Advanced UNIX Programming

Preface

Chapter 1 Fundamental Concepts
 A Whirlwind Tour of UNIX and Linux
 Versions of UNIX
 Using System Calls
 Error Handling
 UNIX Standards
 Common Header File
 Dates and Times
 About the Example Code
 Essential Resources

Chapter 2 Basic File I/O
 Introduction to File I/O
 File Descriptors and Open File Descriptions
 Symbols for File Permission Bits
 open and creat System Calls
 umask System Call
 unlink System Call
 Creating Temporary Files
 File Offsets and O_APPEND
 write System Call
 read System Call
 close System Call
 User Buffered I/O
 lseek System Call
 pread and pwrite System Calls
 readv and writev System Calls
 Synchronized I/O
 truncate and ftruncate System Calls

Chapter 3 Advanced File I/O
 Introduction
 Disk Special Files and File Systems
 Hard and Symbolic Links
 Pathnames
 Accessing and Displaying File Metadata
 Directories
 Changing an I-Node
 More File-Manipulation Calls
 Asynchronous I/O

Chapter 4 Terminal I/O
 Introduction
 Reading from a Terminal
 Sessions and Process Groups (Jobs)
 ioctl System Call
 Setting Terminal Attributes
 Additional Terminal-Control System Calls
 Terminal-Identification System Calls
 Full-Screen Applications
 STREAMS I/O
 Pseudo Terminals

Chapter 5 Processes and Threads
 Introduction
 Environment
 exec System Calls
 Implementing a Shell (Version 1)
 fork System Call
 Implementing a Shell (Version 2)
 exit System Calls and Process Termination
 wait, waitpid, and waitid System Calls
 Signals, Termination, and Waiting
 Implementing a Shell (Version 3)
 Getting User and Group IDs
 Setting User and Group IDs
 Getting Process IDs
 chroot System Call
 Getting and Setting the Priority
 Process Limits
 Introduction to Threads
 The Blocking Problem

Chapter 6 Basic Interprocess Communication
 Introduction
 Pipes
 dup and dup2 System Calls
 A Real Shell
 Two-Way Communication with Unidirectional Pipes
 Two-Way Communication with Bidirectional Pipes

Chapter 7 Advanced Interprocess Communication
 Introduction
 FIFOs, or Named Pipes
 An Abstract Simple Messaging Interface (SMI)
 System V IPC (Interprocess Communication)
 System V Message Queues
 POSIX IPC
 POSIX Message Queues
 About Semaphores
 System V Semaphores
 POSIX Semaphores
 File Locking
 About Shared Memory
 System V Shared Memory
 POSIX Shared Memory
 Performance Comparisons

Chapter 8 Networking and Sockets
 Socket Basics
 Socket Addresses
 Socket Options
 Simple Socket Interface (SSI)
 Socket Implementation of SMI
 Connectionless Sockets
 Out-of-Band Data
 Network Database Functions
 Miscellaneous System Calls
 High-Performance Considerations

Chapter 9 Signals and Timers
 Signal Basics
 Waiting for a Signal
 Miscellaneous Signal System Calls
 Deprecated Signal System Calls
 Realtime Signals Extension (RTS)
 Global Jumps
 Clocks and Timers

Appendix A Process Attributes
Appendix B Ux: A C++ Wrapper for Standard UNIX Functions
Appendix C Jtux: A Java/Jython Interface to Standard UNIX Functions
Appendix D Alphabetical and Categorical Function Lists
References
Index