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When no screens are found, don’t hog the CPU. Also, wait longer for screens (10 seconds).

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Instead of just going on, i3 will exit cleanly now, putting an
appropriate message into the logfile.
This commit is contained in:
Michael Stapelberg 2009-12-07 16:31:49 +01:00
parent 13231e13ab
commit 1a53cc067b
1 changed files with 9 additions and 1 deletions
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10
src/xinerama.c
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@ -188,7 +188,7 @@ static void query_screens(xcb_connection_t *conn, struct screens_head *screenlis
* which the X server does not return any screens, such as when rotating * which the X server does not return any screens, such as when rotating
* screens), but not longer than 5 seconds (strictly speaking, only four * screens), but not longer than 5 seconds (strictly speaking, only four
* seconds of trying are guaranteed due to the 1-second-resolution) */ * seconds of trying are guaranteed due to the 1-second-resolution) */
while ((time(NULL) - before_trying) < 5) { while ((time(NULL) - before_trying) < 10) {
reply = xcb_xinerama_query_screens_reply(conn, xcb_xinerama_query_screens_unchecked(conn), NULL); reply = xcb_xinerama_query_screens_reply(conn, xcb_xinerama_query_screens_unchecked(conn), NULL);
if (!reply) { if (!reply) {
LOG("Couldn't get Xinerama screens\n"); LOG("Couldn't get Xinerama screens\n");
@ -227,11 +227,19 @@ static void query_screens(xcb_connection_t *conn, struct screens_head *screenlis
if (num_screens == 0) { if (num_screens == 0) {
LOG("No screens found. This is weird. Trying again...\n"); LOG("No screens found. This is weird. Trying again...\n");
/* Give the scheduler a chance to do something else
* and don’t hog the CPU */
usleep(250);
continue; continue;
} }
break; break;
} }
if (num_screens == 0) {
LOG("No screens found for 10 seconds. Please fix your setup. i3 will exit now.\n");
exit(0);
}
} }
/* /*