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Diffstat (limited to '')
-rw-r--r-- | gnulib-tests/bench-digest.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/gnulib-tests/bench-digest.h b/gnulib-tests/bench-digest.h new file mode 100644 index 0000000..95d7300 --- /dev/null +++ b/gnulib-tests/bench-digest.h @@ -0,0 +1,63 @@ +/* + * Copyright (C) 2018-2023 Free Software Foundation, Inc. + * + * 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 3 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, see <https://www.gnu.org/licenses/>. */ + +#include <stdio.h> +#include <stdlib.h> + +#include "bench.h" + +int +main (int argc, char *argv[]) +{ + if (argc != 3) + { + fprintf (stderr, "Usage: %s SIZE REPETITIONS\n", argv[0]); + exit (1); + } + + size_t size = atol (argv[1]); + int repeat = atoi (argv[2]); + + char *memblock = (char *) malloc (size); + if (!memblock) + { + fprintf (stderr, "%s: memory exhausted\n", argv[0]); + return 1; + } + + /* Fill the memory block. */ + { + size_t i; + for (i = 0; i < size; i++) + memblock[i] = + (unsigned char) (((i * (i-1) * (i-5)) >> 6) + (i % 499) + (i % 101)); + } + + struct timings_state ts; + timing_start (&ts); + + int count; + for (count = 0; count < repeat; count++) + { + char digest[64]; + FUNC (memblock, size, digest); + } + + timing_end (&ts); + timing_output (&ts); + + return 0; +} |