- sockmapping rewritten from stratch to minimilse polling. poll() is now
only called if blocking is actually expected, splice pipes are now
polled if splice fails, buffers flushing is much more accurate.
- logging code moved to separate files
- signal masks added to client threads to prevent unneeded interruptions
- bandwidth limitation will not delay the thread after client or server
shutdown
usage example:
proxy -s
proxy -s2
-s - enable splice() for sockets mapping to avoid data to be copied to user space
-s2 - enable splice() and attempt to free user space buffer ASAP
