multithreading - Perl: fork 和填充父数组

Question

免责声明:鉴于今天的硬件已经足够，所以我不必花一会儿时间，因此我可能需要有关以下代码的一些建议。以下也是一个简单示例，而不是实际代码。

my @matched;
my @names = qw/jim john sally/;

foreach my $name (@names) {
   my $pid;
   next if $pid = fork;                                # child birth
   croak "Fork failed: $!" if not defined $pid;        # terminate if child wasn't born

   my $result = `command_to_get_some_list_of_names`;   # sam sue john tyler
   my @list   = split /\s/, $result;

   foreach my $match ( @list ){
      push(@matched,$match) if $name eq $match;        # where want to access parent array
   }

   exit;                                               # child funeral
}

1 while (wait() != -1);                                # wait for children to finish playing

say "Matched: @matched";                               # nothing; not desired, but expected

进行了匹配，并且在 child 中填充了@matched，但是据我所记得，fork创建了父级的副本，而我不知道(不确定是否曾经做过)的是如何访问父级的资源。我认为更简单的方法是在文件系统上创建一个临时文件，但我想避免任何外部操作。
fork是否有替代方法可以提供 native 线程途径？

Answer 1

带有 Forks::Super 选项的 share 使此操作非常简单:

use Carp;
use 5.012;
use Forks::Super;
my @matched;
my @names = qw/jim john sally/;

foreach my $name (@names) {
   my $pid = fork {
     share => [ \@matched ],
     sub => sub {
       #croak "Fork failed: $!" if not defined $pid;

       my $result = "sam sue john tyler";             # sam sue john tyler
       my @list   = split /\s/, $result;

       foreach my $match ( @list ){
           push(@matched,$match) if $name eq $match;  # where want to access parent array
       }
     }
   };
}

waitall;                                              # wait for children to finish playing

say "Matched: @matched";                              # nothing; not desired, 

结果:

Matched: john