Developer Platform Architecture

CUTOS provides comprehensive basic platform support for the construction of intelligent systems at edge sites, edge clouds and private clouds.CUTOS design follows the KISS (Keep It Simple, Stupid!) principle, which is consistent with the design concept of the famous UNIX operating system, that is, "keep it simple and direct." This principle emphasizes the simplicity, ease of use and directness of the design solution.

The main functions of CUTOS include:

1. LWA development: CUTOS provides application development, operation and management based on WEB technology. LWA enables heterogeneous systems to run across platforms.
2. Driver development: CUTOS supports the implementation of smart device applications through driver development. Using JavaScript language to develop drivers can greatly improve development efficiency.
3. App store: Build an industry-specific app store.
4. CUTOS desktop: Take over the underlying operating system desktop, build an industry-specific operating system, and improve system construction and operation and maintenance efficiency.
5. CUTOS Gateway (GW): Connects with the business system through the gateway to support rapid business expansion.
6. Business integration support:

   a) GW IPC realizes cross-domain application business docking

   b) core IPC realizes local application business docking

1. LWA development framework functions

• CUTOS provides rich APIs: These frameworks provide a series of application program interfaces (APIs) that developers can use to access operating system functions and services.
• Provide development tools and environments: These frameworks usually provide a complete set of development tools and environments, such as integrated development environments (IDEs), debugging tools, simulators, etc., allowing developers to write, test and debug applications more conveniently .
• Provide UI framework and controls: CUTOS LWA is developed based on WEB technology and can be developed using any framework, such as vue, react, etc. These frameworks provide a set of user interface (UI) frameworks and controls that enable developers to quickly build an application's user interface. These frameworks usually provide rich UI control libraries, layout managers, etc., allowing developers to design and create user interfaces in a visual way.
• Cross-platform support: CUTOS provides cross-platform support, enabling developers to develop applications for multiple operating systems. These frameworks typically provide a unified set of APIs and tools that enable developers to share code and resources across different operating systems.
• Provide performance optimization and tuning tools: These frameworks usually provide some performance optimization and tuning tools, allowing developers to analyze and optimize application performance and improve application operating efficiency and response speed.

2. Driver development framework

The CUTOS driver development framework is a set of software framework designed to simplify and accelerate the development of operating system drivers. It provides a series of tools, interfaces and functions that make it easier for developers to write, debug and deploy drivers. The CUTOS operating system driver development framework includes:

• Device Abstraction Layer: This is the core part of the driver development framework. It provides a unified interface for accessing and controlling hardware devices. Developers can send and receive data, configure device parameters, and handle device events through this interface.
• Driver Model: This is a framework for managing and organizing drivers. It defines the loading, initialization, and unloading processes of drivers and provides a set of specifications for describing dependencies and communication mechanisms between drivers. The driver model makes it easier for developers to write and maintain complex driver systems.
• Driver Interface: This is a set of standard interfaces and functions used for communication between the driver and the operating system kernel. Developers can use these interfaces to register devices, handle interrupts, access memory, and control the state of the device. Driver interfaces are typically provided by the operating system and may vary between operating systems.
• Debugging and testing tools: Driver development frameworks usually also provide some tools for debugging and testing drivers. These tools can help developers locate and fix bugs in drivers, as well as verify driver correctness and performance. Common tools include debuggers, performance analyzers, simulators, and testing frameworks.
• Documentation and sample code: In order to help developers better understand and use the driver development framework, detailed documentation and sample code are usually provided. Documentation can explain how the framework is designed and used, and sample code can show how to implement common driver functionality.

3. Enterprise application store system

CUTOS enterprise application store system is a platform that provides application management and distribution for enterprises. It is similar to a regular app store but is more focused on meeting the needs and requirements of businesses. The main functions of the CUTOS enterprise application store system include the following aspects:

• LWA application management: The enterprise application store system allows enterprise administrators to centrally manage all applications. They can add, delete, update and monitor applications, as well as classify and label them. This allows for better organization and management of the enterprise application library.
• LWA application distribution: Enterprise application store system provides a convenient way to distribute applications to enterprise employees. Employees can browse and search for apps through the store system, then select and install the ones they need. This approach improves application accessibility and installation efficiency.
• Security and permission control: Enterprise app store systems usually have strong security and permission control functions. Administrators can assign different permissions to different users or user groups to ensure that only authorized users can access and install specific applications. In addition, the store system can review and verify applications to ensure their security and reliability.
• Internal application development and integration: Some enterprise app store systems also provide internal application development and integration capabilities. This means that businesses can develop and customize applications themselves and integrate them into store systems for distribution. This can better meet the specific needs of the enterprise and increase the availability and efficiency of internal applications.
• User feedback and reviews: Enterprise app store systems usually allow users to provide feedback and reviews on installed applications. This is extremely valuable to businesses, helping them understand the quality and user satisfaction of their applications and decide whether to continue using or updating them.

4. Desktop function

The desktop function of the CUTOS operating system refers to the user interface provided by CUTOS desk, which is used to display and manage applications, files and other operating system resources on the computer screen. Here are some common desktop features:

• Desktop icons: The operating system allows users to place icons on the desktop that represent various applications, folders, and other resources. Users can click on the icon to open the corresponding application or file.
• Start menu/application list: The operating system usually provides a start menu or application list from which the user can access installed applications. The Start menu typically includes a search function, a list of recently used applications, and shortcuts.
• Taskbar: The taskbar is usually located at the bottom of the desktop and displays currently running applications and system status. Users can switch apps, view notifications, and access system settings on the taskbar.
• Window management: The operating system allows users to open multiple application windows at the same time and provides some window management functions, such as maximizing, minimizing, closing and resizing windows. Users can resize and position the window by dragging its edges or splitting the window.
• Desktop background: Users can customize the desktop background image or color to personalize the desktop appearance.
• File management: The operating system provides a file manager for browsing, copying, moving and deleting files and folders. Users can create new folders or shortcuts on the desktop through the file manager, and sort and search files.
• Widgets and toolbars: The operating system allows users to add widgets or toolbars to the desktop to provide useful functions, such as weather forecast, calendar, clock, etc.
• Multitasking: The operating system allows users to run multiple applications at the same time and provides multitasking functions such as task switching and multi-window management so that users can easily switch and operate between different applications.

5. CUTOS-GW edge computing universal gateway

CUTOS-GW edge computing universal gateway functions usually include the following aspects:

• Network connection management: The edge computing universal gateway can manage and maintain network connections with edge devices, including device registration, authentication, identity verification and other functions.
• Data routing and forwarding: The edge computing universal gateway can route data from edge devices to specified targets according to configuration rules, and can implement data forwarding, filtering, aggregation and other functions.
• Security management: The edge computing universal gateway can provide security management functions such as data encryption, authentication, and access control to ensure the security of communication between edge devices and the cloud.
• Data caching and preprocessing: The edge computing universal gateway can cache and preprocess data from edge devices, reducing data transmission delays and bandwidth usage, and improving data processing efficiency.
• Device management and monitoring: The edge computing universal gateway can centrally manage and monitor edge devices, including device status, performance indicators, fault diagnosis, etc., to achieve remote configuration and management of devices.
• Local computing and analysis: The edge computing universal gateway can perform local computing and analysis near edge devices, reducing the need for data transmission to the cloud and improving real-time performance and response speed.
• Cloud coordination and scheduling: The edge computing general gateway can coordinate and schedule with the cloud, dynamically adjust the workload of edge devices according to business needs and resource conditions, and achieve optimal utilization of resources.
• Application expansion and customization: The edge computing universal gateway can provide application expansion and customization capabilities, and flexibly customize and deploy edge computing applications according to different business needs and scenario characteristics.

6. IPC

CUTOS inter-process communication (IPC) refers to the mechanism for transferring information and sharing resources between different processes in the operating system. The functions of IPC mainly include the following aspects:

• Data transfer: IPC provides the ability to transfer data between processes. Processes can send data from one process to another through shared memory, pipes, sockets, etc.
• Shared resources: IPC allows multiple processes to share the same resources, such as shared memory, files, devices, etc. This improves system efficiency and resource utilization.
• Process synchronization: IPC provides a mechanism for synchronization operations between processes to ensure the correctness when they access shared resources. Common synchronization mechanisms include semaphores, mutex locks, condition variables, etc.
• Process notification: IPC can be used for notification and event handling between processes. For example, a process can notify another process that an event has occurred by sending a signal or message to it.
• Remote procedure call (RPC): IPC can also be used to implement remote procedure calls, that is, function calls between processes on different computers. This enables distributed computing and collaboration.

In general, IPC provides an infrastructure for communication and collaboration between processes, allowing multiple processes to work together in the same system and complete tasks by sharing resources and information transfer.