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文件名称：Linux System Programming
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文件格式：PDF
更新时间：2017-05-22 17:44:49
Linux, System, Eng
If any evolving operating system is a moving target, Linux is a rabid cheetah.
Progress is measured in days, not years, and frequent releases of the kernel and other
components constantly morph the playing field. No book can hope to capture such a
dynamic beast in a timeless fashion.
Nonetheless, the programming environment defined by system programming is set in
stone....
Contents of This Book
This book is broken into 10 chapters, an appendix, and a bibliography.
Chapter 1, Introduction and Essential Concepts
This chapter serves as an introduction, providing an overview of Linux, system
programming, the kernel, the C library, and the C compiler. Even advanced
users should visit this chapter—trust me.
Chapter 2, File I/O
This chapter introduces files, the most important abstraction in the Unix environment,
and file I/O, the basis of the Linux programming mode. This chapter
covers reading from and writing to files, along with other basic file I/O operations.
The chapter culminates with a discussion on how the Linux kernel implements and
manages files.
Chapter 3, Buffered I/O
This chapter discusses an issue with the basic file I/O interfaces—buffer size
management—and introduces buffered I/O in general, and standard I/O in particular,
as solutions.
Chapter 4, Advanced File I/O
This chapter completes the I/O troika with a treatment on advanced I/O interfaces,
memory mappings, and optimization techniques. The chapter is capped with
a discussion on avoiding seeks, and the role of the Linux kernel’s I/O scheduler
Chapter 5, Process Management
This chapter introduces Unix’s second most important abstraction, the process,
and the family of system calls for basic process management, including the venerable
fork.
Chapter 6, Advanced Process Management
This chapter continues the treatment with a discussion of advanced process
management, including real-time processes.
Chapter 7, File and Directory Management
This chapter discusses creating, moving, copying, deleting, and otherwise managing
files and directories.
Chapter 8, Memory Management
This chapter covers memory management. It begins by introducing Unix concepts
of memory, such as the process address space and the page, and continues
with a discussion of the interfaces for obtaining memory from and returning
memory to the kernel. The chapter concludes with a treatment on advanced
memory-related interfaces.
Chapter 9, Signals
This chapter covers signals. It begins with a discussion of signals and their role
on a Unix system. It then covers signal interfaces, starting with the basic, and
concluding with the advanced.
Chapter 10, Time
This chapter discusses time, sleeping, and clock management. It covers the basic
interfaces up through POSIX clocks and high-resolution timers.
Appendix, GCC Extensions to the C Language
The Appendix reviews many of the optimizations provided by gcc and GNUC,
such as attributes for marking a function constant, pure, and inline.
The book concludes with a bibliography of recommended reading, listing both useful
supplements to this work, and books that address prerequisite topics not covered
herein.