+++ /dev/null
-/***************** Centralized Mutual Exclusion Algorithm *********************/
-/* This example implements a centralized mutual exclusion algorithm. */
-/* CS requests of client 1 not satisfied */
-/* LTL property checked : G(r->F(cs)); (r=request of CS, cs=CS ok) */
-/******************************************************************************/
-
-#include "msg/msg.h"
-#include "mc/mc.h"
-#include "xbt/automaton.h"
-#include "bugged1_liveness.h"
-
-XBT_LOG_NEW_DEFAULT_CATEGORY(bugged1_liveness, "my log messages");
-
-#define NB_REQUESTS 3
-#define NB_CLIENTS 3
-
-int r=0;
-int cs=0;
-
-int predR(){
- return r;
-}
-
-int predCS(){
- return cs;
-}
-
-
-int coordinator(int argc, char *argv[])
-{
-
- int CS_used = 0;
- msg_task_t task = NULL, answer = NULL;
-
- int i;
-
- for(i=0; i<(NB_REQUESTS * NB_CLIENTS); i++){
- MSG_task_receive(&task, "coordinator");
- const char *kind = MSG_task_get_name(task);
- if (!strcmp(kind, "request")) {
- char *req = MSG_task_get_data(task);
- if (CS_used) {
- //XBT_INFO("CS already used.");
- } else {
- if(strcmp(req, "1") != 0){
- //XBT_INFO("CS idle. Grant immediatly");
- answer = MSG_task_create("grant", 0, 1000, NULL);
- MSG_task_send(answer, req);
- CS_used = 1;
- answer = NULL;
- }
- }
- } else {
- //XBT_INFO("CS release. resource now idle");
- CS_used = 0;
- }
- MSG_task_destroy(task);
- task = NULL;
- kind = NULL;
- }
-
- return 0;
-}
-
-int client(int argc, char *argv[])
-{
- int my_pid = MSG_process_get_PID(MSG_process_self());
-
- char *my_mailbox = xbt_strdup(argv[1]);
- msg_task_t grant = NULL, release = NULL;
-
- int i;
-
- for(i=0; i<NB_REQUESTS; i++){
-
- //XBT_INFO("Ask the request");
- MSG_task_send(MSG_task_create("request", 0, 1000, my_mailbox), "coordinator");
-
- if(strcmp(my_mailbox, "1") == 0){
- r = 1;
- cs = 0;
- //XBT_INFO("Propositions changed : r=1, cs=0");
- }
-
- MSG_task_receive(&grant, my_mailbox);
- const char *kind = MSG_task_get_name(grant);
-
- if((strcmp(my_mailbox, "1") == 0) && (strcmp("grant", kind) == 0)){
- cs = 1;
- r = 0;
- //XBT_INFO("Propositions changed : r=0, cs=1");
- }
-
- MSG_task_destroy(grant);
- grant = NULL;
- kind = NULL;
-
- //XBT_INFO("%s got the answer. Sleep a bit and release it", argv[1]);
-
- MSG_process_sleep(1);
-
- release = MSG_task_create("release", 0, 1000, NULL);
- MSG_task_send(release, "coordinator");
-
- release = NULL;
-
- MSG_process_sleep(my_pid);
-
- if(strcmp(my_mailbox, "1") == 0){
- cs=0;
- r=0;
- //XBT_INFO("Propositions changed : r=0, cs=0");
- }
-
- }
-
- return 0;
-}
-
-int main(int argc, char *argv[])
-{
-
- MSG_init(&argc, argv);
-
- MSG_config("model-check/property","promela_bugged1_liveness");
- MC_automaton_new_propositional_symbol("r", &predR);
- MC_automaton_new_propositional_symbol("cs", &predCS);
-
- MSG_create_environment("../msg_platform.xml");
- MSG_function_register("coordinator", coordinator);
- MSG_function_register("client", client);
- MSG_launch_application("deploy_bugged1_liveness.xml");
- MSG_main();
-
- return 0;
-}