protected override MemoryBlock DoGetBlock()
{
lock (m_GetLock)
{
if (m_CurrentDeleteHandler == null)
{
// Create new TempFile
string l_FilePath = Path.Combine(m_CacheDirectory, Guid.NewGuid().ToString());
FileStream l_FileStream = new FileStream(l_FilePath, FileMode.CreateNew);
if (m_BlocksPerFile != 1)
{
l_FileStream.SetLength(m_BlocksPerFile * GetBlockSize());
}
m_CurrentDeleteHandler = new StreamManagerFilePoolDeleteHandler(l_FileStream, m_BlocksPerFile);
}
StreamManagerFilePoolDeleteHandler l_DeleteHandler = m_CurrentDeleteHandler;
long l_Offset = (m_BlocksPerFile - l_DeleteHandler.GetFreeBlockCount()) * GetBlockSize();
l_DeleteHandler.IncRefCount();
if (l_DeleteHandler.GetFreeBlockCount() == 0)
{
m_CurrentDeleteHandler = null;
}
return(new FileMemoryBlock(this, l_DeleteHandler.GetStream(), l_Offset, l_DeleteHandler));
}
}
protected override void DoReturnBlock(MemoryBlock p_Block)
{
// Delete the TempFile
FileMemoryBlock l_Block = (FileMemoryBlock)p_Block;
StreamManagerFilePoolDeleteHandler l_DeleteHandler = l_Block.DeleteHandler;
l_DeleteHandler.DecRefCount();
}
public FileMemoryBlock(StreamManagerPool p_Pool, Stream p_Stream, long p_Offset, StreamManagerFilePoolDeleteHandler p_DeleteHandler) : base(p_Pool)
{
m_Stream = p_Stream;
m_Offset = p_Offset;
m_DeleteHandler = p_DeleteHandler;
}