/// <summary>
/// ZRANGE, ZREVRANGE http://redis.io/commands/zrange http://redis.io/commands/zrevrange
/// </summary>
public Task <SortedSetResultWithRank <T>[]> RangeByRankWithScoresAndRank(long start = 0, long stop = -1, Order order = Order.Ascending, CommandFlags commandFlags = CommandFlags.None)
{
return(TraceHelper.RecordSendAndReceive(Settings, Key, CallType, async() =>
{
SortedSetEntry[] rs;
long startIndex = 0;
if (start >= 0)
{
rs = await Command.SortedSetRangeByRankWithScoresAsync(Key, start, stop, order, commandFlags).ForAwait();
startIndex = start;
}
else
{
var tx = CreateTransaction();
var lengthFuture = tx.SortedSetLengthAsync(Key, flags: commandFlags);
var rsFuture = tx.SortedSetRangeByRankWithScoresAsync(Key, start, stop, order, commandFlags);
await tx.ExecuteAsync(commandFlags).ForAwait();
rs = await rsFuture.ForAwait();
var length = await lengthFuture.ForAwait();
startIndex = length + start;
}
long size = 0;
var result = rs.Select((x, i) =>
{
long s;
var v = Settings.ValueConverter.Deserialize <T>(x.Element, out s);
size += s;
var rank = startIndex + i;
return new SortedSetResultWithRank <T>(v, x.Score, rank);
}).ToArray();
return Tracing.CreateSentAndReceived(new { start, stop, order }, sizeof(long) * 2, result, size);
}));
}