1 /*
2  * Copyright (C) 2015 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 <system/audio.h>
20 #include <utils/Errors.h>
21 #include <utils/RefBase.h>
22 #include <utils/Errors.h>
23 #include <utils/KeyedVector.h>
24 
25 namespace android {
26 
27 class AudioPatch : public RefBase
28 {
29 public:
30     AudioPatch(const struct audio_patch *patch, uid_t uid);
31 
32     status_t dump(int fd, int spaces, int index) const;
33 
34     audio_patch_handle_t mHandle;
35     struct audio_patch mPatch;
36     uid_t mUid;
37     audio_patch_handle_t mAfPatchHandle;
38 
39 private:
40     static volatile int32_t mNextUniqueId;
41 };
42 
43 class AudioPatchCollection : public DefaultKeyedVector<audio_patch_handle_t, sp<AudioPatch> >
44 {
45 public:
46     status_t addAudioPatch(audio_patch_handle_t handle, const sp<AudioPatch>& patch);
47 
48     status_t removeAudioPatch(audio_patch_handle_t handle);
49 
50     status_t listAudioPatches(unsigned int *num_patches, struct audio_patch *patches) const;
51 
52     status_t dump(int fd) const;
53 };
54 
55 }; // namespace android
56