// Copyright (C) 2023  Shanhu Tech Inc.
//
// This program is free software: you can redistribute it and/or modify it
// under the terms of the GNU Affero General Public License as published by the
// Free Software Foundation, either version 3 of the License, or (at your
// option) any later version.
//
// This program is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License
// for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.

package sniproxy

import (
	"sync"
)

type sessionID struct {
	id uint64
	mu sync.Mutex
}

func newSessionID() *sessionID {
	return &sessionID{}
}

func (id *sessionID) next() uint64 {
	id.mu.Lock()
	defer id.mu.Unlock()
	ret := id.id
	id.id++
	return ret
}
