mariadb/storage/tokudb/ft-index/ft/tests/subblock-test-index.cc

/* -*- mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*- */
// vim: ft=cpp:expandtab:ts=8:sw=4:softtabstop=4:
// test the sub block index function
#ident "$Id$"
/*
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        PATENT MARKING NOTICE (below), and the PATENT RIGHTS
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        provided with the distribution.

  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
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  02110-1301, USA.

COPYRIGHT NOTICE:

  TokuFT, Tokutek Fractal Tree Indexing Library.
  Copyright (C) 2007-2013 Tokutek, Inc.

DISCLAIMER:

  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.

UNIVERSITY PATENT NOTICE:

  The technology is licensed by the Massachusetts Institute of
  Technology, Rutgers State University of New Jersey, and the Research
  Foundation of State University of New York at Stony Brook under
  United States of America Serial No. 11/760379 and to the patents
  and/or patent applications resulting from it.

PATENT MARKING NOTICE:

  This software is covered by US Patent No. 8,185,551.
  This software is covered by US Patent No. 8,489,638.

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*/

#ident "Copyright (c) 2007-2013 Tokutek Inc.  All rights reserved."

#include <toku_portability.h>
#include "test.h"
#include <stdio.h>
#include <errno.h>
#include <string.h>

#include "serialize/sub_block.h"

static void
test_sub_block_index(void) {
    if (verbose)
        printf("%s:%d\n", __FUNCTION__, __LINE__);
    
    const int n_sub_blocks = max_sub_blocks;
    struct sub_block sub_block[n_sub_blocks];
    
    size_t max_offset = 0;
    for (int i = 0 ; i < n_sub_blocks; i++) {
        size_t size = i+1;
        sub_block_init(&sub_block[i]);
        sub_block[i].uncompressed_size = size;
        max_offset += size;
    }
    
    int offset_to_sub_block[max_offset];
    for (int i = 0; i < (int) max_offset; i++)
        offset_to_sub_block[i] = -1;

    size_t start_offset = 0;
    for (int i = 0; i < n_sub_blocks; i++) {
        size_t size = sub_block[i].uncompressed_size;
        for (int j = 0; j < (int) (start_offset + size); j++) {
            if (offset_to_sub_block[j] == -1)
                offset_to_sub_block[j] = i;
        }
        start_offset += size;
    }

    int r;
    for (size_t offset = 0; offset < max_offset; offset++) {
        r = get_sub_block_index(n_sub_blocks, sub_block, offset);
        if (verbose)
            printf("%s:%d %u %d\n", __FUNCTION__, __LINE__, (unsigned int) offset, r);
        assert(0 <= r && r < n_sub_blocks);
        assert(r == offset_to_sub_block[offset]);
    }
    
    r = get_sub_block_index(n_sub_blocks, sub_block, max_offset);
    assert(r == -1);
}

int
test_main (int argc, const char *argv[]) {
    int i;
    for (i=1; i<argc; i++) {
        const char *arg = argv[i];
        if (strcmp(arg, "-v") == 0)
            verbose++;
    }
    test_sub_block_index();
    return 0;
}