166 lines
4.0 KiB
C++
166 lines
4.0 KiB
C++
/* OpenSceneGraph example, osgcluster.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <fcntl.h>
|
|
#include <sys/types.h>
|
|
#if defined (WIN32) && !defined(__CYGWIN__)
|
|
#include <winsock.h>
|
|
#else
|
|
#include <unistd.h>
|
|
#include <sys/uio.h>
|
|
#include <sys/socket.h>
|
|
#include <netinet/in.h>
|
|
#include <netdb.h>
|
|
#include <arpa/inet.h>
|
|
#include <sys/time.h>
|
|
#endif
|
|
#include <string.h>
|
|
|
|
|
|
#include "receiver.h"
|
|
|
|
#include <iostream>
|
|
|
|
Receiver::Receiver( void )
|
|
{
|
|
_port = 0;
|
|
_initialized = false;
|
|
_buffer = 0L;
|
|
}
|
|
|
|
Receiver::~Receiver( void )
|
|
{
|
|
#if defined (WIN32) && !defined(__CYGWIN__)
|
|
closesocket( _so);
|
|
#else
|
|
close( _so );
|
|
#endif
|
|
}
|
|
|
|
bool Receiver::init( void )
|
|
{
|
|
#if defined(WIN32) && !defined(__CYGWIN__)
|
|
WORD version = MAKEWORD(1,1);
|
|
WSADATA wsaData;
|
|
// First, we start up Winsock
|
|
WSAStartup(version, &wsaData);
|
|
#endif
|
|
|
|
if( _port == 0 )
|
|
{
|
|
fprintf( stderr, "Receiver::init() - port not defined\n" );
|
|
return false;
|
|
}
|
|
|
|
if( (_so = socket( AF_INET, SOCK_DGRAM, 0 )) < 0 )
|
|
{
|
|
perror( "Socket" );
|
|
return false;
|
|
}
|
|
#if defined (WIN32) && !defined(__CYGWIN__)
|
|
// const BOOL on = TRUE;
|
|
// setsockopt( _so, SOL_SOCKET, SO_REUSEADDR, (const char*) &on, sizeof(int));
|
|
#else
|
|
int on = 1;
|
|
setsockopt( _so, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
|
|
#endif
|
|
|
|
// struct sockaddr_in saddr;
|
|
saddr.sin_family = AF_INET;
|
|
saddr.sin_port = htons( _port );
|
|
#if defined (WIN32) && !defined(__CYGWIN__)
|
|
saddr.sin_addr.s_addr = htonl(INADDR_ANY);
|
|
#else
|
|
saddr.sin_addr.s_addr = 0;
|
|
#endif
|
|
|
|
if( bind( _so, (struct sockaddr *)&saddr, sizeof( saddr )) < 0 )
|
|
{
|
|
perror( "bind" );
|
|
return false;
|
|
}
|
|
|
|
_initialized = true;
|
|
return _initialized;
|
|
}
|
|
|
|
|
|
void Receiver::setPort( const short port )
|
|
{
|
|
_port = port;
|
|
}
|
|
|
|
void Receiver::setBuffer( void *buffer, const unsigned int size )
|
|
{
|
|
_buffer = buffer;
|
|
_buffer_size = size;
|
|
}
|
|
|
|
void Receiver::sync( void )
|
|
{
|
|
if(!_initialized) init();
|
|
|
|
if( _buffer == 0L )
|
|
{
|
|
fprintf( stderr, "Receiver::sync() - No buffer\n" );
|
|
return;
|
|
}
|
|
|
|
#if defined(__linux) || defined(__FreeBSD__) || defined( __APPLE__ )
|
|
socklen_t
|
|
#else
|
|
int
|
|
#endif
|
|
size = sizeof( struct sockaddr_in );
|
|
|
|
fd_set fdset;
|
|
FD_ZERO( &fdset );
|
|
FD_SET( _so, &fdset );
|
|
|
|
struct timeval tv;
|
|
tv.tv_sec = 0;
|
|
tv.tv_usec = 0;
|
|
|
|
#if defined (WIN32) && !defined(__CYGWIN__)
|
|
// saddr.sin_port = htons( _port );
|
|
recvfrom( _so, (char *)_buffer, _buffer_size, 0, (sockaddr*)&saddr, &size );
|
|
// recvfrom(sock_Receive, szMessage, 256, 0, (sockaddr*)&addr_Cli, &clilen)
|
|
int err = WSAGetLastError ();
|
|
int *dum = (int*) _buffer;
|
|
|
|
while( select( _so+1, &fdset, 0L, 0L, &tv ) )
|
|
{
|
|
if( FD_ISSET( _so, &fdset ) )
|
|
{
|
|
recvfrom( _so, (char *)_buffer, _buffer_size, 0, (sockaddr*)&saddr, &size );
|
|
}
|
|
}
|
|
#else
|
|
recvfrom( _so, (caddr_t)_buffer, _buffer_size, 0, 0, &size );
|
|
while( select( _so+1, &fdset, 0L, 0L, &tv ) )
|
|
{
|
|
if( FD_ISSET( _so, &fdset ) )
|
|
{
|
|
recvfrom( _so, (caddr_t)_buffer, _buffer_size, 0, 0, &size );
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|