MINOR: channel/stconn: Replace channel_shutw_now() by sc_schedule_shutdown()

After the flag renaming, it is now the turn for the channel function to be
renamed and moved in the SC scope. channel_shutw_now() is replaced by
sc_schedule_shutdown(). The request channel is replaced by the front SC and
the response is replace by the back SC.
diff --git a/include/haproxy/channel.h b/include/haproxy/channel.h
index f71b592..994daf8 100644
--- a/include/haproxy/channel.h
+++ b/include/haproxy/channel.h
@@ -548,11 +548,6 @@
 	channel_erase(chn);
 }
 
-/* marks the channel as "shutdown" ASAP for writes */
-static inline void channel_shutw_now(struct channel *chn)
-{
-	chn_cons(chn)->flags |= SC_FL_SHUT_WANTED;
-}
 
 /* marks the channel as "shutdown" ASAP in both directions */
 static inline void channel_abort(struct channel *chn)
diff --git a/include/haproxy/sc_strm.h b/include/haproxy/sc_strm.h
index ae5861d..1c8c47f 100644
--- a/include/haproxy/sc_strm.h
+++ b/include/haproxy/sc_strm.h
@@ -420,4 +420,10 @@
 	sc->flags |= SC_FL_ABRT_WANTED;
 }
 
+/* Schedule a shutdown for the SC */
+static inline void sc_schedule_shutdown(struct stconn *sc)
+{
+	sc->flags |= SC_FL_SHUT_WANTED;
+}
+
 #endif /* _HAPROXY_SC_STRM_H */
diff --git a/src/cli.c b/src/cli.c
index abb65f3..7fefc3e 100644
--- a/src/cli.c
+++ b/src/cli.c
@@ -2361,7 +2361,7 @@
 
 	} else if (strcmp("quit", args[0]) == 0) {
 		sc_schedule_abort(s->scf);
-		channel_shutw_now(&s->res);
+		sc_schedule_shutdown(s->scf);
 		return argl; /* return the number of elements in the array */
 	} else if (strcmp(args[0], "operator") == 0) {
 		if (!pcli_has_level(s, ACCESS_LVL_OPER)) {
@@ -2640,7 +2640,7 @@
 
 		if (!(s->pcli_flags & PCLI_F_PAYLOAD)) {
 			/* we send only 1 command per request, and we write close after it */
-			channel_shutw_now(req);
+			sc_schedule_shutdown(s->scb);
 		} else {
 			pcli_write_prompt(s);
 		}
@@ -2695,7 +2695,7 @@
         if (chn_prod(req)->flags & SC_FL_SHUTR) {
                 /* There is no more request or a only a partial one and we
                  * receive a close from the client, we can leave */
-                channel_shutw_now(&s->res);
+		sc_schedule_shutdown(s->scf);
                 s->req.analysers &= ~AN_REQ_WAIT_CLI;
                 return 1;
         }
diff --git a/src/http_ana.c b/src/http_ana.c
index 26bd098..282cf8e 100644
--- a/src/http_ana.c
+++ b/src/http_ana.c
@@ -4274,7 +4274,7 @@
 
 			if (!(chn_cons(chn)->flags & (SC_FL_SHUTW|SC_FL_SHUT_WANTED))) {
 				sc_schedule_abort(s->scf);
-				channel_shutw_now(chn);
+				sc_schedule_shutdown(s->scb);
 			}
 		}
 		goto check_channel_flags;
@@ -4283,7 +4283,7 @@
 	if (txn->req.msg_state == HTTP_MSG_CLOSING) {
 	  http_msg_closing:
 		/* nothing else to forward, just waiting for the output buffer
-		 * to be empty and for the shutw_now to take effect.
+		 * to be empty and for the shut_wanted to take effect.
 		 */
 		if (channel_is_empty(chn)) {
 			txn->req.msg_state = HTTP_MSG_CLOSED;
@@ -4373,7 +4373,7 @@
 			 */
 			if (!(chn_cons(chn)->flags & (SC_FL_SHUTW|SC_FL_SHUT_WANTED))) {
 				sc_schedule_abort(s->scb);
-				channel_shutw_now(chn);
+				sc_schedule_shutdown(s->scf);
 			}
 		}
 		goto check_channel_flags;
@@ -4382,7 +4382,7 @@
 	if (txn->rsp.msg_state == HTTP_MSG_CLOSING) {
 	  http_msg_closing:
 		/* nothing else to forward, just waiting for the output buffer
-		 * to be empty and for the shutw_now to take effect.
+		 * to be empty and for the shut_wanted to take effect.
 		 */
 		if (channel_is_empty(chn)) {
 			txn->rsp.msg_state = HTTP_MSG_CLOSED;
diff --git a/src/stconn.c b/src/stconn.c
index 87529aa..8e1759e 100644
--- a/src/stconn.c
+++ b/src/stconn.c
@@ -511,11 +511,11 @@
 		return 0;
 
 	if (!channel_is_empty(sc_ic(sc))) {
-		/* the close to the write side cannot be forwarded now because
+		/* the shutdown cannot be forwarded now because
 		 * we should flush outgoing data first. But instruct the output
 		 * channel it should be done ASAP.
 		 */
-		channel_shutw_now(sc_oc(sc));
+		sc_schedule_shutdown(sc);
 		return 0;
 	}
 
@@ -1484,7 +1484,7 @@
 	if (sc_ep_test(sc, SE_FL_EOS)) {
 		/* we received a shutdown */
 		if (ic->flags & CF_AUTO_CLOSE)
-			channel_shutw_now(ic);
+			sc_schedule_shutdown(sc_opposite(sc));
 		sc_conn_read0(sc);
 		ret = 1;
 	}
@@ -1777,7 +1777,7 @@
 	if (sc_ep_test(sc, SE_FL_EOS) && !(sc->flags & SC_FL_SHUTR)) {
 		/* we received a shutdown */
 		if (ic->flags & CF_AUTO_CLOSE)
-			channel_shutw_now(ic);
+			sc_schedule_shutdown(sc_opposite(sc));
 		sc_conn_read0(sc);
 	}
 
diff --git a/src/stream.c b/src/stream.c
index 9ceffe3..44f8f80 100644
--- a/src/stream.c
+++ b/src/stream.c
@@ -2308,7 +2308,7 @@
 		}
 		else {
 			s->scb->state = SC_ST_CLO; /* shutw+ini = abort */
-			channel_shutw_now(req);        /* fix buffer flags upon abort */
+			sc_schedule_shutdown(scb);
 			sc_schedule_abort(scb);
 		}
 	}
@@ -2367,7 +2367,7 @@
 	if (unlikely((req->flags & CF_AUTO_CLOSE) && (scf->flags & SC_FL_SHUTR) &&
 		     !(scb->flags & (SC_FL_SHUTW|SC_FL_SHUT_WANTED)) &&
 		     (scb->state != SC_ST_CON || (s->be->options & PR_O_ABRT_CLOSE)))) {
-		channel_shutw_now(req);
+		sc_schedule_shutdown(scb);
 	}
 
 	/* shutdown(write) pending */
@@ -2489,7 +2489,7 @@
 	/* first, let's check if the response buffer needs to shutdown(write) */
 	if (unlikely((res->flags & CF_AUTO_CLOSE) && (scb->flags & SC_FL_SHUTR) &&
 		     !(scf->flags & (SC_FL_SHUTW|SC_FL_SHUT_WANTED)))) {
-		channel_shutw_now(res);
+		sc_schedule_shutdown(scf);
 	}
 
 	/* shutdown(write) pending */
@@ -2781,7 +2781,7 @@
 	if (stream->scb->flags & (SC_FL_SHUTW|SC_FL_SHUT_WANTED))
 		return;
 
-	channel_shutw_now(&stream->req);
+	sc_schedule_shutdown(stream->scb);
 	sc_schedule_abort(stream->scb);
 	stream->task->nice = 1024;
 	if (!(stream->flags & SF_ERR_MASK))