Re: [Printing-architecture] ijs_invoke_server with hpijs

[Tobias Hoffmann <lprint-list@the-axe-effect.de>]

Matt Gessner wrote:
> I need to know how to set the OutputFD parameter given to hpijs.
>
> I've tried opening several different files, and I always end up with 
> "unable to read client data" coming from hpijs.
- does it work with OutputFile instead?
- does it work with the ijs_server_example from the ijs package instead
of hpijs?

The ijs_client_example source code does help to clarify the API, when in
doubt.
You can also look at the pdftoijs print filter:
http://svn.sourceforge.jp/cgi-bin/viewcvs.cgi/pdftoraster/branches/gsoc2008_pdftoijs_nocups/src/pdftoijs.cc?root=opfc&view=auto

Two other thoughts, though:
- the error "unable to read client data" suggests to me, that the
problem occurs way before anything related to the OutputFD happens, but
you probably have looked deeper
- the dup()/pipe()/open() or whatever you use to create the file
descriptor has to happen before the ijs_invoke_server, so that the
descriptor is  available to the forked process.

   Tobias