SensorManager doesn't need to ping the remote service

Change-Id: I3c964a497e2fcc9106fe469e71a7d61f0d089653
Bug: 322228259
Test: presubmit, and verified performance with stack samples
diff --git a/libs/sensor/Android.bp b/libs/sensor/Android.bp
index d992aa5..cc92bc3 100644
--- a/libs/sensor/Android.bp
+++ b/libs/sensor/Android.bp
@@ -21,6 +21,18 @@
     default_applicable_licenses: ["frameworks_native_license"],
 }
 
+aconfig_declarations {
+    name: "libsensor_flags",
+    package: "com.android.hardware.libsensor.flags",
+    srcs: ["libsensor_flags.aconfig"],
+}
+
+cc_aconfig_library {
+    name: "libsensor_flags_c_lib",
+    host_supported: true,
+    aconfig_declarations: "libsensor_flags",
+}
+
 cc_library {
     name: "libsensor",
 
@@ -52,6 +64,10 @@
         "android.companion.virtual.virtualdevice_aidl-cpp",
     ],
 
+    static_libs: [
+        "libsensor_flags_c_lib",
+    ],
+
     export_include_dirs: ["include"],
 
     export_shared_lib_headers: [
diff --git a/libs/sensor/SensorManager.cpp b/libs/sensor/SensorManager.cpp
index b82a79f..9411e20 100644
--- a/libs/sensor/SensorManager.cpp
+++ b/libs/sensor/SensorManager.cpp
@@ -37,6 +37,8 @@
 #include <sensor/Sensor.h>
 #include <sensor/SensorEventQueue.h>
 
+#include <com_android_hardware_libsensor_flags.h>
+
 // ----------------------------------------------------------------------------
 namespace android {
 // ----------------------------------------------------------------------------
@@ -192,6 +194,9 @@
 }
 
 status_t SensorManager::assertStateLocked() {
+#if COM_ANDROID_HARDWARE_LIBSENSOR_FLAGS(SENSORMANAGER_PING_BINDER)
+    if (mSensorServer == nullptr) {
+#else
     bool initSensorManager = false;
     if (mSensorServer == nullptr) {
         initSensorManager = true;
@@ -203,6 +208,7 @@
         }
     }
     if (initSensorManager) {
+#endif
         waitForSensorService(&mSensorServer);
         LOG_ALWAYS_FATAL_IF(mSensorServer == nullptr, "getService(SensorService) NULL");
 
diff --git a/libs/sensor/libsensor_flags.aconfig b/libs/sensor/libsensor_flags.aconfig
new file mode 100644
index 0000000..a8b38e9
--- /dev/null
+++ b/libs/sensor/libsensor_flags.aconfig
@@ -0,0 +1,9 @@
+package: "com.android.hardware.libsensor.flags"
+
+flag {
+  name: "sensormanager_ping_binder"
+  namespace: "libsensors"
+  description: "Whether to pingBinder on SensorManager init"
+  bug: "322228259"
+  is_fixed_read_only: true
+}
\ No newline at end of file