iocancel
iocancel refers to the Linux asynchronous I/O cancellation operation, commonly seen in the libaio interface. It provides a mechanism to cancel a previously submitted asynchronous I/O request from an io_context_t. Programs submit I/O requests with io_submit, and may later cancel a pending request using io_cancel.
The function signature is int io_cancel(io_context_t ctx, struct iocb *iocb, struct io_event *result). It takes an
Cancellation behavior: If io_cancel succeeds, the operation is removed from the submission queue and the cancellation
Limitations and scope: io_cancel applies only to I/O requests submitted to a compatible Linux AIO context. Not