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/* -*- mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*- */
// vim: ft=cpp:expandtab:ts=8:sw=4:softtabstop=4:
#ident "$Id$"
/*======
This file is part of PerconaFT.


Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved.

    PerconaFT is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License, version 2,
    as published by the Free Software Foundation.

    PerconaFT 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.

    You should have received a copy of the GNU General Public License
    along with PerconaFT.  If not, see <http://www.gnu.org/licenses/>.

----------------------------------------

    PerconaFT is free software: you can redistribute it and/or modify
    it under the terms of the GNU Affero General Public License, version 3,
    as published by the Free Software Foundation.

    PerconaFT 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 Affero General Public License for more details.

    You should have received a copy of the GNU Affero General Public License
    along with PerconaFT.  If not, see <http://www.gnu.org/licenses/>.
======= */

#ident "Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved."

// 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, 1);
    DBT *dest_key = &dest_key_arrays->dbts[0];
    dest_key->flags = 0;
    dest_key->size=0;
    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 *UU(src_key), 
    const DBT *UU(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->flags = 0;
    dest_val->flags = 0;

    uint8_t src_val_data;
    assert(src_val->size == 1);
    src_val_data = *(uint8_t *)src_val->data;
    assert(src_val_data == 100);
    dest_key->size=0;
    dest_val->size=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 = 1;


    //
    // now do an update broadcast that will set the val to something bigger
    //
    val_data = 100;
    IN_TXN_COMMIT(env, NULL, txn_broadcast, 0, {
            { int chk_r = db->update_broadcast(db, txn_broadcast, &val, DB_IS_RESETTING_OP); CKERR(chk_r); }
        });

    //
    // 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); }
        });

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