init

thread_pool.cpp

@@ -0,0 +1,47 @@
+#include "thread_pool.hpp"
+
+#include <optional>
+
+#include "task.hpp"
+
+namespace build_system {
+
+void ThreadPool::addTarget(Task&& task, size_t id, 
+                           const std::vector<size_t>& dependences) {
+  size_t new_id = dependency_manager_.add(id, dependences);
+  task_queue_.addIdentTask({std::move(task), new_id});
+}
+
+void ThreadPool::start() {
+  threads_.reserve(num_threads_);
+  for (size_t i = 0; i < num_threads_; ++i) {
+    threads_.emplace_back([this]() {
+      while (true) {
+        auto may_be_task = task_queue_.getIdentTask();
+        if (may_be_task == std::nullopt) {
+          break;
+        }
+
+        dependency_manager_.wait(may_be_task.value().second);
+
+        try {
+          may_be_task.value().first();
+        } catch (...) {
+        }
+
+        dependency_manager_.done(may_be_task.value().second);
+      }
+    });
+  }
+}
+
+void ThreadPool::wait() {
+  task_queue_.close();
+  dependency_manager_.waitAll();
+
+  for (auto& thread : threads_) {
+    thread.join();
+  }
+}
+
+}; // namespace build_system