1 /*
2 * Copyright (C) 2022 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 #ifdef LAZY_SERVICE
18 #define LOG_TAG "[email protected]"
19 #else
20 #define LOG_TAG "[email protected]"
21 #endif
22
23 #include <aidl/android/hardware/camera/provider/ICameraProvider.h>
24 #include <android/binder_manager.h>
25 #include <android/binder_process.h>
26 #include <apex_update_listener.h>
27 #include <cutils/properties.h>
28 #include <hidl/HidlTransportSupport.h>
29 #include <malloc.h>
30 #include <utils/AndroidThreads.h>
31 #include <utils/Errors.h>
32
33 #include <cinttypes>
34
35 #include "aidl_camera_build_version.h"
36 #include "aidl_camera_provider.h"
37
38 using aidl::android::hardware::camera::provider::ICameraProvider;
39 using ::android::hardware::camera::provider::implementation::AidlCameraProvider;
40
41 #ifdef LAZY_SERVICE
42 const bool kLazyService = true;
43 #else
44 const bool kLazyService = false;
45 #endif
46
47 const std::string kProviderInstance = "/internal/0";
48
main()49 int main() {
50 ALOGI("Google camera provider service is starting.");
51 mallopt(M_DECAY_TIME, 1);
52 android::hardware::configureRpcThreadpool(/*maxThreads=*/6,
53 /*callerWillJoin=*/true);
54
55 // Don't depend on vndbinder setting up threads in case we stop using them
56 // some day
57 ABinderProcess_setThreadPoolMaxThreadCount(6);
58 ABinderProcess_startThreadPool();
59
60 #ifdef __ANDROID_APEX__
61 int start_count = property_get_int32("vendor.camera.hal.start.count", 0);
62 property_set("vendor.camera.hal.start.count",
63 std::to_string(++start_count).c_str());
64 property_set("vendor.camera.hal.version",
65 std::to_string(kHalManifestBuildNumber).c_str());
66 property_set("vendor.camera.hal.build_id", kAndroidBuildId);
67 auto start_on_update =
68 ApexUpdateListener::Make("com.google.pixel.camera.hal", [](auto, auto) {
69 ALOGI("APEX version updated. starting.");
70 exit(0);
71 });
72 ALOGI(
73 "Using ApexUpdateListener: %p Start Count: %d Current Version: %s "
74 "(%" PRId64 ")",
75 start_on_update.get(), start_count, kAndroidBuildId,
76 kHalManifestBuildNumber);
77 #else
78 ALOGI("Not using ApexUpdateListener since not running in an apex.");
79 #endif
80
81 std::shared_ptr<ICameraProvider> camera_provider =
82 AidlCameraProvider::Create();
83 if (camera_provider == nullptr) {
84 return android::NO_INIT;
85 }
86 std::string instance =
87 std::string() + AidlCameraProvider::descriptor + kProviderInstance;
88 if (kLazyService) {
89 if (AServiceManager_registerLazyService(camera_provider->asBinder().get(),
90 instance.c_str()) != STATUS_OK) {
91 ALOGE("Cannot register AIDL Google camera provider lazy service");
92 return android::NO_INIT;
93 }
94 } else {
95 if (AServiceManager_addService(camera_provider->asBinder().get(),
96 instance.c_str()) != STATUS_OK) {
97 ALOGE("Cannot register AIDL Google camera provider service");
98 return android::NO_INIT;
99 }
100 }
101 androidSetThreadName("google.camera.provider");
102 ABinderProcess_joinThreadPool();
103
104 // In normal operation, the threadpool should never return.
105 return EXIT_FAILURE;
106 }
107