1 /*
2 * Copyright (c) 2021 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "ecmascript/jobs/micro_job_queue.h"
17
18 #include "ecmascript/ecma_string.h"
19 #include "ecmascript/global_env.h"
20 #include "ecmascript/jobs/hitrace_scope.h"
21 #include "ecmascript/jobs/pending_job.h"
22 #include "ecmascript/js_arguments.h"
23 #include "ecmascript/js_handle.h"
24 #include "ecmascript/js_tagged_value.h"
25 #include "ecmascript/js_thread.h"
26 #include "ecmascript/object_factory.h"
27 #include "ecmascript/tagged_queue.h"
28
29 namespace panda::ecmascript::job {
EnqueueJob(JSThread * thread,JSHandle<MicroJobQueue> jobQueue,QueueType queueType,const JSHandle<JSFunction> & job,const JSHandle<TaggedArray> & argv)30 void MicroJobQueue::EnqueueJob(JSThread *thread, JSHandle<MicroJobQueue> jobQueue, QueueType queueType,
31 const JSHandle<JSFunction> &job, const JSHandle<TaggedArray> &argv)
32 {
33 // 1. Assert: Type(queueName) is String and its value is the name of a Job Queue recognized by this implementation.
34 // 2. Assert: job is the name of a Job.
35 // 3. Assert: arguments is a List that has the same number of elements as the number of parameters required by job.
36 // 4. Let callerContext be the running execution context.
37 // 5. Let callerRealm be callerContext’s Realm.
38 ObjectFactory *factory = thread->GetEcmaVM()->GetFactory();
39 [[maybe_unused]] EcmaHandleScope handleScope(thread);
40 JSHandle<PendingJob> pendingJob(factory->NewPendingJob(job, argv));
41 ENQUEUE_JOB_HITRACE(pendingJob, queueType);
42 if (queueType == QueueType::QUEUE_PROMISE) {
43 JSHandle<TaggedQueue> promiseQueue(thread, jobQueue->GetPromiseJobQueue());
44 TaggedQueue *newPromiseQueue = TaggedQueue::Push(thread, promiseQueue, JSHandle<JSTaggedValue>(pendingJob));
45 jobQueue->SetPromiseJobQueue(thread, JSTaggedValue(newPromiseQueue));
46 LOG_ECMA(VERBOSE) << "EnqueueJob length: " << newPromiseQueue->Size();
47 } else if (queueType == QueueType::QUEUE_SCRIPT) {
48 JSHandle<TaggedQueue> scriptQueue(thread, jobQueue->GetScriptJobQueue());
49 TaggedQueue *newScriptQueue = TaggedQueue::Push(thread, scriptQueue, JSHandle<JSTaggedValue>(pendingJob));
50 jobQueue->SetScriptJobQueue(thread, JSTaggedValue(newScriptQueue));
51 }
52 }
53
ExecutePendingJob(JSThread * thread,JSHandle<MicroJobQueue> jobQueue)54 void MicroJobQueue::ExecutePendingJob(JSThread *thread, JSHandle<MicroJobQueue> jobQueue)
55 {
56 [[maybe_unused]] EcmaHandleScope handleScope(thread);
57 JSMutableHandle<TaggedQueue> promiseQueue(thread, jobQueue->GetPromiseJobQueue());
58 JSMutableHandle<PendingJob> pendingJob(thread, JSTaggedValue::Undefined());
59 while (!promiseQueue->Empty()) {
60 LOG_ECMA(VERBOSE) << "ExecutePendingJob length: " << promiseQueue->Size();
61 pendingJob.Update(promiseQueue->Pop(thread));
62 PendingJob::ExecutePendingJob(pendingJob, thread);
63 if (thread->HasPendingException()) {
64 return;
65 }
66 promiseQueue.Update(jobQueue->GetPromiseJobQueue());
67 }
68
69 JSHandle<TaggedQueue> scriptQueue(thread, jobQueue->GetScriptJobQueue());
70 while (!scriptQueue->Empty()) {
71 pendingJob.Update(scriptQueue->Pop(thread));
72 PendingJob::ExecutePendingJob(pendingJob, thread);
73 if (thread->HasPendingException()) {
74 return;
75 }
76 }
77 }
78 } // namespace panda::ecmascript::job
79