merging
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@ -10,15 +10,15 @@ use super::scheduler::Scheduler;
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use super::thread_manager::ThreadManager;
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/// Structure of a Semaphore used for synchronisation
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pub struct Semaphore<'t> {
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pub struct Semaphore {
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counter:i32,
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waiting_queue:List<Rc<RefCell<Thread>>>,
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thread_manager: Rc<RefCell<ThreadManager<'t>>> // On s'assure que le tm vit plus longtemps que les semaphore avec le lifetime
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thread_manager: Rc<RefCell<ThreadManager>> // On s'assure que le tm vit plus longtemps que les semaphore avec le lifetime
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}
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impl<'t> Semaphore<'_> {
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impl<'t> Semaphore {
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/// Decrement the value, and wait if it becomes < 0. Checking the
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/// value and decrementing must be done atomically, so we
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@ -63,16 +63,16 @@ impl<'t> Semaphore<'_> {
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/// Lock used for synchronisation, can be interpreted has a Semaphore with a
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/// counter of 1
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/// It's used for critical parts
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pub struct Lock<'t>{
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pub struct Lock{
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owner: Rc<RefCell<Thread>>,
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waiting_queue:List<Rc<RefCell<Thread>>>,
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thread_manager: Rc<RefCell<ThreadManager<'t>>>,
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thread_manager: Rc<RefCell<ThreadManager>>,
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free: bool
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}
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impl<'t> Lock<'_> {
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impl<'t> Lock {
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/// Wait until the lock become free. Checking the
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/// state of the lock (free or busy) and modify it must be done
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@ -111,7 +111,7 @@ impl<'t> Lock<'_> {
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pub fn release(&mut self, machine: &mut Machine, scheduler: &mut Scheduler, current_thread: Rc<RefCell<Thread>>) {
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let old_status = machine.interrupt.set_status(InterruptOff);
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if self.is_held_by_current_thread(current_thread) {
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if self.held_by_current_thread(current_thread) {
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if self.waiting_queue.peek() != None {
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self.owner = self.waiting_queue.pop().unwrap();
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scheduler.ready_to_run(Rc::clone(&self.owner));
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@ -123,20 +123,20 @@ impl<'t> Lock<'_> {
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machine.interrupt.set_status(old_status);
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}
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pub fn is_held_by_current_thread(&mut self, current_thread: Rc<RefCell<Thread>>) -> bool {
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pub fn held_by_current_thread(&mut self, current_thread: Rc<RefCell<Thread>>) -> bool {
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Rc::ptr_eq(&self.owner, ¤t_thread)
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}
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}
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/// Structure of a condition used for synchronisation
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pub struct Condition<'t>{
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pub struct Condition{
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waiting_queue:List<Rc<RefCell<Thread>>>,
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thread_manager: Rc<RefCell<ThreadManager<'t>>>,
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thread_manager: Rc<RefCell<ThreadManager>>,
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}
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impl<'t> Condition<'_> {
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impl<'t> Condition {
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/// Block the calling thread (put it in the wait queue).
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/// This operation must be atomic, so we need to disable interrupts.
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