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/*
Copyright (C) 2005-2009 Michel de Boer <michel@twinklephone.com>
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 2 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, see <https://www.gnu.org/licenses/>.
*/
#ifndef _MEMMAN_H
#define _MEMMAN_H
#include <string>
#include <map>
#include "threads/mutex.h"
#define MEMMAN_NEW(ptr) memman->trc_new((ptr), __FILE__, __LINE__)
#define MEMMAN_NEW_ARRAY(ptr) memman->trc_new((ptr), __FILE__, __LINE__, true)
#define MEMMAN_DELETE(ptr) memman->trc_delete((ptr), __FILE__, __LINE__)
#define MEMMAN_DELETE_ARRAY(ptr) memman->trc_delete((ptr), __FILE__, __LINE__, true)
#define MEMMAN_REPORT { memman->report_stats(); memman->report_leaks(); }
using namespace std;
// Memory manager
// Trace memory allocations and deallocations
class t_ptr_info {
public:
// Src file from which pointer has been allocated
string filename;
// Line number of memman trace command tracing this pointer
int lineno;
// Indicates if the pointer points to an array
bool is_array;
t_ptr_info() {};
t_ptr_info(const string &_filename, int _lineno, bool _is_array);
};
class t_memman {
private:
// Map of allocated pointers
map<void *, t_ptr_info> pointer_map;
// Statistics
unsigned long num_new; // number of new's
unsigned long num_new_duplicate; // number of duplicate new's
unsigned long num_delete; // number of delete's
unsigned long num_delete_mismatch; // number of delete's for without a new
unsigned long num_array_mixing; // number of array/non-array mixes
// Mutex to protect operations on the memory manager
t_mutex mtx_memman;
public:
t_memman();
// Report pointer allocation
void trc_new(void *p, const string &filename, int lineno,
bool is_array = false);
// Report pointer deallocation
void trc_delete(void *p, const string &filename, int lineno,
bool is_array = false);
// Write a memory leak report to log
void report_leaks(void);
// Write statistics to log
void report_stats(void);
};
extern t_memman *memman;
#endif
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