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Comparing libev/ev.h (file contents):
Revision 1.112 by root, Sat Mar 28 22:17:17 2009 UTC vs.
Revision 1.119 by root, Fri Jul 10 00:36:21 2009 UTC

80 80
81#ifndef EV_ASYNC_ENABLE 81#ifndef EV_ASYNC_ENABLE
82# define EV_ASYNC_ENABLE 1 82# define EV_ASYNC_ENABLE 1
83#endif 83#endif
84 84
85#ifndef EV_WALK_ENABLE
86# define EV_WALK_ENABLE 0 /* not yet */
87#endif
88
85#ifndef EV_ATOMIC_T 89#ifndef EV_ATOMIC_T
86# include <signal.h> 90# include <signal.h>
87# define EV_ATOMIC_T sig_atomic_t volatile 91# define EV_ATOMIC_T sig_atomic_t volatile
88#endif 92#endif
89 93
145#define EV_PREPARE 0x00004000 /* event loop about to poll */ 149#define EV_PREPARE 0x00004000 /* event loop about to poll */
146#define EV_CHECK 0x00008000 /* event loop finished poll */ 150#define EV_CHECK 0x00008000 /* event loop finished poll */
147#define EV_EMBED 0x00010000 /* embedded event loop needs sweep */ 151#define EV_EMBED 0x00010000 /* embedded event loop needs sweep */
148#define EV_FORK 0x00020000 /* event loop resumed in child */ 152#define EV_FORK 0x00020000 /* event loop resumed in child */
149#define EV_ASYNC 0x00040000 /* async intra-loop signal */ 153#define EV_ASYNC 0x00040000 /* async intra-loop signal */
154#define EV_CUSTOM 0x01000000 /* for use by user code */
150#define EV_ERROR 0x80000000 /* sent when an error occurs */ 155#define EV_ERROR 0x80000000 /* sent when an error occurs */
151 156
152/* can be used to add custom fields to all watchers, while losing binary compatibility */ 157/* can be used to add custom fields to all watchers, while losing binary compatibility */
153#ifndef EV_COMMON 158#ifndef EV_COMMON
154# define EV_COMMON void *data; 159# define EV_COMMON void *data;
182 * or simply 1 for watchers that aren't in some array. 187 * or simply 1 for watchers that aren't in some array.
183 * pending is either 0, in which case the watcher isn't, 188 * pending is either 0, in which case the watcher isn't,
184 * or the array index + 1 in the pendings array. 189 * or the array index + 1 in the pendings array.
185 */ 190 */
186 191
192#if EV_MINPRI == EV_MAXPRI
193# define EV_DECL_PRIORITY
194#else
195# define EV_DECL_PRIORITY int priority;
196#endif
197
187/* shared by all watchers */ 198/* shared by all watchers */
188#define EV_WATCHER(type) \ 199#define EV_WATCHER(type) \
189 int active; /* private */ \ 200 int active; /* private */ \
190 int pending; /* private */ \ 201 int pending; /* private */ \
191 int priority; /* private */ \ 202 EV_DECL_PRIORITY /* private */ \
192 EV_COMMON /* rw */ \ 203 EV_COMMON /* rw */ \
193 EV_CB_DECLARE (type) /* private */ 204 EV_CB_DECLARE (type) /* private */
194 205
195#define EV_WATCHER_LIST(type) \ 206#define EV_WATCHER_LIST(type) \
196 EV_WATCHER (type) \ 207 EV_WATCHER (type) \
454 465
455/* create and destroy alternative loops that don't handle signals */ 466/* create and destroy alternative loops that don't handle signals */
456struct ev_loop *ev_loop_new (unsigned int flags); 467struct ev_loop *ev_loop_new (unsigned int flags);
457void ev_loop_destroy (EV_P); 468void ev_loop_destroy (EV_P);
458void ev_loop_fork (EV_P); 469void ev_loop_fork (EV_P);
459void ev_loop_verify (EV_P);
460 470
461ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ 471ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */
462void ev_now_update (EV_P);
463 472
464#else 473#else
465 474
466int ev_default_loop (unsigned int flags); /* returns true when successful */ 475int ev_default_loop (unsigned int flags); /* returns true when successful */
467 476
491/* if you create alternative loops you have to call ev_loop_fork on them */ 500/* if you create alternative loops you have to call ev_loop_fork on them */
492/* you can call it in either the parent or the child */ 501/* you can call it in either the parent or the child */
493/* you can actually call it at any time, anywhere :) */ 502/* you can actually call it at any time, anywhere :) */
494void ev_default_fork (void); 503void ev_default_fork (void);
495 504
496#if 0 505unsigned int ev_backend (EV_P); /* backend in use by loop */
506
507void ev_now_update (EV_P); /* update event loop time */
508
509#if EV_WALK_ENABLE
497/* walk (almost) all watchers in the loop of a given type, invoking the */ 510/* walk (almost) all watchers in the loop of a given type, invoking the */
498/* callback on every such watcher. The callback might stop the watcher, */ 511/* callback on every such watcher. The callback might stop the watcher, */
499/* but do nothing else with the loop */ 512/* but do nothing else with the loop */
500void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)); 513void ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w));
501#endif 514#endif
502 515
503unsigned int ev_backend (EV_P); /* backend in use by loop */
504unsigned int ev_loop_count (EV_P); /* number of loop iterations */
505#endif /* prototypes */ 516#endif /* prototypes */
506 517
507#define EVLOOP_NONBLOCK 1 /* do not block/wait */ 518#define EVLOOP_NONBLOCK 1 /* do not block/wait */
508#define EVLOOP_ONESHOT 2 /* block *once* only */ 519#define EVLOOP_ONESHOT 2 /* block *once* only */
509#define EVUNLOOP_CANCEL 0 /* undo unloop */ 520#define EVUNLOOP_CANCEL 0 /* undo unloop */
512 523
513#if EV_PROTOTYPES 524#if EV_PROTOTYPES
514void ev_loop (EV_P_ int flags); 525void ev_loop (EV_P_ int flags);
515void ev_unloop (EV_P_ int how); /* set to 1 to break out of event loop, set to 2 to break out of all event loops */ 526void ev_unloop (EV_P_ int how); /* set to 1 to break out of event loop, set to 2 to break out of all event loops */
516 527
528/*
529 * ref/unref can be used to add or remove a refcount on the mainloop. every watcher
530 * keeps one reference. if you have a long-running watcher you never unregister that
531 * should not keep ev_loop from running, unref() after starting, and ref() before stopping.
532 */
533void ev_ref (EV_P);
534void ev_unref (EV_P);
535
536/*
537 * convenience function, wait for a single event, without registering an event watcher
538 * if timeout is < 0, do wait indefinitely
539 */
540void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg);
541
542# if EV_MINIMAL < 2
543unsigned int ev_loop_count (EV_P); /* number of loop iterations */
544unsigned int ev_loop_depth (EV_P); /* #ev_loop enters - #ev_loop leaves */
545void ev_loop_verify (EV_P); /* abort if loop data corrupted */
546
517void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ 547void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
518void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */ 548void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
519 549
520/* 550/*
521 * ref/unref can be used to add or remove a refcount on the mainloop. every watcher 551 * a single void * can be attached to each loop. this is intended
522 * keeps one reference. if you have a long-runing watcher you never unregister that 552 * to aid the invoke_pending/blocking callbacks.
523 * should not keep ev_loop from running, unref() after starting, and ref() before stopping.
524 */ 553 */
554void ev_set_userdata (EV_P_ void *data);
555void *ev_userdata (EV_P);
556
557/*
558 * hooks to overide how and when libev invokes callbacks,
559 * and hooks that wrap the actual eventloop blocking call.
560 */
561void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P));
562void ev_set_blocking_cb (EV_P_ void (*suspend_cb_)(EV_P), void (*resume_cb_)(EV_P));
563
564void ev_invoke_pending (EV_P); /* invoke all pending watchers */
565
566/*
567 * stop/start the timer handling.
568 */
569void ev_suspend (EV_P);
525void ev_ref (EV_P); 570void ev_resume (EV_P);
526void ev_unref (EV_P); 571#endif
527 572
528/* convenience function, wait for a single event, without registering an event watcher */
529/* if timeout is < 0, do wait indefinitely */
530void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg);
531#endif 573#endif
532 574
533/* these may evaluate ev multiple times, and the other arguments at most once */ 575/* these may evaluate ev multiple times, and the other arguments at most once */
534/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ 576/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */
535#define ev_init(ev,cb_) do { \ 577#define ev_init(ev,cb_) do { \
536 ((ev_watcher *)(void *)(ev))->active = \ 578 ((ev_watcher *)(void *)(ev))->active = \
537 ((ev_watcher *)(void *)(ev))->pending = \ 579 ((ev_watcher *)(void *)(ev))->pending = 0; \
538 ((ev_watcher *)(void *)(ev))->priority = 0; \ 580 ev_set_priority ((ev), 0); \
539 ev_set_cb ((ev), cb_); \ 581 ev_set_cb ((ev), cb_); \
540} while (0) 582} while (0)
541 583
542#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV__IOFDSET; } while (0) 584#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV__IOFDSET; } while (0)
543#define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0) 585#define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0)
566#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0) 608#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0)
567 609
568#define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ 610#define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */
569#define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ 611#define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */
570 612
571#define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0)
572#define ev_cb(ev) (ev)->cb /* rw */ 613#define ev_cb(ev) (ev)->cb /* rw */
614
615#if EV_MINPRI == EV_MAXPRI
616# define ev_priority(ev) ((ev), EV_MINPRI)
617# define ev_set_priority(ev,pri) ((ev), (pri))
618#else
619# define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0)
573#define ev_set_priority(ev,pri) ((ev_watcher *)(void *)(ev))->priority = (pri) 620# define ev_set_priority(ev,pri) ( (ev_watcher *)(void *)(ev))->priority = (pri)
621#endif
574 622
575#define ev_periodic_at(ev) (((ev_watcher_time *)(ev))->at + 0.) 623#define ev_periodic_at(ev) (((ev_watcher_time *)(ev))->at + 0.)
576 624
577#ifndef ev_set_cb 625#ifndef ev_set_cb
578# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) 626# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)

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