/// <summary>
/// receive whole pack
/// </summary>
/// <param name="in">input stream</param>
/// <param name="expect_cmd">expect response command</param>
/// <param name="expect_body_len">expect response package body length</param>
/// <returns> RecvPackageInfo: errno and reponse body(byte buff)</returns>
public static RecvPackageInfo recvPackage(Stream stream, byte expect_cmd, long expect_body_len)
{
RecvHeaderInfo header = recvHeader(stream, expect_cmd, expect_body_len);
if (header.errno != 0)
{
return(new RecvPackageInfo(header.errno, null));
}
byte[] body = new byte[(int)header.body_len];
int totalBytes = 0;
int remainBytes = (int)header.body_len;
int bytes;
while (totalBytes < header.body_len)
{
if ((bytes = stream.Read(body, totalBytes, remainBytes)) < 0)
{
break;
}
totalBytes += bytes;
remainBytes -= bytes;
}
if (totalBytes != header.body_len)
{
throw new IOException("recv package size " + totalBytes + " != " + header.body_len);
}
return(new RecvPackageInfo(0, body));
}
/// <summary>
/// receive whole pack
/// </summary>
/// <param name="input">input stream</param>
/// <param name="expectCmd">response command</param>
/// <param name="expectBodyLen">response package body length</param>
/// <returns>errno and reponse body(byte buff)</returns>
public static RecvPackageInfo RecvPackage(Stream input, byte expectCmd, long expectBodyLen)
{
RecvHeaderInfo header = RecvHeader(input, expectCmd, expectBodyLen);
if (header.Errno != 0)
{
return(new RecvPackageInfo(header.Errno, null));
}
byte[] body = new byte[(int)header.BodyLen];
int totalBytes = 0;
int remainBytes = (int)header.BodyLen;
int bytes;
while (totalBytes < header.BodyLen)
{
if ((bytes = input.Read(body, totalBytes, remainBytes)) < 0)
{
break;
}
totalBytes += bytes;
remainBytes -= bytes;
}
if (totalBytes != header.BodyLen)
{
throw new IOException("recv package size " + totalBytes + " != " + header.BodyLen);
}
return(new RecvPackageInfo((byte)0, body));
}
/// <summary>
/// send ACTIVE_TEST command to server, test if network is ok and the server is alive
/// </summary>
/// <param name="sock">the JavaSocket object</param>
public static bool activeTest(JavaSocket sock)
{
byte[] header;
header = packHeader(FDFS_PROTO_CMD_ACTIVE_TEST, 0, 0);
sock.GetStream().Write(header, 0, header.Length);
RecvHeaderInfo headerInfo = recvHeader(sock.GetStream(), TRACKER_PROTO_CMD_RESP, 0);
return(headerInfo.errno == 0 ? true : false);
}
/// <summary>
/// send ACTIVE_TEST command to server, test if network is ok and the server is alive
/// </summary>
/// <param name="sock">the Socket object</param>
/// <returns></returns>
public static bool ActiveTest(TcpClient sock)
{
byte[] header;
header = PackHeader(FdfsProtoCmdActiveTest, 0, (byte)0);
sock.GetStream().Write(header, 0, header.Length);
RecvHeaderInfo headerInfo = RecvHeader(sock.GetStream(), TrackerProtoCmdResp, 0);
return(headerInfo.Errno == 0 ? true : false);
}
