/*
This file is part of libhttpserver
Copyright (C) 2011-2019 Sebastiano Merlino
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
USA
*/
#if !defined (_HTTPSERVER_HPP_INSIDE_) && !defined (HTTPSERVER_COMPILATION)
#error "Only or can be included directly."
#endif
#ifndef _DEFERRED_RESPONSE_HPP_
#define _DEFERRED_RESPONSE_HPP_
#include
#include "httpserver/string_response.hpp"
namespace httpserver
{
namespace details
{
MHD_Response* get_raw_response_helper(void* cls, ssize_t (*cb)(void*, uint64_t, char*, size_t));
}
template
class deferred_response : public string_response
{
public:
explicit deferred_response(
ssize_t(*cycle_callback)(std::shared_ptr, char*, size_t),
std::shared_ptr closure_data,
const std::string& content = "",
int response_code = http::http_utils::http_ok,
const std::string& content_type = http::http_utils::text_plain
):
string_response(content, response_code, content_type),
cycle_callback(cycle_callback),
closure_data(closure_data)
{
}
deferred_response(const deferred_response& other):
string_response(other),
cycle_callback(other.cycle_callback),
closure_data(other.closure_data)
{
}
deferred_response(deferred_response&& other) noexcept:
string_response(std::move(other)),
cycle_callback(std::move(other.cycle_callback)),
closure_data(std::move(other.closure_data))
{
}
deferred_response& operator=(const deferred_response& b)
{
if (this == &b) return *this;
(string_response&) (*this) = b;
this->cycle_callback = b.cycle_callback;
this->closure_data = b.closure_data;
return *this;
}
deferred_response& operator=(deferred_response&& b)
{
if (this == &b) return *this;
(string_response&) (*this) = std::move(b);
this->cycle_callback = std::move(b.cycle_callback);
this->closure_data = std::move(b.closure_data);
return *this;
}
~deferred_response()
{
}
MHD_Response* get_raw_response()
{
return details::get_raw_response_helper((void*) this, &(this->cb));
}
private:
ssize_t (*cycle_callback)(std::shared_ptr, char*, size_t);
std::shared_ptr closure_data;
static ssize_t cb(void* cls, uint64_t pos, char* buf, size_t max)
{
deferred_response* dfr = static_cast*>(cls);
return dfr->cycle_callback(dfr->closure_data, buf, max);
}
};
}
#endif // _DEFERRED_RESPONSE_HPP_