public async Task CouldWriteUsingDswAsync()
{
#pragma warning disable 618
Settings.DoAdditionalCorrectnessChecks = false;
#pragma warning restore 618
var path = TestUtils.GetPath();
var repoName = "CouldWriteAndReadLog";
var processConfig = new ProcessConfig(path);
StartupConfig.StreamLogBufferPoolFlags = LMDBEnvironmentFlags.NoSync;
StartupConfig.StreamBlockIndexFlags = LMDBEnvironmentFlags.NoSync;
var slm = new StreamLogManager(processConfig, repoName, null, 20 * 1024, disableNotificationLog: false,
disablePacker: false);
var streamId = (StreamLogId)42L;
var count = TestUtils.GetBenchCount(50_000_000, 1_000);
var countSlice = TestUtils.GetBenchCount(10_000_000, 100);
short valueSize = (short)(Timestamp.Size + Unsafe.SizeOf <long>());
var state = slm.StateStorage.GetState(streamId);
state.CheckInit(streamId, valueSize, StreamLogFlags.IsBinary);
var sl = new StreamLog(slm, state, 8_000_000, "test_stream");
Marshal.WriteInt64(sl.State.StatePointer + StreamLogState.StreamLogStateRecord.LockerOffset, 0);
slm.OpenStreams.TryAdd(42, sl);
var writer = new DataStreamWriter <long>(sl, KeySorting.NotEnforced, WriteMode.BatchWrite);
try
{
var bench = Benchmark.Run("Write", countSlice);
for (long i = 0; i < count; i++)
{
var addedVersion = await writer.TryAppend(100000L + i);
if (addedVersion == 0)
{
Assert.Fail();
}
if (i > 0 && i % countSlice == 0)
{
bench.Dispose();
bench = Benchmark.Run("Write", countSlice);
}
}
bench.Dispose();
}
catch (Exception ex)
{
Console.WriteLine($"EXCEPTION DURING WRITE: " + ex);
throw;
}
for (int r = 0; r < 10; r++)
{
using (Benchmark.Run("Read", count))
{
var slc = sl.GetCursor();
var dsc = new DataStreamCursor <long>(slc);
var ds = dsc.Source;
var c = ds.GetCursor();
var cnt = 0L;
while (c.MoveNext())
{
var cv = c.CurrentValue;
var ts = cv.Timestamp;
if (ts == default)
{
Assert.Fail("ts == default");
}
var value = cv.Value;
if (value != 100000L + cnt)
{
Assert.Fail($"value {value} != cnt {100000L + cnt}");
}
cnt++;
}
c.Dispose();
if (cnt != count)
{
Assert.Fail($"cnt {cnt } != count {count}");
}
}
}
slm.BufferPool.PrintBuffersAfterPoolDispose = true;
Thread.Sleep(500);
// TODO (!) Fix disposal
// sl.Dispose();
// slm.Dispose();
Benchmark.Dump();
}