• Adam Simpkins's avatar
    logging: implement FATAL and DFATAL log levels · 61fbd669
    Adam Simpkins authored
    Summary:
    Add new `FATAL` and `DFATAL` log levels.
    
    Any log message with a level of `FATAL` always crashes the program.  Log
    messages with a level of `DFATAL` crash the program in debug build modes.
    
    Before crashing, the code makes sure to flush all LogHandlers, so that the
    fatal message is not lost if some of the LogHandlers process messages
    asynchronously.  If no LogHandlers were configured, the message is printed to
    stderr.
    
    Reviewed By: wez
    
    Differential Revision: D5189497
    
    fbshipit-source-id: c45dbd582fb1c3a962d00effb2967737ef97cc8b
    61fbd669
xlog.h 16.2 KB