1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
|
/* -*- 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 isolation works right for subtransactions.
// In particular, check to see what happens if a subtransaction has different isolation level from its parent.
#include "test.h"
const int envflags = DB_INIT_MPOOL|DB_CREATE|DB_THREAD |DB_INIT_LOCK|DB_INIT_LOG|DB_INIT_TXN|DB_PRIVATE;
int test_main (int argc, char * const argv[]) {
parse_args(argc, argv);
int useseed;
{
struct timeval tv;
gettimeofday(&tv, 0);
useseed = tv.tv_sec+tv.tv_usec*997; // magic: 997 is a prime, and a million (microseconds/second) times 997 is still 32 bits.
}
int r;
toku_os_recursive_delete(TOKU_TEST_FILENAME);
toku_os_mkdir(TOKU_TEST_FILENAME, S_IRWXU+S_IRWXG+S_IRWXO);
DB_ENV *env;
r = db_env_create(&env, 0);
CKERR(r);
env->set_errfile(env, stderr);
r = env->open(env, TOKU_TEST_FILENAME, envflags, S_IRWXU+S_IRWXG+S_IRWXO);
CKERR(r);
db_env_set_mvcc_garbage_collection_verification(1);
int max_txns = 400;
int num_runs = 2000;
DB_TXN* txns[max_txns];
memset(txns, 0, sizeof(txns));
int num_txns = 0;
int i;
if (verbose) printf("seed=%d\n", useseed);
srandom(useseed);
for (i = 0; i < num_runs; i++) {
int rand_num = random()%max_txns;
/*
if (i%50 == 0) {
printf("rand_num %d\n", rand_num);
printf("num_txns %d\n", num_txns);
printf("iteration %d\n", i);
}
*/
if (rand_num >= num_txns) {
// add a txn
assert(txns[num_txns] == NULL);
// 7 out of 8 times, it is snapshot, otherwise, serializable
int is_snapshot = (random() % 8 != 0);
r = env->txn_begin(env, NULL, &txns[num_txns], is_snapshot ? DB_TXN_SNAPSHOT : 0);
CKERR(r);
num_txns++;
}
else {
// commit the txn
r = txns[rand_num]->commit(txns[rand_num], 0);
CKERR(r);
int j;
for (j = rand_num; j < num_txns-1; j++) {
txns[j] = txns[j+1];
}
txns[num_txns-1] = NULL;
num_txns--;
}
}
for (i = 0; i < num_txns; i++) {
r = txns[i]->commit(txns[i], 0);
CKERR(r);
}
r = env->close(env, 0);
CKERR(r);
return 0;
}
|
