backend/wayland: handle WL_EVENT_WRITABLE for Wayland socket
We need to flush when the connection is writable again. This is important in
case the write buffer becomes full. This is also what Weston does [1].
[1]:
@@ -27,7 +27,6 @@ struct wlr_wl_backend *get_wl_backend_from_backend(struct wlr_backend *backend)
static int dispatch_events(int fd, uint32_t mask, void *data) {
struct wlr_wl_backend *wl = data;
- int count = 0;
if ((mask & WL_EVENT_HANGUP) || (mask & WL_EVENT_ERROR)) {
wl_display_terminate(wl->local_display);
@@ -35,15 +34,21 @@ static int dispatch_events(int fd, uint32_t mask, void *data) {
}
if (mask & WL_EVENT_READABLE) {
- count = wl_display_dispatch(wl->remote_display);
+ return wl_display_dispatch(wl->remote_display);
}
- if (mask == 0) {
- count = wl_display_dispatch_pending(wl->remote_display);
+ if (mask & WL_EVENT_WRITABLE) {
wl_display_flush(wl->remote_display);
+ return 0;
}
+ if (mask == 0) {
+ int count = wl_display_dispatch_pending(wl->remote_display);
+ wl_display_flush(wl->remote_display);
return count;
}
+ return 0;
+}
+
static void xdg_shell_handle_ping(void *data, struct zxdg_shell_v6 *shell,
uint32_t serial) {
zxdg_shell_v6_pong(shell, serial);
