Source code of Windows XP (NT5)
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#-----------------------------------------------------------------
package WaitProc;
#
# Copyright (c) Microsoft Corporation. All rights reserved.
#
#
# Version: 1.00 08/16/2001 : TSanders Initial design
# 1.01 09/16/2001 : SuemiaoR Add functions for dependent processes
#-----------------------------------------------------------------
$VERSION = '1.00';
use strict;
use lib $ENV{ "RazzleToolPath" };
use lib $ENV{ "RazzleToolPath" }. "\\PostBuildScripts";
use Logmsg;
use Win32::Process;
###-----------------------------------------------------------------//
sub wait_proc($@)
{
my ( $maxProc, @cmdLine ) = @_;
my ( @hProcList, $i, $hProc, $iProc, $pExitCode, $k, $x );
my ( @mCmds, %holdCmds, $slot, $bitSlot );
my ( $extSlot, @extCmd );
@hProcList = ();
if( $maxProc < 1 ) { $maxProc = $ENV{NUMBER_OF_PROCESSORS} * 2; }
$slot = 0;
$extSlot = 0;
$bitSlot = 0;
for ($i=0; $i < @cmdLine; $i++)
{
$slot = ($i % $maxProc) if( $i < $maxProc && !$extSlot );
@mCmds = split( /\&/, $cmdLine[$i] );
$hProc = create_proc($mCmds[0]);
if($hProc)
{
logmsg("Executing Slot $slot -[ $mCmds[0]]");
}
else
{
errmsg("Failed to open process for $mCmds[0]");
}
$hProcList[$slot] = $hProc;
$holdCmds{$slot} = $mCmds[1] if( $mCmds[1] );
$bitSlot |= ( 1 << $slot );
next if( ($i+1) < $maxProc && ($i+1) < @cmdLine );
#####Start Virus Scan
if( @extCmd && $extSlot < $maxProc )
{
for( $k=$maxProc; $k<( $maxProc*2); $k++)
{
last if( !(( $bitSlot >> $k) &1) );
}
if( $k < ( $maxProc*2) )
{
$cmdLine[$i] = shift( @extCmd );
$slot = $k;
++$extSlot;
--$i;
next;
}
}
while(1)
{
for($iProc = 0; $iProc < ($maxProc*2); $iProc++)
{
next if( !( ($bitSlot >> $iProc ) & 1 ) );
eval{
last if $hProcList[$iProc]->Win32::Process::Wait(1000);
};
if ($@){errmsg("Wait() failed on $iProc") && last;}
}
next if( $iProc == ($maxProc*2) );
$hProcList[$iProc]->Win32::Process::GetExitCode($pExitCode);
logmsg("Completed slot $iProc - ExitCode: $pExitCode");
return 0 if( $pExitCode );
$bitSlot &= ( ~( 1 << $iProc ) );
last if( !$bitSlot && !$holdCmds{$iProc} && !@extCmd );
$slot = $iProc;
#####Free slot from main command - copy
if( $iProc < $maxProc )
{
if( $holdCmds{$iProc} )
{
if( ($i+1) < @cmdLine )
{
push( @extCmd, $holdCmds{$iProc} );
$holdCmds{$iProc} = "";
}
else
{
$cmdLine[$i] = $holdCmds{$iProc};
$holdCmds{$iProc} = "";
--$i;
}
last;
}
last if( ($i+1) < @cmdLine );
}
#####Free slot from depending command - virus scan
else
{
if( !@extCmd )
{
--$extSlot;
next;
}
#####Prepare next Virus Command in queue
$cmdLine[$i] = shift( @extCmd );
--$i;
last;
}
}
}
return 1;
}
###-----------------------------------------------------------------//
sub create_proc($){
my($hProc);
my($cmd) = @_;
Win32::Process::Create($hProc, "$ENV{windir}\\system32\\cmd.exe", " /c ".$cmd, 0, CREATE_NO_WINDOW, ".")
|| logmsg(Win32::FormatMessage(Win32::GetLastError()));
return $hProc;
}
#--------------------------------------------------------------//
#Function Usage
#--------------------------------------------------------------//
sub Usage
{
print <<USAGE;
Executes maximum given N processes concurrently in the order of given lists.
Usage: $0 -p p0.cmd -p p1.cmd ... -p pk.cmd [-n N]
-p Process to execute
-n Number of processes to execute at once.
Defaults to %NUMBER_OF_PROCESSORS% *2
-? Displays usage
Examples:
$0 -p:"copy arg1 arg2" -p:"copy arg1 arg2" -p:"copy arg1 arg2"... -n:2
$0 -p:"copy arg1 arg2& scan arg1" -p:"copy arg1 arg2& scan arg1" -p:"copy arg1 arg2& scan arg1"... -n:2
USAGE
exit(1);
}
###-----Cmd entry point for script.-------------------------------//
if (eval("\$0 =~ /" . __PACKAGE__ . "\\.pm\$/i"))
{
use ParseArgs;
my($maxProc, @procs);
parseargs( '?' => \&Usage,
'n:' => \$maxProc,
'p:' => \@procs );
exit ( !wait_proc($maxProc, @procs) );
}
#-------------------------------------------------------------//
=head1 NAME
WaitProc - From a list of given processes, run N simulataneously.
=head1 SYNOPSIS
use WaitProc;
wait_proc( $N, @P );
where $N is the number of processes to run simultaneously and @P is the list of p0, p1,...,pk processes to run
=head1 DESCRIPTION
Take as input a number: $N and list of processes: @P consisting of processes p0, p1 ... pk to execute simultaneously,
at most $N at one time.
If N is < 1 or not defined, N will default to 2 * %Number_of_processors%.
p0, ... ,pk in @P will be of the standard format: "Command1 arg1 arg2 ... argN", "Command2 arg1 arg2 ... argN", ... , "CommandK arg1 arg2 ... argN",
You can create a dependency between multiple process by submitting a single process p as:
"Command1 arg1 arg2 ... argN &Command2 arg1 arg2 ... argN & ... & CommandK arg1 arg2 ... argN"
=head1 NOTES
A process p in @P is executed from a cmd prompt using the following syntax:
cmd.exe /c minimize.exe & p
=head1 AUTHOR
Ted Sanders <[email protected]>
=head1 COPYRIGHT
Copyright (c) Microsoft Corporation. All rights reserved.
=cut
1;