| 1 | #ifndef HEADER_CURL_SPLAY_H
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| 2 | #define HEADER_CURL_SPLAY_H
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| 3 | /***************************************************************************
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| 4 | * _ _ ____ _
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| 5 | * Project ___| | | | _ \| |
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| 6 | * / __| | | | |_) | |
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| 7 | * | (__| |_| | _ <| |___
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| 8 | * \___|\___/|_| \_\_____|
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| 9 | *
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| 10 | * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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| 11 | *
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| 12 | * This software is licensed as described in the file COPYING, which
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| 13 | * you should have received as part of this distribution. The terms
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| 14 | * are also available at https://curl.se/docs/copyright.html.
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| 15 | *
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| 16 | * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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| 17 | * copies of the Software, and permit persons to whom the Software is
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| 18 | * furnished to do so, under the terms of the COPYING file.
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| 19 | *
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| 20 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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| 21 | * KIND, either express or implied.
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| 22 | *
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| 23 | * SPDX-License-Identifier: curl
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| 24 | *
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| 25 | ***************************************************************************/
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| 26 | #include "curl_setup.h"
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| 27 | #include "timeval.h"
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| 28 |
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| 29 | /* only use function calls to access this struct */
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| 30 | struct Curl_tree {
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| 31 | struct Curl_tree *smaller; /* smaller node */
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| 32 | struct Curl_tree *larger; /* larger node */
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| 33 | struct Curl_tree *samen; /* points to the next node with identical key */
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| 34 | struct Curl_tree *samep; /* points to the prev node with identical key */
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| 35 | struct curltime key; /* this node's "sort" key */
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| 36 | void *ptr; /* data the splay code does not care about */
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| 37 | };
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| 38 |
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| 39 | struct Curl_tree *Curl_splay(struct curltime i,
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| 40 | struct Curl_tree *t);
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| 41 |
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| 42 | struct Curl_tree *Curl_splayinsert(struct curltime key,
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| 43 | struct Curl_tree *t,
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| 44 | struct Curl_tree *newnode);
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| 45 |
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| 46 | struct Curl_tree *Curl_splaygetbest(struct curltime key,
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| 47 | struct Curl_tree *t,
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| 48 | struct Curl_tree **removed);
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| 49 |
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| 50 | int Curl_splayremove(struct Curl_tree *t,
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| 51 | struct Curl_tree *removenode,
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| 52 | struct Curl_tree **newroot);
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| 53 |
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| 54 | /* set and get the custom payload for this tree node */
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| 55 | void Curl_splayset(struct Curl_tree *node, void *payload);
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| 56 | void *Curl_splayget(struct Curl_tree *node);
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| 57 |
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| 58 | #endif /* HEADER_CURL_SPLAY_H */
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