2 files changed, 13 insertions, 0 deletions
diff --git a/deps/nghttp2/lib/includes/nghttp2/nghttp2.h b/deps/nghttp2/lib/includes/nghttp2/nghttp2.h
index 159010040c..848ef066be 100644
--- a/deps/nghttp2/lib/includes/nghttp2/nghttp2.h
+++ b/deps/nghttp2/lib/includes/nghttp2/nghttp2.h
@@ -470,6 +470,15 @@ NGHTTP2_EXTERN void nghttp2_rcbuf_decref(nghttp2_rcbuf *rcbuf);
 NGHTTP2_EXTERN nghttp2_vec nghttp2_rcbuf_get_buf(nghttp2_rcbuf *rcbuf);
 
 /**
+ * @function
+ *
+ * Returns 1 if the underlying buffer is statically allocated,
+ * and 0 otherwise. This can be useful for language bindings that wish to avoid
+ * creating duplicate strings for these buffers.
+ */
+NGHTTP2_EXTERN int nghttp2_rcbuf_is_static(const nghttp2_rcbuf *rcbuf);
+
+/**
  * @enum
  *
  * The flags for header field name/value pair.
diff --git a/deps/nghttp2/lib/nghttp2_rcbuf.c b/deps/nghttp2/lib/nghttp2_rcbuf.c
index 24f561af97..7e7814d2d3 100644
--- a/deps/nghttp2/lib/nghttp2_rcbuf.c
+++ b/deps/nghttp2/lib/nghttp2_rcbuf.c
@@ -96,3 +96,7 @@ nghttp2_vec nghttp2_rcbuf_get_buf(nghttp2_rcbuf *rcbuf) {
   nghttp2_vec res = {rcbuf->base, rcbuf->len};
   return res;
 }
+
+int nghttp2_rcbuf_is_static(const nghttp2_rcbuf *rcbuf) {
+  return rcbuf->ref == -1;
+}