Function cancel [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.

Prototype

pub fn cancel( self: *IoUring, user_data: u64, cancel_user_data: u64, flags: u32, ) !*linux.io_uring_sqe

Parameters

self: *IoUringuser_data: u64cancel_user_data: u64flags: u32

Source

  pub fn cancel(
    self: *IoUring,
    user_data: u64,
    cancel_user_data: u64,
    flags: u32,
) !*linux.io_uring_sqe {
    const sqe = try self.get_sqe();
    sqe.prep_cancel(cancel_user_data, flags);
    sqe.user_data = user_data;
    return sqe;
}  