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Andreas Kling d6d7d11590 Kernel: Cache Custody objects (weakly) to avoid expensive reconstruction
This patch adds a (spinlock-protected) custody cache. It's a simple
intrusive list containing all currently live custody objects.

This allows us to re-use existing custodies instead of creating them
again and again.

This gives a pretty decent performance improvement on "find /" :^)
2021-08-15 23:30:52 +02:00
.github CI: Disable variable substitution on input to the twitter script 2021-08-15 23:21:20 +04:30
AK AK: Add adopt_nonnull_own_or_enomem 2021-08-15 15:41:02 +02:00
Base Kernel+Userland: Remove chroot functionality 2021-08-15 12:44:35 +02:00
Documentation Documentation: Add genext2fs package for BuildInstructions 2021-08-15 15:29:03 +02:00
Kernel Kernel: Cache Custody objects (weakly) to avoid expensive reconstruction 2021-08-15 23:30:52 +02:00
Meta Meta: Disable printing frame args when debugging the kernel with gdb 2021-08-14 21:18:05 +02:00
Ports Ports: Add libsixel 2021-08-15 19:48:11 +01:00
Tests LibRegex: Implement and use a REPEAT operation for bytecode repetition 2021-08-15 11:43:45 +01:00
Toolchain Toolchain: Make Kernel/API/ headers available during toolchain build 2021-08-14 20:25:56 +02:00
Userland LibGL: Implement glColorMask 2021-08-15 19:04:10 +01:00
.clang-format Meta: Update .clang-format to not indent nested namespaces 2020-03-14 10:10:21 +01:00
.gitattributes Meta: Mark the other image file formats as binary in .gitattributes 2021-05-20 08:04:28 +02:00
.gitignore Meta: Add run-local.sh 2021-08-07 11:47:07 +02:00
.mailmap Meta: Add my emails to .mailmap 2021-06-30 00:59:23 +04:30
.pre-commit-config.yaml Meta: Add a post-commit commit message linter hook 2021-05-02 16:28:01 +02:00
.prettierignore LibJS: Correct behaviour of direct vs. indirect eval 2021-06-23 09:38:33 +01:00
.prettierrc Meta: Move prettier config files to the root of the repository 2020-08-24 18:21:33 +02:00
azure-pipelines.yml CI: Add a hello world step to azure-pipelines.yml so it stops failing 2021-08-14 22:43:34 +01:00
CMakeLists.txt Meta: Enable nonnull-compare warnings 2021-08-12 21:10:44 +02:00
CONTRIBUTING.md Meta: Update CONTRIBUTING.md 2021-07-09 10:18:24 +02:00
LICENSE Everywhere: Use "the SerenityOS developers." in copyright headers 2021-04-29 00:59:26 +02:00
README.md Meta: Add sin-ack to the contributors list :^) 2021-08-15 14:59:28 +01:00

SerenityOS

Graphical Unix-like operating system for x86 computers.

Build status Fuzzing Status Discord

About

SerenityOS is a love letter to '90s user interfaces with a custom Unix-like core. It flatters with sincerity by stealing beautiful ideas from various other systems.

Roughly speaking, the goal is a marriage between the aesthetic of late-1990s productivity software and the power-user accessibility of late-2000s *nix. This is a system by us, for us, based on the things we like.

I (Andreas) regularly post raw hacking sessions and demos on my YouTube channel.

Sometimes I write about the system on my github.io blog.

I'm also on Patreon and GitHub Sponsors if you would like to show some support that way.

Screenshot

Screenshot as of 0f85753.png

Kernel features

  • x86 (32-bit) and x86_64 (64-bit) kernel with pre-emptive multi-threading
  • Hardware protections (SMEP, SMAP, UMIP, NX, WP, TSD, ...)
  • IPv4 stack with ARP, TCP, UDP and ICMP protocols
  • ext2 filesystem
  • POSIX signals
  • Purgeable memory
  • /proc filesystem
  • Pseudoterminals (with /dev/pts filesystem)
  • Filesystem notifications
  • CPU and memory profiling
  • SoundBlaster 16 driver
  • VMWare/QEMU mouse integration

System services

  • Launch/session daemon (SystemServer)
  • Compositing window server (WindowServer)
  • Text console manager (TTYServer)
  • DNS client (LookupServer)
  • Network protocols server (RequestServer and WebSocket)
  • Software-mixing sound daemon (AudioServer)
  • Desktop notifications (NotificationServer)
  • HTTP server (WebServer)
  • Telnet server (TelnetServer)
  • DHCP client (DHCPClient)

Libraries

  • C++ templates and containers (AK)
  • Event loop and utilities (LibCore)
  • 2D graphics library (LibGfx)
  • OpenGL 1.x compatible library (LibGL)
  • GUI toolkit (LibGUI)
  • Cross-process communication library (LibIPC)
  • HTML/CSS engine (LibWeb)
  • JavaScript engine (LibJS)
  • Markdown (LibMarkdown)
  • Audio (LibAudio)
  • PCI database (LibPCIDB)
  • Terminal emulation (LibVT)
  • Out-of-process network protocol I/O (LibProtocol)
  • Mathematical functions (LibM)
  • ELF file handling (LibELF)
  • POSIX threading (LibPthread)
  • Higher-level threading (LibThreading)
  • Transport Layer Security (LibTLS)
  • HTTP and HTTPS (LibHTTP)
  • IMAP (LibIMAP)

Userland features

  • Unix-like libc and userland
  • Shell with pipes and I/O redirection
  • On-line help system (both terminal and GUI variants)
  • Web browser (Browser)
  • C++ IDE (HackStudio)
  • IRC client
  • Desktop synthesizer (Piano)
  • E-mail client (Mail)
  • Various desktop apps & games
  • Color themes

How do I read the documentation?

Man pages are available online at man.serenityos.org. These pages are generated from the Markdown source files in Base/usr/share/man and updated automatically.

When running SerenityOS you can use man for the terminal interface, or help for the GUI.

How do I build and run this?

See the SerenityOS build instructions

Before opening an issue

Please see the issue policy.

FAQ: Frequently Asked Questions

Get in touch

Join our Discord server: SerenityOS Discord

Author

Contributors

(And many more!) The people listed above have landed more than 100 commits in the project. :^)

License

SerenityOS is licensed under a 2-clause BSD license.