Arduino_STM32/STM32F4/libraries/arduino_uip/utility/mempool.h

55 lines
1.4 KiB
C++

/*
mempool.h - sleek implementation of a memory pool
Copyright (c) 2013 Norbert Truchsess <norbert.truchsess@t-online.de>
All rights reserved.
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, see <http://www.gnu.org/licenses/>.
*/
#ifndef MEMPOOL_H
#define MEMPOOL_H
#include <inttypes.h>
#define POOLSTART 0
#define NOBLOCK 0
#include "mempool_conf.h"
struct memblock
{
memaddress begin;
memaddress size;
memhandle nextblock;
};
class MemoryPool
{
#ifdef MEMPOOLTEST_H
friend class MemoryPoolTest;
#endif
protected:
static struct memblock blocks[MEMPOOL_NUM_MEMBLOCKS+1];
public:
static void init();
static memhandle allocBlock(memaddress);
static void freeBlock(memhandle);
static void resizeBlock(memhandle handle, memaddress position);
static void resizeBlock(memhandle handle, memaddress position, memaddress size);
static memaddress blockSize(memhandle);
};
#endif