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Diffstat (limited to 'src/lib/curl/Easy.hxx')
-rw-r--r-- | src/lib/curl/Easy.hxx | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/src/lib/curl/Easy.hxx b/src/lib/curl/Easy.hxx new file mode 100644 index 000000000..decb5771f --- /dev/null +++ b/src/lib/curl/Easy.hxx @@ -0,0 +1,91 @@ +/* + * Copyright (C) 2016 Max Kellermann <max@duempel.org> + * + * 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 |