diff --git a/src/Makefile.am b/src/Makefile.am index 75ec72af..33c1fba2 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -158,6 +158,7 @@ BITCOIN_CORE_H = \ support/allocators/secure.h \ support/allocators/zeroafterfree.h \ support/cleanse.h \ + support/events.h \ support/pagelocker.h \ sync.h \ threadsafety.h \ diff --git a/src/support/events.h b/src/support/events.h new file mode 100644 index 00000000..16378086 --- /dev/null +++ b/src/support/events.h @@ -0,0 +1,55 @@ +// Copyright (c) 2016 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 + +#include +#include + +#define MAKE_RAII(type) \ +/* deleter */\ +struct type##_deleter {\ + void operator()(struct type* ob) {\ + type##_free(ob);\ + }\ +};\ +/* unique ptr typedef */\ +typedef std::unique_ptr raii_##type + +MAKE_RAII(event_base); +MAKE_RAII(event); +MAKE_RAII(evhttp); +MAKE_RAII(evhttp_request); +MAKE_RAII(evhttp_connection); + +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; +} + +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)); +} + +raii_evhttp obtain_evhttp(struct event_base* base) { + return raii_evhttp(evhttp_new(base)); +} + +raii_evhttp_request obtain_evhttp_request(void(*cb)(struct evhttp_request *, void *), void *arg) { + return raii_evhttp_request(evhttp_request_new(cb, arg)); +} + +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, NULL, host.c_str(), port)); + if (!result.get()) + throw std::runtime_error("create connection failed"); + return result; +} + +#endif // BITCOIN_SUPPORT_EVENTS_H