51 lines
1.6 KiB
C++
51 lines
1.6 KiB
C++
//
|
|
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2019
|
|
//
|
|
// Distributed under the Boost Software License, Version 1.0. (See accompanying
|
|
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
|
|
//
|
|
#include "td/net/GetHostByNameActor.h"
|
|
|
|
#include "td/utils/logging.h"
|
|
#include "td/utils/Time.h"
|
|
|
|
namespace td {
|
|
|
|
GetHostByNameActor::GetHostByNameActor(int32 ok_timeout, int32 error_timeout)
|
|
: ok_timeout_(ok_timeout), error_timeout_(error_timeout) {
|
|
}
|
|
|
|
void GetHostByNameActor::run(std::string host, int port, bool prefer_ipv6, td::Promise<td::IPAddress> promise) {
|
|
auto r_ip = load_ip(std::move(host), port, prefer_ipv6);
|
|
promise.set_result(std::move(r_ip));
|
|
}
|
|
|
|
Result<td::IPAddress> GetHostByNameActor::load_ip(string host, int port, bool prefer_ipv6) {
|
|
auto &value = cache_[prefer_ipv6].emplace(host, Value{{}, 0}).first->second;
|
|
auto begin_time = td::Time::now();
|
|
if (value.expire_at > begin_time) {
|
|
auto ip = value.ip.clone();
|
|
if (ip.is_ok()) {
|
|
ip.ok_ref().set_port(port);
|
|
CHECK(ip.ok().get_port() == port);
|
|
}
|
|
return ip;
|
|
}
|
|
|
|
td::IPAddress ip;
|
|
auto status = ip.init_host_port(host, port, prefer_ipv6);
|
|
auto end_time = td::Time::now();
|
|
LOG(WARNING) << "Init host = " << host << ", port = " << port << " in " << end_time - begin_time << " seconds to "
|
|
<< ip;
|
|
|
|
if (status.is_ok()) {
|
|
value = Value{ip, end_time + ok_timeout_};
|
|
return ip;
|
|
} else {
|
|
value = Value{status.clone(), end_time + error_timeout_};
|
|
return std::move(status);
|
|
}
|
|
}
|
|
|
|
} // namespace td
|