protected override IByteBuffer NewBuffer(int initialCapacity, int maxCapacity)
{
if (initialCapacity > this.MaxPooledBufSize)
{
return(new UnpooledHeapByteBuffer(this, initialCapacity, maxCapacity));
}
PooledByteBuffer buffer = this.pool.Take();
buffer.Init();
return(buffer);
}
void InitBufWithSubpage(PooledByteBuffer <T> buf, long handle, int bitmapIdx, int reqCapacity)
{
Contract.Assert(bitmapIdx != 0);
int memoryMapIdx = MemoryMapIdx(handle);
PoolSubpage <T> subpage = this.subpages[this.SubpageIdx(memoryMapIdx)];
Contract.Assert(subpage.DoNotDestroy);
Contract.Assert(reqCapacity <= subpage.ElemSize);
buf.Init(
this, handle,
this.RunOffset(memoryMapIdx) + (bitmapIdx & 0x3FFFFFFF) * subpage.ElemSize, reqCapacity, subpage.ElemSize,
this.Arena.Parent.ThreadCache <T>());
}
void InitBufWithSubpage(PooledByteBuffer <T> buf, long handle, int bitmapIdx, int reqCapacity, PoolThreadCache <T> threadCache)
{
Debug.Assert(bitmapIdx != 0);
int memoryMapIdx = MemoryMapIdx(handle);
PoolSubpage <T> subpage = _subpages[SubpageIdx(memoryMapIdx)];
Debug.Assert(subpage.DoNotDestroy);
Debug.Assert(reqCapacity <= subpage.ElemSize);
buf.Init(
this, handle,
RunOffset(memoryMapIdx) + (bitmapIdx & 0x3FFFFFFF) * subpage.ElemSize + Offset,
reqCapacity, subpage.ElemSize, threadCache);
}
internal void InitBuf(PooledByteBuffer <T> buf, long handle, int reqCapacity, PoolThreadCache <T> threadCache)
{
int memoryMapIdx = MemoryMapIdx(handle);
int bitmapIdx = BitmapIdx(handle);
if (0u >= (uint)bitmapIdx)
{
sbyte val = Value(memoryMapIdx);
Debug.Assert(val == _unusable, val.ToString());
buf.Init(this, handle, RunOffset(memoryMapIdx) + Offset, reqCapacity, RunLength(memoryMapIdx), threadCache);
}
else
{
InitBufWithSubpage(buf, handle, bitmapIdx, reqCapacity, threadCache);
}
}
internal void InitBuf(PooledByteBuffer <T> buf, long handle, int reqCapacity)
{
int memoryMapIdx = MemoryMapIdx(handle);
int bitmapIdx = BitmapIdx(handle);
if (bitmapIdx == 0)
{
sbyte val = this.Value(memoryMapIdx);
Contract.Assert(val == this.unusable, val.ToString());
buf.Init(this, handle, this.RunOffset(memoryMapIdx), reqCapacity, this.RunLength(memoryMapIdx),
this.Arena.Parent.ThreadCache <T>());
}
else
{
this.InitBufWithSubpage(buf, handle, bitmapIdx, reqCapacity);
}
}