public void CurrentReadCount_WhenInvokedInParallel_ShouldNotThrowLockingException(int totalOperations, int maxDegreeOfParallelism)
{
var readerWriterLockSlimOf = new ReaderWriterLockSlimOf <object>();
var options = new ParallelOptions
{
MaxDegreeOfParallelism = maxDegreeOfParallelism,
};
var exceptions = new ConcurrentBag <Exception>();
var result = Parallel.For(0, totalOperations, options, state =>
{
try
{
readerWriterLockSlimOf.Instance = state;
var i1 = readerWriterLockSlimOf.Instance;
var i2 = readerWriterLockSlimOf.Instance;
var i3 = readerWriterLockSlimOf.Instance;
var i4 = readerWriterLockSlimOf.Instance;
var i5 = readerWriterLockSlimOf.Instance;
var numReaders = readerWriterLockSlimOf.CurrentReadCount;
readerWriterLockSlimOf.Instance = state;
var i6 = readerWriterLockSlimOf.Instance;
var i7 = readerWriterLockSlimOf.Instance;
var i8 = readerWriterLockSlimOf.Instance;
var i9 = readerWriterLockSlimOf.Instance;
var i10 = readerWriterLockSlimOf.Instance;
readerWriterLockSlimOf.Instance = state;
}
catch (Exception exc)
{
exceptions.Add(exc);
}
});
Assert.Empty(exceptions);
Assert.True(result.IsCompleted);
}
public void ShouldNotThrowLockingException()
{
var x = new ReaderWriterLockSlimOf <object>();
var options = new ParallelOptions
{
MaxDegreeOfParallelism = 25,
};
var result = Parallel.For(0, 1000 * 1000, options, state =>
{
x.Instance = state;
var i1 = x.Instance;
var i2 = x.Instance;
var i3 = x.Instance;
var i4 = x.Instance;
var i5 = x.Instance;
var numReaders = x.CurrentReadCount;
if (numReaders > 1)
{
Console.WriteLine($"Num Readers: {numReaders}");
}
x.Instance = state;
var i6 = x.Instance;
var i7 = x.Instance;
var i8 = x.Instance;
var i9 = x.Instance;
var i10 = x.Instance;
x.Instance = state;
});
Console.WriteLine(x.Instance);
result.IsCompleted.Should().BeTrue();
}
