This book introduces the tools you'll need to program with the packetC language. packetC speeds the development of applications that live within computer networks, the kind of programs that provide network functionality for connecting "clients" and "servers” and “clouds." The simplest examples provide packet switching and routing while more complex examples implement cyber security, broadband policies or cloud-based network infrastructure. Network applications, such as those processing digital voice and video, must be highly scalable, secure and maintainable. Such application requirements translate to requirements for a network programming language that leverages massively-parallel systems and ensures a high level of security, while representing networking protocols and transactions in the simplest way possible. packetC meets these requirements with an intuitive approach to coarse-grained parallelism, with strong-typing and controlled memory access for security and with new data types and operators that express the classic operations of the network-oriented world in familiar programming terms. No other language has addressed the full breadth of requirements for tractable parallelism, secure processing and usable constructs. The packetC language is growing in adoption and has been used to develop solutions operating in some of the world’s largest networks. This important new language, packetC, has now been successfully documented in this book, in which the language's authors provide the materials and tools you'll need in a readable and accessible form.

Covering all the essential components of Unix/Linux, including process management, concurrent programming, timer and time service, file systems and network programming, this textbook emphasizes programming practice in the Unix/Linux environment. Systems Programming in Unix/Linux is intended as a textbook for systems programming courses in technically-oriented Computer Science/Engineering curricula that emphasize both theory and programming practice. The book contains many detailed working example programs with complete source code. It is also suitable for self-study by advanced programmers and computer enthusiasts. Systems programming is an indispensable part of Computer Science/Engineering education. After taking an introductory programming course, this book is meant to further knowledge by detailing how dynamic data structures are used in practice, using programming exercises and programming projects on such topics as C structures, pointers, link lists and trees. This book provides a wide range of knowledge about computer systemsoftware and advanced programming skills, allowing readers to interface with operatingsystem kernel, make efficient use of system resources and develop application software.It also prepares readers with the needed background to pursue advanced studies inComputer Science/Engineering, such as operating systems, embedded systems, databasesystems, data mining, artificial intelligence, computer networks, network security,distributed and parallel computing.

Provides information on ways to use Wireshark to capture and analyze packets, covering such topics as building customized capture and display filters, graphing traffic patterns, and building statistics and reports.

Get an introduction into the Vala programming language and learn about its syntax, semantics, and idioms. Do you want to boost your productivity? Are you interested in a programming language that combines the efficiency of a scripting language with the performance of a compiled language? Did you always want to write GTK+ or GNOME programs, but hate C with a passion? Read this book and learn Vala! Introducing Vala Programming starts from Hello World and goes up to graphical user interfaces using GTK+, covering DBus interprocess communication, network programming, Linux specifics, and more. You’ll learn how to leverage external libraries and enhance Vala by writing bindings to new libraries. What You Will LearnDiscover the Vala programming language and how to use it to boost your productivityUse Vala syntax and semanticsWrite object-oriented code with ValaWork with DBusImplement networking with ValaIntegrate and use external libraries with bindings and libgusb Who This Book Is For People with basic programming experience in any imperative programming language.

What is eBPF? With this revolutionary technology, you can write custom code that dynamically changes the way the kernel behaves. It's an extraordinary platform for building a whole new generation of security, observability, and networking tools. This practical book is ideal for developers, system administrators, operators, and students who are curious about eBPF and want to know how it works. Author Liz Rice, chief open source officer with cloud native networking and security specialists Isovalent, also provides a foundation for those who want to explore writing eBPF programs themselves. With this book, you will: Learn why eBPF has become so important in the past couple of years Write basic eBPF code, and manipulate eBPF programs and attach them to events Explore how eBPF components interact with Linux to dynamically change the operating system's behavior Learn how tools based on eBPF can instrument applications without changes to the apps or their configuration Discover how this technology enables new tools for observability, security, and networking

This book presents the concept of group-centered prevention and provides explanations and exercises for learning the method and teaching it to others. Detailed studies offer evidence for the continuing importance of prevention in mental well-being and distinguishes group-centered prevention from other group interventions by its ability to resolve incipient mental health issues and emotional problems. Case examples with adults, children, couples, and others demonstrate successful uses of group-centered techniques as well as illustrate the problems that arise in group settings. The book's ready-to-apply training exercises give prospective group leaders practice in starting new groups, fostering cohesion, integrating therapeutic factors into sessions, and other core skills. Featured topics include: Group-centered prevention in contrast with other group interventions. Characteristics of effective leaders in group-centered prevention. Benefits of prevention groups as opposed to those gained in counseling and therapy. Key constructs of self-efficacy and intrinsic motivation in group-centered prevention. Stages of development in new groups. Formats for developing training exercises. Group-Centered Prevention in Mental Health is an essential resource for scientist-practitioners, clinicians, and researchers as well as graduate students in such disciplines as school psychology, social work, and public health. Its educational uses span classroom, workshop, and training settings across the health and healing disciplines.

OS X and iOS Kernel Programming combines essential operating system and kernel architecture knowledge with a highly practical approach that will help you write effective kernel-level code. You’ll learn fundamental concepts such as memory management and thread synchronization, as well as the I/O Kit framework. You’ll also learn how to write your own kernel-level extensions, such as device drivers for USB and Thunderbolt devices, including networking, storage and audio drivers. OS X and iOS Kernel Programming provides an incisive and complete introduction to the XNU kernel, which runs iPhones, iPads, iPods, and Mac OS X servers and clients. Then, you’ll expand your horizons to examine Mac OS X and iOS system architecture. Understanding Apple’s operating systems will allow you to write efficient device drivers, such as those covered in the book, using I/O Kit. With OS X and iOS Kernel Programming, you’ll: Discover classical kernel architecture topics such as memory management and thread synchronization Become well-versed in the intricacies of the kernel development process by applying kernel debugging and profiling tools Learn how to deploy your kernel-level projects and how to successfully package them Write code that interacts with hardware devices Examine easy to understand example code that can also be used in your own projects Create network filters Whether you’re a hobbyist, student, or professional engineer, turn to OS X andiOS Kernel Programming and find the knowledge you need to start developing

Provides information on ways to use Wireshark to capture and analyze packets, covering such topics as building customized capture and display filters, graphing traffic patterns, and building statistics and reports.

Network Algorithmics: An Interdisciplinary Approach to Designing Fast Networked Devices, Second Edition takes an interdisciplinary approach to applying principles for efficient implementation of network devices, offering solutions to the problem of network implementation bottlenecks. In designing a network device, there are dozens of decisions that affect the speed with which it will perform – sometimes for better, but sometimes for worse. The book provides a complete and coherent methodology for maximizing speed while meeting network design goals. The book is uniquely focused on the seamless integration of data structures, algorithms, operating systems and hardware/software co-designs for high-performance routers/switches and network end systems. Thoroughly updated based on courses taught by the authors over the past decade, the book lays out the bottlenecks most often encountered at four disparate levels of implementation: protocol, OS, hardware and architecture. It then develops fifteen principles key to breaking these bottlenecks, systematically applying them to bottlenecks found in end-nodes, interconnect devices and specialty functions located along the network. Later sections discuss the inherent challenges of modern cloud computing and data center networking. - Offers techniques that address common bottlenecks of interconnect devices, including routers, bridges, gateways, endnodes, and Web servers - Presents many practical algorithmic concepts that students and readers can work with immediately - Revised and updated throughout to discuss the latest developments from authors' courses, including measurement algorithmics, randomization, regular expression matching, and software-defined networking - Includes a new, rich set of homework exercises and exam questions to facilitate classroom use