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/*
* Copyright 2008-2018 Max Kellermann <max.kellermann@gmail.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef CURL_HANDLER_HXX
#define CURL_HANDLER_HXX
#include "util/ConstBuffer.hxx"
#include <exception>
#include <string>
#include <map>
/**
* Asynchronous response handler for a #CurlRequest.
*
* Its methods must be thread-safe.
*/
class CurlResponseHandler {
public:
/**
* Status line and headers have been received.
*/
virtual void OnHeaders(unsigned status,
std::multimap<std::string, std::string> &&headers) = 0;
/**
* Response body data has been received.
*/
virtual void OnData(ConstBuffer<void> data) = 0;
/**
* The response has ended. The method is allowed delete the
* #CurlRequest here.
*/
virtual void OnEnd() = 0;
/**
* An error has occurred. The method is allowed delete the
* #CurlRequest here.
*/
virtual void OnError(std::exception_ptr e) noexcept = 0;
};
#endif
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