//LaunchModule is intended to run in a separate goroutine and used by rlog internally. It writes log
//messages to file Arguments: [dataChan] Channel to receive log messages. [flushChan] Channel to
//receive flush command
func (conf *fileLogger) LaunchModule(dataChan <-chan (*common.RlogMsg), flushChan chan (chan (bool))) {
prefix := common.SyslogHeader()
//Wait forever on data and flush channel
for {
select {
case logMsg := <-dataChan:
//Received log message, print it
err := conf.writeMsg(logMsg, prefix)
if err != nil {
// we may be able to work around intermittent failures by reopening.
if conf.reopenFile() != nil {
err = conf.writeMsg(logMsg, prefix)
}
}
if err != nil {
// panic if reopening did not resolve the issue.
panic(err)
}
case ret := <-flushChan:
//Flush and return success
conf.flush(dataChan, prefix)
ret <- true
}
}
}
// Intended to run in a separate goroutine. It prints log messages to console.
//
// dataChan: receives log messages.
//
// flushChan: receives flush command.
func (conf *ConsoleLogger) LaunchModule(dataChan <-chan (*common.RlogMsg), flushChan chan (chan (bool))) {
prefix := common.SyslogHeader()
// wait forever on data and flush channel
for {
select {
case logMsg := <-dataChan:
// received log message, print it
conf.printMsg(logMsg, prefix)
case ret := <-flushChan:
// flush and return success
conf.flush(dataChan, prefix)
ret <- true
}
}
}