public StreamBlockRecordCursor(StreamBlockIndex blockIndex, StreamLogId slid)
{
_blockIndex = blockIndex;
_slid = slid;
_chunkCursorState = CursorState.Initialized;
_cursorCurrentKey = default;
_chunkCursorCurrent = default;
}
internal StreamLogState(StreamLogId streamLogId, IntPtr statePointer)
{
Debug.Assert(BitUtil.IsAligned((long)statePointer, 64), "StreamLogState buffer must be aligned to 64 bytes.");
_statePointer = (byte *)statePointer;
if (StreamLogId != default && StreamLogId != streamLogId)
{
ThrowHelper.ThrowArgumentException($"Wrong existing StreamId {StreamLogId} in StreamLogState vs expected {streamLogId}.");
}
}
public bool GetIsCompleted(StreamLogId streamLogId)
{
var streamId = (long)streamLogId;
using (var txn = Environment.BeginReadOnlyTransaction())
using (var c = _blocksDb.OpenReadOnlyCursor(txn))
{
StreamBlockRecord value = default;
if (c.TryGet(ref streamId, ref value, CursorGetOption.Set) &&
c.TryGet(ref streamId, ref value, CursorGetOption.LastDuplicate))
{
return(value.Version == CompletedVersion);
}
return(false);
}
}
public StreamLogNotification(StreamLogId slid,
bool rotated = false,
bool completed = false,
bool fromUpstream = false,
bool priority = false)
{
byte tag = 0;
ulong ustreamId;
if (slid.IsInternal)
{
tag |= InternalMask;
ustreamId = (ulong)-(long)(slid);
}
else
{
ustreamId = (ulong)(long)slid;
}
if (ustreamId > MaxStreamId)
{
ThrowArgumentEx();
}
if (priority)
{
tag |= PriorityMask;
}
if (rotated)
{
tag |= RotateMask;
}
if (completed)
{
tag |= CompleteMask;
}
if (fromUpstream)
{
tag |= UpstreamMask;
}
_value = (ulong)tag << TagOffset | ustreamId;
}
public Series <Timestamp, StreamBlockRecord, StreamBlockRecordTimestampCursor> GetBlockRecordTimeSeries(StreamLogId streamId)
{
return(GetBlockRecordTimestampCursor(streamId).Source);
}
public Series <ulong, StreamBlockRecord, StreamBlockRecordCursor> GetBlockRecordSeries(StreamLogId streamId)
{
return(GetBlockRecordCursor(streamId).Source);
}
public StreamBlockRecordTimestampCursor GetBlockRecordTimestampCursor(StreamLogId streamId)
{
return(new StreamBlockRecordTimestampCursor(this, streamId));
}
public BlockKey(StreamLogId slid, ulong version)
{
Slid = slid;
Version = version;
}
public CacheKey(StreamLogId slid, ulong version)
{
Slid = slid;
Version = version;
}
