man Proc::ProcessTable () - Perl extension to access the unix process table
NAME
Proc::ProcessTable - Perl extension to access the unix process table
SYNOPSIS
use Proc::ProcessTable;
$p = new Proc::ProcessTable( 'cache_ttys' => 1 ); @fields = $p->fields; $ref = $p->table;
DESCRIPTION
Perl interface to the unix process table.
METHODS
- new
- Creates a new ProcessTable object. The constructor can take one flag: cache_ttys causes the constructor to look for and use a file that caches a mapping of tty names to device numbers, and to create the file if it doesn't exist (this file is /tmp/TTYDEVS by default). This feature requires the Storable module.
- fields
- Returns a list of the field names supported by the module on the current architecture.
- table
- Reads the process table and returns a reference to an array of Proc::ProcessTable::Process objects. Attributes of a process object are returned by accessors named for the attribute; for example, to get the uid of a process just do: $process->uid The priority and pgrp methods also allow values to be set, since these are supported directly by internal perl functions.
EXAMPLES
# A cheap and sleazy version of ps use Proc::ProcessTable;
$FORMAT = "%-6s %-10s %-8s %-24s %s\n";
$t = new Proc::ProcessTable;
printf($FORMAT, "PID", "TTY", "STAT", "START", "COMMAND");
foreach $p ( @{$t->table} ){
printf($FORMAT,
$p->pid,
$p->ttydev,
$p->state,
scalar(localtime($p->start)),
$p->cmndline);
}
# Dump all the information in the current process table use Proc::ProcessTable;
$t = new Proc::ProcessTable;
foreach $p (@{$t->table}) {
print "--------------------------------\n";
foreach $f ($t->fields){
print $f, ": ", $p->{$f}, "\n";
}
}
CAVEATS
Please see the file README in the distribution for a list of supported operating systems. Please see the file PORTING for information on how to help make this work on your OS.
AUTHOR
D. Urist, durist@frii.com