This is a regression test to validate the functionality that was
reported broken in #9071, where the kernel would spin attempting
to cancel a stale timer.
The sys$alarm() syscall has logic to cache a m_alarm_timer to avoid
allocating a new timer for every call to alarm. Unfortunately that
logic was broken, and there were conditions in which we could have
a timer allocated, but it was no longer on the timer queue, and we
would attempt to cancel that timer again resulting in an infinite
loop waiting for the timers callback to fire.
To fix this, we need to track if a timer is currently in use or not,
allowing us to avoid attempting to cancel inactive timers.
Luke and Tom did the initial investigation, I just happened to have
time to write a repro and attempt a fix, so I'm adding them as the
as co-authors of this commit.
Co-authored-by: Luke <luke.wilde@live.co.uk>
Co-authored-by: Tom <tomut@yahoo.com>
Calculator now uses the KeypadValue class instead of double in
its internal calculations. By not constantly converting to
double back-and-forth, we do not use precision simply by, for
example, negating a number. This fixes#7484.
This commit adds a basic KeypadValue class which abstracts away
Keypad's internal representation in a slightly simpler format.
This will allow arithmetic operations in the Calculator to not
lose any precision. In cases where losing precision is necessary,
an explicit conversion operator to double is provided, as well as
an explicit constructor from double.
This gets rid of the following warning message from QEMU on startup:
qemu-system-i386: warning: '-soundhw pcspk' is deprecated, please set a
backend using '-machine pcspk-audiodev=<name>' instead
Fixes#4093.
Problem:
- New `all_of` implementation takes the entire container so the user
does not need to pass explicit begin/end iterators. This is unused
except is in tests.
Solution:
- Make use of the new and more user-friendly version where possible.
Add a column named 'Link status' to the Network tab in SystemMonitor
showing the speed and duplex if the link is up.
Add the link speed behind the existing text in the applet or show
'down' if the link is down.
Read the appropriate registers for RTL8139, RTL8168 and E1000.
For NE2000 just assume 10mbit full duplex as there is no indicator
for it in the pure NE2000 spec. Mock values for loopback.
Previously, it was a big list of test pages in no particular order, and
it was hard to find anything. This commit breaks it up into sections,
and renames some of the links to be more consistent.
The categories are slightly arbitrary, and I'm sure everyone will have a
different opinion on what they should be, and which links should go
where. But hopefully we can all agree that this is an improvement!
This also wraps the list into multiple columns on browsers that support
it, which unfortunately does NOT include Browser. :^( But hey, once we
do it'll be good!
Although the chdir was set up for the applications opened from
the quick launch, the regular application list hadn't do this.
This meant that you could open a Terminal or HackStudio project
in the root directory, which isn't so bad, but it's better to stick
to the user home directory.
Change the static buffers to ByteBuffers to deal with the dynamic
size of the incoming and outgoing packets. Use sizeof(struct ip) rather
than the magic number '20' for the IPv4 header size.
Report the size of the reply packet to the console.
Before now, only binary properties could be parsed. Non-binary props are
of the form "Type=Value", where "Type" may be General_Category, Script,
or Script_Extension (or their aliases). Of these, LibUnicode currently
supports General_Category, so LibRegex can parse only that type.
This changes LibRegex to parse the property escape as a Variant of
Unicode Property & General Category values. A byte code instruction is
added to perform matching based on General Category values.
This downloads the PropertyValueAliases.txt UCD file, which contains a
set of General Category aliases.
This changes the General Category enumeration to now be generated as a
bitmask. This is to easily allow General Category unions. For example,
the LC (Cased_Letter) category is the union of the Ll, Lu, and Lt
categories.
Change all the places that were including the deprecated parser, to
include the new one instead, and then delete the old parser code.
`ParentNode::query_selector[_all]()` now treat their input as a
comma-separated list of selectors, instead of just one, and return
elements that match any of the selectors in that list. This is according
to these specs:
- querySelector/querySelectorAll:
https://dom.spec.whatwg.org/#ref-for-dom-parentnode-queryselector%E2%91%A0
- selector matching algorithm:
https://www.w3.org/TR/selectors-4/#match-against-tree
These mostly match the API in `DeprecatedCSSParser.h`. The exception is
that `parse_selector()` returns a `SelectorList` instead of just one
`Selector`. The only uses of that are in
`ParentNode::query_selector[_all]()` which should be matching against a
list, according to the spec.
`parse_html_length()` is an odd case. It's used for `width="200"` cases
in HTML, so is not really CSS related, but does produce a StyleValue.
The values allowed in `width/height` in HTML vary per element, but they
are a lot more restricted than in CSS, so it's slightly inappropriate to
use the CSS parser for them, even though it's convenient.
We also ignore a few functions:
- `parse_line_width()`
- `parse_line_style()`
- `parse_color()`
These are all only used in `StyleResolver`, when it is given a property
value as a String. That won't happen once the old parser is removed.
`parse_as_foo()` implies that the Parser's internal data is used,
whereas `parse_a_foo()` implies that the passed-in data is used.
Also, made all the `parse_a_foo()` methods private, as they are only
required within the Parser, and this makes the API clearer to outsiders.
The `parse_a(s)_foo()` naming is a little awkward, but it comes from
section 5.3 of the spec, so seemed worth keeping:
https://www.w3.org/TR/css-syntax-3/#parser-entry-points
