eina_log_threads_enable() and then get thread safe logging with
non-main threads being printed with special notation to easily spot
those.
SVN revision: 42199
* stderr logger was doing prefix properly but user message to stdout, fixed.
* log is improved:
* grep-able, it shows the 3 letter level name as prefix, unknown levels
will have their number printed.
* colors just on prefix, less polluted output still easy to spot.
* function names are highlighted.
SVN revision: 42197
* more docs.
* do not getenv("EINA_LOG_ABORT") everytime, just at init.
* EINA_UNLIKELY() in some critical paths (not that big impact anyway)
* eina_log_print_cb_stderr() and use it by default.
SVN revision: 42196
* eina_error might be kept for error messages and codes, but it's logging API
will be deprecated. For now, it's been kept for not breaking others code and
for a smoother transition.
* Added test for new logging API, also demonstrates usage.
SVN revision: 41960