func (_tailer *Tailer) loop() {
transcript.TraceDebugging("running tailer...")
var _error error
var _offset int64
transcript.TraceDebugging("opening tailer file...")
_tailer.file, _error = os.Open(_tailer.path)
if _error != nil {
transcript.TraceError("error encountered while opening tailer file; aborting...")
panic(_error)
}
defer _tailer.file.Close()
_offset, _error = _tailer.file.Seek(0, os.SEEK_END)
if _error != nil {
transcript.TraceWarning("error encountered while positioning tailer file; ignoring...")
}
_tailer.pushIdentifier, _tailer.pushChannel = _tailer.router.CreateInbound()
defer _tailer.router.UnregisterInbound(_tailer.pushIdentifier)
_reader := bufio.NewReader(_tailer.file)
for _counter := 0; ; _counter += 1 {
_line, _error := _reader.ReadBytes('\n')
if _error == io.EOF {
time.Sleep(100 * time.Millisecond)
continue
}
if _error != nil {
transcript.TraceError("error encountered while reading tailer file; aborting...")
panic(_error)
}
if (_counter == 0) && (_offset != 0) {
continue
}
_tailer.pushChannel <- Event{Payload: _line}
}
}
func (_router *router) handleEvent(_event Event) {
transcript.TraceDebugging("routing event...")
for _, _channel := range _router.outboundChannels {
select {
case _channel <- _event:
default:
transcript.TraceWarning("channel buffer overflow...")
}
}
}