iovec
Section: Misc. Reference Manual Pages (3type)
Updated: 2022-10-30
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NAME
iovec - Vector I/O data structure
LIBRARY
Standard C library
(libc)
SYNOPSIS
#include <sys/uio.h>
struct iovec {
void *iov_base; /* Starting address */
size_t iov_len; /* Size of the memory pointed to by iov_base. */
};
DESCRIPTION
Describes a region of memory, beginning at
iov_base
address and with the size of
iov_len
bytes.
System calls use arrays of this structure,
where each element of the array represents a memory region,
and the whole array represents a vector of memory regions.
The maximum number of
iovec
structures in that array
is limited by
IOV_MAX
(defined in
<limits.h>,
or accessible via the call
sysconf(_SC_IOV_MAX)).
STANDARDS
POSIX.1-2001 and later.
NOTES
The following header also provides this type:
<sys/socket.h>.
SEE ALSO
process_madvise(2),
readv(2)
Index
- NAME
-
- LIBRARY
-
- SYNOPSIS
-
- DESCRIPTION
-
- STANDARDS
-
- NOTES
-
- SEE ALSO
-
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