dynamic_sensor: Add sensor manager init to sub-HAL 2.1.

Bug: 195964858
Test: Verified dynamic sensor manager is present in sensor list and that
 no SELinux violations occur on sc-v2-dev and master.

$ make -j28 && \
         vendor/google/tools/flashall -w -s 14281FDEE000A5 --disable_verity && \
         sleep 90 && adb root
.
.
.
$ adb shell sensor_test list | grep "sensor_test\|Type\|Dynamic"
sensor_test version 74
Type     Subtype  Name
32       0        Dynamic Sensor Manager
$ adb logcat -d | grep avc | grep sensor
$

Change-Id: Ib3da287e4f4118ad6b19498248e263f8c1662b3a

1 files changed, 13 insertions, 5 deletions

diff --git a/modules/sensors/dynamic_sensor/ConnectionDetector.cpp b/modules/sensors/dynamic_sensor/ConnectionDetector.cpp
index c51e9125..c009a707 100644
--- a/modules/sensors/dynamic_sensor/ConnectionDetector.cpp
+++ b/modules/sensors/dynamic_sensor/ConnectionDetector.cpp
@@ -57,8 +57,6 @@ SocketConnectionDetector::SocketConnectionDetector(BaseDynamicSensorDaemon *d, i
     std::ostringstream s;
     s << "socket:" << port;
     mDevice = s.str();
-
-    run("ddad_socket");
 }
 
 SocketConnectionDetector::~SocketConnectionDetector() {
@@ -67,6 +65,12 @@ SocketConnectionDetector::~SocketConnectionDetector() {
     }
 }
 
+void SocketConnectionDetector::Init() {
+    // run adds a strong reference to this object, so it can't be invoked from
+    // the constructor.
+    run("ddad_socket");
+}
+
 int SocketConnectionDetector::waitForConnection() {
     return ::accept(mListenFd, nullptr, nullptr);
 }
@@ -124,9 +128,6 @@ FileConnectionDetector::FileConnectionDetector (
         ALOGE("Cannot setup watch on dir %s", path.c_str());
         return;
     }
-
-    // mLooper != null && mInotifyFd added to looper
-    run("ddad_file");
 }
 
 FileConnectionDetector::~FileConnectionDetector() {
@@ -138,6 +139,13 @@ FileConnectionDetector::~FileConnectionDetector() {
     }
 }
 
+void FileConnectionDetector::Init() {
+    // mLooper != null && mInotifyFd added to looper
+    // run adds a strong reference to this object, so it can't be invoked from
+    // the constructor.
+    run("ddad_file");
+}
+
 bool FileConnectionDetector::matches(const std::string &name) const {
     return std::regex_match(name, mRegex);
 }