1 /**
2  * Copyright (c) 2020, The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *     http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #ifndef WATCHDOG_SERVER_SRC_LOOPERWRAPPER_H_
18 #define WATCHDOG_SERVER_SRC_LOOPERWRAPPER_H_
19 
20 #include <utils/Looper.h>
21 #include <utils/RefBase.h>
22 #include <utils/Timers.h>
23 
24 namespace android {
25 namespace automotive {
26 namespace watchdog {
27 
28 // LooperWrapper is a wrapper around the actual looper implementation so tests can stub this wrapper
29 // to deterministically poll the underlying looper.
30 // Refer to utils/Looper.h for the class and methods descriptions.
31 class LooperWrapper : public RefBase {
32 public:
LooperWrapper()33     LooperWrapper() : mLooper(nullptr) {}
~LooperWrapper()34     virtual ~LooperWrapper() {}
35 
setLooper(sp<Looper> looper)36     void setLooper(sp<Looper> looper) { mLooper = looper; }
37     void wake();
now()38     virtual nsecs_t now() { return systemTime(SYSTEM_TIME_MONOTONIC); }
39     virtual int pollAll(int timeoutMillis);
40     virtual void sendMessage(const android::sp<MessageHandler>& handler, const Message& message);
41     virtual void sendMessageAtTime(nsecs_t uptime, const android::sp<MessageHandler>& handler,
42                                    const Message& message);
43     virtual void removeMessages(const android::sp<MessageHandler>& handler);
44 
45 protected:
46     android::sp<Looper> mLooper;
47 };
48 
49 }  // namespace watchdog
50 }  // namespace automotive
51 }  // namespace android
52 
53 #endif  //  WATCHDOG_SERVER_SRC_LOOPERWRAPPER_H_
54