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/*
* Copyright © 2012 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.
*
* Authors:
* Eric Anholt <eric@anholt.net>
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include "hash_table.h"
int
main(int argc, char **argv)
{
struct hash_table *ht;
const char *str1 = "test1";
const char *str2 = "test2";
const char *str3 = "test3";
struct hash_entry *entry1, *entry2, *search_entry;
uint32_t bad_hash = 5;
int i;
ht = _mesa_hash_table_create(NULL, NULL, _mesa_key_string_equal);
/* Insert some items. Inserting 3 items forces a rehash and the new
* table size is big enough that we don't get rehashes later.
*/
_mesa_hash_table_insert_pre_hashed(ht, bad_hash, str1, NULL);
_mesa_hash_table_insert_pre_hashed(ht, bad_hash, str2, NULL);
_mesa_hash_table_insert_pre_hashed(ht, bad_hash, str3, NULL);
entry1 = _mesa_hash_table_search_pre_hashed(ht, bad_hash, str1);
assert(entry1->key == str1);
entry2 = _mesa_hash_table_search_pre_hashed(ht, bad_hash, str2);
assert(entry2->key == str2);
/* Check that we can still find #1 after inserting #2 */
entry1 = _mesa_hash_table_search_pre_hashed(ht, bad_hash, str1);
assert(entry1->key == str1);
/* Remove the collided entry and look again. */
_mesa_hash_table_remove(ht, entry1);
entry2 = _mesa_hash_table_search_pre_hashed(ht, bad_hash, str2);
assert(entry2->key == str2);
/* Try inserting #2 again and make sure it gets overwritten */
_mesa_hash_table_insert_pre_hashed(ht, bad_hash, str2, NULL);
entry2 = _mesa_hash_table_search_pre_hashed(ht, bad_hash, str2);
hash_table_foreach(ht, search_entry) {
assert(search_entry == entry2 || search_entry->key != str2);
}
/* Put str1 back, then spam junk into the table to force a
* resize and make sure we can still find them both.
*/
_mesa_hash_table_insert_pre_hashed(ht, bad_hash, str1, NULL);
for (i = 0; i < 100; i++) {
char *key = malloc(10);
sprintf(key, "spam%d", i);
_mesa_hash_table_insert_pre_hashed(ht, _mesa_hash_string(key), key, NULL);
}
entry1 = _mesa_hash_table_search_pre_hashed(ht, bad_hash, str1);
assert(entry1->key == str1);
entry2 = _mesa_hash_table_search_pre_hashed(ht, bad_hash, str2);
assert(entry2->key == str2);
_mesa_hash_table_destroy(ht, NULL);
return 0;
}
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