Douglas Comer - Operating System Design: The Xinu Approach. 3rd Edition (2025) бесплатно

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The text uses a small, elegant system named Xinu as an example to illustrate the concepts and principles and make the discussion concrete. Because an operating system must deal with the underlying hardware, the text shows examples for the two basic computer architectural approaches used in the computer industry: CISC and RISC. Readers will see that most of the code remains identical across the two architectures, and they can easily compare the differences among the machine-dependent pieces, such as hardware initialization code, device interface code, and context switch code.
Xinu code is freely available, and readers are strongly encouraged to download the system and experiment by making modifications or extensions. The Xinu web page, https://xinu.cs.purdue.edu, contains links to the code from the book as well as instructions on how to run Xinu on experimenter hardware boards. The page also provides links to a version that runs on the (free) VirtualBox hypervisor. A reader can install VirtualBox on their laptop or desktop, and then run Xinu without the need for additional hardware.
Preface
1. Introduction And Overview
2. Concurrent Execution And Operating System Services
3. An Overview Of The Hardware And Runtime Environment
4. List And Queue Manipulation
5. Scheduling And Context Switching
6. More Process Management
7. Coordination Of Concurrent Processes
8. Message Passing
9. Basic Memory Management
10. High-level Memory Management and Virtual Memory
11. High-level Message Passing
12. Interrupt Processing
13. Real-time Clock Management
14. Device–independent Input And Output
15. An Example Device Driver
16. DMA Devices And Drivers (Ethernet)
17. A Minimal Internet Protocol Stack
18. A Remote Disk Driver
19. File Systems
20. A Remote File System
21. A Syntactic Namespace
22. System Initialization
23. Subsystem Initialization And Memory Marking
24. Exception Handling
25. System Configuration
26. A Pipe Mechanism
27. An Example User Interface: The Xinu Shell
28. Multicore Systems
29. Operating Systems Everywhere Index
About the Author
Douglas Earl Comer is a professor of computer science at Purdue University, where he teaches courses on operating systems and computer networks. He has written numerous research papers and textbooks, and currently heads several networking research projects. He has been involved in TCP/IP and internetworking since the late 1970s, and is an internationally recognized authority. He designed and implemented X25NET and Cypress networks, and the Xinu operating system. He is director of the Internetworking Research Group at Purdue, editor of Software - Practice and Experience, and a former member of the Internet Architecture Board. Comer completed the original version of Xinu (and wrote correspondent book The Xinu Approach) in 1979. Since then, Xinu has been expanded and ported to a wide variety of platforms, including: IBM PC, Macintosh, Digital Equipment Corporation VAX and DECstation 3100, Sun Microsystems Sun-2, Sun-3 and SPARCstations, and Intel Pentium. It has been used as the basis for many research projects. Furthermore, Xinu has been used as an embedded system in products by companies such as Motorola, Mitsubishi, Hewlett-Packard, and Lexmark.