Socket main() working, Class is not

[gvanto]

I've been following Beej's Guide to network programming, (which is really great) and when implementing his streaming socket server ( http://beej.us/guide/bgnet/output/html/singlepage/bgnet.html#simpleserver[^] ) it works just fine. To test it I opened a Konsole (using Kubuntu) and ran: pacific@mainbox:~$ telnet localhost 3490 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. Hello, world!Connection closed by foreign host. However, when trying to make a class out of the above code, as shown below, I get a "accept: Bad file descriptor" error, repeatedly. Not sure if these two functions (which are not part of the class) have anything to do with it: void sigchld_handler(int s); void *get_in_addr(struct sockaddr *sa); Help on this would be much appreciated !! Gvanto Sources also here: http://www.sharedigest.com/socketserver.tar.gz[^] main (WLFeeder.cpp): #include #include #include #include #include #include #include #include #include #include "SocketServer.h" #define DO_MAIN 1 using namespace std; using namespace wlns; #ifdef DO_MAIN int main(int argc, char *argv[]) { SocketServer *s = new SocketServer(); if( s->initAddrInfo() != SUCCESS ) { cout << "Error initializing address " << endl; exit(1); } if( s->initBind() != SUCCESS ) { cout << "Error initializing bind " << endl; exit(1); } if( s->initListen() != SUCCESS ) { cout << "Error initializing listen " << endl; exit(1); } if( s->clearDeadProcesses() != SUCCESS ) { cout << "Error clearing dead processes " << endl; exit(1); } if( s->listenForConnections() != SUCCESS ) { cout << "Error in listening for connections " << endl; exit(1); } return 0; } #endif SocketServer.h: /* * SocketServer.h * * Created on: 11/02/2009 * Author: pacific * * Generic, extendable socket-managing class handling * network communications via sockets */ #ifndef SOCKETSERVER_H_ #define SOCKETSERVER_H_ #in

[Stuart Dootson]

The one thing I notice is that your forked process doesn't exit (unlike the equivalent code in Beej's guide)?

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

[gvanto]

Thanks a million Stuart, that did it ! I thought exit(0) was only to exit from a main routine or something, did not realize it would exit from the if( ) { } routine ... Gvanto

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[Stuart Dootson]

gvanto wrote:

exit(0) was only to exit from a main routine or something

No, it exits the current process - of course, which process is 'current' can get confusing with *nix, as the fork function creates a new process by duplicating the caller, so you have to track the two code paths, the parent process (where fork returns the child PID) and the child process (wehere fork returns zero). In some ways it's easier to work with than Win32's CreateProcess, in other ways not.

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

[gvanto]

Ah ic, yeah that's what kind of got me I think. Not quite got the hang of these socket processes (and I'm pretty new to C++) so still got a way to go. and a loooooooooong way before I start coding c++ in windows ! :-) Thanks again for the help Stuart, much appreciated ! Best, gvanto

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