297 lines
8.5 KiB
C++
297 lines
8.5 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
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//-----------------------------------------------------------------------------
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// NOTE! This should never be called directly from leaf code
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// Just use new,delete,malloc,free etc. They will call into this eventually
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//-----------------------------------------------------------------------------
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#include "pch_tier0.h"
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#if defined(_WIN32)
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#if !defined(_X360)
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#define WIN_32_LEAN_AND_MEAN
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#include <windows.h>
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#else
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#undef Verify
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#define _XBOX
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#include <xtl.h>
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#undef _XBOX
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#include "xbox/xbox_win32stubs.h"
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#endif
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#endif
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#ifdef OSX
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#include <malloc/malloc.h>
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#else
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#include <malloc.h>
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#endif
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#include <algorithm>
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#include "tier0/dbg.h"
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#include "tier0/memalloc.h"
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#include "tier0/threadtools.h"
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#include "tier0/tslist.h"
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#include "mem_helpers.h"
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#pragma pack(4)
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#ifdef _X360
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#define USE_PHYSICAL_SMALL_BLOCK_HEAP 1
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#endif
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// #define NO_SBH 1
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#define MIN_SBH_BLOCK 8
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#define MIN_SBH_ALIGN 8
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#define MAX_SBH_BLOCK 2048
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#define MAX_POOL_REGION (4*1024*1024)
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#if !defined(_X360)
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#define SBH_PAGE_SIZE (4*1024)
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#define COMMIT_SIZE (16*SBH_PAGE_SIZE)
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#else
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#define SBH_PAGE_SIZE (64*1024)
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#define COMMIT_SIZE (SBH_PAGE_SIZE)
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#endif
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#if _M_X64
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#define NUM_POOLS 34
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#else
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#define NUM_POOLS 42
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#endif
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// SBH not enabled for LINUX right now. Unlike on Windows, we can't globally hook malloc. Well,
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// we can and did in override_init_hook(), but that unfortunately causes all malloc functions
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// to get hooked - including the nVidia driver, etc. And these hooks appear to happen after
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// nVidia has alloc'd some memory and it crashes when they try to free that.
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// So we need things to work without this global hook - which means we rely on memdbgon.h / memdbgoff.h.
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// Unfortunately, that stuff always comes in source files after the headers are included, and
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// that means any alloc calls in the header files call the real libc functions. It's a mess.
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// I believe I've cleaned most of it up, and it appears to be working. However right now we are totally
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// gated on other performance issues, and the SBH doesn't give us any win, so I've disabled it for now.
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// Once those perf issues are worked out, it might make sense to do perf tests with SBH, libc, and tcmalloc.
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//
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//$ #if defined( _WIN32 ) || defined( _PS3 ) || defined( LINUX )
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#if defined( _WIN32 ) || defined( _PS3 )
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#define MEM_SBH_ENABLED 1
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#endif
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class ALIGN16 CSmallBlockPool
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{
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public:
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void Init( unsigned nBlockSize, byte *pBase, unsigned initialCommit = 0 );
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size_t GetBlockSize();
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bool IsOwner( void *p );
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void *Alloc();
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void Free( void *p );
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int CountFreeBlocks();
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int GetCommittedSize();
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int CountCommittedBlocks();
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int CountAllocatedBlocks();
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int Compact();
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private:
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typedef TSLNodeBase_t FreeBlock_t;
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class CFreeList : public CTSListBase
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{
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public:
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void Push( void *p ) { CTSListBase::Push( (TSLNodeBase_t *)p ); }
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};
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CFreeList m_FreeList;
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unsigned m_nBlockSize;
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CInterlockedPtr<byte> m_pNextAlloc;
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byte * m_pCommitLimit;
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byte * m_pAllocLimit;
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byte * m_pBase;
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CThreadFastMutex m_CommitMutex;
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} ALIGN16_POST;
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class ALIGN16 CSmallBlockHeap
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{
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public:
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CSmallBlockHeap();
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bool ShouldUse( size_t nBytes );
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bool IsOwner( void * p );
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void *Alloc( size_t nBytes );
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void *Realloc( void *p, size_t nBytes );
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void Free( void *p );
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size_t GetSize( void *p );
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void DumpStats( FILE *pFile = NULL );
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int Compact();
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private:
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CSmallBlockPool *FindPool( size_t nBytes );
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CSmallBlockPool *FindPool( void *p );
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CSmallBlockPool *m_PoolLookup[MAX_SBH_BLOCK >> 2];
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CSmallBlockPool m_Pools[NUM_POOLS];
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byte *m_pBase;
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byte *m_pLimit;
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} ALIGN16_POST;
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#ifdef USE_PHYSICAL_SMALL_BLOCK_HEAP
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#define BYTES_X360_SBH (32*1024*1024)
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#define PAGESIZE_X360_SBH (64*1024)
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class CX360SmallBlockPool
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{
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public:
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void Init( unsigned nBlockSize );
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size_t GetBlockSize();
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bool IsOwner( void *p );
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void *Alloc();
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void Free( void *p );
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int CountFreeBlocks();
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int GetCommittedSize();
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int CountCommittedBlocks();
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int CountAllocatedBlocks();
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static CX360SmallBlockPool *FindPool( void *p )
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{
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int index = (size_t)((byte *)p - gm_pPhysicalBase) / PAGESIZE_X360_SBH;
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if ( index < 0 || index >= ARRAYSIZE(gm_AddressToPool) )
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return NULL;
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return gm_AddressToPool[ index ];
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}
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private:
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friend class CX360SmallBlockHeap;
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typedef TSLNodeBase_t FreeBlock_t;
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class CFreeList : public CTSListBase
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{
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public:
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void Push( void *p ) { CTSListBase::Push( (TSLNodeBase_t *)p ); }
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};
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CFreeList m_FreeList;
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unsigned m_nBlockSize;
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unsigned m_CommittedSize;
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CInterlockedPtr<byte> m_pNextAlloc;
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byte * m_pCurBlockEnd;
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CThreadFastMutex m_CommitMutex;
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static CX360SmallBlockPool *gm_AddressToPool[BYTES_X360_SBH/PAGESIZE_X360_SBH];
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static byte *gm_pPhysicalBlock;
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static byte *gm_pPhysicalBase;
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static byte *gm_pPhysicalLimit;
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};
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class CX360SmallBlockHeap
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{
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public:
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CX360SmallBlockHeap();
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bool ShouldUse( size_t nBytes );
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bool IsOwner( void * p );
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void *Alloc( size_t nBytes );
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void *Realloc( void *p, size_t nBytes );
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void Free( void *p );
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size_t GetSize( void *p );
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void DumpStats( FILE *pFile = NULL );
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CSmallBlockHeap *GetStandardSBH();
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private:
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CX360SmallBlockPool *FindPool( size_t nBytes );
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CX360SmallBlockPool *FindPool( void *p );
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CX360SmallBlockPool *m_PoolLookup[MAX_SBH_BLOCK >> 2];
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CX360SmallBlockPool m_Pools[NUM_POOLS];
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};
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#endif
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class ALIGN16 CStdMemAlloc : public IMemAlloc
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{
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public:
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CStdMemAlloc()
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: m_pfnFailHandler( DefaultFailHandler ),
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m_sMemoryAllocFailed( (size_t)0 )
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{
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// Make sure that we return 64-bit addresses in 64-bit builds.
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ReserveBottomMemory();
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}
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// Release versions
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virtual void *Alloc( size_t nSize );
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virtual void *Realloc( void *pMem, size_t nSize );
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virtual void Free( void *pMem );
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virtual void *Expand_NoLongerSupported( void *pMem, size_t nSize );
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// Debug versions
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virtual void *Alloc( size_t nSize, const char *pFileName, int nLine );
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virtual void *Realloc( void *pMem, size_t nSize, const char *pFileName, int nLine );
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virtual void Free( void *pMem, const char *pFileName, int nLine );
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virtual void *Expand_NoLongerSupported( void *pMem, size_t nSize, const char *pFileName, int nLine );
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// Returns size of a particular allocation
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virtual size_t GetSize( void *pMem );
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// Force file + line information for an allocation
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virtual void PushAllocDbgInfo( const char *pFileName, int nLine );
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virtual void PopAllocDbgInfo();
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virtual long CrtSetBreakAlloc( long lNewBreakAlloc );
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virtual int CrtSetReportMode( int nReportType, int nReportMode );
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virtual int CrtIsValidHeapPointer( const void *pMem );
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virtual int CrtIsValidPointer( const void *pMem, unsigned int size, int access );
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virtual int CrtCheckMemory( void );
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virtual int CrtSetDbgFlag( int nNewFlag );
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virtual void CrtMemCheckpoint( _CrtMemState *pState );
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void* CrtSetReportFile( int nRptType, void* hFile );
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void* CrtSetReportHook( void* pfnNewHook );
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int CrtDbgReport( int nRptType, const char * szFile,
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int nLine, const char * szModule, const char * pMsg );
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virtual int heapchk();
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virtual void DumpStats();
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virtual void DumpStatsFileBase( char const *pchFileBase );
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virtual void GlobalMemoryStatus( size_t *pUsedMemory, size_t *pFreeMemory );
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virtual bool IsDebugHeap() { return false; }
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virtual void GetActualDbgInfo( const char *&pFileName, int &nLine ) {}
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virtual void RegisterAllocation( const char *pFileName, int nLine, size_t nLogicalSize, size_t nActualSize, unsigned nTime ) {}
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virtual void RegisterDeallocation( const char *pFileName, int nLine, size_t nLogicalSize, size_t nActualSize, unsigned nTime ) {}
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virtual int GetVersion() { return MEMALLOC_VERSION; }
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virtual void CompactHeap();
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virtual MemAllocFailHandler_t SetAllocFailHandler( MemAllocFailHandler_t pfnMemAllocFailHandler );
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size_t CallAllocFailHandler( size_t nBytes ) { return (*m_pfnFailHandler)( nBytes); }
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virtual uint32 GetDebugInfoSize() { return 0; }
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virtual void SaveDebugInfo( void *pvDebugInfo ) { }
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virtual void RestoreDebugInfo( const void *pvDebugInfo ) {}
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virtual void InitDebugInfo( void *pvDebugInfo, const char *pchRootFileName, int nLine ) {}
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static size_t DefaultFailHandler( size_t );
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void DumpBlockStats( void *p ) {}
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#ifdef MEM_SBH_ENABLED
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CSmallBlockHeap m_SmallBlockHeap;
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#ifdef USE_PHYSICAL_SMALL_BLOCK_HEAP
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CX360SmallBlockHeap m_LargePageSmallBlockHeap;
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#endif
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#endif
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#if defined( _MEMTEST )
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virtual void SetStatsExtraInfo( const char *pMapName, const char *pComment );
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#endif
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virtual size_t MemoryAllocFailed();
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void SetCRTAllocFailed( size_t nMemSize );
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MemAllocFailHandler_t m_pfnFailHandler;
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size_t m_sMemoryAllocFailed;
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} ALIGN16_POST;
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