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Full Discussion: How to timeout and proceed in perl?
Top Forums Shell Programming and Scripting How to timeout and proceed in perl? Post 302661199 by Arun_Linux on Monday 25th of June 2012 03:23:21 AM
Old 06-25-2012
Java How to timeout and proceed in perl?
I'm writing a small socket program (UDP) to communicate between two servers.
Problem is, I dont know how to implement time out hence my script keeps on waiting for the peer response.


Code:
#!/usr/bin/bash
use IO::Socket::INET;
$|=1;
$socket=new IO::Socket::INET->new(LocalPort=>5001,
						    Proto=>'udp',
						    timeout=>5);
print "\nUDPServer Waiting for client on port 5001 and will timeout in 5 secs";
$socket->recv($recieved_data,1024);
print "\nReceived data $recieved_data \n \n";

Here if there is no message received the script keeps on waiting forever..

I couldnt understand the use of timeout here (i guess its for udp). Googling for this issue redirects me to select() and alarms, where im stuck with my little knowledge in perl.
 

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LEARN ABOUT DEBIAN

net::server::proto::udp

Net::Server::Proto::UDP(3pm)				User Contributed Perl Documentation			      Net::Server::Proto::UDP(3pm)

NAME

       Net::Server::Proto::UDP - Net::Server UDP protocol.

SYNOPSIS

       See Net::Server::Proto.

DESCRIPTION

       Protocol module for Net::Server.  This module implements the SOCK_DGRAM socket type under INET (also known as UDP).  See
       Net::Server::Proto.

PARAMETERS

       The following paramaters may be specified in addition to normal command line parameters for a Net::Server.  See Net::Server for more
       information on reading arguments.

       udp_recv_len
	   Specifies the number of bytes to read from the UDP connection handle.  Data will be read into $self->{'server'}->{'udp_data'}.  Default
	   is 4096.  See IO::Socket::INET and recv.

       udp_recv_flags
	   See recv.  Default is 0.

       udp_broadcast
	   Default is undef.

QUICK PARAMETER LIST

	 Key		   Value		    Default

	 ## UDP protocol parameters
	 udp_recv_len	   d+			    4096
	 udp_recv_flags    d+			    0
	 udp_broadcast	   bool 		    undef

INTERNAL METHODS

       "object"
	   Returns an object with parameters suitable for eventual creation of a IO::Socket::INET object listining on UDP.

       "connect"
	   Called when actually binding the port.  Handles default parameters before calling parent method.

LICENCE

       Distributed under the same terms as Net::Server

perl v5.14.2							    2012-05-29					      Net::Server::Proto::UDP(3pm)
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