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authorChanho Park <chanho61.park@samsung.com>2014-12-11 09:55:56 (GMT)
committerChanho Park <chanho61.park@samsung.com>2014-12-11 09:55:56 (GMT)
commit08c1e93fa36a49f49325a07fe91ff92c964c2b6c (patch)
tree7a7053ceb8874b28ec4b868d4c49b500008a102e /boost/interprocess/windows_shared_memory.hpp
parentbb4dd8289b351fae6b55e303f189127a394a1edd (diff)
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Imported Upstream version 1.57.0upstream/1.57.0
Diffstat (limited to 'boost/interprocess/windows_shared_memory.hpp')
-rw-r--r--boost/interprocess/windows_shared_memory.hpp40
1 files changed, 27 insertions, 13 deletions
diff --git a/boost/interprocess/windows_shared_memory.hpp b/boost/interprocess/windows_shared_memory.hpp
index 76601bb..5898b4b 100644
--- a/boost/interprocess/windows_shared_memory.hpp
+++ b/boost/interprocess/windows_shared_memory.hpp
@@ -1,6 +1,6 @@
//////////////////////////////////////////////////////////////////////////////
//
-// (C) Copyright Ion Gaztanaga 2005-2011. Distributed under the Boost
+// (C) Copyright Ion Gaztanaga 2005-2012. Distributed under the Boost
// Software License, Version 1.0. (See accompanying file
// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
@@ -11,6 +11,10 @@
#ifndef BOOST_INTERPROCESS_WINDOWS_SHARED_MEMORY_HPP
#define BOOST_INTERPROCESS_WINDOWS_SHARED_MEMORY_HPP
+#if defined(_MSC_VER)
+# pragma once
+#endif
+
#include <boost/interprocess/detail/config_begin.hpp>
#include <boost/interprocess/detail/workaround.hpp>
#include <boost/detail/workaround.hpp>
@@ -50,23 +54,23 @@ namespace interprocess {
//!can't communicate between them.
class windows_shared_memory
{
- /// @cond
+ #if !defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED)
//Non-copyable and non-assignable
BOOST_MOVABLE_BUT_NOT_COPYABLE(windows_shared_memory)
- /// @endcond
+ #endif //#ifndef BOOST_INTERPROCESS_DOXYGEN_INVOKED
public:
//!Default constructor.
//!Represents an empty windows_shared_memory.
windows_shared_memory();
- //!Creates a new native shared memory with name "name" and mode "mode",
+ //!Creates a new native shared memory with name "name" and at least size "size",
//!with the access mode "mode".
//!If the file previously exists, throws an error.
windows_shared_memory(create_only_t, const char *name, mode_t mode, std::size_t size, const permissions& perm = permissions())
{ this->priv_open_or_create(ipcdetail::DoCreate, name, mode, size, perm); }
- //!Tries to create a shared memory object with name "name" and mode "mode", with the
+ //!Tries to create a shared memory object with name "name" and at least size "size", with the
//!access mode "mode". If the file previously exists, it tries to open it with mode "mode".
//!Otherwise throws an error.
windows_shared_memory(open_or_create_t, const char *name, mode_t mode, std::size_t size, const permissions& perm = permissions())
@@ -88,10 +92,10 @@ class windows_shared_memory
//!After the call, "moved" does not represent any shared memory.
//!Does not throw
windows_shared_memory &operator=(BOOST_RV_REF(windows_shared_memory) moved)
- {
+ {
windows_shared_memory tmp(boost::move(moved));
this->swap(tmp);
- return *this;
+ return *this;
}
//!Swaps to shared_memory_objects. Does not throw
@@ -112,7 +116,11 @@ class windows_shared_memory
//!Returns the mapping handle. Never throws
mapping_handle_t get_mapping_handle() const;
- /// @cond
+ //!Returns the size of the windows shared memory. It will be a 4K rounded
+ //!size of the "size" passed in the constructor.
+ offset_t get_size() const;
+
+ #if !defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED)
private:
//!Closes a previously opened file mapping. Never throws.
@@ -124,10 +132,10 @@ class windows_shared_memory
void * m_handle;
mode_t m_mode;
std::string m_name;
- /// @endcond
+ #endif //#ifndef BOOST_INTERPROCESS_DOXYGEN_INVOKED
};
-/// @cond
+#if !defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED)
inline windows_shared_memory::windows_shared_memory()
: m_handle(0)
@@ -140,10 +148,10 @@ inline const char *windows_shared_memory::get_name() const
{ return m_name.c_str(); }
inline void windows_shared_memory::swap(windows_shared_memory &other)
-{
+{
std::swap(m_handle, other.m_handle);
std::swap(m_mode, other.m_mode);
- m_name.swap(other.m_name);
+ m_name.swap(other.m_name);
}
inline mapping_handle_t windows_shared_memory::get_mapping_handle() const
@@ -152,6 +160,12 @@ inline mapping_handle_t windows_shared_memory::get_mapping_handle() const
inline mode_t windows_shared_memory::get_mode() const
{ return m_mode; }
+inline offset_t windows_shared_memory::get_size() const
+{
+ offset_t size; //This shall never fail
+ return (m_handle && winapi::get_file_mapping_size(m_handle, size)) ? size : 0;
+}
+
inline bool windows_shared_memory::priv_open_or_create
(ipcdetail::create_enum_t type, const char *filename, mode_t mode, std::size_t size, const permissions& perm)
{
@@ -223,7 +237,7 @@ inline void windows_shared_memory::priv_close()
}
}
-///@endcond
+#endif //#ifndef BOOST_INTERPROCESS_DOXYGEN_INVOKED
} //namespace interprocess {
} //namespace boost {