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/***
This file is part of systemd.
Copyright 2013 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <stdlib.h>
#include "systemd-basic/alloc-util.h"
#include "systemd-basic/prioq.h"
#include "systemd-basic/set.h"
#include "systemd-basic/siphash24.h"
#include "systemd-basic/util.h"
#define SET_SIZE 1024*4
static int unsigned_compare(const void *a, const void *b) {
const unsigned *x = a, *y = b;
if (*x < *y)
return -1;
if (*x > *y)
return 1;
return 0;
}
static void test_unsigned(void) {
unsigned buffer[SET_SIZE], i;
Prioq *q;
srand(0);
q = prioq_new(trivial_compare_func);
assert_se(q);
for (i = 0; i < ELEMENTSOF(buffer); i++) {
unsigned u;
u = (unsigned) rand();
buffer[i] = u;
assert_se(prioq_put(q, UINT_TO_PTR(u), NULL) >= 0);
}
qsort(buffer, ELEMENTSOF(buffer), sizeof(buffer[0]), unsigned_compare);
for (i = 0; i < ELEMENTSOF(buffer); i++) {
unsigned u;
assert_se(prioq_size(q) == ELEMENTSOF(buffer) - i);
u = PTR_TO_UINT(prioq_pop(q));
assert_se(buffer[i] == u);
}
assert_se(prioq_isempty(q));
prioq_free(q);
}
struct test {
unsigned value;
unsigned idx;
};
static int test_compare(const void *a, const void *b) {
const struct test *x = a, *y = b;
if (x->value < y->value)
return -1;
if (x->value > y->value)
return 1;
return 0;
}
static void test_hash(const void *a, struct siphash *state) {
const struct test *x = a;
siphash24_compress(&x->value, sizeof(x->value), state);
}
static const struct hash_ops test_hash_ops = {
.hash = test_hash,
.compare = test_compare
};
static void test_struct(void) {
Prioq *q;
Set *s;
unsigned previous = 0, i;
int r;
srand(0);
q = prioq_new(test_compare);
assert_se(q);
s = set_new(&test_hash_ops);
assert_se(s);
for (i = 0; i < SET_SIZE; i++) {
struct test *t;
t = new0(struct test, 1);
assert_se(t);
t->value = (unsigned) rand();
r = prioq_put(q, t, &t->idx);
assert_se(r >= 0);
if (i % 4 == 0) {
r = set_consume(s, t);
assert_se(r >= 0);
}
}
for (;;) {
struct test *t;
t = set_steal_first(s);
if (!t)
break;
r = prioq_remove(q, t, &t->idx);
assert_se(r > 0);
free(t);
}
for (i = 0; i < SET_SIZE * 3 / 4; i++) {
struct test *t;
assert_se(prioq_size(q) == (SET_SIZE * 3 / 4) - i);
t = prioq_pop(q);
assert_se(t);
assert_se(previous <= t->value);
previous = t->value;
free(t);
}
assert_se(prioq_isempty(q));
prioq_free(q);
assert_se(set_isempty(s));
set_free(s);
}
int main(int argc, char* argv[]) {
test_unsigned();
test_struct();
return 0;
}
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