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Roadmap

Kernel Issues

  • fcntl operations are redirected using inode_t.fop.fcntl operator. However this operation must be on the made over the fstream_t structure.
  • Create a test to check fsnode_t and inode_t are properly scavenged.
  • Blocks inodes are never synchronized after a write operation. only the cached page are marked as dirty.
  • Some fixes on design must be done for the vfs_mkdev and vfs_mknod procedures.
  • Create a complete but generic test script to provide to cli_fs in order to test thoroughly a new file-system driver.
  • Ensure tool-chain script is reliable
  • ./disto.sh setup must copy headers files before compiling libc.

Big Epics

  • Raspberry PI handling: requires an arm tool-chain. UART driver is easy enough and can be use to replace serial of the i386 arch for kernel logging. However video and USB drivers are mandatory to make some real progress.
  • x86_64, long mode: Write a port for long mode.
  • User: Kora is not multi-user yet. @later
  • Memory swap: Or any handling of a lack of memory pages. @later
  • IO Block layer: We need to design the handling of write asynchronously. @later
  • Desktop: The project is to run /bin/login at startup. It's run as system user and wait for user selection and authentication. The role is to create new instances of bin/desktop using the logon user. Both program need to exchange the ownership of all devices that constitute a seat (/dev/fb0, /dev/kdb, /dev/mse...)

Others

FS CLI This is a tool made to be compiled with both kernel vfs module and fs drivers to be able to test both on an hosted environment using hard disc images.

NET CLI This tool is build on the same principle as FS CLI but is made to test the network stack. One major gain is that it can simulate a full network of host with virtual link and Ethernet cards. However interaction with this tool is complex and yet quite limited.

SND This tool is a proof-of-concept program used to transform and mix wave audio data for the future kernel sound system. It try to use host audio API, but I discover that playing audio facilities are really limited on current systems. My goal is to provide sound streaming through a pipe file.

Documentation

  • Overview

Lgfx issues

  • Set a background color for gfx_clr_blend and gfx_bkgd_blend.
  • Make usage of source clip on gfx_blit and gfx_blit_scale.
  • Resolve issue with frame invalidation and region invalidation.
  • Remove mandatory usage of periodical timer
  • Add new keyboard layout using external data file.
  • Handle separation between framebuffer and event inputs.
  • Handle multi pipe event inputs (for /dev/kdb, /dev/mse and service pipe...)
  • Handle packaging build (for Debian .deb or windows .zip or others .tar)

Desktop issues

  • Create a message queue service for client application.
  • Fix issue with zlib and test freetype.

Milestones

Version 0.1 of KoraOS

  • Signal is supported
  • FAT or EXT2 support write operations.
  • TCP sockets client (wget)
  • Graphical file browser application
  • Graphical text editor application

Version 1.0 of KoraOS

  • Port of binutils, gcc, make, git, vim, python
  • Full FAT12 / FAT16 / FAT32 / EXT2 drivers
  • ATA drivers with DMA support
  • VFS scavenging
  • Task cleaning
  • Fully working ps utilities