osmo-pcu/src/tbf_fsm.c

138 lines
3.1 KiB
C

/* tbf_fsm.c
*
* Copyright (C) 2021 by sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
* Author: Pau Espin Pedrol <pespin@sysmocom.de>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <unistd.h>
#include <talloc.h>
#include <tbf_fsm.h>
#include <gprs_rlcmac.h>
#include <gprs_debug.h>
#include <gprs_ms.h>
#include <encoding.h>
#include <bts.h>
#define X(s) (1 << (s))
const struct osmo_tdef_state_timeout tbf_fsm_timeouts[32] = {
[TBF_ST_NULL] = {},
[TBF_ST_ASSIGN] = { },
[TBF_ST_FLOW] = { },
[TBF_ST_FINISHED] = {},
[TBF_ST_WAIT_RELEASE] = {},
[TBF_ST_RELEASING] = {},
};
const struct value_string tbf_fsm_event_names[] = {
{ TBF_EV_FOOBAR, "FOOBAR" },
{ 0, NULL }
};
static void tbf_fsm_cleanup(struct osmo_fsm_inst *fi, enum osmo_fsm_term_cause cause)
{
/* TODO: needed ?
* struct tbf_fsm_ctx *ctx = (struct tbf_fsm_ctx *)fi->priv;
*/
}
static int tbf_fsm_timer_cb(struct osmo_fsm_inst *fi)
{
switch (fi->T) {
default:
break;
}
return 0;
}
static struct osmo_fsm_state tbf_fsm_states[] = {
[TBF_ST_NULL] = {
.in_event_mask =
0,
.out_state_mask =
X(TBF_ST_ASSIGN) |
X(TBF_ST_FLOW) |
X(TBF_ST_RELEASING),
.name = "NULL",
//.action = st_null,
},
[TBF_ST_ASSIGN] = {
.in_event_mask =
0,
.out_state_mask =
X(TBF_ST_FLOW) |
X(TBF_ST_FINISHED) |
X(TBF_ST_RELEASING),
.name = "ASSIGN",
//.onenter = st_assign_on_enter,
//.action = st_assign,
},
[TBF_ST_FLOW] = {
.in_event_mask =
0,
.out_state_mask =
X(TBF_ST_FINISHED) |
X(TBF_ST_WAIT_RELEASE) |
X(TBF_ST_RELEASING),
.name = "FLOW",
//.onenter = st_flow_on_enter,
//.action = st_flow,
},
[TBF_ST_FINISHED] = {
.in_event_mask =
0,
.out_state_mask =
X(TBF_ST_WAIT_RELEASE),
.name = "FINISHED",
//.onenter = st_finished_on_enter,
//.action = st_finished,
},
[TBF_ST_WAIT_RELEASE] = {
.in_event_mask =
0,
.out_state_mask =
X(TBF_ST_RELEASING),
.name = "WAIT_RELEASE",
//.action = st_wait_release,
},
[TBF_ST_RELEASING] = {
.in_event_mask =
0,
.out_state_mask =
0,
.name = "RELEASING",
//.action = st_releasing,
},
};
struct osmo_fsm tbf_fsm = {
.name = "TBF",
.states = tbf_fsm_states,
.num_states = ARRAY_SIZE(tbf_fsm_states),
.timer_cb = tbf_fsm_timer_cb,
.cleanup = tbf_fsm_cleanup,
.log_subsys = DTBF,
.event_names = tbf_fsm_event_names,
};
static __attribute__((constructor)) void tbf_fsm_init(void)
{
OSMO_ASSERT(osmo_fsm_register(&tbf_fsm) == 0);
}