Jon Spivack | 9f503a4 | 2019-10-22 16:49:19 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2019 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 | |
Amos Bianchi | 844e19b | 2020-12-23 09:57:02 -0800 | [diff] [blame] | 17 | #include "log/log_main.h" |
Jon Spivack | 9f503a4 | 2019-10-22 16:49:19 -0700 | [diff] [blame] | 18 | #define LOG_TAG "AidlLazyServiceRegistrar" |
| 19 | |
| 20 | #include <binder/LazyServiceRegistrar.h> |
| 21 | #include <binder/IPCThreadState.h> |
| 22 | #include <binder/IServiceManager.h> |
| 23 | #include <android/os/BnClientCallback.h> |
| 24 | #include <android/os/IServiceManager.h> |
| 25 | #include <utils/Log.h> |
| 26 | |
| 27 | namespace android { |
| 28 | namespace binder { |
| 29 | namespace internal { |
| 30 | |
| 31 | using AidlServiceManager = android::os::IServiceManager; |
| 32 | |
Jon Spivack | dc6cb05 | 2020-10-27 19:29:14 -0700 | [diff] [blame] | 33 | class ClientCounterCallbackImpl : public ::android::os::BnClientCallback { |
Jon Spivack | 9f503a4 | 2019-10-22 16:49:19 -0700 | [diff] [blame] | 34 | public: |
Jon Spivack | dc6cb05 | 2020-10-27 19:29:14 -0700 | [diff] [blame] | 35 | ClientCounterCallbackImpl() : mNumConnectedServices(0), mForcePersist(false) {} |
Jon Spivack | 9f503a4 | 2019-10-22 16:49:19 -0700 | [diff] [blame] | 36 | |
| 37 | bool registerService(const sp<IBinder>& service, const std::string& name, |
| 38 | bool allowIsolated, int dumpFlags); |
Jon Spivack | e17055a | 2020-03-06 13:58:01 -0800 | [diff] [blame] | 39 | void forcePersist(bool persist); |
| 40 | |
Amos Bianchi | 3f79694 | 2021-01-20 16:06:56 -0800 | [diff] [blame] | 41 | void setActiveServicesCallback(const std::function<bool(bool)>& activeServicesCallback); |
Amos Bianchi | 844e19b | 2020-12-23 09:57:02 -0800 | [diff] [blame] | 42 | |
Steven Moreland | 7a5889c | 2021-06-22 19:18:28 +0000 | [diff] [blame] | 43 | bool tryUnregisterLocked(); |
Amos Bianchi | 844e19b | 2020-12-23 09:57:02 -0800 | [diff] [blame] | 44 | |
Steven Moreland | 7a5889c | 2021-06-22 19:18:28 +0000 | [diff] [blame] | 45 | void reRegisterLocked(); |
Amos Bianchi | 844e19b | 2020-12-23 09:57:02 -0800 | [diff] [blame] | 46 | |
Jon Spivack | 9f503a4 | 2019-10-22 16:49:19 -0700 | [diff] [blame] | 47 | protected: |
| 48 | Status onClients(const sp<IBinder>& service, bool clients) override; |
| 49 | |
| 50 | private: |
Steven Moreland | dd20e7c | 2020-04-10 11:51:14 -0700 | [diff] [blame] | 51 | struct Service { |
| 52 | sp<IBinder> service; |
| 53 | bool allowIsolated; |
| 54 | int dumpFlags; |
| 55 | |
| 56 | // whether, based on onClients calls, we know we have a client for this |
| 57 | // service or not |
| 58 | bool clients = false; |
Xin Li | ca3e579 | 2021-02-21 09:43:11 -0800 | [diff] [blame] | 59 | bool registered = true; |
Steven Moreland | dd20e7c | 2020-04-10 11:51:14 -0700 | [diff] [blame] | 60 | }; |
| 61 | |
Steven Moreland | 7a5889c | 2021-06-22 19:18:28 +0000 | [diff] [blame] | 62 | bool registerServiceLocked(const sp<IBinder>& service, const std::string& name, |
| 63 | bool allowIsolated, int dumpFlags); |
| 64 | |
Steven Moreland | dd20e7c | 2020-04-10 11:51:14 -0700 | [diff] [blame] | 65 | /** |
| 66 | * Looks up a service guaranteed to be registered (service from onClients). |
| 67 | */ |
| 68 | std::map<std::string, Service>::iterator assertRegisteredService(const sp<IBinder>& service); |
| 69 | |
Jon Spivack | 9f503a4 | 2019-10-22 16:49:19 -0700 | [diff] [blame] | 70 | /** |
| 71 | * Unregisters all services that we can. If we can't unregister all, re-register other |
| 72 | * services. |
| 73 | */ |
Steven Moreland | 7a5889c | 2021-06-22 19:18:28 +0000 | [diff] [blame] | 74 | void tryShutdownLocked(); |
Jon Spivack | 9f503a4 | 2019-10-22 16:49:19 -0700 | [diff] [blame] | 75 | |
| 76 | /** |
Amos Bianchi | 844e19b | 2020-12-23 09:57:02 -0800 | [diff] [blame] | 77 | * Try to shutdown the process, unless: |
| 78 | * - 'forcePersist' is 'true', or |
| 79 | * - The active services count callback returns 'true', or |
| 80 | * - Some services have clients. |
| 81 | */ |
Steven Moreland | 7a5889c | 2021-06-22 19:18:28 +0000 | [diff] [blame] | 82 | void maybeTryShutdownLocked(); |
| 83 | |
| 84 | // for below |
| 85 | std::mutex mMutex; |
Amos Bianchi | 844e19b | 2020-12-23 09:57:02 -0800 | [diff] [blame] | 86 | |
Steven Moreland | dd20e7c | 2020-04-10 11:51:14 -0700 | [diff] [blame] | 87 | // count of services with clients |
Jon Spivack | 9f503a4 | 2019-10-22 16:49:19 -0700 | [diff] [blame] | 88 | size_t mNumConnectedServices; |
| 89 | |
Amos Bianchi | 3f79694 | 2021-01-20 16:06:56 -0800 | [diff] [blame] | 90 | // previous value passed to the active services callback |
| 91 | std::optional<bool> mPreviousHasClients; |
| 92 | |
Steven Moreland | dd20e7c | 2020-04-10 11:51:14 -0700 | [diff] [blame] | 93 | // map of registered names and services |
Jon Spivack | d9533c2 | 2020-01-27 22:19:22 +0000 | [diff] [blame] | 94 | std::map<std::string, Service> mRegisteredServices; |
Jon Spivack | e17055a | 2020-03-06 13:58:01 -0800 | [diff] [blame] | 95 | |
| 96 | bool mForcePersist; |
Amos Bianchi | 844e19b | 2020-12-23 09:57:02 -0800 | [diff] [blame] | 97 | |
Amos Bianchi | 3f79694 | 2021-01-20 16:06:56 -0800 | [diff] [blame] | 98 | // Callback used to report if there are services with clients |
| 99 | std::function<bool(bool)> mActiveServicesCallback; |
Jon Spivack | 9f503a4 | 2019-10-22 16:49:19 -0700 | [diff] [blame] | 100 | }; |
| 101 | |
Jon Spivack | dc6cb05 | 2020-10-27 19:29:14 -0700 | [diff] [blame] | 102 | class ClientCounterCallback { |
| 103 | public: |
| 104 | ClientCounterCallback(); |
| 105 | |
| 106 | bool registerService(const sp<IBinder>& service, const std::string& name, |
| 107 | bool allowIsolated, int dumpFlags); |
| 108 | |
| 109 | /** |
| 110 | * Set a flag to prevent services from automatically shutting down |
| 111 | */ |
| 112 | void forcePersist(bool persist); |
| 113 | |
Amos Bianchi | 3f79694 | 2021-01-20 16:06:56 -0800 | [diff] [blame] | 114 | void setActiveServicesCallback(const std::function<bool(bool)>& activeServicesCallback); |
Amos Bianchi | 844e19b | 2020-12-23 09:57:02 -0800 | [diff] [blame] | 115 | |
| 116 | bool tryUnregister(); |
| 117 | |
| 118 | void reRegister(); |
| 119 | |
Jon Spivack | dc6cb05 | 2020-10-27 19:29:14 -0700 | [diff] [blame] | 120 | private: |
| 121 | sp<ClientCounterCallbackImpl> mImpl; |
| 122 | }; |
| 123 | |
| 124 | bool ClientCounterCallbackImpl::registerService(const sp<IBinder>& service, const std::string& name, |
Jon Spivack | 9f503a4 | 2019-10-22 16:49:19 -0700 | [diff] [blame] | 125 | bool allowIsolated, int dumpFlags) { |
Steven Moreland | 7a5889c | 2021-06-22 19:18:28 +0000 | [diff] [blame] | 126 | std::lock_guard<std::mutex> lock(mMutex); |
| 127 | return registerServiceLocked(service, name, allowIsolated, dumpFlags); |
| 128 | } |
| 129 | |
| 130 | bool ClientCounterCallbackImpl::registerServiceLocked(const sp<IBinder>& service, |
| 131 | const std::string& name, bool allowIsolated, |
| 132 | int dumpFlags) { |
Jon Spivack | 718470e | 2020-02-19 19:18:21 -0800 | [diff] [blame] | 133 | auto manager = interface_cast<AidlServiceManager>(asBinder(defaultServiceManager())); |
Jon Spivack | 9f503a4 | 2019-10-22 16:49:19 -0700 | [diff] [blame] | 134 | |
Jon Spivack | d9533c2 | 2020-01-27 22:19:22 +0000 | [diff] [blame] | 135 | bool reRegister = mRegisteredServices.count(name) > 0; |
| 136 | std::string regStr = (reRegister) ? "Re-registering" : "Registering"; |
| 137 | ALOGI("%s service %s", regStr.c_str(), name.c_str()); |
Jon Spivack | 9f503a4 | 2019-10-22 16:49:19 -0700 | [diff] [blame] | 138 | |
Steven Moreland | 48c73e0 | 2021-05-10 18:31:34 +0000 | [diff] [blame] | 139 | if (Status status = manager->addService(name.c_str(), service, allowIsolated, dumpFlags); |
| 140 | !status.isOk()) { |
| 141 | ALOGE("Failed to register service %s (%s)", name.c_str(), status.toString8().c_str()); |
Jon Spivack | 9f503a4 | 2019-10-22 16:49:19 -0700 | [diff] [blame] | 142 | return false; |
| 143 | } |
| 144 | |
Jon Spivack | d9533c2 | 2020-01-27 22:19:22 +0000 | [diff] [blame] | 145 | if (!reRegister) { |
Steven Moreland | 48c73e0 | 2021-05-10 18:31:34 +0000 | [diff] [blame] | 146 | if (Status status = |
| 147 | manager->registerClientCallback(name, service, |
| 148 | sp<android::os::IClientCallback>::fromExisting( |
| 149 | this)); |
| 150 | !status.isOk()) { |
| 151 | ALOGE("Failed to add client callback for service %s (%s)", name.c_str(), |
| 152 | status.toString8().c_str()); |
Steven Moreland | 6077425 | 2020-04-10 15:25:01 -0700 | [diff] [blame] | 153 | return false; |
| 154 | } |
| 155 | |
Jon Spivack | d9533c2 | 2020-01-27 22:19:22 +0000 | [diff] [blame] | 156 | // Only add this when a service is added for the first time, as it is not removed |
Steven Moreland | dd20e7c | 2020-04-10 11:51:14 -0700 | [diff] [blame] | 157 | mRegisteredServices[name] = { |
| 158 | .service = service, |
| 159 | .allowIsolated = allowIsolated, |
| 160 | .dumpFlags = dumpFlags |
| 161 | }; |
Jon Spivack | d9533c2 | 2020-01-27 22:19:22 +0000 | [diff] [blame] | 162 | } |
Jon Spivack | 9f503a4 | 2019-10-22 16:49:19 -0700 | [diff] [blame] | 163 | |
| 164 | return true; |
| 165 | } |
| 166 | |
Jon Spivack | 143a10d | 2020-10-27 19:29:14 -0700 | [diff] [blame] | 167 | std::map<std::string, ClientCounterCallbackImpl::Service>::iterator ClientCounterCallbackImpl::assertRegisteredService(const sp<IBinder>& service) { |
Steven Moreland | dd20e7c | 2020-04-10 11:51:14 -0700 | [diff] [blame] | 168 | LOG_ALWAYS_FATAL_IF(service == nullptr, "Got onClients callback for null service"); |
| 169 | for (auto it = mRegisteredServices.begin(); it != mRegisteredServices.end(); ++it) { |
| 170 | auto const& [name, registered] = *it; |
| 171 | (void) name; |
| 172 | if (registered.service != service) continue; |
| 173 | return it; |
| 174 | } |
| 175 | LOG_ALWAYS_FATAL("Got callback on service which we did not register: %s", String8(service->getInterfaceDescriptor()).c_str()); |
| 176 | __builtin_unreachable(); |
| 177 | } |
| 178 | |
Jon Spivack | dc6cb05 | 2020-10-27 19:29:14 -0700 | [diff] [blame] | 179 | void ClientCounterCallbackImpl::forcePersist(bool persist) { |
Steven Moreland | 7a5889c | 2021-06-22 19:18:28 +0000 | [diff] [blame] | 180 | std::lock_guard<std::mutex> lock(mMutex); |
Jon Spivack | e17055a | 2020-03-06 13:58:01 -0800 | [diff] [blame] | 181 | mForcePersist = persist; |
Amos Bianchi | 3f79694 | 2021-01-20 16:06:56 -0800 | [diff] [blame] | 182 | if (!mForcePersist) { |
Jon Spivack | e17055a | 2020-03-06 13:58:01 -0800 | [diff] [blame] | 183 | // Attempt a shutdown in case the number of clients hit 0 while the flag was on |
Steven Moreland | 7a5889c | 2021-06-22 19:18:28 +0000 | [diff] [blame] | 184 | maybeTryShutdownLocked(); |
Amos Bianchi | 844e19b | 2020-12-23 09:57:02 -0800 | [diff] [blame] | 185 | } |
| 186 | } |
| 187 | |
Steven Moreland | 7a5889c | 2021-06-22 19:18:28 +0000 | [diff] [blame] | 188 | bool ClientCounterCallbackImpl::tryUnregisterLocked() { |
Amos Bianchi | 844e19b | 2020-12-23 09:57:02 -0800 | [diff] [blame] | 189 | auto manager = interface_cast<AidlServiceManager>(asBinder(defaultServiceManager())); |
| 190 | |
| 191 | for (auto& [name, entry] : mRegisteredServices) { |
Steven Moreland | 48c73e0 | 2021-05-10 18:31:34 +0000 | [diff] [blame] | 192 | Status status = manager->tryUnregisterService(name, entry.service); |
Amos Bianchi | 844e19b | 2020-12-23 09:57:02 -0800 | [diff] [blame] | 193 | |
Steven Moreland | 48c73e0 | 2021-05-10 18:31:34 +0000 | [diff] [blame] | 194 | if (!status.isOk()) { |
| 195 | ALOGI("Failed to unregister service %s (%s)", name.c_str(), status.toString8().c_str()); |
Amos Bianchi | 844e19b | 2020-12-23 09:57:02 -0800 | [diff] [blame] | 196 | return false; |
| 197 | } |
| 198 | entry.registered = false; |
| 199 | } |
| 200 | |
| 201 | return true; |
| 202 | } |
| 203 | |
Steven Moreland | 7a5889c | 2021-06-22 19:18:28 +0000 | [diff] [blame] | 204 | void ClientCounterCallbackImpl::reRegisterLocked() { |
Amos Bianchi | 844e19b | 2020-12-23 09:57:02 -0800 | [diff] [blame] | 205 | for (auto& [name, entry] : mRegisteredServices) { |
| 206 | // re-register entry if not already registered |
| 207 | if (entry.registered) { |
| 208 | continue; |
| 209 | } |
| 210 | |
Steven Moreland | 7a5889c | 2021-06-22 19:18:28 +0000 | [diff] [blame] | 211 | if (!registerServiceLocked(entry.service, name, entry.allowIsolated, entry.dumpFlags)) { |
Amos Bianchi | 844e19b | 2020-12-23 09:57:02 -0800 | [diff] [blame] | 212 | // Must restart. Otherwise, clients will never be able to get a hold of this service. |
| 213 | LOG_ALWAYS_FATAL("Bad state: could not re-register services"); |
| 214 | } |
| 215 | |
| 216 | entry.registered = true; |
| 217 | } |
| 218 | } |
| 219 | |
Steven Moreland | 7a5889c | 2021-06-22 19:18:28 +0000 | [diff] [blame] | 220 | void ClientCounterCallbackImpl::maybeTryShutdownLocked() { |
Amos Bianchi | 844e19b | 2020-12-23 09:57:02 -0800 | [diff] [blame] | 221 | if (mForcePersist) { |
| 222 | ALOGI("Shutdown prevented by forcePersist override flag."); |
| 223 | return; |
| 224 | } |
| 225 | |
| 226 | bool handledInCallback = false; |
Amos Bianchi | 3f79694 | 2021-01-20 16:06:56 -0800 | [diff] [blame] | 227 | if (mActiveServicesCallback != nullptr) { |
| 228 | bool hasClients = mNumConnectedServices != 0; |
| 229 | if (hasClients != mPreviousHasClients) { |
| 230 | handledInCallback = mActiveServicesCallback(hasClients); |
| 231 | mPreviousHasClients = hasClients; |
| 232 | } |
Amos Bianchi | 844e19b | 2020-12-23 09:57:02 -0800 | [diff] [blame] | 233 | } |
| 234 | |
| 235 | // If there is no callback defined or the callback did not handle this |
| 236 | // client count change event, try to shutdown the process if its services |
| 237 | // have no clients. |
| 238 | if (!handledInCallback && mNumConnectedServices == 0) { |
Steven Moreland | 7a5889c | 2021-06-22 19:18:28 +0000 | [diff] [blame] | 239 | tryShutdownLocked(); |
Jon Spivack | e17055a | 2020-03-06 13:58:01 -0800 | [diff] [blame] | 240 | } |
| 241 | } |
| 242 | |
Jon Spivack | dc6cb05 | 2020-10-27 19:29:14 -0700 | [diff] [blame] | 243 | Status ClientCounterCallbackImpl::onClients(const sp<IBinder>& service, bool clients) { |
Steven Moreland | 7a5889c | 2021-06-22 19:18:28 +0000 | [diff] [blame] | 244 | std::lock_guard<std::mutex> lock(mMutex); |
Steven Moreland | dd20e7c | 2020-04-10 11:51:14 -0700 | [diff] [blame] | 245 | auto & [name, registered] = *assertRegisteredService(service); |
| 246 | if (registered.clients == clients) { |
| 247 | LOG_ALWAYS_FATAL("Process already thought %s had clients: %d but servicemanager has " |
| 248 | "notified has clients: %d", name.c_str(), registered.clients, clients); |
| 249 | } |
| 250 | registered.clients = clients; |
| 251 | |
| 252 | // update cache count of clients |
| 253 | { |
| 254 | size_t numWithClients = 0; |
| 255 | for (const auto& [name, registered] : mRegisteredServices) { |
| 256 | (void) name; |
| 257 | if (registered.clients) numWithClients++; |
| 258 | } |
| 259 | mNumConnectedServices = numWithClients; |
Jon Spivack | 9f503a4 | 2019-10-22 16:49:19 -0700 | [diff] [blame] | 260 | } |
| 261 | |
| 262 | ALOGI("Process has %zu (of %zu available) client(s) in use after notification %s has clients: %d", |
Steven Moreland | dd20e7c | 2020-04-10 11:51:14 -0700 | [diff] [blame] | 263 | mNumConnectedServices, mRegisteredServices.size(), name.c_str(), clients); |
Jon Spivack | 9f503a4 | 2019-10-22 16:49:19 -0700 | [diff] [blame] | 264 | |
Steven Moreland | 7a5889c | 2021-06-22 19:18:28 +0000 | [diff] [blame] | 265 | maybeTryShutdownLocked(); |
Jon Spivack | 9f503a4 | 2019-10-22 16:49:19 -0700 | [diff] [blame] | 266 | return Status::ok(); |
| 267 | } |
| 268 | |
Steven Moreland | 7a5889c | 2021-06-22 19:18:28 +0000 | [diff] [blame] | 269 | void ClientCounterCallbackImpl::tryShutdownLocked() { |
| 270 | ALOGI("Trying to shut down the service. No clients in use for any service in process."); |
Jon Spivack | e17055a | 2020-03-06 13:58:01 -0800 | [diff] [blame] | 271 | |
Steven Moreland | 7a5889c | 2021-06-22 19:18:28 +0000 | [diff] [blame] | 272 | if (tryUnregisterLocked()) { |
| 273 | ALOGI("Unregistered all clients and exiting"); |
| 274 | exit(EXIT_SUCCESS); |
| 275 | } |
Jon Spivack | e17055a | 2020-03-06 13:58:01 -0800 | [diff] [blame] | 276 | |
Steven Moreland | 7a5889c | 2021-06-22 19:18:28 +0000 | [diff] [blame] | 277 | reRegisterLocked(); |
Amos Bianchi | 844e19b | 2020-12-23 09:57:02 -0800 | [diff] [blame] | 278 | } |
Jon Spivack | 9f503a4 | 2019-10-22 16:49:19 -0700 | [diff] [blame] | 279 | |
Amos Bianchi | 3f79694 | 2021-01-20 16:06:56 -0800 | [diff] [blame] | 280 | void ClientCounterCallbackImpl::setActiveServicesCallback(const std::function<bool(bool)>& |
| 281 | activeServicesCallback) { |
Steven Moreland | 7a5889c | 2021-06-22 19:18:28 +0000 | [diff] [blame] | 282 | std::lock_guard<std::mutex> lock(mMutex); |
Amos Bianchi | 3f79694 | 2021-01-20 16:06:56 -0800 | [diff] [blame] | 283 | mActiveServicesCallback = activeServicesCallback; |
Jon Spivack | 9f503a4 | 2019-10-22 16:49:19 -0700 | [diff] [blame] | 284 | } |
| 285 | |
Jon Spivack | dc6cb05 | 2020-10-27 19:29:14 -0700 | [diff] [blame] | 286 | ClientCounterCallback::ClientCounterCallback() { |
Jon Spivack | 143a10d | 2020-10-27 19:29:14 -0700 | [diff] [blame] | 287 | mImpl = sp<ClientCounterCallbackImpl>::make(); |
Jon Spivack | dc6cb05 | 2020-10-27 19:29:14 -0700 | [diff] [blame] | 288 | } |
| 289 | |
| 290 | bool ClientCounterCallback::registerService(const sp<IBinder>& service, const std::string& name, |
| 291 | bool allowIsolated, int dumpFlags) { |
| 292 | return mImpl->registerService(service, name, allowIsolated, dumpFlags); |
| 293 | } |
| 294 | |
| 295 | void ClientCounterCallback::forcePersist(bool persist) { |
| 296 | mImpl->forcePersist(persist); |
| 297 | } |
| 298 | |
Amos Bianchi | 3f79694 | 2021-01-20 16:06:56 -0800 | [diff] [blame] | 299 | void ClientCounterCallback::setActiveServicesCallback(const std::function<bool(bool)>& |
| 300 | activeServicesCallback) { |
| 301 | mImpl->setActiveServicesCallback(activeServicesCallback); |
Amos Bianchi | 844e19b | 2020-12-23 09:57:02 -0800 | [diff] [blame] | 302 | } |
| 303 | |
| 304 | bool ClientCounterCallback::tryUnregister() { |
Steven Moreland | 7a5889c | 2021-06-22 19:18:28 +0000 | [diff] [blame] | 305 | // see comments in header, this should only be called from the active |
| 306 | // services callback, see also b/191781736 |
| 307 | return mImpl->tryUnregisterLocked(); |
Amos Bianchi | 844e19b | 2020-12-23 09:57:02 -0800 | [diff] [blame] | 308 | } |
| 309 | |
| 310 | void ClientCounterCallback::reRegister() { |
Steven Moreland | 7a5889c | 2021-06-22 19:18:28 +0000 | [diff] [blame] | 311 | // see comments in header, this should only be called from the active |
| 312 | // services callback, see also b/191781736 |
| 313 | mImpl->reRegisterLocked(); |
Amos Bianchi | 844e19b | 2020-12-23 09:57:02 -0800 | [diff] [blame] | 314 | } |
| 315 | |
Jon Spivack | 9f503a4 | 2019-10-22 16:49:19 -0700 | [diff] [blame] | 316 | } // namespace internal |
| 317 | |
| 318 | LazyServiceRegistrar::LazyServiceRegistrar() { |
| 319 | mClientCC = std::make_shared<internal::ClientCounterCallback>(); |
| 320 | } |
| 321 | |
| 322 | LazyServiceRegistrar& LazyServiceRegistrar::getInstance() { |
| 323 | static auto registrarInstance = new LazyServiceRegistrar(); |
| 324 | return *registrarInstance; |
| 325 | } |
| 326 | |
| 327 | status_t LazyServiceRegistrar::registerService(const sp<IBinder>& service, const std::string& name, |
| 328 | bool allowIsolated, int dumpFlags) { |
| 329 | if (!mClientCC->registerService(service, name, allowIsolated, dumpFlags)) { |
| 330 | return UNKNOWN_ERROR; |
| 331 | } |
| 332 | return OK; |
| 333 | } |
| 334 | |
Jon Spivack | e17055a | 2020-03-06 13:58:01 -0800 | [diff] [blame] | 335 | void LazyServiceRegistrar::forcePersist(bool persist) { |
| 336 | mClientCC->forcePersist(persist); |
| 337 | } |
| 338 | |
Amos Bianchi | 3f79694 | 2021-01-20 16:06:56 -0800 | [diff] [blame] | 339 | void LazyServiceRegistrar::setActiveServicesCallback(const std::function<bool(bool)>& |
| 340 | activeServicesCallback) { |
| 341 | mClientCC->setActiveServicesCallback(activeServicesCallback); |
Amos Bianchi | 844e19b | 2020-12-23 09:57:02 -0800 | [diff] [blame] | 342 | } |
| 343 | |
| 344 | bool LazyServiceRegistrar::tryUnregister() { |
| 345 | return mClientCC->tryUnregister(); |
| 346 | } |
| 347 | |
| 348 | void LazyServiceRegistrar::reRegister() { |
| 349 | mClientCC->reRegister(); |
| 350 | } |
| 351 | |
Jon Spivack | 9f503a4 | 2019-10-22 16:49:19 -0700 | [diff] [blame] | 352 | } // namespace hardware |
Amos Bianchi | 844e19b | 2020-12-23 09:57:02 -0800 | [diff] [blame] | 353 | } // namespace android |