// $Id$
// 
// Copyright 2007-2008 Cisco Systems Inc.
// 
// 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.

using System.Runtime.CompilerServices;

namespace Etch.Util
{
    /// <summary>
    ///  A safe integer counter
    /// </summary>
    public class IntCounter
    {
        /// <summary>
        /// Adjusts the value of the counter by k
        /// </summary>
        /// <param name="k">the adjustment to the counter.</param>
        /// <returns>the new value of the counter.</returns>
        /// 
        [MethodImpl( MethodImplOptions.Synchronized )]
        public int Adjust( int k )
        {
            value += k;
            return value;
        }

        /// <summary>
        /// 
        /// </summary>
        /// <returns>the value of the counter</returns>
        public int Get()
        {
            return value;
        }

        private int value;
    }
}