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

Comparing libev/ev.h (file contents):
Revision 1.23 by root, Fri Nov 2 22:03:00 2007 UTC vs.
Revision 1.28 by root, Sat Nov 3 22:10:39 2007 UTC

… …
40#ifndef EV_MINPRI 40#ifndef EV_MINPRI
41# define EV_MINPRI -2 41# define EV_MINPRI -2
42#endif 42#endif
43#ifndef EV_MAXPRI 43#ifndef EV_MAXPRI
44# define EV_MAXPRI +2 44# define EV_MAXPRI +2
45#endif
46
47/* support multiple event loops? */
48#ifdef EV_MULTIPLICITY
49struct ev_loop;
50# define EV_P struct ev_loop *loop
51# define EV_P_ EV_P,
52# define EV_A loop
53# define EV_A_ EV_A,
54#else
55# define EV_P void
56# define EV_P_
57# define EV_A
58# define EV_A_
59
45#endif 60#endif
46 61
47/* eventmask, revents, events... */ 62/* eventmask, revents, events... */
48#define EV_UNDEF -1 /* guaranteed to be invalid */ 63#define EV_UNDEF -1 /* guaranteed to be invalid */
49#define EV_NONE 0x00 64#define EV_NONE 0x00
… …
80#define EV_WATCHER(type) \ 95#define EV_WATCHER(type) \
81 int active; /* private */ \ 96 int active; /* private */ \
82 int pending; /* private */ \ 97 int pending; /* private */ \
83 int priority; /* ro */ \ 98 int priority; /* ro */ \
84 EV_COMMON; /* rw */ \ 99 EV_COMMON; /* rw */ \
85 void (*cb)(struct type *, int revents); /* rw */ /* gets invoked with an eventmask */ 100 void (*cb)(EV_P_ struct type *, int revents); /* rw */ /* gets invoked with an eventmask */
86 101
87#define EV_WATCHER_LIST(type) \ 102#define EV_WATCHER_LIST(type) \
88 EV_WATCHER (type); \ 103 EV_WATCHER (type); \
89 struct type *next /* private */ 104 struct ev_watcher_list *next /* private */
90 105
91#define EV_WATCHER_TIME(type) \ 106#define EV_WATCHER_TIME(type) \
92 EV_WATCHER (type); \ 107 EV_WATCHER (type); \
93 ev_tstamp at /* private */ 108 ev_tstamp at /* private */
94 109
… …
166 EV_WATCHER (ev_check); 181 EV_WATCHER (ev_check);
167}; 182};
168 183
169/* invoked when sigchld is received and waitpid indicates the givne pid */ 184/* invoked when sigchld is received and waitpid indicates the givne pid */
170/* revent EV_CHILD */ 185/* revent EV_CHILD */
186/* does not support priorities */
171struct ev_child 187struct ev_child
172{ 188{
173 EV_WATCHER_LIST (ev_child); 189 EV_WATCHER_LIST (ev_child);
174 190
175 int pid; /* ro */ 191 int pid; /* ro */
192 int rpid; /* rw, holds the received pid */
176 int status; /* rw, holds the exit status, use the macros from sys/wait.h */ 193 int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */
177}; 194};
178 195
179#define EVMETHOD_AUTO 0 /* consults environment */ 196#define EVMETHOD_AUTO 0 /* consults environment */
180#define EVMETHOD_SELECT 1 197#define EVMETHOD_SELECT 1
181#define EVMETHOD_POLL 2 198#define EVMETHOD_POLL 2
… …
183#define EVMETHOD_KQUEUE 8 200#define EVMETHOD_KQUEUE 8
184#define EVMETHOD_DEVPOLL 16 /* NYI */ 201#define EVMETHOD_DEVPOLL 16 /* NYI */
185#define EVMETHOD_PORT 32 /* NYI */ 202#define EVMETHOD_PORT 32 /* NYI */
186#define EVMETHOD_ANY ~0 /* any method, do not consult env */ 203#define EVMETHOD_ANY ~0 /* any method, do not consult env */
187#if EV_PROTOTYPES 204#if EV_PROTOTYPES
188extern int ev_method; 205int ev_method (EV_P);
189int ev_init (int methods); /* returns ev_method */ 206int ev_init (EV_P_ int methods); /* returns ev_method */
190int ev_version_major (void); 207int ev_version_major (void);
191int ev_version_minor (void); 208int ev_version_minor (void);
192 209
193/* these three calls are suitable for plugging into pthread_atfork */ 210/* these three calls are suitable for plugging into pthread_atfork */
194void ev_fork_prepare (void); 211void ev_fork_prepare (void);
195void ev_fork_parent (void); 212void ev_fork_parent (void);
196void ev_fork_child (void); 213void ev_fork_child (void);
197 214
198extern ev_tstamp ev_now; /* time w.r.t. timers and the eventloop, updated after each poll */
199ev_tstamp ev_time (void); 215ev_tstamp ev_time (void);
200#endif 216#endif
201 217
202#define EVLOOP_NONBLOCK 1 /* do not block/wait */ 218#define EVLOOP_NONBLOCK 1 /* do not block/wait */
203#define EVLOOP_ONESHOT 2 /* block *once* only */ 219#define EVLOOP_ONESHOT 2 /* block *once* only */
204#if EV_PROTOTYPES 220#if EV_PROTOTYPES
205void ev_loop (int flags); 221void ev_loop (EV_P_ int flags);
206extern int ev_loop_done; /* set to 1 to break out of event loop, set to 2 to break out of all event loops */ 222void 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 */
223
224ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */
225
226/*
227 * ref/unref can be used to add or remove a refcount on the mainloop. every watcher
228 * keeps one reference. if you have a long-runing watcher you never unregister that
229 * should not keep ev_loop from running, unref() after starting, and ref() before stopping.
230 */
231void ev_ref (EV_P);
232void ev_unref (EV_P);
207 233
208/* convinience function, wait for a single event, without registering an event watcher */ 234/* convinience function, wait for a single event, without registering an event watcher */
209/* if timeout is < 0, do wait indefinitely */ 235/* if timeout is < 0, do wait indefinitely */
210void ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); 236void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg);
211#endif 237#endif
212 238
213/* these may evaluate ev multiple times, and the other arguments at most once */ 239/* these may evaluate ev multiple times, and the other arguments at most once */
214/* either use ev_watcher_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ 240/* either use ev_watcher_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */
215#define ev_watcher_init(ev,cb_) do { (ev)->active = (ev)->pending = (ev)->priority = 0; (ev)->cb = (cb_); } while (0) 241#define ev_watcher_init(ev,cb_) do { (ev)->active = (ev)->pending = (ev)->priority = 0; (ev)->cb = (cb_); } while (0)
… …
236#define ev_set_priority(ev,pri) (ev)->priority = pri 262#define ev_set_priority(ev,pri) (ev)->priority = pri
237 263
238/* stopping (enabling, adding) a watcher does nothing if it is already running */ 264/* stopping (enabling, adding) a watcher does nothing if it is already running */
239/* stopping (disabling, deleting) a watcher does nothing unless its already running */ 265/* stopping (disabling, deleting) a watcher does nothing unless its already running */
240#if EV_PROTOTYPES 266#if EV_PROTOTYPES
241void ev_io_start (struct ev_io *w); 267void ev_io_start (EV_P_ struct ev_io *w);
242void ev_io_stop (struct ev_io *w); 268void ev_io_stop (EV_P_ struct ev_io *w);
243 269
244void ev_timer_start (struct ev_timer *w); 270void ev_timer_start (EV_P_ struct ev_timer *w);
245void ev_timer_stop (struct ev_timer *w); 271void ev_timer_stop (EV_P_ struct ev_timer *w);
246void ev_timer_again (struct ev_timer *w); /* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ 272void 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 */
247 273
248void ev_periodic_start (struct ev_periodic *w); 274void ev_periodic_start (EV_P_ struct ev_periodic *w);
249void ev_periodic_stop (struct ev_periodic *w); 275void ev_periodic_stop (EV_P_ struct ev_periodic *w);
250 276
251void ev_signal_start (struct ev_signal *w); 277void ev_signal_start (EV_P_ struct ev_signal *w);
252void ev_signal_stop (struct ev_signal *w); 278void ev_signal_stop (EV_P_ struct ev_signal *w);
253 279
254void ev_idle_start (struct ev_idle *w); 280void ev_idle_start (EV_P_ struct ev_idle *w);
255void ev_idle_stop (struct ev_idle *w); 281void ev_idle_stop (EV_P_ struct ev_idle *w);
256 282
257void ev_prepare_start (struct ev_prepare *w); 283void ev_prepare_start (EV_P_ struct ev_prepare *w);
258void ev_prepare_stop (struct ev_prepare *w); 284void ev_prepare_stop (EV_P_ struct ev_prepare *w);
259 285
260void ev_check_start (struct ev_check *w); 286void ev_check_start (EV_P_ struct ev_check *w);
261void ev_check_stop (struct ev_check *w); 287void ev_check_stop (EV_P_ struct ev_check *w);
262 288
263void ev_child_start (struct ev_child *w); 289void ev_child_start (EV_P_ struct ev_child *w);
264void ev_child_stop (struct ev_child *w); 290void ev_child_stop (EV_P_ struct ev_child *w);
265#endif 291#endif
266 292
267#ifdef __cplusplus 293#ifdef __cplusplus
268} 294}
269#endif 295#endif

Diff Legend

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