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worker_impl.h
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worker_impl.h
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#pragma once
#include <functional>
#include <memory>
#include "envoy/api/api.h"
#include "envoy/network/connection_handler.h"
#include "envoy/server/guarddog.h"
#include "envoy/server/listener_manager.h"
#include "envoy/server/worker.h"
#include "envoy/thread_local/thread_local.h"
#include "common/common/logger.h"
#include "server/listener_hooks.h"
namespace Envoy {
namespace Server {
class ProdWorkerFactory : public WorkerFactory, Logger::Loggable<Logger::Id::main> {
public:
ProdWorkerFactory(ThreadLocal::Instance& tls, Api::Api& api, ListenerHooks& hooks)
: tls_(tls), api_(api), hooks_(hooks) {}
// Server::WorkerFactory
WorkerPtr createWorker(OverloadManager& overload_manager,
const std::string& worker_name) override;
private:
ThreadLocal::Instance& tls_;
Api::Api& api_;
ListenerHooks& hooks_;
};
/**
* A server threaded worker that wraps up a worker thread, event loop, etc.
*/
class WorkerImpl : public Worker, Logger::Loggable<Logger::Id::main> {
public:
WorkerImpl(ThreadLocal::Instance& tls, ListenerHooks& hooks, Event::DispatcherPtr&& dispatcher,
Network::ConnectionHandlerPtr handler, OverloadManager& overload_manager,
Api::Api& api, const std::string& worker_name);
// Server::Worker
void addListener(Network::ListenerConfig& listener, AddListenerCompletion completion) override;
uint64_t numConnections() override;
void removeListener(Network::ListenerConfig& listener, std::function<void()> completion) override;
void start(GuardDog& guard_dog) override;
void initializeStats(Stats::Scope& scope, const std::string& prefix) override;
void stop() override;
void stopListener(Network::ListenerConfig& listener) override;
void stopListeners() override;
private:
void threadRoutine(GuardDog& guard_dog);
void stopAcceptingConnectionsCb(OverloadActionState state);
ThreadLocal::Instance& tls_;
ListenerHooks& hooks_;
Event::DispatcherPtr dispatcher_;
Network::ConnectionHandlerPtr handler_;
Api::Api& api_;
Thread::ThreadPtr thread_;
const std::string worker_name_;
WatchDogSharedPtr watch_dog_;
};
} // namespace Server
} // namespace Envoy