/usr/include/mapserver/maphash.h is in libmapserver-dev 7.0.7-1build2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* $Id$
*
* Project: MapServer
* Purpose: Declarations for the hashTableObj and related stuff.
* Author: Sean Gillies, sgillies@frii.com
*
******************************************************************************
* Copyright (c) 1996-2005 Regents of the University of Minnesota.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies of this Software or works derived from this Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
****************************************************************************/
#ifndef MAPHASH__H
#define MAPHASH__H
#ifdef __cplusplus
extern "C" {
#endif
#if defined(_WIN32) && !defined(__CYGWIN__)
# define MS_DLL_EXPORT __declspec(dllexport)
#else
#define MS_DLL_EXPORT
#endif
#define MS_HASHSIZE 41
/* =========================================================================
* Structs
* ========================================================================= */
#ifndef SWIG
struct hashObj {
struct hashObj *next; /* pointer to next item */
char *key; /* string key that is hashed */
char *data; /* string stored in this item */
};
#endif /*SWIG*/
typedef struct {
#ifndef SWIG
struct hashObj **items; /* the hash table */
#endif
#ifdef SWIG
%immutable;
#endif /*SWIG*/
int numitems; /* number of items */
#ifdef SWIG
%mutable;
#endif /*SWIG*/
} hashTableObj;
/* =========================================================================
* Functions
* ========================================================================= */
#ifndef SWIG
/* msCreateHashTable - create a hash table
* ARGS:
* None
* RETURNS:
* New hash table
*/
MS_DLL_EXPORT hashTableObj *msCreateHashTable( void );
/* For use in mapfile.c with hashTableObj structure members */
MS_DLL_EXPORT int initHashTable( hashTableObj *table );
/* msFreeHashTable - free allocated memory
* ARGS:
* table - target hash table
* RETURNS:
* None
*/
MS_DLL_EXPORT void msFreeHashTable( hashTableObj *table );
/* Free only the items for hashTableObj structure members (metadata, &c) */
MS_DLL_EXPORT void msFreeHashItems( hashTableObj *table );
/* msInsertHashTable - insert new item
* ARGS:
* table - the target hash table
* key - key string for new item
* value - data string for new item
* RETURNS:
* pointer to the new item or NULL
* EXCEPTIONS:
* raise MS_HASHERR on failure
*/
MS_DLL_EXPORT struct hashObj *msInsertHashTable( hashTableObj *table,
const char *key,
const char *value );
/* msLookupHashTable - get the value of an item by its key
* ARGS:
* table - the target hash table
* key - key string of item
* RETURNS:
* string value of item
*/
MS_DLL_EXPORT char *msLookupHashTable( hashTableObj *table, const char *key);
/* msRemoveHashTable - remove item from table at key
* ARGS:
* table - target hash table
* key - key string
* RETURNS:
* MS_SUCCESS or MS_FAILURE
*/
MS_DLL_EXPORT int msRemoveHashTable( hashTableObj *table, const char *key);
/* msFirstKeyFromHashTable - get key of first item
* ARGS:
* table - target hash table
* RETURNS:
* first key as a string
*/
MS_DLL_EXPORT const char *msFirstKeyFromHashTable( hashTableObj *table );
/* msNextKeyFromHashTable - get next key
* ARGS:
* table - target hash table
* prevkey - the previous key
* RETURNS:
* the key of the item of following prevkey as a string
*/
MS_DLL_EXPORT const char *msNextKeyFromHashTable( hashTableObj *table,
const char *prevkey );
/* msHashIsEmpty - get next key
* ARGS:
* table - target hash table
* RETURNS:
* MS_TRUE if the table is empty and MS_FALSE if the table has items
*/
MS_DLL_EXPORT int msHashIsEmpty( hashTableObj* table );
#endif /*SWIG*/
#ifdef __cplusplus
}
#endif
#endif /* MAPHASH__H */
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