Practical System programming for Rust developers: Build fast and secure software for Linux/Unix systems with the help of practical examples

Practical System Programming for Rust Developers....2 Why subscribe?....3 Contributors....3 About the author....3 About the reviewer....4 Packt is searching for authors like you....4 Preface....25 Who this book is for....26 What this book covers....27 To get the most out of this book....27 Download the example code files....28 Download the color images....29 Conventions used....29 Get in touch....29 Reviews....30 Section 1: Getting Started with System Programming in Rust....31 Chapter 1: Tools of the Trade – Rust Toolchains and Project Structures....32 Technical requirements....32 Choosing the right Rust configuration for your project....32 Choosing a Rust release channel....33 Selecting a Rust project type....34 Introducing Cargo and project structures....35 Automating build management with Cargo....36 Building a basic binary crate....36 Configuring Cargo....38 Building a static library crate....39 Automating dependency management....40 Specifying the location of a dependency....41 Using dependent packages in source code....41 Writing and running automated tests....42 Writing unit tests in Rust....42 Writing integration tests in Rust....44 Controlling test execution....45 Running tests sequentially or in parallel....46 Documenting your project....47 Writing inline documentation comments within crate....47 Writing documentation in markdown files....48 Running documentation tests....49 Summary....49 Further reading....50 Chapter 2: A Tour of the Rust Programming Language....51 Technical requirements....51 Analyzing the problem domain....51 Modeling the system behavior....52 Building the tokenizer....55 Tokenizer data structure....56 Tokenizer data processing....59 Building the parser....63 Parser data structure....63 Parser methods....65 Operator precedence....70 Building the evaluator....73 Dealing with errors....74 Putting it all together....77 Summary....79 Chapter 3: Introduction to the Rust Standard Library....80 Technical requirements....80 The Rust Standard Library and systems programming....80 Exploring the Rust Standard Library....82 Computation-oriented modules....86 Syscalls-oriented modules....88 Building a template engine....91 Template syntax and design....93 Writing the template engine....99 Executing the template engine....107 Summary....108 Further reading....108 Chapter 4: Managing Environment, Command Line, and Time....109 Technical requirements....110 Project scope and design overview....110 What will we build?....110 Technical design....113 Using the Rust Standard Library....114 Coding the imagix library....120 Developing the command-line application and testing....126 Designing the command-line interface....128 Coding the command-line binary using structopt....129 Summary....132 Section 2: Managing and Controlling System Resources in Rust....133 Chapter 5: Memory Management in Rust....134 Technical requirements....135 The basics of OS memory management....135 The memory management lifecycle....135 The process memory layout....138 Understanding the memory layout of Rust programs....139 Rust program memory layout....139 The characteristics of stack, heap, and static memory....141 The Rust memory management lifecycle....143 Overview of the Rust memory management lifecycle....144 Memory allocation....145 Memory use and manipulation....146 Memory deallocation....148 Implementing a dynamic data structure....150 Changes to the design of the template engine....151 Coding the dynamic data structure....153 Summary....157 Further reading....157 Chapter 6: Working with Files and Directories in Rust....158 Technical requirements....158 Understanding Linux system calls for file operations....158 Doing file I/O in Rust....160 Learning directory and path operations....165 Setting hard links, symbolic links, and performing queries....168 Writing a shell command in Rust (project)....169 Code overview....169 Error handling....171 Source metric computation....172 The main() function....176 Summary....178 Chapter 7: Implementing Terminal I/O in Rust....179 Technical requirements....179 Introducing terminal I/O fundamentals....179 Characteristics of terminals....180 The Termion crate....180 What will we build?....182 Working with the terminal UI (size, color, styles) and cursors....183 Writing data structures and the main() function....183 Initializing the text viewer and getting the terminal size....186 Displaying a document and styling the terminal color, styles, and cursor position....187 Exiting the text viewer....188 Processing keyboard inputs and scrolling....189 Listening to keystrokes from the user....190 Positioning the terminal cursor....191 Enabling scrolling on the terminal....192 Processing mouse inputs....194 Summary....196 Chapter 8: Working with Processes and Signals....198 Technical requirements....198 Understanding Linux process concepts and syscalls....199 How does a program become a process?....199 Delving into Linux process fundamentals....201 Spawning processes with Rust....203 Spawning new child processes....203 Terminating processes....205 Checking the status of a child process' execution....206 Handling I/O and environment variables....207 Handling the I/O of child processes....207 Setting the environment for the child process....209 Handling panic, errors, and signals....210 Aborting the current process....210 Signal handling....211 Writing a shell program in Rust (project)....213 Summary....218 Chapter 9: Managing Concurrency....220 Technical requirements....220 Reviewing concurrency basics....220 Concurrency versus parallelism....221 Concepts of multi-threading....223 Spawning and configuring threads....225 Error handling in threads....227 Message passing between threads....229 Achieving concurrency with shared state....231 Defining the program structure....232 Aggregating source file statistics in shared state....234 Pausing thread execution with timers....237 Summary....238 Section 3: Advanced Topics....239 Chapter 10: Working with Device I/O....240 Technical requirements....240 Understanding device I/O fundamentals in Linux....241 What are device drivers?....241 Types of devices....242 Doing buffered reads and writes....242 Working with standard input and output....244 Chaining and iterators over I/O....246 Handling errors and returning values....248 Getting details of connected USB devices (project)....250 Designing the project....250 Writing data structures and utility functions....252 Writing the main() function....254 Summary....256 Chapter 11: Learning Network Programming....257 Technical requirements....257 Reviewing networking basics in Linux....257 Understanding networking primitives in the Rust standard library....260 Programming with TCP and UDP in Rust....263 Writing a UDP server and client....263 Writing a TCP server and client....265 Writing a TCP reverse proxy (project)....266 Writing the origin server – structs and methods....268 Writing the origin server – the main() function....270 Writing the reverse proxy server....273 Summary....277 Chapter 12: Writing Unsafe Rust and FFI....279 Technical requirements....279 Introducing unsafe Rust....280 How do you distinguish between safe and unsafe Rust code?....280 Operations in unsafe Rust....281 Introducing FFIs....283 Reviewing guidelines for safe FFIs....285 Calling Rust from C (project)....286 Understanding the ABI....288 Summary....290 Other Books You May Enjoy....291 Leave a review - let other readers know what you think....292