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Solved
TCP Connection Limit ?
Posted on 1998-10-08
I have a UNIX program that loops while trying to make a socket connection. If the connect fails enough I run out of available TCP Connections. Here is a code fragment;
...
do {
connected_I = -1;
/*** OPEN SOCKET TO NT SERVER ***/
fSocket = socket(AF_INET,SOCK_STREAM
if (fSocket == -1)
{
connected_I = 0;
}
/*** CONNECT TO SOCKET ***/
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = GetAddr(ip_addr);
sin.sin_port = htons((u_short)(13011));
if (connect(fSocket,
(struct sockaddr FAR *) &sin,
sizeof(sin))==-1)
{
connected_I = 0;
}
if (!connected_I)
{
shutdown(fSocket,2);
close(fSocket);
sleep(2);
}
} while(!connected_I);
...
Can anyone see anything wrong with this?
Is there a table of some sort in UNIX that gets filled up and only released when my process terminates?
Any help anyone can offer would be great!
...
do {
connected_I = -1;
/*** OPEN SOCKET TO NT SERVER ***/
fSocket = socket(AF_INET,SOCK_STREAM
if (fSocket == -1)
{
connected_I = 0;
}
/*** CONNECT TO SOCKET ***/
sin.sin_family = AF_INET;
sin.sin_addr.s_addr = GetAddr(ip_addr);
sin.sin_port = htons((u_short)(13011));
if (connect(fSocket,
(struct sockaddr FAR *) &sin,
sizeof(sin))==-1)
{
connected_I = 0;
}
if (!connected_I)
{
shutdown(fSocket,2);
close(fSocket);
sleep(2);
}
} while(!connected_I);
...
Can anyone see anything wrong with this?
Is there a table of some sort in UNIX that gets filled up and only released when my process terminates?
Any help anyone can offer would be great!
[X]
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3
4 Comments
Try to insert these codes into your loop:
struct linger socketLinger;
.
socketLinger.l_onoff = 1;
socketLinger.l_linger = 0;
if(setsockopt(fSocket,SOL_
&socketLinger,sizeof(struc
perror("set sock opt error");
return(-1);
}
.
Then it should work. If, it still do not work, then the problem must lay on your NT server. :)
For in my unix-unix network, communication, no problem occured!
struct linger socketLinger;
.
socketLinger.l_onoff = 1;
socketLinger.l_linger = 0;
if(setsockopt(fSocket,SOL_
&socketLinger,sizeof(struc
perror("set sock opt error");
return(-1);
}
.
Then it should work. If, it still do not work, then the problem must lay on your NT server. :)
For in my unix-unix network, communication, no problem occured!
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