MINOR: mux-h2: provide a "show_sd" helper to output stream debugging info
With this, it now becomes possible to see the state of each H2 stream from
"show sess all". Lines are still too long and need to be split, but that's
for another patch.
diff --git a/src/mux_h2.c b/src/mux_h2.c
index 4d2a5a9..f67d69c 100644
--- a/src/mux_h2.c
+++ b/src/mux_h2.c
@@ -6849,6 +6849,28 @@
return ret;
}
+/* for debugging with CLI's "show sess" command. May emit multiple lines, each
+ * new one being prefixed with <pfx>, if <pfx> is not NULL, otherwise a single
+ * line is used. Each field starts with a space so it's safe to print it after
+ * existing fields.
+ */
+static int h2_show_sd(struct buffer *msg, struct sedesc *sd, const char *pfx)
+{
+ struct h2s *h2s = sd->se;
+ int ret = 0;
+
+ if (!h2s)
+ return ret;
+
+ chunk_appendf(msg, " h2s=%p", h2s);
+ ret |= h2_dump_h2s_info(msg, h2s);
+ if (pfx)
+ chunk_appendf(msg, "\n%s", pfx);
+ chunk_appendf(msg, " h2c=%p", h2s->h2c);
+ ret |= h2_dump_h2c_info(msg, h2s->h2c);
+ return ret;
+}
+
/* Migrate the the connection to the current thread.
* Return 0 if successful, non-zero otherwise.
* Expected to be called with the old thread lock held.
@@ -7000,6 +7022,7 @@
.shutw = h2_shutw,
.ctl = h2_ctl,
.show_fd = h2_show_fd,
+ .show_sd = h2_show_sd,
.takeover = h2_takeover,
.flags = MX_FL_HTX|MX_FL_HOL_RISK|MX_FL_NO_UPG,
.name = "H2",