public async Task LocalMutualExclusion_Serializes()
{
IScope <string> mutex = new LocalMutualExclusion <string>(EqualityComparer <string> .Default);
var taskOne = mutex.WithScopeAsync(KeyOne, CancellationToken.None);
var taskTwo = mutex.WithScopeAsync(KeyTwo, CancellationToken.None);
var taskWaiting = mutex.WithScopeAsync(KeyOne, CancellationToken.None);
using (await taskOne)
using (await taskTwo)
{
Assert.IsFalse(taskWaiting.IsCompleted);
}
using (await taskWaiting)
{
}
}
public async Task LocalMutualExclusion_NoDeadlock()
{
IScope <string> mutex = new LocalMutualExclusion <string>(EqualityComparer <string> .Default);
using (await mutex.WithScopeAsync(KeyOne, CancellationToken.None))
using (await mutex.WithScopeAsync(KeyTwo, CancellationToken.None))
{
}
using (await mutex.WithScopeAsync(KeyTwo, CancellationToken.None))
using (await mutex.WithScopeAsync(KeyOne, CancellationToken.None))
{
}
using (await mutex.WithScopeAsync(KeyOne, CancellationToken.None))
using (await mutex.WithScopeAsync(KeyTwo, CancellationToken.None))
{
}
}