chore(parallel): update BS::threadpool library v5

CHANGELOG.md

@@ -20,6 +20,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Help Center: Access documentation in your system's web browser. Previously, the documentation was opened in the embedded Help browser.
 - CA certificate store update.
 - fmt library dependency updated.
+- BS::threadpool library dependency updated.
 - Advanced terminal updated (common for all platforms without GUI, auto completion, search history).
 
 ## 1.10.0 (2024-12-14)

modules/parallel/builtin/cpp/Gateway.cpp

@@ -140,9 +140,13 @@ static bool
 finishParallelModule(Nelson::Evaluator* eval)
 {
     if (BackgroundPoolObject::isInitialized()) {
-        BackgroundPoolObject::getInstance()->resetThreadPool();
+        size_t nbQueued = BackgroundPoolObject::getInstance()->getTasksQueued();
+        //BackgroundPoolObject::getInstance()->resetThreadPool();
+        if (nbQueued > 0) {
+            std::this_thread::sleep_for(std::chrono::seconds(5));
+        }
+        return true;
     }
-    return true;
 }
 //=============================================================================
 NLSGATEWAYFUNC(gateway)

modules/parallel/src/cpp/BackgroundPoolObject.cpp

@@ -76,7 +76,8 @@ BackgroundPoolObject::getNumberOfThreads()
 BackgroundPoolObject::BackgroundPoolObject()
     : HandleGenericObject(NLS_HANDLE_BACKGROUNDPOOL_CATEGORY_STR, this, false)
 {
-    threadPool = new BS::thread_pool(NelsonConfiguration::getInstance()->getMaxNumCompThreads());
+    threadPool
+        = new BS::pause_thread_pool(NelsonConfiguration::getInstance()->getMaxNumCompThreads());
     propertiesNames = { L"NumWorkers", L"Busy", L"FevalQueue" };
 }
 //=============================================================================
@@ -154,8 +155,8 @@ BackgroundPoolObject::feval(FunctionDef* fptr, int nLhs, const ArrayOfVector& ar
     } catch (std::bad_alloc&) {
         Error(ERROR_MEMORY_ALLOCATION);
     }
-
-    threadPool->push_task(&FevalFutureObject::evaluateFunction, retFuture, fptr, nLhs, argIn, true);
+    auto future = threadPool->submit_task(
+        [retFuture, fptr, nLhs, argIn]() { retFuture->evaluateFunction(fptr, nLhs, argIn, true); });
     FevalQueueObject::getInstance()->add(retFuture);
     ArrayOf result = ArrayOf::handleConstructor(retFuture);
     nelson_handle* qp = (nelson_handle*)(result.getDataPointer());