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/*
* Copyright (C) 2016 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_EASY_HXX
#define CURL_EASY_HXX
#include <curl/curl.h>
#include <utility>
#include <stdexcept>
#include <cstddef>
/**
* An OO wrapper for a "CURL*" (a libCURL "easy" handle).
*/
class CurlEasy {
CURL *handle = nullptr;
public:
/**
* Allocate a new CURL*.
*
* Throws std::runtime_error on error.
*/
CurlEasy()
:handle(curl_easy_init())
{
if (handle == nullptr)
throw std::runtime_error("curl_easy_init() failed");
}
/**
* Create an empty instance.
*/
CurlEasy(std::nullptr_t):handle(nullptr) {}
CurlEasy(CurlEasy &&src):handle(std::exchange(src.handle, nullptr)) {}
~CurlEasy() {
if (handle != nullptr)
curl_easy_cleanup(handle);
}
operator bool() const {
return handle != nullptr;
}
CurlEasy &operator=(CurlEasy &&src) {
std::swap(handle, src.handle);
return *this;
}
CURL *Get() {
return handle;
}
template<typename T>
void SetOption(CURLoption option, T value) {
CURLcode code = curl_easy_setopt(handle, option, value);
if (code != CURLE_OK)
throw std::runtime_error(curl_easy_strerror(code));
}
};
#endif
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