Re^2: Forking and running all child processes at the same time


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Re^2: Forking and running all child processes at the same time

by jimbojones (Friar)

on Jun 06, 2005 at 14:34 UTC ( [id://463922]=note: print w/replies, xml )

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in reply to Re: Forking and running all child processes at the same time
in thread Forking and running all child processes at the same time

Hi
As pointed out by BrowserUK in this node Re: Unix Review column, your:

1 while wait > 0;  # avoid zombies
[download]

won't work on windows systems. The windows implementation uses the negative of the thread ID as the pid, so wait returns negative numbers for all children.

It seems the most cross-platform wait statement is:

1 while wait != -1 ;  # avoid zombies
[download]

since the main thread is ID 1, and the child threads won't have that ID. And it's what wait natively returns when there are no further child processes.

- j