/* -*- 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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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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*/

#ident "Copyright (c) 2007-2013 Tokutek Inc.  All rights reserved."
#ident "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."
// test that an update calls back into the update function

#include "test.h"

const int envflags = DB_INIT_MPOOL|DB_CREATE|DB_THREAD |DB_INIT_LOCK|DB_INIT_LOG|DB_INIT_TXN|DB_PRIVATE;

DB_ENV *env;


static int update_fun(DB *UU(db),
                      const DBT *UU(key),
                      const DBT *UU(old_val), const DBT *extra,
                      void (*set_val)(const DBT *new_val,
                                         void *set_extra),
                      void *set_extra) {
    set_val(extra, set_extra);
    return 0;
}


static int generate_row_for_del(
    DB *UU(dest_db), 
    DB *UU(src_db),
    DBT_ARRAY *dest_key_arrays,
    const DBT *UU(src_key), 
    const DBT *UU(src_val)
    )
{
    toku_dbt_array_resize(dest_key_arrays, 0);
    assert(false);
    return 0;
}

static int generate_row_for_put(
    DB *UU(dest_db), 
    DB *UU(src_db),
    DBT_ARRAY *dest_key_arrays,
    DBT_ARRAY *dest_val_arrays,
    const DBT *src_key, 
    const DBT *src_val
    ) 
{
    toku_dbt_array_resize(dest_key_arrays, 1);
    toku_dbt_array_resize(dest_val_arrays, 1);
    DBT *dest_key = &dest_key_arrays->dbts[0];
    DBT *dest_val = &dest_val_arrays->dbts[0];
    dest_key->size=src_key->size;
    dest_key->data=src_key->data;
    dest_key->flags = 0;
    dest_val->size=src_val->size;
    dest_val->data=src_val->data;
    dest_val->flags = 0;
    return 0;
}

static void setup (void) {
    toku_os_recursive_delete(TOKU_TEST_FILENAME);
    { int chk_r = toku_os_mkdir(TOKU_TEST_FILENAME, S_IRWXU+S_IRWXG+S_IRWXO); CKERR(chk_r); }
    { int chk_r = db_env_create(&env, 0); CKERR(chk_r); }
    env->set_errfile(env, stderr);
    { int chk_r = env->set_generate_row_callback_for_put(env,generate_row_for_put); CKERR(chk_r); }
    { int chk_r = env->set_generate_row_callback_for_del(env,generate_row_for_del); CKERR(chk_r); }
    env->set_update(env, update_fun);
    { int chk_r = env->open(env, TOKU_TEST_FILENAME, envflags, S_IRWXU+S_IRWXG+S_IRWXO); CKERR(chk_r); }
}

static void cleanup (void) {
    { int chk_r = env->close(env, 0); CKERR(chk_r); }
}

static void run_test(void) {
    DB* db = NULL;
    DB_LOADER* loader = NULL;
    DBT key, val;
    uint32_t mult_db_flags = 0;
    uint32_t mult_dbt_flags = DB_DBT_REALLOC;
    uint8_t key_data = 0;
    uint8_t val_data = 0;
    

    IN_TXN_COMMIT(env, NULL, txn_create, 0, {
            { int chk_r = db_create(&db, env, 0); CKERR(chk_r); }
            { int chk_r = db->open(db, txn_create, "foo.db", NULL, DB_BTREE, DB_CREATE, 0666); CKERR(chk_r); }
        });


    dbt_init(&key,&key_data,sizeof(uint8_t));
    dbt_init(&val,&val_data,sizeof(uint8_t));

    val_data = 100;

    //
    // now create a loader
    //
    IN_TXN_COMMIT(env, NULL, txn_loader, 0, {
        // create DB
            { int chk_r = env->create_loader(
            env,
            txn_loader,
            &loader,
            db,
            1,
            &db,
            &mult_db_flags,
            &mult_dbt_flags,
            0
                    ); CKERR(chk_r); }
            { int chk_r = loader->put(loader, &key, &val); CKERR(chk_r); }
            { int chk_r = loader->close(loader); CKERR(chk_r); }
        });

    val_data = 101;
    IN_TXN_COMMIT(env, NULL, txn_update, 0, {
            { int chk_r = db->update(db, txn_update, &key, &val, 0); CKERR(chk_r); }
        });

    key_data = 11;
    val_data = 11;
    IN_TXN_COMMIT(env, NULL, txn_update, 0, {
            { int chk_r = db->update(db, txn_update, &key, &val, 0); CKERR(chk_r); }
        });

    
    DBC *cursor = NULL;
    IN_TXN_COMMIT(env, NULL, txn_3, 0, {
            { int chk_r = db->cursor(db, txn_3, &cursor, 0); CKERR(chk_r); }
            { int chk_r = cursor->c_get(cursor, &key, &val, DB_NEXT); CKERR(chk_r); }
        assert(key.size == sizeof(uint8_t));
        assert(val.size == sizeof(uint8_t));
        assert(*(uint8_t *)(key.data) == 0);
        assert(*(uint8_t *)(val.data) == 101);
        { int chk_r = cursor->c_get(cursor, &key, &val, DB_NEXT); CKERR(chk_r); }
        assert(key.size == sizeof(uint8_t));
        assert(val.size == sizeof(uint8_t));
        assert(*(uint8_t *)(key.data) == 11);
        assert(*(uint8_t *)(val.data) == 11);
        { int chk_r = cursor->c_close(cursor); CKERR(chk_r); }
    });
    
    { int chk_r = db->close(db, 0); CKERR(chk_r); }

}

int test_main (int argc, char * const argv[]) {
    parse_args(argc, argv);
    setup();
    run_test();
    cleanup();
    return 0;
}
