platform_bionic/libc/malloc_debug/TrackData.h
Colin Cross 869691c6f7 Export malloc_iterate and friends
Export malloc_iterate, malloc_enable, and malloc_disable to be used by
libmemunreachable.

Change-Id: I08a50349af82a95d096b6b4cbac37ababe4b9b06
2016-02-18 15:05:38 -08:00

75 lines
2.5 KiB
C++

/*
* Copyright (C) 2015 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef DEBUG_MALLOC_TRACKDATA_H
#define DEBUG_MALLOC_TRACKDATA_H
#include <stdint.h>
#include <pthread.h>
#include <vector>
#include <unordered_set>
#include <private/bionic_macros.h>
// Forward declarations.
struct Header;
struct Config;
class DebugData;
class TrackData {
public:
TrackData() = default;
virtual ~TrackData() = default;
void GetList(std::vector<const Header*>* list);
void Add(const Header* header, bool backtrace_found);
void Remove(const Header* header, bool backtrace_found);
bool Contains(const Header *header);
void GetInfo(DebugData& debug, uint8_t** info, size_t* overall_size,
size_t* info_size, size_t* total_memory, size_t* backtrace_size);
void DisplayLeaks(DebugData& debug);
void PrepareFork() { pthread_mutex_lock(&mutex_); }
void PostForkParent() { pthread_mutex_unlock(&mutex_); }
void PostForkChild() { pthread_mutex_init(&mutex_, NULL); }
private:
pthread_mutex_t mutex_ = PTHREAD_MUTEX_INITIALIZER;
std::unordered_set<const Header*> headers_;
size_t total_backtrace_allocs_ = 0;
DISALLOW_COPY_AND_ASSIGN(TrackData);
};
#endif // DEBUG_MALLOC_TRACKDATA_H