+static void param_defaults(struct model_params *params)
+{
+ params->maxreads = 0;
+ params->maxfuturedelay = 100;
+ params->fairwindow = 0;
+ params->enabledcount = 1;
+ params->bound = 0;
+ params->maxfuturevalues = 0;
+ params->expireslop = 10;
+ params->verbose = 0;
+}
+
+static void print_usage(struct model_params *params)
+{
+ /* Reset defaults before printing */
+ param_defaults(params);
+
+ model_print(
+"Usage: <program name> [MC_OPTIONS] -- [PROGRAM ARGUMENTS]\n"
+"\n"
+"Options:\n"
+"-h Display this help message and exit\n"
+"-m Maximum times a thread can read from the same write\n"
+" while other writes exist. Default: %d\n"
+"-M Maximum number of future values that can be sent to\n"
+" the same read. Default: %d\n"
+"-s Maximum actions that the model checker will wait for\n"
+" a write from the future past the expected number of\n"
+" actions. Default: %d\n"
+"-S Future value expiration sloppiness. Default: %u\n"
+"-f Specify a fairness window in which actions that are\n"
+" enabled sufficiently many times should receive\n"
+" priority for execution. Default: %d\n"
+"-e Enabled count. Default: %d\n"
+"-b Upper length bound. Default: %d\n"
+"-v Print verbose execution information.\n"
+"-- Program arguments follow.\n\n",
+params->maxreads, params->maxfuturevalues, params->maxfuturedelay, params->expireslop, params->fairwindow, params->enabledcount, params->bound);
+ exit(EXIT_SUCCESS);
+}
+
+static void parse_options(struct model_params *params, int argc, char **argv)
+{
+ const char *shortopts = "hm:M:s:S:f:e:b:v";
+ int opt;
+ bool error = false;
+ while (!error && (opt = getopt(argc, argv, shortopts)) != -1) {
+ switch (opt) {
+ case 'h':
+ print_usage(params);
+ break;
+ case 's':
+ params->maxfuturedelay = atoi(optarg);
+ break;
+ case 'S':
+ params->expireslop = atoi(optarg);
+ break;
+ case 'f':
+ params->fairwindow = atoi(optarg);
+ break;
+ case 'e':
+ params->enabledcount = atoi(optarg);
+ break;
+ case 'b':
+ params->bound = atoi(optarg);
+ break;
+ case 'm':
+ params->maxreads = atoi(optarg);
+ break;
+ case 'M':
+ params->maxfuturevalues = atoi(optarg);
+ break;
+ case 'v':
+ params->verbose = 1;
+ break;
+ default: /* '?' */
+ error = true;
+ break;
+ }
+ }
+
+ /* Pass remaining arguments to user program */
+ params->argc = argc - (optind - 1);
+ params->argv = argv + (optind - 1);
+
+ /* Reset program name */
+ params->argv[0] = argv[0];
+
+ /* Reset (global) optind for potential use by user program */
+ optind = 1;
+
+ if (error)
+ print_usage(params);