1 /*
2 * Copyright (c) 2021-2024 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/global_env.h"
19 #include "ecmascript/jobs/pending_job.h"
20 #include "ecmascript/js_tagged_value-inl.h"
21 #include "ecmascript/tagged_queue.h"
22
23 namespace panda::ecmascript::job {
GetPromiseQueueSize(JSThread * thread,JSHandle<MicroJobQueue> jobQueue)24 uint32_t MicroJobQueue::GetPromiseQueueSize(JSThread *thread, JSHandle<MicroJobQueue> jobQueue)
25 {
26 [[maybe_unused]] EcmaHandleScope handleScope(thread);
27 JSHandle<TaggedQueue> promiseQueue(thread, jobQueue->GetPromiseJobQueue());
28 return promiseQueue->Size();
29 }
30
EnqueueJob(JSThread * thread,JSHandle<MicroJobQueue> jobQueue,QueueType queueType,const JSHandle<JSFunction> & job,const JSHandle<TaggedArray> & argv)31 void MicroJobQueue::EnqueueJob(JSThread *thread, JSHandle<MicroJobQueue> jobQueue, QueueType queueType,
32 const JSHandle<JSFunction> &job, const JSHandle<TaggedArray> &argv)
33 {
34 // 1. Assert: Type(queueName) is String and its value is the name of a Job Queue recognized by this implementation.
35 // 2. Assert: job is the name of a Job.
36 // 3. Assert: arguments is a List that has the same number of elements as the number of parameters required by job.
37 // 4. Let callerContext be the running execution context.
38 // 5. Let callerRealm be callerContext’s Realm.
39 ObjectFactory *factory = thread->GetEcmaVM()->GetFactory();
40 [[maybe_unused]] EcmaHandleScope handleScope(thread);
41 JSHandle<PendingJob> pendingJob(factory->NewPendingJob(job, argv));
42 ENQUEUE_JOB_HITRACE(pendingJob, queueType);
43 ENQUEUE_JOB_TRACE(thread, pendingJob);
44
45 if (queueType == QueueType::QUEUE_PROMISE) {
46 JSHandle<TaggedQueue> promiseQueue(thread, jobQueue->GetPromiseJobQueue());
47 TaggedQueue *newPromiseQueue = TaggedQueue::Push(thread, promiseQueue, JSHandle<JSTaggedValue>(pendingJob));
48 jobQueue->SetPromiseJobQueue(thread, JSTaggedValue(newPromiseQueue));
49 LOG_ECMA(VERBOSE) << "EnqueueJob length: " << newPromiseQueue->Size();
50 } else if (queueType == QueueType::QUEUE_SCRIPT) {
51 JSHandle<TaggedQueue> scriptQueue(thread, jobQueue->GetScriptJobQueue());
52 TaggedQueue *newScriptQueue = TaggedQueue::Push(thread, scriptQueue, JSHandle<JSTaggedValue>(pendingJob));
53 jobQueue->SetScriptJobQueue(thread, JSTaggedValue(newScriptQueue));
54 }
55 }
56
ExecutePendingJob(JSThread * thread,JSHandle<MicroJobQueue> jobQueue)57 void MicroJobQueue::ExecutePendingJob(JSThread *thread, JSHandle<MicroJobQueue> jobQueue)
58 {
59 [[maybe_unused]] EcmaHandleScope handleScope(thread);
60 JSMutableHandle<TaggedQueue> promiseQueue(thread, jobQueue->GetPromiseJobQueue());
61 JSMutableHandle<PendingJob> pendingJob(thread, JSTaggedValue::Undefined());
62 while (!promiseQueue->Empty()) {
63 LOG_ECMA(VERBOSE) << "ExecutePendingJob length: " << promiseQueue->Size();
64 pendingJob.Update(promiseQueue->Pop(thread));
65 PendingJob::ExecutePendingJob(pendingJob, thread);
66 if (!thread->IsInConcurrentScope()) {
67 thread->SetTaskInfo(reinterpret_cast<uintptr_t>(nullptr));
68 }
69 if (thread->HasPendingException()) {
70 return;
71 }
72 if (thread->HasTerminated()) {
73 JSHandle<TaggedQueue> emptyQueue(thread->GlobalConstants()->GetHandledEmptyTaggedQueue());
74 jobQueue->SetPromiseJobQueue(thread, emptyQueue);
75 return;
76 }
77 promiseQueue.Update(jobQueue->GetPromiseJobQueue());
78 }
79
80 JSHandle<TaggedQueue> scriptQueue(thread, jobQueue->GetScriptJobQueue());
81 while (!scriptQueue->Empty()) {
82 pendingJob.Update(scriptQueue->Pop(thread));
83 PendingJob::ExecutePendingJob(pendingJob, thread);
84 if (thread->HasPendingException()) {
85 return;
86 }
87 }
88 }
89 } // namespace panda::ecmascript::job
90