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geant4/source/visualization/VRML/src/FRClient.cc
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2016-06-09 15:58:43 +02:00

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//
// ********************************************************************
// * License and Disclaimer *
// * *
// * The Geant4 software is copyright of the Copyright Holders of *
// * the Geant4 Collaboration. It is provided under the terms and *
// * conditions of the Geant4 Software License, included in the file *
// * LICENSE and available at http://cern.ch/geant4/license . These *
// * include a list of copyright holders. *
// * *
// * Neither the authors of this software system, nor their employing *
// * institutes,nor the agencies providing financial support for this *
// * work make any representation or warranty, express or implied, *
// * regarding this software system or assume any liability for its *
// * use. Please see the license in the file LICENSE and URL above *
// * for the full disclaimer and the limitation of liability. *
// * *
// * This code implementation is the result of the scientific and *
// * technical work of the GEANT4 collaboration. *
// * By using, copying, modifying or distributing the software (or *
// * any work based on the software) you agree to acknowledge its *
// * use in resulting scientific publications, and indicate your *
// * acceptance of all terms of the Geant4 Software license. *
// ********************************************************************
//
//
// $Id: FRClient.cc,v 1.7 2006/06/29 21:25:49 gunter Exp $
// GEANT4 tag $Name: geant4-09-02 $
//
// FRClient.cc
// FukuiRenderer Client
// Yasuhide Sawada & Satoshi Tanaka
//=================//
#ifndef WIN32
//=================//
//=================//
#ifdef G4VIS_BUILD_VRML_DRIVER
//=================//
#include "G4ios.hh"
#include <sys/time.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#include <stdio.h>
#include "FRClient.h"
FRClient::FRClient()
{
fd = -1;
create();
}
FRClient::~FRClient()
{
close();
}
int FRClient::create()
{
/* stream socket */
fd = socket(AF_INET, SOCK_STREAM, 0);
if (fd < 0)
fputs("error: socket.\n", stderr);
return fd;
}
int FRClient::connect(const char *hostname, int port_)
{
// local variables
struct sockaddr_in sa;
struct hostent *hp;
// set port ( sa.sin_family, sa.sin_port )
port = port_; // Store port number to data member
memset( (char *)&sa, '\0', sizeof(sa)) ;
sa.sin_family = AF_INET;
sa.sin_port = htons(port);
// set server host ( sa.sin_addr )
if (hostname == NULL) {
hostname = "localhost";
// reset arg
}
hp = gethostbyname(hostname) ;
if ( !hp ) {
G4cerr << "ERROR: gethostbyname() failed" << G4endl;
return -1;
}
memcpy( (char * )&sa.sin_addr, (char * )hp->h_addr, hp->h_length );
// make connection to server
if (::connect(fd, (struct sockaddr *)&sa, sizeof(sa)) == -1) {
fputs("error: connect\n", stderr);
return -1;
}
// return file descripter (data member)
return fd;
}
int FRClient::send(const char *sendbuf)
{
int len = strlen(sendbuf);
if (::send(fd, sendbuf, len, 0) < 0) {
fputs("error: Send()\n", stderr);
len = -1;
}
return len;
}
int FRClient::receive(char *recvbuf)
{
int len;
memset(recvbuf, '\0', FRSendLength + 1);
len = ::recv(fd, recvbuf, FRSendLength, 0);
if(len < 0) {
fputs("error: Receive()\n", stderr);
len = -1;
}
return len;
}
int FRClient::close()
{
/*
shutdown :argument '2' means shutdown both send and receive.
*/
if (::shutdown(fd, 2) < 0) {
fputs("error: shutdown\n", stderr);
return -1;
}
::close(fd);
return 0;
}
#endif //G4VIS_BUILD_VRML_DRIVER
#endif // WIN32