libcarla/include/system/boost/process/detail/windows/env_init.hpp

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2024-10-18 13:19:59 +08:00
// 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_ENV_INIT_HPP_
#define BOOST_PROCESS_DETAIL_WINDOWS_ENV_INIT_HPP_
#include <boost/winapi/error_codes.hpp>
#include <boost/winapi/process.hpp>
#include <boost/process/detail/config.hpp>
#include <boost/process/detail/handler_base.hpp>
#include <boost/process/environment.hpp>
namespace boost { namespace process { namespace detail { namespace windows {
template<typename Char>
struct env_init : public ::boost::process::detail::handler_base
{
boost::process::basic_environment<Char> env;
env_init(boost::process::basic_environment<Char> && env) : env(std::move(env)) {};
env_init(const boost::process::basic_environment<Char> & env) : env(env) {};
constexpr static ::boost::winapi::DWORD_ creation_flag(char) {return 0u;}
constexpr static ::boost::winapi::DWORD_ creation_flag(wchar_t)
{
return ::boost::winapi::CREATE_UNICODE_ENVIRONMENT_;
}
template <class WindowsExecutor>
void on_setup(WindowsExecutor &exec) const
{
auto e = env.native_handle();
if (*e == null_char<char>())
{
exec.set_error(std::error_code(::boost::winapi::ERROR_BAD_ENVIRONMENT_, std::system_category()),
"Empty Environment");
}
exec.env = e;
exec.creation_flags |= creation_flag(Char());
}
};
}}}}
#endif /* BOOST_PROCESS_DETAIL_WINDOWS_ENV_INIT_HPP_ */