ASCI: Allow usage of rtp_stream with other FSM
Allow the caller of rtp_stream_alloc() to define what events will be
dispatched to the parent FSM. This allows other state machines to use
rtp_stream. It is required for using RTP stream process with VGCS FSM.
Drop the unused parent_call_leg member.
Change-Id: I0991927b6d00da08dfd455980645e68281a73a9e
Related: OS#4854
diff --git a/src/libmsc/rtp_stream.c b/src/libmsc/rtp_stream.c
index dcb4ef0..1f885c5 100644
--- a/src/libmsc/rtp_stream.c
+++ b/src/libmsc/rtp_stream.c
@@ -110,13 +110,14 @@
/* Allocate RTP stream under a call leg. This is one RTP connection from some remote entity with address and port to a
* local RTP address and port. call_id is stored for sending in MGCP transactions and as logging context. for_trans is
* optional, merely stored for reference by callers, and appears as log context if not NULL. */
-struct rtp_stream *rtp_stream_alloc(struct call_leg *parent_call_leg, enum rtp_direction dir,
- uint32_t call_id, struct gsm_trans *for_trans)
+struct rtp_stream *rtp_stream_alloc(struct osmo_fsm_inst *parent_fi, uint32_t event_gone, uint32_t event_avail,
+ uint32_t event_estab, enum rtp_direction dir, uint32_t call_id,
+ struct gsm_trans *for_trans)
{
struct osmo_fsm_inst *fi;
struct rtp_stream *rtps;
- fi = osmo_fsm_inst_alloc_child(&rtp_stream_fsm, parent_call_leg->fi, CALL_LEG_EV_RTP_STREAM_GONE);
+ fi = osmo_fsm_inst_alloc_child(&rtp_stream_fsm, parent_fi, event_gone);
OSMO_ASSERT(fi);
rtps = talloc(fi, struct rtp_stream);
@@ -124,7 +125,8 @@
fi->priv = rtps;
*rtps = (struct rtp_stream){
.fi = fi,
- .parent_call_leg = parent_call_leg,
+ .event_avail = event_avail,
+ .event_estab = event_estab,
.call_id = call_id,
.for_trans = for_trans,
.dir = dir,
@@ -172,7 +174,7 @@
if (crcx_info->x_osmo_osmux_use)
rtps->local_osmux_cid = crcx_info->x_osmo_osmux_cid;
rtp_stream_update_id(rtps);
- osmo_fsm_inst_dispatch(fi->proc.parent, CALL_LEG_EV_RTP_STREAM_ADDR_AVAILABLE, rtps);
+ osmo_fsm_inst_dispatch(fi->proc.parent, rtps->event_avail, rtps);
check_established(rtps);
if ((!rtps->remote_sent_to_mgw || !rtps->codecs_sent_to_mgw || !rtps->mode_sent_to_mgw)
@@ -212,7 +214,7 @@
void rtp_stream_fsm_established_onenter(struct osmo_fsm_inst *fi, uint32_t prev_state)
{
struct rtp_stream *rtps = fi->priv;
- osmo_fsm_inst_dispatch(fi->proc.parent, CALL_LEG_EV_RTP_STREAM_ESTABLISHED, rtps);
+ osmo_fsm_inst_dispatch(fi->proc.parent, rtps->event_estab, rtps);
}
static int rtp_stream_fsm_timer_cb(struct osmo_fsm_inst *fi)