Use unique pointer for global device manager

Changed from raw pointer to a unique_ptr, also renamed from finder to
device_manager

src/logid/DeviceManager.h

@@ -44,7 +44,7 @@ namespace logid
         std::map<std::string, std::shared_ptr<Receiver>> _receivers;
     };
 
-    extern DeviceManager* finder;
+    extern std::unique_ptr<DeviceManager> device_manager;
 }
 
 #endif //LOGID_DEVICEMANAGER_H

src/logid/logid.cpp

@@ -39,10 +39,10 @@ std::string config_file = DEFAULT_CONFIG_FILE;
 
 LogLevel logid::global_loglevel = INFO;
 // Configuration* logid::global_config;
-DeviceManager* logid::finder;
+std::unique_ptr<DeviceManager> logid::device_manager;
 
 bool logid::kill_logid = false;
-std::mutex logid::finder_reloading;
+std::mutex logid::device_manager_reload;
 
 enum class Option
 {
@@ -172,12 +172,12 @@ int main(int argc, char** argv)
     */
     
     // Scan devices, create listeners, handlers, etc.
-    finder = new DeviceManager();
+    device_manager = std::make_unique<DeviceManager>();
 
     while(!kill_logid) {
-        finder_reloading.lock();
+        device_manager_reload.lock();
-        finder_reloading.unlock();
+        device_manager_reload.unlock();
-        finder->run();
+        device_manager->run();
     }
 
     return EXIT_SUCCESS;

src/logid/logid.h

@@ -26,7 +26,7 @@ namespace logid
     // void reload();
 
     extern bool kill_logid;
-    extern std::mutex finder_reloading;
+    extern std::mutex device_manager_reload;
 }
 
 #endif //LOGID_LOGID_H