1 // Copyright 2014 PDFium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com 6 7 #include "core/fxcrt/fx_memory.h" 8 #include "core/fxcrt/fx_safe_types.h" 9 10 #include <stdlib.h> // For abort(). 11 12 pdfium::base::PartitionAllocatorGeneric gArrayBufferPartitionAllocator; 13 pdfium::base::PartitionAllocatorGeneric gGeneralPartitionAllocator; 14 pdfium::base::PartitionAllocatorGeneric gStringPartitionAllocator; 15 16 void FXMEM_InitializePartitionAlloc() { 17 static bool s_gPartitionAllocatorsInitialized = false; 18 if (!s_gPartitionAllocatorsInitialized) { 19 pdfium::base::PartitionAllocGlobalInit(FX_OutOfMemoryTerminate); 20 gArrayBufferPartitionAllocator.init(); 21 gGeneralPartitionAllocator.init(); 22 gStringPartitionAllocator.init(); 23 s_gPartitionAllocatorsInitialized = true; 24 } 25 } 26 27 void* FXMEM_DefaultAlloc(size_t byte_size) { 28 return pdfium::base::PartitionAllocGenericFlags( 29 gGeneralPartitionAllocator.root(), pdfium::base::PartitionAllocReturnNull, 30 byte_size, "GeneralPartition"); 31 } 32 33 void* FXMEM_DefaultCalloc(size_t num_elems, size_t byte_size) { 34 return FX_SafeAlloc(num_elems, byte_size); 35 } 36 37 void* FXMEM_DefaultRealloc(void* pointer, size_t new_size) { 38 return pdfium::base::PartitionReallocGeneric( 39 gGeneralPartitionAllocator.root(), pointer, new_size, "GeneralPartition"); 40 } 41 42 void FXMEM_DefaultFree(void* pointer) { 43 pdfium::base::PartitionFree(pointer); 44 } 45 46 NEVER_INLINE void FX_OutOfMemoryTerminate() { 47 // Termimate cleanly if we can, else crash at a specific address (0xbd). 48 abort(); 49 #ifndef _WIN32 50 reinterpret_cast<void (*)()>(0xbd)(); 51 #endif 52 } 53
