81 lines
3.4 KiB
C++
81 lines
3.4 KiB
C++
// SPDX-License-Identifier: MPL-2.0
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// Copyright © 2020 Skyline Team and Contributors (https://github.com/skyline-emu/)
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#pragma once
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#include <kernel/types/KSession.h>
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#include <nce.h>
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#include "base_service.h"
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namespace skyline::service {
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/**
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* @brief The ServiceManager class manages passing IPC requests to the right Service and running event loops of Services
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*/
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class ServiceManager {
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private:
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const DeviceState &state; //!< The state of the device
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std::unordered_map<Service, std::shared_ptr<BaseService>> serviceMap; //!< A mapping from a Service to the underlying object
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Mutex mutex; //!< This mutex is used to ensure concurrent access to services doesn't cause crashes
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/**
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* @brief Creates an instance of the service if it doesn't already exist, otherwise returns an existing instance
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* @param serviceType The type of service requested
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* @return A shared pointer to an instance of the service
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*/
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std::shared_ptr<BaseService> CreateService(Service serviceType);
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public:
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/**
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* @param state The state of the device
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*/
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ServiceManager(const DeviceState &state);
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/**
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* @brief Creates a new service and returns it's handle
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* @param serviceType The type of the service
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* @return Handle to KService object of the service
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*/
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KHandle NewSession(Service serviceType);
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/**
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* @brief Creates a new service using it's type enum and writes it's handle or virtual handle (If it's a domain request) to IpcResponse
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* @param serviceName The name of the service
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* @param session The session object of the command
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* @param response The response object to write the handle or virtual handle to
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*/
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std::shared_ptr<BaseService> NewService(const std::string &serviceName, type::KSession &session, ipc::IpcResponse &response);
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/**
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* @brief Registers a service object in the manager and writes it's handle or virtual handle (If it's a domain request) to IpcResponse
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* @param serviceObject An instance of the service
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* @param session The session object of the command
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* @param response The response object to write the handle or virtual handle to
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* @param submodule If the registered service is a submodule or not
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*/
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void RegisterService(std::shared_ptr<BaseService> serviceObject, type::KSession &session, ipc::IpcResponse &response, bool submodule = true);
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/**
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* @param serviceType The type of the service
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* @tparam The class of the service
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* @return A shared pointer to an instance of the service
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* @note This only works for services created with `NewService` as sub-interfaces used with `RegisterService` can have multiple instances
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*/
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template<typename Type>
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inline std::shared_ptr<Type> GetService(Service serviceType) {
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return std::static_pointer_cast<Type>(serviceMap.at(serviceType));
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}
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/**
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* @brief Closes an existing session to a service
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* @param service The handle of the KService object
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*/
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void CloseSession(KHandle handle);
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/**
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* @brief Handles a Synchronous IPC Request
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* @param handle The handle of the object
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*/
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void SyncRequestHandler(KHandle handle);
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};
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}
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