ContinueTryEnter()

void System.Threading.SpinLock.ContinueTryEnter ( int millisecondsTimeout, ref bool lockTaken )

inlineprivate

Definition at line 139 of file SpinLock.cs.

    {
        if (lockTaken)
        {
            lockTaken = false;
            throw new ArgumentException(SR.SpinLock_TryReliableEnter_ArgumentException);
        }
        if (millisecondsTimeout < -1)
        {
            throw new ArgumentOutOfRangeException("millisecondsTimeout", millisecondsTimeout, SR.SpinLock_TryEnter_ArgumentOutOfRange);
        }
        uint startTime = 0u;
        if (millisecondsTimeout != -1 && millisecondsTimeout != 0)
        {
            startTime = TimeoutHelper.GetTime();
        }
        if (IsThreadOwnerTrackingEnabled)
        {
            ContinueTryEnterWithThreadTracking(millisecondsTimeout, startTime, ref lockTaken);
            return;
        }
        int num = int.MaxValue;
        int owner = _owner;
        if ((owner & 1) == 0)
        {
            if (CompareExchange(ref _owner, owner | 1, owner, ref lockTaken) == owner || millisecondsTimeout == 0)
            {
                return;
            }
        }
        else
        {
            if (millisecondsTimeout == 0)
            {
                return;
            }
            if ((owner & 0x7FFFFFFE) != 2147483646)
            {
                num = (Interlocked.Add(ref _owner, 2) & 0x7FFFFFFE) >> 1;
            }
        }
        SpinWait spinWait = default(SpinWait);
        if (num > Environment.ProcessorCount)
        {
            spinWait.Count = 10;
        }
        do
        {
            spinWait.SpinOnce(40);
            owner = _owner;
            if ((owner & 1) == 0)
            {
                int value = (((owner & 0x7FFFFFFE) == 0) ? (owner | 1) : ((owner - 2) | 1));
                if (CompareExchange(ref _owner, value, owner, ref lockTaken) == owner)
                {
                    return;
                }
            }
        }
        while (spinWait.Count % 10 != 0 || millisecondsTimeout == -1 || TimeoutHelper.UpdateTimeOut(startTime, millisecondsTimeout) > 0);
        DecrementWaiters();
    }

References System.Threading.SpinLock._owner, System.Threading.Interlocked.Add(), System.Threading.SpinLock.CompareExchange(), System.Threading.SpinLock.ContinueTryEnterWithThreadTracking(), System.Threading.SpinWait.Count, System.Threading.SpinLock.DecrementWaiters(), System.Threading.TimeoutHelper.GetTime(), System.Threading.SpinLock.IsThreadOwnerTrackingEnabled, System.millisecondsTimeout, System.Environment.ProcessorCount, System.SR.SpinLock_TryEnter_ArgumentOutOfRange, System.SR.SpinLock_TryReliableEnter_ArgumentException, System.Threading.SpinWait.SpinOnce(), System.Threading.TimeoutHelper.UpdateTimeOut(), and System.value.

Referenced by System.Threading.SpinLock.Enter(), System.Threading.SpinLock.TryEnter(), and System.Threading.SpinLock.TryEnter().