ceph/src/boost/boost/coroutine/stack_context.hpp

   1
   2 //          Copyright Oliver Kowalke 2009.
   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_COROUTINES_STACK_CONTEXT_H
   8 #define BOOST_COROUTINES_STACK_CONTEXT_H
   9
  10 #include <cstddef>
  11
  12 #include <boost/config.hpp>
  13
  14 #include <boost/coroutine/detail/config.hpp>
  15
  16 #ifdef BOOST_HAS_ABI_HEADERS
  17 #  include BOOST_ABI_PREFIX
  18 #endif
  19
  20 namespace boost {
  21 namespace coroutines {
  22
  23 #if defined(BOOST_USE_SEGMENTED_STACKS)
  24 struct stack_context
  25 {
  26     typedef void *  segments_context[BOOST_CONTEXT_SEGMENTS];
  27
  28     std::size_t             size;
  29     void                *   sp;
  30     segments_context        segments_ctx;
  31 #if defined(BOOST_USE_VALGRIND)
  32     unsigned                valgrind_stack_id;
  33 #endif
  34
  35     stack_context() :
  36         size( 0), sp( 0), segments_ctx()
  37 #if defined(BOOST_USE_VALGRIND)
  38         , valgrind_stack_id( 0)
  39 #endif
  40     {}
  41 };
  42 #else
  43 struct stack_context
  44 {
  45     std::size_t             size;
  46     void                *   sp;
  47 #if defined(BOOST_USE_VALGRIND)
  48     unsigned                valgrind_stack_id;
  49 #endif
  50
  51     stack_context() :
  52         size( 0), sp( 0)
  53 #if defined(BOOST_USE_VALGRIND)
  54         , valgrind_stack_id( 0)
  55 #endif
  56     {}
  57 };
  58 #endif
  59
  60 }}
  61
  62 #ifdef BOOST_HAS_ABI_HEADERS
  63 #  include BOOST_ABI_SUFFIX
  64 #endif
  65
  66 #endif // BOOST_COROUTINES_STACK_CONTEXT_H