/// <summary>
/// 以分块的方式对流进行循环地操作
/// </summary>
/// <param name="inputSteam">输入的流</param>
/// <param name="operateStreamEnventHandler">对流分块后，可以调用的具体的操作方法</param>
/// <param name="callBackObject">操作方法operateStreamEnventHandler内部可以使用的回调对象（即可以让调用本分方法的客户端程序，传递一个对象给operateStreamEnventHandler）</param>
public static void BlocklyCircularlyOperateStream(Stream inputSteam, OperateStreamEnventHandler operateStreamEnventHandler, object callBackObject)
{
long streamLength = inputSteam.Length;
int size = 10240;//10K一--10K为1块,每次读取10k
byte[] bytesReaded = new byte[size];
if (size > streamLength)
{
size = Convert.ToInt32(streamLength);
}
long currentPosition = 0;
bool isEnd = false;
while (isEnd == false)
{
if ((currentPosition + size) >= streamLength)
{
size = Convert.ToInt32(streamLength - currentPosition);
isEnd = true;
}
bytesReaded = new byte[size];
inputSteam.Position = currentPosition;
inputSteam.Read(bytesReaded, 0, size);
if (operateStreamEnventHandler != null)
{
operateStreamEnventHandler(null, new OperateStreamEnventArgs() { BytesReaded = bytesReaded, CallBackObject = callBackObject });
}
currentPosition += size;
}
}
/// <summary>
/// 以分块的方式对流进行循环地操作
/// </summary>
/// <param name="inputSteam">输入的流</param>
/// <param name="operateStreamEnventHandler">对流分块后，可以调用的具体的操作方法</param>
public static void BlocklyCircularlyOperateStream(Stream inputSteam, OperateStreamEnventHandler operateStreamEnventHandler)
{
BlocklyCircularlyOperateStream(inputSteam, operateStreamEnventHandler, null);
}
