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Describe the struct iovec better.

This commit is contained in:
jruoho 2010-04-26 07:51:36 +00:00
parent b8b5c1efc1
commit 20f7ac7fd9
1 changed files with 17 additions and 4 deletions
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21
share/man/man9/uiomove.9
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@ -1,4 +1,4 @@
.\" $NetBSD: uiomove.9,v 1.16 2010/04/26 07:36:33 jruoho Exp $
.\" $NetBSD: uiomove.9,v 1.17 2010/04/26 07:51:36 jruoho Exp $
.\"
.\" Copyright (c) 1996 The NetBSD Foundation, Inc.
.\" All rights reserved.
@ -76,12 +76,25 @@ vectors to be processed.
The
.Va struct iovec
is defined to be:
.Bd -literal
.Bd -literal -offset indent
struct iovec {
void *iov_base; /* Base address. */
size_t iov_len; /* Length. */
void *iov_base;
size_t iov_len;
};
.Ed
.Pp
The members in the
.Va struct iovec
should only be initialized.
These are:
.Bl -tag -width "*iov_base " -offset indent
.It Va iov_base
The address for a range of memory to or from which data is transferred.
.It Va iov_len
The number of bytes of data to be transferred to
or from the range of memory starting at
.Va iov_base .
.El
.It Va uio_iovcnt
The number of
.Tn I/O