Initial commit

vendor/github.com/siddontang/go-mysql/canal/master.go

@@ -0,0 +1,46 @@
+package canal
+
+import (
+	"sync"
+
+	"github.com/siddontang/go-mysql/mysql"
+	log "github.com/sirupsen/logrus"
+)
+
+type masterInfo struct {
+	sync.RWMutex
+
+	pos mysql.Position
+
+	gtid mysql.GTIDSet
+}
+
+func (m *masterInfo) Update(pos mysql.Position) {
+	log.Debugf("update master position %s", pos)
+
+	m.Lock()
+	m.pos = pos
+	m.Unlock()
+}
+
+func (m *masterInfo) UpdateGTID(gtid mysql.GTIDSet) {
+	log.Debugf("update master gtid %s", gtid.String())
+
+	m.Lock()
+	m.gtid = gtid
+	m.Unlock()
+}
+
+func (m *masterInfo) Position() mysql.Position {
+	m.RLock()
+	defer m.RUnlock()
+
+	return m.pos
+}
+
+func (m *masterInfo) GTID() mysql.GTIDSet {
+	m.RLock()
+	defer m.RUnlock()
+
+	return m.gtid
+}