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// Copyright (c) 2016-2022 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include <event2/event.h>
#include <cstdlib>
#include <map>
#include <support/events.h>
#include <test/util/setup_common.h>
#include <boost/test/unit_test.hpp>
BOOST_FIXTURE_TEST_SUITE(raii_event_tests, BasicTestingSetup)
#ifdef EVENT_SET_MEM_FUNCTIONS_IMPLEMENTED
static std::map<void*, short> tags;
static std::map<void*, uint16_t> orders;
static uint16_t tagSequence = 0;
static void* tag_malloc(size_t sz) {
void* mem = malloc(sz);
if (!mem) return mem;
tags[mem]++;
orders[mem] = tagSequence++;
return mem;
}
static void tag_free(void* mem) {
tags[mem]--;
orders[mem] = tagSequence++;
free(mem);
}
BOOST_AUTO_TEST_CASE(raii_event_creation)
{
event_set_mem_functions(tag_malloc, realloc, tag_free);
void* base_ptr = nullptr;
{
auto base = obtain_event_base();
base_ptr = (void*)base.get();
BOOST_CHECK(tags[base_ptr] == 1);
}
BOOST_CHECK(tags[base_ptr] == 0);
void* event_ptr = nullptr;
{
auto base = obtain_event_base();
auto event = obtain_event(base.get(), -1, 0, nullptr, nullptr);
base_ptr = (void*)base.get();
event_ptr = (void*)event.get();
BOOST_CHECK(tags[base_ptr] == 1);
BOOST_CHECK(tags[event_ptr] == 1);
}
BOOST_CHECK(tags[base_ptr] == 0);
BOOST_CHECK(tags[event_ptr] == 0);
event_set_mem_functions(malloc, realloc, free);
}
BOOST_AUTO_TEST_CASE(raii_event_order)
{
event_set_mem_functions(tag_malloc, realloc, tag_free);
void* base_ptr = nullptr;
void* event_ptr = nullptr;
{
auto base = obtain_event_base();
auto event = obtain_event(base.get(), -1, 0, nullptr, nullptr);
base_ptr = (void*)base.get();
event_ptr = (void*)event.get();
// base should have allocated before event
BOOST_CHECK(orders[base_ptr] < orders[event_ptr]);
}
// base should be freed after event
BOOST_CHECK(orders[base_ptr] > orders[event_ptr]);
event_set_mem_functions(malloc, realloc, free);
}
#endif // EVENT_SET_MEM_FUNCTIONS_IMPLEMENTED
BOOST_AUTO_TEST_SUITE_END()
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