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Comparing libev/ev.h (file contents):
Revision 1.20 by root, Fri Nov 2 16:54:35 2007 UTC vs.
Revision 1.74 by root, Wed Nov 28 11:15:55 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 32
33#ifdef __cplusplus 33#ifdef __cplusplus
34extern "C" { 34extern "C" {
35#endif 35#endif
36 36
37typedef double ev_tstamp; 37typedef double ev_tstamp;
38 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
39/* eventmask, revents, events... */ 95/* eventmask, revents, events... */
40#define EV_UNDEF -1 /* guaranteed to be invalid */ 96#define EV_UNDEF -1L /* guaranteed to be invalid */
41#define EV_NONE 0x00 97#define EV_NONE 0x00L /* no events */
42#define EV_READ 0x01 98#define EV_READ 0x01L /* ev_io detected read will not block */
43#define EV_WRITE 0x02 99#define EV_WRITE 0x02L /* ev_io detected write will not block */
44#define EV_TIMEOUT 0x000100 100#define EV_TIMEOUT 0x00000100L /* timer timed out */
45#define EV_PERIODIC 0x000200 101#define EV_PERIODIC 0x00000200L /* periodic timer timed out */
46#define EV_SIGNAL 0x000400 102#define EV_SIGNAL 0x00000400L /* signal was received */
47#define EV_IDLE 0x000800 103#define EV_CHILD 0x00000800L /* child/pid had status change */
48#define EV_CHECK 0x001000 104#define EV_STAT 0x00001000L /* stat data changed */
49#define EV_PREPARE 0x002000 105#define EV_IDLE 0x00002000L /* event loop is idling */
50#define EV_CHILD 0x004000 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 */
51#define EV_ERROR 0x800000 /* sent when an error occurs */ 110#define EV_ERROR 0x80000000L /* sent when an error occurs */
52 111
53/* 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 */
54#ifndef EV_COMMON 113#ifndef EV_COMMON
55# define EV_COMMON void *data 114# define EV_COMMON void *data;
56#endif 115#endif
57#ifndef EV_PROTOTYPES 116#ifndef EV_PROTOTYPES
58# define EV_PROTOTYPES 1 117# define EV_PROTOTYPES 1
59#endif 118#endif
60 119
61#define EV_VERSION_MAJOR 1 120#define EV_VERSION_MAJOR 1
62#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
63 129
64/* 130/*
65 * struct member types: 131 * struct member types:
66 * 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.
67 * 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
… …
70 136
71/* shared by all watchers */ 137/* shared by all watchers */
72#define EV_WATCHER(type) \ 138#define EV_WATCHER(type) \
73 int active; /* private */ \ 139 int active; /* private */ \
74 int pending; /* private */ \ 140 int pending; /* private */ \
141 int priority; /* private */ \
75 EV_COMMON; /* rw */ \ 142 EV_COMMON /* rw */ \
76 void (*cb)(struct type *, int revents); /* rw */ /* gets invoked with an eventmask */ 143 EV_CB_DECLARE (type) /* private */
77 144
78#define EV_WATCHER_LIST(type) \ 145#define EV_WATCHER_LIST(type) \
79 EV_WATCHER (type); \ 146 EV_WATCHER (type) \
80 struct type *next /* private */ 147 struct ev_watcher_list *next; /* private */
81 148
82#define EV_WATCHER_TIME(type) \ 149#define EV_WATCHER_TIME(type) \
83 EV_WATCHER (type); \ 150 EV_WATCHER (type) \
84 ev_tstamp at /* private */ 151 ev_tstamp at; /* private */
85 152
86/* base class, nothing to see here unless you subclass */ 153/* base class, nothing to see here unless you subclass */
87struct ev_watcher { 154typedef struct ev_watcher
155{
88 EV_WATCHER (ev_watcher); 156 EV_WATCHER (ev_watcher)
89}; 157} ev_watcher;
90 158
91/* base class, nothing to see here unless you subclass */ 159/* base class, nothing to see here unless you subclass */
92struct ev_watcher_list { 160typedef struct ev_watcher_list
161{
93 EV_WATCHER_LIST (ev_watcher_list); 162 EV_WATCHER_LIST (ev_watcher_list)
94}; 163} ev_watcher_list;
95 164
96/* base class, nothing to see here unless you subclass */ 165/* base class, nothing to see here unless you subclass */
97struct ev_watcher_time { 166typedef struct ev_watcher_time
167{
98 EV_WATCHER_TIME (ev_watcher_time); 168 EV_WATCHER_TIME (ev_watcher_time)
99}; 169} ev_watcher_time;
170
171/* invoked when fd is either EV_READable or EV_WRITEable */
172/* revent EV_READ, EV_WRITE */
173typedef struct ev_io
174{
175 EV_WATCHER_LIST (ev_io)
176
177 int fd; /* ro */
178 int events; /* ro */
179} ev_io;
100 180
101/* invoked after a specific time, repeatable (based on monotonic clock) */ 181/* invoked after a specific time, repeatable (based on monotonic clock) */
102/* revent EV_TIMEOUT */ 182/* revent EV_TIMEOUT */
103struct ev_timer 183typedef struct ev_timer
104{ 184{
105 EV_WATCHER_TIME (ev_timer); 185 EV_WATCHER_TIME (ev_timer)
106 186
107 ev_tstamp repeat; /* rw */ 187 ev_tstamp repeat; /* rw */
108}; 188} ev_timer;
109 189
110/* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */ 190/* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */
111/* revent EV_PERIODIC */ 191/* revent EV_PERIODIC */
112struct ev_periodic 192typedef struct ev_periodic
113{ 193{
114 EV_WATCHER_TIME (ev_periodic); 194 EV_WATCHER_TIME (ev_periodic)
115 195
116 ev_tstamp interval; /* rw */ 196 ev_tstamp interval; /* rw */
117}; 197 ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now); /* rw */
118 198} ev_periodic;
119/* invoked when fd is either EV_READable or EV_WRITEable */
120/* revent EV_READ, EV_WRITE */
121struct ev_io
122{
123 EV_WATCHER_LIST (ev_io);
124
125 int fd; /* ro */
126 int events; /* ro */
127};
128 199
129/* invoked when the given signal has been received */ 200/* invoked when the given signal has been received */
130/* revent EV_SIGNAL */ 201/* revent EV_SIGNAL */
131struct ev_signal 202typedef struct ev_signal
132{ 203{
133 EV_WATCHER_LIST (ev_signal); 204 EV_WATCHER_LIST (ev_signal)
134 205
135 int signum; /* ro */ 206 int signum; /* ro */
136}; 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_LIST (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
241 int wd; /* wd for inotify, fd for kqueue */
242} ev_stat;
243#endif
137 244
138/* invoked when the nothing else needs to be done, keeps the process from blocking */ 245/* invoked when the nothing else needs to be done, keeps the process from blocking */
139/* revent EV_IDLE */ 246/* revent EV_IDLE */
140struct ev_idle 247typedef struct ev_idle
141{ 248{
142 EV_WATCHER (ev_idle); 249 EV_WATCHER (ev_idle)
143}; 250} ev_idle;
144 251
145/* invoked for each run of the mainloop, just before the blocking call */ 252/* invoked for each run of the mainloop, just before the blocking call */
146/* you can still change events in any way you like */ 253/* you can still change events in any way you like */
147/* revent EV_PREPARE */ 254/* revent EV_PREPARE */
148struct ev_prepare 255typedef struct ev_prepare
149{ 256{
150 EV_WATCHER (ev_prepare); 257 EV_WATCHER (ev_prepare)
151}; 258} ev_prepare;
152 259
153/* invoked for each run of the mainloop, just after the blocking call */ 260/* invoked for each run of the mainloop, just after the blocking call */
154/* revent EV_CHECK */ 261/* revent EV_CHECK */
155struct ev_check 262typedef struct ev_check
156{ 263{
157 EV_WATCHER (ev_check); 264 EV_WATCHER (ev_check)
265} ev_check;
266
267#if EV_FORK_ENABLE
268/* the callback gets invoked before check in the child process when a fork was detected */
269typedef struct ev_fork
270{
271 EV_WATCHER (ev_fork)
272} ev_fork;
273#endif
274
275#if EV_EMBED_ENABLE
276/* used to embed an event loop inside another */
277/* the callback gets invoked when the event loop has handled events, and can be 0 */
278typedef struct ev_embed
279{
280 EV_WATCHER (ev_embed)
281
282 ev_io io; /* private */
283 struct ev_loop *loop; /* ro */
284} ev_embed;
285#endif
286
287/* the presence of this union forces similar struct layout */
288union ev_any_watcher
289{
290 struct ev_watcher w;
291 struct ev_watcher_list wl;
292
293 struct ev_io io;
294 struct ev_timer timer;
295 struct ev_periodic periodic;
296 struct ev_signal signal;
297 struct ev_child child;
298#if EV_STAT_ENABLE
299 struct ev_stat stat;
300#endif
301 struct ev_idle idle;
302 struct ev_prepare prepare;
303 struct ev_check check;
304#if EV_FORK_ENABLE
305 struct ev_fork fork;
306#endif
307#if EV_EMBED_ENABLE
308 struct ev_embed embed;
309#endif
158}; 310};
159 311
160/* invoked when sigchld is received and waitpid indicates the givne pid */ 312/* bits for ev_default_loop and ev_loop_new */
161/* revent EV_CHILD */ 313/* the default */
162struct ev_child 314#define EVFLAG_AUTO 0x00000000UL /* not quite a mask */
163{ 315/* flag bits */
164 EV_WATCHER_LIST (ev_child); 316#define EVFLAG_NOENV 0x01000000UL /* do NOT consult environment */
317/* method bits to be ored together */
318#define EVBACKEND_SELECT 0x00000001UL /* about anywhere */
319#define EVBACKEND_POLL 0x00000002UL /* !win */
320#define EVBACKEND_EPOLL 0x00000004UL /* linux */
321#define EVBACKEND_KQUEUE 0x00000008UL /* bsd */
322#define EVBACKEND_DEVPOLL 0x00000010UL /* solaris 8 */ /* NYI */
323#define EVBACKEND_PORT 0x00000020UL /* solaris 10 */
165 324
166 int pid; /* ro */
167 int status; /* rw, holds the exit status, use the macros from sys/wait.h */
168};
169
170#define EVMETHOD_AUTO 0 /* consults environment */
171#define EVMETHOD_SELECT 1
172#define EVMETHOD_POLL 2
173#define EVMETHOD_EPOLL 4
174#define EVMETHOD_ANY ~0 /* any method, do not consult env */
175#if EV_PROTOTYPES 325#if EV_PROTOTYPES
176extern int ev_method;
177int ev_init (int methods); /* returns ev_method */
178int ev_version_major (void); 326int ev_version_major (void);
179int ev_version_minor (void); 327int ev_version_minor (void);
180 328
181/* these three calls are suitable for plugging into pthread_atfork */ 329unsigned int ev_supported_backends (void);
182void ev_fork_prepare (void); 330unsigned int ev_recommended_backends (void);
183void ev_fork_parent (void); 331unsigned int ev_embeddable_backends (void);
184void ev_fork_child (void);
185 332
186extern ev_tstamp ev_now; /* time w.r.t. timers and the eventloop, updated after each poll */
187ev_tstamp ev_time (void); 333ev_tstamp ev_time (void);
334
335/* Sets the allocation function to use, works like realloc.
336 * It is used to allocate and free memory.
337 * If it returns zero when memory needs to be allocated, the library might abort
338 * or take some potentially destructive action.
339 * The default is your system realloc function.
340 */
341void ev_set_allocator (void *(*cb)(void *ptr, size_t size));
342
343/* set the callback function to call on a
344 * retryable syscall error
345 * (such as failed select, poll, epoll_wait)
346 */
347void ev_set_syserr_cb (void (*cb)(const char *msg));
348
349# if EV_MULTIPLICITY
350/* the default loop is the only one that handles signals and child watchers */
351/* you can call this as often as you like */
352static struct ev_loop *
353ev_default_loop (unsigned int flags)
354{
355 extern struct ev_loop *ev_default_loop_ptr;
356 extern struct ev_loop *ev_default_loop_init (unsigned int flags);
357
358 if (!ev_default_loop_ptr)
359 ev_default_loop_init (flags);
360
361 return ev_default_loop_ptr;
362}
363
364/* create and destroy alternative loops that don't handle signals */
365struct ev_loop *ev_loop_new (unsigned int flags);
366void ev_loop_destroy (EV_P);
367void ev_loop_fork (EV_P);
368
369ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */
370
371# else
372
373int ev_default_loop (unsigned int flags); /* returns true when successful */
374
375static ev_tstamp
376ev_now (void)
377{
378 extern ev_tstamp ev_rt_now;
379
380 return ev_rt_now;
381}
382# endif
383
384void ev_default_destroy (void); /* destroy the default loop */
385/* this needs to be called after fork, to duplicate the default loop */
386/* if you create alternative loops you have to call ev_loop_fork on them */
387/* you can call it in either the parent or the child */
388/* you can actually call it at any time, anywhere :) */
389void ev_default_fork (void);
390
391unsigned int ev_backend (EV_P);
188#endif 392#endif
189 393
190#define EVLOOP_NONBLOCK 1 /* do not block/wait */ 394#define EVLOOP_NONBLOCK 1 /* do not block/wait */
191#define EVLOOP_ONESHOT 2 /* block *once* only */ 395#define EVLOOP_ONESHOT 2 /* block *once* only */
396#define EVUNLOOP_CANCEL 0 /* undo unloop */
397#define EVUNLOOP_ONE 1 /* unloop once */
398#define EVUNLOOP_ALL 2 /* unloop all loops */
399
192#if EV_PROTOTYPES 400#if EV_PROTOTYPES
193void ev_loop (int flags); 401void ev_loop (EV_P_ int flags);
194extern int ev_loop_done; /* set to 1 to break out of event loop, set to 2 to break out of all event loops */ 402void 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 */
403
404/*
405 * ref/unref can be used to add or remove a refcount on the mainloop. every watcher
406 * keeps one reference. if you have a long-runing watcher you never unregister that
407 * should not keep ev_loop from running, unref() after starting, and ref() before stopping.
408 */
409void ev_ref (EV_P);
410void ev_unref (EV_P);
195 411
196/* convinience function, wait for a single event, without registering an event watcher */ 412/* convinience function, wait for a single event, without registering an event watcher */
197/* if timeout is < 0, do wait indefinitely */ 413/* if timeout is < 0, do wait indefinitely */
198void ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); 414void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg);
199#endif 415#endif
200 416
201/* these may evaluate ev multiple times, and the other arguments at most once */ 417/* these may evaluate ev multiple times, and the other arguments at most once */
202/* either use ev_watcher_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ 418/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */
203#define ev_watcher_init(ev,cb_) do { (ev)->active = 0; (ev)->pending = 0; (ev)->cb = (cb_); } while (0) 419#define ev_init(ev,cb_) do { \
420 ((ev_watcher *)(void *)(ev))->active = \
421 ((ev_watcher *)(void *)(ev))->pending = \
422 ((ev_watcher *)(void *)(ev))->priority = 0; \
423 ev_set_cb ((ev), cb_); \
424} while (0)
204 425
205#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0) 426#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0)
206#define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) 427#define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0)
207#define ev_periodic_set(ev,at_,interval_) do { (ev)->at = (at_); (ev)->interval = (interval_); } while (0) 428#define ev_periodic_set(ev,at_,ival_,res_) do { (ev)->at = (at_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0)
208#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) 429#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)
430#define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0)
431#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); (ev)->wd = -2; } while (0)
209#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ 432#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */
210#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ 433#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */
211#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ 434#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */
212#define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0) 435#define ev_embed_set(ev,loop_) do { (ev)->loop = (loop_); } while (0)
436#define ev_fork_set(ev) /* nop, yes, this is a serious in-joke */
213 437
214#define ev_io_init(ev,cb,fd,events) do { ev_watcher_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) 438#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)
215#define ev_timer_init(ev,cb,after,repeat) do { ev_watcher_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) 439#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)
216#define ev_periodic_init(ev,cb,at,interval) do { ev_watcher_init ((ev), (cb)); ev_periodic_set ((ev),(at),(interval)); } while (0) 440#define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0)
217#define ev_signal_init(ev,cb,signum) do { ev_watcher_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) 441#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)
218#define ev_idle_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)
219#define ev_prepare_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)
220#define ev_check_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_check_set ((ev)); } while (0)
221#define ev_child_init(ev,cb,pid) do { ev_watcher_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0) 442#define ev_child_init(ev,cb,pid) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0)
443#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_path_set ((ev),(path),(interval)); } while (0)
444#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)
445#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)
446#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)
447#define ev_embed_init(ev,cb,loop) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(loop)); } while (0)
448#define ev_fork_init(ev,cb) do { ev_init ((ev), (cb)); ev_fork_set ((ev)); } while (0)
222 449
450#define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */
223#define ev_is_active(ev) (0 + (ev)->active) /* true when the watcher has been started */ 451#define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */
452
453#define ev_priority(ev) ((ev_watcher *)(void *)(ev))->priority /* rw */
454#define ev_cb(ev) (ev)->cb /* rw */
455#define ev_set_priority(ev,pri) ev_priority (ev) = (pri)
456
457#ifndef ev_set_cb
458# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)
459#endif
224 460
225/* stopping (enabling, adding) a watcher does nothing if it is already running */ 461/* stopping (enabling, adding) a watcher does nothing if it is already running */
226/* stopping (disabling, deleting) a watcher does nothing unless its already running */ 462/* stopping (disabling, deleting) a watcher does nothing unless its already running */
227#if EV_PROTOTYPES 463#if EV_PROTOTYPES
464
465/* feeds an event into a watcher as if the event actually occured */
466/* accepts any ev_watcher type */
467void ev_feed_event (EV_P_ void *w, int revents);
468void ev_feed_fd_event (EV_P_ int fd, int revents);
469void ev_feed_signal_event (EV_P_ int signum);
470
228void ev_io_start (struct ev_io *w); 471void ev_io_start (EV_P_ ev_io *w);
229void ev_io_stop (struct ev_io *w); 472void ev_io_stop (EV_P_ ev_io *w);
230 473
231void ev_timer_start (struct ev_timer *w); 474void ev_timer_start (EV_P_ ev_timer *w);
232void ev_timer_stop (struct ev_timer *w); 475void ev_timer_stop (EV_P_ ev_timer *w);
233void ev_timer_again (struct ev_timer *w); /* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */ 476/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */
477void ev_timer_again (EV_P_ ev_timer *w);
234 478
479#if EV_PERIODIC_ENABLE
235void ev_periodic_start (struct ev_periodic *w); 480void ev_periodic_start (EV_P_ ev_periodic *w);
236void ev_periodic_stop (struct ev_periodic *w); 481void ev_periodic_stop (EV_P_ ev_periodic *w);
482void ev_periodic_again (EV_P_ ev_periodic *w);
483#endif
237 484
485/* only supported in the default loop */
238void ev_signal_start (struct ev_signal *w); 486void ev_signal_start (EV_P_ ev_signal *w);
239void ev_signal_stop (struct ev_signal *w); 487void ev_signal_stop (EV_P_ ev_signal *w);
240 488
489/* only supported in the default loop */
490void ev_child_start (EV_P_ ev_child *w);
491void ev_child_stop (EV_P_ ev_child *w);
492
493# if EV_STAT_ENABLE
494void ev_stat_start (EV_P_ ev_stat *w);
495void ev_stat_stop (EV_P_ ev_stat *w);
496void ev_stat_stat (EV_P_ ev_stat *w);
497# endif
498
241void ev_idle_start (struct ev_idle *w); 499void ev_idle_start (EV_P_ ev_idle *w);
242void ev_idle_stop (struct ev_idle *w); 500void ev_idle_stop (EV_P_ ev_idle *w);
243 501
244void ev_prepare_start (struct ev_prepare *w); 502void ev_prepare_start (EV_P_ ev_prepare *w);
245void ev_prepare_stop (struct ev_prepare *w); 503void ev_prepare_stop (EV_P_ ev_prepare *w);
246 504
247void ev_check_start (struct ev_check *w); 505void ev_check_start (EV_P_ ev_check *w);
248void ev_check_stop (struct ev_check *w); 506void ev_check_stop (EV_P_ ev_check *w);
249 507
250void ev_child_start (struct ev_child *w); 508# if EV_FORK_ENABLE
251void ev_child_stop (struct ev_child *w); 509void ev_fork_start (EV_P_ ev_fork *w);
510void ev_fork_stop (EV_P_ ev_fork *w);
511# endif
512
513# if EV_EMBED_ENABLE
514/* only supported when loop to be embedded is in fact embeddable */
515void ev_embed_start (EV_P_ ev_embed *w);
516void ev_embed_stop (EV_P_ ev_embed *w);
517void ev_embed_sweep (EV_P_ ev_embed *w);
518# endif
519
252#endif 520#endif
253 521
254#ifdef __cplusplus 522#ifdef __cplusplus
255} 523}
256#endif 524#endif

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