Fixed tests and improve multithread sync

lib/concurrent/executor.cpp

@@ -64,7 +64,7 @@ void PIThreadPoolExecutor::execute(const std::function<void()> &runnable) {
 }
 
 
-volatile bool PIThreadPoolExecutor::isShutdown() const {
+bool PIThreadPoolExecutor::isShutdown() const {
 	return isShutdown_;
 }
 

lib/concurrent/test/ConditionVariableIntegrationTest.cpp

@@ -160,7 +160,7 @@ TEST_F(ConditionVariable, DISABLED_waitFor_is_block_before_timeout) {
 }
 
 TEST_F(ConditionVariable, waitFor_is_unblock_when_timeout) {
-    volatile bool isUnblock = false;
+    std::atomic_bool isUnblock(false);
     createThread([&](){
         m.lock();
         variable->waitFor(m, WAIT_THREAD_TIME_MS);

lib/concurrent/test/testutil.h

@@ -2,6 +2,7 @@
 #define AWRCANFLASHER_TESTUTIL_H
 
 #include "pithread.h"
+#include <atomic>
 
 /**
  * Minimum wait thread start, switch context or another interthread communication action time. Increase it if tests
@@ -16,10 +17,12 @@ PIOBJECT(TestUtil)
 public:
     double threadStartTime;
     PIThread* thread = new PIThread();
-    volatile bool isRunning = false;
+    std::atomic_bool isRunning;
     std::function<void()> adapterFunctionDefault;
 
-    bool createThread(const std::function<void()>&  fun = nullptr, PIThread* thread_ = nullptr) {
+	TestUtil() : isRunning(false) {}
+
+	bool createThread(const std::function<void()>&  fun = nullptr, PIThread* thread_ = nullptr) {
     	std::function<void()> actualFun = fun == nullptr ? adapterFunctionDefault : fun;
         if (thread_ == nullptr) thread_ = thread;
         thread_->startOnce([=](void*){