protected SlidingWindow(TimeSpan slidingWindowLength, TimeSpan bucketLength, Func <DateTime> currentTimeProvider)
{
SlidingWindow.ValidateSlidingWindowAndBucketLength(slidingWindowLength, bucketLength);
ExAssert.RetailAssert(currentTimeProvider != null, "Current time provider should not be null.");
this.BucketLength = bucketLength;
this.currentTimeProvider = currentTimeProvider;
this.creationTime = this.currentTimeProvider();
this.NumberOfBuckets = (int)(slidingWindowLength.Ticks / this.BucketLength.Ticks);
this.filled = new bool[this.NumberOfBuckets];
}
internal SegmentedSlidingCounter(TimeSpan[] segments, TimeSpan bucketLength, Func <DateTime> currentTimeProvider)
{
if (segments == null)
{
throw new ArgumentNullException("segments");
}
if (segments.Length == 0)
{
throw new ArgumentException("segments cannot be empty");
}
this.bucketLength = bucketLength;
if (currentTimeProvider == null)
{
this.currentTimeProvider = new Func <DateTime>(this.GetCurrentTime);
this.creationTime = this.RoundToBucketLength(DateTime.UtcNow);
this.currentTime = this.creationTime;
}
else
{
this.currentTimeProvider = currentTimeProvider;
this.creationTime = this.RoundToBucketLength(this.currentTimeProvider());
}
this.numSegments = (long)segments.Length;
this.numBucketsPerSegment = new long[this.numSegments];
this.segmentValues = new long[this.numSegments + 1L];
this.numBuckets = 0L;
for (long num = 0L; num < this.numSegments; num += 1L)
{
long num2;
checked
{
TimeSpan slidingWindowLength = segments[(int)((IntPtr)num)];
SlidingWindow.ValidateSlidingWindowAndBucketLength(slidingWindowLength, bucketLength);
num2 = slidingWindowLength.Ticks / this.bucketLength.Ticks;
this.numBucketsPerSegment[(int)((IntPtr)num)] = num2;
}
this.numBuckets += num2;
}
this.bucketValues = new long[this.numBuckets];
}