… | |
… | |
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) */ |
28 | struct ev_timer |
44 | struct 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) */ |
|
|
52 | struct 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 */ |
38 | struct ev_io |
60 | struct ev_io |
39 | { |
61 | { |
… | |
… | |
81 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
103 | #define EVLOOP_ONESHOT 2 /* block *once* only */ |
82 | void ev_loop (int flags); |
104 | void ev_loop (int flags); |
83 | extern int ev_loop_done; /* set to 1 to break out of event loop */ |
105 | extern 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 */ |
97 | void evio_start (struct ev_io *w); |
129 | void evio_start (struct ev_io *w); |
98 | void evio_stop (struct ev_io *w); |
130 | void evio_stop (struct ev_io *w); |
99 | |
131 | |
100 | void evtimer_start (struct ev_timer *w); |
132 | void evtimer_start (struct ev_timer *w); |
101 | void evtimer_stop (struct ev_timer *w); |
133 | void evtimer_stop (struct ev_timer *w); |
102 | |
134 | |
103 | void evsignal_start (struct ev_signal *w); |
135 | void evperiodic_start (struct ev_periodic *w); |
104 | void evsignal_stop (struct ev_signal *w); |
136 | void evperiodic_stop (struct ev_periodic *w); |
105 | |
137 | |
106 | void evidle_start (struct ev_idle *w); |
138 | void evsignal_start (struct ev_signal *w); |
107 | void evidle_stop (struct ev_idle *w); |
139 | void evsignal_stop (struct ev_signal *w); |
108 | |
140 | |
|
|
141 | void evidle_start (struct ev_idle *w); |
|
|
142 | void evidle_stop (struct ev_idle *w); |
|
|
143 | |
109 | void evcheck_start (struct ev_check *w); |
144 | void evcheck_start (struct ev_check *w); |
110 | void evcheck_stop (struct ev_check *w); |
145 | void evcheck_stop (struct ev_check *w); |
111 | |
146 | |
112 | #endif |
147 | #endif |
113 | |
148 | |