/// <summary>
/// Start executing a new fiber using the default scheduler on the thread.
/// </summary>
/// <returns>
/// Returns a <see cref="Fiber"/>
/// that can be yielded against to wait for the fiber to complete.
/// </returns>
/// <param name='action'>
/// A non-blocking action to execute on the fiber.
/// </param>
/// <param name="cancellationToken">Cancellation token.</param>
/// <param name='scheduler'>
/// A scheduler to execute the fiber on.
/// </param>
public Fiber StartNew(Action action, CancellationToken cancellationToken, FiberScheduler scheduler)
{
var fiber = new Fiber(action, cancellationToken);
fiber.Start(scheduler);
return(fiber);
}
static internal void SetCurrentScheduler(FiberScheduler scheduler, bool internalInvoke)
{
// Only allow scheduler changes on a thread when a fiber is not executing.
// Ignore this check if this is an internal invocation such as from
// Fiber.Execute() which needs to switch schedulers on demand.
if (!internalInvoke && Fiber.CurrentFiber != null)
{
throw new InvalidOperationException("The current scheduler for the thread cannot be changed from inside an executing fiber.");
}
// Skip work if nothing to change
if (currentScheduler == scheduler)
{
return;
}
// Assign the scheduler
currentScheduler = scheduler;
// Update the synchronization context if it changed
if (currentScheduler != null && SynchronizationContext.Current != currentScheduler.SynchronizationContext)
{
SynchronizationContext.SetSynchronizationContext(currentScheduler.SynchronizationContext);
}
else if (currentScheduler == null && SynchronizationContext.Current != null)
{
SynchronizationContext.SetSynchronizationContext(null);
}
}
/// <summary>
/// Creates a continuation that executes asynchronously when the target fiber completes.
/// </summary>
/// <returns>A fiber that executes when the target fiber completes.</returns>
/// <param name="continuationCoroutine">Continuation coroutine.</param>
/// <param name="cancellationToken">Cancellation token.</param>
/// <param name="continuationOptions">Continuation options.</param>
/// <param name="scheduler">Scheduler.</param>
public Fiber ContinueWith(IEnumerator continuationCoroutine, CancellationToken cancellationToken,
FiberContinuationOptions continuationOptions, FiberScheduler scheduler)
{
if (continuationCoroutine == null)
throw new ArgumentNullException("continuationCoroutine");
if (scheduler == null)
throw new ArgumentNullException("scheduler");
var fiber = new Fiber(continuationCoroutine, cancellationToken);
fiber.antecedent = this;
fiber.status = (int)FiberStatus.WaitingForActivation;
var continuation = new FiberContinuation(fiber, continuationOptions, scheduler);
if (IsCompleted) {
continuation.Execute();
} else {
// Lazy create queue
if (continuations == null)
continuations = new Queue<FiberContinuation>();
continuations.Enqueue(continuation);
}
return fiber;
}
/// <summary>
/// Crates a Fiber that waits for a delay before completing.
/// </summary>
/// <param name="millisecondsDelay">Milliseconds to delay.</param>
/// <param name="cancellationToken">Cancellation token.</param>
/// <param name="scheduler">Scheduler.</param>
public static Fiber Delay(int millisecondsDelay, CancellationToken cancellationToken, FiberScheduler scheduler)
{
if (millisecondsDelay < -1)
throw new ArgumentOutOfRangeException ("millisecondsDelay");
return Fiber.Factory.StartNew(DelayCoroutine(millisecondsDelay, cancellationToken), scheduler);
}
/// <summary>
/// Initializes the task factory during Awake().
/// </summary>
/// <remarks>
/// The task factory cannot be initialized in the constructor
/// because it must be initialized from the coroutine
/// execution thread which the constructor does not guarantee.
/// </remarks>
protected virtual void Awake()
{
_taskFactory = this.CreateTaskFactory();
_taskScheduler = _taskFactory.Scheduler;
_fiberScheduler = ((FiberTaskScheduler)_taskScheduler).FiberScheduler;
_fiberFactory = new FiberFactory(_fiberScheduler);
}
/// <summary>
/// Initializes a new instance of the <see cref="SpicyPixel.Threading.FiberFactory"/> class.
/// </summary>
/// <param name="cancellationToken">Cancellation token.</param>
/// <param name="continuationOptions">Continuation options.</param>
/// <param name="scheduler">Scheduler.</param>
public FiberFactory(CancellationToken cancellationToken, FiberContinuationOptions continuationOptions,
FiberScheduler scheduler)
{
this.cancellationToken = cancellationToken;
this.continuationOptions = continuationOptions;
this.scheduler = scheduler;
CheckContinuationOptions (continuationOptions);
}
/// <summary>
/// Initializes a new instance of the <see cref="SpicyPixel.Threading.FiberFactory"/> class.
/// </summary>
/// <param name="cancellationToken">Cancellation token.</param>
/// <param name="continuationOptions">Continuation options.</param>
/// <param name="scheduler">Scheduler.</param>
public FiberFactory(CancellationToken cancellationToken, FiberContinuationOptions continuationOptions,
FiberScheduler scheduler)
{
this.cancellationToken = cancellationToken;
this.continuationOptions = continuationOptions;
this.scheduler = scheduler;
CheckContinuationOptions(continuationOptions);
}
/// <summary>
/// Start executing the fiber using the specified scheduler.
/// </summary>
/// <remarks>
/// This method is safe to call from any thread even if different
/// than the scheduler execution thread.
/// </remarks>
/// <returns>
/// Returns a <see cref="YieldUntilComplete"/> fiber instruction
/// that can be yielded against to wait for the fiber to complete.
/// </returns>
/// <param name='scheduler'>
/// The scheduler to start the fiber on.
/// </param>
public YieldUntilComplete Start(FiberScheduler scheduler)
{
// It would be unusual to attempt to start a Fiber more than once,
// but to be safe and to support calling from any thread
// use Interlocked with boxing on the enum.
var originalState = (FiberState)Interlocked.CompareExchange(ref fiberState, (int)FiberState.Running, (int)FiberState.Unstarted);
if (originalState != FiberState.Unstarted)
{
throw new InvalidOperationException("A fiber cannot be started again once it has begun running or has completed.");
}
this.scheduler = scheduler;
((IFiberScheduler)this.scheduler).QueueFiber(this);
return(new YieldUntilComplete(this));
}
/// <summary>
/// Start executing the fiber using the specified scheduler.
/// </summary>
/// <remarks>
/// This method is safe to call from any thread even if different
/// than the scheduler execution thread.
/// </remarks>
/// <param name='scheduler'>
/// The scheduler to start the fiber on.
/// </param>
public void Start(FiberScheduler scheduler)
{
// It would be unusual to attempt to start a Fiber more than once,
// but to be safe and to support calling from any thread
// use Interlocked with boxing on the enum.
var originalState = (FiberStatus)Interlocked.CompareExchange(ref status, (int)FiberStatus.WaitingToRun, (int)FiberStatus.Created);
if (originalState != FiberStatus.Created)
{
originalState = (FiberStatus)Interlocked.CompareExchange(ref status, (int)FiberStatus.WaitingToRun, (int)FiberStatus.WaitingForActivation);
if (originalState != FiberStatus.WaitingForActivation)
{
throw new InvalidOperationException("A fiber cannot be started again once it has begun running or has completed.");
}
}
this.scheduler = scheduler;
((IFiberScheduler)this.scheduler).QueueFiber(this);
}
/// <summary>
/// Creates a continuation that executes asynchronously when the target fiber completes.
/// </summary>
/// <returns>A fiber that executes when the target fiber completes.</returns>
/// <param name="continuationAction">Continuation action.</param>
/// <param name="state">State.</param>
/// <param name="cancellationToken">Cancellation token.</param>
/// <param name="continuationOptions">Continuation options.</param>
/// <param name="scheduler">Scheduler.</param>
public Fiber ContinueWith(Action <Fiber, object> continuationAction, object state, CancellationToken cancellationToken,
FiberContinuationOptions continuationOptions, FiberScheduler scheduler)
{
if (continuationAction == null)
{
throw new ArgumentNullException("continuationAction");
}
if (scheduler == null)
{
throw new ArgumentNullException("scheduler");
}
var fiber = new Fiber((obj) => continuationAction(this, obj),
state, cancellationToken);
fiber.antecedent = this;
fiber.status = (int)FiberStatus.WaitingForActivation;
var continuation = new FiberContinuation(fiber, continuationOptions, scheduler);
if (IsCompleted)
{
continuation.Execute();
}
else
{
// Lazy create queue
if (continuations == null)
{
continuations = new Queue <FiberContinuation>();
}
continuations.Enqueue(continuation);
}
return(fiber);
}
/// <summary>
/// Start executing a new fiber using the default scheduler on the thread.
/// </summary>
/// <returns>
/// Returns a <see cref="Fiber"/>
/// that can be yielded against to wait for the fiber to complete.
/// </returns>
/// <param name='action'>
/// A non-blocking action to execute on the fiber.
/// </param>
/// <param name='state'>
/// State to pass to the action.
/// </param>
/// <param name='scheduler'>
/// A scheduler to execute the fiber on.
/// </param>
public Fiber StartNew(Action<object> action, object state, FiberScheduler scheduler)
{
return StartNew(action, state, cancellationToken, scheduler);
}
/// <summary>
/// Start executing a new fiber using the specified scheduler.
/// </summary>
/// <returns>
/// Returns a <see cref="Fiber"/>
/// that can be yielded against to wait for the fiber to complete.
/// </returns>
/// <param name='coroutine'>
/// A couroutine to execute on the fiber.
/// </param>
/// <param name='scheduler'>
/// A scheduler to execute the fiber on.
/// </param>
public Fiber StartNew(IEnumerator coroutine, FiberScheduler scheduler)
{
return StartNew(coroutine, cancellationToken, scheduler);
}
/// <summary>
/// Start executing the fiber using the specified scheduler.
/// </summary>
/// <remarks>
/// This method is safe to call from any thread even if different
/// than the scheduler execution thread.
/// </remarks>
/// <returns>
/// Returns a <see cref="YieldUntilComplete"/> fiber instruction
/// that can be yielded against to wait for the fiber to complete.
/// </returns>
/// <param name='scheduler'>
/// The scheduler to start the fiber on.
/// </param>
public YieldUntilComplete Start(FiberScheduler scheduler)
{
// It would be unusual to attempt to start a Fiber more than once,
// but to be safe and to support calling from any thread
// use Interlocked with boxing on the enum.
var originalState = (FiberState)Interlocked.CompareExchange(ref fiberState, (int)FiberState.Running, (int)FiberState.Unstarted);
if(originalState != FiberState.Unstarted)
throw new InvalidOperationException("A fiber cannot be started again once it has begun running or has completed.");
this.scheduler = scheduler;
((IFiberScheduler)this.scheduler).QueueFiber(this);
return new YieldUntilComplete(this);
}
/// <summary>
/// Returns a fiber that completes when any fiber finishes.
/// </summary>
/// <remarks>
/// `Fiber.ResultAsObject` will be the `Fiber` that completed.
/// </remarks>
/// <returns>A fiber that completes when any fiber finishes.</returns>
/// <param name="fibers">Fibers to wait for completion.</param>
/// <param name="millisecondsTimeout">Milliseconds timeout.</param>
/// <param name="cancellationToken">Cancellation token.</param>
/// <param name="scheduler">Scheduler.</param>
public static Fiber WhenAny(IEnumerable<Fiber> fibers, int millisecondsTimeout, CancellationToken cancellationToken, FiberScheduler scheduler)
{
return WhenAny(fibers.ToArray(), millisecondsTimeout, cancellationToken, scheduler);
}
internal static void SetCurrentScheduler(FiberScheduler scheduler, bool internalInvoke)
{
// Only allow scheduler changes on a thread when a fiber is not executing.
// Ignore this check if this is an internal invocation such as from
// Fiber.Execute() which needs to switch schedulers on demand.
if(!internalInvoke && Fiber.CurrentFiber != null)
throw new InvalidOperationException("The current scheduler for the thread cannot be changed from inside an executing fiber.");
// Skip work if nothing to change
if(currentScheduler == scheduler)
return;
// Assign the scheduler
currentScheduler = scheduler;
// Update the synchronization context if it changed
if(currentScheduler != null && SynchronizationContext.Current != currentScheduler.SynchronizationContext)
SynchronizationContext.SetSynchronizationContext(currentScheduler.SynchronizationContext);
else if(currentScheduler == null && SynchronizationContext.Current != null)
SynchronizationContext.SetSynchronizationContext(null);
}
/// <summary>
/// Start executing a new fiber using the default scheduler on the thread.
/// </summary>
/// <returns>
/// Returns a <see cref="Fiber"/>
/// that can be yielded against to wait for the fiber to complete.
/// </returns>
/// <param name='action'>
/// A non-blocking action to execute on the fiber.
/// </param>
/// <param name='scheduler'>
/// A scheduler to execute the fiber on.
/// </param>
public Fiber StartNew(Action action, FiberScheduler scheduler)
{
return StartNew(action, cancellationToken, scheduler);
}
/// <summary>
/// Returns a fiber that waits on all fibers to complete.
/// </summary>
/// <remarks>
/// `Fiber.ResultAsObject` will be `true` if all fibers complete
/// successfully or `false` if cancelled or timeout.
/// </remarks>
/// <returns>A fiber that waits on all fibers to complete.</returns>
/// <param name="fibers">Fibers to wait for completion.</param>
/// <param name="millisecondsTimeout">Milliseconds timeout.</param>
/// <param name="cancellationToken">Cancellation token.</param>
/// <param name="scheduler">Scheduler.</param>
public static Fiber WhenAll(IEnumerable <Fiber> fibers, int millisecondsTimeout, CancellationToken cancellationToken, FiberScheduler scheduler)
{
return(WhenAll(fibers.ToArray(), millisecondsTimeout, cancellationToken, scheduler));
}
/// <summary>
/// Start executing a new fiber using the specified scheduler.
/// </summary>
/// <returns>
/// Returns a <see cref="YieldUntilComplete"/> fiber instruction
/// that can be yielded against to wait for the fiber to complete.
/// </returns>
/// <param name='coroutine'>
/// A couroutine to execute on the fiber.
/// </param>
/// <param name='scheduler'>
/// A scheduler to execute the fiber on.
/// </param>
public static YieldUntilComplete StartNew(IEnumerator coroutine, FiberScheduler scheduler)
{
return(new Fiber(coroutine).Start(scheduler));
}
/// <summary>
/// Creates a continuation that executes asynchronously when the target fiber completes.
/// </summary>
/// <returns>A fiber that executes when the target fiber completes.</returns>
/// <param name="continuationCoroutine">Continuation coroutine.</param>
/// <param name="scheduler">Scheduler.</param>
public Fiber ContinueWith(IEnumerator continuationCoroutine, FiberScheduler scheduler)
{
return(ContinueWith(continuationCoroutine, CancellationToken.None, FiberContinuationOptions.None, scheduler));
}
/// <summary>
/// Creates a continuation that executes asynchronously when the target fiber completes.
/// </summary>
/// <returns>A fiber that executes when the target fiber completes.</returns>
/// <param name="continuationAction">Continuation action.</param>
/// <param name="state">State.</param>
/// <param name="scheduler">Scheduler.</param>
public Fiber ContinueWith(Action <Fiber, object> continuationAction, object state, FiberScheduler scheduler)
{
return(ContinueWith(continuationAction, state, CancellationToken.None, FiberContinuationOptions.None, scheduler));
}
/// <summary>
/// Returns a fiber that waits on all tasks to complete.
/// </summary>
/// <remarks>
/// `Fiber.ResultAsObject` will be `true` if all tasks complete
/// successfully or `false` if cancelled or timeout.
/// </remarks>
/// <returns>A fiber that waits on all tasks to complete.</returns>
/// <param name="tasks">Tasks to wait for completion.</param>
/// <param name="millisecondsTimeout">Milliseconds timeout.</param>
/// <param name="cancellationToken">Cancellation token.</param>
/// <param name="scheduler">Scheduler.</param>
public static Fiber WhenAll(IEnumerable<Task> tasks, int millisecondsTimeout, CancellationToken cancellationToken, FiberScheduler scheduler)
{
return WhenAll (tasks.ToArray (), millisecondsTimeout, cancellationToken, scheduler);
}
/// <summary>
/// Returns a fiber that waits on all tasks to complete.
/// </summary>
/// <remarks>
/// `Fiber.ResultAsObject` will be `true` if all tasks complete
/// successfully or `false` if cancelled or timeout.
/// </remarks>
/// <returns>A fiber that waits on all tasks to complete.</returns>
/// <param name="tasks">Tasks to wait for completion.</param>
/// <param name="millisecondsTimeout">Milliseconds timeout.</param>
/// <param name="cancellationToken">Cancellation token.</param>
/// <param name="scheduler">Scheduler.</param>
public static Fiber WhenAll(Task [] tasks, int millisecondsTimeout, CancellationToken cancellationToken, FiberScheduler scheduler)
{
if (tasks == null)
throw new ArgumentNullException ("tasks");
foreach (var fiber in tasks) {
if (fiber == null)
throw new ArgumentException ("tasks", "the tasks argument contains a null element");
}
return Fiber.Factory.StartNew (WhenAllTasksCoroutine (tasks, millisecondsTimeout, cancellationToken), cancellationToken, scheduler);
}
/// <summary>
/// Initializes a new instance of the <see cref="SpicyPixel.Threading.FiberSchedulerSynchronizationContext"/> class.
/// </summary>
/// <param name='scheduler'>
/// The scheduler to send or post callbacks to.
/// </param>
public FiberSchedulerSynchronizationContext(FiberScheduler scheduler)
{
this.scheduler = scheduler;
}
/// <summary>
/// Initializes a new instance of the <see cref="SpicyPixel.Threading.Fiber"/> class.
/// </summary>
/// <param name='func'>
/// A non-blocking function that returns a <see cref="Fiber"/> when complete.
/// </param>
/// <param name='scheduler'>
/// A scheduler to execute the fiber on.
/// </param>
public Fiber StartNew(Func<FiberInstruction> func, FiberScheduler scheduler)
{
return StartNew(func, cancellationToken, scheduler);
}
/// <summary>
/// Start executing a new fiber using the default scheduler on the thread.
/// </summary>
/// <returns>
/// Returns a <see cref="YieldUntilComplete"/> fiber instruction
/// that can be yielded against to wait for the fiber to complete.
/// </returns>
/// <param name='action'>
/// A non-blocking action to execute on the fiber.
/// </param>
/// <param name='scheduler'>
/// A scheduler to execute the fiber on.
/// </param>
/// <param name='state'>
/// State to pass to the action.
/// </param>
public static YieldUntilComplete StartNew(Action <object> action, object state, FiberScheduler scheduler)
{
return(new Fiber(action, state).Start(scheduler));
}
/// <summary>
/// Start executing a new fiber using the default scheduler on the thread.
/// </summary>
/// <returns>
/// Returns a <see cref="Fiber"/>
/// that can be yielded against to wait for the fiber to complete.
/// </returns>
/// <param name='action'>
/// A non-blocking action to execute on the fiber.
/// </param>
/// <param name='state'>
/// State to pass to the action.
/// </param>
/// <param name="cancellationToken">Cancellation token.</param>
/// <param name='scheduler'>
/// A scheduler to execute the fiber on.
/// </param>
public Fiber StartNew(Action<object> action, object state, CancellationToken cancellationToken, FiberScheduler scheduler)
{
var fiber = new Fiber(action, state, cancellationToken);
fiber.Start(scheduler);
return fiber;
}
/// <summary>
/// Initializes a new instance of the <see cref="SpicyPixel.Threading.Fiber"/> class.
/// </summary>
/// <param name='func'>
/// A non-blocking function that returns a <see cref="Fiber"/> when complete.
/// </param>
/// <param name='state'>
/// State to pass to the function.
/// </param>
/// <param name="cancellationToken">Cancellation token.</param>
/// <param name='scheduler'>
/// A scheduler to execute the fiber on.
/// </param>
public Fiber StartNew(Func<object, FiberInstruction> func, object state, CancellationToken cancellationToken, FiberScheduler scheduler)
{
var fiber = new Fiber(func, state, cancellationToken);
fiber.Start(scheduler);
return fiber;
}
/// <summary>
/// Returns a fiber that completes when any fiber finishes.
/// </summary>
/// <remarks>
/// `Fiber.ResultAsObject` will be the `Fiber` that completed.
/// </remarks>
/// <returns>A fiber that completes when any fiber finishes.</returns>
/// <param name="fibers">Fibers to wait for completion.</param>
/// <param name="millisecondsTimeout">Milliseconds timeout.</param>
/// <param name="cancellationToken">Cancellation token.</param>
/// <param name="scheduler">Scheduler.</param>
public static Fiber WhenAny(Fiber[] fibers, int millisecondsTimeout, CancellationToken cancellationToken, FiberScheduler scheduler)
{
if (fibers == null)
{
throw new ArgumentNullException("fibers");
}
foreach (var fiber in fibers)
{
if (fiber == null)
{
throw new ArgumentException("fibers", "the fibers argument contains a null element");
}
}
return(Fiber.Factory.StartNew(WhenAnyFibersCoroutine(fibers, millisecondsTimeout, cancellationToken), cancellationToken, scheduler));
}
/// <summary>
/// Start executing a new fiber using the specified scheduler.
/// </summary>
/// <returns>
/// Returns a <see cref="YieldUntilComplete"/> fiber instruction
/// that can be yielded against to wait for the fiber to complete.
/// </returns>
/// <param name='coroutine'>
/// A couroutine to execute on the fiber.
/// </param>
/// <param name='scheduler'>
/// A scheduler to execute the fiber on.
/// </param>
public static YieldUntilComplete StartNew(IEnumerator coroutine, FiberScheduler scheduler)
{
return new Fiber(coroutine).Start(scheduler);
}
/// <summary>
/// Start executing a new fiber using the specified scheduler.
/// </summary>
/// <returns>
/// Returns a <see cref="Fiber"/>
/// that can be yielded against to wait for the fiber to complete.
/// </returns>
/// <param name='coroutine'>
/// A couroutine to execute on the fiber.
/// </param>
/// <param name="cancellationToken">Cancellation token.</param>
/// <param name='scheduler'>
/// A scheduler to execute the fiber on.
/// </param>
public Fiber StartNew(IEnumerator coroutine, CancellationToken cancellationToken, FiberScheduler scheduler)
{
var fiber = new Fiber(coroutine, cancellationToken);
fiber.Start(scheduler);
return(fiber);
}
/// <summary>
/// Start executing a new fiber using the default scheduler on the thread.
/// </summary>
/// <returns>
/// Returns a <see cref="YieldUntilComplete"/> fiber instruction
/// that can be yielded against to wait for the fiber to complete.
/// </returns>
/// <param name='action'>
/// A non-blocking action to execute on the fiber.
/// </param>
/// <param name='scheduler'>
/// A scheduler to execute the fiber on.
/// </param>
/// <param name='state'>
/// State to pass to the action.
/// </param>
public static YieldUntilComplete StartNew(Action<object> action, object state, FiberScheduler scheduler)
{
return new Fiber(action, state).Start(scheduler);
}
/// <summary>
/// Initializes a new instance of the <see cref="SpicyPixel.Threading.Fiber"/> class.
/// </summary>
/// <param name='func'>
/// A non-blocking function that returns a <see cref="Fiber"/> when complete.
/// </param>
/// <param name='state'>
/// State to pass to the function.
/// </param>
/// <param name='scheduler'>
/// A scheduler to execute the fiber on.
/// </param>
public Fiber StartNew(Func<object, FiberInstruction> func, object state, FiberScheduler scheduler)
{
return StartNew(func, state, cancellationToken, scheduler);
}
/// <summary>
/// Start executing a new fiber using the specified scheduler.
/// </summary>
/// <returns>
/// Returns a <see cref="Fiber"/>
/// that can be yielded against to wait for the fiber to complete.
/// </returns>
/// <param name='coroutine'>
/// A couroutine to execute on the fiber.
/// </param>
/// <param name="cancellationToken">Cancellation token.</param>
/// <param name='scheduler'>
/// A scheduler to execute the fiber on.
/// </param>
public Fiber StartNew(IEnumerator coroutine, CancellationToken cancellationToken, FiberScheduler scheduler)
{
var fiber = new Fiber(coroutine, cancellationToken);
fiber.Start(scheduler);
return fiber;
}
/// <summary>
/// Start executing a new fiber using the default scheduler on the thread.
/// </summary>
/// <returns>
/// Returns a <see cref="YieldUntilComplete"/> fiber instruction
/// that can be yielded against to wait for the fiber to complete.
/// </returns>
/// <param name='action'>
/// A non-blocking action to execute on the fiber.
/// </param>
/// <param name='scheduler'>
/// A scheduler to execute the fiber on.
/// </param>
public static YieldUntilComplete StartNew(Action action, FiberScheduler scheduler)
{
return(new Fiber(action).Start(scheduler));
}
/// <summary>
/// Executes the fiber until it ends or yields.
/// </summary>
/// <returns>
/// A fiber instruction to be processed by the scheduler.
/// </returns>
internal FiberInstruction Execute()
{
//Console.WriteLine ("Fiber {0}:{1} start executing", Id, Status);
// Sanity check the scheduler. Since this is a scheduler
// only issue, this test happens first before execution
// and before allowing an exception handler to take over.
if (IsCompleted)
{
throw new InvalidOperationException("An attempt was made to execute a completed Fiber. This indicates a logic error in the scheduler.");
}
// Setup thread globals with this scheduler as the owner.
// The sync context is also setup when the scheduler changes.
// Setting the sync context isn't a simple assign in .NET
// so don't do this until needed.
//
// Doing this setup in Execute() frees derived schedulers from the
// burden of setting up the sync context or scheduler. It also allows the
// current scheduler to change on demand when there is more than one
// scheduler running per thread.
//
// For example, each MonoBehaviour in Unity is assigned its own
// scheduler since the behavior determines the lifetime of tasks.
// The active scheduler then can vary depending on which behavior is
// currently executing tasks. Unity will decide outside of this framework
// which behaviour to execute in which order and therefore which
// scheduler is active. The active scheduler in this case can
// only be determined at the time of fiber execution.
//
// Unlike CurrentFiber below, this does not need to be stacked
// once set because the scheduler will never change during fiber
// execution. Only something outside of the scheduler would
// change the scheduler.
if (FiberScheduler.Current != scheduler)
{
FiberScheduler.SetCurrentScheduler(scheduler, true);
}
// Push the current fiber onto the stack and pop it in finally.
// This must be stacked because the fiber may spawn another
// fiber which the scheduler may choose to inline which would result
// in a new fiber temporarily taking its place as current.
var lastFiber = Fiber.CurrentFiber;
Fiber.CurrentFiber = this;
// Start the fiber if not started
Interlocked.CompareExchange(ref status, (int)FiberStatus.WaitingToRun, (int)FiberStatus.Created);
Interlocked.CompareExchange(ref status, (int)FiberStatus.Running, (int)FiberStatus.WaitingToRun);
try {
object result = null;
// Execute the coroutine or action
if (coroutine != null)
{
//Console.WriteLine ("Fiber {0}:{1} start executing coroutine", Id, Status);
// Execute coroutine
if (coroutine.MoveNext())
{
// Get result of execution
result = coroutine.Current;
// If the coroutine returned a stop directly
// the fiber still needs to process it
if (result is StopInstruction)
{
Stop(FiberStatus.RanToCompletion);
}
}
else
{
// Coroutine finished executing
result = Stop(FiberStatus.RanToCompletion);
}
//Console.WriteLine ("Fiber {0}:{1} end executing coroutine", Id, Status);
}
else if (action != null)
{
// Execute action
action();
// Action finished executing
result = Stop(FiberStatus.RanToCompletion);
}
else if (actionObject != null)
{
// Execute action
actionObject(objectState);
// Action finished executing
result = Stop(FiberStatus.RanToCompletion);
}
else if (func != null)
{
result = func();
func = null;
if (result is StopInstruction)
{
Stop(FiberStatus.RanToCompletion);
}
}
else if (funcObject != null)
{
result = funcObject(objectState);
funcObject = null;
if (result is StopInstruction)
{
Stop(FiberStatus.RanToCompletion);
}
}
else
{
// Func execution nulls out the function
// so the scheduler will return to here
// when complete and then stop.
result = Stop(FiberStatus.RanToCompletion);
}
// Treat null as a special case
if (result == null)
{
return(FiberInstruction.YieldToAnyFiber);
}
// Return instructions or throw if invalid
var instruction = result as FiberInstruction;
if (instruction == null)
{
// If the result was an enumerator there is a nested coroutine to execute
if (result is IEnumerator)
{
instruction = new YieldUntilComplete(Fiber.Factory.StartNew(result as IEnumerator, cancelToken, scheduler));
}
else if (result is Fiber)
{
// Convert fibers into yield instructions
instruction = new YieldUntilComplete(result as Fiber);
}
else
{
// Pass through other values
return(new ObjectInstruction(result));
}
}
if (instruction is FiberResult)
{
ResultAsObject = ((FiberResult)instruction).Result;
result = Stop(FiberStatus.RanToCompletion);
}
// Verify same scheduler
if (instruction is YieldUntilComplete && ((YieldUntilComplete)instruction).Fiber.Scheduler != FiberScheduler.Current)
{
throw new InvalidOperationException("Currently only fibers belonging to the same scheduler may be yielded to. FiberScheduler.Current = "
+ (FiberScheduler.Current == null ? "null" : FiberScheduler.Current.ToString())
+ ", Fiber.Scheduler = " + (((YieldUntilComplete)instruction).Fiber.Scheduler == null ? "null" : ((YieldUntilComplete)instruction).Fiber.Scheduler.ToString()));
}
var yieldToFiberInstruction = instruction as YieldToFiber;
if (yieldToFiberInstruction != null)
{
// Start fibers yielded to that aren't running yet
Interlocked.CompareExchange(ref yieldToFiberInstruction.Fiber.status, (int)FiberStatus.WaitingToRun, (int)FiberStatus.Created);
var originalState = (FiberStatus)Interlocked.CompareExchange(ref yieldToFiberInstruction.Fiber.status, (int)FiberStatus.Running, (int)FiberStatus.WaitingToRun);
if (originalState == FiberStatus.WaitingToRun)
{
yieldToFiberInstruction.Fiber.scheduler = scheduler;
}
// Can't switch to completed fibers
if (yieldToFiberInstruction.Fiber.IsCompleted)
{
throw new InvalidOperationException("An attempt was made to yield to a completed fiber.");
}
// Verify scheduler
if (yieldToFiberInstruction.Fiber.Scheduler != FiberScheduler.Current)
{
throw new InvalidOperationException("Currently only fibers belonging to the same scheduler may be yielded to. FiberScheduler.Current = "
+ (FiberScheduler.Current == null ? "null" : FiberScheduler.Current.ToString())
+ ", Fiber.Scheduler = " + (yieldToFiberInstruction.Fiber.Scheduler == null ? "null" : yieldToFiberInstruction.Fiber.Scheduler.ToString()));
}
}
//Console.WriteLine ("Fiber {0}:{1} returning {2}", Id, Status, instruction);
return(instruction);
} catch (System.Threading.OperationCanceledException cancelException) {
// Handle as proper cancellation only if the token matches.
// Otherwise treat it as a fault.
if (cancelException.CancellationToken == cancelToken)
{
this.Exception = null;
return(Stop(FiberStatus.Canceled));
}
else
{
this.Exception = cancelException;
return(Stop(FiberStatus.Faulted));
}
} catch (Exception fiberException) {
this.Exception = fiberException;
return(Stop(FiberStatus.Faulted));
} finally {
// Pop the current fiber
Fiber.CurrentFiber = lastFiber;
//Console.WriteLine ("Fiber {0}:{1} end executing", Id, Status);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="SpicyPixel.Threading.Fiber"/> class.
/// </summary>
/// <param name='func'>
/// A non-blocking function that returns a <see cref="FiberInstruction"/> when complete.
/// </param>
/// <param name='state'>
/// State to pass to the function.
/// </param>
/// <param name='scheduler'>
/// A scheduler to execute the fiber on.
/// </param>
public static YieldUntilComplete StartNew(Func <object, FiberInstruction> func, object state, FiberScheduler scheduler)
{
return(new Fiber(func, state).Start(scheduler));
}
public FiberContinuation(Fiber fiber, FiberContinuationOptions options, FiberScheduler scheduler)
{
this.fiber = fiber;
this.options = options;
this.scheduler = scheduler;
}
/// <summary>
/// Executes the fiber until it ends or yields.
/// </summary>
/// <returns>
/// A fiber instruction to be processed by the scheduler.
/// </returns>
internal FiberInstruction Execute()
{
// Sanity check the scheduler. Since this is a scheduler
// only issue, this test happens first before execution
// and before allowing an exception handler to take over.
if (FiberState == FiberState.Stopped)
{
throw new InvalidOperationException("An attempt was made to execute a stopped Fiber. This indicates a logic error in the scheduler.");
}
// Setup thread globals with this scheduler as the owner.
// The sync context is also setup when the scheduler changes.
// Setting the sync context isn't a simple assign in .NET
// so don't do this until needed.
//
// Doing this setup in Execute() frees derived schedulers from the
// burden of setting up the sync context or scheduler. It also allows the
// current scheduler to change on demand when there is more than one
// scheduler running per thread.
//
// For example, each MonoBehaviour in Unity is assigned its own
// scheduler since the behavior determines the lifetime of tasks.
// The active scheduler then can vary depending on which behavior is
// currently executing tasks. Unity will decide outside of this framework
// which behaviour to execute in which order and therefore which
// scheduler is active. The active scheduler in this case can
// only be determined at the time of fiber execution.
//
// Unlike CurrentFiber below, this does not need to be stacked
// once set because the scheduler will never change during fiber
// execution. Only something outside of the scheduler would
// change the scheduler.
if (FiberScheduler.Current != scheduler)
{
FiberScheduler.SetCurrentScheduler(scheduler, true);
}
// Push the current fiber onto the stack and pop it in finally.
// This must be stacked because the fiber may spawn another
// fiber which the scheduler may choose to inline which would result
// in a new fiber temporarily taking its place as current.
var lastFiber = Fiber.CurrentFiber;
Fiber.CurrentFiber = this;
try
{
// Process an abort if pending
if (FiberState == FiberState.AbortRequested)
{
throw new FiberAbortException();
}
object result;
// Execute the coroutine or action
if (coroutine != null)
{
// Execute coroutine
if (coroutine.MoveNext())
{
// Get result of execution
result = coroutine.Current;
}
else
{
// Coroutine finished executing
result = Stop();
}
}
else if (action != null)
{
// Execute action
action();
// Action finished executing
result = Stop();
}
else if (actionObject != null)
{
// Execute action
actionObject(objectState);
// Action finished executing
result = Stop();
}
else if (func != null)
{
result = func();
func = null;
}
else if (funcObject != null)
{
result = funcObject(objectState);
funcObject = null;
}
else
{
// Func execution nulls out the function
// so the scheduler will return to here
// when complete and then stop.
result = Stop();
}
// Treat null as a special case
if (result == null)
{
return(FiberInstruction.YieldToAnyFiber);
}
// Return instructions or throw if invalid
var instruction = result as FiberInstruction;
if (instruction == null)
{
return(new ObjectInstruction(result));
}
else
{
// Verify same scheduler
if (instruction is YieldUntilComplete && ((YieldUntilComplete)instruction).Fiber.Scheduler != FiberScheduler.Current)
{
throw new InvalidOperationException("Currently only fibers belonging to the same scheduler may be yielded to. FiberScheduler.Current = "
+ (FiberScheduler.Current == null ? "null" : FiberScheduler.Current.ToString())
+ ", Fiber.Scheduler = " + (((YieldUntilComplete)instruction).Fiber.Scheduler == null ? "null" : ((YieldUntilComplete)instruction).Fiber.Scheduler.ToString()));
}
var yieldToFiberInstruction = instruction as YieldToFiber;
if (yieldToFiberInstruction != null)
{
// Start fibers yielded to that aren't running yet
var originalState = (FiberState)Interlocked.CompareExchange(ref yieldToFiberInstruction.Fiber.fiberState, (int)FiberState.Running, (int)FiberState.Unstarted);
if (originalState == FiberState.Unstarted)
{
yieldToFiberInstruction.Fiber.scheduler = scheduler;
}
// Can't switch to stopped fibers
if (yieldToFiberInstruction.Fiber.FiberState == FiberState.Stopped)
{
throw new InvalidOperationException("An attempt was made to yield to a stopped fiber.");
}
// Verify scheduler
if (yieldToFiberInstruction.Fiber.Scheduler != FiberScheduler.Current)
{
throw new InvalidOperationException("Currently only fibers belonging to the same scheduler may be yielded to. FiberScheduler.Current = "
+ (FiberScheduler.Current == null ? "null" : FiberScheduler.Current.ToString())
+ ", Fiber.Scheduler = " + (yieldToFiberInstruction.Fiber.Scheduler == null ? "null" : yieldToFiberInstruction.Fiber.Scheduler.ToString()));
}
}
return(instruction);
}
}
catch (Exception fiberException)
{
// If an exception occurs allow the handler to run.
// Fiber execution will terminate even with a handler
// because it's not possible to resume an action or a
// coroutine that throws an exception.
//
// The only exception that could result in a contiunation
// is FiberAbortException. Handlers may choose to deny
// the abort by calling Fiber.ResetAbort().
try
{
// Invoke the exception handler (which could throw)
var unhandledException = this.unhandledException;
var eventArgs = new FiberUnhandledExceptionEventArgs(this, fiberException);
if (unhandledException != null)
{
foreach (var subscriber in unhandledException.GetInvocationList())
{
subscriber.DynamicInvoke(this, eventArgs);
if (eventArgs.Handled)
{
break;
}
}
}
// See if an abort was requested. The flag is thread safe because
// it is only ever touched by the scheduler thread.
if (resetAbortRequested)
{
resetAbortRequested = false;
fiberState = (int)FiberState.Running;
return(FiberInstruction.YieldToAnyFiber); // signal the scheduler to continue
}
else
{
if (!eventArgs.Handled)
{
throw fiberException;
}
else
{
return(Stop());
}
}
}
catch (Exception fiberOrHandlerException)
{
// The exception wasn't from an abort or it wasn't reset
// and so the exception needs to happen.
// Clear reset requests (if any). This is needed here in case
// the exceptionHandler above threw after ResetAbort() was
// called.
//
// The flag is thread safe because
// it is only ever touched by the scheduler thread.
resetAbortRequested = false;
// Stop the fiber. This will invoke completion handlers
// but they won't know this fiber failed due to an exception
// unless they handled the exception above or wait for
// the scheduler to do something after the throw below.
Stop();
// Throw the exception back to the scheduler.
throw fiberOrHandlerException;
}
}
finally
{
// Pop the current fiber
Fiber.CurrentFiber = lastFiber;
}
}
/// <summary>
/// Initializes a new instance of the <see cref="SpicyPixel.Threading.FiberFactory"/> class.
/// </summary>
/// <param name="scheduler">Scheduler.</param>
public FiberFactory(FiberScheduler scheduler)
: this(CancellationToken.None, FiberContinuationOptions.None, scheduler)
{
}
/// <summary>
/// Start executing a new fiber using the default scheduler on the thread.
/// </summary>
/// <returns>
/// Returns a <see cref="YieldUntilComplete"/> fiber instruction
/// that can be yielded against to wait for the fiber to complete.
/// </returns>
/// <param name='action'>
/// A non-blocking action to execute on the fiber.
/// </param>
/// <param name='scheduler'>
/// A scheduler to execute the fiber on.
/// </param>
public static YieldUntilComplete StartNew(Action action, FiberScheduler scheduler)
{
return new Fiber(action).Start(scheduler);
}
/// <summary>
/// Start executing a new fiber using the default scheduler on the thread.
/// </summary>
/// <returns>
/// Returns a <see cref="Fiber"/>
/// that can be yielded against to wait for the fiber to complete.
/// </returns>
/// <param name='action'>
/// A non-blocking action to execute on the fiber.
/// </param>
/// <param name='scheduler'>
/// A scheduler to execute the fiber on.
/// </param>
public Fiber StartNew(Action action, FiberScheduler scheduler)
{
return(StartNew(action, cancellationToken, scheduler));
}
/// <summary>
/// Initializes a new instance of the <see cref="SpicyPixel.Threading.Fiber"/> class.
/// </summary>
/// <param name='func'>
/// A non-blocking function that returns a <see cref="FiberInstruction"/> when complete.
/// </param>
/// <param name='state'>
/// State to pass to the function.
/// </param>
/// <param name='scheduler'>
/// A scheduler to execute the fiber on.
/// </param>
public static YieldUntilComplete StartNew(Func<object, FiberInstruction> func, object state, FiberScheduler scheduler)
{
return new Fiber(func, state).Start(scheduler);
}
/// <summary>
/// Crates a Fiber that waits for a delay before completing.
/// </summary>
/// <param name="millisecondsDelay">Milliseconds to delay.</param>
/// <param name="cancellationToken">Cancellation token.</param>
/// <param name="scheduler">Scheduler.</param>
public static Fiber Delay(int millisecondsDelay, CancellationToken cancellationToken, FiberScheduler scheduler)
{
if (millisecondsDelay < -1)
{
throw new ArgumentOutOfRangeException("millisecondsDelay");
}
return(Fiber.Factory.StartNew(DelayCoroutine(millisecondsDelay, cancellationToken), scheduler));
}
/// <summary>
/// Initializes a new instance of the <see cref="SpicyPixel.Threading.FiberFactory"/> class.
/// </summary>
/// <param name="scheduler">Scheduler.</param>
public FiberFactory(FiberScheduler scheduler)
: this(CancellationToken.None, FiberContinuationOptions.None, scheduler)
{
}
/// <summary>
/// Creates a continuation that executes asynchronously when the target fiber completes.
/// </summary>
/// <returns>A fiber that executes when the target fiber completes.</returns>
/// <param name="continuationAction">Continuation action.</param>
/// <param name="state">State.</param>
/// <param name="scheduler">Scheduler.</param>
public Fiber ContinueWith(Action<Fiber, object> continuationAction, object state, FiberScheduler scheduler)
{
return ContinueWith(continuationAction, state, CancellationToken.None, FiberContinuationOptions.None, scheduler);
}
public FiberContinuation(Fiber fiber, FiberContinuationOptions options, FiberScheduler scheduler)
{
this.fiber = fiber;
this.options = options;
this.scheduler = scheduler;
}
/// <summary>
/// Start executing a new fiber using the default scheduler on the thread.
/// </summary>
/// <returns>
/// Returns a <see cref="Fiber"/>
/// that can be yielded against to wait for the fiber to complete.
/// </returns>
/// <param name='action'>
/// A non-blocking action to execute on the fiber.
/// </param>
/// <param name="cancellationToken">Cancellation token.</param>
/// <param name='scheduler'>
/// A scheduler to execute the fiber on.
/// </param>
public Fiber StartNew(Action action, CancellationToken cancellationToken, FiberScheduler scheduler)
{
var fiber = new Fiber(action, cancellationToken);
fiber.Start(scheduler);
return fiber;
}
/// <summary>
/// Creates a continuation that executes asynchronously when the target fiber completes.
/// </summary>
/// <returns>A fiber that executes when the target fiber completes.</returns>
/// <param name="continuationAction">Continuation action.</param>
/// <param name="cancellationToken">Cancellation token.</param>
/// <param name="continuationOptions">Continuation options.</param>
/// <param name="scheduler">Scheduler.</param>
public Fiber ContinueWith(Action<Fiber> continuationAction, CancellationToken cancellationToken,
FiberContinuationOptions continuationOptions, FiberScheduler scheduler)
{
return ContinueWith((fiber, state) => continuationAction(fiber), null, cancellationToken, continuationOptions, scheduler);
}
/// <summary>
/// Start executing a new fiber using the default scheduler on the thread.
/// </summary>
/// <returns>
/// Returns a <see cref="Fiber"/>
/// that can be yielded against to wait for the fiber to complete.
/// </returns>
/// <param name='action'>
/// A non-blocking action to execute on the fiber.
/// </param>
/// <param name='state'>
/// State to pass to the action.
/// </param>
/// <param name='scheduler'>
/// A scheduler to execute the fiber on.
/// </param>
public Fiber StartNew(Action <object> action, object state, FiberScheduler scheduler)
{
return(StartNew(action, state, cancellationToken, scheduler));
}
/// <summary>
/// Creates a continuation that executes asynchronously when the target fiber completes.
/// </summary>
/// <returns>A fiber that executes when the target fiber completes.</returns>
/// <param name="continuationCoroutine">Continuation coroutine.</param>
/// <param name="scheduler">Scheduler.</param>
public Fiber ContinueWith(IEnumerator continuationCoroutine, FiberScheduler scheduler)
{
return ContinueWith(continuationCoroutine, CancellationToken.None, FiberContinuationOptions.None, scheduler);
}
/// <summary>
/// Start executing a new fiber using the default scheduler on the thread.
/// </summary>
/// <returns>
/// Returns a <see cref="Fiber"/>
/// that can be yielded against to wait for the fiber to complete.
/// </returns>
/// <param name='action'>
/// A non-blocking action to execute on the fiber.
/// </param>
/// <param name='state'>
/// State to pass to the action.
/// </param>
/// <param name="cancellationToken">Cancellation token.</param>
/// <param name='scheduler'>
/// A scheduler to execute the fiber on.
/// </param>
public Fiber StartNew(Action <object> action, object state, CancellationToken cancellationToken, FiberScheduler scheduler)
{
var fiber = new Fiber(action, state, cancellationToken);
fiber.Start(scheduler);
return(fiber);
}
/// <summary>
/// Initializes a new instance of the <see cref="SpicyPixel.Threading.FiberSchedulerSynchronizationContext"/> class.
/// </summary>
/// <param name='scheduler'>
/// The scheduler to send or post callbacks to.
/// </param>
public FiberSchedulerSynchronizationContext(FiberScheduler scheduler)
{
this.scheduler = scheduler;
}
/// <summary>
/// Initializes a new instance of the <see cref="SpicyPixel.Threading.Fiber"/> class.
/// </summary>
/// <param name='func'>
/// A non-blocking function that returns a <see cref="Fiber"/> when complete.
/// </param>
/// <param name='scheduler'>
/// A scheduler to execute the fiber on.
/// </param>
public Fiber StartNew(Func <FiberInstruction> func, FiberScheduler scheduler)
{
return(StartNew(func, cancellationToken, scheduler));
}
/// <summary>
/// Start executing the fiber using the specified scheduler.
/// </summary>
/// <remarks>
/// This method is safe to call from any thread even if different
/// than the scheduler execution thread.
/// </remarks>
/// <param name='scheduler'>
/// The scheduler to start the fiber on.
/// </param>
public void Start(FiberScheduler scheduler)
{
// It would be unusual to attempt to start a Fiber more than once,
// but to be safe and to support calling from any thread
// use Interlocked with boxing on the enum.
var originalState = (FiberStatus)Interlocked.CompareExchange (ref status, (int)FiberStatus.WaitingToRun, (int)FiberStatus.Created);
if (originalState != FiberStatus.Created) {
originalState = (FiberStatus)Interlocked.CompareExchange (ref status, (int)FiberStatus.WaitingToRun, (int)FiberStatus.WaitingForActivation);
if (originalState != FiberStatus.WaitingForActivation) {
throw new InvalidOperationException ("A fiber cannot be started again once it has begun running or has completed.");
}
}
this.scheduler = scheduler;
((IFiberScheduler)this.scheduler).QueueFiber (this);
}
/// <summary>
/// Initializes a new instance of the <see cref="SpicyPixel.Threading.Fiber"/> class.
/// </summary>
/// <param name='func'>
/// A non-blocking function that returns a <see cref="Fiber"/> when complete.
/// </param>
/// <param name='state'>
/// State to pass to the function.
/// </param>
/// <param name='scheduler'>
/// A scheduler to execute the fiber on.
/// </param>
public Fiber StartNew(Func <object, FiberInstruction> func, object state, FiberScheduler scheduler)
{
return(StartNew(func, state, cancellationToken, scheduler));
}
/// <summary>
/// Returns a fiber that completes when any task finishes.
/// </summary>
/// <remarks>
/// `Fiber.ResultAsObject` will be the `Task` that completed.
/// </remarks>
/// <returns>A fiber that completes when any task finishes.</returns>
/// <param name="tasks">Tasks to wait for completion.</param>
/// <param name="millisecondsTimeout">Milliseconds timeout.</param>
/// <param name="cancellationToken">Cancellation token.</param>
/// <param name="scheduler">Scheduler.</param>
public static Fiber WhenAny(IEnumerable <Task> tasks, int millisecondsTimeout, CancellationToken cancellationToken, FiberScheduler scheduler)
{
return(WhenAny(tasks.ToArray(), millisecondsTimeout, cancellationToken, scheduler));
}
/// <summary>
/// Initializes a new instance of the <see cref="SpicyPixel.Threading.Fiber"/> class.
/// </summary>
/// <param name='func'>
/// A non-blocking function that returns a <see cref="Fiber"/> when complete.
/// </param>
/// <param name='state'>
/// State to pass to the function.
/// </param>
/// <param name="cancellationToken">Cancellation token.</param>
/// <param name='scheduler'>
/// A scheduler to execute the fiber on.
/// </param>
public Fiber StartNew(Func <object, FiberInstruction> func, object state, CancellationToken cancellationToken, FiberScheduler scheduler)
{
var fiber = new Fiber(func, state, cancellationToken);
fiber.Start(scheduler);
return(fiber);
}
/// <summary>
/// Initializes the task factory during Awake().
/// </summary>
/// <remarks>
/// The task factory cannot be initialized in the constructor
/// because it must be initialized from the coroutine
/// execution thread which the constructor does not guarantee.
/// </remarks>
protected virtual void Awake()
{
_taskFactory = this.CreateTaskFactory();
_taskScheduler = _taskFactory.Scheduler;
_fiberScheduler = ((FiberTaskScheduler)_taskScheduler).FiberScheduler;
_fiberFactory = new FiberFactory(_fiberScheduler);
}
/// <summary>
/// Start executing a new fiber using the specified scheduler.
/// </summary>
/// <returns>
/// Returns a <see cref="Fiber"/>
/// that can be yielded against to wait for the fiber to complete.
/// </returns>
/// <param name='coroutine'>
/// A couroutine to execute on the fiber.
/// </param>
/// <param name='scheduler'>
/// A scheduler to execute the fiber on.
/// </param>
public Fiber StartNew(IEnumerator coroutine, FiberScheduler scheduler)
{
return(StartNew(coroutine, cancellationToken, scheduler));
}