func withContext(logger seelog.LoggerInterface, context ...string) (contextLogger T) {
formatFilter := &ContextFormatFilter{Context: context}
contextLogger = &Wrapper{Delegate: logger, Format: formatFilter, M: pkgMutex}
// additional stack depth so that we print the calling function correctly
// stack depth 0 would print the function in the seelog logger (e.g. seelog.Debug)
// stack depth 1 would print the function in the wrapper (e.g. wrapper.Debug)
// stack depth 2 prints the function calling the logger (wrapper), which is what we want.
logger.SetAdditionalStackDepth(2)
return contextLogger
}
func init() {
var seelogger seelog.LoggerInterface
var err error
fmt.Fprintln(os.Stderr, "Use default config init Logger")
seelogger, err = seelog.LoggerFromConfigAsBytes([]byte(defaultConfig))
if err != nil {
log.Panicf("Can't init Logger,error:%s", err)
return
} else {
//确保取得正确的调用堆栈
seelogger.SetAdditionalStackDepth(2)
}
logger = &SeeLogLogger{seelogger}
}