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diff --git a/boost/process/detail/windows/basic_pipe.hpp b/boost/process/detail/windows/basic_pipe.hpp
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+// Copyright (c) 2016 Klemens D. Morgenstern
+//
+// 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)
+
+#ifndef BOOST_PROCESS_DETAIL_WINDOWS_PIPE_HPP
+#define BOOST_PROCESS_DETAIL_WINDOWS_PIPE_HPP
+
+#include <boost/detail/winapi/basic_types.hpp>
+#include <boost/detail/winapi/error_codes.hpp>
+#include <boost/detail/winapi/pipes.hpp>
+#include <boost/detail/winapi/handles.hpp>
+#include <boost/detail/winapi/file_management.hpp>
+#include <boost/detail/winapi/get_last_error.hpp>
+#include <boost/detail/winapi/access_rights.hpp>
+#include <boost/detail/winapi/process.hpp>
+#include <boost/process/detail/windows/compare_handles.hpp>
+#include <system_error>
+#include <string>
+
+
+namespace boost { namespace process { namespace detail { namespace windows {
+
+template<class CharT, class Traits = std::char_traits<CharT>>
+class basic_pipe
+{
+ ::boost::detail::winapi::HANDLE_ _source = ::boost::detail::winapi::INVALID_HANDLE_VALUE_;
+ ::boost::detail::winapi::HANDLE_ _sink = ::boost::detail::winapi::INVALID_HANDLE_VALUE_;
+public:
+ typedef CharT char_type ;
+ typedef Traits traits_type;
+ typedef typename Traits::int_type int_type ;
+ typedef typename Traits::pos_type pos_type ;
+ typedef typename Traits::off_type off_type ;
+ typedef ::boost::detail::winapi::HANDLE_ native_handle_type;
+
+ explicit basic_pipe(::boost::detail::winapi::HANDLE_ source, ::boost::detail::winapi::HANDLE_ sink)
+ : _source(source), _sink(sink) {}
+ inline explicit basic_pipe(const std::string & name);
+ inline basic_pipe(const basic_pipe& p);
+ basic_pipe(basic_pipe&& lhs) : _source(lhs._source), _sink(lhs._sink)
+ {
+ lhs._source = ::boost::detail::winapi::INVALID_HANDLE_VALUE_;
+ lhs._sink = ::boost::detail::winapi::INVALID_HANDLE_VALUE_;
+ }
+ inline basic_pipe& operator=(const basic_pipe& p);
+ inline basic_pipe& operator=(basic_pipe&& lhs);
+ ~basic_pipe()
+ {
+ if (_sink != ::boost::detail::winapi::INVALID_HANDLE_VALUE_)
+ ::boost::detail::winapi::CloseHandle(_sink);
+ if (_source != ::boost::detail::winapi::INVALID_HANDLE_VALUE_)
+ ::boost::detail::winapi::CloseHandle(_source);
+ }
+ native_handle_type native_source() const {return _source;}
+ native_handle_type native_sink () const {return _sink;}
+
+ void assign_source(native_handle_type h) { _source = h;}
+ void assign_sink (native_handle_type h) { _sink = h;}
+
+ basic_pipe()
+ {
+ if (!::boost::detail::winapi::CreatePipe(&_source, &_sink, nullptr, 0))
+ throw_last_error("CreatePipe() failed");
+
+ }
+
+ int_type write(const char_type * data, int_type count)
+ {
+ ::boost::detail::winapi::DWORD_ write_len;
+ if (!::boost::detail::winapi::WriteFile(
+ _sink, data, count * sizeof(char_type), &write_len, nullptr
+ ))
+ {
+ auto ec = ::boost::process::detail::get_last_error();
+ if ((ec.value() == ::boost::detail::winapi::ERROR_BROKEN_PIPE_) ||
+ (ec.value() == ::boost::detail::winapi::ERROR_NO_DATA_))
+ return 0;
+ else
+ throw process_error(ec, "WriteFile failed");
+ }
+ return static_cast<int_type>(write_len);
+ }
+ int_type read(char_type * data, int_type count)
+ {
+ ::boost::detail::winapi::DWORD_ read_len;
+ if (!::boost::detail::winapi::ReadFile(
+ _source, data, count * sizeof(char_type), &read_len, nullptr
+ ))
+ {
+ auto ec = ::boost::process::detail::get_last_error();
+ if ((ec.value() == ::boost::detail::winapi::ERROR_BROKEN_PIPE_) ||
+ (ec.value() == ::boost::detail::winapi::ERROR_NO_DATA_))
+ return 0;
+ else
+ throw process_error(ec, "ReadFile failed");
+ }
+ return static_cast<int_type>(read_len);
+ }
+
+ bool is_open()
+ {
+ return (_source != ::boost::detail::winapi::INVALID_HANDLE_VALUE_) ||
+ (_sink != ::boost::detail::winapi::INVALID_HANDLE_VALUE_);
+ }
+
+ void close()
+ {
+ ::boost::detail::winapi::CloseHandle(_source);
+ ::boost::detail::winapi::CloseHandle(_sink);
+ _source = ::boost::detail::winapi::INVALID_HANDLE_VALUE_;
+ _sink = ::boost::detail::winapi::INVALID_HANDLE_VALUE_;
+ }
+};
+
+template<class Char, class Traits>
+basic_pipe<Char, Traits>::basic_pipe(const basic_pipe & p)
+{
+ auto proc = ::boost::detail::winapi::GetCurrentProcess();
+
+ if (p._source == ::boost::detail::winapi::INVALID_HANDLE_VALUE_)
+ _source = ::boost::detail::winapi::INVALID_HANDLE_VALUE_;
+ else if (!::boost::detail::winapi::DuplicateHandle(
+ proc, p._source, proc, &_source, 0,
+ static_cast<::boost::detail::winapi::BOOL_>(true),
+ ::boost::detail::winapi::DUPLICATE_SAME_ACCESS_))
+ throw_last_error("Duplicate Pipe Failed");
+
+ if (p._sink == ::boost::detail::winapi::INVALID_HANDLE_VALUE_)
+ _sink = ::boost::detail::winapi::INVALID_HANDLE_VALUE_;
+ else if (!::boost::detail::winapi::DuplicateHandle(
+ proc, p._sink, proc, &_sink, 0,
+ static_cast<::boost::detail::winapi::BOOL_>(true),
+ ::boost::detail::winapi::DUPLICATE_SAME_ACCESS_))
+ throw_last_error("Duplicate Pipe Failed");
+
+}
+
+template<class Char, class Traits>
+basic_pipe<Char, Traits>::basic_pipe(const std::string & name)
+{
+ static constexpr int OPEN_EXISTING_ = 3; //temporary.
+ static constexpr int FILE_FLAG_OVERLAPPED_ = 0x40000000; //temporary
+ //static constexpr int FILE_ATTRIBUTE_NORMAL_ = 0x00000080; //temporary
+
+ ::boost::detail::winapi::HANDLE_ source = ::boost::detail::winapi::create_named_pipe(
+ name.c_str(),
+ ::boost::detail::winapi::PIPE_ACCESS_INBOUND_
+ | FILE_FLAG_OVERLAPPED_, //write flag
+ 0, 1, 8192, 8192, 0, nullptr);
+
+ if (source == boost::detail::winapi::INVALID_HANDLE_VALUE_)
+ ::boost::process::detail::throw_last_error("create_named_pipe() failed");
+
+ ::boost::detail::winapi::HANDLE_ sink = boost::detail::winapi::create_file(
+ name.c_str(),
+ ::boost::detail::winapi::GENERIC_WRITE_, 0, nullptr,
+ OPEN_EXISTING_,
+ FILE_FLAG_OVERLAPPED_, //to allow read
+ nullptr);
+
+ if (sink == ::boost::detail::winapi::INVALID_HANDLE_VALUE_)
+ ::boost::process::detail::throw_last_error("create_file() failed");
+
+ _source = source;
+ _sink = sink;
+}
+
+template<class Char, class Traits>
+basic_pipe<Char, Traits>& basic_pipe<Char, Traits>::operator=(const basic_pipe & p)
+{
+ auto proc = ::boost::detail::winapi::GetCurrentProcess();
+
+ if (p._source == ::boost::detail::winapi::INVALID_HANDLE_VALUE_)
+ _source = ::boost::detail::winapi::INVALID_HANDLE_VALUE_;
+ else if (!::boost::detail::winapi::DuplicateHandle(
+ proc, p._source, proc, &_source, 0,
+ static_cast<::boost::detail::winapi::BOOL_>(true),
+ ::boost::detail::winapi::DUPLICATE_SAME_ACCESS_))
+ throw_last_error("Duplicate Pipe Failed");
+
+ if (p._sink == ::boost::detail::winapi::INVALID_HANDLE_VALUE_)
+ _sink = ::boost::detail::winapi::INVALID_HANDLE_VALUE_;
+ else if (!::boost::detail::winapi::DuplicateHandle(
+ proc, p._sink, proc, &_sink, 0,
+ static_cast<::boost::detail::winapi::BOOL_>(true),
+ ::boost::detail::winapi::DUPLICATE_SAME_ACCESS_))
+ throw_last_error("Duplicate Pipe Failed");
+
+ return *this;
+}
+
+template<class Char, class Traits>
+basic_pipe<Char, Traits>& basic_pipe<Char, Traits>::operator=(basic_pipe && lhs)
+{
+ if (_source != ::boost::detail::winapi::INVALID_HANDLE_VALUE_)
+ ::boost::detail::winapi::CloseHandle(_source);
+
+ if (_sink != ::boost::detail::winapi::INVALID_HANDLE_VALUE_)
+ ::boost::detail::winapi::CloseHandle(_sink);
+
+ _source = lhs._source;
+ _sink = lhs._sink;
+ lhs._source = ::boost::detail::winapi::INVALID_HANDLE_VALUE_;
+ lhs._sink = ::boost::detail::winapi::INVALID_HANDLE_VALUE_;
+ return *this;
+}
+
+template<class Char, class Traits>
+inline bool operator==(const basic_pipe<Char, Traits> & lhs, const basic_pipe<Char, Traits> & rhs)
+{
+ return compare_handles(lhs.native_source(), rhs.native_source()) &&
+ compare_handles(lhs.native_sink(), rhs.native_sink());
+}
+
+template<class Char, class Traits>
+inline bool operator!=(const basic_pipe<Char, Traits> & lhs, const basic_pipe<Char, Traits> & rhs)
+{
+ return !compare_handles(lhs.native_source(), rhs.native_source()) ||
+ !compare_handles(lhs.native_sink(), rhs.native_sink());
+}
+
+}}}}
+
+#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-18 12:32:18 +0000