整理

include/boost/process/v2/windows/creation_flags.hpp

@@ -0,0 +1,50 @@
+//
+// boost/process/v2/windows/default_launcher.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2022 Klemens D. Morgenstern (klemens dot morgenstern at gmx dot net)
+//
+// 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_V2_WINDOWS_CREATION_FLAGS_HPP
+#define BOOST_PROCESS_V2_WINDOWS_CREATION_FLAGS_HPP
+
+#include <boost/process/v2/windows/default_launcher.hpp>
+
+BOOST_PROCESS_V2_BEGIN_NAMESPACE
+namespace windows
+{
+
+
+/// An initializer to add to the dwFlags in the startup-info
+/**
+ * @tparam Flags The flags to be set.
+ */
+template<DWORD Flags>
+struct process_creation_flags
+{
+  constexpr process_creation_flags () {}
+  
+  error_code on_setup(windows::default_launcher & launcher,
+                      const filesystem::path &, 
+                      const std::wstring &) const
+  {
+    launcher.creation_flags |= Flags;
+    return error_code {};
+  };
+};
+
+
+
+/// A flag to create a new process group. Necessary to allow interrupts for the subprocess.
+constexpr static process_creation_flags<CREATE_NEW_PROCESS_GROUP> create_new_process_group;
+
+constexpr static process_creation_flags<CREATE_BREAKAWAY_FROM_JOB> create_breakaway_from_job;
+constexpr static process_creation_flags<CREATE_NEW_CONSOLE>        create_new_console;
+
+}
+BOOST_PROCESS_V2_END_NAMESPACE
+
+#endif //  BOOST_PROCESS_V2_WINDOWS_CREATION_FLAGS_HPP