src: use namespace prefix osmo_signal*

Summary of changes:

s/signal_cbfn/osmo_signal_cbfn/g
s/register_signal_handler/osmo_signal_register_handler/g
s/unregister_signal_handler/osmo_signal_unregister_handler/g
s/dispatch_signal/osmo_signal_dispatch/g
diff --git a/openbsc/src/libmsc/gsm_04_08.c b/openbsc/src/libmsc/gsm_04_08.c
index 9b7549f..153c1e5 100644
--- a/openbsc/src/libmsc/gsm_04_08.c
+++ b/openbsc/src/libmsc/gsm_04_08.c
@@ -439,7 +439,7 @@
 	DEBUGP(DMM, "IDENTITY RESPONSE: mi_type=0x%02x MI(%s)\n",
 		mi_type, mi_string);
 
-	dispatch_signal(SS_SUBSCR, S_SUBSCR_IDENTITY, gh->data);
+	osmo_signal_dispatch(SS_SUBSCR, S_SUBSCR_IDENTITY, gh->data);
 
 	switch (mi_type) {
 	case GSM_MI_TYPE_IMSI:
@@ -520,7 +520,7 @@
 	DEBUGPC(DMM, "mi_type=0x%02x MI(%s) type=%s ", mi_type, mi_string,
 		lupd_name(lu->type));
 
-	dispatch_signal(SS_SUBSCR, S_SUBSCR_IDENTITY, &lu->mi_len);
+	osmo_signal_dispatch(SS_SUBSCR, S_SUBSCR_IDENTITY, &lu->mi_len);
 
 	switch (lu->type) {
 	case GSM48_LUPD_NORMAL:
@@ -842,7 +842,7 @@
 	DEBUGPC(DMM, "serv_type=0x%02x mi_type=0x%02x M(%s)\n",
 		req->cm_service_type, mi_type, mi_string);
 
-	dispatch_signal(SS_SUBSCR, S_SUBSCR_IDENTITY, (classmark2 + classmark2_len));
+	osmo_signal_dispatch(SS_SUBSCR, S_SUBSCR_IDENTITY, (classmark2 + classmark2_len));
 
 	if (is_siemens_bts(bts))
 		send_siemens_mrpci(msg->lchan, classmark2-1);
@@ -1190,7 +1190,7 @@
 
 	sig.lchan = msg->lchan;
 	sig.mr = NULL;
-	dispatch_signal(SS_LCHAN, S_LCHAN_HANDOVER_COMPL, &sig);
+	osmo_signal_dispatch(SS_LCHAN, S_LCHAN_HANDOVER_COMPL, &sig);
 	/* FIXME: release old channel */
 
 	return 0;
@@ -1207,7 +1207,7 @@
 
 	sig.lchan = msg->lchan;
 	sig.mr = NULL;
-	dispatch_signal(SS_LCHAN, S_LCHAN_HANDOVER_FAIL, &sig);
+	osmo_signal_dispatch(SS_LCHAN, S_LCHAN_HANDOVER_FAIL, &sig);
 	/* FIXME: release allocated new channel */
 
 	return 0;
@@ -3343,6 +3343,6 @@
  */
 static __attribute__((constructor)) void on_dso_load_0408(void)
 {
-	register_signal_handler(SS_HO, handle_ho_signal, NULL);
-	register_signal_handler(SS_ABISIP, handle_abisip_signal, NULL);
+	osmo_signal_register_handler(SS_HO, handle_ho_signal, NULL);
+	osmo_signal_register_handler(SS_ABISIP, handle_abisip_signal, NULL);
 }
diff --git a/openbsc/src/libmsc/gsm_04_11.c b/openbsc/src/libmsc/gsm_04_11.c
index 1db307a..326c2b8 100644
--- a/openbsc/src/libmsc/gsm_04_11.c
+++ b/openbsc/src/libmsc/gsm_04_11.c
@@ -151,7 +151,7 @@
 	sig.trans = trans;
 	sig.sms = sms;
 	sig.paging_result = paging_result;
-	dispatch_signal(SS_SMS, sig_no, &sig);
+	osmo_signal_dispatch(SS_SMS, sig_no, &sig);
 }
 
 /*
diff --git a/openbsc/src/libmsc/gsm_subscriber.c b/openbsc/src/libmsc/gsm_subscriber.c
index f0372af..f9eebc8 100644
--- a/openbsc/src/libmsc/gsm_subscriber.c
+++ b/openbsc/src/libmsc/gsm_subscriber.c
@@ -97,7 +97,7 @@
 	sig_data.bts	= conn ? conn->bts : NULL;
 	sig_data.conn	= conn;
 	sig_data.paging_result = event;
-	dispatch_signal(
+	osmo_signal_dispatch(
 		SS_PAGING,
 		event == GSM_PAGING_SUCCEEDED ?
 			S_PAGING_SUCCEEDED : S_PAGING_EXPIRED,
@@ -337,7 +337,7 @@
 			subscr_name(s), s->lac);
 		rc = db_sync_subscriber(s);
 		db_subscriber_update(s);
-		dispatch_signal(SS_SUBSCR, S_SUBSCR_ATTACHED, s);
+		osmo_signal_dispatch(SS_SUBSCR, S_SUBSCR_ATTACHED, s);
 		break;
 	case GSM_SUBSCRIBER_UPDATE_DETACHED:
 		/* Only detach if we are currently in this area */
@@ -346,7 +346,7 @@
 		LOGP(DMM, LOGL_INFO, "Subscriber %s DETACHED\n", subscr_name(s));
 		rc = db_sync_subscriber(s);
 		db_subscriber_update(s);
-		dispatch_signal(SS_SUBSCR, S_SUBSCR_DETACHED, s);
+		osmo_signal_dispatch(SS_SUBSCR, S_SUBSCR_DETACHED, s);
 		break;
 	default:
 		fprintf(stderr, "subscr_update with unknown reason: %d\n",
diff --git a/openbsc/src/libmsc/rrlp.c b/openbsc/src/libmsc/rrlp.c
index 75bccb5..161456a 100644
--- a/openbsc/src/libmsc/rrlp.c
+++ b/openbsc/src/libmsc/rrlp.c
@@ -99,6 +99,6 @@
 
 void on_dso_load_rrlp(void)
 {
-	register_signal_handler(SS_SUBSCR, subscr_sig_cb, NULL);
-	register_signal_handler(SS_PAGING, paging_sig_cb, NULL);
+	osmo_signal_register_handler(SS_SUBSCR, subscr_sig_cb, NULL);
+	osmo_signal_register_handler(SS_PAGING, paging_sig_cb, NULL);
 }
diff --git a/openbsc/src/libmsc/silent_call.c b/openbsc/src/libmsc/silent_call.c
index 9e9b72d..6a188c8 100644
--- a/openbsc/src/libmsc/silent_call.c
+++ b/openbsc/src/libmsc/silent_call.c
@@ -56,13 +56,13 @@
 			conn->lchan->ts->nr, conn->lchan->ts->trx->arfcn);
 		conn->silent_call = 1;
 		/* increment lchan reference count */
-		dispatch_signal(SS_SCALL, S_SCALL_SUCCESS, &sigdata);
+		osmo_signal_dispatch(SS_SCALL, S_SCALL_SUCCESS, &sigdata);
 		break;
 	case GSM_PAGING_EXPIRED:
 	case GSM_PAGING_BUSY:
 	case GSM_PAGING_OOM:
 		DEBUGP(DSMS, "expired\n");
-		dispatch_signal(SS_SCALL, S_SCALL_EXPIRED, &sigdata);
+		osmo_signal_dispatch(SS_SCALL, S_SCALL_EXPIRED, &sigdata);
 		break;
 	default:
 		rc = -EINVAL;
diff --git a/openbsc/src/libmsc/sms_queue.c b/openbsc/src/libmsc/sms_queue.c
index 18545bf..30fa5f0 100644
--- a/openbsc/src/libmsc/sms_queue.c
+++ b/openbsc/src/libmsc/sms_queue.c
@@ -303,8 +303,8 @@
 		return -1;
 	}
 
-	register_signal_handler(SS_SUBSCR, sms_subscr_cb, network);
-	register_signal_handler(SS_SMS, sms_sms_cb, network);
+	osmo_signal_register_handler(SS_SUBSCR, sms_subscr_cb, network);
+	osmo_signal_register_handler(SS_SMS, sms_sms_cb, network);
 
 	network->sms_queue = sms;
 	INIT_LLIST_HEAD(&sms->pending_sms);
diff --git a/openbsc/src/libmsc/token_auth.c b/openbsc/src/libmsc/token_auth.c
index b9e481d..cf26ba8 100644
--- a/openbsc/src/libmsc/token_auth.c
+++ b/openbsc/src/libmsc/token_auth.c
@@ -148,6 +148,6 @@
 //static __attribute__((constructor)) void on_dso_load_token(void)
 void on_dso_load_token(void)
 {
-	register_signal_handler(SS_SUBSCR, token_subscr_cb, NULL);
-	register_signal_handler(SS_SMS, token_sms_cb, NULL);
+	osmo_signal_register_handler(SS_SUBSCR, token_subscr_cb, NULL);
+	osmo_signal_register_handler(SS_SMS, token_sms_cb, NULL);
 }
diff --git a/openbsc/src/libmsc/vty_interface_layer3.c b/openbsc/src/libmsc/vty_interface_layer3.c
index 6ac2c65..1d0097a 100644
--- a/openbsc/src/libmsc/vty_interface_layer3.c
+++ b/openbsc/src/libmsc/vty_interface_layer3.c
@@ -764,7 +764,7 @@
 
 int bsc_vty_init_extra(void)
 {
-	register_signal_handler(SS_SCALL, scall_cbfn, NULL);
+	osmo_signal_register_handler(SS_SCALL, scall_cbfn, NULL);
 
 	install_element_ve(&show_subscr_cmd);
 	install_element_ve(&show_subscr_cache_cmd);