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#ifndef __SPLAY_H
#define __SPLAY_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1997 - 2008, 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 http://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.
*
* $Id$
***************************************************************************/
struct Curl_tree {
struct Curl_tree *smaller; /* smaller node */
struct Curl_tree *larger; /* larger node */
struct Curl_tree *same; /* points to a node with identical key */
struct timeval key; /* this node's "sort" key */
void *payload; /* data the splay code doesn't care about */
};
struct Curl_tree *Curl_splay(struct timeval i,
struct Curl_tree *t);
struct Curl_tree *Curl_splayinsert(struct timeval key,
struct Curl_tree *t,
struct Curl_tree *newnode);
#if 0
struct Curl_tree *Curl_splayremove(struct timeval key,
struct Curl_tree *t,
struct Curl_tree **removed);
#endif
struct Curl_tree *Curl_splaygetbest(struct timeval 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 ))))
#ifdef CURLDEBUG
void Curl_splayprint(struct Curl_tree * t, int d, char output);
#else
#define Curl_splayprint(x,y,z)
#endif
#endif
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