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extern crate alloc;
use alloc::boxed::Box;
use core::ptr::null_mut;

extern "C" {
    fn do_task_spawn(stack_size: usize, entry_point: *const u32, parameter: *mut u32);
}

/// Creates a new task that will be run.
///
/// #Examples
/// ```
/// fn test_task(_: &mut u8) {
///     loop {}
/// }
/// task_spawn(1024, test_task, None);
pub fn task_spawn<T: Send>(stack_size: usize, entry_point: fn(&mut T), parameter: Option<Box<T>>) {
    unsafe {
        let param_ptr = match parameter {
            Some(param) => Box::into_raw(param) as *mut u32,
            None => null_mut(),
        };
        do_task_spawn(stack_size, entry_point as *const u32, param_ptr);
    }
}