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Comparing libev/ev.h (file contents):
Revision 1.71 by root, Tue Nov 27 09:17:52 2007 UTC vs.
Revision 1.78 by root, Fri Dec 7 16:44:10 2007 UTC

… …
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
59#ifndef EV_IDLE_ENABLE
60# define EV_IDLE_ENABLE 1
61#endif
62
63#ifndef EV_FORK_ENABLE
64# define EV_FORK_ENABLE 1
65#endif
66
59#ifndef EV_EMBED_ENABLE 67#ifndef EV_EMBED_ENABLE
60# define EV_EMBED_ENABLE 1 68# define EV_EMBED_ENABLE 1
61#endif 69#endif
62 70
63/*****************************************************************************/ 71/*****************************************************************************/
… …
71struct ev_loop; 79struct ev_loop;
72# define EV_P struct ev_loop *loop 80# define EV_P struct ev_loop *loop
73# define EV_P_ EV_P, 81# define EV_P_ EV_P,
74# define EV_A loop 82# define EV_A loop
75# define EV_A_ EV_A, 83# define EV_A_ EV_A,
76# define EV_DEFAULT_A ev_default_loop (0) 84# define EV_DEFAULT ev_default_loop (0)
77# define EV_DEFAULT_A_ EV_DEFAULT_A, 85# define EV_DEFAULT_ EV_DEFAULT,
78#else 86#else
79# define EV_P void 87# define EV_P void
80# define EV_P_ 88# define EV_P_
81# define EV_A 89# define EV_A
82# define EV_A_ 90# define EV_A_
91# define EV_DEFAULT
83# define EV_DEFAULT_A 92# define EV_DEFAULT_
84# define EV_DEFAULT_A_
85 93
86# undef EV_EMBED_ENABLE 94# undef EV_EMBED_ENABLE
87#endif 95#endif
88 96
89/* eventmask, revents, events... */ 97/* eventmask, revents, events... */
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92#define EV_READ 0x01L /* ev_io detected read will not block */ 100#define EV_READ 0x01L /* ev_io detected read will not block */
93#define EV_WRITE 0x02L /* ev_io detected write will not block */ 101#define EV_WRITE 0x02L /* ev_io detected write will not block */
94#define EV_TIMEOUT 0x00000100L /* timer timed out */ 102#define EV_TIMEOUT 0x00000100L /* timer timed out */
95#define EV_PERIODIC 0x00000200L /* periodic timer timed out */ 103#define EV_PERIODIC 0x00000200L /* periodic timer timed out */
96#define EV_SIGNAL 0x00000400L /* signal was received */ 104#define EV_SIGNAL 0x00000400L /* signal was received */
97#define EV_IDLE 0x00000800L /* event loop is idling */
98#define EV_PREPARE 0x00001000L /* event loop about to poll */
99#define EV_CHECK 0x00002000L /* event loop finished poll */
100#define EV_CHILD 0x00004000L /* child/pid had status change */ 105#define EV_CHILD 0x00000800L /* child/pid had status change */
106#define EV_STAT 0x00001000L /* stat data changed */
107#define EV_IDLE 0x00002000L /* event loop is idling */
108#define EV_PREPARE 0x00004000L /* event loop about to poll */
109#define EV_CHECK 0x00008000L /* event loop finished poll */
101#define EV_EMBED 0x00008000L /* embedded event loop needs sweep */ 110#define EV_EMBED 0x00010000L /* embedded event loop needs sweep */
102#define EV_STAT 0x00010000L /* stat data changed */ 111#define EV_FORK 0x00020000L /* event loop resumed in child */
103#define EV_ERROR 0x80000000L /* sent when an error occurs */ 112#define EV_ERROR 0x80000000L /* sent when an error occurs */
104 113
105/* can be used to add custom fields to all watchers, while losing binary compatibility */ 114/* can be used to add custom fields to all watchers, while losing binary compatibility */
106#ifndef EV_COMMON 115#ifndef EV_COMMON
107# define EV_COMMON void *data; 116# define EV_COMMON void *data;
… …
211 int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */ 220 int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */
212} ev_child; 221} ev_child;
213 222
214#if EV_STAT_ENABLE 223#if EV_STAT_ENABLE
215/* st_nlink = 0 means missing file or other error */ 224/* st_nlink = 0 means missing file or other error */
216#ifdef _WIN32 225# ifdef _WIN32
217typedef struct _stati64 ev_statdata; 226typedef struct _stati64 ev_statdata;
218#else 227# else
219typedef struct stat ev_statdata; 228typedef struct stat ev_statdata;
220#endif 229# endif
221 230
222/* invoked each time the stat data changes for a given path */ 231/* invoked each time the stat data changes for a given path */
223/* revent EV_STAT */ 232/* revent EV_STAT */
224typedef struct ev_stat 233typedef struct ev_stat
225{ 234{
226 EV_WATCHER (ev_stat) 235 EV_WATCHER_LIST (ev_stat)
227 236
228 ev_timer timer; /* private */ 237 ev_timer timer; /* private */
229 ev_tstamp interval; /* ro */ 238 ev_tstamp interval; /* ro */
230 const char *path; /* ro */ 239 const char *path; /* ro */
231 ev_statdata prev; /* ro */ 240 ev_statdata prev; /* ro */
232 ev_statdata attr; /* ro */ 241 ev_statdata attr; /* ro */
242
243 int wd; /* wd for inotify, fd for kqueue */
233} ev_stat; 244} ev_stat;
234#endif 245#endif
235 246
247#if EV_IDLE_ENABLE
236/* invoked when the nothing else needs to be done, keeps the process from blocking */ 248/* invoked when the nothing else needs to be done, keeps the process from blocking */
237/* revent EV_IDLE */ 249/* revent EV_IDLE */
238typedef struct ev_idle 250typedef struct ev_idle
239{ 251{
240 EV_WATCHER (ev_idle) 252 EV_WATCHER (ev_idle)
241} ev_idle; 253} ev_idle;
254#endif
242 255
243/* invoked for each run of the mainloop, just before the blocking call */ 256/* invoked for each run of the mainloop, just before the blocking call */
244/* you can still change events in any way you like */ 257/* you can still change events in any way you like */
245/* revent EV_PREPARE */ 258/* revent EV_PREPARE */
246typedef struct ev_prepare 259typedef struct ev_prepare
… …
253typedef struct ev_check 266typedef struct ev_check
254{ 267{
255 EV_WATCHER (ev_check) 268 EV_WATCHER (ev_check)
256} ev_check; 269} ev_check;
257 270
271#if EV_FORK_ENABLE
272/* the callback gets invoked before check in the child process when a fork was detected */
273typedef struct ev_fork
274{
275 EV_WATCHER (ev_fork)
276} ev_fork;
277#endif
278
258#if EV_EMBED_ENABLE 279#if EV_EMBED_ENABLE
259/* used to embed an event loop inside another */ 280/* used to embed an event loop inside another */
260/* the callback gets invoked when the event loop has handled events, and can be 0 */ 281/* the callback gets invoked when the event loop has handled events, and can be 0 */
261typedef struct ev_embed 282typedef struct ev_embed
262{ 283{
… …
274 struct ev_watcher_list wl; 295 struct ev_watcher_list wl;
275 296
276 struct ev_io io; 297 struct ev_io io;
277 struct ev_timer timer; 298 struct ev_timer timer;
278 struct ev_periodic periodic; 299 struct ev_periodic periodic;
300 struct ev_signal signal;
279 struct ev_child child; 301 struct ev_child child;
280#if EV_STAT_ENABLE 302#if EV_STAT_ENABLE
281 struct ev_stat stat; 303 struct ev_stat stat;
282#endif 304#endif
305#if EV_IDLE_ENABLE
283 struct ev_idle idle; 306 struct ev_idle idle;
307#endif
284 struct ev_prepare prepare; 308 struct ev_prepare prepare;
285 struct ev_check check; 309 struct ev_check check;
286 struct ev_signal signal; 310#if EV_FORK_ENABLE
311 struct ev_fork fork;
312#endif
287#if EV_EMBED_ENABLE 313#if EV_EMBED_ENABLE
288 struct ev_embed embed; 314 struct ev_embed embed;
289#endif 315#endif
290}; 316};
291 317
292/* bits for ev_default_loop and ev_loop_new */ 318/* bits for ev_default_loop and ev_loop_new */
293/* the default */ 319/* the default */
294#define EVFLAG_AUTO 0x00000000UL /* not quite a mask */ 320#define EVFLAG_AUTO 0x00000000UL /* not quite a mask */
295/* flag bits */ 321/* flag bits */
296#define EVFLAG_NOENV 0x01000000UL /* do NOT consult environment */ 322#define EVFLAG_NOENV 0x01000000UL /* do NOT consult environment */
323#define EVFLAG_FORKCHECK 0x02000000UL /* check for a fork in each iteration */
297/* method bits to be ored together */ 324/* method bits to be ored together */
298#define EVBACKEND_SELECT 0x00000001UL /* about anywhere */ 325#define EVBACKEND_SELECT 0x00000001UL /* about anywhere */
299#define EVBACKEND_POLL 0x00000002UL /* !win */ 326#define EVBACKEND_POLL 0x00000002UL /* !win */
300#define EVBACKEND_EPOLL 0x00000004UL /* linux */ 327#define EVBACKEND_EPOLL 0x00000004UL /* linux */
301#define EVBACKEND_KQUEUE 0x00000008UL /* bsd */ 328#define EVBACKEND_KQUEUE 0x00000008UL /* bsd */
… …
367/* you can call it in either the parent or the child */ 394/* you can call it in either the parent or the child */
368/* you can actually call it at any time, anywhere :) */ 395/* you can actually call it at any time, anywhere :) */
369void ev_default_fork (void); 396void ev_default_fork (void);
370 397
371unsigned int ev_backend (EV_P); 398unsigned int ev_backend (EV_P);
399unsigned int ev_loop_count (EV_P);
372#endif 400#endif
373 401
374#define EVLOOP_NONBLOCK 1 /* do not block/wait */ 402#define EVLOOP_NONBLOCK 1 /* do not block/wait */
375#define EVLOOP_ONESHOT 2 /* block *once* only */ 403#define EVLOOP_ONESHOT 2 /* block *once* only */
376#define EVUNLOOP_CANCEL 0 /* undo unloop */ 404#define EVUNLOOP_CANCEL 0 /* undo unloop */
… …
394void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); 422void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg);
395#endif 423#endif
396 424
397/* these may evaluate ev multiple times, and the other arguments at most once */ 425/* these may evaluate ev multiple times, and the other arguments at most once */
398/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ 426/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */
399#define ev_init(ev,cb_) do { \ 427#define ev_init(ev,cb_) do { \
400 ((ev_watcher *)(void *)(ev))->active = \ 428 ((ev_watcher *)(void *)(ev))->active = \
401 ((ev_watcher *)(void *)(ev))->pending = \ 429 ((ev_watcher *)(void *)(ev))->pending = \
402 ((ev_watcher *)(void *)(ev))->priority = 0; \ 430 ((ev_watcher *)(void *)(ev))->priority = 0; \
403 ev_set_cb ((ev), cb_); \ 431 ev_set_cb ((ev), cb_); \
404} while (0) 432} while (0)
405 433
406#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0) 434#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0)
407#define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) 435#define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0)
408#define ev_periodic_set(ev,at_,ival_,res_) do { (ev)->at = (at_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0) 436#define ev_periodic_set(ev,at_,ival_,res_) do { (ev)->at = (at_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0)
409#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) 437#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)
410#define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0) 438#define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0)
411#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); } while (0) 439#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0)
412#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ 440#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */
413#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ 441#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */
414#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ 442#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */
415#define ev_embed_set(ev,loop_) do { (ev)->loop = (loop_); } while (0) 443#define ev_embed_set(ev,loop_) do { (ev)->loop = (loop_); } while (0)
444#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */
416 445
417#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) 446#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)
418#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) 447#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)
419#define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0) 448#define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0)
420#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) 449#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)
… …
422#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_path_set ((ev),(path),(interval)); } while (0) 451#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_path_set ((ev),(path),(interval)); } while (0)
423#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) 452#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)
424#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) 453#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)
425#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0) 454#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)
426#define ev_embed_init(ev,cb,loop) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(loop)); } while (0) 455#define ev_embed_init(ev,cb,loop) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(loop)); } while (0)
456#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)
427 457
428#define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */ 458#define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */
429#define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */ 459#define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */
430 460
431#define ev_priority(ev) ((ev_watcher *)(void *)(ev))->priority /* rw */ 461#define ev_priority(ev) ((((ev_watcher *)(void *)(ev))->priority) + 0)
432#define ev_cb(ev) (ev)->cb /* rw */ 462#define ev_cb(ev) (ev)->cb /* rw */
433#define ev_set_priority(ev,pri) ev_priority (ev) = (pri) 463#define ev_set_priority(ev,pri) ((ev_watcher *)(void *)(ev))->priority = (pri)
434 464
435#ifndef ev_set_cb 465#ifndef ev_set_cb
436# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_) 466# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)
437#endif 467#endif
438 468
… …
472void ev_stat_start (EV_P_ ev_stat *w); 502void ev_stat_start (EV_P_ ev_stat *w);
473void ev_stat_stop (EV_P_ ev_stat *w); 503void ev_stat_stop (EV_P_ ev_stat *w);
474void ev_stat_stat (EV_P_ ev_stat *w); 504void ev_stat_stat (EV_P_ ev_stat *w);
475# endif 505# endif
476 506
507# if EV_IDLE_ENABLE
477void ev_idle_start (EV_P_ ev_idle *w); 508void ev_idle_start (EV_P_ ev_idle *w);
478void ev_idle_stop (EV_P_ ev_idle *w); 509void ev_idle_stop (EV_P_ ev_idle *w);
510# endif
479 511
480void ev_prepare_start (EV_P_ ev_prepare *w); 512void ev_prepare_start (EV_P_ ev_prepare *w);
481void ev_prepare_stop (EV_P_ ev_prepare *w); 513void ev_prepare_stop (EV_P_ ev_prepare *w);
482 514
483void ev_check_start (EV_P_ ev_check *w); 515void ev_check_start (EV_P_ ev_check *w);
484void ev_check_stop (EV_P_ ev_check *w); 516void ev_check_stop (EV_P_ ev_check *w);
517
518# if EV_FORK_ENABLE
519void ev_fork_start (EV_P_ ev_fork *w);
520void ev_fork_stop (EV_P_ ev_fork *w);
521# endif
485 522
486# if EV_EMBED_ENABLE 523# if EV_EMBED_ENABLE
487/* only supported when loop to be embedded is in fact embeddable */ 524/* only supported when loop to be embedded is in fact embeddable */
488void ev_embed_start (EV_P_ ev_embed *w); 525void ev_embed_start (EV_P_ ev_embed *w);
489void ev_embed_stop (EV_P_ ev_embed *w); 526void ev_embed_stop (EV_P_ ev_embed *w);

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