Miroirs/sway-patched-tray-menu
1
0
Fork 0
mirror of https://github.com/NickHu/sway synced 2024-12-27 21:58:11 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions

swayidle: fix busy loop on writable FD

Browse source 
The wl_event_source_fd_update docs say:

> File descriptors are usually writable to begin with, so they do not need to
> be polled for writable until a write actually fails. When a write fails,
> the event mask can be changed to poll for readable and writable, delivering
> a dispatch callback when it is possible to write more. Once all data has
> been written, the mask can be changed to poll only for readable to avoid
> busy-looping on dispatch.

So we should only poll for WL_EVENT_WRITABLE if a write fails. I'm not yet sure
how to do this properly and Weston doesn't do it, so in the meantime I'll just
fix the busy loop. I'll ask them too.

Fixes https://github.com/swaywm/sway/issues/3190
This commit is contained in:
emersion 2018-11-25 18:10:01 +01:00
parent 91bbb2a7dd
commit 814dc1dfe5
No known key found for this signature in database
GPG key ID: 0FDE7BE0E88F5E48
1 changed files with 4 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

7
swayidle/main.c
View file

@ -192,8 +192,7 @@ static void setup_sleep_listener(void) {
acquire_sleep_lock();
struct wl_event_source *source = wl_event_loop_add_fd(state.event_loop,
sd_bus_get_fd(bus), WL_EVENT_READABLE | WL_EVENT_WRITABLE,
dbus_event, bus);
sd_bus_get_fd(bus), WL_EVENT_READABLE, dbus_event, bus);
wl_event_source_check(source);
}
#endif
@ -401,10 +400,12 @@ static int display_event(int fd, uint32_t mask, void *data) {
count = wl_display_dispatch_pending(state.display);
wl_display_flush(state.display);
}
if (count < 0) {
wlr_log_errno(WLR_ERROR, "wl_display_dispatch failed, exiting");
sway_terminate(0);
}
return count;
}
@ -462,7 +463,7 @@ int main(int argc, char *argv[]) {
wl_display_roundtrip(state.display);
struct wl_event_source *source = wl_event_loop_add_fd(state.event_loop,
wl_display_get_fd(state.display), WL_EVENT_READABLE | WL_EVENT_WRITABLE,
wl_display_get_fd(state.display), WL_EVENT_READABLE,
display_event, NULL);
wl_event_source_check(source);