1 /*
2  * Copyright 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 #pragma once
18 
19 #include "common/contextual_callback.h"
20 #include "hci/hci_packets.h"
21 #include "os/handler.h"
22 #include "os/utils.h"
23 
24 namespace bluetooth {
25 namespace hci {
26 
27 typedef std::variant<CommandStatusView, CommandCompleteView> CommandStatusOrCompleteView;
28 
29 template <typename T>
30 class CommandInterface {
31 public:
32   CommandInterface() = default;
33   CommandInterface(const CommandInterface&) = delete;
34   CommandInterface& operator=(const CommandInterface&) = delete;
35 
36   virtual ~CommandInterface() = default;
37 
38   virtual void EnqueueCommand(
39           std::unique_ptr<T> command,
40           common::ContextualOnceCallback<void(CommandCompleteView)> on_complete) = 0;
41 
42   virtual void EnqueueCommand(
43           std::unique_ptr<T> command,
44           common::ContextualOnceCallback<void(CommandStatusView)> on_status) = 0;
45 
46   virtual void EnqueueCommand(std::unique_ptr<T> command,
47                               common::ContextualOnceCallback<void(CommandStatusOrCompleteView)>
48                                       on_status_or_complete) = 0;
49 };
50 }  // namespace hci
51 }  // namespace bluetooth
52