robert@269: /*
robert@269:  * default_main.cpp
robert@269:  *
robert@269:  *  Created on: Oct 24, 2014
robert@269:  *      Author: parallels
robert@269:  */
robert@269: //#include <unistd.h>
robert@269: #include <iostream>
robert@269: #include <cstdlib>
robert@269: #include <libgen.h>
robert@269: #include <signal.h>
robert@269: #include <getopt.h>
robert@269: #include "../include/BeagleRT.h"
robert@269: 
robert@269: using namespace std;
robert@269: 
robert@269: int returnCode = 0;
robert@269: 
robert@269: // Handle Ctrl-C by requesting that the audio rendering stop
robert@269: void interrupt_handler(int var)
robert@269: {
robert@269: 	gShouldStop = true;
robert@269: 	// allows other process to monitor why beagleRT has exited
robert@269: 	// var=15, returnCode = 143 if terminated with SIGTERM
robert@269: 	returnCode = var + 128;
robert@269: }
robert@269: 
robert@269: // Print usage information
robert@269: void usage(const char * processName)
robert@269: {
robert@269: 	cerr << "Usage: " << processName << " [options]" << endl;
robert@269: 
robert@269: 	BeagleRT_usage();
robert@269: 
robert@269: 	cerr << "   --help [-h]:                Print this menu\n";
robert@269: }
robert@269: 
robert@269: int main(int argc, char *argv[])
robert@269: {
robert@269: 	BeagleRTInitSettings settings;	// Standard audio settings
robert@269: 
robert@269: 	struct option customOptions[] =
robert@269: 	{
robert@269: 		{"help", 0, NULL, 'h'},
robert@269: 		{NULL, 0, NULL, 0}
robert@269: 	};
robert@269: 
robert@269: 	// Set default settings
robert@269: 	BeagleRT_defaultSettings(&settings);
robert@269: 
robert@269: 	// Parse command-line arguments
robert@269: 	while (1) {
robert@269: 		int c;
robert@269: 		if ((c = BeagleRT_getopt_long(argc, argv, "h", customOptions, &settings)) < 0)
robert@269: 				break;
robert@269: 		switch (c) {
robert@269: 		case 'h':
robert@269: 				usage(basename(argv[0]));
robert@269: 				exit(0);
robert@269: 		case '?':
robert@269: 		default:
robert@269: 				usage(basename(argv[0]));
robert@269: 				exit(1);
robert@269: 		}
robert@269: 	}
robert@269: 
robert@269: 	// Initialise the PRU audio device
robert@269: 	if(BeagleRT_initAudio(&settings, 0) != 0) {
robert@269: 		cout << "Error: unable to initialise audio" << endl;
robert@269: 		return -1;
robert@269: 	}
robert@269: 
robert@269: 	// Start the audio device running
robert@269: 	if(BeagleRT_startAudio()) {
robert@269: 		cout << "Error: unable to start real-time audio" << endl;
robert@269: 		return -1;
robert@269: 	}
robert@269: 
robert@269: 	// Set up interrupt handler to catch Control-C and SIGTERM
robert@269: 	signal(SIGINT, interrupt_handler);
robert@269: 	signal(SIGTERM, interrupt_handler);
robert@269: 
robert@269: 	// Run until told to stop
robert@269: 	while(!gShouldStop) {
robert@269: 		usleep(100000);
robert@269: 	}
robert@269: 
robert@269: 	// Stop the audio device
robert@269: 	BeagleRT_stopAudio();
robert@269: 
robert@269: 	// Clean up any resources allocated for audio
robert@269: 	BeagleRT_cleanupAudio();
robert@269: 
robert@269: 	// All done!
robert@269: 	return returnCode;
robert@269: }