pub trait VmIoOnce {
// Required methods
fn read_once<T: PodOnce>(&self, offset: usize) -> Result<T>;
fn write_once<T: PodOnce>(&self, offset: usize, new_val: &T) -> Result<()>;
}Expand description
A trait that enables reading/writing data from/to a VM object using one non-tearing memory load/store.
See also VmIo, which enables reading/writing data from/to a VM object without the guarantee
of using one non-tearing memory load/store.
Required Methods§
Sourcefn read_once<T: PodOnce>(&self, offset: usize) -> Result<T>
fn read_once<T: PodOnce>(&self, offset: usize) -> Result<T>
Reads a value of the PodOnce type at the specified offset using one non-tearing memory
load.
Except that the offset is specified explicitly, the semantics of this method is the same as
VmReader::read_once.
Sourcefn write_once<T: PodOnce>(&self, offset: usize, new_val: &T) -> Result<()>
fn write_once<T: PodOnce>(&self, offset: usize, new_val: &T) -> Result<()>
Writes a value of the PodOnce type at the specified offset using one non-tearing memory
store.
Except that the offset is specified explicitly, the semantics of this method is the same as
VmWriter::write_once.
Dyn Compatibility§
This trait is not dyn compatible.
In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.