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#pragma once
#include "interfaces/mount_point_state_machine.hpp"
#include "state/initial_state.hpp"
#include "utils.hpp"
#include <boost/asio/steady_timer.hpp>
#include <functional>
#include <memory>
#include <sdbusplus/asio/object_server.hpp>
#include <system_error>
struct MountPointStateMachine : public interfaces::MountPointStateMachine
{
MountPointStateMachine(boost::asio::io_context& ioc,
DeviceMonitor& devMonitor, const std::string& name,
const Configuration::MountPoint& config) :
ioc{ioc},
name{name}, config{config}
{
devMonitor.addDevice(config.nbdDevice);
}
MountPointStateMachine& operator=(MountPointStateMachine&&) = delete;
std::string_view getName() const override
{
return name;
}
Configuration::MountPoint& getConfig() override
{
return config;
}
std::optional<Target>& getTarget() override
{
return target;
}
BasicState& getState() override
{
return *state;
}
int& getExitCode() override
{
return exitCode;
}
boost::asio::io_context& getIoc() override
{
return ioc;
}
void changeState(std::unique_ptr<BasicState> newState)
{
state = std::move(newState);
LogMsg(Logger::Info, name, " state changed to ", state->getStateName());
if ((newState = state->onEnter()))
{
changeState(std::move(newState));
}
}
template <class EventT>
void emitEvent(EventT&& event)
{
LogMsg(Logger::Info, name, " received ", event.eventName, " while in ",
state->getStateName());
if (auto newState = state->handleEvent(std::move(event)))
{
changeState(std::move(newState));
}
}
void emitRegisterDBusEvent(
std::shared_ptr<sdbusplus::asio::connection> bus,
std::shared_ptr<sdbusplus::asio::object_server> objServer) override
{
emitEvent(RegisterDbusEvent(bus, objServer));
}
void emitMountEvent(std::optional<Target> newTarget) override
{
emitEvent(MountEvent(std::move(newTarget)));
}
void emitUnmountEvent() override
{
emitEvent(UnmountEvent());
}
void emitSubprocessStoppedEvent() override
{
emitEvent(SubprocessStoppedEvent());
}
void emitUdevStateChangeEvent(const NBDDevice& dev,
StateChange devState) override
{
if (config.nbdDevice == dev)
{
emitEvent(UdevStateChangeEvent(devState));
}
else
{
LogMsg(Logger::Debug, name, " Ignoring request.");
}
}
virtual void
notificationInitialize(std::shared_ptr<sdbusplus::asio::connection> con,
const std::string& svc, const std::string& iface,
const std::string& name) override
{
auto signal = std::make_unique<utils::SignalSender>(std::move(con), svc,
iface, name);
auto timer = std::make_unique<boost::asio::steady_timer>(ioc);
completionNotification = std::make_unique<utils::NotificationWrapper>(
std::move(signal), std::move(timer));
}
void notificationStart()
{
auto notificationHandler = [this](const boost::system::error_code& ec) {
if (ec == boost::system::errc::operation_canceled)
{
return;
}
LogMsg(Logger::Error,
"[App] timedout when waiting for target state");
completionNotification->notify(
std::make_error_code(std::errc::device_or_resource_busy));
};
LogMsg(Logger::Debug, "Started notification");
completionNotification->start(
std::move(notificationHandler),
std::chrono::seconds(
config.timeout.value_or(
Configuration::MountPoint::defaultTimeout) +
5));
}
virtual void notify(const std::error_code& ec = {}) override
{
completionNotification->notify(ec);
}
boost::asio::io_context& ioc;
std::string name;
Configuration::MountPoint config;
std::unique_ptr<utils::NotificationWrapper> completionNotification;
std::optional<Target> target;
std::unique_ptr<BasicState> state = std::make_unique<InitialState>(*this);
int exitCode = -1;
};
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