Merge "Add simple fake for native service manager." am: dc77bdf2ae am: bd7016a59c (7f3995f6) · Commits · e / os / platform_frameworks_native

libs/fakeservicemanager/Android.bp

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		cc_defaults {
		name: "fakeservicemanager_defaults",
		srcs: [
		"ServiceManager.cpp",
		],

		shared_libs: [
		"libbinder",
		"libutils",
		],
		}

		cc_library {
		name: "libfakeservicemanager",
		defaults: ["fakeservicemanager_defaults"],
		}

		cc_test_host {
		name: "fakeservicemanager_test",
		defaults: ["fakeservicemanager_defaults"],
		srcs: [
		"test_sm.cpp",
		],
		static_libs: ["libgmock"],
		}

libs/fakeservicemanager/ServiceManager.cpp

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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 "ServiceManager.h"

		namespace android {

		ServiceManager::ServiceManager() {}

		sp<IBinder> ServiceManager::getService( const String16& name) const {
		// Servicemanager is single-threaded and cannot block. This method exists for legacy reasons.
		return checkService(name);
		}

		sp<IBinder> ServiceManager::checkService( const String16& name) const {
		auto it = mNameToService.find(name);
		if (it == mNameToService.end()) {
		return nullptr;
		}
		return it->second;
		}

		status_t ServiceManager::addService(const String16& name, const sp<IBinder>& service,
		bool /allowIsolated/,
		int /dumpsysFlags/) {
		mNameToService[name] = service;
		return NO_ERROR;
		}

		Vector<String16> ServiceManager::listServices(int /dumpsysFlags/) {
		Vector<String16> services;
		for (auto const& [name, service] : mNameToService) {
		(void) service;
		services.push_back(name);
		}
		return services;
		}

		IBinder* ServiceManager::onAsBinder() {
		return nullptr;
		}

		sp<IBinder> ServiceManager::waitForService(const String16& name) {
		return checkService(name);
		}

		bool ServiceManager::isDeclared(const String16& name) {
		return mNameToService.find(name) != mNameToService.end();
		}

		} // namespace android

libs/fakeservicemanager/ServiceManager.h

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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.
		*/

		#pragma once

		#include <binder/IServiceManager.h>

		#include <map>

		namespace android {

		/**
		* A local host simple implementation of IServiceManager, that does not
		* communicate over binder.
		*/
		class ServiceManager : public IServiceManager {
		public:
		ServiceManager();

		/**
		* Equivalent of checkService.
		*/
		sp<IBinder> getService( const String16& name) const override;

		/**
		* Retrieve an existing service, non-blocking.
		*/
		sp<IBinder> checkService( const String16& name) const override;

		/**
		* Register a service.
		*/
		status_t addService(const String16& name, const sp<IBinder>& service,
		bool allowIsolated = false,
		int dumpsysFlags = DUMP_FLAG_PRIORITY_DEFAULT) override;

		/**
		* Return list of all existing services.
		*/
		Vector<String16> listServices(int dumpsysFlags = 0) override;

		IBinder* onAsBinder() override;

		/**
		* Effectively no-oped in this implementation - equivalent to checkService.
		*/
		sp<IBinder> waitForService(const String16& name) override;

		/**
		* Check if a service is declared (e.g. VINTF manifest).
		*
		* If this returns true, waitForService should always be able to return the
		* service.
		*/
		bool isDeclared(const String16& name) override;

		private:
		std::map<String16, sp<IBinder>> mNameToService;
		};

		} // namespace android

libs/fakeservicemanager/test_sm.cpp

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		/*
		* Copyright (C) 2019 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 <gtest/gtest.h>
		#include <gmock/gmock.h>

		#include <binder/Binder.h>
		#include <binder/ProcessState.h>
		#include <binder/IServiceManager.h>

		#include "ServiceManager.h"

		using android::sp;
		using android::BBinder;
		using android::IBinder;
		using android::OK;
		using android::status_t;
		using android::ServiceManager;
		using android::String16;
		using android::IServiceManager;
		using testing::ElementsAre;

		static sp<IBinder> getBinder() {
		class LinkableBinder : public BBinder {
		status_t linkToDeath(const sp<DeathRecipient>&, void*, uint32_t) override {
		// let SM linkToDeath
		return OK;
		}
		};

		return new LinkableBinder;
		}

		TEST(AddService, HappyHappy) {
		auto sm = new ServiceManager();
		EXPECT_EQ(sm->addService(String16("foo"), getBinder(), false /allowIsolated/,
		IServiceManager::DUMP_FLAG_PRIORITY_DEFAULT), OK);
		}

		TEST(AddService, HappyOverExistingService) {
		auto sm = new ServiceManager();
		EXPECT_EQ(sm->addService(String16("foo"), getBinder(), false /allowIsolated/,
		IServiceManager::DUMP_FLAG_PRIORITY_DEFAULT), OK);
		EXPECT_EQ(sm->addService(String16("foo"), getBinder(), false /allowIsolated/,
		IServiceManager::DUMP_FLAG_PRIORITY_DEFAULT), OK);
		}

		TEST(GetService, HappyHappy) {
		auto sm = new ServiceManager();
		sp<IBinder> service = getBinder();

		EXPECT_EQ(sm->addService(String16("foo"), service, false /allowIsolated/,
		IServiceManager::DUMP_FLAG_PRIORITY_DEFAULT), OK);

		EXPECT_EQ(sm->getService(String16("foo")), service);
		}

		TEST(GetService, NonExistant) {
		auto sm = new ServiceManager();

		EXPECT_EQ(sm->getService(String16("foo")), nullptr);
		}

		TEST(ListServices, AllServices) {
		auto sm = new ServiceManager();

		EXPECT_EQ(sm->addService(String16("sd"), getBinder(), false /allowIsolated/,
		IServiceManager::DUMP_FLAG_PRIORITY_DEFAULT), OK);
		EXPECT_EQ(sm->addService(String16("sc"), getBinder(), false /allowIsolated/,
		IServiceManager::DUMP_FLAG_PRIORITY_NORMAL), OK);
		EXPECT_EQ(sm->addService(String16("sb"), getBinder(), false /allowIsolated/,
		IServiceManager::DUMP_FLAG_PRIORITY_HIGH), OK);
		EXPECT_EQ(sm->addService(String16("sa"), getBinder(), false /allowIsolated/,
		IServiceManager::DUMP_FLAG_PRIORITY_CRITICAL), OK);

		android::Vector<String16> out = sm->listServices(IServiceManager::DUMP_FLAG_PRIORITY_ALL);

		// all there and in the right order
		EXPECT_THAT(out, ElementsAre(String16("sa"), String16("sb"), String16("sc"),
		String16("sd")));
		}

		TEST(WaitForService, NonExistant) {
		auto sm = new ServiceManager();

		EXPECT_EQ(sm->waitForService(String16("foo")), nullptr);
		}

		TEST(WaitForService, HappyHappy) {
		auto sm = new ServiceManager();
		sp<IBinder> service = getBinder();

		EXPECT_EQ(sm->addService(String16("foo"), service, false /allowIsolated/,
		IServiceManager::DUMP_FLAG_PRIORITY_DEFAULT), OK);

		EXPECT_EQ(sm->waitForService(String16("foo")), service);
		}

		TEST(IsDeclared, NonExistant) {
		auto sm = new ServiceManager();

		EXPECT_FALSE(sm->isDeclared(String16("foo")));
		}

		TEST(IsDeclared, HappyHappy) {
		auto sm = new ServiceManager();
		sp<IBinder> service = getBinder();

		EXPECT_EQ(sm->addService(String16("foo"), service, false /allowIsolated/,
		IServiceManager::DUMP_FLAG_PRIORITY_DEFAULT), OK);

		EXPECT_TRUE(sm->isDeclared(String16("foo")));
		}