freebsd-dev/usr.bin/make/hash.h
Hartmut Brandt 7a2029bac2 Clean up include files and file including. Split nonints.h into pieces
that get included just where they are needed. All headers include the
headers that they need to compile (just with an empty .c file). Sort
includes alphabetically where apropriate and fix some duplicate commenting
for struct Job, struct GNode and struct Shell by removing one version and
inlining the comments into the structure declaration (the comments have been
somewhat outdated).

This patch does not contain functional changes (checked with md5).

Submitted by:	Max Okumoto <okumoto@ucsd.edu>
2005-02-01 10:50:37 +00:00

104 lines
3.7 KiB
C

/*-
* Copyright (c) 1988, 1989, 1990, 1993
* The Regents of the University of California. All rights reserved.
* Copyright (c) 1988, 1989 by Adam de Boor
* Copyright (c) 1989 by Berkeley Softworks
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Adam de Boor.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)hash.h 8.1 (Berkeley) 6/6/93
* $FreeBSD$
*/
#ifndef hash_h_f6312f46
#define hash_h_f6312f46
/* hash.h --
*
* This file contains definitions used by the hash module,
* which maintains hash tables.
*/
#include "sprite.h"
/*
* The following defines one entry in the hash table.
*/
typedef struct Hash_Entry {
struct Hash_Entry *next; /* Link entries within same bucket. */
void *clientData; /* Data associated with key. */
unsigned namehash; /* hash value of key */
char name[1]; /* key string */
} Hash_Entry;
typedef struct Hash_Table {
struct Hash_Entry **bucketPtr; /* Buckets in the table */
int size; /* Actual size of array. */
int numEntries; /* Number of entries in the table. */
int mask; /* Used to select bits for hashing. */
} Hash_Table;
/*
* The following structure is used by the searching routines
* to record where we are in the search.
*/
typedef struct Hash_Search {
const Hash_Table *tablePtr; /* Table being searched. */
int nextIndex; /* Next bucket to check */
Hash_Entry *hashEntryPtr; /* Next entry in current bucket */
} Hash_Search;
/*
* Macros.
*/
/*
* void *Hash_GetValue(const Hash_Entry *h)
*/
#define Hash_GetValue(h) ((h)->clientData)
/*
* Hash_SetValue(Hash_Entry *h, void *val);
*/
#define Hash_SetValue(h, val) ((h)->clientData = (val))
void Hash_InitTable(Hash_Table *, int);
void Hash_DeleteTable(Hash_Table *);
Hash_Entry *Hash_FindEntry(const Hash_Table *, const char *);
Hash_Entry *Hash_CreateEntry(Hash_Table *, const char *, Boolean *);
void Hash_DeleteEntry(Hash_Table *, Hash_Entry *);
Hash_Entry *Hash_EnumFirst(const Hash_Table *, Hash_Search *);
Hash_Entry *Hash_EnumNext(Hash_Search *);
#endif /* hash_h_f6312f46 */