Perl线程研究 thread

我就直接贴代码了。没做什么注释,因为还在修改,目前还有点不太理解,跑去看了下云舒的代码,感觉那个应该有点启发。

回头好好修改下。这些多线程模块还有点不太熟悉,主要跟进程弄乱了。

得好好琢磨下,如果可以改成别的就更爽了。不过他们都说perl多线程不靠谱。。汗。。

#!/usr/bin/perl
use Net::Ping;
use threads;
use threads::shared;

system('clear');
print "please set the IP(C):";
chomp($ip=<STDIN>);
print "StartIP:";
chomp($ip_start=<STDIN>);
print "EndIP:";
chomp($ip_end=<STDIN>);

$p=Net::Ping->new();
my @ip_group;
my $min_thread:shared=0;
my $max_thread=100;

sub ip_count{
  while($ip_start != $ip_end){
    push @ip_group,("$ip."."$ip_start");
    $ip_start++;
  }
  return @ip_group;
}
while( 1 )
{
   &ip_count;
   if( $min_thread <= $max_thread )
   {
    my $thread=threads->new(\&slep_ping,shift(@ip_group));
        $min_thread++;
   }
   else
   {
    while( $min_thread > $max_thread ){
           sleep(0.5);
        }
   }

   foreach $thread ( threads->list( threads::all ) )
   {
     if( $thread->is_joinable() )
        {
            $thread->join;
        }
   }
}

foreach $thread ( threads->list(threads::all) )
{
    $thread->join();
}

sub slep_ping{
  local($host_ip)=shift;
  if($p->ping($host_ip))
  {
     print "$host_ip is access\n";
  }
  $min_thread--;
  $p->close();
}
原文地址:https://www.cnblogs.com/xiaoCon/p/2931791.html