public static async Task ConcurrentLock()
{
using (var are = new AutoResetEvent(false))
using (var @lock = new AsyncExclusiveLock())
{
await @lock.Acquire(TimeSpan.Zero);
var task = new TaskCompletionSource <bool>();
ThreadPool.QueueUserWorkItem(async state =>
{
False(await @lock.TryAcquire(TimeSpan.FromMilliseconds(10)));
True(ThreadPool.QueueUserWorkItem(ev => ev.Set(), are, false));
await @lock.Acquire(InfiniteTimeSpan);
@lock.Release();
task.SetResult(true);
});
are.WaitOne();
@lock.Release();
await task.Task;
}
}
public static async Task TrivialLock()
{
using (var @lock = new AsyncExclusiveLock())
{
True(await @lock.TryAcquire(TimeSpan.FromMilliseconds(10)));
False(await @lock.TryAcquire(TimeSpan.FromMilliseconds(100)));
await ThrowsAsync <TimeoutException>(() => @lock.Acquire(TimeSpan.FromMilliseconds(100)));
@lock.Release();
True(await @lock.TryAcquire(TimeSpan.FromMilliseconds(100)));
}
}