Article View: comp.unix
Article #273Re: How to find process name in c
From: Conor P. Cahill
Date: Wed, 17 Oct 1990 16:23
Date: Wed, 17 Oct 1990 16:23
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1347 bytes
In article <2190@megadon.UUCP> lyns@atc.boeing.com writes:
>Has anyone got a method for finding out if a process is running short of
>"ps -ef | grep processname" in a pipe. There must be a better way from
>within a c program.
If you are trying to find out if a particular executable is running (as
opposed to finding out if any programs named "xyz" are running) you
can just try to open the file for writing. If the open fails with
ETXTBSY, the executable is being run. Note that this works even if
you don't have write permission on the file because the text-busy
condition is usually checked before the access permissions.
--
Conor P. Cahill (703)430-9247 Virtual Technologies, Inc.,
uunet!virtech!cpcahil 46030 Manekin Plaza, Suite 160
Sterling, VA 22170
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!apple!altos!megadon!clp From: cpcahil@virtech.UUCP (Conor P. Cahill) Newsgroups: comp.unix Subject: Re: How to find process name in c Message-ID: <2213@megadon.UUCP> Date: 17 Oct 90 16:23:59 GMT References: <2190@megadon.UUCP> Sender: clp@megadon.UUCP Reply-To: uunet!virtech!cpcahil (Conor P. Cahill) Organization: Virtual Technologies Inc., Sterling VA Lines: 16 Approved: clp@megadon.UUCP