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Comparing libev/ev.h (file contents):
Revision 1.28 by root, Sat Nov 3 22:10:39 2007 UTC vs.
Revision 1.69 by root, Mon Nov 26 19:49:36 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
… …
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#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_EMBED_ENABLE
60# define EV_EMBED_ENABLE 1
61#endif
62
63/*****************************************************************************/
64
65#if EV_STAT_ENABLE
66# include <sys/stat.h>
67#endif
68
47/* support multiple event loops? */ 69/* support multiple event loops? */
48#ifdef EV_MULTIPLICITY 70#if EV_MULTIPLICITY
49struct ev_loop; 71struct ev_loop;
50# define EV_P struct ev_loop *loop 72# define EV_P struct ev_loop *loop
51# define EV_P_ EV_P, 73# define EV_P_ EV_P,
52# define EV_A loop 74# define EV_A loop
53# define EV_A_ EV_A, 75# define EV_A_ EV_A,
76# define EV_DEFAULT_A ev_default_loop (0)
77# define EV_DEFAULT_A_ EV_DEFAULT_A,
54#else 78#else
55# define EV_P void 79# define EV_P void
56# define EV_P_ 80# define EV_P_
57# define EV_A 81# define EV_A
58# define EV_A_ 82# define EV_A_
83# define EV_DEFAULT_A
84# define EV_DEFAULT_A_
59 85
86# undef EV_EMBED_ENABLE
60#endif 87#endif
61 88
62/* eventmask, revents, events... */ 89/* eventmask, revents, events... */
63#define EV_UNDEF -1 /* guaranteed to be invalid */ 90#define EV_UNDEF -1L /* guaranteed to be invalid */
64#define EV_NONE 0x00 91#define EV_NONE 0x00L /* no events */
65#define EV_READ 0x01 92#define EV_READ 0x01L /* ev_io detected read will not block */
66#define EV_WRITE 0x02 93#define EV_WRITE 0x02L /* ev_io detected write will not block */
67#define EV_TIMEOUT 0x000100 94#define EV_TIMEOUT 0x00000100L /* timer timed out */
68#define EV_PERIODIC 0x000200 95#define EV_PERIODIC 0x00000200L /* periodic timer timed out */
69#define EV_SIGNAL 0x000400 96#define EV_SIGNAL 0x00000400L /* signal was received */
70#define EV_IDLE 0x000800 97#define EV_IDLE 0x00000800L /* event loop is idling */
71#define EV_CHECK 0x001000 98#define EV_PREPARE 0x00001000L /* event loop about to poll */
72#define EV_PREPARE 0x002000 99#define EV_CHECK 0x00002000L /* event loop finished poll */
73#define EV_CHILD 0x004000 100#define EV_CHILD 0x00004000L /* child/pid had status change */
101#define EV_EMBED 0x00008000L /* embedded event loop needs sweep */
102#define EV_STAT 0x00010000L /* stat data changed */
74#define EV_ERROR 0x800000 /* sent when an error occurs */ 103#define EV_ERROR 0x80000000L /* sent when an error occurs */
75 104
76/* can be used to add custom fields to all watchers */ 105/* can be used to add custom fields to all watchers, while losing binary compatibility */
77#ifndef EV_COMMON 106#ifndef EV_COMMON
78# define EV_COMMON void *data 107# define EV_COMMON void *data;
79#endif 108#endif
80#ifndef EV_PROTOTYPES 109#ifndef EV_PROTOTYPES
81# define EV_PROTOTYPES 1 110# define EV_PROTOTYPES 1
82#endif 111#endif
83 112
84#define EV_VERSION_MAJOR 1 113#define EV_VERSION_MAJOR 1
85#define EV_VERSION_MINOR 1 114#define EV_VERSION_MINOR 1
115
116#ifndef EV_CB_DECLARE
117# define EV_CB_DECLARE(type) void (*cb)(EV_P_ struct type *w, int revents);
118#endif
119#ifndef EV_CB_INVOKE
120# define EV_CB_INVOKE(watcher,revents) (watcher)->cb (EV_A_ (watcher), (revents))
121#endif
86 122
87/* 123/*
88 * struct member types: 124 * struct member types:
89 * private: you can look at them, but not change them, and they might not mean anything to you. 125 * private: you can look at them, but not change them, and they might not mean anything to you.
90 * ro: can be read anytime, but only changed when the watcher isn't active 126 * ro: can be read anytime, but only changed when the watcher isn't active
… …
93 129
94/* shared by all watchers */ 130/* shared by all watchers */
95#define EV_WATCHER(type) \ 131#define EV_WATCHER(type) \
96 int active; /* private */ \ 132 int active; /* private */ \
97 int pending; /* private */ \ 133 int pending; /* private */ \
98 int priority; /* ro */ \ 134 int priority; /* private */ \
99 EV_COMMON; /* rw */ \ 135 EV_COMMON /* rw */ \
100 void (*cb)(EV_P_ struct type *, int revents); /* rw */ /* gets invoked with an eventmask */ 136 EV_CB_DECLARE (type) /* private */
101 137
102#define EV_WATCHER_LIST(type) \ 138#define EV_WATCHER_LIST(type) \
103 EV_WATCHER (type); \ 139 EV_WATCHER (type) \
104 struct ev_watcher_list *next /* private */ 140 struct ev_watcher_list *next; /* private */
105 141
106#define EV_WATCHER_TIME(type) \ 142#define EV_WATCHER_TIME(type) \
107 EV_WATCHER (type); \ 143 EV_WATCHER (type) \
108 ev_tstamp at /* private */ 144 ev_tstamp at; /* private */
109 145
110/* base class, nothing to see here unless you subclass */ 146/* base class, nothing to see here unless you subclass */
111struct ev_watcher { 147typedef struct ev_watcher
148{
112 EV_WATCHER (ev_watcher); 149 EV_WATCHER (ev_watcher)
113}; 150} ev_watcher;
114 151
115/* base class, nothing to see here unless you subclass */ 152/* base class, nothing to see here unless you subclass */
116struct ev_watcher_list { 153typedef struct ev_watcher_list
154{
117 EV_WATCHER_LIST (ev_watcher_list); 155 EV_WATCHER_LIST (ev_watcher_list)
118}; 156} ev_watcher_list;
119 157
120/* base class, nothing to see here unless you subclass */ 158/* base class, nothing to see here unless you subclass */
121struct ev_watcher_time { 159typedef struct ev_watcher_time
160{
122 EV_WATCHER_TIME (ev_watcher_time); 161 EV_WATCHER_TIME (ev_watcher_time)
123}; 162} ev_watcher_time;
124 163
125/* invoked after a specific time, repeatable (based on monotonic clock) */ 164/* invoked after a specific time, repeatable (based on monotonic clock) */
126/* revent EV_TIMEOUT */ 165/* revent EV_TIMEOUT */
127struct ev_timer 166typedef struct ev_timer
128{ 167{
129 EV_WATCHER_TIME (ev_timer); 168 EV_WATCHER_TIME (ev_timer)
130 169
131 ev_tstamp repeat; /* rw */ 170 ev_tstamp repeat; /* rw */
132}; 171} ev_timer;
133 172
134/* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */ 173/* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */
135/* revent EV_PERIODIC */ 174/* revent EV_PERIODIC */
136struct ev_periodic 175typedef struct ev_periodic
137{ 176{
138 EV_WATCHER_TIME (ev_periodic); 177 EV_WATCHER_TIME (ev_periodic)
139 178
140 ev_tstamp interval; /* rw */ 179 ev_tstamp interval; /* rw */
141}; 180 ev_tstamp (*reschedule_cb)(struct ev_periodic *w, ev_tstamp now); /* rw */
181} ev_periodic;
142 182
143/* invoked when fd is either EV_READable or EV_WRITEable */ 183/* invoked when fd is either EV_READable or EV_WRITEable */
144/* revent EV_READ, EV_WRITE */ 184/* revent EV_READ, EV_WRITE */
145struct ev_io 185typedef struct ev_io
146{ 186{
147 EV_WATCHER_LIST (ev_io); 187 EV_WATCHER_LIST (ev_io)
148 188
149 int fd; /* ro */ 189 int fd; /* ro */
150 int events; /* ro */ 190 int events; /* ro */
151}; 191} ev_io;
152 192
153/* invoked when the given signal has been received */ 193/* invoked when the given signal has been received */
154/* revent EV_SIGNAL */ 194/* revent EV_SIGNAL */
155struct ev_signal 195typedef struct ev_signal
156{ 196{
157 EV_WATCHER_LIST (ev_signal); 197 EV_WATCHER_LIST (ev_signal)
158 198
159 int signum; /* ro */ 199 int signum; /* ro */
160}; 200} ev_signal;
161 201
162/* invoked when the nothing else needs to be done, keeps the process from blocking */ 202/* invoked when the nothing else needs to be done, keeps the process from blocking */
163/* revent EV_IDLE */ 203/* revent EV_IDLE */
164struct ev_idle 204typedef struct ev_idle
165{ 205{
166 EV_WATCHER (ev_idle); 206 EV_WATCHER (ev_idle)
167}; 207} ev_idle;
168 208
169/* invoked for each run of the mainloop, just before the blocking call */ 209/* invoked for each run of the mainloop, just before the blocking call */
170/* you can still change events in any way you like */ 210/* you can still change events in any way you like */
171/* revent EV_PREPARE */ 211/* revent EV_PREPARE */
172struct ev_prepare 212typedef struct ev_prepare
173{ 213{
174 EV_WATCHER (ev_prepare); 214 EV_WATCHER (ev_prepare)
175}; 215} ev_prepare;
176 216
177/* invoked for each run of the mainloop, just after the blocking call */ 217/* invoked for each run of the mainloop, just after the blocking call */
178/* revent EV_CHECK */ 218/* revent EV_CHECK */
179struct ev_check 219typedef struct ev_check
180{ 220{
181 EV_WATCHER (ev_check); 221 EV_WATCHER (ev_check)
182}; 222} ev_check;
183 223
184/* invoked when sigchld is received and waitpid indicates the givne pid */ 224/* invoked when sigchld is received and waitpid indicates the given pid */
185/* revent EV_CHILD */ 225/* revent EV_CHILD */
186/* does not support priorities */ 226/* does not support priorities */
187struct ev_child 227typedef struct ev_child
188{ 228{
189 EV_WATCHER_LIST (ev_child); 229 EV_WATCHER_LIST (ev_child)
190 230
191 int pid; /* ro */ 231 int pid; /* ro */
192 int rpid; /* rw, holds the received pid */ 232 int rpid; /* rw, holds the received pid */
193 int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */ 233 int rstatus; /* rw, holds the exit status, use the macros from sys/wait.h */
234} ev_child;
235
236#if EV_EMBED_ENABLE
237/* used to embed an event loop inside another */
238/* the callback gets invoked when the event loop has handled events, and can be 0 */
239typedef struct ev_embed
240{
241 EV_WATCHER (ev_embed)
242
243 ev_io io; /* private */
244 struct ev_loop *loop; /* ro */
245} ev_embed;
246#endif
247
248#if EV_STAT_ENABLE
249/* st_nlink = 0 means missing file or other error */
250typedef struct stat ev_statdata;
251
252/* invoked each time the stat data changes for a given path */
253/* revent EV_STAT */
254typedef struct ev_stat
255{
256 EV_WATCHER (ev_stat)
257
258 ev_timer timer; /* private */
259 ev_tstamp interval; /* rw */
260 const char *path; /* ro */
261 ev_statdata prev; /* ro */
262 ev_statdata attr; /* ro */
263} ev_stat;
264#endif
265
266/* the presence of this union forces similar struct layout */
267union ev_any_watcher
268{
269 struct ev_watcher w;
270 struct ev_watcher_list wl;
271
272 struct ev_io io;
273 struct ev_timer timer;
274 struct ev_periodic periodic;
275 struct ev_idle idle;
276 struct ev_prepare prepare;
277 struct ev_check check;
278 struct ev_signal signal;
279 struct ev_child child;
280#if EV_EMBED_ENABLE
281 struct ev_embed embed;
282#endif
283#if EV_STAT_ENABLE
284 struct ev_stat stat;
285#endif
194}; 286};
195 287
196#define EVMETHOD_AUTO 0 /* consults environment */ 288/* bits for ev_default_loop and ev_loop_new */
197#define EVMETHOD_SELECT 1 289/* the default */
198#define EVMETHOD_POLL 2 290#define EVFLAG_AUTO 0x00000000UL /* not quite a mask */
199#define EVMETHOD_EPOLL 4 291/* flag bits */
200#define EVMETHOD_KQUEUE 8 292#define EVFLAG_NOENV 0x01000000UL /* do NOT consult environment */
201#define EVMETHOD_DEVPOLL 16 /* NYI */ 293/* method bits to be ored together */
202#define EVMETHOD_PORT 32 /* NYI */ 294#define EVBACKEND_SELECT 0x00000001UL /* about anywhere */
203#define EVMETHOD_ANY ~0 /* any method, do not consult env */ 295#define EVBACKEND_POLL 0x00000002UL /* !win */
296#define EVBACKEND_EPOLL 0x00000004UL /* linux */
297#define EVBACKEND_KQUEUE 0x00000008UL /* bsd */
298#define EVBACKEND_DEVPOLL 0x00000010UL /* solaris 8 */ /* NYI */
299#define EVBACKEND_PORT 0x00000020UL /* solaris 10 */
300
204#if EV_PROTOTYPES 301#if EV_PROTOTYPES
205int ev_method (EV_P);
206int ev_init (EV_P_ int methods); /* returns ev_method */
207int ev_version_major (void); 302int ev_version_major (void);
208int ev_version_minor (void); 303int ev_version_minor (void);
209 304
210/* these three calls are suitable for plugging into pthread_atfork */ 305unsigned int ev_supported_backends (void);
211void ev_fork_prepare (void); 306unsigned int ev_recommended_backends (void);
212void ev_fork_parent (void); 307unsigned int ev_embeddable_backends (void);
213void ev_fork_child (void);
214 308
215ev_tstamp ev_time (void); 309ev_tstamp ev_time (void);
310
311/* Sets the allocation function to use, works like realloc.
312 * It is used to allocate and free memory.
313 * If it returns zero when memory needs to be allocated, the library might abort
314 * or take some potentially destructive action.
315 * The default is your system realloc function.
316 */
317void ev_set_allocator (void *(*cb)(void *ptr, long size));
318
319/* set the callback function to call on a
320 * retryable syscall error
321 * (such as failed select, poll, epoll_wait)
322 */
323void ev_set_syserr_cb (void (*cb)(const char *msg));
324
325# if EV_MULTIPLICITY
326/* the default loop is the only one that handles signals and child watchers */
327/* you can call this as often as you like */
328static struct ev_loop *
329ev_default_loop (unsigned int flags)
330{
331 extern struct ev_loop *ev_default_loop_ptr;
332 extern struct ev_loop *ev_default_loop_init (unsigned int flags);
333
334 if (!ev_default_loop_ptr)
335 ev_default_loop_init (flags);
336
337 return ev_default_loop_ptr;
338}
339
340/* create and destroy alternative loops that don't handle signals */
341struct ev_loop *ev_loop_new (unsigned int flags);
342void ev_loop_destroy (EV_P);
343void ev_loop_fork (EV_P);
344
345ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */
346
347# else
348
349int ev_default_loop (unsigned int flags); /* returns true when successful */
350
351static ev_tstamp
352ev_now (void)
353{
354 extern ev_tstamp ev_rt_now;
355
356 return ev_rt_now;
357}
358# endif
359
360void ev_default_destroy (void); /* destroy the default loop */
361/* this needs to be called after fork, to duplicate the default loop */
362/* if you create alternative loops you have to call ev_loop_fork on them */
363/* you can call it in either the parent or the child */
364/* you can actually call it at any time, anywhere :) */
365void ev_default_fork (void);
366
367unsigned int ev_backend (EV_P);
216#endif 368#endif
217 369
218#define EVLOOP_NONBLOCK 1 /* do not block/wait */ 370#define EVLOOP_NONBLOCK 1 /* do not block/wait */
219#define EVLOOP_ONESHOT 2 /* block *once* only */ 371#define EVLOOP_ONESHOT 2 /* block *once* only */
372#define EVUNLOOP_CANCEL 0 /* undo unloop */
373#define EVUNLOOP_ONE 1 /* unloop once */
374#define EVUNLOOP_ALL 2 /* unloop all loops */
375
220#if EV_PROTOTYPES 376#if EV_PROTOTYPES
221void ev_loop (EV_P_ int flags); 377void ev_loop (EV_P_ int flags);
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 */ 378void 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 */
223
224ev_tstamp ev_now (EV_P); /* time w.r.t. timers and the eventloop, updated after each poll */
225 379
226/* 380/*
227 * ref/unref can be used to add or remove a refcount on the mainloop. every watcher 381 * 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 382 * 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. 383 * should not keep ev_loop from running, unref() after starting, and ref() before stopping.
… …
235/* if timeout is < 0, do wait indefinitely */ 389/* if timeout is < 0, do wait indefinitely */
236void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg); 390void ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg);
237#endif 391#endif
238 392
239/* these may evaluate ev multiple times, and the other arguments at most once */ 393/* these may evaluate ev multiple times, and the other arguments at most once */
240/* either use ev_watcher_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */ 394/* either use ev_init + ev_TYPE_set, or the ev_TYPE_init macro, below, to first initialise a watcher */
241#define ev_watcher_init(ev,cb_) do { (ev)->active = (ev)->pending = (ev)->priority = 0; (ev)->cb = (cb_); } while (0) 395#define ev_init(ev,cb_) do { \
396 ((ev_watcher *)(void *)(ev))->active = \
397 ((ev_watcher *)(void *)(ev))->pending = \
398 ((ev_watcher *)(void *)(ev))->priority = 0; \
399 ev_set_cb ((ev), cb_); \
400} while (0)
242 401
243#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0) 402#define ev_io_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0)
244#define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0) 403#define ev_timer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0)
245#define ev_periodic_set(ev,at_,interval_) do { (ev)->at = (at_); (ev)->interval = (interval_); } while (0) 404#define ev_periodic_set(ev,at_,ival_,res_) do { (ev)->at = (at_); (ev)->interval = (ival_); (ev)->reschedule_cb= (res_); } while (0)
246#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) 405#define ev_signal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)
247#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */ 406#define ev_idle_set(ev) /* nop, yes, this is a serious in-joke */
248#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */ 407#define ev_prepare_set(ev) /* nop, yes, this is a serious in-joke */
249#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */ 408#define ev_check_set(ev) /* nop, yes, this is a serious in-joke */
250#define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0) 409#define ev_child_set(ev,pid_) do { (ev)->pid = (pid_); } while (0)
410#define ev_embed_set(ev,loop_) do { (ev)->loop = (loop_); } while (0)
411#define ev_stat_set(ev,path_,interval_) do { (ev)->path = (path_); (ev)->interval = (interval_); } while (0)
251 412
252#define ev_io_init(ev,cb,fd,events) do { ev_watcher_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0) 413#define ev_io_init(ev,cb,fd,events) do { ev_init ((ev), (cb)); ev_io_set ((ev),(fd),(events)); } while (0)
253#define ev_timer_init(ev,cb,after,repeat) do { ev_watcher_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0) 414#define ev_timer_init(ev,cb,after,repeat) do { ev_init ((ev), (cb)); ev_timer_set ((ev),(after),(repeat)); } while (0)
254#define ev_periodic_init(ev,cb,at,interval) do { ev_watcher_init ((ev), (cb)); ev_periodic_set ((ev),(at),(interval)); } while (0) 415#define ev_periodic_init(ev,cb,at,ival,res) do { ev_init ((ev), (cb)); ev_periodic_set ((ev),(at),(ival),(res)); } while (0)
255#define ev_signal_init(ev,cb,signum) do { ev_watcher_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0) 416#define ev_signal_init(ev,cb,signum) do { ev_init ((ev), (cb)); ev_signal_set ((ev), (signum)); } while (0)
256#define ev_idle_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_idle_set ((ev)); } while (0) 417#define ev_idle_init(ev,cb) do { ev_init ((ev), (cb)); ev_idle_set ((ev)); } while (0)
257#define ev_prepare_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0) 418#define ev_prepare_init(ev,cb) do { ev_init ((ev), (cb)); ev_prepare_set ((ev)); } while (0)
258#define ev_check_init(ev,cb) do { ev_watcher_init ((ev), (cb)); ev_check_set ((ev)); } while (0) 419#define ev_check_init(ev,cb) do { ev_init ((ev), (cb)); ev_check_set ((ev)); } while (0)
259#define ev_child_init(ev,cb,pid) do { ev_watcher_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0) 420#define ev_child_init(ev,cb,pid) do { ev_init ((ev), (cb)); ev_child_set ((ev),(pid)); } while (0)
421#define ev_embed_init(ev,cb,loop) do { ev_init ((ev), (cb)); ev_embed_set ((ev),(loop)); } while (0)
422#define ev_stat_init(ev,cb,path,interval) do { ev_init ((ev), (cb)); ev_path_set ((ev),(path),(interval)); } while (0)
260 423
424#define ev_is_pending(ev) (0 + ((ev_watcher *)(void *)(ev))->pending) /* ro, true when watcher is waiting for callback invocation */
261#define ev_is_active(ev) (0 + (ev)->active) /* true when the watcher has been started */ 425#define ev_is_active(ev) (0 + ((ev_watcher *)(void *)(ev))->active) /* ro, true when the watcher has been started */
426
427#define ev_priority(ev) ((ev_watcher *)(void *)(ev))->priority /* rw */
428#define ev_cb(ev) (ev)->cb /* rw */
262#define ev_set_priority(ev,pri) (ev)->priority = pri 429#define ev_set_priority(ev,pri) ev_priority (ev) = (pri)
430
431#ifndef ev_set_cb
432# define ev_set_cb(ev,cb_) ev_cb (ev) = (cb_)
433#endif
263 434
264/* stopping (enabling, adding) a watcher does nothing if it is already running */ 435/* stopping (enabling, adding) a watcher does nothing if it is already running */
265/* stopping (disabling, deleting) a watcher does nothing unless its already running */ 436/* stopping (disabling, deleting) a watcher does nothing unless its already running */
266#if EV_PROTOTYPES 437#if EV_PROTOTYPES
438
439/* feeds an event into a watcher as if the event actually occured */
440/* accepts any ev_watcher type */
441void ev_feed_event (EV_P_ void *w, int revents);
442void ev_feed_fd_event (EV_P_ int fd, int revents);
443void ev_feed_signal_event (EV_P_ int signum);
444
267void ev_io_start (EV_P_ struct ev_io *w); 445void ev_io_start (EV_P_ ev_io *w);
268void ev_io_stop (EV_P_ struct ev_io *w); 446void ev_io_stop (EV_P_ ev_io *w);
269 447
270void ev_timer_start (EV_P_ struct ev_timer *w); 448void ev_timer_start (EV_P_ ev_timer *w);
271void ev_timer_stop (EV_P_ struct ev_timer *w); 449void ev_timer_stop (EV_P_ ev_timer *w);
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 */ 450/* stops if active and no repeat, restarts if active and repeating, starts if inactive and repeating */
451void ev_timer_again (EV_P_ ev_timer *w);
273 452
453#if EV_PERIODIC_ENABLE
274void ev_periodic_start (EV_P_ struct ev_periodic *w); 454void ev_periodic_start (EV_P_ ev_periodic *w);
275void ev_periodic_stop (EV_P_ struct ev_periodic *w); 455void ev_periodic_stop (EV_P_ ev_periodic *w);
456void ev_periodic_again (EV_P_ ev_periodic *w);
457#endif
276 458
277void ev_signal_start (EV_P_ struct ev_signal *w);
278void ev_signal_stop (EV_P_ struct ev_signal *w);
279
280void ev_idle_start (EV_P_ struct ev_idle *w); 459void ev_idle_start (EV_P_ ev_idle *w);
281void ev_idle_stop (EV_P_ struct ev_idle *w); 460void ev_idle_stop (EV_P_ ev_idle *w);
282 461
283void ev_prepare_start (EV_P_ struct ev_prepare *w); 462void ev_prepare_start (EV_P_ ev_prepare *w);
284void ev_prepare_stop (EV_P_ struct ev_prepare *w); 463void ev_prepare_stop (EV_P_ ev_prepare *w);
285 464
286void ev_check_start (EV_P_ struct ev_check *w); 465void ev_check_start (EV_P_ ev_check *w);
287void ev_check_stop (EV_P_ struct ev_check *w); 466void ev_check_stop (EV_P_ ev_check *w);
288 467
468/* only supported in the default loop */
469void ev_signal_start (EV_P_ ev_signal *w);
470void ev_signal_stop (EV_P_ ev_signal *w);
471
472/* only supported in the default loop */
289void ev_child_start (EV_P_ struct ev_child *w); 473void ev_child_start (EV_P_ ev_child *w);
290void ev_child_stop (EV_P_ struct ev_child *w); 474void ev_child_stop (EV_P_ ev_child *w);
475
476# if EV_EMBED_ENABLE
477/* only supported when loop to be embedded is in fact embeddable */
478void ev_embed_start (EV_P_ ev_embed *w);
479void ev_embed_stop (EV_P_ ev_embed *w);
480void ev_embed_sweep (EV_P_ ev_embed *w);
481# endif
482
483# if EV_STAT_ENABLE
484void ev_stat_start (EV_P_ ev_stat *w);
485void ev_stat_stop (EV_P_ ev_stat *w);
486void ev_stat_stat (EV_P_ ev_stat *w);
487# endif
488
291#endif 489#endif
292 490
293#ifdef __cplusplus 491#ifdef __cplusplus
294} 492}
295#endif 493#endif

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