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/*
* Copyright (c) 2010,
* Gavriloaie Eugen-Andrei (shiretu@gmail.com)
*
* This file is part of crtmpserver.
* crtmpserver 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.
*
* crtmpserver 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 crtmpserver. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _STATICMEMPOOL_H
#define _STATICMEMPOOL_H
#ifdef USE_MEM_POOL
#include <stdlib.h>
#include <assert.h>
#include <new>
#include <map>
#include <string>
using namespace std;
#include <stdio.h>
#ifdef DEBUG_MEM_POOL
#define LOG_STATS(x) printf("T: %c; S: %lu; C: %lu; U: %lu\n",x,_size,_created, _used)
#else
#define
#define LOG_STATS(x)
#endif
#define DECLARE_MEMORY_POOL_STRUCT(Cls) \
static void* operator new(size_t s) { \
assert(s == sizeof (Cls)); \
return StaticMemoryPool<sizeof (Cls)>::GetInstance()->Allocate(); \
} \
static void operator delete(void* p) { \
if (p != NULL) \
StaticMemoryPool<sizeof (Cls)>::GetInstance()->Deallocate(p); \
} \
#define DECLARE_MEMORY_POOL(Cls) \
public: \
DECLARE_MEMORY_POOL_STRUCT(Cls) \
private: \
class MemoryPool;
class MemoryPoolManager {
private:
map<size_t, MemoryPool*> _memoryPools;
public:
virtual ~MemoryPoolManager();
static MemoryPoolManager &GetInstance();
void Register(MemoryPool* pMemoryPool);
void UnRegister(MemoryPool* pMemoryPool);
void Cleanup();
void info();
private:
MemoryPoolManager();
void Shutdown();
};
typedef struct _MemPoolEntry {
struct _MemPoolEntry *pNext;
} MemPoolEntry;
class MemoryPool {
protected:
MemPoolEntry *_pEntries;
size_t _created;
size_t _used;
size_t _size;
protected:
MemoryPool(size_t size);
public:
virtual ~MemoryPool();
void * Allocate();
void Deallocate(void *p);
void Cleanup();
size_t GetSize();
void info();
};
template<size_t size>
class StaticMemoryPool
: public MemoryPool {
private:
static StaticMemoryPool<size> *_pInstance;
protected:
StaticMemoryPool() : MemoryPool(size) {
};
public:
static StaticMemoryPool<size> * GetInstance() {
if (_pInstance == NULL) {
_pInstance = new StaticMemoryPool<size > ();
}
return _pInstance;
}
};
template<size_t size> StaticMemoryPool<size> * StaticMemoryPool<size>::_pInstance = NULL;
#else
#define DECLARE_MEMORY_POOL_STRUCT(Cls)
#define DECLARE_MEMORY_POOL(Cls)
#endif /* USE_MEM_POOL */
#endif /* _STATICMEMPOOL_H */
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