Date: Wed, 30 Nov 2005 10:31:32 -0500 From: Chuck Swiger <cswiger@mac.com> To: Javier Matos <javierlu@gmail.com> Cc: freebsd-questions@freebsd.org Subject: Re: is child PID always minor to parent PID? Message-ID: <438DC5D4.80700@mac.com> In-Reply-To: <001601c5f5c2$a77a0720$0301a8c0@mindcrash> References: <001601c5f5c2$a77a0720$0301a8c0@mindcrash>
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Javier Matos wrote: > Hi, I need to know if the PID of a child process is always higher to > parent PID because I made an algorithm to search a child and I want to > know if I can start searching for a process that have a higher number > than parent PID. No, the PID of a child could be less than the parent if randomize PIDs sysctl is set, or if the PID counter wraps. The fork() call returns the child's pid. Pay attention to that... -- -Chuck
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