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Comparing libev/ev.h (file contents):
Revision 1.94 by root, Tue Feb 19 17:09:28 2008 UTC vs.
Revision 1.101 by root, Wed May 21 23:25:21 2008 UTC

… …
98struct ev_loop; 98struct ev_loop;
99# define EV_P struct ev_loop *loop 99# define EV_P struct ev_loop *loop
100# define EV_P_ EV_P, 100# define EV_P_ EV_P,
101# define EV_A loop 101# define EV_A loop
102# define EV_A_ EV_A, 102# define EV_A_ EV_A,
103# define EV_DEFAULT_UC ev_default_loop_uc ()
104# define EV_DEFAULT_UC_ EV_DEFAULT_UC,
103# define EV_DEFAULT ev_default_loop (0) 105# define EV_DEFAULT ev_default_loop (0)
104# define EV_DEFAULT_ EV_DEFAULT, 106# define EV_DEFAULT_ EV_DEFAULT,
105#else 107#else
106# define EV_P void 108# define EV_P void
107# define EV_P_ 109# define EV_P_
108# define EV_A 110# define EV_A
109# define EV_A_ 111# define EV_A_
110# define EV_DEFAULT 112# define EV_DEFAULT
111# define EV_DEFAULT_ 113# define EV_DEFAULT_
112 114# define EV_DEFAULT_UC
115# define EV_DEFAULT_UC_
113# undef EV_EMBED_ENABLE 116# undef EV_EMBED_ENABLE
114#endif 117#endif
115 118
119#if __STDC_VERSION__ >= 199901L || __GNUC__ >= 3
120# define EV_INLINE static inline
121#else
122# define EV_INLINE static
123#endif
124
125/*****************************************************************************/
126
116/* eventmask, revents, events... */ 127/* eventmask, revents, events... */
117#define EV_UNDEF -1L /* guaranteed to be invalid */ 128#define EV_UNDEF -1 /* guaranteed to be invalid */
118#define EV_NONE 0x00L /* no events */ 129#define EV_NONE 0x00 /* no events */
119#define EV_READ 0x01L /* ev_io detected read will not block */ 130#define EV_READ 0x01 /* ev_io detected read will not block */
120#define EV_WRITE 0x02L /* ev_io detected write will not block */ 131#define EV_WRITE 0x02 /* ev_io detected write will not block */
121#define EV_IOFDSET 0x80L /* internal use only */ 132#define EV_IOFDSET 0x80 /* internal use only */
122#define EV_TIMEOUT 0x00000100L /* timer timed out */ 133#define EV_TIMEOUT 0x00000100 /* timer timed out */
123#define EV_PERIODIC 0x00000200L /* periodic timer timed out */ 134#define EV_PERIODIC 0x00000200 /* periodic timer timed out */
124#define EV_SIGNAL 0x00000400L /* signal was received */ 135#define EV_SIGNAL 0x00000400 /* signal was received */
125#define EV_CHILD 0x00000800L /* child/pid had status change */ 136#define EV_CHILD 0x00000800 /* child/pid had status change */
126#define EV_STAT 0x00001000L /* stat data changed */ 137#define EV_STAT 0x00001000 /* stat data changed */
127#define EV_IDLE 0x00002000L /* event loop is idling */ 138#define EV_IDLE 0x00002000 /* event loop is idling */
128#define EV_PREPARE 0x00004000L /* event loop about to poll */ 139#define EV_PREPARE 0x00004000 /* event loop about to poll */
129#define EV_CHECK 0x00008000L /* event loop finished poll */ 140#define EV_CHECK 0x00008000 /* event loop finished poll */
130#define EV_EMBED 0x00010000L /* embedded event loop needs sweep */ 141#define EV_EMBED 0x00010000 /* embedded event loop needs sweep */
131#define EV_FORK 0x00020000L /* event loop resumed in child */ 142#define EV_FORK 0x00020000 /* event loop resumed in child */
132#define EV_ASYNC 0x00040000L /* async intra-loop signal */ 143#define EV_ASYNC 0x00040000 /* async intra-loop signal */
133#define EV_ERROR 0x80000000L /* sent when an error occurs */ 144#define EV_ERROR 0x80000000 /* sent when an error occurs */
134 145
135/* can be used to add custom fields to all watchers, while losing binary compatibility */ 146/* can be used to add custom fields to all watchers, while losing binary compatibility */
136#ifndef EV_COMMON 147#ifndef EV_COMMON
137# define EV_COMMON void *data; 148# define EV_COMMON void *data;
138#endif 149#endif
… …
153/* 164/*
154 * struct member types: 165 * struct member types:
155 * private: you can look at them, but not change them, and they might not mean anything to you. 166 * private: you can look at them, but not change them, and they might not mean anything to you.
156 * ro: can be read anytime, but only changed when the watcher isn't active 167 * ro: can be read anytime, but only changed when the watcher isn't active
157 * rw: can be read and modified anytime, even when the watcher is active 168 * rw: can be read and modified anytime, even when the watcher is active
169 *
170 * some internal details that might be helpful for debugging:
171 *
172 * active is either 0, which means the watcher is not active,
173 * or the array index of the watcher (periodics, timers)
174 * or the array index + 1 (most other watchers)
175 * or simply 1 for watchers that aren't in some array.
176 * pending is either 0, in which case the watcher isn't,
177 * or the array index + 1 in the pendings array.
158 */ 178 */
159 179
160/* shared by all watchers */ 180/* shared by all watchers */
161#define EV_WATCHER(type) \ 181#define EV_WATCHER(type) \
162 int active; /* private */ \ 182 int active; /* private */ \
… …
324{ 344{
325 EV_WATCHER (ev_async) 345 EV_WATCHER (ev_async)
326 346
327 EV_ATOMIC_T sent; /* private */ 347 EV_ATOMIC_T sent; /* private */
328} ev_async; 348} ev_async;
349
350# define ev_async_pending(w) ((w)->sent + 0)
329#endif 351#endif
330 352
331/* the presence of this union forces similar struct layout */ 353/* the presence of this union forces similar struct layout */
332union ev_any_watcher 354union ev_any_watcher
333{ 355{
… …
351 struct ev_fork fork; 373 struct ev_fork fork;
352#endif 374#endif
353#if EV_EMBED_ENABLE 375#if EV_EMBED_ENABLE
354 struct ev_embed embed; 376 struct ev_embed embed;
355#endif 377#endif
356#if EV_ASYND_ENABLE 378#if EV_ASYNC_ENABLE
357 struct ev_async async; 379 struct ev_async async;
358#endif 380#endif
359}; 381};
360 382
361/* bits for ev_default_loop and ev_loop_new */ 383/* bits for ev_default_loop and ev_loop_new */
362/* the default */ 384/* the default */
363#define EVFLAG_AUTO 0x00000000UL /* not quite a mask */ 385#define EVFLAG_AUTO 0x00000000U /* not quite a mask */
364/* flag bits */ 386/* flag bits */
365#define EVFLAG_NOENV 0x01000000UL /* do NOT consult environment */ 387#define EVFLAG_NOENV 0x01000000U /* do NOT consult environment */
366#define EVFLAG_FORKCHECK 0x02000000UL /* check for a fork in each iteration */ 388#define EVFLAG_FORKCHECK 0x02000000U /* check for a fork in each iteration */
367/* method bits to be ored together */ 389/* method bits to be ored together */
368#define EVBACKEND_SELECT 0x00000001UL /* about anywhere */ 390#define EVBACKEND_SELECT 0x00000001U /* about anywhere */
369#define EVBACKEND_POLL 0x00000002UL /* !win */ 391#define EVBACKEND_POLL 0x00000002U /* !win */
370#define EVBACKEND_EPOLL 0x00000004UL /* linux */ 392#define EVBACKEND_EPOLL 0x00000004U /* linux */
371#define EVBACKEND_KQUEUE 0x00000008UL /* bsd */ 393#define EVBACKEND_KQUEUE 0x00000008U /* bsd */
372#define EVBACKEND_DEVPOLL 0x00000010UL /* solaris 8 */ /* NYI */ 394#define EVBACKEND_DEVPOLL 0x00000010U /* solaris 8 */ /* NYI */
373#define EVBACKEND_PORT 0x00000020UL /* solaris 10 */ 395#define EVBACKEND_PORT 0x00000020U /* solaris 10 */
374 396
375#if EV_PROTOTYPES 397#if EV_PROTOTYPES
376int ev_version_major (void); 398int ev_version_major (void);
377int ev_version_minor (void); 399int ev_version_minor (void);
378 400
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396 * (such as failed select, poll, epoll_wait) 418 * (such as failed select, poll, epoll_wait)
397 */ 419 */
398void ev_set_syserr_cb (void (*cb)(const char *msg)); 420void ev_set_syserr_cb (void (*cb)(const char *msg));
399 421
400# if EV_MULTIPLICITY 422# if EV_MULTIPLICITY
423EV_INLINE struct ev_loop *
424ev_default_loop_uc (void)
425{
426 extern struct ev_loop *ev_default_loop_ptr;
427
428 return ev_default_loop_ptr;
429}
430
401/* the default loop is the only one that handles signals and child watchers */ 431/* the default loop is the only one that handles signals and child watchers */
402/* you can call this as often as you like */ 432/* you can call this as often as you like */
403static struct ev_loop * 433EV_INLINE struct ev_loop *
404ev_default_loop (unsigned int flags) 434ev_default_loop (unsigned int flags)
405{ 435{
406 extern struct ev_loop *ev_default_loop_ptr; 436 struct ev_loop *loop = ev_default_loop_uc ();
437
438 if (!loop)
439 {
407 extern struct ev_loop *ev_default_loop_init (unsigned int flags); 440 extern struct ev_loop *ev_default_loop_init (unsigned int flags);
408 441
409 if (!ev_default_loop_ptr)
410 ev_default_loop_init (flags); 442 loop = ev_default_loop_init (flags);
443 }
411 444
412 return ev_default_loop_ptr; 445 return loop;
413} 446}
414 447
415/* create and destroy alternative loops that don't handle signals */ 448/* create and destroy alternative loops that don't handle signals */
416struct ev_loop *ev_loop_new (unsigned int flags); 449struct ev_loop *ev_loop_new (unsigned int flags);
417void ev_loop_destroy (EV_P); 450void ev_loop_destroy (EV_P);
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421 454
422# else 455# else
423 456
424int ev_default_loop (unsigned int flags); /* returns true when successful */ 457int ev_default_loop (unsigned int flags); /* returns true when successful */
425 458
426static ev_tstamp 459EV_INLINE ev_tstamp
427ev_now (void) 460ev_now (void)
428{ 461{
429 extern ev_tstamp ev_rt_now; 462 extern ev_tstamp ev_rt_now;
430 463
431 return ev_rt_now; 464 return ev_rt_now;
432} 465}
433# endif 466# endif
434 467
435static int 468EV_INLINE int
436ev_is_default_loop (EV_P) 469ev_is_default_loop (EV_P)
437{ 470{
438#if EV_MULTIPLICITY 471#if EV_MULTIPLICITY
439 extern struct ev_loop *ev_default_loop_ptr; 472 extern struct ev_loop *ev_default_loop_ptr;
440 473
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489 ((ev_watcher *)(void *)(ev))->priority = 0; \ 522 ((ev_watcher *)(void *)(ev))->priority = 0; \
490 ev_set_cb ((ev), cb_); \ 523 ev_set_cb ((ev), cb_); \
491} while (0) 524} while (0)
492 525
493#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV_IOFDSET; } while (0) 526#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_) | EV_IOFDSET; } while (0)
494#define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) 527#define ev_timer_set(ev,after_,repeat_) do { ((ev_watcher_time *)(ev))->at = (after_); (ev)->repeat = (repeat_); } while (0)
495#define ev_periodic_set(ev,ofs_,ival_,res_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0) 528#define ev_periodic_set(ev,ofs_,ival_,res_) do { (ev)->offset = (ofs_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0)
496#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) 529#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)
497#define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0) 530#define ev_child_set(ev,pid_,trace_) do { (ev)->pid = (pid_); (ev)->flags = !!(trace_); } while (0)
498#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0) 531#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0)
499#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ 532#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */
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521 554
522#define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0) 555#define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0)
523#define ev_cb(ev) (ev)->cb /* rw */ 556#define ev_cb(ev) (ev)->cb /* rw */
524#define ev_set_priority(ev,pri) ((ev_watcher *)(void *)(ev))->priority = (pri) 557#define ev_set_priority(ev,pri) ((ev_watcher *)(void *)(ev))->priority = (pri)
525 558
559#define ev_periodic_at(ev) (((ev_watcher_time *)(ev))->at + 0.)
560
526#ifndef ev_set_cb 561#ifndef ev_set_cb
527# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) 562# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)
528#endif 563#endif
529 564
530/* stopping (enabling, adding) a watcher does nothing if it is already running */ 565/* stopping (enabling, adding) a watcher does nothing if it is already running */

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