add file rotation feature for package glog; improve gpool/gfpool; fix issue in gfile.MTimeMillisecond

database/gdb/gdb_core.go

@@ -721,7 +721,7 @@ func (c *Core) MarshalJSON() ([]byte, error) {
 // writeSqlToLogger outputs the sql object to logger.
 // It is enabled when configuration "debug" is true.
 func (c *Core) writeSqlToLogger(v *Sql) {
-	s := fmt.Sprintf("[%d ms] %s", v.End-v.Start, v.Format)
+	s := fmt.Sprintf("[%3d ms] %s", v.End-v.Start, v.Format)
 	if v.Error != nil {
 		s += "\nError: " + v.Error.Error()
 		c.logger.StackWithFilter(gPATH_FILTER_KEY).Error(s)

database/gdb/gdb_unit_init_test.go

@@ -62,6 +62,7 @@ func init() {
 	} else {
 		db = r
 	}
+	db.SetDebug(true)
 	schemaTemplate := "CREATE DATABASE IF NOT EXISTS `%s` CHARACTER SET UTF8"
 	if _, err := db.Exec(fmt.Sprintf(schemaTemplate, SCHEMA1)); err != nil {
 		gtest.Error(err)