mirror of https://github.com/tongzx/nt5src
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.
96 lines
3.1 KiB
96 lines
3.1 KiB
//+---------------------------------------------------------------------------
|
|
//
|
|
// Copyright (C) Microsoft Corporation, 1997.
|
|
//
|
|
// alloc.h
|
|
//
|
|
// Global allocation macros and routines.
|
|
//
|
|
// History:
|
|
// Mon Jun 02 16:53:42 1997 -by- Drew Bliss [drewb]
|
|
// Created
|
|
//
|
|
//----------------------------------------------------------------------------
|
|
|
|
#ifndef __ALLOC_H__
|
|
#define __ALLOC_H__
|
|
|
|
#include <types.h>
|
|
|
|
//
|
|
// Usage notes:
|
|
//
|
|
// ALLOC is a direct replacement for malloc().
|
|
// ALLOCZ allocates zero-filled memory.
|
|
// REALLOC is a direct replacement for realloc().
|
|
// FREE is a direct replacement for free().
|
|
//
|
|
// On debug builds these macros evaluate to calls to a memory-tracking
|
|
// allocator. On free builds they make direct heap calls.
|
|
// All of the rest of the allocation routines are built on top of the
|
|
// above macros and so inherit their tracking capabilities.
|
|
//
|
|
// The basic allocation routines also provide a mechanism to randomly
|
|
// cause allocations to fail via manipulation of the glRandomMallocFail
|
|
// variable.
|
|
//
|
|
|
|
#if DBG
|
|
|
|
extern long glRandomMallocFail;
|
|
|
|
void * FASTCALL dbgAlloc(UINT nbytes, DWORD flags);
|
|
void * FASTCALL dbgRealloc(void *mem, UINT nbytes);
|
|
void FASTCALL dbgFree(void *mem);
|
|
int FASTCALL dbgMemSize(void *mem);
|
|
|
|
#define ALLOC(nbytes) dbgAlloc((nbytes), 0)
|
|
#define ALLOCZ(nbytes) dbgAlloc((nbytes), HEAP_ZERO_MEMORY)
|
|
#define REALLOC(mem, nbytes) dbgRealloc((mem), (nbytes))
|
|
#define FREE(mem) dbgFree((mem))
|
|
|
|
#else // DBG
|
|
|
|
#define ALLOC(nbytes) HeapAlloc(GetProcessHeap(), 0, (nbytes))
|
|
#define ALLOCZ(nbytes) HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, \
|
|
(nbytes))
|
|
#define REALLOC(mem, nbytes) HeapReAlloc(GetProcessHeap(), 0, (mem), \
|
|
(nbytes))
|
|
#define FREE(mem) HeapFree(GetProcessHeap(), 0, (mem))
|
|
|
|
#endif // DBG
|
|
|
|
//
|
|
// 32-byte aligned memory allocator.
|
|
//
|
|
void * FASTCALL AllocAlign32(UINT nbytes);
|
|
void FASTCALL FreeAlign32(void *mem);
|
|
|
|
//
|
|
// Short-lived memory allocator. This allocator should be used
|
|
// for relatively small allocations (<= 4K) that are only live for
|
|
// a function or two.
|
|
//
|
|
BOOL FASTCALL InitTempAlloc(void);
|
|
void * FASTCALL gcTempAlloc(__GLcontext *gc, UINT nbytes);
|
|
void FASTCALL gcTempFree(__GLcontext *gc, void *mem);
|
|
|
|
//
|
|
// Allocator wrappers which automatically set the gc error on failure.
|
|
// The wrappers don't currently do anything extra on frees but
|
|
// having matching free calls allows for per-gc tracking if necessary.
|
|
//
|
|
|
|
// Internal worker function.
|
|
void * FASTCALL gcAlloc(__GLcontext *gc, UINT nbytes, DWORD flags);
|
|
|
|
#define GCALLOC(gc, nbytes) gcAlloc((gc), (nbytes), 0)
|
|
#define GCALLOCZ(gc, nbytes) gcAlloc((gc), (nbytes), HEAP_ZERO_MEMORY)
|
|
|
|
void * FASTCALL GCREALLOC(__GLcontext *gc, void *mem, UINT nbytes);
|
|
#define GCFREE(gc, mem) FREE(mem)
|
|
|
|
void * FASTCALL GCALLOCALIGN32(__GLcontext *gc, UINT nbytes);
|
|
#define GCFREEALIGN32(gc, mem) FreeAlign32(mem)
|
|
|
|
#endif // #ifndef __ALLOC_H__
|