public async void ReadyUpfront()
{
var rsm = new SlimResume();
rsm.Signal();
await rsm;
}
public async void SignalLater()
{
var rsm = new SlimResume();
var t = Task.Delay(100)
.ContinueWith(t0 => rsm.Signal());
await rsm;
await t;
}
public void OneAwaiterMax()
{
var rsm = new SlimResume();
rsm.OnCompleted(() => { });
try
{
rsm.OnCompleted(() => { });
Assert.False(true, "Should have thrown");
}
catch (InvalidOperationException)
{
// expected
}
}
public async void Race()
{
for (var i = 0; i < 10_000; i++)
{
var rsm = new SlimResume();
var wip = 2;
var t1 = Task.Factory.StartNew(() =>
{
if (Interlocked.Decrement(ref wip) != 0)
{
while (Volatile.Read(ref wip) != 0)
{
}
}
rsm.Signal();
}, TaskCreationOptions.LongRunning);
var t2 = Task.Factory.StartNew(async() =>
{
if (Interlocked.Decrement(ref wip) != 0)
{
while (Volatile.Read(ref wip) != 0)
{
}
}
await rsm;
}, TaskCreationOptions.LongRunning);
await t1;
await t2;
}
}