ndnboost: Include boost::iostreams for internal use.
diff --git a/include/ndnboost/iostreams/detail/streambuf/linked_streambuf.hpp b/include/ndnboost/iostreams/detail/streambuf/linked_streambuf.hpp
new file mode 100644
index 0000000..d6ec23d
--- /dev/null
+++ b/include/ndnboost/iostreams/detail/streambuf/linked_streambuf.hpp
@@ -0,0 +1,114 @@
+// (C) Copyright 2008 CodeRage, LLC (turkanis at coderage dot com)
+// (C) Copyright 2003-2007 Jonathan Turkanis
+// 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.
+
+#ifndef NDNBOOST_IOSTREAMS_DETAIL_LINKED_STREAMBUF_HPP_INCLUDED
+#define NDNBOOST_IOSTREAMS_DETAIL_LINKED_STREAMBUF_HPP_INCLUDED
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+#include <typeinfo>
+#include <ndnboost/config.hpp> // member template friends.
+#include <ndnboost/iostreams/detail/char_traits.hpp>
+#include <ndnboost/iostreams/detail/ios.hpp> // openmode.
+#include <ndnboost/iostreams/detail/streambuf.hpp>
+
+// Must come last.
+#include <ndnboost/iostreams/detail/config/disable_warnings.hpp> // MSVC.
+
+namespace ndnboost { namespace iostreams { namespace detail {
+
+template<typename Self, typename Ch, typename Tr, typename Alloc, typename Mode>
+class chain_base;
+
+template<typename Chain, typename Access, typename Mode> class chainbuf;
+
+#define NDNBOOST_IOSTREAMS_USING_PROTECTED_STREAMBUF_MEMBERS(base) \
+ using base::eback; using base::gptr; using base::egptr; \
+ using base::setg; using base::gbump; using base::pbase; \
+ using base::pptr; using base::epptr; using base::setp; \
+ using base::pbump; using base::underflow; using base::pbackfail; \
+ using base::xsgetn; using base::overflow; using base::xsputn; \
+ using base::sync; using base::seekoff; using base::seekpos; \
+ /**/
+
+template<typename Ch, typename Tr = NDNBOOST_IOSTREAMS_CHAR_TRAITS(Ch) >
+class linked_streambuf : public NDNBOOST_IOSTREAMS_BASIC_STREAMBUF(Ch, Tr) {
+protected:
+ linked_streambuf() : flags_(0) { }
+ void set_true_eof(bool eof)
+ {
+ flags_ = (flags_ & ~f_true_eof) | (eof ? f_true_eof : 0);
+ }
+public:
+
+ // Should be called only after receiving an ordinary EOF indication,
+ // to confirm that it represents EOF rather than WOULD_BLOCK.
+ bool true_eof() const { return (flags_ & f_true_eof) != 0; }
+protected:
+
+ //----------grant friendship to chain_base and chainbuf-------------------//
+
+#ifndef NDNBOOST_NO_MEMBER_TEMPLATE_FRIENDS
+ template< typename Self, typename ChT, typename TrT,
+ typename Alloc, typename Mode >
+ friend class chain_base;
+ template<typename Chain, typename Mode, typename Access>
+ friend class chainbuf;
+ template<typename U>
+ friend class member_close_operation;
+#else
+ public:
+ typedef NDNBOOST_IOSTREAMS_BASIC_STREAMBUF(Ch, Tr) base;
+ NDNBOOST_IOSTREAMS_USING_PROTECTED_STREAMBUF_MEMBERS(base)
+#endif
+ void close(NDNBOOST_IOS::openmode which)
+ {
+ if ( which == NDNBOOST_IOS::in &&
+ (flags_ & f_input_closed) == 0 )
+ {
+ flags_ |= f_input_closed;
+ close_impl(which);
+ }
+ if ( which == NDNBOOST_IOS::out &&
+ (flags_ & f_output_closed) == 0 )
+ {
+ flags_ |= f_output_closed;
+ close_impl(which);
+ }
+ }
+ void set_needs_close()
+ {
+ flags_ &= ~(f_input_closed | f_output_closed);
+ }
+ virtual void set_next(linked_streambuf<Ch, Tr>* /* next */) { }
+ virtual void close_impl(NDNBOOST_IOS::openmode) = 0;
+ virtual bool auto_close() const = 0;
+ virtual void set_auto_close(bool) = 0;
+ virtual bool strict_sync() = 0;
+ virtual const std::type_info& component_type() const = 0;
+ virtual void* component_impl() = 0;
+#ifndef NDNBOOST_NO_MEMBER_TEMPLATE_FRIENDS
+ private:
+#else
+ public:
+#endif
+private:
+ enum flag_type {
+ f_true_eof = 1,
+ f_input_closed = f_true_eof << 1,
+ f_output_closed = f_input_closed << 1
+ };
+ int flags_;
+};
+
+} } } // End namespaces detail, iostreams, boost.
+
+#include <ndnboost/iostreams/detail/config/enable_warnings.hpp> // MSVC.
+
+#endif // #ifndef NDNBOOST_IOSTREAMS_DETAIL_LINKED_STREAMBUF_HPP_INCLUDED