fn cancel(self: *IO_Uring, user_data: u64, cancel_user_data: u64, flags: u32) !*linux.io_uring_sqe
[src]
Queues (but does not submit) an SQE to remove an existing operation. Returns a pointer to the SQE.
The operation is identified by its user_data
.
The completion event result will be 0
if the operation was found and cancelled successfully, -EALREADY
if the operation was found but was already in progress, or -ENOENT
if the operation was not found.