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Diffstat (limited to 'gr-audio-portaudio/src/audio_portaudio_sink.cc')
-rw-r--r--gr-audio-portaudio/src/audio_portaudio_sink.cc5
1 files changed, 4 insertions, 1 deletions
diff --git a/gr-audio-portaudio/src/audio_portaudio_sink.cc b/gr-audio-portaudio/src/audio_portaudio_sink.cc
index 9a3baf40e..64e64ccf4 100644
--- a/gr-audio-portaudio/src/audio_portaudio_sink.cc
+++ b/gr-audio-portaudio/src/audio_portaudio_sink.cc
@@ -102,7 +102,10 @@ portaudio_sink_callback (const void *inputBuffer,
else { // underrun
self->d_nunderuns++;
- ::write(2, "aU", 2); // FIXME change to non-blocking call
+ ssize_t r = ::write(2, "aU", 2); // FIXME change to non-blocking call
+ if(r == -1) {
+ perror("audio_portaudio_source::portaudio_source_callback write error to stderr.");
+ }
// FIXME we should transfer what we've got and pad the rest
memset(outputBuffer, 0, nreqd_samples * sizeof(sample_t));