# TaskManager in os::task::manager - Rust
A array of `TaskControlBlock` that is thread-safe
Keywords: rust, rustlang, rust-lang, TaskManager

# Struct os::task::manager::TaskManager

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    pub struct TaskManager {
        ready_queue: VecDeque<Arc<TaskControlBlock>>,
    }

Expand description

A array of `TaskControlBlock` that is thread-safe

## Fields

`ready_queue: VecDeque<Arc<TaskControlBlock>>`

## Implementations

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### impl TaskManager

A simple FIFO scheduler.

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#### pub fn new() -> Self

Creat an empty TaskManager

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#### pub fn add(&mut self, task: Arc<TaskControlBlock>)

Add a task to `TaskManager`

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#### pub fn fetch(&mut self) -> Option<Arc<TaskControlBlock>>

Remove the first task and return it,or `None` if `TaskManager` is empty

## Auto Trait Implementations

### impl !RefUnwindSafe for TaskManager

### impl Send for TaskManager

### impl Sync for TaskManager

### impl Unpin for TaskManager

### impl !UnwindSafe for TaskManager

## Blanket Implementations

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### impl<T> Any for T where
T: 'static + ?Sized,

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#### fn type_id(&self) -> TypeId

Gets the `TypeId` of `self`. Read more

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### impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

#### fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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### impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

#### fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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### impl<T> From<T> for T

const: unstable · source

#### fn from(t: T) -> T

Returns the argument unchanged.

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### impl<T, U> Into<U> for T where
U: From<T>,

const: unstable · source

#### fn into(self) -> U

Calls `U::from(self)`.

That is, this conversion is whatever the implementation of `From<T> for U` chooses to do.

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### impl<T, U> TryFrom<U> for T where
U: Into<T>,

#### type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

#### fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

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### impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

#### type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

const: unstable · source

#### fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.