initial commit before ownership transfer

code/toni/TFRingBuffer.h

@@ -0,0 +1,52 @@
+#ifndef TFObjectPool_TFRingBuffer_h
+#define TFObjectPool_TFRingBuffer_h
+
+#include <atomic>
+#include <cstddef>
+
+template <typename T> class TFRingBuffer {
+	T *m_buffer;
+	std::atomic<size_t> m_head;
+	std::atomic<size_t> m_tail;
+	const size_t m_size;
+
+	size_t next(size_t current) {
+		return (current + 1) % m_size;
+	}
+
+public:
+
+	TFRingBuffer(const size_t size) : m_size(size), m_head(0), m_tail(0) {
+		m_buffer = new T[size];
+	}
+
+	virtual ~TFRingBuffer() {
+		delete[] m_buffer;
+	}
+
+	bool push(const T &object) {
+		size_t head = m_head.load(std::memory_order_relaxed);
+		size_t nextHead = next(head);
+		if (nextHead == m_tail.load(std::memory_order_acquire)) {
+			return false;
+		}
+		m_buffer[head] = object;
+		m_head.store(nextHead, std::memory_order_release);
+
+		return true;
+	}
+
+	bool pop(T &object) {
+		size_t tail = m_tail.load(std::memory_order_relaxed);
+		if (tail == m_head.load(std::memory_order_acquire)) {
+			return false;
+		}
+
+		object = m_buffer[tail];
+		m_tail.store(next(tail), std::memory_order_release);
+		return true;
+	}
+};
+
+
+#endif