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Refactor ostd::task::processor based on faster CPU-local cells

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This commit is contained in:
Zhang Junyang
2024-08-06 03:18:37 +00:00
committed by Tate, Hongliang Tian
parent 05564ecd4f
commit 37a9590cfe
16 changed files with 123 additions and 138 deletions
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9
ostd/src/user.rs
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@ -12,6 +12,7 @@ use crate::{cpu::UserContext, mm::VmSpace, prelude::*, task::Task};
///
/// Each user space has a VM address space and allows a task to execute in
/// user mode.
#[derive(Debug)]
pub struct UserSpace {
/// vm space
vm_space: Arc<VmSpace>,
@ -94,7 +95,7 @@ pub trait UserContextApi {
///
/// let current = Task::current();
/// let user_space = current.user_space()
/// .expect("the current task is associated with a user space");
/// .expect("the current task is not associated with a user space");
/// let mut user_mode = user_space.user_mode();
/// loop {
/// // Execute in the user space until some interesting events occur.
@ -108,14 +109,14 @@ pub struct UserMode<'a> {
context: UserContext,
}
// An instance of `UserMode` is bound to the current task. So it cannot be
// An instance of `UserMode` is bound to the current task. So it cannot be [`Send`].
impl<'a> !Send for UserMode<'a> {}
impl<'a> UserMode<'a> {
/// Creates a new `UserMode`.
pub fn new(user_space: &'a Arc<UserSpace>) -> Self {
Self {
current: Task::current(),
current: Task::current().unwrap(),
user_space,
context: user_space.init_ctx,
}
@ -136,7 +137,7 @@ impl<'a> UserMode<'a> {
where
F: FnMut() -> bool,
{
debug_assert!(Arc::ptr_eq(&self.current, &Task::current()));
debug_assert!(Arc::ptr_eq(&self.current, &Task::current().unwrap()));
self.context.execute(has_kernel_event)
}