aio_read64.3

xen 3.2.2 源码

.TH aio_read64 3 2002-09-12 "Linux 2.4" Linux AIO"
.SH NAME
aio_read64 \- Initiate an asynchronous read operation
.SH SYNOPSYS
.nf
.B #include <errno.h>
.br 
.B #include <aio.h>
.sp
.br
.BI "int aio_read64 (struct aiocb *aiocbp)"
.fi
.SH DESCRIPTION
This function is similar to the 
.IR "aio_read"
function.  The only
difference is that on 
.IR "32 bit"
machines, the file descriptor should
be opened in the large file mode.  Internally, 
.IR "aio_read64"
uses
functionality equivalent to 
.IR "lseek64"
to position the file descriptor correctly for the reading,
as opposed to 
.IR "lseek"
functionality used in 
.IR "aio_read".

When the sources are compiled with 
.IR "_FILE_OFFSET_BITS == 64"
, this
function is available under the name 
.IR "aio_read"
and so transparently
replaces the interface for small files on 32 bit machines.
.SH "RETURN VALUES"
See
.IR aio_read.
.SH ERRORS
See
.IR aio_read.
.SH "SEE ALSO"
.BR aio(3),
.BR aio_cancel(3),
.BR aio_cancel64(3),
.BR aio_error(3),
.BR aio_error64(3),
.BR aio_fsync(3),
.BR aio_fsync64(3),
.BR aio_init(3),
.BR aio_read(3),
.BR aio_return(3),
.BR aio_return64(3),
.BR aio_suspend(3),
.BR aio_suspend64(3),
.BR aio_write(3),
.BR aio_write64(3),
.BR errno(3),