BigArray.cs

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// 
//  Copyright 2010-2015 Deveel
// 
//    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;

namespace Deveel.Data.Util {
    public static class BigArray {
        private static int _defaultBlockLength = 10 * 1024 * 1024;

        public static int DefaultBlockLength {
            get { return _defaultBlockLength; }
            set {
                if (value < 1024)
                    throw new ArgumentOutOfRangeException("value", "Minimum DefaultBlockLength value is 1024kb (1024*1024).");

                _defaultBlockLength = value;
            }
        }

        public static void Copy<T>(BigArray<T> source, long sourceIndex, BigArray<T> dest, long destIndex, long count) {
            if (source == null)
                throw new ArgumentNullException("source");

            if (sourceIndex < 0 || sourceIndex >= source.Length)
                throw new ArgumentOutOfRangeException("sourceIndex");

            if (dest == null)
                throw new ArgumentNullException("dest");

            if (destIndex < 0 || destIndex >= dest.Length)
                throw new ArgumentOutOfRangeException("destIndex");

            if (destIndex + count >= dest.Length)
                throw new ArgumentException("Cannot copy over the maximum destination capacity");

            for (var i = 0; i < count; i++) {
                dest[destIndex + i] = source[sourceIndex + i];
            }
        }
    }
}