mirror of
https://gitlab.isc.org/isc-projects/bind9
synced 2025-08-22 10:10:06 +00:00
f5c204ac3e
Instead of relying on unreliable order of execution of the library constructors and destructors, move them to individual binaries. The advantage is that the execution time and order will remain constant and will not depend on the dynamic load dependency solver. This requires more work, but that was mitigated by a simple requirement, any executable using libisc and libdns, must include <isc/lib.h> and <dns/lib.h> respectively (in this particular order). In turn, these two headers must not be included from within any library as they contain inlined functions marked with constructor/destructor attributes.
79 lines
1.9 KiB
C
79 lines
1.9 KiB
C
/*
|
|
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
|
|
*
|
|
* SPDX-License-Identifier: MPL-2.0
|
|
*
|
|
* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, you can obtain one at https://mozilla.org/MPL/2.0/.
|
|
*
|
|
* See the COPYRIGHT file distributed with this work for additional
|
|
* information regarding copyright ownership.
|
|
*/
|
|
|
|
#include <stdbool.h>
|
|
#include <stdint.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
#include <isc/iterated_hash.h>
|
|
#include <isc/lib.h>
|
|
#include <isc/random.h>
|
|
#include <isc/time.h>
|
|
|
|
#include <dns/lib.h>
|
|
#include <dns/name.h>
|
|
|
|
static void
|
|
time_it(const int count, const int iterations, const unsigned char *salt,
|
|
const int saltlen, const unsigned char *in, const int inlen) {
|
|
uint8_t out[NSEC3_MAX_HASH_LENGTH] = { 0 };
|
|
isc_time_t start, finish;
|
|
|
|
printf("%d iterations, %d salt length, %d input length: ", iterations,
|
|
saltlen, inlen);
|
|
fflush(stdout);
|
|
|
|
start = isc_time_now_hires();
|
|
|
|
int i = 0;
|
|
while (i++ < count) {
|
|
isc_iterated_hash(out, 1, iterations, salt, saltlen, in, inlen);
|
|
}
|
|
|
|
finish = isc_time_now_hires();
|
|
|
|
uint64_t microseconds = isc_time_microdiff(&finish, &start);
|
|
printf("%0.2f us per iterated_hash()\n", (double)microseconds / count);
|
|
fflush(stdout);
|
|
}
|
|
|
|
int
|
|
main(void) {
|
|
uint8_t salt[DNS_NAME_MAXWIRE];
|
|
uint8_t in[DNS_NAME_MAXWIRE];
|
|
size_t saltlen = sizeof(salt);
|
|
size_t inlen = sizeof(in);
|
|
|
|
isc_random_buf(salt, saltlen);
|
|
isc_random_buf(in, inlen);
|
|
|
|
time_it(10000, 150, salt, saltlen, in, inlen);
|
|
time_it(10000, 15, salt, saltlen, in, inlen);
|
|
time_it(10000, 0, salt, saltlen, in, inlen);
|
|
|
|
saltlen = 32;
|
|
inlen = 32;
|
|
|
|
time_it(10000, 150, salt, 32, in, inlen);
|
|
time_it(10000, 15, salt, 32, in, inlen);
|
|
time_it(10000, 0, salt, saltlen, in, inlen);
|
|
|
|
saltlen = 0;
|
|
inlen = 1;
|
|
|
|
time_it(10000, 150, salt, 32, in, inlen);
|
|
time_it(10000, 15, salt, 32, in, inlen);
|
|
time_it(10000, 0, salt, saltlen, in, inlen);
|
|
}
|