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 */
13 ssize_t readv(int fildes, const struct iovec *iov, int iovcnt);
14 ssize_t writev(int fildes, const struct iovec *iov, int iovcnt);
16 #endif /* SYS_UIO_H */