private static async void AcquireWeakLockAndRelease(AsyncSharedLock sharedLock, AsyncCountdownEvent acquireEvent)
{
await Task.Delay(100);
await sharedLock.Acquire(false, TimeSpan.Zero);
acquireEvent.Signal();
await Task.Delay(100);
sharedLock.Release();
}
public static async Task StrongToWeakLockTransition()
{
using (var acquireEvent = new AsyncCountdownEvent(2L))
using (var sharedLock = new AsyncSharedLock(3))
{
await sharedLock.Acquire(true, TimeSpan.Zero);
AcquireWeakLock(sharedLock, acquireEvent);
AcquireWeakLock(sharedLock, acquireEvent);
sharedLock.Release();
True(await acquireEvent.Wait(TimeSpan.FromMinutes(1)));
Equal(1, sharedLock.RemainingCount);
}
}
public static async Task WeakToStrongLockTransition()
{
using (var acquireEvent = new AsyncCountdownEvent(3L))
using (var sharedLock = new AsyncSharedLock(3))
{
AcquireWeakLockAndRelease(sharedLock, acquireEvent);
AcquireWeakLockAndRelease(sharedLock, acquireEvent);
AcquireWeakLockAndRelease(sharedLock, acquireEvent);
await acquireEvent.Wait();
await sharedLock.Acquire(true, TimeSpan.FromMinutes(1));
Equal(0, sharedLock.RemainingCount);
}
}
private static async void AcquireWeakLock(AsyncSharedLock sharedLock, AsyncCountdownEvent acquireEvent)
{
await sharedLock.Acquire(false, CancellationToken.None);
acquireEvent.Signal();
}
