68 lines
2.7 KiB
C++
Executable File

#pragma once
/**
*
* @libdoc The MySocketTCP class provides a simple interface for creating and sending/receiving data over a TCP socket.
*
* @short This class provides a simple interface for creating and sending/receiving data over a TCP socket.
* @author Ian Johnson
* @version 1.0
*/
//version 1.0, base development, Ian 19/01/09
/* Modified by anna on 19.01.2009 */
/*
canceled SetupParameters() and varaibles intialized in the constructors' headers;
defined SEND_REC_MAX_SIZE (for compatibilty with mythen (and possibly other) pure C servers (i would move it to the common header file)
added #ifndef C_ONLY... to cutout class definition when including in pure C servers (can be removed if SEND_REC_MAX_SIZE is moved to the common header file)
defined private variables char hostname[1000] and int portno to store connection informations;
defined public functions int getHostname(char *name) and int getPortNumber() to retrieve connection informations
added public function int getErrorStatus() returning 1 if socketDescriptor<0
remove exits in the constructors and replace them with socketDescriptor=-1
replaced the argument of send/receive data with void (to avoid too much casting or compiler errors/warnings)
added a function which really does not close the socket between send/receive (senddataonly, receivedataonly)
*/
/* Modified by Anna on 31.10.2012
developed and
*/
#include "genericSocket.h"
#define TCP_PACKET_SIZE 4096
class MySocketTCP: public genericSocket {
public:
MySocketTCP(const char* const host_ip_or_name, unsigned short int const port_number): genericSocket(host_ip_or_name, port_number,TCP), last_keep_connection_open_action_was_a_send(0){setPacketSize(TCP_PACKET_SIZE);}; // sender (client): where to? ip
MySocketTCP(unsigned short int const port_number):genericSocket(port_number,TCP), last_keep_connection_open_action_was_a_send(0) {setPacketSize(TCP_PACKET_SIZE);}; // receiver (server) local no need for ip
//The following two functions will connectioned->send/receive->disconnect
int SendData(void* buf,int length);//length in characters
int ReceiveData(void* buf,int length);
//The following two functions stay connected, blocking other connections, and must be manually disconnected,
// when the last call is a SendData() or ReceiveData() the disconnection will be done automatically
//These function will also automatically disconnect->reconnect if
// two reads (or two writes) are called in a row to preserve the data send/receive structure
int SendDataAndKeepConnection(void* buf,int length);
int ReceiveDataAndKeepConnection(void* buf,int length);
private:
bool last_keep_connection_open_action_was_a_send;
};