Removing warnings in portaudio source/sink.

[debian/gnuradio] / gr-audio-portaudio / src / audio_portaudio_source.cc

diff --git a/gr-audio-portaudio/src/audio_portaudio_source.cc b/gr-audio-portaudio/src/audio_portaudio_source.cc
index 23801a8bf7e873602254797b1082c5683b5ff238..e508fda22f6d1aa8f708459465654b92439ac6e5 100644 (file)
--- a/gr-audio-portaudio/src/audio_portaudio_source.cc
+++ b/gr-audio-portaudio/src/audio_portaudio_source.cc
@@ -105,7 +105,10 @@ portaudio_source_callback (const void *inputBuffer,
 
   else {                       // overrun
     self->d_noverruns++;
-    ::write(2, "aO", 2);       // FIXME change to non-blocking call
+    ssize_t r = ::write(2, "aO", 2);   // FIXME change to non-blocking call
+    if(r == -1) {
+      perror("audio_portaudio_source::portaudio_source_callback write error to stderr.");
+    }
 
     self->d_ringbuffer_ready = false;
     self->d_ringbuffer_cond.notify_one();  // Tell the sink to get going!