ceph/src/boost/libs/context/include/boost/context/stack_context.hpp

   1
   2 //          Copyright Oliver Kowalke 2014.
   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_CONTEXT_STACK_CONTEXT_H
   8 #define BOOST_CONTEXT_STACK_CONTEXT_H
   9
  10 #include <cstddef>
  11
  12 #include <boost/config.hpp>
  13
  14 #include <boost/context/detail/config.hpp>
  15
  16 #ifdef BOOST_HAS_ABI_HEADERS
  17 #  include BOOST_ABI_PREFIX
  18 #endif
  19
  20 namespace boost {
  21 namespace context {
  22
  23 #if ! defined(BOOST_CONTEXT_NO_CXX11)
  24 struct stack_context {
  25 # if defined(BOOST_USE_SEGMENTED_STACKS)
  26     typedef void *  segments_context[BOOST_CONTEXT_SEGMENTS];
  27 # endif
  28
  29     std::size_t             size{ 0 };
  30     void                *   sp{ nullptr };
  31 # if defined(BOOST_USE_SEGMENTED_STACKS)
  32     segments_context        segments_ctx{};
  33 # endif
  34 # if defined(BOOST_USE_VALGRIND)
  35     unsigned                valgrind_stack_id{ 0 };
  36 # endif
  37 };
  38 #else
  39 struct stack_context {
  40 # if defined(BOOST_USE_SEGMENTED_STACKS)
  41     typedef void *  segments_context[BOOST_CONTEXT_SEGMENTS];
  42 # endif
  43
  44     std::size_t             size;
  45     void                *   sp;
  46 # if defined(BOOST_USE_SEGMENTED_STACKS)
  47     segments_context        segments_ctx;
  48 # endif
  49 # if defined(BOOST_USE_VALGRIND)
  50     unsigned                valgrind_stack_id;
  51 # endif
  52
  53     stack_context() :
  54         size( 0),
  55         sp( 0)
  56 # if defined(BOOST_USE_SEGMENTED_STACKS)
  57         , segments_ctx()
  58 # endif
  59 # if defined(BOOST_USE_VALGRIND)
  60         , valgrind_stack_id( 0)
  61 # endif
  62         {}
  63 };
  64 #endif
  65
  66 }}
  67
  68 #ifdef BOOST_HAS_ABI_HEADERS
  69 #  include BOOST_ABI_SUFFIX
  70 #endif
  71
  72 #endif // BOOST_CONTEXT_STACK_CONTEXT_H