ceph/src/boost/libs/fiber/include/boost/fiber/detail/data.hpp

   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_DETAIL_DATA_H
   8 #define BOOST_FIBERS_DETAIL_DATA_H
   9
  10 #include <boost/config.hpp>
  11
  12 #include <boost/fiber/detail/config.hpp>
  13 #include <boost/fiber/detail/spinlock.hpp>
  14
  15 #ifdef BOOST_HAS_ABI_HEADERS
  16 #  include BOOST_ABI_PREFIX
  17 #endif
  18
  19 namespace boost {
  20 namespace fibers {
  21
  22 class context;
  23
  24 namespace detail {
  25
  26 #if (BOOST_EXECUTION_CONTEXT==1)
  27 struct data_t {
  28     spinlock_lock   *   lk{ nullptr };
  29     context         *   ctx{ nullptr };
  30
  31     constexpr data_t() noexcept = default;
  32
  33     explicit data_t( spinlock_lock * lk_) noexcept :
  34         lk{ lk_ } {
  35     }
  36
  37     explicit data_t( context * ctx_) noexcept :
  38         ctx{ ctx_ } {
  39     }
  40 };
  41 #else
  42 struct data_t {
  43     spinlock_lock   *   lk{ nullptr };
  44     context         *   ctx{ nullptr };
  45     context         *   from;
  46
  47     explicit data_t( context * from_) noexcept :
  48         from{ from_ } {
  49     }
  50
  51     explicit data_t( spinlock_lock * lk_,
  52                      context * from_) noexcept :
  53         lk{ lk_ },
  54         from{ from_ } {
  55     }
  56
  57     explicit data_t( context * ctx_,
  58                      context * from_) noexcept :
  59         ctx{ ctx_ },
  60         from{ from_ } {
  61     }
  62 };
  63 #endif
  64
  65 }}}
  66
  67 #ifdef BOOST_HAS_ABI_HEADERS
  68 #  include BOOST_ABI_SUFFIX
  69 #endif
  70
  71 #endif // BOOST_FIBERS_DETAIL_DATA_H