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

Comparing libev/ev.h (file contents):
Revision 1.68 by root, Sat Nov 24 09:48:38 2007 UTC vs.
Revision 1.75 by root, Wed Nov 28 17:32:24 2007 UTC

… …
46 46
47#ifndef EV_MULTIPLICITY 47#ifndef EV_MULTIPLICITY
48# define EV_MULTIPLICITY 1 48# define EV_MULTIPLICITY 1
49#endif 49#endif
50 50
51#ifndef EV_PERIODICS 51#ifndef EV_PERIODIC_ENABLE
52# define EV_PERIODICS 1 52# define EV_PERIODIC_ENABLE 1
53#endif
54
55#ifndef EV_STAT_ENABLE
56# define EV_STAT_ENABLE 1
57#endif
58
59#ifndef EV_FORK_ENABLE
60# define EV_FORK_ENABLE 1
61#endif
62
63#ifndef EV_EMBED_ENABLE
64# define EV_EMBED_ENABLE 1
65#endif
66
67/*****************************************************************************/
68
69#if EV_STAT_ENABLE
70# include <sys/stat.h>
53#endif 71#endif
54 72
55/* support multiple event loops? */ 73/* support multiple event loops? */
56#if EV_MULTIPLICITY 74#if EV_MULTIPLICITY
57struct ev_loop; 75struct ev_loop;
58# define EV_P struct ev_loop *loop 76# define EV_P struct ev_loop *loop
59# define EV_P_ EV_P, 77# define EV_P_ EV_P,
60# define EV_A loop 78# define EV_A loop
61# define EV_A_ EV_A, 79# define EV_A_ EV_A,
62# define EV_DEFAULT_A ev_default_loop (0) 80# define EV_DEFAULT ev_default_loop (0)
63# define EV_DEFAULT_A_ EV_DEFAULT_A, 81# define EV_DEFAULT_ EV_DEFAULT,
64#else 82#else
65# define EV_P void 83# define EV_P void
66# define EV_P_ 84# define EV_P_
67# define EV_A 85# define EV_A
68# define EV_A_ 86# define EV_A_
87# define EV_DEFAULT
69# define EV_DEFAULT_A 88# define EV_DEFAULT_
70# define EV_DEFAULT_A_ 89
90# undef EV_EMBED_ENABLE
71#endif 91#endif
72 92
73/* eventmask, revents, events... */ 93/* eventmask, revents, events... */
74#define EV_UNDEF -1L /* guaranteed to be invalid */ 94#define EV_UNDEF -1L /* guaranteed to be invalid */
75#define EV_NONE 0x00L 95#define EV_NONE 0x00L /* no events */
76#define EV_READ 0x01L /* io only */ 96#define EV_READ 0x01L /* ev_io detected read will not block */
77#define EV_WRITE 0x02L /* io only */ 97#define EV_WRITE 0x02L /* ev_io detected write will not block */
78#define EV_TIMEOUT 0x000100L /* timer only */ 98#define EV_TIMEOUT 0x00000100L /* timer timed out */
79#define EV_PERIODIC 0x000200L /* periodic timer only */ 99#define EV_PERIODIC 0x00000200L /* periodic timer timed out */
80#define EV_SIGNAL 0x000400L /* signal only */ 100#define EV_SIGNAL 0x00000400L /* signal was received */
81#define EV_IDLE 0x000800L /* idle only */
82#define EV_CHECK 0x001000L /* check only */
83#define EV_PREPARE 0x002000L /* prepare only */
84#define EV_CHILD 0x004000L /* child/pid only */ 101#define EV_CHILD 0x00000800L /* child/pid had status change */
102#define EV_STAT 0x00001000L /* stat data changed */
103#define EV_IDLE 0x00002000L /* event loop is idling */
104#define EV_PREPARE 0x00004000L /* event loop about to poll */
105#define EV_CHECK 0x00008000L /* event loop finished poll */
85#define EV_EMBED 0x008000L /* embedded event loop */ 106#define EV_EMBED 0x00010000L /* embedded event loop needs sweep */
107#define EV_FORK 0x00020000L /* event loop resumed in child */
86#define EV_ERROR 0x800000L /* sent when an error occurs */ 108#define EV_ERROR 0x80000000L /* sent when an error occurs */
87 109
88/* can be used to add custom fields to all watchers, while losing binary compatibility */ 110/* can be used to add custom fields to all watchers, while losing binary compatibility */
89#ifndef EV_COMMON 111#ifndef EV_COMMON
90# define EV_COMMON void *data; 112# define EV_COMMON void *data;
91#endif 113#endif
… …
142typedef struct ev_watcher_time 164typedef struct ev_watcher_time
143{ 165{
144 EV_WATCHER_TIME (ev_watcher_time) 166 EV_WATCHER_TIME (ev_watcher_time)
145} ev_watcher_time; 167} ev_watcher_time;
146 168
169/* invoked when fd is either EV_READable or EV_WRITEable */
170/* revent EV_READ, EV_WRITE */
171typedef struct ev_io
172{
173 EV_WATCHER_LIST (ev_io)
174
175 int fd; /* ro */
176 int events; /* ro */
177} ev_io;
178
147/* invoked after a specific time, repeatable (based on monotonic clock) */ 179/* invoked after a specific time, repeatable (based on monotonic clock) */
148/* revent EV_TIMEOUT */ 180/* revent EV_TIMEOUT */
149typedef struct ev_timer 181typedef struct ev_timer
150{ 182{
151 EV_WATCHER_TIME (ev_timer) 183 EV_WATCHER_TIME (ev_timer)
… …
161 193
162 ev_tstamp interval; /* rw */ 194 ev_tstamp interval; /* rw */
163 ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now); /* rw */ 195 ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now); /* rw */
164} ev_periodic; 196} ev_periodic;
165 197
166/* invoked when fd is either EV_READable or EV_WRITEable */
167/* revent EV_READ, EV_WRITE */
168typedef struct ev_io
169{
170 EV_WATCHER_LIST (ev_io)
171
172 int fd; /* ro */
173 int events; /* ro */
174} ev_io;
175
176/* invoked when the given signal has been received */ 198/* invoked when the given signal has been received */
177/* revent EV_SIGNAL */ 199/* revent EV_SIGNAL */
178typedef struct ev_signal 200typedef struct ev_signal
179{ 201{
180 EV_WATCHER_LIST (ev_signal) 202 EV_WATCHER_LIST (ev_signal)
181 203
182 int signum; /* ro */ 204 int signum; /* ro */
183} ev_signal; 205} ev_signal;
206
207/* invoked when sigchld is received and waitpid indicates the given pid */
208/* revent EV_CHILD */
209/* does not support priorities */
210typedef struct ev_child
211{
212 EV_WATCHER_LIST (ev_child)
213
214 int pid; /* ro */
215 int rpid; /* rw, holds the received pid */
216 int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */
217} ev_child;
218
219#if EV_STAT_ENABLE
220/* st_nlink = 0 means missing file or other error */
221# ifdef _WIN32
222typedef struct _stati64 ev_statdata;
223# else
224typedef struct stat ev_statdata;
225# endif
226
227/* invoked each time the stat data changes for a given path */
228/* revent EV_STAT */
229typedef struct ev_stat
230{
231 EV_WATCHER_LIST (ev_stat)
232
233 ev_timer timer; /* private */
234 ev_tstamp interval; /* ro */
235 const char *path; /* ro */
236 ev_statdata prev; /* ro */
237 ev_statdata attr; /* ro */
238
239 int wd; /* wd for inotify, fd for kqueue */
240} ev_stat;
241#endif
184 242
185/* invoked when the nothing else needs to be done, keeps the process from blocking */ 243/* invoked when the nothing else needs to be done, keeps the process from blocking */
186/* revent EV_IDLE */ 244/* revent EV_IDLE */
187typedef struct ev_idle 245typedef struct ev_idle
188{ 246{
… …
202typedef struct ev_check 260typedef struct ev_check
203{ 261{
204 EV_WATCHER (ev_check) 262 EV_WATCHER (ev_check)
205} ev_check; 263} ev_check;
206 264
207/* invoked when sigchld is received and waitpid indicates the given pid */ 265#if EV_FORK_ENABLE
208/* revent EV_CHILD */ 266/* the callback gets invoked before check in the child process when a fork was detected */
209/* does not support priorities */
210typedef struct ev_child 267typedef struct ev_fork
211{ 268{
212 EV_WATCHER_LIST (ev_child) 269 EV_WATCHER (ev_fork)
270} ev_fork;
271#endif
213 272
214 int pid; /* ro */ 273#if EV_EMBED_ENABLE
215 int rpid; /* rw, holds the received pid */
216 int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */
217} ev_child;
218
219#if EV_MULTIPLICITY
220/* used to embed an event loop inside another */ 274/* used to embed an event loop inside another */
221/* 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 */
222typedef struct ev_embed 276typedef struct ev_embed
223{ 277{
224 EV_WATCHER (ev_embed) 278 EV_WATCHER (ev_embed)
… …
235 struct ev_watcher_list wl; 289 struct ev_watcher_list wl;
236 290
237 struct ev_io io; 291 struct ev_io io;
238 struct ev_timer timer; 292 struct ev_timer timer;
239 struct ev_periodic periodic; 293 struct ev_periodic periodic;
294 struct ev_signal signal;
295 struct ev_child child;
296#if EV_STAT_ENABLE
297 struct ev_stat stat;
298#endif
240 struct ev_idle idle; 299 struct ev_idle idle;
241 struct ev_prepare prepare; 300 struct ev_prepare prepare;
242 struct ev_check check; 301 struct ev_check check;
243 struct ev_signal signal; 302#if EV_FORK_ENABLE
244 struct ev_child child; 303 struct ev_fork fork;
245#if EV_MULTIPLICITY 304#endif
305#if EV_EMBED_ENABLE
246 struct ev_embed embed; 306 struct ev_embed embed;
247#endif 307#endif
248}; 308};
249 309
250/* bits for ev_default_loop and ev_loop_new */ 310/* bits for ev_default_loop and ev_loop_new */
… …
363 423
364#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0) 424#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0)
365#define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) 425#define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0)
366#define ev_periodic_set(ev,at_,ival_,res_) do { (ev)->at = (at_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0) 426#define ev_periodic_set(ev,at_,ival_,res_) do { (ev)->at = (at_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0)
367#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) 427#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)
428#define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0)
429#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0)
368#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 */
369#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 */
370#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 */
371#define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0)
372#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)
434#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */
373 435
374#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)
375#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)
376#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)
377#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)
440#define ev_child_init(ev,cb,pid) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0)
441#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_path_set ((ev),(path),(interval)); } while (0)
378#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)
379#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)
380#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)
381#define ev_child_init(ev,cb,pid) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0)
382#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)
446#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)
383 447
384#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 */
385#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 */
386 450
387#define ev_priority(ev) ((ev_watcher *)(void *)(ev))->priority /* rw */ 451#define ev_priority(ev) ((ev_watcher *)(void *)(ev))->priority /* rw */
… …
408void ev_timer_start (EV_P_ ev_timer *w); 472void ev_timer_start (EV_P_ ev_timer *w);
409void ev_timer_stop (EV_P_ ev_timer *w); 473void ev_timer_stop (EV_P_ ev_timer *w);
410/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ 474/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */
411void ev_timer_again (EV_P_ ev_timer *w); 475void ev_timer_again (EV_P_ ev_timer *w);
412 476
413#if EV_PERIODICS 477#if EV_PERIODIC_ENABLE
414void ev_periodic_start (EV_P_ ev_periodic *w); 478void ev_periodic_start (EV_P_ ev_periodic *w);
415void ev_periodic_stop (EV_P_ ev_periodic *w); 479void ev_periodic_stop (EV_P_ ev_periodic *w);
416void ev_periodic_again (EV_P_ ev_periodic *w); 480void ev_periodic_again (EV_P_ ev_periodic *w);
417#endif 481#endif
418 482
419void ev_idle_start (EV_P_ ev_idle *w);
420void ev_idle_stop (EV_P_ ev_idle *w);
421
422void ev_prepare_start (EV_P_ ev_prepare *w);
423void ev_prepare_stop (EV_P_ ev_prepare *w);
424
425void ev_check_start (EV_P_ ev_check *w);
426void ev_check_stop (EV_P_ ev_check *w);
427
428/* only supported in the default loop */ 483/* only supported in the default loop */
429void ev_signal_start (EV_P_ ev_signal *w); 484void ev_signal_start (EV_P_ ev_signal *w);
430void ev_signal_stop (EV_P_ ev_signal *w); 485void ev_signal_stop (EV_P_ ev_signal *w);
431 486
432/* only supported in the default loop */ 487/* only supported in the default loop */
433void ev_child_start (EV_P_ ev_child *w); 488void ev_child_start (EV_P_ ev_child *w);
434void ev_child_stop (EV_P_ ev_child *w); 489void ev_child_stop (EV_P_ ev_child *w);
435 490
436# if EV_MULTIPLICITY 491# if EV_STAT_ENABLE
492void ev_stat_start (EV_P_ ev_stat *w);
493void ev_stat_stop (EV_P_ ev_stat *w);
494void ev_stat_stat (EV_P_ ev_stat *w);
495# endif
496
497void ev_idle_start (EV_P_ ev_idle *w);
498void ev_idle_stop (EV_P_ ev_idle *w);
499
500void ev_prepare_start (EV_P_ ev_prepare *w);
501void ev_prepare_stop (EV_P_ ev_prepare *w);
502
503void ev_check_start (EV_P_ ev_check *w);
504void ev_check_stop (EV_P_ ev_check *w);
505
506# if EV_FORK_ENABLE
507void ev_fork_start (EV_P_ ev_fork *w);
508void ev_fork_stop (EV_P_ ev_fork *w);
509# endif
510
511# if EV_EMBED_ENABLE
437/* only supported when loop to be embedded is in fact embeddable */ 512/* only supported when loop to be embedded is in fact embeddable */
438void ev_embed_start (EV_P_ ev_embed *w); 513void ev_embed_start (EV_P_ ev_embed *w);
439void ev_embed_stop (EV_P_ ev_embed *w); 514void ev_embed_stop (EV_P_ ev_embed *w);
440void ev_embed_sweep (EV_P_ ev_embed *w); 515void ev_embed_sweep (EV_P_ ev_embed *w);
441# endif 516# endif

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines