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Comparing libev/ev.h (file contents):
Revision 1.5 by root, Wed Oct 31 07:24:17 2007 UTC vs.
Revision 1.6 by root, Wed Oct 31 09:23:18 2007 UTC

… …
11#define EV_TIMEOUT 0x04 11#define EV_TIMEOUT 0x04
12#define EV_SIGNAL 0x08 12#define EV_SIGNAL 0x08
13#define EV_IDLE 0x10 13#define EV_IDLE 0x10
14#define EV_CHECK 0x20 14#define EV_CHECK 0x20
15 15
16/* can be used to add custom fields to all watchers */
17#ifndef EV_COMMON
18# define EV_COMMON void *data
19#endif
20
21/*
22 * struct member types:
23 * private: you can look at them, but not change them, and they might not mean anything to you.
24 * ro: can be read anytime, but only changed when the watcher isn't active
25 * rw: can be read and modified anytime, even when the watcher is active
26 */
27
16/* shared by all watchers */ 28/* shared by all watchers */
17#define EV_WATCHER(type) \ 29#define EV_WATCHER(type) \
18 int active; /* private */ \ 30 int active; /* private */ \
19 int pending; /* private */ \ 31 int pending; /* private */ \
20 void *data; /* rw */ \ 32 EV_COMMON; /* rw */ \
21 void (*cb)(struct type *, int revents) /* rw */ /* gets invoked with an eventmask */ 33 void (*cb)(struct type *, int revents); /* rw */ /* gets invoked with an eventmask */
22 34
23#define EV_WATCHER_LIST(type) \ 35#define EV_WATCHER_LIST(type) \
24 EV_WATCHER (type); \ 36 EV_WATCHER (type); \
25 struct type *next /* private */ 37 struct type *next /* private */
26 38
27/* invoked at a specific time or after a specific time, repeatable */ 39#define EV_WATCHER_TIME(type) \
40 EV_WATCHER (type); \
41 ev_tstamp at /* private */
42
43/* invoked after a specific time, repeatable (based on monotonic clock) */
28struct ev_timer 44struct ev_timer
29{ 45{
30 EV_WATCHER_LIST (ev_timer); 46 EV_WATCHER_TIME (ev_timer);
31 47
32 ev_tstamp at; /* private */
33 ev_tstamp repeat; /* rw */ 48 ev_tstamp repeat; /* rw */
34 unsigned char is_abs; /* ro */ 49};
50
51/* invoked at some specific time, possibly repeating at regular intervals (based on UTC) */
52struct ev_periodic
53{
54 EV_WATCHER_TIME (ev_periodic);
55
56 ev_tstamp interval; /* rw */
35}; 57};
36 58
37/* invoked when fd is either EV_READable or EV_WRITEable */ 59/* invoked when fd is either EV_READable or EV_WRITEable */
38struct ev_io 60struct ev_io
39{ 61{
… …
81#define EVLOOP_ONESHOT 2 /* block *once* only */ 103#define EVLOOP_ONESHOT 2 /* block *once* only */
82void ev_loop (int flags); 104void ev_loop (int flags);
83extern int ev_loop_done; /* set to 1 to break out of event loop */ 105extern int ev_loop_done; /* set to 1 to break out of event loop */
84 106
85/* these may evaluate ev multiple times, and the other arguments at most once */ 107/* these may evaluate ev multiple times, and the other arguments at most once */
108/* either use evw_init + evXXX_set, or the evXXX_init macro, below, to first initialise a watcher */
86#define evw_init(ev,cb_,data_) do { (ev)->active = 0; (ev)->cb = (cb_); (ev)->data = (void *)data_; } while (0) 109#define evw_init(ev,cb_) do { (ev)->active = 0; (ev)->cb = (cb_); } while (0)
87 110
88#define evio_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0) 111#define evio_set(ev,fd_,events_) do { (ev)->fd = (fd_); (ev)->events = (events_); } while (0)
89#define evtimer_set_rel(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); (ev)->is_abs = 0; } while (0) 112#define evtimer_set(ev,after_,repeat_) do { (ev)->at = (after_); (ev)->repeat = (repeat_); } while (0)
90#define evtimer_set_abs(ev,at_,repeat_) do { (ev)->at = (at_); (ev)->repeat = (repeat_); (ev)->is_abs = 1; } while (0) 113#define evperiodic_set(ev,at_,interval_) do { (ev)->at = (at_); (ev)->interval = (interval_); } while (0)
91#define evsignal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0) 114#define evsignal_set(ev,signum_) do { (ev)->signum = (signum_); } while (0)
115#define evcheck_set(ev) /* nop, yes this is a serious in-joke */
116#define evidle_set(ev) /* nop, yes this is a serious in-joke */
117
118#define evio_init(ev,cb,fd,events) do { evw_init ((ev), (cb)); evio_set ((ev),(fd),(events)); } while (0)
119#define evtimer_init(ev,cb,after,repeat) do { evw_init ((ev), (cb)); evtimer_set ((ev),(after),(repeat)); } while (0)
120#define evperiodic_init(ev,cb,at,interval) do { evw_init ((ev), (cb)); evperiodic_set ((ev),(at),(interval)); } while (0)
121#define evsignal_init(ev,cb,signum) do { evw_init ((ev), (cb)); evsignal_set ((ev), (signum)); } while (0)
122#define evcheck_init(ev,cb) do { evw_init ((ev), (cb)); evcheck_set ((ev)); } while (0)
123#define evidle_init(ev,cb) do { evw_init ((ev), (cb)); evidle_set ((ev)); } while (0)
92 124
93#define ev_is_active(ev) (0 + (ev)->active) /* true when the watcher has been started */ 125#define ev_is_active(ev) (0 + (ev)->active) /* true when the watcher has been started */
94 126
95/* stopping (enabling, adding) a watcher does nothing if it is already running */ 127/* stopping (enabling, adding) a watcher does nothing if it is already running */
96/* stopping (disabling, deleting) a watcher does nothing unless its already running */ 128/* stopping (disabling, deleting) a watcher does nothing unless its already running */
97void evio_start (struct ev_io *w); 129void evio_start (struct ev_io *w);
98void evio_stop (struct ev_io *w); 130void evio_stop (struct ev_io *w);
99 131
100void evtimer_start (struct ev_timer *w); 132void evtimer_start (struct ev_timer *w);
101void evtimer_stop (struct ev_timer *w); 133void evtimer_stop (struct ev_timer *w);
102 134
103void evsignal_start (struct ev_signal *w); 135void evperiodic_start (struct ev_periodic *w);
104void evsignal_stop (struct ev_signal *w); 136void evperiodic_stop (struct ev_periodic *w);
105 137
106void evidle_start (struct ev_idle *w); 138void evsignal_start (struct ev_signal *w);
107void evidle_stop (struct ev_idle *w); 139void evsignal_stop (struct ev_signal *w);
108 140
141void evidle_start (struct ev_idle *w);
142void evidle_stop (struct ev_idle *w);
143
109void evcheck_start (struct ev_check *w); 144void evcheck_start (struct ev_check *w);
110void evcheck_stop (struct ev_check *w); 145void evcheck_stop (struct ev_check *w);
111 146
112#endif 147#endif
113 148

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