64 lines
2.0 KiB
C++
64 lines
2.0 KiB
C++
/*
|
|
* blockingUDPConnector.cpp
|
|
*
|
|
* Created on: Dec 27, 2010
|
|
* Author: Miha Vitorovic
|
|
*/
|
|
|
|
/* pvAccess */
|
|
#include "blockingUDP.h"
|
|
#include "remote.h"
|
|
|
|
/* EPICSv3 */
|
|
#include <errlog.h>
|
|
#include <osiSock.h>
|
|
|
|
/* standard */
|
|
#include <sys/types.h>
|
|
#include <sys/socket.h>
|
|
|
|
namespace epics {
|
|
namespace pvAccess {
|
|
|
|
Transport* BlockingUDPConnector::connect(TransportClient* client,
|
|
ResponseHandler* responseHandler, osiSockAddr& bindAddress,
|
|
short transportRevision, int16 priority) {
|
|
|
|
errlogSevPrintf(errlogInfo, "Creating datagram socket to: %s",
|
|
inetAddressToString(bindAddress).c_str());
|
|
|
|
SOCKET socket = epicsSocketCreate(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
|
|
if(socket==INVALID_SOCKET) {
|
|
char errStr[64];
|
|
epicsSocketConvertErrnoToString(errStr, sizeof(errStr));
|
|
errlogSevPrintf(errlogMajor, "Error creating socket: %s", errStr);
|
|
return 0;
|
|
}
|
|
|
|
int optval = _broadcast ? 1 : 0;
|
|
int retval = ::setsockopt(socket, SOL_SOCKET, SO_BROADCAST, &optval, sizeof(optval));
|
|
if(retval<0)
|
|
{
|
|
errlogSevPrintf(errlogMajor, "Error setting SO_BROADCAST: %s", strerror(errno));
|
|
epicsSocketDestroy (socket);
|
|
return 0;
|
|
}
|
|
|
|
// set SO_REUSEADDR or SO_REUSEPORT, OS dependant
|
|
if (_reuseSocket)
|
|
epicsSocketEnableAddressUseForDatagramFanout(socket);
|
|
|
|
retval = ::bind(socket, (sockaddr*)&(bindAddress.sa), sizeof(sockaddr));
|
|
if(retval<0) {
|
|
errlogSevPrintf(errlogMajor, "Error binding socket: %s", strerror(errno));
|
|
epicsSocketDestroy (socket);
|
|
return 0;
|
|
}
|
|
|
|
// sockets are blocking by default
|
|
return new BlockingUDPTransport(responseHandler, socket, bindAddress, transportRevision);
|
|
}
|
|
|
|
}
|
|
}
|