I'm currently writing a preforking server, but I'm having problems deciding what value to give for the Listen parameter when opening the socket.

The behaviour I want is for incoming connections to be accepted until each child process is busy, but any connections after that should be rejected (i.e. no queueing).

So do I do this: 

my $socket = IO::Socket::INET->new(LocalPort => 12345,
                                   Type      => SOCK_STREAM,
                                   Reuse     => 1,
                                   Listen    => 1 );

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or this: 
my $socket = IO::Socket::INET->new(LocalPort => 12345,
                                   Type      => SOCK_STREAM,
                                   Reuse     => 1,
                                   Listen    => MAX_SERVERS ); 

# MAX_SERVERS = total no. of child processes

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I would guess at the second version, thinking that the socket is a single resource shared by the child processes. But what I don't want to happen is for each child to let MAX_SERVERS requests queue up - for this application some requests can take hours to complete, so it is better to just refuse connections when the server is busy.

Thanks in advance,

JJ

In reply to Behaviour of 'Listen' parameter in socket for preforking server by jj808

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