1 /* 2 * Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved. 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Library General Public 6 * License as published by the Free Software Foundation; either 7 * version 2 of the License, or (at your option) any later version. 8 * 9 * This library is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Library General Public License for more details. 13 * 14 * You should have received a copy of the GNU Library General Public License 15 * along with this library; see the file COPYING.LIB. If not, write to 16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 17 * Boston, MA 02110-1301, USA. 18 * 19 */ 20 21 #ifndef WTF_FastMalloc_h 22 #define WTF_FastMalloc_h 23 24 #include "wtf/WTFExport.h" 25 #include <cstddef> 26 27 namespace WTF { 28 29 // These functions crash safely if an allocation fails. 30 WTF_EXPORT void* fastMalloc(size_t); 31 WTF_EXPORT void* fastZeroedMalloc(size_t); 32 WTF_EXPORT void* fastCalloc(size_t numElements, size_t elementSize); 33 WTF_EXPORT void* fastRealloc(void*, size_t); 34 WTF_EXPORT char* fastStrDup(const char*); 35 WTF_EXPORT size_t fastMallocGoodSize(size_t); 36 37 WTF_EXPORT void fastFree(void*); 38 39 #ifndef NDEBUG 40 WTF_EXPORT void fastMallocForbid(); 41 WTF_EXPORT void fastMallocAllow(); 42 #endif 43 44 WTF_EXPORT void releaseFastMallocFreeMemory(); 45 46 struct FastMallocStatistics { 47 size_t reservedVMBytes; 48 size_t committedVMBytes; 49 size_t freeListBytes; 50 }; 51 WTF_EXPORT FastMallocStatistics fastMallocStatistics(); 52 53 // This defines a type which holds an unsigned integer and is the same 54 // size as the minimally aligned memory allocation. 55 typedef unsigned long long AllocAlignmentInteger; 56 57 } // namespace WTF 58 59 using WTF::fastCalloc; 60 using WTF::fastFree; 61 using WTF::fastMalloc; 62 using WTF::fastMallocGoodSize; 63 using WTF::fastRealloc; 64 using WTF::fastStrDup; 65 using WTF::fastZeroedMalloc; 66 67 #ifndef NDEBUG 68 using WTF::fastMallocForbid; 69 using WTF::fastMallocAllow; 70 #endif 71 72 #endif /* WTF_FastMalloc_h */ 73