health: add libhealthshim

This is a shim library that wraps a HIDL IHealth to
an AIDL BnHealth.

Also add tests for the library.

Bug: 177269435
Test: libhealthshim_test

Change-Id: Ia5f32c1ae0693c70cf698b46b48d5f77006cf6c7
diff --git a/health/aidl/Android.bp b/health/aidl/Android.bp
index fae7592..6e2f1d4 100644
--- a/health/aidl/Android.bp
+++ b/health/aidl/Android.bp
@@ -25,6 +25,7 @@
     name: "android.hardware.health",
     vendor_available: true,
     recovery_available: true,
+    host_supported: true,
     srcs: ["android/hardware/health/*.aidl"],
     stability: "vintf",
     backend: {
@@ -48,6 +49,7 @@
     name: "android.hardware.health-translate-ndk",
     vendor_available: true,
     recovery_available: true,
+    host_supported: true,
     srcs: ["android/hardware/health/translate-ndk.cpp"],
     shared_libs: [
         "libbinder_ndk",
@@ -61,6 +63,9 @@
         "android.hardware.health@2.0",
         "android.hardware.health@2.1",
     ],
+    defaults: [
+        "libbinder_ndk_host_user",
+    ],
 }
 
 java_library {
diff --git a/health/aidl/android/hardware/health/translate-ndk.cpp b/health/aidl/android/hardware/health/translate-ndk.cpp
index 7fe6ced..78880cc 100644
--- a/health/aidl/android/hardware/health/translate-ndk.cpp
+++ b/health/aidl/android/hardware/health/translate-ndk.cpp
@@ -106,36 +106,41 @@
 }
 
 __attribute__((warn_unused_result)) bool translate(
+        const ::android::hardware::health::V2_0::HealthInfo& in,
+        aidl::android::hardware::health::HealthInfo* out) {
+    out->chargerAcOnline = static_cast<bool>(in.legacy.chargerAcOnline);
+    out->chargerUsbOnline = static_cast<bool>(in.legacy.chargerUsbOnline);
+    out->chargerWirelessOnline = static_cast<bool>(in.legacy.chargerWirelessOnline);
+    out->maxChargingCurrentMicroamps = static_cast<int32_t>(in.legacy.maxChargingCurrent);
+    out->maxChargingVoltageMicrovolts = static_cast<int32_t>(in.legacy.maxChargingVoltage);
+    out->batteryStatus =
+            static_cast<aidl::android::hardware::health::BatteryStatus>(in.legacy.batteryStatus);
+    out->batteryHealth =
+            static_cast<aidl::android::hardware::health::BatteryHealth>(in.legacy.batteryHealth);
+    out->batteryPresent = static_cast<bool>(in.legacy.batteryPresent);
+    out->batteryLevel = static_cast<int32_t>(in.legacy.batteryLevel);
+    out->batteryVoltageMillivolts = static_cast<int32_t>(in.legacy.batteryVoltage);
+    out->batteryTemperatureTenthsCelsius = static_cast<int32_t>(in.legacy.batteryTemperature);
+    out->batteryCurrentMicroamps = static_cast<int32_t>(in.legacy.batteryCurrent);
+    out->batteryCycleCount = static_cast<int32_t>(in.legacy.batteryCycleCount);
+    out->batteryFullChargeUah = static_cast<int32_t>(in.legacy.batteryFullCharge);
+    out->batteryChargeCounterUah = static_cast<int32_t>(in.legacy.batteryChargeCounter);
+    out->batteryTechnology = in.legacy.batteryTechnology;
+    out->batteryCurrentAverageMicroamps = static_cast<int32_t>(in.batteryCurrentAverage);
+    out->diskStats.clear();
+    out->diskStats.resize(in.diskStats.size());
+    for (size_t i = 0; i < in.diskStats.size(); ++i)
+        if (!translate(in.diskStats[i], &out->diskStats[i])) return false;
+    out->storageInfos.clear();
+    out->storageInfos.resize(in.storageInfos.size());
+    for (size_t i = 0; i < in.storageInfos.size(); ++i)
+        if (!translate(in.storageInfos[i], &out->storageInfos[i])) return false;
+    return true;
+}
+__attribute__((warn_unused_result)) bool translate(
         const ::android::hardware::health::V2_1::HealthInfo& in,
         aidl::android::hardware::health::HealthInfo* out) {
-    out->chargerAcOnline = static_cast<bool>(in.legacy.legacy.chargerAcOnline);
-    out->chargerUsbOnline = static_cast<bool>(in.legacy.legacy.chargerUsbOnline);
-    out->chargerWirelessOnline = static_cast<bool>(in.legacy.legacy.chargerWirelessOnline);
-    out->maxChargingCurrentMicroamps = static_cast<int32_t>(in.legacy.legacy.maxChargingCurrent);
-    out->maxChargingVoltageMicrovolts = static_cast<int32_t>(in.legacy.legacy.maxChargingVoltage);
-    out->batteryStatus = static_cast<aidl::android::hardware::health::BatteryStatus>(
-            in.legacy.legacy.batteryStatus);
-    out->batteryHealth = static_cast<aidl::android::hardware::health::BatteryHealth>(
-            in.legacy.legacy.batteryHealth);
-    out->batteryPresent = static_cast<bool>(in.legacy.legacy.batteryPresent);
-    out->batteryLevel = static_cast<int32_t>(in.legacy.legacy.batteryLevel);
-    out->batteryVoltageMillivolts = static_cast<int32_t>(in.legacy.legacy.batteryVoltage);
-    out->batteryTemperatureTenthsCelsius =
-            static_cast<int32_t>(in.legacy.legacy.batteryTemperature);
-    out->batteryCurrentMicroamps = static_cast<int32_t>(in.legacy.legacy.batteryCurrent);
-    out->batteryCycleCount = static_cast<int32_t>(in.legacy.legacy.batteryCycleCount);
-    out->batteryFullChargeUah = static_cast<int32_t>(in.legacy.legacy.batteryFullCharge);
-    out->batteryChargeCounterUah = static_cast<int32_t>(in.legacy.legacy.batteryChargeCounter);
-    out->batteryTechnology = in.legacy.legacy.batteryTechnology;
-    out->batteryCurrentAverageMicroamps = static_cast<int32_t>(in.legacy.batteryCurrentAverage);
-    out->diskStats.clear();
-    out->diskStats.resize(in.legacy.diskStats.size());
-    for (size_t i = 0; i < in.legacy.diskStats.size(); ++i)
-        if (!translate(in.legacy.diskStats[i], &out->diskStats[i])) return false;
-    out->storageInfos.clear();
-    out->storageInfos.resize(in.legacy.storageInfos.size());
-    for (size_t i = 0; i < in.legacy.storageInfos.size(); ++i)
-        if (!translate(in.legacy.storageInfos[i], &out->storageInfos[i])) return false;
+    if (!translate(in.legacy, out)) return false;
     out->batteryCapacityLevel = static_cast<aidl::android::hardware::health::BatteryCapacityLevel>(
             in.batteryCapacityLevel);
     out->batteryChargeTimeToFullNowSeconds =
diff --git a/health/aidl/include/android/hardware/health/translate-ndk.h b/health/aidl/include/android/hardware/health/translate-ndk.h
index 2f8fe04..91add42 100644
--- a/health/aidl/include/android/hardware/health/translate-ndk.h
+++ b/health/aidl/include/android/hardware/health/translate-ndk.h
@@ -33,6 +33,9 @@
         const ::android::hardware::health::V2_0::DiskStats& in,
         aidl::android::hardware::health::DiskStats* out);
 __attribute__((warn_unused_result)) bool translate(
+        const ::android::hardware::health::V2_0::HealthInfo& in,
+        aidl::android::hardware::health::HealthInfo* out);
+__attribute__((warn_unused_result)) bool translate(
         const ::android::hardware::health::V2_1::HealthInfo& in,
         aidl::android::hardware::health::HealthInfo* out);