Commit Graph

18 Commits

Author SHA1 Message Date
kleines Filmröllchen
068aea660c AK: Explain why FixedArray has no move assignment 2022-01-13 11:17:44 +01:00
kleines Filmröllchen
1d144ed6fc AK: Remove clear() from FixedArray and fixate its allocation guarantees
FixedArray always *almost* had the following allocation guarantees:
There is (possibly) one allocation in the constructor and one (or more)
deallocation(s) in the destructor. No other operation allocates or
deallocates. With this removal of the public clear() method, which
nobody except the test used anyways, those guarantees are now completely
true and furthermore fixated with an explanatory comment.
2022-01-13 11:17:44 +01:00
creator1creeper1
f73afbb5ae AK: Reorder functions in FixedArray so that mutable comes before const 2022-01-08 22:54:05 +01:00
creator1creeper1
18a2685c6a AK: Reorder access in FixedArray so that m_size comes before m_elements 2022-01-08 22:54:05 +01:00
creator1creeper1
3c05261611 AK+Everywhere: Make FixedArray OOM-safe
FixedArray now doesn't expose any infallible constructors anymore.
Rather, it exposes fallible methods. Therefore, it can be used for
OOM-safe code.
This commit also converts the rest of the system to use the new API.
However, as an example, VMObject can't take advantage of this yet,
as we would have to endow VMObject with a fallible static
construction method, which would require a very fundamental change
to VMObject's whole inheritance hierarchy.
2022-01-08 22:54:05 +01:00
Brian Gianforcaro
c192c303d2 AK: Use default constructor/destructor instead of declaring an empty one
Default implementations allow for more optimizations.
See: https://pvs-studio.com/en/docs/warnings/v832/
2021-09-16 17:17:13 +02:00
Andreas Kling
3609ac4cf9 AK: Use kmalloc_array() where appropriate 2021-08-08 00:03:45 +02:00
Andreas Kling
373b8d7cfa AK: Add FixedArray::span() 2021-07-11 17:42:31 +02:00
Andreas Kling
88c8451973 AK: Bring back FixedArray<T>
Let's bring this class back, but without the confusing resize() API.
A FixedArray<T> is simply a fixed-size array of T.

The size is provided at run-time, unlike Array<T> where the size is
provided at compile-time.
2021-07-11 17:42:31 +02:00
asynts
70dd97c46e AK: Remove FixedArray class. 2020-09-08 14:01:21 +02:00
asynts
1b3ecb01a5 AK: Add generic SimpleIterator class to replace VectorIterator. 2020-09-08 14:01:21 +02:00
Tom
80560d1be3 AK: Fix FixedArray zero bytes allocations 2020-08-30 17:30:48 +02:00
asynts
8e7dfebf11 AK: Add bytes() method to FixedArray. 2020-08-15 21:21:18 +02:00
Andreas Kling
a7dbb3cf96 Kernel: Use a FixedArray for a process's extra GIDs
There's not really enough of these to justify using a HashTable.
2020-02-18 11:35:47 +01:00
William McPherson
ddefb95b21 AK: Add FixedArray::data() 2020-01-31 13:13:04 +01:00
Andreas Kling
94ca55cefd Meta: Add license header to source files
As suggested by Joshua, this commit adds the 2-clause BSD license as a
comment block to the top of every source file.

For the first pass, I've just added myself for simplicity. I encourage
everyone to add themselves as copyright holders of any file they've
added or modified in some significant way. If I've added myself in
error somewhere, feel free to replace it with the appropriate copyright
holder instead.

Going forward, all new source files should include a license header.
2020-01-18 09:45:54 +01:00
Andreas Kling
c48acafcba AK: Add assertions to FixedArray::operator[]
Let's catch ourselves if we ever index out of bounds into one of these.
2020-01-07 14:49:33 +01:00
Andreas Kling
5096eaa845 AK: Add a FixedArray<T> container
This is a simple array wrapper that knows its size. It has begin/end
so you can use range-for. It also has a resize() that reallocates.
2019-08-07 20:05:36 +02:00