Date: Thu, 1 Feb 2001 11:17:51 -0700 From: "Justin Booth" <jbooth@ccbill.com> To: <freebsd-net@freebsd.org> Subject: Socket Code problem. Message-ID: <009901c08c7b$4f5aca30$5200000a@win2000befwze1>
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Hello Freebsd-net,
The following code has a problem with it. After 16000 or so connections
the my tcp connections run out of buffer space, which does not allow me to
make any new TCP connections and the system locks up. an netstat -an
revieles that there are about 100 sockets in TIME_WAIT and an lsof -n shows
about 54000 TCP connections in TCP no PCB, CANTSENDMORE, CANTRECVMORE for
this program. Can someone point me in the right direction for clearing this
up.
/* code snippet
#define DEAMON_PORT 2313
void main(){
sockaddr_in name;
int listen_socket;
// Create Socket
listen_socket = socket(PF_INET, SOCK_STREAM, TCP );
ioctl(listen_socket, SO_REUSEADDR);
if (listen_socket== -1 ){
printf("Socket Failed to Create listening socket\n
exiting\n");
exit (-1);
} else{
printf("Socket Created %d\n",listen_socket);
}
// Create socket info
name.sin_family = PF_INET;
name.sin_addr.s_addr = INADDR_ANY;
name.sin_port = htons(DEAMON_PORT);
//Bind Socket
if ( bind(listen_socket, (struct sockaddr *) &name, sizeof(name))
== -1){
printf("Socket could not be bound\n");
exit(-1);
}
// Listen on socket
if (listen(listen_socket, 5) == -1){
printf("Error Listening\n");
exit(-1);
}
while(1){
sockaddr incomming;
int in_sock;
int in_length;
int pid;
in_length = sizeof(incomming);
// Accept incomming socket
in_sock = accept(listen_socket, &incomming, &in_length);
printf("open:%d\n",in_sock);
if (in_sock == -1){
internal_log("Error Accepting\n");
exit(-1);
}
pid = fork();
// Fork a thread
if (pid == 0){
//printf("master Thread alive looping to listen\n");
} else {
//Close the Socket
printf("close %s\n", in_sock);
shutdown(in_sock,2);
close(in_sock);
exit(0);
}
}
}
end code snippet */
Greatly Appreciated,
Justin Booth
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