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1 | /* |
2 | * Copyright Andrey Semashev 2016. | |
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 | /*! | |
8 | * \file windows/auto_handle.hpp | |
9 | * \author Andrey Semashev | |
10 | * \date 07.03.2016 | |
11 | * | |
12 | * \brief This header is the Boost.Log library implementation, see the library documentation | |
13 | * at http://www.boost.org/doc/libs/release/libs/log/doc/html/index.html. | |
14 | */ | |
15 | ||
16 | #ifndef BOOST_LOG_WINDOWS_AUTO_HANDLE_HPP_INCLUDED_ | |
17 | #define BOOST_LOG_WINDOWS_AUTO_HANDLE_HPP_INCLUDED_ | |
18 | ||
19 | #include <boost/log/detail/config.hpp> | |
20 | #include <boost/assert.hpp> | |
b32b8144 | 21 | #include <boost/winapi/handles.hpp> |
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22 | #include <boost/log/detail/header.hpp> |
23 | ||
24 | namespace boost { | |
25 | ||
26 | BOOST_LOG_OPEN_NAMESPACE | |
27 | ||
28 | namespace ipc { | |
29 | ||
30 | namespace aux { | |
31 | ||
32 | //! A wrapper around a kernel object handle. Automatically closes the handle on destruction. | |
33 | class auto_handle | |
34 | { | |
35 | private: | |
b32b8144 | 36 | boost::winapi::HANDLE_ m_handle; |
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37 | |
38 | public: | |
b32b8144 | 39 | explicit auto_handle(boost::winapi::HANDLE_ h = NULL) BOOST_NOEXCEPT : m_handle(h) |
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40 | { |
41 | } | |
42 | ||
43 | ~auto_handle() BOOST_NOEXCEPT | |
44 | { | |
45 | if (m_handle) | |
b32b8144 | 46 | BOOST_VERIFY(boost::winapi::CloseHandle(m_handle) != 0); |
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47 | } |
48 | ||
b32b8144 | 49 | void init(boost::winapi::HANDLE_ h) BOOST_NOEXCEPT |
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50 | { |
51 | BOOST_ASSERT(m_handle == NULL); | |
52 | m_handle = h; | |
53 | } | |
54 | ||
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55 | boost::winapi::HANDLE_ get() const BOOST_NOEXCEPT { return m_handle; } |
56 | boost::winapi::HANDLE_* get_ptr() BOOST_NOEXCEPT { return &m_handle; } | |
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57 | |
58 | void swap(auto_handle& that) BOOST_NOEXCEPT | |
59 | { | |
b32b8144 | 60 | boost::winapi::HANDLE_ h = m_handle; |
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61 | m_handle = that.m_handle; |
62 | that.m_handle = h; | |
63 | } | |
64 | ||
65 | BOOST_DELETED_FUNCTION(auto_handle(auto_handle const&)) | |
66 | BOOST_DELETED_FUNCTION(auto_handle& operator=(auto_handle const&)) | |
67 | }; | |
68 | ||
69 | } // namespace aux | |
70 | ||
71 | } // namespace ipc | |
72 | ||
73 | BOOST_LOG_CLOSE_NAMESPACE // namespace log | |
74 | ||
75 | } // namespace boost | |
76 | ||
77 | #include <boost/log/detail/footer.hpp> | |
78 | ||
79 | #endif // BOOST_LOG_WINDOWS_AUTO_HANDLE_HPP_INCLUDED_ |