Lock class abstract

A Lock is an abstract interface that can be used to implement unified mutual-exclusion synchronization primitives.

Unified mutual-exclusion synchronization primitives are objects with the following members:

• acquire
• release
• reacquire
• tryAcquire

Implementers

• BinarySemaphore
• ReentrantLock

Constructors

Lock()

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

acquire() → Future<void>

Acquires the lock.

lock(FutureOr<void> action()) → Future<void>

Acquires the lock, then executes the callback function action, and then releases the lock.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

reacquire() → Future<void>

Reacquires the lock as quickly as possible.

release() → Future<void>

Releases the lock.

toString() → String

A string representation of this object.

inherited

tryAcquire(Duration timeout) → Future<bool>

Tries to acquire the lock and returns true if the lock was acquired before the timeout expires, otherwise the acquisition attempt is canceled and false is returned.

tryLock(Duration timeout, FutureOr<void> action()) → Future<bool>

Tries to acquire the lock to execute an action and returns true if the lock was acquired before the timeout expires, otherwise the acquisition attempt is canceled and false is returned.

Operators

operator ==(Object other) → bool

The equality operator.

inherited