public void Exit()
{
CheckDisposed();
int num = InterlockedEx.And(ref _lockState, -2);
if (num != 1)
{
num &= -2;
if (InterlockedEx.CompareAndExchange(ref _lockState, num & -2, num - 2))
{
_waiterLock.Release(1);
}
}
Thread.EndCriticalRegion();
}
public void Enter(int timeout)
{
CheckDisposed();
Thread.BeginCriticalRegion();
while (true)
{
int ifThisEqualsToValue = InterlockedEx.Or(ref _lockState, LockIsOwned);
if ((ifThisEqualsToValue & LockIsOwned) == LockIsFree)
{
return;
}
if (InterlockedEx.CompareAndExchange(
ref _lockState, ifThisEqualsToValue, ifThisEqualsToValue + WaitersCountBase))
{
_waiterLock.WaitOne(timeout, false);
}
}
}