CODEWITHSUNDEEP
phpperldaemon
raffaellopaletta
raffaellopaletta

Reputation: 99

How to start-stop perl daemon from php

I need to control (start\stop\restart) a perl daemon from a web application (php). Daemon starts (and run) correctly when I use my init script (/etc/init.d/foodaemon start (works fine) ) from command line, but doesn't works (daemon is down but pid file is created, as if the daemon died after its creation) when I try to launch from application. In my /etc/sudoers, I added

apache  ALL = NOPASSWD: /etc/init.d/foodaemon

In my php script,

$cmd = "/usr/bin/sudo /etc/init.d/foodaemon start";                             
exec($cmd,$out,$ret);

I have all permissions. The perl script is

#!/usr/bin/perl
use strict;
use warnings;
use Proc::Daemon;
Proc::Daemon::Init;

my $continue = 1;
$SIG{TERM} = sub { $continue = 0 };

close STDIN;
open STDERR,">>/tmp/mylog";
print "My pid: $$\n";
close STDOUT;

while ($continue) {

        # ... what I need        
}

Upvotes: 4

Views: 603

Answers (1)

raffaellopaletta
raffaellopaletta

Reputation: 99

SOLVED... There was an error in my init.d script, or rather

case "$1" in
    start)
        if [ -z "$(pgrep $DAEMON)" ]
        then

            # DAEMON is not running                         
            printf "%-50s" "Starting $NAME..."

            cd $DAEMON_PATH
            PID=`$DAEMON > /dev/null 2>&1 & echo $!`

            #echo "Saving PID" $PID " to " $PIDFILE
            if [ -z $PID ]; then
                printf "%s\n" "Fail"

I did not have permission to do

cd $DAEMON_PATH

so, I update as follow

 #cd $DAEMON_PATH
 PID=`$DAEMON_PATH/$DAEMON > /dev/null 2>&1 & echo $!`

and It works...Sorry...

Upvotes: 1

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