Perl File::Monitor 模块通知创建的新文件的多个通知，而我希望一个通知

Question

下面是代码片段！ 我正在使用Perl模块File：：Monitor进行文件创建通知。

#!/usr/bin/perl
use strict;
use warnings;
use File::Monitor;
use File::Basename;
use Time::HiRes qw {usleep};
my $pid,@pids;

sub textfile_notifier {
my ($watch_name, $event, $change) = @_; 
my @new_file_paths = $change->files_created; #The change object has a property called files_created, 
                                             #which contains the names of any new files
for my $path (@new_file_paths) {
    my ($base, $fname, $ext) = fileparse($path, '.log'); # $ext is "" if the '.txt' extension is
                                                         # not found, otherwise it's '.txt'.
    if ($ext eq '.log') {
        print "$path was createdn";
    #-----------------------------------------Forking part #-----------------------------------------
    defined ($pid = fork()) or die "Couldn't fork: $!";
    if ($pid == 0) { #then in child process
        print "Loop got executedn";
    }
    else {  #then in parent process, where $pid is the pid of the child
        push @pids, $pid;
    }
    #-----------------------------------------Forking part ends here #-----------------------------------------
    }
}
}
my $monitor = File::Monitor->new();
$monitor->watch( {
name        => '/home/goudarsh/Desktop/logs/',
recurse     => 1,
callback    => {files_created => &textfile_notifier},  #event => handler 1 
} );
$monitor->scan;
while (1) {
$monitor->scan; #Scanning the directory one
#sleep(2);
#usleep(10_000); #$microseconds = 750_000;
for my $pid (@pids) {
    waitpid($pid, 0)  #0 => block
}
}

文件创建

====

===============================

touch 1.log  
touch 2.log  
touch 3.log  
touch 4.log  

脚本的输出

====

========================

/home/goudarsh/Desktop/logs/1.log was created  
/home/goudarsh/Desktop/logs/2.log was created  
/home/goudarsh/Desktop/logs/2.log was created  
/home/goudarsh/Desktop/logs/3.log was created  
/home/goudarsh/Desktop/logs/3.log was created  
/home/goudarsh/Desktop/logs/3.log was created  
/home/goudarsh/Desktop/logs/4.log was created  
/home/goudarsh/Desktop/logs/3.log was created  
/home/goudarsh/Desktop/logs/4.log was created  
/home/goudarsh/Desktop/logs/4.log was created  
/home/goudarsh/Desktop/logs/4.log was created  
/home/goudarsh/Desktop/logs/4.log was created  
/home/goudarsh/Desktop/logs/4.log was created  
/home/goudarsh/Desktop/logs/4.log was created  
/home/goudarsh/Desktop/logs/4.log was created      

我期望在终端上为一个文件打印一个通知/警报。我怀疑的是"分叉部分"部分存在一些错误！

知道我哪里做错了吗？

Answer 1

这就是解决我的问题的方法

use strict;
use warnings;
use File::Monitor;
use File::Basename;
use Time::HiRes qw {usleep};
my $script = '/homw/goudarsh/Desktop/script.pl';
sub textfile_notifier {
my ($watch_name, $event, $change) = @_; 
my @new_file_paths = $change->files_created; #The change object has a property called files_created, 
                                         #which contains the names of any new files
for my $path (@new_file_paths) {
my ($base, $fname, $ext) = fileparse($path, '.log'); # $ext is "" if the '.txt' extension is
                                                     # not found, otherwise it's '.txt'.
if ($ext eq '.log') {
    print "$path was createdn";
    system("perl $script $path &");
}
}}
my $monitor = File::Monitor->new();
$monitor->watch( {
name        => '/home/goudarsh/Desktop/logs/',
recurse     => 1,
callback    => {files_created => &textfile_notifier},  #event => handler 1 
} );
$monitor->scan;
while (1) {
$monitor->scan; #Scanning the directory one
sleep(2);
#usleep(10_000); #$microseconds = 750_000;
}

我只想执行一个以$path作为参数的$script，我使用分叉来创建子进程，但我对使用不需要的分叉的概念是错误的！ 现在不用分叉，我可以做任何需要的事情，我很高兴学习新事物