Create & Init Project...

library/database/sql/mysql.go

@@ -0,0 +1,40 @@
+package sql
+
+import (
+	"go-common/library/log"
+	"go-common/library/net/netutil/breaker"
+	"go-common/library/stat"
+	"go-common/library/time"
+
+	// database driver
+	_ "github.com/go-sql-driver/mysql"
+)
+
+var stats = stat.DB
+
+// Config mysql config.
+type Config struct {
+	Addr         string          // for trace
+	DSN          string          // write data source name.
+	ReadDSN      []string        // read data source name.
+	Active       int             // pool
+	Idle         int             // pool
+	IdleTimeout  time.Duration   // connect max life time.
+	QueryTimeout time.Duration   // query sql timeout
+	ExecTimeout  time.Duration   // execute sql timeout
+	TranTimeout  time.Duration   // transaction sql timeout
+	Breaker      *breaker.Config // breaker
+}
+
+// NewMySQL new db and retry connection when has error.
+func NewMySQL(c *Config) (db *DB) {
+	if c.QueryTimeout == 0 || c.ExecTimeout == 0 || c.TranTimeout == 0 {
+		panic("mysql must be set query/execute/transction timeout")
+	}
+	db, err := Open(c)
+	if err != nil {
+		log.Error("open mysql error(%v)", err)
+		panic(err)
+	}
+	return
+}