151     ) -> Result<PendingOperation> {  in start_read_to_mem()
167     ) -> Result<PendingOperation> {  in start_write_from_mem()
178     pub fn start_fallocate(&self, offset: u64, len: u64, mode: u32) -> Result<PendingOperation> {  in start_fallocate()
189     pub fn start_fsync(&self) -> Result<PendingOperation> {  in start_fsync()
200     pub fn poll_fd_readable(&self) -> Result<PendingOperation> {  in poll_fd_readable()
783 pub struct PendingOperation {  struct
789 impl Future for PendingOperation {  argument
823 impl Drop for PendingOperation {  implementation
946         async fn cancel_io(op: PendingOperation) {  in canceled_before_completion()
950         async fn check_result(op: PendingOperation, expected: u32) {  in canceled_before_completion()
986         async fn check_op(op: PendingOperation) {  in drop_before_completion()