Add xfs_io into xfsprogs, an xfs_db-alike program for the XFS IO path

which knows about direct IO, space preallocation, realtime files, etc,
which the usual tools like dd don't unfortunately.

diff --git a/io/fsync.c b/io/fsync.c
new file mode 100644 (file)
index 0000000..fd712ef
--- /dev/null
+++ b/io/fsync.c
@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 2003 Silicon Graphics, Inc.  All Rights Reserved.
+ * 
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ * 
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * 
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ * 
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ * 
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ * 
+ * http://www.sgi.com 
+ * 
+ * For further information regarding this notice, see: 
+ * 
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include <libxfs.h>
+#include "command.h"
+#include "init.h"
+
+static cmdinfo_t fsync_cmd;
+static cmdinfo_t fdatasync_cmd;
+
+static int
+fsync_f(
+       int                     argc,
+       char                    **argv)
+{
+       if (fsync(fdesc) < 0) {
+               perror("fsync");
+               return 0;
+       }
+       return 0;
+}
+
+static int
+fdatasync_f(
+       int                     argc,
+       char                    **argv)
+{
+       if (fdatasync(fdesc) < 0) {
+               perror("fdatasync");
+               return 0;
+       }
+       return 0;
+}
+
+void
+fsync_init(void)
+{
+       fsync_cmd.name = _("fsync");
+       fsync_cmd.altname = _("s");
+       fsync_cmd.cfunc = fsync_f;
+       fsync_cmd.oneline =
+               _("calls fsync(2) to flush all in-core file state to disk");
+
+       fdatasync_cmd.name = _("fdatasync");
+       fdatasync_cmd.altname = _("ds");
+       fdatasync_cmd.cfunc = fdatasync_f;
+       fdatasync_cmd.oneline =
+               _("calls fdatasync(2) to flush the files in-core data to disk");
+
+       add_command(&fsync_cmd);
+       add_command(&fdatasync_cmd);
+}