在这本经典著作里，两位作者继续就开放源代码的FreeBSD的内部结构进行了全面、全新、权威的论述。他们高屋建瓴、简明扼要地概括FreeBSD的设计和实现，而在阐述设计决策方面的关键之处时，他们又能细致入微地讲解实现系统功能所采用的概念、数据结构和算法。

通过阅读本书，技术与售后支持相关的人员可以获知系统的功能与限制，应用开发人员可以了解与系统接口的有效、高效的方式，系统管理员可以学到如何维护、调整与配置系统，而系统程序员可以明了如何扩展、增强并连接系统。

Preface

About the Authors

Part Ⅰ Overview

Chapter 1 History and Goals

 1.1 History of the UNIX System

Origins

Research UNIX

AT&T UNIX System Ⅲ and System V

Berkeley Software Distributions

UNIX in the World

 1.2 BSD and Other Systems

The Influence of the User Community

 1.3 The Transition of BSD to Open Source

Networking Release

The Lawsuit

4.4BSD

4.4BSD-Lite Release

 1.4 The FreeBSD Development Model

References

Chapter 2 Design Overview of FreeBSD

 2.1 FreeBSD Facilities and the Kernel

The Kernel

 2.2 Kernel Organization

 2.3 Kernel Services

 2.4 Process Management

Signals

Process Groups and Sessions

 2.5 Memory Management

BSD Memory-Management Design Decisions

Memory Management Inside the Kernel

 2.6 I/O System

Descriptors and I/O

Descriptor Management

Devices

Socket IPC

Scatter/Gather I/O

Multiple Filesystem Support

 2.7 Devices

 2.8 Filesystems

Filestores

 2.9 Network Filesystem

 2.10 Terminals

 2.11 lnterprocess Communication

 2.12 Network Communication

 2.13 Network Implementation

 2.14 System Operation

Exercises

References

Chapter 3 Kernel Services

 3.1 Kernel Organization

System Processes

System Entry

Run-Tune Organization

Entry to the Kernel

Return from the Kernel

 3.2 System Calls

Result Handling

Returning from a System Call

 3.3 Traps and Interrupts

Traps

I/O Device Interrupts

Software Interrupts

 3.4 Clock Interrupts

Statistics and Process Scheduling

Timeouts

 3.5 Memory-Management Services

 3.6 Tuning Services

Real Time

 ...

Part Ⅱ Processes

Chapter 4 Process Management

Chapter 5 Memory Management

Part Ⅲ I/0 System

Chapter 6 I/O System Overview

Chapter 7 Devices

Chapter 8 Local Filesystems

Chapter 9 The Network Filesystem

Chapter 10 Terminal Handling

Part Ⅳ Interprocess Communication

Chapter 11 Interprocess Communication

Chapter 12 Network Commnnication

Chapter 13 Network Protocols

Part V System Operation

Chapter 14 Startup and Shutdown

Glossary

Index