Hi,
I want my program to justify if itself are running. If another same program is running, it will exit. The program will run on both win32 and linux, so i do not want use the linux 'ps' command and the module that list win32 processes. Is there a universal method both on win32 and linux? I know Java have a method like below: 
public static void Main(string[] args) {

  System.Threading.Mutex mutex = newSystem.Threading.Mutex

(false,"ThisShouldOnlyRunOnce");

  bool Running= !mutex.WaitOne(0,false);
  if(!Running)
    Application.Run(newFormMain());
  else
    MessageBox.Show("It is started!");
}

[download]
Do perl have similar method?
Thanks!

2006-01-01 Retitled by planetscape, as per Monastery guidelines
Original title: 'How to justify the program itself are running?'

In reply to How to detect other running instances of the same program? by xuepengduan

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.