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From r..@ai.mit.edu (Robert S. Thau)
Subject Re: Log file and databases
Date Tue, 09 May 1995 14:37:00 GMT
   Date: Tue, 09 May 1995 08:58:26 -0500
   From: Randy Terbush <randy@dsndata.com>
   Precedence: bulk
   Reply-To: new-httpd@hyperreal.com


   >    Date: Mon, 08 May 1995 14:53:19 -0500
   >    From: Randy Terbush <randy@dsndata.com>
   > 
   >    Naive question warning:
   >    Would it not be possible for the children to open a socket back to the
   >    parent for logging transactions?
   > 
   > You don't even need that much --- they could use pipes (as in the NCSA
   > 1.4 code, in which children use pipes back to the parent process to
   > let it know when they're ready for another transaction).

   This requires IPC support?

Not for the logging application --- plain 'ol Unix pipes work fine for
that.  Where NCSA 1.4 gets into real arcana is that it requires the
ability to transfer a *file descriptor* from one process to another
--- a feature which is present in most Unix variants these days, but
not all, and to which there is no single standard interface which can
be relied on to work...

rst

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