cyf
244 lines
8.9 KiB
C#
244 lines
8.9 KiB
C#
/******************************
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* 说明：Socket传输数据类
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* 创建人：龚宇超
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* 创建日期：2018-01-23
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* 修改人：
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* 修改日期：
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* 修改备注：
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* 版本：1.0.0.0
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******************************/
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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namespace Lskj.SocketService
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{
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/// <summary>
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/// Socket传输数据类
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/// </summary>
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public class DynamicBufferManager
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{
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/// <summary>
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///存放内存的数组
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/// </summary>
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/// <value>The buffer.</value>
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public byte[] Buffer { get; set; }
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/// <summary>
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/// 写入数据大小
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/// </summary>
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/// <value>The data count.</value>
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public int DataCount { get; set; }
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public DynamicBufferManager(int bufferSize)
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{
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DataCount = 0;
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Buffer = new byte[bufferSize];
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}
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/// <summary>
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/// <para>说明：获得当前写入的字节数</para>
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/// <para>创建人：龚宇超</para>
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/// <para>创建日期：2018-01-24 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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/// <returns>System.Int32.</returns>
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public int GetDataCount()
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{
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return DataCount;
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}
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/// <summary>
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/// <para>说明：获得剩余的字节数</para>
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/// <para>创建人：龚宇超</para>
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/// <para>创建日期：2018-01-24 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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/// <returns>System.Int32.</returns>
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public int GetReserveCount()
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{
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return Buffer.Length - DataCount;
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}
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/// <summary>
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/// <para>说明：清除数据</para>
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/// <para>创建人：龚宇超</para>
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/// <para>创建日期：2018-01-24 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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public void Clear()
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{
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DataCount = 0;
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}
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/// <summary>
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/// <para>说明：清理指定大小的数据</para>
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/// <para>创建人：龚宇超</para>
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/// <para>创建日期：2018-01-24 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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/// <param name="count">The count.</param>
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public void Clear(int count)
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{
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if (count >= DataCount) //如果需要清理的数据大于现有数据大小，则全部清理
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{
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DataCount = 0;
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}
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else
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{
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for (int i = 0; i < DataCount - count; i++) //否则后面的数据往前移
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{
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Buffer[i] = Buffer[count + i];
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}
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DataCount = DataCount - count;
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}
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}
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/// <summary>
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/// <para>说明：设置缓存大小</para>
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/// <para>创建人：龚宇超</para>
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/// <para>创建日期：2018-01-24 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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/// <param name="size">The size.</param>
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public void SetBufferSize(int size)
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{
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if (Buffer.Length < size)
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{
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byte[] tmpBuffer = new byte[size];
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Array.Copy(Buffer, 0, tmpBuffer, 0, DataCount); //复制以前的数据
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Buffer = tmpBuffer; //替换
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}
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}
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/// <summary>
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/// <para>说明：写入数据</para>
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/// <para>创建人：龚宇超</para>
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/// <para>创建日期：2018-01-24 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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/// <param name="buffer">The buffer.</param>
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/// <param name="offset">The offset.</param>
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/// <param name="count">The count.</param>
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public void WriteBuffer(byte[] buffer, int offset, int count)
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{
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if (GetReserveCount() >= count) //缓冲区空间够，不需要申请
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{
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Array.Copy(buffer, offset, Buffer, DataCount, count);
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DataCount = DataCount + count;
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}
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else //缓冲区空间不够，需要申请更大的内存，并进行移位
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{
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int totalSize = Buffer.Length + count - GetReserveCount(); //总大小-空余大小
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byte[] tmpBuffer = new byte[totalSize];
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Array.Copy(Buffer, 0, tmpBuffer, 0, DataCount); //复制以前的数据
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Array.Copy(buffer, offset, tmpBuffer, DataCount, count); //复制新写入的数据
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DataCount = DataCount + count;
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Buffer = tmpBuffer; //替换
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}
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}
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/// <summary>
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/// <para>说明：写入数据</para>
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/// <para>创建人：龚宇超</para>
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/// <para>创建日期：2018-01-24 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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/// <param name="buffer">The buffer.</param>
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public void WriteBuffer(byte[] buffer)
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{
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WriteBuffer(buffer, 0, buffer.Length);
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}
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/// <summary>
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/// <para>说明：写入Short</para>
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/// <para>创建人：龚宇超</para>
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/// <para>创建日期：2018-01-24 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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/// <param name="value">The value.</param>
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/// <param name="convert">if set to <c>true</c> [convert].</param>
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public void WriteShort(short value, bool convert)
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{
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if (convert)
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{
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value = System.Net.IPAddress.HostToNetworkOrder(value); //NET是小头结构，网络字节是大头结构，需要客户端和服务器约定好
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}
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byte[] tmpBuffer = BitConverter.GetBytes(value);
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WriteBuffer(tmpBuffer);
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}
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/// <summary>
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/// <para>说明：写入Int</para>
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/// <para>创建人：龚宇超</para>
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/// <para>创建日期：2018-01-24 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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/// <param name="value">The value.</param>
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/// <param name="convert">if set to <c>true</c> [convert].</param>
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public void WriteInt(int value, bool convert)
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{
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if (convert)
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{
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value = System.Net.IPAddress.HostToNetworkOrder(value); //NET是小头结构，网络字节是大头结构，需要客户端和服务器约定好
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}
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byte[] tmpBuffer = BitConverter.GetBytes(value);
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WriteBuffer(tmpBuffer);
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}
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/// <summary>
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/// <para>说明：写入Long</para>
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/// <para>创建人：龚宇超</para>
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/// <para>创建日期：2018-01-24 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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/// <param name="value">The value.</param>
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/// <param name="convert">if set to <c>true</c> [convert].</param>
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public void WriteLong(long value, bool convert)
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{
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if (convert)
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{
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value = System.Net.IPAddress.HostToNetworkOrder(value); //NET是小头结构，网络字节是大头结构，需要客户端和服务器约定好
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}
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byte[] tmpBuffer = BitConverter.GetBytes(value);
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WriteBuffer(tmpBuffer);
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}
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/// <summary>
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/// <para>说明：写入String</para>
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/// <para>创建人：龚宇超</para>
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/// <para>创建日期：2018-01-24 </para>
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/// <para>修改人：</para>
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/// <para>修改日期：</para>
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/// <para>修改备注：</para>
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/// <para>版本：1.0</para>
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/// </summary>
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/// <param name="value">The value.</param>
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public void WriteString(string value) //文本全部转成UTF8，UTF8兼容性好
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{
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byte[] tmpBuffer = Encoding.UTF8.GetBytes(value);
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WriteBuffer(tmpBuffer);
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}
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}
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}
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