Sure (thanks for the tip, anyway), but you may know that Nagios allows plugins to be written in any language, not only C. My point was just to warn plugin developers about concurrent plugin executions and colliding temp files, and suggesting a basic way to circumvent this. Yours looks better than mine (and I googled for methods to do this in PERL, which is the language I use for plugin development, I'll consider updating my plugins), but this questions plugins portability and the need to install PERL libraries... Anyway, thanks for your rude welcome to this mailing list. I just wanted to warn about a stupid bug I made lately where 2 concurrent executions of my plugin were using the same temp file. Leave the documentation as is, and expect no more comments from me. Regards Matthieu <div class="gmail_quote">On Wed, Dec 28, 2011 at 2:22 PM, Ferenc Wagner <<a href="mailto:wferi@niif.hu">wferi@niif.hu</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <div class="im">Matthieu Fournet <<a href="mailto:fournet.matthieu@gmail.com">fournet.matthieu@gmail.com</a>> writes: > I'd like to add my 10 cents to the plugins developer guidelines (at section > "3.3. Don't make temp files unless absolutely required", > <a href="http://nagiosplug.sourceforge.net/developer-guidelines.html#AEN254" target="_blank">http://nagiosplug.sourceforge.net/developer-guidelines.html#AEN254</a>), > regarding the use of temporary files. </div>> [...] <div class="im">> So my advice would be to name temp files like : > > tmp_[plugin_name]_[timestamp] </div>Libc provides the mkstemp() family and tmpfile() for this purpose. I think you'd be better off using those instead of inventing own methods. -- Regards, Feri. ------------------------------------------------------------------------------ Write once. Port to many. Get the SDK and tools to simplify cross-platform app development. Create new or port existing apps to sell to consumers worldwide. Explore the Intel AppUpSM program developer opportunity. <a href="http://appdeveloper.intel.com/join" target="_blank">appdeveloper.intel.com/join</a> <a href="http://p.sf.net/sfu/intel-appdev" target="_blank">http://p.sf.net/sfu/intel-appdev</a> _______________________________________________________ Nagios Plugin Development Mailing List <a href="mailto:Nagiosplug-devel@lists.sourceforge.net">Nagiosplug-devel@lists.sourceforge.net</a> Unsubscribe at <a href="https://lists.sourceforge.net/lists/listinfo/nagiosplug-devel" target="_blank">https://lists.sourceforge.net/lists/listinfo/nagiosplug-devel</a> ::: Please include plugins version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null </blockquote></div>