main.cpp

一个内存池的allocator,参考stl源码的内存池实现

#include "memory_pool.hpp"
#include <iostream>
#include "shm_alloc.hpp"
#include <vector>
#include <algorithm>
#include <iterator>

using namespace std;
using namespace happycode;

template< class T >
void print(T i) {cout << i << "  ";};

int main()
{
	char *heap_mem = new char[10485760];

	MemoryPool<256,512> mempool;

	try {
	mempool.init_mem(heap_mem,10485760);
	} catch(mempool_init_error &e) {
		cerr << e.what() << endl;
	}

	shm_allocator<int,256,512>::mempoolptr = &mempool;

	vector< int,shm_allocator<int,256,512> > test(40);
	test.push_back(1);
	test.push_back(10);
	test.push_back(5);
	test.push_back(3);
	cout << mempool.dump() << endl;  //use 256 block 4
	
	sort(test.begin(),test.end());
	for_each(test.begin(),test.end(),print<int>);

	cout << mempool.dump() << endl;  //use 256 block 4
	
	return 0;
}