lokinet/llarp/dns/unbound_resolver.hpp
Thomas Winget 7caa87862e standardize include format and pragma once
All #ifndef guards on headers have been removed, I think,
in favor of #pragma once

Headers are now included as `#include "filename"` if the included file
resides in the same directory as the file including it, or any
subdirectory therein.  Otherwise they are included as
`#include <project/top/dir/relative/path/filename>`

The above does not include system/os headers.
2021-03-09 19:01:41 -05:00

60 lines
1.2 KiB
C++

#pragma once
#include <unbound.h>
#include <mutex>
#include <atomic>
#include <memory>
#include <queue>
#include <llarp/ev/ev.hpp>
#include "message.hpp"
#ifdef _WIN32
#include <thread>
#endif
namespace llarp::dns
{
using ReplyFunction =
std::function<void(const SockAddr& resolver, const SockAddr& source, OwnedBuffer buf)>;
using FailFunction =
std::function<void(const SockAddr& resolver, const SockAddr& source, Message msg)>;
class UnboundResolver : public std::enable_shared_from_this<UnboundResolver>
{
private:
ub_ctx* unboundContext;
std::atomic<bool> started;
std::unique_ptr<std::thread> runner;
ReplyFunction replyFunc;
FailFunction failFunc;
void
Reset();
public:
UnboundResolver(EventLoop_ptr loop, ReplyFunction replyFunc, FailFunction failFunc);
static void
Callback(void* data, int err, ub_result* result);
// stop resolver thread
void
Stop();
// upstream resolver IP can be IPv4 or IPv6
bool
Init();
bool
AddUpstreamResolver(const std::string& upstreamResolverIP);
void
Lookup(SockAddr to, SockAddr from, Message msg);
};
} // namespace llarp::dns