healthd: Implement scheduleUpdate

scheduleUpdate forces a healthd battery update,
which will notify all listeners.
Test: Manual (strace -p $healthd_pid)
Bug: 32645990

Change-Id: I8b19f79b633ca8988f0e3dd5be14757f6421ddcb

2 files changed, 5 insertions, 0 deletions

diff --git a/healthd/BatteryPropertiesRegistrar.cpp b/healthd/BatteryPropertiesRegistrar.cpp
index d28ba41ff..523e1f136 100644
--- a/healthd/BatteryPropertiesRegistrar.cpp
+++ b/healthd/BatteryPropertiesRegistrar.cpp
@@ -77,6 +77,10 @@ status_t BatteryPropertiesRegistrar::getProperty(int id, struct BatteryProperty
     return healthd_get_property(id, val);
 }
 
+void BatteryPropertiesRegistrar::scheduleUpdate() {
+    healthd_battery_update();
+}
+
 status_t BatteryPropertiesRegistrar::dump(int fd, const Vector<String16>& /*args*/) {
     IPCThreadState* self = IPCThreadState::self();
     const int pid = self->getCallingPid();
diff --git a/healthd/BatteryPropertiesRegistrar.h b/healthd/BatteryPropertiesRegistrar.h
index 095f3d37c..14e914514 100644
--- a/healthd/BatteryPropertiesRegistrar.h
+++ b/healthd/BatteryPropertiesRegistrar.h
@@ -32,6 +32,7 @@ class BatteryPropertiesRegistrar : public BnBatteryPropertiesRegistrar,
 public:
     void publish(const sp<BatteryPropertiesRegistrar>& service);
     void notifyListeners(const struct BatteryProperties& props);
+    void scheduleUpdate();
 
 private:
     Mutex mRegistrationLock;