高级UNIX程序设计 第2版PDF电子书下载

Chapter 1 Fundamental Concepts 1

1.1 A Whirlwind Tour of UNIX and Linux 16

1.2 Versions of UNIX 16

1.3 Using System Calls 19

1.4 Error Handling 24

1.5 UNIX Standards 38

1.6 Common Header File 55

1.7 Dates and Times 56

1.8 About the Example Code 67

1.9 Essential Resources 68

Chapter 2 Basic File I/O 71

2.1 Introduction to File I/O 71

2.2 File Descriptors and Open File Descriptions 72

2.3 Symbols for File Permission Bits 75

2.4 open and creat System Calls 76

2.5 umask System Call 86

2.6 unlink System Call 86

2.7 Creating Temporary Files 88

2.8 File Offsets and O_APPEND 90

2.9 write System Call 92

2.10 read System Call 96

2.11 close System Call 97

2.12 User Buffered I/O 98

2.13 lseek System Call 105

2.14 pread and pwrite System Calls 108

2.15 readv and writev System Calls 110

2.16 Synchronized I/O 114

2.17 truncate and ftruncate System Calls 119

Chapter 3 Advanced File I/O 123

3.1 Introduction 123

3.2 Disk Special Files and File Systems 123

3.3 Hard and Symbolic Links 137

3.4 Pathnames 144

3.5 Accessing and Displaying File Metadata 147

3.6 Directories 158

3.7 Changing an I-Node 181

3.8 More File-Manipulation Calls 185

3.9 Asynchronous I/O 189

Chapter 4 Terminal I/O 203

4.1 Introduction 203

4.2 Reading from a Terminal 204

4.3 Sessions and Process Groups(Jobs) 224

4.4 ioctl System Call 232

4.5 Setting Terminal Attributes 233

4.6 Additional Terminal-Control System Calls 245

4.7 Terminal-Identification System Calls 248

4.8 Full-Screen Applications 250

4.9 STREAMS I/O 255

4.10 Pseudo Terminals 256

Chapter 5 Processes and Threads 277

5.1 Introduction 277

5.2 Environment 277

5.3 exec System Calls 284

5.4 Implementing a Shell (Version 1) 292

5.5 fork System Call 296

5.6 Implementing a Shell (Version 2) 300

5.7 exit System Calls and Process Termination 301

5.8 wait, waitpid, and waitid System Calls 304

5.9 Signals, Termination, and Waiting 313

5.10 Implementing a Shell (Version 3) 314

5.11 Getting User and Group IDs 315

5. 1 2 Setting User and Group IDs 317

5.13 Getting Process IDs 319

5.14 chroot System Call 319

5.15 Getting and Setting the Priority 320

5.16 Process Limits 322

5.17 Introduction to Threads 329

5.18 The Blocking Problem 350

Chapter 6 Basic Interprocess Communication 361

6.1 Introduction 361

6.2 Pipes 362

6.3 dup and dup2 System Calls 371

6.4 A Real Shell 376

6.5 Two-Way Communication with Unidirectional Pipes 390

6.6 Two-Way Communication with Bidirectional Pipes 399

Chapter 7 Advanced Interprocess Communication 405

7.1 Introduction 405

7.2 FIFOs, or Named Pipes 406

7.3 An Abstract Simple Messaging Interface (SMI) 414

7.4 System V IPC (Interprocess Communication) 428

7.5 System V Message Queues 434

7.6. POSIX IPC 442

7.7 POSIX Message Queues 445

7.8 About Semaphores 458

7.9 System V Semaphores 460

7.10 POSIX Semaphores 469

7.11 File Locking 477

7.12 About Shared Memory 488

7.13 System V Shared Memory 489

7.14 POSIX Shared Memory 504

7.15 Performance Comparisons 515

Chapter 8 Networking and Sockets 519

8.1 Socket Basics 520

8.2 Socket Addresses 533

8.3 Socket Options 544

8.4 Simple Socket Interface (SSI) 549

8.5 Socket Implementation of SMI 563

8.6 Connectionless Sockets 567

8.7 Out-of-Band Data 577

8.8 Network Database Functions 578

8.9 Miscellaneous System Calls 593

8.10 High-Performance Considerations 597

Chapter 9 Signals and Timers 601

9.1 Signal Basics 601

9.2 Waiting for a Signal 624

9.3 Miscellaneous Signal System Calls 634

9.4 Deprecated Signal System Calls 635

9.5 Realtime Signals Extension (RTS) 637

9.6 Global Jumps 648

9.7 Clocks and Timers 651

Appendix A Process Attributes 667

Appendix B Ux: A C＋＋ Wrapper for Standard UNIX Functions 673

Appendix C Jtux: A Java/Jython Interface to Standard UNIX Functions 677

Appendix D Alphabetical and Categorical Function Lists 685

References 703

Index 705