public long Claim(HeaderWriter header, int length, BufferClaim bufferClaim) { 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)); bufferClaim.Wrap(termBuffer, offset, frameLength); } return(resultingOffset); }
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 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 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); }