Merge branch 'master' of https://github.com/Starman0620/SDRPlusPlus; branch 'master' of https://github.com/AlexandreRouma/SDRPlusPlus

core/src/config.cpp

@@ -48,13 +48,19 @@ void ConfigManager::save(bool lock) {
 void ConfigManager::enableAutoSave() {
     if (!autoSaveEnabled) {
         autoSaveEnabled = true;
+        termFlag = false;
         autoSaveThread = std::thread(autoSaveWorker, this);
     }
 }
 
 void ConfigManager::disableAutoSave() {
     if (autoSaveEnabled) {
-        autoSaveEnabled = false;
+        {
+            std::lock_guard<std::mutex> lock(termMtx);
+            autoSaveEnabled = false;
+            termFlag = true;
+            termCond.notify_one();
+        }
         autoSaveThread.join();
     }
 }
@@ -80,6 +86,11 @@ void ConfigManager::autoSaveWorker(ConfigManager* _this) {
             _this->save(false);
         }
         _this->mtx.unlock();
-        std::this_thread::sleep_for(std::chrono::milliseconds(1000));
+
+        // Sleep but listen for wakeup call
+        {
+            std::unique_lock<std::mutex> lock(_this->termMtx);
+            _this->termCond.wait_for(lock, std::chrono::milliseconds(1000), [_this]() { return _this->termFlag; } );
+        }
     }
 }

core/src/config.h

@@ -3,6 +3,7 @@
 #include <thread>
 #include <string>
 #include <mutex>
+#include <condition_variable>
 
 using nlohmann::json;
 
@@ -29,4 +30,8 @@ private:
     std::thread autoSaveThread;
     std::mutex mtx;
 
+    std::mutex termMtx;
+    std::condition_variable termCond;
+    bool termFlag = false;
+
 };