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Re: How can I overwrite existing files with new input to running Ghostscript?.

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Ernie Kent wrote:

> I need Ghostscript to repeatedly write small, jpg images rapidly to the
> same file from PS or EPS input on STDIN. Once Ghostscript is up and
> running it takes an acceptable time to create my images. However, to
> repeatedly start Ghostscript and have it do the same job, quit and restart
> again is taking too long. I need to understand how to get Ghostscript to
> write a Postscript page to a jpg file, stay running and accept another
> Postscript page description from STDIN, write that to the same file,
> overwriting the first, and repeat that cycle indefinitely until told to
> quit. (This is all on a Linux machine by the way.)
> 
> I've been knocking my head against this, and finding the documentation not
> very helpful. The -dJOBSERVER switch looks like it should do something
> like the desired operation but I can't get it to. Can you give me any help
> to get on the right track?

Look at the device parameter
OutputFile <string>
which can be used as a key / value pair in the pagedevice dictionary.
Depending on how your input is irganized, you may need to intercept showpage 
to close the current output file and open a new one.

Helge

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How can I overwrite existing files with new input to running Ghostscript?. Ernie Kent <ernie@erniekent.com> - 2012-12-09 10:14 -0800
  Re: How can I overwrite existing files with new input to running Ghostscript?. Helge Blischke <h.blischke@acm.org> - 2012-12-09 22:13 +0100
    Re: How can I overwrite existing files with new input to running Ghostscript?. Ernie Kent <ernie@erniekent.com> - 2012-12-09 13:52 -0800
      Re: How can I overwrite existing files with new input to running Ghostscript?. "luser.droog" <luser.droog@gmail.com> - 2012-12-09 18:28 -0600
        Re: How can I overwrite existing files with new input to running Ghostscript?. Ernie Kent <ernie@erniekent.com> - 2012-12-09 17:11 -0800
  Re: How can I overwrite existing files with new input to running Ghostscript?. SaGS <sags5495@gmail.com> - 2012-12-09 20:24 -0800
    Re: How can I overwrite existing files with new input to running Ghostscript?. Ernie Kent <ernie@erniekent.com> - 2012-12-10 07:00 -0800
      Re: How can I overwrite existing files with new input to running Ghostscript?. Ernie Kent <ernie@erniekent.com> - 2012-12-10 12:39 -0800
        Re: How can I overwrite existing files with new input to running Ghostscript?. Chris <cjl@spamcop.net> - 2012-12-11 10:12 +0000
          Re: How can I overwrite existing files with new input to running Ghostscript?. Ernie Kent <ernie@erniekent.com> - 2012-12-11 11:04 -0800
            Re: How can I overwrite existing files with new input to running Ghostscript?. Chris <cjl@spamcop.net> - 2012-12-12 07:41 +0000
              Re: How can I overwrite existing files with new input to running Ghostscript?. SaGS <sags5495@gmail.com> - 2012-12-12 03:52 -0800
                Re: How can I overwrite existing files with new input to running Ghostscript?. Chris <cjl@spamcop.net> - 2012-12-12 12:52 +0000
                Re: How can I overwrite existing files with new input to running Ghostscript?. Ernie Kent <ernie@erniekent.com> - 2012-12-12 08:45 -0800
                Re: How can I overwrite existing files with new input to running Ghostscript?. Chris <cjl@spamcop.net> - 2012-12-13 14:07 +0000
        Re: How can I overwrite existing files with new input to running Ghostscript?. SaGS <sags5495@gmail.com> - 2012-12-11 02:44 -0800
          Re: How can I overwrite existing files with new input to running Ghostscript?. Ernie Kent <ernie@erniekent.com> - 2012-12-11 11:05 -0800
          Re: How can I overwrite existing files with new input to running Ghostscript?. Ernie Kent <ernie@erniekent.com> - 2012-12-11 12:37 -0800
          Re: How can I overwrite existing files with new input to running Ghostscript?. Ernie Kent <ernie@erniekent.com> - 2012-12-21 21:40 -0800
            Re: How can I overwrite existing files with new input to running Ghostscript?. SaGS <sags5495@gmail.com> - 2012-12-22 00:53 -0800
              Re: How can I overwrite existing files with new input to running Ghostscript?. Ernie Kent <ernie@erniekent.com> - 2012-12-22 09:00 -0800
                Re: How can I overwrite existing files with new input to running Ghostscript?. Ernie Kent <ernie@erniekent.com> - 2012-12-22 19:37 -0800
                Re: How can I overwrite existing files with new input to running Ghostscript?. Chris <cjl@spamcop.net> - 2012-12-23 17:16 +0000
                Re: How can I overwrite existing files with new input to running Ghostscript?. SaGS <sags5495@gmail.com> - 2012-12-23 10:16 -0800
                Re: How can I overwrite existing files with new input to running Ghostscript?. luser- -droog <mijoryx@yahoo.com> - 2012-12-24 19:37 -0800

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