HostUtils.h

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#pragma once
#include "catapult/plugins/PluginModule.h"
#include "catapult/utils/ExceptionLogging.h"
#include "catapult/exceptions.h"
#include <memory>
#include <vector>
 
namespace catapult { namespace extensions { class ProcessBootstrapper; } }
 
namespace catapult { namespace local {
 
    template<typename THost, typename... TArgs>
    std::unique_ptr<THost> CreateAndBootHost(TArgs&&... args) {
        // create and boot the host
        auto pHost = std::make_unique<THost>(std::forward<TArgs>(args)...);
        try {
            pHost->boot();
        } catch (const std::exception& ex) {
            // log the exception and rethrow as a new exception in case the exception source is a dynamic plugin
            // (this avoids a potential crash in the calling code, which would occur if the host destructor unloads the source plugin)
            CATAPULT_LOG(fatal) << UNHANDLED_EXCEPTION_MESSAGE("boot");
            CATAPULT_THROW_RUNTIME_ERROR(ex.what());
        }
 
        return std::move(pHost);
    }
 
    std::vector<plugins::PluginModule> LoadAllPlugins(extensions::ProcessBootstrapper& bootstrapper);
}}