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xwayland/xwm: implement somewhat asynchronous request flushing

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Instead of calling xcb_flush() directly, wait until the FD is
writable.

Ideally we'd have a non-blocking variant instead of xcb_flush(),
but libxcb doesn't have this. Also libxcb blocks when its internal
buffer is full, but not much we can do here.
This commit is contained in:
Simon Ser 2023-08-21 12:16:24 +02:00 • committed by Kirill Primak
parent c9fe96102d
commit 6ada67da9b
6 changed files with 39 additions and 23 deletions
Download patch file Download diff file Expand all files Collapse all files

8
xwayland/selection/incoming.c
View file

@ -37,7 +37,7 @@ xwm_selection_transfer_create_incoming(struct wlr_xwm_selection *selection) {
XCB_EVENT_MASK_SUBSTRUCTURE_NOTIFY | XCB_EVENT_MASK_PROPERTY_CHANGE
}
);
xcb_flush(xwm->xcb_conn);
xwm_schedule_flush(xwm);
return transfer;
}
@ -89,7 +89,7 @@ static void xwm_notify_ready_for_next_incr_chunk(
wlr_log(WLR_DEBUG, "deleting property");
xcb_delete_property(xwm->xcb_conn, transfer->incoming_window,
xwm->atoms[WL_SELECTION]);
xcb_flush(xwm->xcb_conn);
xwm_schedule_flush(xwm);
xwm_selection_transfer_remove_event_source(transfer);
xwm_selection_transfer_destroy_property_reply(transfer);
@ -234,7 +234,7 @@ static void source_send(struct wlr_xwm_selection *selection,
xwm->atoms[WL_SELECTION],
XCB_TIME_CURRENT_TIME);
xcb_flush(xwm->xcb_conn);
xwm_schedule_flush(xwm);
fcntl(fd, F_SETFL, O_WRONLY | O_NONBLOCK);
transfer->wl_client_fd = fd;
@ -533,7 +533,7 @@ int xwm_handle_xfixes_selection_notify(struct wlr_xwm *xwm,
xwm->atoms[WL_SELECTION],
event->timestamp
);
xcb_flush(xwm->xcb_conn);
xwm_schedule_flush(xwm);
return 1;
}