ceph/src/boost/libs/thread/include/boost/thread/poly_lockable.hpp

   1 //////////////////////////////////////////////////////////////////////////////
   2 //
   3 // (C) Copyright Vicente J. Botet Escriba 2008-2009,2012. Distributed under the Boost
   4 // Software License, Version 1.0. (See accompanying file
   5 // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   6 //
   7 // See http://www.boost.org/libs/thread for documentation.
   8 //
   9 //////////////////////////////////////////////////////////////////////////////
  10
  11 #ifndef BOOST_THREAD_POLY_LOCKABLE_HPP
  12 #define BOOST_THREAD_POLY_LOCKABLE_HPP
  13
  14 #include <boost/thread/detail/delete.hpp>
  15 #include <boost/chrono/chrono.hpp>
  16
  17 namespace boost
  18 {
  19
  20   //[basic_poly_lockable
  21   class basic_poly_lockable
  22   {
  23   public:
  24
  25     virtual ~basic_poly_lockable() = 0;
  26
  27     virtual void lock() = 0;
  28     virtual void unlock() = 0;
  29
  30   };
  31   //]
  32
  33   //[poly_lockable
  34   class poly_lockable : public basic_poly_lockable
  35   {
  36   public:
  37
  38     virtual ~poly_lockable() = 0;
  39     virtual bool try_lock() = 0;
  40   };
  41   //]
  42
  43   //[timed_poly_lockable
  44   class timed_poly_lockable: public poly_lockable
  45   {
  46   public:
  47     virtual ~timed_poly_lockable()=0;
  48
  49     virtual bool try_lock_until(chrono::system_clock::time_point const & abs_time)=0;
  50     virtual bool try_lock_until(chrono::steady_clock::time_point const & abs_time)=0;
  51     template <typename Clock, typename Duration>
  52     bool try_lock_until(chrono::time_point<Clock, Duration> const & abs_time)
  53     {
  54       return try_lock_until(time_point_cast<Clock::time_point>(abs_time));
  55     }
  56
  57     virtual bool try_lock_for(chrono::nanoseconds const & relative_time)=0;
  58     template <typename Rep, typename Period>
  59     bool try_lock_for(chrono::duration<Rep, Period> const & rel_time)
  60     {
  61       return try_lock_for(duration_cast<Clock::duration>(rel_time));
  62     }
  63
  64   };
  65   //]
  66
  67 }
  68 #endif