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 | // based on boost::interprocess::sync::interprocess_spinlock | |
| 8 | ||
| 9 | #ifndef BOOST_FIBERS_RECURSIVE_TIMED_MUTEX_H | |
| 10 | #define BOOST_FIBERS_RECURSIVE_TIMED_MUTEX_H | |
| 11 | ||
| 12 | #include <chrono> | |
| 13 | #include <cstddef> | |
| 14 | ||
| 15 | #include <boost/config.hpp> | |
| 16 | ||
| 17 | #include <boost/assert.hpp> | |
| 18 | ||
| 19 | #include <boost/fiber/context.hpp> | |
| 20 | #include <boost/fiber/detail/config.hpp> | |
| 21 | #include <boost/fiber/detail/convert.hpp> | |
| 22 | #include <boost/fiber/detail/spinlock.hpp> | |
| 23 | ||
| 24 | #ifdef BOOST_HAS_ABI_HEADERS | |
| 25 | # include BOOST_ABI_PREFIX | |
| 26 | #endif | |
| 27 | ||
| 28 | #ifdef _MSC_VER | |
| 29 | # pragma warning(push) | |
| 30 | # pragma warning(disable:4251) | |
| 31 | #endif | |
| 32 | ||
| 33 | namespace boost { | |
| 34 | namespace fibers { | |
| 35 | ||
| 36 | class condition_variable; | |
| 37 | ||
| 38 | class BOOST_FIBERS_DECL recursive_timed_mutex { | |
| 39 | private: | |
| 40 | friend class condition_variable; | |
| 41 | ||
| f67539c2 | 42 | using wait_queue_type = context::wait_queue_t; |
| 7c673cae | 43 | |
| b32b8144 FG |
44 | detail::spinlock wait_queue_splk_{}; |
| 45 | wait_queue_type wait_queue_{}; | |
| 7c673cae FG |
46 | context * owner_{ nullptr }; |
| 47 | std::size_t count_{ 0 }; | |
| 7c673cae FG |
48 | |
| 49 | bool try_lock_until_( std::chrono::steady_clock::time_point const& timeout_time) noexcept; | |
| 50 | ||
| 51 | public: | |
| 52 | recursive_timed_mutex() = default; | |
| 53 | ||
| 54 | ~recursive_timed_mutex() { | |
| 55 | BOOST_ASSERT( nullptr == owner_); | |
| 56 | BOOST_ASSERT( 0 == count_); | |
| 57 | BOOST_ASSERT( wait_queue_.empty() ); | |
| 58 | } | |
| 59 | ||
| 60 | recursive_timed_mutex( recursive_timed_mutex const&) = delete; | |
| 61 | recursive_timed_mutex & operator=( recursive_timed_mutex const&) = delete; | |
| 62 | ||
| 63 | void lock(); | |
| 64 | ||
| 65 | bool try_lock() noexcept; | |
| 66 | ||
| 67 | template< typename Clock, typename Duration > | |
| 68 | bool try_lock_until( std::chrono::time_point< Clock, Duration > const& timeout_time_) { | |
| b32b8144 | 69 | std::chrono::steady_clock::time_point timeout_time = detail::convert( timeout_time_); |
| 7c673cae FG |
70 | return try_lock_until_( timeout_time); |
| 71 | } | |
| 72 | ||
| 73 | template< typename Rep, typename Period > | |
| 74 | bool try_lock_for( std::chrono::duration< Rep, Period > const& timeout_duration) { | |
| 75 | return try_lock_until_( std::chrono::steady_clock::now() + timeout_duration); | |
| 76 | } | |
| 77 | ||
| 78 | void unlock(); | |
| 79 | }; | |
| 80 | ||
| 81 | }} | |
| 82 | ||
| 83 | #ifdef _MSC_VER | |
| 84 | # pragma warning(pop) | |
| 85 | #endif | |
| 86 | ||
| 87 | #ifdef BOOST_HAS_ABI_HEADERS | |
| 88 | # include BOOST_ABI_SUFFIX | |
| 89 | #endif | |
| 90 | ||
| 91 | #endif // BOOST_FIBERS_RECURSIVE_TIMED_MUTEX_H |