how do I know if a server (on the box) is running?

[jaro]

Hi again,

Lately I'm doing socket programming, as far I can tell it works fine.
the problem is that how do I know if a server (on the box) is running.
The gethostbyname() will only detect if a IP address exist or is currently running.

The only idea that I have is, after gethostbyname() and a successful connect() my program will send some sort of message, then the (workspace)server will then send a valid response. If no valid response is recieve then the process will start all over again.

is this the way to go, just to know if a (workspace)server is running or there is another way ?

regards,
jaro

[teknomage1]

Do you have a system function to get search the OS's process table ie the 'ps' command on Unix?

[jaro]

I'm using Windows, my OS is win2K and I'm coding using MVC.

[AssKoala]

getaddrinfo() can do it, though not necessarily the best way.

http://msdn.microsoft.com/library/de...addrinfo_2.asp

[kyoryu]

You want to tell if you've successfully connected or not, correct?

1) connect() will return < 0 if it fails.
2) if you select on a socket, and it returns readable but has no data, it is closed. It helps to think of select not as determining "do I have data available", but "will I block if I do this?" A closed socket won't block, so it will always return as readable and writable.