C++ (Cpp) string_view::data示例

示例#1

文件： http_server_fast.cpp 项目： miguelportilla/Beast

    void send_file(boost::beast::string_view target)
    {
        // Request path must be absolute and not contain "..".
        if (target.empty() || target[0] != '/' || target.find("..") != std::string::npos)
        {
            send_bad_response(
                http::status::not_found,
                "File not found\r\n");
            return;
        }

        std::string full_path = doc_root_;
        full_path.append(
            target.data(),
            target.size());

        http::file_body::value_type file;
        boost::beast::error_code ec;
        file.open(
            full_path.c_str(),
            boost::beast::file_mode::read,
            ec);
        if(ec)
        {
            send_bad_response(
                http::status::not_found,
                "File not found\r\n");
            return;
        }

        file_response_.emplace(
            std::piecewise_construct,
            std::make_tuple(),
            std::make_tuple(alloc_));

        file_response_->result(http::status::ok);
        file_response_->keep_alive(false);
        file_response_->set(http::field::server, "Beast");
        file_response_->set(http::field::content_type, mime_type(target.to_string()));
        file_response_->body() = std::move(file);
        file_response_->prepare_payload();

        file_serializer_.emplace(*file_response_);

        http::async_write(
            socket_,
            *file_serializer_,
            [this](boost::beast::error_code ec, std::size_t)
            {
                socket_.shutdown(tcp::socket::shutdown_send, ec);
                file_serializer_.reset();
                file_response_.reset();
                accept();
            });
    }

示例#2

文件： http_server_sync_ssl.cpp 项目： miguelportilla/Beast

// Append an HTTP rel-path to a local filesystem path.
// The returned path is normalized for the platform.
std::string
path_cat(
    boost::beast::string_view base,
    boost::beast::string_view path)
{
    if(base.empty())
        return path.to_string();
    std::string result = base.to_string();
#if BOOST_MSVC
    char constexpr path_separator = '\\';
    if(result.back() == path_separator)
        result.resize(result.size() - 1);
    result.append(path.data(), path.size());
    for(auto& c : result)
        if(c == '/')
            c = path_separator;
#else
    char constexpr path_separator = '/';
    if(result.back() == path_separator)
        result.resize(result.size() - 1);
    result.append(path.data(), path.size());
#endif
    return result;
}

示例#3

文件： Writer.cpp 项目： Empresaria/rippled

    void stringOutput (boost::beast::string_view const& bytes)
    {
        markStarted ();
        std::size_t position = 0, writtenUntil = 0;

        output_ ({&quote, 1});
        auto data = bytes.data();
        for (; position < bytes.size(); ++position)
        {
            auto i = jsonSpecialCharacterEscape.find (data[position]);
            if (i != jsonSpecialCharacterEscape.end ())
            {
                if (writtenUntil < position)
                {
                    output_ ({data + writtenUntil, position - writtenUntil});
                }
                output_ ({i->second, jsonEscapeLength});
                writtenUntil = position + 1;
            };
        }
        if (writtenUntil < position)
            output_ ({data + writtenUntil, position - writtenUntil});
        output_ ({&quote, 1});
    }