kc3-lang/libxkbcommon/bench/atom.c

Branch : - branch - android master - tag -

• Show log

  Commit

• Author : Ran Benita
  Date : 2021-04-08 10:51:07
  Hash : baf55226
  Message : bench: add atom benchmark Signed-off-by: Ran Benita <ran@unusedvar.com>

• bench/atom.c

• /*
   * Copyright © 2021 Ran Benita <ran@unusedvar.com>
   *
   * Permission is hereby granted, free of charge, to any person obtaining a
   * copy of this software and associated documentation files (the "Software"),
   * to deal in the Software without restriction, including without limitation
   * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   * and/or sell copies of the Software, and to permit persons to whom the
   * Software is furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice (including the next
   * paragraph) shall be included in all copies or substantial portions of the
   * Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
   * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
   * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
   * DEALINGS IN THE SOFTWARE.
   */
  
  #include "config.h"
  
  #include <stdbool.h>
  #include <stdint.h>
  #include <stdio.h>
  #include <string.h>
  #include <time.h>
  
  #include "atom.h"
  #include "bench.h"
  #include "darray.h"
  
  #define BENCHMARK_ITERATIONS 100
  
  int
  main(void)
  {
      FILE *file;
      char wordbuf[1024];
      darray(char *) words;
      char **worditer;
      struct atom_table *table;
      xkb_atom_t atom;
      const char *text;
      struct bench bench;
      char *elapsed;
  
      darray_init(words);
      file = fopen("/usr/share/dict/words", "rb");
      if (file == NULL) {
          perror("/usr/share/dict/words");
          return -1;
      }
      while (fgets(wordbuf, sizeof(wordbuf), file)) {
          size_t len = strlen(wordbuf);
          if (len > 0 && wordbuf[len - 1] == '\n')
              wordbuf[len - 1] = '\0';
          darray_append(words, strdup(wordbuf));
      }
      fclose(file);
  
      bench_start(&bench);
      for (int i = 0; i < BENCHMARK_ITERATIONS; i++) {
          table = atom_table_new();
          assert(table);
  
          darray_foreach(worditer, words) {
              atom = atom_intern(table, *worditer, strlen(*worditer) - 1, true);
              assert(atom != XKB_ATOM_NONE);
  
              text = atom_text(table, atom);
              assert(text != NULL);
          }
  
          atom_table_free(table);
      }
      bench_stop(&bench);
  
      elapsed = bench_elapsed_str(&bench);
      fprintf(stderr, "%d iterations in %ss\n",
              BENCHMARK_ITERATIONS, elapsed);
      free(elapsed);
  
      darray_foreach(worditer, words) {
          free(*worditer);
      }
      darray_free(words);
  
      return 0;
  }