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
|
/*
* This file is open source software, licensed to you under the terms
* of the Apache License, Version 2.0 (the "License"). See the NOTICE file
* distributed with this work for additional information regarding copyright
* ownership. You may not use this file except in compliance with the License.
*
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
/*
* Copyright 2016 ScyllaDB
*/
#define BOOST_TEST_MODULE core
#include <boost/test/included/unit_test.hpp>
#include <pthread.h>
#include <seastar/util/defer.hh>
#include <seastar/core/posix.hh>
#include <seastar/util/backtrace.hh>
using namespace seastar;
void foo() {
throw std::runtime_error("foo");
}
// Exploits issue #1725
BOOST_AUTO_TEST_CASE(test_signal_mask_is_preserved_on_unwinding) {
sigset_t mask;
sigset_t old;
sigfillset(&mask);
auto res = ::pthread_sigmask(SIG_SETMASK, &mask, &old);
throw_pthread_error(res);
// Check which signals we actually managed to block
res = ::pthread_sigmask(SIG_SETMASK, NULL, &mask);
throw_pthread_error(res);
try {
foo();
} catch (...) {
// ignore
}
// Check backtrace()
{
size_t count = 0;
backtrace([&count] (auto) { ++count; });
BOOST_REQUIRE(count > 0);
}
{
sigset_t mask2;
auto res = ::pthread_sigmask(SIG_SETMASK, &old, &mask2);
throw_pthread_error(res);
for (int i = 1; i < NSIG; ++i) {
BOOST_REQUIRE(sigismember(&mask2, i) == sigismember(&mask, i));
}
}
}
|
