RLog provides a flexible message logging facility
for C++ programs and libraries. It is
subscription based, meaning you can subscribe to
messages of your choice in an number of ways: by
hierarchical channel name (e.g. "debug", "debug/
special", "error", etc.), or filename, component
name, etc. Log messages are individually enabled.
It is meant to be fast enough to leave in
production code - even where it may be called
many times, as both the GCC and Intel compilers
reduce the logging overhead a few clock cycles if
they are dormant (with no subscribers). Other
add-on components can extend subscriptions to
external programs, allowing you to enable and
collect debugging messages remotely.
