diff options
Diffstat (limited to 'lib/curl_splay.h')
| -rw-r--r-- | lib/curl_splay.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/lib/curl_splay.h b/lib/curl_splay.h new file mode 100644 index 000000000..5f9ef24cc --- /dev/null +++ b/lib/curl_splay.h @@ -0,0 +1,66 @@ +#ifndef HEADER_CURL_SPLAY_H +#define HEADER_CURL_SPLAY_H +/*************************************************************************** + * _ _ ____ _ + * Project ___| | | | _ \| | + * / __| | | | |_) | | + * | (__| |_| | _ <| |___ + * \___|\___/|_| \_\_____| + * + * Copyright (C) 1997 - 2011, 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. + * + ***************************************************************************/ +#include "curl_setup.h" + +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 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 */ |