stabilize build system: depends, installer, boost/bdb fixes, cross targets groundwork
This commit is contained in:
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// (C) Copyright 2008 CodeRage, LLC (turkanis at coderage dot com)
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// (C) Copyright 2003-2007 Jonathan Turkanis
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt.)
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// See http://www.boost.org/libs/iostreams for documentation.
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#ifndef BOOST_IOSTREAMS_DETAIL_CHAINBUF_HPP_INCLUDED
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#define BOOST_IOSTREAMS_DETAIL_CHAINBUF_HPP_INCLUDED
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#if defined(_MSC_VER)
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# pragma once
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#endif
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#include <boost/config.hpp> // BOOST_MSVC, template friends.
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#include <boost/detail/workaround.hpp>
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#include <boost/iostreams/chain.hpp>
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#include <boost/iostreams/detail/access_control.hpp>
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#include <boost/iostreams/detail/config/wide_streams.hpp>
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#include <boost/iostreams/detail/streambuf.hpp>
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#include <boost/iostreams/detail/streambuf/linked_streambuf.hpp>
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#include <boost/iostreams/detail/translate_int_type.hpp>
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#include <boost/iostreams/traits.hpp>
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#include <boost/noncopyable.hpp>
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namespace boost { namespace iostreams { namespace detail {
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//--------------Definition of chainbuf----------------------------------------//
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//
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// Template name: chainbuf.
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// Description: Stream buffer which operates by delegating to the first
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// linked_streambuf in a chain.
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// Template parameters:
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// Chain - The chain type.
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//
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template<typename Chain, typename Mode, typename Access>
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class chainbuf
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: public BOOST_IOSTREAMS_BASIC_STREAMBUF(
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typename Chain::char_type,
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typename Chain::traits_type
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),
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public access_control<typename Chain::client_type, Access>,
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private noncopyable
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{
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private:
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typedef access_control<chain_client<Chain>, Access> client_type;
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public:
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typedef typename Chain::char_type char_type;
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BOOST_IOSTREAMS_STREAMBUF_TYPEDEFS(typename Chain::traits_type)
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protected:
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typedef linked_streambuf<char_type, traits_type> delegate_type;
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chainbuf() { client_type::set_chain(&chain_); }
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int_type underflow()
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{ sentry t(this); return translate(delegate().underflow()); }
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int_type pbackfail(int_type c)
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{ sentry t(this); return translate(delegate().pbackfail(c)); }
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std::streamsize xsgetn(char_type* s, std::streamsize n)
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{ sentry t(this); return delegate().xsgetn(s, n); }
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int_type overflow(int_type c)
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{ sentry t(this); return translate(delegate().overflow(c)); }
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std::streamsize xsputn(const char_type* s, std::streamsize n)
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{ sentry t(this); return delegate().xsputn(s, n); }
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int sync() { sentry t(this); return delegate().sync(); }
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pos_type seekoff( off_type off, BOOST_IOS::seekdir way,
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BOOST_IOS::openmode which =
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BOOST_IOS::in | BOOST_IOS::out )
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{ sentry t(this); return delegate().seekoff(off, way, which); }
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pos_type seekpos( pos_type sp,
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BOOST_IOS::openmode which =
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BOOST_IOS::in | BOOST_IOS::out )
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{ sentry t(this); return delegate().seekpos(sp, which); }
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protected:
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typedef BOOST_IOSTREAMS_BASIC_STREAMBUF(
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typename Chain::char_type,
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typename Chain::traits_type
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) base_type;
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private:
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// Translate from std int_type to chain's int_type.
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typedef BOOST_IOSTREAMS_CHAR_TRAITS(char_type) std_traits;
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typedef typename Chain::traits_type chain_traits;
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static typename chain_traits::int_type
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translate(typename std_traits::int_type c)
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{ return translate_int_type<std_traits, chain_traits>(c); }
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delegate_type& delegate()
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{ return static_cast<delegate_type&>(chain_.front()); }
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void get_pointers()
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{
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this->setg(delegate().eback(), delegate().gptr(), delegate().egptr());
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this->setp(delegate().pbase(), delegate().epptr());
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this->pbump((int) (delegate().pptr() - delegate().pbase()));
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}
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void set_pointers()
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{
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delegate().setg(this->eback(), this->gptr(), this->egptr());
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delegate().setp(this->pbase(), this->epptr());
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delegate().pbump((int) (this->pptr() - this->pbase()));
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}
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struct sentry {
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sentry(chainbuf<Chain, Mode, Access>* buf) : buf_(buf)
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{ buf_->set_pointers(); }
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~sentry() { buf_->get_pointers(); }
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chainbuf<Chain, Mode, Access>* buf_;
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};
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friend struct sentry;
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Chain chain_;
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};
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} } } // End namespaces detail, iostreams, boost.
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#endif // #ifndef BOOST_IOSTREAMS_DETAIL_CHAINBUF_HPP_INCLUDED
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+311
@@ -0,0 +1,311 @@
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// (C) Copyright 2008 CodeRage, LLC (turkanis at coderage dot com)
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// (C) Copyright 2003-2007 Jonathan Turkanis
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt.)
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// See http://www.boost.org/libs/iostreams for documentation.
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#ifndef BOOST_IOSTREAMS_DETAIL_DIRECT_STREAMBUF_HPP_INCLUDED
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#define BOOST_IOSTREAMS_DETAIL_DIRECT_STREAMBUF_HPP_INCLUDED
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#if defined(_MSC_VER)
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# pragma once
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#endif
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#include <boost/assert.hpp>
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#include <cstddef>
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#include <typeinfo>
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#include <utility> // pair.
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#include <boost/config.hpp> // BOOST_DEDUCED_TYPENAME,
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#include <boost/iostreams/detail/char_traits.hpp> // member template friends.
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#include <boost/iostreams/detail/config/wide_streams.hpp>
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#include <boost/iostreams/detail/error.hpp>
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#include <boost/iostreams/detail/execute.hpp>
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#include <boost/iostreams/detail/functional.hpp>
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#include <boost/iostreams/detail/ios.hpp>
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#include <boost/iostreams/detail/optional.hpp>
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#include <boost/iostreams/detail/streambuf.hpp>
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#include <boost/iostreams/detail/streambuf/linked_streambuf.hpp>
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#include <boost/iostreams/operations.hpp>
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#include <boost/iostreams/positioning.hpp>
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#include <boost/iostreams/traits.hpp>
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#include <boost/throw_exception.hpp>
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// Must come last.
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#include <boost/iostreams/detail/config/disable_warnings.hpp> // MSVC.
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namespace boost { namespace iostreams {
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namespace detail {
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template< typename T,
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typename Tr =
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BOOST_IOSTREAMS_CHAR_TRAITS(
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BOOST_DEDUCED_TYPENAME char_type_of<T>::type
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) >
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class direct_streambuf
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: public linked_streambuf<BOOST_DEDUCED_TYPENAME char_type_of<T>::type, Tr>
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{
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public:
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typedef typename char_type_of<T>::type char_type;
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BOOST_IOSTREAMS_STREAMBUF_TYPEDEFS(Tr)
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private:
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typedef linked_streambuf<char_type, traits_type> base_type;
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typedef typename category_of<T>::type category;
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typedef BOOST_IOSTREAMS_BASIC_STREAMBUF(
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char_type, traits_type
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) streambuf_type;
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public: // stream needs access.
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void open(const T& t, std::streamsize buffer_size,
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std::streamsize pback_size);
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bool is_open() const;
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void close();
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bool auto_close() const { return auto_close_; }
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void set_auto_close(bool close) { auto_close_ = close; }
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bool strict_sync() { return true; }
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// Declared in linked_streambuf.
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T* component() { return storage_.get(); }
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protected:
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BOOST_IOSTREAMS_USING_PROTECTED_STREAMBUF_MEMBERS(base_type)
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direct_streambuf();
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//--------------Virtual functions-----------------------------------------//
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// Declared in linked_streambuf.
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void close_impl(BOOST_IOS::openmode m);
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const std::type_info& component_type() const { return typeid(T); }
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void* component_impl() { return component(); }
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#ifdef BOOST_IOSTREAMS_NO_STREAM_TEMPLATES
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public:
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#endif
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// Declared in basic_streambuf.
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int_type underflow();
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int_type pbackfail(int_type c);
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int_type overflow(int_type c);
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pos_type seekoff( off_type off, BOOST_IOS::seekdir way,
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BOOST_IOS::openmode which );
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pos_type seekpos(pos_type sp, BOOST_IOS::openmode which);
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private:
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pos_type seek_impl( stream_offset off, BOOST_IOS::seekdir way,
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BOOST_IOS::openmode which );
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void init_input(any_tag) { }
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void init_input(input);
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void init_output(any_tag) { }
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void init_output(output);
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void init_get_area();
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void init_put_area();
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bool one_head() const;
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bool two_head() const;
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optional<T> storage_;
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char_type *ibeg_, *iend_, *obeg_, *oend_;
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bool auto_close_;
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};
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//------------------Implementation of direct_streambuf------------------------//
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template<typename T, typename Tr>
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direct_streambuf<T, Tr>::direct_streambuf()
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: ibeg_(0), iend_(0), obeg_(0), oend_(0), auto_close_(true)
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{ this->set_true_eof(true); }
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template<typename T, typename Tr>
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void direct_streambuf<T, Tr>::open
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(const T& t, std::streamsize, std::streamsize)
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{
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storage_.reset(t);
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init_input(category());
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init_output(category());
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setg(0, 0, 0);
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setp(0, 0);
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this->set_needs_close();
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}
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template<typename T, typename Tr>
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bool direct_streambuf<T, Tr>::is_open() const
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{ return ibeg_ != 0 || obeg_ != 0; }
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template<typename T, typename Tr>
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void direct_streambuf<T, Tr>::close()
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{
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base_type* self = this;
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detail::execute_all( detail::call_member_close(*self, BOOST_IOS::in),
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detail::call_member_close(*self, BOOST_IOS::out),
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detail::call_reset(storage_) );
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}
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template<typename T, typename Tr>
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typename direct_streambuf<T, Tr>::int_type
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direct_streambuf<T, Tr>::underflow()
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{
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if (!ibeg_)
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boost::throw_exception(cant_read());
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if (!gptr())
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init_get_area();
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return gptr() != iend_ ?
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traits_type::to_int_type(*gptr()) :
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traits_type::eof();
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}
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template<typename T, typename Tr>
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typename direct_streambuf<T, Tr>::int_type
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direct_streambuf<T, Tr>::pbackfail(int_type c)
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{
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using namespace std;
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if (!ibeg_)
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boost::throw_exception(cant_read());
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if (gptr() != 0 && gptr() != ibeg_) {
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gbump(-1);
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if (!traits_type::eq_int_type(c, traits_type::eof()))
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*gptr() = traits_type::to_char_type(c);
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return traits_type::not_eof(c);
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}
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boost::throw_exception(bad_putback());
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}
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template<typename T, typename Tr>
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typename direct_streambuf<T, Tr>::int_type
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direct_streambuf<T, Tr>::overflow(int_type c)
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{
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using namespace std;
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if (!obeg_)
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boost::throw_exception(BOOST_IOSTREAMS_FAILURE("no write access"));
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if (!pptr()) init_put_area();
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if (!traits_type::eq_int_type(c, traits_type::eof())) {
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if (pptr() == oend_)
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boost::throw_exception(
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BOOST_IOSTREAMS_FAILURE("write area exhausted")
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);
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*pptr() = traits_type::to_char_type(c);
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pbump(1);
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return c;
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}
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return traits_type::not_eof(c);
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}
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template<typename T, typename Tr>
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inline typename direct_streambuf<T, Tr>::pos_type
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direct_streambuf<T, Tr>::seekoff
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(off_type off, BOOST_IOS::seekdir way, BOOST_IOS::openmode which)
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{ return seek_impl(off, way, which); }
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template<typename T, typename Tr>
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inline typename direct_streambuf<T, Tr>::pos_type
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direct_streambuf<T, Tr>::seekpos
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(pos_type sp, BOOST_IOS::openmode which)
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{
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return seek_impl(position_to_offset(sp), BOOST_IOS::beg, which);
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}
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template<typename T, typename Tr>
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void direct_streambuf<T, Tr>::close_impl(BOOST_IOS::openmode which)
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{
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if (which == BOOST_IOS::in && ibeg_ != 0) {
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setg(0, 0, 0);
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ibeg_ = iend_ = 0;
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}
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if (which == BOOST_IOS::out && obeg_ != 0) {
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sync();
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setp(0, 0);
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obeg_ = oend_ = 0;
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}
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boost::iostreams::close(*storage_, which);
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}
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template<typename T, typename Tr>
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typename direct_streambuf<T, Tr>::pos_type direct_streambuf<T, Tr>::seek_impl
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(stream_offset off, BOOST_IOS::seekdir way, BOOST_IOS::openmode which)
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{
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using namespace std;
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BOOST_IOS::openmode both = BOOST_IOS::in | BOOST_IOS::out;
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if (two_head() && (which & both) == both)
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boost::throw_exception(bad_seek());
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stream_offset result = -1;
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bool one = one_head();
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if (one && (pptr() != 0 || gptr()== 0))
|
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init_get_area(); // Switch to input mode, for code reuse.
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if (one || ((which & BOOST_IOS::in) != 0 && ibeg_ != 0)) {
|
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if (!gptr()) setg(ibeg_, ibeg_, iend_);
|
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ptrdiff_t next = 0;
|
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switch (way) {
|
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case BOOST_IOS::beg: next = off; break;
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case BOOST_IOS::cur: next = (gptr() - ibeg_) + off; break;
|
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case BOOST_IOS::end: next = (iend_ - ibeg_) + off; break;
|
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default: BOOST_ASSERT(0);
|
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}
|
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if (next < 0 || next > (iend_ - ibeg_))
|
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boost::throw_exception(bad_seek());
|
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setg(ibeg_, ibeg_ + next, iend_);
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result = next;
|
||||
}
|
||||
if (!one && (which & BOOST_IOS::out) != 0 && obeg_ != 0) {
|
||||
if (!pptr()) setp(obeg_, oend_);
|
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ptrdiff_t next = 0;
|
||||
switch (way) {
|
||||
case BOOST_IOS::beg: next = off; break;
|
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case BOOST_IOS::cur: next = (pptr() - obeg_) + off; break;
|
||||
case BOOST_IOS::end: next = (oend_ - obeg_) + off; break;
|
||||
default: BOOST_ASSERT(0);
|
||||
}
|
||||
if (next < 0 || next > (oend_ - obeg_))
|
||||
boost::throw_exception(bad_seek());
|
||||
pbump(static_cast<int>(next - (pptr() - obeg_)));
|
||||
result = next;
|
||||
}
|
||||
return offset_to_position(result);
|
||||
}
|
||||
|
||||
template<typename T, typename Tr>
|
||||
void direct_streambuf<T, Tr>::init_input(input)
|
||||
{
|
||||
std::pair<char_type*, char_type*> p = input_sequence(*storage_);
|
||||
ibeg_ = p.first;
|
||||
iend_ = p.second;
|
||||
}
|
||||
|
||||
template<typename T, typename Tr>
|
||||
void direct_streambuf<T, Tr>::init_output(output)
|
||||
{
|
||||
std::pair<char_type*, char_type*> p = output_sequence(*storage_);
|
||||
obeg_ = p.first;
|
||||
oend_ = p.second;
|
||||
}
|
||||
|
||||
template<typename T, typename Tr>
|
||||
void direct_streambuf<T, Tr>::init_get_area()
|
||||
{
|
||||
setg(ibeg_, ibeg_, iend_);
|
||||
if (one_head() && pptr()) {
|
||||
gbump(static_cast<int>(pptr() - obeg_));
|
||||
setp(0, 0);
|
||||
}
|
||||
}
|
||||
|
||||
template<typename T, typename Tr>
|
||||
void direct_streambuf<T, Tr>::init_put_area()
|
||||
{
|
||||
setp(obeg_, oend_);
|
||||
if (one_head() && gptr()) {
|
||||
pbump(static_cast<int>(gptr() - ibeg_));
|
||||
setg(0, 0, 0);
|
||||
}
|
||||
}
|
||||
|
||||
template<typename T, typename Tr>
|
||||
inline bool direct_streambuf<T, Tr>::one_head() const
|
||||
{ return ibeg_ && obeg_ && ibeg_ == obeg_; }
|
||||
|
||||
template<typename T, typename Tr>
|
||||
inline bool direct_streambuf<T, Tr>::two_head() const
|
||||
{ return ibeg_ && obeg_ && ibeg_ != obeg_; }
|
||||
|
||||
//----------------------------------------------------------------------------//
|
||||
|
||||
} // End namespace detail.
|
||||
|
||||
} } // End namespaces iostreams, boost.
|
||||
|
||||
#include <boost/iostreams/detail/config/enable_warnings.hpp> // MSVC
|
||||
|
||||
#endif // #ifndef BOOST_IOSTREAMS_DETAIL_DIRECT_STREAMBUF_HPP_INCLUDED
|
||||
+447
@@ -0,0 +1,447 @@
|
||||
// (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.
|
||||
|
||||
// This material is heavily indebted to the discussion and code samples in
|
||||
// A. Langer and K. Kreft, "Standard C++ IOStreams and Locales",
|
||||
// Addison-Wesley, 2000, pp. 228-43.
|
||||
|
||||
// User "GMSB" provided an optimization for small seeks.
|
||||
|
||||
#ifndef BOOST_IOSTREAMS_DETAIL_INDIRECT_STREAMBUF_HPP_INCLUDED
|
||||
#define BOOST_IOSTREAMS_DETAIL_INDIRECT_STREAMBUF_HPP_INCLUDED
|
||||
|
||||
#include <algorithm> // min, max.
|
||||
#include <cassert>
|
||||
#include <exception>
|
||||
#include <typeinfo>
|
||||
#include <boost/config.hpp> // Member template friends.
|
||||
#include <boost/detail/workaround.hpp>
|
||||
#include <boost/iostreams/constants.hpp>
|
||||
#include <boost/iostreams/detail/adapter/concept_adapter.hpp>
|
||||
#include <boost/iostreams/detail/buffer.hpp>
|
||||
#include <boost/iostreams/detail/config/wide_streams.hpp>
|
||||
#include <boost/iostreams/detail/double_object.hpp>
|
||||
#include <boost/iostreams/detail/execute.hpp>
|
||||
#include <boost/iostreams/detail/functional.hpp>
|
||||
#include <boost/iostreams/detail/ios.hpp>
|
||||
#include <boost/iostreams/detail/optional.hpp>
|
||||
#include <boost/iostreams/detail/push.hpp>
|
||||
#include <boost/iostreams/detail/streambuf/linked_streambuf.hpp>
|
||||
#include <boost/iostreams/operations.hpp>
|
||||
#include <boost/iostreams/positioning.hpp>
|
||||
#include <boost/iostreams/traits.hpp>
|
||||
#include <boost/iostreams/operations.hpp>
|
||||
#include <boost/mpl/if.hpp>
|
||||
#include <boost/throw_exception.hpp>
|
||||
#include <boost/type_traits/is_convertible.hpp>
|
||||
|
||||
// Must come last.
|
||||
#include <boost/iostreams/detail/config/disable_warnings.hpp> // MSVC, BCC 5.x
|
||||
|
||||
namespace boost { namespace iostreams { namespace detail {
|
||||
|
||||
//
|
||||
// Description: The implementation of basic_streambuf used by chains.
|
||||
//
|
||||
template<typename T, typename Tr, typename Alloc, typename Mode>
|
||||
class indirect_streambuf
|
||||
: public linked_streambuf<BOOST_DEDUCED_TYPENAME char_type_of<T>::type, Tr>
|
||||
{
|
||||
public:
|
||||
typedef typename char_type_of<T>::type char_type;
|
||||
BOOST_IOSTREAMS_STREAMBUF_TYPEDEFS(Tr)
|
||||
private:
|
||||
typedef typename category_of<T>::type category;
|
||||
typedef concept_adapter<T> wrapper;
|
||||
typedef detail::basic_buffer<char_type, Alloc> buffer_type;
|
||||
typedef indirect_streambuf<T, Tr, Alloc, Mode> my_type;
|
||||
typedef detail::linked_streambuf<char_type, traits_type> base_type;
|
||||
typedef linked_streambuf<char_type, Tr> streambuf_type;
|
||||
public:
|
||||
indirect_streambuf();
|
||||
|
||||
void open(const T& t BOOST_IOSTREAMS_PUSH_PARAMS());
|
||||
bool is_open() const;
|
||||
void close();
|
||||
bool auto_close() const;
|
||||
void set_auto_close(bool close);
|
||||
bool strict_sync();
|
||||
|
||||
// Declared in linked_streambuf.
|
||||
T* component() { return &*obj(); }
|
||||
protected:
|
||||
BOOST_IOSTREAMS_USING_PROTECTED_STREAMBUF_MEMBERS(base_type)
|
||||
|
||||
//----------virtual functions---------------------------------------------//
|
||||
|
||||
#ifndef BOOST_IOSTREAMS_NO_LOCALE
|
||||
void imbue(const std::locale& loc);
|
||||
#endif
|
||||
#ifdef BOOST_IOSTREAMS_NO_STREAM_TEMPLATES
|
||||
public:
|
||||
#endif
|
||||
int_type underflow();
|
||||
int_type pbackfail(int_type c);
|
||||
int_type overflow(int_type c);
|
||||
int sync();
|
||||
pos_type seekoff( off_type off, BOOST_IOS::seekdir way,
|
||||
BOOST_IOS::openmode which );
|
||||
pos_type seekpos(pos_type sp, BOOST_IOS::openmode which);
|
||||
|
||||
// Declared in linked_streambuf.
|
||||
void set_next(streambuf_type* next);
|
||||
void close_impl(BOOST_IOS::openmode m);
|
||||
const std::type_info& component_type() const { return typeid(T); }
|
||||
void* component_impl() { return component(); }
|
||||
private:
|
||||
|
||||
//----------Accessor functions--------------------------------------------//
|
||||
|
||||
wrapper& obj() { return *storage_; }
|
||||
streambuf_type* next() const { return next_; }
|
||||
buffer_type& in() { return buffer_.first(); }
|
||||
buffer_type& out() { return buffer_.second(); }
|
||||
bool can_read() const { return is_convertible<Mode, input>::value; }
|
||||
bool can_write() const { return is_convertible<Mode, output>::value; }
|
||||
bool output_buffered() const { return (flags_ & f_output_buffered) != 0; }
|
||||
bool shared_buffer() const { return is_convertible<Mode, seekable>::value || is_convertible<Mode, dual_seekable>::value; }
|
||||
void set_flags(int f) { flags_ = f; }
|
||||
|
||||
//----------State changing functions--------------------------------------//
|
||||
|
||||
virtual void init_get_area();
|
||||
virtual void init_put_area();
|
||||
|
||||
//----------Utility function----------------------------------------------//
|
||||
|
||||
pos_type seek_impl( stream_offset off, BOOST_IOS::seekdir way,
|
||||
BOOST_IOS::openmode which );
|
||||
void sync_impl();
|
||||
|
||||
enum flag_type {
|
||||
f_open = 1,
|
||||
f_output_buffered = f_open << 1,
|
||||
f_auto_close = f_output_buffered << 1
|
||||
};
|
||||
|
||||
optional<wrapper> storage_;
|
||||
streambuf_type* next_;
|
||||
double_object<
|
||||
buffer_type,
|
||||
is_convertible<
|
||||
Mode,
|
||||
two_sequence
|
||||
>
|
||||
> buffer_;
|
||||
std::streamsize pback_size_;
|
||||
int flags_;
|
||||
};
|
||||
|
||||
//--------------Implementation of indirect_streambuf--------------------------//
|
||||
|
||||
template<typename T, typename Tr, typename Alloc, typename Mode>
|
||||
indirect_streambuf<T, Tr, Alloc, Mode>::indirect_streambuf()
|
||||
: next_(0), pback_size_(0), flags_(f_auto_close) { }
|
||||
|
||||
//--------------Implementation of open, is_open and close---------------------//
|
||||
|
||||
template<typename T, typename Tr, typename Alloc, typename Mode>
|
||||
void indirect_streambuf<T, Tr, Alloc, Mode>::open
|
||||
(const T& t, std::streamsize buffer_size, std::streamsize pback_size)
|
||||
{
|
||||
using namespace std;
|
||||
|
||||
// Normalize buffer sizes.
|
||||
buffer_size =
|
||||
(buffer_size != -1) ?
|
||||
buffer_size :
|
||||
iostreams::optimal_buffer_size(t);
|
||||
pback_size =
|
||||
(pback_size != -1) ?
|
||||
pback_size :
|
||||
default_pback_buffer_size;
|
||||
|
||||
// Construct input buffer.
|
||||
if (can_read()) {
|
||||
pback_size_ = (std::max)(std::streamsize(2), pback_size); // STLPort needs 2.
|
||||
std::streamsize size =
|
||||
pback_size_ +
|
||||
( buffer_size ? buffer_size: std::streamsize(1) );
|
||||
in().resize(static_cast<int>(size));
|
||||
if (!shared_buffer())
|
||||
init_get_area();
|
||||
}
|
||||
|
||||
// Construct output buffer.
|
||||
if (can_write() && !shared_buffer()) {
|
||||
if (buffer_size != std::streamsize(0))
|
||||
out().resize(static_cast<int>(buffer_size));
|
||||
init_put_area();
|
||||
}
|
||||
|
||||
storage_.reset(wrapper(t));
|
||||
flags_ |= f_open;
|
||||
if (can_write() && buffer_size > 1)
|
||||
flags_ |= f_output_buffered;
|
||||
this->set_true_eof(false);
|
||||
this->set_needs_close();
|
||||
}
|
||||
|
||||
template<typename T, typename Tr, typename Alloc, typename Mode>
|
||||
inline bool indirect_streambuf<T, Tr, Alloc, Mode>::is_open() const
|
||||
{ return (flags_ & f_open) != 0; }
|
||||
|
||||
template<typename T, typename Tr, typename Alloc, typename Mode>
|
||||
void indirect_streambuf<T, Tr, Alloc, Mode>::close()
|
||||
{
|
||||
using namespace std;
|
||||
base_type* self = this;
|
||||
detail::execute_all(
|
||||
detail::call_member_close(*self, BOOST_IOS::in),
|
||||
detail::call_member_close(*self, BOOST_IOS::out),
|
||||
detail::call_reset(storage_),
|
||||
detail::clear_flags(flags_)
|
||||
);
|
||||
}
|
||||
|
||||
template<typename T, typename Tr, typename Alloc, typename Mode>
|
||||
bool indirect_streambuf<T, Tr, Alloc, Mode>::auto_close() const
|
||||
{ return (flags_ & f_auto_close) != 0; }
|
||||
|
||||
template<typename T, typename Tr, typename Alloc, typename Mode>
|
||||
void indirect_streambuf<T, Tr, Alloc, Mode>::set_auto_close(bool close)
|
||||
{ flags_ = (flags_ & ~f_auto_close) | (close ? f_auto_close : 0); }
|
||||
|
||||
//--------------Implementation virtual functions------------------------------//
|
||||
|
||||
#ifndef BOOST_IOSTREAMS_NO_LOCALE
|
||||
template<typename T, typename Tr, typename Alloc, typename Mode>
|
||||
void indirect_streambuf<T, Tr, Alloc, Mode>::imbue(const std::locale& loc)
|
||||
{
|
||||
if (is_open()) {
|
||||
obj().imbue(loc);
|
||||
if (next_)
|
||||
next_->pubimbue(loc);
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
template<typename T, typename Tr, typename Alloc, typename Mode>
|
||||
typename indirect_streambuf<T, Tr, Alloc, Mode>::int_type
|
||||
indirect_streambuf<T, Tr, Alloc, Mode>::underflow()
|
||||
{
|
||||
using namespace std;
|
||||
if (!gptr()) init_get_area();
|
||||
buffer_type& buf = in();
|
||||
if (gptr() < egptr()) return traits_type::to_int_type(*gptr());
|
||||
|
||||
// Fill putback buffer.
|
||||
std::streamsize keep =
|
||||
(std::min)( static_cast<std::streamsize>(gptr() - eback()),
|
||||
pback_size_ );
|
||||
if (keep)
|
||||
traits_type::move( buf.data() + (pback_size_ - keep),
|
||||
gptr() - keep, keep );
|
||||
|
||||
// Set pointers to reasonable values in case read throws.
|
||||
setg( buf.data() + pback_size_ - keep,
|
||||
buf.data() + pback_size_,
|
||||
buf.data() + pback_size_ );
|
||||
|
||||
// Read from source.
|
||||
std::streamsize chars =
|
||||
obj().read(buf.data() + pback_size_, buf.size() - pback_size_, next_);
|
||||
if (chars == -1) {
|
||||
this->set_true_eof(true);
|
||||
chars = 0;
|
||||
}
|
||||
setg(eback(), gptr(), buf.data() + pback_size_ + chars);
|
||||
return chars != 0 ?
|
||||
traits_type::to_int_type(*gptr()) :
|
||||
traits_type::eof();
|
||||
}
|
||||
|
||||
template<typename T, typename Tr, typename Alloc, typename Mode>
|
||||
typename indirect_streambuf<T, Tr, Alloc, Mode>::int_type
|
||||
indirect_streambuf<T, Tr, Alloc, Mode>::pbackfail(int_type c)
|
||||
{
|
||||
if (gptr() != eback()) {
|
||||
gbump(-1);
|
||||
if (!traits_type::eq_int_type(c, traits_type::eof()))
|
||||
*gptr() = traits_type::to_char_type(c);
|
||||
return traits_type::not_eof(c);
|
||||
} else {
|
||||
boost::throw_exception(bad_putback());
|
||||
}
|
||||
}
|
||||
|
||||
template<typename T, typename Tr, typename Alloc, typename Mode>
|
||||
typename indirect_streambuf<T, Tr, Alloc, Mode>::int_type
|
||||
indirect_streambuf<T, Tr, Alloc, Mode>::overflow(int_type c)
|
||||
{
|
||||
if ( (output_buffered() && pptr() == 0) ||
|
||||
(shared_buffer() && gptr() != 0) )
|
||||
{
|
||||
init_put_area();
|
||||
}
|
||||
if (!traits_type::eq_int_type(c, traits_type::eof())) {
|
||||
if (output_buffered()) {
|
||||
if (pptr() == epptr()) {
|
||||
sync_impl();
|
||||
if (pptr() == epptr())
|
||||
return traits_type::eof();
|
||||
}
|
||||
*pptr() = traits_type::to_char_type(c);
|
||||
pbump(1);
|
||||
} else {
|
||||
char_type d = traits_type::to_char_type(c);
|
||||
if (obj().write(&d, 1, next_) != 1)
|
||||
return traits_type::eof();
|
||||
}
|
||||
}
|
||||
return traits_type::not_eof(c);
|
||||
}
|
||||
|
||||
template<typename T, typename Tr, typename Alloc, typename Mode>
|
||||
int indirect_streambuf<T, Tr, Alloc, Mode>::sync()
|
||||
{
|
||||
try { // sync() is no-throw.
|
||||
sync_impl();
|
||||
obj().flush(next_);
|
||||
return 0;
|
||||
} catch (...) { return -1; }
|
||||
}
|
||||
|
||||
template<typename T, typename Tr, typename Alloc, typename Mode>
|
||||
bool indirect_streambuf<T, Tr, Alloc, Mode>::strict_sync()
|
||||
{
|
||||
try { // sync() is no-throw.
|
||||
sync_impl();
|
||||
return obj().flush(next_);
|
||||
} catch (...) { return false; }
|
||||
}
|
||||
|
||||
template<typename T, typename Tr, typename Alloc, typename Mode>
|
||||
inline typename indirect_streambuf<T, Tr, Alloc, Mode>::pos_type
|
||||
indirect_streambuf<T, Tr, Alloc, Mode>::seekoff
|
||||
(off_type off, BOOST_IOS::seekdir way, BOOST_IOS::openmode which)
|
||||
{ return seek_impl(off, way, which); }
|
||||
|
||||
template<typename T, typename Tr, typename Alloc, typename Mode>
|
||||
inline typename indirect_streambuf<T, Tr, Alloc, Mode>::pos_type
|
||||
indirect_streambuf<T, Tr, Alloc, Mode>::seekpos
|
||||
(pos_type sp, BOOST_IOS::openmode which)
|
||||
{
|
||||
return seek_impl(position_to_offset(sp), BOOST_IOS::beg, which);
|
||||
}
|
||||
|
||||
template<typename T, typename Tr, typename Alloc, typename Mode>
|
||||
typename indirect_streambuf<T, Tr, Alloc, Mode>::pos_type
|
||||
indirect_streambuf<T, Tr, Alloc, Mode>::seek_impl
|
||||
(stream_offset off, BOOST_IOS::seekdir way, BOOST_IOS::openmode which)
|
||||
{
|
||||
if ( gptr() != 0 && way == BOOST_IOS::cur && which == BOOST_IOS::in &&
|
||||
eback() - gptr() <= off && off <= egptr() - gptr() )
|
||||
{ // Small seek optimization
|
||||
gbump(static_cast<int>(off));
|
||||
return obj().seek(stream_offset(0), BOOST_IOS::cur, BOOST_IOS::in, next_) -
|
||||
static_cast<off_type>(egptr() - gptr());
|
||||
}
|
||||
if (pptr() != 0)
|
||||
this->BOOST_IOSTREAMS_PUBSYNC(); // sync() confuses VisualAge 6.
|
||||
if (way == BOOST_IOS::cur && gptr())
|
||||
off -= static_cast<off_type>(egptr() - gptr());
|
||||
bool two_head = is_convertible<category, dual_seekable>::value ||
|
||||
is_convertible<category, bidirectional_seekable>::value;
|
||||
if (two_head) {
|
||||
BOOST_IOS::openmode both = BOOST_IOS::in | BOOST_IOS::out;
|
||||
if ((which & both) == both)
|
||||
boost::throw_exception(bad_seek());
|
||||
if (which & BOOST_IOS::in) {
|
||||
setg(0, 0, 0);
|
||||
}
|
||||
if (which & BOOST_IOS::out) {
|
||||
setp(0, 0);
|
||||
}
|
||||
}
|
||||
else {
|
||||
setg(0, 0, 0);
|
||||
setp(0, 0);
|
||||
}
|
||||
return obj().seek(off, way, which, next_);
|
||||
}
|
||||
|
||||
template<typename T, typename Tr, typename Alloc, typename Mode>
|
||||
inline void indirect_streambuf<T, Tr, Alloc, Mode>::set_next
|
||||
(streambuf_type* next)
|
||||
{ next_ = next; }
|
||||
|
||||
template<typename T, typename Tr, typename Alloc, typename Mode>
|
||||
inline void indirect_streambuf<T, Tr, Alloc, Mode>::close_impl
|
||||
(BOOST_IOS::openmode which)
|
||||
{
|
||||
if (which == BOOST_IOS::in && is_convertible<Mode, input>::value) {
|
||||
setg(0, 0, 0);
|
||||
}
|
||||
if (which == BOOST_IOS::out && is_convertible<Mode, output>::value) {
|
||||
sync();
|
||||
setp(0, 0);
|
||||
}
|
||||
if ( !is_convertible<category, dual_use>::value ||
|
||||
is_convertible<Mode, input>::value == (which == BOOST_IOS::in) )
|
||||
{
|
||||
obj().close(which, next_);
|
||||
}
|
||||
}
|
||||
|
||||
//----------State changing functions------------------------------------------//
|
||||
|
||||
template<typename T, typename Tr, typename Alloc, typename Mode>
|
||||
void indirect_streambuf<T, Tr, Alloc, Mode>::sync_impl()
|
||||
{
|
||||
std::streamsize avail, amt;
|
||||
if ((avail = static_cast<std::streamsize>(pptr() - pbase())) > 0) {
|
||||
if ((amt = obj().write(pbase(), avail, next())) == avail)
|
||||
setp(out().begin(), out().end());
|
||||
else {
|
||||
const char_type* ptr = pptr();
|
||||
setp(out().begin() + amt, out().end());
|
||||
pbump(static_cast<int>(ptr - pptr()));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
template<typename T, typename Tr, typename Alloc, typename Mode>
|
||||
void indirect_streambuf<T, Tr, Alloc, Mode>::init_get_area()
|
||||
{
|
||||
if (shared_buffer() && pptr() != 0) {
|
||||
sync_impl();
|
||||
setp(0, 0);
|
||||
}
|
||||
setg(in().begin(), in().begin(), in().begin());
|
||||
}
|
||||
|
||||
template<typename T, typename Tr, typename Alloc, typename Mode>
|
||||
void indirect_streambuf<T, Tr, Alloc, Mode>::init_put_area()
|
||||
{
|
||||
using namespace std;
|
||||
if (shared_buffer() && gptr() != 0) {
|
||||
obj().seek(static_cast<off_type>(gptr() - egptr()), BOOST_IOS::cur, BOOST_IOS::in, next_);
|
||||
setg(0, 0, 0);
|
||||
}
|
||||
if (output_buffered())
|
||||
setp(out().begin(), out().end());
|
||||
else
|
||||
setp(0, 0);
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------------------//
|
||||
|
||||
} } } // End namespaces detail, iostreams, boost.
|
||||
|
||||
#include <boost/iostreams/detail/config/enable_warnings.hpp> // MSVC, BCC 5.x
|
||||
|
||||
#endif // #ifndef BOOST_IOSTREAMS_DETAIL_INDIRECT_STREAMBUF_HPP_INCLUDED
|
||||
+114
@@ -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 BOOST_IOSTREAMS_DETAIL_LINKED_STREAMBUF_HPP_INCLUDED
|
||||
#define BOOST_IOSTREAMS_DETAIL_LINKED_STREAMBUF_HPP_INCLUDED
|
||||
|
||||
#if defined(_MSC_VER)
|
||||
# pragma once
|
||||
#endif
|
||||
|
||||
#include <typeinfo>
|
||||
#include <boost/config.hpp> // member template friends.
|
||||
#include <boost/iostreams/detail/char_traits.hpp>
|
||||
#include <boost/iostreams/detail/ios.hpp> // openmode.
|
||||
#include <boost/iostreams/detail/streambuf.hpp>
|
||||
|
||||
// Must come last.
|
||||
#include <boost/iostreams/detail/config/disable_warnings.hpp> // MSVC.
|
||||
|
||||
namespace boost { 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 BOOST_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 = BOOST_IOSTREAMS_CHAR_TRAITS(Ch) >
|
||||
class linked_streambuf : public BOOST_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 BOOST_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 BOOST_IOSTREAMS_BASIC_STREAMBUF(Ch, Tr) base;
|
||||
BOOST_IOSTREAMS_USING_PROTECTED_STREAMBUF_MEMBERS(base)
|
||||
#endif
|
||||
void close(BOOST_IOS::openmode which)
|
||||
{
|
||||
if ( which == BOOST_IOS::in &&
|
||||
(flags_ & f_input_closed) == 0 )
|
||||
{
|
||||
flags_ |= f_input_closed;
|
||||
close_impl(which);
|
||||
}
|
||||
if ( which == BOOST_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(BOOST_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 BOOST_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 <boost/iostreams/detail/config/enable_warnings.hpp> // MSVC.
|
||||
|
||||
#endif // #ifndef BOOST_IOSTREAMS_DETAIL_LINKED_STREAMBUF_HPP_INCLUDED
|
||||
Reference in New Issue
Block a user