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-rw-r--r--src/benchmark.c172
1 files changed, 75 insertions, 97 deletions
diff --git a/src/benchmark.c b/src/benchmark.c
index 115fcc5..1ce7da9 100644
--- a/src/benchmark.c
+++ b/src/benchmark.c
@@ -1,28 +1,11 @@
-/**
- * libkeccak – Keccak-family hashing library
- *
- * Copyright © 2014, 2015, 2017 Mattias Andrée (maandree@kth.se)
- *
- * This library is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This library 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 Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this library. If not, see <http://www.gnu.org/licenses/>.
- */
+/* See LICENSE file for copyright and license details. */
#include <libkeccak.h>
+#include <fcntl.h>
#include <stdio.h>
#include <string.h>
-#include <fcntl.h>
-#include <unistd.h>
#include <time.h>
+#include <unistd.h>
#ifndef MESSAGE_FILE
@@ -66,96 +49,91 @@
*
* @return Zero on success, 1 on error
*/
-int main(void)
+int
+main(void)
{
- char message[MESSAGE_LEN];
- libkeccak_spec_t spec;
- libkeccak_state_t state;
- char hashsum[OUTPUT / 8];
+ char message[MESSAGE_LEN];
+ libkeccak_spec_t spec;
+ libkeccak_state_t state;
+ char hashsum[OUTPUT / 8];
#ifndef IGNORE_BEHEXING
- char hexsum[OUTPUT / 8 * 2 + 1];
+ char hexsum[OUTPUT / 8 * 2 + 1];
#endif
- struct timespec start, end;
- long i, r;
-
- /* Fill message with content from the file. */
- {
- int fd;
- ssize_t got;
- size_t ptr;
- if (fd = open(MESSAGE_FILE, O_RDONLY), fd < 0)
- return perror("open"), 1;
- for (ptr = 0; ptr < MESSAGE_LEN; ptr += (size_t)got)
- if (got = read(fd, message, MESSAGE_LEN - ptr), got <= 0)
- return perror("read"), close(fd), 1;
- close(fd);
- }
-
- /* Initialise state. */
- spec.bitrate = BITRATE;
- spec.capacity = CAPACITY;
- spec.output = OUTPUT;
- if (libkeccak_state_initialise(&state, &spec))
- return perror("libkeccak_state_initialise"), 1;
-
- /* Get start-time. */
- if (clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &start) < 0)
- return perror("clock_gettime"), 1;
-
- /* Run benchmarking loop. */
- for (r = 0; r < RERUNS; r++)
- {
- /* Updates. */
+ struct timespec start, end;
+ long i, r;
+
+ /* Fill message with content from the file. */
+ int fd;
+ ssize_t got;
+ size_t ptr;
+ if (fd = open(MESSAGE_FILE, O_RDONLY), fd < 0)
+ return perror("open"), 1;
+ for (ptr = 0; ptr < MESSAGE_LEN; ptr += (size_t)got)
+ if (got = read(fd, message, MESSAGE_LEN - ptr), got <= 0)
+ return perror("read"), close(fd), 1;
+ close(fd);
+
+ /* Initialise state. */
+ spec.bitrate = BITRATE;
+ spec.capacity = CAPACITY;
+ spec.output = OUTPUT;
+ if (libkeccak_state_initialise(&state, &spec))
+ return perror("libkeccak_state_initialise"), 1;
+
+ /* Get start-time. */
+ if (clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &start) < 0)
+ return perror("clock_gettime"), 1;
+
+ /* Run benchmarking loop. */
+ for (r = 0; r < RERUNS; r++) {
+ /* Updates. */
#if UPDATE_RUNS > 0
- for (i = 0; i < UPDATE_RUNS; i++)
- if (libkeccak_fast_update(&state, message, MESSAGE_LEN) < 0)
- return perror("libkeccak_update"), 1;
+ for (i = 0; i < UPDATE_RUNS; i++)
+ if (libkeccak_fast_update(&state, message, MESSAGE_LEN) < 0)
+ return perror("libkeccak_update"), 1;
#endif
-
- /* Digest. */
- if (libkeccak_fast_digest(&state, NULL, 0, 0, NULL, hashsum) < 0)
- return perror("libkeccak_digest"), 1;
+
+ /* Digest. */
+ if (libkeccak_fast_digest(&state, NULL, 0, 0, NULL, hashsum) < 0)
+ return perror("libkeccak_digest"), 1;
#ifndef IGNORE_BEHEXING
- libkeccak_behex_lower(hexsum, hashsum, OUTPUT / 8);
+ libkeccak_behex_lower(hexsum, hashsum, OUTPUT / 8);
#endif
-
- /* Fast squeezes. */
+
+ /* Fast squeezes. */
#if FAST_SQUEEZE_RUNS > 0
- libkeccak_fast_squeeze(&state, FAST_SQUEEZE_RUNS);
+ libkeccak_fast_squeeze(&state, FAST_SQUEEZE_RUNS);
#endif
-
- /* Slow squeezes. */
+
+ /* Slow squeezes. */
#if SLOW_SQUEEZE_RUNS > 0
- for (i = 0; i < SLOW_SQUEEZE_RUNS; i++)
- {
- libkeccak_squeeze(&state, hashsum);
+ for (i = 0; i < SLOW_SQUEEZE_RUNS; i++) {
+ libkeccak_squeeze(&state, hashsum);
# ifndef IGNORE_BEHEXING
- libkeccak_behex_lower(hexsum, hashsum, OUTPUT / 8);
+ libkeccak_behex_lower(hexsum, hashsum, OUTPUT / 8);
# endif
- }
+ }
#endif
- }
-
- /* Get end-time. */
- if (clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &end) < 0)
- return perror("clock_gettime"), -1;
-
- /* Print execution-time. */
- end.tv_sec -= start.tv_sec;
- end.tv_nsec -= start.tv_nsec;
- if (end.tv_nsec < 0)
- {
- end.tv_sec--;
- end.tv_nsec += 1000000000L;
- }
- printf("%03li%09li\n", (long)(end.tv_sec), end.tv_nsec);
-
- /* Release resources and exit. */
- libkeccak_state_fast_destroy(&state);
- return 0;
-
+ }
+
+ /* Get end-time. */
+ if (clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &end) < 0)
+ return perror("clock_gettime"), -1;
+
+ /* Print execution-time. */
+ end.tv_sec -= start.tv_sec;
+ end.tv_nsec -= start.tv_nsec;
+ if (end.tv_nsec < 0) {
+ end.tv_sec--;
+ end.tv_nsec += 1000000000L;
+ }
+ printf("%03li%09li\n", (long)(end.tv_sec), end.tv_nsec);
+
+ /* Release resources and exit. */
+ libkeccak_state_fast_destroy(&state);
+ return 0;
+
#if (UPDATE_RUNS == 0) && (SLOW_SQUEEZE_RUNS == 0)
- (void) i;
+ (void) i;
#endif
}
-