set_cmd_line.hpp

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// Copyright (c) 2006, 2007 Julio M. Merino Vidal
// Copyright (c) 2008 Ilya Sokolov, Boris Schaeling
// Copyright (c) 2009 Boris Schaeling
// Copyright (c) 2010 Felipe Tanus, Boris Schaeling
// Copyright (c) 2011, 2012 Jeff Flinn, Boris Schaeling
//
// 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)
 
#pragma once
 
#include <boost/process/windows/initializers/initializer_base.hpp>
#include <boost/range/algorithm/copy.hpp>
#include <boost/shared_array.hpp>
#include <memory>
 
namespace boost::process::windows::initializers
{
 
    template <class String>
    class set_cmd_line_ : public initializer_base
    {
    private:
        using Char = typename String::value_type;
 
    public:
        explicit set_cmd_line_(const String& s)
            : cmd_line_(new Char[s.size() + 1])
        {
            boost::copy(s, cmd_line_.get());
            cmd_line_[s.size()] = 0;
        }
 
        template <class WindowsExecutor>
        void on_CreateProcess_setup(WindowsExecutor& e) const
        {
            e.cmd_line = cmd_line_.get();
        }
 
    private:
        boost::shared_array<Char> cmd_line_;
    };
 
#if defined(_UNICODE) || defined(UNICODE)
    inline set_cmd_line_<std::wstring> set_cmd_line(const wchar_t* ws)
    {
        return set_cmd_line_<std::wstring>(ws);
    }
 
    inline set_cmd_line_<std::wstring> set_cmd_line(const std::wstring& ws)
    {
        return set_cmd_line_<std::wstring>(ws);
    }
#else
    inline set_cmd_line_<std::string> set_cmd_line(const char* s)
    {
        return set_cmd_line_<std::string>(s);
    }
 
    inline set_cmd_line_<std::string> set_cmd_line(const std::string& s)
    {
        return set_cmd_line_<std::string>(s);
    }
#endif
 
}