FakeSharedBuffer class final

A SharedBuffer backed by ordinary process memory, for VM tests.

Mirrors the web implementation's semantics: the asXxxList() accessors are aliasing views over one allocation, and the atomic methods perform (trivially atomic, single-threaded) 32-bit read-modify-write operations with the same wrap-around and range-checking behavior.

FakeWorkerTransport passes instances by reference, simulating how a real SharedArrayBuffer is shared rather than cloned. A fake buffer cannot cross a real worker boundary.

Implemented types

• SharedBuffer

Constructors

FakeSharedBuffer(int byteLength)

Allocates byteLength bytes of zeroed fake-shared memory.

Properties

byteLength → int

Total length of the buffer, in bytes.

no setter, override

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

asFloat64List() → Float64List

A 64-bit float view over the buffer (byteLength ~/ 8 elements).

override

asInt32List() → Int32List

A signed 32-bit view over the buffer (byteLength ~/ 4 elements).

override

asUint8List() → Uint8List

A byte view over the whole buffer.

override

atomicAdd(int index, int value) → int

Atomically adds value to the 32-bit element at index and returns the previous value. index is in Int32 elements, not bytes.

override

atomicLoad(int index) → int

Atomically reads the 32-bit element at index.

override

atomicStore(int index, int value) → void

Atomically writes value to the 32-bit element at index.

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited