1 #ifndef SYS_UIO_H
2 #define SYS_UIO_H
3 
4 #include <inttypes.h>
5 #include <unistd.h>
6 
7 struct iovec
8 {
9 	void	*iov_base;  /* Base address of a memory region for input or output */
10 	size_t	 iov_len;   /* The size of the memory pointed to by iov_base */
11 };
12 
13  ssize_t readv(int fildes, const struct iovec *iov, int iovcnt);
14  ssize_t writev(int fildes, const struct iovec *iov, int iovcnt);
15 
16 #endif /* SYS_UIO_H */
17