path: root/storage/tokudb/ft-index/ft/tests/ft-bfe-query.cc

/* -*- mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*- */
// vim: ft=cpp:expandtab:ts=8:sw=4:softtabstop=4:
#ident "$Id$"
/*
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  This program is free software; you can redistribute it and/or modify
  it under the terms of version 2 of the GNU General Public License as
  published by the Free Software Foundation, and provided that the
  following conditions are met:

      * Redistributions of source code must retain this COPYING
        CONDITIONS NOTICE, the COPYRIGHT NOTICE (below), the
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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:

  TokuDB, 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.

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  CHALLENGE, then Tokutek may terminate any rights granted to you
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*/

#ident "Copyright (c) 2011-2013 Tokutek Inc.  All rights reserved."

#include "test.h"

static  int
int64_key_cmp (DB *db UU(), const DBT *a, const DBT *b) {
    int64_t x = *(int64_t *) a->data;
    int64_t y = *(int64_t *) b->data;

    if (x<y) return -1;
    if (x>y) return 1;
    return 0;
}

static void
test_prefetch_read(int fd, FT_HANDLE UU(brt), FT brt_h) {
    int r;
    brt_h->compare_fun = int64_key_cmp;    
    FT_CURSOR XMALLOC(cursor);
    FTNODE dn = NULL;
    PAIR_ATTR attr;
    
    // first test that prefetching everything should work
    memset(&cursor->range_lock_left_key, 0 , sizeof(DBT));
    memset(&cursor->range_lock_right_key, 0 , sizeof(DBT));
    cursor->left_is_neg_infty = true;
    cursor->right_is_pos_infty = true;
    cursor->disable_prefetching = false;
    
    struct ftnode_fetch_extra bfe;

    // quick test to see that we have the right behavior when we set
    // disable_prefetching to true
    cursor->disable_prefetching = true;
    fill_bfe_for_prefetch(&bfe, brt_h, cursor);
    FTNODE_DISK_DATA ndd = NULL;
    r = toku_deserialize_ftnode_from(fd, make_blocknum(20), 0/*pass zero for hash*/, &dn, &ndd, &bfe);
    assert(r==0);
    assert(dn->n_children == 3);
    assert(BP_STATE(dn,0) == PT_ON_DISK);
    assert(BP_STATE(dn,1) == PT_ON_DISK);
    assert(BP_STATE(dn,2) == PT_ON_DISK);
    r = toku_ftnode_pf_callback(dn, ndd, &bfe, fd, &attr);
    assert(BP_STATE(dn,0) == PT_ON_DISK);
    assert(BP_STATE(dn,1) == PT_ON_DISK);
    assert(BP_STATE(dn,2) == PT_ON_DISK);
    destroy_bfe_for_prefetch(&bfe);
    toku_ftnode_free(&dn);
    toku_free(ndd);

    // now enable prefetching again
    cursor->disable_prefetching = false;
    
    fill_bfe_for_prefetch(&bfe, brt_h, cursor);
    r = toku_deserialize_ftnode_from(fd, make_blocknum(20), 0/*pass zero for hash*/, &dn, &ndd, &bfe);
    assert(r==0);
    assert(dn->n_children == 3);
    assert(BP_STATE(dn,0) == PT_AVAIL);
    assert(BP_STATE(dn,1) == PT_AVAIL);
    assert(BP_STATE(dn,2) == PT_AVAIL);
    toku_ftnode_pe_callback(dn, make_pair_attr(0xffffffff), &attr, brt_h);
    assert(BP_STATE(dn,0) == PT_COMPRESSED);
    assert(BP_STATE(dn,1) == PT_COMPRESSED);
    assert(BP_STATE(dn,2) == PT_COMPRESSED);
    r = toku_ftnode_pf_callback(dn, ndd, &bfe, fd, &attr);
    assert(BP_STATE(dn,0) == PT_AVAIL);
    assert(BP_STATE(dn,1) == PT_AVAIL);
    assert(BP_STATE(dn,2) == PT_AVAIL);
    destroy_bfe_for_prefetch(&bfe);
    toku_ftnode_free(&dn);
    toku_free(ndd);

    uint64_t left_key = 150;
    toku_fill_dbt(&cursor->range_lock_left_key, &left_key, sizeof(uint64_t));
    cursor->left_is_neg_infty = false;
    fill_bfe_for_prefetch(&bfe, brt_h, cursor);
    r = toku_deserialize_ftnode_from(fd, make_blocknum(20), 0/*pass zero for hash*/, &dn, &ndd, &bfe);
    assert(r==0);
    assert(dn->n_children == 3);
    assert(BP_STATE(dn,0) == PT_ON_DISK);
    assert(BP_STATE(dn,1) == PT_AVAIL);
    assert(BP_STATE(dn,2) == PT_AVAIL);
    toku_ftnode_pe_callback(dn, make_pair_attr(0xffffffff), &attr, brt_h);
    assert(BP_STATE(dn,0) == PT_ON_DISK);
    assert(BP_STATE(dn,1) == PT_COMPRESSED);
    assert(BP_STATE(dn,2) == PT_COMPRESSED);
    r = toku_ftnode_pf_callback(dn, ndd, &bfe, fd, &attr);
    assert(BP_STATE(dn,0) == PT_ON_DISK);
    assert(BP_STATE(dn,1) == PT_AVAIL);
    assert(BP_STATE(dn,2) == PT_AVAIL);
    destroy_bfe_for_prefetch(&bfe);
    toku_ftnode_free(&dn);
    toku_free(ndd);

    uint64_t right_key = 151;
    toku_fill_dbt(&cursor->range_lock_right_key, &right_key, sizeof(uint64_t));
    cursor->right_is_pos_infty = false;
    fill_bfe_for_prefetch(&bfe, brt_h, cursor);
    r = toku_deserialize_ftnode_from(fd, make_blocknum(20), 0/*pass zero for hash*/, &dn, &ndd, &bfe);
    assert(r==0);
    assert(dn->n_children == 3);
    assert(BP_STATE(dn,0) == PT_ON_DISK);
    assert(BP_STATE(dn,1) == PT_AVAIL);
    assert(BP_STATE(dn,2) == PT_ON_DISK);
    toku_ftnode_pe_callback(dn, make_pair_attr(0xffffffff), &attr, brt_h);
    assert(BP_STATE(dn,0) == PT_ON_DISK);
    assert(BP_STATE(dn,1) == PT_COMPRESSED);
    assert(BP_STATE(dn,2) == PT_ON_DISK);
    r = toku_ftnode_pf_callback(dn, ndd, &bfe, fd, &attr);
    assert(BP_STATE(dn,0) == PT_ON_DISK);
    assert(BP_STATE(dn,1) == PT_AVAIL);
    assert(BP_STATE(dn,2) == PT_ON_DISK);
    destroy_bfe_for_prefetch(&bfe);
    toku_ftnode_free(&dn);
    toku_free(ndd);

    left_key = 100000;
    right_key = 100000;
    fill_bfe_for_prefetch(&bfe, brt_h, cursor);
    r = toku_deserialize_ftnode_from(fd, make_blocknum(20), 0/*pass zero for hash*/, &dn, &ndd, &bfe);
    assert(r==0);
    assert(dn->n_children == 3);
    assert(BP_STATE(dn,0) == PT_ON_DISK);
    assert(BP_STATE(dn,1) == PT_ON_DISK);
    assert(BP_STATE(dn,2) == PT_AVAIL);
    toku_ftnode_pe_callback(dn, make_pair_attr(0xffffffff), &attr, brt_h);
    assert(BP_STATE(dn,0) == PT_ON_DISK);
    assert(BP_STATE(dn,1) == PT_ON_DISK);
    assert(BP_STATE(dn,2) == PT_COMPRESSED);
    r = toku_ftnode_pf_callback(dn, ndd, &bfe, fd, &attr);
    assert(BP_STATE(dn,0) == PT_ON_DISK);
    assert(BP_STATE(dn,1) == PT_ON_DISK);
    assert(BP_STATE(dn,2) == PT_AVAIL);
    destroy_bfe_for_prefetch(&bfe);
    toku_free(ndd);
    toku_ftnode_free(&dn);

    left_key = 100;
    right_key = 100;
    fill_bfe_for_prefetch(&bfe, brt_h, cursor);
    r = toku_deserialize_ftnode_from(fd, make_blocknum(20), 0/*pass zero for hash*/, &dn, &ndd, &bfe);
    assert(r==0);
    assert(dn->n_children == 3);
    assert(BP_STATE(dn,0) == PT_AVAIL);
    assert(BP_STATE(dn,1) == PT_ON_DISK);
    assert(BP_STATE(dn,2) == PT_ON_DISK);
    toku_ftnode_pe_callback(dn, make_pair_attr(0xffffffff), &attr, brt_h);
    assert(BP_STATE(dn,0) == PT_COMPRESSED);
    assert(BP_STATE(dn,1) == PT_ON_DISK);
    assert(BP_STATE(dn,2) == PT_ON_DISK);
    r = toku_ftnode_pf_callback(dn, ndd, &bfe, fd, &attr);
    assert(BP_STATE(dn,0) == PT_AVAIL);
    assert(BP_STATE(dn,1) == PT_ON_DISK);
    assert(BP_STATE(dn,2) == PT_ON_DISK);
    destroy_bfe_for_prefetch(&bfe);
    toku_ftnode_free(&dn);
    toku_free(ndd);

    toku_free(cursor);
}

static void
test_subset_read(int fd, FT_HANDLE UU(brt), FT brt_h) {
    int r;
    brt_h->compare_fun = int64_key_cmp;    
    FT_CURSOR XMALLOC(cursor);
    FTNODE dn = NULL;
    FTNODE_DISK_DATA ndd = NULL;
    PAIR_ATTR attr;
    
    // first test that prefetching everything should work
    memset(&cursor->range_lock_left_key, 0 , sizeof(DBT));
    memset(&cursor->range_lock_right_key, 0 , sizeof(DBT));
    cursor->left_is_neg_infty = true;
    cursor->right_is_pos_infty = true;
    
    struct ftnode_fetch_extra bfe;

    uint64_t left_key = 150;
    uint64_t right_key = 151;
    DBT left, right;
    toku_fill_dbt(&left, &left_key, sizeof(left_key));
    toku_fill_dbt(&right, &right_key, sizeof(right_key));
    fill_bfe_for_subset_read(
        &bfe,
        brt_h,
        NULL, 
        &left,
        &right,
        false,
        false,
        false,
        false
        );
    
    // fake the childnum to read
    // set disable_prefetching ON
    bfe.child_to_read = 2;
    bfe.disable_prefetching = true;
    r = toku_deserialize_ftnode_from(fd, make_blocknum(20), 0/*pass zero for hash*/, &dn, &ndd, &bfe);
    assert(r==0);
    assert(dn->n_children == 3);
    assert(BP_STATE(dn,0) == PT_ON_DISK);
    assert(BP_STATE(dn,1) == PT_ON_DISK);
    assert(BP_STATE(dn,2) == PT_AVAIL);
    // need to call this twice because we had a subset read before, that touched the clock
    toku_ftnode_pe_callback(dn, make_pair_attr(0xffffffff), &attr, brt_h);
    assert(BP_STATE(dn,0) == PT_ON_DISK);
    assert(BP_STATE(dn,1) == PT_ON_DISK);
    assert(BP_STATE(dn,2) == PT_AVAIL);
    toku_ftnode_pe_callback(dn, make_pair_attr(0xffffffff), &attr, brt_h);
    assert(BP_STATE(dn,0) == PT_ON_DISK);
    assert(BP_STATE(dn,1) == PT_ON_DISK);
    assert(BP_STATE(dn,2) == PT_COMPRESSED);
    r = toku_ftnode_pf_callback(dn, ndd, &bfe, fd, &attr);
    assert(BP_STATE(dn,0) == PT_ON_DISK);
    assert(BP_STATE(dn,1) == PT_ON_DISK);
    assert(BP_STATE(dn,2) == PT_AVAIL);
    toku_ftnode_free(&dn);
    toku_free(ndd);

    // fake the childnum to read
    bfe.child_to_read = 2;
    bfe.disable_prefetching = false;
    r = toku_deserialize_ftnode_from(fd, make_blocknum(20), 0/*pass zero for hash*/, &dn, &ndd, &bfe);
    assert(r==0);
    assert(dn->n_children == 3);
    assert(BP_STATE(dn,0) == PT_ON_DISK);
    assert(BP_STATE(dn,1) == PT_AVAIL);
    assert(BP_STATE(dn,2) == PT_AVAIL);
    // need to call this twice because we had a subset read before, that touched the clock
    toku_ftnode_pe_callback(dn, make_pair_attr(0xffffffff), &attr, brt_h);
    assert(BP_STATE(dn,0) == PT_ON_DISK);
    assert(BP_STATE(dn,1) == PT_COMPRESSED);
    assert(BP_STATE(dn,2) == PT_AVAIL);
    toku_ftnode_pe_callback(dn, make_pair_attr(0xffffffff), &attr, brt_h);
    assert(BP_STATE(dn,0) == PT_ON_DISK);
    assert(BP_STATE(dn,1) == PT_COMPRESSED);
    assert(BP_STATE(dn,2) == PT_COMPRESSED);
    r = toku_ftnode_pf_callback(dn, ndd, &bfe, fd, &attr);
    assert(BP_STATE(dn,0) == PT_ON_DISK);
    assert(BP_STATE(dn,1) == PT_AVAIL);
    assert(BP_STATE(dn,2) == PT_AVAIL);
    toku_ftnode_free(&dn);
    toku_free(ndd);

    // fake the childnum to read
    bfe.child_to_read = 0;
    r = toku_deserialize_ftnode_from(fd, make_blocknum(20), 0/*pass zero for hash*/, &dn, &ndd, &bfe);
    assert(r==0);
    assert(dn->n_children == 3);
    assert(BP_STATE(dn,0) == PT_AVAIL);
    assert(BP_STATE(dn,1) == PT_AVAIL);
    assert(BP_STATE(dn,2) == PT_ON_DISK);
    // need to call this twice because we had a subset read before, that touched the clock
    toku_ftnode_pe_callback(dn, make_pair_attr(0xffffffff), &attr, brt_h);
    assert(BP_STATE(dn,0) == PT_AVAIL);
    assert(BP_STATE(dn,1) == PT_COMPRESSED);
    assert(BP_STATE(dn,2) == PT_ON_DISK);
    toku_ftnode_pe_callback(dn, make_pair_attr(0xffffffff), &attr, brt_h);
    assert(BP_STATE(dn,0) == PT_COMPRESSED);
    assert(BP_STATE(dn,1) == PT_COMPRESSED);
    assert(BP_STATE(dn,2) == PT_ON_DISK);
    r = toku_ftnode_pf_callback(dn, ndd, &bfe, fd, &attr);
    assert(BP_STATE(dn,0) == PT_AVAIL);
    assert(BP_STATE(dn,1) == PT_AVAIL);
    assert(BP_STATE(dn,2) == PT_ON_DISK);
    toku_ftnode_free(&dn);
    toku_free(ndd);

    toku_free(cursor);
}


static void
test_prefetching(void) {
    //    struct ft_handle source_ft;
    struct ftnode sn;

    int fd = open(TOKU_TEST_FILENAME, O_RDWR|O_CREAT|O_BINARY, S_IRWXU|S_IRWXG|S_IRWXO); assert(fd >= 0);

    int r;

    //    source_ft.fd=fd;
    sn.max_msn_applied_to_node_on_disk.msn = 0;
    sn.flags = 0x11223344;
    sn.thisnodename.b = 20;
    sn.layout_version = FT_LAYOUT_VERSION;
    sn.layout_version_original = FT_LAYOUT_VERSION;
    sn.height = 1;
    sn.n_children = 3;
    sn.dirty = 1;
    sn.oldest_referenced_xid_known = TXNID_NONE;

    uint64_t key1 = 100;
    uint64_t key2 = 200;
    
    MALLOC_N(sn.n_children, sn.bp);
    MALLOC_N(sn.n_children-1, sn.childkeys);
    toku_memdup_dbt(&sn.childkeys[0], &key1, sizeof(key1));
    toku_memdup_dbt(&sn.childkeys[1], &key2, sizeof(key2));
    sn.totalchildkeylens = sizeof(key1) + sizeof(key2);
    BP_BLOCKNUM(&sn, 0).b = 30;
    BP_BLOCKNUM(&sn, 1).b = 35;
    BP_BLOCKNUM(&sn, 2).b = 40;
    BP_STATE(&sn,0) = PT_AVAIL;
    BP_STATE(&sn,1) = PT_AVAIL;
    BP_STATE(&sn,2) = PT_AVAIL;
    set_BNC(&sn, 0, toku_create_empty_nl());
    set_BNC(&sn, 1, toku_create_empty_nl());
    set_BNC(&sn, 2, toku_create_empty_nl());
    //Create XIDS
    XIDS xids_0 = xids_get_root_xids();
    XIDS xids_123;
    XIDS xids_234;
    r = xids_create_child(xids_0, &xids_123, (TXNID)123);
    CKERR(r);
    r = xids_create_child(xids_123, &xids_234, (TXNID)234);
    CKERR(r);

    // data in the buffers does not matter in this test
    //Cleanup:
    xids_destroy(&xids_0);
    xids_destroy(&xids_123);
    xids_destroy(&xids_234);

    FT_HANDLE XMALLOC(brt);
    FT XCALLOC(brt_h);
    toku_ft_init(brt_h,
                 make_blocknum(0),
                 ZERO_LSN,
                 TXNID_NONE,
                 4*1024*1024,
                 128*1024,
                 TOKU_DEFAULT_COMPRESSION_METHOD);
    brt->ft = brt_h;
    toku_blocktable_create_new(&brt_h->blocktable);
    { int r_truncate = ftruncate(fd, 0); CKERR(r_truncate); }
    //Want to use block #20
    BLOCKNUM b = make_blocknum(0);
    while (b.b < 20) {
        toku_allocate_blocknum(brt_h->blocktable, &b, brt_h);
    }
    assert(b.b == 20);

    {
        DISKOFF offset;
        DISKOFF size;
        toku_blocknum_realloc_on_disk(brt_h->blocktable, b, 100, &offset, brt_h, fd, false);
        assert(offset==BLOCK_ALLOCATOR_TOTAL_HEADER_RESERVE);

        toku_translate_blocknum_to_offset_size(brt_h->blocktable, b, &offset, &size);
        assert(offset == BLOCK_ALLOCATOR_TOTAL_HEADER_RESERVE);
        assert(size   == 100);
    }
    FTNODE_DISK_DATA ndd = NULL;
    r = toku_serialize_ftnode_to(fd, make_blocknum(20), &sn, &ndd, true, brt->ft, false);
    assert(r==0);

    test_prefetch_read(fd, brt, brt_h);    
    test_subset_read(fd, brt, brt_h);

    toku_free(sn.childkeys[0].data);
    toku_free(sn.childkeys[1].data);
    destroy_nonleaf_childinfo(BNC(&sn, 0));
    destroy_nonleaf_childinfo(BNC(&sn, 1));
    destroy_nonleaf_childinfo(BNC(&sn, 2));
    toku_free(sn.bp);
    toku_free(sn.childkeys);

    toku_block_free(brt_h->blocktable, BLOCK_ALLOCATOR_TOTAL_HEADER_RESERVE);
    toku_blocktable_destroy(&brt_h->blocktable);
    toku_free(brt_h->h);
    toku_free(brt_h);
    toku_free(brt);
    toku_free(ndd);

    r = close(fd); assert(r != -1);
}

int
test_main (int argc __attribute__((__unused__)), const char *argv[] __attribute__((__unused__))) {
    test_prefetching();

    return 0;
}