7 pub type intptr_t = isize;
11 pub type ssize_t = isize;
12 pub type ptrdiff_t = isize;
451     pub fn read(fd: i32, buf: *mut u8, len: usize) -> isize;  in read()  argument
454     pub fn write(fd: i32, buf: *const u8, len: usize) -> isize;  in write()  argument
457     pub fn readv(fd: i32, iov: *const iovec, iovcnt: usize) -> isize;  in readv()  argument
460     pub fn writev(fd: i32, iov: *const iovec, iovcnt: usize) -> isize;  in writev()  argument
472     pub fn getdents64(fd: i32, dirp: *mut dirent64, count: usize) -> isize;  in getdents64()  argument
501     pub fn recv(sockfd: i32, buf: *mut u8, len: usize, flags: i32) -> isize;  in recv()  argument
511     ) -> isize;  in recvfrom()  argument
514     pub fn send(sockfd: i32, buf: *const c_void, len: usize, flags: i32) -> isize;  in send()  argument
524     ) -> isize;  in sendto()  argument