inet::physicallayer::ApskPhyHeaderSerializer Class Reference

#include <ApskPhyHeaderSerializer.h>

Inheritance diagram for inet::physicallayer::ApskPhyHeaderSerializer:

Public Member Functions
virtual void	serialize (MemoryOutputStream &stream, const Ptr< const Chunk > &chunk, b offset, b length) const
	Serializes a chunk into a stream by writing the bytes representing the chunk at the end of the stream. More...
virtual const Ptr< Chunk >	deserialize (MemoryInputStream &stream, const std::type_info &typeInfo) const
	Deserializes a chunk from a stream by reading the bytes at the current position of the stream. More...

Additional Inherited Members
Static Public Attributes inherited from inet::ChunkSerializer
static b	totalSerializedLength = b(0)
static b	totalDeserializedLength = b(0)

Member Function Documentation

deserialize()

const Ptr< Chunk > inet::physicallayer::ApskPhyHeaderSerializer::deserialize ( MemoryInputStream &  stream, const std::type_info &  typeInfo  ) const

virtual

Deserializes a chunk from a stream by reading the bytes at the current position of the stream.

The returned chunk will be an instance of the provided type. The current stream position is updated according to the length of the returned chunk.

Implements inet::ChunkSerializer.

{
    auto startPosition = stream.getPosition();
    auto phyHeader = makeShared<ApskPhyHeader>();
    b headerLength = b(stream.readUint16Be());
    phyHeader->setHeaderLengthField(headerLength);
    phyHeader->setChunkLength(headerLength);
    phyHeader->setPayloadLengthField(b(stream.readUint16Be()));
    auto crc = stream.readUint16Be();
    phyHeader->setCrc(crc);
    phyHeader->setCrcMode(crc == 0 ? CRC_DISABLED : CRC_COMPUTED);
    // TODO read protocol
 
    b curLength = stream.getPosition() - startPosition;
    b remainders = headerLength - curLength;
    if (remainders < b(0)) {
        phyHeader->markIncorrect();
    }
    else {
        uint8_t remainderbits = remainders.get() % 8;
        stream.readByteRepeatedly('?', B(remainders - b(remainderbits)).get());
        stream.readBitRepeatedly(false, remainderbits);
    }
    phyHeader->setChunkLength(stream.getPosition() - startPosition);
    return phyHeader;
}

serialize()

void inet::physicallayer::ApskPhyHeaderSerializer::serialize ( MemoryOutputStream &  stream, const Ptr< const Chunk > &  chunk, b  offset, b  length  ) const

virtual

Serializes a chunk into a stream by writing the bytes representing the chunk at the end of the stream.

The offset and length parameters allow to write only a part of the data.

Implements inet::ChunkSerializer.

{
    auto startPosition = stream.getLength();
    const auto& phyHeader = staticPtrCast<const ApskPhyHeader>(chunk);
    stream.writeUint16Be(b(phyHeader->getHeaderLengthField()).get());
    stream.writeUint16Be(b(phyHeader->getPayloadLengthField()).get());
    auto crcMode = phyHeader->getCrcMode();
    if (crcMode != CRC_DISABLED && crcMode != CRC_COMPUTED)
        throw cRuntimeError("Cannot serialize Apsk Phy header without turned off or properly computed CRC, try changing the value of crcMode parameter for Udp");
    stream.writeUint16Be(phyHeader->getCrc());
    // TODO write protocol
 
    b remainders = phyHeader->getChunkLength() - (stream.getLength() - startPosition);
    if (remainders < b(0))
        throw cRuntimeError("ApskPhyHeader length = %d smaller than required %d bytes", (int)B(phyHeader->getChunkLength()).get(), (int)B(stream.getLength() - startPosition).get());
    uint8_t remainderbits = remainders.get() % 8;
    stream.writeByteRepeatedly('?', B(remainders - b(remainderbits)).get());
    stream.writeBitRepeatedly(false, remainderbits);
}

---

The documentation for this class was generated from the following files:

• ApskPhyHeaderSerializer.h
• ApskPhyHeaderSerializer.cc