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Which process have a file open

 


perl123soumen
New User

Jun 16, 2011, 2:43 AM

Post #1 of 3 (2342 views)
Which process have a file open Can't Post
Hi;

I have used Linux::Fuser for determining the proceeses using a file.

This module provides information similar to the Unix command 'fuser' about which processes have a particular file open. The way that this works is highly unlikely to work on any other OS other than Linux and even then it may not work on other than 2.2.* kernels. Some features may not work correctly on kernel versions older than 2.6.22.

Thus it is not working in higher kernel version.

Pls. suggest any cpan module or perl function to determine processes using a particular file,so that i can wait for the process to finish to work upn the file.


Regards;

soumen.


miller
User

Jun 16, 2011, 10:59 AM

Post #2 of 3 (2334 views)
Re: [perl123soumen] Which process have a file open [In reply to] Can't Post
Don't double post your questions mate. You've already asked this question:

http://perlguru.com/gforum.cgi?post=57266;

- Miller


perl123soumen
New User

Jun 17, 2011, 5:50 AM

Post #3 of 3 (2311 views)
Re: [miller] Which process have a file open [In reply to] Can't Post
I have found a soln.;

use Unix::Lsof;

my $CheckUser=&CheckFile($file,$DirPathPMTA);

sub CheckFile
{

my ($file,$DirPathPMTA)= @_;

my ($output,$error) = lsof(+D,"$DirPathPMTA");


foreach $key (keys %$output)
{
if(( $output->{$key}->{"command name"} eq "ftp") || ( $output->{$key}->{"command name"} eq "vsftpd"))
{

my ($output,$error) = lsof("+p",$output->{$key}->{"process id"});

foreach $key (keys %$output)
{
for my $files ( @{ $output->{$key}{files} } )
{
if ($files->{"file name"}=~m/$file/s)
{

return $files->{"file name"};

}


}
}
}
}

}



This checks for file access through ftp before prcoessing starts.

Waiting foe enhancement of the code.



Soumen

 
 


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