public void CouldNotMoveNextPreviousOnEmpty()
{
var s = new AppendSeries <int, int>();
var c = s.GetCursor();
Assert.IsFalse(c.MoveNext());
Assert.IsFalse(c.MovePrevious());
Assert.IsFalse(c.MoveFirst());
Assert.IsFalse(c.MoveLast());
s.Append(1, 1);
Assert.IsTrue(c.MoveNext());
Assert.IsFalse(c.MovePrevious());
Assert.IsTrue(c.MoveFirst());
Assert.IsTrue(c.MoveLast());
s.Append(2, 2);
Assert.IsTrue(c.MoveNext());
Assert.AreEqual(2, c.CurrentKey);
Assert.AreEqual(2, c.CurrentValue);
Assert.IsTrue(c.MovePrevious());
Assert.AreEqual(1, c.CurrentKey);
Assert.AreEqual(1, c.CurrentValue);
Assert.IsTrue(c.MoveFirst());
Assert.IsTrue(c.MoveLast());
c.Dispose();
s.Dispose();
}
public void CouldMoveAtOnNonEmpty(int count)
{
Assert.Fail("Need a proper MA test");
var s = new AppendSeries <int, int>();
for (int i = 1; i <= count; i++)
{
s.Append(i, i);
}
var searchValue = count / 2;
// TODO all corners all directions and all inner
var c = s.GetCursor();
Assert.IsTrue(c.MoveAt(searchValue, Lookup.GT));
Assert.AreEqual(searchValue + 1, c.CurrentValue);
Assert.AreEqual(searchValue + 1, c.CurrentKey);
Assert.IsTrue(c.MoveAt(searchValue, Lookup.GE));
Assert.IsTrue(c.MoveAt(searchValue, Lookup.EQ));
Assert.IsTrue(c.MoveAt(searchValue, Lookup.LE));
Assert.IsTrue(c.MoveAt(searchValue, Lookup.LT));
c.Dispose();
s.Dispose();
}
public void CouldMoveFirstLast(int count)
{
var s = new AppendSeries <int, int>();
for (int i = 1; i <= count; i++)
{
s.Append(i, i);
}
SCursor <int, int> c;
c = s.GetCursor();
Assert.IsTrue(c.MoveFirst());
Assert.IsTrue(c.MoveLast());
c.Dispose();
c = s.GetCursor();
Assert.IsTrue(c.MoveLast());
Assert.IsTrue(c.MoveFirst());
c.Dispose();
s.Dispose();
}
public void CouldMoveAtOnSingle()
{
Assert.Fail("Proper MA tests");
var s = new AppendSeries <int, int>();
s.Append(1, 1);
var c = s.GetCursor();
Assert.IsFalse(c.MoveAt(1, Lookup.GT));
Assert.IsTrue(c.MoveAt(1, Lookup.GE));
Assert.IsTrue(c.MoveAt(1, Lookup.EQ));
Assert.IsTrue(c.MoveAt(1, Lookup.LE));
Assert.IsFalse(c.MoveAt(1, Lookup.LT));
c.Dispose();
s.Dispose();
}
public void CouldMovePreviousFromInitialized(int count)
{
var s = new AppendSeries <int, int>();
for (int i = 1; i <= count; i++)
{
s.Append(i, i);
}
var c = s.GetCursor();
Assert.IsTrue(c.MovePrevious());
Assert.AreEqual(count, c.CurrentKey);
Assert.AreEqual(count, c.CurrentValue);
c.Dispose();
s.Dispose();
}
public async Task CouldReadDataStreamWhileWritingFromManyThreads()
{
var map = new AppendSeries <int, int>();
var writeCount = 0L;
var count = 1000_000_000;
var rounds = 1;
var writeTask = Task.Run(async() =>
{
using (Benchmark.Run("Write", count * rounds, true))
{
for (int j = 0; j < rounds; j++)
{
var t1 = Task.Run(() =>
{
try
{
for (int i = j * count; i < (j + 1) * count; i++)
{
map.DangerousTryAppend(i, i);
// Thread.SpinWait(10);
// Thread.Yield();
Interlocked.Increment(ref writeCount);
}
}
catch (Exception e)
{
Console.WriteLine(e);
throw;
}
});
await t1;
}
}
});
AsyncCursor <int, int, SCursor <int, int> > cursor = null;
var cnt = 0L;
var readTask = Task.Run(async() =>
{
for (int r = 0; r < 1; r++)
{
using (cursor = new AsyncCursor <int, int, SCursor <int, int> >(map.GetCursor()))
{
using (Benchmark.Run("Read", count * rounds, true))
{
try
{
while (await cursor.MoveNextAsync())
{
Interlocked.Increment(ref cnt);
// Thread.Sleep(1);
}
}
catch (Exception e)
{
Console.WriteLine(e);
throw;
}
// Left from coreclr 19161 tests, TODO remove when everything works OK
// here is a strong reference to cursor with side effects of printing to console
// Console.WriteLine("Last value: " + cursor.Current.Key);
// another strong reference after while loop, we dereference it's value and return from task
// lastKey1 = cursor.CurrentKey;
}
}
}
});
var monitor = true;
var monitorTask = Task.Run(async() =>
{
try
{
var previousR = cursor?.CurrentKey;
var previousW = Volatile.Read(ref writeCount);
while (monitor)
{
await Task.Delay(1000);
var r = cursor.CurrentKey;
var w = Volatile.Read(ref writeCount);
Console.WriteLine($"R: {r:N0} - {((r - previousR) / 1000000.0):N2} Mops \t | W: {w:N0}- {((w - previousW) / 1000000.0):N2} Mops");
if (r == previousR)
{
Console.WriteLine($"IsAwaiting {cursor.IsTaskAwating} IsCompl {cursor.IsCompleted} Counter {cursor._counter}");
}
previousR = r;
previousW = w;
// cursor.TryComplete(false);
}
}
catch (Exception e)
{
Console.WriteLine(e);
throw;
}
});
await writeTask;
Console.WriteLine("COMPLETE");
map.MarkReadOnly();
map.NotifyUpdate();
Console.WriteLine("Read after map complete:" + Interlocked.Read(ref cnt));
await readTask;
Console.WriteLine("Read after finish:" + Interlocked.Read(ref cnt));
// Console.WriteLine("Last key: " + lastKey);
Benchmark.Dump();
GC.KeepAlive(cursor);
map.Dispose();
monitor = false;
}
public void CouldMovePartialFromMoving(int count)
{
var s = new AppendSeries <int, int>();
for (int i = 1; i <= count; i++)
{
s.Append(i, i);
}
SCursor <int, int> c;
c = s.GetCursor();
c.MoveNext();
Assert.AreEqual(count - 1, c.Move(count * 2, true));
Assert.AreEqual(count, c.CurrentKey);
Assert.AreEqual(count, c.CurrentValue);
c.Dispose();
c = s.GetCursor();
c.MoveNext();
Assert.AreEqual(count - 1, c.Move(count * 200, true));
Assert.AreEqual(count, c.CurrentKey);
Assert.AreEqual(count, c.CurrentValue);
c.Dispose();
c = s.GetCursor();
c.MoveNext();
Assert.AreEqual(count - 1, c.Move(count + 1, true));
Assert.AreEqual(count, c.CurrentKey);
Assert.AreEqual(count, c.CurrentValue);
c.Dispose();
c = s.GetCursor();
c.MoveNext();
Assert.AreEqual(count - 1, c.Move(count, true));
Assert.AreEqual(count, c.CurrentKey);
Assert.AreEqual(count, c.CurrentValue);
c.Dispose();
// ---------
c = s.GetCursor();
c.MovePrevious();
Assert.AreEqual(-count + 1, c.Move(-count * 2, true));
Assert.AreEqual(1, c.CurrentKey);
Assert.AreEqual(1, c.CurrentValue);
c.Dispose();
c = s.GetCursor();
c.MovePrevious();
Assert.AreEqual(-count + 1, c.Move(-count * 200, true));
Assert.AreEqual(1, c.CurrentKey);
Assert.AreEqual(1, c.CurrentValue);
c.Dispose();
c = s.GetCursor();
c.MovePrevious();
Assert.AreEqual(-count + 1, c.Move(-(count + 1), true));
Assert.AreEqual(1, c.CurrentKey);
Assert.AreEqual(1, c.CurrentValue);
c.Dispose();
c = s.GetCursor();
c.MovePrevious();
Assert.AreEqual(-count + 1, c.Move(-count, true));
Assert.AreEqual(1, c.CurrentKey);
Assert.AreEqual(1, c.CurrentValue);
c.Dispose();
s.Dispose();
}
