boost之内存池使用实例

来源：互联网发布：c语言有趣小程序编辑：程序博客网时间：2024/05/16 13:55

需要说明的就是初始化的时候指定的是内存池分配内存块的大小，而且内存池是非线程安全的，多线程要加锁

#ifndef BUFFER_POOL_H#define BUFFER_POOL_H#include "boost_comm.h"using namespace boost;namespace seemmo{class buffer_pool{public:buffer_pool(int chunk_size);~buffer_pool();protected:static boost::mutex mtx_;static buffer_pool *instance(){boost::unique_lock<boost::mutex> wlock(mtx_);static buffer_pool inst(1024);return &inst;}public:static char *comm_sz1024_buffer(){boost::unique_lock<boost::mutex> wlock(instance()->mtx_1_);return (char *)instance()->m_buffer_bp.malloc();}static void comm_sz1024_free(void *p){boost::unique_lock<boost::mutex> wlock(instance()->mtx_1_);instance()->m_buffer_bp.free(p);}static unsigned char *bin_value_alloc(){boost::unique_lock<boost::mutex> wlock(instance()->mtx_2_);return (unsigned char *)instance()->m_bin_value_.malloc();}static void bin_value_free(void *p){boost::unique_lock<boost::mutex> wlock(instance()->mtx_2_);instance()->m_bin_value_.free(p);}protected:boost::mutex mtx_1_;boost::pool<> m_buffer_bp;boost::mutex mtx_2_;boost::pool<> m_bin_value_;private:};}#endif // BUFFER_POOL_H

#include "buffer_pool.h"#include "config.h"namespace seemmo{boost::mutex buffer_pool::mtx_;buffer_pool::buffer_pool(int chunk_size):m_buffer_bp(BUFFER_POOL_COMM_CHUNK_SIZE),//1km_bin_value_(BUFFER_POOL_BIN_CHUNK_SIZE)//256k{}buffer_pool::~buffer_pool(){}}

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