selfcare init

proxy_go/Nredis/canal_info.go

@@ -0,0 +1,40 @@
+package Nredis
+
+import (
+	l4g "proxy/logger"
+)
+
+type BinLogPos struct {
+	File string `redis:"file"`
+	Position uint32 `redis:"position"`
+}
+
+func RdbSetBinLogPos(file string, pos uint32) error {
+	err := rdb.HMSet(ctx, "binlogpos", "file", file, "position", pos).Err()
+	if err != nil {
+		l4g.RedisLog.Errorf("HMSet binlogpos %s %d, err: %v", file, pos, err)
+	}
+
+	return err
+}
+
+func RdbGetBinLogPos() *BinLogPos {
+	// Get the map. The same approach works for HmGet().
+	res := rdb.HGetAll(ctx, "binlogpos")
+	err := res.Err()
+	if err != nil {
+		l4g.RedisLog.Errorf("HGetAll binlogpos, err: %v", err)
+		return nil
+	}
+
+	// Scan the results into the struct.
+	var pos BinLogPos
+	if err = res.Scan(&pos); err != nil {
+		l4g.RedisLog.Errorf("HGetAll Scan binlogpos, err: %v", err)
+		return nil
+	} else {
+		l4g.RedisLog.Debugf("Get binlogpos, [%v]", pos)
+		return &pos
+	}
+}
+