mirror of
https://github.com/nillerusr/source-engine.git
synced 2024-12-23 14:46:53 +00:00
453 lines
12 KiB
C
453 lines
12 KiB
C
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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 IS_WINDOWS_PC
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#define WIN_32_LEAN_AND_MEAN
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#include <windows.h>
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#define VA_COMMIT_FLAGS MEM_COMMIT
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#define VA_RESERVE_FLAGS MEM_RESERVE
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#elif defined( _X360 )
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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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#define VA_COMMIT_FLAGS (MEM_COMMIT|MEM_NOZERO|MEM_LARGE_PAGES)
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#define VA_RESERVE_FLAGS (MEM_RESERVE|MEM_LARGE_PAGES)
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#elif defined( _PS3 )
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#include "sys/memory.h"
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#include "sys/mempool.h"
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#include "sys/process.h"
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#include <sys/vm.h>
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#endif
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//#include <malloc.h>
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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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#ifndef _PS3
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#pragma pack(4)
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#endif
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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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#define NUM_POOLS 42
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#if defined( _WIN32 ) || defined( _PS3 )
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// FIXME: Disable small block heap on win64 for now; it's busted because
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// it's expecting SLIST_HEADER to look different than it does on win64
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#if !defined( PLATFORM_WINDOWS_PC64 )
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#define MEM_SBH_ENABLED 1
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#endif
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#endif
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#if !defined(_CERT) && ( defined(_X360) || defined(_PS3) )
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#define TRACK_SBH_COUNTS
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#endif
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#if defined(_X360)
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// 360 uses a 48MB primary (physical) SBH and 10MB secondary (virtual) SBH, with no fallback
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#define MBYTES_PRIMARY_SBH 48
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#define MEMALLOC_USE_SECONDARY_SBH
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#define MBYTES_SECONDARY_SBH 10
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#define MEMALLOC_NO_FALLBACK
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#elif defined(_PS3)
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// PS3 uses just a 32MB SBH - this was enough to avoid overflow when Portal 2 shipped.
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// NOTE: when Steam uses the game's tier0 allocator (see memalloc.h), we increase the size
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// of the SBH and MBH (see memstd.cpp) to accommodate those extra allocations.
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#define MBYTES_PRIMARY_SBH ( 32 + MBYTES_STEAM_SBH_USAGE )
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#define MEMALLOC_NO_FALLBACK
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#else // _X360 | _PS3
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// Other platforms use a 48MB primary SBH and a (32MB) fallback SBH
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#define MBYTES_PRIMARY_SBH 48
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#endif // _X360 | _PS3
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#define MEMSTD_COMPILE_TIME_ASSERT( pred ) switch(0){case 0:case pred:;}
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//-----------------------------------------------------------------------------
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// Small block pool
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//-----------------------------------------------------------------------------
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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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byte *Pop() { return (byte *)CTSListBase::Pop(); }
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};
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template <typename CAllocator>
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class CSmallBlockHeap;
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template <typename CAllocator>
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class CSmallBlockPool
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{
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public:
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CSmallBlockPool()
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{
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m_nBlockSize = 0;
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m_nCommittedPages = 0;
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m_pFirstPage = NULL;
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}
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void Init( unsigned nBlockSize );
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size_t GetBlockSize();
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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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size_t Compact( bool bIncremental );
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bool Validate();
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enum
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{
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BYTES_PAGE = CAllocator::BYTES_PAGE,
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NOT_COMMITTED = -1
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};
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private:
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typedef CSmallBlockHeap<CAllocator> CHeap;
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friend class CSmallBlockHeap<CAllocator>;
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struct PageStatus_t : public TSLNodeBase_t
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{
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PageStatus_t()
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{
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m_pPool = NULL;
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m_nAllocated = NOT_COMMITTED;
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m_pNextPageInPool = NULL;
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}
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CSmallBlockPool<CAllocator> * m_pPool;
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PageStatus_t * m_pNextPageInPool;
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CInterlockedInt m_nAllocated;
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CTSListBase m_SortList;
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};
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struct SharedData_t
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{
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CAllocator m_Allocator;
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CTSListBase m_FreePages;
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CThreadSpinRWLock m_Lock;
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PageStatus_t m_PageStatus[CAllocator::TOTAL_BYTES/CAllocator::BYTES_PAGE];
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byte * m_pNextBlock;
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byte * m_pBase;
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byte * m_pLimit;
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};
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static int PageSort( const void *p1, const void *p2 ) ;
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bool RemovePagesFromFreeList( byte **pPages, int nPages, bool bSortList );
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void ValidateFreelist( SharedData_t *pSharedData );
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CFreeList m_FreeList;
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CInterlockedPtr<byte> m_pNextAlloc;
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PageStatus_t * m_pFirstPage;
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unsigned m_nBlockSize;
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unsigned m_nCommittedPages;
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CThreadFastMutex m_CommitMutex;
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#ifdef TRACK_SBH_COUNTS
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CInterlockedInt m_nFreeBlocks;
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#endif
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static SharedData_t *GetSharedData()
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{
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return &gm_SharedData;
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}
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static SharedData_t gm_SharedData;
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};
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//-----------------------------------------------------------------------------
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// Small block heap (multi-pool)
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//-----------------------------------------------------------------------------
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template <typename CAllocator>
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class 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( const char *pszTag, FILE *pFile = NULL );
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void Usage( size_t &bytesCommitted, size_t &bytesAllocated );
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size_t Compact( bool bIncremental );
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bool Validate();
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enum
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{
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BYTES_PAGE = CAllocator::BYTES_PAGE
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};
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private:
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typedef CSmallBlockPool<CAllocator> CPool;
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typedef struct CSmallBlockPool<CAllocator>::SharedData_t SharedData_t;
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CPool *FindPool( size_t nBytes );
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CPool *FindPool( void *p );
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// Map size to a pool address to a pool
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CPool *m_PoolLookup[MAX_SBH_BLOCK >> 2];
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CPool m_Pools[NUM_POOLS];
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SharedData_t *m_pSharedData;
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};
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//-----------------------------------------------------------------------------
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//
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//-----------------------------------------------------------------------------
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class CStdMemAlloc : public IMemAlloc
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{
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public:
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CStdMemAlloc();
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// Internal versions
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void *InternalAlloc( int region, size_t nSize );
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#ifdef MEMALLOC_SUPPORTS_ALIGNED_ALLOCATIONS
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void *InternalAllocAligned( int region, size_t nSize, size_t align );
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#endif
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void *InternalAllocFromPools( size_t nSize );
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void *InternalRealloc( void *pMem, size_t nSize );
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#ifdef MEMALLOC_SUPPORTS_ALIGNED_ALLOCATIONS
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void *InternalReallocAligned( void *pMem, size_t nSize, size_t align );
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#endif
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void InternalFree( void *pMem );
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void CompactOnFail();
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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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#ifdef MEMALLOC_SUPPORTS_ALIGNED_ALLOCATIONS
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virtual void *AllocAlign( size_t nSize, size_t align );
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virtual void *AllocAlign( size_t nSize, size_t align, const char *pFileName, int nLine );
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virtual void *ReallocAlign( void *pMem, size_t nSize, size_t align );
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virtual void *ReallocAlign( void *pMem, size_t nSize, size_t align, const char *pFileName, int nLine );
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#endif
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virtual void *RegionAlloc( int region, size_t nSize );
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virtual void *RegionAlloc( int region, 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 int32 CrtSetBreakAlloc( int32 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 size_t ComputeMemoryUsedBy( char const *pchSubStr );
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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 OutOfMemory( size_t nBytesAttempted = 0 ) { SetCRTAllocFailed( nBytesAttempted ); }
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virtual IVirtualMemorySection * AllocateVirtualMemorySection( size_t numMaxBytes );
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virtual int GetGenericMemoryStats( GenericMemoryStat_t **ppMemoryStats );
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virtual void CompactHeap();
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virtual void CompactIncremental();
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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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#if MEM_SBH_ENABLED
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class CVirtualAllocator
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{
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public:
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enum
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{
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BYTES_PAGE = (64*1024),
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TOTAL_BYTES = (32*1024*1024),
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MIN_RESERVE_PAGES = 4,
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};
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byte *AllocatePoolMemory()
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{
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#ifdef _WIN32
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return (byte *)VirtualAlloc( NULL, TOTAL_BYTES, VA_RESERVE_FLAGS, PAGE_NOACCESS );
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#elif defined( _PS3 )
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Error( "" );
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return NULL;
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#else
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#error
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#endif
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}
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bool IsVirtual()
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{
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return true;
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}
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bool Decommit( void *pPage )
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{
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#ifdef _WIN32
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return ( VirtualFree( pPage, BYTES_PAGE, MEM_DECOMMIT ) != 0 );
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#elif defined( _PS3 )
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return false;
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#else
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#error
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#endif
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}
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bool Commit( void *pPage )
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{
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#ifdef _WIN32
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return ( VirtualAlloc( pPage, BYTES_PAGE, VA_COMMIT_FLAGS, PAGE_READWRITE ) != NULL );
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#elif defined( _PS3 )
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return false;
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#else
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#error
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#endif
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}
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};
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typedef CSmallBlockHeap<CVirtualAllocator> CVirtualSmallBlockHeap;
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template <size_t SIZE_MB, bool bPhysical>
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class CFixedAllocator
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{
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public:
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enum
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{
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BYTES_PAGE = (16*1024),
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TOTAL_BYTES = (SIZE_MB*1024*1024),
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MIN_RESERVE_PAGES = TOTAL_BYTES/BYTES_PAGE,
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};
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byte *AllocatePoolMemory()
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{
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#ifdef _WIN32
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#ifdef _X360
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if ( bPhysical )
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return (byte *)XPhysicalAlloc( TOTAL_BYTES, MAXULONG_PTR, 4096, PAGE_READWRITE | MEM_16MB_PAGES );
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#endif
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return (byte *)VirtualAlloc( NULL, TOTAL_BYTES, VA_COMMIT_FLAGS, PAGE_READWRITE );
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#elif defined( _PS3 )
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// TODO: release this section on shutdown (use GetMemorySectionForAddress)
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extern IVirtualMemorySection * VirtualMemoryManager_AllocateVirtualMemorySection( size_t numMaxBytes );
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IVirtualMemorySection *pSection = VirtualMemoryManager_AllocateVirtualMemorySection( TOTAL_BYTES );
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if ( !pSection )
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Error( "CFixedAllocator::AllocatePoolMemory() failed in VirtualMemoryManager_AllocateVirtualMemorySection\n" );
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if ( !pSection->CommitPages( pSection->GetBaseAddress(), TOTAL_BYTES ) )
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Error( "CFixedAllocator::AllocatePoolMemory() failed in IVirtualMemorySection::CommitPages\n" );
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return reinterpret_cast<byte *>( pSection->GetBaseAddress() );
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#else
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#error
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#endif
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}
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bool IsVirtual()
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{
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return false;
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}
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bool Decommit( void *pPage )
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{
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return false;
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}
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bool Commit( void *pPage )
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{
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return false;
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}
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};
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typedef CSmallBlockHeap<CFixedAllocator< MBYTES_PRIMARY_SBH, true> > CFixedSmallBlockHeap;
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#ifdef MEMALLOC_USE_SECONDARY_SBH
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typedef CSmallBlockHeap<CFixedAllocator< MBYTES_SECONDARY_SBH, false> > CFixedVirtualSmallBlockHeap; // @TODO: move back into above heap if number stays at 16 [7/15/2009 tom]
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#endif
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CFixedSmallBlockHeap m_PrimarySBH;
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#ifdef MEMALLOC_USE_SECONDARY_SBH
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CFixedVirtualSmallBlockHeap m_SecondarySBH;
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#endif
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#ifndef MEMALLOC_NO_FALLBACK
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CVirtualSmallBlockHeap m_FallbackSBH;
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#endif
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#endif // MEM_SBH_ENABLED
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virtual void SetStatsExtraInfo( const char *pMapName, const char *pComment );
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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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CThreadFastMutex m_CompactMutex;
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bool m_bInCompact;
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};
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#ifndef _PS3
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#pragma pack()
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#endif
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