projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
1 | |
| 2 | // Copyright Oliver Kowalke 2013. | |
| 3 | // Distributed under the Boost Software License, Version 1.0. | |
| 4 | // (See accompanying file LICENSE_1_0.txt or copy at | |
| 5 | // http://www.boost.org/LICENSE_1_0.txt) | |
| 6 | ||
| 7 | #ifndef BOOST_FIBERS_TIMED_MUTEX_H | |
| 8 | #define BOOST_FIBERS_TIMED_MUTEX_H | |
| 9 | ||
| 10 | #include <chrono> | |
| 11 | ||
| 12 | #include <boost/assert.hpp> | |
| 13 | #include <boost/config.hpp> | |
| 14 | ||
| 15 | #include <boost/fiber/context.hpp> | |
| 16 | #include <boost/fiber/detail/config.hpp> | |
| 17 | #include <boost/fiber/detail/convert.hpp> | |
| 18 | #include <boost/fiber/detail/spinlock.hpp> | |
| 19 | ||
| 20 | #ifdef BOOST_HAS_ABI_HEADERS | |
| 21 | # include BOOST_ABI_PREFIX | |
| 22 | #endif | |
| 23 | ||
| 24 | #ifdef _MSC_VER | |
| 25 | # pragma warning(push) | |
| 26 | # pragma warning(disable:4251) | |
| 27 | #endif | |
| 28 | ||
| 29 | namespace boost { | |
| 30 | namespace fibers { | |
| 31 | ||
| 32 | class condition_variable; | |
| 33 | ||
| 34 | class BOOST_FIBERS_DECL timed_mutex { | |
| 35 | private: | |
| 36 | friend class condition_variable; | |
| 37 | ||
| 38 | typedef context::wait_queue_t wait_queue_t; | |
| 39 | ||
| 40 | context * owner_{ nullptr }; | |
| 41 | wait_queue_t wait_queue_{}; | |
| 42 | detail::spinlock wait_queue_splk_{}; | |
| 43 | ||
| 44 | bool try_lock_until_( std::chrono::steady_clock::time_point const& timeout_time) noexcept; | |
| 45 | ||
| 46 | public: | |
| 47 | timed_mutex() = default; | |
| 48 | ||
| 49 | ~timed_mutex() { | |
| 50 | BOOST_ASSERT( nullptr == owner_); | |
| 51 | BOOST_ASSERT( wait_queue_.empty() ); | |
| 52 | } | |
| 53 | ||
| 54 | timed_mutex( timed_mutex const&) = delete; | |
| 55 | timed_mutex & operator=( timed_mutex const&) = delete; | |
| 56 | ||
| 57 | void lock(); | |
| 58 | ||
| 59 | bool try_lock(); | |
| 60 | ||
| 61 | template< typename Clock, typename Duration > | |
| 62 | bool try_lock_until( std::chrono::time_point< Clock, Duration > const& timeout_time_) { | |
| 63 | std::chrono::steady_clock::time_point timeout_time( | |
| 64 | detail::convert( timeout_time_) ); | |
| 65 | return try_lock_until_( timeout_time); | |
| 66 | } | |
| 67 | ||
| 68 | template< typename Rep, typename Period > | |
| 69 | bool try_lock_for( std::chrono::duration< Rep, Period > const& timeout_duration) { | |
| 70 | return try_lock_until_( std::chrono::steady_clock::now() + timeout_duration); | |
| 71 | } | |
| 72 | ||
| 73 | void unlock(); | |
| 74 | }; | |
| 75 | ||
| 76 | }} | |
| 77 | ||
| 78 | #ifdef _MSC_VER | |
| 79 | # pragma warning(pop) | |
| 80 | #endif | |
| 81 | ||
| 82 | #ifdef BOOST_HAS_ABI_HEADERS | |
| 83 | # include BOOST_ABI_SUFFIX | |
| 84 | #endif | |
| 85 | ||
| 86 | #endif // BOOST_FIBERS_TIMED_MUTEX_H |