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Diffstat (limited to 'mesalib/src/mesa/shader/hash_table.h')
-rw-r--r-- | mesalib/src/mesa/shader/hash_table.h | 117 |
1 files changed, 0 insertions, 117 deletions
diff --git a/mesalib/src/mesa/shader/hash_table.h b/mesalib/src/mesa/shader/hash_table.h deleted file mode 100644 index 7b302f5db..000000000 --- a/mesalib/src/mesa/shader/hash_table.h +++ /dev/null @@ -1,117 +0,0 @@ -/* - * Copyright © 2008 Intel Corporation - * - * 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 (including the next - * paragraph) shall be included in all copies or substantial portions of the - * 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. - */ - -/** - * \file hash_table.h - * \brief Implementation of a generic, opaque hash table data type. - * - * \author Ian Romanick <ian.d.romanick@intel.com> - */ - -#ifndef HASH_TABLE_H -#define HASH_TABLE_H - -#include <string.h> - -struct hash_table; - -typedef unsigned (*hash_func_t)(const void *key); -typedef int (*hash_compare_func_t)(const void *key1, const void *key2); - -/** - * Hash table constructor - * - * Creates a hash table with the specified number of buckets. The supplied - * \c hash and \c compare routines are used when adding elements to the table - * and when searching for elements in the table. - * - * \param num_buckets Number of buckets (bins) in the hash table. - * \param hash Function used to compute hash value of input keys. - * \param compare Function used to compare keys. - */ -extern struct hash_table *hash_table_ctor(unsigned num_buckets, - hash_func_t hash, hash_compare_func_t compare); - - -/** - * Release all memory associated with a hash table - * - * \warning - * This function cannot release memory occupied either by keys or data. - */ -extern void hash_table_dtor(struct hash_table *ht); - - -/** - * Flush all entries from a hash table - * - * \param ht Table to be cleared of its entries. - */ -extern void hash_table_clear(struct hash_table *ht); - - -/** - * Search a hash table for a specific element - * - * \param ht Table to be searched - * \param key Key of the desired element - * - * \return - * The \c data value supplied to \c hash_table_insert when the element with - * the matching key was added. If no matching key exists in the table, - * \c NULL is returned. - */ -extern void *hash_table_find(struct hash_table *ht, const void *key); - - -/** - * Add an element to a hash table - */ -extern void hash_table_insert(struct hash_table *ht, void *data, - const void *key); - - -/** - * Compute hash value of a string - * - * Computes the hash value of a string using the DJB2 algorithm developed by - * Professor Daniel J. Bernstein. It was published on comp.lang.c once upon - * a time. I was unable to find the original posting in the archives. - * - * \param key Pointer to a NUL terminated string to be hashed. - * - * \sa hash_table_string_compare - */ -extern unsigned hash_table_string_hash(const void *key); - - -/** - * Compare two strings used as keys - * - * This is just a macro wrapper around \c strcmp. - * - * \sa hash_table_string_hash - */ -#define hash_table_string_compare ((hash_compare_func_t) strcmp) - -#endif /* HASH_TABLE_H */ |