1/* Copyright (c) 2008, Google Inc. 2 * All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 * 30 * -- 31 * Author: Craig Silverstein 32 * 33 * C shims for the C++ malloc_extension.h. See malloc_extension.h for 34 * details. Note these C shims always work on 35 * MallocExtension::instance(); it is not possible to have more than 36 * one MallocExtension object in C applications. 37 */ 38 39#ifndef _MALLOC_EXTENSION_C_H_ 40#define _MALLOC_EXTENSION_C_H_ 41 42#include <stddef.h> 43#include <sys/types.h> 44 45/* Annoying stuff for windows -- makes sure clients can import these fns */ 46#ifndef PERFTOOLS_DLL_DECL 47# ifdef _WIN32 48# define PERFTOOLS_DLL_DECL __declspec(dllimport) 49# else 50# define PERFTOOLS_DLL_DECL 51# endif 52#endif 53 54#ifdef __cplusplus 55extern "C" { 56#endif 57 58#define kMallocExtensionHistogramSize 64 59 60PERFTOOLS_DLL_DECL int MallocExtension_VerifyAllMemory(void); 61PERFTOOLS_DLL_DECL int MallocExtension_VerifyNewMemory(const void* p); 62PERFTOOLS_DLL_DECL int MallocExtension_VerifyArrayNewMemory(const void* p); 63PERFTOOLS_DLL_DECL int MallocExtension_VerifyMallocMemory(const void* p); 64PERFTOOLS_DLL_DECL int MallocExtension_MallocMemoryStats(int* blocks, size_t* total, 65 int histogram[kMallocExtensionHistogramSize]); 66PERFTOOLS_DLL_DECL void MallocExtension_GetStats(char* buffer, int buffer_length); 67 68/* TODO(csilvers): write a C version of these routines, that perhaps 69 * takes a function ptr and a void *. 70 */ 71/* void MallocExtension_GetHeapSample(string* result); */ 72/* void MallocExtension_GetHeapGrowthStacks(string* result); */ 73 74PERFTOOLS_DLL_DECL int MallocExtension_GetNumericProperty(const char* property, size_t* value); 75PERFTOOLS_DLL_DECL int MallocExtension_SetNumericProperty(const char* property, size_t value); 76PERFTOOLS_DLL_DECL void MallocExtension_MarkThreadIdle(void); 77PERFTOOLS_DLL_DECL void MallocExtension_MarkThreadBusy(void); 78PERFTOOLS_DLL_DECL void MallocExtension_ReleaseToSystem(size_t num_bytes); 79PERFTOOLS_DLL_DECL void MallocExtension_ReleaseFreeMemory(void); 80PERFTOOLS_DLL_DECL size_t MallocExtension_GetEstimatedAllocatedSize(size_t size); 81PERFTOOLS_DLL_DECL size_t MallocExtension_GetAllocatedSize(const void* p); 82 83/* 84 * NOTE: These enum values MUST be kept in sync with the version in 85 * malloc_extension.h 86 */ 87typedef enum { 88 MallocExtension_kUnknownOwnership = 0, 89 MallocExtension_kOwned, 90 MallocExtension_kNotOwned 91} MallocExtension_Ownership; 92 93PERFTOOLS_DLL_DECL MallocExtension_Ownership MallocExtension_GetOwnership(const void* p); 94 95#ifdef __cplusplus 96} // extern "C" 97#endif 98 99#endif /* _MALLOC_EXTENSION_C_H_ */ 100