AAudioEndpointManager.h revision c0c70e3c7dd10bc2c0caffcab1f3f5fb406b35fb 
1/*
2 * Copyright (C) 2017 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 AAUDIO_AAUDIO_ENDPOINT_MANAGER_H
18#define AAUDIO_AAUDIO_ENDPOINT_MANAGER_H
19
20#include <map>
21#include <mutex>
22#include <utils/Singleton.h>
23
24#include "binding/AAudioServiceMessage.h"
25#include "AAudioServiceEndpoint.h"
26
27namespace aaudio {
28
29class AAudioEndpointManager : public android::Singleton<AAudioEndpointManager>{
30public:
31    AAudioEndpointManager();
32    ~AAudioEndpointManager() = default;
33
34    /**
35     * Find a service endpoint for the given deviceId and direction.
36     * If an endpoint does not already exist then it will try to create one.
37     *
38     * @param deviceId
39     * @param direction
40     * @return endpoint or nullptr
41     */
42    AAudioServiceEndpoint *findEndpoint(android::AAudioService &audioService,
43                                        int32_t deviceId,
44                                        aaudio_direction_t direction);
45
46    void removeEndpoint(AAudioServiceEndpoint *serviceEndpoint);
47
48private:
49
50    std::mutex    mLock;
51
52    // We need separate inputs and outputs because they may both have device==0.
53    // TODO review
54    std::map<int32_t, AAudioServiceEndpoint *> mInputs;
55    std::map<int32_t, AAudioServiceEndpoint *> mOutputs;
56
57};
58
59} /* namespace aaudio */
60
61#endif //AAUDIO_AAUDIO_ENDPOINT_MANAGER_H
62