TcpSocket.h

00001 #pragma once
00002 ////////////////////////////////////////////////////////////////////////////////
00003 // TcpSocket.h
00004 ////////////////////////////////////////////////////////////////////////////////
00005 
00006 #include "NyLPC_netif.h"
00007 #include "IpAddr.h"
00008 
00009 namespace MiMic
00010 {
00011     /**
00012      * Tcp Socket Class.
00013      * The class is used by Net constructor.
00014      */
00015     class TcpSocket
00016     {
00017     private:
00018         NyLPC_TiTcpSocket_t* _inst;
00019     public:
00020         /** wrapped base LPC class.*/
00021         NyLPC_TiTcpSocket_t* refBaseInstance(){return this->_inst;}
00022     
00023     public:
00024         TcpSocket();
00025         virtual ~TcpSocket();
00026         /**
00027          * @param i_host_addr
00028          * must be IPv4 address format.
00029          */
00030         bool connect (const IpAddr& i_addr,unsigned short i_port);
00031         bool send(const void* i_tx,unsigned short i_tx_size);
00032         /**
00033          * This function return recieved data and size.
00034          * The function sets the head of the readable buffer which can always be read. 
00035          * A position is not changed until pseek was called.         
00036          * @param i_rx
00037          * address of variable which accepts received data pointer.
00038          * @retrun
00039          * n<-1 Error
00040          * n==0 Timeout (connection still established)
00041          * n>0  Success. readable data size in i_rx.
00042          */
00043         int precv(const void* &i_rx);
00044         int precv(const char* &i_rx);
00045         /**
00046          * true if precv has data.
00047          * This can avoid the block of precv.
00048          */
00049         bool canRecv();
00050 
00051         /**
00052          * This function seek rx pointer to next.
00053          * @param i_rx_size
00054          * seek size. Must be returned value which is small or equal by the precv.
00055          */
00056         void pseek(unsigned short i_rx_seek);
00057         void close();
00058    };
00059 
00060 }