tbf_fsm: Move osmo_fsm_inst fi out of struct tbf_fsm_ctx
This is a preparatory step towards splitting tbf_fsm.c into tbf_ul_fsm.c
and tbf_dl_fsm.c.
In order to accomplish it, the struct tbf_fsm_ctx will also be
duplicated (and each one will contain a explicit ul_tbf/dl_tbf pointer).
Hence, a DL_TBF will have a struct tbf_dl_fsm_ctx and a UL_TBF will have
a struct tbf_ul_fsm_ctx, since those hold implementation specific
state. However, the FSM interface will be partly shared (events,
states), and hence we want to keep the "fi" pointer into the "tbf"
parent class so that it can be used regardless of the tbf direction
type.
Change-Id: I03e691ccf6a94431caa55653349158f5b85db017
diff --git a/src/bts.cpp b/src/bts.cpp
index 31c2b0a..d7851a2 100644
--- a/src/bts.cpp
+++ b/src/bts.cpp
@@ -707,7 +707,7 @@
}
LOGPTBFDL(dl_tbf, LOGL_DEBUG, "FN=%u Got IMM.ASS confirm\n", fn);
- osmo_fsm_inst_dispatch(dl_tbf->state_fsm.fi, TBF_EV_ASSIGN_PCUIF_CNF, NULL);
+ osmo_fsm_inst_dispatch(dl_tbf->state_fi, TBF_EV_ASSIGN_PCUIF_CNF, NULL);
return 0;
}
diff --git a/src/pdch.cpp b/src/pdch.cpp
index e9b9852..0988af6 100644
--- a/src/pdch.cpp
+++ b/src/pdch.cpp
@@ -387,7 +387,7 @@
osmo_fsm_inst_dispatch(ul_tbf->ul_ack_fsm.fi, TBF_UL_ACK_EV_RX_CTRL_ACK, NULL);
/* We only set polling on final UL ACK/NACK, something is wrong... */
if (tbf_state(tbf) == TBF_ST_FINISHED)
- osmo_fsm_inst_dispatch(ul_tbf->state_fsm.fi, TBF_EV_FINAL_UL_ACK_CONFIRMED, (void*)false);
+ osmo_fsm_inst_dispatch(ul_tbf->state_fi, TBF_EV_FINAL_UL_ACK_CONFIRMED, (void*)false);
/* ul_tbf is freed here! */
else
LOGPTBFUL(ul_tbf, LOGL_ERROR, "Received POLL_UL_ACK for UL TBF in unexpected state!\n");
@@ -416,7 +416,7 @@
tbf->direction == new_tbf->direction)
tbf_free(tbf);
- osmo_fsm_inst_dispatch(new_tbf->state_fsm.fi, TBF_EV_ASSIGN_ACK_PACCH, NULL);
+ osmo_fsm_inst_dispatch(new_tbf->state_fi, TBF_EV_ASSIGN_ACK_PACCH, NULL);
/* there might be LLC packets waiting in the queue, but the DL
* TBF might have been released while the UL TBF has been
* established */
@@ -447,7 +447,7 @@
tbf->direction == new_tbf->direction)
tbf_free(tbf);
- osmo_fsm_inst_dispatch(new_tbf->state_fsm.fi, TBF_EV_ASSIGN_ACK_PACCH, NULL);
+ osmo_fsm_inst_dispatch(new_tbf->state_fi, TBF_EV_ASSIGN_ACK_PACCH, NULL);
return;
case PDCH_ULC_POLL_CELL_CHG_CONTINUE:
@@ -735,7 +735,7 @@
"block of final UL ACK/NACK\n", fn);
ul_tbf->n_reset(N3103);
pdch_ulc_release_node(ulc, item);
- rc = osmo_fsm_inst_dispatch(ul_tbf->state_fsm.fi, TBF_EV_FINAL_UL_ACK_CONFIRMED, (void*)true);
+ rc = osmo_fsm_inst_dispatch(ul_tbf->state_fi, TBF_EV_FINAL_UL_ACK_CONFIRMED, (void*)true);
if (rc) {
/* FSM failed handling, get rid of previous finished UL TBF before providing a new one */
LOGPTBFUL(ul_tbf, LOGL_NOTICE,
diff --git a/src/tbf.cpp b/src/tbf.cpp
index 39de56b..87e85f0 100644
--- a/src/tbf.cpp
+++ b/src/tbf.cpp
@@ -117,8 +117,8 @@
memset(&state_fsm, 0, sizeof(state_fsm));
state_fsm.tbf = this;
- state_fsm.fi = osmo_fsm_inst_alloc(&tbf_fsm, this, &state_fsm, LOGL_INFO, NULL);
- OSMO_ASSERT(state_fsm.fi);
+ state_fi = osmo_fsm_inst_alloc(&tbf_fsm, this, &state_fsm, LOGL_INFO, NULL);
+ OSMO_ASSERT(state_fi);
memset(&ul_ass_fsm, 0, sizeof(ul_ass_fsm));
ul_ass_fsm.tbf = this;
@@ -140,8 +140,8 @@
gprs_rlcmac_tbf::~gprs_rlcmac_tbf()
{
- osmo_fsm_inst_free(state_fsm.fi);
- state_fsm.fi = NULL;
+ osmo_fsm_inst_free(state_fi);
+ state_fi = NULL;
osmo_fsm_inst_free(ul_ass_fsm.fi);
ul_ass_fsm.fi = NULL;
@@ -538,7 +538,7 @@
if (state_is(TBF_ST_FINISHED)) {
if (ul_tbf->n_inc(N3103)) {
bts_do_rate_ctr_inc(bts, CTR_PUAN_POLL_FAILED);
- osmo_fsm_inst_dispatch(this->state_fsm.fi, TBF_EV_MAX_N3103, NULL);
+ osmo_fsm_inst_dispatch(this->state_fi, TBF_EV_MAX_N3103, NULL);
return;
}
}
@@ -555,7 +555,7 @@
bts_do_rate_ctr_inc(bts, CTR_RLC_ASS_TIMEDOUT);
bts_do_rate_ctr_inc(bts, CTR_PUA_POLL_TIMEDOUT);
if (n_inc(N3105)) {
- osmo_fsm_inst_dispatch(this->state_fsm.fi, TBF_EV_MAX_N3105, NULL);
+ osmo_fsm_inst_dispatch(this->state_fi, TBF_EV_MAX_N3105, NULL);
bts_do_rate_ctr_inc(bts, CTR_RLC_ASS_FAILED);
bts_do_rate_ctr_inc(bts, CTR_PUA_POLL_FAILED);
return;
@@ -574,7 +574,7 @@
bts_do_rate_ctr_inc(bts, CTR_RLC_ASS_TIMEDOUT);
bts_do_rate_ctr_inc(bts, CTR_PDA_POLL_TIMEDOUT);
if (n_inc(N3105)) {
- osmo_fsm_inst_dispatch(this->state_fsm.fi, TBF_EV_MAX_N3105, NULL);
+ osmo_fsm_inst_dispatch(this->state_fi, TBF_EV_MAX_N3105, NULL);
bts_do_rate_ctr_inc(bts, CTR_RLC_ASS_FAILED);
bts_do_rate_ctr_inc(bts, CTR_PDA_POLL_FAILED);
return;
@@ -610,13 +610,13 @@
bts_do_rate_ctr_inc(bts, CTR_PDAN_POLL_TIMEDOUT);
}
if (dl_tbf->n_inc(N3105)) {
- osmo_fsm_inst_dispatch(this->state_fsm.fi, TBF_EV_MAX_N3105, NULL);
+ osmo_fsm_inst_dispatch(this->state_fi, TBF_EV_MAX_N3105, NULL);
bts_do_rate_ctr_inc(bts, CTR_PDAN_POLL_FAILED);
bts_do_rate_ctr_inc(bts, CTR_RLC_ACK_FAILED);
return;
}
/* resend IMM.ASS on CCCH on timeout */
- osmo_fsm_inst_dispatch(this->state_fsm.fi, TBF_EV_DL_ACKNACK_MISS, NULL);
+ osmo_fsm_inst_dispatch(this->state_fi, TBF_EV_DL_ACKNACK_MISS, NULL);
break;
default:
@@ -700,7 +700,7 @@
{
const char *buf = tbf->name(false);
- osmo_fsm_inst_update_id(tbf->state_fsm.fi, buf);
+ osmo_fsm_inst_update_id(tbf->state_fi, buf);
osmo_fsm_inst_update_id(tbf->ul_ass_fsm.fi, buf);
osmo_fsm_inst_update_id(tbf->dl_ass_fsm.fi, buf);
@@ -782,12 +782,12 @@
/* C API */
enum tbf_fsm_states tbf_state(const struct gprs_rlcmac_tbf *tbf)
{
- return (enum tbf_fsm_states)tbf->state_fsm.fi->state;
+ return (enum tbf_fsm_states)tbf->state_fi->state;
}
struct osmo_fsm_inst *tbf_state_fi(const struct gprs_rlcmac_tbf *tbf)
{
- return tbf->state_fsm.fi;
+ return tbf->state_fi;
}
struct osmo_fsm_inst *tbf_ul_ass_fi(const struct gprs_rlcmac_tbf *tbf)
diff --git a/src/tbf.h b/src/tbf.h
index 678607b..b2d8db6 100644
--- a/src/tbf.h
+++ b/src/tbf.h
@@ -257,6 +257,7 @@
time_t m_created_ts;
struct rate_ctr_group *m_ctrs;
+ struct osmo_fsm_inst *state_fi;
struct tbf_fsm_ctx state_fsm;
struct tbf_ul_ass_fsm_ctx ul_ass_fsm;
struct tbf_ul_ass_fsm_ctx dl_ass_fsm;
@@ -302,7 +303,7 @@
inline const char *gprs_rlcmac_tbf::state_name() const
{
- return osmo_fsm_inst_state_name(state_fsm.fi);
+ return osmo_fsm_inst_state_name(state_fi);
}
inline bool gprs_rlcmac_tbf::check_n_clear(uint8_t state_flag)
@@ -329,9 +330,9 @@
{
/* The TBF is established or has been assigned by a IMM.ASS for
* download */
- return state_fsm.fi->state > TBF_ST_ASSIGN ||
+ return state_fi->state > TBF_ST_ASSIGN ||
(direction == GPRS_RLCMAC_DL_TBF &&
- state_fsm.fi->state == TBF_ST_ASSIGN &&
+ state_fi->state == TBF_ST_ASSIGN &&
(state_fsm.state_flags & (1 << GPRS_RLCMAC_FLAG_CCCH)));
}
diff --git a/src/tbf_dl.cpp b/src/tbf_dl.cpp
index cc809da..e088e65 100644
--- a/src/tbf_dl.cpp
+++ b/src/tbf_dl.cpp
@@ -422,7 +422,7 @@
osmo_fsm_inst_dispatch(old_tbf->dl_ass_fsm.fi, TBF_DL_ASS_EV_SCHED_ASS, NULL);
/* change state */
- osmo_fsm_inst_dispatch(tbf->state_fsm.fi, TBF_EV_ASSIGN_ADD_PACCH, NULL);
+ osmo_fsm_inst_dispatch(tbf->state_fi, TBF_EV_ASSIGN_ADD_PACCH, NULL);
}
@@ -436,7 +436,7 @@
LOGPTBFDL(tbf, LOGL_DEBUG, "Send downlink assignment on PCH, no TBF exist (IMSI=%s)\n", ms_imsi(ms));
/* change state */
- osmo_fsm_inst_dispatch(tbf->state_fsm.fi, TBF_EV_ASSIGN_ADD_CCCH, NULL);
+ osmo_fsm_inst_dispatch(tbf->state_fi, TBF_EV_ASSIGN_ADD_CCCH, NULL);
/* send immediate assignment */
bts_snd_dl_ass(ms->bts, tbf);
@@ -528,7 +528,7 @@
is_final = llc_queue_size(llc_queue()) == 0 && !keep_open(fn);
if (is_final) {
rdbi->cv = 0;
- osmo_fsm_inst_dispatch(this->state_fsm.fi, TBF_EV_LAST_DL_DATA_SENT, NULL);
+ osmo_fsm_inst_dispatch(this->state_fi, TBF_EV_LAST_DL_DATA_SENT, NULL);
}
if (mcs_is_edge(cs)) {
@@ -573,7 +573,7 @@
if (is_final) {
request_dl_ack();
- osmo_fsm_inst_dispatch(this->state_fsm.fi, TBF_EV_LAST_DL_DATA_SENT, NULL);
+ osmo_fsm_inst_dispatch(this->state_fi, TBF_EV_LAST_DL_DATA_SENT, NULL);
}
/* dequeue next LLC frame, if any */
@@ -962,7 +962,7 @@
uint16_t received;
int rc = 0;
- osmo_fsm_inst_dispatch(this->state_fsm.fi, TBF_EV_FINAL_ACK_RECVD, NULL);
+ osmo_fsm_inst_dispatch(this->state_fi, TBF_EV_FINAL_ACK_RECVD, NULL);
/* range V(A)..V(S)-1 */
received = m_window.count_unacked();
diff --git a/src/tbf_fsm.c b/src/tbf_fsm.c
index c08fb88..4dcac17 100644
--- a/src/tbf_fsm.c
+++ b/src/tbf_fsm.c
@@ -417,20 +417,21 @@
}
}
-static void handle_timeout_X2002(struct tbf_fsm_ctx *ctx)
+static void handle_timeout_X2002(struct osmo_fsm_inst *fi)
{
+ struct tbf_fsm_ctx *ctx = (struct tbf_fsm_ctx *)fi->priv;
struct gprs_rlcmac_dl_tbf *dl_tbf = tbf_as_dl_tbf(ctx->tbf);
/* X2002 is used only for DL TBF */
OSMO_ASSERT(dl_tbf);
- if (ctx->fi->state == TBF_ST_ASSIGN) {
+ if (fi->state == TBF_ST_ASSIGN) {
tbf_assign_control_ts(ctx->tbf);
if (!tbf_can_upgrade_to_multislot(ctx->tbf)) {
/* change state to FLOW, so scheduler
* will start transmission */
- osmo_fsm_inst_dispatch(ctx->fi, TBF_EV_ASSIGN_READY_CCCH, NULL);
+ osmo_fsm_inst_dispatch(fi, TBF_EV_ASSIGN_READY_CCCH, NULL);
return;
}
@@ -453,7 +454,7 @@
struct tbf_fsm_ctx *ctx = (struct tbf_fsm_ctx *)fi->priv;
switch (fi->T) {
case -2002:
- handle_timeout_X2002(ctx);
+ handle_timeout_X2002(fi);
break;
case -2001:
LOGPTBF(ctx->tbf, LOGL_NOTICE, "releasing due to PACCH assignment timeout.\n");
diff --git a/src/tbf_fsm.h b/src/tbf_fsm.h
index c46d86c..8f4f839 100644
--- a/src/tbf_fsm.h
+++ b/src/tbf_fsm.h
@@ -50,7 +50,6 @@
};
struct tbf_fsm_ctx {
- struct osmo_fsm_inst *fi;
struct gprs_rlcmac_tbf* tbf; /* back pointer */
uint32_t state_flags;
unsigned int T_release; /* Timer to be used to end release: T3169 or T3195 */
diff --git a/src/tbf_ul.cpp b/src/tbf_ul.cpp
index d07998c..0fe3700 100644
--- a/src/tbf_ul.cpp
+++ b/src/tbf_ul.cpp
@@ -186,7 +186,7 @@
ms_attach_tbf(ms, ul_tbf);
llist_add(tbf_trx_list((struct gprs_rlcmac_tbf *)ul_tbf), &trx->ul_tbfs);
bts_do_rate_ctr_inc(ul_tbf->bts, CTR_TBF_UL_ALLOCATED);
- osmo_fsm_inst_dispatch(ul_tbf->state_fsm.fi, TBF_EV_ASSIGN_ADD_PACCH, NULL);
+ osmo_fsm_inst_dispatch(ul_tbf->state_fi, TBF_EV_ASSIGN_ADD_PACCH, NULL);
osmo_fsm_inst_dispatch(ul_tbf->ul_ass_fsm.fi, TBF_UL_ASS_EV_SCHED_ASS_REJ, NULL);
return ul_tbf;
@@ -402,7 +402,7 @@
"Decoded premier TLLI=0x%08x of UL DATA TFI=%d.\n",
new_tlli, rlc->tfi);
ms_update_announced_tlli(ms(), new_tlli);
- osmo_fsm_inst_dispatch(this->state_fsm.fi, TBF_EV_FIRST_UL_DATA_RECVD, NULL);
+ osmo_fsm_inst_dispatch(this->state_fi, TBF_EV_FIRST_UL_DATA_RECVD, NULL);
} else if (new_tlli != GSM_RESERVED_TMSI && new_tlli != tlli()) {
LOGPTBFUL(this, LOGL_NOTICE,
"Decoded TLLI=%08x mismatch on UL DATA TFI=%d. (Ignoring due to contention resolution)\n",
@@ -444,7 +444,7 @@
rdbi->bsn, rdbi->cv);
if (rdbi->cv == 0) {
LOGPTBFUL(this, LOGL_DEBUG, "Finished with UL TBF\n");
- osmo_fsm_inst_dispatch(this->state_fsm.fi, TBF_EV_LAST_UL_DATA_RECVD, NULL);
+ osmo_fsm_inst_dispatch(this->state_fi, TBF_EV_LAST_UL_DATA_RECVD, NULL);
/* Reset N3103 counter. */
this->n_reset(N3103);
}
@@ -718,7 +718,7 @@
void gprs_rlcmac_ul_tbf::usf_timeout()
{
if (n_inc(N3101))
- osmo_fsm_inst_dispatch(this->state_fsm.fi, TBF_EV_MAX_N3101, NULL);
+ osmo_fsm_inst_dispatch(this->state_fi, TBF_EV_MAX_N3101, NULL);
}
struct gprs_rlcmac_ul_tbf *tbf_as_ul_tbf(struct gprs_rlcmac_tbf *tbf)