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Comparing libev/ev.h (file contents):
Revision 1.27 by root, Sat Nov 3 21:58:51 2007 UTC vs.
Revision 1.36 by root, Tue Nov 6 00:10:04 2007 UTC

… …
42#endif 42#endif
43#ifndef EV_MAXPRI 43#ifndef EV_MAXPRI
44# define EV_MAXPRI +2 44# define EV_MAXPRI +2
45#endif 45#endif
46 46
47#ifndef EV_MULTIPLICITY
48# define EV_MULTIPLICITY 1
49#endif
50
51/* support multiple event loops? */
52#if EV_MULTIPLICITY
53struct ev_loop;
54# define EV_P struct ev_loop *loop
55# define EV_P_ EV_P,
56# define EV_A loop
57# define EV_A_ EV_A,
58#else
47#define EV_P void 59# define EV_P void
48#define EV_P_ 60# define EV_P_
49#define EV_A 61# define EV_A
50#define EV_A_ 62# define EV_A_
63#endif
51 64
52/* eventmask, revents, events... */ 65/* eventmask, revents, events... */
53#define EV_UNDEF -1 /* guaranteed to be invalid */ 66#define EV_UNDEF -1 /* guaranteed to be invalid */
54#define EV_NONE 0x00 67#define EV_NONE 0x00
55#define EV_READ 0x01 68#define EV_READ 0x01
… …
83 96
84/* shared by all watchers */ 97/* shared by all watchers */
85#define EV_WATCHER(type) \ 98#define EV_WATCHER(type) \
86 int active; /* private */ \ 99 int active; /* private */ \
87 int pending; /* private */ \ 100 int pending; /* private */ \
88 int priority; /* ro */ \ 101 int priority; /* private */ \
89 EV_COMMON; /* rw */ \ 102 EV_COMMON; /* rw */ \
90 void (*cb)(EV_P_ struct type *, int revents); /* rw */ /* gets invoked with an eventmask */ 103 void (*cb)(EV_P_ struct type *, int revents); /* private */ /* gets invoked with an eventmask */
91 104
92#define EV_WATCHER_LIST(type) \ 105#define EV_WATCHER_LIST(type) \
93 EV_WATCHER (type); \ 106 EV_WATCHER (type); \
94 struct ev_watcher_list *next /* private */ 107 struct ev_watcher_list *next /* private */
95 108
… …
143/* invoked when the given signal has been received */ 156/* invoked when the given signal has been received */
144/* revent EV_SIGNAL */ 157/* revent EV_SIGNAL */
145struct ev_signal 158struct ev_signal
146{ 159{
147 EV_WATCHER_LIST (ev_signal); 160 EV_WATCHER_LIST (ev_signal);
161#if EV_MULTIPLICITY
162 struct ev_loop *loop;
163#endif
148 164
149 int signum; /* ro */ 165 int signum; /* ro */
150}; 166};
151 167
152/* invoked when the nothing else needs to be done, keeps the process from blocking */ 168/* invoked when the nothing else needs to be done, keeps the process from blocking */
… …
179 EV_WATCHER_LIST (ev_child); 195 EV_WATCHER_LIST (ev_child);
180 196
181 int pid; /* ro */ 197 int pid; /* ro */
182 int rpid; /* rw, holds the received pid */ 198 int rpid; /* rw, holds the received pid */
183 int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */ 199 int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */
200};
201
202union ev_any_watcher
203{
204 struct ev_watcher w;
205 struct ev_watcher_list wl;
206 struct ev_io io;
207 struct ev_timer timer;
208 struct ev_periodic periodic;
209 struct ev_signal signal;
210 struct ev_idle idle;
211 struct ev_child child;
212 struct ev_prepare prepare;
213 struct ev_check check;
184}; 214};
185 215
186#define EVMETHOD_AUTO 0 /* consults environment */ 216#define EVMETHOD_AUTO 0 /* consults environment */
187#define EVMETHOD_SELECT 1 217#define EVMETHOD_SELECT 1
188#define EVMETHOD_POLL 2 218#define EVMETHOD_POLL 2
189#define EVMETHOD_EPOLL 4 219#define EVMETHOD_EPOLL 4
190#define EVMETHOD_KQUEUE 8 220#define EVMETHOD_KQUEUE 8
191#define EVMETHOD_DEVPOLL 16 /* NYI */ 221#define EVMETHOD_DEVPOLL 16 /* NYI */
192#define EVMETHOD_PORT 32 /* NYI */ 222#define EVMETHOD_PORT 32 /* NYI */
223#define EVMETHOD_WIN32 64 /* NYI */
193#define EVMETHOD_ANY ~0 /* any method, do not consult env */ 224#define EVMETHOD_ANY ~0 /* any method, do not consult env */
225
194#if EV_PROTOTYPES 226#if EV_PROTOTYPES
195int ev_method (EV_P);
196int ev_init (EV_P_ int methods); /* returns ev_method */
197int ev_version_major (void); 227int ev_version_major (void);
198int ev_version_minor (void); 228int ev_version_minor (void);
199 229
200/* these three calls are suitable for plugging into pthread_atfork */
201void ev_fork_prepare (void);
202void ev_fork_parent (void);
203void ev_fork_child (void);
204
205ev_tstamp ev_time (void); 230ev_tstamp ev_time (void);
231
232/* Sets the allocation function to use, works like realloc.
233 * It is used to allocate and free memory.
234 * If it returns zero when memory needs to be allocated, the library might abort
235 * or take some potentially destructive action.
236 * The default is your system realloc function.
237 */
238void ev_set_allocator (void *(*cb)(void *ptr, long size));
239
240/* set the callback function to call on a
241 * retryable syscall error
242 * (such as failed select, poll, epoll_wait)
243 */
244void ev_set_syserr_cb (void (*cb)(void));
245
246# if EV_MULTIPLICITY
247/* the default loop is the only one that handles signals and child watchers */
248/* you can call this as often as you like */
249struct ev_loop *ev_default_loop (int methods); /* returns default loop */
250
251/* create and destroy alternative loops that don't handle signals */
252struct ev_loop *ev_loop_new (int methods);
253void ev_loop_destroy (EV_P);
254void ev_loop_fork (EV_P);
255# else
256int ev_default_loop (int methods); /* returns true when successful */
257# endif
258
259void ev_default_destroy (void); /* destroy the default loop */
260/* this needs to be called after fork, to duplicate the default loop */
261/* if you create alternative loops you have to call ev_loop_fork on them */
262/* you can call it in either the parent or the child */
263/* you can actually call it at any time, anywhere :) */
264void ev_default_fork (void);
265
266int ev_method (EV_P);
206#endif 267#endif
207 268
208#define EVLOOP_NONBLOCK 1 /* do not block/wait */ 269#define EVLOOP_NONBLOCK 1 /* do not block/wait */
209#define EVLOOP_ONESHOT 2 /* block *once* only */ 270#define EVLOOP_ONESHOT 2 /* block *once* only */
271#define EVUNLOOP_ONCE 1 /* unloop once */
272#define EVUNLOOP_ALL 2 /* unloop all loops */
273
210#if EV_PROTOTYPES 274#if EV_PROTOTYPES
211void ev_loop (EV_P_ int flags); 275void ev_loop (EV_P_ int flags);
212void ev_unloop (EV_P_ int status); /* set to 1 to break out of event loop, set to 2 to break out of all event loops */ 276void 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 */
213 277
214ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */ 278ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */
215 279
216/* 280/*
217 * ref/unref can be used to add or remove a refcount on the mainloop. every watcher 281 * ref/unref can be used to add or remove a refcount on the mainloop. every watcher
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226void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); 290void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg);
227#endif 291#endif
228 292
229/* these may evaluate ev multiple times, and the other arguments at most once */ 293/* these may evaluate ev multiple times, and the other arguments at most once */
230/* either use ev_watcher_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ 294/* either use ev_watcher_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */
231#define ev_watcher_init(ev,cb_) do { (ev)->active = (ev)->pending = (ev)->priority = 0; (ev)->cb = (cb_); } while (0) 295#define ev_watcher_init(ev,cb_) do { \
296 ((struct ev_watcher *)(void *)(ev))->active = \
297 ((struct ev_watcher *)(void *)(ev))->pending = \
298 ((struct ev_watcher *)(void *)(ev))->priority = 0; \
299 (ev)->cb = (cb_); \
300} while (0)
232 301
233#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0) 302#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0)
234#define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) 303#define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0)
235#define ev_periodic_set(ev,at_,interval_) do { (ev)->at = (at_); (ev)->interval = (interval_); } while (0) 304#define ev_periodic_set(ev,at_,interval_) do { (ev)->at = (at_); (ev)->interval = (interval_); } while (0)
236#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) 305#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)
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246#define ev_idle_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) 315#define ev_idle_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)
247#define ev_prepare_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) 316#define ev_prepare_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)
248#define ev_check_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_check_set ((ev)); } while (0) 317#define ev_check_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_check_set ((ev)); } while (0)
249#define ev_child_init(ev,cb,pid) do { ev_watcher_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0) 318#define ev_child_init(ev,cb,pid) do { ev_watcher_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0)
250 319
320#define ev_is_pending(ev) (0 + ((struct ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */
251#define ev_is_active(ev) (0 + (ev)->active) /* true when the watcher has been started */ 321#define ev_is_active(ev) (0 + ((struct ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */
322
323#define ev_priority(ev) ((struct ev_watcher *)(void *)(ev))->priority /* rw */
324#define ev_cb(ev) (ev)->cb /* rw */
252#define ev_set_priority(ev,pri) (ev)->priority = pri 325#define ev_set_priority(ev,pri) ev_priority (ev) = (pri)
326#define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)
253 327
254/* stopping (enabling, adding) a watcher does nothing if it is already running */ 328/* stopping (enabling, adding) a watcher does nothing if it is already running */
255/* stopping (disabling, deleting) a watcher does nothing unless its already running */ 329/* stopping (disabling, deleting) a watcher does nothing unless its already running */
256#if EV_PROTOTYPES 330#if EV_PROTOTYPES
257void ev_io_start (EV_P_ struct ev_io *w); 331void ev_io_start (EV_P_ struct ev_io *w);
258void ev_io_stop (EV_P_ struct ev_io *w); 332void ev_io_stop (EV_P_ struct ev_io *w);
259 333
260void ev_timer_start (EV_P_ struct ev_timer *w); 334void ev_timer_start (EV_P_ struct ev_timer *w);
261void ev_timer_stop (EV_P_ struct ev_timer *w); 335void ev_timer_stop (EV_P_ struct ev_timer *w);
262void ev_timer_again (EV_P_ struct ev_timer *w); /* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ 336/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */
337void ev_timer_again (EV_P_ struct ev_timer *w);
263 338
264void ev_periodic_start (EV_P_ struct ev_periodic *w); 339void ev_periodic_start (EV_P_ struct ev_periodic *w);
265void ev_periodic_stop (EV_P_ struct ev_periodic *w); 340void ev_periodic_stop (EV_P_ struct ev_periodic *w);
266 341
342void ev_idle_start (EV_P_ struct ev_idle *w);
343void ev_idle_stop (EV_P_ struct ev_idle *w);
344
345void ev_prepare_start (EV_P_ struct ev_prepare *w);
346void ev_prepare_stop (EV_P_ struct ev_prepare *w);
347
348void ev_check_start (EV_P_ struct ev_check *w);
349void ev_check_stop (EV_P_ struct ev_check *w);
350
351/* only supported in the default loop */
267void ev_signal_start (EV_P_ struct ev_signal *w); 352void ev_signal_start (EV_P_ struct ev_signal *w);
268void ev_signal_stop (EV_P_ struct ev_signal *w); 353void ev_signal_stop (EV_P_ struct ev_signal *w);
269 354
270void ev_idle_start (EV_P_ struct ev_idle *w); 355/* only supported in the default loop */
271void ev_idle_stop (EV_P_ struct ev_idle *w);
272
273void ev_prepare_start (EV_P_ struct ev_prepare *w);
274void ev_prepare_stop (EV_P_ struct ev_prepare *w);
275
276void ev_check_start (EV_P_ struct ev_check *w);
277void ev_check_stop (EV_P_ struct ev_check *w);
278
279void ev_child_start (EV_P_ struct ev_child *w); 356void ev_child_start (EV_P_ struct ev_child *w);
280void ev_child_stop (EV_P_ struct ev_child *w); 357void ev_child_stop (EV_P_ struct ev_child *w);
281#endif 358#endif
282 359
283#ifdef __cplusplus 360#ifdef __cplusplus

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