public async Task NoPending()
{
var executionManager = new ThreadPoolExecutionManager(new LoggerFactory());
object locker = new object();
List <Task> tasks = new List <Task>();
int count = 50;
int finishedTasks = 0;
//Launch many threads.
for (int i = 0; i < count; i++)
{
var t = executionManager.ProcessUpdate(async() =>
{
Thread.Sleep(1000);
lock (locker)
{
finishedTasks++;
}
});
tasks.Add(t);
}
//Await all.
await executionManager.AwaitAllPending();
Assert.Zero(executionManager.PendingTasksCount);
Assert.AreEqual(count, finishedTasks);
}
public async Task AllPending_TaskAwait()
{
var executionManager = new ThreadPoolExecutionManager(new LoggerFactory());
var tasks = new List <Task>();
int count = 200;
int finishedTasks = 0;
var tasksSources = new List <TaskCompletionSource <object> >();
//Launch many threads.
for (int i = 0; i < count; i++)
{
var t = executionManager.ProcessUpdate(async() =>
{
var tcs = new TaskCompletionSource <object>(TaskContinuationOptions.RunContinuationsAsynchronously);
lock (tasksSources)
{
tasksSources.Add(tcs);
}
await tcs.Task;
finishedTasks++;
});
tasks.Add(t);
}
var pendingTasksCount = executionManager.PendingTasksCount;
var finishedTasksRes = finishedTasks;
//Await all.
await executionManager.AwaitAllPending(TimeSpan.FromMilliseconds(100));
//Release threads.
lock (tasksSources)
{
for (int i = 0; i < count; i++)
{
//If we not "release all task - threads will not been locked and application will not freeze.
//Thats how Task works.
tasksSources[i].SetCanceled();
}
}
await executionManager.AwaitAllPending();
Assert.AreEqual(count, pendingTasksCount);
Assert.Zero(finishedTasksRes);
}
public async Task AllPending_ThreadLock()
{
var executionManager = new ThreadPoolExecutionManager(new LoggerFactory());
var locker = new object();
List <Task> tasks = new List <Task>();
int count = 200;
int finishedTasks = 0;
Semaphore are = new Semaphore(0, int.MaxValue);
//Launch many threads.
for (int i = 0; i < count; i++)
{
var t = executionManager.ProcessUpdate(async() =>
{
are.WaitOne();
finishedTasks++;
});
tasks.Add(t);
}
var pendingTasksCount = executionManager.PendingTasksCount;
var finishedTasksRes = finishedTasks;
//Await all.
await executionManager.AwaitAllPending(TimeSpan.FromMilliseconds(100));
//Release threads.
for (int i = 0; i < count; i++)
{
are.Release();
}
await executionManager.AwaitAllPending();
Assert.AreEqual(count, pendingTasksCount);
Assert.Zero(finishedTasksRes);
}