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Right now the TD and QH descriptor pools look to be susceptible
to a race condition in the event they are accessed simultaneously
by separate threads making USB transfers. This fix does not seem to
add any noticeable overhead.
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That's the standard naming convention, but I didn't follow it when
originally creating LibDSP and nobody corrected me, so here I am one
year later :^)
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The automatic nomenclature change for IPC sockets got this one wrong.
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Various changes are needed to support this:
- The directory is created by Core::Account on login (and located in
/tmp).
- Service's sockets are now deleted on exit (to allow re-creation)
- SystemServer needs to handle SIGTERM to correctly destroy services.
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The returned value of `waitpid` is the PID of the process and not the
exit code.
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This avoids lag spikes when undoing/redoing large chunks of HTML/CSS
with the HTML preview open. This had been bugging me when reducing
LibWeb issues in the text editor. The debounce timeout is 100ms
so the delay should not be noticeable.
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This is a simple helper to debounce a function call, such as
an event handler. It avoids the function being called until
the event as settled down (i.e. after the timeout).
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IDEChannel which is an ATAPort derived class holded a NonnullRefPtr to a
parent IDEController, although we can easily defer the usage of it to
not be in the IDEChannel code at all, so it allows to keep NonnullRefPtr
to the parent ATAController in the ATAPort base class and only there.
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This abstraction layer is mainly for ATA ports (AHCI ports, IDE ports).
The goal is to create a convenient and flexible framework so it's
possible to expand to support other types of controller (e.g. Intel PIIX
and ICH IDE controllers) and to abstract operations that are possible on
each component.
Currently only the ATA IDE code is affected by this, making it much
cleaner and readable - the ATA bus mastering code is moved to the
ATAPort code so more implementations in the near future can take
advantage of such functionality easily.
In addition to that, the hierarchy of the ATA IDE code resembles more of
the SATA AHCI code now, which means the IDEChannel class is solely
responsible for getting interrupts, passing them for further processing
in the ATAPort code to take care of the rest of the handling logic.
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This simplifies the flow of how things work currently and is a step for
more improvements in the next commits.
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We do that to increase clarity of the major and secondary components in
the subsystem. To ensure it's even more understandable, we rename the
files to better represent the class within them and to remove redundancy
in the name.
Also, some includes are removed from the general components of the ATA
components' classes.
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This short-lived utility was essential when we had to use the ioctl
interface to fetch the EDID from a DisplayConnector, but now that we can
simply read it from SysFS, this utility is no longer needed and can be
removed.
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We are able to read the EDID from SysFS, therefore there's no need to
provide this ioctl on a DisplayConnector anymore.
Also, now we can simply require the video pledge to be set before doing
any ioctl on a DisplayConnector.
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The EDID blob is now exposed in the SysFS for each DisplayConnector, so
we don't need to use the ioctl interface anymore to read the EDID.
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It is starting to get a little messy with how each device can try to add
or remove itself to either /sys/dev/block or /sys/dev/char directories.
To better do this, we introduce 4 virtual methods to take care of that,
so until we ensure all nodes in /sys/dev/block and /sys/dev/char are
actual symlinks, we allow the Device base class to call virtual methods
upon insertion or before being destroying, so it add itself elegantly to
either of these directories or remove itself when needed.
For special cases where we need to create symlinks, we have two virtual
methods to be called otherwise to do almost the same thing mentioned
before, but to use symlinks instead.
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Under normal conditions (when mounting SysFS in /sys), there will be a
new directory in the /sys/devices directory called "graphics".
For now, under that directory there will be only a sub-directory called
"connectors" which will contain all DisplayConnectors' details, each in
its own sub-directory too, distinguished in naming with its minor
number.
Therefore, /sys/devices/graphics/connectors/MINOR_NUMBER/ will contain:
- General device attributes such as mutable_mode_setting_capable,
double_buffering_capable, flush_support, partial_flush_support and
refresh_rate_support. These values are exposed in the ioctl interface
of the DisplayConnector class too, but these can be useful later on
for command line utilities that want/need to expose these basic
settings.
- The EDID blob, simply named "edid". This will help userspace to fetch
the edid without the need of using the ioctl interface later on.
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I tested the grub image under VirtualBox and it appeared that the image
didn't have pci.ids file included in the /res directory. In that case it
would be expected that lspci can still function correctly if the -n
parameter is passed, but then the unveil syscall failed because the file
didn't exist.
To cope with this, we should allow lspci to work without the pci.ids
file being present at the filesystem, so let's not unveil this file if
the -n parameter is passed.
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This is essentially a no-op since we have our replacement linker script,
but if we can skip over that entirely, why not?
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This additionally adds some compatibility code to redirect linking
attempts for LibPthread to LibC instead.
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This removes a bit of noise from the following patches, where we will
move the `pthread.h` header out of the `LibPthread` directory.
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This allows lines moved by Ctrl+Shift+[Up, Down] to be registered as a
command, i.e. cancellable by Ctrl+Z.
This patch also introduces the usage of TextDocument::[take,
insert]_line. Those functions forward changes to the visual lines and
then avoid some data mismatch.
Co-authored-by: Jorropo <jorropo.pgm@gmail.com>
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This method is similar in all respects to remove_line except that it
returns the removed line.
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Affected classes are children of TextDocumentUndoCommand:
- InsertTextCommand
- RemoveTextCommand
- ReplaceAllTextCommand
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This allows to invert the direction of a VerticalDirection.
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This is a start to properly letting us cross-compile Lagom where both
the Tools and the BUILD_LAGOM=ON build are using Lagom CMakeLists.
The initial cut allows an Android build to succeed, more or less.
But there are issues with namespace clashes when using FetchContent with
this approach.
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Most changes are around user and group management, which are exposed in
the Android NDK differently than other Unices.
We require version 30 for memfd_create, version 28 for posix_spawn, and
so on. It's possible a shim for memfd_create could be used, but since
Google is mandating new apps use API level 30 as of Nov 2022, this seems
suitable.
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We can just infer the favicon, fonts and palette from the location of
the /res folder, no need to ask each of the resources one by one.
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These two represent different things, and should be handled by different
methods.
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Also sort the entries alphabetically while we're here :^)
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Turns out HashTable::contains() doesn't solely use hash() for equality
checks, so the lack of a proper equals() implementation broke the check
in convert_header_names_to_a_sorted_lowercase_set() and caused duplicate
entries in header_names_set.
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The Fetch spec unfortunately will cause a name clash between the Request
concept and the Request JS object - both cannot live in the Web::Fetch
namespace, and WrapperGenerator generally assumes `Web::<Name>` for
things living in the `<Name>/` subdirectory, so let's instead move infra
code into its own namespace - it already sits in a (sub-)subdirectory
anyway.
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These were changed to i8 while investigating the issues fixed by commit
9e50f25. When [[RoundingIncrement]] is implemented, some of these will
be invoked with [[RoundingIncrement]]'s value, which can be up to 5000.
Change these to i32, and wrap them with AK::Checked for good measure.
Also change a couple helpers that are always comparing against zero to
not need an explicit check.
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Noticed this while working on [[RoundingMode]].
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