pb: ezodf's daemon create zombies

Tuesday 10 February 2009 3:19:57 am

Hi !

My problem is that daemon.php processes creates zombies after each conversion .doc to odt.

Someone has a solution pls ?

"/extension/ezodf/daemon.php" :

<?php
//
//
// Created on: <07-Jul-2005 10:14:34 bf>
//
// SOFTWARE NAME: eZ Publish
// SOFTWARE RELEASE: 4.0.1
// BUILD VERSION: 22260
// COPYRIGHT NOTICE: Copyright (C) 1999-2008 eZ Systems AS
// SOFTWARE LICENSE: GNU General Public License v2.0
// NOTICE: >
//   This program is free software; you can redistribute it and/or
//   modify it under the terms of version 2.0  of the GNU General
//   Public License as published by the Free Software Foundation.
//
//   This program is distributed in the hope that it will be useful,
//   but WITHOUT ANY WARRANTY; without even the implied warranty of
//   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//   GNU General Public License for more details.
//
//   You should have received a copy of version 2.0 of the GNU General
//   Public License along with this program; if not, write to the Free
//   Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
//   MA 02110-1301, USA.
//
//

/*

Needs the following in PHP Configuration

  --enable-cli
  --enable-pcntl
  --enable-sockets

*/

$host = "127.0.0.1";
$port = 9090;
$ooexecutable = "ooffice";
$maxClients = 3;
$display = ':99';


set_time_limit( 0 );

$socket = socket_create( AF_INET, SOCK_STREAM, 0) or die( "Could not create socket\n" );
$result = socket_bind( $socket, $host, $port ) or die( "Could not bind to socket\n" );
$result = socket_listen( $socket, $maxClients ) or die( "Could not set up socket listener\n" );

print( "Started OpenOffice.org daemon\n" );

function convert_to( $sourceFileName, $convertCommand, $destinationFileName )
{
    global $ooexecutable;
    global $display;

    print( "Converting document with $convertCommand\n" );

    switch ( $convertCommand )
    {
        case "convertToPDF":
        case "convertToOOo":
        case "convertToDoc":
        {
            $result = shell_exec( $ooexecutable . " -writer -invisible -display " . $display . " 'macro:///eZconversion.Module1." . $convertCommand . "(\"$sourceFileName\", \"$destinationFileName\")'" );
            echo "$result\n";
        }break;

        default:
        {
            echo "Unknown command $convertCommand";
            return "(1)-Unknown command $convertCommand";
        }break;
    }

    if ( !file_exists( $destinationFileName ) )
    {
        return "(3) - Unknown failure converting document \n $result";
    }

    return true;
}


while ( $spawn = socket_accept( $socket ))
{
    print( "got new connection\n" );
    $pid = pcntl_fork();
    if ( $pid != 0)
    {
        // In the main process
        socket_close( $spawn );
    }
    else
    {
        // We are in the forked child process
        socket_write( $spawn, "eZ Publish document conversion daemon\n");

        // Parse input
        $input = socket_read( $spawn, 1024 );

        $inputParts = explode( " ", $input );

        $command = trim( $inputParts[0] );
        $fileName = trim( $inputParts[1] );
        $destName = trim( $inputParts[2] );


        if ( file_exists( $fileName ) )
        {
            $result = convert_to( $fileName, $command, $destName );
            if ( !( $result === true ) )
            {
                echo( "Error: $result" );
                socket_write( $spawn, "Error: $result" );
            }
            else
            {
                echo( "Conversion ok. FilePath: $destName" );
                socket_write( $spawn, "FilePath: $destName" );
            }
        }
        else
        {
            echo( "Error: (2)-File not found" );
            socket_write( $spawn, "Error: (2)-File not found" );
        }

        socket_close( $spawn );
        die('Data Recieved on child ' . posix_getpid(). "\n");
    }
}

socket_close( $socket );
?>

Tuesday 10 February 2009 7:46:23 am

I added pcntl_waitpid ($ pid, $ status, WUNTRACED);

...
    if ( $pid != 0)

    {
        // In the main process

        socket_close( $spawn );
	pcntl_waitpid($pid, $status, WUNTRACED);

    }
...

I'll see how it will evolve.