public void TryAddTest()
{
TryAddTestFunctions functions = new();
using var session = fht.For(functions).NewSession <TryAddTestFunctions>();
Status status;
var key = 1;
var value1 = new RMWValue {
value = 1
};
var value2 = new RMWValue {
value = 2
};
functions.noNeedInitialUpdater = true;
status = session.RMW(ref key, ref value1); // needInitialUpdater false + NOTFOUND
Assert.IsFalse(status.Found, status.ToString());
Assert.IsFalse(value1.flag); // InitialUpdater is not called
functions.noNeedInitialUpdater = false;
status = session.RMW(ref key, ref value1); // InitialUpdater + NotFound
Assert.IsFalse(status.Found, status.ToString());
Assert.IsTrue(value1.flag); // InitialUpdater is called
status = session.RMW(ref key, ref value2); // InPlaceUpdater + Found
Assert.IsTrue(status.Record.InPlaceUpdated, status.ToString());
fht.Log.Flush(true);
status = session.RMW(ref key, ref value2); // NeedCopyUpdate returns false, so RMW returns simply Found
Assert.IsTrue(status.Found, status.ToString());
fht.Log.FlushAndEvict(true);
status = session.RMW(ref key, ref value2, new(StatusCode.Found), 0); // PENDING + NeedCopyUpdate + Found
Assert.IsTrue(status.IsPending, status.ToString());
session.CompletePendingWithOutputs(out var outputs, true);
var output = new RMWValue();
(status, output) = GetSinglePendingResult(outputs);
Assert.IsTrue(status.Found, status.ToString()); // NeedCopyUpdate returns false, so RMW returns simply Found
// Test stored value. Should be value1
status = session.Read(ref key, ref value1, ref output, new(StatusCode.Found), 0);
Assert.IsTrue(status.IsPending, status.ToString());
session.CompletePending(true);
status = session.Delete(ref key);
Assert.IsTrue(!status.Found && status.Record.Created, status.ToString());
session.CompletePending(true);
fht.Log.FlushAndEvict(true);
status = session.RMW(ref key, ref value2, new(StatusCode.NotFound | StatusCode.CreatedRecord), 0); // PENDING + InitialUpdater + NOTFOUND
Assert.IsTrue(status.IsPending, status.ToString());
session.CompletePending(true);
}
public void TryAddTest()
{
using var session = fht.For(new TryAddTestFunctions()).NewSession <TryAddTestFunctions>();
Status status;
var key = 1;
var value1 = new RMWValue {
value = 1
};
var value2 = new RMWValue {
value = 2
};
status = session.RMW(ref key, ref value1); // InitialUpdater + NOTFOUND
Assert.IsTrue(status == Status.NOTFOUND);
Assert.IsTrue(value1.flag); // InitialUpdater is called
status = session.RMW(ref key, ref value2); // InPlaceUpdater + OK
Assert.IsTrue(status == Status.OK);
fht.Log.Flush(true);
status = session.RMW(ref key, ref value2); // NeedCopyUpdate + OK
Assert.IsTrue(status == Status.OK);
fht.Log.FlushAndEvict(true);
status = session.RMW(ref key, ref value2, Status.OK, 0); // PENDING + NeedCopyUpdate + OK
Assert.IsTrue(status == Status.PENDING);
session.CompletePending(true);
// Test stored value. Should be value1
var output = new RMWValue();
status = session.Read(ref key, ref value1, ref output, Status.OK, 0);
Assert.IsTrue(status == Status.PENDING);
session.CompletePending(true);
status = session.Delete(ref key);
Assert.IsTrue(status == Status.OK);
session.CompletePending(true);
fht.Log.FlushAndEvict(true);
status = session.RMW(ref key, ref value2, Status.NOTFOUND, 0); // PENDING + InitialUpdater + NOTFOUND
Assert.IsTrue(status == Status.PENDING);
session.CompletePending(true);
}