1 /*
2 * Copyright (c) 2022-2023 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 "task_queue.h"
17
18 #include "daudio_errorcode.h"
19 #include "daudio_log.h"
20
21 #undef DH_LOG_TAG
22 #define DH_LOG_TAG "TaskQueue"
23
24 namespace OHOS {
25 namespace DistributedHardware {
Start()26 void TaskQueue::Start()
27 {
28 DHLOGI("Start task queue.");
29 taskQueueReady_ = true;
30 isQuitTaskQueue_ = false;
31 mainThreadLoop_ = std::thread(&TaskQueue::Run, this);
32 if (pthread_setname_np(mainThreadLoop_.native_handle(), MAIN_THREAD_LOOP) != DH_SUCCESS) {
33 DHLOGE("Main thread loop setname failed.");
34 }
35 while (!mainThreadLoop_.joinable()) {
36 }
37 DHLOGI("Start task queue success.");
38 }
39
Stop()40 void TaskQueue::Stop()
41 {
42 DHLOGI("Stop task queue.");
43 isQuitTaskQueue_ = true;
44 if (mainThreadLoop_.joinable()) {
45 mainThreadLoop_.join();
46 }
47 DHLOGI("Stop task queue success.");
48 }
49
Run()50 void TaskQueue::Run()
51 {
52 DHLOGI("Task queue running.");
53 while (taskQueueReady_) {
54 if (isQuitTaskQueue_ && taskQueue_.empty()) {
55 DHLOGI("Task queue quit.");
56 break;
57 }
58 std::shared_ptr<TaskImplInterface> task = nullptr;
59 {
60 std::unique_lock<std::mutex> lck(taskQueueMutex_);
61 taskQueueCond_.wait_for(lck, std::chrono::milliseconds(TASK_WAIT_TIME),
62 [this]() { return !taskQueue_.empty(); });
63 if (taskQueue_.empty()) {
64 continue;
65 }
66 Consume(task);
67 }
68 if (task == nullptr) {
69 continue;
70 }
71 task->Run();
72 }
73 }
74
Consume(std::shared_ptr<TaskImplInterface> & task)75 void TaskQueue::Consume(std::shared_ptr<TaskImplInterface> &task)
76 {
77 task = taskQueue_.front();
78 taskQueue_.pop();
79 }
80
Produce(std::shared_ptr<TaskImplInterface> & task)81 int32_t TaskQueue::Produce(std::shared_ptr<TaskImplInterface> &task)
82 {
83 if (task == nullptr) {
84 DHLOGE("The parameter is empty.");
85 return ERR_DH_AUDIO_NULLPTR;
86 }
87 std::lock_guard<std::mutex> lck(taskQueueMutex_);
88 if (taskQueue_.size() >= maxSize_) {
89 DHLOGD("task queue is full, size: %zu", taskQueue_.size());
90 return ERR_DH_AUDIO_SA_TASKQUEUE_FULL;
91 }
92 taskQueue_.push(task);
93 taskQueueCond_.notify_one();
94 return DH_SUCCESS;
95 }
96 } // DistributedHardware
97 } // OHOS
98