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authorRoland McGrath <roland@gnu.org>1999-06-22 23:56:08 +0000
committerRoland McGrath <roland@gnu.org>1999-06-22 23:56:08 +0000
commit8b2134db5eb503216886522e11db88d74446c64d (patch)
tree1caa1ac50bf57fa8d2079aaa2f75a06b376fcb9c /sysdeps/mach/hurd
parent725af56f3adb3ea40cc4e58d1c9e0215e71186ba (diff)
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1999-06-23 Roland McGrath <roland@baalperazim.frob.com>
* 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.
Diffstat (limited to 'sysdeps/mach/hurd')
-rw-r--r--sysdeps/mach/hurd/pread.c31
-rw-r--r--sysdeps/mach/hurd/pwrite.c33
2 files changed, 64 insertions, 0 deletions
diff --git a/sysdeps/mach/hurd/pread.c b/sysdeps/mach/hurd/pread.c
new file mode 100644
index 0000000000..6deb969506
--- /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 <errno.h>
+#include <unistd.h>
+
+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 0000000000..405c1525e7
--- /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 <errno.h>
+#include <unistd.h>
+
+/* 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)