PostSharp.Patterns.Threading Namespace

This namespace contains an implementation of several threading models, and other thread dispatching aspects.

Classes

	Class	Description
	AccessLevelAttribute	Base class for ReaderAttribute, WriterAttribute, YielderAttribute UpgradeableReaderAttribute.
	ActorAttribute	Custom attribute that, when applied to a class, implements the ActorThreadingModel to this class, in which calls to methods are processed asynchronously from a single thread, suppressing concurrency inside each instance of the target class.
	ActorDispatcher	A dispatcher compatible with the ActorThreadingModel threading model, with a message queue based on a ConcurrentQueue The queue itself is processed from the ThreadPool.
	AssumeImmutableAttribute	Custom attribute that, when applied to a targetType, means that targetType should be assumed to be immutable. The custom attribute can be applied to a type on assembly level by specifying the Type property using the AssumeImmutableAttribute(Type) constructor.
	BackgroundAttribute	Custom attribute that, when applied on a method, causes the method to execute in the background. This aspect can be applied to a method with void or Task return type.
	ConcurrencyControllerFactory	Provides methods to create new instances of concurrency controllers.
	ConcurrentAccessException	Exception thrown when two threads simultaneously attempt to access a method annotated with the ThreadUnsafeAttribute custom attribute.
	DeadlockDetectedEventArgs	Arguments for the DeadlockDetected event.
	DeadlockDetectionPolicy	Detects deadlocks occurring because of circular wait conditions.
	DeadlockedThreadInfo	Described state of thread that was detected to be in a deadlock.
	DeadlockException	Exception thrown by the DeadlockDetectionPolicy class when a deadlock is detected.
	DeadlockInfo	Describes the detected deadlock.
	DispatchedAttribute	Custom attribute that, when applied on a method, specifies that the method should be executed in UI thread.
	DispatcherFactory	Provides implementations of the IDispatcher interface.
	EntryPointAttribute	Custom attribute that, when applied to a private or protected instance method, causes all threading model aspects (derived from ThreadAwareAttribute to introduce runtime generation code.
	ExplicitlySynchronizedAttribute	Custom attribute that, when applied to a method or field, specifies that threading model aspects (derived from ThreadAwareAttribute) should ignore all verifications for this field or method.
	FreezableAttribute	Custom attribute that, when applied to a class, implements the FreezableThreadingModel to this class. The aspect introduces the IFreezable interface into the target class. After the Freeze() method has been invoked, the object can no longer be modified, and can therefore be safely shared between several threads.
	ImmutableAttribute	Custom attribute that, when applied to a class, implements the ImmutableThreadingModel to this class. The aspect introduces the IImmutable interface into the target class. Immutable objects cannot be modified after the constructor exits.
	ObjectReadOnlyException	Exception thrown by objects that have the FreezableThreadingModel or ImmutableThreadingModel when an attempt is made to modify the object after it has been made read-only.
	PrivateThreadAwareAttribute	Custom attribute that, when applied to a class, implement the PrivateThreadingModel into this class, in which the threading model of an object is determined by the parent it is assigned to in a parent-child relationship.
	ReaderAttribute	Custom attribute that, when applied on a method, specifies that the method requires read access to the object.
	ReaderWriterSynchronizedAttribute	Custom attribute that, when applied on a class, applies the ReaderWriterSynchronizedThreadingModel model to this class and all derived class. Members of this class must then be annotated with attributes specifying the required access level (ReaderAttribute, WriterAttribute, YielderAttribute or UpgradeableReaderAttribute), otherwise build-time and run-time errors are emitted.
	ReadOnlyThreadAwareAttribute	Base class for aspects FreezableAttribute and ImmutableAttribute.
	ReentrantAttribute	Custom attribute that means that the async method to which it is applied can be safely re-entered on each await statement. In case of lock-based models, it means that the lock is released while awaiting. For the actor model, it means that other methods can be invoked during awaiting.
	RequiresThreadSafeAttribute	Custom attribute that, when applied to a field, property or parameter, checks that the assigned object is thread safe. Otherwise, the assignment results in an ArgumentException/
	SynchronizedAttribute	Custom attribute that, when applied to a class, implements the SynchronizedThreadingModel into this class. In a synchronized object, only a single thread can access the object at a time. If a second thread needs to access the object while it is in used by a first thread, the second thread has to wait until the first thread completes its access.
	ThreadAccessException	Exception thrown when the calling thread does not have access to the object.
	ThreadAffineAttribute	Custom attribute that, when applied on a type, ensures the instances of this type can only be accessed by the thread that created the instance. When a different thread accesses instances of this type, a ThreadMismatchException exception is thrown.
	ThreadAwareAttribute	Base class for all aspects implementing threading models.
	ThreadAwareExtensions	Provides extension methods to the IThreadAware interface.
	ThreadingException	Base class for exceptions thrown by the PostSharp.Patterns.Threading component.
	ThreadingModel	Base class for all threading models. Defines properties that describe the characteristics of threading models. All classes derived from ThreadingModel are necessarily singletons.
	ThreadingPatternsAspectRoles	Enumerates the aspect roles (for use with AspectRoleDependencyAttribute) used by the PostSharp.Patterns.Threading component.
	ThreadingServices	Exposes methods to work with the PostSharp.Patterns.Threading namespace.
	ThreadingUnhandledExceptionEventArgs	Arguments of the UnhandledException event.
	ThreadMismatchException	Exception thrown when a thread attempts to access an object that is affined to another thread.
	ThreadSafetyPolicy	When applied to an assembly, this policy will check for possible concurrency issues.
	ThreadUnsafeAttribute	Custom attribute that, when applied on a type, ensures that only one thread executes in methods of this type. When more than one thread accesses methods of this type, a ConcurrentAccessException exception is thrown.
	UpgradeableReaderAttribute	Custom attribute that, when applied on a method, specifies that the method requires read and write access to the object, but other threads are allowed to acquire read (but not write) access to the object until a method with the WriterAttribute custom attribute is executed.
	WriterAttribute	Custom attribute that, when applied on a method, specifies that the method requires write access to the object.
	YielderAttribute	Custom attribute that, when applied on a method, specifies that the method that currently holds write access to the object (see WriterAttribute) allows other threads to read the object during the execution of the target method. This custom attribute is typically used on methods that raise events that must be processed synchronously by other threads.

Structures

	Structure	Description
	AmbientConcurrencyControllerContext	A disposable cookie returned by WithConcurrencyController(IConcurrencyController).
	ConcurrentAccessAwaiter	An awaiter for the AcquireAccessAsync(ObjectAccessLevel) method. The struct implements both the Awaiter and Awaitable contracts.
	ConcurrentAccessToken	Token returned by the AcquireAccess(ObjectAccessLevel, ConcurrentAccessToken) method. This token is intended to be used in a using block. Consumers of this method must call Complete() on success, and Dispose() on exception.

Interfaces

	Interface	Description
	IActor	Interface implemented by the ActorAttribute aspect.
	IActorController	Specific definition of the IConcurrencyController for the ActorThreadingModel.
	IActorDispatcher	Augments the IDispatcher interface with an Initialize() method, which is invoked after the actor constructor has been invoked.
	IConcurrencyController	Controls access to an entity from possibly several threads.
	IDispatcher	Defines the semantics of a facility that executes actions synchronously or asynchronously, possibly on a different thread.
	IDispatcherObject	Interface implemented by objects that are whose access to methods is being controlled by a Dispatcher.
	IFreezable	Interface implemented by the FreezableAttribute aspect. Defines a Freeze() method.
	IImmutable	Interface implemented by the ImmutableAttribute aspect.
	IThreadAware	Interface implemented by objects that are aware of concurrency. Access to thread-aware objects is controlled by a concurrency controller (IConcurrencyController). Any aspect implementing a threading model (ThreadAwareObjectAttribute) introduces this interface to the target class and ensures that accesses to this class go through the controller.

Enumerations

	Enumeration	Description
	DispatchedExecutionMode	Determines whether the caller of a dispatched method (see DispatchedAttribute) waits for the called method.
	ThreadingUnhandledExceptionSource	Enumeration of components that can raise the UnhandledException event.