fsm/test_stress.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <time.h>    /* for time() in srand() */
   4
   5 #include "fsm.h"
   6 #include "states.h"
   7 #include "types.h"
   8
   9 #define NSTATES 20
  10 #define NEVENTS 20
  11 #define NEPOCHS 100000
  12
  13 /* Function prototypes */
  14 void foo1(void *data);
  15 void foo2(void *data);
  16
  17 void foo1(void *data)
  18 {
  19 }
  20
  21 void foo2(void *data)
  22 {
  23 }
  24
  25 int main(int argc, char *argv[])
  26 {
  27     state_t *state[NSTATES];
  28     void (*pf[])(void *) = { foo1, foo2, NULL };
  29     fsm_t *fsm;
  30     unsigned int i, j, k;
  31
  32     /* Initialize fsm */
  33     printf("Initializing fsm\n");
  34     fsm_init(&fsm, 2<<11, 5, 0);
  35
  36     /* Initialize random number generator */
  37     srand(time(NULL));
  38
  39     /* Initialize states */
  40     printf("Initializing states (%u)\n", NSTATES);
  41     for (i = 0; i < NSTATES; i++) {
  42         if (state_init(&state[i], 2<<12, 2) == ST_NOMEM) {
  43             fprintf(stderr, "error: state_init(): ST_NOMEM\n");
  44             for (j = 0; j < i; j++)
  45                 state_free(state[j]);
  46             fsm_free(fsm);
  47             exit(EXIT_FAILURE);
  48         }
  49     }
  50
  51     /* Populate states with events they can handle */
  52     printf("Populating states with events (events/state = %u)\n", NEVENTS);
  53     for (i = 0; i < NSTATES; i++) {
  54         for (j = 0; j < NEVENTS; j++) {
  55             if (state_add_evt(state[i], j, "", pf[rand() % 3], state[i]) == ST_NOMEM) {
  56                 fprintf(stderr, "error: state_add_evt(): ST_NOMEM\n");
  57                 for (k = 0; k < i; k++)
  58                     state_free(state[k]);
  59                 fsm_free(fsm);
  60                 exit(EXIT_FAILURE);
  61             }
  62         }
  63     }
  64
  65     /* Add states to fsm */
  66     printf("Adding states to fsm (%u)\n", NSTATES);
  67     for (i = 0; i < NSTATES; i++)
  68         fsm_add_state(fsm, i, state[i]);
  69
  70     /* Set initial state */
  71     fsm_set_state(fsm, 0);
  72
  73     /* Process events */
  74     printf("Simulating (events = %u)\n", NEPOCHS);
  75     for (i = 0; i < NEPOCHS; i++)
  76         fsm_process_event(fsm, rand() % NEVENTS, NULL);
  77
  78     /* Free memory */
  79     printf("Destroying FSM\n");
  80     fsm_free(fsm);
  81
  82     return EXIT_SUCCESS;
  83 }
  84