
1086 | fd_intern (evfd); |
1240 | fd_intern (evfd); /* doing it twice doesn't hurt */ |
1087 | ev_io_set (&pipe_w, evfd, EV_READ); |
1241 | ev_io_set (&pipe_w, evfd, EV_READ); |
1088 | } |
1242 | } |
1089 | else |
1243 | else |
1090 | #endif |
1244 | # endif |
1091 | { |
1245 | { |
1092 | while (pipe (evpipe)) |
1246 | while (pipe (evpipe)) |
1093 | ev_syserr ("(libev) error creating signal/async pipe"); |
1247 | ev_syserr ("(libev) error creating signal/async pipe"); |
1094 | |
1248 | |
1095 | fd_intern (evpipe [0]); |
1249 | fd_intern (evpipe [0]); |
… | |
… | |
1106 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1260 | evpipe_write (EV_P_ EV_ATOMIC_T *flag) |
1107 | { |
1261 | { |
1108 | if (!*flag) |
1262 | if (!*flag) |
1109 | { |
1263 | { |
1110 | int old_errno = errno; /* save errno because write might clobber it */ |
1264 | int old_errno = errno; /* save errno because write might clobber it */ |
|
|
1265 | char dummy; |
1111 | |
1266 | |
1112 | *flag = 1; |
1267 | *flag = 1; |
1113 | |
1268 | |
1114 | #if EV_USE_EVENTFD |
1269 | #if EV_USE_EVENTFD |
1115 | if (evfd >= 0) |
1270 | if (evfd >= 0) |
… | |
… | |
1117 | uint64_t counter = 1; |
1272 | uint64_t counter = 1; |
1118 | write (evfd, &counter, sizeof (uint64_t)); |
1273 | write (evfd, &counter, sizeof (uint64_t)); |
1119 | } |
1274 | } |
1120 | else |
1275 | else |
1121 | #endif |
1276 | #endif |
1122 | write (evpipe [1], &old_errno, 1); |
1277 | write (evpipe [1], &dummy, 1); |
1123 | |
1278 | |
1124 | errno = old_errno; |
1279 | errno = old_errno; |
1125 | } |
1280 | } |
1126 | } |
1281 | } |
1127 | |
1282 | |
1128 | /* called whenever the libev signal pipe */ |
1283 | /* called whenever the libev signal pipe */ |
1129 | /* got some events (signal, async) */ |
1284 | /* got some events (signal, async) */ |
1130 | static void |
1285 | static void |
1131 | pipecb (EV_P_ ev_io *iow, int revents) |
1286 | pipecb (EV_P_ ev_io *iow, int revents) |
1132 | { |
1287 | { |
|
|
1288 | int i; |
|
|
1289 | |
1133 | #if EV_USE_EVENTFD |
1290 | #if EV_USE_EVENTFD |
1134 | if (evfd >= 0) |
1291 | if (evfd >= 0) |
1135 | { |
1292 | { |
1136 | uint64_t counter; |
1293 | uint64_t counter; |
1137 | read (evfd, &counter, sizeof (uint64_t)); |
1294 | read (evfd, &counter, sizeof (uint64_t)); |
… | |
… | |
1141 | { |
1298 | { |
1142 | char dummy; |
1299 | char dummy; |
1143 | read (evpipe [0], &dummy, 1); |
1300 | read (evpipe [0], &dummy, 1); |
1144 | } |
1301 | } |
1145 | |
1302 | |
1146 | if (gotsig && ev_is_default_loop (EV_A)) |
1303 | if (sig_pending) |
1147 | { |
1304 | { |
1148 | int signum; |
1305 | sig_pending = 0; |
1149 | gotsig = 0; |
|
|
1150 | |
1306 | |
1151 | for (signum = signalmax; signum--; ) |
1307 | for (i = EV_NSIG - 1; i--; ) |
1152 | if (signals [signum].gotsig) |
1308 | if (expect_false (signals [i].pending)) |
1153 | ev_feed_signal_event (EV_A_ signum + 1); |
1309 | ev_feed_signal_event (EV_A_ i + 1); |
1154 | } |
1310 | } |
1155 | |
1311 | |
1156 | #if EV_ASYNC_ENABLE |
1312 | #if EV_ASYNC_ENABLE |
1157 | if (gotasync) |
1313 | if (async_pending) |
1158 | { |
1314 | { |
1159 | int i; |
1315 | async_pending = 0; |
1160 | gotasync = 0; |
|
|
1161 | |
1316 | |
1162 | for (i = asynccnt; i--; ) |
1317 | for (i = asynccnt; i--; ) |
1163 | if (asyncs [i]->sent) |
1318 | if (asyncs [i]->sent) |
1164 | { |
1319 | { |
1165 | asyncs [i]->sent = 0; |
1320 | asyncs [i]->sent = 0; |
… | |
… | |
1173 | |
1328 | |
1174 | static void |
1329 | static void |
1175 | ev_sighandler (int signum) |
1330 | ev_sighandler (int signum) |
1176 | { |
1331 | { |
1177 | #if EV_MULTIPLICITY |
1332 | #if EV_MULTIPLICITY |
1178 | struct ev_loop *loop = &default_loop_struct; |
1333 | EV_P = signals [signum - 1].loop; |
1179 | #endif |
1334 | #endif |
1180 | |
1335 | |
1181 | #if _WIN32 |
1336 | #ifdef _WIN32 |
1182 | signal (signum, ev_sighandler); |
1337 | signal (signum, ev_sighandler); |
1183 | #endif |
1338 | #endif |
1184 | |
1339 | |
1185 | signals [signum - 1].gotsig = 1; |
1340 | signals [signum - 1].pending = 1; |
1186 | evpipe_write (EV_A_ &gotsig); |
1341 | evpipe_write (EV_A_ &sig_pending); |
1187 | } |
1342 | } |
1188 | |
1343 | |
1189 | void noinline |
1344 | void noinline |
1190 | ev_feed_signal_event (EV_P_ int signum) |
1345 | ev_feed_signal_event (EV_P_ int signum) |
1191 | { |
1346 | { |
1192 | WL w; |
1347 | WL w; |
1193 | |
1348 | |
|
|
1349 | if (expect_false (signum <= 0 || signum > EV_NSIG)) |
|
|
1350 | return; |
|
|
1351 | |
|
|
1352 | --signum; |
|
|
1353 | |
1194 | #if EV_MULTIPLICITY |
1354 | #if EV_MULTIPLICITY |
1195 | assert (("libev: feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
1355 | /* it is permissible to try to feed a signal to the wrong loop */ |
1196 | #endif |
1356 | /* or, likely more useful, feeding a signal nobody is waiting for */ |
1197 | |
1357 | |
1198 | --signum; |
1358 | if (expect_false (signals [signum].loop != EV_A)) |
1199 | |
|
|
1200 | if (signum < 0 || signum >= signalmax) |
|
|
1201 | return; |
1359 | return; |
|
|
1360 | #endif |
1202 | |
1361 | |
1203 | signals [signum].gotsig = 0; |
1362 | signals [signum].pending = 0; |
1204 | |
1363 | |
1205 | for (w = signals [signum].head; w; w = w->next) |
1364 | for (w = signals [signum].head; w; w = w->next) |
1206 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1365 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
1207 | } |
1366 | } |
1208 | |
1367 | |
|
|
1368 | #if EV_USE_SIGNALFD |
|
|
1369 | static void |
|
|
1370 | sigfdcb (EV_P_ ev_io *iow, int revents) |
|
|
1371 | { |
|
|
1372 | struct signalfd_siginfo si[2], *sip; /* these structs are big */ |
|
|
1373 | |
|
|
1374 | for (;;) |
|
|
1375 | { |
|
|
1376 | ssize_t res = read (sigfd, si, sizeof (si)); |
|
|
1377 | |
|
|
1378 | /* not ISO-C, as res might be -1, but works with SuS */ |
|
|
1379 | for (sip = si; (char *)sip < (char *)si + res; ++sip) |
|
|
1380 | ev_feed_signal_event (EV_A_ sip->ssi_signo); |
|
|
1381 | |
|
|
1382 | if (res < (ssize_t)sizeof (si)) |
|
|
1383 | break; |
|
|
1384 | } |
|
|
1385 | } |
|
|
1386 | #endif |
|
|
1387 | |
|
|
1388 | #endif |
|
|
1389 | |
1209 | /*****************************************************************************/ |
1390 | /*****************************************************************************/ |
1210 | |
1391 | |
|
|
1392 | #if EV_CHILD_ENABLE |
1211 | static WL childs [EV_PID_HASHSIZE]; |
1393 | static WL childs [EV_PID_HASHSIZE]; |
1212 | |
|
|
1213 | #ifndef _WIN32 |
|
|
1214 | |
1394 | |
1215 | static ev_signal childev; |
1395 | static ev_signal childev; |
1216 | |
1396 | |
1217 | #ifndef WIFCONTINUED |
1397 | #ifndef WIFCONTINUED |
1218 | # define WIFCONTINUED(status) 0 |
1398 | # define WIFCONTINUED(status) 0 |
… | |
… | |
1357 | ev_backend (EV_P) |
1537 | ev_backend (EV_P) |
1358 | { |
1538 | { |
1359 | return backend; |
1539 | return backend; |
1360 | } |
1540 | } |
1361 | |
1541 | |
|
|
1542 | #if EV_MINIMAL < 2 |
1362 | unsigned int |
1543 | unsigned int |
1363 | ev_loop_count (EV_P) |
1544 | ev_loop_count (EV_P) |
1364 | { |
1545 | { |
1365 | return loop_count; |
1546 | return loop_count; |
1366 | } |
1547 | } |
… | |
… | |
1380 | void |
1561 | void |
1381 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1562 | ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) |
1382 | { |
1563 | { |
1383 | timeout_blocktime = interval; |
1564 | timeout_blocktime = interval; |
1384 | } |
1565 | } |
|
|
1566 | |
|
|
1567 | void |
|
|
1568 | ev_set_userdata (EV_P_ void *data) |
|
|
1569 | { |
|
|
1570 | userdata = data; |
|
|
1571 | } |
|
|
1572 | |
|
|
1573 | void * |
|
|
1574 | ev_userdata (EV_P) |
|
|
1575 | { |
|
|
1576 | return userdata; |
|
|
1577 | } |
|
|
1578 | |
|
|
1579 | void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) |
|
|
1580 | { |
|
|
1581 | invoke_cb = invoke_pending_cb; |
|
|
1582 | } |
|
|
1583 | |
|
|
1584 | void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) |
|
|
1585 | { |
|
|
1586 | release_cb = release; |
|
|
1587 | acquire_cb = acquire; |
|
|
1588 | } |
|
|
1589 | #endif |
1385 | |
1590 | |
1386 | /* initialise a loop structure, must be zero-initialised */ |
1591 | /* initialise a loop structure, must be zero-initialised */ |
1387 | static void noinline |
1592 | static void noinline |
1388 | loop_init (EV_P_ unsigned int flags) |
1593 | loop_init (EV_P_ unsigned int flags) |
1389 | { |
1594 | { |
… | |
… | |
1407 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1612 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
1408 | have_monotonic = 1; |
1613 | have_monotonic = 1; |
1409 | } |
1614 | } |
1410 | #endif |
1615 | #endif |
1411 | |
1616 | |
|
|
1617 | /* pid check not overridable via env */ |
|
|
1618 | #ifndef _WIN32 |
|
|
1619 | if (flags & EVFLAG_FORKCHECK) |
|
|
1620 | curpid = getpid (); |
|
|
1621 | #endif |
|
|
1622 | |
|
|
1623 | if (!(flags & EVFLAG_NOENV) |
|
|
1624 | && !enable_secure () |
|
|
1625 | && getenv ("LIBEV_FLAGS")) |
|
|
1626 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1627 | |
1412 | ev_rt_now = ev_time (); |
1628 | ev_rt_now = ev_time (); |
1413 | mn_now = get_clock (); |
1629 | mn_now = get_clock (); |
1414 | now_floor = mn_now; |
1630 | now_floor = mn_now; |
1415 | rtmn_diff = ev_rt_now - mn_now; |
1631 | rtmn_diff = ev_rt_now - mn_now; |
|
|
1632 | #if EV_MINIMAL < 2 |
1416 | invoke_cb = ev_invoke_pending; |
1633 | invoke_cb = ev_invoke_pending; |
|
|
1634 | #endif |
1417 | |
1635 | |
1418 | io_blocktime = 0.; |
1636 | io_blocktime = 0.; |
1419 | timeout_blocktime = 0.; |
1637 | timeout_blocktime = 0.; |
1420 | backend = 0; |
1638 | backend = 0; |
1421 | backend_fd = -1; |
1639 | backend_fd = -1; |
1422 | gotasync = 0; |
1640 | sig_pending = 0; |
|
|
1641 | #if EV_ASYNC_ENABLE |
|
|
1642 | async_pending = 0; |
|
|
1643 | #endif |
1423 | #if EV_USE_INOTIFY |
1644 | #if EV_USE_INOTIFY |
1424 | fs_fd = -2; |
1645 | fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; |
1425 | #endif |
1646 | #endif |
1426 | |
1647 | #if EV_USE_SIGNALFD |
1427 | /* pid check not overridable via env */ |
1648 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1428 | #ifndef _WIN32 |
|
|
1429 | if (flags & EVFLAG_FORKCHECK) |
|
|
1430 | curpid = getpid (); |
|
|
1431 | #endif |
1649 | #endif |
1432 | |
|
|
1433 | if (!(flags & EVFLAG_NOENV) |
|
|
1434 | && !enable_secure () |
|
|
1435 | && getenv ("LIBEV_FLAGS")) |
|
|
1436 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
1437 | |
1650 | |
1438 | if (!(flags & 0x0000ffffU)) |
1651 | if (!(flags & 0x0000ffffU)) |
1439 | flags |= ev_recommended_backends (); |
1652 | flags |= ev_recommended_backends (); |
1440 | |
1653 | |
1441 | #if EV_USE_PORT |
1654 | #if EV_USE_PORT |
… | |
… | |
1454 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1667 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
1455 | #endif |
1668 | #endif |
1456 | |
1669 | |
1457 | ev_prepare_init (&pending_w, pendingcb); |
1670 | ev_prepare_init (&pending_w, pendingcb); |
1458 | |
1671 | |
|
|
1672 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1459 | ev_init (&pipe_w, pipecb); |
1673 | ev_init (&pipe_w, pipecb); |
1460 | ev_set_priority (&pipe_w, EV_MAXPRI); |
1674 | ev_set_priority (&pipe_w, EV_MAXPRI); |
|
|
1675 | #endif |
1461 | } |
1676 | } |
1462 | } |
1677 | } |
1463 | |
1678 | |
1464 | /* free up a loop structure */ |
1679 | /* free up a loop structure */ |
1465 | static void noinline |
1680 | static void noinline |
… | |
… | |
1467 | { |
1682 | { |
1468 | int i; |
1683 | int i; |
1469 | |
1684 | |
1470 | if (ev_is_active (&pipe_w)) |
1685 | if (ev_is_active (&pipe_w)) |
1471 | { |
1686 | { |
1472 | ev_ref (EV_A); /* signal watcher */ |
1687 | /*ev_ref (EV_A);*/ |
1473 | ev_io_stop (EV_A_ &pipe_w); |
1688 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1474 | |
1689 | |
1475 | #if EV_USE_EVENTFD |
1690 | #if EV_USE_EVENTFD |
1476 | if (evfd >= 0) |
1691 | if (evfd >= 0) |
1477 | close (evfd); |
1692 | close (evfd); |
1478 | #endif |
1693 | #endif |
1479 | |
1694 | |
1480 | if (evpipe [0] >= 0) |
1695 | if (evpipe [0] >= 0) |
1481 | { |
1696 | { |
1482 | close (evpipe [0]); |
1697 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1483 | close (evpipe [1]); |
1698 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1484 | } |
1699 | } |
1485 | } |
1700 | } |
|
|
1701 | |
|
|
1702 | #if EV_USE_SIGNALFD |
|
|
1703 | if (ev_is_active (&sigfd_w)) |
|
|
1704 | close (sigfd); |
|
|
1705 | #endif |
1486 | |
1706 | |
1487 | #if EV_USE_INOTIFY |
1707 | #if EV_USE_INOTIFY |
1488 | if (fs_fd >= 0) |
1708 | if (fs_fd >= 0) |
1489 | close (fs_fd); |
1709 | close (fs_fd); |
1490 | #endif |
1710 | #endif |
… | |
… | |
1514 | #if EV_IDLE_ENABLE |
1734 | #if EV_IDLE_ENABLE |
1515 | array_free (idle, [i]); |
1735 | array_free (idle, [i]); |
1516 | #endif |
1736 | #endif |
1517 | } |
1737 | } |
1518 | |
1738 | |
1519 | ev_free (anfds); anfdmax = 0; |
1739 | ev_free (anfds); anfds = 0; anfdmax = 0; |
1520 | |
1740 | |
1521 | /* have to use the microsoft-never-gets-it-right macro */ |
1741 | /* have to use the microsoft-never-gets-it-right macro */ |
1522 | array_free (rfeed, EMPTY); |
1742 | array_free (rfeed, EMPTY); |
1523 | array_free (fdchange, EMPTY); |
1743 | array_free (fdchange, EMPTY); |
1524 | array_free (timer, EMPTY); |
1744 | array_free (timer, EMPTY); |
… | |
… | |
1559 | |
1779 | |
1560 | if (ev_is_active (&pipe_w)) |
1780 | if (ev_is_active (&pipe_w)) |
1561 | { |
1781 | { |
1562 | /* this "locks" the handlers against writing to the pipe */ |
1782 | /* this "locks" the handlers against writing to the pipe */ |
1563 | /* while we modify the fd vars */ |
1783 | /* while we modify the fd vars */ |
1564 | gotsig = 1; |
1784 | sig_pending = 1; |
1565 | #if EV_ASYNC_ENABLE |
1785 | #if EV_ASYNC_ENABLE |
1566 | gotasync = 1; |
1786 | async_pending = 1; |
1567 | #endif |
1787 | #endif |
1568 | |
1788 | |
1569 | ev_ref (EV_A); |
1789 | ev_ref (EV_A); |
1570 | ev_io_stop (EV_A_ &pipe_w); |
1790 | ev_io_stop (EV_A_ &pipe_w); |
1571 | |
1791 | |
… | |
… | |
1574 | close (evfd); |
1794 | close (evfd); |
1575 | #endif |
1795 | #endif |
1576 | |
1796 | |
1577 | if (evpipe [0] >= 0) |
1797 | if (evpipe [0] >= 0) |
1578 | { |
1798 | { |
1579 | close (evpipe [0]); |
1799 | EV_WIN32_CLOSE_FD (evpipe [0]); |
1580 | close (evpipe [1]); |
1800 | EV_WIN32_CLOSE_FD (evpipe [1]); |
1581 | } |
1801 | } |
1582 | |
1802 | |
|
|
1803 | #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE |
1583 | evpipe_init (EV_A); |
1804 | evpipe_init (EV_A); |
1584 | /* now iterate over everything, in case we missed something */ |
1805 | /* now iterate over everything, in case we missed something */ |
1585 | pipecb (EV_A_ &pipe_w, EV_READ); |
1806 | pipecb (EV_A_ &pipe_w, EV_READ); |
|
|
1807 | #endif |
1586 | } |
1808 | } |
1587 | |
1809 | |
1588 | postfork = 0; |
1810 | postfork = 0; |
1589 | } |
1811 | } |
1590 | |
1812 | |
1591 | #if EV_MULTIPLICITY |
1813 | #if EV_MULTIPLICITY |
1592 | |
1814 | |
1593 | struct ev_loop * |
1815 | struct ev_loop * |
1594 | ev_loop_new (unsigned int flags) |
1816 | ev_loop_new (unsigned int flags) |
1595 | { |
1817 | { |
1596 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1818 | EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1597 | |
1819 | |
1598 | memset (loop, 0, sizeof (struct ev_loop)); |
1820 | memset (EV_A, 0, sizeof (struct ev_loop)); |
1599 | |
|
|
1600 | loop_init (EV_A_ flags); |
1821 | loop_init (EV_A_ flags); |
1601 | |
1822 | |
1602 | if (ev_backend (EV_A)) |
1823 | if (ev_backend (EV_A)) |
1603 | return loop; |
1824 | return EV_A; |
1604 | |
1825 | |
1605 | return 0; |
1826 | return 0; |
1606 | } |
1827 | } |
1607 | |
1828 | |
1608 | void |
1829 | void |
… | |
… | |
1615 | void |
1836 | void |
1616 | ev_loop_fork (EV_P) |
1837 | ev_loop_fork (EV_P) |
1617 | { |
1838 | { |
1618 | postfork = 1; /* must be in line with ev_default_fork */ |
1839 | postfork = 1; /* must be in line with ev_default_fork */ |
1619 | } |
1840 | } |
|
|
1841 | #endif /* multiplicity */ |
1620 | |
1842 | |
1621 | #if EV_VERIFY |
1843 | #if EV_VERIFY |
1622 | static void noinline |
1844 | static void noinline |
1623 | verify_watcher (EV_P_ W w) |
1845 | verify_watcher (EV_P_ W w) |
1624 | { |
1846 | { |
… | |
… | |
1652 | verify_watcher (EV_A_ ws [cnt]); |
1874 | verify_watcher (EV_A_ ws [cnt]); |
1653 | } |
1875 | } |
1654 | } |
1876 | } |
1655 | #endif |
1877 | #endif |
1656 | |
1878 | |
|
|
1879 | #if EV_MINIMAL < 2 |
1657 | void |
1880 | void |
1658 | ev_loop_verify (EV_P) |
1881 | ev_loop_verify (EV_P) |
1659 | { |
1882 | { |
1660 | #if EV_VERIFY |
1883 | #if EV_VERIFY |
1661 | int i; |
1884 | int i; |
… | |
… | |
1702 | #if EV_ASYNC_ENABLE |
1925 | #if EV_ASYNC_ENABLE |
1703 | assert (asyncmax >= asynccnt); |
1926 | assert (asyncmax >= asynccnt); |
1704 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1927 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1705 | #endif |
1928 | #endif |
1706 | |
1929 | |
|
|
1930 | #if EV_PREPARE_ENABLE |
1707 | assert (preparemax >= preparecnt); |
1931 | assert (preparemax >= preparecnt); |
1708 | array_verify (EV_A_ (W *)prepares, preparecnt); |
1932 | array_verify (EV_A_ (W *)prepares, preparecnt); |
|
|
1933 | #endif |
1709 | |
1934 | |
|
|
1935 | #if EV_CHECK_ENABLE |
1710 | assert (checkmax >= checkcnt); |
1936 | assert (checkmax >= checkcnt); |
1711 | array_verify (EV_A_ (W *)checks, checkcnt); |
1937 | array_verify (EV_A_ (W *)checks, checkcnt); |
|
|
1938 | #endif |
1712 | |
1939 | |
1713 | # if 0 |
1940 | # if 0 |
|
|
1941 | #if EV_CHILD_ENABLE |
1714 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1942 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
1715 | for (signum = signalmax; signum--; ) if (signals [signum].gotsig) |
1943 | for (signum = EV_NSIG; signum--; ) if (signals [signum].pending) |
1716 | # endif |
1944 | #endif |
1717 | #endif |
1945 | # endif |
|
|
1946 | #endif |
1718 | } |
1947 | } |
1719 | |
1948 | #endif |
1720 | #endif /* multiplicity */ |
|
|
1721 | |
1949 | |
1722 | #if EV_MULTIPLICITY |
1950 | #if EV_MULTIPLICITY |
1723 | struct ev_loop * |
1951 | struct ev_loop * |
1724 | ev_default_loop_init (unsigned int flags) |
1952 | ev_default_loop_init (unsigned int flags) |
1725 | #else |
1953 | #else |
… | |
… | |
1728 | #endif |
1956 | #endif |
1729 | { |
1957 | { |
1730 | if (!ev_default_loop_ptr) |
1958 | if (!ev_default_loop_ptr) |
1731 | { |
1959 | { |
1732 | #if EV_MULTIPLICITY |
1960 | #if EV_MULTIPLICITY |
1733 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
1961 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
1734 | #else |
1962 | #else |
1735 | ev_default_loop_ptr = 1; |
1963 | ev_default_loop_ptr = 1; |
1736 | #endif |
1964 | #endif |
1737 | |
1965 | |
1738 | loop_init (EV_A_ flags); |
1966 | loop_init (EV_A_ flags); |
1739 | |
1967 | |
1740 | if (ev_backend (EV_A)) |
1968 | if (ev_backend (EV_A)) |
1741 | { |
1969 | { |
1742 | #ifndef _WIN32 |
1970 | #if EV_CHILD_ENABLE |
1743 | ev_signal_init (&childev, childcb, SIGCHLD); |
1971 | ev_signal_init (&childev, childcb, SIGCHLD); |
1744 | ev_set_priority (&childev, EV_MAXPRI); |
1972 | ev_set_priority (&childev, EV_MAXPRI); |
1745 | ev_signal_start (EV_A_ &childev); |
1973 | ev_signal_start (EV_A_ &childev); |
1746 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1974 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1747 | #endif |
1975 | #endif |
… | |
… | |
1755 | |
1983 | |
1756 | void |
1984 | void |
1757 | ev_default_destroy (void) |
1985 | ev_default_destroy (void) |
1758 | { |
1986 | { |
1759 | #if EV_MULTIPLICITY |
1987 | #if EV_MULTIPLICITY |
1760 | struct ev_loop *loop = ev_default_loop_ptr; |
1988 | EV_P = ev_default_loop_ptr; |
1761 | #endif |
1989 | #endif |
1762 | |
1990 | |
1763 | ev_default_loop_ptr = 0; |
1991 | ev_default_loop_ptr = 0; |
1764 | |
1992 | |
1765 | #ifndef _WIN32 |
1993 | #if EV_CHILD_ENABLE |
1766 | ev_ref (EV_A); /* child watcher */ |
1994 | ev_ref (EV_A); /* child watcher */ |
1767 | ev_signal_stop (EV_A_ &childev); |
1995 | ev_signal_stop (EV_A_ &childev); |
1768 | #endif |
1996 | #endif |
1769 | |
1997 | |
1770 | loop_destroy (EV_A); |
1998 | loop_destroy (EV_A); |
… | |
… | |
1772 | |
2000 | |
1773 | void |
2001 | void |
1774 | ev_default_fork (void) |
2002 | ev_default_fork (void) |
1775 | { |
2003 | { |
1776 | #if EV_MULTIPLICITY |
2004 | #if EV_MULTIPLICITY |
1777 | struct ev_loop *loop = ev_default_loop_ptr; |
2005 | EV_P = ev_default_loop_ptr; |
1778 | #endif |
2006 | #endif |
1779 | |
2007 | |
1780 | postfork = 1; /* must be in line with ev_loop_fork */ |
2008 | postfork = 1; /* must be in line with ev_loop_fork */ |
1781 | } |
2009 | } |
1782 | |
2010 | |
… | |
… | |
1786 | ev_invoke (EV_P_ void *w, int revents) |
2014 | ev_invoke (EV_P_ void *w, int revents) |
1787 | { |
2015 | { |
1788 | EV_CB_INVOKE ((W)w, revents); |
2016 | EV_CB_INVOKE ((W)w, revents); |
1789 | } |
2017 | } |
1790 | |
2018 | |
1791 | void |
2019 | unsigned int |
|
|
2020 | ev_pending_count (EV_P) |
|
|
2021 | { |
|
|
2022 | int pri; |
|
|
2023 | unsigned int count = 0; |
|
|
2024 | |
|
|
2025 | for (pri = NUMPRI; pri--; ) |
|
|
2026 | count += pendingcnt [pri]; |
|
|
2027 | |
|
|
2028 | return count; |
|
|
2029 | } |
|
|
2030 | |
|
|
2031 | void noinline |
1792 | ev_invoke_pending (EV_P) |
2032 | ev_invoke_pending (EV_P) |
1793 | { |
2033 | { |
1794 | int pri; |
2034 | int pri; |
1795 | |
2035 | |
1796 | for (pri = NUMPRI; pri--; ) |
2036 | for (pri = NUMPRI; pri--; ) |
… | |
… | |
1965 | ANHE_at_cache (*he); |
2205 | ANHE_at_cache (*he); |
1966 | } |
2206 | } |
1967 | } |
2207 | } |
1968 | |
2208 | |
1969 | /* fetch new monotonic and realtime times from the kernel */ |
2209 | /* fetch new monotonic and realtime times from the kernel */ |
1970 | /* also detetc if there was a timejump, and act accordingly */ |
2210 | /* also detect if there was a timejump, and act accordingly */ |
1971 | inline_speed void |
2211 | inline_speed void |
1972 | time_update (EV_P_ ev_tstamp max_block) |
2212 | time_update (EV_P_ ev_tstamp max_block) |
1973 | { |
2213 | { |
1974 | #if EV_USE_MONOTONIC |
2214 | #if EV_USE_MONOTONIC |
1975 | if (expect_true (have_monotonic)) |
2215 | if (expect_true (have_monotonic)) |
… | |
… | |
2035 | } |
2275 | } |
2036 | |
2276 | |
2037 | void |
2277 | void |
2038 | ev_loop (EV_P_ int flags) |
2278 | ev_loop (EV_P_ int flags) |
2039 | { |
2279 | { |
|
|
2280 | #if EV_MINIMAL < 2 |
2040 | ++loop_depth; |
2281 | ++loop_depth; |
|
|
2282 | #endif |
|
|
2283 | |
|
|
2284 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
2041 | |
2285 | |
2042 | loop_done = EVUNLOOP_CANCEL; |
2286 | loop_done = EVUNLOOP_CANCEL; |
2043 | |
2287 | |
2044 | invoke_cb (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
2288 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2045 | |
2289 | |
2046 | do |
2290 | do |
2047 | { |
2291 | { |
2048 | #if EV_VERIFY >= 2 |
2292 | #if EV_VERIFY >= 2 |
2049 | ev_loop_verify (EV_A); |
2293 | ev_loop_verify (EV_A); |
… | |
… | |
2062 | /* we might have forked, so queue fork handlers */ |
2306 | /* we might have forked, so queue fork handlers */ |
2063 | if (expect_false (postfork)) |
2307 | if (expect_false (postfork)) |
2064 | if (forkcnt) |
2308 | if (forkcnt) |
2065 | { |
2309 | { |
2066 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2310 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
2067 | invoke_cb (EV_A); |
2311 | EV_INVOKE_PENDING; |
2068 | } |
2312 | } |
2069 | #endif |
2313 | #endif |
2070 | |
2314 | |
|
|
2315 | #if EV_PREPARE_ENABLE |
2071 | /* queue prepare watchers (and execute them) */ |
2316 | /* queue prepare watchers (and execute them) */ |
2072 | if (expect_false (preparecnt)) |
2317 | if (expect_false (preparecnt)) |
2073 | { |
2318 | { |
2074 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2319 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
2075 | invoke_cb (EV_A); |
2320 | EV_INVOKE_PENDING; |
2076 | } |
2321 | } |
|
|
2322 | #endif |
|
|
2323 | |
|
|
2324 | if (expect_false (loop_done)) |
|
|
2325 | break; |
2077 | |
2326 | |
2078 | /* we might have forked, so reify kernel state if necessary */ |
2327 | /* we might have forked, so reify kernel state if necessary */ |
2079 | if (expect_false (postfork)) |
2328 | if (expect_false (postfork)) |
2080 | loop_fork (EV_A); |
2329 | loop_fork (EV_A); |
2081 | |
2330 | |
… | |
… | |
2129 | waittime -= sleeptime; |
2378 | waittime -= sleeptime; |
2130 | } |
2379 | } |
2131 | } |
2380 | } |
2132 | } |
2381 | } |
2133 | |
2382 | |
|
|
2383 | #if EV_MINIMAL < 2 |
2134 | ++loop_count; |
2384 | ++loop_count; |
|
|
2385 | #endif |
|
|
2386 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
2135 | backend_poll (EV_A_ waittime); |
2387 | backend_poll (EV_A_ waittime); |
|
|
2388 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
2136 | |
2389 | |
2137 | /* update ev_rt_now, do magic */ |
2390 | /* update ev_rt_now, do magic */ |
2138 | time_update (EV_A_ waittime + sleeptime); |
2391 | time_update (EV_A_ waittime + sleeptime); |
2139 | } |
2392 | } |
2140 | |
2393 | |
… | |
… | |
2147 | #if EV_IDLE_ENABLE |
2400 | #if EV_IDLE_ENABLE |
2148 | /* queue idle watchers unless other events are pending */ |
2401 | /* queue idle watchers unless other events are pending */ |
2149 | idle_reify (EV_A); |
2402 | idle_reify (EV_A); |
2150 | #endif |
2403 | #endif |
2151 | |
2404 | |
|
|
2405 | #if EV_CHECK_ENABLE |
2152 | /* queue check watchers, to be executed first */ |
2406 | /* queue check watchers, to be executed first */ |
2153 | if (expect_false (checkcnt)) |
2407 | if (expect_false (checkcnt)) |
2154 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
2408 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
2409 | #endif |
2155 | |
2410 | |
2156 | invoke_cb (EV_A); |
2411 | EV_INVOKE_PENDING; |
2157 | } |
2412 | } |
2158 | while (expect_true ( |
2413 | while (expect_true ( |
2159 | activecnt |
2414 | activecnt |
2160 | && !loop_done |
2415 | && !loop_done |
2161 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2416 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2162 | )); |
2417 | )); |
2163 | |
2418 | |
2164 | if (loop_done == EVUNLOOP_ONE) |
2419 | if (loop_done == EVUNLOOP_ONE) |
2165 | loop_done = EVUNLOOP_CANCEL; |
2420 | loop_done = EVUNLOOP_CANCEL; |
2166 | |
2421 | |
|
|
2422 | #if EV_MINIMAL < 2 |
2167 | --loop_depth; |
2423 | --loop_depth; |
|
|
2424 | #endif |
2168 | } |
2425 | } |
2169 | |
2426 | |
2170 | void |
2427 | void |
2171 | ev_unloop (EV_P_ int how) |
2428 | ev_unloop (EV_P_ int how) |
2172 | { |
2429 | { |
… | |
… | |
2223 | inline_size void |
2480 | inline_size void |
2224 | wlist_del (WL *head, WL elem) |
2481 | wlist_del (WL *head, WL elem) |
2225 | { |
2482 | { |
2226 | while (*head) |
2483 | while (*head) |
2227 | { |
2484 | { |
2228 | if (*head == elem) |
2485 | if (expect_true (*head == elem)) |
2229 | { |
2486 | { |
2230 | *head = elem->next; |
2487 | *head = elem->next; |
2231 | return; |
2488 | break; |
2232 | } |
2489 | } |
2233 | |
2490 | |
2234 | head = &(*head)->next; |
2491 | head = &(*head)->next; |
2235 | } |
2492 | } |
2236 | } |
2493 | } |
… | |
… | |
2296 | |
2553 | |
2297 | if (expect_false (ev_is_active (w))) |
2554 | if (expect_false (ev_is_active (w))) |
2298 | return; |
2555 | return; |
2299 | |
2556 | |
2300 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2557 | assert (("libev: ev_io_start called with negative fd", fd >= 0)); |
2301 | assert (("libev: ev_io start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2558 | assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); |
2302 | |
2559 | |
2303 | EV_FREQUENT_CHECK; |
2560 | EV_FREQUENT_CHECK; |
2304 | |
2561 | |
2305 | ev_start (EV_A_ (W)w, 1); |
2562 | ev_start (EV_A_ (W)w, 1); |
2306 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2563 | array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); |
2307 | wlist_add (&anfds[fd].head, (WL)w); |
2564 | wlist_add (&anfds[fd].head, (WL)w); |
2308 | |
2565 | |
2309 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | 1); |
2566 | fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); |
2310 | w->events &= ~EV__IOFDSET; |
2567 | w->events &= ~EV__IOFDSET; |
2311 | |
2568 | |
2312 | EV_FREQUENT_CHECK; |
2569 | EV_FREQUENT_CHECK; |
2313 | } |
2570 | } |
2314 | |
2571 | |
… | |
… | |
2376 | timers [active] = timers [timercnt + HEAP0]; |
2633 | timers [active] = timers [timercnt + HEAP0]; |
2377 | adjustheap (timers, timercnt, active); |
2634 | adjustheap (timers, timercnt, active); |
2378 | } |
2635 | } |
2379 | } |
2636 | } |
2380 | |
2637 | |
2381 | EV_FREQUENT_CHECK; |
|
|
2382 | |
|
|
2383 | ev_at (w) -= mn_now; |
2638 | ev_at (w) -= mn_now; |
2384 | |
2639 | |
2385 | ev_stop (EV_A_ (W)w); |
2640 | ev_stop (EV_A_ (W)w); |
|
|
2641 | |
|
|
2642 | EV_FREQUENT_CHECK; |
2386 | } |
2643 | } |
2387 | |
2644 | |
2388 | void noinline |
2645 | void noinline |
2389 | ev_timer_again (EV_P_ ev_timer *w) |
2646 | ev_timer_again (EV_P_ ev_timer *w) |
2390 | { |
2647 | { |
… | |
… | |
2408 | } |
2665 | } |
2409 | |
2666 | |
2410 | EV_FREQUENT_CHECK; |
2667 | EV_FREQUENT_CHECK; |
2411 | } |
2668 | } |
2412 | |
2669 | |
|
|
2670 | ev_tstamp |
|
|
2671 | ev_timer_remaining (EV_P_ ev_timer *w) |
|
|
2672 | { |
|
|
2673 | return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); |
|
|
2674 | } |
|
|
2675 | |
2413 | #if EV_PERIODIC_ENABLE |
2676 | #if EV_PERIODIC_ENABLE |
2414 | void noinline |
2677 | void noinline |
2415 | ev_periodic_start (EV_P_ ev_periodic *w) |
2678 | ev_periodic_start (EV_P_ ev_periodic *w) |
2416 | { |
2679 | { |
2417 | if (expect_false (ev_is_active (w))) |
2680 | if (expect_false (ev_is_active (w))) |
… | |
… | |
2463 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2726 | periodics [active] = periodics [periodiccnt + HEAP0]; |
2464 | adjustheap (periodics, periodiccnt, active); |
2727 | adjustheap (periodics, periodiccnt, active); |
2465 | } |
2728 | } |
2466 | } |
2729 | } |
2467 | |
2730 | |
2468 | EV_FREQUENT_CHECK; |
|
|
2469 | |
|
|
2470 | ev_stop (EV_A_ (W)w); |
2731 | ev_stop (EV_A_ (W)w); |
|
|
2732 | |
|
|
2733 | EV_FREQUENT_CHECK; |
2471 | } |
2734 | } |
2472 | |
2735 | |
2473 | void noinline |
2736 | void noinline |
2474 | ev_periodic_again (EV_P_ ev_periodic *w) |
2737 | ev_periodic_again (EV_P_ ev_periodic *w) |
2475 | { |
2738 | { |
… | |
… | |
2481 | |
2744 | |
2482 | #ifndef SA_RESTART |
2745 | #ifndef SA_RESTART |
2483 | # define SA_RESTART 0 |
2746 | # define SA_RESTART 0 |
2484 | #endif |
2747 | #endif |
2485 | |
2748 | |
|
|
2749 | #if EV_SIGNAL_ENABLE |
|
|
2750 | |
2486 | void noinline |
2751 | void noinline |
2487 | ev_signal_start (EV_P_ ev_signal *w) |
2752 | ev_signal_start (EV_P_ ev_signal *w) |
2488 | { |
2753 | { |
2489 | #if EV_MULTIPLICITY |
|
|
2490 | assert (("libev: signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
2491 | #endif |
|
|
2492 | if (expect_false (ev_is_active (w))) |
2754 | if (expect_false (ev_is_active (w))) |
2493 | return; |
2755 | return; |
2494 | |
2756 | |
2495 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0)); |
2757 | assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); |
2496 | |
2758 | |
2497 | evpipe_init (EV_A); |
2759 | #if EV_MULTIPLICITY |
|
|
2760 | assert (("libev: a signal must not be attached to two different loops", |
|
|
2761 | !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); |
2498 | |
2762 | |
2499 | EV_FREQUENT_CHECK; |
2763 | signals [w->signum - 1].loop = EV_A; |
|
|
2764 | #endif |
2500 | |
2765 | |
|
|
2766 | EV_FREQUENT_CHECK; |
|
|
2767 | |
|
|
2768 | #if EV_USE_SIGNALFD |
|
|
2769 | if (sigfd == -2) |
2501 | { |
2770 | { |
2502 | #ifndef _WIN32 |
2771 | sigfd = signalfd (-1, &sigfd_set, SFD_NONBLOCK | SFD_CLOEXEC); |
2503 | sigset_t full, prev; |
2772 | if (sigfd < 0 && errno == EINVAL) |
2504 | sigfillset (&full); |
2773 | sigfd = signalfd (-1, &sigfd_set, 0); /* retry without flags */ |
2505 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
2506 | #endif |
|
|
2507 | |
2774 | |
2508 | array_needsize (ANSIG, signals, signalmax, w->signum, array_init_zero); |
2775 | if (sigfd >= 0) |
|
|
2776 | { |
|
|
2777 | fd_intern (sigfd); /* doing it twice will not hurt */ |
2509 | |
2778 | |
2510 | #ifndef _WIN32 |
2779 | sigemptyset (&sigfd_set); |
2511 | sigprocmask (SIG_SETMASK, &prev, 0); |
2780 | |
2512 | #endif |
2781 | ev_io_init (&sigfd_w, sigfdcb, sigfd, EV_READ); |
|
|
2782 | ev_set_priority (&sigfd_w, EV_MAXPRI); |
|
|
2783 | ev_io_start (EV_A_ &sigfd_w); |
|
|
2784 | ev_unref (EV_A); /* signalfd watcher should not keep loop alive */ |
|
|
2785 | } |
2513 | } |
2786 | } |
|
|
2787 | |
|
|
2788 | if (sigfd >= 0) |
|
|
2789 | { |
|
|
2790 | /* TODO: check .head */ |
|
|
2791 | sigaddset (&sigfd_set, w->signum); |
|
|
2792 | sigprocmask (SIG_BLOCK, &sigfd_set, 0); |
|
|
2793 | |
|
|
2794 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2795 | } |
|
|
2796 | #endif |
2514 | |
2797 | |
2515 | ev_start (EV_A_ (W)w, 1); |
2798 | ev_start (EV_A_ (W)w, 1); |
2516 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2799 | wlist_add (&signals [w->signum - 1].head, (WL)w); |
2517 | |
2800 | |
2518 | if (!((WL)w)->next) |
2801 | if (!((WL)w)->next) |
|
|
2802 | # if EV_USE_SIGNALFD |
|
|
2803 | if (sigfd < 0) /*TODO*/ |
|
|
2804 | # endif |
2519 | { |
2805 | { |
2520 | #if _WIN32 |
2806 | # ifdef _WIN32 |
|
|
2807 | evpipe_init (EV_A); |
|
|
2808 | |
2521 | signal (w->signum, ev_sighandler); |
2809 | signal (w->signum, ev_sighandler); |
2522 | #else |
2810 | # else |
2523 | struct sigaction sa; |
2811 | struct sigaction sa; |
|
|
2812 | |
|
|
2813 | evpipe_init (EV_A); |
|
|
2814 | |
2524 | sa.sa_handler = ev_sighandler; |
2815 | sa.sa_handler = ev_sighandler; |
2525 | sigfillset (&sa.sa_mask); |
2816 | sigfillset (&sa.sa_mask); |
2526 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2817 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2527 | sigaction (w->signum, &sa, 0); |
2818 | sigaction (w->signum, &sa, 0); |
|
|
2819 | |
|
|
2820 | sigemptyset (&sa.sa_mask); |
|
|
2821 | sigaddset (&sa.sa_mask, w->signum); |
|
|
2822 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
2528 | #endif |
2823 | #endif |
2529 | } |
2824 | } |
2530 | |
2825 | |
2531 | EV_FREQUENT_CHECK; |
2826 | EV_FREQUENT_CHECK; |
2532 | } |
2827 | } |
2533 | |
2828 | |
2534 | void noinline |
2829 | void noinline |
… | |
… | |
2542 | |
2837 | |
2543 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2838 | wlist_del (&signals [w->signum - 1].head, (WL)w); |
2544 | ev_stop (EV_A_ (W)w); |
2839 | ev_stop (EV_A_ (W)w); |
2545 | |
2840 | |
2546 | if (!signals [w->signum - 1].head) |
2841 | if (!signals [w->signum - 1].head) |
|
|
2842 | { |
|
|
2843 | #if EV_MULTIPLICITY |
|
|
2844 | signals [w->signum - 1].loop = 0; /* unattach from signal */ |
|
|
2845 | #endif |
|
|
2846 | #if EV_USE_SIGNALFD |
|
|
2847 | if (sigfd >= 0) |
|
|
2848 | { |
|
|
2849 | sigset_t ss; |
|
|
2850 | |
|
|
2851 | sigemptyset (&ss); |
|
|
2852 | sigaddset (&ss, w->signum); |
|
|
2853 | sigdelset (&sigfd_set, w->signum); |
|
|
2854 | |
|
|
2855 | signalfd (sigfd, &sigfd_set, 0); |
|
|
2856 | sigprocmask (SIG_UNBLOCK, &ss, 0); |
|
|
2857 | } |
|
|
2858 | else |
|
|
2859 | #endif |
2547 | signal (w->signum, SIG_DFL); |
2860 | signal (w->signum, SIG_DFL); |
|
|
2861 | } |
2548 | |
2862 | |
2549 | EV_FREQUENT_CHECK; |
2863 | EV_FREQUENT_CHECK; |
2550 | } |
2864 | } |
|
|
2865 | |
|
|
2866 | #endif |
|
|
2867 | |
|
|
2868 | #if EV_CHILD_ENABLE |
2551 | |
2869 | |
2552 | void |
2870 | void |
2553 | ev_child_start (EV_P_ ev_child *w) |
2871 | ev_child_start (EV_P_ ev_child *w) |
2554 | { |
2872 | { |
2555 | #if EV_MULTIPLICITY |
2873 | #if EV_MULTIPLICITY |
… | |
… | |
2579 | ev_stop (EV_A_ (W)w); |
2897 | ev_stop (EV_A_ (W)w); |
2580 | |
2898 | |
2581 | EV_FREQUENT_CHECK; |
2899 | EV_FREQUENT_CHECK; |
2582 | } |
2900 | } |
2583 | |
2901 | |
|
|
2902 | #endif |
|
|
2903 | |
2584 | #if EV_STAT_ENABLE |
2904 | #if EV_STAT_ENABLE |
2585 | |
2905 | |
2586 | # ifdef _WIN32 |
2906 | # ifdef _WIN32 |
2587 | # undef lstat |
2907 | # undef lstat |
2588 | # define lstat(a,b) _stati64 (a,b) |
2908 | # define lstat(a,b) _stati64 (a,b) |
… | |
… | |
2593 | #define MIN_STAT_INTERVAL 0.1074891 |
2913 | #define MIN_STAT_INTERVAL 0.1074891 |
2594 | |
2914 | |
2595 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2915 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
2596 | |
2916 | |
2597 | #if EV_USE_INOTIFY |
2917 | #if EV_USE_INOTIFY |
2598 | # define EV_INOTIFY_BUFSIZE 8192 |
2918 | |
|
|
2919 | /* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ |
|
|
2920 | # define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) |
2599 | |
2921 | |
2600 | static void noinline |
2922 | static void noinline |
2601 | infy_add (EV_P_ ev_stat *w) |
2923 | infy_add (EV_P_ ev_stat *w) |
2602 | { |
2924 | { |
2603 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
2925 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
2604 | |
2926 | |
2605 | if (w->wd < 0) |
2927 | if (w->wd >= 0) |
|
|
2928 | { |
|
|
2929 | struct statfs sfs; |
|
|
2930 | |
|
|
2931 | /* now local changes will be tracked by inotify, but remote changes won't */ |
|
|
2932 | /* unless the filesystem is known to be local, we therefore still poll */ |
|
|
2933 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2934 | |
|
|
2935 | if (!fs_2625) |
|
|
2936 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
2937 | else if (!statfs (w->path, &sfs) |
|
|
2938 | && (sfs.f_type == 0x1373 /* devfs */ |
|
|
2939 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2940 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2941 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2942 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2943 | || sfs.f_type == 0x58465342 /* xfs */)) |
|
|
2944 | w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ |
|
|
2945 | else |
|
|
2946 | w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ |
2606 | { |
2947 | } |
|
|
2948 | else |
|
|
2949 | { |
|
|
2950 | /* can't use inotify, continue to stat */ |
2607 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2951 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
2608 | ev_timer_again (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
2609 | |
2952 | |
2610 | /* monitor some parent directory for speedup hints */ |
2953 | /* if path is not there, monitor some parent directory for speedup hints */ |
2611 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2954 | /* note that exceeding the hardcoded path limit is not a correctness issue, */ |
2612 | /* but an efficiency issue only */ |
2955 | /* but an efficiency issue only */ |
2613 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2956 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
2614 | { |
2957 | { |
2615 | char path [4096]; |
2958 | char path [4096]; |
… | |
… | |
2631 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2974 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
2632 | } |
2975 | } |
2633 | } |
2976 | } |
2634 | |
2977 | |
2635 | if (w->wd >= 0) |
2978 | if (w->wd >= 0) |
2636 | { |
|
|
2637 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2979 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
2638 | |
2980 | |
2639 | /* now local changes will be tracked by inotify, but remote changes won't */ |
2981 | /* now re-arm timer, if required */ |
2640 | /* unless the filesystem it known to be local, we therefore still poll */ |
2982 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2641 | /* also do poll on <2.6.25, but with normal frequency */ |
|
|
2642 | struct statfs sfs; |
|
|
2643 | |
|
|
2644 | if (fs_2625 && !statfs (w->path, &sfs)) |
|
|
2645 | if (sfs.f_type == 0x1373 /* devfs */ |
|
|
2646 | || sfs.f_type == 0xEF53 /* ext2/3 */ |
|
|
2647 | || sfs.f_type == 0x3153464a /* jfs */ |
|
|
2648 | || sfs.f_type == 0x52654973 /* reiser3 */ |
|
|
2649 | || sfs.f_type == 0x01021994 /* tempfs */ |
|
|
2650 | || sfs.f_type == 0x58465342 /* xfs */) |
|
|
2651 | return; |
|
|
2652 | |
|
|
2653 | w->timer.repeat = w->interval ? w->interval : fs_2625 ? NFS_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2654 | ev_timer_again (EV_A_ &w->timer); |
2983 | ev_timer_again (EV_A_ &w->timer); |
2655 | } |
2984 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
2656 | } |
2985 | } |
2657 | |
2986 | |
2658 | static void noinline |
2987 | static void noinline |
2659 | infy_del (EV_P_ ev_stat *w) |
2988 | infy_del (EV_P_ ev_stat *w) |
2660 | { |
2989 | { |
… | |
… | |
2705 | |
3034 | |
2706 | static void |
3035 | static void |
2707 | infy_cb (EV_P_ ev_io *w, int revents) |
3036 | infy_cb (EV_P_ ev_io *w, int revents) |
2708 | { |
3037 | { |
2709 | char buf [EV_INOTIFY_BUFSIZE]; |
3038 | char buf [EV_INOTIFY_BUFSIZE]; |
2710 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
2711 | int ofs; |
3039 | int ofs; |
2712 | int len = read (fs_fd, buf, sizeof (buf)); |
3040 | int len = read (fs_fd, buf, sizeof (buf)); |
2713 | |
3041 | |
2714 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
3042 | for (ofs = 0; ofs < len; ) |
|
|
3043 | { |
|
|
3044 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
2715 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3045 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
3046 | ofs += sizeof (struct inotify_event) + ev->len; |
|
|
3047 | } |
|
|
3048 | } |
|
|
3049 | |
|
|
3050 | inline_size unsigned int |
|
|
3051 | ev_linux_version (void) |
|
|
3052 | { |
|
|
3053 | struct utsname buf; |
|
|
3054 | unsigned int v; |
|
|
3055 | int i; |
|
|
3056 | char *p = buf.release; |
|
|
3057 | |
|
|
3058 | if (uname (&buf)) |
|
|
3059 | return 0; |
|
|
3060 | |
|
|
3061 | for (i = 3+1; --i; ) |
|
|
3062 | { |
|
|
3063 | unsigned int c = 0; |
|
|
3064 | |
|
|
3065 | for (;;) |
|
|
3066 | { |
|
|
3067 | if (*p >= '0' && *p <= '9') |
|
|
3068 | c = c * 10 + *p++ - '0'; |
|
|
3069 | else |
|
|
3070 | { |
|
|
3071 | p += *p == '.'; |
|
|
3072 | break; |
|
|
3073 | } |
|
|
3074 | } |
|
|
3075 | |
|
|
3076 | v = (v << 8) | c; |
|
|
3077 | } |
|
|
3078 | |
|
|
3079 | return v; |
2716 | } |
3080 | } |
2717 | |
3081 | |
2718 | inline_size void |
3082 | inline_size void |
2719 | check_2625 (EV_P) |
3083 | ev_check_2625 (EV_P) |
2720 | { |
3084 | { |
2721 | /* kernels < 2.6.25 are borked |
3085 | /* kernels < 2.6.25 are borked |
2722 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
3086 | * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html |
2723 | */ |
3087 | */ |
2724 | struct utsname buf; |
3088 | if (ev_linux_version () < 0x020619) |
2725 | int major, minor, micro; |
|
|
2726 | |
|
|
2727 | if (uname (&buf)) |
|
|
2728 | return; |
3089 | return; |
2729 | |
3090 | |
2730 | if (sscanf (buf.release, "%d.%d.%d", &major, &minor, µ) != 3) |
|
|
2731 | return; |
|
|
2732 | |
|
|
2733 | if (major < 2 |
|
|
2734 | || (major == 2 && minor < 6) |
|
|
2735 | || (major == 2 && minor == 6 && micro < 25)) |
|
|
2736 | return; |
|
|
2737 | |
|
|
2738 | fs_2625 = 1; |
3091 | fs_2625 = 1; |
|
|
3092 | } |
|
|
3093 | |
|
|
3094 | inline_size int |
|
|
3095 | infy_newfd (void) |
|
|
3096 | { |
|
|
3097 | #if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) |
|
|
3098 | int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); |
|
|
3099 | if (fd >= 0) |
|
|
3100 | return fd; |
|
|
3101 | #endif |
|
|
3102 | return inotify_init (); |
2739 | } |
3103 | } |
2740 | |
3104 | |
2741 | inline_size void |
3105 | inline_size void |
2742 | infy_init (EV_P) |
3106 | infy_init (EV_P) |
2743 | { |
3107 | { |
2744 | if (fs_fd != -2) |
3108 | if (fs_fd != -2) |
2745 | return; |
3109 | return; |
2746 | |
3110 | |
2747 | fs_fd = -1; |
3111 | fs_fd = -1; |
2748 | |
3112 | |
2749 | check_2625 (EV_A); |
3113 | ev_check_2625 (EV_A); |
2750 | |
3114 | |
2751 | fs_fd = inotify_init (); |
3115 | fs_fd = infy_newfd (); |
2752 | |
3116 | |
2753 | if (fs_fd >= 0) |
3117 | if (fs_fd >= 0) |
2754 | { |
3118 | { |
|
|
3119 | fd_intern (fs_fd); |
2755 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
3120 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
2756 | ev_set_priority (&fs_w, EV_MAXPRI); |
3121 | ev_set_priority (&fs_w, EV_MAXPRI); |
2757 | ev_io_start (EV_A_ &fs_w); |
3122 | ev_io_start (EV_A_ &fs_w); |
|
|
3123 | ev_unref (EV_A); |
2758 | } |
3124 | } |
2759 | } |
3125 | } |
2760 | |
3126 | |
2761 | inline_size void |
3127 | inline_size void |
2762 | infy_fork (EV_P) |
3128 | infy_fork (EV_P) |
… | |
… | |
2764 | int slot; |
3130 | int slot; |
2765 | |
3131 | |
2766 | if (fs_fd < 0) |
3132 | if (fs_fd < 0) |
2767 | return; |
3133 | return; |
2768 | |
3134 | |
|
|
3135 | ev_ref (EV_A); |
|
|
3136 | ev_io_stop (EV_A_ &fs_w); |
2769 | close (fs_fd); |
3137 | close (fs_fd); |
2770 | fs_fd = inotify_init (); |
3138 | fs_fd = infy_newfd (); |
|
|
3139 | |
|
|
3140 | if (fs_fd >= 0) |
|
|
3141 | { |
|
|
3142 | fd_intern (fs_fd); |
|
|
3143 | ev_io_set (&fs_w, fs_fd, EV_READ); |
|
|
3144 | ev_io_start (EV_A_ &fs_w); |
|
|
3145 | ev_unref (EV_A); |
|
|
3146 | } |
2771 | |
3147 | |
2772 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
3148 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
2773 | { |
3149 | { |
2774 | WL w_ = fs_hash [slot].head; |
3150 | WL w_ = fs_hash [slot].head; |
2775 | fs_hash [slot].head = 0; |
3151 | fs_hash [slot].head = 0; |
… | |
… | |
2782 | w->wd = -1; |
3158 | w->wd = -1; |
2783 | |
3159 | |
2784 | if (fs_fd >= 0) |
3160 | if (fs_fd >= 0) |
2785 | infy_add (EV_A_ w); /* re-add, no matter what */ |
3161 | infy_add (EV_A_ w); /* re-add, no matter what */ |
2786 | else |
3162 | else |
|
|
3163 | { |
|
|
3164 | w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; |
|
|
3165 | if (ev_is_active (&w->timer)) ev_ref (EV_A); |
2787 | ev_timer_again (EV_A_ &w->timer); |
3166 | ev_timer_again (EV_A_ &w->timer); |
|
|
3167 | if (ev_is_active (&w->timer)) ev_unref (EV_A); |
|
|
3168 | } |
2788 | } |
3169 | } |
2789 | } |
3170 | } |
2790 | } |
3171 | } |
2791 | |
3172 | |
2792 | #endif |
3173 | #endif |
… | |
… | |
2809 | static void noinline |
3190 | static void noinline |
2810 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
3191 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
2811 | { |
3192 | { |
2812 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
3193 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
2813 | |
3194 | |
2814 | /* we copy this here each the time so that */ |
3195 | ev_statdata prev = w->attr; |
2815 | /* prev has the old value when the callback gets invoked */ |
|
|
2816 | w->prev = w->attr; |
|
|
2817 | ev_stat_stat (EV_A_ w); |
3196 | ev_stat_stat (EV_A_ w); |
2818 | |
3197 | |
2819 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
3198 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
2820 | if ( |
3199 | if ( |
2821 | w->prev.st_dev != w->attr.st_dev |
3200 | prev.st_dev != w->attr.st_dev |
2822 | || w->prev.st_ino != w->attr.st_ino |
3201 | || prev.st_ino != w->attr.st_ino |
2823 | || w->prev.st_mode != w->attr.st_mode |
3202 | || prev.st_mode != w->attr.st_mode |
2824 | || w->prev.st_nlink != w->attr.st_nlink |
3203 | || prev.st_nlink != w->attr.st_nlink |
2825 | || w->prev.st_uid != w->attr.st_uid |
3204 | || prev.st_uid != w->attr.st_uid |
2826 | || w->prev.st_gid != w->attr.st_gid |
3205 | || prev.st_gid != w->attr.st_gid |
2827 | || w->prev.st_rdev != w->attr.st_rdev |
3206 | || prev.st_rdev != w->attr.st_rdev |
2828 | || w->prev.st_size != w->attr.st_size |
3207 | || prev.st_size != w->attr.st_size |
2829 | || w->prev.st_atime != w->attr.st_atime |
3208 | || prev.st_atime != w->attr.st_atime |
2830 | || w->prev.st_mtime != w->attr.st_mtime |
3209 | || prev.st_mtime != w->attr.st_mtime |
2831 | || w->prev.st_ctime != w->attr.st_ctime |
3210 | || prev.st_ctime != w->attr.st_ctime |
2832 | ) { |
3211 | ) { |
|
|
3212 | /* we only update w->prev on actual differences */ |
|
|
3213 | /* in case we test more often than invoke the callback, */ |
|
|
3214 | /* to ensure that prev is always different to attr */ |
|
|
3215 | w->prev = prev; |
|
|
3216 | |
2833 | #if EV_USE_INOTIFY |
3217 | #if EV_USE_INOTIFY |
2834 | if (fs_fd >= 0) |
3218 | if (fs_fd >= 0) |
2835 | { |
3219 | { |
2836 | infy_del (EV_A_ w); |
3220 | infy_del (EV_A_ w); |
2837 | infy_add (EV_A_ w); |
3221 | infy_add (EV_A_ w); |
… | |
… | |
2862 | |
3246 | |
2863 | if (fs_fd >= 0) |
3247 | if (fs_fd >= 0) |
2864 | infy_add (EV_A_ w); |
3248 | infy_add (EV_A_ w); |
2865 | else |
3249 | else |
2866 | #endif |
3250 | #endif |
|
|
3251 | { |
2867 | ev_timer_again (EV_A_ &w->timer); |
3252 | ev_timer_again (EV_A_ &w->timer); |
|
|
3253 | ev_unref (EV_A); |
|
|
3254 | } |
2868 | |
3255 | |
2869 | ev_start (EV_A_ (W)w, 1); |
3256 | ev_start (EV_A_ (W)w, 1); |
2870 | |
3257 | |
2871 | EV_FREQUENT_CHECK; |
3258 | EV_FREQUENT_CHECK; |
2872 | } |
3259 | } |
… | |
… | |
2881 | EV_FREQUENT_CHECK; |
3268 | EV_FREQUENT_CHECK; |
2882 | |
3269 | |
2883 | #if EV_USE_INOTIFY |
3270 | #if EV_USE_INOTIFY |
2884 | infy_del (EV_A_ w); |
3271 | infy_del (EV_A_ w); |
2885 | #endif |
3272 | #endif |
|
|
3273 | |
|
|
3274 | if (ev_is_active (&w->timer)) |
|
|
3275 | { |
|
|
3276 | ev_ref (EV_A); |
2886 | ev_timer_stop (EV_A_ &w->timer); |
3277 | ev_timer_stop (EV_A_ &w->timer); |
|
|
3278 | } |
2887 | |
3279 | |
2888 | ev_stop (EV_A_ (W)w); |
3280 | ev_stop (EV_A_ (W)w); |
2889 | |
3281 | |
2890 | EV_FREQUENT_CHECK; |
3282 | EV_FREQUENT_CHECK; |
2891 | } |
3283 | } |
… | |
… | |
2936 | |
3328 | |
2937 | EV_FREQUENT_CHECK; |
3329 | EV_FREQUENT_CHECK; |
2938 | } |
3330 | } |
2939 | #endif |
3331 | #endif |
2940 | |
3332 | |
|
|
3333 | #if EV_PREPARE_ENABLE |
2941 | void |
3334 | void |
2942 | ev_prepare_start (EV_P_ ev_prepare *w) |
3335 | ev_prepare_start (EV_P_ ev_prepare *w) |
2943 | { |
3336 | { |
2944 | if (expect_false (ev_is_active (w))) |
3337 | if (expect_false (ev_is_active (w))) |
2945 | return; |
3338 | return; |
… | |
… | |
2971 | |
3364 | |
2972 | ev_stop (EV_A_ (W)w); |
3365 | ev_stop (EV_A_ (W)w); |
2973 | |
3366 | |
2974 | EV_FREQUENT_CHECK; |
3367 | EV_FREQUENT_CHECK; |
2975 | } |
3368 | } |
|
|
3369 | #endif |
2976 | |
3370 | |
|
|
3371 | #if EV_CHECK_ENABLE |
2977 | void |
3372 | void |
2978 | ev_check_start (EV_P_ ev_check *w) |
3373 | ev_check_start (EV_P_ ev_check *w) |
2979 | { |
3374 | { |
2980 | if (expect_false (ev_is_active (w))) |
3375 | if (expect_false (ev_is_active (w))) |
2981 | return; |
3376 | return; |
… | |
… | |
3007 | |
3402 | |
3008 | ev_stop (EV_A_ (W)w); |
3403 | ev_stop (EV_A_ (W)w); |
3009 | |
3404 | |
3010 | EV_FREQUENT_CHECK; |
3405 | EV_FREQUENT_CHECK; |
3011 | } |
3406 | } |
|
|
3407 | #endif |
3012 | |
3408 | |
3013 | #if EV_EMBED_ENABLE |
3409 | #if EV_EMBED_ENABLE |
3014 | void noinline |
3410 | void noinline |
3015 | ev_embed_sweep (EV_P_ ev_embed *w) |
3411 | ev_embed_sweep (EV_P_ ev_embed *w) |
3016 | { |
3412 | { |
… | |
… | |
3032 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3428 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3033 | { |
3429 | { |
3034 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3430 | ev_embed *w = (ev_embed *)(((char *)prepare) - offsetof (ev_embed, prepare)); |
3035 | |
3431 | |
3036 | { |
3432 | { |
3037 | struct ev_loop *loop = w->other; |
3433 | EV_P = w->other; |
3038 | |
3434 | |
3039 | while (fdchangecnt) |
3435 | while (fdchangecnt) |
3040 | { |
3436 | { |
3041 | fd_reify (EV_A); |
3437 | fd_reify (EV_A); |
3042 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3438 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
… | |
… | |
3050 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3446 | ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); |
3051 | |
3447 | |
3052 | ev_embed_stop (EV_A_ w); |
3448 | ev_embed_stop (EV_A_ w); |
3053 | |
3449 | |
3054 | { |
3450 | { |
3055 | struct ev_loop *loop = w->other; |
3451 | EV_P = w->other; |
3056 | |
3452 | |
3057 | ev_loop_fork (EV_A); |
3453 | ev_loop_fork (EV_A); |
3058 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3454 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3059 | } |
3455 | } |
3060 | |
3456 | |
… | |
… | |
3074 | { |
3470 | { |
3075 | if (expect_false (ev_is_active (w))) |
3471 | if (expect_false (ev_is_active (w))) |
3076 | return; |
3472 | return; |
3077 | |
3473 | |
3078 | { |
3474 | { |
3079 | struct ev_loop *loop = w->other; |
3475 | EV_P = w->other; |
3080 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3476 | assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
3081 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3477 | ev_io_init (&w->io, embed_io_cb, backend_fd, EV_READ); |
3082 | } |
3478 | } |
3083 | |
3479 | |
3084 | EV_FREQUENT_CHECK; |
3480 | EV_FREQUENT_CHECK; |
… | |
… | |
3111 | |
3507 | |
3112 | ev_io_stop (EV_A_ &w->io); |
3508 | ev_io_stop (EV_A_ &w->io); |
3113 | ev_prepare_stop (EV_A_ &w->prepare); |
3509 | ev_prepare_stop (EV_A_ &w->prepare); |
3114 | ev_fork_stop (EV_A_ &w->fork); |
3510 | ev_fork_stop (EV_A_ &w->fork); |
3115 | |
3511 | |
|
|
3512 | ev_stop (EV_A_ (W)w); |
|
|
3513 | |
3116 | EV_FREQUENT_CHECK; |
3514 | EV_FREQUENT_CHECK; |
3117 | } |
3515 | } |
3118 | #endif |
3516 | #endif |
3119 | |
3517 | |
3120 | #if EV_FORK_ENABLE |
3518 | #if EV_FORK_ENABLE |
… | |
… | |
3196 | |
3594 | |
3197 | void |
3595 | void |
3198 | ev_async_send (EV_P_ ev_async *w) |
3596 | ev_async_send (EV_P_ ev_async *w) |
3199 | { |
3597 | { |
3200 | w->sent = 1; |
3598 | w->sent = 1; |
3201 | evpipe_write (EV_A_ &gotasync); |
3599 | evpipe_write (EV_A_ &async_pending); |
3202 | } |
3600 | } |
3203 | #endif |
3601 | #endif |
3204 | |
3602 | |
3205 | /*****************************************************************************/ |
3603 | /*****************************************************************************/ |
3206 | |
3604 | |
… | |
… | |
3343 | if (types & EV_ASYNC) |
3741 | if (types & EV_ASYNC) |
3344 | for (i = asynccnt; i--; ) |
3742 | for (i = asynccnt; i--; ) |
3345 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3743 | cb (EV_A_ EV_ASYNC, asyncs [i]); |
3346 | #endif |
3744 | #endif |
3347 | |
3745 | |
|
|
3746 | #if EV_PREPARE_ENABLE |
3348 | if (types & EV_PREPARE) |
3747 | if (types & EV_PREPARE) |
3349 | for (i = preparecnt; i--; ) |
3748 | for (i = preparecnt; i--; ) |
3350 | #if EV_EMBED_ENABLE |
3749 | # if EV_EMBED_ENABLE |
3351 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3750 | if (ev_cb (prepares [i]) != embed_prepare_cb) |
3352 | #endif |
3751 | # endif |
3353 | cb (EV_A_ EV_PREPARE, prepares [i]); |
3752 | cb (EV_A_ EV_PREPARE, prepares [i]); |
|
|
3753 | #endif |
3354 | |
3754 | |
|
|
3755 | #if EV_CHECK_ENABLE |
3355 | if (types & EV_CHECK) |
3756 | if (types & EV_CHECK) |
3356 | for (i = checkcnt; i--; ) |
3757 | for (i = checkcnt; i--; ) |
3357 | cb (EV_A_ EV_CHECK, checks [i]); |
3758 | cb (EV_A_ EV_CHECK, checks [i]); |
|
|
3759 | #endif |
3358 | |
3760 | |
|
|
3761 | #if EV_SIGNAL_ENABLE |
3359 | if (types & EV_SIGNAL) |
3762 | if (types & EV_SIGNAL) |
3360 | for (i = 0; i < signalmax; ++i) |
3763 | for (i = 0; i < EV_NSIG - 1; ++i) |
3361 | for (wl = signals [i].head; wl; ) |
3764 | for (wl = signals [i].head; wl; ) |
3362 | { |
3765 | { |
3363 | wn = wl->next; |
3766 | wn = wl->next; |
3364 | cb (EV_A_ EV_SIGNAL, wl); |
3767 | cb (EV_A_ EV_SIGNAL, wl); |
3365 | wl = wn; |
3768 | wl = wn; |
3366 | } |
3769 | } |
|
|
3770 | #endif |
3367 | |
3771 | |
|
|
3772 | #if EV_CHILD_ENABLE |
3368 | if (types & EV_CHILD) |
3773 | if (types & EV_CHILD) |
3369 | for (i = EV_PID_HASHSIZE; i--; ) |
3774 | for (i = EV_PID_HASHSIZE; i--; ) |
3370 | for (wl = childs [i]; wl; ) |
3775 | for (wl = childs [i]; wl; ) |
3371 | { |
3776 | { |
3372 | wn = wl->next; |
3777 | wn = wl->next; |
3373 | cb (EV_A_ EV_CHILD, wl); |
3778 | cb (EV_A_ EV_CHILD, wl); |
3374 | wl = wn; |
3779 | wl = wn; |
3375 | } |
3780 | } |
|
|
3781 | #endif |
3376 | /* EV_STAT 0x00001000 /* stat data changed */ |
3782 | /* EV_STAT 0x00001000 /* stat data changed */ |
3377 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3783 | /* EV_EMBED 0x00010000 /* embedded event loop needs sweep */ |
3378 | } |
3784 | } |
3379 | #endif |
3785 | #endif |
3380 | |
3786 | |