/usr/include/gnash/gmemory.h is in gnash-dev 0.8.11~git20160109-1build1.
This file is owned by root:root, with mode 0o644.
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// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
// Free Software Foundation, Inc
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
//
// This class is a memory allocation tracker used to optimize
// the memory usage and find memory leaks.
//
#ifndef __MEMORY_H__
#define __MEMORY_H__
#ifdef HAVE_CONFIG_H
#include "gnashconfig.h"
#endif
// If we don't have support for mallinfo(), this code is useless
#ifdef HAVE_MALLINFO
#include <cstdlib>
#include <malloc.h>
#include <ctime>
#include "dsodefs.h" // DSOEXPORT
namespace gnash {
class DSOEXPORT Memory {
public:
// Borrowed from malloc.h and trimmed down.
struct small_mallinfo {
int line; // line number of this data sample
struct timespec stamp; // the time stamp of this sample
int arena; // non-mmapped space allocated from system
int uordblks; // total allocated space
int fordblks; // total free space
};
Memory();
Memory(size_t size);
~Memory();
// Start collecting statistics. This can effect performance
void startStats();
// Stop collecting statistics
void endStats() { addStats();_collecting = false; };
// Erase all collected data and reset collections.
void reset();
// checkpoint()
void startCheckpoint() { _checkpoint[0] = mallinfo(); };
bool endCheckpoint();
// Add or retrieve mallinfo data
int addStats();
int addStats(int line);
int addStats(struct small_mallinfo *x);
int addStats(struct small_mallinfo *x, int line);
struct small_mallinfo *getStats() { return _info; };
struct small_mallinfo *operator[](int x) { return _info + x; };
int totalStats() { return _index; };
// Analyze memory usage
bool analyze();
// Dump the differences of bytes allocated between two samples
int diffStats();
int diffStats(int x, int y);
// Dump the differences in the timestamp between two samples
int diffStamp();
int diffStamp(int x, int y);
// Dump the vector of stored classes
void dump(struct mallinfo *x);
void dump(struct small_mallinfo *x);
void dump();
void dumpCSV();
private:
bool _collecting;
// For data logging, we want to store as little as possible
// so we don't impact the system too hard. Data logging memory
// allocations can generate a huge amount of data, so we have
// to be careful. We also can't use STL, as that does more
// memory allocations, which will confuse our statistics
// gathering.
struct small_mallinfo *_info;
// Since we aren't using STL, we have to store how much
// data storage we have ourselves.
size_t _size;
int _index;
// For checkpoints, we want the all the data
struct mallinfo _checkpoint[2];
};
} // end of gnash namespace
#endif // end of HAVE_MALLINFO
// end of __MEMORY_H__
#endif
// Local Variables:
// mode: C++
// indent-tabs-mode: t
// End:
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