61 lines
1.6 KiB
C++
61 lines
1.6 KiB
C++
#define CATCH_CONFIG_MAIN
|
|
#include <catch.hpp>
|
|
|
|
#include <future>
|
|
#include <memory>
|
|
|
|
#include "etcd/Client.hpp"
|
|
#include "etcd/KeepAlive.hpp"
|
|
#include "etcd/Watcher.hpp"
|
|
|
|
static const std::string etcd_url =
|
|
etcdv3::detail::resolve_etcd_endpoints("http://127.0.0.1:2379");
|
|
|
|
static std::atomic_int watcher_called;
|
|
|
|
void print_response(etcd::Response const& resp) { watcher_called.fetch_add(1); }
|
|
|
|
/**
|
|
* @brief emulate the behavior of creating watcher many times:
|
|
*
|
|
* 1. create a watcher
|
|
* 2. change a value
|
|
* 3. cancel the watcher
|
|
*/
|
|
void watch_once(etcd::Client& client, std::unique_ptr<etcd::Watcher>& watcher,
|
|
const size_t round) {
|
|
const std::string my_prefix = "/test";
|
|
const std::string my_key = my_prefix + "/foo";
|
|
watcher.reset(new etcd::Watcher(client, my_prefix, print_response, true));
|
|
|
|
int k = watcher_called.load();
|
|
client.set(my_key, "bar-" + std::to_string(round)).wait();
|
|
while (true) {
|
|
if (watcher_called.load() > k) {
|
|
break;
|
|
}
|
|
std::this_thread::sleep_for(std::chrono::milliseconds(1));
|
|
}
|
|
|
|
// cancel the watcher
|
|
watcher->Cancel();
|
|
}
|
|
|
|
TEST_CASE("watch shouldn't leak memory") {
|
|
watcher_called.store(0);
|
|
|
|
// issue some changes to see if the watcher works
|
|
etcd::Client client(etcd_url);
|
|
std::unique_ptr<etcd::Watcher> watcher;
|
|
for (int round = 0;
|
|
round < 10 /* update this value to make it run for longer */; ++round) {
|
|
if (round % 50 == 0) {
|
|
std::cout << "starting round " << round << std::endl;
|
|
}
|
|
watch_once(client, watcher, round);
|
|
}
|
|
|
|
std::cout << "watcher been called for " << watcher_called.load() << " times"
|
|
<< std::endl;
|
|
}
|