/// <summary>
/// <see cref="IWaitStrategy.WaitFor"/>.
/// </summary>
public long WaitFor(long sequence, Sequence cursor, ISequence dependentSequence, ISequenceBarrier barrier)
{
var milliseconds = _timeoutInMilliseconds;
long availableSequence;
if (cursor.Value < sequence)
{
lock (_lock)
{
while (cursor.Value < sequence)
{
Interlocked.Exchange(ref _signalNeeded, 1);
barrier.CheckAlert();
if (!Monitor.Wait(_lock, milliseconds))
{
throw TimeoutException.Instance;
}
}
}
}
var aggressiveSpinWait = new AggressiveSpinWait();
while ((availableSequence = dependentSequence.Value) < sequence)
{
barrier.CheckAlert();
aggressiveSpinWait.SpinOnce();
}
return(availableSequence);
}
/// <summary>
/// <see cref="IWaitStrategy.WaitFor"/>
/// </summary>
public long WaitFor(long sequence, Sequence cursor, ISequence dependentSequence, ISequenceBarrier barrier)
{
var timeSpan = _timeout;
if (cursor.Value < sequence)
{
lock (_gate)
{
while (cursor.Value < sequence)
{
barrier.CheckAlert();
if (!Monitor.Wait(_gate, timeSpan))
{
throw TimeoutException.Instance;
}
}
}
}
var aggressiveSpinWait = new AggressiveSpinWait();
long availableSequence;
while ((availableSequence = dependentSequence.Value) < sequence)
{
barrier.CheckAlert();
aggressiveSpinWait.SpinOnce();
}
return(availableSequence);
}
/// <summary>
/// <see cref="IWaitStrategy.WaitFor"/>
/// </summary>
public long WaitFor(long sequence, Sequence cursor, ISequence dependentSequence, ISequenceBarrier barrier)
{
if (cursor.Value < sequence)
{
lock (_gate)
{
while (cursor.Value < sequence)
{
barrier.CheckAlert();
Monitor.Wait(_gate);
}
}
}
var aggressiveSpinWait = new AggressiveSpinWait();
long availableSequence;
while ((availableSequence = dependentSequence.Value) < sequence)
{
barrier.CheckAlert();
aggressiveSpinWait.SpinOnce();
}
return(availableSequence);
}