Added thirdparty: boost library

thirdparty/include/boost/interprocess/managed_shared_memory.hpp

@@ -0,0 +1,388 @@
+//////////////////////////////////////////////////////////////////////////////
+//
+// (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)
+//
+// See http://www.boost.org/libs/interprocess for documentation.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+#ifndef BOOST_INTERPROCESS_MANAGED_SHARED_MEMORY_HPP
+#define BOOST_INTERPROCESS_MANAGED_SHARED_MEMORY_HPP
+
+#ifndef BOOST_CONFIG_HPP
+#  include <boost/config.hpp>
+#endif
+#
+#if defined(BOOST_HAS_PRAGMA_ONCE)
+#  pragma once
+#endif
+
+#include <boost/interprocess/detail/config_begin.hpp>
+#include <boost/interprocess/detail/workaround.hpp>
+
+#include <boost/interprocess/detail/managed_memory_impl.hpp>
+#include <boost/interprocess/detail/managed_open_or_create_impl.hpp>
+#include <boost/interprocess/shared_memory_object.hpp>
+#include <boost/interprocess/creation_tags.hpp>
+#include <boost/interprocess/permissions.hpp>
+//These includes needed to fulfill default template parameters of
+//predeclarations in interprocess_fwd.hpp
+#include <boost/interprocess/mem_algo/rbtree_best_fit.hpp>
+#include <boost/interprocess/sync/mutex_family.hpp>
+
+namespace boost {
+namespace interprocess {
+
+namespace ipcdetail {
+
+template
+      <
+         class CharType,
+         class AllocationAlgorithm,
+         template<class IndexConfig> class IndexType
+      >
+struct shmem_open_or_create
+{
+   static const std::size_t segment_manager_alignment = boost::move_detail::alignment_of
+         < segment_manager
+               < CharType
+               , AllocationAlgorithm
+               , IndexType>
+         >::value;
+   static const std::size_t final_segment_manager_alignment
+      = segment_manager_alignment > AllocationAlgorithm::Alignment
+      ? segment_manager_alignment : AllocationAlgorithm::Alignment;
+
+   typedef ipcdetail::managed_open_or_create_impl
+      < shared_memory_object
+      , final_segment_manager_alignment
+      , true
+      , false> type;
+};
+
+}  //namespace ipcdetail {
+
+//!A basic shared memory named object creation class. Initializes the
+//!shared memory segment. Inherits all basic functionality from
+//!basic_managed_memory_impl<CharType, AllocationAlgorithm, IndexType>*/
+template
+      <
+         class CharType,
+         class AllocationAlgorithm,
+         template<class IndexConfig> class IndexType
+      >
+class basic_managed_shared_memory
+   : public ipcdetail::basic_managed_memory_impl
+      < CharType, AllocationAlgorithm, IndexType
+      , ipcdetail::shmem_open_or_create<CharType, AllocationAlgorithm, IndexType>::type::ManagedOpenOrCreateUserOffset>
+   , private ipcdetail::shmem_open_or_create<CharType, AllocationAlgorithm, IndexType>::type
+{
+   #if !defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED)
+   typedef typename ipcdetail::shmem_open_or_create
+      < CharType
+      , AllocationAlgorithm
+      , IndexType>::type                                 base2_t;
+   typedef ipcdetail::basic_managed_memory_impl
+      <CharType, AllocationAlgorithm, IndexType,
+      base2_t::ManagedOpenOrCreateUserOffset>            base_t;
+
+   typedef ipcdetail::create_open_func<base_t>        create_open_func_t;
+
+   basic_managed_shared_memory *get_this_pointer()
+   {  return this;   }
+
+   public:
+   typedef shared_memory_object                    device_type;
+   typedef typename base_t::size_type              size_type;
+
+   private:
+   typedef typename base_t::char_ptr_holder_t   char_ptr_holder_t;
+   BOOST_MOVABLE_BUT_NOT_COPYABLE(basic_managed_shared_memory)
+   #endif   //#ifndef BOOST_INTERPROCESS_DOXYGEN_INVOKED
+
+   public: //functions
+
+   //!Destroys *this and indicates that the calling process is finished using
+   //!the resource. The destructor function will deallocate
+   //!any system resources allocated by the system for use by this process for
+   //!this resource. The resource can still be opened again calling
+   //!the open constructor overload. To erase the resource from the system
+   //!use remove().
+   ~basic_managed_shared_memory()
+   {}
+
+   //!Default constructor. Does nothing.
+   //!Useful in combination with move semantics
+   basic_managed_shared_memory()
+   {}
+
+   //!Creates shared memory and creates and places the segment manager.
+   //!This can throw.
+   basic_managed_shared_memory(create_only_t, const char *name,
+                             size_type size, const void *addr = 0, const permissions& perm = permissions())
+      : base_t()
+      , base2_t(create_only, name, size, read_write, addr,
+                create_open_func_t(get_this_pointer(), ipcdetail::DoCreate), perm)
+   {}
+
+   //!Creates shared memory and creates and places the segment manager if
+   //!segment was not created. If segment was created it connects to the
+   //!segment.
+   //!This can throw.
+   basic_managed_shared_memory (open_or_create_t,
+                              const char *name, size_type size,
+                              const void *addr = 0, const permissions& perm = permissions())
+      : base_t()
+      , base2_t(open_or_create, name, size, read_write, addr,
+                create_open_func_t(get_this_pointer(),
+                ipcdetail::DoOpenOrCreate), perm)
+   {}
+
+   //!Connects to a created shared memory and its segment manager.
+   //!in copy_on_write mode.
+   //!This can throw.
+   basic_managed_shared_memory (open_copy_on_write_t, const char* name,
+                                const void *addr = 0)
+      : base_t()
+      , base2_t(open_only, name, copy_on_write, addr,
+                create_open_func_t(get_this_pointer(),
+                ipcdetail::DoOpen))
+   {}
+
+   //!Connects to a created shared memory and its segment manager.
+   //!in read-only mode.
+   //!This can throw.
+   basic_managed_shared_memory (open_read_only_t, const char* name,
+                                const void *addr = 0)
+      : base_t()
+      , base2_t(open_only, name, read_only, addr,
+                create_open_func_t(get_this_pointer(),
+                ipcdetail::DoOpen))
+   {}
+
+   //!Connects to a created shared memory and its segment manager.
+   //!This can throw.
+   basic_managed_shared_memory (open_only_t, const char* name,
+                                const void *addr = 0)
+      : base_t()
+      , base2_t(open_only, name, read_write, addr,
+                create_open_func_t(get_this_pointer(),
+                ipcdetail::DoOpen))
+   {}
+
+   #if defined(BOOST_INTERPROCESS_WCHAR_NAMED_RESOURCES) || defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED)
+
+   //!Creates shared memory and creates and places the segment manager.
+   //!This can throw.
+   //! 
+   //!Note: This function is only available on operating systems with
+   //!      native wchar_t APIs (e.g. Windows).
+   basic_managed_shared_memory(create_only_t, const wchar_t *name,
+                             size_type size, const void *addr = 0, const permissions& perm = permissions())
+      : base_t()
+      , base2_t(create_only, name, size, read_write, addr,
+                create_open_func_t(get_this_pointer(), ipcdetail::DoCreate), perm)
+   {}
+
+   //!Creates shared memory and creates and places the segment manager if
+   //!segment was not created. If segment was created it connects to the
+   //!segment.
+   //!This can throw.
+   //! 
+   //!Note: This function is only available on operating systems with
+   //!      native wchar_t APIs (e.g. Windows).
+   basic_managed_shared_memory (open_or_create_t,
+                              const wchar_t *name, size_type size,
+                              const void *addr = 0, const permissions& perm = permissions())
+      : base_t()
+      , base2_t(open_or_create, name, size, read_write, addr,
+                create_open_func_t(get_this_pointer(),
+                ipcdetail::DoOpenOrCreate), perm)
+   {}
+
+   //!Connects to a created shared memory and its segment manager.
+   //!in copy_on_write mode.
+   //!This can throw.
+   //! 
+   //!Note: This function is only available on operating systems with
+   //!      native wchar_t APIs (e.g. Windows).
+   basic_managed_shared_memory (open_copy_on_write_t, const wchar_t* name,
+                                const void *addr = 0)
+      : base_t()
+      , base2_t(open_only, name, copy_on_write, addr,
+                create_open_func_t(get_this_pointer(),
+                ipcdetail::DoOpen))
+   {}
+
+   //!Connects to a created shared memory and its segment manager.
+   //!in read-only mode.
+   //!This can throw.
+   //! 
+   //!Note: This function is only available on operating systems with
+   //!      native wchar_t APIs (e.g. Windows).
+   basic_managed_shared_memory (open_read_only_t, const wchar_t* name,
+                                const void *addr = 0)
+      : base_t()
+      , base2_t(open_only, name, read_only, addr,
+                create_open_func_t(get_this_pointer(),
+                ipcdetail::DoOpen))
+   {}
+
+   //!Connects to a created shared memory and its segment manager.
+   //!This can throw.
+   //! 
+   //!Note: This function is only available on operating systems with
+   //!      native wchar_t APIs (e.g. Windows).
+   basic_managed_shared_memory (open_only_t, const wchar_t* name,
+                                const void *addr = 0)
+      : base_t()
+      , base2_t(open_only, name, read_write, addr,
+                create_open_func_t(get_this_pointer(),
+                ipcdetail::DoOpen))
+   {}
+
+   #endif //defined(BOOST_INTERPROCESS_WCHAR_NAMED_RESOURCES) || defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED)
+
+   //!Moves the ownership of "moved"'s managed memory to *this.
+   //!Does not throw
+   basic_managed_shared_memory(BOOST_RV_REF(basic_managed_shared_memory) moved)
+   {
+      basic_managed_shared_memory tmp;
+      this->swap(moved);
+      tmp.swap(moved);
+   }
+
+   //!Moves the ownership of "moved"'s managed memory to *this.
+   //!Does not throw
+   basic_managed_shared_memory &operator=(BOOST_RV_REF(basic_managed_shared_memory) moved)
+   {
+      basic_managed_shared_memory tmp(boost::move(moved));
+      this->swap(tmp);
+      return *this;
+   }
+
+   //!Swaps the ownership of the managed shared memories managed by *this and other.
+   //!Never throws.
+   void swap(basic_managed_shared_memory &other)
+   {
+      base_t::swap(other);
+      base2_t::swap(other);
+   }
+
+   //!Tries to resize the managed shared memory object so that we have
+   //!room for more objects.
+   //!
+   //!This function is not synchronized so no other thread or process should
+   //!be reading or writing the file
+   static bool grow(const char *shmname, size_type extra_bytes)
+   {
+      return base_t::template grow
+         <basic_managed_shared_memory>(shmname, extra_bytes);
+   }
+
+   //!Tries to resize the managed shared memory to minimized the size of the file.
+   //!
+   //!This function is not synchronized so no other thread or process should
+   //!be reading or writing the file
+   static bool shrink_to_fit(const char *shmname)
+   {
+      return base_t::template shrink_to_fit
+         <basic_managed_shared_memory>(shmname);
+   }
+
+   #if defined(BOOST_INTERPROCESS_WCHAR_NAMED_RESOURCES) || defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED)
+
+   //!Tries to resize the managed shared memory object so that we have
+   //!room for more objects.
+   //!
+   //!This function is not synchronized so no other thread or process should
+   //!be reading or writing the file
+   //! 
+   //!Note: This function is only available on operating systems with
+   //!      native wchar_t APIs (e.g. Windows).
+   static bool grow(const wchar_t *shmname, size_type extra_bytes)
+   {
+      return base_t::template grow
+         <basic_managed_shared_memory>(shmname, extra_bytes);
+   }
+
+   //!Tries to resize the managed shared memory to minimized the size of the file.
+   //!
+   //!This function is not synchronized so no other thread or process should
+   //!be reading or writing the file
+   //! 
+   //!Note: This function is only available on operating systems with
+   //!      native wchar_t APIs (e.g. Windows).
+   static bool shrink_to_fit(const wchar_t *shmname)
+   {
+      return base_t::template shrink_to_fit
+         <basic_managed_shared_memory>(shmname);
+   }
+
+   #endif //defined(BOOST_INTERPROCESS_WCHAR_NAMED_RESOURCES) || defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED)
+
+   #if !defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED)
+
+   //!Tries to find a previous named allocation address. Returns a memory
+   //!buffer and the object count. If not found returned pointer is 0.
+   //!Never throws.
+   template <class T>
+   std::pair<T*, size_type> find  (char_ptr_holder_t name)
+   {
+      if(base2_t::get_mapped_region().get_mode() == read_only){
+         return base_t::template find_no_lock<T>(name);
+      }
+      else{
+         return base_t::template find<T>(name);
+      }
+   }
+
+   #endif   //#ifndef BOOST_INTERPROCESS_DOXYGEN_INVOKED
+};
+
+#ifdef BOOST_INTERPROCESS_DOXYGEN_INVOKED
+
+//!Typedef for a default basic_managed_shared_memory
+//!of narrow characters
+typedef basic_managed_shared_memory
+   <char
+   ,rbtree_best_fit<mutex_family>
+   ,iset_index>
+managed_shared_memory;
+
+//!Typedef for a default basic_managed_shared_memory
+//!of wide characters
+typedef basic_managed_shared_memory
+   <wchar_t
+   ,rbtree_best_fit<mutex_family>
+   ,iset_index>
+wmanaged_shared_memory;
+
+//!Typedef for a default basic_managed_shared_memory
+//!of narrow characters to be placed in a fixed address
+typedef basic_managed_shared_memory
+   <char
+   ,rbtree_best_fit<mutex_family, void*>
+   ,iset_index>
+fixed_managed_shared_memory;
+
+//!Typedef for a default basic_managed_shared_memory
+//!of narrow characters to be placed in a fixed address
+typedef basic_managed_shared_memory
+   <wchar_t
+   ,rbtree_best_fit<mutex_family, void*>
+   ,iset_index>
+wfixed_managed_shared_memory;
+
+
+#endif   //#ifdef BOOST_INTERPROCESS_DOXYGEN_INVOKED
+
+}  //namespace interprocess {
+}  //namespace boost {
+
+#include <boost/interprocess/detail/config_end.hpp>
+
+#endif   //BOOST_INTERPROCESS_MANAGED_SHARED_MEMORY_HPP
+