public TracedLock(TraceableLock traceableLock, TimeSpan?timeout)
{
if (timeout == null)
{
timeout = TimeSpan.FromSeconds(30);
}
_status = TracedLockStatus.Acquiring; //useful for detecting dead-lock
_traceableLock = traceableLock;
LockAnalyzer.Lock(traceableLock);
//collect useful information about the context such
//as stacktrace, time to acquire the lock(T1)
if (Monitor.TryEnter(_traceableLock, timeout.Value))
{
_status = TracedLockStatus.Acquired;
}
else
{
_status = TracedLockStatus.Timedout;
}
//lock is acuired, so collect acquired-time(T2)
//[T2-T1 = time taken to acquire lock]
}
public void Dispose()
{
LockAnalyzer.Release(TraceableLock);
if (_status == TracedLockStatus.Acquired)
{
Monitor.Exit(_traceableLock);
}
//T3: activity in a lock is over
}