void Prepare(out SimpleFunctions f,
out ClientSession <AdId, NumClicks, NumClicks, NumClicks, Empty, SimpleFunctions> s1,
out UnsafeContext <AdId, NumClicks, NumClicks, NumClicks, Empty, SimpleFunctions> uc1,
out ThreadSession <AdId, NumClicks, NumClicks, NumClicks, Empty, SimpleFunctions> s2,
long toVersion = -1)
{
f = new SimpleFunctions();
// We should be in REST, 1
Assert.IsTrue(SystemState.Equal(SystemState.Make(Phase.REST, 1), fht1.SystemState));
// Take index checkpoint for recovery purposes
fht1.TryInitiateIndexCheckpoint(out _);
fht1.CompleteCheckpointAsync().AsTask().GetAwaiter().GetResult();
// Index checkpoint does not update version, so
// we should still be in REST, 1
Assert.IsTrue(SystemState.Equal(SystemState.Make(Phase.REST, 1), fht1.SystemState));
NumClicks value;
s1 = fht1.For(f).NewSession <SimpleFunctions>("foo");
for (int key = 0; key < numOps; key++)
{
value.numClicks = key;
s1.Upsert(ref inputArray[key], ref value, Empty.Default, key);
}
// Ensure state machine needs no I/O wait during WAIT_FLUSH
fht1.Log.ShiftReadOnlyAddress(fht1.Log.TailAddress, true);
// Create unsafe context and hold epoch to prepare for manual state machine driver
uc1 = s1.GetUnsafeContext();
uc1.ResumeThread();
// Start session s2 on another thread for testing
s2 = fht1.For(f).CreateThreadSession(f);
// We should be in REST, 1
Assert.IsTrue(SystemState.Equal(SystemState.Make(Phase.REST, 1), fht1.SystemState));
fht1.TryInitiateHybridLogCheckpoint(out _, CheckpointType.FoldOver, targetVersion: toVersion);
// We should be in PREPARE, 1
Assert.IsTrue(SystemState.Equal(SystemState.Make(Phase.PREPARE, 1), fht1.SystemState));
}
void Prepare(out SimpleFunctions f, out ClientSession <AdId, NumClicks, NumClicks, NumClicks, Empty, SimpleFunctions> s1, out ThreadSession <AdId, NumClicks, NumClicks, NumClicks, Empty, SimpleFunctions> s2)
{
f = new SimpleFunctions();
// We should be in REST, 1
Assert.IsTrue(SystemState.Equal(SystemState.Make(Phase.REST, 1), fht1.SystemState));
// Take index checkpoint for recovery purposes
fht1.TakeIndexCheckpoint(out _);
fht1.CompleteCheckpointAsync().GetAwaiter().GetResult();
// Index checkpoint does not update version, so
// we should still be in REST, 1
Assert.IsTrue(SystemState.Equal(SystemState.Make(Phase.REST, 1), fht1.SystemState));
NumClicks value;
s1 = fht1.For <NumClicks, NumClicks, Empty>().NewSession(f, "foo", threadAffinitized: true);
for (int key = 0; key < numOps; key++)
{
value.numClicks = key;
s1.Upsert(ref inputArray[key], ref value, Empty.Default, key);
}
// Ensure state machine needs no I/O wait during WAIT_FLUSH
fht1.Log.ShiftReadOnlyAddress(fht1.Log.TailAddress, true);
// Start affinitized session s2 on another thread for testing
s2 = fht1.For <NumClicks, NumClicks, Empty>().CreateThreadSession(f, threadAffinized: true);
// We should be in REST, 1
Assert.IsTrue(SystemState.Equal(SystemState.Make(Phase.REST, 1), fht1.SystemState));
fht1.TakeHybridLogCheckpoint(out _);
// We should be in PREPARE, 1
Assert.IsTrue(SystemState.Equal(SystemState.Make(Phase.PREPARE, 1), fht1.SystemState));
}
