1 /*
2 * Copyright (C) 2016 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 ANDROID_HARDWARE_ISERVICE_MANAGER_H
18 #define ANDROID_HARDWARE_ISERVICE_MANAGER_H
19
20 #include <string>
21
22 #include <android/hidl/base/1.0/IBase.h>
23 #include <utils/StrongPointer.h>
24
25 namespace android {
26
27 namespace hidl {
28 namespace manager {
29 namespace V1_0 {
30 struct IServiceManager;
31 } // namespace V1_0
32 namespace V1_1 {
33 struct IServiceManager;
34 } // namespace V1_1
35 namespace V1_2 {
36 struct IServiceManager;
37 } // namespace V1_2
38 } // namespace manager
39 } // namespace hidl
40
41 namespace hardware {
42
43 namespace details {
44
45 // Will not attempt to start a lazy HAL
46 // e.x.: android.hardware.foo@1.0::IFoo, default
47 void waitForHwService(const std::string &interface, const std::string &instanceName);
48
49 void preloadPassthroughService(const std::string &descriptor);
50
51 // Returns a service with the following constraints:
52 // - retry => service is waited for and returned if available in this process
53 // - getStub => internal only. Forces to get the unwrapped (no BsFoo) if available.
54 // TODO(b/65843592)
55 // If the service is a remote service, this function returns BpBase. If the service is
56 // a passthrough service, this function returns the appropriately wrapped Bs child object.
57 sp<::android::hidl::base::V1_0::IBase> getRawServiceInternal(const std::string& descriptor,
58 const std::string& instance,
59 bool retry, bool getStub);
60
61 status_t registerAsServiceInternal(const sp<::android::hidl::base::V1_0::IBase>& service,
62 const std::string& name);
63 } // namespace details
64
65 // These functions are for internal use by hidl. If you want to get ahold
66 // of an interface, the best way to do this is by calling IFoo::getService()
67 sp<::android::hidl::manager::V1_0::IServiceManager> defaultServiceManager();
68 sp<::android::hidl::manager::V1_1::IServiceManager> defaultServiceManager1_1();
69 sp<::android::hidl::manager::V1_2::IServiceManager> defaultServiceManager1_2();
70 sp<::android::hidl::manager::V1_0::IServiceManager> getPassthroughServiceManager();
71 sp<::android::hidl::manager::V1_1::IServiceManager> getPassthroughServiceManager1_1();
72
73 /**
74 * Given a service that is in passthrough mode, this function will go ahead and load the
75 * required passthrough module library (but not call HIDL_FETCH_I* functions to instantiate it).
76 *
77 * E.x.: preloadPassthroughService<IFoo>();
78 */
79 template<typename I>
preloadPassthroughService()80 static inline void preloadPassthroughService() {
81 details::preloadPassthroughService(I::descriptor);
82 }
83
84 } // namespace hardware
85 } // namespace android
86
87 #endif // ANDROID_HARDWARE_ISERVICE_MANAGER_H
88
89