public int AppendFragmentedMessage(HeaderWriter header, IDirectBuffer srcBuffer, int srcOffset, int length,
int maxPayloadLength, ReservedValueSupplier reservedValueSupplier, int activeTermId)
{
int numMaxPayloads = length / maxPayloadLength;
int remainingPayload = length % maxPayloadLength;
int lastFrameLength = remainingPayload > 0 ? BitUtil.Align(remainingPayload + DataHeaderFlyweight.HEADER_LENGTH, FrameDescriptor.FRAME_ALIGNMENT) : 0;
int requiredLength = (numMaxPayloads * (maxPayloadLength + DataHeaderFlyweight.HEADER_LENGTH)) + lastFrameLength;
long rawTail = GetAndAddRawTail(requiredLength);
int termId = LogBufferDescriptor.TermId(rawTail);
long termOffset = rawTail & 0xFFFFFFFFL;
UnsafeBuffer termBuffer = _termBuffer;
int termLength = termBuffer.Capacity;
CheckTerm(activeTermId, termId);
long resultingOffset = termOffset + requiredLength;
if (resultingOffset > termLength)
{
resultingOffset = HandleEndOfLogCondition(termBuffer, termOffset, header, termLength, termId);
}
else
{
int frameOffset = (int)termOffset;
byte flags = FrameDescriptor.BEGIN_FRAG_FLAG;
int remaining = length;
do
{
int bytesToWrite = Math.Min(remaining, maxPayloadLength);
int frameLength = bytesToWrite + DataHeaderFlyweight.HEADER_LENGTH;
int alignedLength = BitUtil.Align(frameLength, FrameDescriptor.FRAME_ALIGNMENT);
header.Write(termBuffer, frameOffset, frameLength, termId);
termBuffer.PutBytes(frameOffset + DataHeaderFlyweight.HEADER_LENGTH, srcBuffer,
srcOffset + (length - remaining), bytesToWrite);
if (remaining <= maxPayloadLength)
{
flags |= FrameDescriptor.END_FRAG_FLAG;
}
FrameDescriptor.FrameFlags(termBuffer, frameOffset, flags);
if (null != reservedValueSupplier)
{
long reservedValue = reservedValueSupplier(termBuffer, frameOffset, frameLength);
termBuffer.PutLong(frameOffset + DataHeaderFlyweight.RESERVED_VALUE_OFFSET, reservedValue, ByteOrder.LittleEndian);
}
FrameDescriptor.FrameLengthOrdered(termBuffer, frameOffset, frameLength);
flags = 0;
frameOffset += alignedLength;
remaining -= bytesToWrite;
} while (remaining > 0);
}
return((int)resultingOffset);
}
public virtual int AppendUnfragmentedMessage(
int termId,
int termOffset,
HeaderWriter header,
DirectBufferVector[] vectors,
int length,
ReservedValueSupplier reservedValueSupplier)
public virtual int AppendUnfragmentedMessage(
int termId,
int termOffset,
HeaderWriter header,
IDirectBuffer srcBuffer,
int srcOffset,
int length,
ReservedValueSupplier reservedValueSupplier)
/// <summary>
/// Non-blocking publish of a message composed of two parts, e.g. a header and encapsulated payload.
/// </summary>
/// <param name="bufferOne"> containing the first part of the message. </param>
/// <param name="offsetOne"> at which the first part of the message begins. </param>
/// <param name="lengthOne"> of the first part of the message. </param>
/// <param name="bufferTwo"> containing the second part of the message. </param>
/// <param name="offsetTwo"> at which the second part of the message begins. </param>
/// <param name="lengthTwo"> of the second part of the message. </param>
/// <param name="reservedValueSupplier"> <seealso cref="ReservedValueSupplier"/> for the frame. </param>
/// <returns> The new stream position, otherwise a negative error value of <seealso cref="NOT_CONNECTED"/>,
/// <seealso cref="BACK_PRESSURED"/>, <seealso cref="ADMIN_ACTION"/>, <seealso cref="CLOSED"/>, or <seealso cref="MAX_POSITION_EXCEEDED"/>. </returns>
public abstract long Offer(
IDirectBuffer bufferOne,
int offsetOne,
int lengthOne,
IDirectBuffer bufferTwo,
int offsetTwo,
int lengthTwo,
ReservedValueSupplier reservedValueSupplier = null);
/// <inheritdoc />
public override long Offer(IDirectBuffer bufferOne, int offsetOne, int lengthOne, IDirectBuffer bufferTwo,
int offsetTwo, int lengthTwo, ReservedValueSupplier reservedValueSupplier = null)
{
long newPosition = CLOSED;
if (!_isClosed)
{
long limit = _positionLimit.GetVolatile();
ExclusiveTermAppender termAppender = _termAppenders[_activePartitionIndex];
long position = _termBeginPosition + _termOffset;
int length = ValidateAndComputeLength(lengthOne, lengthTwo);
if (position < limit)
{
int result;
if (length <= MaxPayloadLength)
{
CheckPositiveLength(length);
result = termAppender.AppendUnfragmentedMessage(
_termId,
_termOffset,
_headerWriter,
bufferOne,
offsetOne,
lengthOne,
bufferTwo,
offsetTwo,
lengthTwo,
reservedValueSupplier);
}
else
{
CheckMaxMessageLength(length);
result = termAppender.AppendFragmentedMessage(
_termId,
_termOffset,
_headerWriter,
bufferOne,
offsetOne,
lengthOne,
bufferTwo,
offsetTwo,
lengthTwo,
MaxPayloadLength,
reservedValueSupplier);
}
newPosition = NewPosition(result);
}
else
{
newPosition = BackPressureStatus(position, length);
}
}
return(newPosition);
}
/// <inheritdoc />
public override long Offer(IDirectBuffer buffer, int offset, int length, ReservedValueSupplier reservedValueSupplier = null)
{
long newPosition = CLOSED;
if (!_isClosed)
{
long limit = _positionLimit.GetVolatile();
int termCount = LogBufferDescriptor.ActiveTermCount(_logMetaDataBuffer);
TermAppender termAppender = _termAppenders[LogBufferDescriptor.IndexByTermCount(termCount)];
long rawTail = termAppender.RawTailVolatile();
long termOffset = rawTail & 0xFFFF_FFFFL;
int termId = LogBufferDescriptor.TermId(rawTail);
long position = LogBufferDescriptor.ComputeTermBeginPosition(termId, PositionBitsToShift, InitialTermId) + termOffset;
if (termCount != (termId - InitialTermId))
{
return(ADMIN_ACTION);
}
if (position < limit)
{
int resultingOffset;
if (length <= MaxPayloadLength)
{
CheckPositiveLength(length);
resultingOffset = termAppender.AppendUnfragmentedMessage(
_headerWriter,
buffer,
offset,
length,
reservedValueSupplier,
termId);
}
else
{
CheckMaxMessageLength(length);
resultingOffset = termAppender.AppendFragmentedMessage(
_headerWriter,
buffer,
offset,
length,
MaxPayloadLength,
reservedValueSupplier,
termId);
}
newPosition = NewPosition(termCount, (int)termOffset, termId, position, resultingOffset);
}
else
{
newPosition = BackPressureStatus(position, length);
}
}
return(newPosition);
}
public ClientSession(AeronServer server, Publication publication, Image image)
{
_server = server;
Image = image;
Publication = publication;
var dataReservedValue = (long)new AeronReservedValue(Utils.CurrentProtocolVersion,
AeronMessageType.Data,
Publication.SessionId);
_dataReservedValueSupplier = (buffer, offset, length) => dataReservedValue;
}
public int AppendUnfragmentedMessage(
HeaderWriter header,
DirectBufferVector[] vectors,
int length,
ReservedValueSupplier reservedValueSupplier,
int activeTermId)
{
int frameLength = length + DataHeaderFlyweight.HEADER_LENGTH;
int alignedLength = BitUtil.Align(frameLength, FrameDescriptor.FRAME_ALIGNMENT);
UnsafeBuffer termBuffer = _termBuffer;
int termLength = termBuffer.Capacity;
long rawTail = GetAndAddRawTail(alignedLength);
int termId = LogBufferDescriptor.TermId(rawTail);
long termOffset = rawTail & 0xFFFFFFFFL;
CheckTerm(activeTermId, termId);
long resultingOffset = termOffset + alignedLength;
if (resultingOffset > termLength)
{
resultingOffset = HandleEndOfLogCondition(termBuffer, termOffset, header, termLength, termId);
}
else
{
int frameOffset = (int)termOffset;
header.Write(termBuffer, frameOffset, frameLength, LogBufferDescriptor.TermId(rawTail));
int offset = frameOffset + DataHeaderFlyweight.HEADER_LENGTH;
foreach (var vector in vectors)
{
termBuffer.PutBytes(offset, vector.buffer, vector.offset, vector.length);
offset += vector.length;
}
if (null != reservedValueSupplier)
{
long reservedValue = reservedValueSupplier(termBuffer, frameOffset, frameLength);
termBuffer.PutLong(frameOffset + DataHeaderFlyweight.RESERVED_VALUE_OFFSET, reservedValue, ByteOrder.LittleEndian);
}
FrameDescriptor.FrameLengthOrdered(termBuffer, frameOffset, frameLength);
}
return((int)resultingOffset);
}
public int AppendUnfragmentedMessage(
int termId,
int termOffset,
HeaderWriter header,
DirectBufferVector[] vectors,
int length,
ReservedValueSupplier reservedValueSupplier)
#endif
{
int frameLength = length + DataHeaderFlyweight.HEADER_LENGTH;
int alignedLength = BitUtil.Align(frameLength, FrameDescriptor.FRAME_ALIGNMENT);
UnsafeBuffer termBuffer = _termBuffer;
int termLength = termBuffer.Capacity;
int resultingOffset = termOffset + alignedLength;
PutRawTailOrdered(termId, resultingOffset);
if (resultingOffset > termLength)
{
resultingOffset = HandleEndOfLogCondition(termBuffer, termOffset, header, termLength, termId);
}
else
{
header.Write(termBuffer, termOffset, frameLength, termId);
var offset = termOffset + DataHeaderFlyweight.HEADER_LENGTH;
foreach (var vector in vectors)
{
termBuffer.PutBytes(offset, vector.buffer, vector.offset, vector.length);
offset += vector.length;
}
if (null != reservedValueSupplier)
{
long reservedValue = reservedValueSupplier(termBuffer, termOffset, frameLength);
termBuffer.PutLong(termOffset + DataHeaderFlyweight.RESERVED_VALUE_OFFSET, reservedValue, ByteOrder.LittleEndian);
}
FrameDescriptor.FrameLengthOrdered(termBuffer, termOffset, frameLength);
}
return(resultingOffset);
}
public long Offer(
UnsafeBuffer buffer,
int offset,
int length,
ReservedValueSupplier reservedValueSupplier = null)
{
var newPosition = CLOSED;
if (!_isClosed)
{
var limit = _positionLimit.Volatile;
var partitionIndex = LogBufferDescriptor.ActivePartitionIndex(_logMetaDataBuffer);
var termAppender = _termAppenders[partitionIndex];
var rawTail = termAppender.RawTailVolatile();
var termOffset = rawTail & 0xFFFFFFFFL;
var position = LogBufferDescriptor.ComputeTermBeginPosition(LogBufferDescriptor.TermId(rawTail), _positionBitsToShift, InitialTermId) + termOffset;
if (position < limit)
{
long result;
if (length <= MaxPayloadLength)
{
result = termAppender.AppendUnfragmentedMessage(_headerWriter, buffer, offset, length, reservedValueSupplier);
}
else
{
CheckForMaxMessageLength(length);
result = termAppender.AppendFragmentedMessage(_headerWriter, buffer, offset, length, MaxPayloadLength, reservedValueSupplier);
}
newPosition = NewPosition(partitionIndex, (int)termOffset, position, result);
}
else if (_conductor.IsPublicationConnected(LogBufferDescriptor.TimeOfLastStatusMessage(_logMetaDataBuffer)))
{
newPosition = BACK_PRESSURED;
}
else
{
newPosition = NOT_CONNECTED;
}
}
return(newPosition);
}
/// <inheritdoc />
public override long Offer(DirectBufferVector[] vectors, ReservedValueSupplier reservedValueSupplier = null)
{
int length = DirectBufferVector.ValidateAndComputeLength(vectors);
var newPosition = CLOSED;
if (!_isClosed)
{
var limit = _positionLimit.GetVolatile();
ExclusiveTermAppender termAppender = _termAppenders[_activePartitionIndex];
long position = _termBeginPosition + _termOffset;
if (position < limit)
{
int result;
if (length <= MaxPayloadLength)
{
result = termAppender.AppendUnfragmentedMessage(
_termId, _termOffset, _headerWriter, vectors, length, reservedValueSupplier);
}
else
{
CheckMaxMessageLength(length);
result = termAppender.AppendFragmentedMessage(
_termId,
_termOffset,
_headerWriter,
vectors,
length,
MaxPayloadLength,
reservedValueSupplier);
}
newPosition = NewPosition(result);
}
else
{
newPosition = BackPressureStatus(position, length);
}
}
return(newPosition);
}
/// <summary>
/// Append an unfragmented message to the the term buffer.
/// </summary>
/// <param name="termId"> for the current term. </param>
/// <param name="termOffset"> in the term at which to append. </param>
/// <param name="header"> for writing the default header. </param>
/// <param name="bufferOne"> containing the first part of the message. </param>
/// <param name="offsetOne"> at which the first part of the message begins. </param>
/// <param name="lengthOne"> of the first part of the message. </param>
/// <param name="bufferTwo"> containing the second part of the message. </param>
/// <param name="offsetTwo"> at which the second part of the message begins. </param>
/// <param name="lengthTwo"> of the second part of the message. </param>
/// <param name="reservedValueSupplier"> <seealso cref="ReservedValueSupplier"/> for the frame. </param>
/// <returns> the resulting offset of the term after the append on success otherwise <seealso cref="FAILED"/>. </returns>
public int AppendUnfragmentedMessage(
int termId,
int termOffset,
HeaderWriter header,
IDirectBuffer bufferOne,
int offsetOne,
int lengthOne,
IDirectBuffer bufferTwo,
int offsetTwo,
int lengthTwo,
ReservedValueSupplier reservedValueSupplier)
{
int frameLength = lengthOne + lengthTwo + DataHeaderFlyweight.HEADER_LENGTH;
int alignedLength = BitUtil.Align(frameLength, FrameDescriptor.FRAME_ALIGNMENT);
UnsafeBuffer termBuffer = _termBuffer;
int termLength = termBuffer.Capacity;
int resultingOffset = termOffset + alignedLength;
PutRawTailOrdered(termId, resultingOffset);
if (resultingOffset > termLength)
{
resultingOffset = HandleEndOfLogCondition(termBuffer, termOffset, header, termLength, termId);
}
else
{
header.Write(termBuffer, termOffset, frameLength, termId);
termBuffer.PutBytes(termOffset + DataHeaderFlyweight.HEADER_LENGTH, bufferOne, offsetOne, lengthOne);
termBuffer.PutBytes(termOffset + DataHeaderFlyweight.HEADER_LENGTH + lengthOne, bufferTwo, offsetTwo, lengthTwo);
if (null != reservedValueSupplier)
{
long reservedValue = reservedValueSupplier(termBuffer, termOffset, frameLength);
termBuffer.PutLong(termOffset + DataHeaderFlyweight.RESERVED_VALUE_OFFSET, reservedValue, ByteOrder.LittleEndian);
}
FrameDescriptor.FrameLengthOrdered(termBuffer, termOffset, frameLength);
}
return(resultingOffset);
}
public long Offer(
UnsafeBuffer buffer,
int offset,
int length,
ReservedValueSupplier reservedValueSupplier = null)
{
var newPosition = CLOSED;
if (!_isClosed)
{
var limit = _positionLimit.Volatile;
ExclusiveTermAppender termAppender = _termAppenders[_activePartitionIndex];
long position = _termBeginPosition + this._termOffset;
if (position < limit)
{
int result;
if (length <= MaxPayloadLength)
{
result = termAppender.AppendUnfragmentedMessage(_termId, _termOffset, _headerWriter, buffer, offset, length, reservedValueSupplier);
}
else
{
CheckForMaxMessageLength(length);
result = termAppender.AppendFragmentedMessage(_termId, _termOffset, _headerWriter, buffer, offset, length, MaxPayloadLength, reservedValueSupplier);
}
newPosition = NewPosition(result);
}
else if (_conductor.IsPublicationConnected(LogBufferDescriptor.TimeOfLastStatusMessage(_logMetaDataBuffer)))
{
newPosition = BACK_PRESSURED;
}
else
{
newPosition = NOT_CONNECTED;
}
}
return(newPosition);
}
public long Offer(
UnsafeBuffer buffer,
int offset,
int length,
ReservedValueSupplier reservedValueSupplier = null)
{
var newPosition = CLOSED;
if (!_isClosed)
{
var limit = _positionLimit.Volatile;
ExclusiveTermAppender termAppender = _termAppenders[_activePartitionIndex];
long position = _termBeginPosition + _termOffset;
if (position < limit)
{
int result;
if (length <= MaxPayloadLength)
{
result = termAppender.AppendUnfragmentedMessage(_termId, _termOffset, _headerWriter, buffer,
offset, length, reservedValueSupplier);
}
else
{
CheckForMaxMessageLength(length);
result = termAppender.AppendFragmentedMessage(_termId, _termOffset, _headerWriter, buffer,
offset, length, MaxPayloadLength, reservedValueSupplier);
}
newPosition = NewPosition(result);
}
else
{
newPosition = BackPressureStatus(position, length);
}
}
return(newPosition);
}
public long AppendUnfragmentedMessage(HeaderWriter header, UnsafeBuffer srcBuffer, int srcOffset, int length, ReservedValueSupplier reservedValueSupplier)
#endif
{
int frameLength = length + DataHeaderFlyweight.HEADER_LENGTH;
int alignedLength = BitUtil.Align(frameLength, FrameDescriptor.FRAME_ALIGNMENT);
long rawTail = GetAndAddRawTail(alignedLength);
long termOffset = rawTail & 0xFFFFFFFFL;
UnsafeBuffer termBuffer = _termBuffer;
int termLength = termBuffer.Capacity;
long resultingOffset = termOffset + alignedLength;
if (resultingOffset > termLength)
{
resultingOffset = HandleEndOfLogCondition(termBuffer, termOffset, header, termLength, LogBufferDescriptor.TermId(rawTail));
}
else
{
int offset = (int)termOffset;
header.Write(termBuffer, offset, frameLength, LogBufferDescriptor.TermId(rawTail));
termBuffer.PutBytes(offset + DataHeaderFlyweight.HEADER_LENGTH, srcBuffer, srcOffset, length);
if (null != reservedValueSupplier)
{
long reservedValue = reservedValueSupplier(termBuffer, offset, frameLength);
termBuffer.PutLong(offset + DataHeaderFlyweight.RESERVED_VALUE_OFFSET, reservedValue);
}
FrameDescriptor.FrameLengthOrdered(termBuffer, offset, frameLength);
}
return(resultingOffset);
}
public virtual long AppendUnfragmentedMessage(HeaderWriter header, UnsafeBuffer srcBuffer, int srcOffset, int length, ReservedValueSupplier reservedValueSupplier)
public abstract long Offer(DirectBufferVector[] vectors, ReservedValueSupplier reservedValueSupplier = null);
/// <summary>
/// Non-blocking publish of a partial buffer containing a message.
/// </summary>
/// <param name="buffer"> containing message. </param>
/// <param name="offset"> offset in the buffer at which the encoded message begins. </param>
/// <param name="length"> in bytes of the encoded message. </param>
/// <returns> The new stream position, otherwise a negative error value <seealso cref="NOT_CONNECTED"/>, <seealso cref="BACK_PRESSURED"/>,
/// <seealso cref="ADMIN_ACTION"/> or <seealso cref="CLOSED"/>. </returns>
public long Offer(IDirectBuffer buffer, int offset, int length, ReservedValueSupplier reservedValueSupplier = null)
{
var newPosition = CLOSED;
if (!_isClosed)
{
var limit = _positionLimit.Volatile;
var partitionIndex = LogBufferDescriptor.ActivePartitionIndex(_logMetaDataBuffer);
var termAppender = _termAppenders[partitionIndex];
var rawTail = termAppender.RawTailVolatile();
var termOffset = rawTail & 0xFFFFFFFFL;
var position = LogBufferDescriptor.ComputeTermBeginPosition(LogBufferDescriptor.TermId(rawTail), _positionBitsToShift, InitialTermId) + termOffset;
if (position < limit)
{
long result;
if (length <= _maxPayloadLength)
{
result = termAppender.AppendUnfragmentedMessage(_headerWriter, buffer, offset, length, reservedValueSupplier);
}
else
{
CheckForMaxMessageLength(length);
result = termAppender.AppendFragmentedMessage(_headerWriter, buffer, offset, length, _maxPayloadLength, reservedValueSupplier);
}
newPosition = NewPosition(partitionIndex, (int) termOffset, position, result);
}
else if (_clientConductor.IsPublicationConnected(LogBufferDescriptor.TimeOfLastStatusMessage(_logMetaDataBuffer)))
{
newPosition = BACK_PRESSURED;
}
else
{
newPosition = NOT_CONNECTED;
}
}
return newPosition;
}
public abstract long Offer(
IDirectBuffer buffer,
int offset,
int length,
ReservedValueSupplier reservedValueSupplier = null);
/// <summary>
/// Append a fragmented message to the the term buffer.
/// The message will be split up into fragments of MTU length minus header.
/// </summary>
/// <param name="header"> for writing the default header. </param>
/// <param name="srcBuffer"> containing the message. </param>
/// <param name="srcOffset"> at which the message begins. </param>
/// <param name="length"> of the message in the source buffer. </param>
/// <param name="maxPayloadLength"> that the message will be fragmented into. </param>
/// /// <param name="reservedValueSupplier"><see cref="ReservedValueSupplier"/> for the frame</param>
/// <returns> the resulting offset of the term after the append on success otherwise <seealso cref="#TRIPPED"/> or <seealso cref="#FAILED"/>
/// packed with the termId if a padding record was inserted at the end. </returns>
public long AppendFragmentedMessage(HeaderWriter header, IDirectBuffer srcBuffer, int srcOffset, int length,
int maxPayloadLength, ReservedValueSupplier reservedValueSupplier)
{
int numMaxPayloads = length/maxPayloadLength;
int remainingPayload = length%maxPayloadLength;
int lastFrameLength = remainingPayload > 0
? BitUtil.Align(remainingPayload + DataHeaderFlyweight.HEADER_LENGTH, FrameDescriptor.FRAME_ALIGNMENT)
: 0;
int requiredLength = (numMaxPayloads*(maxPayloadLength + DataHeaderFlyweight.HEADER_LENGTH)) +
lastFrameLength;
long rawTail = GetAndAddRawTail(requiredLength);
int termId = TermId(rawTail);
long termOffset = rawTail & 0xFFFFFFFFL;
IAtomicBuffer termBuffer = _termBuffer;
int termLength = termBuffer.Capacity;
long resultingOffset = termOffset + requiredLength;
if (resultingOffset > termLength)
{
resultingOffset = HandleEndOfLogCondition(termBuffer, termOffset, header, termLength, termId);
}
else
{
int offset = (int) termOffset;
byte flags = FrameDescriptor.BEGIN_FRAG_FLAG;
int remaining = length;
do
{
int bytesToWrite = Math.Min(remaining, maxPayloadLength);
int frameLength = bytesToWrite + DataHeaderFlyweight.HEADER_LENGTH;
int alignedLength = BitUtil.Align(frameLength, FrameDescriptor.FRAME_ALIGNMENT);
header.Write(termBuffer, offset, frameLength, termId);
termBuffer.PutBytes(offset + DataHeaderFlyweight.HEADER_LENGTH, srcBuffer,
srcOffset + (length - remaining), bytesToWrite);
if (remaining <= maxPayloadLength)
{
flags |= FrameDescriptor.END_FRAG_FLAG;
}
FrameDescriptor.FrameFlags(termBuffer, offset, flags);
if (null != reservedValueSupplier)
{
long reservedValue = reservedValueSupplier(termBuffer, offset, frameLength);
termBuffer.PutLong(offset + DataHeaderFlyweight.RESERVED_VALUE_OFFSET, reservedValue);
}
FrameDescriptor.FrameLengthOrdered(termBuffer, offset, frameLength);
flags = 0;
offset += alignedLength;
remaining -= bytesToWrite;
} while (remaining > 0);
}
return resultingOffset;
}
/// <summary>
/// Append an unfragmented message to the the term buffer.
/// </summary>
/// <param name="header"> for writing the default header. </param>
/// <param name="srcBuffer"> containing the message. </param>
/// <param name="srcOffset"> at which the message begins. </param>
/// <param name="length"> of the message in the source buffer. </param>
/// <param name="reservedValueSupplier"><see cref="ReservedValueSupplier"/> for the frame</param>
/// <returns> the resulting offset of the term after the append on success otherwise <seealso cref="TRIPPED"/> or <seealso cref="FAILED"/>
/// packed with the termId if a padding record was inserted at the end. </returns>
public virtual long AppendUnfragmentedMessage(HeaderWriter header, IDirectBuffer srcBuffer, int srcOffset, int length, ReservedValueSupplier reservedValueSupplier)
{
int frameLength = length + DataHeaderFlyweight.HEADER_LENGTH;
int alignedLength = BitUtil.Align(frameLength, FrameDescriptor.FRAME_ALIGNMENT);
long rawTail = GetAndAddRawTail(alignedLength);
long termOffset = rawTail & 0xFFFFFFFFL;
IAtomicBuffer termBuffer = _termBuffer;
int termLength = termBuffer.Capacity;
long resultingOffset = termOffset + alignedLength;
if (resultingOffset > termLength)
{
resultingOffset = HandleEndOfLogCondition(termBuffer, termOffset, header, termLength, TermId(rawTail));
}
else
{
int offset = (int) termOffset;
header.Write(termBuffer, offset, frameLength, TermId(rawTail));
termBuffer.PutBytes(offset + DataHeaderFlyweight.HEADER_LENGTH, srcBuffer, srcOffset, length);
if (null != reservedValueSupplier)
{
long reservedValue = reservedValueSupplier(termBuffer, offset, frameLength);
termBuffer.PutLong(offset + DataHeaderFlyweight.RESERVED_VALUE_OFFSET, reservedValue);
}
FrameDescriptor.FrameLengthOrdered(termBuffer, offset, frameLength);
}
return resultingOffset;
}
public int AppendFragmentedMessage(
int termId,
int termOffset,
HeaderWriter header,
DirectBufferVector[] vectors,
int length,
int maxPayloadLength,
ReservedValueSupplier reservedValueSupplier)
{
int numMaxPayloads = length / maxPayloadLength;
int remainingPayload = length % maxPayloadLength;
int lastFrameLength = remainingPayload > 0
? BitUtil.Align(remainingPayload + DataHeaderFlyweight.HEADER_LENGTH, FrameDescriptor.FRAME_ALIGNMENT)
: 0;
int requiredLength = (numMaxPayloads * (maxPayloadLength + DataHeaderFlyweight.HEADER_LENGTH)) +
lastFrameLength;
UnsafeBuffer termBuffer = _termBuffer;
int termLength = termBuffer.Capacity;
int resultingOffset = termOffset + requiredLength;
PutRawTailOrdered(termId, resultingOffset);
if (resultingOffset > termLength)
{
resultingOffset = HandleEndOfLogCondition(termBuffer, termOffset, header, termLength, termId);
}
else
{
int frameOffset = termOffset;
byte flags = FrameDescriptor.BEGIN_FRAG_FLAG;
int remaining = length;
int vectorIndex = 0;
int vectorOffset = 0;
do
{
int bytesToWrite = Math.Min(remaining, maxPayloadLength);
int frameLength = bytesToWrite + DataHeaderFlyweight.HEADER_LENGTH;
int alignedLength = BitUtil.Align(frameLength, FrameDescriptor.FRAME_ALIGNMENT);
header.Write(termBuffer, frameOffset, frameLength, termId);
int bytesWritten = 0;
int payloadOffset = frameOffset + DataHeaderFlyweight.HEADER_LENGTH;
do
{
var vector = vectors[vectorIndex];
int vectorRemaining = vector.length - vectorOffset;
int numBytes = Math.Min(bytesToWrite - bytesWritten, vectorRemaining);
termBuffer.PutBytes(payloadOffset, vector.buffer, vector.offset + vectorOffset, numBytes);
bytesWritten += numBytes;
payloadOffset += numBytes;
vectorOffset += numBytes;
if (vectorRemaining <= numBytes)
{
vectorIndex++;
vectorOffset = 0;
}
} while (bytesWritten < bytesToWrite);
if (remaining <= maxPayloadLength)
{
flags |= FrameDescriptor.END_FRAG_FLAG;
}
FrameDescriptor.FrameFlags(termBuffer, frameOffset, flags);
if (null != reservedValueSupplier)
{
long reservedValue = reservedValueSupplier(termBuffer, frameOffset, frameLength);
termBuffer.PutLong(frameOffset + DataHeaderFlyweight.RESERVED_VALUE_OFFSET, reservedValue, ByteOrder.LittleEndian);
}
FrameDescriptor.FrameLengthOrdered(termBuffer, frameOffset, frameLength);
flags = 0;
frameOffset += alignedLength;
remaining -= bytesToWrite;
} while (remaining > 0);
}
return(resultingOffset);
}
public virtual int AppendUnfragmentedMessage(HeaderWriter header, DirectBufferVector[] vectors, int length, ReservedValueSupplier reservedValueSupplier, int activeTermId)
