diff options
Diffstat (limited to 'src/benchmark.c')
| -rw-r--r-- | src/benchmark.c | 172 |
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 } - |