impr: Various code cleanup

lib/libimhex/source/api/task.cpp

@@ -19,6 +19,7 @@ namespace hex {
         std::mutex s_deferredCallsMutex, s_tasksFinishedMutex;
 
         std::list<std::shared_ptr<Task>> s_tasks, s_taskQueue;
+        std::list<Timer> s_timers;
         std::list<std::function<void()>> s_deferredCalls;
         std::list<std::function<void()>> s_tasksFinishedCallbacks;
 
@@ -300,12 +301,17 @@ namespace hex {
                 call();
             s_tasksFinishedCallbacks.clear();
         }
+
     }
 
     std::list<std::shared_ptr<Task>> &TaskManager::getRunningTasks() {
         return s_tasks;
     }
 
+    std::list<Timer> &TaskManager::getTimers() {
+        return s_timers;
+    }
+
     size_t TaskManager::getRunningTaskCount() {
         std::unique_lock lock(s_queueMutex);
 
@@ -336,6 +342,12 @@ namespace hex {
             call();
 
         s_deferredCalls.clear();
+
+        for (const auto &timer : s_timers) {
+            if (timer.elapseTime >= std::chrono::steady_clock::now()) {
+                timer.callback();
+            }
+        }
     }
 
     void TaskManager::runWhenTasksFinished(const std::function<void()> &function) {
@@ -344,4 +356,8 @@ namespace hex {
         s_tasksFinishedCallbacks.push_back(function);
     }
 
+    void TaskManager::doAfter(std::chrono::duration<i64> duration, const std::function<void()> &function) {
+        s_timers.push_back({ std::chrono::steady_clock::now() + duration, function });
+    }
+
 }