/* -*- 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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  You should have received a copy of the GNU General Public License
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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.
  This software is covered by US Patent No. 8,489,638.

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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 txn commit after db close

#include "test.h"
#include <sys/stat.h>

DB_ENV *null_env = NULL;
DB *null_db = NULL;
DB_TXN *null_txn = NULL;
DBC *null_cursor = NULL;

static void create_non_empty(int n, const char *dirname) {
    DB_ENV *env = null_env;
    int r;
    r = db_env_create(&env, 0);   assert(r == 0); assert(env != NULL);
    r = env->set_redzone(env, 0); assert(r == 0);
    r = env->open(env, 
                  dirname,
                  DB_INIT_MPOOL+DB_INIT_LOG+DB_INIT_LOCK+DB_INIT_TXN+DB_PRIVATE+DB_CREATE, 
                  S_IRWXU+S_IRWXG+S_IRWXO); 
    assert(r == 0);

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

    DB *db = null_db;
    r = db_create(&db, env, 0); assert(r == 0); assert(db != NULL);

    r = db->open(db, txn, "test.db", 0, DB_BTREE, DB_CREATE, S_IRWXU+S_IRWXG+S_IRWXO); 
    assert(r == 0);

    int i;
    for (i=n; i<2*n; i++) {
        DBT key, val;
        int k = toku_htonl(i);
        r = db->put(db, txn, dbt_init(&key, &k, sizeof k), dbt_init(&val, &i, sizeof i), 0);
        assert(r == 0);
    }

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

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

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

static void root_fifo_verify(DB_ENV *env, int n, int expectn) {
    if (verbose) printf("%s:%d %d %d\n", __FUNCTION__, __LINE__, n, expectn);

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

    DB *db = null_db;
    r = db_create(&db, env, 0); assert(r == 0); assert(db != NULL);
    r = db->open(db, txn, "test.db", 0, DB_BTREE, DB_CREATE, S_IRWXU+S_IRWXG+S_IRWXO); 
    assert(r == 0);

    DBC *cursor = null_cursor;
    r = db->cursor(db, txn, &cursor, 0); assert(r == 0);
    int i;
    for (i = 0; ; i++) {
        DBT key, val;
        memset(&key, 0, sizeof key); memset(&val, 0, sizeof val);
        r = cursor->c_get(cursor, &key, &val, DB_NEXT);
        if (r != 0) break;
        int k;
        assert(key.size == sizeof k);
        memcpy(&k, key.data, key.size);
        assert((int)toku_ntohl(k) == i);
    }
    assert(i == expectn);

    r = cursor->c_close(cursor); assert(r == 0); cursor = null_cursor;
    
    r = txn->commit(txn, 0); assert(r == 0); txn = null_txn;

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

static void root_fifo_41(int n, int ntxn, bool do_populate) {
    if (verbose) printf("%s:%d %d\n", __FUNCTION__, __LINE__, n);
    int r;

    const char *dirname = TOKU_TEST_FILENAME;

    // create the env
    toku_os_recursive_delete(dirname);
    toku_os_mkdir(dirname, S_IRWXU+S_IRWXG+S_IRWXO);

    // populate
    if (do_populate)
        create_non_empty(n, dirname);

    DB_ENV *env = null_env;
    r = db_env_create(&env, 0); assert(r == 0); assert(env != NULL);
    r = env->set_redzone(env, 0); assert(r == 0);
    r = env->open(env, 
                  dirname, 
                  DB_INIT_MPOOL+DB_INIT_LOG+DB_INIT_LOCK+DB_INIT_TXN+DB_PRIVATE+DB_CREATE, 
                  S_IRWXU+S_IRWXG+S_IRWXO); 
    assert(r == 0);
    {
        DB_TXN *txn;
        DB *db = null_db;
        r = env->txn_begin(env, null_txn, &txn, 0); CKERR(r);
        r = db_create(&db, env, 0); CKERR(r);
        r = db->open(db, txn, "test.db", 0, DB_BTREE, DB_CREATE, S_IRWXU+S_IRWXG+S_IRWXO); 
        CKERR(r);
        r = txn->commit(txn, 0); CKERR(r);
        r = db->close(db, 0); CKERR(r);
    }

    DB_TXN *txn[ntxn];
    int i;
    for (i=0; i<ntxn; i++) {
        r = env->txn_begin(env, null_txn, &txn[i], 0); assert(r == 0); assert(txn[i] != NULL);
    }

    for (i=0; i<n; i++) {
        DB *db = null_db;
        r = db_create(&db, env, 0); assert(r == 0); assert(db != NULL);

        r = db->open(db, txn[i % ntxn], "test.db", 0, DB_BTREE, DB_CREATE, S_IRWXU+S_IRWXG+S_IRWXO); 
        assert(r == 0);

        DBT key, val;
        int k = toku_htonl(i);
        r = db->put(db, txn[i % ntxn], dbt_init(&key, &k, sizeof k), dbt_init(&val, &i, sizeof i), 0);
        assert(r == 0);

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

    for (i=0; i<ntxn; i++) {
        r = txn[i]->commit(txn[i], 0); assert(r == 0);
    }

    // verify the db
    root_fifo_verify(env, n, do_populate ? 2*n : n);

    // cleanup
    r = env->close(env, 0); assert(r == 0); env = null_env;
}

static int parseint (char const *str) {
    char *end;
    errno=0;
    int v = strtol(str, &end, 10);
    if (errno!=0 || *end!=0) {
	fprintf(stderr, "This argument should be an int: %s\n", str);
	exit(1);
    }
    return v;
}

int test_main(int argc, char *const argv[]) {
    int i;
    int n = -1;
    int ntxn = -1;
    bool do_populate = false;

    // parse_args(argc, argv);
    for (i = 1; i < argc; i++) {
        if (strcmp(argv[i], "-v") == 0) {
            verbose = 1;
        } else if (strcmp(argv[i], "-n") == 0) {
	    assert(i+1 < argc);
	    n = parseint(argv[++i]);
        } else if (strcmp(argv[i], "-ntxn") == 0) {
	    assert(i+1 < argc);
	    ntxn = parseint(argv[++i]);
        } else if (strcmp(argv[i], "-populate") == 0) {
            do_populate = true;
	} else {
	    fprintf(stderr, "What is this argument? %s\n", argv[i]);
	    exit(1);
	}
    }
              
    if (n >= 0)
        root_fifo_41(n, ntxn == -1 ? 1 : ntxn, do_populate);
    else {
        for (i=0; i<100; i++) {
            for (ntxn=1; ntxn<=4; ntxn++) {
                root_fifo_41(i, ntxn, false);
                root_fifo_41(i, ntxn, true);
            }
        }
    }
    return 0;
}

