int main()

in bpf/hbm.c [451:514]

• 61 lines of code
• 18 McCabe index (conditional complexity)

int main(int argc, char **argv)
{
	char *prog = "hbm_out_kern.o";
	int  k;
	int cg_id = 1;
	char *optstring = "iodln:r:st:wh";
	struct option loptions[] = {
		{"no_cn", 0, NULL, 1},
		{"edt", 0, NULL, 2},
		{NULL, 0, NULL, 0}
	};

	while ((k = getopt_long(argc, argv, optstring, loptions, NULL)) != -1) {
		switch (k) {
		case 1:
			no_cn_flag = true;
			break;
		case 2:
			prog = "hbm_edt_kern.o";
			edt_flag = true;
			break;
		case'o':
			break;
		case 'd':
			debugFlag = true;
			break;
		case 'l':
			loopback_flag = true;
			break;
		case 'n':
			cg_id = atoi(optarg);
			break;
		case 'r':
			minRate = atoi(optarg) * 1.024;
			rate = minRate;
			break;
		case 's':
			stats_flag = true;
			break;
		case 't':
			dur = atoi(optarg);
			break;
		case 'w':
			work_conserving_flag = true;
			break;
		case '?':
			if (optopt == 'n' || optopt == 'r' || optopt == 't')
				fprintf(stderr,
					"Option -%c requires an argument.\n\n",
					optopt);
		case 'h':
			__fallthrough;
		default:
			Usage();
			return 0;
		}
	}

	if (optind < argc)
		prog = argv[optind];
	printf("HBM prog: %s\n", prog != NULL ? prog : "NULL");

	return run_bpf_prog(prog, cg_id);
}