There exists a race condition that can lead to a segfault. Thanks
go to vbernetr, who performed the analysis and provided patch, which
I only tweaked a very little bit.
Unfortunatley, I do not have the full list of contributors
available. The patch set was compiled by Ben Taylor, and I made
some further changes to adopt it to the news rsyslog branch. Others
provided much of the base work, but I can not find the names of the
original authors. If you happen to be one of them, please let me
know so that I can give proper credits.
- changed sequence when awakening thread
- removed no longer needed condition variable
- EXPERIMENTALLY added mutex guarding to hostname lookups
this is to be removed if it does not have any verifyable
useful effect
- added the ability to specify an error log function for the
runtime
- removed dependency of core runtime on dirty.h
Note that it is "better" modularity, not perfect. There is still
work to do, but I think we can for the time being proceed with
other things.
...to enable users to turn off pthread_yield calls which are
counter-productive on multiprocessor machines (but have been
shown to be useful on uniprocessors)
