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// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef FLUTTER_FML_PLATFORM_ANDROID_MESSAGE_LOOP_ANDROID_H_
#define FLUTTER_FML_PLATFORM_ANDROID_MESSAGE_LOOP_ANDROID_H_
#include <android/looper.h>
#include <atomic>
#include "flutter/fml/macros.h"
#include "flutter/fml/message_loop_impl.h"
#include "flutter/fml/unique_fd.h"
namespace fml {
struct UniqueLooperTraits {
static ALooper* InvalidValue() { return nullptr; }
static bool IsValid(ALooper* value) { return value != nullptr; }
static void Free(ALooper* value) { ::ALooper_release(value); }
};
/// Android implementation of \p MessageLoopImpl.
///
/// This implemenation wraps usage of Android's \p looper.
/// \see https://developer.android.com/ndk/reference/group/looper
class MessageLoopAndroid : public MessageLoopImpl {
private:
fml::UniqueObject<ALooper*, UniqueLooperTraits> looper_;
fml::UniqueFD timer_fd_;
bool running_ = false;
MessageLoopAndroid();
~MessageLoopAndroid() override;
void Run() override;
void Terminate() override;
void WakeUp(fml::TimePoint time_point) override;
void OnEventFired();
FML_FRIEND_MAKE_REF_COUNTED(MessageLoopAndroid);
FML_FRIEND_REF_COUNTED_THREAD_SAFE(MessageLoopAndroid);
FML_DISALLOW_COPY_AND_ASSIGN(MessageLoopAndroid);
};
} // namespace fml
#endif // FLUTTER_FML_PLATFORM_ANDROID_MESSAGE_LOOP_ANDROID_H_