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Merge branch 'xwm-immediate-write' into 'master'

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xwayland: try flushing immediately in xwm_schedule_flush()

See merge request wlroots/wlroots!5254
This commit is contained in:
Simon Ser 2026-02-03 23:16:06 +00:00
commit ee385769fb
1 changed files with 16 additions and 0 deletions
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16
xwayland/xwm.c
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@ -1,5 +1,6 @@
#include <assert.h>
#include <drm_fourcc.h>
#include <poll.h>
#include <stdlib.h>
#include <unistd.h>
#include <wlr/types/wlr_buffer.h>
@ -2881,5 +2882,20 @@ xcb_connection_t *wlr_xwayland_get_xwm_connection(
}
void xwm_schedule_flush(struct wlr_xwm *xwm) {
struct pollfd pollfd = {
.fd = xcb_get_file_descriptor(xwm->xcb_conn),
.events = POLLOUT,
};
if (poll(&pollfd, 1, 0) < 0) {
wlr_log(WLR_ERROR, "poll() failed");
return;
}
// If we can write immediately, do so
if (pollfd.revents & POLLOUT) {
xcb_flush(xwm->xcb_conn);
return;
}
wl_event_source_fd_update(xwm->event_source, WL_EVENT_READABLE | WL_EVENT_WRITABLE);
}