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 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 | * |
… | |
… | |
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 |
… | |
… | |
77 | # ifndef EV_USE_REALTIME |
73 | # ifndef EV_USE_REALTIME |
78 | # define EV_USE_REALTIME 0 |
74 | # define EV_USE_REALTIME 0 |
79 | # endif |
75 | # endif |
80 | # endif |
76 | # endif |
81 | |
77 | |
|
|
78 | # if HAVE_NANOSLEEP |
82 | # ifndef EV_USE_NANOSLEEP |
79 | # ifndef EV_USE_NANOSLEEP |
83 | # if HAVE_NANOSLEEP |
|
|
84 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
80 | # define EV_USE_NANOSLEEP EV_FEATURE_OS |
|
|
81 | # endif |
85 | # else |
82 | # else |
|
|
83 | # undef EV_USE_NANOSLEEP |
86 | # define EV_USE_NANOSLEEP 0 |
84 | # define EV_USE_NANOSLEEP 0 |
|
|
85 | # endif |
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|
86 | |
|
|
87 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
|
|
88 | # ifndef EV_USE_SELECT |
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|
89 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
87 | # endif |
90 | # endif |
|
|
91 | # else |
|
|
92 | # undef EV_USE_SELECT |
|
|
93 | # define EV_USE_SELECT 0 |
88 | # endif |
94 | # endif |
89 | |
95 | |
|
|
96 | # if HAVE_POLL && HAVE_POLL_H |
90 | # ifndef EV_USE_SELECT |
97 | # ifndef EV_USE_POLL |
91 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
|
|
92 | # define EV_USE_SELECT EV_FEATURE_BACKENDS |
98 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
93 | # else |
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|
94 | # define EV_USE_SELECT 0 |
|
|
95 | # endif |
99 | # endif |
96 | # endif |
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97 | |
|
|
98 | # ifndef EV_USE_POLL |
|
|
99 | # if HAVE_POLL && HAVE_POLL_H |
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|
100 | # define EV_USE_POLL EV_FEATURE_BACKENDS |
|
|
101 | # else |
100 | # else |
|
|
101 | # undef EV_USE_POLL |
102 | # define EV_USE_POLL 0 |
102 | # define EV_USE_POLL 0 |
103 | # endif |
|
|
104 | # endif |
103 | # endif |
105 | |
104 | |
106 | # ifndef EV_USE_EPOLL |
|
|
107 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
105 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
|
|
106 | # ifndef EV_USE_EPOLL |
108 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
107 | # define EV_USE_EPOLL EV_FEATURE_BACKENDS |
109 | # else |
|
|
110 | # define EV_USE_EPOLL 0 |
|
|
111 | # endif |
108 | # endif |
|
|
109 | # else |
|
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110 | # undef EV_USE_EPOLL |
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|
111 | # define EV_USE_EPOLL 0 |
112 | # endif |
112 | # endif |
113 | |
113 | |
114 | # ifndef EV_USE_KQUEUE |
|
|
115 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
114 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H |
|
|
115 | # ifndef EV_USE_KQUEUE |
116 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
116 | # define EV_USE_KQUEUE EV_FEATURE_BACKENDS |
117 | # else |
|
|
118 | # define EV_USE_KQUEUE 0 |
|
|
119 | # endif |
117 | # endif |
|
|
118 | # else |
|
|
119 | # undef EV_USE_KQUEUE |
|
|
120 | # define EV_USE_KQUEUE 0 |
120 | # endif |
121 | # endif |
121 | |
122 | |
122 | # ifndef EV_USE_PORT |
|
|
123 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
123 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
|
|
124 | # ifndef EV_USE_PORT |
124 | # define EV_USE_PORT EV_FEATURE_BACKENDS |
125 | # define EV_USE_PORT EV_FEATURE_BACKENDS |
125 | # else |
|
|
126 | # define EV_USE_PORT 0 |
|
|
127 | # endif |
126 | # endif |
|
|
127 | # else |
|
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128 | # undef EV_USE_PORT |
|
|
129 | # define EV_USE_PORT 0 |
128 | # endif |
130 | # endif |
129 | |
131 | |
130 | # ifndef EV_USE_INOTIFY |
|
|
131 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
132 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
|
|
133 | # ifndef EV_USE_INOTIFY |
132 | # define EV_USE_INOTIFY EV_FEATURE_OS |
134 | # define EV_USE_INOTIFY EV_FEATURE_OS |
133 | # else |
|
|
134 | # define EV_USE_INOTIFY 0 |
|
|
135 | # endif |
135 | # endif |
|
|
136 | # else |
|
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137 | # undef EV_USE_INOTIFY |
|
|
138 | # define EV_USE_INOTIFY 0 |
136 | # endif |
139 | # endif |
137 | |
140 | |
138 | # ifndef EV_USE_SIGNALFD |
|
|
139 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
141 | # if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H |
|
|
142 | # ifndef EV_USE_SIGNALFD |
140 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
143 | # define EV_USE_SIGNALFD EV_FEATURE_OS |
141 | # else |
|
|
142 | # define EV_USE_SIGNALFD 0 |
|
|
143 | # endif |
144 | # endif |
|
|
145 | # else |
|
|
146 | # undef EV_USE_SIGNALFD |
|
|
147 | # define EV_USE_SIGNALFD 0 |
144 | # endif |
148 | # endif |
145 | |
149 | |
|
|
150 | # if HAVE_EVENTFD |
146 | # ifndef EV_USE_EVENTFD |
151 | # ifndef EV_USE_EVENTFD |
147 | # if HAVE_EVENTFD |
|
|
148 | # define EV_USE_EVENTFD EV_FEATURE_OS |
152 | # define EV_USE_EVENTFD EV_FEATURE_OS |
149 | # else |
|
|
150 | # define EV_USE_EVENTFD 0 |
|
|
151 | # endif |
153 | # endif |
|
|
154 | # else |
|
|
155 | # undef EV_USE_EVENTFD |
|
|
156 | # define EV_USE_EVENTFD 0 |
152 | # endif |
157 | # endif |
153 | |
158 | |
154 | #endif |
159 | #endif |
155 | |
160 | |
156 | #include <math.h> |
161 | #include <math.h> |
… | |
… | |
172 | #ifdef EV_H |
177 | #ifdef EV_H |
173 | # include EV_H |
178 | # include EV_H |
174 | #else |
179 | #else |
175 | # include "ev.h" |
180 | # include "ev.h" |
176 | #endif |
181 | #endif |
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|
182 | |
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|
183 | EV_CPP(extern "C" {) |
177 | |
184 | |
178 | #ifndef _WIN32 |
185 | #ifndef _WIN32 |
179 | # include <sys/time.h> |
186 | # include <sys/time.h> |
180 | # include <sys/wait.h> |
187 | # include <sys/wait.h> |
181 | # include <unistd.h> |
188 | # include <unistd.h> |
… | |
… | |
186 | # ifndef EV_SELECT_IS_WINSOCKET |
193 | # ifndef EV_SELECT_IS_WINSOCKET |
187 | # define EV_SELECT_IS_WINSOCKET 1 |
194 | # define EV_SELECT_IS_WINSOCKET 1 |
188 | # endif |
195 | # endif |
189 | # undef EV_AVOID_STDIO |
196 | # undef EV_AVOID_STDIO |
190 | #endif |
197 | #endif |
|
|
198 | |
|
|
199 | /* OS X, in its infinite idiocy, actually HARDCODES |
|
|
200 | * a limit of 1024 into their select. Where people have brains, |
|
|
201 | * OS X engineers apparently have a vacuum. Or maybe they were |
|
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202 | * ordered to have a vacuum, or they do anything for money. |
|
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203 | * This might help. Or not. |
|
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204 | */ |
|
|
205 | #define _DARWIN_UNLIMITED_SELECT 1 |
191 | |
206 | |
192 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
207 | /* this block tries to deduce configuration from header-defined symbols and defaults */ |
193 | |
208 | |
194 | /* try to deduce the maximum number of signals on this platform */ |
209 | /* try to deduce the maximum number of signals on this platform */ |
195 | #if defined (EV_NSIG) |
210 | #if defined (EV_NSIG) |
… | |
… | |
367 | # include <sys/select.h> |
382 | # include <sys/select.h> |
368 | # endif |
383 | # endif |
369 | #endif |
384 | #endif |
370 | |
385 | |
371 | #if EV_USE_INOTIFY |
386 | #if EV_USE_INOTIFY |
372 | # include <sys/utsname.h> |
|
|
373 | # include <sys/statfs.h> |
387 | # include <sys/statfs.h> |
374 | # include <sys/inotify.h> |
388 | # include <sys/inotify.h> |
375 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
389 | /* some very old inotify.h headers don't have IN_DONT_FOLLOW */ |
376 | # ifndef IN_DONT_FOLLOW |
390 | # ifndef IN_DONT_FOLLOW |
377 | # undef EV_USE_INOTIFY |
391 | # undef EV_USE_INOTIFY |
… | |
… | |
394 | # define EFD_CLOEXEC O_CLOEXEC |
408 | # define EFD_CLOEXEC O_CLOEXEC |
395 | # else |
409 | # else |
396 | # define EFD_CLOEXEC 02000000 |
410 | # define EFD_CLOEXEC 02000000 |
397 | # endif |
411 | # endif |
398 | # endif |
412 | # endif |
399 | # ifdef __cplusplus |
|
|
400 | extern "C" { |
|
|
401 | # endif |
|
|
402 | int (eventfd) (unsigned int initval, int flags); |
413 | EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); |
403 | # ifdef __cplusplus |
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|
404 | } |
|
|
405 | # endif |
|
|
406 | #endif |
414 | #endif |
407 | |
415 | |
408 | #if EV_USE_SIGNALFD |
416 | #if EV_USE_SIGNALFD |
409 | /* 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 */ |
410 | # include <stdint.h> |
418 | # include <stdint.h> |
… | |
… | |
416 | # define SFD_CLOEXEC O_CLOEXEC |
424 | # define SFD_CLOEXEC O_CLOEXEC |
417 | # else |
425 | # else |
418 | # define SFD_CLOEXEC 02000000 |
426 | # define SFD_CLOEXEC 02000000 |
419 | # endif |
427 | # endif |
420 | # endif |
428 | # endif |
421 | # ifdef __cplusplus |
|
|
422 | extern "C" { |
|
|
423 | # endif |
|
|
424 | int signalfd (int fd, const sigset_t *mask, int flags); |
429 | EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); |
425 | |
430 | |
426 | struct signalfd_siginfo |
431 | struct signalfd_siginfo |
427 | { |
432 | { |
428 | uint32_t ssi_signo; |
433 | uint32_t ssi_signo; |
429 | char pad[128 - sizeof (uint32_t)]; |
434 | char pad[128 - sizeof (uint32_t)]; |
430 | }; |
435 | }; |
431 | # ifdef __cplusplus |
|
|
432 | } |
|
|
433 | # endif |
436 | #endif |
434 | #endif |
|
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435 | |
|
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436 | |
437 | |
437 | /**/ |
438 | /**/ |
438 | |
439 | |
439 | #if EV_VERIFY >= 3 |
440 | #if EV_VERIFY >= 3 |
440 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
441 | # define EV_FREQUENT_CHECK ev_verify (EV_A) |
… | |
… | |
453 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
454 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
454 | |
455 | |
455 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
456 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
456 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
457 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
457 | |
458 | |
|
|
459 | #define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) |
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460 | #define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) |
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|
461 | |
458 | #if __GNUC__ >= 4 |
462 | #if __GNUC__ >= 4 |
459 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
463 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
460 | # define noinline __attribute__ ((noinline)) |
464 | # define noinline __attribute__ ((noinline)) |
461 | #else |
465 | #else |
462 | # define expect(expr,value) (expr) |
466 | # define expect(expr,value) (expr) |
… | |
… | |
494 | #define ev_active(w) ((W)(w))->active |
498 | #define ev_active(w) ((W)(w))->active |
495 | #define ev_at(w) ((WT)(w))->at |
499 | #define ev_at(w) ((WT)(w))->at |
496 | |
500 | |
497 | #if EV_USE_REALTIME |
501 | #if EV_USE_REALTIME |
498 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
502 | /* sig_atomic_t is used to avoid per-thread variables or locking but still */ |
499 | /* giving it a reasonably high chance of working on typical architetcures */ |
503 | /* giving it a reasonably high chance of working on typical architectures */ |
500 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
504 | static EV_ATOMIC_T have_realtime; /* did clock_gettime (CLOCK_REALTIME) work? */ |
501 | #endif |
505 | #endif |
502 | |
506 | |
503 | #if EV_USE_MONOTONIC |
507 | #if EV_USE_MONOTONIC |
504 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
508 | static EV_ATOMIC_T have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
… | |
… | |
515 | #endif |
519 | #endif |
516 | |
520 | |
517 | #ifdef _WIN32 |
521 | #ifdef _WIN32 |
518 | # include "ev_win32.c" |
522 | # include "ev_win32.c" |
519 | #endif |
523 | #endif |
|
|
524 | |
|
|
525 | /*****************************************************************************/ |
|
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526 | |
|
|
527 | #ifdef __linux |
|
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528 | # include <sys/utsname.h> |
|
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529 | #endif |
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530 | |
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531 | static unsigned int noinline |
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532 | ev_linux_version (void) |
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533 | { |
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534 | #ifdef __linux |
|
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535 | unsigned int v = 0; |
|
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536 | struct utsname buf; |
|
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537 | int i; |
|
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538 | char *p = buf.release; |
|
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539 | |
|
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540 | if (uname (&buf)) |
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541 | return 0; |
|
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542 | |
|
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543 | for (i = 3+1; --i; ) |
|
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544 | { |
|
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545 | unsigned int c = 0; |
|
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546 | |
|
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547 | for (;;) |
|
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548 | { |
|
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549 | if (*p >= '0' && *p <= '9') |
|
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550 | c = c * 10 + *p++ - '0'; |
|
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551 | else |
|
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552 | { |
|
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553 | p += *p == '.'; |
|
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554 | break; |
|
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555 | } |
|
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556 | } |
|
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557 | |
|
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558 | v = (v << 8) | c; |
|
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559 | } |
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560 | |
|
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561 | return v; |
|
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562 | #else |
|
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563 | return 0; |
|
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564 | #endif |
|
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565 | } |
520 | |
566 | |
521 | /*****************************************************************************/ |
567 | /*****************************************************************************/ |
522 | |
568 | |
523 | #if EV_AVOID_STDIO |
569 | #if EV_AVOID_STDIO |
524 | static void noinline |
570 | static void noinline |
… | |
… | |
545 | if (syserr_cb) |
591 | if (syserr_cb) |
546 | syserr_cb (msg); |
592 | syserr_cb (msg); |
547 | else |
593 | else |
548 | { |
594 | { |
549 | #if EV_AVOID_STDIO |
595 | #if EV_AVOID_STDIO |
550 | const char *err = strerror (errno); |
|
|
551 | |
|
|
552 | ev_printerr (msg); |
596 | ev_printerr (msg); |
553 | ev_printerr (": "); |
597 | ev_printerr (": "); |
554 | ev_printerr (err); |
598 | ev_printerr (strerror (errno)); |
555 | ev_printerr ("\n"); |
599 | ev_printerr ("\n"); |
556 | #else |
600 | #else |
557 | perror (msg); |
601 | perror (msg); |
558 | #endif |
602 | #endif |
559 | abort (); |
603 | abort (); |
… | |
… | |
593 | ptr = alloc (ptr, size); |
637 | ptr = alloc (ptr, size); |
594 | |
638 | |
595 | if (!ptr && size) |
639 | if (!ptr && size) |
596 | { |
640 | { |
597 | #if EV_AVOID_STDIO |
641 | #if EV_AVOID_STDIO |
598 | ev_printerr ("libev: memory allocation failed, aborting.\n"); |
642 | ev_printerr ("(libev) memory allocation failed, aborting.\n"); |
599 | #else |
643 | #else |
600 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
644 | fprintf (stderr, "(libev) cannot allocate %ld bytes, aborting.", size); |
601 | #endif |
645 | #endif |
602 | abort (); |
646 | abort (); |
603 | } |
647 | } |
604 | |
648 | |
605 | return ptr; |
649 | return ptr; |
… | |
… | |
622 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
666 | unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ |
623 | unsigned char unused; |
667 | unsigned char unused; |
624 | #if EV_USE_EPOLL |
668 | #if EV_USE_EPOLL |
625 | unsigned int egen; /* generation counter to counter epoll bugs */ |
669 | unsigned int egen; /* generation counter to counter epoll bugs */ |
626 | #endif |
670 | #endif |
627 | #if EV_SELECT_IS_WINSOCKET |
671 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
628 | SOCKET handle; |
672 | SOCKET handle; |
|
|
673 | #endif |
|
|
674 | #if EV_USE_IOCP |
|
|
675 | OVERLAPPED or, ow; |
629 | #endif |
676 | #endif |
630 | } ANFD; |
677 | } ANFD; |
631 | |
678 | |
632 | /* stores the pending event set for a given watcher */ |
679 | /* stores the pending event set for a given watcher */ |
633 | typedef struct |
680 | typedef struct |
… | |
… | |
698 | # define EV_RELEASE_CB (void)0 |
745 | # define EV_RELEASE_CB (void)0 |
699 | # define EV_ACQUIRE_CB (void)0 |
746 | # define EV_ACQUIRE_CB (void)0 |
700 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
747 | # define EV_INVOKE_PENDING ev_invoke_pending (EV_A) |
701 | #endif |
748 | #endif |
702 | |
749 | |
703 | #define EVUNLOOP_RECURSE 0x80 |
750 | #define EVBREAK_RECURSE 0x80 |
704 | |
751 | |
705 | /*****************************************************************************/ |
752 | /*****************************************************************************/ |
706 | |
753 | |
707 | #ifndef EV_HAVE_EV_TIME |
754 | #ifndef EV_HAVE_EV_TIME |
708 | ev_tstamp |
755 | ev_tstamp |
… | |
… | |
752 | if (delay > 0.) |
799 | if (delay > 0.) |
753 | { |
800 | { |
754 | #if EV_USE_NANOSLEEP |
801 | #if EV_USE_NANOSLEEP |
755 | struct timespec ts; |
802 | struct timespec ts; |
756 | |
803 | |
757 | ts.tv_sec = (time_t)delay; |
804 | EV_TS_SET (ts, delay); |
758 | ts.tv_nsec = (long)((delay - (ev_tstamp)(ts.tv_sec)) * 1e9); |
|
|
759 | |
|
|
760 | nanosleep (&ts, 0); |
805 | nanosleep (&ts, 0); |
761 | #elif defined(_WIN32) |
806 | #elif defined(_WIN32) |
762 | Sleep ((unsigned long)(delay * 1e3)); |
807 | Sleep ((unsigned long)(delay * 1e3)); |
763 | #else |
808 | #else |
764 | struct timeval tv; |
809 | struct timeval tv; |
765 | |
810 | |
766 | tv.tv_sec = (time_t)delay; |
|
|
767 | tv.tv_usec = (long)((delay - (ev_tstamp)(tv.tv_sec)) * 1e6); |
|
|
768 | |
|
|
769 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
811 | /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ |
770 | /* something not guaranteed by newer posix versions, but guaranteed */ |
812 | /* something not guaranteed by newer posix versions, but guaranteed */ |
771 | /* by older ones */ |
813 | /* by older ones */ |
|
|
814 | EV_TV_SET (tv, delay); |
772 | select (0, 0, 0, 0, &tv); |
815 | select (0, 0, 0, 0, &tv); |
773 | #endif |
816 | #endif |
774 | } |
817 | } |
775 | } |
818 | } |
776 | |
819 | |
777 | /*****************************************************************************/ |
820 | /*****************************************************************************/ |
778 | |
821 | |
779 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
822 | #define MALLOC_ROUND 4096 /* prefer to allocate in chunks of this size, must be 2**n and >> 4 longs */ |
780 | |
823 | |
781 | /* find a suitable new size for the given array, */ |
824 | /* find a suitable new size for the given array, */ |
782 | /* hopefully by rounding to a ncie-to-malloc size */ |
825 | /* hopefully by rounding to a nice-to-malloc size */ |
783 | inline_size int |
826 | inline_size int |
784 | array_nextsize (int elem, int cur, int cnt) |
827 | array_nextsize (int elem, int cur, int cnt) |
785 | { |
828 | { |
786 | int ncur = cur + 1; |
829 | int ncur = cur + 1; |
787 | |
830 | |
… | |
… | |
928 | { |
971 | { |
929 | int fd = fdchanges [i]; |
972 | int fd = fdchanges [i]; |
930 | ANFD *anfd = anfds + fd; |
973 | ANFD *anfd = anfds + fd; |
931 | ev_io *w; |
974 | ev_io *w; |
932 | |
975 | |
933 | unsigned char events = 0; |
976 | unsigned char o_events = anfd->events; |
|
|
977 | unsigned char o_reify = anfd->reify; |
934 | |
978 | |
935 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
979 | anfd->reify = 0; |
936 | events |= (unsigned char)w->events; |
|
|
937 | |
980 | |
938 | #if EV_SELECT_IS_WINSOCKET |
981 | #if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP |
939 | if (events) |
982 | if (o_reify & EV__IOFDSET) |
940 | { |
983 | { |
941 | unsigned long arg; |
984 | unsigned long arg; |
942 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
985 | anfd->handle = EV_FD_TO_WIN32_HANDLE (fd); |
943 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
986 | assert (("libev: only socket fds supported in this configuration", ioctlsocket (anfd->handle, FIONREAD, &arg) == 0)); |
|
|
987 | printf ("oi %d %x\n", fd, anfd->handle);//D |
944 | } |
988 | } |
945 | #endif |
989 | #endif |
946 | |
990 | |
|
|
991 | /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ |
947 | { |
992 | { |
948 | unsigned char o_events = anfd->events; |
|
|
949 | unsigned char o_reify = anfd->reify; |
|
|
950 | |
|
|
951 | anfd->reify = 0; |
|
|
952 | anfd->events = events; |
993 | anfd->events = 0; |
953 | |
994 | |
954 | if (o_events != events || o_reify & EV__IOFDSET) |
995 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
|
|
996 | anfd->events |= (unsigned char)w->events; |
|
|
997 | |
|
|
998 | if (o_events != anfd->events) |
|
|
999 | o_reify = EV__IOFDSET; /* actually |= */ |
|
|
1000 | } |
|
|
1001 | |
|
|
1002 | if (o_reify & EV__IOFDSET) |
955 | backend_modify (EV_A_ fd, o_events, events); |
1003 | backend_modify (EV_A_ fd, o_events, anfd->events); |
956 | } |
|
|
957 | } |
1004 | } |
958 | |
1005 | |
959 | fdchangecnt = 0; |
1006 | fdchangecnt = 0; |
960 | } |
1007 | } |
961 | |
1008 | |
… | |
… | |
1054 | } |
1101 | } |
1055 | |
1102 | |
1056 | /*****************************************************************************/ |
1103 | /*****************************************************************************/ |
1057 | |
1104 | |
1058 | /* |
1105 | /* |
1059 | * the heap functions want a real array index. array index 0 uis guaranteed to not |
1106 | * the heap functions want a real array index. array index 0 is guaranteed to not |
1060 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
1107 | * be in-use at any time. the first heap entry is at array [HEAP0]. DHEAP gives |
1061 | * the branching factor of the d-tree. |
1108 | * the branching factor of the d-tree. |
1062 | */ |
1109 | */ |
1063 | |
1110 | |
1064 | /* |
1111 | /* |
… | |
… | |
1264 | uint64_t counter = 1; |
1311 | uint64_t counter = 1; |
1265 | write (evfd, &counter, sizeof (uint64_t)); |
1312 | write (evfd, &counter, sizeof (uint64_t)); |
1266 | } |
1313 | } |
1267 | else |
1314 | else |
1268 | #endif |
1315 | #endif |
|
|
1316 | /* win32 people keep sending patches that change this write() to send() */ |
|
|
1317 | /* and then run away. but send() is wrong, it wants a socket handle on win32 */ |
|
|
1318 | /* so when you think this write should be a send instead, please find out */ |
|
|
1319 | /* where your send() is from - it's definitely not the microsoft send, and */ |
|
|
1320 | /* tell me. thank you. */ |
1269 | write (evpipe [1], &dummy, 1); |
1321 | write (evpipe [1], &dummy, 1); |
1270 | |
1322 | |
1271 | errno = old_errno; |
1323 | errno = old_errno; |
1272 | } |
1324 | } |
1273 | } |
1325 | } |
… | |
… | |
1287 | } |
1339 | } |
1288 | else |
1340 | else |
1289 | #endif |
1341 | #endif |
1290 | { |
1342 | { |
1291 | char dummy; |
1343 | char dummy; |
|
|
1344 | /* see discussion in evpipe_write when you think this read should be recv in win32 */ |
1292 | read (evpipe [0], &dummy, 1); |
1345 | read (evpipe [0], &dummy, 1); |
1293 | } |
1346 | } |
1294 | |
1347 | |
1295 | if (sig_pending) |
1348 | if (sig_pending) |
1296 | { |
1349 | { |
… | |
… | |
1316 | #endif |
1369 | #endif |
1317 | } |
1370 | } |
1318 | |
1371 | |
1319 | /*****************************************************************************/ |
1372 | /*****************************************************************************/ |
1320 | |
1373 | |
|
|
1374 | void |
|
|
1375 | ev_feed_signal (int signum) |
|
|
1376 | { |
|
|
1377 | #if EV_MULTIPLICITY |
|
|
1378 | EV_P = signals [signum - 1].loop; |
|
|
1379 | |
|
|
1380 | if (!EV_A) |
|
|
1381 | return; |
|
|
1382 | #endif |
|
|
1383 | |
|
|
1384 | signals [signum - 1].pending = 1; |
|
|
1385 | evpipe_write (EV_A_ &sig_pending); |
|
|
1386 | } |
|
|
1387 | |
1321 | static void |
1388 | static void |
1322 | ev_sighandler (int signum) |
1389 | ev_sighandler (int signum) |
1323 | { |
1390 | { |
1324 | #if EV_MULTIPLICITY |
|
|
1325 | EV_P = signals [signum - 1].loop; |
|
|
1326 | #endif |
|
|
1327 | |
|
|
1328 | #ifdef _WIN32 |
1391 | #ifdef _WIN32 |
1329 | signal (signum, ev_sighandler); |
1392 | signal (signum, ev_sighandler); |
1330 | #endif |
1393 | #endif |
1331 | |
1394 | |
1332 | signals [signum - 1].pending = 1; |
1395 | ev_feed_signal (signum); |
1333 | evpipe_write (EV_A_ &sig_pending); |
|
|
1334 | } |
1396 | } |
1335 | |
1397 | |
1336 | void noinline |
1398 | void noinline |
1337 | ev_feed_signal_event (EV_P_ int signum) |
1399 | ev_feed_signal_event (EV_P_ int signum) |
1338 | { |
1400 | { |
… | |
… | |
1438 | |
1500 | |
1439 | #endif |
1501 | #endif |
1440 | |
1502 | |
1441 | /*****************************************************************************/ |
1503 | /*****************************************************************************/ |
1442 | |
1504 | |
|
|
1505 | #if EV_USE_IOCP |
|
|
1506 | # include "ev_iocp.c" |
|
|
1507 | #endif |
1443 | #if EV_USE_PORT |
1508 | #if EV_USE_PORT |
1444 | # include "ev_port.c" |
1509 | # include "ev_port.c" |
1445 | #endif |
1510 | #endif |
1446 | #if EV_USE_KQUEUE |
1511 | #if EV_USE_KQUEUE |
1447 | # include "ev_kqueue.c" |
1512 | # include "ev_kqueue.c" |
… | |
… | |
1520 | ev_embeddable_backends (void) |
1585 | ev_embeddable_backends (void) |
1521 | { |
1586 | { |
1522 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1587 | int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; |
1523 | |
1588 | |
1524 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1589 | /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ |
1525 | /* please fix it and tell me how to detect the fix */ |
1590 | if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ |
1526 | flags &= ~EVBACKEND_EPOLL; |
1591 | flags &= ~EVBACKEND_EPOLL; |
1527 | |
1592 | |
1528 | return flags; |
1593 | return flags; |
1529 | } |
1594 | } |
1530 | |
1595 | |
1531 | unsigned int |
1596 | unsigned int |
… | |
… | |
1587 | static void noinline |
1652 | static void noinline |
1588 | loop_init (EV_P_ unsigned int flags) |
1653 | loop_init (EV_P_ unsigned int flags) |
1589 | { |
1654 | { |
1590 | if (!backend) |
1655 | if (!backend) |
1591 | { |
1656 | { |
|
|
1657 | origflags = flags; |
|
|
1658 | |
1592 | #if EV_USE_REALTIME |
1659 | #if EV_USE_REALTIME |
1593 | if (!have_realtime) |
1660 | if (!have_realtime) |
1594 | { |
1661 | { |
1595 | struct timespec ts; |
1662 | struct timespec ts; |
1596 | |
1663 | |
… | |
… | |
1641 | #endif |
1708 | #endif |
1642 | #if EV_USE_SIGNALFD |
1709 | #if EV_USE_SIGNALFD |
1643 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1710 | sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; |
1644 | #endif |
1711 | #endif |
1645 | |
1712 | |
1646 | if (!(flags & 0x0000ffffU)) |
1713 | if (!(flags & EVBACKEND_MASK)) |
1647 | flags |= ev_recommended_backends (); |
1714 | flags |= ev_recommended_backends (); |
1648 | |
1715 | |
|
|
1716 | #if EV_USE_IOCP |
|
|
1717 | if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); |
|
|
1718 | #endif |
1649 | #if EV_USE_PORT |
1719 | #if EV_USE_PORT |
1650 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1720 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
1651 | #endif |
1721 | #endif |
1652 | #if EV_USE_KQUEUE |
1722 | #if EV_USE_KQUEUE |
1653 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
1723 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
… | |
… | |
1670 | #endif |
1740 | #endif |
1671 | } |
1741 | } |
1672 | } |
1742 | } |
1673 | |
1743 | |
1674 | /* free up a loop structure */ |
1744 | /* free up a loop structure */ |
1675 | static void noinline |
1745 | void |
1676 | loop_destroy (EV_P) |
1746 | ev_loop_destroy (EV_P) |
1677 | { |
1747 | { |
1678 | int i; |
1748 | int i; |
|
|
1749 | |
|
|
1750 | #if EV_MULTIPLICITY |
|
|
1751 | /* mimic free (0) */ |
|
|
1752 | if (!EV_A) |
|
|
1753 | return; |
|
|
1754 | #endif |
|
|
1755 | |
|
|
1756 | #if EV_CLEANUP_ENABLE |
|
|
1757 | /* queue cleanup watchers (and execute them) */ |
|
|
1758 | if (expect_false (cleanupcnt)) |
|
|
1759 | { |
|
|
1760 | queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); |
|
|
1761 | EV_INVOKE_PENDING; |
|
|
1762 | } |
|
|
1763 | #endif |
|
|
1764 | |
|
|
1765 | #if EV_CHILD_ENABLE |
|
|
1766 | if (ev_is_active (&childev)) |
|
|
1767 | { |
|
|
1768 | ev_ref (EV_A); /* child watcher */ |
|
|
1769 | ev_signal_stop (EV_A_ &childev); |
|
|
1770 | } |
|
|
1771 | #endif |
1679 | |
1772 | |
1680 | if (ev_is_active (&pipe_w)) |
1773 | if (ev_is_active (&pipe_w)) |
1681 | { |
1774 | { |
1682 | /*ev_ref (EV_A);*/ |
1775 | /*ev_ref (EV_A);*/ |
1683 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
1776 | /*ev_io_stop (EV_A_ &pipe_w);*/ |
… | |
… | |
1705 | #endif |
1798 | #endif |
1706 | |
1799 | |
1707 | if (backend_fd >= 0) |
1800 | if (backend_fd >= 0) |
1708 | close (backend_fd); |
1801 | close (backend_fd); |
1709 | |
1802 | |
|
|
1803 | #if EV_USE_IOCP |
|
|
1804 | if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); |
|
|
1805 | #endif |
1710 | #if EV_USE_PORT |
1806 | #if EV_USE_PORT |
1711 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1807 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
1712 | #endif |
1808 | #endif |
1713 | #if EV_USE_KQUEUE |
1809 | #if EV_USE_KQUEUE |
1714 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
1810 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
… | |
… | |
1741 | array_free (periodic, EMPTY); |
1837 | array_free (periodic, EMPTY); |
1742 | #endif |
1838 | #endif |
1743 | #if EV_FORK_ENABLE |
1839 | #if EV_FORK_ENABLE |
1744 | array_free (fork, EMPTY); |
1840 | array_free (fork, EMPTY); |
1745 | #endif |
1841 | #endif |
|
|
1842 | #if EV_CLEANUP_ENABLE |
|
|
1843 | array_free (cleanup, EMPTY); |
|
|
1844 | #endif |
1746 | array_free (prepare, EMPTY); |
1845 | array_free (prepare, EMPTY); |
1747 | array_free (check, EMPTY); |
1846 | array_free (check, EMPTY); |
1748 | #if EV_ASYNC_ENABLE |
1847 | #if EV_ASYNC_ENABLE |
1749 | array_free (async, EMPTY); |
1848 | array_free (async, EMPTY); |
1750 | #endif |
1849 | #endif |
1751 | |
1850 | |
1752 | backend = 0; |
1851 | backend = 0; |
|
|
1852 | |
|
|
1853 | #if EV_MULTIPLICITY |
|
|
1854 | if (ev_is_default_loop (EV_A)) |
|
|
1855 | #endif |
|
|
1856 | ev_default_loop_ptr = 0; |
|
|
1857 | #if EV_MULTIPLICITY |
|
|
1858 | else |
|
|
1859 | ev_free (EV_A); |
|
|
1860 | #endif |
1753 | } |
1861 | } |
1754 | |
1862 | |
1755 | #if EV_USE_INOTIFY |
1863 | #if EV_USE_INOTIFY |
1756 | inline_size void infy_fork (EV_P); |
1864 | inline_size void infy_fork (EV_P); |
1757 | #endif |
1865 | #endif |
… | |
… | |
1816 | loop_init (EV_A_ flags); |
1924 | loop_init (EV_A_ flags); |
1817 | |
1925 | |
1818 | if (ev_backend (EV_A)) |
1926 | if (ev_backend (EV_A)) |
1819 | return EV_A; |
1927 | return EV_A; |
1820 | |
1928 | |
|
|
1929 | ev_free (EV_A); |
1821 | return 0; |
1930 | return 0; |
1822 | } |
1931 | } |
1823 | |
1932 | |
1824 | void |
|
|
1825 | ev_loop_destroy (EV_P) |
|
|
1826 | { |
|
|
1827 | loop_destroy (EV_A); |
|
|
1828 | ev_free (loop); |
|
|
1829 | } |
|
|
1830 | |
|
|
1831 | void |
|
|
1832 | ev_loop_fork (EV_P) |
|
|
1833 | { |
|
|
1834 | postfork = 1; /* must be in line with ev_default_fork */ |
|
|
1835 | } |
|
|
1836 | #endif /* multiplicity */ |
1933 | #endif /* multiplicity */ |
1837 | |
1934 | |
1838 | #if EV_VERIFY |
1935 | #if EV_VERIFY |
1839 | static void noinline |
1936 | static void noinline |
1840 | verify_watcher (EV_P_ W w) |
1937 | verify_watcher (EV_P_ W w) |
… | |
… | |
1915 | #if EV_FORK_ENABLE |
2012 | #if EV_FORK_ENABLE |
1916 | assert (forkmax >= forkcnt); |
2013 | assert (forkmax >= forkcnt); |
1917 | array_verify (EV_A_ (W *)forks, forkcnt); |
2014 | array_verify (EV_A_ (W *)forks, forkcnt); |
1918 | #endif |
2015 | #endif |
1919 | |
2016 | |
|
|
2017 | #if EV_CLEANUP_ENABLE |
|
|
2018 | assert (cleanupmax >= cleanupcnt); |
|
|
2019 | array_verify (EV_A_ (W *)cleanups, cleanupcnt); |
|
|
2020 | #endif |
|
|
2021 | |
1920 | #if EV_ASYNC_ENABLE |
2022 | #if EV_ASYNC_ENABLE |
1921 | assert (asyncmax >= asynccnt); |
2023 | assert (asyncmax >= asynccnt); |
1922 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
2024 | array_verify (EV_A_ (W *)asyncs, asynccnt); |
1923 | #endif |
2025 | #endif |
1924 | |
2026 | |
… | |
… | |
1942 | } |
2044 | } |
1943 | #endif |
2045 | #endif |
1944 | |
2046 | |
1945 | #if EV_MULTIPLICITY |
2047 | #if EV_MULTIPLICITY |
1946 | struct ev_loop * |
2048 | struct ev_loop * |
1947 | ev_default_loop_init (unsigned int flags) |
|
|
1948 | #else |
2049 | #else |
1949 | int |
2050 | int |
|
|
2051 | #endif |
1950 | ev_default_loop (unsigned int flags) |
2052 | ev_default_loop (unsigned int flags) |
1951 | #endif |
|
|
1952 | { |
2053 | { |
1953 | if (!ev_default_loop_ptr) |
2054 | if (!ev_default_loop_ptr) |
1954 | { |
2055 | { |
1955 | #if EV_MULTIPLICITY |
2056 | #if EV_MULTIPLICITY |
1956 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
2057 | EV_P = ev_default_loop_ptr = &default_loop_struct; |
… | |
… | |
1975 | |
2076 | |
1976 | return ev_default_loop_ptr; |
2077 | return ev_default_loop_ptr; |
1977 | } |
2078 | } |
1978 | |
2079 | |
1979 | void |
2080 | void |
1980 | ev_default_destroy (void) |
2081 | ev_loop_fork (EV_P) |
1981 | { |
2082 | { |
1982 | #if EV_MULTIPLICITY |
|
|
1983 | EV_P = ev_default_loop_ptr; |
|
|
1984 | #endif |
|
|
1985 | |
|
|
1986 | ev_default_loop_ptr = 0; |
|
|
1987 | |
|
|
1988 | #if EV_CHILD_ENABLE |
|
|
1989 | ev_ref (EV_A); /* child watcher */ |
|
|
1990 | ev_signal_stop (EV_A_ &childev); |
|
|
1991 | #endif |
|
|
1992 | |
|
|
1993 | loop_destroy (EV_A); |
|
|
1994 | } |
|
|
1995 | |
|
|
1996 | void |
|
|
1997 | ev_default_fork (void) |
|
|
1998 | { |
|
|
1999 | #if EV_MULTIPLICITY |
|
|
2000 | EV_P = ev_default_loop_ptr; |
|
|
2001 | #endif |
|
|
2002 | |
|
|
2003 | postfork = 1; /* must be in line with ev_loop_fork */ |
2083 | postfork = 1; /* must be in line with ev_default_fork */ |
2004 | } |
2084 | } |
2005 | |
2085 | |
2006 | /*****************************************************************************/ |
2086 | /*****************************************************************************/ |
2007 | |
2087 | |
2008 | void |
2088 | void |
… | |
… | |
2162 | feed_reverse_done (EV_A_ EV_PERIODIC); |
2242 | feed_reverse_done (EV_A_ EV_PERIODIC); |
2163 | } |
2243 | } |
2164 | } |
2244 | } |
2165 | |
2245 | |
2166 | /* simply recalculate all periodics */ |
2246 | /* simply recalculate all periodics */ |
2167 | /* TODO: maybe ensure that at leats one event happens when jumping forward? */ |
2247 | /* TODO: maybe ensure that at least one event happens when jumping forward? */ |
2168 | static void noinline |
2248 | static void noinline |
2169 | periodics_reschedule (EV_P) |
2249 | periodics_reschedule (EV_P) |
2170 | { |
2250 | { |
2171 | int i; |
2251 | int i; |
2172 | |
2252 | |
… | |
… | |
2268 | mn_now = ev_rt_now; |
2348 | mn_now = ev_rt_now; |
2269 | } |
2349 | } |
2270 | } |
2350 | } |
2271 | |
2351 | |
2272 | void |
2352 | void |
2273 | ev_loop (EV_P_ int flags) |
2353 | ev_run (EV_P_ int flags) |
2274 | { |
2354 | { |
2275 | #if EV_FEATURE_API |
2355 | #if EV_FEATURE_API |
2276 | ++loop_depth; |
2356 | ++loop_depth; |
2277 | #endif |
2357 | #endif |
2278 | |
2358 | |
2279 | assert (("libev: ev_loop recursion during release detected", loop_done != EVUNLOOP_RECURSE)); |
2359 | assert (("libev: ev_loop recursion during release detected", loop_done != EVBREAK_RECURSE)); |
2280 | |
2360 | |
2281 | loop_done = EVUNLOOP_CANCEL; |
2361 | loop_done = EVBREAK_CANCEL; |
2282 | |
2362 | |
2283 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2363 | EV_INVOKE_PENDING; /* in case we recurse, ensure ordering stays nice and clean */ |
2284 | |
2364 | |
2285 | do |
2365 | do |
2286 | { |
2366 | { |
… | |
… | |
2329 | /* calculate blocking time */ |
2409 | /* calculate blocking time */ |
2330 | { |
2410 | { |
2331 | ev_tstamp waittime = 0.; |
2411 | ev_tstamp waittime = 0.; |
2332 | ev_tstamp sleeptime = 0.; |
2412 | ev_tstamp sleeptime = 0.; |
2333 | |
2413 | |
|
|
2414 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2415 | ev_tstamp prev_mn_now = mn_now; |
|
|
2416 | |
|
|
2417 | /* update time to cancel out callback processing overhead */ |
|
|
2418 | time_update (EV_A_ 1e100); |
|
|
2419 | |
2334 | if (expect_true (!(flags & EVLOOP_NONBLOCK || idleall || !activecnt))) |
2420 | if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt))) |
2335 | { |
2421 | { |
2336 | /* remember old timestamp for io_blocktime calculation */ |
|
|
2337 | ev_tstamp prev_mn_now = mn_now; |
|
|
2338 | |
|
|
2339 | /* update time to cancel out callback processing overhead */ |
|
|
2340 | time_update (EV_A_ 1e100); |
|
|
2341 | |
|
|
2342 | waittime = MAX_BLOCKTIME; |
2422 | waittime = MAX_BLOCKTIME; |
2343 | |
2423 | |
2344 | if (timercnt) |
2424 | if (timercnt) |
2345 | { |
2425 | { |
2346 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
2426 | ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now + backend_fudge; |
… | |
… | |
2376 | } |
2456 | } |
2377 | |
2457 | |
2378 | #if EV_FEATURE_API |
2458 | #if EV_FEATURE_API |
2379 | ++loop_count; |
2459 | ++loop_count; |
2380 | #endif |
2460 | #endif |
2381 | assert ((loop_done = EVUNLOOP_RECURSE, 1)); /* assert for side effect */ |
2461 | assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ |
2382 | backend_poll (EV_A_ waittime); |
2462 | backend_poll (EV_A_ waittime); |
2383 | assert ((loop_done = EVUNLOOP_CANCEL, 1)); /* assert for side effect */ |
2463 | assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ |
2384 | |
2464 | |
2385 | /* update ev_rt_now, do magic */ |
2465 | /* update ev_rt_now, do magic */ |
2386 | time_update (EV_A_ waittime + sleeptime); |
2466 | time_update (EV_A_ waittime + sleeptime); |
2387 | } |
2467 | } |
2388 | |
2468 | |
… | |
… | |
2406 | EV_INVOKE_PENDING; |
2486 | EV_INVOKE_PENDING; |
2407 | } |
2487 | } |
2408 | while (expect_true ( |
2488 | while (expect_true ( |
2409 | activecnt |
2489 | activecnt |
2410 | && !loop_done |
2490 | && !loop_done |
2411 | && !(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) |
2491 | && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) |
2412 | )); |
2492 | )); |
2413 | |
2493 | |
2414 | if (loop_done == EVUNLOOP_ONE) |
2494 | if (loop_done == EVBREAK_ONE) |
2415 | loop_done = EVUNLOOP_CANCEL; |
2495 | loop_done = EVBREAK_CANCEL; |
2416 | |
2496 | |
2417 | #if EV_FEATURE_API |
2497 | #if EV_FEATURE_API |
2418 | --loop_depth; |
2498 | --loop_depth; |
2419 | #endif |
2499 | #endif |
2420 | } |
2500 | } |
2421 | |
2501 | |
2422 | void |
2502 | void |
2423 | ev_unloop (EV_P_ int how) |
2503 | ev_break (EV_P_ int how) |
2424 | { |
2504 | { |
2425 | loop_done = how; |
2505 | loop_done = how; |
2426 | } |
2506 | } |
2427 | |
2507 | |
2428 | void |
2508 | void |
… | |
… | |
2576 | EV_FREQUENT_CHECK; |
2656 | EV_FREQUENT_CHECK; |
2577 | |
2657 | |
2578 | wlist_del (&anfds[w->fd].head, (WL)w); |
2658 | wlist_del (&anfds[w->fd].head, (WL)w); |
2579 | ev_stop (EV_A_ (W)w); |
2659 | ev_stop (EV_A_ (W)w); |
2580 | |
2660 | |
2581 | fd_change (EV_A_ w->fd, 1); |
2661 | fd_change (EV_A_ w->fd, EV_ANFD_REIFY); |
2582 | |
2662 | |
2583 | EV_FREQUENT_CHECK; |
2663 | EV_FREQUENT_CHECK; |
2584 | } |
2664 | } |
2585 | |
2665 | |
2586 | void noinline |
2666 | void noinline |
… | |
… | |
2810 | sa.sa_handler = ev_sighandler; |
2890 | sa.sa_handler = ev_sighandler; |
2811 | sigfillset (&sa.sa_mask); |
2891 | sigfillset (&sa.sa_mask); |
2812 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2892 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
2813 | sigaction (w->signum, &sa, 0); |
2893 | sigaction (w->signum, &sa, 0); |
2814 | |
2894 | |
|
|
2895 | if (origflags & EVFLAG_NOSIGMASK) |
|
|
2896 | { |
2815 | sigemptyset (&sa.sa_mask); |
2897 | sigemptyset (&sa.sa_mask); |
2816 | sigaddset (&sa.sa_mask, w->signum); |
2898 | sigaddset (&sa.sa_mask, w->signum); |
2817 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
2899 | sigprocmask (SIG_UNBLOCK, &sa.sa_mask, 0); |
|
|
2900 | } |
2818 | #endif |
2901 | #endif |
2819 | } |
2902 | } |
2820 | |
2903 | |
2821 | EV_FREQUENT_CHECK; |
2904 | EV_FREQUENT_CHECK; |
2822 | } |
2905 | } |
… | |
… | |
3038 | { |
3121 | { |
3039 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
3122 | struct inotify_event *ev = (struct inotify_event *)(buf + ofs); |
3040 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3123 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
3041 | ofs += sizeof (struct inotify_event) + ev->len; |
3124 | ofs += sizeof (struct inotify_event) + ev->len; |
3042 | } |
3125 | } |
3043 | } |
|
|
3044 | |
|
|
3045 | inline_size unsigned int |
|
|
3046 | ev_linux_version (void) |
|
|
3047 | { |
|
|
3048 | struct utsname buf; |
|
|
3049 | unsigned int v; |
|
|
3050 | int i; |
|
|
3051 | char *p = buf.release; |
|
|
3052 | |
|
|
3053 | if (uname (&buf)) |
|
|
3054 | return 0; |
|
|
3055 | |
|
|
3056 | for (i = 3+1; --i; ) |
|
|
3057 | { |
|
|
3058 | unsigned int c = 0; |
|
|
3059 | |
|
|
3060 | for (;;) |
|
|
3061 | { |
|
|
3062 | if (*p >= '0' && *p <= '9') |
|
|
3063 | c = c * 10 + *p++ - '0'; |
|
|
3064 | else |
|
|
3065 | { |
|
|
3066 | p += *p == '.'; |
|
|
3067 | break; |
|
|
3068 | } |
|
|
3069 | } |
|
|
3070 | |
|
|
3071 | v = (v << 8) | c; |
|
|
3072 | } |
|
|
3073 | |
|
|
3074 | return v; |
|
|
3075 | } |
3126 | } |
3076 | |
3127 | |
3077 | inline_size void |
3128 | inline_size void |
3078 | ev_check_2625 (EV_P) |
3129 | ev_check_2625 (EV_P) |
3079 | { |
3130 | { |
… | |
… | |
3403 | |
3454 | |
3404 | #if EV_EMBED_ENABLE |
3455 | #if EV_EMBED_ENABLE |
3405 | void noinline |
3456 | void noinline |
3406 | ev_embed_sweep (EV_P_ ev_embed *w) |
3457 | ev_embed_sweep (EV_P_ ev_embed *w) |
3407 | { |
3458 | { |
3408 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3459 | ev_run (w->other, EVRUN_NOWAIT); |
3409 | } |
3460 | } |
3410 | |
3461 | |
3411 | static void |
3462 | static void |
3412 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3463 | embed_io_cb (EV_P_ ev_io *io, int revents) |
3413 | { |
3464 | { |
3414 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3465 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
3415 | |
3466 | |
3416 | if (ev_cb (w)) |
3467 | if (ev_cb (w)) |
3417 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3468 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
3418 | else |
3469 | else |
3419 | ev_loop (w->other, EVLOOP_NONBLOCK); |
3470 | ev_run (w->other, EVRUN_NOWAIT); |
3420 | } |
3471 | } |
3421 | |
3472 | |
3422 | static void |
3473 | static void |
3423 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3474 | embed_prepare_cb (EV_P_ ev_prepare *prepare, int revents) |
3424 | { |
3475 | { |
… | |
… | |
3428 | EV_P = w->other; |
3479 | EV_P = w->other; |
3429 | |
3480 | |
3430 | while (fdchangecnt) |
3481 | while (fdchangecnt) |
3431 | { |
3482 | { |
3432 | fd_reify (EV_A); |
3483 | fd_reify (EV_A); |
3433 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3484 | ev_run (EV_A_ EVRUN_NOWAIT); |
3434 | } |
3485 | } |
3435 | } |
3486 | } |
3436 | } |
3487 | } |
3437 | |
3488 | |
3438 | static void |
3489 | static void |
… | |
… | |
3444 | |
3495 | |
3445 | { |
3496 | { |
3446 | EV_P = w->other; |
3497 | EV_P = w->other; |
3447 | |
3498 | |
3448 | ev_loop_fork (EV_A); |
3499 | ev_loop_fork (EV_A); |
3449 | ev_loop (EV_A_ EVLOOP_NONBLOCK); |
3500 | ev_run (EV_A_ EVRUN_NOWAIT); |
3450 | } |
3501 | } |
3451 | |
3502 | |
3452 | ev_embed_start (EV_A_ w); |
3503 | ev_embed_start (EV_A_ w); |
3453 | } |
3504 | } |
3454 | |
3505 | |
… | |
… | |
3546 | |
3597 | |
3547 | EV_FREQUENT_CHECK; |
3598 | EV_FREQUENT_CHECK; |
3548 | } |
3599 | } |
3549 | #endif |
3600 | #endif |
3550 | |
3601 | |
3551 | #if EV_ASYNC_ENABLE |
3602 | #if EV_CLEANUP_ENABLE |
3552 | void |
3603 | void |
3553 | ev_async_start (EV_P_ ev_async *w) |
3604 | ev_cleanup_start (EV_P_ ev_cleanup *w) |
3554 | { |
3605 | { |
3555 | if (expect_false (ev_is_active (w))) |
3606 | if (expect_false (ev_is_active (w))) |
3556 | return; |
3607 | return; |
|
|
3608 | |
|
|
3609 | EV_FREQUENT_CHECK; |
|
|
3610 | |
|
|
3611 | ev_start (EV_A_ (W)w, ++cleanupcnt); |
|
|
3612 | array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); |
|
|
3613 | cleanups [cleanupcnt - 1] = w; |
|
|
3614 | |
|
|
3615 | /* cleanup watchers should never keep a refcount on the loop */ |
|
|
3616 | ev_unref (EV_A); |
|
|
3617 | EV_FREQUENT_CHECK; |
|
|
3618 | } |
|
|
3619 | |
|
|
3620 | void |
|
|
3621 | ev_cleanup_stop (EV_P_ ev_cleanup *w) |
|
|
3622 | { |
|
|
3623 | clear_pending (EV_A_ (W)w); |
|
|
3624 | if (expect_false (!ev_is_active (w))) |
|
|
3625 | return; |
|
|
3626 | |
|
|
3627 | EV_FREQUENT_CHECK; |
|
|
3628 | ev_ref (EV_A); |
|
|
3629 | |
|
|
3630 | { |
|
|
3631 | int active = ev_active (w); |
|
|
3632 | |
|
|
3633 | cleanups [active - 1] = cleanups [--cleanupcnt]; |
|
|
3634 | ev_active (cleanups [active - 1]) = active; |
|
|
3635 | } |
|
|
3636 | |
|
|
3637 | ev_stop (EV_A_ (W)w); |
|
|
3638 | |
|
|
3639 | EV_FREQUENT_CHECK; |
|
|
3640 | } |
|
|
3641 | #endif |
|
|
3642 | |
|
|
3643 | #if EV_ASYNC_ENABLE |
|
|
3644 | void |
|
|
3645 | ev_async_start (EV_P_ ev_async *w) |
|
|
3646 | { |
|
|
3647 | if (expect_false (ev_is_active (w))) |
|
|
3648 | return; |
|
|
3649 | |
|
|
3650 | w->sent = 0; |
3557 | |
3651 | |
3558 | evpipe_init (EV_A); |
3652 | evpipe_init (EV_A); |
3559 | |
3653 | |
3560 | EV_FREQUENT_CHECK; |
3654 | EV_FREQUENT_CHECK; |
3561 | |
3655 | |
… | |
… | |
3781 | |
3875 | |
3782 | #if EV_MULTIPLICITY |
3876 | #if EV_MULTIPLICITY |
3783 | #include "ev_wrap.h" |
3877 | #include "ev_wrap.h" |
3784 | #endif |
3878 | #endif |
3785 | |
3879 | |
3786 | #ifdef __cplusplus |
3880 | EV_CPP(}) |
3787 | } |
|
|
3788 | #endif |
|
|
3789 | |
3881 | |