Trait OpCode
pub trait OpCode {
// Required method
unsafe fn operate(
self: Pin<&mut Self>,
optr: *mut OVERLAPPED,
) -> Poll<Result<usize, Error>>;
// Provided methods
fn op_type(&self) -> OpType { ... }
fn cancel(self: Pin<&mut Self>, optr: *mut OVERLAPPED) -> Result<(), Error> { ... }
}Expand description
Abstraction of IOCP operations.
Required Methods§
unsafe fn operate(
self: Pin<&mut Self>,
optr: *mut OVERLAPPED,
) -> Poll<Result<usize, Error>>
unsafe fn operate( self: Pin<&mut Self>, optr: *mut OVERLAPPED, ) -> Poll<Result<usize, Error>>
Perform Windows API call with given pointer to overlapped struct.
It is always safe to cast optr to a pointer to
Overlapped<Self>.
Don’t do heavy work here if OpCode::op_type returns
OpType::Event.
§Safety
selfmust be alive until the operation completes.- When
OpCode::op_typereturnsOpType::Blocking, this method is called in another thread.