Add shared ptr

[trackerpp.git] / src / Engine.cpp

diff --git a/src/Engine.cpp b/src/Engine.cpp
index 82fed4a..be5ceda 100644 (file)
--- a/src/Engine.cpp
+++ b/src/Engine.cpp
@@ -8,36 +8,38 @@ using namespace suanzi;
 const static std::string TAG = "Engine";
 
 static std::mutex g_mutex;
-static Engine* g_instance = nullptr;
+static EngineWPtr g_instance;
 
-Engine::Engine()
-{
-    detector = new Detector();
-}
 
-Engine* Engine::create()
+EnginePtr Engine::create()
 {
     LOG_DEBUG(TAG, "create");
     std::lock_guard<std::mutex> lock(g_mutex);
-    if (g_instance)
-        return g_instance;
-    
-    Engine* instance (new Engine());
+    if (g_instance.lock()){
+        LOG_ERROR(TAG, "already exists");
+        return EnginePtr(); // nullptr
+    }
+    EnginePtr instance (new Engine());
     g_instance = instance;
-    return g_instance;
+    return instance;
 }
 
-void Engine::destroy()
+Engine::Engine()
 {
-    delete g_instance;
+    detector = std::make_shared<Detector>();
+    MetricsPtr m (new Metrics("model.pkl"));
+    multiTracker = std::make_shared<MultiTracker>(m);
 }
 
 Engine::~Engine()
 {    
-    delete detector;
-//    delete tracker;
 }
 
+void Engine::destroy()
+{
+}
+
+
 void Engine::setVideoSrc(VideoSrcType type, const std::string& url)
 {
     videoSrc = url;