| /* |
| * Copyright (C) 2013, 2016 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| #include "SimpleTypedArrayController.h" |
| |
| #include "ArrayBuffer.h" |
| #include "JSArrayBuffer.h" |
| #include "JSCInlines.h" |
| |
| namespace JSC { |
| |
| SimpleTypedArrayController::SimpleTypedArrayController() { } |
| SimpleTypedArrayController::~SimpleTypedArrayController() { } |
| |
| JSArrayBuffer* SimpleTypedArrayController::toJS( |
| ExecState* exec, JSGlobalObject* globalObject, ArrayBuffer* native) |
| { |
| if (JSArrayBuffer* buffer = native->m_wrapper.get()) |
| return buffer; |
| |
| // The JSArrayBuffer::create function will register the wrapper in finishCreation. |
| JSArrayBuffer* result = JSArrayBuffer::create( |
| exec->vm(), globalObject->arrayBufferStructure(native->sharingMode()), native); |
| return result; |
| } |
| |
| void SimpleTypedArrayController::registerWrapper(JSGlobalObject*, ArrayBuffer* native, JSArrayBuffer* wrapper) |
| { |
| ASSERT(!native->m_wrapper); |
| native->m_wrapper = Weak<JSArrayBuffer>(wrapper, &m_owner); |
| } |
| |
| bool SimpleTypedArrayController::isAtomicsWaitAllowedOnCurrentThread() |
| { |
| return true; |
| } |
| |
| bool SimpleTypedArrayController::JSArrayBufferOwner::isReachableFromOpaqueRoots(JSC::Handle<JSC::Unknown> handle, void*, JSC::SlotVisitor& visitor, const char** reason) |
| { |
| if (UNLIKELY(reason)) |
| *reason = "JSArrayBuffer is opaque root"; |
| auto& wrapper = *JSC::jsCast<JSC::JSArrayBuffer*>(handle.slot()->asCell()); |
| return visitor.containsOpaqueRoot(wrapper.impl()); |
| } |
| |
| void SimpleTypedArrayController::JSArrayBufferOwner::finalize(JSC::Handle<JSC::Unknown>, void*) { } |
| |
| } // namespace JSC |
| |