Linux System Programming
Talking Directly to the Kernel and C Library
1st Edition
Published on 23. October 2007
Book
388 pages
978-0-596-00958-8 (ISBN)
Description
This book is about writing software that makes the most effective use of the system you're running on -- code that interfaces directly with the kernel and core system libraries, including the shell, text editor, compiler, debugger, core utilities, and system daemons. The majority of both Unix and Linux code is still written at the system level, and Linux System Programming focuses on everything above the kernel, where applications such as Apache, bash, cp, vim, Emacs, gcc, gdb, glibc, ls, mv, and X exist.
Written primarily for engineers looking to program (better) at the low level, this book is an ideal teaching tool for any programmer. Even with the trend toward high-level development, either through web software (such as PHP) or managed code (C#), someone still has to write the PHP interpreter and the C# virtual machine. Linux System Programming gives you an understanding of core internals that makes for better code, no matter where it appears in the stack. Debugging high-level code often requires you to understand the system calls and kernel behavior of your operating system, too.
Key topics include:
* An overview of Linux, the kernel, the C library, and the C compiler
* Reading from and writing to files, along with other basic file I/O operations, including how the Linux kernel implements and manages file I/O
* Buffer size management, including the Standard I/O library
* Advanced I/O interfaces, memory mappings, and optimization techniques
* The family of system calls for basic process management
* Advanced process management, including real-time processes
* File and directories-creating, moving, copying, deleting, and managing them
* Memory management -- interfaces for allocating memory, managing the memory you
have, and optimizing your memory access
* Signals and their role on a Unix system, plus basic and advanced signal interfaces
* Time, sleeping, and clock management, starting with the basics and continuing through POSIX clocks and high resolution timers
With Linux System Programming, you will be able to take an in-depth look at Linux from both a theoretical and an applied perspective as you cover a wide range of programming topics.
Written primarily for engineers looking to program (better) at the low level, this book is an ideal teaching tool for any programmer. Even with the trend toward high-level development, either through web software (such as PHP) or managed code (C#), someone still has to write the PHP interpreter and the C# virtual machine. Linux System Programming gives you an understanding of core internals that makes for better code, no matter where it appears in the stack. Debugging high-level code often requires you to understand the system calls and kernel behavior of your operating system, too.
Key topics include:
* An overview of Linux, the kernel, the C library, and the C compiler
* Reading from and writing to files, along with other basic file I/O operations, including how the Linux kernel implements and manages file I/O
* Buffer size management, including the Standard I/O library
* Advanced I/O interfaces, memory mappings, and optimization techniques
* The family of system calls for basic process management
* Advanced process management, including real-time processes
* File and directories-creating, moving, copying, deleting, and managing them
* Memory management -- interfaces for allocating memory, managing the memory you
have, and optimizing your memory access
* Signals and their role on a Unix system, plus basic and advanced signal interfaces
* Time, sleeping, and clock management, starting with the basics and continuing through POSIX clocks and high resolution timers
With Linux System Programming, you will be able to take an in-depth look at Linux from both a theoretical and an applied perspective as you cover a wide range of programming topics.
More details
Language
English
Place of publication
Sebastopol
United States
Target group
Professional and scholarly
Product notice
Paperback (trade)
Illustrations
1, black & white illustrations
Dimensions
Height: 233 mm
Width: 178 mm
Thickness: 20 mm
Weight
624 gr
ISBN-13
978-0-596-00958-8 (9780596009588)
Schweitzer Classification
Other editions
New editions
Book
07/2013
2nd Edition
O'Reilly
€69.50
Shipment within 10-20 days
Person
Robert Love has used Linux since the early days. He is involved in and passionate about both the Linux kernel and GNOME communities. He has written and maintained numerous projects, including the preemptive kernel, GNOME Volume Manager, and inotify.Robert is Chief Architect, Linux Desktop, at Novell.He is the author of Linux Kernel Development (SAMS 2005) and the co-author of Linux in a Nutshell (2006 O'Reilly). He is currently working on a new work for O'Reilly that will be the greatest book ever written, give or take.Robert is a Contributing Editor at Linux Journal.He holds a B.A. in Mathematics and a B.S. in Computer Science from the University of Florida. A proud Gator, Robert was born in South Florida but currently calls home Cambridge, MA.
Content
Inhaltsverzeichnis
Foreword
Preface
1. Introduction and Essential Concepts
System Programming
APIs and ABIs
Standards
Concepts of Linux Programming
Getting Started with System Programming
2. File I/O
Opening Files
Reading via read( )
Writing with write( )
Synchronized I/O
Direct I/O
Closing Files
Seeking with lseek( )
Positional Reads and Writes
Truncating Files
Multiplexed I/O
Kernel Internals
Conclusion
3. Buffered I/O
User-Buffered I/O
Standard I/O
Opening Files
Opening a Stream via File Descriptor
Closing Streams
Reading from a Stream
Writing to a Stream
Sample Program Using Buffered I/O
Seeking a Stream
Flushing a Stream
Errors and End-of-File
Obtaining the Associated File Descriptor
Controlling the Buffering
Thread Safety
Critiques of Standard I/O
Conclusion
4. Advanced File I/O
Scatter/Gather I/O
The Event Poll Interface
Mapping Files into Memory
Advice for Normal File I/O
Synchronized, Synchronous, and Asynchronous Operations
I/O Schedulers and I/O Performance
Conclusion
5. Process Management
The Process ID
Running a New Process
Terminating a Process
Waiting for Terminated Child Processes
Users and Groups
Sessions and Process Groups
Daemons
Conclusion
6. Advanced Process Management
Process Scheduling
Yielding the Processor
Process Priorities
Processor Affinity
Real-Time Systems
Resource Limits
7. File and Directory Management
Files and Their Metadata
Directories
Links
Copying and Moving Files
Device Nodes
Out-of-Band Communication
Monitoring File Events
8. Memory Management
The Process Address Space
Allocating Dynamic Memory
Managing the Data Segment
Anonymous Memory Mappings
Advanced Memory Allocation
Debugging Memory Allocations
Stack-Based Allocations
Choosing a Memory Allocation Mechanism
Manipulating Memory
Locking Memory
Opportunistic Allocation
9. Signals
Signal Concepts
Basic Signal Management
Sending a Signal
Reentrancy
Signal Sets
Blocking Signals
Advanced Signal Management
Sending a Signal with a Payload
Conclusion
10. Time
Time's Data Structures
POSIX Clocks
Getting the Current Time of Day
Setting the Current Time of Day
Playing with Time
Tuning the System Clock
Sleeping and Waiting
Timers
Appendix. GCC Extensions to the C Language
Bibliography
Index
Foreword
Preface
1. Introduction and Essential Concepts
System Programming
APIs and ABIs
Standards
Concepts of Linux Programming
Getting Started with System Programming
2. File I/O
Opening Files
Reading via read( )
Writing with write( )
Synchronized I/O
Direct I/O
Closing Files
Seeking with lseek( )
Positional Reads and Writes
Truncating Files
Multiplexed I/O
Kernel Internals
Conclusion
3. Buffered I/O
User-Buffered I/O
Standard I/O
Opening Files
Opening a Stream via File Descriptor
Closing Streams
Reading from a Stream
Writing to a Stream
Sample Program Using Buffered I/O
Seeking a Stream
Flushing a Stream
Errors and End-of-File
Obtaining the Associated File Descriptor
Controlling the Buffering
Thread Safety
Critiques of Standard I/O
Conclusion
4. Advanced File I/O
Scatter/Gather I/O
The Event Poll Interface
Mapping Files into Memory
Advice for Normal File I/O
Synchronized, Synchronous, and Asynchronous Operations
I/O Schedulers and I/O Performance
Conclusion
5. Process Management
The Process ID
Running a New Process
Terminating a Process
Waiting for Terminated Child Processes
Users and Groups
Sessions and Process Groups
Daemons
Conclusion
6. Advanced Process Management
Process Scheduling
Yielding the Processor
Process Priorities
Processor Affinity
Real-Time Systems
Resource Limits
7. File and Directory Management
Files and Their Metadata
Directories
Links
Copying and Moving Files
Device Nodes
Out-of-Band Communication
Monitoring File Events
8. Memory Management
The Process Address Space
Allocating Dynamic Memory
Managing the Data Segment
Anonymous Memory Mappings
Advanced Memory Allocation
Debugging Memory Allocations
Stack-Based Allocations
Choosing a Memory Allocation Mechanism
Manipulating Memory
Locking Memory
Opportunistic Allocation
9. Signals
Signal Concepts
Basic Signal Management
Sending a Signal
Reentrancy
Signal Sets
Blocking Signals
Advanced Signal Management
Sending a Signal with a Payload
Conclusion
10. Time
Time's Data Structures
POSIX Clocks
Getting the Current Time of Day
Setting the Current Time of Day
Playing with Time
Tuning the System Clock
Sleeping and Waiting
Timers
Appendix. GCC Extensions to the C Language
Bibliography
Index