public void Restore()
{
var restoreEnumerator = persistentStorage.Restore().GetEnumerator();
if (!restoreEnumerator.MoveNext())
{
persistedMessageId = lastMessageId = -1;
data = new InfiniteArray <Message>(0, dataArrayOptions);
RestoreSubscriptions();
return;
}
data = new InfiniteArray <Message>(restoreEnumerator.Current.ID, dataArrayOptions);
data.Add(restoreEnumerator.Current);
while (restoreEnumerator.MoveNext())
{
data.Add(restoreEnumerator.Current);
}
currentData = new DataSnapshot()
{
StartMessageId = data.GetFirstItemIndex(),
Data = data.GetDataBlocks()
};
persistedMessageId = lastMessageId = currentData.Data[^ 1].Span[^ 1].ID;
public void Write(WriteManyRequest request)
{
lock (sync)
{
if (disposed)
{
throw new TopicWriterException($"Cannot write to disposed {nameof(TopicWriter)}");
}
var writeResult = topic.Write(request.Messages.Span);
idMap.Add(new IdPair(request.SequenceNumber, writeResult.LastInsertedIndex));
}
}
internal TopicWriteResult Write(ReadOnlySpan <ReadOnlyMemory <byte> > messages)
{
lock (dataSync)
{
var enqueuedTime = DateTime.UtcNow;
var newMessages = new Message[messages.Length];
for (int i = 0; i < newMessages.Length; i++)
{
newMessages[i] = new Message(lastMessageId + i + 1, enqueuedTime, messages[i]);
}
var ind = data.Add(newMessages);
persistentStorage.Write(newMessages);
lastMessageId += messages.Length;
return(new TopicWriteResult(ind, enqueuedTime));
}
}