// ------------------------------- //
// -------- Start of File -------- //
// ------------------------------- //
// ----------------------------------------------------------- //
// C++ Source Code File Name: server.cpp
// C++ Compiler Used: MSVC, BCC32, GCC, HPUX aCC, SOLARIS CC
// Produced By: glNET Software
// File Creation Date: 09/20/1999
// Date Last Modified: 05/25/2001
// Copyright (c) 2001 glNET Software
// ----------------------------------------------------------- //
// ------------- Program Description and Details ------------- //
// ----------------------------------------------------------- //
/*
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA
The program is used to test gxSerialCommServer class.
*/
// ----------------------------------------------------------- //
#include <iostream.h>
#include <stdlib.h>
#include <string.h>
#include "scomserv.h"
int ReadBlock(gxSerialCommServer *server, gxBlockHeader &gx)
{
cout << "Reading a raw block of data" << endl;
char *buf = new char[(__ULWORD__)gx.block_length];
if(server->ReadBlock(buf, gx) != 0) return 1;
buf[(__ULWORD__)gx.block_length] = 0;
cout << buf;
cout << server->BytesRead() << " bytes received." << endl;
delete buf;
return 0;
}
int AnswerRequest(gxSerialCommServer *server, gxBlockHeader &gx)
{
cout << "Client has requested a block" << endl;
char *test_block = "The quick brown fox jumps over the lazy dog \
0123456789\n";
char *buf = new char[(__ULWORD__)gx.block_length];
if(server->ReadBlock(buf, gx) != 0) return 1;
buf[(__ULWORD__)gx.block_length] = 0;
cout << "Client has requested block: " << buf << endl;
delete buf;
cout << "Answering request" << endl;
if(server->WriteBlock((char *)test_block, strlen(test_block)) != 0)
return 1;
return 0;
}
int ChangeBlock(gxSerialCommServer *server, gxBlockHeader &gx)
{
cout << "Received a change block request" << endl;
char *buf = new char[(__ULWORD__)gx.block_length];
if(server->ReadBlock(buf, gx) != 0) return 1;
buf[(__ULWORD__)gx.block_length] = 0;
cout << "Client requested that block \"" << buf << "\" be changed to:"
<< endl << flush;
delete buf;
gxBlockHeader block_header;
if(server->ReadHeader(block_header) != 0) return 1;
char *block = new char[(__ULWORD__)block_header.block_length];
if(server->ReadBlock((char *)block, block_header) != 0) return 1;
cout << "Bytes = " << block_header.block_length << endl;
block[(__ULWORD__)block_header.block_length] = 0;
cout << block << flush;
delete block;
return 0;
}
int AddBlock(gxSerialCommServer *server, gxBlockHeader &gx)
{
cout << "Received an add block request" << endl;
char *block = new char[(__ULWORD__)gx.block_length];
if(server->ReadBlock(block, gx) != 0) return 1;
block[(__ULWORD__)gx.block_length] = 0;
cout << "Client has requested the following block be added:" << endl;
cout << block << flush;
delete block;
return 0;
}
int DeleteBlock(gxSerialCommServer *server, gxBlockHeader &gx)
{
cout << "Received a delete block request" << endl;
char *buf = new char[(__ULWORD__)gx.block_length];
if(server->ReadBlock(buf, gx) != 0) return 1;
buf[(__ULWORD__)gx.block_length] = 0;
cout << "Client has requested block \"" << buf << "\" be deleted" << endl;
delete buf;
return 0;
}
int main(int argc, char **argv)
{
if(argc < 2) {
cout << "GX Serial port server" << endl;
cout << "Usage: " << argv[0] << " device name [baud rate]" << endl;
return 1;
}
gxSerialCommServer server;
int baud_rate = 9600;
if(argc > 2 && atoi(argv[2])) baud_rate = atoi(argv[2]);
cout << "Initializing the GX serial port server..." << endl;
int rv = server.InitCommServer(argv[1], baud_rate);
if(rv != gxSerialComm::scomm_NO_ERROR) {
cout << server.SerialCommExceptionMessage() << endl;
return 1;
}
cout << "Opening GX serial port server on " << argv[1] << endl;
while(1) { // Block until the next read.
// Wait for a block header
gxBlockHeader gx;
if(server.ReadHeader(gx) != 0) {
cout << server.SerialCommExceptionMessage() << endl;
return 1;
}
cout << "Client connecting on " << argv[1] << endl;
// Read the status byte to determine what to do with this block
__ULWORD__ block_status = gx.block_status;
__SBYTE__ status = (__SBYTE__)((block_status & 0xFF00)>>8);
switch(status) {
// Process each block of data
case gxAcknowledgeBlock:
cout << "Received an acknowledge block command" << endl;
cout << "Sending acknowledgment" << endl;
if(server.WriteAckBlock() != 0)
cout << server.SerialCommExceptionMessage() << endl;
break;
case gxAddRemoteBlock:
if(AddBlock(&server, gx) != 0)
cout << server.SerialCommExceptionMessage() << endl;
break;
case gxChangeRemoteBlock:
if(ChangeBlock(&server, gx) != 0)
cout << server.SerialCommExceptionMessage() << endl;
break;
case gxRequestBlock:
if(AnswerRequest(&server, gx) != 0)
cout << server.SerialCommExceptionMessage() << endl;
break;
case gxDeleteRemoteBlock:
if(DeleteBlock(&server, gx) != 0)
cout << server.SerialCommExceptionMessage() << endl;
break;
case gxSendBlock :
if(ReadBlock(&server, gx) != 0)
cout << server.SerialCommExceptionMessage() << endl;
break;
case gxCloseConnection :
cout << "Client sent a close connection command" << endl;
break;
case gxKillServer:
cout << "Client shutdown the server" << endl;
server.Close();
return 0;
default:
cout << "Received bad block command from client" << endl;
break;
}
}
server.Close();
cout << "Exiting..." << endl;
return 0;
}
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