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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;

int updates_called[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };

// the commands are: byte 1 is "nop" "add" or "del".  Byte 2 is the amount to add.
enum cmd { CNOP, CADD, CDEL };

static int update_fun(DB *UU(db),
                      const DBT *key,
                      const DBT *UU(old_val), const DBT *UU(extra),
                      void UU((*set_val)(const DBT *new_val,
                                         void *set_extra)),
                      void *UU(set_extra)) {
    unsigned int *k;
    assert(key->size == sizeof(*k));
    CAST_FROM_VOIDP(k, key->data);
    assert(updates_called[*k] == 0);
    updates_called[*k] = 1;
    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);
    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(bool is_resetting) {
    DB *db;
    uint32_t update_flags = is_resetting ? DB_IS_RESETTING_OP : 0;
    for (unsigned int i = 0;
         i < (sizeof(updates_called) / sizeof(updates_called[0])); ++i) {
        updates_called[i] = 0;
    }

    {
        DB_TXN* txna = NULL;
        { int chk_r = env->txn_begin(env, NULL, &txna, 0); CKERR(chk_r); }

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

        {
            DBT key, val;
            unsigned int i;
            DBT *keyp = dbt_init(&key, &i, sizeof(i));
            DBT *valp = dbt_init(&val, "a", 2);
            for (i = 0; i < (sizeof(updates_called) / sizeof(updates_called[0])); ++i) {
                { int chk_r = db->put(db, txna, keyp, valp, 0); CKERR(chk_r); }
            }
        }

        { int chk_r = txna->commit(txna, 0); CKERR(chk_r); }
    }

    {
        DB_TXN *txnb = NULL;
        { int chk_r = env->txn_begin(env, NULL, &txnb, 0); CKERR(chk_r); }

        {
            DBT nullextra;
            DBT *nullextrap = dbt_init(&nullextra, NULL, 0);
            { int chk_r = db->update_broadcast(db, txnb, nullextrap, update_flags); CKERR(chk_r); }
        }

        { int chk_r = txnb->commit(txnb, 0); CKERR(chk_r); }
    }

    { int chk_r = db->close(db, 0); CKERR(chk_r); }

    for (unsigned int i = 0;
         i < (sizeof(updates_called) / sizeof(updates_called[0])); ++i) {
        assert(updates_called[i]);
    }

}

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