Created Todo (markdown)

Todo.md

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+# Compositor functionality
+* Alt+Tab keyboard window switching (with previews)
+* Advertise window titles + icons
+* New panel with window list
+* Rewrite client-server protocol
+  * New resize handshake
+  * Only sane event path; fix window creation (fix "wait for reply" commands)
+  * Better packet structs for events (window.left? ew!)
+
+# Japanese / i18n updates
+* IME
+* Support for multibyte/wide characters in rline and terminal linebuffer
+* JIS keyboard mapping in the compositor (config file???)
+  * Applications shouldn't care.
+  * What to do with with special characters?
+
+# Multiarch / Ports
+
+* Split out x86 / PC-specific bits into new arch/ directories
+* Fix up uses of explicitly sized types where possible
+* x86-64 port
+  * Good for verification of multi-arch readiness
+  * Much easier to develop for than ARM port
+* ARMv6 port is underway
+
+# Cleanup and POSIX expansion
+
+* Rewrite underlying process model
+  * `task`/`process` split should match architecture dependency split
+  * Better allocation management, process tracking
+  * Cleanup is a pain right now - we need to stop eating processes that finish with parents that might want their statuses.
+  * Sleeping, wait queues, and IO polling/select depend on some rewriting
+
+# New EXT2 drivers
+
+* The EXT2 drivers are poorly written, they need a complete rewrite
+* Allow for multiple EXT2 instances
+* Operate on block devices rather than directly with ATA drives
+  * Allows for effortless ramdisk implementation with same code
+  * Will make MMC port a lot easier for RPi
+
+# TODO as of November, 2012
+
+* force a build run
+
+* ~~Integrate Cairo into build toolchain~~
+  * autogen means extra effort needed
+  * required to ship with new compositor
+  * this has been done for a while
+* ~~Fix static initializers in C++~~
+  * The best method for this is probably going to be writing a dynamic loader, so...
+  * this has been done for a while
+* Write a dynamic loader
+  * as of March 2014, finally starting to work on this
+* Pretty much everything below
+
+# TODO for 0.4.0 Distribution Release
+
+* User Interface
+  * ~~Graphical Login~~
+  * More applications
+* ~~Working boot on real hardware~~
+  * Confirmed working on Mini 9 with hard disk boot
+
+# TODO for 0.5.0
+
+* CD support
+  * Boot from "CD"
+  * Distribute with Grub
+  * CD image generator in-repo
+* Stable Harddisk writes
+  * Screenshot functionality
+  * Attempt an installer?
+  * ATA writes in general seem to be stable, work on EXT2 FS write support
+
+# Doc Revamp
+
+* ~~Get rid of old, outdated TeX/PDF manual~~
+* Build a modern doxygen-powered documentation system for
+  kernel functions for use by kernel developers.
+  * Tried to do this, doxygen got very angry - might look at it again later?
+* Also include doxygen documentation for included libraries
+  (lib/graphics, etc.)
+
+# TODO for Microkernel Launch (0.5.0?)
+
+* ~~Replace ramdisks with ELF service executables~~
+  * Boot with multiple modules = boot with multiple services.
+  * vfs.srv, for example
+  * replace "services" with "modules" and this is done...
+* VFS as a service.
+  * It would be super awesome to write this in a language that is more flexible.
+  * Actual file system drivers as separate modules, or what?
+* Service bindings
+  * Essentially, a system call interface to discovering available services.
+  * `require_service(...)` system call for usable errors when a service is missing?
+    * Do module dependencies count? That's in...
+* ~~Deprecate old graphics applications~~
+  * ~~And rename the windowed versions.~~
+* ~~Environment variables~~
+  * Support them in general
+  * Push things like graphics parameters to environment variables
+* Integrate service-based VFS into C library
+  * Which probably means integrating shmem services into the C library
+* Services in a separate ring
+  * Compositor as a service
+  * Compositor shmem names integrated with service discovery
+* For VFS, need better IPC for cross-process read/write/info/readdir/etc. calls
+
+## Service Modules (aka "Services")
+
+* `vfs.srv` The virtual file system server. (required to provide file system endpoints)
+  * Keeping as core for now, possibly a module in the new revision? VFS is kinda important...
+* `ext2.srv` Ext2 file system server. (provides `/`)
+  * module
+* `ata.srv` ATA disk access server. (provides `/dev/hd*`)
+  * module
+* `compositor.srv` The window compositing server. (provides shmem regions)
+  * staying in userspace
+* `ps2_hid.srv` The keyboard/mouse server. (provides `/dev/input/ps2/*`)
+  * two modules: `ps2kbd` and `ps2mouse`, and they provide `/dev/kbd` and `/dev/mouse` respectively.
+  * I'll look into the other dev nodes later...
+* `serial.srv` UART serial communication server (provides `/dev/ttyS*`)
+  * module: `serial`
+
+### Future Servers
+
+* `usb.srv` Generic USB device server (provides `/dev/input/usb/*`)
+* `proc.srv` Process information server (provides `/dev/proc`; uses lots of kernel bindings)
+* `net.srv` Networking server (provides `/dev/net`)
+* `gfx.srv` Block-access graphics server (provides `/dev/fb*`)
+  * This is a module at the moment; might be abandoning a lot of these service ideas...
+
+## Things that are not services
+
+* ELF support is not a service
+
+# TODO as of Septemember 2012
+
+## C++
+* ~~Build with C++ support~~
+
+## Terminal Fixes ##
+* Mouse features; mouse support in windowed mode
+* ~~Tab completion in shell (this is mostly a shell-specific thing)~~
+
+## Windowing System ##
+* ~~Graphical Login Manager~~
+* Finish GUI toolkit
+* File manager app
+
+## Harddisk Drive Extras
+* ~~VFS support is still almost entirely non-existent~~
+  * VFS works pretty nicely.
+* Write support for EXT2 is still sketchy
+  * This is still true as of March 2014 - actually, it's worse, write support is temporarily gone
+* Still lacking fast read/write for IDE - needs more DMA!
+  * Still true in 2014
+
+## Toolchain
+* ~~Finish GCC port~~
+  * Finished in April/May, 2013
+* ~~Port ncurses/vim/etc.~~
+  * This was compleated circa March 2013
+  * Native development requires good tools.
+  * Also port genext2fs.
+* ~~Directory support needs to be better integrated into the C library still~~
+  * `readdir` and family have been integrated
+
+## Microkernal Readiness
+
+* ~~Deprecate ramdisks~~ **replaced with new ramdisk module, works better**
+  * Haven't used them in development in over a year
+  * Not useful anywhere else due to their limiting sizes
+  * As of March 2014, ramdisks have been reimplemented (again) in an actual ramdisk *module*
+* ~~implement module execution~~
+  * Instead of loading a ramdisk, modules should be standard binaries
+    * Actually, both are supported now, so that's done.
+  * The binaries will be executed in a new "service mode"
+    * This was isn't going to happen, at least not for kernel modules.
+* Implement "servicespace"
+  * Userspace, but at a different ring
+  * Special access features, like extended port access
+  * Higher priority scheduling
+
+### Services to Implement
+
+* PCI Service
+* Graphics Management Service
+* Compositor as a service?
+  * Technically, it already is.
+* Virtual File System Service
+
+## Old I/O goals
+
+### I/O
+* ~~`/dev` file system~~
+* ~~`/dev/fbN` and `/dev/ttyN` for virtual framebuffer terminals and graphics~~
+  * Framebuffers still need work to actually support mapping, but can provide size/address information via `ioctl`.
+* ~~`/dev/ttyS0` for serial I/O~~
+* SATA read/write drivers (`/dev/sdaN`)
+* ~~`/dev/ramdisk` (read-only)~~
+  * Actually in `/dev/ramN` now
+* ~~EXT2 drivers should operate on a `/dev/*` file~~
+  * ~~Working on this with new ext2 drivers~~
+    * The new driver is in the current strawberry head
+  * ~~Need better block device handling; \*64() operations~~
+    * Handled in the block device by doing extra reads, read-before-write operations
+* ~~Mounting of `/dev/*` files using a filesystem handler~~
+  * A workaround is provided for `/dev` so that mounted nodes can be listed
+  * A general solution is being worked on in the new VFS
+* ~~VFS tree~~
+