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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "frtconfigrequest.h"
#include "frtconfigresponse.h"
#include "frtsource.h"
#include "frtconfigagent.h"
#include "connectionfactory.h"
#include "connection.h"
#include "frtconfigrequestfactory.h"
#include <cassert>
#include <vespa/log/log.h>
LOG_SETUP(".config.frt.frtsource");
namespace config {
class GetConfigTask : public FNET_Task {
public:
GetConfigTask(FNET_Scheduler * scheduler, FRTSource * source)
: FNET_Task(scheduler),
_source(source)
{
}
~GetConfigTask() {
Kill();
}
void PerformTask() override {
_source->getConfig();
}
private:
FRTSource * _source;
};
FRTSource::FRTSource(std::shared_ptr<ConnectionFactory> connectionFactory, const FRTConfigRequestFactory & requestFactory,
std::unique_ptr<ConfigAgent> agent, const ConfigKey & key)
: _connectionFactory(std::move(connectionFactory)),
_requestFactory(requestFactory),
_agent(std::move(agent)),
_currentRequest(),
_key(key),
_lock(),
_task(std::make_unique<GetConfigTask>(_connectionFactory->getScheduler(), this)),
_closed(false)
{
LOG(spam, "New source!");
}
FRTSource::~FRTSource()
{
LOG(spam, "Destructing source");
close();
}
void
FRTSource::getConfig()
{
vespalib::duration serverTimeout = _agent->getTimeout();
vespalib::duration clientTimeout = serverTimeout + 5s; // The additional 5 seconds is the time allowed for the server to respond after serverTimeout has elapsed.
Connection * connection = _connectionFactory->getCurrent();
if (connection == nullptr) {
LOG(warning, "No connection available - bad config ?");
return;
}
const ConfigState & state(_agent->getConfigState());
// LOG(debug, "invoking request with md5 %s, gen %" PRId64 ", servertimeout(%" PRId64 "), client(%f)", state.md5.c_str(), state.generation, serverTimeout, clientTimeout);
std::unique_ptr<FRTConfigRequest> request = _requestFactory.createConfigRequest(_key, connection, state, serverTimeout);
FRT_RPCRequest * req = request->getRequest();
_currentRequest = std::move(request);
connection->invoke(req, clientTimeout, this);
}
void
FRTSource::RequestDone(FRT_RPCRequest * request)
{
if (request->GetErrorCode() == FRTE_RPC_ABORT) {
LOG(debug, "request aborted, stopping");
return;
}
assert(_currentRequest);
// If this was error from FRT side and nothing to do with config, notify
// connection about the error.
if (request->IsError()) {
_currentRequest->setError(request->GetErrorCode());
}
_agent->handleResponse(*_currentRequest, _currentRequest->createResponse(request));
LOG(spam, "Calling schedule");
scheduleNextGetConfig();
}
void
FRTSource::close()
{
{
std::lock_guard guard(_lock);
if (_closed)
return;
LOG(spam, "Killing task");
_task->Kill();
}
LOG(spam, "Aborting");
if (_currentRequest.get() != NULL)
_currentRequest->abort();
LOG(spam, "Syncing");
_connectionFactory->syncTransport();
_currentRequest.reset(0);
LOG(spam, "closed");
}
void
FRTSource::scheduleNextGetConfig()
{
std::lock_guard guard(_lock);
if (_closed)
return;
double sec = vespalib::to_s(_agent->getWaitTime());
LOG(debug, "Scheduling task in %f seconds", sec);
_task->Schedule(sec);
LOG(debug, "Done scheduling task");
}
void
FRTSource::reload(int64_t generation)
{
(void) generation;
}
} // namespace config
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