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Diffstat (limited to 'xorg-server/Xext/sync.c')
-rw-r--r--xorg-server/Xext/sync.c43
1 files changed, 40 insertions, 3 deletions
diff --git a/xorg-server/Xext/sync.c b/xorg-server/Xext/sync.c
index b2ee92e37..a04c38388 100644
--- a/xorg-server/Xext/sync.c
+++ b/xorg-server/Xext/sync.c
@@ -141,7 +141,7 @@ SyncCheckWarnIsCounter(const SyncObject * pSync, const char *warning)
* interested in the counter. The two functions below are used to
* delete and add triggers on this list.
*/
-static void
+void
SyncDeleteTriggerFromSyncObject(SyncTrigger * pTrigger)
{
SyncTriggerList *pCur;
@@ -184,7 +184,7 @@ SyncDeleteTriggerFromSyncObject(SyncTrigger * pTrigger)
}
}
-static int
+int
SyncAddTriggerToSyncObject(SyncTrigger * pTrigger)
{
SyncTriggerList *pCur;
@@ -916,6 +916,34 @@ SyncCreate(ClientPtr client, XID id, unsigned char type)
return pSync;
}
+int
+SyncCreateFenceFromFD(ClientPtr client, DrawablePtr pDraw, XID id, int fd, BOOL initially_triggered)
+{
+ SyncFence *pFence;
+ int status;
+
+ pFence = (SyncFence *) SyncCreate(client, id, SYNC_FENCE);
+ if (!pFence)
+ return BadAlloc;
+
+ status = miSyncInitFenceFromFD(pDraw, pFence, fd, initially_triggered);
+ if (status != Success) {
+ miSyncDestroyFence(pFence);
+ return status;
+ }
+
+ if (!AddResource(id, RTFence, (pointer) pFence))
+ return BadAlloc;
+
+ return Success;
+}
+
+int
+SyncFDFromFence(ClientPtr client, DrawablePtr pDraw, SyncFence *pFence)
+{
+ return miSyncFDFromFence(pDraw, pFence);
+}
+
static SyncCounter *
SyncCreateCounter(ClientPtr client, XSyncCounter id, CARD64 initialvalue)
{
@@ -2654,7 +2682,16 @@ IdleTimeBlockHandler(pointer pCounter, struct timeval **wt, pointer LastSelectMa
IdleTimeQueryValue(counter, &idle);
counter->value = idle; /* push, so CheckTrigger works */
- if (less && XSyncValueLessOrEqual(idle, *less)) {
+ /**
+ * There's an indefinite amount of time between ProcessInputEvents()
+ * where the idle time is reset and the time we actually get here. idle
+ * may be past the lower bracket if we dawdled with the events, so
+ * check for whether we did reset and bomb out of select immediately.
+ */
+ if (less && XSyncValueGreaterThan(idle, *less) &&
+ LastEventTimeWasReset(priv->deviceid)) {
+ AdjustWaitForDelay(wt, 0);
+ } else if (less && XSyncValueLessOrEqual(idle, *less)) {
/*
* We've been idle for less than the threshold value, and someone
* wants to know about that, but now we need to know whether they