git / moonbite-core / src/support/events.h · raw

// Copyright (c) 2016-2018 The Bitcoin Core developers// Distributed under the MIT software license, see the accompanying// file COPYING or http://www.opensource.org/licenses/mit-license.php.#ifndef BITCOIN_SUPPORT_EVENTS_H#define BITCOIN_SUPPORT_EVENTS_H#include <ios>#include <memory>#include <event2/event.h>#include <event2/http.h>#define MAKE_RAII(type) \/* deleter */\struct type##_deleter {\    void operator()(struct type* ob) {\        type##_free(ob);\    }\};\/* unique ptr typedef */\typedef std::unique_ptr<struct type, type##_deleter> raii_##typeMAKE_RAII(event_base);MAKE_RAII(event);MAKE_RAII(evhttp);MAKE_RAII(evhttp_request);MAKE_RAII(evhttp_connection);inline raii_event_base obtain_event_base() {    auto result = raii_event_base(event_base_new());    if (!result.get())        throw std::runtime_error("cannot create event_base");    return result;}inline raii_event obtain_event(struct event_base* base, evutil_socket_t s, short events, event_callback_fn cb, void* arg) {    return raii_event(event_new(base, s, events, cb, arg));}inline raii_evhttp obtain_evhttp(struct event_base* base) {    return raii_evhttp(evhttp_new(base));}inline raii_evhttp_request obtain_evhttp_request(void(*cb)(struct evhttp_request *, void *), void *arg) {    return raii_evhttp_request(evhttp_request_new(cb, arg));}inline raii_evhttp_connection obtain_evhttp_connection_base(struct event_base* base, std::string host, uint16_t port) {    auto result = raii_evhttp_connection(evhttp_connection_base_new(base, nullptr, host.c_str(), port));    if (!result.get())        throw std::runtime_error("create connection failed");    return result;}#endif // BITCOIN_SUPPORT_EVENTS_H