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132 lines
3.1 KiB
132 lines
3.1 KiB
////////////////////////////////////////////////////////////////////////////// |
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// |
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// (C) Copyright Ion Gaztanaga 2005-2009. Distributed under the Boost |
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// Software License, Version 1.0. (See accompanying file |
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
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// |
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// See http://www.boost.org/libs/interprocess for documentation. |
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// |
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////////////////////////////////////////////////////////////////////////////// |
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#ifndef BOOST_INTERPROCESS_PERMISSIONS_HPP |
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#define BOOST_INTERPROCESS_PERMISSIONS_HPP |
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/// @cond |
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#if defined (_MSC_VER) && (_MSC_VER >= 1200) |
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# pragma once |
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#endif |
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#include <boost/interprocess/detail/config_begin.hpp> |
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#include <boost/interprocess/detail/workaround.hpp> |
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#include <boost/interprocess/interprocess_fwd.hpp> |
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#if defined(BOOST_INTERPROCESS_WINDOWS) |
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#include <boost/interprocess/detail/win32_api.hpp> |
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#endif |
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/// @endcond |
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//!\file |
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//!Describes permissions class |
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namespace boost { |
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namespace interprocess { |
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/// @cond |
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#if defined(BOOST_INTERPROCESS_WINDOWS) |
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namespace ipcdetail { |
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template <int Dummy> |
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struct unrestricted_permissions_holder |
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{ |
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static winapi::interprocess_all_access_security unrestricted; |
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}; |
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template<int Dummy> |
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winapi::interprocess_all_access_security unrestricted_permissions_holder<Dummy>::unrestricted; |
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} //namespace ipcdetail { |
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#endif //defined BOOST_INTERPROCESS_WINDOWS |
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/// @endcond |
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//!The permissions class represents permissions to be set to shared memory or |
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//!files, that can be constructed form usual permission representations: |
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//!a SECURITY_ATTRIBUTES pointer in windows or ORed rwx chmod integer in UNIX. |
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class permissions |
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{ |
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/// @cond |
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#if defined(BOOST_INTERPROCESS_WINDOWS) |
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typedef void* os_permissions_type; |
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#else |
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typedef int os_permissions_type; |
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#endif |
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os_permissions_type m_perm; |
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/// @endcond |
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public: |
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//!Constructs a permissions object from a user provided os-dependent |
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//!permissions. |
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permissions(os_permissions_type type) |
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: m_perm(type) |
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{} |
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//!Constructs a default permissions object: |
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//!A null security attributes pointer for windows or 0644 |
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//!for UNIX. |
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permissions() |
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{ set_default(); } |
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//!Sets permissions to default values: |
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//!A null security attributes pointer for windows or 0644 |
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//!for UNIX. |
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void set_default() |
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{ |
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/// @cond |
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#if defined (BOOST_INTERPROCESS_WINDOWS) |
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m_perm = 0; |
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#else |
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m_perm = 0644; |
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#endif |
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/// @endcond |
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} |
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//!Sets permissions to unrestricted access: |
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//!A null DACL for windows or 0666 for UNIX. |
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void set_unrestricted() |
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{ |
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/// @cond |
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#if defined (BOOST_INTERPROCESS_WINDOWS) |
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m_perm = &ipcdetail::unrestricted_permissions_holder<0>::unrestricted; |
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#else |
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m_perm = 0666; |
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#endif |
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/// @endcond |
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} |
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//!Sets permissions from a user provided os-dependent |
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//!permissions. |
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void set_permissions(os_permissions_type perm) |
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{ m_perm = perm; } |
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//!Returns stored os-dependent |
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//!permissions |
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os_permissions_type get_permissions() const |
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{ return m_perm; } |
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}; |
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} //namespace interprocess { |
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} //namespace boost { |
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#include <boost/interprocess/detail/config_end.hpp> |
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#endif //BOOST_INTERPROCESS_PERMISSIONS_HPP |
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