188 lines
3.9 KiB
C++
188 lines
3.9 KiB
C++
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/**
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* Tencent is pleased to support the open source community by making MSEC available.
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*
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* Copyright (C) 2016 THL A29 Limited, a Tencent company. All rights reserved.
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*
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* Licensed under the GNU General Public License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License. You may
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* obtain a copy of the License at
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*
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* https://opensource.org/licenses/GPL-2.0
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*
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* Unless required by applicable law or agreed to in writing, software distributed under the
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* License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
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* either express or implied. See the License for the specific language governing permissions
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* and limitations under the License.
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*/
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/**
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* @file mt_session.h
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* @info 微线程的事件会话管理部分, 每个后端连接关联一session信息
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* @time 20130924
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**/
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#ifndef __MT_SESSION_H__
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#define __MT_SESSION_H__
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#include "hash_list.h"
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namespace NS_MICRO_THREAD {
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class MicroThread;
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class IMtConnection;
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enum SESSION_FLAG
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{
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SESSION_IDLE = 0, ///< SESSION 未加入hash管理
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SESSION_INUSE = 1, ///< SESSION 进入管理状态
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};
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/**
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* @brief 并发请求session接口定义, 根据session可映射出thread,action等
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*/
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class ISession : public HashKey
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{
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public:
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/**
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* @brief 构造与析构函数
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*/
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ISession() : _session_id(0), _session_flg(0), _thread(NULL), _connection(NULL) {};
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virtual ~ISession();
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public:
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/**
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* @brief 会话ID的设置与获取
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*/
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void SetSessionId(int id) {
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_session_id = id;
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};
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int GetSessionId() {
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return _session_id;
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};
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/**
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* @brief 关联线程的设置与获取
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*/
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MicroThread* GetOwnerThread(){
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return _thread;
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};
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void SetOwnerThread(MicroThread* thread) {
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_thread = thread;
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};
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/**
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* @brief 关联连接的设置与获取
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*/
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IMtConnection* GetSessionConn(){
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return _connection;
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};
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void SetSessionConn(IMtConnection* conn) {
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_connection = conn;
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};
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/**
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* @brief 会话flag的设置与获取
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*/
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void SetSessionFlag(int flag) {
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_session_flg = flag;
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};
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int GetSessionFlag() {
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return _session_flg;
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};
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/**
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* @brief 节点元素的hash算法, 获取key的hash值
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* @return 节点元素的hash值
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*/
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virtual uint32_t HashValue(){
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return _session_id;
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};
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/**
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* @brief 节点元素的cmp方法, 同一桶ID下, 按key比较
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* @return 节点元素的hash值
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*/
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virtual int HashCmp(HashKey* rhs){
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return this->_session_id - (int)rhs->HashValue();
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};
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protected:
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int _session_id; // 会话id信息
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int _session_flg; // 记录session状态 0 -不在hash中, 1 -hash管理中
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MicroThread* _thread; // 会话所属的session
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IMtConnection* _connection; // 会话关联的连接
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};
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/**
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* @brief 全局的session管理结构
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*/
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class SessionMgr
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{
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public:
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/**
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* @brief 会话上下文的全局管理句柄接口
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* @return 全局句柄指针
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*/
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static SessionMgr* Instance (void);
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/**
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* @brief 全局的删除接口
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*/
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static void Destroy();
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/**
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* @brief 获取sessionid
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* @return 全局句柄指针
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*/
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int GetSessionId(void) {
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_curr_session++;
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if (!_curr_session) {
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_curr_session++;
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}
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return _curr_session;
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};
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/**
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* @brief Session数据存储
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*/
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int InsertSession(ISession* session);
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/**
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* @brief 查询session数据
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*/
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ISession* FindSession(int session_id);
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/**
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* @brief 删除session数据
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*/
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void RemoveSession(int session_id);
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/**
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* @brief 析构函数
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*/
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~SessionMgr();
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private:
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/**
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* @brief 消息buff的构造函数
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*/
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SessionMgr();
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static SessionMgr * _instance; ///< 单例类句柄
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int _curr_session; ///< session种子
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HashList* _hash_map; ///< 按sessionid hash存储
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};
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}
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#endif
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