public void ReadConsistentTest1()
{
Span <CoinEvent> events = stackalloc CoinEvent[3];
events[0] = new CoinEvent(_1, CoinEventKind.Production);
events[1] = new CoinEvent(_2_0, CoinEventKind.Consumption);
events[2] = new CoinEvent(_2_1, CoinEventKind.Consumption);
var hasEvents = _lineage.TryGetEventsInContext(events, _2_0, out var production, out var consumption);
Assert.Equal(production, _1);
Assert.Equal(consumption, _2_0);
Assert.True(hasEvents);
}
public bool TryGet(ulong outpointHash, ref Outpoint outpoint, BlockAlias context, ILineage lineage, out Coin coin,
out BlockAlias production, out BlockAlias consumption)
{
production = BlockAlias.Undefined;
consumption = BlockAlias.Undefined;
if (_coins.TryGetValue(outpoint, out var fatCoin))
{
foreach (var ev in fatCoin.Events)
{
if (ev.Kind == CoinEventKind.Production)
{
production = ev.BlockAlias;
}
if (ev.Kind == CoinEventKind.Consumption)
{
consumption = ev.BlockAlias;
}
}
if (lineage == null || lineage.TryGetEventsInContext(fatCoin.Events.ToArray(), context, out production, out consumption))
{
coin = fatCoin.Coin;
return(true);
}
}
coin = Coin.Empty;
return(false);
}
public bool TryGet(ulong outpointHash, ref Outpoint outpoint, BlockAlias context, ILineage lineage,
out Coin coin, out BlockAlias production, out BlockAlias consumption)
{
var sectorIndex = (uint)(outpointHash % (uint)_store.SectorCount);
production = BlockAlias.Undefined;
consumption = BlockAlias.Undefined;
// Check layer 0.
var pack0 = _store.Read(layerIndex: 0, sectorIndex);
if (pack0.TryGet(ref outpoint, out coin))
{
return(lineage.TryGetEventsInContext(coin.Events, context, out production, out consumption));
}
var sig = OutpointSig.From(outpointHash);
// Layer 0 has a probabilistic filter. No false negative are possible.
if (!pack0.PositiveMatch(sig))
{
return(false);
}
// Check next layers.
for (var layerIndex = 1; layerIndex < _store.LayerCount; layerIndex++)
{
var packN = _store.Read(layerIndex: layerIndex, sectorIndex);
if (packN.TryGet(ref outpoint, out coin))
{
return(lineage.TryGetEventsInContext(coin.Events, context, out production, out consumption));
}
}
// Not found, it was a false positive on the probabilistic filter.
return(false);
}