blob: 23ed544e9c576843e5860615296d1192e20b5b45 [file] [log] [blame]
/*
* Copyright (C) 2020 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 "WorkerOrWorkletGlobalScope.h"
#include "ScriptModuleLoader.h"
#include "ServiceWorkerGlobalScope.h"
#include "WorkerEventLoop.h"
#include "WorkerInspectorController.h"
#include "WorkerOrWorkletScriptController.h"
#include "WorkerOrWorkletThread.h"
#include "WorkerRunLoop.h"
#include "WorkletGlobalScope.h"
#include <wtf/IsoMallocInlines.h>
namespace WebCore {
WTF_MAKE_ISO_ALLOCATED_IMPL(WorkerOrWorkletGlobalScope);
WorkerOrWorkletGlobalScope::WorkerOrWorkletGlobalScope(WorkerThreadType type, PAL::SessionID sessionID, Ref<JSC::VM>&& vm, WorkerOrWorkletThread* thread, ScriptExecutionContextIdentifier contextIdentifier)
: ScriptExecutionContext(contextIdentifier)
, m_script(makeUnique<WorkerOrWorkletScriptController>(type, WTFMove(vm), this))
, m_moduleLoader(makeUnique<ScriptModuleLoader>(*this, ScriptModuleLoader::OwnerType::WorkerOrWorklet))
, m_thread(thread)
, m_inspectorController(makeUnique<WorkerInspectorController>(*this))
, m_sessionID(sessionID)
{
}
WorkerOrWorkletGlobalScope::~WorkerOrWorkletGlobalScope() = default;
void WorkerOrWorkletGlobalScope::prepareForDestruction()
{
if (m_defaultTaskGroup) {
m_defaultTaskGroup->markAsReadyToStop();
ASSERT(m_defaultTaskGroup->isStoppedPermanently());
}
stopActiveDOMObjects();
// Event listeners would keep DOMWrapperWorld objects alive for too long. Also, they have references to JS objects,
// which become dangling once Heap is destroyed.
removeAllEventListeners();
// MicrotaskQueue and RejectedPromiseTracker reference Heap.
if (m_eventLoop)
m_eventLoop->clearMicrotaskQueue();
removeRejectedPromiseTracker();
m_inspectorController->workerTerminating();
}
void WorkerOrWorkletGlobalScope::clearScript()
{
m_script = nullptr;
}
JSC::VM& WorkerOrWorkletGlobalScope::vm()
{
return script()->vm();
}
void WorkerOrWorkletGlobalScope::disableEval(const String& errorMessage)
{
m_script->disableEval(errorMessage);
}
void WorkerOrWorkletGlobalScope::disableWebAssembly(const String& errorMessage)
{
m_script->disableWebAssembly(errorMessage);
}
bool WorkerOrWorkletGlobalScope::isJSExecutionForbidden() const
{
return !m_script || m_script->isExecutionForbidden();
}
EventLoopTaskGroup& WorkerOrWorkletGlobalScope::eventLoop()
{
ASSERT(isContextThread());
if (UNLIKELY(!m_defaultTaskGroup)) {
m_eventLoop = WorkerEventLoop::create(*this);
m_defaultTaskGroup = makeUnique<EventLoopTaskGroup>(*m_eventLoop);
if (activeDOMObjectsAreStopped())
m_defaultTaskGroup->stopAndDiscardAllTasks();
}
return *m_defaultTaskGroup;
}
bool WorkerOrWorkletGlobalScope::isContextThread() const
{
auto* thread = workerOrWorkletThread();
return thread && thread->thread() ? thread->thread() == &Thread::current() : isMainThread();
}
void WorkerOrWorkletGlobalScope::postTask(Task&& task)
{
ASSERT(workerOrWorkletThread());
workerOrWorkletThread()->runLoop().postTask(WTFMove(task));
}
void WorkerOrWorkletGlobalScope::postTaskForMode(Task&& task, const String& mode)
{
ASSERT(workerOrWorkletThread());
workerOrWorkletThread()->runLoop().postTaskForMode(WTFMove(task), mode);
}
} // namespace WebCore