Commit Graph

17 Commits

Author SHA1 Message Date
Idan Horowitz
086969277e Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
Idan Horowitz
c68609b27f Kernel: Make {Nonnull,}OwnPtr<KString> hash compatible with StringView
This will allow us to use KString as HashTable/HashMap keys more easily
2022-01-29 23:01:23 +02:00
Idan Horowitz
0e44bb7d82 Kernel: Add a KString::bytes() helper 2022-01-13 00:20:08 -08:00
Idan Horowitz
aa1f7060af Kernel: Add an error propagating KString::number() API
This is simply a thin wrapper around the already existing
KString::formatted() API.
2022-01-12 16:09:09 +02:00
Brian Gianforcaro
4cc41ea186 Kernel: Add an error propagating KString::format(..) API :^)
In the continuous effort of better handling OOM in the kernel,
we want to move away from all AK::String usage. One of the final
pieces left to accomplish this goal is replacing all of the usages
of `String::formatted` with something that can actually propagate
failure.

The StringBuilder API was enhanced in the recent past to propagate
failure and thus a slightly modified version of what exists in
`AK::format` will work well for implementing failable format with
`KString`.
2021-11-30 11:16:35 +01:00
Andreas Kling
216e21a1fa AK: Convert AK::Format formatting helpers to returning ErrorOr<void>
This isn't a complete conversion to ErrorOr<void>, but a good chunk.
The end goal here is to propagate buffer allocation failures to the
caller, and allow the use of TRY() with formatting functions.
2021-11-17 00:21:13 +01:00
Andreas Kling
79fa9765ca Kernel: Replace KResult and KResultOr<T> with Error and ErrorOr<T>
We now use AK::Error and AK::ErrorOr<T> in both kernel and userspace!
This was a slightly tedious refactoring that took a long time, so it's
not unlikely that some bugs crept in.

Nevertheless, it does pass basic functionality testing, and it's just
real nice to finally see the same pattern in all contexts. :^)
2021-11-08 01:10:53 +01:00
Ben Wiederhake
fa018d3ba1 Kernel: Fix common misuse of KString in debug messages 2021-10-30 17:35:18 +02:00
Ali Mohammad Pur
d600f0d5b3 Kernel: Specialize Traits<(Nonnull)OwnPtr<T>> for KString
To make it behave like a string, since KString is always stored as a
(Nonnull)OwnPtr in the kernel.
2021-09-13 14:38:53 +04:30
Andreas Kling
4b4e1d1c90 Kernel: Remove redundant [[nodiscard]] on KResult return values
Both KResult and KResultOr are [[nodiscard]] at the class level,
so there's no need to have functions return `[[nodiscard]] KResult`.
2021-09-07 01:18:02 +02:00
Andreas Kling
56a2594de7 Kernel: Make KString factories return KResultOr + use TRY() everywhere
There are a number of places that don't have an error propagation path
right now, so I've added FIXME's about that.
2021-09-06 19:25:36 +02:00
Brian Gianforcaro
060503ef25 Kernel: Annotate KString methods as [[nodiscard]] 2021-08-13 11:08:11 +02:00
Max Wipfli
0f8a6e574c Kernel: Add formatter function for OwnPtr<KString>
This adds a formatter function for OwnPtr<KString>. This is added mainly
because lots of dbgln() statements generate Strings (such as absolute
paths) which are only used for debugging. Instead of catching possible
OOM situations at all the dbgln() callsites, this makes it possible to
let the formatter code handle those situations by outputting "[out of
memory]" if the OwnPtr is null.
2021-07-07 15:32:17 +02:00
Gunnar Beutner
596361791c Kernel: Add operator delete for KString
This doesn't change anything because our global operator delete also
calls kfree() - however instead of relying on this implementation
detail this makes this dependency more explicit.
2021-06-02 22:59:39 +01:00
Gunnar Beutner
87ff76bd57 Kernel: Make KString non-copyable and non-movable
The user is supposed to hold these in an OwnPtr but bad things would
happen if the user takes these out of the OwnPtr so let's make the
class non-copyable and non-movable.
2021-06-02 18:00:13 +02:00
Brian Gianforcaro
d838a02e74 Kernel: Add KString::must_{..} factory methods
There are a bunch of places like drivers which for all intense and
purposes can't really fail allocation during boot, and if they do
fail we should crash immediately.

This change adds `KString::must_create_uninitialized(..)` as well as
`KString::must_create(..)` for use during early boot initialization of
the Kernel. They enforce that they are only used during early boot.
2021-05-31 14:50:49 +04:30
Andreas Kling
279383a8f3 Kernel: Add KString, a single-owner string with OOM failure exposion
This is a simple string class for use in the kernel. It encapsulates
a length + character array in a single-allocation object.

Main differences from AK::String:

- Single-owner (no reference counting.)
- Allocation failures are exposed, not hidden.

The basic idea is to allow better and more precise string management
in the kernel.
2021-05-28 09:37:09 +02:00