Struct HostCopies 

pub struct HostCopies;

Copies between the allocations of a BytesStorage: host memory, so a copy is a memcpy and has landed by the time it returns.

Waits on nothing: whoever runs work against the memory waits for it before handing the relocation over.

Trait Implementations

impl CopyQueue<BytesStorage> for HostCopies

Available on crate feature storage-bytes only.

fn wait_device(&mut self) -> Result<(), ServerError>

Wait until the device is done with everything that could still touch the allocations about to move: every stream, and whatever the driver runs outside them.

fn copy( &mut self, storage: &mut BytesStorage, copy: &StorageCopy, ) -> Result<(), IoError>

Add copying copy.source’s bytes into copy.target to the batch wait_copies lands. A queue may hold it until then, so one relocation is one submission however many copies it makes.

fn wait_copies(&mut self) -> Result<(), ServerError>

Submit the copies added so far, if the queue held them, and wait until they have landed.

impl Debug for HostCopies

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for HostCopies

fn default() -> Self

Returns the “default value” for a type.