Merge changes from topic "lazy-dumpstate"

* changes:
  Make dumpstate HAL lazy.
  dumpstate: add interface into rc file

dumpstate/1.0/default/DumpstateDevice.cpp

@@ -18,6 +18,7 @@
 
 #include "DumpstateDevice.h"
 
+#include <hidl/HidlBinderSupport.h>
 #include <log/log.h>
 
 #include "DumpstateUtil.h"
@@ -37,6 +38,11 @@ Return<void> DumpstateDevice::dumpstateBoard(const hidl_handle& handle) {
     // this interface - since HIDL_FETCH_IDumpstateDevice() is not defined, this function will never
     // be called by dumpstate.
 
+    // 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();

dumpstate/1.0/default/android.hardware.dumpstate@1.0-service.rc

@@ -2,3 +2,6 @@ service dumpstate-1-0 /vendor/bin/hw/android.hardware.dumpstate@1.0-service
     class hal
     user system
     group system
+    interface android.hardware.dumpstate@1.0::IDumpstateDevice default
+    oneshot
+    disabled