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54 | |
54 | |
55 | #ifndef EV_STAT_ENABLE |
55 | #ifndef EV_STAT_ENABLE |
56 | # define EV_STAT_ENABLE 1 |
56 | # define EV_STAT_ENABLE 1 |
57 | #endif |
57 | #endif |
58 | |
58 | |
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59 | #ifndef EV_FORK_ENABLE |
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60 | # define EV_FORK_ENABLE 1 |
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61 | #endif |
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62 | |
59 | #ifndef EV_EMBED_ENABLE |
63 | #ifndef EV_EMBED_ENABLE |
60 | # define EV_EMBED_ENABLE 1 |
64 | # define EV_EMBED_ENABLE 1 |
61 | #endif |
65 | #endif |
62 | |
66 | |
63 | /*****************************************************************************/ |
67 | /*****************************************************************************/ |
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68 | |
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69 | #include <stddef.h> /* for size_t */ |
64 | |
70 | |
65 | #if EV_STAT_ENABLE |
71 | #if EV_STAT_ENABLE |
66 | # include <sys/stat.h> |
72 | # include <sys/stat.h> |
67 | #endif |
73 | #endif |
68 | |
74 | |
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71 | struct ev_loop; |
77 | struct ev_loop; |
72 | # define EV_P struct ev_loop *loop |
78 | # define EV_P struct ev_loop *loop |
73 | # define EV_P_ EV_P, |
79 | # define EV_P_ EV_P, |
74 | # define EV_A loop |
80 | # define EV_A loop |
75 | # define EV_A_ EV_A, |
81 | # define EV_A_ EV_A, |
76 | # define EV_DEFAULT_A ev_default_loop (0) |
82 | # define EV_DEFAULT ev_default_loop (0) |
77 | # define EV_DEFAULT_A_ EV_DEFAULT_A, |
83 | # define EV_DEFAULT_ EV_DEFAULT, |
78 | #else |
84 | #else |
79 | # define EV_P void |
85 | # define EV_P void |
80 | # define EV_P_ |
86 | # define EV_P_ |
81 | # define EV_A |
87 | # define EV_A |
82 | # define EV_A_ |
88 | # define EV_A_ |
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89 | # define EV_DEFAULT |
83 | # define EV_DEFAULT_A |
90 | # define EV_DEFAULT_ |
84 | # define EV_DEFAULT_A_ |
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85 | |
91 | |
86 | # undef EV_EMBED_ENABLE |
92 | # undef EV_EMBED_ENABLE |
87 | #endif |
93 | #endif |
88 | |
94 | |
89 | /* eventmask, revents, events... */ |
95 | /* eventmask, revents, events... */ |
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92 | #define EV_READ 0x01L /* ev_io detected read will not block */ |
98 | #define EV_READ 0x01L /* ev_io detected read will not block */ |
93 | #define EV_WRITE 0x02L /* ev_io detected write will not block */ |
99 | #define EV_WRITE 0x02L /* ev_io detected write will not block */ |
94 | #define EV_TIMEOUT 0x00000100L /* timer timed out */ |
100 | #define EV_TIMEOUT 0x00000100L /* timer timed out */ |
95 | #define EV_PERIODIC 0x00000200L /* periodic timer timed out */ |
101 | #define EV_PERIODIC 0x00000200L /* periodic timer timed out */ |
96 | #define EV_SIGNAL 0x00000400L /* signal was received */ |
102 | #define EV_SIGNAL 0x00000400L /* signal was received */ |
97 | #define EV_IDLE 0x00000800L /* event loop is idling */ |
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98 | #define EV_PREPARE 0x00001000L /* event loop about to poll */ |
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99 | #define EV_CHECK 0x00002000L /* event loop finished poll */ |
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100 | #define EV_CHILD 0x00004000L /* child/pid had status change */ |
103 | #define EV_CHILD 0x00000800L /* child/pid had status change */ |
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104 | #define EV_STAT 0x00001000L /* stat data changed */ |
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105 | #define EV_IDLE 0x00002000L /* event loop is idling */ |
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106 | #define EV_PREPARE 0x00004000L /* event loop about to poll */ |
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107 | #define EV_CHECK 0x00008000L /* event loop finished poll */ |
101 | #define EV_EMBED 0x00008000L /* embedded event loop needs sweep */ |
108 | #define EV_EMBED 0x00010000L /* embedded event loop needs sweep */ |
102 | #define EV_STAT 0x00010000L /* stat data changed */ |
109 | #define EV_FORK 0x00020000L /* event loop resumed in child */ |
103 | #define EV_ERROR 0x80000000L /* sent when an error occurs */ |
110 | #define EV_ERROR 0x80000000L /* sent when an error occurs */ |
104 | |
111 | |
105 | /* can be used to add custom fields to all watchers, while losing binary compatibility */ |
112 | /* can be used to add custom fields to all watchers, while losing binary compatibility */ |
106 | #ifndef EV_COMMON |
113 | #ifndef EV_COMMON |
107 | # define EV_COMMON void *data; |
114 | # define EV_COMMON void *data; |
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211 | int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */ |
218 | int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */ |
212 | } ev_child; |
219 | } ev_child; |
213 | |
220 | |
214 | #if EV_STAT_ENABLE |
221 | #if EV_STAT_ENABLE |
215 | /* st_nlink = 0 means missing file or other error */ |
222 | /* st_nlink = 0 means missing file or other error */ |
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223 | #ifdef _WIN32 |
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224 | typedef struct _stati64 ev_statdata; |
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225 | #else |
216 | typedef struct stat ev_statdata; |
226 | typedef struct stat ev_statdata; |
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227 | #endif |
217 | |
228 | |
218 | /* invoked each time the stat data changes for a given path */ |
229 | /* invoked each time the stat data changes for a given path */ |
219 | /* revent EV_STAT */ |
230 | /* revent EV_STAT */ |
220 | typedef struct ev_stat |
231 | typedef struct ev_stat |
221 | { |
232 | { |
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249 | typedef struct ev_check |
260 | typedef struct ev_check |
250 | { |
261 | { |
251 | EV_WATCHER (ev_check) |
262 | EV_WATCHER (ev_check) |
252 | } ev_check; |
263 | } ev_check; |
253 | |
264 | |
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265 | #if EV_FORK_ENABLE |
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266 | /* the callback gets invoked before check in the child process when a fork was detected */ |
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267 | typedef struct ev_fork |
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268 | { |
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269 | EV_WATCHER (ev_fork) |
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270 | } ev_fork; |
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271 | #endif |
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272 | |
254 | #if EV_EMBED_ENABLE |
273 | #if EV_EMBED_ENABLE |
255 | /* used to embed an event loop inside another */ |
274 | /* used to embed an event loop inside another */ |
256 | /* the callback gets invoked when the event loop has handled events, and can be 0 */ |
275 | /* the callback gets invoked when the event loop has handled events, and can be 0 */ |
257 | typedef struct ev_embed |
276 | typedef struct ev_embed |
258 | { |
277 | { |
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270 | struct ev_watcher_list wl; |
289 | struct ev_watcher_list wl; |
271 | |
290 | |
272 | struct ev_io io; |
291 | struct ev_io io; |
273 | struct ev_timer timer; |
292 | struct ev_timer timer; |
274 | struct ev_periodic periodic; |
293 | struct ev_periodic periodic; |
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294 | struct ev_signal signal; |
275 | struct ev_child child; |
295 | struct ev_child child; |
276 | #if EV_STAT_ENABLE |
296 | #if EV_STAT_ENABLE |
277 | struct ev_stat stat; |
297 | struct ev_stat stat; |
278 | #endif |
298 | #endif |
279 | struct ev_idle idle; |
299 | struct ev_idle idle; |
280 | struct ev_prepare prepare; |
300 | struct ev_prepare prepare; |
281 | struct ev_check check; |
301 | struct ev_check check; |
282 | struct ev_signal signal; |
302 | #if EV_FORK_ENABLE |
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303 | struct ev_fork fork; |
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304 | #endif |
283 | #if EV_EMBED_ENABLE |
305 | #if EV_EMBED_ENABLE |
284 | struct ev_embed embed; |
306 | struct ev_embed embed; |
285 | #endif |
307 | #endif |
286 | }; |
308 | }; |
287 | |
309 | |
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312 | * It is used to allocate and free memory. |
334 | * It is used to allocate and free memory. |
313 | * If it returns zero when memory needs to be allocated, the library might abort |
335 | * If it returns zero when memory needs to be allocated, the library might abort |
314 | * or take some potentially destructive action. |
336 | * or take some potentially destructive action. |
315 | * The default is your system realloc function. |
337 | * The default is your system realloc function. |
316 | */ |
338 | */ |
317 | void ev_set_allocator (void *(*cb)(void *ptr, long size)); |
339 | void ev_set_allocator (void *(*cb)(void *ptr, size_t size)); |
318 | |
340 | |
319 | /* set the callback function to call on a |
341 | /* set the callback function to call on a |
320 | * retryable syscall error |
342 | * retryable syscall error |
321 | * (such as failed select, poll, epoll_wait) |
343 | * (such as failed select, poll, epoll_wait) |
322 | */ |
344 | */ |
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407 | #define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); } while (0) |
429 | #define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); } while (0) |
408 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
430 | #define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ |
409 | #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ |
431 | #define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ |
410 | #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ |
432 | #define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ |
411 | #define ev_embed_set(ev,loop_) do { (ev)->loop = (loop_); } while (0) |
433 | #define ev_embed_set(ev,loop_) do { (ev)->loop = (loop_); } while (0) |
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434 | #define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */ |
412 | |
435 | |
413 | #define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) |
436 | #define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) |
414 | #define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) |
437 | #define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) |
415 | #define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0) |
438 | #define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0) |
416 | #define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) |
439 | #define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) |
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418 | #define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_path_set ((ev),(path),(interval)); } while (0) |
441 | #define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_path_set ((ev),(path),(interval)); } while (0) |
419 | #define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) |
442 | #define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) |
420 | #define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) |
443 | #define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) |
421 | #define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0) |
444 | #define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0) |
422 | #define ev_embed_init(ev,cb,loop) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(loop)); } while (0) |
445 | #define ev_embed_init(ev,cb,loop) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(loop)); } while (0) |
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446 | #define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0) |
423 | |
447 | |
424 | #define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
448 | #define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ |
425 | #define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
449 | #define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ |
426 | |
450 | |
427 | #define ev_priority(ev) ((ev_watcher *)(void *)(ev))->priority /* rw */ |
451 | #define ev_priority(ev) ((ev_watcher *)(void *)(ev))->priority /* rw */ |
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476 | void ev_prepare_start (EV_P_ ev_prepare *w); |
500 | void ev_prepare_start (EV_P_ ev_prepare *w); |
477 | void ev_prepare_stop (EV_P_ ev_prepare *w); |
501 | void ev_prepare_stop (EV_P_ ev_prepare *w); |
478 | |
502 | |
479 | void ev_check_start (EV_P_ ev_check *w); |
503 | void ev_check_start (EV_P_ ev_check *w); |
480 | void ev_check_stop (EV_P_ ev_check *w); |
504 | void ev_check_stop (EV_P_ ev_check *w); |
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505 | |
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506 | # if EV_FORK_ENABLE |
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507 | void ev_fork_start (EV_P_ ev_fork *w); |
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508 | void ev_fork_stop (EV_P_ ev_fork *w); |
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509 | # endif |
481 | |
510 | |
482 | # if EV_EMBED_ENABLE |
511 | # if EV_EMBED_ENABLE |
483 | /* only supported when loop to be embedded is in fact embeddable */ |
512 | /* only supported when loop to be embedded is in fact embeddable */ |
484 | void ev_embed_start (EV_P_ ev_embed *w); |
513 | void ev_embed_start (EV_P_ ev_embed *w); |
485 | void ev_embed_stop (EV_P_ ev_embed *w); |
514 | void ev_embed_stop (EV_P_ ev_embed *w); |