Add bluetooth module

Can't really do anything yet, but finds the bluetooth adapter
and registers an agent to make it pairable.

1 files changed, 42 insertions, 0 deletions

diff --git a/src/unique_pipe.hh b/src/unique_pipe.hh
new file mode 100644
index 0000000..c133018
--- /dev/null
+++ b/src/unique_pipe.hh
@@ -0,0 +1,42 @@
+#ifndef UNIQUE_PIPE_HH
+#define UNIQUE_PIPE_HH
+
+#include "unique_fd.hh"
+
+#include <cstddef>
+
+class unique_pipe {
+ public:
+  unique_pipe();
+  unique_pipe(unique_pipe&& fd);
+  unique_pipe(unique_pipe const&) = delete;
+  unique_pipe& operator=(unique_pipe const&) = delete;
+
+  ~unique_pipe() = default;
+
+  unique_pipe& operator=(unique_pipe&& fd);
+
+  [[nodiscard]]
+  int reader() const {
+    return fd_[0].get();
+  }
+  [[nodiscard]]
+  int writer() const {
+    return fd_[1].get();
+  }
+
+  [[nodiscard]]
+  explicit operator bool() const {
+    return fd_[0] || fd_[1];
+  }
+
+  void reset();
+
+  unique_fd release_reader();
+  unique_fd release_writer();
+
+ private:
+  unique_fd fd_[2];
+};
+
+#endif  // UNIQUE_PIPE_HH