init

dependency_manager.hpp

@@ -0,0 +1,29 @@
+#pragma once
+
+#include <atomic>
+#include <cstddef>
+#include <deque>
+#include <unordered_map>
+#include <vector>
+
+namespace build_system {
+
+class DependencyManager {
+public:
+  DependencyManager() {}
+
+  void waitAll(); // async
+
+  void wait(size_t id); // async
+
+  size_t add(size_t id, const std::vector<size_t>& dependences); // sync
+
+  void done(size_t id); // async
+
+private:
+  std::deque<std::atomic<size_t>> dependency_counters_;
+  std::vector<std::vector<size_t>> tasks_consequences_;
+  std::unordered_map<size_t, size_t> to_new_id;
+};
+
+}; // namespace build_system