Using the kernel stack is preferable, especially when the examined
strings should be limited to a reasonable length.
This is a small improvement, because if we don't actually move these
strings then we don't need to own heap allocations for them during the
syscall handler function scope.
In addition to that, some kernel strings are known to be limited, like
the hostname string, for these strings we also can use FixedStringBuffer
to store and copy to and from these buffers, without using any heap
allocations at all.
This changes the default behavior, so that, by default, color codes,
hyperlinks and additional spacing are only emitted when standard
output is connected to a terminal.
The default coloring behavior can be overridden with the `--color`
option. Valid arguments for this option are: 'always', 'never' and
'auto' (default).
This is only possible if listing an entire directory, because the LibC
readdir function will return the raw inode number in each struct dirent,
therefore allowing to print it as well.
This option allows the user to change which colums are displayed
by giving comma or space separated list of column format specifiers.
A column format specifier is of the form: `COLUMN_NAME[=COLUMN_TITLE]`.
Where `COLUMN_NAME` is any of: uid, pid, ppid, pgid, sid, state, tty,
or cmd. Specifying a `COLUMN_TITLE` will change the name shown in the
column header.
`COLUMN_TITLE` may be blank. If all given column titles
are blank, the header is omitted.
Previously, it was assumed that only one filtering option, such as
`-u` or `-p` would be used at a time. With this PR, processes are now
shown if they match any of the specified filters.
Describe how to use the two new context and unified format options in
the diff utility. Also change the example comparison of two files so
they contain more lines as that is much more interesting (and useful).
This small utility is something we probably needed for a very long
time - a way to print memory statistics in an elegant manner.
This utility opens /sys/kernel/memstat, reads it and decode the values
into human readable entries, possibly even into human-readable sizes.
Use LibCore ArgsParser to parse the parameters instead of using the raw
strings from the argv (Main::Arguments) array.
Also, use indicative names for variables in the code so the utility code
is more understandable.
This man page was referenced from some places. This is mostly a
condensed version of the POSIX behavior that the system call
implementation already has, only documenting the obviously visible
errors (in source code) we do actually report.
This is a preparation before we can create a usable mechanism to use
filesystem-specific mount flags.
To keep some compatibility with userland code, LibC and LibCore mount
functions are kept being usable, but now instead of doing an "atomic"
syscall, they do multiple syscalls to perform the complete procedure of
mounting a filesystem.
The FileBackedFileSystem IntrusiveList in the VFS code is now changed to
be protected by a Mutex, because when we mount a new filesystem, we need
to check if a filesystem is already created for a given source_fd so we
do a scan for that OpenFileDescription in that list. If we fail to find
an already-created filesystem we create a new one and register it in the
list if we successfully mounted it. We use a Mutex because we might need
to initiate disk access during the filesystem creation, which will take
other mutexes in other parts of the kernel, therefore making it not
possible to take a spinlock while doing this.
This change was a long time in the making ever since we obtained sample
rate awareness in the system. Now, each client has its own sample rate,
accessible via new IPC APIs, and the device sample rate is only
accessible via the management interface. AudioServer takes care of
resampling client streams into the device sample rate. Therefore, the
main improvement introduced with this commit is full responsiveness to
sample rate changes; all open audio programs will continue to play at
correct speed with the audio resampled to the new device rate.
The immediate benefits are manifold:
- Gets rid of the legacy hardware sample rate IPC message in the
non-managing client
- Removes duplicate resampling and sample index rescaling code
everywhere
- Avoids potential sample index scaling bugs in SoundPlayer (which have
happened many times before) and fixes a sample index scaling bug in
aplay
- Removes several FIXMEs
- Reduces amount of sample copying in all applications (especially
Piano, where this is critical), improving performance
- Reduces number of resampling users, making future API changes (which
will need to happen for correct resampling to be implemented) easier
I also threw in a simple race condition fix for Piano's audio player
loop.
Previously, the `-p` option printed the path of the file being
processed before any strings for that file. The `-f` prints the file
path before each string . This matches the behavior of strings on
Linux and FreeBSD.
If more than one file is specified on the command line and the `-L`
option is used, the totals field will show the longest line
encountered; it is not a sum like the other values.
The intention for this utility is to eventually become a general-purpose
multimedia conversion tool like ffmpeg (except probably not with as many
supported formats, stream mappings and filters). For now, we can not
write any video format so the added complexity is not necessary at the
moment.
Update the Assistant manpage with instructions on how to run a command
in Terminal. Reflect this to the Assistant section in Tips-and-Tricks.
Also add instructions for launching applications with arguments.
These 2 are an actual separate types of syscalls, so let's stop using
special flags for bind mounting or re-mounting and instead let userspace
calling directly for this kind of actions.
Several differences here:
- Passing `-q` multiple times will add them together, instead of the
last one overwriting the previous ones.
- `-q` PIDs can be separated by commas as well as spaces.
- We check that the PIDs are integers while parsing the arguments,
instead of later on.
The "parse a list of things as an option" is extracted into a helper
function, because we're going to want the same logic for `-g`, `-G`,
`-p`, `-t`, `-u`, and `-U`.
- FontEditor.md
- Magnifier.md
- Presenter.md
- Terminal.md
Where an arrow is indicated by -> turn it into an actual arrow →
(U+2192 Rightwards Arrow). This looks much neater.
Inspired by Notion doing this automatically when you type "->".
I've made various corrections: fixing grammatical errors, removing
unnecessary or adding-in missing spaces. Made the style of references
to menu items more consistent. Generally I've tried to make the pages
read better. Terminal has had more adjustment than the others as its
Settings were recently changed and the man page now reflects this.
This adds information about the user owning the process to our netstat
output. We do not fully match the behaviour of Linux as we don't show
an inode information.
This program has never lived up to its original idea, and has been
broken for years (property editing, etc). It's also unmaintained and
off-by-default since forever.
At this point, Inspector is more of a maintenance burden than a feature,
so this commit removes it from the system, along with the mechanism in
Core::EventLoop that enables it.
If we decide we want the feature again in the future, it can be
reimplemented better. :^)
Without `-y`, to show the current full year you'd have to specify which
one: `cal 2023`. Adding `-y` makes it possible to see the full current
year without remembering what year we are in.
This option is also stolen from FreeBSD :^)
Additionally, validate args: prevent passing both -3 and -y at the
same time. Passing both `--three-month-mode` and `--year` to `cal`
doesn't make sense. You'd either want the one or the other.
Making it configurable in system settings :^)
The --start-day option can still overwrite this global default.
This change makes it no longer possible to use unveil: as we have
to load the Calendar config file, which might be in a dynamic location.
It's also neccessary to add `cpath` to the pledge, as opening a
nonexistent config file with Core::ConfigFile::open_for_app creates it.
Making all the other parts of the world happier :^)
Add a `--starting-day` (`-s`) option to be compatible with GNU cal,
which has a similar option. The GNU option takes allows passing either
an int or a day name. Let's do something similar using weekdays we
already have in AK/DateConstants.h.
Also add myself to the copyright header, as by now I've modified most of
the lines in this file.
...instead of putting a star `*` next to it. This makes `cal`s output
much prettier, and gets rid of one FIXME. :^)
Don't use the escape sequence from the deleted FIXME - \e[30;47m would
set the background to white and foreground to black - which presumably
wouldn't do much on a light-theme terminal. Instead use \e[7m which sets
the color as "inverted".
Every other cal implementation just highlights the current day instead
of letting you specify a custom one to highlight. It doesn't seem to be
that useful, and is currently broken - no day gets highlighted at all,
because the `target_day` global is never written to.
Moreover, this complicates parsing the arguments. This commit also fixes
parsing a case where just a year is provided to `cal` - for example `cal
2023`.
This is quite useful for userspace applications that can't cope with the
restriction, but it's still useful to impose other non-configurable
restrictions by using jails.
Add a list of system and general keyboard shortcuts as well as a list
of tips and tricks to man7 (Miscellanea). Add links to these in the
Help-index to aid discoverability for new users.
by making them `monospace` in the Help page, and bold in the manual.
This helps to quickly find out where the keyboard controls are in the
manual when skimming its contents.
The LUN.target_id parameter points to a NVMe Namespace which starts from
1 and not 0. Fix the document to reflect the same while addressing a
nvme device in the boot parameters
