dumpstate example: use new lazy hal mechanism

hwservicemanager will now shutdown the service when it is not in use.
This puts less restrictions on clients.

Bug: N/A
Test: build only (this is an example implementation not used on any
    device)

Change-Id: I4641e727f6e4c3ca5d97d53a66b3cc0fee6f12f3

2 files changed, 8 insertions, 9 deletions

diff --git a/dumpstate/1.0/default/DumpstateDevice.cpp b/dumpstate/1.0/default/DumpstateDevice.cpp
index 25d92b0acd..c57bf43dbf 100644
--- a/dumpstate/1.0/default/DumpstateDevice.cpp
+++ b/dumpstate/1.0/default/DumpstateDevice.cpp
@@ -37,11 +37,6 @@ Return<void> DumpstateDevice::dumpstateBoard(const hidl_handle& handle) {
     // NOTE: this is just an example on how to use the DumpstateUtil.h functions to implement
     // this interface.
 
-    // Exit when dump is completed since this is a lazy HAL.
-    addPostCommandTask([]() {
-        exit(0);
-    });
-
     if (handle == nullptr || handle->numFds < 1) {
         ALOGE("no FDs\n");
         return Void();
diff --git a/dumpstate/1.0/default/service.cpp b/dumpstate/1.0/default/service.cpp
index 4f276b7d40..76c72b5b25 100644
--- a/dumpstate/1.0/default/service.cpp
+++ b/dumpstate/1.0/default/service.cpp
@@ -15,22 +15,26 @@
  */
 #define LOG_TAG "android.hardware.dumpstate@1.0-service"
 
+#include <hidl/HidlLazyUtils.h>
 #include <hidl/HidlSupport.h>
 #include <hidl/HidlTransportSupport.h>
 
 #include "DumpstateDevice.h"
 
+using ::android::OK;
+using ::android::sp;
 using ::android::hardware::configureRpcThreadpool;
+using ::android::hardware::joinRpcThreadpool;
+using ::android::hardware::LazyServiceRegistrar;
 using ::android::hardware::dumpstate::V1_0::IDumpstateDevice;
 using ::android::hardware::dumpstate::V1_0::implementation::DumpstateDevice;
-using ::android::hardware::joinRpcThreadpool;
-using ::android::OK;
-using ::android::sp;
 
 int main(int /* argc */, char* /* argv */ []) {
     sp<IDumpstateDevice> dumpstate = new DumpstateDevice;
     configureRpcThreadpool(1, true /* will join */);
-    if (dumpstate->registerAsService() != OK) {
+
+    auto registrar = LazyServiceRegistrar::getInstance();
+    if (registrar.registerService(dumpstate) != OK) {
         ALOGE("Could not register service.");
         return 1;
     }