Wrap thread creation in a Thread::try_create() helper that first
allocates a kernel stack region. If that allocation fails, we propagate
an ENOMEM error to the caller.
This avoids the situation where a thread is half-constructed, without a
valid kernel stack, and avoids having to do messy cleanup in that case.
This is a little bit messy but the basic idea is:
Syntax::Highlighter now has a Syntax::HighlighterClient to talk to the
outside world. It mostly communicates in LibGUI primitives that are
available in headers, so inlineable.
GUI::TextEditor inherits from Syntax::HighlighterClient.
This let us to move GUI::JSSyntaxHighlighter to JS::SyntaxHighlighter
and remove LibGUI's dependency on LibJS.
We were returning early from the deinterlacing loop after the very last
pass, but we should just let the outer loop finish and return instead.
This makes the Netscape animation on https://timmorgan.dev work. :^)
This is an external file from https://pci-ids.ucw.cz that's being updated
daily, which was imported a while ago but probably shouldn't live in the
SerenityOS repository in the first place (or else would need manual
maintenance). The legal aspects of redistributing this file as we
currently do are not quite clear to me, they require either GPL (version
2 or later) or 3-clause BSD - Serenity is 2-clause BSD...
The current version we use is 2019.08.08, so quite outdated - and while
most of these devices are obviously not supported, we're still capable
of *listing* them, so having an up-to-date version with recent additions
and fixes would be nice.
This updates the root CMakeLists.txt to check for existence of the file
and download it if not found - effectively on every fresh build. Do note
that this is not a critical file, and the system runs just fine should
this ever fail. :^)
This patch brings Kernel::RangeAllocator to UserspaceEmulator in a
slightly simplified form.
It supports the basic three allocation types needed by virt$mmap():
allocate_anywhere, allocate_specific, and allocate_randomized.
Porting virt$mmap() and virt$munmap() to use the allocator makes
UE work correctly once again. :^)
They're really the same thing: a DNS packet can contain both questions and
answers, and there's a single bit in the header that determines whether the
packet represents a query or a response. It'll be simpler for us to represent
both types of packets using the same class.
This class can be both serialized and deserialized to/from a raw DNS packet.
Now that we no longer depend on the textual IPC format, we can pass IP addresses
in the format most code actually has and needs it: in binary. The only places we
actually have to deal with textual address representation is:
* When reading /etc/hosts, we have to parse textual addresses & convert them to
binary;
* When doing reverse lookups, we have to form a pseudo-hostname of the form
x.x.x.x.in-addr.arpa.
So we do the conversion in those two cases.
This also increases uniformity between how we handle A (IPv4 address) and other
resource record types. Namely, we now store the raw binary data as received from
a DNS server.
The ad-hoc IPC we were doing with LookupServer was kinda gross. With this,
LookupServer is a regular IPC server. In the future, we want to add more APIs
for LookupServer to talk to its clients (such as DHCPClient telling LookupServer
about the DNS server discovered via DHCP, and DNS-SD client browsing for
services), which calls for a more expressive IPC format; this is what LibIPC is
perfect for.
While the LookupServer side is using the regular LibIPC mechanics and patterns,
the LibC side has to hand-roll LibIPC format serialization without actually
using LibIPC. We might be able to get rid of this in the future, but for now it
has to be like that. The good news is the format is not that bad at all.
Currently, there is no way to know when in a profile's duration a
sample was taken. This commit adds a basic timestamp to the timeline
widget, and a black bar to show where the cursor is hovering over.
I just ran through successfully building and running SerenityOS under
macOS. I ran into two main things that I struggled with, which were
- properly enabling osxfuse (through System Preferences)
- running the suggested command about compiler versions in such a way
that would be compatible with Ninja (as it turns out, I just needed
to add `-G Ninja` to the command)
This commit clarifies those things for anyone who may follow
