add new API for retrieving port flags from backend

2 files changed, 12 insertions, 1 deletions

diff --git a/libs/backends/portaudio/portaudio_backend.cc b/libs/backends/portaudio/portaudio_backend.cc
index 01753803c9..398347b8db 100644
--- a/libs/backends/portaudio/portaudio_backend.cc
+++ b/libs/backends/portaudio/portaudio_backend.cc
@@ -1223,11 +1223,21 @@ PortAudioBackend::get_port_name (PortEngine::PortHandle port) const
 {
 	if (!valid_port (port)) {
 		DEBUG_PORTS("get_port_name: Invalid Port(s)\n");
-		return std::string ();
+		return PortFlags (0);
 	}
 	return static_cast<PamPort*>(port)->name ();
 }
 
+PortFlags
+PortAudioBackend::get_port_flags (PortEngine::PortHandle port) const
+{
+	if (!valid_port (port)) {
+		DEBUG_PORTS("get_port_flags: Invalid Port(s)\n");
+		return std::string ();
+	}
+	return static_cast<PamPort*>(port)->flags ();
+}
+
 int
 PortAudioBackend::get_port_property (PortHandle port,
                                      const std::string& key,
diff --git a/libs/backends/portaudio/portaudio_backend.h b/libs/backends/portaudio/portaudio_backend.h
index bc493101fc..da16d826c4 100644
--- a/libs/backends/portaudio/portaudio_backend.h
+++ b/libs/backends/portaudio/portaudio_backend.h
@@ -255,6 +255,7 @@ class PortAudioBackend : public AudioBackend {
 
 		int         set_port_name (PortHandle, const std::string&);
 		std::string get_port_name (PortHandle) const;
+		PortFlags get_port_flags (PortHandle) const;
 		PortHandle  get_port_by_name (const std::string&) const;
 		int get_port_property (PortHandle, const std::string& key, std::string& value, std::string& type) const;
 		int set_port_property (PortHandle, const std::string& key, const std::string& value, const std::string& type);