// Copyright 2019 Yunion
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package sqlchemy

import (
	"fmt"
	"sync"
)

var (
	tableID                 = 0
	tableIDLock *sync.Mutex = &sync.Mutex{}
)

func getTableAliasName() string {
	tableIDLock.Lock()
	defer tableIDLock.Unlock()
	tableID++
	return fmt.Sprintf("t%d", tableID)
}

func ResetTableID() {
	tableIDLock.Lock()
	defer tableIDLock.Unlock()
	tableID = 0
}