This function takes up quite a bit of space, and there's no need to for
the log getter to be inlined everywhere. Moving this to out-of-line
code saves ~200K on x86-64 Linux.
The current definition of MOZ_LOG requires calling
LazyLogModule::operator() multiple times, which is unnecessary. We can
avoid that with a bit of clever macro definition and a lengthy
explanation.
This annotates vsprintf-like functions with MOZ_FORMAT_PRINTF. This may
provide some minimal checking of such calls (the GCC docs say that it
checks for the string for "consistency"); but in any case shouldn't
hurt.
MozReview-Commit-ID: HgnAK1LiorE
* Only allows setting the log file at runtime if not set by an Env Var
* LogModulePrefWatcher will watch logging.config. prefs and call into Logging.cpp to set the log file, sync or timestamp
* Log files set by pref will have a -main.PID or -child.PID suffix
* If the logging.config.clear_on_startup pref is true, prefs will be reset upon restart.
MozReview-Commit-ID: CWJujX4jm2A
The logging interface is moved to xpcom/base, a LogModule wrapper for PR_Log is
added, a thread-safe LogModuleManager is added, and a LazyLogModule class used
to lazily load log modules in a thread-safe manner is added.
