MINOR: mux-h1: remove the now unneeded h1s->cs

There is always an endpoint link in a stream, and this endpoint link
contains a pointer to the conn_stream it's attached to, so the one in
the h1 stream is always duplicate now. Let's always use endp->cs
instead and get rid of it.

diff --git a/src/mux_h1.c b/src/mux_h1.c
index 31a8a47ae03e1eaf95e942bb377e38a5b0daa8c4..e74e0fb18566b097f313b51ad6ec644cf8983c9c 100644 (file)
--- a/src/mux_h1.c
+++ b/src/mux_h1.c
@@ -118,7 +118,6 @@ struct h1c {
 /* H1 stream descriptor */
 struct h1s {
        struct h1c *h1c;
-       struct conn_stream *cs;
        struct cs_endpoint *endp;
        uint32_t flags;                /* Connection flags: H1S_F_* */
 
@@ -430,8 +429,8 @@ static void h1_trace(enum trace_level level, uint64_t mask, const struct trace_s
                chunk_appendf(&trace_buf, " h1s=%p(0x%08x)", h1s, h1s->flags);
                if (h1s->endp)
                        chunk_appendf(&trace_buf, " endp=%p(0x%08x)", h1s->endp, h1s->endp->flags);
-               if (h1s->cs)
-                       chunk_appendf(&trace_buf, " cs=%p(0x%08x)", h1s->cs, h1s->cs->flags);
+               if (h1s->endp && h1s->endp->cs)
+                       chunk_appendf(&trace_buf, " cs=%p(0x%08x)", h1s->endp->cs, h1s->endp->cs->flags);
        }
 
        if (src->verbosity == H1_VERB_MINIMAL)
@@ -727,8 +726,7 @@ static struct conn_stream *h1s_new_cs(struct h1s *h1s, struct buffer *input)
        if (h1s->req.flags & H1_MF_UPG_WEBSOCKET)
                h1s->endp->flags |= CS_EP_WEBSOCKET;
 
-       h1s->cs = cs_new_from_mux(h1s->endp, h1c->conn->owner, input);
-       if (!h1s->cs) {
+       if (!cs_new_from_mux(h1s->endp, h1c->conn->owner, input)) {
                TRACE_ERROR("CS allocation failure", H1_EV_STRM_NEW|H1_EV_STRM_END|H1_EV_STRM_ERR, h1c->conn, h1s);
                goto err;
        }
@@ -738,7 +736,7 @@ static struct conn_stream *h1s_new_cs(struct h1s *h1s, struct buffer *input)
 
        h1c->flags = (h1c->flags & ~H1C_F_ST_EMBRYONIC) | H1C_F_ST_ATTACHED | H1C_F_ST_READY;
        TRACE_LEAVE(H1_EV_STRM_NEW, h1c->conn, h1s);
-       return h1s->cs;
+       return h1s->endp->cs;
 
   err:
        TRACE_DEVEL("leaving on error", H1_EV_STRM_NEW|H1_EV_STRM_ERR, h1c->conn, h1s);
@@ -749,14 +747,14 @@ static struct conn_stream *h1s_upgrade_cs(struct h1s *h1s, struct buffer *input)
 {
        TRACE_ENTER(H1_EV_STRM_NEW, h1s->h1c->conn, h1s);
 
-       if (stream_upgrade_from_cs(h1s->cs, input) < 0) {
+       if (stream_upgrade_from_cs(h1s->endp->cs, input) < 0) {
                TRACE_ERROR("stream upgrade failure", H1_EV_STRM_NEW|H1_EV_STRM_END|H1_EV_STRM_ERR, h1s->h1c->conn, h1s);
                goto err;
        }
 
        h1s->h1c->flags |= H1C_F_ST_READY;
        TRACE_LEAVE(H1_EV_STRM_NEW, h1s->h1c->conn, h1s);
-       return h1s->cs;
+       return h1s->endp->cs;
 
   err:
        TRACE_DEVEL("leaving on error", H1_EV_STRM_NEW|H1_EV_STRM_ERR, h1s->h1c->conn, h1s);
@@ -777,7 +775,6 @@ static struct h1s *h1s_new(struct h1c *h1c)
        h1s->h1c = h1c;
        h1c->h1s = h1s;
        h1s->sess = NULL;
-       h1s->cs = NULL;
        h1s->endp = NULL;
        h1s->flags = H1S_F_WANT_KAL;
        h1s->subs = NULL;
@@ -818,7 +815,6 @@ static struct h1s *h1c_frt_stream_new(struct h1c *h1c, struct conn_stream *cs, s
        if (cs) {
                if (cs_attach_mux(cs, h1s, h1c->conn) < 0)
                        goto fail;
-               h1s->cs = cs;
                h1s->endp = cs->endp;
        }
        else {
@@ -860,7 +856,6 @@ static struct h1s *h1c_bck_stream_new(struct h1c *h1c, struct conn_stream *cs, s
                goto fail;
 
        h1s->flags |= H1S_F_RX_BLK;
-       h1s->cs = cs;
        h1s->endp = cs->endp;
        h1s->sess = sess;
 
@@ -1417,11 +1412,11 @@ static void h1_capture_bad_message(struct h1c *h1c, struct h1s *h1s,
        struct proxy *other_end;
        union error_snapshot_ctx ctx;
 
-       if ((h1c->flags & H1C_F_ST_ATTACHED) && cs_strm(h1s->cs)) {
+       if ((h1c->flags & H1C_F_ST_ATTACHED) && cs_strm(h1s->endp->cs)) {
                if (sess == NULL)
-                       sess = __cs_strm(h1s->cs)->sess;
+                       sess = __cs_strm(h1s->endp->cs)->sess;
                if (!(h1m->flags & H1_MF_RESP))
-                       other_end = __cs_strm(h1s->cs)->be;
+                       other_end = __cs_strm(h1s->endp->cs)->be;
                else
                        other_end = sess->fe;
        } else
@@ -1891,7 +1886,7 @@ static size_t h1_process_demux(struct h1c *h1c, struct buffer *buf, size_t count
 
                if (!(h1c->flags & H1C_F_ST_ATTACHED)) {
                        TRACE_DEVEL("request headers fully parsed, create and attach the CS", H1_EV_RX_DATA, h1c->conn, h1s);
-                       BUG_ON(h1s->cs);
+                       BUG_ON(h1s->endp->cs);
                        if (!h1s_new_cs(h1s, buf)) {
                                h1c->flags |= H1C_F_ST_ERROR;
                                goto err;
@@ -1899,7 +1894,7 @@ static size_t h1_process_demux(struct h1c *h1c, struct buffer *buf, size_t count
                }
                else {
                        TRACE_DEVEL("request headers fully parsed, upgrade the inherited CS", H1_EV_RX_DATA, h1c->conn, h1s);
-                       BUG_ON(h1s->cs == NULL);
+                       BUG_ON(h1s->endp->cs == NULL);
                        if (!h1s_upgrade_cs(h1s, buf)) {
                                h1c->flags |= H1C_F_ST_ERROR;
                                TRACE_ERROR("H1S upgrade failure", H1_EV_RX_DATA|H1_EV_H1S_ERR, h1c->conn, h1s);
@@ -1908,7 +1903,7 @@ static size_t h1_process_demux(struct h1c *h1c, struct buffer *buf, size_t count
                }
        }
 
-       /* Here h1s->cs is always defined */
+       /* Here h1s->endp->cs is always defined */
        if (!(h1m->flags & H1_MF_CHNK) && (h1m->state == H1_MSG_DATA || (h1m->state == H1_MSG_TUNNEL))) {
                TRACE_STATE("notify the mux can use splicing", H1_EV_RX_DATA|H1_EV_RX_BODY, h1c->conn, h1s);
                h1s->endp->flags |= CS_EP_MAY_SPLICE;
@@ -2624,9 +2619,9 @@ static void h1_alert(struct h1s *h1s)
                h1_wake_stream_for_recv(h1s);
                h1_wake_stream_for_send(h1s);
        }
-       else if (h1s->cs && h1s->cs->data_cb->wake != NULL) {
+       else if (h1s->endp->cs && h1s->endp->cs->data_cb->wake != NULL) {
                TRACE_POINT(H1_EV_STRM_WAKE, h1s->h1c->conn, h1s);
-               h1s->cs->data_cb->wake(h1s->cs);
+               h1s->endp->cs->data_cb->wake(h1s->endp->cs);
        }
 }
 
@@ -3345,7 +3340,7 @@ static struct conn_stream *h1_get_first_cs(const struct connection *conn)
        struct h1s *h1s = h1c->h1s;
 
        if (h1s)
-               return h1s->cs;
+               return h1s->endp->cs;
 
        return NULL;
 }
@@ -3378,7 +3373,6 @@ static void h1_detach(struct conn_stream *cs)
 
        sess = h1s->sess;
        h1c = h1s->h1c;
-       h1s->cs = NULL;
 
        sess->accept_date = date;
        sess->tv_accept   = now;
@@ -3917,7 +3911,7 @@ static int h1_show_fd(struct buffer *msg, struct connection *conn)
                        chunk_appendf(msg, " .endp.flg=0x%08x", h1s->endp->flags);
                        if (!(h1s->endp->flags & CS_EP_ORPHAN))
                                chunk_appendf(msg, " .cs.flg=0x%08x .cs.app=%p",
-                                             h1s->cs->flags, h1s->cs->app);
+                                             h1s->endp->cs->flags, h1s->endp->cs->app);
                }
                chunk_appendf(&trash, " .subs=%p", h1s->subs);
                if (h1s->subs) {