--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/curl/lib/splay.h	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,62 @@
+#ifndef HEADER_CURL_SPLAY_H
+#define HEADER_CURL_SPLAY_H
+/***************************************************************************
+ *                                  _   _ ____  _
+ *  Project                     ___| | | |  _ \| |
+ *                             / __| | | | |_) | |
+ *                            | (__| |_| |  _ <| |___
+ *                             \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1997 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
+ *
+ * This software is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution. The terms
+ * are also available at https://curl.haxx.se/docs/copyright.html.
+ *
+ * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+ * copies of the Software, and permit persons to whom the Software is
+ * furnished to do so, under the terms of the COPYING file.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ***************************************************************************/
+#include "curl_setup.h"
+#include "timeval.h"
+
+struct Curl_tree {
+  struct Curl_tree *smaller; /* smaller node */
+  struct Curl_tree *larger;  /* larger node */
+  struct Curl_tree *samen;   /* points to the next node with identical key */
+  struct Curl_tree *samep;   /* points to the prev node with identical key */
+  struct curltime key;        /* this node's "sort" key */
+  void *payload;             /* data the splay code doesn't care about */
+};
+
+struct Curl_tree *Curl_splay(struct curltime i,
+                             struct Curl_tree *t);
+
+struct Curl_tree *Curl_splayinsert(struct curltime key,
+                                   struct Curl_tree *t,
+                                   struct Curl_tree *newnode);
+
+#if 0
+struct Curl_tree *Curl_splayremove(struct curltime key,
+                                   struct Curl_tree *t,
+                                   struct Curl_tree **removed);
+#endif
+
+struct Curl_tree *Curl_splaygetbest(struct curltime key,
+                                    struct Curl_tree *t,
+                                    struct Curl_tree **removed);
+
+int Curl_splayremovebyaddr(struct Curl_tree *t,
+                           struct Curl_tree *removenode,
+                           struct Curl_tree **newroot);
+
+#define Curl_splaycomparekeys(i,j) ( ((i.tv_sec)  < (j.tv_sec)) ? -1 : \
+                                   ( ((i.tv_sec)  > (j.tv_sec)) ?  1 : \
+                                   ( ((i.tv_usec) < (j.tv_usec)) ? -1 : \
+                                   ( ((i.tv_usec) > (j.tv_usec)) ?  1 : 0))))
+
+#endif /* HEADER_CURL_SPLAY_H */