// MIT License
//
// Copyright (c) 2016-2017 xtaci
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.

package smux

import (
	"errors"
	"github.com/sagernet/sing/common/buf"
)

var defaultAllocator = (*Allocator)(nil)

type Allocator struct {
}

func (alloc *Allocator) Get(size int) *[]byte {
	buffer := buf.DefaultAllocator.Get(size)
	return &buffer
}

func (alloc *Allocator) Put(buffer *[]byte) error {
	if buffer == nil {
		return errors.New("allocator Put() incorrect buffer size")
	}
	return buf.DefaultAllocator.Put(*buffer)
}
