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Fix a bug in KiTimerMtx.Acquired (#1675)

This commit is contained in:
ergo720 2019-07-20 00:36:53 +02:00 committed by PatrickvL
parent 0c334de398
commit 7f70c88917
1 changed files with 3 additions and 3 deletions
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6
src/core/kernel/exports/EmuKrnlKi.cpp
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@ -105,7 +105,7 @@ xboxkrnl::VOID xboxkrnl::KiInitSystem()
InitializeListHead(&KiWaitInListHead);
KiTimerMtx.Acquired = false;
KiTimerMtx.Acquired = 0;
KeInitializeDpc(&KiTimerExpireDpc, KiTimerExpiration, NULL);
for (i = 0; i < TIMER_TABLE_SIZE; i++) {
InitializeListHead(&KiTimerTableListHead[i].Entry);
@ -163,14 +163,14 @@ xboxkrnl::VOID xboxkrnl::KiClockIsr
// Because this function must be fast to continuously update the kernel clocks, if somebody else is currently
// holding the lock, we won't wait and instead skip the check of the timers for this cycle
if (KiTimerMtx.Mtx.try_lock()) {
KiTimerMtx.Acquired = true;
KiTimerMtx.Acquired++;
// Check if a timer has expired
Hand = OldKeTickCount & (TIMER_TABLE_SIZE - 1);
if (KiTimerTableListHead[Hand].Entry.Flink != &KiTimerTableListHead[Hand].Entry &&
(ULONGLONG)InterruptTime.QuadPart >= KiTimerTableListHead[Hand].Time.QuadPart) {
KeInsertQueueDpc(&KiTimerExpireDpc, (PVOID)Hand, 0);
}
KiTimerMtx.Acquired = false;
KiTimerMtx.Acquired--;
KiTimerMtx.Mtx.unlock();
}