Made use of thread pool in Directories instead of spawning threads, and replaced initialize_thread with thread_pool in language client"

src/directories.cpp

@@ -489,7 +489,7 @@ Directories::Directories() : Gtk::ListViewText(1) {
 }
 
 Directories::~Directories() {
-  dispatcher.disconnect();
+  thread_pool.shutdown(true);
 }
 
 void Directories::open(const boost::filesystem::path &dir_path) {
@@ -795,7 +795,7 @@ void Directories::colorize_path(boost::filesystem::path dir_path_, bool include_
 
   if(it != directories.end() && it->second.repository) {
     auto repository = it->second.repository;
-    std::thread git_status_thread([this, dir_path, repository, include_parent_paths] {
+    thread_pool.push([this, dir_path, repository, include_parent_paths] {
       Git::Repository::Status status;
       try {
         status = repository->get_status();
@@ -868,6 +868,5 @@ void Directories::colorize_path(boost::filesystem::path dir_path_, bool include_
         } while(it != directories.end());
       });
     });
-    git_status_thread.detach();
   }
 }

src/directories.hpp

@@ -5,7 +5,6 @@
 #include <atomic>
 #include <gtkmm.h>
 #include <string>
-#include <thread>
 #include <unordered_map>
 #include <unordered_set>
 #include <vector>
@@ -79,6 +78,7 @@ private:
 
   std::unordered_map<std::string, DirectoryData> directories;
 
+  Glib::ThreadPool thread_pool;
   Dispatcher dispatcher;
 
   Gtk::Menu menu;

src/project.hpp

@@ -82,8 +82,6 @@ namespace Project {
 
   class LLDB : public virtual Base {
   public:
-    ~LLDB() override { dispatcher.disconnect(); }
-
 #ifdef JUCI_ENABLE_DEBUG
     std::pair<std::string, std::string> debug_get_run_arguments() override;
     Project::DebugOptions *debug_get_options() override;

src/source_language_protocol.cpp

@@ -384,7 +384,7 @@ void Source::LanguageProtocolView::initialize() {
     update_status_state(this);
 
   set_editable(false);
-  initialize_thread = std::thread([this] {
+  thread_pool.push([this] {
     auto capabilities = client->initialize(this);
 
     dispatcher.post([this, capabilities] {
@@ -419,9 +419,6 @@ void Source::LanguageProtocolView::close() {
   autocomplete_delayed_show_arguments_connection.disconnect();
   update_type_coverage_connection.disconnect();
 
-  if(initialize_thread.joinable())
-    initialize_thread.join();
-
   if(autocomplete) {
     autocomplete->state = Autocomplete::State::idle;
     if(autocomplete->thread.joinable())

src/source_language_protocol.hpp

@@ -182,7 +182,6 @@ namespace Source {
 
     size_t document_version = 1;
 
-    std::thread initialize_thread;
     Dispatcher dispatcher;
     Glib::ThreadPool thread_pool;