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Linux System Programming
Talking Directly to the Kernel and C Library
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- Table of Contents
- Foreword
- + Preface
- + Introduction and Essential Concepts
- + File I/O
-
+
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
- + Advanced File I/O
-
+
Process Management
- + The Process ID
- + Running a New Process
- + Terminating a Process
- + Waiting for Terminated Child Processes
-
+
Users and Groups
- Real, Effective, and Saved User and Group IDs
- Changing the Real or Saved User or Group ID
- Changing the Effective User or Group ID
- Changing the User and Group IDs, BSD Style
- Changing the User and Group IDs, HP-UX Style
- Preferred User/Group ID Manipulations
- Support for Saved User IDs
- Obtaining the User and Group IDs
- + Sessions and Process Groups
- Daemons
- Conclusion
-
+
Advanced Process Management
- + File and Directory Management
-
+
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
-
+
Signals
-
+
Time
-
+
GCC Extensions to the C Language
- GNU C
- Inline Functions
- Suppressing Inlining
- Pure Functions
- Constant Functions
- Functions That Do Not Return
- Functions That Allocate Memory
- Forcing Callers to Check the Return Value
- Marking Functions As Deprecated
- Marking Functions As Used
- Marking Functions or Parameters As Unused
- Packing a Structure
- Increasing the Alignment of a Variable
- Placing Global Variables in a Register
- Branch Annotation
- Getting the Type of an Expression
- Getting the Alignment of a Type
- The Offset of a Member Within a Structure
- Obtaining the Return Address of a Function
- Case Ranges
- Void and Function Pointer Arithmetic
- More Portable and More Beautiful in One Fell Swoop
- + Bibliography
- Index
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.
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Book Details
Authors
Categories
Computers > Operating Systems > Linux
Publishers
Publication year : 2007
License: All rights reserved ©
Times read: 945
