Commit Graph

157 Commits

Author SHA1 Message Date
Andreas Kling
71b9ec1ae0 Kernel: Add basic process priority support.
For now, the WindowServer process will run with high priority,
while the Finalizer process will run with low priority.
Everyone else gets to be "normal".

At the moment, priority simply determines the size of your time slices.
2019-02-07 12:21:17 +01:00
Andreas Kling
5582a0a254 Kernel: When a lock is busy, donate remaining process ticks to lock holder.
Since we know who's holding the lock, and we're gonna have to yield anyway,
we can just ask the scheduler to donate any remaining ticks to that process.
2019-02-07 11:14:58 +01:00
Andreas Kling
27263b6172 Clean up LDFLAGS a bit.
While working on the ELF loader I was trying to keep binaries as simple as
possible so I could understand them easily. Now that the ELF loader is mature
and working fine, we can move closer towards ld defaults.
2019-02-06 14:48:09 +01:00
Andreas Kling
378e20c535 Kernel: Reading from a slave PTY should give EOF if master PTY is closed. 2019-02-05 12:27:32 +01:00
Andreas Kling
3accdb0e93 Handle WindowCloseRequest in FontEditor and /bin/guitest. 2019-02-05 12:07:06 +01:00
Andreas Kling
11db8c1697 Add a simple close button ("X") to windows.
Clicking the button generates a WindowCloseRequest event which the client app
then has to deal with. The default behavior for GWindow is to close() itself.

I also added a flag, GWindow::should_exit_event_loop_on_close() which does
what it sounds like it does.

This patch exposed some bugs in GWindow and GWidget teardown.
2019-02-05 10:31:37 +01:00
Andreas Kling
d0078b6574 Clock: Turns the clock window from guitest2 into a separate program.
We can't not have a desktop clock app. :^)
2019-02-05 09:44:13 +01:00
Andreas Kling
41567c5bb9 Show the amount of memory in GraphicsBitmaps in /bin/top.
This seems like an extremely relevant metric to track.
2019-02-05 09:27:27 +01:00
Andreas Kling
b1e054ffe8 Rename LizaBold to LizaRegular and LizaBlack to LizaBold.
LizaRegular is quickly becoming my favorite bitmap font. It's so pretty :^)
2019-02-05 09:08:25 +01:00
Andreas Kling
d7307c3119 Kernel: Ignore SIGCHLD by default.
Also use an enum for the rather-confusing return value in dispatch_signal().
I will go through the rest of the signals and set them up with the
appropriate default dispositions at some other point.
2019-02-04 14:06:38 +01:00
Andreas Kling
ba6ffea03c Kernel: Process should send SIGCHLD to its parent when it dies. 2019-02-04 13:30:03 +01:00
Andreas Kling
7fe600f250 LibGUI: Use LightGray as the base UI color.
This feels nicely reminiscent of the gap in time between Win3.11 and Win95,
one of my favorite eras in UI look-and-feel.
2019-02-04 11:53:26 +01:00
Andreas Kling
c0cffe1134 Add a /bin/top program for process table monitoring.
It automagically computes %CPU usage based on the number of times a process
has been scheduled between samples. The colonel task is used as idle timer.
This is pretty cool. :^)
2019-02-04 10:28:12 +01:00
Andreas Kling
31f44481f3 Add /dev/{stdin,stdout,stderr} as symlinks to /proc/self/fd/{0,1,2}
Also change /bin/cat to open /dev/stdin if no arguments are provided.
2019-02-03 12:38:03 +01:00
Andreas Kling
0c9a2b1430 Kernel: Oops, I mixed up st_dev and st_rdev in struct stat. 2019-02-03 06:23:10 +01:00
Andreas Kling
c2adfd0e2d LibC: Implement various things to get GNU bc building and running.
Looks like that's all we needed, and bc now runs. :^)
2019-02-03 04:32:31 +01:00
Andreas Kling
dd931f136e guitest2: Stop showing the font test window by default. 2019-02-03 03:36:10 +01:00
Andreas Kling
e2f27aa7b5 Userland: Make /bin/date pretty-print the date, too. 2019-02-03 02:47:37 +01:00
Andreas Kling
10fde0d707 Userland: Pretty-print modification times in /bin/ls. 2019-02-03 02:14:41 +01:00
Andreas Kling
6fc3c38324 Start working on a simple graphical font editor.
Editing fonts by editing text files is really slow and boring.
A simple font editor seems like a good way to take LibGUI for a spin.
2019-02-02 08:07:06 +01:00
Andreas Kling
5e0b7f1a56 Add basic automatic dependency management to Makefiles. 2019-02-02 04:41:59 +01:00
Andreas Kling
9153666e72 Userland: /bin/ls shouldn't display inode numbers by default.
Added the -i option to ls which turns on inode number display.
2019-01-31 17:34:24 +01:00
Andreas Kling
ffab6897aa Big, possibly complete sweep of naming changes. 2019-01-31 17:31:23 +01:00
Andreas Kling
e04ba0a83c Add a simple clock window to guitest2.
This is driven by mousedown events right now, since there are no timers.
2019-01-31 16:37:43 +01:00
Andreas Kling
c4fce9b3f9 Make stat() work on device files again.
FileDescriptor will now keep a pointer to the original inode even after
opening it resolves to a character device.

Fixed up /bin/ls to display major and minor device numbers instead of size
for device files.
2019-01-31 05:05:57 +01:00
Andreas Kling
37ab7b7a8c LibGUI: Implement destroying individual windows without exiting the process. 2019-01-30 20:03:52 +01:00
Andreas Kling
e9b948103d Add a /dev/pts filesystem and make PTY allocation dynamic.
You can now open as many PTY pairs as you like. Well, it's actually capped
at 8 for now, but it's just a constant and trivial to change.

Unregistering a PTY pair is untested because I didn't want to start
mucking with that in Terminal right now.
2019-01-30 00:49:20 +01:00
Andreas Kling
c30e2c8d44 Implement basic chmod() syscall and /bin/chmod helper.
Only raw octal modes are supported right now.
This patch also changes mode_t from 32-bit to 16-bit to match the on-disk
type used by Ext2FS.

I also ran into EPERM being errno=0 which was confusing, so I inserted an
ESUCCESS in its place.
2019-01-29 04:55:08 +01:00
Andreas Kling
7455f5ea42 Expose the kernel log buffer through /proc/dmesg.
Also add a /bin/dmesg program for convenience.
2019-01-28 22:40:55 +01:00
Andreas Kling
c95228b128 Add support for removing directories.
It's really only supported in Ext2FS since SynthFS doesn't really want you
mucking around with its files. This is pretty neat though :^)

I ran into some trouble with HashMap while working on this but opted to work
around it and leave that for a separate investigation.
2019-01-28 04:16:01 +01:00
Andreas Kling
35c06f1520 LibGUI: More work on GCheckBox.
- Make it track the mouse cursor just like GButton does so that changes only
  get committed if the mouseup event happens while inside the widget rect.

- Draw a focus rect around the box when appropriate.

- When focused, support toggling the checked state with the space bar.
2019-01-27 20:22:06 +01:00
Andreas Kling
c4c475b49d /bin/cp: Handle partial write() case. 2019-01-27 10:04:53 +01:00
Andreas Kling
15fad649ea Userland: Make a simple /bin/cp for copying files. 2019-01-27 07:18:26 +01:00
Andreas Kling
de2423de5f LibGUI: Flesh out focus implementation and more GTextBox work. 2019-01-26 11:24:16 +01:00
Andreas Kling
d72575d196 LibGUI: Start bringing up GTextBox in the standalone world. 2019-01-26 06:39:13 +01:00
Andreas Kling
7cf3c7461c Refactor GUI rendering model to be two-phased.
Instead of clients painting whenever they feel like it, we now ask that they
paint in response to a paint message.

After finishing painting, clients notify the WindowServer about the rect(s)
they painted into and then flush eventually happens, etc.

This stuff leaves us with a lot of badly named things. Need to fix that.
2019-01-26 05:20:32 +01:00
Andreas Kling
a54848f451 Let's not auto-start guitest. guitest2 is so much more useful. 2019-01-25 15:52:55 +01:00
Andreas Kling
6e5db34b2e sh: Discard the current line on interrupt. 2019-01-25 15:49:54 +01:00
Andreas Kling
92c14ba887 Terminal: Support VKILL and VERASE. Also ignore null characters. 2019-01-25 15:34:21 +01:00
Andreas Kling
6cc1a9d90a sh: Support basic backspacing on the command line.
It's weird that I didn't do this sooner. I don't know how many tims
I've had to retype a misspelled command. :^)
2019-01-25 15:11:56 +01:00
Andreas Kling
5adaeeaa3b Terminal: Support setting the window title using Xterm escape sequences.
Use this in the /bin/sh prompt to keep the window title in sync with the
shell's working directory. :^)
2019-01-25 05:52:16 +01:00
Andreas Kling
86eae0f8df Let userland retain the window backing store while drawing into it.
To start painting, call:
gui$get_window_backing_store()

Then finish up with:
gui$release_window_backing_store()

Process will retain the underlying GraphicsBitmap behind the scenes.
This fixes racing between the WindowServer and GUI clients.

This patch also adds a WSWindowLocker that is exactly what it sounds like.
2019-01-24 23:44:19 +01:00
Andreas Kling
8d36c8f0d8 LibC: Tweak execvp() and execve() prototypes. 2019-01-23 17:09:00 +01:00
Andreas Kling
bda0c935c2 Add unlink() syscall and /bin/rm.
This patch adds most of the plumbing for working file deletion in Ext2FS.
Directory entries are removed and inode link counts updated.
We don't yet update the inode or block bitmaps, I will do that separately.
2019-01-22 07:03:44 +01:00
Andreas Kling
f70136a324 Kernel: Support open() with O_CREAT.
It's now possible to create zero-length files! :^)
Also hook up the new functionality in /bin/touch.
2019-01-22 00:58:56 +01:00
Andreas Kling
6127d33cee guitest2: Add a launcher button for guitest. 2019-01-21 02:56:25 +01:00
Andreas Kling
786b903d62 WindowServer: Don't invalidate already frontmost window for moving to front. 2019-01-21 02:19:08 +01:00
Andreas Kling
d66b0f7dd8 LibGUI: Mass coding style fixes. 2019-01-21 00:54:35 +01:00
Andreas Kling
6c4f1bad09 guitest2: Add a simple launcher so I can easily spawn more Terminals.
Also update GButton coding style.
2019-01-21 00:31:48 +01:00
Andreas Kling
ea6678b7b3 LibGUI: Hook up GWindow event dispatch for paint and mouse events. 2019-01-20 07:03:38 +01:00