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[client] fix race segfault on pointer queue unsubscribe/timeout

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This commit is contained in:
Geoffrey McRae
2022-01-26 17:20:12 +11:00
parent fb4bdaee2b
commit efa49391fc
3 changed files with 19 additions and 1 deletions
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11
client/src/core.c
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@@ -484,12 +484,23 @@ void core_handleMouseNormal(double ex, double ey)
g_cursor.realigning = true;
do
{
LG_LOCK(g_state.pointerQueueLock);
if (!g_state.pointerQueue)
{
/* the queue is nolonger valid, assume complete */
g_cursor.realigning = false;
LG_UNLOCK(g_state.pointerQueueLock);
break;
}
uint32_t hostSerial;
if (lgmpClientGetSerial(g_state.pointerQueue, &hostSerial) != LGMP_OK)
{
g_cursor.realigning = false;
LG_UNLOCK(g_state.pointerQueueLock);
return;
}
LG_UNLOCK(g_state.pointerQueueLock);
if (hostSerial >= setPosSerial)
break;