C# Socket分包和拆包.自已仿着别人写了一个方法.可是比以前更慢了.效率也更低了.请高手指点!

Question

本帖最后由 qiuqingpo 于 2010-12-04 10:37:21 编辑

Answer 1

    class Program
    {
        static void Main(string[] args)
        {
            byte[] bs = new byte[] {1,0,0,0,10,
                                    1,0,0,0,12,
                                    2,0,0,0,12,
                                    123,2 };
            byte[][] result = Split(bs, 4);        }
        /// <summary>
        /// 
        /// </summary>
        /// <param name="inputData">输入字节</param>
        /// <param name="pkgLen">包长</param>
        /// <returns>分包结果</returns>
        public static byte[][] Split(byte[] inputData,int pkgLen)
        {  
           
            List<byte[]> outData = new List<byte[]>();
            int index=0;
            if (inputData==null)
            {
                return outData.ToArray();
            }
            int len=inputData.Length;
            //
            byte[] len2Bytes = new byte[pkgLen];
            //直到剩余字节比(包长的存储字节)小;
            while (pkgLen <= len - index)
            {
                //获取(包长)字节
                Array.Copy(inputData, index, len2Bytes, 0, pkgLen);
                //获取内容长度
                int len2 = BitConverter.ToInt32(len2Bytes, 0);
                byte[] content;
                //如果剩余字节足够
                if (len2 <= len - (pkgLen + index))
                {
                    content = new byte[len2];                }
                else //不足
                {
                    content = new byte[len - (pkgLen + index)];
                }                Array.Copy(inputData, index + pkgLen, content, 0, content.Length);
                index = index + pkgLen + content.Length;
                outData.Add(content);            }
            return outData.ToArray();
        }
    }