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26 Commits

Author SHA1 Message Date
Andreas Kling
539985f4fe HashTable: Use the Bucket type in some places over SinglyLinkedList<T> 
This is just for consistency, and we might want to switch to another
bucket type some day.
 2019-08-04 19:20:20 +02:00
Andreas Kling
f10e850644 HashTable: Assert on iteration attempt over table during clear/rehash 
It doesn't seem sane to try to iterate over a HashTable while it's in
the middle of being cleared. Since this might cause strange problems,
this patch adds an assertion if an iterator is constructed during
clear() or rehash() of a HashTable.
 2019-07-31 10:23:24 +02:00
Andreas Kling
6e95b11395 AK: Allow HashMap to be used with non-default-constructible values. 
Solve this by adding find() overloads to HashTable and SinglyLinkedList
that take a templated functor for comparing the values.

This allows HashMap to call HashTable::find() without having to create
a temporary Entry for use as the table key. :^)
 2019-06-29 21:09:40 +02:00
Andreas Kling
d5bb98acbc AK: Defer to Traits<T> for equality comparison in container templates. 
This is prep work for supporting HashMap with NonnullRefPtr<T> as values.
It's currently not possible because many HashTable functions require being
able to default-construct the value type.
 2019-06-29 19:14:03 +02:00
Andreas Kling
53479f9356 HashTable: Don't use move assignment in set(const T&). 2019-06-29 12:07:46 +02:00
Andreas Kling
2282e89d3f AK: Use a SinglyLinkedList<T> as HashTable's bucket chain storage. 
We were using a DoublyLinkedList<T> simply because it supported remove().
This patch consolidates the SinglyLinkedList iterators and adds remove().
 2019-06-27 16:36:31 +02:00
Andreas Kling
516d736afe AK: Consolidate iterators for HashTable and DoublyLinkedList respectively. 
Get rid of the ConstIterator classes for these containers and use templated
FooIterator<T, ...> and FooIterator<const T, ...> helpers.

This makes the HashTable class a lot easier to read.
 2019-06-27 15:57:49 +02:00
Andreas Kling
2c1c4ab116 AK: Make it possible to move and copy HashMap and HashTable. 
Previously it was only possible to move them, but we should allow copying
as well, since it's gonna be useful for many things.
 2019-06-24 11:57:54 +02:00
Robin Burchell
0dc9af5f7e Add clang-format file 
Also run it across the whole tree to get everything using the One True Style.
We don't yet run this in an automated fashion as it's a little slow, but
there is a snippet to do so in makeall.sh.
 2019-05-28 17:31:20 +02:00
Andreas Kling
12120167a9 AK: Add ensure_capacity() for HashMap and HashTable. 
These functions make sure that the underlying table can accomodate at least
'capacity' entries before needing a rehash.
 2019-05-27 13:07:20 +02:00
Andreas Kling
fafdda8902 AK: Change HashTable and HashMap size/capacity to be ints. 2019-05-06 13:28:52 +02:00
Andreas Kling
17b9fb7bfc AK: HashMap::set() didn't save new values for existing keys. 2019-03-25 04:23:17 +01:00
Andreas Kling
86413a6f5a LibGUI+FileManager: Add a GIcon class to support multi-size icons. 
A GIcon can contain any number of bitmaps internally, and will give you
the best fitting icon when you call bitmap_for_size().
 2019-03-24 04:28:36 +01:00
Andreas Kling
e88c8eae6a AK: Fix leak in HashTable move assignment operator. 2019-02-04 08:53:12 +01:00
Andreas Kling
3a4207b863 Fix dumb bug in HashTable::clear(). 
We forgot to clear the m_buckets pointer. This meant that multiple calls to
clear() would cause trouble.
 2019-01-30 19:32:54 +01:00
Andreas Kling
b75ee4aacb Coding style fixes in AK. 2019-01-19 22:53:05 +01:00
Andreas Kling
ec1c487dcd Yet another pass of style fixes. 2018-12-21 02:10:45 +01:00
Andreas Kling
ca6847b5bb Import a simple text editor I started working on. 2018-12-04 00:27:16 +01:00
Andreas Kling
a7f1d892a9 Add some basic setgroups(), getgroups() and initgroups(). 
Also teach /bin/id to print the user's supplemental groups.
 2018-11-07 01:38:51 +01:00
Andreas Kling
a32b3a3ddf Implement /proc/PID/vm. 
Refactored SyntheticFileSystem to maintain an arbitrary directory structure.
ProcFileSystem creates a directory entry in /proc for each new process.
 2018-10-26 17:44:19 +02:00
Andreas Kling
fdc782c1d1 Add a very naive block cache to the DiskBackedFileSystem. 
This would be a lot better as an LRU. Right now it's a 32-slot
hash table with random eviction.
 2018-10-25 12:36:50 +02:00
Andreas Kling
9171521752 Integrate ext2 from VFS into Kernel. 2018-10-17 10:57:23 +02:00
Andreas Kling
39444c5916 Fix HashTable::find() return iterator for items found in non-0 buckets. 2018-10-14 22:08:36 +02:00
Andreas Kling
c2ef54c044 Add HashTable::remove() and fix a bug where ConstIterator would skip the first. 2018-10-13 14:22:09 +02:00
Andreas Kling
f794190de0 Add a DoublyLinkedList template and start using it for HashTable. 2018-10-13 13:50:44 +02:00
Andreas Kling
5a30055157 Import all this stuff into a single repo called Serenity. 2018-10-10 11:53:07 +02:00