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/* $Id$ */
/*
* Copyright (C)2003-2007 Benny Prijono <benny@prijono.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "test.h"
#if INCLUDE_RBTREE_TEST
#include <pjlib.h>
#define LOOP 32
#define MIN_COUNT 64
#define MAX_COUNT (LOOP * MIN_COUNT)
#define STRSIZE 16
#define THIS_FILE "rbtree_test"
typedef struct node_key
{
pj_uint32_t hash;
char str[STRSIZE];
} node_key;
static int compare_node(const node_key *k1, const node_key *k2)
{
if (k1->hash == k2->hash) {
return strcmp(k1->str, k2->str);
} else {
return k1->hash < k2->hash ? -1 : 1;
}
}
void randomize_string(char *str, int len)
{
int i;
for (i=0; i<len-1; ++i)
str[i] = (char)('a' + pj_rand() % 26);
str[len-1] = '\0';
}
static int test(void)
{
pj_rbtree rb;
node_key *key;
pj_rbtree_node *node;
pj_pool_t *pool;
int err=0;
int count = MIN_COUNT;
int i;
unsigned size;
pj_rbtree_init(&rb, (pj_rbtree_comp*)&compare_node);
size = MAX_COUNT*(sizeof(*key)+PJ_RBTREE_NODE_SIZE) +
PJ_RBTREE_SIZE + PJ_POOL_SIZE;
pool = pj_pool_create( mem, "pool", size, 0, NULL);
if (!pool) {
PJ_LOG(3,("test", "...error: creating pool of %u bytes", size));
return -10;
}
key = (node_key *)pj_pool_alloc(pool, MAX_COUNT*sizeof(*key));
if (!key)
return -20;
node = (pj_rbtree_node*)pj_pool_alloc(pool, MAX_COUNT*sizeof(*node));
if (!node)
return -30;
for (i=0; i<LOOP; ++i) {
int j;
pj_rbtree_node *prev, *it;
pj_timestamp t1, t2, t_setup, t_insert, t_search, t_erase;
pj_assert(rb.size == 0);
t_setup.u32.lo = t_insert.u32.lo = t_search.u32.lo = t_erase.u32.lo = 0;
for (j=0; j<count; j++) {
randomize_string(key[j].str, STRSIZE);
pj_get_timestamp(&t1);
node[j].key = &key[j];
node[j].user_data = key[j].str;
key[j].hash = pj_hash_calc(0, key[j].str, PJ_HASH_KEY_STRING);
pj_get_timestamp(&t2);
t_setup.u32.lo += (t2.u32.lo - t1.u32.lo);
pj_get_timestamp(&t1);
pj_rbtree_insert(&rb, &node[j]);
pj_get_timestamp(&t2);
t_insert.u32.lo += (t2.u32.lo - t1.u32.lo);
}
pj_assert(rb.size == (unsigned)count);
// Iterate key, make sure they're sorted.
prev = NULL;
it = pj_rbtree_first(&rb);
while (it) {
if (prev) {
if (compare_node((node_key*)prev->key,(node_key*)it->key)>=0) {
++err;
PJ_LOG(3, (THIS_FILE, "Error: %s >= %s",
(char*)prev->user_data, (char*)it->user_data));
}
}
prev = it;
it = pj_rbtree_next(&rb, it);
}
// Search.
for (j=0; j<count; j++) {
pj_get_timestamp(&t1);
it = pj_rbtree_find(&rb, &key[j]);
pj_get_timestamp(&t2);
t_search.u32.lo += (t2.u32.lo - t1.u32.lo);
pj_assert(it != NULL);
if (it == NULL)
++err;
}
// Erase node.
for (j=0; j<count; j++) {
pj_get_timestamp(&t1);
it = pj_rbtree_erase(&rb, &node[j]);
pj_get_timestamp(&t2);
t_erase.u32.lo += (t2.u32.lo - t1.u32.lo);
}
PJ_LOG(4, (THIS_FILE,
"...count:%d, setup:%d, insert:%d, search:%d, erase:%d",
count,
t_setup.u32.lo / count, t_insert.u32.lo / count,
t_search.u32.lo / count, t_erase.u32.lo / count));
count = 2 * count;
if (count > MAX_COUNT)
break;
}
pj_pool_release(pool);
return err;
}
int rbtree_test()
{
return test();
}
#endif /* INCLUDE_RBTREE_TEST */
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