iovec - Vector I/O data structure

       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)).

       POSIX.1-2001.

       Standard C library (libc)

       iovec - Vector I/O data structure

       The following header also provides this type: <sys/socket.h>.

process_madvise(2), readv(2)

Linux man-pages 6.9.1                              2024-05-02                                       iovec(3type)

       POSIX.1-2008.

#include<sys/uio.h>structiovec{void*iov_base;  /* Starting address */
           size_tiov_len;   /* Size of the memory pointed to by iov_base. */
       };