|
Hopefully, this page is exactly what you are looking for, but if not, you can always find further assistance on Unix/Linux Forum!
<sys/uio.h>(P) POSIX Programmer's Manual <sys/uio.h>(P)
NAME
sys/uio.h - definitions for vector I/O operations
SYNOPSIS
#include <sys/uio.h>
DESCRIPTION
The <sys/uio.h> header shall define the iovec structure that includes
at least the following members:
void *iov_base Base address of a memory region for input or output.
size_t iov_len The size of the memory pointed to by iov_base.
The <sys/uio.h> header uses the iovec structure for scatter/gather I/O.
The ssize_t and size_t types shall be defined as described in
<sys/types.h>.
The following shall be declared as functions and may also be defined as
macros. Function prototypes shall be provided.
ssize_t readv(int, const struct iovec *, int);
ssize_t writev(int, const struct iovec *, int);
The following sections are informative.
APPLICATION USAGE
The implementation can put a limit on the number of scatter/gather ele-
ments which can be processed in one call. The symbol {IOV_MAX} defined
in <limits.h> should always be used to learn about the limits instead
of assuming a fixed value.
RATIONALE
Traditionally, the maximum number of scatter/gather elements the system
can process in one call were described by the symbolic value {UIO_MAX-
IOV}. In IEEE Std 1003.1-2001 this value is replaced by the constant
{IOV_MAX} which can be found in <limits.h>.
FUTURE DIRECTIONS
None.
SEE ALSO
<limits.h> , <sys/types.h> , the System Interfaces volume of
IEEE Std 1003.1-2001, read(), write()
COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form
from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
-- Portable Operating System Interface (POSIX), The Open Group Base
Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
Electrical and Electronics Engineers, Inc and The Open Group. In the
event of any discrepancy between this version and the original IEEE and
The Open Group Standard, the original IEEE and The Open Group Standard
is the referee document. The original Standard can be obtained online
at http://www.opengroup.org/unix/online.html .
IEEE/The Open Group 2003 <sys/uio.h>(P)
Man(1) output converted with
man2html and wrapped by fishsponge
This page was generated on Sat Sep 8 16:41:12 GMT 2007
|
Your favourite pages:
No pages logged yet.
Trying to save cookie... Top 10 most popular pages:
ssh man page (4011 hits)
(Suse Linux 10.1)
CPAN man page (3935 hits)
(Suse Linux 10.1)
startproc man page (1429 hits)
(Suse Linux 10.1)
svn man page (1146 hits)
(FreeBSD 6.2)
signal man page (1067 hits)
(Suse Linux 10.1)
lwptut man page (1033 hits)
(Suse Linux 10.1)
startpar man page (808 hits)
(Suse Linux 10.1)
netcat man page (796 hits)
(Suse Linux 10.1)
Net::Config man page (740 hits)
(Suse Linux 10.1)
oowriter man page (720 hits)
(Suse Linux 10.1)
|
Man Pages 
