Initial commit

include/fw/pool.h

@@ -0,0 +1,41 @@
+#pragma once
+
+#include <cstdint>
+#include <queue>
+
+template<typename T>
+class growing_object_pool {
+	std::queue<T*> m_objects;
+	uint32_t m_objects_count;
+	T* (*m_factory)();
+public:
+	explicit growing_object_pool(T* (*factory)(), uint32_t initialSize = 0) {
+		m_factory = factory;
+
+		m_objects_count = initialSize;
+		for (size_t i = 0; i < initialSize; i++) {
+			m_objects.push(m_factory());
+		}
+	}
+
+	uint32_t get_count() const {
+		return m_objects_count;
+	}
+
+	T* get() {
+		if (m_objects.empty()) {
+			m_objects.push(m_factory());
+			m_objects_count++;
+		}
+
+		auto result = m_objects.front();
+
+		m_objects.pop();
+
+		return result;
+	}
+
+	void put(T* obj) {
+		m_objects.push(obj);
+	}
+};

include/fw/singleton.h

@@ -0,0 +1,21 @@
+#pragma once
+
+template<typename T>
+class singleton {
+public:
+	static T& instance();
+
+	singleton(const singleton&) = delete;
+	singleton& operator= (singleton) = delete;
+
+protected:
+	struct token {};
+	singleton() = default;
+};
+
+#include <memory>
+template<typename T>
+T& singleton<T>::instance() {
+	static const std::unique_ptr<T> instance{ new T{token{}} };
+	return *instance;
+}