コード例 #1
0
ファイル: vdelta-test.c プロジェクト: aosm/subversion
int
main(int argc, char **argv)
{
  apr_file_t *source_file_A = NULL;
  apr_file_t *target_file_A = NULL;
  int count_A = 0;
  apr_off_t len_A = 0;

  apr_file_t *source_file_B = NULL;
  apr_file_t *target_file_B = NULL;
  int count_B = 0;
  apr_off_t len_B = 0;

  apr_pool_t *pool;
  int quiet = 0;

  if (argc > 1 && argv[1][0] == '-' && argv[1][1] == 'q')
    {
      quiet = 1;
      --argc; ++argv;
    }

  apr_initialize();
  pool = svn_pool_create(NULL);

  if (argc == 2)
    {
      target_file_A = open_binary_read(argv[1], pool);
    }
  else if (argc == 3)
    {
      source_file_A = open_binary_read(argv[1], pool);
      target_file_A = open_binary_read(argv[2], pool);
    }
  else if (argc == 4)
    {
      source_file_A = open_binary_read(argv[1], pool);
      target_file_A = open_binary_read(argv[2], pool);
      source_file_B = open_binary_read(argv[2], pool);
      target_file_B = open_binary_read(argv[3], pool);
    }
  else
    {
      fprintf(stderr,
              "Usage: vdelta-test [-q] <target>\n"
              "   or: vdelta-test [-q] <source> <target>\n"
              "   or: vdelta-test [-q] <source> <intermediate> <target>\n");
      exit(1);
    }

  do_one_diff(source_file_A, target_file_A,
              &count_A, &len_A, quiet, pool, "A ", stdout);

  if (source_file_B)
    {
      apr_pool_t *fpool = svn_pool_create(pool);
      apr_pool_t *wpool = svn_pool_create(pool);
      svn_txdelta_stream_t *stream_A = NULL;
      svn_txdelta_stream_t *stream_B = NULL;
      svn_txdelta_window_t *window_A = NULL;
      svn_txdelta_window_t *window_B = NULL;
      svn_txdelta_window_t *window_AB = NULL;
      int count_AB = 0;
      apr_off_t len_AB = 0;

      putc('\n', stdout);
      do_one_diff(source_file_B, target_file_B,
                  &count_B, &len_B, quiet, pool, "B ", stdout);

      putc('\n', stdout);

      {
        apr_off_t offset = 0;

        apr_file_seek(source_file_A, APR_SET, &offset);
        apr_file_seek(target_file_A, APR_SET, &offset);
        apr_file_seek(source_file_B, APR_SET, &offset);
        apr_file_seek(target_file_B, APR_SET, &offset);
      }

      svn_txdelta(&stream_A,
                  svn_stream_from_aprfile(source_file_A, fpool),
                  svn_stream_from_aprfile(target_file_A, fpool),
                  fpool);
      svn_txdelta(&stream_B,
                  svn_stream_from_aprfile(source_file_B, fpool),
                  svn_stream_from_aprfile(target_file_B, fpool),
                  fpool);

      for (count_AB = 0; count_AB < count_B; ++count_AB)
        {
          svn_error_t *err;

          err = svn_txdelta_next_window(&window_A, stream_A, wpool);
          if (err)
            svn_handle_error2(err, stderr, TRUE, "vdelta-test: ");
          err = svn_txdelta_next_window(&window_B, stream_B, wpool);
          if (err)
            svn_handle_error2(err, stderr, TRUE, "vdelta-test: ");

          /* Note: It's not possible that window_B is null, we already
             counted the number of windows in the second delta. */
          assert(window_A != NULL || window_B->src_ops == 0);
          if (window_B->src_ops == 0)
            {
              window_AB = window_B;
              window_AB->sview_len = 0;
            }
          else
            window_AB = svn_txdelta_compose_windows(window_A, window_B,
                                                    wpool);
          len_AB += print_delta_window(window_AB, "AB", quiet, stdout);
          svn_pool_clear(wpool);
        }

      fprintf(stdout, "AB: (LENGTH %" APR_OFF_T_FMT " +%d)\n",
              len_AB, count_AB);
    }

  if (source_file_A) apr_file_close(source_file_A);
  if (target_file_A) apr_file_close(target_file_A);
  if (source_file_B) apr_file_close(source_file_B);
  if (target_file_B) apr_file_close(source_file_B);

  svn_pool_destroy(pool);
  apr_terminate();
  exit(0);
}
コード例 #2
0
ファイル: random-test.c プロジェクト: vocho/openqnx
/* (Note: *LAST_SEED is an output parameter.) */
static svn_error_t *
do_random_combine_test(const char **msg,
                       svn_boolean_t msg_only,
                       apr_pool_t *pool,
                       apr_uint32_t *last_seed)
{
  static char msg_buff[256];

  apr_uint32_t seed, bytes_range, maxlen;
  int i, iterations, dump_files, print_windows;
  const char *random_bytes;

  /* Initialize parameters and print out the seed in case we dump core
     or something. */
  init_params(&seed, &maxlen, &iterations, &dump_files, &print_windows,
              &random_bytes, &bytes_range, pool);
  sprintf(msg_buff,
          "random combine delta test, seed = %lu", (unsigned long) seed);
  *msg = msg_buff;

  if (msg_only)
    return SVN_NO_ERROR;
  else
    printf("SEED:  %s\n", msg_buff);

  for (i = 0; i < iterations; i++)
    {
      /* Generate source and target for the delta and its application.  */
      apr_uint32_t subseed_base = svn_test_rand((*last_seed = seed, &seed));
      apr_file_t *source = generate_random_file(maxlen, subseed_base, &seed,
                                                random_bytes, bytes_range,
                                                dump_files, pool);
      apr_file_t *middle = generate_random_file(maxlen, subseed_base, &seed,
                                                random_bytes, bytes_range,
                                                dump_files, pool);
      apr_file_t *target = generate_random_file(maxlen, subseed_base, &seed,
                                                random_bytes, bytes_range,
                                                dump_files, pool);
      apr_file_t *source_copy = copy_tempfile(source, pool);
      apr_file_t *middle_copy = copy_tempfile(middle, pool);
      apr_file_t *target_regen = open_tempfile(NULL, pool);

      svn_txdelta_stream_t *txdelta_stream_A;
      svn_txdelta_stream_t *txdelta_stream_B;
      svn_txdelta_window_handler_t handler;
      svn_stream_t *stream;
      void *handler_baton;

      /* Set up a four-stage pipeline: create two deltas, combine them
         and convert the result to svndiff format, parse that back
         into delta format, and apply it to a copy of the source file
         to see if we get the same target back.  */
      apr_pool_t *delta_pool = svn_pool_create(pool);

      /* Make stage 4: apply the text delta.  */
      svn_txdelta_apply(svn_stream_from_aprfile(source_copy, delta_pool),
                        svn_stream_from_aprfile(target_regen, delta_pool),
                        NULL, NULL, delta_pool, &handler, &handler_baton);

      /* Make stage 3: reparse the text delta.  */
      stream = svn_txdelta_parse_svndiff(handler, handler_baton, TRUE,
                                         delta_pool);

      /* Make stage 2: encode the text delta in svndiff format.  */
      svn_txdelta_to_svndiff2(&handler, &handler_baton, stream, 1,
                              delta_pool);

      /* Make stage 1: create the text deltas.  */

      svn_txdelta(&txdelta_stream_A,
                  svn_stream_from_aprfile(source, delta_pool),
                  svn_stream_from_aprfile(middle, delta_pool),
                  delta_pool);

      svn_txdelta(&txdelta_stream_B,
                  svn_stream_from_aprfile(middle_copy, delta_pool),
                  svn_stream_from_aprfile(target, delta_pool),
                  delta_pool);

      {
        svn_txdelta_window_t *window_A;
        svn_txdelta_window_t *window_B;
        svn_txdelta_window_t *composite;
        apr_pool_t *wpool = svn_pool_create(delta_pool);

        do
          {
            SVN_ERR(svn_txdelta_next_window(&window_A, txdelta_stream_A,
                                            wpool));
            if (print_windows)
              delta_window_print(window_A, "A ", stdout);
            SVN_ERR(svn_txdelta_next_window(&window_B, txdelta_stream_B,
                                            wpool));
            if (print_windows)
              delta_window_print(window_B, "B ", stdout);
            if (!window_B)
              break;
            assert(window_A != NULL || window_B->src_ops == 0);
            if (window_B->src_ops == 0)
              {
                composite = window_B;
                composite->sview_len = 0;
              }
            else
              composite = svn_txdelta_compose_windows(window_A, window_B,
                                                      wpool);
            if (print_windows)
              delta_window_print(composite, "AB", stdout);

            /* The source view length should not be 0 if there are
               source copy ops in the window. */
            if (composite
                && composite->sview_len == 0 && composite->src_ops > 0)
              return svn_error_create
                (SVN_ERR_FS_GENERAL, NULL,
                 "combined delta window is inconsistent");

            SVN_ERR(handler(composite, handler_baton));
            svn_pool_clear(wpool);
          }
        while (composite != NULL);
        svn_pool_destroy(wpool);
      }

      svn_pool_destroy(delta_pool);

      SVN_ERR(compare_files(target, target_regen, dump_files));

      apr_file_close(source);
      apr_file_close(middle);
      apr_file_close(target);
      apr_file_close(source_copy);
      apr_file_close(middle_copy);
      apr_file_close(target_regen);
    }

  return SVN_NO_ERROR;
}