Add CarPowerManagerNative

Add native interface to interace with CarPowerManagementService.
This CL consists of the following pieces:

- PowerTestService:  Test code to exercise the native itnerface.
- libcarpowermanager.so:  Shared library to be included by native
services that want to interact with CarPowerManagementService.

Bug: 32061842
Test: PowerTestService

Change-Id: Ife320d09f02961f9de65b214c8b3dc394fc39396
Merged-In: I8cfabd36f5d5b72727f04b5ba184ec44e83d79c2

5 files changed, 158 insertions, 0 deletions

diff --git a/tests/PowerTestService/Android.mk b/tests/PowerTestService/Android.mk
new file mode 100644
index 0000000000..aefea30215
--- /dev/null
+++ b/tests/PowerTestService/Android.mk
@@ -0,0 +1,49 @@
+# Copyright (C) 2018 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.
+
+LOCAL_PATH:= $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := com.android.car.powertestservice
+
+BOARD_SEPOLICY_DIRS += \
+    packages/services/Car/tests/PowerTestService/sepolicy
+
+LOCAL_SRC_FILES := \
+    src/main.cpp
+
+LOCAL_CFLAGS += \
+    -Wall \
+    -Wextra \
+    -Werror \
+    -Wno-unused-parameter
+
+LOCAL_C_INCLUDES += \
+    frameworks/base/include \
+    packages/services/Car/car-lib/native/include
+
+LOCAL_SHARED_LIBRARIES := \
+    libbinder \
+    libcarpowermanager \
+    liblog \
+    libutils
+
+LOCAL_MODULE_CLASS := EXECUTABLES
+
+LOCAL_INIT_RC := com.android.car.powertestservice.rc
+LOCAL_MODULE_TAGS := optional
+
+include $(BUILD_EXECUTABLE)
+
diff --git a/tests/PowerTestService/com.android.car.powertestservice.rc b/tests/PowerTestService/com.android.car.powertestservice.rc
new file mode 100644
index 0000000000..db272375bf
--- /dev/null
+++ b/tests/PowerTestService/com.android.car.powertestservice.rc
@@ -0,0 +1,21 @@
+# Copyright (C) 2018 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.
+
+service com.android.car.powertestservice /system/bin/com.android.car.powertestservice
+    class core
+    user system
+    group system
+
+on boot && property:boot.car_service_created=1
+    start com.android.car.powertestservice
diff --git a/tests/PowerTestService/sepolicy/com.android.car.powertestservice.te b/tests/PowerTestService/sepolicy/com.android.car.powertestservice.te
new file mode 100644
index 0000000000..d27f6c0d33
--- /dev/null
+++ b/tests/PowerTestService/sepolicy/com.android.car.powertestservice.te
@@ -0,0 +1,6 @@
+type powertestservice, domain, coredomain;
+type powertestservice_exec, exec_type, file_type;
+
+init_daemon_domain(powertestservice)
+
+allow system_app powertestservice:binder call;
diff --git a/tests/PowerTestService/sepolicy/file_contexts b/tests/PowerTestService/sepolicy/file_contexts
new file mode 100644
index 0000000000..7be7605f41
--- /dev/null
+++ b/tests/PowerTestService/sepolicy/file_contexts
@@ -0,0 +1 @@
+/system/bin/com\.android\.car\.powertestservice     u:object_r:powertestservice_exec:s0
diff --git a/tests/PowerTestService/src/main.cpp b/tests/PowerTestService/src/main.cpp
new file mode 100644
index 0000000000..acd14edc33
--- /dev/null
+++ b/tests/PowerTestService/src/main.cpp
@@ -0,0 +1,81 @@
+/*
+ * Copyright (C) 2018 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.
+ */
+
+#define LOG_TAG "PowerTestService"
+
+#include <signal.h>
+#include <utils/Log.h>
+
+#include <binder/IPCThreadState.h>
+#include <binder/ProcessState.h>
+#include <binder/IServiceManager.h>
+#include <binder/IBinder.h>
+#include <binder/IInterface.h>
+
+#include "android/car/ICar.h"
+#include "android/car/hardware/power/ICarPower.h"
+#include "CarPowerManager.h"
+
+using namespace android;
+using namespace android::binder;
+using namespace android::car;
+using namespace android::car::hardware::power;
+
+static std::atomic_bool run(true);
+
+void onStateChanged(CarPowerManager::State state) {
+    ALOGE("onStateChanged callback = %d", state);
+    // Stop the loop
+    run = false;
+}
+
+int main(int, char**)
+{
+    int retVal;
+
+    sp<ProcessState> processSelf(ProcessState::self());
+    processSelf->startThreadPool();
+    ALOGE(LOG_TAG " started");
+
+    std::unique_ptr<CarPowerManager> carPowerManager(new CarPowerManager());
+
+    do {
+        retVal = carPowerManager->setListener(onStateChanged);
+    } while (retVal != 0);
+
+    do {
+        CarPowerManager::BootReason bootReason;
+        // Test code
+        retVal = carPowerManager->getBootReason(&bootReason);
+
+        if (retVal == 0) {
+            ALOGE("bootreason = %d", bootReason);
+        } else {
+            ALOGE("ERROR:  Could not read bootReason!!");
+        }
+
+        sleep(5);
+    } while (run);
+
+    // Unregister the listener
+    carPowerManager->clearListener();
+
+    // Wait for threads to finish, and then exit.
+    IPCThreadState::self()->joinThreadPool();
+    ALOGE(LOG_TAG " joined and going down");
+    return 0;
+}
+