BinarySemaphore class

A BinarySemaphore is a synchronization primitive with an integer value restricted to 0 or 1, representing locked (0) or unlocked (1) states.

Inheritance

• Object
• Lock
• BinarySemaphore

Constructors

BinarySemaphore()

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 a permit from this semaphore.

override

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

inherited

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

release() → Future<void>

Releases a permit.

override

toString() → String

A string representation of this object.

inherited

tryAcquire(Duration timeout) → Future<bool>

Tries to acquire a permit from this semaphore and waits until the specified timeout expires.
If the semaphore is locked and timeout is zero (or not specified), false is returned.
If the timeout expires before the semaphore is unlocked, then returns false.
If permit was acquired, returns true.

override

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

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited