osmo-bsc/include/osmocom/bsc/gsm_timers.h

57 lines
1.8 KiB
C

/* API to define Tnnn timers globally, configure in VTY and use for FSM state changes. */
#pragma once
#include <stdint.h>
#include <osmocom/core/utils.h>
struct osmo_fsm_inst;
struct vty;
enum T_unit {
T_S = 0, /*< most T are in seconds, keep 0 as default. */
T_MS, /*< milliseconds */
T_M, /*< minutes */
T_CUSTOM,
};
extern const struct value_string T_unit_names[];
static inline const char *T_unit_name(enum T_unit val)
{ return get_value_string(T_unit_names, val); }
/* Define a GSM timer of the form Tnnn, with unit, default value and doc string. */
struct T_def {
const int T; /*< T1234 number */
const int default_val; /*< timeout duration (according to unit), default value. */
const enum T_unit unit;
const char *desc;
int val; /*< currently active value, e.g. set by user config. */
};
/* Iterate an array of struct T_def, the last item should be fully zero, i.e. "{}" */
#define for_each_T_def(d, T_defs) \
for (d = T_defs; d && (d->T || d->default_val || d->desc); d++)
int T_def_get(const struct T_def *T_defs, int T, enum T_unit as_unit, int val_if_not_present);
void T_defs_reset(struct T_def *T_defs);
struct T_def *T_def_get_entry(struct T_def *T_defs, int T);
void T_defs_vty_init(struct T_def *T_defs, int cfg_parent_node);
void T_defs_vty_write(struct vty *vty, const char *indent);
struct state_timeout {
int T;
bool keep_timer;
};
const struct state_timeout *get_state_timeout(uint32_t state,
const struct state_timeout *timeouts_array);
#define fsm_inst_state_chg_T(fi, state, timeouts_array, T_defs, default_timeout) \
_fsm_inst_state_chg_T(fi, state, timeouts_array, T_defs, default_timeout, \
__FILE__, __LINE__)
int _fsm_inst_state_chg_T(struct osmo_fsm_inst *fi, uint32_t state,
const struct state_timeout *timeouts_array,
const struct T_def *T_defs, int default_timeout,
const char *file, int line);