projects / ceph.git / blame
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|---|---|---|
| 7c673cae FG |
1 | //===----------------------------------------------------------------------===// |
| 2 | // | |
| 3 | // The LLVM Compiler Infrastructure | |
| 4 | // | |
| 5 | // This file is dual licensed under the MIT and the University of Illinois Open | |
| 6 | // Source Licenses. See LICENSE.TXT for details. | |
| 7 | // | |
| 8 | //===----------------------------------------------------------------------===// | |
| 9 | ||
| 10 | // Copyright (C) 2011 Vicente J. Botet Escriba | |
| 11 | // | |
| 12 | // Distributed under the Boost Software License, Version 1.0. (See accompanying | |
| 13 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
| 14 | ||
| 15 | // <boost/thread/locks.hpp> | |
| 16 | ||
| 17 | // template <class Mutex> class upgrade_lock; | |
| 18 | ||
| 19 | // template <class Rep, class Period> | |
| 20 | // bool try_lock_for(const chrono::duration<Rep, Period>& rel_time); | |
| 21 | ||
| 22 | #include <boost/thread/lock_types.hpp> | |
| 23 | //#include <boost/thread/shared_mutex.hpp> | |
| 24 | #include <boost/detail/lightweight_test.hpp> | |
| 25 | ||
| 26 | bool try_lock_for_called = false; | |
| 27 | ||
| 28 | typedef boost::chrono::milliseconds ms; | |
| 29 | ||
| 30 | struct shared_mutex | |
| 31 | { | |
| 32 | template <class Rep, class Period> | |
| 33 | bool try_lock_upgrade_for(const boost::chrono::duration<Rep, Period>& rel_time) | |
| 34 | { | |
| 35 | BOOST_TEST(rel_time == ms(5)); | |
| 36 | try_lock_for_called = !try_lock_for_called; | |
| 37 | return try_lock_for_called; | |
| 38 | } | |
| 39 | void unlock_upgrade() | |
| 40 | { | |
| 41 | } | |
| 42 | }; | |
| 43 | ||
| 44 | shared_mutex m; | |
| 45 | ||
| 46 | int main() | |
| 47 | { | |
| 48 | boost::upgrade_lock<shared_mutex> lk(m, boost::defer_lock); | |
| 49 | BOOST_TEST(lk.try_lock_for(ms(5)) == true); | |
| 50 | BOOST_TEST(try_lock_for_called == true); | |
| 51 | BOOST_TEST(lk.owns_lock() == true); | |
| 52 | try | |
| 53 | { | |
| 54 | lk.try_lock_for(ms(5)); | |
| 55 | BOOST_TEST(false); | |
| 56 | } | |
| 57 | catch (boost::system::system_error& e) | |
| 58 | { | |
| 59 | BOOST_TEST(e.code().value() == boost::system::errc::resource_deadlock_would_occur); | |
| 60 | } | |
| 61 | lk.unlock(); | |
| 62 | BOOST_TEST(lk.try_lock_for(ms(5)) == false); | |
| 63 | BOOST_TEST(try_lock_for_called == false); | |
| 64 | BOOST_TEST(lk.owns_lock() == false); | |
| 65 | lk.release(); | |
| 66 | try | |
| 67 | { | |
| 68 | lk.try_lock_for(ms(5)); | |
| 69 | BOOST_TEST(false); | |
| 70 | } | |
| 71 | catch (boost::system::system_error& e) | |
| 72 | { | |
| 73 | BOOST_TEST(e.code().value() == boost::system::errc::operation_not_permitted); | |
| 74 | } | |
| 75 | ||
| 76 | return boost::report_errors(); | |
| 77 | } | |
| 78 |