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curl

    1: #ifndef HEADER_CURL_SPLAY_H
    2: #define HEADER_CURL_SPLAY_H
    3: /***************************************************************************
    4:  *                                  _   _ ____  _
    5:  *  Project                     ___| | | |  _ \| |
    6:  *                             / __| | | | |_) | |
    7:  *                            | (__| |_| |  _ <| |___
    8:  *                             \___|\___/|_| \_\_____|
    9:  *
   10:  * Copyright (C) 1997 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
   11:  *
   12:  * This software is licensed as described in the file COPYING, which
   13:  * you should have received as part of this distribution. The terms
   14:  * are also available at https://curl.haxx.se/docs/copyright.html.
   15:  *
   16:  * You may opt to use, copy, modify, merge, publish, distribute and/or sell
   17:  * copies of the Software, and permit persons to whom the Software is
   18:  * furnished to do so, under the terms of the COPYING file.
   19:  *
   20:  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
   21:  * KIND, either express or implied.
   22:  *
   23:  ***************************************************************************/
   24: #include "curl_setup.h"
   25: #include "timeval.h"
   26: 
   27: struct Curl_tree {
   28:   struct Curl_tree *smaller; /* smaller node */
   29:   struct Curl_tree *larger;  /* larger node */
   30:   struct Curl_tree *samen;   /* points to the next node with identical key */
   31:   struct Curl_tree *samep;   /* points to the prev node with identical key */
   32:   struct curltime key;        /* this node's "sort" key */
   33:   void *payload;             /* data the splay code doesn't care about */
   34: };
   35: 
   36: struct Curl_tree *Curl_splay(struct curltime i,
   37:                              struct Curl_tree *t);
   38: 
   39: struct Curl_tree *Curl_splayinsert(struct curltime key,
   40:                                    struct Curl_tree *t,
   41:                                    struct Curl_tree *newnode);
   42: 
   43: #if 0
   44: struct Curl_tree *Curl_splayremove(struct curltime key,
   45:                                    struct Curl_tree *t,
   46:                                    struct Curl_tree **removed);
   47: #endif
   48: 
   49: struct Curl_tree *Curl_splaygetbest(struct curltime key,
   50:                                     struct Curl_tree *t,
   51:                                     struct Curl_tree **removed);
   52: 
   53: int Curl_splayremovebyaddr(struct Curl_tree *t,
   54:                            struct Curl_tree *removenode,
   55:                            struct Curl_tree **newroot);
   56: 
   57: #define Curl_splaycomparekeys(i,j) ( ((i.tv_sec)  < (j.tv_sec)) ? -1 : \
   58:                                    ( ((i.tv_sec)  > (j.tv_sec)) ?  1 : \
   59:                                    ( ((i.tv_usec) < (j.tv_usec)) ? -1 : \
   60:                                    ( ((i.tv_usec) > (j.tv_usec)) ?  1 : 0))))
   61: 
   62: #endif /* HEADER_CURL_SPLAY_H */