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-rw-r--r--portaudio/test/patest_unplug.c243
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diff --git a/portaudio/test/patest_unplug.c b/portaudio/test/patest_unplug.c
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+/** @file patest_unplug.c
+ @ingroup test_src
+ @brief Debug a crash involving unplugging a USB device.
+ @author Phil Burk http://www.softsynth.com
+*/
+/*
+ * $Id$
+ *
+ * This program uses the PortAudio Portable Audio Library.
+ * For more information see: http://www.portaudio.com
+ * Copyright (c) 1999-2000 Ross Bencina and Phil Burk
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files
+ * (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge,
+ * publish, distribute, sublicense, and/or sell copies of the Software,
+ * and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
+ * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * The text above constitutes the entire PortAudio license; however,
+ * the PortAudio community also makes the following non-binding requests:
+ *
+ * Any person wishing to distribute modifications to the Software is
+ * requested to send the modifications to the original developer so that
+ * they can be incorporated into the canonical version. It is also
+ * requested that these non-binding requests be included along with the
+ * license above.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <memory.h>
+#include <math.h>
+#include "portaudio.h"
+
+#define NUM_SECONDS (8)
+#define SAMPLE_RATE (44100)
+#ifndef M_PI
+#define M_PI (3.14159265)
+#endif
+#define TABLE_SIZE (200)
+#define FRAMES_PER_BUFFER (64)
+#define MAX_CHANNELS (8)
+
+typedef struct
+{
+ short sine[TABLE_SIZE];
+ int32_t phases[MAX_CHANNELS];
+ int32_t numChannels;
+ int32_t sampsToGo;
+}
+paTestData;
+
+
+static int inputCallback( const void *inputBuffer, void *outputBuffer,
+ unsigned long framesPerBuffer,
+ const PaStreamCallbackTimeInfo* timeInfo,
+ PaStreamCallbackFlags statusFlags,
+ void *userData )
+{
+ paTestData *data = (paTestData*)userData;
+ int finished = 0;
+ (void) inputBuffer; /* Prevent "unused variable" warnings. */
+ (void) outputBuffer; /* Prevent "unused variable" warnings. */
+
+ data->sampsToGo -= framesPerBuffer;
+ if (data->sampsToGo <= 0)
+ {
+ data->sampsToGo = 0;
+ finished = 1;
+ }
+ return finished;
+}
+
+static int outputCallback( const void *inputBuffer, void *outputBuffer,
+ unsigned long framesPerBuffer,
+ const PaStreamCallbackTimeInfo* timeInfo,
+ PaStreamCallbackFlags statusFlags,
+ void *userData )
+{
+ paTestData *data = (paTestData*)userData;
+ short *out = (short*)outputBuffer;
+ unsigned int i;
+ int finished = 0;
+ (void) inputBuffer; /* Prevent "unused variable" warnings. */
+
+ for( i=0; i<framesPerBuffer; i++ )
+ {
+ for (int channelIndex = 0; channelIndex < data->numChannels; channelIndex++)
+ {
+ int phase = data->phases[channelIndex];
+ *out++ = data->sine[phase];
+ phase += channelIndex + 2;
+ if( phase >= TABLE_SIZE ) phase -= TABLE_SIZE;
+ data->phases[channelIndex] = phase;
+ }
+ }
+ return finished;
+}
+
+/*******************************************************************/
+int main(int argc, char **args);
+int main(int argc, char **args)
+{
+ PaStreamParameters inputParameters;
+ PaStreamParameters outputParameters;
+ PaStream *inputStream;
+ PaStream *outputStream;
+ const PaDeviceInfo *deviceInfo;
+ PaError err;
+ paTestData data;
+ int i;
+ int totalSamps;
+ int inputDevice = -1;
+ int outputDevice = -1;
+
+ printf("Test unplugging a USB device.\n");
+
+ if( argc > 1 ) {
+ inputDevice = outputDevice = atoi( args[1] );
+ printf("Using device number %d.\n\n", inputDevice );
+ } else {
+ printf("Using default device.\n\n" );
+ }
+
+ memset(&data, 0, sizeof(data));
+
+ /* initialise sinusoidal wavetable */
+ for( i=0; i<TABLE_SIZE; i++ )
+ {
+ data.sine[i] = (short) (32767.0 * sin( ((double)i/(double)TABLE_SIZE) * M_PI * 2. ));
+ }
+ data.numChannels = 2;
+ data.sampsToGo = totalSamps = NUM_SECONDS * SAMPLE_RATE; /* Play for a few seconds. */
+
+
+ err = Pa_Initialize();
+ if( err != paNoError ) goto error;
+
+ if( inputDevice == -1 )
+ inputParameters.device = Pa_GetDefaultInputDevice(); /* default input device */
+ else
+ inputParameters.device = inputDevice ;
+
+ if (inputParameters.device == paNoDevice) {
+ fprintf(stderr,"Error: No default input device.\n");
+ goto error;
+ }
+
+ if( outputDevice == -1 )
+ outputParameters.device = Pa_GetDefaultOutputDevice(); /* default output device */
+ else
+ outputParameters.device = outputDevice ;
+
+ if (outputParameters.device == paNoDevice) {
+ fprintf(stderr,"Error: No default output device.\n");
+ goto error;
+ }
+
+ inputParameters.channelCount = 2;
+ inputParameters.sampleFormat = paInt16;
+ deviceInfo = Pa_GetDeviceInfo( inputParameters.device );
+ if( deviceInfo == NULL )
+ {
+ fprintf( stderr, "No matching input device.\n" );
+ goto error;
+ }
+ inputParameters.suggestedLatency = deviceInfo->defaultLowInputLatency;
+ inputParameters.hostApiSpecificStreamInfo = NULL;
+ err = Pa_OpenStream(
+ &inputStream,
+ &inputParameters,
+ NULL,
+ SAMPLE_RATE,
+ FRAMES_PER_BUFFER,
+ 0,
+ inputCallback,
+ &data );
+ if( err != paNoError ) goto error;
+
+ outputParameters.channelCount = 2;
+ outputParameters.sampleFormat = paInt16;
+ deviceInfo = Pa_GetDeviceInfo( outputParameters.device );
+ if( deviceInfo == NULL )
+ {
+ fprintf( stderr, "No matching output device.\n" );
+ goto error;
+ }
+ outputParameters.suggestedLatency = deviceInfo->defaultLowOutputLatency;
+ outputParameters.hostApiSpecificStreamInfo = NULL;
+ err = Pa_OpenStream(
+ &outputStream,
+ NULL,
+ &outputParameters,
+ SAMPLE_RATE,
+ FRAMES_PER_BUFFER,
+ (paClipOff | paDitherOff),
+ outputCallback,
+ &data );
+ if( err != paNoError ) goto error;
+
+ err = Pa_StartStream( inputStream );
+ if( err != paNoError ) goto error;
+ err = Pa_StartStream( outputStream );
+ if( err != paNoError ) goto error;
+
+ printf("When you hear sound, unplug the USB device.\n");
+ do
+ {
+ Pa_Sleep(500);
+ printf("Frames remaining = %d\n", data.sampsToGo);
+ printf("Pa_IsStreamActive(inputStream) = %d\n", Pa_IsStreamActive(inputStream));
+ printf("Pa_IsStreamActive(outputStream) = %d\n", Pa_IsStreamActive(outputStream));
+ } while( Pa_IsStreamActive(inputStream) && Pa_IsStreamActive(outputStream) );
+
+ err = Pa_CloseStream( inputStream );
+ if( err != paNoError ) goto error;
+ err = Pa_CloseStream( outputStream );
+ if( err != paNoError ) goto error;
+ Pa_Terminate();
+ return paNoError;
+error:
+ Pa_Terminate();
+ fprintf( stderr, "An error occurred while using the portaudio stream\n" );
+ fprintf( stderr, "Error number: %d\n", err );
+ fprintf( stderr, "Error message: %s\n", Pa_GetErrorText( err ) );
+ fprintf( stderr, "Host Error message: %s\n", Pa_GetLastHostErrorInfo()->errorText );
+ return err;
+}
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