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;
private long FindSequenceNumberToAck(long persistedId)
{
lock (sync)
{
if (disposed)
{
// do not throw exception here
return(-1);
}
var blocks = idMap.GetDataBlocks();
var ind = idMap.GetLastItemIndex();
for (int i = blocks.Length - 1; i >= 0; i--)
{
var m = blocks[i].Span;
for (int j = m.Length - 1; j >= 0; j--)
{
if (m[j].ID <= persistedId)
{
var idToAck = m[j].WriterID;
idMap.FreeTo(ind + 1);
return(idToAck);
}
ind--;
}
}
}
return(-1);
}
