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#!/usr/bin/perl | |
use warnings; | |
use strict; | |
use threads; | |
use threads::shared; | |
use Thread::Semaphore; | |
use Fcntl qw(:flock SEEK_END); | |
sub lockf { | |
my ($fh) = @_; | |
flock($fh, LOCK_EX) or die "Cannot lock file - $!\n"; | |
seek($fh, 0, SEEK_END) or die "Cannot seek - $!\n"; | |
} | |
sub unlockf { | |
my ($fh) = @_; | |
flock($fh, LOCK_UN) or die "Cannot unlock file - $!\n"; | |
} | |
my $infile:shared = './commits.txt'; | |
my $outfile:shared = './checkpatch_out.txt'; | |
my $max_threads = 30; | |
open(IF, '<', $infile) or die $!; | |
open(my $OF, '>', $outfile) or die $!; | |
my $c :shared = 0; | |
my $running :shared = 1; | |
my $sem = Thread::Semaphore->new($max_threads); | |
my $active :shared = 0; | |
# Disable buffering | |
$|++; | |
# show progress | |
my $progresst = threads->create(\&progress); | |
$progresst -> detach; | |
while(<IF>){ | |
# extracts the first word from line | |
my $hash = (split / /, $_)[0]; | |
# use semaphores to restrict thread creation | |
$sem->down(); | |
my $thread = threads->create(\&run, $hash); | |
$thread->detach; | |
lock($active); | |
$active++; | |
} | |
while($active) | |
{ | |
sleep(1); | |
} | |
sub run { | |
my $hash=$_[0]; | |
my $out = `perl ./scripts/checkpatch.pl --show-types --strict -g $hash`; | |
lockf($OF); | |
print $OF $out."\n"; | |
unlockf($OF); | |
lock($c); | |
lock($active); | |
$c++; | |
$active--; | |
$sem->up(); | |
} | |
sub progress { | |
while($running){ | |
print "Commits processed: ".$c."\n"; | |
sleep(2); | |
} | |
} | |
$running=0; | |
close(IF); | |
close($OF); |
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