Dummy backend, revise small things

diff --git a/libs/backends/dummy/dummy_audiobackend.cc b/libs/backends/dummy/dummy_audiobackend.cc
index bc2e09a66555dc22509e930c57a3e05789cf15f1..be157f12f0b0f070bf79431fc2c0b308fcb70735 100644 (file)
--- a/libs/backends/dummy/dummy_audiobackend.cc
+++ b/libs/backends/dummy/dummy_audiobackend.cc
@@ -274,13 +274,13 @@ DummyAudioBackend::set_midi_option (const std::string& opt)
        else {
                _n_midi_inputs = _n_midi_outputs = 0;
        }
-       return -1;
+       return 0;
 }
 
 std::string
 DummyAudioBackend::midi_option () const
 {
-       return "";
+       return ""; // TODO
 }
 
 /* State Control */
@@ -374,7 +374,7 @@ DummyAudioBackend::raw_buffer_size (DataType t)
 {
        switch (t) {
                case DataType::AUDIO:
-                       return _max_buffer_size * sizeof(Sample);
+                       return _samples_per_period * sizeof(Sample);
                case DataType::MIDI:
                        return _max_buffer_size; // XXX not really limited
        }
@@ -424,8 +424,10 @@ DummyAudioBackend::create_process_thread (boost::function<void()> func)
 
        if (pthread_create (&thread_id, &attr, dummy_process_thread, td)) {
                PBD::error << _("AudioEngine: cannot create process thread.") << endmsg;
+               pthread_attr_destroy (&attr);
                return -1;
        }
+       pthread_attr_destroy (&attr);
 
        _threads.push_back (thread_id);
        return 0;