init repo.

third_party/curl/lib/llist.h

@@ -0,0 +1,54 @@
+#ifndef HEADER_CURL_LLIST_H
+#define HEADER_CURL_LLIST_H
+/***************************************************************************
+ *                                  _   _ ____  _
+ *  Project                     ___| | | |  _ \| |
+ *                             / __| | | | |_) | |
+ *                            | (__| |_| |  _ <| |___
+ *                             \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 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.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.
+ *
+ * SPDX-License-Identifier: curl
+ *
+ ***************************************************************************/
+
+#include "curl_setup.h"
+#include <stddef.h>
+
+typedef void (*Curl_llist_dtor)(void *, void *);
+
+struct Curl_llist_element {
+  void *ptr;
+  struct Curl_llist_element *prev;
+  struct Curl_llist_element *next;
+};
+
+struct Curl_llist {
+  struct Curl_llist_element *head;
+  struct Curl_llist_element *tail;
+  Curl_llist_dtor dtor;
+  size_t size;
+};
+
+void Curl_llist_init(struct Curl_llist *, Curl_llist_dtor);
+void Curl_llist_insert_next(struct Curl_llist *, struct Curl_llist_element *,
+                            const void *, struct Curl_llist_element *node);
+void Curl_llist_append(struct Curl_llist *,
+                       const void *, struct Curl_llist_element *node);
+void Curl_llist_remove(struct Curl_llist *, struct Curl_llist_element *,
+                       void *);
+size_t Curl_llist_count(struct Curl_llist *);
+void Curl_llist_destroy(struct Curl_llist *, void *);
+#endif /* HEADER_CURL_LLIST_H */