1 | //===----------------------------------------------------------------------===// |
2 | // |
3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
4 | // See https://llvm.org/LICENSE.txt for license information. |
5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
6 | // |
7 | //===----------------------------------------------------------------------===// |
8 | |
9 | // UNSUPPORTED: c++11, c++14 |
10 | // UNSUPPORTED: no-threads |
11 | |
12 | // UNSUPPORTED: !libcpp-has-legacy-debug-mode, c++03 |
13 | |
14 | // test multithreaded container debugging |
15 | |
16 | #include <cassert> |
17 | #include <cstddef> |
18 | #include <deque> |
19 | #include <list> |
20 | #include <thread> |
21 | #include <vector> |
22 | |
23 | template <typename Container> |
24 | Container makeContainer(int size) { |
25 | Container c; |
26 | typedef typename Container::value_type ValueType; |
27 | for (int i = 0; i < size; ++i) |
28 | c.insert(c.end(), ValueType(i)); |
29 | assert(c.size() == static_cast<std::size_t>(size)); |
30 | return c; |
31 | } |
32 | |
33 | template <typename Container> |
34 | void ThreadUseIter() { |
35 | const std::size_t maxRounds = 7; |
36 | struct TestRunner{ |
37 | void operator()() { |
38 | for (std::size_t count = 0; count < maxRounds; count++) { |
39 | const std::size_t containerCount = 11; |
40 | std::vector<Container> containers; |
41 | std::vector<typename Container::iterator> iterators; |
42 | for (std::size_t containerIndex = 0; containerIndex < containerCount; containerIndex++) { |
43 | containers.push_back(makeContainer<Container>(3)); |
44 | Container& c = containers.back(); |
45 | iterators.push_back(c.begin()); |
46 | iterators.push_back(c.end()); |
47 | } |
48 | } |
49 | } |
50 | }; |
51 | |
52 | TestRunner r; |
53 | const std::size_t threadCount = 4; |
54 | std::vector<std::thread> threads; |
55 | for (std::size_t count = 0; count < threadCount; count++) |
56 | threads.emplace_back(r); |
57 | r(); |
58 | for (std::size_t count = 0; count < threadCount; count++) |
59 | threads[count].join(); |
60 | } |
61 | |
62 | int main(int, char**) { |
63 | ThreadUseIter<std::vector<int> >(); |
64 | return 0; |
65 | } |
66 | |