1 /*
2  * Copyright (c) 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 #ifndef FFRT_SERIAL_QUEUE_H
16 #define FFRT_SERIAL_QUEUE_H
17 
18 #include "base_queue.h"
19 
20 namespace ffrt {
21 class SerialQueue : public BaseQueue {
22 public:
SerialQueue()23     explicit SerialQueue()
24     {
25         dequeFunc_ = QueueStrategy<QueueTask>::DequeBatch;
26     }
27     ~SerialQueue() override;
28 
29     int Push(QueueTask* task) override;
30     QueueTask* Pull() override;
31 
GetActiveStatus()32     bool GetActiveStatus() override
33     {
34         std::unique_lock lock(mutex_);
35         return isActiveState_.load();
36     }
37 
GetQueueType()38     int GetQueueType() const override
39     {
40         return ffrt_queue_serial;
41     }
42 
43     // initial value of overload threshold is 16
44     uint32_t overloadThreshold_ = 16;
45 };
46 
47 std::unique_ptr<BaseQueue> CreateSerialQueue(const ffrt_queue_attr_t* attr);
48 } // namespace ffrt
49 
50 #endif // FFRT_SERIAL_QUEUE_H
51