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 "HandleGenerator.h"
20 #include <system/audio.h>
21 #include <utils/Errors.h>
22 #include <utils/RefBase.h>
23 #include <utils/Errors.h>
24 #include <utils/KeyedVector.h>
25 #include <utils/String8.h>
26 
27 namespace android {
28 
29 class AudioPatch : public RefBase, private HandleGenerator<audio_patch_handle_t>
30 {
31 public:
32     AudioPatch(const struct audio_patch *patch, uid_t uid);
33 
getHandle()34     audio_patch_handle_t getHandle() const { return mHandle; }
35 
getAfHandle()36     audio_patch_handle_t getAfHandle() const { return mAfPatchHandle; }
37 
setAfHandle(audio_patch_handle_t afHandle)38     void setAfHandle(audio_patch_handle_t afHandle) { mAfPatchHandle = afHandle; }
39 
getUid()40     uid_t getUid() const { return mUid; }
41 
setUid(uid_t uid)42     void setUid(uid_t uid) { mUid = uid; }
43 
44     void dump(String8 *dst, int spaces, int index) const;
45 
46     struct audio_patch mPatch;
47 
48 private:
49     const audio_patch_handle_t mHandle;
50     uid_t mUid;
51     audio_patch_handle_t mAfPatchHandle = AUDIO_PATCH_HANDLE_NONE;
52 };
53 
54 class AudioPatchCollection : public DefaultKeyedVector<audio_patch_handle_t, sp<AudioPatch> >
55 {
56 public:
57     status_t addAudioPatch(audio_patch_handle_t handle, const sp<AudioPatch>& patch);
58 
59     status_t removeAudioPatch(audio_patch_handle_t handle);
60 
61     status_t listAudioPatches(unsigned int *num_patches, struct audio_patch *patches) const;
62 
63     void dump(String8 *dst) const;
64 };
65 
66 } // namespace android
67