1 #ifndef BOOST_ARCHIVE_BASIC_BINARY_OPRIMITIVE_HPP
2 #define BOOST_ARCHIVE_BASIC_BINARY_OPRIMITIVE_HPP
3
4 // MS compatible compilers support #pragma once
5 #if defined(_MSC_VER) && (_MSC_VER >= 1020)
6 # pragma once
7 #endif
8
9 /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
10 // basic_binary_oprimitive.hpp
11
12 // (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
13 // Use, modification and distribution is subject to the Boost Software
14 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
15 // http://www.boost.org/LICENSE_1_0.txt)
16
17 // See http://www.boost.org for updates, documentation, and revision history.
18
19 // archives stored as native binary - this should be the fastest way
20 // to archive the state of a group of obects. It makes no attempt to
21 // convert to any canonical form.
22
23 // IN GENERAL, ARCHIVES CREATED WITH THIS CLASS WILL NOT BE READABLE
24 // ON PLATFORM APART FROM THE ONE THEY ARE CREATE ON
25
26 #include <iosfwd>
27 #include <cassert>
28 #include <locale>
29 #include <cstddef> // size_t
30
31 #include <boost/config.hpp>
32 #if defined(BOOST_NO_STDC_NAMESPACE)
33 namespace std{
34 using ::size_t;
35 } // namespace std
36 #endif
37
38 #include <boost/cstdint.hpp>
39 #include <boost/limits.hpp>
40 #include <boost/io/ios_state.hpp>
41 #include <boost/scoped_ptr.hpp>
42 #include <boost/throw_exception.hpp>
43
44 #include <boost/archive/archive_exception.hpp>
45
46 namespace boost {
47 namespace archive {
48
49 /////////////////////////////////////////////////////////////////////////
50 // class basic_binary_oprimitive - binary output of prmitives
51
52 template<class Archive, class OStream>
53 class basic_binary_oprimitive
54 {
55 #ifndef BOOST_NO_MEMBER_TEMPLATE_FRIENDS
56 friend class save_access;
57 protected:
58 #else
59 public:
60 #endif
61 // return a pointer to the most derived class
This()62 Archive * This(){
63 return static_cast<Archive *>(this);
64 }
65 // native binary streams are handled as bytes
66 OStream &os;
67 boost::scoped_ptr<std::locale> archive_locale;
68 io::basic_ios_locale_saver<
69 BOOST_DEDUCED_TYPENAME OStream::char_type,
70 BOOST_DEDUCED_TYPENAME OStream::traits_type
71 > locale_saver;
72
73 // default saving of primitives.
74 template<class T>
save(const T & t)75 void save(const T & t)
76 {
77 save_binary(& t, sizeof(T));
78 }
79
80 BOOST_ARCHIVE_OR_WARCHIVE_DECL(void)
81 save(const std::string &s);
82 #ifndef BOOST_NO_STD_WSTRING
83 BOOST_ARCHIVE_OR_WARCHIVE_DECL(void)
84 save(const std::wstring &ws);
85 #endif
86 BOOST_ARCHIVE_OR_WARCHIVE_DECL(void)
87 save(const char * t);
88 BOOST_ARCHIVE_OR_WARCHIVE_DECL(void)
89 save(const wchar_t * t);
90
91 BOOST_ARCHIVE_OR_WARCHIVE_DECL(void)
92 init();
93 BOOST_ARCHIVE_OR_WARCHIVE_DECL(BOOST_PP_EMPTY())
94 basic_binary_oprimitive(OStream & os, bool no_codecvt);
95 BOOST_ARCHIVE_OR_WARCHIVE_DECL(BOOST_PP_EMPTY())
96 ~basic_binary_oprimitive();
97 public:
98 void save_binary(const void *address, std::size_t count);
99 };
100
101 template<class Archive, class OStream>
102 inline void
save_binary(const void * address,std::size_t count)103 basic_binary_oprimitive<Archive, OStream>::save_binary(
104 const void *address,
105 std::size_t count
106 ){
107 assert(
108 static_cast<std::size_t>((std::numeric_limits<std::streamsize>::max)()) >= count
109 );
110 // note: if the following assertions fail
111 // a likely cause is that the output stream is set to "text"
112 // mode where by cr characters recieve special treatment.
113 // be sure that the output stream is opened with ios::binary
114 if(os.fail())
115 boost::throw_exception(archive_exception(archive_exception::stream_error));
116 // figure number of elements to output - round up
117 count = ( count + sizeof(BOOST_DEDUCED_TYPENAME OStream::char_type) - 1)
118 / sizeof(BOOST_DEDUCED_TYPENAME OStream::char_type);
119 os.write(
120 static_cast<const BOOST_DEDUCED_TYPENAME OStream::char_type *>(address),
121 count
122 );
123 assert(os.good());
124 }
125
126 } //namespace boost
127 } //namespace archive
128
129 #endif // BOOST_ARCHIVE_BASIC_BINARY_OPRIMITIVE_HPP
130