1 /*
2 * Copyright (C) 2021 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 #include <vintf/VintfObjectRecovery.h>
18
19 #include "VintfObjectUtils.h"
20 #include "constants-private.h"
21 #include "utils.h"
22
23 using std::placeholders::_1;
24 using std::placeholders::_2;
25
26 namespace android::vintf {
27
28 using details::Get;
29 using details::kSystemManifest;
30 using details::kSystemManifestFragmentDir;
31
GetInstance()32 std::shared_ptr<VintfObjectRecovery> VintfObjectRecovery::GetInstance() {
33 static details::LockedSharedPtr<VintfObjectRecovery> sInstance{};
34 std::unique_lock<std::mutex> lock(sInstance.mutex);
35 if (sInstance.object == nullptr) {
36 std::unique_ptr<VintfObjectRecovery> uptr =
37 VintfObjectRecovery::Builder().build<VintfObjectRecovery>();
38 sInstance.object = std::shared_ptr<VintfObjectRecovery>(uptr.release());
39 }
40 return sInstance.object;
41 }
42
getRecoveryHalManifest()43 std::shared_ptr<const HalManifest> VintfObjectRecovery::getRecoveryHalManifest() {
44 return Get(__func__, &mRecoveryManifest,
45 std::bind(&VintfObjectRecovery::fetchRecoveryHalManifest, this, _1, _2));
46 }
47
48 // All manifests are installed under /system/etc/vintf.
49 // There may be mixed framework and device manifests under that directory. Treat them all
50 // as device manifest fragments.
51 // Priority:
52 // 1. /system/etc/vintf/manifest.xml
53 // + /system/etc/vintf/manifest/*.xml if they exist
fetchRecoveryHalManifest(HalManifest * out,std::string * error)54 status_t VintfObjectRecovery::fetchRecoveryHalManifest(HalManifest* out, std::string* error) {
55 HalManifest manifest;
56 status_t systemEtcStatus = fetchOneHalManifest(kSystemManifest, &manifest, error);
57 if (systemEtcStatus != OK && systemEtcStatus != NAME_NOT_FOUND) {
58 return systemEtcStatus;
59 }
60 // Merge |manifest| to |out| only if the main manifest is found.
61 if (systemEtcStatus == OK) {
62 *out = std::move(manifest);
63 }
64 out->setType(SchemaType::DEVICE);
65 status_t fragmentStatus =
66 addDirectoryManifests(kSystemManifestFragmentDir, out, true /* forceSchemaType */, error);
67 if (fragmentStatus != OK) {
68 return fragmentStatus;
69 }
70 return OK;
71 }
72
Builder()73 VintfObjectRecovery::Builder::Builder()
74 : VintfObjectBuilder(std::unique_ptr<VintfObject>(new VintfObjectRecovery())) {}
75
76 } // namespace android::vintf
77