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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include "named_service.h"
#include "monitor.h"
#include <vespa/fnet/frt/invoker.h>
namespace slobrok {
//-----------------------------------------------------------------------------
class IRpcServerManager;
/**
* @class ManagedRpcServer
* @brief A NamedService that is managed by this location broker
*
* This class contains the logic to monitor the connection to a
* NamedService and also to do a healthCheck using the RPC method
* slobrok.checkRpcServer on the connection, notifying its
* manager using callbacks in the IRpcServerManager interface.
**/
class ManagedRpcServer: public NamedService,
public FRT_IRequestWait,
public FNET_Task,
public IMonitoredServer
{
public:
ManagedRpcServer(const ManagedRpcServer&) = delete;
ManagedRpcServer& operator=(const ManagedRpcServer&) = delete;
ManagedRpcServer(const std::string & name, const std::string & spec, IRpcServerManager &manager);
~ManagedRpcServer();
void healthCheck();
void PerformTask() override;
private:
IRpcServerManager &_mmanager;
Monitor _monitor;
FRT_Target *_monitoredServer;
FRT_RPCRequest *_checkServerReq;
void cleanupMonitor();
bool validateRpcServer(uint32_t numstrings,
FRT_StringValue *strings);
public:
void RequestDone(FRT_RPCRequest *req) override;
void notifyDisconnected() override; // lost connection to service
};
//-----------------------------------------------------------------------------
} // namespace slobrok
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