68 lines
2.3 KiB
C
68 lines
2.3 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2015 Nuxi, https://nuxi.nl/
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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//__FBSDID("$FreeBSD: head/lib/libc/stdlib/hcreate.c 326193 2017-11-25 17:12:48Z
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//pfg $");
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#include "search.h"
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#include <stdbool.h>
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#include <stddef.h>
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/*
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* Thread unsafe interface: use a single process-wide hash table and
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* forward calls to *_r() functions.
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*/
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static struct hsearch_data global_hashtable;
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static bool global_hashtable_initialized = false;
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int hcreate(size_t nel) { return (1); }
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void hdestroy(void) {
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/* Destroy global hash table if present. */
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if (global_hashtable_initialized) {
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hdestroy_r(&global_hashtable);
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global_hashtable_initialized = false;
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}
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}
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ENTRY *hsearch(ENTRY item, ACTION action) {
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ENTRY *retval;
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/* Create global hash table if needed. */
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if (!global_hashtable_initialized) {
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if (hcreate_r(0, &global_hashtable) == 0)
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return (NULL);
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global_hashtable_initialized = true;
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}
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if (hsearch_r(item, action, &retval, &global_hashtable) == 0)
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return (NULL);
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return (retval);
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}
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