64 lines
1.3 KiB
C++
64 lines
1.3 KiB
C++
#ifndef __ETCD_KEEPALIVE_HPP__
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#define __ETCD_KEEPALIVE_HPP__
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#include <string>
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#include "etcd/Client.hpp"
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#include "etcd/Response.hpp"
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#include <boost/asio/io_context.hpp>
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#include <boost/asio/steady_timer.hpp>
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#include <grpc++/grpc++.h>
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#include "proto/rpc.grpc.pb.h"
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namespace etcdv3 {
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class AsyncLeaseKeepAliveAction;
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}
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using etcdserverpb::KV;
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using etcdserverpb::Lease;
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using grpc::Channel;
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namespace etcd
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{
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/**
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* If ID is set to 0, etcd will choose an ID.
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*/
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class KeepAlive
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{
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public:
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KeepAlive(Client const &client, int ttl, int64_t lease_id=0);
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KeepAlive(std::string const & address, int ttl, int64_t lease_id=0);
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KeepAlive(std::string const & address,
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std::string const & username, std::string const & password,
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int ttl, int64_t lease_id=0);
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KeepAlive(KeepAlive const &) = delete;
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KeepAlive(KeepAlive &&) = delete;
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/**
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* Stop the keep alive action.
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*/
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void Cancel();
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~KeepAlive();
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protected:
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void refresh();
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pplx::task<void> currentTask;
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std::unique_ptr<Lease::Stub> leaseServiceStub;
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std::unique_ptr<etcdv3::AsyncLeaseKeepAliveAction> call;
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private:
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int ttl;
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int64_t lease_id;
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bool continue_next;
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boost::asio::io_context context;
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std::unique_ptr<boost::asio::steady_timer> keepalive_timer_;
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};
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}
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#endif
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