A software timer allows a function to be invoked on expiry of a time duration. There are two types of timers: dynamic timers used by the kernel and interval timers used by the user-space processes. Apart from software timers, there is another type of commonly used timing function called delay functions. Delay functions implement a precise loop, which is executed as per (usually as many times as the) delay function's argument.
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Mastering Linux Kernel Development
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Mastering Linux Kernel Development
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Overview of this book
Mastering Linux Kernel Development looks at the Linux kernel, its internal arrangement and design, and various core subsystems, helping you to gain significant understanding of this open source marvel. You will look at how the Linux kernel, which possesses a kind of collective intelligence thanks to its scores of contributors, remains so elegant owing to its great design.
This book also looks at all the key kernel code, core data structures, functions, and macros, giving you a comprehensive foundation of the implementation details of the kernel’s core services and mechanisms. You will also look at the Linux kernel as well-designed software, which gives us insights into software design in general that are easily scalable yet fundamentally strong and safe.
By the end of this book, you will have considerable understanding of and appreciation for the Linux kernel.
Table of Contents (12 chapters)
Preface
Free Chapter
Comprehending Processes, Address Space, and Threads
Deciphering the Process Scheduler
Signal Management
Memory Management and Allocators
Filesystems and File I/O
Interprocess Communication
Virtual Memory Management
Kernel Synchronization and Locking
Interrupts and Deferred Work
Clock and Time Management
Module Management
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