Statistics
| Revision:

root / tmp / org.txm.statsengine.r.core.win32 / res / win32 / library / BH / include / boost / asio / detail / gcc_hppa_fenced_block.hpp @ 2486

History | View | Annotate | Download (1.5 kB)

1
//
2
// detail/gcc_hppa_fenced_block.hpp
3
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
4
//
5
// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
6
//
7
// Distributed under the Boost Software License, Version 1.0. (See accompanying
8
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
9
//
10

    
11
#ifndef BOOST_ASIO_DETAIL_GCC_HPPA_FENCED_BLOCK_HPP
12
#define BOOST_ASIO_DETAIL_GCC_HPPA_FENCED_BLOCK_HPP
13

    
14
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
15
# pragma once
16
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
17

    
18
#include <boost/asio/detail/config.hpp>
19

    
20
#if defined(__GNUC__) && (defined(__hppa) || defined(__hppa__))
21

    
22
#include <boost/asio/detail/push_options.hpp>
23

    
24
namespace boost {
25
namespace asio {
26
namespace detail {
27

    
28
class gcc_hppa_fenced_block
29
  : private noncopyable
30
{
31
public:
32
  enum half_t { half };
33
  enum full_t { full };
34

    
35
  // Constructor for a half fenced block.
36
  explicit gcc_hppa_fenced_block(half_t)
37
  {
38
  }
39

    
40
  // Constructor for a full fenced block.
41
  explicit gcc_hppa_fenced_block(full_t)
42
  {
43
    barrier();
44
  }
45

    
46
  // Destructor.
47
  ~gcc_hppa_fenced_block()
48
  {
49
    barrier();
50
  }
51

    
52
private:
53
  static void barrier()
54
  {
55
    // This is just a placeholder and almost certainly not sufficient.
56
    __asm__ __volatile__ ("" : : : "memory");
57
  }
58
};
59

    
60
} // namespace detail
61
} // namespace asio
62
} // namespace boost
63

    
64
#include <boost/asio/detail/pop_options.hpp>
65

    
66
#endif // defined(__GNUC__) && (defined(__hppa) || defined(__hppa__))
67

    
68
#endif // BOOST_ASIO_DETAIL_GCC_HPPA_FENCED_BLOCK_HPP