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Perl in a Nutshell, 2nd Edition
book

Perl in a Nutshell, 2nd Edition

by Nathan Patwardhan, Ellen Siever, Stephen Spainhour
June 2002
Beginner content levelBeginner
759 pages
80h 42m
English
O'Reilly Media, Inc.
Content preview from Perl in a Nutshell, 2nd Edition

Name

waitpid

Synopsis

waitpid pid, flags
                  

Waits for a particular child process pid to terminate and returns the pid when the process is dead, or -1 if there are no child processes or if the flags specify nonblocking and the process isn’t dead yet. The status of the dead process is returned in $?. To get valid flag values, do the following:

use POSIX "sys_wait_h";

On systems that implement neither the waitpid(2) nor the wait4(2) system call, flags may be specified only as 0. In other words, you can wait for a specific pid, but you can’t do it in nonblocking mode.

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Publisher Resources

ISBN: 0596002416Errata Page