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author | Ryan Dwyer <ryandwyer1@gmail.com> | 2018-10-13 16:04:37 +1000 |
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committer | Ryan Dwyer <ryandwyer1@gmail.com> | 2018-10-15 00:26:27 +1000 |
commit | 4056c09e13c1aeead6dd4085fc7e263a17a0b195 (patch) | |
tree | a3413f2a5717968e370d68521b689580d5adc5a0 /include/loop.h | |
parent | Document `border csd` (diff) | |
download | sway-4056c09e13c1aeead6dd4085fc7e263a17a0b195.tar.gz sway-4056c09e13c1aeead6dd4085fc7e263a17a0b195.tar.zst sway-4056c09e13c1aeead6dd4085fc7e263a17a0b195.zip |
Move swaybar's event loop to common directory and refactor
* The loop functions are now prefixed with `loop_`.
* It is now easy to add timers to the loop.
* Timers are implemented using pollfd and timerfd, rather than manually
checking them when any other event happens to arrive.
Diffstat (limited to 'include/loop.h')
-rw-r--r-- | include/loop.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/include/loop.h b/include/loop.h new file mode 100644 index 00000000..7c151785 --- /dev/null +++ b/include/loop.h | |||
@@ -0,0 +1,47 @@ | |||
1 | #ifndef _SWAY_LOOP_H | ||
2 | #define _SWAY_LOOP_H | ||
3 | #include <stdbool.h> | ||
4 | |||
5 | /** | ||
6 | * This is an event loop system designed for sway clients, not sway itself. | ||
7 | * | ||
8 | * It uses pollfds to block on multiple file descriptors at once, and provides | ||
9 | * an easy way to set timers. Typically the Wayland display's fd will be one of | ||
10 | * the fds in the loop. | ||
11 | */ | ||
12 | |||
13 | struct loop; | ||
14 | |||
15 | /** | ||
16 | * Create an event loop. | ||
17 | */ | ||
18 | struct loop *loop_create(void); | ||
19 | |||
20 | /** | ||
21 | * Destroy the event loop (eg. on program termination). | ||
22 | */ | ||
23 | void loop_destroy(struct loop *loop); | ||
24 | |||
25 | /** | ||
26 | * Poll the event loop. This will block until one of the fds has data. | ||
27 | */ | ||
28 | void loop_poll(struct loop *loop); | ||
29 | |||
30 | /** | ||
31 | * Add an fd to the loop. | ||
32 | */ | ||
33 | struct loop_event *loop_add_fd(struct loop *loop, int fd, short mask, | ||
34 | void (*func)(int fd, short mask, void *data), void *data); | ||
35 | |||
36 | /** | ||
37 | * Add a timer to the loop. | ||
38 | */ | ||
39 | struct loop_event *loop_add_timer(struct loop *loop, int ms, | ||
40 | void (*callback)(int fd, short mask, void *data), void *data); | ||
41 | |||
42 | /** | ||
43 | * Remove an event from the loop. | ||
44 | */ | ||
45 | bool loop_remove_event(struct loop *loop, struct loop_event *event); | ||
46 | |||
47 | #endif | ||