System.Threading.Tasks.ThreadPoolTaskScheduler Class Reference

Inheritance diagram for System.Threading.Tasks.ThreadPoolTaskScheduler:

Public Member Functions
	ThreadPoolTaskScheduler ()
	Constructs a new ThreadPool task scheduler object.

Protected Member Functions
override void	QueueTask (Task task)
	Schedules a task to the ThreadPool. More...
override bool	TryExecuteTaskInline (Task task, bool taskWasPreviouslyQueued)
	This internal function will do this: (1) If the task had previously been queued, attempt to pop it and return false if that fails. More...
override bool	TryDequeue (Task task)
override void	NotifyWorkItemProgress ()
	Notifies the scheduler that work is progressing (no-op).
Protected Member Functions inherited from System.Threading.Tasks.TaskScheduler
bool	TryRunInline (Task task, bool taskWasPreviouslyQueued)
void	InternalQueueTask (Task task)

Properties
override bool	RequiresAtomicStartTransition [get]
	This is the only scheduler that returns false for this property, indicating that the task entry codepath is unsafe (CAS free) since we know that the underlying scheduler already takes care of atomic transitions from queued to non-queued.
Properties inherited from System.Threading.Tasks.TaskScheduler
static TaskScheduler	Default [get]
static TaskScheduler??	Current [get]
static TaskScheduler?	InternalCurrent [get]
virtual bool	RequiresAtomicStartTransition [get]

Member Function Documentation

QueueTask()

override void System.Threading.Tasks.ThreadPoolTaskScheduler.QueueTask ( Task  task )

inlineprotectedvirtual

Schedules a task to the ThreadPool.

Parameters

task	The task to schedule.

Implements System.Threading.Tasks.TaskScheduler.

TryExecuteTaskInline()

override bool System.Threading.Tasks.ThreadPoolTaskScheduler.TryExecuteTaskInline ( Task  task, bool  taskWasPreviouslyQueued  )

inlineprotectedvirtual

This internal function will do this: (1) If the task had previously been queued, attempt to pop it and return false if that fails.

(2) Propagate the return value from Task.ExecuteEntry() back to the caller.

IMPORTANT NOTE: TryExecuteTaskInline will NOT throw task exceptions itself. Any wait code path using this function needs to account for exceptions that need to be propagated, and throw themselves accordingly.

Implements System.Threading.Tasks.TaskScheduler.