in reply to Re^11: how to print out windows service status
in thread how to print out windows service status

I am adding  while(){sleep(30);} in order to have status checked every 30 seconds. but it is just stopping there after the first time check. 
#!perl
use strict;
use autodie;
use Win32::Service qw'GetServices GetStatus';

my @state_name =  qw( UNKNOWN Stopped START_PENDING STOP_PENDING
                      Started CONTINUE_PENDING PAUSE_PENDING
                      PAUSED  ERROR  );

my $filename = '/Users/tyang/Documents/Traning/Perl/XiServiceList.txt'
+;
open FILE, '<', $filename;# autodie
my $hostname = <FILE>;
chomp $hostname;

print "Checking Services available for '$hostname'\n";
my %available=();
GetServices($hostname,\%available) or die "$!";

# add short names
$available{$_} = $_ for values %available;

print "Checking services in list\n";
while()
{ sleep(30);
while (<FILE>){
  # trim leading and trailing whitespace
  s/^\s+|\s+$//g;
  if (exists $available{$_}){
    my $shortname = $available{$_};
    my %status;
    GetStatus($hostname, $shortname, \%status);
    my $state_no = $status{'CurrentState'};
    printf  " ServiceStatus: %s %s %s \n", 
        $hostname, $shortname, $state_name[$state_no]; 
    
  } else {
    print "-- ERROR -- '$_' status not avaiable\n";
  }
}

}

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Re^13: how to print out windows service status
by poj (Abbot) on Aug 01, 2017 at 19:16 UTC

    If you want to repeat the checks read the list of services into an array.

    #!perl
use strict;
use autodie;
use Win32::Service qw'GetServices GetStatus';

my @state_name =  qw( UNKNOWN Stopped START_PENDING STOP_PENDING
                      Started CONTINUE_PENDING PAUSE_PENDING
                      PAUSED  ERROR  );

my $filename = 'XiServiceList.txt';
open FILE, '<', $filename;# autodie
my $hostname = <FILE>;
chomp $hostname;
my @services = <FILE>;
close FILE;

print "Checking Services available for '$hostname'\n";
my %available=();
GetServices($hostname,\%available) or die "$!";

# add short names
$available{$_} = $_ for values %available;

for my $n (1..10){
  my $t = scalar localtime;
  print "\nChecking services in list - run $n $t\n";
  for (@services){
    # trim leading and trailing whitespace
    s/^\s+|\s+$//g;
    if (exists $available{$_}){
      my $shortname = $available{$_};
      my %status;
      GetStatus($hostname, $shortname, \%status);
      my $state_no = $status{'CurrentState'};
      printf  " ServiceStatus: %s %s %s \n", 
        $hostname, $shortname, $state_name[$state_no]; 
    
    } else {
      print "-- ERROR -- '$_' status not avaiable\n";
    } 
  }
  sleep 30;
}

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[reply]
[d/l]
      when I ran this script, it generates a too big file to open. I do not quite understand, The repeat times is not too bad.
[reply]

        That script doesn't create a file, you need to show the code you are running.

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