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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."

#include <stdio.h>
#include <assert.h>
#include <stdint.h>
#include <inttypes.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/stat.h>
#include <db.h>
#include <toku_byteswap.h>
#include <portability/toku_path.h>

static int verbose = 0;
static uint64_t maxk = 100000;

static int usage(const char *prog) {
    fprintf(stderr, "%s: run single row insertions with prelocking\n", prog);
    fprintf(stderr, "[--n %" PRIu64 "]\n", maxk);
    return 1;
}

static int inserter(DB_ENV *env, DB *db, uint64_t _maxk, int putflags, int expectr) {
    if (verbose) printf("%p %p\n", env, db);
    int r;
    for (uint64_t k = 0; k < _maxk; k++) {
        
        if (verbose) printf("%" PRIu64 "\n", k);

        DB_TXN *txn;
        r = env->txn_begin(env, NULL, &txn, 0);
        assert(r == 0);

        r = db->pre_acquire_table_lock(db, txn);
        assert(r == 0);

        uint64_t kk = bswap_64(k);
        DBT key = { .data = &kk, .size = sizeof kk };
        DBT val = { .data = &k, .size = sizeof k };
        r = db->put(db, txn, &key, &val, putflags);
        assert(r == expectr);

        r = txn->commit(txn, DB_TXN_NOSYNC);
        assert(r == 0);
    }

    return 0;
}

static int env_init(DB_ENV **envptr, const char *envdir) {
    int r;
    DB_ENV *env;

    r = db_env_create(&env, 0);
    if (r == 0) {
        // env setup

        // env open
        r = env->open(env, envdir, DB_CREATE+DB_PRIVATE+DB_INIT_LOCK+DB_INIT_LOG+DB_INIT_MPOOL+DB_INIT_TXN, 0777);
    }
    if (r == 0)
        *envptr = env;
    return r;
}

static int db_init(DB_ENV *env, const char *dbname, DB **dbptr) {
    int r;
    DB *db;

    r = db_create(&db, env, 0);
    if (r == 0) {
        // db create
        r = db->open(db, NULL, dbname, NULL, DB_BTREE, DB_CREATE, 0777);
        if (r != 0) {
            r = db->close(db, 0);
            assert(r == 0);
        }
    }
    if (r == 0)
        *dbptr = db;
    return r;
}   

int main(int argc, char *argv[]) {
    int r;

    for (int i = 1; i < argc; i++) {
        char *arg = argv[i];
        if (strcmp(arg, "--n") == 0 && i+1 < argc) {
            maxk = atoi(argv[++i]);
            continue;
        }
        if (strcmp(arg, "--verbose") == 0 || strcmp(arg, "-v") == 0) {
            verbose++;
            continue;
        }
        if (strcmp(arg, "-q") == 0) {
            verbose = 0;
            continue;
        }

        return usage(argv[0]);
    }

    const char *envdir = TOKU_TEST_FILENAME;
    char cmd[TOKU_PATH_MAX+sizeof("rm -rf ")];
    snprintf(cmd, sizeof(cmd), "rm -rf %s", TOKU_TEST_FILENAME);
    r = system(cmd);
    assert(r == 0);
    r = mkdir(envdir, 0777);
    assert(r == 0);

    DB_ENV *env;
    r = env_init(&env, envdir);
    assert(r == 0);

    DB *db;
    r = db_init(env, "db0", &db);
    assert(r == 0);

    r = inserter(env, db, maxk, 0, 0);
    assert(r == 0);

    r = inserter(env, db, maxk, DB_NOOVERWRITE, DB_KEYEXIST);
    assert(r == 0);

    r = db->close(db, 0);
    assert(r == 0);

    r = env->close(env, 0);
    assert(r == 0);

    return 0;
}