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IDLETIME: Fix edge-case in IdleTimeBlockHandler 

Ensure that if we're called exactly on the threshold of a
NegativeTransition trigger that we reshedule to pick up
an idle time over the threshold.

Signed-off-by: Christopher James Halse Rogers <christopher.halse.rogers@canonical.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
This commit is contained in:
Christopher James Halse Rogers 2010-12-06 11:24:01 +11:00 committed by Keith Packard
parent b55bf24858
commit a2e67a6412
1 changed files with 8 additions and 0 deletions
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8
Xext/sync.c
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@ -2793,6 +2793,14 @@ IdleTimeBlockHandler(pointer env, struct timeval **wt, pointer LastSelectMask)
break; break;
} }
} }
/*
* We've been called exactly on the idle time, but we have a
* NegativeTransition trigger which requires a transition from an
* idle time greater than this. Schedule a wakeup for the next
* millisecond so we won't miss a transition.
*/
if (XSyncValueEqual (idle, *pIdleTimeValueLess))
AdjustWaitForDelay(wt, 1);
} }
else if (pIdleTimeValueGreater) else if (pIdleTimeValueGreater)
{ {