You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
67 lines
1.9 KiB
67 lines
1.9 KiB
//========= Copyright ©, Valve LLC, All rights reserved. ======================
|
|
//
|
|
// Purpose: Defines a buffer pool used to group small allocations
|
|
//
|
|
//=============================================================================
|
|
|
|
#ifndef BUFFERPOOL_H
|
|
#define BUFFERPOOL_H
|
|
#ifdef _WIN32
|
|
#pragma once
|
|
#endif
|
|
|
|
#include "tier1/utlbuffer.h"
|
|
#include "tier1/utlvector.h"
|
|
|
|
namespace GCSDK
|
|
{
|
|
|
|
//----------------------------------------------------------------------------
|
|
// Purpose: Defines buffers that can be used to group lots of small allocs
|
|
// together to improve performance. The buffers will naturally grow over time
|
|
// to accommodate the largest consumers of the feature.
|
|
//----------------------------------------------------------------------------
|
|
class CBufferPool
|
|
{
|
|
public:
|
|
CBufferPool( const char *pchName, const GCConVar &cvMaxSizeMB, const GCConVar &cvInitBufferSize, int nFlags = 0 );
|
|
~CBufferPool();
|
|
|
|
CUtlBuffer *GetBuffer();
|
|
void ReturnBuffer( CUtlBuffer *pBuffer );
|
|
|
|
static void DumpPools();
|
|
|
|
private:
|
|
static CUtlVector<CBufferPool *> sm_vecBufferPools;
|
|
|
|
const GCConVar &m_cvMaxSizeMB;
|
|
const GCConVar &m_cvInitBufferSize;
|
|
int m_nFlags;
|
|
|
|
int32 m_nBuffersInUse;
|
|
int32 m_nHighWatermark;
|
|
int32 m_nBuffersTotal;
|
|
size_t m_cubFree;
|
|
CUtlVector<CUtlBuffer *> m_vecFreeBuffers;
|
|
CUtlConstString m_sName;
|
|
};
|
|
|
|
//thread safe version of the above which synchronizes access at the buffer allocate/release
|
|
class CBufferPoolMT
|
|
{
|
|
public:
|
|
CBufferPoolMT( const char *pchName, const GCConVar &cvMaxSizeMB, const GCConVar &cvInitBufferSize, int nFlags = 0 ) :
|
|
m_BufferPool( pchName, cvMaxSizeMB, cvInitBufferSize, nFlags )
|
|
{}
|
|
|
|
CUtlBuffer *GetBuffer() { AUTO_LOCK( m_mutex ); return m_BufferPool.GetBuffer(); }
|
|
void ReturnBuffer( CUtlBuffer *pBuffer ) { AUTO_LOCK( m_mutex ); m_BufferPool.ReturnBuffer( pBuffer ); }
|
|
private:
|
|
CBufferPool m_BufferPool;
|
|
CThreadFastMutex m_mutex;
|
|
};
|
|
|
|
} // namespace GCSDK
|
|
|
|
#endif // BUFFERPOOL_H
|