1
0
Fork 0
forked from AbleOS/ableos
ableos_time/ableos/src/kmain.rs
2021-12-24 03:30:27 -06:00

107 lines
2.8 KiB
Rust

#![allow(clippy::empty_loop)]
pub extern crate externc_libm as libm;
use {
crate::{
arch::{drivers::graphics::GraphicsBuffer, init, sloop},
driver_traits::graphics::Graphics,
experiments::systeminfo::{KERNEL_VERSION, RELEASE_TYPE},
keyboard::DecodedKey,
relib::math::rand::RAND_HANDLE,
scheduler::{test_fn, Thread, ThreadList},
},
alloc::{boxed::Box, rc::Rc, vec, vec::Vec},
lazy_static::lazy_static,
};
#[no_mangle]
#[allow(unconditional_recursion)]
pub extern "C" fn stack_overflow() -> u8 {
stack_overflow();
// meme number
69 // NOTE: Any specific reason for this number asside from memes?
}
lazy_static! {
pub static ref KEY_BUFFER: [DecodedKey; 256] = [DecodedKey::RawKey(123); 256];
pub static ref KEY_BUFFER_POINTER: u8 = 0;
pub static ref THREAD_LIST: spin::Mutex<ThreadList> = spin::Mutex::new(vec![]);
pub static ref TICK: spin::Mutex<u64> = spin::Mutex::new(0);
}
use alloc::format;
use crate::log::{self, Log};
#[no_mangle]
pub fn kernel_main() -> ! {
init::init();
let mut a_thread = Thread::new();
a_thread.new_task(test_fn);
a_thread.new_task(test_fn);
THREAD_LIST.lock().push(a_thread);
GraphicsBuffer::draw();
GraphicsBuffer::hide_cursor();
GraphicsBuffer::show_cursor();
if false {
test_alloc();
}
// crate::wasm::evaluate();
println!("{} v{}", RELEASE_TYPE, KERNEL_VERSION);
log::ANSISerialLogger::debug(&format!("{} v{}", RELEASE_TYPE, KERNEL_VERSION));
{
use crate::experiments::mail::MailBoxes;
let mut x = MailBoxes::new();
x.set_flag(1);
x.set_flag(2);
// x.dump_flags();
}
// stack_overflow();
// crate::arch::shutdown();
sloop()
}
/// called by arch specific timers to tick up all kernel related functions
pub fn tick() {
let mut data = TICK.lock();
*data += 1;
RAND_HANDLE.lock().seed_entropy_timer(*data);
}
pub fn key_entropy(key: u8) {
RAND_HANDLE.lock().seed_entropy_keyboard(key);
}
fn test_alloc() {
let x: Vec<u8> = vec![1];
println!("{:?}", x);
let heap_value = Box::new(41);
println!("heap_value at {:p}", heap_value);
// create a dynamically sized vector
let mut vec = Vec::new();
for i in 0..500 {
vec.push(i);
}
println!("vec at {:p}", vec.as_slice());
// create a reference counted vector -> will be freed when count reaches 0
let reference_counted = Rc::new(vec![1, 2, 3]);
let cloned_reference = reference_counted.clone();
println!(
"current reference count is {}",
Rc::strong_count(&cloned_reference)
);
core::mem::drop(reference_counted);
println!(
"reference count is {} now",
Rc::strong_count(&cloned_reference)
);
}