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#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
#include <unistd.h>
#include <string.h>
#include <osmocom/core/utils.h>
#include <osmocom/core/select.h>
#include <osmocom/core/logging.h>
#include <osmocom/core/fsm.h>
enum {
DMAIN,
};
static void *g_ctx;
enum test_fsm_states {
ST_NULL = 0,
ST_ONE,
ST_TWO,
};
enum test_fsm_evt {
EV_A,
EV_B,
};
static void test_fsm_null(struct osmo_fsm_inst *fi, uint32_t event, void *data)
{
switch (event) {
case EV_A:
OSMO_ASSERT(data == (void *) 23);
osmo_fsm_inst_state_chg(fi, ST_ONE, 0, 0);
break;
default:
OSMO_ASSERT(0);
break;
}
}
static void test_fsm_one(struct osmo_fsm_inst *fi, uint32_t event, void *data)
{
switch (event) {
case EV_B:
OSMO_ASSERT(data == (void *) 42);
osmo_fsm_inst_state_chg(fi,ST_TWO, 1, 2342);
break;
default:
OSMO_ASSERT(0);
break;
}
}
static void test_fsm_tmr_cb(struct osmo_fsm_inst *fi)
{
OSMO_ASSERT(fi->T == 2342);
OSMO_ASSERT(fi->state == ST_TWO);
LOGP(DMAIN, LOGL_INFO, "Timer\n");
exit(0);
}
static struct osmo_fsm_state test_fsm_states[] = {
[ST_NULL] = {
.in_event_mask = (1 << EV_A),
.out_state_mask = (1 << ST_ONE),
.name = "NULL",
.action = test_fsm_null,
},
[ST_ONE]= {
.in_event_mask = (1 << EV_B),
.out_state_mask = (1 << ST_TWO),
.name = "ONE",
.action= test_fsm_one,
},
[ST_TWO]= {
.in_event_mask = 0,
.name = "TWO",
.action = NULL,
},
};
static struct osmo_fsm fsm = {
.name = "Test FSM",
.states = test_fsm_states,
.num_states = ARRAY_SIZE(test_fsm_states),
.log_subsys = DMAIN,
};
static struct osmo_fsm_inst *foo(void)
{
struct osmo_fsm_inst *fi;
LOGP(DMAIN, LOGL_INFO, "Checking FSM allocation\n");
fi = osmo_fsm_inst_alloc(&fsm, g_ctx, NULL, LOGL_DEBUG, NULL);
OSMO_ASSERT(fi);
OSMO_ASSERT(fi->fsm == &fsm);
OSMO_ASSERT(!strncmp(osmo_fsm_inst_name(fi), fsm.name, strlen(fsm.name)));
OSMO_ASSERT(fi->state == ST_NULL);
OSMO_ASSERT(fi->log_level == LOGL_DEBUG);
/* Try invalid state transition */
osmo_fsm_inst_dispatch(fi, EV_B, (void *) 42);
OSMO_ASSERT(fi->state == ST_NULL);
/* Legitimate state transition */
osmo_fsm_inst_dispatch(fi, EV_A, (void *) 23);
OSMO_ASSERT(fi->state == ST_ONE);
/* Legitimate transition with timer */
fsm.timer_cb = test_fsm_tmr_cb;
osmo_fsm_inst_dispatch(fi, EV_B, (void *) 42);
OSMO_ASSERT(fi->state == ST_TWO);
return fi;
}
static const struct log_info_cat default_categories[] = {
[DMAIN] = {
.name = "DMAIN",
.description = "Main",
.enabled = 1, .loglevel = LOGL_DEBUG,
},
};
static const struct log_info log_info = {
.cat = default_categories,
.num_cat = ARRAY_SIZE(default_categories),
};
int main(int argc, char **argv)
{
struct log_target *stderr_target;
struct osmo_fsm_inst *finst;
osmo_fsm_log_addr(false);
log_init(&log_info, NULL);
stderr_target = log_target_create_stderr();
log_add_target(stderr_target);
log_set_print_filename(stderr_target, 0);
g_ctx = NULL;
osmo_fsm_register(&fsm);
finst = foo();
while (1) {
osmo_select_main(0);
}
osmo_fsm_inst_free(finst);
osmo_fsm_unregister(&fsm);
exit(0);
}
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