use std::{sync::{RwLock, Arc}};

use lazy_static::lazy_static;

use crate::{kernel::{thread::Thread, scheduler::Scheduler}, utility::list::List};

extern crate lazy_static;

lazy_static! {
    pub static ref G_CURRENT_THREAD: RwLock<Option<Thread>> = RwLock::new(Option::None);
    pub static ref G_THREAD_TO_BE_DESTROYED: RwLock<Option<Thread>> = RwLock::new(Option::None);
    pub static ref G_ALIVE: RwLock<List<Arc<Thread>>> = RwLock::new(List::new());
    pub static ref G_SCHEDULER: RwLock<Scheduler> = RwLock::new(Scheduler::new());
}


#[derive(PartialEq)]
pub enum ObjectType {
    SemaphoreType,
    LockType,
    ConditionType,
    FileType,
    ThreadType,
    InvalidType
}