ceph/src/boost/boost/thread/poly_shared_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_SHARED_LOCKABLE_HPP
  12 #define BOOST_THREAD_POLY_SHARED_LOCKABLE_HPP
  13
  14 #include <boost/thread/poly_lockable.hpp>
  15 #include <boost/chrono/chrono.hpp>
  16
  17 namespace boost
  18 {
  19
  20
  21   //[shared_poly_lockable
  22   class shared_poly_lockable: public timed_poly_lockable
  23   {
  24   public:
  25     virtual ~shared_poly_lockable() = 0;
  26
  27     virtual void lock_shared() = 0;
  28     virtual bool try_lock_shared() = 0;
  29     virtual void unlock_shared() = 0;
  30
  31     virtual bool try_lock_shared_until(chrono::system_clock::time_point const & abs_time)=0;
  32     virtual bool try_lock_shared_until(chrono::steady_clock::time_point const & abs_time)=0;
  33     template <typename Clock, typename Duration>
  34     bool try_lock_shared_until(chrono::time_point<Clock, Duration> const & abs_time)
  35     {
  36       return try_lock_shared_until(chrono::time_point_cast<Clock::time_point>(abs_time));
  37     }
  38
  39     virtual bool try_lock_shared_for(chrono::nanoseconds const & relative_time)=0;
  40     template <typename Rep, typename Period>
  41     bool try_lock_shared_for(chrono::duration<Rep, Period> const & rel_time)
  42     {
  43       return try_lock_shared_for(chrono::duration_cast<chrono::nanoseconds>(rel_time));
  44     }
  45
  46   };
  47   //]
  48
  49   // A proper name for shared_poly_lockable, consistent with naming scheme of other polymorphic wrappers
  50   typedef shared_poly_lockable poly_shared_lockable;
  51
  52   //[upgrade_poly_lockable
  53   class upgrade_poly_lockable: public shared_poly_lockable
  54   {
  55   public:
  56     virtual ~upgrade_poly_lockable() = 0;
  57
  58     virtual void lock_upgrade() = 0;
  59     virtual bool try_lock_upgrade() = 0;
  60     virtual void unlock_upgrade() = 0;
  61
  62     virtual bool try_lock_upgrade_until(chrono::system_clock::time_point const & abs_time)=0;
  63     virtual bool try_lock_upgrade_until(chrono::steady_clock::time_point const & abs_time)=0;
  64     template <typename Clock, typename Duration>
  65     bool try_lock_upgrade_until(chrono::time_point<Clock, Duration> const & abs_time)
  66     {
  67       return try_lock_upgrade_until(chrono::time_point_cast<Clock::time_point>(abs_time));
  68     }
  69
  70     virtual bool try_lock_upgrade_for(chrono::nanoseconds const & relative_time)=0;
  71     template <typename Rep, typename Period>
  72     bool try_lock_upgrade_for(chrono::duration<Rep, Period> const & rel_time)
  73     {
  74       return try_lock_upgrade_for(chrono::duration_cast<chrono::nanoseconds>(rel_time));
  75     }
  76
  77     virtual bool try_unlock_shared_and_lock() = 0;
  78
  79     virtual bool try_unlock_shared_and_lock_until(chrono::system_clock::time_point const & abs_time)=0;
  80     virtual bool try_unlock_shared_and_lock_until(chrono::steady_clock::time_point const & abs_time)=0;
  81     template <typename Clock, typename Duration>
  82     bool try_unlock_shared_and_lock_until(chrono::time_point<Clock, Duration> const & abs_time)
  83     {
  84       return try_unlock_shared_and_lock_until(chrono::time_point_cast<Clock::time_point>(abs_time));
  85     }
  86
  87     virtual bool try_unlock_shared_and_lock_for(chrono::nanoseconds const & relative_time)=0;
  88     template <typename Rep, typename Period>
  89     bool try_unlock_shared_and_lock_for(chrono::duration<Rep, Period> const & rel_time)
  90     {
  91       return try_unlock_shared_and_lock_for(chrono::duration_cast<chrono::nanoseconds>(rel_time));
  92     }
  93
  94     virtual void unlock_and_lock_shared() = 0;
  95     virtual bool try_unlock_shared_and_lock_upgrade() = 0;
  96
  97     virtual bool try_unlock_shared_and_lock_upgrade_until(chrono::system_clock::time_point const & abs_time)=0;
  98     virtual bool try_unlock_shared_and_lock_upgrade_until(chrono::steady_clock::time_point const & abs_time)=0;
  99     template <typename Clock, typename Duration>
 100     bool try_unlock_shared_and_lock_upgrade_until(chrono::time_point<Clock, Duration> const & abs_time)
 101     {
 102       return try_unlock_shared_and_lock_upgrade_until(chrono::time_point_cast<Clock::time_point>(abs_time));
 103     }
 104
 105     virtual bool try_unlock_shared_and_lock_upgrade_for(chrono::nanoseconds const & relative_time)=0;
 106     template <typename Rep, typename Period>
 107     bool try_unlock_shared_and_lock_upgrade_for(chrono::duration<Rep, Period> const & rel_time)
 108     {
 109       return try_unlock_shared_and_lock_upgrade_for(chrono::duration_cast<chrono::nanoseconds>(rel_time));
 110     }
 111
 112     virtual void unlock_and_lock_upgrade() = 0;
 113     virtual void unlock_upgrade_and_lock() = 0;
 114     virtual bool try_unlock_upgrade_and_lock() = 0;
 115
 116     virtual bool try_unlock_upgrade_and_lock_until(chrono::system_clock::time_point const & abs_time)=0;
 117     virtual bool try_unlock_upgrade_and_lock_until(chrono::steady_clock::time_point const & abs_time)=0;
 118     template <typename Clock, typename Duration>
 119     bool try_unlock_upgrade_and_lock_until(chrono::time_point<Clock, Duration> const & abs_time)
 120     {
 121       return try_unlock_upgrade_and_lock_until(chrono::time_point_cast<Clock::time_point>(abs_time));
 122     }
 123
 124     virtual bool try_unlock_upgrade_and_lock_for(chrono::nanoseconds const & relative_time)=0;
 125     template <typename Rep, typename Period>
 126     bool try_unlock_upgrade_and_lock_for(chrono::duration<Rep, Period> const & rel_time)
 127     {
 128       return try_unlock_upgrade_and_lock_for(chrono::duration_cast<chrono::nanoseconds>(rel_time));
 129     }
 130
 131     virtual void unlock_upgrade_and_lock_shared() = 0;
 132
 133   };
 134   //]
 135
 136   // A proper name for upgrade_poly_lockable, consistent with naming scheme of other polymorphic wrappers
 137   typedef upgrade_poly_lockable poly_upgrade_lockable;
 138 }
 139 #endif