Fuchsia overview – “Fuchsia is not a science experiment”

栏目: IT技术 · 发布时间: 4年前

内容简介:Fuchsia is an open-source operating system designed from the ground up for security and updatability.Security and privacy are woven deeply into the architecture of Fuchsia. The basic building blocks of Fuchsia, the kernel primitives, are exposed to applic

Fuchsia is an open-source operating system designed from the ground up for security and updatability.

Fuchsia is…

Fuchsia is designed for security and privacy

Security and privacy are woven deeply into the architecture of Fuchsia. The basic building blocks of Fuchsia, the kernel primitives, are exposed to applications as object-capabilities, which means that applications running on Fuchsia have no ambient authority: applications can interact only with the objects to which they have been granted access explicitly.

Software is delivered in hermetic packages and everything is sandboxed, which means all software that runs on the system, including applications and system components, receives the least privilege it needs to perform its job and gains access only to the information it needs to know.

Fuchsia is designed to be updatable

Fuchsia works by combining components delivered in packages. Fuchsia packages are designed to be updated independently or even delivered ephemerally, which means packages are designed to come and go from the device as needed and the software is always up-to-date, like a Web page.

Fuchsia aims to provide drivers with a binary-stable interface. In the future, drivers compiled for one version of Fuchsia will continue to work in future versions of Fuchsia without needing to be modified or even recompiled. This approach means that Fuchsia devices will be able to update to newer versions of Fuchsia seamlessly while keeping their existing drivers.

Fuchsia is designed to be language and runtime agnostic

Fuchsia currently supports a variety of languages and runtimes, including C++, Rust, Flutter, and Web. Fuchsia is designed to let developers bring their own runtime, which means a developer can use a variety of languages or runtimes without needing to change Fuchsia itself.

Applications interact with each other and the system using message passing, which means any application that can format messages appropriately can participate fully in the system regardless of its language or runtime. Fuchsia is defined by these protocols, much like the Internet is defined by its protocols rather than a particular client or server implementation.

Fuchsia is designed for performance

Fuchsia makes heavy use of asynchronous communication, which reduces latency by letting the sender proceed without waiting for the receiver. Fuchsia optimizes memory use by avoiding garbage collection in the core operating system, which helps to minimize memory requirements to achieve equivalent performance.

Fuchsia is open source

Fuchsia is built in the open using BSD/MIT-style open source licenses. Fuchsia has an inclusive community that welcomes high-quality, well-tested contributions from everyone.

Fuchsia is not…

Fuchsia is not based on Linux

Fuchsia does not use the Linux kernel. Instead, Fuchsia has its own kernel, Zircon, which evolved from LittleKernel. Fuchsia implements some, but not all, of the POSIX specification as a library on top of the underlying kernel primitives, which focus on secure message passing and memory management. Many core system services, such as file systems and networking, run outside the kernel in least-privilege, need-to-know sandboxes.

Fuchsia is not a microkernel

Although Fuchsia applies many of the concepts popularized by microkernels, Fuchsia does not strive for minimality. For example, Fuchsia has over 170 syscalls, which is vastly more than a typical microkernel. Instead of minimality, the system architecture is guided by practical concerns about security, privacy, and performance. As a result, Fuchsia has a pragmatic, message-passing kernel.

Fuchsia is not a user experience

Fuchsia is not tied to a specific end-user experience. Instead, Fuchsia is general purpose and contains the building blocks necessary for creating a wide variety of high-quality user experiences.

Fuchsia does have a developer experience, which lets developers write software for Fuchsia via SDKs and tools.

Fuchsia is not a science experiment

Fuchsia's goal is to power production devices and products used for business-critical applications. As such, Fuchsia is not a playground for experimental operating system concepts. Instead, the platform roadmap is driven by practical use cases arising from partner and product needs.


以上就是本文的全部内容,希望本文的内容对大家的学习或者工作能带来一定的帮助,也希望大家多多支持 码农网

查看所有标签

猜你喜欢:

本站部分资源来源于网络,本站转载出于传递更多信息之目的,版权归原作者或者来源机构所有,如转载稿涉及版权问题,请联系我们

python学习手册(原书第5版)

python学习手册(原书第5版)

马克·卢茨 / 机械工业出版社 / 2018-10 / 219

如果你想动手编写高效、高质量并且很容易与其他语言和工具集成的代码,本书将快速地帮助你利用Python提高效率。本书基于Python专家的流程培训课程编写,内容通俗易懂。本书包含很多注释的例子和插图,以帮助你开始使用Python2.7和3.3。每章都包含关于Python语言的重要组成部分的一节课。本书主要内容:了解Python的主要内置对象类型,如数字、列表和字典;创建和处理对象的Python语句,......一起来看看 《python学习手册(原书第5版)》 这本书的介绍吧!

XML 在线格式化
XML 在线格式化

在线 XML 格式化压缩工具

RGB CMYK 转换工具
RGB CMYK 转换工具

RGB CMYK 互转工具

HSV CMYK 转换工具
HSV CMYK 转换工具

HSV CMYK互换工具