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/*
* Copyright (C) 2008-2009 Torch Mobile Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include "MemoryManager.h"
#undef malloc
#undef calloc
#undef realloc
#undef free
#undef strdup
#undef _strdup
#undef VirtualAlloc
#undef VirtualFree
#include <malloc.h>
#include <windows.h>
namespace WTF {
MemoryManager* memoryManager()
{
static MemoryManager mm;
return &mm;
}
MemoryManager::MemoryManager()
: m_allocationCanFail(false)
{
}
MemoryManager::~MemoryManager()
{
}
HBITMAP MemoryManager::createCompatibleBitmap(HDC hdc, int width, int height)
{
return ::CreateCompatibleBitmap(hdc, width, height);
}
HBITMAP MemoryManager::createDIBSection(const BITMAPINFO* pbmi, void** ppvBits)
{
return ::CreateDIBSection(0, pbmi, DIB_RGB_COLORS, ppvBits, 0, 0);
}
void* MemoryManager::m_malloc(size_t size)
{
return malloc(size);
}
void* MemoryManager::m_calloc(size_t num, size_t size)
{
return calloc(num, size);
}
void* MemoryManager::m_realloc(void* p, size_t size)
{
return realloc(p, size);
}
void MemoryManager::m_free(void* p)
{
return free(p);
}
bool MemoryManager::resizeMemory(void*, size_t)
{
return false;
}
void* MemoryManager::allocate64kBlock()
{
return VirtualAlloc(0, 65536, MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE);
}
void MemoryManager::free64kBlock(void* p)
{
VirtualFree(p, 65536, MEM_RELEASE);
}
bool MemoryManager::onIdle(DWORD& timeLimitMs)
{
return false;
}
LPVOID MemoryManager::virtualAlloc(LPVOID lpAddress, DWORD dwSize, DWORD flAllocationType, DWORD flProtect)
{
return ::VirtualAlloc(lpAddress, dwSize, flAllocationType, flProtect);
}
BOOL MemoryManager::virtualFree(LPVOID lpAddress, DWORD dwSize, DWORD dwFreeType)
{
return ::VirtualFree(lpAddress, dwSize, dwFreeType);
}
#if defined(USE_SYSTEM_MALLOC) && USE_SYSTEM_MALLOC
void *fastMalloc(size_t n) { return malloc(n); }
void *fastCalloc(size_t n_elements, size_t element_size) { return calloc(n_elements, element_size); }
void fastFree(void* p) { return free(p); }
void *fastRealloc(void* p, size_t n) { return realloc(p, n); }
#else
void *fastMalloc(size_t n) { return MemoryManager::m_malloc(n); }
void *fastCalloc(size_t n_elements, size_t element_size) { return MemoryManager::m_calloc(n_elements, element_size); }
void fastFree(void* p) { return MemoryManager::m_free(p); }
void *fastRealloc(void* p, size_t n) { return MemoryManager::m_realloc(p, n); }
#endif
#ifndef NDEBUG
void fastMallocForbid() {}
void fastMallocAllow() {}
#endif
void* fastZeroedMalloc(size_t n)
{
void* p = fastMalloc(n);
if (p)
memset(p, 0, n);
return p;
}
TryMallocReturnValue tryFastMalloc(size_t n)
{
MemoryAllocationCanFail canFail;
return fastMalloc(n);
}
TryMallocReturnValue tryFastZeroedMalloc(size_t n)
{
MemoryAllocationCanFail canFail;
return fastZeroedMalloc(n);
}
TryMallocReturnValue tryFastCalloc(size_t n_elements, size_t element_size)
{
MemoryAllocationCanFail canFail;
return fastCalloc(n_elements, element_size);
}
TryMallocReturnValue tryFastRealloc(void* p, size_t n)
{
MemoryAllocationCanFail canFail;
return fastRealloc(p, n);
}
char* fastStrDup(const char* str)
{
return _strdup(str);
}
}
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