Asynchronous threads should execute in thread pools owned by parents

- Fixes #51

scwx-qt/source/scwx/qt/main/main_window.cpp

@@ -28,8 +28,9 @@
 #include <scwx/common/products.hpp>
 #include <scwx/common/vcp.hpp>
 #include <scwx/util/logger.hpp>
-#include <scwx/util/threads.hpp>
 
+#include <boost/asio/post.hpp>
+#include <boost/asio/thread_pool.hpp>
 #include <QDesktopServices>
 #include <QFileDialog>
 #include <QMessageBox>
@@ -134,6 +135,8 @@ public:
    void UpdateRadarSite();
    void UpdateVcp();
 
+   boost::asio::thread_pool threadPool_ {1u};
+
    MainWindow*           mainWindow_;
    QMapLibreGL::Settings settings_;
    map::MapProvider      mapProvider_;
@@ -429,7 +432,8 @@ void MainWindow::on_actionGitHubRepository_triggered()
 
 void MainWindow::on_actionCheckForUpdates_triggered()
 {
-   scwx::util::async(
+   boost::asio::post(
+      p->threadPool_,
       [this]()
       {
          if (!p->updateManager_->CheckForUpdates(main::kVersionString_))
@@ -544,7 +548,8 @@ void MainWindowImpl::AsyncSetup()
    // Check for updates
    if (generalSettings.update_notifications_enabled().GetValue())
    {
-      scwx::util::async(
+      boost::asio::post(
+         threadPool_,
          [this]() { updateManager_->CheckForUpdates(main::kVersionString_); });
    }
 }

scwx-qt/source/scwx/qt/manager/text_event_manager.cpp

@@ -3,12 +3,13 @@
 #include <scwx/awips/text_product_file.hpp>
 #include <scwx/provider/warnings_provider.hpp>
 #include <scwx/util/logger.hpp>
-#include <scwx/util/threads.hpp>
 
 #include <shared_mutex>
 #include <unordered_map>
 
+#include <boost/asio/post.hpp>
 #include <boost/asio/steady_timer.hpp>
+#include <boost/asio/thread_pool.hpp>
 
 namespace scwx
 {
@@ -28,13 +29,13 @@ class TextEventManager::Impl
 public:
    explicit Impl(TextEventManager* self) :
        self_ {self},
-       refreshTimer_ {util::io_context()},
+       refreshTimer_ {threadPool_},
        refreshMutex_ {},
        textEventMap_ {},
        textEventMutex_ {},
        warningsProvider_ {kDefaultWarningsProviderUrl}
    {
-      util::async(
+      boost::asio::post(threadPool_,
                         [this]()
                         {
                            main::Application::WaitForInitialization();
@@ -52,6 +53,8 @@ public:
    void HandleMessage(std::shared_ptr<awips::TextProductMessage> message);
    void Refresh();
 
+   boost::asio::thread_pool threadPool_ {1u};
+
    TextEventManager* self_;
 
    boost::asio::steady_timer refreshTimer_;
@@ -104,7 +107,7 @@ void TextEventManager::LoadFile(const std::string& filename)
 {
    logger_->debug("LoadFile: {}", filename);
 
-   util::async(
+   boost::asio::post(p->threadPool_,
                      [=, this]()
                      {
                         awips::TextProductFile file;

scwx-qt/source/scwx/qt/map/map_widget.cpp

@@ -13,13 +13,14 @@
 #include <scwx/qt/util/file.hpp>
 #include <scwx/qt/view/radar_product_view_factory.hpp>
 #include <scwx/util/logger.hpp>
-#include <scwx/util/threads.hpp>
 #include <scwx/util/time.hpp>
 
 #include <regex>
 
 #include <backends/imgui_impl_opengl3.h>
 #include <backends/imgui_impl_qt.hpp>
+#include <boost/asio/post.hpp>
+#include <boost/asio/thread_pool.hpp>
 #include <boost/uuid/random_generator.hpp>
 #include <fmt/format.h>
 #include <imgui.h>
@@ -123,6 +124,8 @@ public:
    common::Level2Product
    GetLevel2ProductOrDefault(const std::string& productName) const;
 
+   boost::asio::thread_pool threadPool_ {1u};
+
    boost::uuids::uuid uuid_;
 
    std::shared_ptr<MapContext> context_;
@@ -939,7 +942,8 @@ void MapWidgetImpl::RadarProductManagerConnect()
                }
 
                // Load file
-               scwx::util::async(
+               boost::asio::post(
+                  threadPool_,
                   [=, this]()
                   {
                      if (group == common::RadarProductGroup::Level2)
@@ -973,7 +977,7 @@ void MapWidgetImpl::RadarProductManagerDisconnect()
 void MapWidgetImpl::InitializeNewRadarProductView(
    const std::string& colorPalette)
 {
-   scwx::util::async(
+   boost::asio::post(threadPool_,
                      [=, this]()
                      {
                         auto radarProductView = context_->radar_product_view();