1 /* -*- mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*- */
2 // vim: ft=cpp:expandtab:ts=8:sw=4:softtabstop=4:
3 #ident "$Id$"
4 /*======
5 This file is part of PerconaFT.
6
7
8 Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved.
9
10 PerconaFT is free software: you can redistribute it and/or modify
11 it under the terms of the GNU General Public License, version 2,
12 as published by the Free Software Foundation.
13
14 PerconaFT is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with PerconaFT. If not, see <http://www.gnu.org/licenses/>.
21
22 ----------------------------------------
23
24 PerconaFT is free software: you can redistribute it and/or modify
25 it under the terms of the GNU Affero General Public License, version 3,
26 as published by the Free Software Foundation.
27
28 PerconaFT is distributed in the hope that it will be useful,
29 but WITHOUT ANY WARRANTY; without even the implied warranty of
30 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
31 GNU Affero General Public License for more details.
32
33 You should have received a copy of the GNU Affero General Public License
34 along with PerconaFT. If not, see <http://www.gnu.org/licenses/>.
35 ======= */
36
37 #ident "Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved."
38
39 #include "test.h"
40
41 // verify that prelocking a write range that overlapping a read lock conflicts
42
prelock_range(DBC * cursor,int left,int right)43 static int prelock_range(DBC *cursor, int left, int right) {
44 DBT key_left; dbt_init(&key_left, &left, sizeof left);
45 DBT key_right; dbt_init(&key_right, &right, sizeof right);
46 int r = cursor->c_set_bounds(cursor, &key_left, &key_right, true, 0);
47 return r;
48 }
49
test_write_read(DB_ENV * env,DB * db,uint32_t iso_flags,int expect_r)50 static void test_write_read(DB_ENV *env, DB *db, uint32_t iso_flags, int expect_r) {
51 int r;
52
53 DB_TXN *txn_a = NULL;
54 r = env->txn_begin(env, NULL, &txn_a, iso_flags); assert_zero(r);
55 DB_TXN *txn_b = NULL;
56 r = env->txn_begin(env, NULL, &txn_b, iso_flags); assert_zero(r);
57
58 DBC *cursor_a = NULL;
59 r = db->cursor(db, txn_a, &cursor_a, DB_RMW); assert_zero(r);
60 DBC *cursor_b = NULL;
61 r = db->cursor(db, txn_b, &cursor_b, 0); assert_zero(r);
62
63 r = prelock_range(cursor_a, htonl(10), htonl(100)); assert_zero(r);
64 r = prelock_range(cursor_b, htonl(50), htonl(200)); assert(r == expect_r);
65
66 r = cursor_a->c_close(cursor_a); assert_zero(r);
67 r = cursor_b->c_close(cursor_b); assert_zero(r);
68
69 r = txn_a->commit(txn_a, 0); assert_zero(r);
70 r = txn_b->commit(txn_b, 0); assert_zero(r);
71 }
72
test_main(int argc,char * const argv[])73 int test_main(int argc, char * const argv[]) {
74 int r;
75
76 const char *env_dir = TOKU_TEST_FILENAME;
77 const char *db_filename = "prelocktest";
78
79 parse_args(argc, argv);
80
81 char rm_cmd[strlen(env_dir) + strlen("rm -rf ") + 1];
82 snprintf(rm_cmd, sizeof(rm_cmd), "rm -rf %s", env_dir);
83 r = system(rm_cmd); assert_zero(r);
84
85 r = toku_os_mkdir(env_dir, S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH); assert_zero(r);
86
87 DB_ENV *env = NULL;
88 r = db_env_create(&env, 0); assert_zero(r);
89 int env_open_flags = DB_CREATE | DB_PRIVATE | DB_INIT_MPOOL | DB_INIT_TXN | DB_INIT_LOCK | DB_INIT_LOG;
90 r = env->open(env, env_dir, env_open_flags, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH); assert_zero(r);
91
92 // create the db
93 DB *db = NULL;
94 r = db_create(&db, env, 0); assert_zero(r);
95 DB_TXN *create_txn = NULL;
96 r = env->txn_begin(env, NULL, &create_txn, 0); assert_zero(r);
97 r = db->open(db, create_txn, db_filename, NULL, DB_BTREE, DB_CREATE, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH); assert_zero(r);
98 r = create_txn->commit(create_txn, 0); assert_zero(r);
99
100 test_write_read(env, db, DB_SERIALIZABLE, DB_LOCK_NOTGRANTED);
101
102 r = db->close(db, 0); assert_zero(r);
103
104 r = env->close(env, 0); assert_zero(r);
105 return 0;
106 }
107