+++ /dev/null
-/* Copyright (c) 2012-2014. The SimGrid Team.
- * All rights reserved. */
-
-/* This program is free software; you can redistribute it and/or modify it
- * under the terms of the license (GNU LGPL) which comes with this package. */
-
-/***************** Centralized Mutual Exclusion Algorithm *********************/
-/* This example implements a centralized mutual exclusion algorithm. */
-/* Bug : 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");
-
-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;
- xbt_dynar_t requests = xbt_dynar_new(sizeof(char *), NULL);
- char *req;
-
- while(1){
- MSG_task_receive(&task, "coordinator");
- const char *kind = MSG_task_get_name(task);
- if (!strcmp(kind, "request")) {
- req = MSG_task_get_data(task);
- if (CS_used) {
- XBT_INFO("CS already used. Queue the request.");
- xbt_dynar_push(requests, &req);
- } 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 {
- if (!xbt_dynar_is_empty(requests)) {
- XBT_INFO("CS release. Grant to queued requests (queue size: %lu)", xbt_dynar_length(requests));
- xbt_dynar_shift(requests, &req);
- if(strcmp(req, "1") != 0){
- MSG_task_send(MSG_task_create("grant", 0, 1000, NULL), req);
- }else{
- xbt_dynar_push(requests, &req);
- CS_used = 0;
- }
- }else{
- XBT_INFO("CS release. resource now idle");
- CS_used = 0;
- }
- }
- MSG_task_destroy(task);
- task = NULL;
- kind = NULL;
- req = 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;
-
- while(1){
- 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);
-
- char **options = &argv[1];
-
- MSG_config("model-check/property","promela_bugged1_liveness");
- MC_automaton_new_propositional_symbol("r", &predR);
- MC_automaton_new_propositional_symbol("cs", &predCS);
-
- const char* platform_file = options[0];
- const char* application_file = options[1];
-
- MSG_create_environment(platform_file);
- MSG_function_register("coordinator", coordinator);
- MSG_function_register("client", client);
- MSG_launch_application(application_file);
- MSG_main();
-
- return 0;
-}