mirror of https://github.com/F-Stack/f-stack.git
124 lines
3.2 KiB
C++
124 lines
3.2 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_net_api.h
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* @info 微线程封装的网络接口类
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**/
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#ifndef __MT_NET_API_H__
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#define __MT_NET_API_H__
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#include <netinet/in.h>
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namespace NS_MICRO_THREAD {
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/**
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* @brief 协议类型定义
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*/
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enum MT_PROTO_TYPE
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{
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NET_PROTO_UNDEF = 0,
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NET_PROTO_UDP = 0x1, ///< 连接类型 UDP
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NET_PROTO_TCP = 0x2 ///< 连接类型 TCP
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};
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/**
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* @brief 返回类型定义
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*/
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enum MT_RC_TYPE
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{
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RC_SUCCESS = 0,
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RC_ERR_SOCKET = -1, ///< 创建socket失败
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RC_SEND_FAIL = -2, ///< 发送失败
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RC_RECV_FAIL = -3, ///< 接收失败
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RC_CONNECT_FAIL = -4, ///< 连接失败
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RC_CHECK_PKG_FAIL = -5, ///< 报文检测失败
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RC_NO_MORE_BUFF = -6, ///< 空间超过限制
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RC_REMOTE_CLOSED = -7, ///< 后端关闭连接
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RC_INVALID_PARAM = -10, ///< 无效参数
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RC_INVALID_HANDLER = -11, ///< 无效的句柄
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RC_MEM_ERROR = -12, ///< 内存异常
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RC_CONFLICT_SID = -13, ///< SESSION ID冲突
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RC_KQUEUE_ERROR = -14, ///< rst信号等
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};
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/**
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* @brief 检查报文是否完整, 并获取session的回调函数
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* @info 提供need_len参数的原因, 对于无法确认报文长度时, 可以每次扩展希望长度
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* 如果依赖返回值的隐含规则, 将无法处理这种情况
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* @param data -实际接收的数据指针
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* @param len -已经接收或准备的长度
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* @param session_id -成功解析的sessionid信息
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* @param need_len -希望扩展一下buff, 目前最大100M
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* @return >0 成功解析返回实际的包长度; =0 报文不完整, 期望接收更多数据; <0 解析失败
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*/
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typedef int32_t (*CHECK_SESSION_CALLBACK)(const void* data, uint32_t len,
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uint64_t* session_id, uint32_t* need_len);
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/**
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* @brief 网络接口类定义
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*/
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class CNetHelper
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{
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public:
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// 转发返回码信息, 按需获取
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static char* GetErrMsg(int32_t result);
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// 同步收发接口
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int32_t SendRecv(void* data, uint32_t len, uint32_t timeout);
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// 获取返回buff信息, 有效期直到helper析构
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void* GetRspBuff();
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// 获取返回包的长度
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uint32_t GetRspLen();
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// 设置协议的类型, 默认UDP
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void SetProtoType(MT_PROTO_TYPE type);
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// 设置目的IP地址
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void SetDestAddress(struct sockaddr_in* dst);
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// 设置session本次session id信息, 必须非0
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void SetSessionId(uint64_t sid);
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// 设置session解析回调函数
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void SetSessionCallback(CHECK_SESSION_CALLBACK function);
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// 构造与虚构
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CNetHelper();
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~CNetHelper();
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private:
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void* handler; // 私有句柄, 利于扩展
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};
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}
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#endif
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