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;
24 params->expireslop = 2;
27 static void print_usage(struct model_params *params) {
28 /* Reset defaults before printing */
29 param_defaults(params);
32 "Usage: <program name> [MC_OPTIONS] -- [PROGRAM ARGUMENTS]\n"
35 "-h Display this help message and exit\n"
36 "-m Maximum times a thread can read from the same write\n"
37 " while other writes exist. Default: %d\n"
38 "-M Maximum number of future values that can be sent to\n"
39 " the same read. Default: %d\n"
40 "-s Maximum actions that the model checker will wait for\n"
41 " a write from the future past the expected number of\n"
42 " actions. Default: %d\n"
43 "-S Future value expiration sloppiness. Default: %u\n"
44 "-f Specify a fairness window in which actions that are\n"
45 " enabled sufficiently many times should receive\n"
46 " priority for execution. Default: %d\n"
47 "-e Enabled count. Default: %d\n"
48 "-b Upper length bound. Default: %d\n"
49 "-- Program arguments follow.\n\n",
50 params->maxreads, params->maxfuturevalues, params->maxfuturedelay, params->expireslop, params->fairwindow, params->enabledcount, params->bound);
54 static void parse_options(struct model_params *params, int *argc, char ***argv) {
55 const char *shortopts = "hm:M:s:S:f:e:b:";
58 while (!error && (opt = getopt(*argc, *argv, shortopts)) != -1) {
64 params->maxfuturedelay = atoi(optarg);
67 params->expireslop = atoi(optarg);
70 params->fairwindow = atoi(optarg);
73 params->enabledcount = atoi(optarg);
76 params->bound = atoi(optarg);
79 params->maxreads = atoi(optarg);
82 params->maxfuturevalues = atoi(optarg);
89 (*argv)[optind - 1] = (*argv)[0];
90 (*argc) -= (optind - 1);
91 (*argv) += (optind - 1);
101 /** Wrapper to run the user's main function, with appropriate arguments */
102 void wrapper_user_main(void *)
104 user_main(main_argc, main_argv);
107 /** The model_main function contains the main model checking loop. */
108 static void model_main() {
110 struct model_params params;
112 param_defaults(¶ms);
114 parse_options(¶ms, &main_argc, &main_argv);
116 //Initialize race detector
119 //Create the singleton SnapshotStack object
120 snapshotObject = new SnapshotStack();
122 model = new ModelChecker(params);
124 snapshotObject->snapshotStep(0);
126 /* Start user program */
127 model->add_thread(new Thread(&user_thread, &wrapper_user_main, NULL));
129 /* Wait for all threads to complete */
130 model->finish_execution();
131 } while (model->next_execution());
139 * Main function. Just initializes snapshotting library and the
140 * snapshotting library calls the model_main function.
142 int main(int argc, char ** argv) {
146 /* Let's jump in quickly and start running stuff */
147 initSnapshotLibrary(10000, 1024, 1024, 4000, &model_main);