I've written a Server socket program in C++, In my program Device Id is a unique one through which I accept the client connection. My code has to pass the below two test case.
1. If a client the the same device is connceted already, i've to reject the new conncetion.
2. If i remove the client network cable and try to conncet again it has to connect.
Can any one tell me how to do this?.
the major problem that i'm facing is in the 1st test case. The Function that i've written is
Code:
bool ValidatePrinterConnection(string sDeviceName)
{
char cMessage[1024];
memset(cMessage,0,1024);
string sRecvData;
struct fd_set readfds;
struct timeval time;
time.tv_sec = 20; time.tv_usec = 0;
bool bret = true;
int iSocketDesc = m_pConfig->GetSocketDesc1( m_sDeviceName ); //this will return the previous socket desc of the connceted client
for ( int i = 0; (i < 3 && bret == true) ; i++)
{
if ( iSocketDesc == 0 )
{
return false;
}
int iStatus=send(iSocketDesc,"R U connceted",100,0); // test data
if ( iStatus > 0 )
{
FD_ZERO(&readfds);
FD_SET(iSocketDesc, &readfds);
int iRetcode = select(iSocketDesc + 1 , &readfds,(fd_set*)NULL, (fd_set*)NULL, &time);
if ( iRetcode < 0 )
{
bret = false;
}
if ( iRetcode == 0)
{
bret = true;
}
if ( iRetcode == 1 )
{
bret = true;
}
}
else
{
bret = false;
}
}
return bret;
}
the above code is working fine in few time and giving false information in lot of times. Can any one tell me how to do it in a effective manner?
thanks in advance..
vijay
Last edited by pludi; 12-14-2009 at 03:03 AM..
Reason: code tags, please...
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