add_executable(bugged2 bugged2.c)
add_executable(bugged3 bugged3.c)
add_executable(random_test random_test.c)
-add_executable(example_liveness_without_cycle automaton.c
-automatonparse_promela.c example_liveness_without_cycle.c)
+add_executable(example_liveness_with_cycle2 automaton.c
+automatonparse_promela.c example_liveness_with_cycle2.c)
add_executable(example_liveness_with_cycle automaton.c
automatonparse_promela.c example_liveness_with_cycle.c)
target_link_libraries(bugged2 simgrid m )
target_link_libraries(bugged3 simgrid m )
target_link_libraries(random_test simgrid m )
-target_link_libraries(example_liveness_without_cycle simgrid m )
+target_link_libraries(example_liveness_with_cycle2 simgrid m )
target_link_libraries(example_liveness_with_cycle simgrid m )
/***************** Centralized Mutual Exclusion Algorithm *********************/
/* This example implements a centralized mutual exclusion algorithm. */
-/* There is no bug on it, it is just provided to test the state space */
-/* reduction of DPOR. */
+/* CS requests of client 2 not satisfied */
/******************************************************************************/
#include "msg/msg.h"
#include "y.tab.c"
#define AMOUNT_OF_CLIENTS 2
-#define CS_PER_PROCESS 3
+#define CS_PER_PROCESS 4
XBT_LOG_NEW_DEFAULT_CATEGORY(example_liveness_with_cycle, "my log messages");
int my_pid = MSG_process_get_PID(MSG_process_self());
char *my_mailbox = bprintf("%s", argv[1]);
- // request the CS 3 times, sleeping a bit in between
int i;
-
+
+ // request the CS 4 times, sleeping a bit in between
for (i = 0; i < CS_PER_PROCESS; i++) {
XBT_INFO("Ask the request");
MSG_task_send(MSG_task_create("request", 0, 1000, my_mailbox), "coordinator");
+
if(strcmp(my_mailbox, "2") == 0){
p = 1;
q = 0;
+ XBT_DEBUG("Propositions changed : p=1, q=0");
}
+
// wait the answer
m_task_t grant = NULL;
MSG_task_receive(&grant, my_mailbox);
if(strcmp(my_mailbox, "2") == 0){
q = 1;
p = 0;
+ XBT_DEBUG("Propositions changed : p=0, q=1");
}
+
MSG_task_destroy(grant);
XBT_INFO("%s got the answer. Sleep a bit and release it", argv[1]);
MSG_process_sleep(1);
MSG_process_sleep(my_pid);
- q=0;
- p=0;
+ if(strcmp(my_mailbox, "2") == 0){
+ q=0;
+ p=0;
+ XBT_DEBUG("Propositions changed : p=0, q=0");
+ }
-
}
XBT_INFO("Got all the CS I wanted (%s), quit now", my_mailbox);
MSG_function_register("coordinator", coordinator);
MSG_function_register("client", client);
MSG_launch_application("deploy_mutex2.xml");
- MSG_main_liveness_stateless(automaton);
- //MSG_main();
+ MSG_main_liveness_stateless(automaton, argv[0]);
return 0;
}
--- /dev/null
+/***************** Centralized Mutual Exclusion Algorithm *********************/
+/* This example implements a centralized mutual exclusion algorithm. */
+/* CS requests of client 2 not satisfied */
+/******************************************************************************/
+
+#include "msg/msg.h"
+#include "mc/mc.h"
+#include "xbt/automaton.h"
+#include "xbt/automatonparse_promela.h"
+#include "example_liveness_with_cycle.h"
+#include "y.tab.c"
+
+#define AMOUNT_OF_CLIENTS 2
+#define CS_PER_PROCESS 3
+
+XBT_LOG_NEW_DEFAULT_CATEGORY(example_liveness_with_cycle2, "my log messages");
+
+
+int p=0;
+int q=0;
+
+int predP(){
+ return p;
+}
+
+int predQ(){
+ return q;
+}
+
+
+int coordinator(int argc, char *argv[])
+{
+ xbt_dynar_t requests = xbt_dynar_new(sizeof(char *), NULL); // dynamic vector storing requests (which are char*)
+ int CS_used = 0; // initially the CS is idle
+
+ while(1){
+ m_task_t task = NULL;
+ MSG_task_receive(&task, "coordinator");
+ const char *kind = MSG_task_get_name(task); //is it a request or a release?
+ if (!strcmp(kind, "request")) { // that's a request
+ char *req = MSG_task_get_data(task);
+ if (CS_used) { // need to push the request in the vector
+ XBT_INFO("CS already used. Queue the request of client %d", atoi(req) +1);
+ xbt_dynar_push(requests, &req);
+ } else { // can serve it immediatly
+ if(strcmp(req, "1") == 0){
+ m_task_t answer = MSG_task_create("grant", 0, 1000, NULL);
+ MSG_task_send(answer, req);
+ CS_used = 1;
+ XBT_INFO("CS idle. Grant immediatly");
+ }
+ }
+ } else { // that's a release. Check if someone was waiting for the lock
+ if (xbt_dynar_length(requests) > 0) {
+ XBT_INFO("CS release. Grant to queued requests (queue size: %lu)", xbt_dynar_length(requests));
+ char *req ;
+ xbt_dynar_get_cpy(requests, (xbt_dynar_length(requests) - 1), &req);
+ if(strcmp(req, "1") == 0){
+ xbt_dynar_pop(requests, &req);
+ MSG_task_send(MSG_task_create("grant", 0, 1000, NULL), req);
+ }else{
+ CS_used = 0;
+ }
+ } else { // nobody wants it
+ XBT_INFO("CS release. resource now idle");
+ CS_used = 0;
+ }
+ }
+ MSG_task_destroy(task);
+ }
+ XBT_INFO("Received all releases, quit now");
+ return 0;
+}
+
+int client(int argc, char *argv[])
+{
+ int my_pid = MSG_process_get_PID(MSG_process_self());
+
+ char *my_mailbox = bprintf("%s", argv[1]);
+
+ while(1){
+
+ XBT_INFO("Ask the request");
+
+ MSG_task_send(MSG_task_create("request", 0, 1000, my_mailbox), "coordinator");
+
+ if(strcmp(my_mailbox, "2") == 0){
+ p = 1;
+ q = 0;
+ XBT_INFO("Propositions changed (p=1, q=0)");
+ }
+
+ // wait the answer
+
+ m_task_t grant = NULL;
+ MSG_task_receive(&grant, my_mailbox);
+
+ if((strcmp(my_mailbox, "2") == 0) && (strcmp(MSG_task_get_name(grant), "grant") == 0)){
+ q = 1;
+ p = 0;
+ XBT_INFO("Propositions changed (q=1, p=0)");
+ }
+
+ MSG_task_destroy(grant);
+ XBT_INFO("%s got the answer. Sleep a bit and release it", argv[1]);
+ MSG_process_sleep(1);
+
+ MSG_task_send(MSG_task_create("release", 0, 1000, NULL), "coordinator");
+
+ MSG_process_sleep(my_pid);
+
+ if(strcmp(my_mailbox, "2") == 0){
+ q=0;
+ p=0;
+ XBT_INFO("Propositions changed (q=0, p=0)");
+ }
+
+ }
+
+ XBT_INFO("Got all the CS I wanted (%s), quit now", my_mailbox);
+ return 0;
+}
+
+int main(int argc, char *argv[])
+{
+ init();
+ yyparse();
+ automaton = get_automaton();
+ xbt_new_propositional_symbol(automaton,"p", &predP);
+ xbt_new_propositional_symbol(automaton,"q", &predQ);
+
+ MSG_global_init(&argc, argv);
+ MSG_create_environment("../msg_platform.xml");
+ MSG_function_register("coordinator", coordinator);
+ MSG_function_register("client", client);
+ MSG_launch_application("deploy_mutex2.xml");
+ MSG_main_liveness_stateless(automaton, argv[0]);
+
+ return 0;
+}
+++ /dev/null
-#include "xbt/automaton.h"
-#include "xbt/automatonparse_promela.h"
-#include "example_liveness_without_cycle.h"
-#include "msg/msg.h"
-#include "mc/mc.h"
-
-#include "y.tab.c"
-
-#define N 3
-
-XBT_LOG_NEW_DEFAULT_CATEGORY(example_liveness_without_cycle, "Example liveness without cycle");
-
-extern xbt_automaton_t automaton;
-
-int r=0;
-int e=1;
-int d=1;
-
-int predR(){
- return r;
-}
-
-int predD(){
- return d;
-}
-
-int predE(){
- return e;
-}
-
-
-
-int server(int argc, char *argv[])
-{
- m_task_t task = NULL;
- int count = 0;
- while (count < N) {
- if (task) {
- MSG_task_destroy(task);
- task = NULL;
- }
- MSG_task_receive(&task, "mymailbox");
- count++;
- r=(r+1)%2;
- //XBT_INFO("r (server) = %d", r);
-
- }
- //MC_assert_pair_stateless(atoi(MSG_task_get_name(task)) == 3);
-
- XBT_INFO("OK");
- return 0;
-}
-
-int client(int argc, char *argv[])
-{
-
- m_task_t task =
- MSG_task_create(argv[1], 0 /*comp cost */ , 10000 /*comm size */ ,
- NULL /*arbitrary data */ );
-
- MSG_task_send(task, "mymailbox");
-
- XBT_INFO("Sent!");
-
- r=(r+1)%2;
- //XBT_INFO("r (client) = %d", r);
-
- return 0;
-}
-
-
-
-int main(int argc, char **argv){
- init();
- yyparse();
- automaton = get_automaton();
- xbt_new_propositional_symbol(automaton,"r", &predR);
- xbt_new_propositional_symbol(automaton,"e", &predE);
- xbt_new_propositional_symbol(automaton,"d", &predD);
-
- //display_automaton();
-
- MSG_global_init(&argc, argv);
-
- MSG_create_environment("platform.xml");
-
- MSG_function_register("server", server);
-
- MSG_function_register("client", client);
-
- MSG_launch_application("deploy_bugged1.xml");
-
- //XBT_INFO("r=%d", r);
-
- MSG_main_liveness_stateless(automaton);
-
- MSG_clean();
-
- return 0;
-
-}
+++ /dev/null
-#ifndef _EXAMPLE_LIVENESS_WITHOUT_CYCLE_H
-#define _EXAMPLE_LIVENESS_WITHOUT_CYCLE_H
-
-int yyparse(void);
-int yywrap(void);
-int yylex(void);
-
-int predP(void);
-int predR(void);
-int predQ(void);
-int predD(void);
-int predE(void);
-
-
-
-
-int server(int argc, char *argv[]);
-int client(int argc, char *argv[]);
-
-#endif
