Esempio n. 1
0
func NewSlowLogParser(file *os.File, stopChan <-chan bool, opt Options) *SlowLogParser {
	// Seek to the offset, if any.
	// @todo error if start off > file size
	if opt.StartOffset > 0 {
		// @todo handle error
		file.Seek(int64(opt.StartOffset), os.SEEK_SET)
	}

	if opt.Debug {
		l.SetFlags(l.Ltime | l.Lmicroseconds)
		fmt.Println()
		l.Println("parsing " + file.Name())
	}

	p := &SlowLogParser{
		stopChan:    stopChan,
		opt:         opt,
		file:        file,
		EventChan:   make(chan *log.Event),
		inHeader:    false,
		inQuery:     false,
		headerLines: 0,
		queryLines:  0,
		bytesRead:   opt.StartOffset,
		lineOffset:  0,
		event:       log.NewEvent(),
	}
	return p
}
Esempio n. 2
0
func (p *SlowLogParser) sendEvent(inHeader bool, inQuery bool) {
	if p.opt.Debug {
		l.Println("send event")
	}

	// Make a new event and reset our metadata.
	defer func() {
		p.event = log.NewEvent()
		p.headerLines = 0
		p.queryLines = 0
		p.inHeader = inHeader
		p.inQuery = inQuery
	}()

	if _, ok := p.event.TimeMetrics["Query_time"]; !ok {
		if p.headerLines == 0 {
			l.Panicf("No Query_time in event at %d: %#v", p.lineOffset, p.event)
		}
		// Started parsing in header after Query_time.  Throw away event.
		return
	}

	// Clean up the event.
	p.event.Db = strings.TrimSuffix(p.event.Db, ";\n")
	p.event.Query = strings.TrimSuffix(p.event.Query, ";")

	// Send the event.  This will block.
	select {
	case p.EventChan <- p.event:
	case <-p.stopChan:
		p.stopped = true
	}
}