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ccc7b5c9e9
loop->call(...) is similar to the old logic->Call(...), but is smart about the current thread: if called from within the event loop it simply runs the argument directly, otherwise it queues it. Similarly most of the other event loop calls are also now thread-aware: for example, `call_later(...)` can queue the job directly when called if in the event loop rather than having to double-queue through the even loop (once to call, then inside the call to initiate the time).
60 lines
1.2 KiB
C++
60 lines
1.2 KiB
C++
#pragma once
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#include <unbound.h>
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#include <mutex>
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#include <atomic>
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#include <memory>
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#include <queue>
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#include <ev/ev.hpp>
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#include <dns/message.hpp>
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#ifdef _WIN32
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#include <thread>
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#endif
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namespace llarp::dns
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{
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using ReplyFunction =
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std::function<void(const SockAddr& resolver, const SockAddr& source, OwnedBuffer buf)>;
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using FailFunction =
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std::function<void(const SockAddr& resolver, const SockAddr& source, Message msg)>;
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class UnboundResolver : public std::enable_shared_from_this<UnboundResolver>
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{
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private:
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ub_ctx* unboundContext;
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std::atomic<bool> started;
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std::unique_ptr<std::thread> runner;
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ReplyFunction replyFunc;
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FailFunction failFunc;
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void
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Reset();
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public:
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UnboundResolver(EventLoop_ptr loop, ReplyFunction replyFunc, FailFunction failFunc);
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static void
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Callback(void* data, int err, ub_result* result);
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// stop resolver thread
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void
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Stop();
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// upstream resolver IP can be IPv4 or IPv6
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bool
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Init();
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bool
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AddUpstreamResolver(const std::string& upstreamResolverIP);
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void
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Lookup(SockAddr to, SockAddr from, Message msg);
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};
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} // namespace llarp::dns
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