Linux之父Linus Torvalds曾捧读的经典著作！这是一本全面介绍UNIX系统V内核结构的经典教材。本书深入分析了UNIX的内核算法、基本数据结构以及它们同上层编程接口的关系。本书首先对系统内核结构进行了简要介绍，然后分章节描述了文件系统、进程调度和存储管理，并在此基础上讨论了UNIX系统的高级问题。本书为英文版。

本书是一本全面介绍UNIX系统V内核结构的经典教材。Bach在这本传世之作中深入分析了UNIX的内核算法、基本数据结构以及它们同上层编程接口的关系。本书首先对系统内核结构进行了简要介绍，然后分章节描述了文件系统、进程调度和存储管理，并在此基础上讨论了UNIX系统的高级问题，如驱动程序接口、进程间通信与网络等。

本书虽然以UNIX系统V为背景，但是介绍的算法、数据结构却并没有专门针对任何一种特定的内核，所以直到今日，本书仍然是世界上许多大学操作系统课程的必读或推荐教材。读者如果想要学习UNIX，本书依然是最好的选择之一。

本书的适用范围非常广泛。首先，本书可用作高等院校高年级本科生或低年级研究生的操作系统课程教材，学生使用本书的同时若能参考系统源代码将获益匪浅，但也可以独立地学习本书。其次，系统程序员可将本书作为参考书，从而更好地理解内核的工作原理，并将UNIX系统中采用的算法与其他操作系统的算法加以比较。最后，UNIX系统程序员也可将本书作为参考书，从而更深入地了解他们的程序是如何与系统相互作用的，进而编写出更有效、更高级的程序。

PREFACE

CHAPTER 1 GENERAL OVERVIEW OF THE SYSTEM

1.1 History

1.2 System Structure

1.3 User Perspective

1.4 Operating System Services

1.5 Assumptions About Hardware

1.6 Summary

CHAPTER 2 INTRODUCTION TO THE KERNEL

2.1 Architecture of the UNIX Operating System

2.2 Introduction to System Concepts

2.3 Kernel Data Structures

2.4 System Administration

2.5 Summary and Preview

2.6 Exercises

CHAPTER 3 THE BUFFER CACHE

3.1 Buffer Headers

3.2 Structure of the Buffer Pool

3.3 Scenarios for Retrieval of a Buffer

3.4 Reading and Writing Disk Blocks

3.5 Advantages and Disadvantages of the Buffer Cache 

3.6 Summary

3.7 Exercises

CHAPTER 4 INTERNAL REPRESENTATION OF FILES 

4.1 Inodes

4.2 Structure of a Regular File

4.3 Directories

4.4 Conversion of a Path Name to an Inode

4.5 Super Block

4.6 Inode Assignment to a New File

4.7 Allocation of Disk Blocks

4.8 Other File Types

4.9 Summary

4.10 Exercises

CHAPTER 5 SYSTEM CALLS FOR THE FILE SYSTEM 

5.1 Open

5.2 Read

5.3 Write

5.4 File and Record Locking .

5.5 Adjusting the Position of File I/O-LSEEK 

5.6 Close

5.7 File Creation

5.8 Creation of Special Files

5.9 Change Directory and Change Root

5.10 Change Owner and Change Mode

5.11 STAT and FSTAT

5.12 Pipes

5.13 Dup

5.14 Mounting and Unmounting File Systems

5.15 Link

5.16 Unlink

5.17 File System Abstractions

5.18 File System Maintenance

5.19 Summary

5.20 Exercises

CHAPTER 6 THE STRUCTURE OF PROCESSES

6.1 Process States and Transitions

6.2 Layout of System Memory

6.3 The Context of a Process

6.4 Saving the Context of a Process

6.5 Manipulation of the Process Address Space

6.6 Sleep 

6.7 Summary

6.8 Exercises

CHAPTER 7 PROCESS CONTROL

7.1 Process Creation

7.2 Signals

7.3 Process Termination

7.4 Awaiting Process Termination

7.5 Invoking Other Programs

7.6 The User ID of a Process

7.7 Changing the Size of a Process

7.8 The Shell

7.9 System Boot and the INIT Process

7.10 Summary

7.11 Exercises

CHAPTER 8 PROCESS SCHEDULING AND TIME

8.1 Process Scheduling

8.2 System Calls For Time

8.3 Clock

8.4 Summary.

8.5 Exercises

CHAPTER 9 MEMORY MANAGEMENT POLICIES

9.1 Swapping

9.2 Demand Paging

9.3 A Hybrid System With Swapping and Demand Paging

9.4 Summary.

9.5 Exercises

CHAPTER 10 THE I/O SUBSYSTEM

10.1 Driver Interfaces

10.2 Disk Drivers

10.3 Terminal Drivers

10.4 Streams

10.5 Summary

10.6 Exercises

CHAPTER 11 INTERPROCESS COMMUNICATION

11.1 Process Tracing

11.2 System V IPC

11.3 Network Communications

11.4 Sockets

11.5 Summary.

11.6 Exercises

CHAPTER 12 MULTIPROCESSOR SYSTEMS

12.1 Problem of Multiprocessor Systems

12.2 Solution With Master and Slave Processors

12.3 Solution With Semaphores

12.4 The Tunis System

12.5 Performance Limitations

12.6 Exercises

CHAPTER 13 DISTRIBUTED UNIX SYSTEMS

13.1 Satellite Processors

13.2 The Newcastle Connection

13.3 Transparent Distributed File Systems

13.4 A Transparent Distributed Model Without Stub Processes

13.5 Summary

13.6 Exercises

APPENDIX--SYSTEM CALLS

BIBLIOGRAPHY

INDEX