OS

mmtk::util::os

Struct OS 

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pub struct OS;
Expand description

Linux implementation of the OS trait.

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impl OSMemory for Linux

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fn dzmmap( start: Address, size: usize, strategy: MmapStrategy, annotation: &MmapAnnotation<'_>, ) -> MmapResult<Address>

Perform a demand-zero mmap. Read more
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fn munmap(start: Address, size: usize) -> Result<()>

Unmap a memory region.
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fn set_memory_access( start: Address, size: usize, prot: MmapProtection, ) -> Result<()>

Change the protection of a memory region to the specified protection.
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fn is_mmap_oom(os_errno: i32) -> bool

Check whether the given OS error number indicates an out-of-memory condition.
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fn panic_if_unmapped(start: Address, size: usize)

Checks if the memory has already been mapped. If not, we panic. Read more
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fn handle_mmap_error<VM: VMBinding>(mmap_error: MmapError, tls: VMThread)

Handle mmap errors, possibly by signaling the VM about an out-of-memory condition.
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fn get_system_total_memory() -> Result<u64>

Get the total memory of the system in bytes.
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impl OSProcess for Linux

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type ProcessIDType = i32

The process ID type for the OS.
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type ThreadIDType = u64

The thread ID type for the OS.
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fn get_process_memory_maps() -> Result<String>

Get the memory maps for the process. The returned string is a multi-line string. Fallback: This is only used for debugging. For unimplemented cases, this function can return a placeholder Ok value.
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fn get_process_id() -> Result<Self::ProcessIDType>

Get the process ID as a string. Fallback: This is only used for debugging. For unimplemented cases, this function can return a placeholder Ok value.
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fn get_thread_id() -> Result<Self::ThreadIDType>

Fallback: This is only used for debugging. For unimplemented cases, this function can return a placeholder Ok value.
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fn get_total_num_cpus() -> CoreNum

Return the total number of cores allocated to the program.
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fn bind_current_thread_to_core(core_id: CoreId)

Bind the current thread to the specified core.
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fn bind_current_thread_to_cpuset(core_ids: &[CoreId])

Bind the current thread to the specified core set.

Auto Trait Implementations§

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impl Freeze for Linux

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impl RefUnwindSafe for Linux

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impl Send for Linux

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impl Sync for Linux

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impl Unpin for Linux

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impl UnwindSafe for Linux

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,

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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,

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

Mutably borrows from an owned value. Read more
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impl<T> Downcast for T
where T: Any,

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fn into_any(self: Box<T>) -> Box<dyn Any>

Converts Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>, which can then be downcast into Box<dyn ConcreteType> where ConcreteType implements Trait.
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fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>

Converts Rc<Trait> (where Trait: Downcast) to Rc<Any>, which can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.
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fn as_any(&self) -> &(dyn Any + 'static)

Converts &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.
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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Converts &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.
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impl<T> DowncastSend for T
where T: Any + Send,

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fn into_any_send(self: Box<T>) -> Box<dyn Any + Send>

Converts Box<Trait> (where Trait: DowncastSend) to Box<dyn Any + Send>, which can then be downcast into Box<ConcreteType> where ConcreteType implements Trait.
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impl<T> DowncastSync for T
where T: Any + Send + Sync,

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fn into_any_sync(self: Box<T>) -> Box<dyn Any + Send + Sync>

Converts Box<Trait> (where Trait: DowncastSync) to Box<dyn Any + Send + Sync>, which can then be downcast into Box<ConcreteType> where ConcreteType implements Trait.
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fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Send + Sync>

Converts Arc<Trait> (where Trait: DowncastSync) to Arc<Any>, which can then be downcast into Arc<ConcreteType> where ConcreteType implements Trait.
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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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>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.