Semaphore class

A semaphore prevents asynchronous code from being executed simultaneously.

Constructors

Semaphore()

Properties

completer ↔ Completer?

getter/setter pair

hashCode → int

The hash code for this object.

no setter, inherited

isLocked → bool

no setter

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

debounce<TResult>(FutureOr<TResult> job(), {Duration delay = const Duration(milliseconds: 250)}) → Future<TResult?>

Function job is only executed when no other job is scheduled within the delay period.

lock() → Future

Locks the semaphore. The Future completes as soon as the semaphore is released and can be locked again.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

release() → void

Releases the current lock on the semaphore.

runLocked<TResult>(FutureOr<TResult> job()) → Future<TResult>

Function job is executed immediately if the semaphore is not locked, as soon as the last scheduled job finishes otherwise.

throttle<TResult>(FutureOr<TResult> job()) → Future<TResult?>

Function job is executed only if the semaphore is not locked.

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited