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2482 Commits

Author SHA1 Message Date
Bananymous 0c3e5980d6 AOC2023: Implement day9 2023-12-09 16:22:43 +02:00
Bananymous 951873098e BAN: Rewrite heap sort 
Heap sort is now more close to gnulibc++ version. This is just more
simplified version.
 2023-12-08 22:45:55 +02:00
Bananymous 2b927b9729 BAN: Restructure sort functions and namespaces 2023-12-08 18:58:47 +02:00
Bananymous b523ccb893 AOC2023: Implement day8 
Second part was kinda weird. You are supposted to assume something
of the input, which necessarily is not true.
 2023-12-08 17:13:20 +02:00
Bananymous 7bb3172591 AOC2023: Use the default sort algorithm 2023-12-08 00:10:59 +02:00
Bananymous be657b9b18 BAN: Add default sort. This is wrapper around sort_intro 2023-12-08 00:10:09 +02:00
Bananymous 94e6b9fa65 BAN: Implement intro sort 2023-12-07 23:56:11 +02:00
Bananymous d8ea0eeba3 BAN: Add less than operator for iterator 2023-12-07 23:55:41 +02:00
Bananymous 6873244169 BAN: Move placement new to New.h 
I have no idea why they were defined in Move.h
 2023-12-07 23:52:57 +02:00
Bananymous 805b4096e9 BAN: Remove empty else. Builds with -Wall -Wextra 2023-12-07 23:50:35 +02:00
Bananymous 0f74e123b8 BAN: Implement ilog2 for unsigned integers 2023-12-07 23:50:04 +02:00
Bananymous 7f212106db BAN: Implement heap sort 2023-12-07 23:18:49 +02:00
Bananymous 46c3da71b6 BAN: Cleanup sorting code 2023-12-07 23:18:49 +02:00
Bananymous e5cab047d6 BAN: Implement more methods for iterators 2023-12-07 23:18:49 +02:00
Bananymous bf3e9eabd5 BAN: Implement distance() for iterators 2023-12-07 23:18:49 +02:00
Bananymous 19604015de BAN: Implement quick sort 2023-12-07 19:28:31 +02:00
Bananymous 08bc0a2815 BAN: Implement next() and prev() for iterators and use them in sorts 2023-12-07 19:28:05 +02:00
Bananymous 3bc7113cc5 sudo: fix some typos 2023-12-07 14:05:17 +02:00
Bananymous 24243268a6 Shell: do path resolution only if command doesn't contain '/' 2023-12-07 13:34:46 +02:00
Bananymous 2e858fddb5 Kernel: Remove obsolete Scheduler::is_valid_tid() 
This function was used when processes could die at any point in time.
Now that processes can only die in known spots, we can be sure they
are not holding any locks. This allows much more performant locking.
 2023-12-07 13:26:42 +02:00
Bananymous 12474addda Kernel: Make Inodes use the new lock 
Also remove old lock from TTY since it can just use the one Inode
already has.
 2023-12-07 13:19:12 +02:00
Bananymous 7c25e4ce5a Kernel: Implement RecursivePrioritySpinLock 
This locks won't allow locking from userspace thread if there is
kernel thread waiting to lock this.
 2023-12-07 13:18:21 +02:00
Bananymous 669d55707e AOC2023: Use quick sort in solution 2023-12-07 11:55:28 +02:00
Bananymous 6caa9b6f95 BAN: implement quick sort and test for it 2023-12-07 11:55:28 +02:00
Bananymous 59ad639fa8 BAN: Fix simple iterator operator--() 2023-12-07 11:55:28 +02:00
Bananymous 43458cc74f BAN: implement exchange sort and test for it 2023-12-07 11:55:28 +02:00
Bananymous e935a33a4d BAN: add value_type to iterators 2023-12-07 10:15:18 +02:00
Bananymous 536bb74d53 AOC2023: optimize hand score calculation 2023-12-07 09:26:17 +02:00
Bananymous a872efdef2 BAN: implement basic swap 
This will be improved, currently just works on general type T and
moves values between arguments.
 2023-12-07 09:26:17 +02:00
Bananymous efd8be8207 AOC2023: implement day7 2023-12-07 07:56:56 +02:00
Bananymous 06a84da844 Userspace: Implement barebones sudo 
This doesn't do any password checking or anything. Just sets uid and
gid before execvp()
 2023-12-06 18:15:42 +02:00
Bananymous 24b71d1170 Kernel: Appreciate setuid and setgid bits executables 2023-12-06 18:14:27 +02:00
Bananymous 0dc168a8c0 LibC: Implement basic execvp 2023-12-06 18:14:00 +02:00
Bananymous 76049b2e13 LibC: Implement and fix some string.h functions 2023-12-06 18:13:34 +02:00
Bananymous 393ac33e3c Kernel: Make sys_nanosleep interruptable by signals 2023-12-06 16:22:24 +02:00
Bananymous deeb6d2756 Kernel: Cleanup sys_sleep() and TTY::read_impl 2023-12-06 16:21:22 +02:00
Bananymous 1ac831d4b1 Kernel: Add API to block on semaphore until unblock or EINTR 2023-12-06 16:13:07 +02:00
Bananymous 534969df32 Kernel: Scheduler::unblock_thread() wakes sleeping threads 2023-12-06 16:12:37 +02:00
Bananymous 976ae64f88 LibC: make sleep() set errno if sleep woke up early 2023-12-06 13:13:43 +02:00
Bananymous a12ffaa8a2 Kernel: Make sleep syscall interruptable 2023-12-06 13:13:37 +02:00
Bananymous ff8b3be8dc Userspace: implement basic sleep command 2023-12-06 13:05:53 +02:00
Bananymous 56008869d6 Shell: Handle keyboard input that was interrupted by signal 2023-12-06 13:04:33 +02:00
Bananymous 1c78671078 Kernel: Rework all signal code 
Signal handling code was way too complex. Now everything is
simplified and there is no need for ThreadBlockers.

Only complication that this patch includes is that blocking syscalls
have to manually be made interruptable by signal. There might be some
clever solution to combat this is make this happen automatically.
 2023-12-06 13:02:17 +02:00
Bananymous cdcc36efde Kernel: Remove unnecessary raise syscall 2023-12-06 13:00:45 +02:00
Bananymous 336daa2cc5 Kernel: Add helper for checking whether segment is from userspace 2023-12-06 12:57:13 +02:00
Bananymous 531211e09d AOC2023: implement day6 2023-12-06 07:27:25 +02:00
Bananymous 894065a67e LibC: cleanup and fix fgets 
My quick fix for fgets wrote non-nullterminated newline if size was
one.

POSIX doesn't specify what happens if size == 0, so I do the same as
glibc and return NULL without setting errno.
 2023-12-05 10:00:43 +02:00
Bananymous 82cb2ea20b AOC2023: implement day5 2023-12-05 09:13:13 +02:00
Bananymous 95fc894303 LibC: fix fgets when reading empty line 2023-12-05 07:46:14 +02:00
Bananymous 622007f2ee Shell: Verify that command exists before executing it 
This prevents page fault somewhere when executing non-existing
commands.
 2023-12-04 22:57:27 +02:00