Logger return copy of default logger.

NewAsyncWriter creates a writer wrapping w with a many-to-one diode in order to never block log producers and drop events if the writer can't keep up with the flow of data.

RedisWriter redis writer.

SetAttachment add global kv to logger.

SetCallDepth set call depth for show line number.

SetGlobalLevel set global log level.

SetOutput set multi log writer, careful, all SetXXX method are non-thread safe.

TakeStacktrace is helper func to take snap short of stack trace.

Level.

Level.

Level.

Level.

Level.

Level.

ConsoleConfig is conf for redis writer.

Log struct.

RedisConfig is conf for redis writer.

Writer is a io.Writer wrapper that uses a diode to make Write lock-free, non-blocking and thread safe.

BasicSampler is a sampler that will send every Nth events, regardless of there level.

Level indicate log level.