[liblouis-liblouisxml] Unsure how to do a change to logging
- From: "Michael Whapples" <dmarc-noreply@xxxxxxxxxxxxx> (Redacted sender "mwhapples@xxxxxxx" for DMARC)
- To: liblouis-liblouisxml@xxxxxxxxxxxxx
- Date: Wed, 21 May 2014 18:15:08 +0100
Hello,
In changing the logging so that lou_log and lou_logPrint are not public,
I have hit a difficulty.
The problem is that in liblouisutdml, how I set a default log handler?
This might seem initially simple, just do it in the same way as in
liblouis. This however is not enough, it sets a default handler in
liblouisutdml but not in liblouis.
You may ask so what is the problem with that? It means that should
someone set a file name for the default log handler (eg.
lbu_logFilename), this gets set on liblouisutdml but ont on liblouis.
Having two handlers accessing one file (one handler in liblouis and one
in liblouisutdml) might cause file access problems.
What I need is a C version of a static initialiser (think of static
initialisers in Java) where I could call lou_registerLogCallback(NULL)
from liblouisutdml.
Failing that, I can only see two possible options:
1. Find every public function call in liblouisutdml and do a
check/register there. Risk being one will get missed and may become a
maintanence issue for the longer term.
2. The shared library option I suggested for logging code, then there is
only a single storing of the registered callback.
Michael Whapples
For a description of the software, to download it and links to
project pages go to http://www.abilitiessoft.com
Other related posts:
