Re: Is getpid supposed to return PID-1?
Re: Is getpid supposed to return PID-1?
- Subject: Re: Is getpid supposed to return PID-1?
- From: Umesh Vaishampayan <email@hidden>
- Date: Tue, 13 Nov 2001 14:56:24 -0800
On Tuesday, November 13, 2001, at 06:29 AM, Kevin Bohan wrote:
Hi,
I have a BSD question and I apologise if this is not the right list, as
this is not really my area. However I have a daemon that writes its PID
to an external file when it starts up and I have a script that looks for
this file, extracts the PID in order to provide a commandline interface
that allows the process to be killed.
However, when I call getpid to write the PID to the text file it always
seems to write a value that is 1 less than the PID shown when I use ps to
view the process in question. Also if I call kill on the value returned
by getpid it tells me that the process doesn't exist. It would seem that
ps is right an getpid is wrong.
I can obviously just add one to the value returned by getpid, but is this
safe/future-proof? Is this a known issue? What should I do?
Kirby
You have a bug in your daemon. Care to post code for us to look at and
find it?
--Umesh
--
Umesh Vaishampayan Apple Computer, Inc.
Mac OS X Kernel Ph: (408) 974 0229