#include <Xm/Xm.h>
#include <Xm/PushB.h>
#include <sys/types.h>
#include <sys/prctl.h>
#include <audio.h>
#include <signal.h>
#include <stdio.h>

int	audio_pid;

void	owari();
void	do_audio();

main(int argc, char **argv)
{
	Widget      toplevel, button;

	audio_pid = sproc( do_audio, PR_SALL );
	if (audio_pid == -1) exit(-1);

	toplevel = XtInitialize( argv[0], "", NULL, 0, &argc, argv );
	button = XtCreateManagedWidget( "  Stop Audio  ", xmPushButtonWidgetClass, toplevel, NULL, 0 );
	XtAddCallback( button, XmNactivateCallback, owari, NULL );
	XtRealizeWidget(toplevel);
	XtMainLoop();
}

void do_audio()
{
	ALconfig	config;
	ALport		input_port, output_port;
	short		*buff[48000];
	int		i;

	config = ALnewconfig();
	ALsetqueuesize( config, 48000 );
	input_port = ALopenport( "input", "r", config );
	output_port = ALopenport( "output", "w", config );
	if (input_port == NULL || output_port == NULL) exit(-1);

	while (1)
	{
		ALreadsamps( input_port, buff, 256 );
		for(i=0;i<256;i++)
			ALwritesamps( output_port, buff, 1 );
	}
}

void owari(Widget w, caddr_t d1, caddr_t d2)
{
	kill(audio_pid, SIGKILL);
	exit(0); 
}