/// <summary>Creates a new IncomingResponse Frame</summary>
/// <param name="communicator">The communicator to use when initializing the stream.</param>
/// <param name="payload">The frame data as an array segment.</param>
public IncomingResponseFrame(Communicator communicator, ArraySegment <byte> payload)
{
_communicator = communicator;
byte replyStatus = payload[0];
if (replyStatus > 7)
{
throw new InvalidDataException(
$"received ice1 response frame with unknown reply status `{replyStatus}'");
}
ReplyStatus = (ReplyStatus)replyStatus;
Payload = payload;
if (ReplyStatus == ReplyStatus.UserException || ReplyStatus == ReplyStatus.OK)
{
int size = InputStream.ReadInt(Payload.Slice(1, 4));
if (size != Payload.Count - 1)
{
throw new InvalidDataException($"invalid encapsulation size: `{size}'");
}
Encoding = new Encoding(payload[5], payload[6]);
}
else
{
Encoding = Encoding.V1_1;
}
}
public IPEndpoint(TransportInstance instance, Ice.InputStream s)
{
Instance = instance;
Host = s.ReadString();
Port = s.ReadInt();
SourceAddr = null;
ConnectionId_ = "";
}
private static void PrintBatchRequest(System.IO.StringWriter s, Ice.InputStream str)
{
int batchRequestNum = str.ReadInt();
s.Write("\nnumber of requests = " + batchRequestNum);
for (int i = 0; i < batchRequestNum; ++i)
{
s.Write("\nrequest #" + i + ':');
PrintRequestHeader(s, str);
}
}
private static void PrintRequest(System.IO.StringWriter s, Ice.InputStream str)
{
int requestId = str.ReadInt();
s.Write("\nrequest id = " + requestId);
if (requestId == 0)
{
s.Write(" (oneway)");
}
PrintRequestHeader(s, str);
}
internal static ArraySegment <byte> Decompress(ArraySegment <byte> compressed, int headerSize, int messageSizeMax)
{
Debug.Assert(IsLoaded);
int decompressedSize = InputStream.ReadInt(compressed.AsSpan(headerSize, 4));
if (decompressedSize <= headerSize)
{
throw new InvalidDataException(
$"received compressed ice1 frame with a decompressed size of only {decompressedSize} bytes");
}
if (decompressedSize > messageSizeMax)
{
throw new InvalidDataException(
$"decompressed size of {decompressedSize} bytes is greater than Ice.MessageSizeMax value");
}
byte[] decompressed = new byte[decompressedSize];
// Prevent GC from moving the byte array, this allow to take the object address
// and pass it to bzip2 calls.
var decompressedHandle = GCHandle.Alloc(decompressed, GCHandleType.Pinned);
var compressedHandle = GCHandle.Alloc(compressed.Array, GCHandleType.Pinned);
var bzStream = new BZStream(decompressedHandle.AddrOfPinnedObject() + headerSize,
(uint)(decompressedSize - headerSize));
BzStatus rc;
try
{
rc = (BzStatus)BZ2_bzDecompressInit(ref bzStream, 0, 0);
if (rc != BzStatus.Ok)
{
throw new TransportException($"bzip2 decompression failed: {rc}");
}
bzStream.NextIn = compressedHandle.AddrOfPinnedObject() + compressed.Offset + headerSize + 4;
bzStream.AvailIn = (uint)(compressed.Count - headerSize - 4);
rc = (BzStatus)BZ2_bzDecompress(ref bzStream);
if (rc != BzStatus.StreamEnd)
{
throw new TransportException($"bzip2 decompression failed: {rc}");
}
}
finally
{
rc = (BzStatus)BZ2_bzDecompressEnd(ref bzStream);
Debug.Assert(rc == BzStatus.Ok);
decompressedHandle.Free();
compressedHandle.Free();
}
compressed.AsSpan(0, headerSize).CopyTo(decompressed);
return(decompressed);
}
private static void PrintReply(System.IO.StringWriter s, Ice.InputStream str)
{
int requestId = str.ReadInt();
s.Write("\nrequest id = " + requestId);
var replyStatus = (ReplyStatus)str.ReadByte();
s.Write($"\nreply status = {replyStatus}");
if (replyStatus == ReplyStatus.OK || replyStatus == ReplyStatus.UserException)
{
_ = str.SkipEncapsulation();
s.Write("\nencoding = ");
}
}
private protected IPEndpoint(TransportInstance instance, InputStream s)
{
Instance = instance;
Host = s.ReadString();
Port = s.ReadInt();
}
private static Ice1Definitions.MessageType PrintHeader(System.IO.StringWriter s, Ice.InputStream str)
{
try
{
str.ReadByte(); // Don't bother printing the magic number
str.ReadByte();
str.ReadByte();
str.ReadByte();
/* byte pMajor = */
str.ReadByte();
/* byte pMinor = */
str.ReadByte();
//s.Write("\nprotocol version = " + (int)pMajor + "." + (int)pMinor);
/* byte eMajor = */
str.ReadByte();
/* byte eMinor = */
str.ReadByte();
//s.Write("\nencoding version = " + (int)eMajor + "." + (int)eMinor);
var type = (Ice1Definitions.MessageType)str.ReadByte();
s.Write("\nmessage type = " + (int)type + " (" + GetMessageTypeAsString(type) + ')');
byte compress = str.ReadByte();
s.Write("\ncompression status = " + (int)compress + ' ');
switch (compress)
{
case 0:
{
s.Write("(not compressed; do not compress response, if any)");
break;
}
case 1:
{
s.Write("(not compressed; compress response, if any)");
break;
}
case 2:
{
s.Write("(compressed; compress response, if any)");
break;
}
default:
{
s.Write("(unknown)");
break;
}
}
int size = str.ReadInt();
s.Write("\nmessage size = " + size);
return(type);
}
catch (System.IO.IOException)
{
Debug.Assert(false);
return(0);
}
}
internal TcpEndpoint(TransportInstance instance, InputStream s) :
base(instance, s)
{
Timeout = s.ReadInt();
HasCompressionFlag = s.ReadBool();
}
public TcpEndpoint(TransportInstance instance, Ice.InputStream s) :
base(instance, s)
{
_timeout = s.ReadInt();
_compress = s.ReadBool();
}