1 files changed, 36 insertions, 0 deletions
diff --git a/src/modules/serial_echo/unique_file.hpp b/src/modules/serial_echo/unique_file.hpp
new file mode 100644
index 000000000..0735f7389
--- /dev/null
+++ b/src/modules/serial_echo/unique_file.hpp
@@ -0,0 +1,36 @@
+#pragma once
+
+#include <unistd.h>
+
+class unique_file {
+private:
+	int fd;
+
+public:
+	inline
+	unique_file() : fd(-1) {}
+
+	inline
+	unique_file(int fd) : fd(fd) {}
+
+	inline
+	unique_file(unique_file && other) : fd(other.fd) {
+		other.fd = -1;
+	}
+
+	inline
+	~unique_file() {
+		if (fd > -1) close(fd);
+	}
+
+	inline
+	int get() { return fd; }
+
+	friend inline std::size_t
+	read(unique_file & uf, void * buf, size_t buf_size)
+	{ return ::read(uf.fd, buf, buf_size); }
+
+	friend inline std::size_t
+	write(unique_file & uf, const void * buf, size_t buf_size)
+	{ return ::write(uf.fd, buf, buf_size); }
+};