ndnboost: Include boost::iostreams for internal use.
diff --git a/include/ndnboost/iostreams/detail/restrict_impl.hpp b/include/ndnboost/iostreams/detail/restrict_impl.hpp
new file mode 100644
index 0000000..a33047a
--- /dev/null
+++ b/include/ndnboost/iostreams/detail/restrict_impl.hpp
@@ -0,0 +1,482 @@
+/*
+ * 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/iostreams for documentation.
+
+ * File: ndnboost/iostreams/detail/restrict_impl.hpp
+ * Date: Sun Jan 06 12:57:30 MST 2008
+ * Copyright: 2007-2008 CodeRage, LLC
+ * Author: Jonathan Turkanis
+ * Contact: turkanis at coderage dot com
+ *
+ * If included with the macro NDNBOOST_IOSTREAMS_RESTRICT undefined, defines the
+ * class template ndnboost::iostreams::restriction. If included with the macro
+ * NDNBOOST_IOSTREAMS_RESTRICT defined as an identifier, defines the overloaded
+ * function template ndnboost::iostreams::NDNBOOST_IOSTREAMS_RESTRICT, and object
+ * generator for ndnboost::iostreams::restriction.
+ *
+ * This design allows <ndnboost/iostreams/restrict.hpp> and
+ * <ndnboost/iostreams/slice.hpp> to share an implementation.
+ */
+
+#if !defined(NDNBOOST_IOSTREAMS_RESTRICT_IMPL_HPP_INCLUDED) && \
+ !defined(NDNBOOST_IOSTREAMS_RESTRICT)
+# define NDNBOOST_IOSTREAMS_RESTRICT_IMPL_HPP_INCLUDED
+
+//------------------Implementation of restriction-----------------------------//
+
+# include <algorithm> // min.
+# include <utility> // pair.
+# include <ndnboost/cstdint.hpp> // intmax_t.
+# include <ndnboost/config.hpp> // DEDUCED_TYPENAME.
+# include <ndnboost/iostreams/categories.hpp>
+# include <ndnboost/iostreams/char_traits.hpp>
+# include <ndnboost/iostreams/detail/adapter/device_adapter.hpp>
+# include <ndnboost/iostreams/detail/adapter/filter_adapter.hpp>
+# include <ndnboost/iostreams/detail/call_traits.hpp>
+# include <ndnboost/iostreams/detail/enable_if_stream.hpp>
+# include <ndnboost/iostreams/detail/error.hpp>
+# include <ndnboost/iostreams/detail/ios.hpp> // failure.
+# include <ndnboost/iostreams/detail/select.hpp>
+# include <ndnboost/iostreams/operations.hpp>
+# include <ndnboost/iostreams/skip.hpp>
+# include <ndnboost/iostreams/traits.hpp> // mode_of, is_direct.
+# include <ndnboost/mpl/bool.hpp>
+# include <ndnboost/static_assert.hpp>
+# include <ndnboost/throw_exception.hpp>
+# include <ndnboost/type_traits/is_convertible.hpp>
+
+# include <ndnboost/iostreams/detail/config/disable_warnings.hpp>
+
+namespace ndnboost { namespace iostreams {
+
+namespace detail {
+
+//
+// Template name: restricted_indirect_device.
+// Description: Provides an restricted view of an indirect Device.
+// Template parameters:
+// Device - An indirect model of Device that models either Source or
+// SeekableDevice.
+//
+template<typename Device>
+class restricted_indirect_device : public device_adapter<Device> {
+private:
+ typedef typename detail::param_type<Device>::type param_type;
+public:
+ typedef typename char_type_of<Device>::type char_type;
+ typedef typename mode_of<Device>::type mode;
+ NDNBOOST_STATIC_ASSERT(!(is_convertible<mode, detail::two_sequence>::value));
+ struct category
+ : mode,
+ device_tag,
+ closable_tag,
+ flushable_tag,
+ localizable_tag,
+ optimally_buffered_tag
+ { };
+ restricted_indirect_device( param_type dev, stream_offset off,
+ stream_offset len = -1 );
+ std::streamsize read(char_type* s, std::streamsize n);
+ std::streamsize write(const char_type* s, std::streamsize n);
+ std::streampos seek(stream_offset off, NDNBOOST_IOS::seekdir way);
+private:
+ stream_offset beg_, pos_, end_;
+};
+
+//
+// Template name: restricted_direct_device.
+// Description: Provides an restricted view of a Direct Device.
+// Template parameters:
+// Device - A model of Direct and Device.
+//
+template<typename Device>
+class restricted_direct_device : public device_adapter<Device> {
+public:
+ typedef typename char_type_of<Device>::type char_type;
+ typedef std::pair<char_type*, char_type*> pair_type;
+ typedef typename mode_of<Device>::type mode;
+ NDNBOOST_STATIC_ASSERT(!(is_convertible<mode, detail::two_sequence>::value));
+ struct category
+ : mode_of<Device>::type,
+ device_tag,
+ direct_tag,
+ closable_tag,
+ localizable_tag
+ { };
+ restricted_direct_device( const Device& dev, stream_offset off,
+ stream_offset len = -1 );
+ pair_type input_sequence();
+ pair_type output_sequence();
+private:
+ pair_type sequence(mpl::true_);
+ pair_type sequence(mpl::false_);
+ char_type *beg_, *end_;
+};
+
+//
+// Template name: restricted_filter.
+// Description: Provides an restricted view of a Filter.
+// Template parameters:
+// Filter - An indirect model of Filter.
+//
+template<typename Filter>
+class restricted_filter : public filter_adapter<Filter> {
+public:
+ typedef typename char_type_of<Filter>::type char_type;
+ typedef typename mode_of<Filter>::type mode;
+ NDNBOOST_STATIC_ASSERT(!(is_convertible<mode, detail::two_sequence>::value));
+ struct category
+ : mode,
+ filter_tag,
+ multichar_tag,
+ closable_tag,
+ localizable_tag,
+ optimally_buffered_tag
+ { };
+ restricted_filter( const Filter& flt, stream_offset off,
+ stream_offset len = -1 );
+
+ template<typename Source>
+ std::streamsize read(Source& src, char_type* s, std::streamsize n)
+ {
+ using namespace std;
+ if (!open_)
+ open(src, NDNBOOST_IOS::in);
+ std::streamsize amt =
+ end_ != -1 ?
+ (std::min) (n, static_cast<std::streamsize>(end_ - pos_)) :
+ n;
+ std::streamsize result =
+ iostreams::read(this->component(), src, s, amt);
+ if (result != -1)
+ pos_ += result;
+ return result;
+ }
+
+ template<typename Sink>
+ std::streamsize write(Sink& snk, const char_type* s, std::streamsize n)
+ {
+ if (!open_)
+ open(snk, NDNBOOST_IOS::out);
+ if (end_ != -1 && pos_ + n >= end_) {
+ if(pos_ < end_)
+ pos_ += iostreams::write(this->component(),
+ snk, s, end_ - pos_);
+ ndnboost::throw_exception(bad_write());
+ }
+ std::streamsize result =
+ iostreams::write(this->component(), snk, s, n);
+ pos_ += result;
+ return result;
+ }
+
+ template<typename Device>
+ std::streampos seek(Device& dev, stream_offset off, NDNBOOST_IOS::seekdir way)
+ {
+ stream_offset next;
+ if (way == NDNBOOST_IOS::beg) {
+ next = beg_ + off;
+ } else if (way == NDNBOOST_IOS::cur) {
+ next = pos_ + off;
+ } else if (end_ != -1) {
+ next = end_ + off;
+ } else {
+ // Restriction is half-open; seek relative to the actual end.
+ pos_ = this->component().seek(dev, off, NDNBOOST_IOS::end);
+ if (pos_ < beg_)
+ ndnboost::throw_exception(bad_seek());
+ return offset_to_position(pos_ - beg_);
+ }
+ if (next < beg_ || (end_ != -1 && next >= end_))
+ ndnboost::throw_exception(bad_seek());
+ pos_ = this->component().seek(dev, next, NDNBOOST_IOS::cur);
+ return offset_to_position(pos_ - beg_);
+ }
+
+ template<typename Device>
+ void close(Device& dev)
+ {
+ open_ = false;
+ detail::close_all(this->component(), dev);
+ }
+
+ template<typename Device>
+ void close(Device& dev, NDNBOOST_IOS::openmode which)
+ {
+ open_ = false;
+ iostreams::close(this->component(), dev, which);
+ }
+private:
+ template<typename Device>
+ void open(Device& dev, NDNBOOST_IOS::openmode which)
+ {
+ typedef typename is_convertible<mode, dual_use>::type is_dual_use;
+ open_ = true;
+ which = is_dual_use() ? which : (NDNBOOST_IOS::in | NDNBOOST_IOS::out);
+ iostreams::skip(this->component(), dev, beg_, which);
+ }
+
+ stream_offset beg_, pos_, end_;
+ bool open_;
+};
+
+template<typename T>
+struct restriction_traits
+ : iostreams::select< // Disambiguation for Tru64.
+ is_filter<T>, restricted_filter<T>,
+ is_direct<T>, restricted_direct_device<T>,
+ else_, restricted_indirect_device<T>
+ >
+ { };
+
+} // End namespace detail.
+
+template<typename T>
+struct restriction : public detail::restriction_traits<T>::type {
+ typedef typename detail::param_type<T>::type param_type;
+ typedef typename detail::restriction_traits<T>::type base_type;
+ restriction(param_type t, stream_offset off, stream_offset len = -1)
+ : base_type(t, off, len)
+ { }
+};
+
+namespace detail {
+
+//--------------Implementation of restricted_indirect_device------------------//
+
+template<typename Device>
+restricted_indirect_device<Device>::restricted_indirect_device
+ (param_type dev, stream_offset off, stream_offset len)
+ : device_adapter<Device>(dev), beg_(off), pos_(off),
+ end_(len != -1 ? off + len : -1)
+{
+ if (len < -1 || off < 0)
+ ndnboost::throw_exception(NDNBOOST_IOSTREAMS_FAILURE("bad offset"));
+ iostreams::skip(this->component(), off);
+}
+
+template<typename Device>
+inline std::streamsize restricted_indirect_device<Device>::read
+ (char_type* s, std::streamsize n)
+{
+ using namespace std;
+ std::streamsize amt =
+ end_ != -1 ?
+ (std::min) (n, static_cast<std::streamsize>(end_ - pos_)) :
+ n;
+ std::streamsize result = iostreams::read(this->component(), s, amt);
+ if (result != -1)
+ pos_ += result;
+ return result;
+}
+
+template<typename Device>
+inline std::streamsize restricted_indirect_device<Device>::write
+ (const char_type* s, std::streamsize n)
+{
+ if (end_ != -1 && pos_ + n >= end_) {
+ if(pos_ < end_)
+ pos_ += iostreams::write(this->component(), s, end_ - pos_);
+ ndnboost::throw_exception(bad_write());
+ }
+ std::streamsize result = iostreams::write(this->component(), s, n);
+ pos_ += result;
+ return result;
+}
+
+template<typename Device>
+std::streampos restricted_indirect_device<Device>::seek
+ (stream_offset off, NDNBOOST_IOS::seekdir way)
+{
+ stream_offset next;
+ if (way == NDNBOOST_IOS::beg) {
+ next = beg_ + off;
+ } else if (way == NDNBOOST_IOS::cur) {
+ next = pos_ + off;
+ } else if (end_ != -1) {
+ next = end_ + off;
+ } else {
+ // Restriction is half-open; seek relative to the actual end.
+ pos_ = iostreams::seek(this->component(), off, NDNBOOST_IOS::end);
+ if (pos_ < beg_)
+ ndnboost::throw_exception(bad_seek());
+ return offset_to_position(pos_ - beg_);
+ }
+ if (next < beg_ || (end_ != -1 && next > end_))
+ ndnboost::throw_exception(bad_seek());
+ pos_ = iostreams::seek(this->component(), next - pos_, NDNBOOST_IOS::cur);
+ return offset_to_position(pos_ - beg_);
+}
+
+//--------------Implementation of restricted_direct_device--------------------//
+
+template<typename Device>
+restricted_direct_device<Device>::restricted_direct_device
+ (const Device& dev, stream_offset off, stream_offset len)
+ : device_adapter<Device>(dev), beg_(0), end_(0)
+{
+ std::pair<char_type*, char_type*> seq =
+ sequence(is_convertible<category, input>());
+ if ( off < 0 || len < -1 ||
+ (len != -1 && off + len > seq.second - seq.first) )
+ {
+ ndnboost::throw_exception(NDNBOOST_IOSTREAMS_FAILURE("bad offset"));
+ }
+ beg_ = seq.first + off;
+ end_ = len != -1 ?
+ seq.first + off + len :
+ seq.second;
+}
+
+template<typename Device>
+typename restricted_direct_device<Device>::pair_type
+restricted_direct_device<Device>::input_sequence()
+{
+ NDNBOOST_STATIC_ASSERT((is_convertible<category, input>::value));
+ return std::make_pair(beg_, end_);
+}
+
+template<typename Device>
+typename restricted_direct_device<Device>::pair_type
+restricted_direct_device<Device>::output_sequence()
+{
+ NDNBOOST_STATIC_ASSERT((is_convertible<category, output>::value));
+ return std::make_pair(beg_, end_);
+}
+
+template<typename Device>
+typename restricted_direct_device<Device>::pair_type
+restricted_direct_device<Device>::sequence(mpl::true_)
+{ return iostreams::input_sequence(this->component()); }
+
+template<typename Device>
+typename restricted_direct_device<Device>::pair_type
+restricted_direct_device<Device>::sequence(mpl::false_)
+{ return iostreams::output_sequence(this->component()); }
+
+//--------------Implementation of restricted_filter---------------------------//
+
+template<typename Filter>
+restricted_filter<Filter>::restricted_filter
+ (const Filter& flt, stream_offset off, stream_offset len)
+ : filter_adapter<Filter>(flt), beg_(off),
+ pos_(off), end_(len != -1 ? off + len : -1), open_(false)
+{
+ if (len < -1 || off < 0)
+ ndnboost::throw_exception(NDNBOOST_IOSTREAMS_FAILURE("bad offset"));
+}
+
+} // End namespace detail.
+
+} } // End namespaces iostreams, boost.
+
+#elif defined(NDNBOOST_IOSTREAMS_RESTRICT)
+
+namespace ndnboost { namespace iostreams {
+
+//--------------Implementation of restrict/slice------------------------------//
+
+// Note: The following workarounds are patterned after resolve.hpp. It has not
+// yet been confirmed that they are necessary.
+
+# ifndef NDNBOOST_IOSTREAMS_BROKEN_OVERLOAD_RESOLUTION //------------------------//
+# ifndef NDNBOOST_IOSTREAMS_NO_STREAM_TEMPLATES //------------------------------//
+
+template<typename T>
+restriction<T>
+NDNBOOST_IOSTREAMS_RESTRICT( const T& t, stream_offset off, stream_offset len = -1
+ NDNBOOST_IOSTREAMS_DISABLE_IF_STREAM(T) )
+{ return restriction<T>(t, off, len); }
+
+template<typename Ch, typename Tr>
+restriction< std::basic_streambuf<Ch, Tr> >
+NDNBOOST_IOSTREAMS_RESTRICT( std::basic_streambuf<Ch, Tr>& sb, stream_offset off,
+ stream_offset len = -1 )
+{ return restriction< std::basic_streambuf<Ch, Tr> >(sb, off, len); }
+
+template<typename Ch, typename Tr>
+restriction< std::basic_istream<Ch, Tr> >
+NDNBOOST_IOSTREAMS_RESTRICT
+ (std::basic_istream<Ch, Tr>& is, stream_offset off, stream_offset len = -1)
+{ return restriction< std::basic_istream<Ch, Tr> >(is, off, len); }
+
+template<typename Ch, typename Tr>
+restriction< std::basic_ostream<Ch, Tr> >
+NDNBOOST_IOSTREAMS_RESTRICT
+ (std::basic_ostream<Ch, Tr>& os, stream_offset off, stream_offset len = -1)
+{ return restriction< std::basic_ostream<Ch, Tr> >(os, off, len); }
+
+template<typename Ch, typename Tr>
+restriction< std::basic_iostream<Ch, Tr> >
+NDNBOOST_IOSTREAMS_RESTRICT
+ (std::basic_iostream<Ch, Tr>& io, stream_offset off, stream_offset len = -1)
+{ return restriction< std::basic_iostream<Ch, Tr> >(io, off, len); }
+
+# else // # ifndef NDNBOOST_IOSTREAMS_NO_STREAM_TEMPLATES //--------------------//
+
+template<typename T>
+restriction<T>
+NDNBOOST_IOSTREAMS_RESTRICT( const T& t, stream_offset off, stream_offset len = -1
+ NDNBOOST_IOSTREAMS_DISABLE_IF_STREAM(T) )
+{ return restriction<T>(t, off, len); }
+
+restriction<std::streambuf>
+NDNBOOST_IOSTREAMS_RESTRICT
+ (std::streambuf& sb, stream_offset off, stream_offset len = -1)
+{ return restriction<std::streambuf>(sb, off, len); }
+
+restriction<std::istream>
+NDNBOOST_IOSTREAMS_RESTRICT
+ (std::istream<Ch, Tr>& is, stream_offset off, stream_offset len = -1)
+{ return restriction<std::istream>(is, off, len); }
+
+restriction<std::ostream>
+NDNBOOST_IOSTREAMS_RESTRICT
+ (std::ostream<Ch, Tr>& os, stream_offset off, stream_offset len = -1)
+{ return restriction<std::ostream>(os, off, len); }
+
+restriction<std::iostream>
+NDNBOOST_IOSTREAMS_RESTRICT
+ (std::iostream<Ch, Tr>& io, stream_offset off, stream_offset len = -1)
+{ return restriction<std::iostream>(io, off, len); }
+
+# endif // # ifndef NDNBOOST_IOSTREAMS_NO_STREAM_TEMPLATES //-------------------//
+# else // #ifndef NDNBOOST_IOSTREAMS_BROKEN_OVERLOAD_RESOLUTION //---------------//
+
+template<typename T>
+restriction<T>
+NDNBOOST_IOSTREAMS_RESTRICT
+ (const T& t, stream_offset off, stream_offset len, mpl::true_)
+{ // Bad overload resolution.
+ return restriction<T>(const_cast<T&>(t, off, len));
+}
+
+template<typename T>
+restriction<T>
+NDNBOOST_IOSTREAMS_RESTRICT
+ (const T& t, stream_offset off, stream_offset len, mpl::false_)
+{ return restriction<T>(t, off, len); }
+
+template<typename T>
+restriction<T>
+NDNBOOST_IOSTREAMS_RESTRICT( const T& t, stream_offset off, stream_offset len = -1
+ NDNBOOST_IOSTREAMS_DISABLE_IF_STREAM(T) )
+{ return NDNBOOST_IOSTREAMS_RESTRICT(t, off, len, is_std_io<T>()); }
+
+# if !NDNBOOST_WORKAROUND(__BORLANDC__, < 0x600) && \
+ !NDNBOOST_WORKAROUND(NDNBOOST_MSVC, <= 1300) && \
+ !defined(__GNUC__) // ---------------------------------------------------//
+
+template<typename T>
+restriction<T>
+NDNBOOST_IOSTREAMS_RESTRICT(T& t, stream_offset off, stream_offset len = -1)
+{ return restriction<T>(t, off, len); }
+
+# endif // Borland 5.x, VC6-7.0 or GCC 2.9x //-------------------------------//
+# endif // #ifndef NDNBOOST_IOSTREAMS_BROKEN_OVERLOAD_RESOLUTION //--------------//
+
+} } // End namespaces iostreams, boost.
+
+#endif // #if !defined(NDNBOOST_IOSTREAMS_RESTRICT_IMPL_HPP_INCLUDED) ...