2 * @brief Entry point for the model checker.
9 #include "threads-model.h"
13 /* global "model" object */
15 #include "snapshot-interface.h"
17 static void param_defaults(struct model_params * params) {
19 params->maxfuturedelay = 100;
20 params->fairwindow = 0;
21 params->enabledcount = 1;
23 params->maxfuturevalues = 0;
26 static void print_usage(struct model_params *params) {
27 /* Reset defaults before printing */
28 param_defaults(params);
31 "Usage: <program name> [MC_OPTIONS] -- [PROGRAM ARGUMENTS]\n"
34 "-h Display this help message and exit\n"
35 "-m Maximum times a thread can read from the same write\n"
36 " while other writes exist. Default: %d\n"
37 "-M Maximum number of future values that can be sent to\n"
38 " the same read. Default: %d\n"
39 "-s Maximum actions that the model checker will wait for\n"
40 " a write from the future past the expected number of\n"
41 " actions. Default: %d\n"
42 "-f Specify a fairness window in which actions that are\n"
43 " enabled sufficiently many times should receive\n"
44 " priority for execution. Default: %d\n"
45 "-e Enabled count. Default: %d\n"
46 "-b Upper length bound. Default: %d\n"
47 "-- Program arguments follow.\n\n",
48 params->maxreads, params->maxfuturevalues, params->maxfuturedelay, params->fairwindow, params->enabledcount, params->bound);
52 static void parse_options(struct model_params *params, int *argc, char ***argv) {
53 const char *shortopts = "hm:M:s:f:e:b:";
56 while (!error && (opt = getopt(*argc, *argv, shortopts)) != -1) {
62 params->maxfuturedelay = atoi(optarg);
65 params->fairwindow = atoi(optarg);
68 params->enabledcount = atoi(optarg);
71 params->bound = atoi(optarg);
74 params->maxreads = atoi(optarg);
77 params->maxfuturevalues = atoi(optarg);
84 (*argv)[optind - 1] = (*argv)[0];
85 (*argc) -= (optind - 1);
86 (*argv) += (optind - 1);
96 /** Wrapper to run the user's main function, with appropriate arguments */
97 void wrapper_user_main(void *)
99 user_main(main_argc, main_argv);
102 /** The model_main function contains the main model checking loop. */
103 static void model_main() {
105 struct model_params params;
107 param_defaults(¶ms);
109 parse_options(¶ms, &main_argc, &main_argv);
111 //Initialize race detector
114 //Create the singleton SnapshotStack object
115 snapshotObject = new SnapshotStack();
117 model = new ModelChecker(params);
119 snapshotObject->snapshotStep(0);
121 /* Start user program */
122 model->add_thread(new Thread(&user_thread, &wrapper_user_main, NULL));
124 /* Wait for all threads to complete */
125 model->finish_execution();
126 } while (model->next_execution());
134 * Main function. Just initializes snapshotting library and the
135 * snapshotting library calls the model_main function.
137 int main(int argc, char ** argv) {
141 /* Let's jump in quickly and start running stuff */
142 initSnapshotLibrary(10000, 1024, 1024, 4000, &model_main);