整理

2026-03-23 20:54:41 +08:00
commit e13b3650e9
4596 changed files with 1015768 additions and 0 deletions
--- a/include/boost/process/v1/detail/windows/file_descriptor.hpp
+++ b/include/boost/process/v1/detail/windows/file_descriptor.hpp
@@ -0,0 +1,122 @@
+// 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_FILE_DESCRIPTOR_HPP_
+#define BOOST_PROCESS_DETAIL_WINDOWS_FILE_DESCRIPTOR_HPP_
+
+#include <boost/winapi/basic_types.hpp>
+#include <boost/winapi/handles.hpp>
+#include <boost/winapi/file_management.hpp>
+#include <string>
+#include <boost/process/v1/filesystem.hpp>
+#include <boost/core/exchange.hpp>
+
+namespace boost { namespace process { BOOST_PROCESS_V1_INLINE namespace v1 { namespace detail { namespace windows {
+
+struct file_descriptor
+{
+    enum mode_t
+    {
+        read  = 1,
+        write = 2,
+        read_write = 3
+    };
+    static ::boost::winapi::DWORD_ desired_access(mode_t mode)
+    {
+        switch(mode)
+        {
+        case read:
+            return ::boost::winapi::GENERIC_READ_;
+        case write:
+            return ::boost::winapi::GENERIC_WRITE_;
+        case read_write:
+            return ::boost::winapi::GENERIC_READ_
+                 | ::boost::winapi::GENERIC_WRITE_;
+        default:
+            return 0u;
+        }
+    }
+
+    file_descriptor() = default;
+    file_descriptor(const boost::process::v1::filesystem::path& p, mode_t mode = read_write)
+        : file_descriptor(p.native(), mode)
+    {
+    }
+
+    file_descriptor(const std::string & path , mode_t mode = read_write)
+#if defined(BOOST_NO_ANSI_APIS)
+        : file_descriptor(::boost::process::v1::detail::convert(path), mode)
+#else
+        : file_descriptor(path.c_str(), mode)
+#endif
+    {}
+    file_descriptor(const std::wstring & path, mode_t mode = read_write)
+        : file_descriptor(path.c_str(), mode) {}
+
+    file_descriptor(const char*    path, mode_t mode = read_write)
+#if defined(BOOST_NO_ANSI_APIS)
+        : file_descriptor(std::string(path), mode)
+#else
+        : _handle(
+                ::boost::winapi::create_file(
+                        path,
+                        desired_access(mode),
+                        ::boost::winapi::FILE_SHARE_READ_ |
+                        ::boost::winapi::FILE_SHARE_WRITE_,
+                        nullptr,
+                        ::boost::winapi::OPEN_ALWAYS_,
+
+                        ::boost::winapi::FILE_ATTRIBUTE_NORMAL_,
+                        nullptr
+                ))
+#endif
+    {
+    }
+    file_descriptor(const wchar_t * path, mode_t mode = read_write)
+        : _handle(
+            ::boost::winapi::create_file(
+                    path,
+                    desired_access(mode),
+                    ::boost::winapi::FILE_SHARE_READ_ |
+                    ::boost::winapi::FILE_SHARE_WRITE_,
+                    nullptr,
+                    ::boost::winapi::OPEN_ALWAYS_,
+
+                    ::boost::winapi::FILE_ATTRIBUTE_NORMAL_,
+                    nullptr
+            ))
+{
+
+}
+    file_descriptor(const file_descriptor & ) = delete;
+    file_descriptor(file_descriptor &&other)
+        : _handle( boost::exchange(other._handle, ::boost::winapi::INVALID_HANDLE_VALUE_) )
+    {
+    }
+
+    file_descriptor& operator=(const file_descriptor & ) = delete;
+    file_descriptor& operator=(file_descriptor &&other)
+    {
+        if (_handle != ::boost::winapi::INVALID_HANDLE_VALUE_)
+            ::boost::winapi::CloseHandle(_handle);
+        _handle = boost::exchange(other._handle, ::boost::winapi::INVALID_HANDLE_VALUE_);
+        return *this;
+    }
+
+    ~file_descriptor()
+    {
+        if (_handle != ::boost::winapi::INVALID_HANDLE_VALUE_)
+            ::boost::winapi::CloseHandle(_handle);
+    }
+
+    ::boost::winapi::HANDLE_ handle() const { return _handle;}
+
+private:
+    ::boost::winapi::HANDLE_ _handle = ::boost::winapi::INVALID_HANDLE_VALUE_;
+};
+
+}}}}}
+
+#endif /* BOOST_PROCESS_DETAIL_WINDOWS_FILE_DESCRIPTOR_HPP_ */