public Message Add(MessageIdData messageId, uint redeliveryCount, MessageMetadata metadata, ReadOnlySequence <byte> data)
{
lock (_lock)
{
if (_trackBatches)
{
_batches.AddLast(new Batch(messageId, metadata.NumMessagesInBatch));
}
long index = 0;
for (var i = 0; i < metadata.NumMessagesInBatch; ++i)
{
var singleMetadataSize = data.ReadUInt32(index, true);
index += 4;
var singleMetadata = Serializer.Deserialize <SingleMessageMetadata>(data.Slice(index, singleMetadataSize));
index += singleMetadataSize;
var singleMessageId = new MessageId(messageId.LedgerId, messageId.EntryId, messageId.Partition, i);
var message = new Message(singleMessageId, redeliveryCount, metadata, singleMetadata, data.Slice(index, singleMetadata.PayloadSize));
_messages.Enqueue(message);
index += (uint)singleMetadata.PayloadSize;
}
return(_messages.Dequeue());
}
}
private static bool HasValidCheckSum(ReadOnlySequence <byte> input) => input.ReadUInt32(Constants.MagicNumber.Length, true) == Crc32C.Calculate(input.Slice(Constants.MetadataSizeOffset));