iovec(3type)

1iovec(3type)                                                      iovec(3type)
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NAME

6       iovec - Vector I/O data structure
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LIBRARY

9       Standard C library (libc)
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SYNOPSIS

12       #include <sys/uio.h>
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14       struct iovec {
15           void   *iov_base;  /* Starting address */
16           size_t  iov_len;   /* Size of the memory pointed to by iov_base. */
17       };
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DESCRIPTION

20       Describes  a  region  of memory, beginning at iov_base address and with
21       the size of iov_len bytes.  System calls use arrays of this  structure,
22       where  each  element  of  the array represents a memory region, and the
23       whole array represents a vector of memory regions.  The maximum  number
24       of  iovec  structures  in  that array is limited by IOV_MAX (defined in
25       <limits.h>, or accessible via the call sysconf(_SC_IOV_MAX)).
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STANDARDS

28       POSIX.1-2008.
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HISTORY

31       POSIX.1-2001.
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NOTES

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