where HAPROXY_LISTENER_NAME is a variable with value "search-engine" so the above variable HAPROXY_LISTENER_PORT should evaluate to this:
OK, but this would only make sense if "search-engine" would be a variable with some content. This is not the case (and can't be, see above), so i still do not understand how this eval-construct came to pass.
Could you please explain:
where your values come from (say: a file, a network stream, whatever)
what you want to accomplish (in terms of goals, not techniques)
I am sure we could suggest a better method to accomplish what you want to do then what you came up with right now.
Hi
i have the following code:
if(($line!=1) and (@field!='\$')){
print ( "\nTRY TO CONNECT TO DATABASE................\n");
my $dbh = DBI->connect($dsn, $user, $pass);
print ("CONNECTED TO DATABASE\n");
eval
... (1 Reply)
how can I find cpu usage memory usage swap usage and
I want to know CPU usage above X% and contiue Y times and memory usage above X % and contiue Y times
my final destination is monitor process
logical volume usage above X % and number of Logical voluage above
can I not to... (3 Replies)
Help !!
First, Thanks in Advance
Here is what I have
I have an environment Variable, let's call it v_VALUE.
v_VALUE="\$ORACLE_HOME/bin" Hence, the location is ORACLE_HOME is not evaluated. ORACLE_HOME happens to be /app/oracle/product/10.1.2
I need a method of returning the... (1 Reply)
Hi Gurus,
I am having 2 parameters as below
parm1=value1
parm2=parm1
I want to evaluate parm1 value using eval echo \$$parm2 and later i want to assign this value to other variable which i will be using in if statement like :
if ]; then
do this.......
fi
could you please suggest... (5 Replies)
Hi all,
Can you please tell me the command, with which one can know the amount of space a specific directory has used.
df -k . ---> Displays, the amount of space allocated, and used for a directory.
du -k <dir name> - gives me the memory used of all the files inside <dir>
But i... (2 Replies)
I have file called myfile which has the text "myserver" in it. I need to have a command to ping "myserver". How would I do that?
I tried
when I type at the terminal I get the output as . How do I do something like a ?
thanks,
Nick (5 Replies)
Hi all,
some small script with eval turned me to crazy.
my OS is linux
Linux s10-1310 2.6.16.53-0.8.PTF.434477.3.TDC.0-smp #1 SMP Fri Aug 31 06:07:27 PDT 2007 x86_64 x86_64 x86_64 GNU/Linux
below script works well
#!/bin/bash
eval ssh remotehost date
eval ssh remotehost ls
below... (1 Reply)
Hi All,
I read the above written code (perl code) in another perl script and evaluates this code for each line of text file,but using exit statement in code make this not to work and i could not get the desired results. However if i use return it works fine. I just need to know why it doesn't... (1 Reply)
anyone has any info on why this is complaining???
vivek@vivek-c5e55ef2e ~/TAC
$ zoneCounter=1
vivek@vivek-c5e55ef2e ~/TAC
$ optUsage1=23%
vivek@vivek-c5e55ef2e ~/TAC
$ eval eval echo "<th>Zone $zoneCounter </th><th align=\"left\"> \$optUsage$zoneCounter </th>"
-bash: syntax error... (13 Replies)
Discussion started by: vivek d r
13 Replies
LEARN ABOUT DEBIAN
http::proxy::engine
HTTP::Proxy::Engine(3pm) User Contributed Perl Documentation HTTP::Proxy::Engine(3pm)NAME
HTTP::Proxy::Engine - Generic child process manager engine for HTTP::Proxy
SYNOPSIS
use HTTP::Proxy;
# use the default engine for your system
my $proxy = HTTP::Proxy->new();
# choose one
my $proxy = HTTP::Proxy->new( engine => 'Old' );
DESCRIPTION
The HTTP::Proxy::Engine class is a front-end to actual proxy engine classes.
The role of an engine is to implement the main fork+serve loop with all the required bookkeeping. This is also a good way to test various
implementation and/or try out new algorithms without too much difficulties.
METHODS
new()
Create a new engine. The parameter "engine" is used to decide which kind of engine will be created. Other parameters are passed to the
underlying engine.
This method also implement the subclasses constructor (they obviously do not need the "engine" parameter).
CREATING YOUR OWN ENGINE
It is possible to create one's own engine, by creating a simple subclass of HTTP::Proxy::Engine with the following methods:
start()
This method should handle any initialisation required when the engine starts.
run()
This method is the main loop of the master process. It defines how child processes are forked, checked and killed.
The engine MUST have a run() method, and it will be called again and again until the proxy exits.
$self->proxy->daemon returns the listening socket that can accept() connections. The child must call $self->proxy->serve_connections()
on the returned socket to handle actual TCP connections.
stop()
This optional method should handle any cleanup procedures when the engine stops (typically when the main proxy process is killed).
A subclass may also define a %defaults hash (with "our") that contains the default values for the fields used internaly.
METHODS PROVIDED TO SUBCLASSES
HTTP::Proxy::Engine provides the following methods to its subclasses:
proxy()
Return the HTTP::Proxy object that runs the engine.
max_clients()
Get or set the maximum number of TCP clients, that is to say the maximum number of forked child process.
Some engines may understand a value of 0 as do not fork at all. This is what HTTP::Proxy::Engine::Legacy does.
make_accessors( @names )
Create accessors named after @names in the subclass package. All accessors are read/write. This is a utility method.
This is a class method.
AUTHOR
Philippe "BooK" Bruhat, "<book@cpan.org>".
COPYRIGHT
Copyright 2005, Philippe Bruhat.
LICENSE
This module is free software; you can redistribute it or modify it under the same terms as Perl itself.
perl v5.12.4 2011-07-03 HTTP::Proxy::Engine(3pm)