private StreamWriter _sw = new StreamWriter(new MemoryStream()); //@"d:\temp\gc-log.txt");
public AutoMemoryManager(AutoMemoryManagementContext autoMemoryManagementContext, IMemoryManager underlying)
{
_sw.BaseStream.SetLength(0);
_autoMemoryManagementContext = autoMemoryManagementContext;
_underlying = underlying;
_poolSize = _initialPoolSize;
_pool = underlying.Alloc(_initialPoolSize).value;
_defaultLayout = autoMemoryManagementContext.RuntimeGlobalAccessor.GetDefaultLayoutInfo();
_markBitFieldInfo = _defaultLayout.Fields[autoMemoryManagementContext.MarkBitFieldNumber];
_realBlockSizeFieldInfo = _defaultLayout.Fields[autoMemoryManagementContext.RealBlockSizeFieldNumber];
MMFreeBlockHeader *item = (MMFreeBlockHeader *)_pool;
item->next = MMFreeBlockHeader.ZeroPtr;
item->size = _poolSize - sizeof(MMFreeBlockHeader);
_freeBlocks = item;
_stats.currentAllocatedBlocksCount = 0;
_stats.currentAllocatedBytes = 0;
_stats.currentAllBlocksCount = 1;
_stats.currentAvailableBytes = _poolSize;
_stats.totalBlocksCreated = 1;
_stats.totalBlocksMerged = 0;
_stats.totalBlocksAllocated = 0;
_stats.totalBlocksFreed = 0;
}
private void Expand()
{
var newPool = _underlying.Alloc(_poolSize).value;
if (newPool == IntPtr.Zero)
{
throw new OutOfMemoryException("Failed to expand memory pool");
}
MMFreeBlockHeader *item = (MMFreeBlockHeader *)newPool;
item->next = MMFreeBlockHeader.ZeroPtr;
item->size = _poolSize - sizeof(MMFreeBlockHeader);
this.InsertFreeBlockToList(item);
}
private void Expand()
{
var poolSize = _poolSize;
var poolHeaderOffset = poolSize.AlignTo(Alignment);
var newPool = _underlyingMM.Alloc((poolHeaderOffset + sizeof(MMPool)).AlignTo(Alignment)).value;
if (newPool == IntPtr.Zero)
{
throw new OutOfMemoryException("Failed to expand memory pool");
}
MMFreeBlockHeader *item = (MMFreeBlockHeader *)newPool;
item->next = MMFreeBlockHeader.ZeroPtr;
item->size = poolSize - sizeof(MMFreeBlockHeader);
this.InsertFreeBlockToList(item);
MMPool *poolHeader = (MMPool *)(((int)newPool) + poolHeaderOffset);
poolHeader->next = _pools;
poolHeader->rangePtr = newPool;
poolHeader->size = poolSize;
_pools = poolHeader;
}
public BlockPtr Alloc(int size)
{
return(_underlying.Alloc(size));
}
public BlockPtr Alloc(int size)
{
return(_memoryManager.Alloc(size));
}