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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
#include "WebTaskSchedulerWorker.h"
#include "mozilla/dom/WorkerScope.h"
#include "mozilla/dom/TimeoutManager.h"
namespace mozilla::dom {
WebTaskWorkerRunnable::WebTaskWorkerRunnable(
WorkerPrivate* aWorkerPrivate, WebTaskSchedulerWorker* aSchedulerWorker)
: WorkerSameThreadRunnable("WebTaskWorkerRunnable"),
mSchedulerWorker(aSchedulerWorker) {
MOZ_ASSERT(mSchedulerWorker);
}
RefPtr<WebTaskSchedulerWorker> WebTaskSchedulerWorker::Create(
WorkerPrivate* aWorkerPrivate) {
MOZ_ASSERT(aWorkerPrivate);
aWorkerPrivate->AssertIsOnWorkerThread();
RefPtr<WebTaskSchedulerWorker> scheduler =
MakeRefPtr<WebTaskSchedulerWorker>(aWorkerPrivate);
scheduler->mWorkerRef = StrongWorkerRef::Create(
aWorkerPrivate, "WebTaskSchedulerWorker", [scheduler]() {
// Set mWorkerIsShuttingDown as true here to avoid dispatching tasks
// to worker thread.
scheduler->mWorkerIsShuttingDown = true;
});
if (!scheduler->mWorkerRef) {
NS_WARNING("Create WebTaskScheduler when Worker is shutting down");
scheduler->mWorkerIsShuttingDown = true;
}
return scheduler;
}
WebTaskSchedulerWorker::WebTaskSchedulerWorker(WorkerPrivate* aWorkerPrivate)
: WebTaskScheduler(aWorkerPrivate->GlobalScope()) {}
bool WebTaskWorkerRunnable::WorkerRun(JSContext* aCx,
WorkerPrivate* aWorkerPrivate) {
aWorkerPrivate->AssertIsOnWorkerThread();
if (mSchedulerWorker) {
RefPtr<WebTask> task = mSchedulerWorker->GetNextTask();
if (task) {
task->Run();
}
}
return true;
}
nsresult WebTaskSchedulerWorker::SetTimeoutForDelayedTask(WebTask* aTask,
uint64_t aDelay) {
if (mWorkerIsShuttingDown) {
return NS_ERROR_ABORT;
}
if (!mWorkerRef) {
return NS_ERROR_UNEXPECTED;
}
WorkerPrivate* workerPrivate = mWorkerRef->Private();
MOZ_ASSERT(workerPrivate);
workerPrivate->AssertIsOnWorkerThread();
JSContext* cx = nsContentUtils::GetCurrentJSContext();
if (!cx) {
return NS_ERROR_UNEXPECTED;
}
RefPtr<DelayedWebTaskHandler> handler =
new DelayedWebTaskHandler(cx, this, aTask);
ErrorResult rv;
int32_t delay = aDelay > INT32_MAX ? INT32_MAX : (int32_t)aDelay;
workerPrivate->SetTimeout(cx, handler, delay,
/* aIsInterval */ false,
Timeout::Reason::eDelayedWebTaskTimeout, rv);
return rv.StealNSResult();
}
bool WebTaskSchedulerWorker::DispatchEventLoopRunnable() {
if (mWorkerIsShuttingDown) {
return false;
}
if (!mWorkerRef) {
return false;
}
MOZ_ASSERT(mWorkerRef->Private());
mWorkerRef->Private()->AssertIsOnWorkerThread();
RefPtr<WebTaskWorkerRunnable> runnable =
new WebTaskWorkerRunnable(mWorkerRef->Private(), this);
return runnable->Dispatch(mWorkerRef->Private());
}
void WebTaskSchedulerWorker::Disconnect() {
if (mWorkerRef) {
mWorkerRef = nullptr;
}
WebTaskScheduler::Disconnect();
}
} // namespace mozilla::dom