93 lines
2.6 KiB
C++
93 lines
2.6 KiB
C++
/*
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*
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* Conky, a system monitor, based on torsmo
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*
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* Please see COPYING for details
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*
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* Copyright (c) 2005-2021 Brenden Matthews, Philip Kovacs, et. al.
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* (see AUTHORS)
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* All rights reserved.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef _CURL_THREAD_H_
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#define _CURL_THREAD_H_
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#include <curl/curl.h>
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#include "logging.h"
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#include "update-cb.hh"
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namespace priv {
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// factored out stuff that does not depend on the template parameters
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class curl_internal {
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public:
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std::string last_modified;
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std::string etag;
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std::string data;
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CURL *curl;
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static size_t parse_header_cb(void *ptr, size_t size, size_t nmemb,
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void *data);
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static size_t write_cb(void *ptr, size_t size, size_t nmemb, void *data);
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void do_work();
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// called by do_work() after downloading data from the uri
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// it should populate the result variable
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virtual void process_data() = 0;
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explicit curl_internal(const std::string &url);
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virtual ~curl_internal() {
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if (curl) curl_easy_cleanup(curl);
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}
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};
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} // namespace priv
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/*
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* Curl callback class template
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* the key is an url
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*/
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template <typename Result, typename... Keys>
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class curl_callback : public conky::callback<Result, std::string, Keys...>,
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public priv::curl_internal {
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typedef conky::callback<Result, std::string, Keys...> Base1;
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typedef priv::curl_internal Base2;
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protected:
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virtual void work() {
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DBGP("reading curl data from '%s'", std::get<0>(Base1::tuple).c_str());
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do_work();
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}
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public:
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curl_callback(uint32_t period, const typename Base1::Tuple &tuple)
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: Base1(period, false, tuple), Base2(std::get<0>(tuple)) {}
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};
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/* $curl exports begin */
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/* runs instance of $curl */
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void ccurl_process_info(char *p, int p_max_size, const std::string &uri,
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int interval);
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void curl_parse_arg(struct text_object *, const char *);
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void curl_print(struct text_object *, char *, unsigned int);
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void curl_obj_free(struct text_object *);
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/* $curl exports end */
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#endif /* _CURL_THREAD_H_ */
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