// Start real-time playback.
int poly_start()
{
if(poly_playback == 1)
{
DEBUG_MSG("called poly_start() but playback was in progress");
return 0;
}
poly_playback = 1;
int status = pthread_create(&poly_thread, NULL, poly_gen_kernel, NULL);
switch(status)
{
case 0:
break;
case EAGAIN:
DEBUG_MSG("insufficient resources to create another thread(EAGAIN)");
poly_stop();
return 1;
case EINVAL:
DEBUG_MSG("invalid thread attributes(EINVAL)");
poly_stop();
return 1;
case EPERM:
DEBUG_MSG("insufficient privileges to create thread(EPERM)");
poly_stop();
return 1;
default:
DEBUG_MSG("unknown pthread_create error");
poly_stop();
return 1;
}
return 0;
}
// De-initialize the libPOLY environment.
void poly_shutdown()
{
if(poly_playback == 1)
{
poly_stop();
}
if(poly_card != NULL)
{
ao_close(poly_card);
poly_card = NULL;
}
if(poly_format != NULL)
{
free(poly_format);
poly_format = NULL;
}
if(poly_ao_init == 1)
{
ao_shutdown();
}
if(poly_generators != NULL)
{
free(poly_generators);
poly_generators = NULL;
}
return;
}
// De-initialize the libPOLY environment.
void poly_shutdown()
{
if(poly_playback == 1)
{
poly_stop();
}
if(poly_generators != NULL)
{
free(poly_generators);
poly_generators = NULL;
}
return;
}