You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
90 lines
3.5 KiB
90 lines
3.5 KiB
/*
|
|
* Copyright 2020 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#ifndef CPP_WATCHDOG_SERVER_TESTS_LOOPERSTUB_H_
|
|
#define CPP_WATCHDOG_SERVER_TESTS_LOOPERSTUB_H_
|
|
|
|
#include <android-base/chrono_utils.h>
|
|
#include <android-base/result.h>
|
|
#include <time.h>
|
|
#include <utils/Looper.h>
|
|
#include <utils/Mutex.h>
|
|
#include <utils/StrongPointer.h>
|
|
|
|
#include <functional>
|
|
#include <vector>
|
|
|
|
#include "LooperWrapper.h"
|
|
|
|
namespace android {
|
|
namespace automotive {
|
|
namespace watchdog {
|
|
namespace testing {
|
|
|
|
// LooperStub allows polling the underlying looper deterministically.
|
|
// NOTE: Current implementation only works for one handler.
|
|
class LooperStub : public LooperWrapper {
|
|
public:
|
|
LooperStub() : mHandler(nullptr), mShouldPoll(false), mTimer(0) {}
|
|
|
|
nsecs_t now() override { return mTimer.count(); }
|
|
// No-op when mShouldPoll is false. Otherwise, sends messages (in a non-empty CacheEntry from
|
|
// the front of |mCache|) to the underlying looper and polls the looper immediately.
|
|
int pollAll(int timeoutMillis) override;
|
|
|
|
// Updates the front of |mCache| with the given message so the next pollAll call to the
|
|
// underlying looper will poll this message.
|
|
void sendMessage(const android::sp<MessageHandler>& handler, const Message& message) override;
|
|
|
|
// Updates the seconds(uptimeDelay) position in |mCache| with the given message.
|
|
// Thus |uptimeDelay| should be convertible to seconds without any fractions. uptimeDelay is
|
|
// computed from (uptime - now).
|
|
void sendMessageAtTime(nsecs_t uptime, const android::sp<MessageHandler>& handler,
|
|
const Message& message) override;
|
|
|
|
// Removes all the messages from the cache and looper for |mHandler|.
|
|
void removeMessages(const android::sp<MessageHandler>& handler) override;
|
|
|
|
// Removes the |what| message from the cache and looper for |mHandler|.
|
|
void removeMessages(const android::sp<MessageHandler>& handler, int what) override;
|
|
|
|
// Sets |mShouldPoll| so that the subsequent |pollAll| call processes the next non-empty
|
|
// CacheEntry in |mCache|. Before returning, waits for the pollAll call sent to the underlying
|
|
// looper to complete. Thus the caller can be certain this message was processed.
|
|
android::base::Result<void> pollCache();
|
|
|
|
// Number of seconds elapsed since the last pollAll call to the underlying looper.
|
|
nsecs_t numSecondsElapsed() {
|
|
return std::chrono::duration_cast<std::chrono::seconds>(mElapsedTime).count();
|
|
}
|
|
|
|
private:
|
|
Mutex mMutex;
|
|
android::sp<MessageHandler> mHandler;
|
|
using CacheEntry = std::vector<Message>; // Messages to process on a given second.
|
|
std::vector<CacheEntry> mCache; // Messages pending to be processed.
|
|
bool mShouldPoll;
|
|
std::chrono::nanoseconds mTimer;
|
|
std::chrono::nanoseconds mElapsedTime;
|
|
};
|
|
|
|
} // namespace testing
|
|
} // namespace watchdog
|
|
} // namespace automotive
|
|
} // namespace android
|
|
|
|
#endif // CPP_WATCHDOG_SERVER_TESTS_LOOPERSTUB_H_
|