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90 lines
2.0 KiB
C++
90 lines
2.0 KiB
C++
#ifndef LLARP_SERVICE_LOOKUP_HPP
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#define LLARP_SERVICE_LOOKUP_HPP
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#include <routing/message.hpp>
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#include <service/intro_set.hpp>
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#include <path/pathset.hpp>
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#include <set>
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namespace llarp
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{
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// forward declare
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namespace path
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{
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struct Path;
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}
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namespace service
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{
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struct ILookupHolder;
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constexpr size_t MaxConcurrentLookups = size_t(4);
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struct IServiceLookup
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{
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IServiceLookup() = delete;
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virtual ~IServiceLookup()
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{
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}
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/// handle lookup result
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virtual bool
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HandleResponse(__attribute__((unused))
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const std::set< IntroSet >& results)
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{
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return false;
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}
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/// determine if this request has timed out
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bool
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IsTimedOut(llarp_time_t now, llarp_time_t timeout = 60000) const
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{
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if(now <= m_created)
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return false;
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return now - m_created > timeout;
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}
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/// build request message for service lookup
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virtual std::shared_ptr< routing::IMessage >
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BuildRequestMessage() = 0;
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/// build a new request message and send it via a path
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bool
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SendRequestViaPath(path::Path_ptr p, AbstractRouter* r);
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ILookupHolder* parent;
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uint64_t txid;
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const std::string name;
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RouterID endpoint;
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util::StatusObject
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ExtractStatus() const
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{
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auto now = time_now_ms();
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util::StatusObject obj{{"txid", txid},
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{"endpoint", endpoint.ToHex()},
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{"name", name},
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{"timedOut", IsTimedOut(now)},
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{"createdAt", m_created}};
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return obj;
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}
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protected:
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IServiceLookup(ILookupHolder* parent, uint64_t tx,
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const std::string& name);
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llarp_time_t m_created;
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};
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struct ILookupHolder
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{
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virtual void
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PutLookup(IServiceLookup* l, uint64_t txid) = 0;
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};
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} // namespace service
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} // namespace llarp
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#endif
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