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i3bar: Bugfix: Check if the X11 connection is unavailable

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This fixes the condition where the i3 socket for some reason did not produce an
error, but the X server exited (earlier than i3?) and the left-over i3bar
process would consume 100% CPU.

How to reproduce the problem:
1) Start ./testcases/Xdummy :8
2) Start DISPLAY=:8 i3bar -s <socket path to i3 on :0>
3) Kill the Xdummy
This commit is contained in:
Michael Stapelberg 2011-09-19 19:17:25 +01:00
parent 11ab7cf32a
commit 7064cfc2a0
1 changed files with 6 additions and 0 deletions
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6
i3bar/src/xcb.c
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@ -406,6 +406,12 @@ void xcb_prep_cb(struct ev_loop *loop, ev_prepare *watcher, int revents) {
*/ */
void xcb_chk_cb(struct ev_loop *loop, ev_check *watcher, int revents) { void xcb_chk_cb(struct ev_loop *loop, ev_check *watcher, int revents) {
xcb_generic_event_t *event; xcb_generic_event_t *event;
if (xcb_connection_has_error(xcb_connection)) {
ELOG("X11 connection was closed unexpectedly - maybe your X server terminated / crashed?\n");
exit(1);
}
while ((event = xcb_poll_for_event(xcb_connection)) == NULL) { while ((event = xcb_poll_for_event(xcb_connection)) == NULL) {
return; return;
} }