Roadmap
=======

Plans for soon
--------------

* Write device drivers : keyboard, FAT (or EXT2 ?)
* Work on userland : init, terminal emulator, shell
* GUI server (with help from kernel for framebuffer management ?)

Things to design
----------------

* Reclaiming physical memory :
  - Freeing some cached stuff, ie swapping pages from mmap regions
  - Swapping pages from processes non-mmap regions (ie real data regions)
* Better handling of errors (rather than panicing) ; userspace apps should not
  have the possibility of crashing the system
* How does a process transmit information (such as environment, arguments, file
  descriptors) to its children ?
* How do we do stream-like IO on files ? (ie how do we implement the append
  access mode and non-position-dependant read/write calls & seek call)
* Better error reporting for system calls that fail

Things not sure
---------------

* VFS thread safety : is the design correct ? (probably)
* Cache architecture (called *pager*, after 4.4BSD terminology)
* Not enough tests!

Plans for the later future
--------------------------

* Define a format for "packages", i.e. read-only filesystem images used for
  adding system components or apps to the OS ; make sure to implement it in a way
  that does not waste memory
* Module system for extending the kernel In userspace
* simple Scheme-like scripting language
* POSIX compatibility layer, self-hosting OS
* The obvious stuff ;-)