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Comparing libev/ev.h (file contents):
Revision 1.16 by root, Thu Nov 1 06:48:49 2007 UTC vs.
Revision 1.73 by root, Tue Nov 27 19:41:52 2007 UTC

25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */ 28 */
29 29
30#ifndef EV_H 30#ifndef EV_H__
31#define EV_H 31#define EV_H__
32
33#ifdef __cplusplus
34extern "C" {
35#endif
32 36
33typedef double ev_tstamp; 37typedef double ev_tstamp;
34 38
39/* these priorities are inclusive, higher priorities will be called earlier */
40#ifndef EV_MINPRI
41# define EV_MINPRI -2
42#endif
43#ifndef EV_MAXPRI
44# define EV_MAXPRI +2
45#endif
46
47#ifndef EV_MULTIPLICITY
48# define EV_MULTIPLICITY 1
49#endif
50
51#ifndef EV_PERIODIC_ENABLE
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#include <stddef.h> /* for size_t */
70
71#if EV_STAT_ENABLE
72# include <sys/stat.h>
73#endif
74
75/* support multiple event loops? */
76#if EV_MULTIPLICITY
77struct ev_loop;
78# define EV_P struct ev_loop *loop
79# define EV_P_ EV_P,
80# define EV_A loop
81# define EV_A_ EV_A,
82# define EV_DEFAULT ev_default_loop (0)
83# define EV_DEFAULT_ EV_DEFAULT,
84#else
85# define EV_P void
86# define EV_P_
87# define EV_A
88# define EV_A_
89# define EV_DEFAULT
90# define EV_DEFAULT_
91
92# undef EV_EMBED_ENABLE
93#endif
94
35/* eventmask, revents, events... */ 95/* eventmask, revents, events... */
36#define EV_UNDEF -1 /* guaranteed to be invalid */ 96#define EV_UNDEF -1L /* guaranteed to be invalid */
37#define EV_NONE 0x00 97#define EV_NONE 0x00L /* no events */
38#define EV_READ 0x01 98#define EV_READ 0x01L /* ev_io detected read will not block */
39#define EV_WRITE 0x02 99#define EV_WRITE 0x02L /* ev_io detected write will not block */
40#define EV_REIFY 0x04 /* private */ 100#define EV_TIMEOUT 0x00000100L /* timer timed out */
41#define EV_TIMEOUT 0x000100 101#define EV_PERIODIC 0x00000200L /* periodic timer timed out */
42#define EV_SIGNAL 0x000200 102#define EV_SIGNAL 0x00000400L /* signal was received */
43#define EV_IDLE 0x000400 103#define EV_CHILD 0x00000800L /* child/pid had status change */
44#define EV_CHECK 0x000800 104#define EV_STAT 0x00001000L /* stat data changed */
45#define EV_PREPARE 0x001000 105#define EV_IDLE 0x00002000L /* event loop is idling */
46#define EV_CHILD 0x002000 106#define EV_PREPARE 0x00004000L /* event loop about to poll */
107#define EV_CHECK 0x00008000L /* event loop finished poll */
108#define EV_EMBED 0x00010000L /* embedded event loop needs sweep */
109#define EV_FORK 0x00020000L /* event loop resumed in child */
47#define EV_ERROR 0x800000 /* sent when an error occurs */ 110#define EV_ERROR 0x80000000L /* sent when an error occurs */
48 111
49/* can be used to add custom fields to all watchers */ 112/* can be used to add custom fields to all watchers, while losing binary compatibility */
50#ifndef EV_COMMON 113#ifndef EV_COMMON
51# define EV_COMMON void *data 114# define EV_COMMON void *data;
52#endif 115#endif
53#ifndef EV_PROTOTYPES 116#ifndef EV_PROTOTYPES
54# define EV_PROTOTYPES 1 117# define EV_PROTOTYPES 1
55#endif 118#endif
56 119
57#define EV_VERSION_MAJOR 1 120#define EV_VERSION_MAJOR 1
58#define EV_VERSION_MINOR 1 121#define EV_VERSION_MINOR 1
122
123#ifndef EV_CB_DECLARE
124# define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents);
125#endif
126#ifndef EV_CB_INVOKE
127# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents))
128#endif
59 129
60/* 130/*
61 * struct member types: 131 * struct member types:
62 * private: you can look at them, but not change them, and they might not mean anything to you. 132 * private: you can look at them, but not change them, and they might not mean anything to you.
63 * ro: can be read anytime, but only changed when the watcher isn't active 133 * ro: can be read anytime, but only changed when the watcher isn't active
66 136
67/* shared by all watchers */ 137/* shared by all watchers */
68#define EV_WATCHER(type) \ 138#define EV_WATCHER(type) \
69 int active; /* private */ \ 139 int active; /* private */ \
70 int pending; /* private */ \ 140 int pending; /* private */ \
141 int priority; /* private */ \
71 EV_COMMON; /* rw */ \ 142 EV_COMMON /* rw */ \
72 void (*cb)(struct type *, int revents); /* rw */ /* gets invoked with an eventmask */ 143 EV_CB_DECLARE (type) /* private */
73 144
74#define EV_WATCHER_LIST(type) \ 145#define EV_WATCHER_LIST(type) \
75 EV_WATCHER (type); \ 146 EV_WATCHER (type) \
76 struct type *next /* private */ 147 struct ev_watcher_list *next; /* private */
77 148
78#define EV_WATCHER_TIME(type) \ 149#define EV_WATCHER_TIME(type) \
79 EV_WATCHER (type); \ 150 EV_WATCHER (type) \
80 ev_tstamp at /* private */ 151 ev_tstamp at; /* private */
81 152
82/* base class, nothing to see here unless you subclass */ 153/* base class, nothing to see here unless you subclass */
83struct ev_watcher { 154typedef struct ev_watcher
155{
84 EV_WATCHER (ev_watcher); 156 EV_WATCHER (ev_watcher)
85}; 157} ev_watcher;
86 158
87/* base class, nothing to see here unless you subclass */ 159/* base class, nothing to see here unless you subclass */
88struct ev_watcher_list { 160typedef struct ev_watcher_list
161{
89 EV_WATCHER_LIST (ev_watcher_list); 162 EV_WATCHER_LIST (ev_watcher_list)
90}; 163} ev_watcher_list;
91 164
92/* base class, nothing to see here unless you subclass */ 165/* base class, nothing to see here unless you subclass */
93struct ev_watcher_time { 166typedef struct ev_watcher_time
167{
94 EV_WATCHER_TIME (ev_watcher_time); 168 EV_WATCHER_TIME (ev_watcher_time)
95}; 169} ev_watcher_time;
96
97/* invoked after a specific time, repeatable (based on monotonic clock) */
98struct ev_timer
99{
100 EV_WATCHER_TIME (ev_timer);
101
102 ev_tstamp repeat; /* rw */
103};
104
105/* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */
106struct ev_periodic
107{
108 EV_WATCHER_TIME (ev_periodic);
109
110 ev_tstamp interval; /* rw */
111};
112 170
113/* invoked when fd is either EV_READable or EV_WRITEable */ 171/* invoked when fd is either EV_READable or EV_WRITEable */
172/* revent EV_READ, EV_WRITE */
114struct ev_io 173typedef struct ev_io
115{ 174{
116 EV_WATCHER_LIST (ev_io); 175 EV_WATCHER_LIST (ev_io)
117 176
118 int fd; /* ro */ 177 int fd; /* ro */
119 int events; /* ro */ 178 int events; /* ro */
120}; 179} ev_io;
180
181/* invoked after a specific time, repeatable (based on monotonic clock) */
182/* revent EV_TIMEOUT */
183typedef struct ev_timer
184{
185 EV_WATCHER_TIME (ev_timer)
186
187 ev_tstamp repeat; /* rw */
188} ev_timer;
189
190/* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */
191/* revent EV_PERIODIC */
192typedef struct ev_periodic
193{
194 EV_WATCHER_TIME (ev_periodic)
195
196 ev_tstamp interval; /* rw */
197 ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now); /* rw */
198} ev_periodic;
121 199
122/* invoked when the given signal has been received */ 200/* invoked when the given signal has been received */
201/* revent EV_SIGNAL */
123struct ev_signal 202typedef struct ev_signal
124{ 203{
125 EV_WATCHER_LIST (ev_signal); 204 EV_WATCHER_LIST (ev_signal)
126 205
127 int signum; /* ro */ 206 int signum; /* ro */
128}; 207} ev_signal;
208
209/* invoked when sigchld is received and waitpid indicates the given pid */
210/* revent EV_CHILD */
211/* does not support priorities */
212typedef struct ev_child
213{
214 EV_WATCHER_LIST (ev_child)
215
216 int pid; /* ro */
217 int rpid; /* rw, holds the received pid */
218 int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */
219} ev_child;
220
221#if EV_STAT_ENABLE
222/* st_nlink = 0 means missing file or other error */
223#ifdef _WIN32
224typedef struct _stati64 ev_statdata;
225#else
226typedef struct stat ev_statdata;
227#endif
228
229/* invoked each time the stat data changes for a given path */
230/* revent EV_STAT */
231typedef struct ev_stat
232{
233 EV_WATCHER (ev_stat)
234
235 ev_timer timer; /* private */
236 ev_tstamp interval; /* ro */
237 const char *path; /* ro */
238 ev_statdata prev; /* ro */
239 ev_statdata attr; /* ro */
240} ev_stat;
241#endif
129 242
130/* 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 */
244/* revent EV_IDLE */
131struct ev_idle 245typedef struct ev_idle
132{ 246{
133 EV_WATCHER (ev_idle); 247 EV_WATCHER (ev_idle)
134}; 248} ev_idle;
135 249
136/* invoked for each run of the mainloop, just before the blocking call */ 250/* invoked for each run of the mainloop, just before the blocking call */
137/* you can still change events in any way you like */ 251/* you can still change events in any way you like */
252/* revent EV_PREPARE */
138struct ev_prepare 253typedef struct ev_prepare
139{ 254{
140 EV_WATCHER (ev_prepare); 255 EV_WATCHER (ev_prepare)
256} ev_prepare;
257
258/* invoked for each run of the mainloop, just after the blocking call */
259/* revent EV_CHECK */
260typedef struct ev_check
261{
262 EV_WATCHER (ev_check)
263} ev_check;
264
265#if EV_FORK_ENABLE
266/* the callback gets invoked before check in the child process when a fork was detected */
267typedef struct ev_fork
268{
269 EV_WATCHER (ev_fork)
270} ev_fork;
271#endif
272
273#if EV_EMBED_ENABLE
274/* used to embed an event loop inside another */
275/* the callback gets invoked when the event loop has handled events, and can be 0 */
276typedef struct ev_embed
277{
278 EV_WATCHER (ev_embed)
279
280 ev_io io; /* private */
281 struct ev_loop *loop; /* ro */
282} ev_embed;
283#endif
284
285/* the presence of this union forces similar struct layout */
286union ev_any_watcher
287{
288 struct ev_watcher w;
289 struct ev_watcher_list wl;
290
291 struct ev_io io;
292 struct ev_timer timer;
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
299 struct ev_idle idle;
300 struct ev_prepare prepare;
301 struct ev_check check;
302#if EV_FORK_ENABLE
303 struct ev_fork fork;
304#endif
305#if EV_EMBED_ENABLE
306 struct ev_embed embed;
307#endif
141}; 308};
142 309
143/* invoked for each run of the mainloop, just after the blocking call */ 310/* bits for ev_default_loop and ev_loop_new */
144struct ev_check 311/* the default */
145{ 312#define EVFLAG_AUTO 0x00000000UL /* not quite a mask */
146 EV_WATCHER (ev_check); 313/* flag bits */
147}; 314#define EVFLAG_NOENV 0x01000000UL /* do NOT consult environment */
315/* method bits to be ored together */
316#define EVBACKEND_SELECT 0x00000001UL /* about anywhere */
317#define EVBACKEND_POLL 0x00000002UL /* !win */
318#define EVBACKEND_EPOLL 0x00000004UL /* linux */
319#define EVBACKEND_KQUEUE 0x00000008UL /* bsd */
320#define EVBACKEND_DEVPOLL 0x00000010UL /* solaris 8 */ /* NYI */
321#define EVBACKEND_PORT 0x00000020UL /* solaris 10 */
148 322
149/* invoked when sigchld is received and waitpid indicates the givne pid */
150struct ev_child
151{
152 EV_WATCHER_LIST (ev_child);
153
154 int pid; /* ro */
155 int status; /* rw, holds the exit status, use the macros from sys/wait.h */
156};
157
158#define EVMETHOD_NONE 0
159#define EVMETHOD_SELECT 1
160#define EVMETHOD_EPOLL 2
161#if EV_PROTOTYPES 323#if EV_PROTOTYPES
162extern int ev_method;
163int ev_init (int flags); /* returns ev_method */
164int ev_version_major (void); 324int ev_version_major (void);
165int ev_version_minor (void); 325int ev_version_minor (void);
166 326
167/* these three calls are suitable for plugging into pthread_atfork */ 327unsigned int ev_supported_backends (void);
168void ev_prefork (void); 328unsigned int ev_recommended_backends (void);
169void ev_postfork_parent (void); 329unsigned int ev_embeddable_backends (void);
170void ev_postfork_child (void);
171 330
172extern ev_tstamp ev_now; /* time w.r.t. timers and the eventloop, updated after each poll */
173ev_tstamp ev_time (void); 331ev_tstamp ev_time (void);
332
333/* Sets the allocation function to use, works like realloc.
334 * It is used to allocate and free memory.
335 * If it returns zero when memory needs to be allocated, the library might abort
336 * or take some potentially destructive action.
337 * The default is your system realloc function.
338 */
339void ev_set_allocator (void *(*cb)(void *ptr, size_t size));
340
341/* set the callback function to call on a
342 * retryable syscall error
343 * (such as failed select, poll, epoll_wait)
344 */
345void ev_set_syserr_cb (void (*cb)(const char *msg));
346
347# if EV_MULTIPLICITY
348/* the default loop is the only one that handles signals and child watchers */
349/* you can call this as often as you like */
350static struct ev_loop *
351ev_default_loop (unsigned int flags)
352{
353 extern struct ev_loop *ev_default_loop_ptr;
354 extern struct ev_loop *ev_default_loop_init (unsigned int flags);
355
356 if (!ev_default_loop_ptr)
357 ev_default_loop_init (flags);
358
359 return ev_default_loop_ptr;
360}
361
362/* create and destroy alternative loops that don't handle signals */
363struct ev_loop *ev_loop_new (unsigned int flags);
364void ev_loop_destroy (EV_P);
365void ev_loop_fork (EV_P);
366
367ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */
368
369# else
370
371int ev_default_loop (unsigned int flags); /* returns true when successful */
372
373static ev_tstamp
374ev_now (void)
375{
376 extern ev_tstamp ev_rt_now;
377
378 return ev_rt_now;
379}
380# endif
381
382void ev_default_destroy (void); /* destroy the default loop */
383/* this needs to be called after fork, to duplicate the default loop */
384/* if you create alternative loops you have to call ev_loop_fork on them */
385/* you can call it in either the parent or the child */
386/* you can actually call it at any time, anywhere :) */
387void ev_default_fork (void);
388
389unsigned int ev_backend (EV_P);
174#endif 390#endif
175 391
176#define EVLOOP_NONBLOCK 1 /* do not block/wait */ 392#define EVLOOP_NONBLOCK 1 /* do not block/wait */
177#define EVLOOP_ONESHOT 2 /* block *once* only */ 393#define EVLOOP_ONESHOT 2 /* block *once* only */
394#define EVUNLOOP_CANCEL 0 /* undo unloop */
395#define EVUNLOOP_ONE 1 /* unloop once */
396#define EVUNLOOP_ALL 2 /* unloop all loops */
397
178#if EV_PROTOTYPES 398#if EV_PROTOTYPES
179void ev_loop (int flags); 399void ev_loop (EV_P_ int flags);
180extern int ev_loop_done; /* set to 1 to break out of event loop, set to 2 to break out of all event loops */ 400void 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 */
401
402/*
403 * ref/unref can be used to add or remove a refcount on the mainloop. every watcher
404 * keeps one reference. if you have a long-runing watcher you never unregister that
405 * should not keep ev_loop from running, unref() after starting, and ref() before stopping.
406 */
407void ev_ref (EV_P);
408void ev_unref (EV_P);
181 409
182/* convinience function, wait for a single event, without registering an event watcher */ 410/* convinience function, wait for a single event, without registering an event watcher */
183/* if timeout is < 0, do wait indefinitely */ 411/* if timeout is < 0, do wait indefinitely */
184void ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); 412void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg);
185#endif 413#endif
186 414
187/* these may evaluate ev multiple times, and the other arguments at most once */ 415/* these may evaluate ev multiple times, and the other arguments at most once */
188/* either use ev_watcher_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ 416/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */
189#define ev_watcher_init(ev,cb_) do { (ev)->active = 0; (ev)->pending = 0; (ev)->cb = (cb_); } while (0) 417#define ev_init(ev,cb_) do { \
418 ((ev_watcher *)(void *)(ev))->active = \
419 ((ev_watcher *)(void *)(ev))->pending = \
420 ((ev_watcher *)(void *)(ev))->priority = 0; \
421 ev_set_cb ((ev), cb_); \
422} while (0)
190 423
191#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)
192#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)
193#define ev_periodic_set(ev,at_,interval_) do { (ev)->at = (at_); (ev)->interval = (interval_); } while (0) 426#define ev_periodic_set(ev,at_,ival_,res_) do { (ev)->at = (at_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0)
194#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_); } while (0)
195#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 */
196#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 */
197#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 */
198#define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } 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 */
199 435
200#define ev_io_init(ev,cb,fd,events) do { ev_watcher_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)
201#define ev_timer_init(ev,cb,after,repeat) do { ev_watcher_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)
202#define ev_periodic_init(ev,cb,at,interval) do { ev_watcher_init ((ev), (cb)); ev_periodic_set ((ev),(at),(interval)); } 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)
203#define ev_signal_init(ev,cb,signum) do { ev_watcher_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)
204#define ev_idle_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)
205#define ev_prepare_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)
206#define ev_check_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_check_set ((ev)); } while (0)
207#define ev_child_init(ev,cb,pid) do { ev_watcher_init ((ev), (cb)); ev_child_set ((ev),(pid)); } 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)
442#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)
443#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)
444#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } 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)
208 447
448#define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */
209#define ev_is_active(ev) (0 + (ev)->active) /* 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 */
450
451#define ev_priority(ev) ((ev_watcher *)(void *)(ev))->priority /* rw */
452#define ev_cb(ev) (ev)->cb /* rw */
453#define ev_set_priority(ev,pri) ev_priority (ev) = (pri)
454
455#ifndef ev_set_cb
456# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)
457#endif
210 458
211/* stopping (enabling, adding) a watcher does nothing if it is already running */ 459/* stopping (enabling, adding) a watcher does nothing if it is already running */
212/* stopping (disabling, deleting) a watcher does nothing unless its already running */ 460/* stopping (disabling, deleting) a watcher does nothing unless its already running */
213#if EV_PROTOTYPES 461#if EV_PROTOTYPES
462
463/* feeds an event into a watcher as if the event actually occured */
464/* accepts any ev_watcher type */
465void ev_feed_event (EV_P_ void *w, int revents);
466void ev_feed_fd_event (EV_P_ int fd, int revents);
467void ev_feed_signal_event (EV_P_ int signum);
468
214void ev_io_start (struct ev_io *w); 469void ev_io_start (EV_P_ ev_io *w);
215void ev_io_stop (struct ev_io *w); 470void ev_io_stop (EV_P_ ev_io *w);
216 471
217void ev_timer_start (struct ev_timer *w); 472void ev_timer_start (EV_P_ ev_timer *w);
218void ev_timer_stop (struct ev_timer *w); 473void ev_timer_stop (EV_P_ ev_timer *w);
219void ev_timer_again (struct ev_timer *w); /* 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 */
475void ev_timer_again (EV_P_ ev_timer *w);
220 476
477#if EV_PERIODIC_ENABLE
221void ev_periodic_start (struct ev_periodic *w); 478void ev_periodic_start (EV_P_ ev_periodic *w);
222void ev_periodic_stop (struct ev_periodic *w); 479void ev_periodic_stop (EV_P_ ev_periodic *w);
480void ev_periodic_again (EV_P_ ev_periodic *w);
481#endif
223 482
483/* only supported in the default loop */
224void ev_signal_start (struct ev_signal *w); 484void ev_signal_start (EV_P_ ev_signal *w);
225void ev_signal_stop (struct ev_signal *w); 485void ev_signal_stop (EV_P_ ev_signal *w);
226 486
227void ev_idle_start (struct ev_idle *w); 487/* only supported in the default loop */
228void ev_idle_stop (struct ev_idle *w);
229
230void ev_prepare_start (struct ev_prepare *w);
231void ev_prepare_stop (struct ev_prepare *w);
232
233void ev_check_start (struct ev_check *w);
234void ev_check_stop (struct ev_check *w);
235
236void ev_child_start (struct ev_child *w); 488void ev_child_start (EV_P_ ev_child *w);
237void ev_child_stop (struct ev_child *w); 489void ev_child_stop (EV_P_ ev_child *w);
490
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);
238#endif 495# endif
239 496
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);
240#endif 509# endif
241 510
511# if EV_EMBED_ENABLE
512/* only supported when loop to be embedded is in fact embeddable */
513void ev_embed_start (EV_P_ ev_embed *w);
514void ev_embed_stop (EV_P_ ev_embed *w);
515void ev_embed_sweep (EV_P_ ev_embed *w);
516# endif
517
518#endif
519
520#ifdef __cplusplus
521}
522#endif
523
524#endif
525

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