public async Task <FdbRangeChunk> GetRangeAsync(FdbKeySelector beginInclusive, FdbKeySelector endExclusive, FdbRangeOptions options, int iteration, bool snapshot, CancellationToken cancellationToken)
{
Contract.Requires(beginInclusive.Key.HasValue && endExclusive.Key.HasValue && options != null);
cancellationToken.ThrowIfCancellationRequested();
//TODO: check system keys
//Trace.WriteLine("## GetRange " + beginInclusive + " <= k < " + endExclusive + ", limit=" + options.Limit + ", reverse=" + options.Reverse + ", snapshot=" + snapshot);
lock (m_buffer)
{
beginInclusive = m_buffer.InternSelector(beginInclusive);
endExclusive = m_buffer.InternSelector(endExclusive);
}
// we need the read version
EnsureHasReadVersion();
options = FdbRangeOptions.EnsureDefaults(options, null, null, FdbStreamingMode.Iterator, false);
options.EnsureLegalValues();
var result = await m_db.GetRangeAtVersion(beginInclusive, endExclusive, options.Limit ?? 0, options.TargetBytes ?? 0, options.Mode.Value, iteration, options.Reverse.Value, m_readVersion.Value).ConfigureAwait(false);
if (!snapshot)
{
lock (m_lock)
{
//TODO: use the result to create the conflict range (between the resolver key and the returned key)
//AddReadConflict_NeedsLocking(range);
}
}
return(result);
}
