public override bool Release(int decrement)
{
if ((uint)(decrement - 1) > SharedConstants.TooBigOrNegative) // decrement <= 0
{
ThrowHelper.ThrowArgumentException_Positive(decrement, ExceptionArgument.decrement);
}
return(Release0(decrement));
}
public override IReferenceCounted Retain(int increment)
{
if ((uint)(increment - 1) > SharedConstants.TooBigOrNegative) // increment <= 0
{
ThrowHelper.ThrowArgumentException_Positive(increment, ExceptionArgument.increment);
}
return(Retain0(increment));
}
public ReceiveBufferSizeEstimate(int minimum = DefaultMinimum, int initial = DefaultInitial, int maximum = DefaultMaximum)
{
if ((uint)(minimum - 1) > SharedConstants.TooBigOrNegative)
{
ThrowHelper.ThrowArgumentException_Positive(minimum, ExceptionArgument.minimum);
}
if (initial < minimum)
{
ThrowHelper.ThrowArgumentOutOfRangeException(ExceptionArgument.initial);
}
if (initial > maximum)
{
ThrowHelper.ThrowArgumentOutOfRangeException(ExceptionArgument.maximum);
}
int min = GetSizeTableIndex(minimum);
if (SizeTable[min] < minimum)
{
_minIndex = min + 1;
}
else
{
_minIndex = min;
}
int max = GetSizeTableIndex(maximum);
if (SizeTable[max] > maximum)
{
_maxIndex = max - 1;
}
else
{
_maxIndex = max;
}
_index = GetSizeTableIndex(initial);
_receiveBufferSize = SizeTable[_index];
}
// TODO: Test if adding padding helps under contention
//private long pad0, pad1, pad2, pad3, pad4, pad5, pad6, pad7;
internal PoolThreadCache(PoolArena <T> heapArena, PoolArena <T> directArena,
int tinyCacheSize, int smallCacheSize, int normalCacheSize,
int maxCachedBufferCapacity, int freeSweepAllocationThreshold)
{
if (maxCachedBufferCapacity < 0)
{
ThrowHelper.ThrowArgumentException_PositiveOrZero(maxCachedBufferCapacity, ExceptionArgument.maxCachedBufferCapacity);
}
_freeSweepAllocationThreshold = freeSweepAllocationThreshold;
HeapArena = heapArena;
DirectArena = directArena;
if (directArena is object)
{
tinySubPageDirectCaches = CreateSubPageCaches(
tinyCacheSize, PoolArena <T> .NumTinySubpagePools, SizeClass.Tiny);
smallSubPageDirectCaches = CreateSubPageCaches(
smallCacheSize, directArena.NumSmallSubpagePools, SizeClass.Small);
_numShiftsNormalDirect = Log2(directArena.PageSize);
normalDirectCaches = CreateNormalCaches(
normalCacheSize, maxCachedBufferCapacity, directArena);
directArena.IncrementNumThreadCaches();
}
else
{
// No directArea is configured so just null out all caches
tinySubPageDirectCaches = null;
smallSubPageDirectCaches = null;
normalDirectCaches = null;
_numShiftsNormalDirect = -1;
}
if (heapArena is object)
{
// Create the caches for the heap allocations
tinySubPageHeapCaches = CreateSubPageCaches(
tinyCacheSize, PoolArena <T> .NumTinySubpagePools, SizeClass.Tiny);
smallSubPageHeapCaches = CreateSubPageCaches(
smallCacheSize, heapArena.NumSmallSubpagePools, SizeClass.Small);
_numShiftsNormalHeap = Log2(heapArena.PageSize);
normalHeapCaches = CreateNormalCaches(
normalCacheSize, maxCachedBufferCapacity, heapArena);
heapArena.IncrementNumThreadCaches();
}
else
{
// No heapArea is configured so just null out all caches
tinySubPageHeapCaches = null;
smallSubPageHeapCaches = null;
normalHeapCaches = null;
_numShiftsNormalHeap = -1;
}
// We only need to watch the thread when any cache is used.
if (tinySubPageDirectCaches is object || smallSubPageDirectCaches is object || normalDirectCaches is object ||
tinySubPageHeapCaches is object || smallSubPageHeapCaches is object || normalHeapCaches is object)
{
if (freeSweepAllocationThreshold < 1)
{
ThrowHelper.ThrowArgumentException_Positive(freeSweepAllocationThreshold, ExceptionArgument.freeSweepAllocationThreshold);
}
_freeTask = Free0;
_deathWatchThread = Thread.CurrentThread;
// The thread-local cache will keep a list of pooled buffers which must be returned to
// the pool when the thread is not alive anymore.
ThreadDeathWatcher.Watch(_deathWatchThread, _freeTask);
}
else
{
_freeTask = null;
_deathWatchThread = null;
}
}