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curl/lib/splay.h
Daniel Stenberg 4dee50b9c8 timeval: struct curltime is a struct timeval replacement
... to make all libcurl internals able to use the same data types for
the struct members. The timeval struct differs subtly on several
platforms so it makes it cumbersome to use everywhere.

Ref: #1652
Closes #1693
2017-07-28 15:51:25 +02:00

69 lines
2.8 KiB
C

#ifndef HEADER_CURL_SPLAY_H
#define HEADER_CURL_SPLAY_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1997 - 2017, 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))))
#ifdef DEBUGBUILD
void Curl_splayprint(struct Curl_tree * t, int d, char output);
#else
#define Curl_splayprint(x,y,z) Curl_nop_stmt
#endif
#endif /* HEADER_CURL_SPLAY_H */