un-nest curl

curl-8.15.0/lib/hash.h

@@ -0,0 +1,111 @@
+#ifndef HEADER_CURL_HASH_H
+#define HEADER_CURL_HASH_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>
+
+#include "llist.h"
+
+/* Hash function prototype */
+typedef size_t (*hash_function) (void *key,
+                                 size_t key_length,
+                                 size_t slots_num);
+
+/*
+   Comparator function prototype. Compares two keys.
+*/
+typedef size_t (*comp_function) (void *key1,
+                                 size_t key1_len,
+                                 void *key2,
+                                 size_t key2_len);
+
+typedef void (*Curl_hash_dtor)(void *);
+
+typedef void (*Curl_hash_elem_dtor)(void *key, size_t key_len, void *p);
+
+struct Curl_hash_element {
+  struct Curl_hash_element *next;
+  void   *ptr;
+  Curl_hash_elem_dtor dtor;
+  size_t key_len;
+  char   key[1]; /* allocated memory following the struct */
+};
+
+struct Curl_hash {
+  struct Curl_hash_element **table;
+
+  /* Hash function to be used for this hash table */
+  hash_function hash_func;
+  /* Comparator function to compare keys */
+  comp_function comp_func;
+  /* General element construct, unless element itself carries one */
+  Curl_hash_dtor   dtor;
+  size_t slots;
+  size_t size;
+#ifdef DEBUGBUILD
+  int init;
+#endif
+};
+
+struct Curl_hash_iterator {
+  struct Curl_hash *hash;
+  size_t slot_index;
+  struct Curl_hash_element *current;
+#ifdef DEBUGBUILD
+  int init;
+#endif
+};
+
+void Curl_hash_init(struct Curl_hash *h,
+                    size_t slots,
+                    hash_function hfunc,
+                    comp_function comparator,
+                    Curl_hash_dtor dtor);
+
+void *Curl_hash_add(struct Curl_hash *h, void *key, size_t key_len, void *p);
+void *Curl_hash_add2(struct Curl_hash *h, void *key, size_t key_len, void *p,
+                     Curl_hash_elem_dtor dtor);
+int Curl_hash_delete(struct Curl_hash *h, void *key, size_t key_len);
+void *Curl_hash_pick(struct Curl_hash *, void *key, size_t key_len);
+
+void Curl_hash_destroy(struct Curl_hash *h);
+size_t Curl_hash_count(struct Curl_hash *h);
+void Curl_hash_clean(struct Curl_hash *h);
+void Curl_hash_clean_with_criterium(struct Curl_hash *h, void *user,
+                                    int (*comp)(void *, void *));
+size_t Curl_hash_str(void *key, size_t key_length, size_t slots_num);
+size_t curlx_str_key_compare(void *k1, size_t key1_len, void *k2,
+                             size_t key2_len);
+void Curl_hash_start_iterate(struct Curl_hash *hash,
+                             struct Curl_hash_iterator *iter);
+struct Curl_hash_element *
+Curl_hash_next_element(struct Curl_hash_iterator *iter);
+
+void Curl_hash_print(struct Curl_hash *h,
+                     void (*func)(void *));
+
+#endif /* HEADER_CURL_HASH_H */