io_cancel.1

xen 3.2.2 源码

.\"/* sys_io_cancel:
.\" *      Attempts to cancel an iocb previously passed to io_submit.  If
.\" *      the operation is successfully cancelled, the resulting event is
.\" *      copied into the memory pointed to by result without being placed
.\" *      into the completion queue and 0 is returned.  May fail with
.\" *      -EFAULT if any of the data structures pointed to are invalid.
.\" *      May fail with -EINVAL if aio_context specified by ctx_id is
.\" *      invalid.  May fail with -EAGAIN if the iocb specified was not
.\" *      cancelled.  Will fail with -ENOSYS if not implemented.
.\" */
.\"
.TH io_cancel 2 2002-09-03 "Linux 2.4" "Linux AIO"
.SH NAME
io_cancel \- cancel io requests
.SH SYNOPSIS
.B #include <errno.h>
.br
.B #include <libaio.h>
.LP
.BI "int io_submit(io_context_t " ctx ", struct iocb *" iocb ", struct io_event *" result ");"