Re: xdg-open

"Stephen J. Turnbull" <stephen(a)xemacs.org&gt; writes: Everything created below $TMPDIR is temporary by definition. Temporary files should be deleted when the creating application believes the file is not needed any more or when the creating application exits (but see below). tmpreaper is really only useful for cleaning up the mess after an application has received SIGKILL. And that would only affect temporary files created in some standard location anyway. The invoked application should never explicitly remove a file which has not been created by the application itself. Obvious exceptions are programs like /bin/rm, etc. On Windows, the invoked application would keep the file open if needed, effectively preventing removal. Don't know if this is default behavior or whether there are some switches needed when opening a file (I have not the slightest clue about the Windows API and no plans to change that situation either). At some point XEmacs would try to remove the temporary file and silently ignore errors. On Unixoid systems, the directory entry of a file will be removed when the file is deleted so that it effectively becomes non-existent. The invoked application however, for as long as it holds a file handle, can access the file normally since the inode still exists. The physical file disappears automatically as soon as the application releases the handle. Again, XEmacs deleting a temporary file is not an issue as long as the invoked application had a chance to grab it while the file still exists. The /real/ trouble here is that there is a race condition between the ephemeral process exiting before the application has actually opened the file. If that'd be dealt with properly, we wouldn't have this discussion. No need for a protocol really since all this is intra-application. Just some common sense needed on the developer's end. xdg-open calls e.g. gnome-open calls <application> and returns if <application> returns. If <application> returns before owning the file this is not xdg-open's fault and neither gnome-open's. It is some of <application>'s developers who screwed up. He he... Regards Marcus -- note that "property" can also be used as syntaxtic sugar to reference a property, breaking the clean design of verilog; [...] (seen on http://www.veripool.com/verilog-mode_news.html) _______________________________________________ XEmacs-Beta mailing list XEmacs-Beta(a)xemacs.org http://calypso.tux.org/cgi-bin/mailman/listinfo/xemacs-beta