mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
109 lines
4.4 KiB
C
109 lines
4.4 KiB
C
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
|
* the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is Mozilla Communicator client code.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* Netscape Communications Corporation.
|
|
* Portions created by the Initial Developer are Copyright (C) 1998
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
* Simon Fraser <sfraser@netscape.com>
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either of the GNU General Public License Version 2 or later (the "GPL"),
|
|
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
|
|
#ifndef __PATRICIA__
|
|
#define __PATRICIA__
|
|
|
|
/*---------------------------------------------------------------------
|
|
|
|
Patricia
|
|
|
|
D.R. Morrison's "Practical Algorithm To Retrieve Information
|
|
Coded in Alphanumeric"
|
|
|
|
See patricia.c for more information.
|
|
|
|
Ref: Donald R. Morrison. PATRICIA -- practical algorithm to retrieve
|
|
information coded in alphanumeric. Journal of the ACM, 15(4):514-534,
|
|
October 1968
|
|
|
|
See SedgeWick, R. Algorithms, 2nd Ed. (1988) for implemenation details.
|
|
|
|
-----------------------------------------------------------------------*/
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/* A type which you should use externally to refer to a Patricia tree. You
|
|
application should treat the tree as an opaque data structure, accessed
|
|
only through those routines whose prototypes are declared below.
|
|
|
|
All externally-visible routines start with 'Patricia'. Internal routines
|
|
are declared static in the .c file, and should not be used elsewhere.
|
|
*/
|
|
typedef void *PatriciaTreeRef;
|
|
|
|
|
|
/* Declarations for user-supplied functions, which are called on replacing
|
|
nodes (i.e. when inserting a node with a duplicate key, on traversing
|
|
the tree, and on freeing nodes. A non-zero return value indicates failure.
|
|
*/
|
|
typedef int (*NodeReplaceFunction) (void* *nodeDataPtr, unsigned char *key, void *replaceData, void *refCon);
|
|
typedef int (*NodeTraverseFunction) (void *nodeData, unsigned char *key, void *arg, void *refCon);
|
|
typedef int (*NodeFreeFunction) (void *nodeData, unsigned char *key, void *refCon);
|
|
|
|
/* The creation and destruction functions for allocating and freeing a tree.
|
|
PatriciaInitTree() allocates space for a tree and initializes it.
|
|
PatriciaFreeTree() frees the tree nodes and the tree itself. It does *NOT* free
|
|
the data associated with each node, unless you pass a NodeFreeFunction that
|
|
does this.
|
|
*/
|
|
PatriciaTreeRef PatriciaInitTree(long numKeyBits);
|
|
void PatriciaFreeTree(PatriciaTreeRef treeRef, NodeFreeFunction freeFunc, void *refCon);
|
|
|
|
/* Functions for inserting nodes, searching for a node with a given key,
|
|
and traversing the tree. Traversal involves visiting every node in the tree,
|
|
but does not guarantee that the nodes are visited in a particular order.
|
|
*/
|
|
int PatriciaInsert(PatriciaTreeRef treeRef, NodeReplaceFunction replaceFunc, const unsigned char *key, void *data, void *refCon);
|
|
int PatriciaSearch(PatriciaTreeRef treeRef, const unsigned char *key, void **data);
|
|
int PatriciaTraverse(PatriciaTreeRef treeRef, NodeTraverseFunction traverseFunc, void *arg, void *refCon);
|
|
|
|
/* An accessor function that returns the total number of nodes in the tree
|
|
*/
|
|
long PatriciaGetNumNodes(PatriciaTreeRef treeRef);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* __PATRICIA__ */
|
|
|