ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/libev/ev.h
(Generate patch)

Comparing libev/ev.h (file contents):
Revision 1.113 by root, Wed Apr 15 17:49:27 2009 UTC vs.
Revision 1.123 by root, Wed Jul 15 16:58:53 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
157#ifndef EV_PROTOTYPES 161#ifndef EV_PROTOTYPES
158# define EV_PROTOTYPES 1 162# define EV_PROTOTYPES 1
159#endif 163#endif
160 164
161#define EV_VERSION_MAJOR 3 165#define EV_VERSION_MAJOR 3
162#define EV_VERSION_MINOR 0 166#define EV_VERSION_MINOR 7
163 167
164#ifndef EV_CB_DECLARE 168#ifndef EV_CB_DECLARE
165# define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents); 169# define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents);
166#endif 170#endif
167#ifndef EV_CB_INVOKE 171#ifndef EV_CB_INVOKE
183 * or simply 1 for watchers that aren't in some array. 187 * or simply 1 for watchers that aren't in some array.
184 * pending is either 0, in which case the watcher isn't, 188 * pending is either 0, in which case the watcher isn't,
185 * or the array index + 1 in the pendings array. 189 * or the array index + 1 in the pendings array.
186 */ 190 */
187 191
192#if EV_MINPRI == EV_MAXPRI
193# define EV_DECL_PRIORITY
194#else
195# define EV_DECL_PRIORITY int priority;
196#endif
197
188/* shared by all watchers */ 198/* shared by all watchers */
189#define EV_WATCHER(type) \ 199#define EV_WATCHER(type) \
190 int active; /* private */ \ 200 int active; /* private */ \
191 int pending; /* private */ \ 201 int pending; /* private */ \
192 int priority; /* private */ \ 202 EV_DECL_PRIORITY /* private */ \
193 EV_COMMON /* rw */ \ 203 EV_COMMON /* rw */ \
194 EV_CB_DECLARE (type) /* private */ 204 EV_CB_DECLARE (type) /* private */
195 205
196#define EV_WATCHER_LIST(type) \ 206#define EV_WATCHER_LIST(type) \
197 EV_WATCHER (type) \ 207 EV_WATCHER (type) \
455 465
456/* create and destroy alternative loops that don't handle signals */ 466/* create and destroy alternative loops that don't handle signals */
457struct ev_loop *ev_loop_new (unsigned int flags); 467struct ev_loop *ev_loop_new (unsigned int flags);
458void ev_loop_destroy (EV_P); 468void ev_loop_destroy (EV_P);
459void ev_loop_fork (EV_P); 469void ev_loop_fork (EV_P);
460void ev_loop_verify (EV_P);
461 470
462ev_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 */
463void ev_now_update (EV_P);
464 472
465#else 473#else
466 474
467int ev_default_loop (unsigned int flags); /* returns true when successful */ 475int ev_default_loop (unsigned int flags); /* returns true when successful */
468 476
492/* 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 */
493/* you can call it in either the parent or the child */ 501/* you can call it in either the parent or the child */
494/* you can actually call it at any time, anywhere :) */ 502/* you can actually call it at any time, anywhere :) */
495void ev_default_fork (void); 503void ev_default_fork (void);
496 504
497#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
498/* 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 */
499/* callback on every such watcher. The callback might stop the watcher, */ 511/* callback on every such watcher. The callback might stop the watcher, */
500/* but do nothing else with the loop */ 512/* but do nothing else with the loop */
501void 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));
502#endif 514#endif
503 515
504unsigned int ev_backend (EV_P); /* backend in use by loop */
505unsigned int ev_loop_count (EV_P); /* number of loop iterations */
506#endif /* prototypes */ 516#endif /* prototypes */
507 517
508#define EVLOOP_NONBLOCK 1 /* do not block/wait */ 518#define EVLOOP_NONBLOCK 1 /* do not block/wait */
509#define EVLOOP_ONESHOT 2 /* block *once* only */ 519#define EVLOOP_ONESHOT 2 /* block *once* only */
510#define EVUNLOOP_CANCEL 0 /* undo unloop */ 520#define EVUNLOOP_CANCEL 0 /* undo unloop */
513 523
514#if EV_PROTOTYPES 524#if EV_PROTOTYPES
515void ev_loop (EV_P_ int flags); 525void ev_loop (EV_P_ int flags);
516void 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 */
517 527
518void ev_set_io_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
519void ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval); /* sleep at least this time, default 0 */
520
521/* 528/*
522 * ref/unref can be used to add or remove a refcount on the mainloop. every watcher 529 * ref/unref can be used to add or remove a refcount on the mainloop. every watcher
523 * keeps one reference. if you have a long-runing watcher you never unregister that 530 * keeps one reference. if you have a long-running watcher you never unregister that
524 * should not keep ev_loop from running, unref() after starting, and ref() before stopping. 531 * should not keep ev_loop from running, unref() after starting, and ref() before stopping.
525 */ 532 */
526void ev_ref (EV_P); 533void ev_ref (EV_P);
527void ev_unref (EV_P); 534void ev_unref (EV_P);
528 535
536/*
529/* convenience function, wait for a single event, without registering an event watcher */ 537 * convenience function, wait for a single event, without registering an event watcher
530/* if timeout is < 0, do wait indefinitely */ 538 * if timeout is < 0, do wait indefinitely
539 */
531void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); 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
547void ev_set_io_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 */
549
550/* advanced stuff for threading etc. support, see docs */
551void ev_set_userdata (EV_P_ void *data);
552void *ev_userdata (EV_P);
553void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P));
554void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P));
555
556unsigned int ev_pending_count (EV_P); /* number of pending events, if any */
557void ev_invoke_pending (EV_P); /* invoke all pending watchers */
558
559/*
560 * stop/start the timer handling.
561 */
562void ev_suspend (EV_P);
563void ev_resume (EV_P);
564#endif
565
532#endif 566#endif
533 567
534/* these may evaluate ev multiple times, and the other arguments at most once */ 568/* these may evaluate ev multiple times, and the other arguments at most once */
535/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ 569/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */
536#define ev_init(ev,cb_) do { \ 570#define ev_init(ev,cb_) do { \
537 ((ev_watcher *)(void *)(ev))->active = \ 571 ((ev_watcher *)(void *)(ev))->active = \
538 ((ev_watcher *)(void *)(ev))->pending = \ 572 ((ev_watcher *)(void *)(ev))->pending = 0; \
539 ((ev_watcher *)(void *)(ev))->priority = 0; \ 573 ev_set_priority ((ev), 0); \
540 ev_set_cb ((ev), cb_); \ 574 ev_set_cb ((ev), cb_); \
541} while (0) 575} while (0)
542 576
543#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV__IOFDSET; } while (0) 577#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV__IOFDSET; } while (0)
544#define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0) 578#define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0)
567#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0) 601#define ev_async_init(ev,cb) do { ev_init ((ev), (cb)); ev_async_set ((ev)); } while (0)
568 602
569#define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ 603#define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */
570#define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ 604#define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */
571 605
572#define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0)
573#define ev_cb(ev) (ev)->cb /* rw */ 606#define ev_cb(ev) (ev)->cb /* rw */
607
608#if EV_MINPRI == EV_MAXPRI
609# define ev_priority(ev) ((ev), EV_MINPRI)
610# define ev_set_priority(ev,pri) ((ev), (pri))
611#else
612# define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0)
574#define ev_set_priority(ev,pri) ((ev_watcher *)(void *)(ev))->priority = (pri) 613# define ev_set_priority(ev,pri) ( (ev_watcher *)(void *)(ev))->priority = (pri)
614#endif
575 615
576#define ev_periodic_at(ev) (((ev_watcher_time *)(ev))->at + 0.) 616#define ev_periodic_at(ev) (((ev_watcher_time *)(ev))->at + 0.)
577 617
578#ifndef ev_set_cb 618#ifndef ev_set_cb
579# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) 619# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)
596 636
597void ev_timer_start (EV_P_ ev_timer *w); 637void ev_timer_start (EV_P_ ev_timer *w);
598void ev_timer_stop (EV_P_ ev_timer *w); 638void ev_timer_stop (EV_P_ ev_timer *w);
599/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ 639/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */
600void ev_timer_again (EV_P_ ev_timer *w); 640void ev_timer_again (EV_P_ ev_timer *w);
641/* return remaining time */
642ev_tstamp ev_timer_remaining (EV_P_ ev_timer *w);
601 643
602#if EV_PERIODIC_ENABLE 644#if EV_PERIODIC_ENABLE
603void ev_periodic_start (EV_P_ ev_periodic *w); 645void ev_periodic_start (EV_P_ ev_periodic *w);
604void ev_periodic_stop (EV_P_ ev_periodic *w); 646void ev_periodic_stop (EV_P_ ev_periodic *w);
605void ev_periodic_again (EV_P_ ev_periodic *w); 647void ev_periodic_again (EV_P_ ev_periodic *w);

Diff Legend

Removed lines
+ Added lines
< Changed lines
> Changed lines