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/* Copyright (C) 2000 MySQL AB
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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/* Test of hash library: big test */
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#include <my_global.h>
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#define MAX_RECORDS 100000
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static int get_options(int argc, char *argv[]);
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static int rnd(int max_value);
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static uint testflag=0,recant=10000,reclength=37;
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static uint16 key1[1000];
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#define hash_check(A) 0
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my_bool hash_check(HASH *hash);
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void free_record(void *record);
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static uchar *hash2_key(const uchar *rec,uint *length,
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my_bool not_used __attribute__((unused)))
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*length=(uint) (uchar) rec[reclength-1];
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int main(int argc,char *argv[])
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DBUG_PROCESS(argv[0]);
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get_options(argc,argv);
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uint write_count,update,delete;
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unsigned long key_check;
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char *record,*recpos,oldrecord[120],key[10];
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DBUG_ENTER("do_test");
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write_count=update=delete=0;
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bzero((char*) key1,sizeof(key1[0])*1000);
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printf("- Creating hash\n");
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if (hash_init(&hash, default_charset_info, recant/2, 0, 6, 0, free_record, 0))
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printf("- Writing records:\n");
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for (i=0 ; i < recant ; i++)
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n1=rnd(1000); n2=rnd(100); n3=rnd(min(recant*5,MAX_RECORDS));
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record= (char*) my_malloc(reclength,MYF(MY_FAE));
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sprintf(record,"%6d:%4d:%8d:Pos: %4d ",n1,n2,n3,write_count);
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if (my_hash_insert(&hash,record))
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printf("Error: %d in write at record: %d\n",my_errno,i);
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if (hash_check(&hash))
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puts("Heap keys crashed");
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for (i=0 ; i < write_count/10 ; i++)
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for (j=rnd(1000) ; j>0 && key1[j] == 0 ; j--) ;
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sprintf(key,"%6d",j);
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if (!(recpos=hash_search(&hash,key,0)))
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printf("can't find key1: \"%s\"\n",key);
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key1[atoi(recpos)]--;
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key_check-=atoi(recpos);
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memcpy(oldrecord,recpos,reclength);
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if (hash_delete(&hash,recpos))
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printf("error: %d; can't delete record: \"%s\"\n", my_errno,oldrecord);
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if (testflag == 2 && hash_check(&hash))
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puts("Heap keys crashed");
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if (hash_check(&hash))
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puts("Hash keys crashed");
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printf("- Update\n");
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for (i=0 ; i < write_count/10 ; i++)
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n1=rnd(1000); n2=rnd(100); n3=rnd(min(recant*2,MAX_RECORDS));
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for (j=rnd(1000) ; j>0 && key1[j] == 0 ; j--) ;
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sprintf(key,"%6d",j);
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if (!(recpos=hash_search(&hash,key,0)))
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printf("can't find key1: \"%s\"\n",key);
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key1[atoi(recpos)]--;
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key_check=key_check-atoi(recpos)+n1;
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sprintf(recpos,"%6d:%4d:%8d:XXX: %4d ",n1,n2,n3,update);
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if (hash_update(&hash,recpos,key,0))
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printf("can't update key1: \"%s\"\n",key);
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if (testflag == 3 && hash_check(&hash))
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printf("Heap keys crashed for %d update\n",update);
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if (hash_check(&hash))
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puts("Heap keys crashed");
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for (j=0 ; j < 1000 ; j++)
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HASH_SEARCH_STATE state;
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printf("- Testing identical read\n");
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sprintf(key,"%6d",j);
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if (!(recpos= hash_first(&hash, key, 0, &state)))
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printf("can't find key1: \"%s\"\n",key);
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while (hash_next(&hash, key, 0, &state) && pos < (ulong) (key1[j]+10))
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if (pos != (ulong) key1[j])
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printf("Found %ld copies of key: %s. Should be %d",pos,key,key1[j]);
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printf("- Creating output heap-file 2\n");
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if (hash_init(&hash2, default_charset_info, hash.records, 0, 0, hash2_key, free_record,0))
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printf("- Copying and removing records\n");
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while ((recpos=hash_element(&hash,0)))
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record=(uchar*) my_malloc(reclength,MYF(MY_FAE));
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memcpy(record,recpos,reclength);
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record[reclength-1]=rnd(5)+1;
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if (my_hash_insert(&hash2,record))
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printf("Got error when inserting record: %*s",reclength,record);
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key_check-=atoi(record);
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if (hash_delete(&hash,recpos))
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printf("Got error when deleting record: %*s",reclength,recpos);
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if (hash_check(&hash) || hash_check(&hash2))
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puts("Hash keys crashed");
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if (hash_check(&hash) || hash_check(&hash2))
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puts("Hash keys crashed");
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printf("Key check didn't get to 0 (%ld)\n",key_check);
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printf("\nFollowing test have been made:\n");
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printf("Write records: %d\nUpdate records: %d\nDelete records: %d\n", write_count,
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hash_free(&hash); hash_free(&hash2);
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my_end(MY_GIVE_INFO);
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printf("Got error: %d when using hashing\n",my_errno);
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/* NOTE! DBUG not initialised - no debugging here! */
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static int get_options(int argc, char **argv)
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while (--argc >0 && *(pos = *(++argv)) == '-' ) {
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case 'm': /* records */
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testflag=atoi(++pos); /* testmod */
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printf("%s Ver 1.0 for %s at %s\n",progname,SYSTEM_TYPE,MACHINE_TYPE);
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printf("MySQL AB, by Monty\n\n");
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printf("Usage: %s [-?ABIKLWv] [-m#] [-t#]\n",progname);
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/* Get a random number in the interval 0 <= x <= n */
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static int rnd(int max_value)
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return (int) ((rand() & 32767)/32767.0*max_value);
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void free_record(void *record)
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my_free(record,MYF(0));