// Copyright 2014 PDFium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#include "core/fxcrt/fx_memory.h"
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#include "core/fxcrt/fx_safe_types.h"
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#include <stdlib.h> // For abort().
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pdfium::base::PartitionAllocatorGeneric gArrayBufferPartitionAllocator;
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pdfium::base::PartitionAllocatorGeneric gGeneralPartitionAllocator;
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pdfium::base::PartitionAllocatorGeneric gStringPartitionAllocator;
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void FXMEM_InitializePartitionAlloc() {
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static bool s_gPartitionAllocatorsInitialized = false;
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if (!s_gPartitionAllocatorsInitialized) {
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pdfium::base::PartitionAllocGlobalInit(FX_OutOfMemoryTerminate);
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gArrayBufferPartitionAllocator.init();
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gGeneralPartitionAllocator.init();
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gStringPartitionAllocator.init();
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s_gPartitionAllocatorsInitialized = true;
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}
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}
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void* FXMEM_DefaultAlloc(size_t byte_size) {
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return pdfium::base::PartitionAllocGenericFlags(
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gGeneralPartitionAllocator.root(), pdfium::base::PartitionAllocReturnNull,
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byte_size, "GeneralPartition");
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}
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void* FXMEM_DefaultCalloc(size_t num_elems, size_t byte_size) {
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return FX_SafeAlloc(num_elems, byte_size);
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}
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void* FXMEM_DefaultRealloc(void* pointer, size_t new_size) {
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return pdfium::base::PartitionReallocGeneric(
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gGeneralPartitionAllocator.root(), pointer, new_size, "GeneralPartition");
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}
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void FXMEM_DefaultFree(void* pointer) {
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pdfium::base::PartitionFree(pointer);
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}
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NEVER_INLINE void FX_OutOfMemoryTerminate() {
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// Termimate cleanly if we can, else crash at a specific address (0xbd).
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abort();
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#ifndef _WIN32
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reinterpret_cast<void (*)()>(0xbd)();
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#endif
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}
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