Linux system programming
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 a...
| Autor principal: | |
|---|---|
| Formato: | Libro electrónico |
| Idioma: | Inglés |
| Publicado: |
Beijing ; Cambridge :
O'Reilly
2007.
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| Edición: | First edition |
| Materias: | |
| Ver en Biblioteca Universitat Ramon Llull: | https://discovery.url.edu/permalink/34CSUC_URL/1im36ta/alma991009627115206719 |
Tabla de Contenidos:
- Linux System Programming; Preface; Contents of This Book; Versions Covered in This Book; Conventions Used in This Book; Safari® Books Online; Using Code Examples; How to Contact Us; Acknowledgments; 1. Introduction and Essential Concepts; The C Library; The C Compiler; APIs and ABIs; ABIs; Standards; C Language Standards; Linux and the Standards; This Book and the Standards; Concepts of Linux Programming; Directories and links; Hard links; Symbolic links; Special files; Filesystems and namespaces; Processes; Process hierarchy; Users and Groups; Permissions; Signals; Interprocess Communication
- HeadersError Handling; Getting Started with System Programming; 2. File I/O; Owners of New Files; Permissions of New Files; The creat( ) Function; Return Values and Error Codes; Reading via read( ); Reading All the Bytes; Nonblocking Reads; Other Error Values; Size Limits on read( ); Writing with write( ); Append Mode; Nonblocking Writes; Other Error Codes; Size Limits on write( ); Behavior of write( ); Synchronized I/O; sync( ); The O_SYNC Flag; O_DSYNC and O_RSYNC; Direct I/O; Closing Files; Seeking with lseek( ); Error Values; Limitations; Positional Reads and Writes; Truncating Files
- Multiplexed I/Oselect( ) example; Portable sleeping with select( ); pselect( ); poll( ); poll( ) example; ppoll( ); poll( ) Versus select( ); Kernel Internals; The Page Cache; Page Writeback; Conclusion; 3. Buffered I/O; Standard I/O; Opening Files; Opening a Stream via File Descriptor; Closing Streams; Reading from a Stream; Reading an Entire Line; Reading Binary Data; Writing to a Stream; Writing a String of Characters; Writing Binary Data; Sample Program Using Buffered I/O; Seeking a Stream; Flushing a Stream; Errors and End-of-File; Obtaining the Associated File Descriptor
- Controlling the BufferingThread Safety; Unlocked Stream Operations; Critiques of Standard I/O; Conclusion; 4. Advanced File I/O; writev( ) example; readv( ) example; Implementation; The Event Poll Interface; Controlling Epoll; Waiting for Events with Epoll; Edge- Versus Level-Triggered Events; Mapping Files into Memory; getpagesize( ); PAGE_SIZE; Return values and error codes; Associated signals; munmap( ); Mapping Example; Advantages of mmap( ); Disadvantages of mmap( ); Resizing a Mapping; Changing the Protection of a Mapping; Synchronizing a File with a Mapping; Giving Advice on a Mapping
- Advice for Normal File I/OThe readahead( ) System Call; Advice Is Cheap; Synchronized, Synchronous, and Asynchronous Operations; I/O Schedulers and I/O Performance; The Life of an I/O Scheduler; Helping Out Reads; The Anticipatory I/O Scheduler; The CFQ I/O Scheduler; The Noop I/O Scheduler; Selecting and Configuring Your I/O Scheduler; Optimizing I/O Performance; Sorting by inode; Sorting by physical block; Conclusion; 5. Process Management; The Process Hierarchy; pid_t; Obtaining the Process ID and Parent Process ID; Running a New Process; Error values; The fork( ) System Call; vfork( )
- Terminating a Process
