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 // test the kill callback. the lock wait is killed 1/2 of the way through the wait.
40
41 #include "lock_request_unit_test.h"
42
43 namespace toku {
44
45 const uint64_t my_lock_wait_time = 10 * 1000; // 10 seconds
46 const uint64_t my_killed_time = 1 * 1000;
47
48 static int killed_calls = 0;
49 static uint64_t t_last_kill;
50 static uint64_t t_do_kill;
51
my_killed_callback(void)52 static int my_killed_callback(void) {
53 uint64_t t_now = toku_current_time_microsec();
54 if (t_now == t_last_kill)
55 return 0;
56 assert(t_now >= t_last_kill);
57 t_last_kill = t_now;
58 killed_calls++;
59 if (t_now >= t_do_kill)
60 return 1;
61 else
62 return 0;
63 }
64
65 // make sure deadlocks are detected when a lock request starts
test_wait_time_callback(void)66 void lock_request_unit_test::test_wait_time_callback(void) {
67 int r;
68 locktree lt;
69
70 DICTIONARY_ID dict_id = { 1 };
71 lt.create(nullptr, dict_id, dbt_comparator);
72
73 TXNID txnid_a = 1001;
74 lock_request request_a;
75 request_a.create();
76
77 TXNID txnid_b = 2001;
78 lock_request request_b;
79 request_b.create();
80
81 const DBT *one = get_dbt(1);
82
83 // a locks 'one'
84 request_a.set(<, txnid_a, one, one, lock_request::type::WRITE, false);
85 r = request_a.start();
86 assert_zero(r);
87
88 // b tries to lock 'one'
89 request_b.set(<, txnid_b, one, one, lock_request::type::WRITE, false);
90 r = request_b.start();
91 assert(r == DB_LOCK_NOTGRANTED);
92
93 uint64_t t_start = toku_current_time_microsec();
94 t_last_kill = t_start;
95 t_do_kill = t_start + my_lock_wait_time * 1000 / 2;
96 r = request_b.wait(my_lock_wait_time, my_killed_time, my_killed_callback);
97 assert(r == DB_LOCK_NOTGRANTED);
98
99 uint64_t t_end = toku_current_time_microsec();
100 assert(t_end > t_start);
101 uint64_t t_delta = t_end - t_start;
102 // fprintf(stderr, "delta=%" PRIu64 "\n", t_delta);
103 assert(t_delta >= my_lock_wait_time / 2);
104
105 // fprintf(stderr, "killed_calls=%d\n", killed_calls);
106 assert(killed_calls > 0);
107
108 request_b.destroy();
109
110 release_lock_and_retry_requests(<, txnid_a, one, one);
111 request_a.destroy();
112
113 lt.release_reference();
114 lt.destroy();
115 }
116
117 } /* namespace toku */
118
main(void)119 int main(void) {
120 toku::lock_request_unit_test test;
121 test.test_wait_time_callback();
122 return 0;
123 }
124
125