HealthChecker.h

/*
 * Copyright (c) 2026 Pavel Vainerman.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, version 2.1.
 */
// -------------------------------------------------------------------------
#ifndef HealthChecker_H_
#define HealthChecker_H_
// -------------------------------------------------------------------------
#include <memory>
#include <string>
#include <atomic>
#include <Poco/Process.h>
#include "ProcessInfo.h"
#include "Configuration.h"
#include "UInterface.h"
// -------------------------------------------------------------------------
namespace uniset
{
    class HealthChecker
    {
        public:
            explicit HealthChecker(std::shared_ptr<Configuration> conf = nullptr);
 
            bool waitForReady(const ReadyCheck& check, size_t timeout_msec);
 
            bool waitForReady(const ReadyCheck& check, size_t timeout_msec,
                              const std::atomic<bool>& cancelFlag);
 
            bool checkOnce(const ReadyCheck& check);
 
            static bool isProcessAlive(Poco::Process::PID pid);
 
            static ReadyCheck parseReadyCheck(const std::string& checkStr);
 
        private:
            bool checkTCP(const std::string& hostPort, size_t timeout_msec);
            bool checkCORBA(const std::string& objectName, size_t timeout_msec, size_t pause_msec);
            bool checkCORBA(const std::string& objectName, size_t timeout_msec, size_t pause_msec,
                            const std::atomic<bool>& cancelFlag);
            bool checkHTTP(const std::string& url, size_t timeout_msec);
            bool checkFile(const std::string& path);
 
            std::shared_ptr<Configuration> conf_;
            std::shared_ptr<UInterface> ui_;
    };
 
} // end of namespace uniset
// -------------------------------------------------------------------------
#endif // HealthChecker_H_
// -------------------------------------------------------------------------