Modern Systems Programming with Scala Native: Write Lean, High-Performance Code without the JVM, 1st Edition

Modern Systems Programming with Scala Native: Write Lean, High-Performance Code without the JVM, 1st Edition

AUTHOR: Richard Whaling

PUBLISHER: Pragmatic Bookshel

PAGES: 230

ISBN-10: 1680506226; ISBN-13: 978-1680506228

Access the power of bare-metal systems programming with Scala Native, an ahead-of-time Scala compiler. Without the baggage of legacy frameworks and virtual machines, Scala Native lets you re-imagine how your programs interact with your operating system. Compile Scala code down to native machine instructions; seamlessly invoke operating system APIs for low-level networking and IO; control pointers, arrays, and other memory management techniques for extreme performance; and enjoy instant start-up times. Skip the JVM and improve your code performance by getting close to the metal.

Developers generally build systems on top of the work of those who came before, accumulating layer upon layer of abstraction. Scala Native provides a rare opportunity to remove layers. Without the JVM, Scala Native uses POSIX and ANSI C APIs to build concise, expressive programs that run unusually close to bare metal. Scala Native compiles Scala code down to native machine instructions instead of JVM bytecode. It starts up fast, without the sluggish warm-up phase that's common for just-in-time compilers. Scala Native programs can seamlessly invoke operating system APIs for low-level networking and IO. And Scala Native lets you control pointers, arrays, and other memory layout types for extreme performance.

Write practical, bare-metal code with Scala Native, step by step. Understand the foundations of systems programming, including pointers, arrays, strings, and memory management. Use the UNIX socket API to write network client and server programs without the sort of frameworks higher-level languages rely on. Put all the pieces together to design and implement a modern, asynchronous microservice-style HTTP framework from scratch.

Take advantage of Scala Native's clean, modern syntax to write lean, high-performance code without the JVM.

What You Need:
A modern Windows, Mac OS, or Linux system capable of running Docker. All code examples in the book are designed to run on a portable Docker-based build environment that runs anywhere. If you don't have Docker yet, see the Appendix for instructions on how to get it.

About the Author
Richard is a data engineering consultant at Spantree Technology Group in Chicago, where he designs large data pipelines using Scala-based technologies like Spark and Akka. He's made open-source contributions to Scala Native and Apache Kafka, and he blogs and speaks frequently about Scala and other functional programming topics.

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HRMS & Payroll Web Application

Revised Payslip to a Detailed Format

Payslip is a document received by the employees concerned, but also to the employer who pays his wages. Issuance of payslips to the employees not only promotes transparency in payment of compensation and benefits, but also provides reference in resolving conflicts involving money claims against the employer. read more »

Manual Entry of Daily Time Records (DTR)

This module created for the purpose of evaluation process or testing the whole processing from HR employee record up to payroll computation on not waiting time logs coming fingerprint attendance system. You can analyze or audit the output process by generating timekeeping report, pay slip and payroll report etc. to make it sure the computation of wages set by department of labor must follow. read more »

Generate Timesheet from Fingerprint Attendance System

Companies are switching to a fingerprint attendance system to get accurate daily time record and avoids time registration fraud know as buddy punching. Also reduces overhead for security staff when employee coming in or out to record their time logs, easy to monitor daily head count like present, absent and late. read more »

Online Payroll Processing and Payroll Reports

Online payroll processing consists of steps needed to pay employees each pay period, involves tracking hours worked, employee leave benefits, government mandatory contribution, and payroll taxes. Establishing a solid payroll process helps employers avoid penalties for breaking Department of Labor laws using automated payroll system to makes the process simple and easy. read more »

Timekeeping Reports

Timekeeping reports are useful for HR manager or business owners to analyze and figure out important trend and help employee see where their time goes and make their work process more efficient. read more »