CODEWITHSUNDEEP
c++socketsconnectionsleep
jamespick
jamespick

Reputation: 1978

C++ sleep() breaks program

I am trying to connect to a computer through a socket in c++. Basically what this code should do is try to connect, and if it cant connect, it should wait 3 seconds and try again. 

while (true) {
    if (connect(sock, (struct sockaddr *) &echoserver, sizeof(echoserver)) >= 0)
    {
        break;
    }
    cout << "Connection failed!";
    sleep(3);
}

What the code does when its running is it will connect if it can, but if it can't, the cout never gets called and sleep never gets called either. When sleep is not there, the program works and continually tries to connect to the socket but there is no delay so it wouldn't connect anyway. I really need the delay to work.

Could anyone please help?

Upvotes: 0

Views: 577

Answers (1)

David Schwartz
David Schwartz

Reputation: 182779

Once the connect fails, the socket refers to the failed connection. You can no longer use it to connect to anything. You need to close the existing socket and allocate a new one. This would have been much easier to diagnose if you had reported the error in the cout statement. (See docs for strerror and errno.)

Upvotes: 4

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