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6 years, 5 months ago.
TCP Socket can not reconnect
there is a fault when I reconnect a server an send data to MCU used my pc. The frist time, it's OK. Why? here is the code section:
while(1) { /* Can handle x simultaneous connections */ if(srv.listen(1) == 0) { srv.accept(&client_sock, &client_addr); printf("Accepted %s:%d\n", client_addr.get_ip_address(), client_addr.get_port());
Thread::wait(10000); tmpcount = client_sock.recv(buffer, 1024); client_sock.TCPSocket(); printf("closed \n"); } }
1 Answer
6 years, 5 months ago.
Hi, in second run in your loop you want again accept a client without close the client from first loop. So your server waiting for new connection but your client is still connected...
Your code
while(1) {
/* Can handle x simultaneous connections */
if(srv.listen(1) == 0) {
srv.accept(&client_sock, &client_addr);
printf("Accepted %s:%d\n", client_addr.get_ip_address(), client_addr.get_port());
Thread::wait(10000);
tmpcount = client_sock.recv(buffer, 1024);
client_sock.TCPSocket(); // close need here
printf("closed \n");
}
}
This is a standart way.
New pseudo code
while(1) {
printf("\nWait for new connection...\n");
srv.accept(&client_sock, &client_addr);
printf("Accepted %s:%d\n", client_addr.get_ip_address(), client_addr.get_port());
while(1) {
tmpcount = client_sock.recv(buffer, 1024);
if (tmpcount <= 0) break;
printf("Received message from Client :'%s'\n",buffer);;
}
client_sock.close();
}
It's only my idea...