healthd: move HealthServiceCommon

... to hardware/interfaces. HealthServiceCommon
becomes two separate libraries:
- libhealthservicedefault for services on vendor
- libhealthservicehealthd for healthd

Test: boots
Bug: 63702641
Change-Id: Ibc7096328bb36356cb653e542bab900cd046fe8a
diff --git a/healthd/Android.bp b/healthd/Android.bp
index df12ff0..c70278a 100644
--- a/healthd/Android.bp
+++ b/healthd/Android.bp
@@ -26,12 +26,10 @@
     vendor: true,
     relative_install_path: "hw",
     srcs: [
-        "HealthServiceCommon.cpp",
         "HealthServiceDefault.cpp",
     ],
 
     cflags: [
-        "-DHEALTH_INSTANCE_NAME=\"default\"",
         "-Wall",
         "-Werror",
     ],
@@ -39,6 +37,7 @@
     static_libs: [
         "android.hardware.health@2.0-impl",
         "android.hardware.health@1.0-convert",
+        "libhealthservice",
         "libhealthstoragedefault",
         "libbatterymonitor",
     ],
@@ -58,13 +57,11 @@
 cc_binary {
     name: "healthd",
     srcs: [
-        "HealthServiceCommon.cpp",
         "HealthServiceHealthd.cpp",
     ],
     local_include_dirs: ["include"],
 
     cflags: [
-        "-DHEALTH_INSTANCE_NAME=\"backup\"",
         "-Wall",
         "-Werror",
     ],
@@ -72,6 +69,7 @@
     static_libs: [
         "android.hardware.health@2.0-impl",
         "android.hardware.health@1.0-convert",
+        "libhealthservice",
         "libbatterymonitor",
         "libhealthstoragedefault",
     ],
diff --git a/healthd/HealthServiceCommon.cpp b/healthd/HealthServiceCommon.cpp
deleted file mode 100644
index a2ca44b..0000000
--- a/healthd/HealthServiceCommon.cpp
+++ /dev/null
@@ -1,89 +0,0 @@
-/*
- * Copyright 2017 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.
- */
-
-// This is a reference implementation for health@2.0 HAL. A vendor
-// can write its own HealthService.cpp with customized init and update functions.
-
-#define LOG_TAG "health@2.0/" HEALTH_INSTANCE_NAME
-#include <android-base/logging.h>
-
-#include <android/hardware/health/1.0/types.h>
-#include <hal_conversion.h>
-#include <health2/Health.h>
-#include <healthd/healthd.h>
-#include <hidl/HidlTransportSupport.h>
-
-using android::hardware::IPCThreadState;
-using android::hardware::configureRpcThreadpool;
-using android::hardware::handleTransportPoll;
-using android::hardware::setupTransportPolling;
-using android::hardware::health::V2_0::HealthInfo;
-using android::hardware::health::V1_0::hal_conversion::convertToHealthInfo;
-using android::hardware::health::V2_0::IHealth;
-using android::hardware::health::V2_0::implementation::Health;
-
-extern int healthd_main(void);
-
-static int gBinderFd = -1;
-
-static void binder_event(uint32_t /*epevents*/) {
-    if (gBinderFd >= 0) handleTransportPoll(gBinderFd);
-}
-
-void healthd_mode_service_2_0_init(struct healthd_config* config) {
-    LOG(INFO) << LOG_TAG << " Hal is starting up...";
-
-    gBinderFd = setupTransportPolling();
-
-    if (gBinderFd >= 0) {
-        if (healthd_register_event(gBinderFd, binder_event))
-            LOG(ERROR) << LOG_TAG << ": Register for binder events failed";
-    }
-
-    android::sp<IHealth> service = Health::initInstance(config);
-    CHECK_EQ(service->registerAsService(HEALTH_INSTANCE_NAME), android::OK)
-        << LOG_TAG << ": Failed to register HAL";
-
-    LOG(INFO) << LOG_TAG << ": Hal init done";
-}
-
-int healthd_mode_service_2_0_preparetowait(void) {
-    IPCThreadState::self()->flushCommands();
-    return -1;
-}
-
-void healthd_mode_service_2_0_heartbeat(void) {
-    // noop
-}
-
-void healthd_mode_service_2_0_battery_update(struct android::BatteryProperties* prop) {
-    HealthInfo info;
-    convertToHealthInfo(prop, info.legacy);
-    Health::getImplementation()->notifyListeners(&info);
-}
-
-static struct healthd_mode_ops healthd_mode_service_2_0_ops = {
-    .init = healthd_mode_service_2_0_init,
-    .preparetowait = healthd_mode_service_2_0_preparetowait,
-    .heartbeat = healthd_mode_service_2_0_heartbeat,
-    .battery_update = healthd_mode_service_2_0_battery_update,
-};
-
-int main() {
-    healthd_mode_ops = &healthd_mode_service_2_0_ops;
-    LOG(INFO) << LOG_TAG << ": Hal starting main loop...";
-    return healthd_main();
-}
diff --git a/healthd/HealthServiceDefault.cpp b/healthd/HealthServiceDefault.cpp
index dbc480f..89ecc2f 100644
--- a/healthd/HealthServiceDefault.cpp
+++ b/healthd/HealthServiceDefault.cpp
@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+#include <health2/service.h>
 #include <healthd/healthd.h>
 
 void healthd_board_init(struct healthd_config*) {
@@ -32,3 +33,7 @@
     // return 0 to log periodic polled battery status to kernel log
     return 0;
 }
+
+int main() {
+    return health_service_main();
+}
diff --git a/healthd/HealthServiceHealthd.cpp b/healthd/HealthServiceHealthd.cpp
index 72a446a..5fd2597 100644
--- a/healthd/HealthServiceHealthd.cpp
+++ b/healthd/HealthServiceHealthd.cpp
@@ -20,6 +20,7 @@
 #include <android/hardware/health/1.0/IHealth.h>
 #include <android/hardware/health/1.0/types.h>
 #include <hal_conversion.h>
+#include <health2/service.h>
 #include <healthd/healthd.h>
 #include <hidl/HidlTransportSupport.h>
 
@@ -86,3 +87,7 @@
 
     return logthis;
 }
+
+int main() {
+    return health_service_main("backup");
+}