From 8b2134db5eb503216886522e11db88d74446c64d Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Tue, 22 Jun 1999 23:56:08 +0000 Subject: 1999-06-23 Roland McGrath * sysdeps/mach/hurd/read.c (__libc_read): Just call __pread with OFFSET argument of (off_t) -1. * sysdeps/mach/hurd/write.c (__libc_write): Just call __pwrite with OFFSET argument of (off_t) -1. * sysdeps/mach/hurd/pwrite.c: New file. * sysdeps/mach/hurd/pread.c: New file. * hurd/fd-read.c (_hurd_fd_read): Take new parameter OFFSET and pass it in the RPC instead of always -1. * hurd/fd-write.c (_hurd_fd_write): Likewise. * hurd/hurd/fd.h: Update decls. --- sysdeps/mach/hurd/pread.c | 31 +++++++++++++++++++++++++++++++ sysdeps/mach/hurd/pwrite.c | 33 +++++++++++++++++++++++++++++++++ 2 files changed, 64 insertions(+) create mode 100644 sysdeps/mach/hurd/pread.c create mode 100644 sysdeps/mach/hurd/pwrite.c (limited to 'sysdeps') diff --git a/sysdeps/mach/hurd/pread.c b/sysdeps/mach/hurd/pread.c new file mode 100644 index 0000000..6deb969 --- /dev/null +++ b/sysdeps/mach/hurd/pread.c @@ -0,0 +1,31 @@ +/* Read block from given position in file without changing file pointer. + Hurd version. + Copyright (C) 1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include +#include + +ssize_t +__pread (int fd, void *buf, size_t nbyte, off_t offset) +{ + error_t err = HURD_FD_USE (fd, _hurd_fd_read (descriptor, + buf, &nbytes, offset)); + return err ? __hurd_dfail (fd, err) : nbytes; +} +weak_alias (__pread, pread) diff --git a/sysdeps/mach/hurd/pwrite.c b/sysdeps/mach/hurd/pwrite.c new file mode 100644 index 0000000..405c152 --- /dev/null +++ b/sysdeps/mach/hurd/pwrite.c @@ -0,0 +1,33 @@ +/* Write block at given position in file without changing file pointer. + Hurd version. + Copyright (C) 1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include +#include + +/* Write NBYTES of BUF to FD at given position OFFSET without changing + the file position. Return the number written, or -1. */ +ssize_t +__pwrite (int fd, const void *buf, size_t nbytes, off_t offset) +{ + error_t err = HURD_FD_USE (fd, _hurd_fd_write (descriptor, + buf, &nbytes, offset)); + return err ? __hurd_dfail (fd, err) : nbytes; +} +weak_alias (__pwrite, pwrite) -- cgit v1.1