| // Copyright 2014 PDFium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
| |
| #ifndef _FX_MEMORY_H_ |
| #define _FX_MEMORY_H_ |
| #ifndef _FX_SYSTEM_H_ |
| #include "fx_system.h" |
| #endif |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| #define FX_Alloc(type, size) (type*)calloc(size, sizeof(type)) |
| #define FX_Realloc(type, ptr, size) (type*)realloc(ptr, sizeof(type) * (size)) |
| #define FX_AllocNL(type, size) FX_Alloc(type, size) |
| #define FX_ReallocNL(type, ptr, size) FX_Realloc(type, ptr, size) |
| #define FX_Free(ptr) free(ptr) |
| void* FXMEM_DefaultAlloc(size_t byte_size, int flags); |
| void* FXMEM_DefaultRealloc(void* pointer, size_t new_size, int flags); |
| void FXMEM_DefaultFree(void* pointer, int flags); |
| #ifdef __cplusplus |
| } |
| #endif |
| #ifdef __cplusplus |
| class CFX_Object |
| { |
| public: |
| void* operator new (size_t size, FX_LPCSTR file, int line) |
| { |
| return malloc(size); |
| } |
| void operator delete (void* p, FX_LPCSTR file, int line) |
| { |
| free(p); |
| } |
| void* operator new (size_t size) |
| { |
| return malloc(size); |
| } |
| void operator delete (void* p) |
| { |
| free(p); |
| } |
| void* operator new[] (size_t size, FX_LPCSTR file, int line) |
| { |
| return malloc(size); |
| } |
| void operator delete[] (void* p, FX_LPCSTR file, int line) |
| { |
| free(p); |
| } |
| void* operator new[] (size_t size) |
| { |
| return malloc(size); |
| } |
| void operator delete[] (void* p) |
| { |
| free(p); |
| } |
| void* operator new (size_t, void* buf) |
| { |
| return buf; |
| } |
| void operator delete (void*, void*) {} |
| }; |
| #endif |
| #ifdef __cplusplus |
| #if defined(_DEBUG) |
| #define FX_NEW new(__FILE__, __LINE__) |
| #else |
| |
| #define FX_NEW new |
| #endif |
| #define FX_NEW_VECTOR(Pointer, Class, Count) \ |
| { \ |
| Pointer = FX_Alloc(Class, Count); \ |
| if (Pointer) { \ |
| for (int i = 0; i < (Count); i ++) new (Pointer + i) Class; \ |
| } \ |
| } |
| #define FX_DELETE_VECTOR(Pointer, Class, Count) \ |
| { \ |
| for (int i = 0; i < (Count); i ++) Pointer[i].~Class(); \ |
| FX_Free(Pointer); \ |
| } |
| class CFX_DestructObject : public CFX_Object |
| { |
| public: |
| |
| virtual ~CFX_DestructObject() {} |
| }; |
| class CFX_GrowOnlyPool : public CFX_Object |
| { |
| public: |
| |
| CFX_GrowOnlyPool(size_t trunk_size = 16384); |
| |
| ~CFX_GrowOnlyPool(); |
| |
| void SetTrunkSize(size_t trunk_size) |
| { |
| m_TrunkSize = trunk_size; |
| } |
| |
| void* AllocDebug(size_t size, FX_LPCSTR file, int line) |
| { |
| return Alloc(size); |
| } |
| |
| void* Alloc(size_t size); |
| |
| void* ReallocDebug(void* p, size_t new_size, FX_LPCSTR file, int line) |
| { |
| return NULL; |
| } |
| |
| void* Realloc(void* p, size_t new_size) |
| { |
| return NULL; |
| } |
| |
| void Free(void*) {} |
| |
| void FreeAll(); |
| private: |
| |
| size_t m_TrunkSize; |
| |
| void* m_pFirstTrunk; |
| }; |
| #endif |
| #endif |