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/*
* Copyright (C) 2020 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "fakeservicemanager/FakeServiceManager.h"
using android::sp;
using android::FakeServiceManager;
using android::setDefaultServiceManager;
namespace android {
FakeServiceManager::FakeServiceManager() {}
sp<IBinder> FakeServiceManager::getService( const String16& name) const {
// Servicemanager is single-threaded and cannot block. This method exists for legacy reasons.
return checkService(name);
}
sp<IBinder> FakeServiceManager::checkService( const String16& name) const {
std::lock_guard<std::mutex> l(mMutex);
auto it = mNameToService.find(name);
if (it == mNameToService.end()) {
return nullptr;
}
return it->second;
}
status_t FakeServiceManager::addService(const String16& name, const sp<IBinder>& service,
bool /*allowIsolated*/,
int /*dumpsysFlags*/) {
std::lock_guard<std::mutex> l(mMutex);
if (service == nullptr) {
return UNEXPECTED_NULL;
}
mNameToService[name] = service;
return NO_ERROR;
}
Vector<String16> FakeServiceManager::listServices(int /*dumpsysFlags*/) {
std::lock_guard<std::mutex> l(mMutex);
Vector<String16> services;
for (auto const& [name, service] : mNameToService) {
(void) service;
services.push_back(name);
}
return services;
}
IBinder* FakeServiceManager::onAsBinder() {
return nullptr;
}
sp<IBinder> FakeServiceManager::waitForService(const String16& name) {
return checkService(name);
}
bool FakeServiceManager::isDeclared(const String16& name) {
std::lock_guard<std::mutex> l(mMutex);
return mNameToService.find(name) != mNameToService.end();
}
Vector<String16> FakeServiceManager::getDeclaredInstances(const String16& name) {
std::lock_guard<std::mutex> l(mMutex);
Vector<String16> out;
const String16 prefix = name + String16("/");
for (const auto& [registeredName, service] : mNameToService) {
(void) service;
if (registeredName.startsWith(prefix)) {
out.add(String16(registeredName.c_str() + prefix.size()));
}
}
return out;
}
std::optional<String16> FakeServiceManager::updatableViaApex(const String16& name) {
(void)name;
return std::nullopt;
}
Vector<String16> FakeServiceManager::getUpdatableNames(const String16& apexName) {
(void)apexName;
return {};
}
std::optional<IServiceManager::ConnectionInfo> FakeServiceManager::getConnectionInfo(
const String16& name) {
(void)name;
return std::nullopt;
}
status_t FakeServiceManager::registerForNotifications(const String16&,
const sp<LocalRegistrationCallback>&) {
return INVALID_OPERATION;
}
status_t FakeServiceManager::unregisterForNotifications(const String16&,
const sp<LocalRegistrationCallback>&) {
return INVALID_OPERATION;
}
std::vector<IServiceManager::ServiceDebugInfo> FakeServiceManager::getServiceDebugInfo() {
std::vector<IServiceManager::ServiceDebugInfo> ret;
return ret;
}
void FakeServiceManager::clear() {
std::map<String16, sp<IBinder>> backup;
{
std::lock_guard<std::mutex> l(mMutex);
backup = mNameToService;
mNameToService.clear();
}
// destructors may access FSM, so avoid recursive lock
backup.clear(); // explicit
// TODO: destructors may have added more services here - may want
// to check this or abort
}
} // namespace android
[[clang::no_destroy]] static sp<FakeServiceManager> gFakeServiceManager;
[[clang::no_destroy]] static std::once_flag gSmOnce;
extern "C" {
// Setup FakeServiceManager to mock dependencies in test using this API for rust backend
void setupFakeServiceManager() {
/* Create a FakeServiceManager instance and add required services */
std::call_once(gSmOnce, [&]() {
gFakeServiceManager = new FakeServiceManager();
android::setDefaultServiceManager(gFakeServiceManager);
});
}
// Clear existing services from Fake SM for rust backend
void clearFakeServiceManager() {
LOG_ALWAYS_FATAL_IF(gFakeServiceManager == nullptr, "Fake Service Manager is not available. Forgot to call setupFakeServiceManager?");
gFakeServiceManager->clear();
}
} //extern "C"
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