[Ocfs2-tools-devel] [PATCH 04/11] Ocfs2-tools: Add main header for o2info.

[Tristan Ye]

Define prototypes for o2info's operations and some basic structures.

Signed-off-by: Tristan Ye <tristan.ye at oracle.com>
---
 o2info/o2info.h |   79 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 79 insertions(+), 0 deletions(-)
 create mode 100644 o2info/o2info.h

diff --git a/o2info/o2info.h b/o2info/o2info.h
new file mode 100644
index 0000000..263fcd7
--- /dev/null
+++ b/o2info/o2info.h
@@ -0,0 +1,79 @@
+/* -*- mode: c; c-basic-offset: 8; -*-
+ * vim: noexpandtab sw=8 ts=8 sts=0:
+ *
+ * o2info.h
+ *
+ * o2info operation prototypes.
+ *
+ * Copyright (C) 2009 Oracle.  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License version 2 as published by the Free Software Foundation.
+ *
+ * This program 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
+ * General Public License for more details.
+ */
+
+#ifndef _O2INFO_H
+#define _O2INFO_H
+
+#include <getopt.h>
+
+#include "ocfs2/ocfs2.h"
+#include "ocfs2-kernel/kernel-list.h"
+
+#define O2INFO_USE_LIBOCFS2	(0x00000001)
+#define O2INFO_USE_IOCTL	(0x00000002)
+
+struct o2info_method {
+	int om_method;			/* Use libocfs2 or ioctl */
+	char om_path[PATH_MAX];
+	union {
+		ocfs2_filesys *om_fs;	/* Use libocfs2 for device */
+		int om_fd;		/* Use ioctl for file */
+	};
+};
+
+struct o2info_operation {
+	char            *to_name;
+	int             (*to_run)(struct o2info_operation *op,
+				 struct o2info_method *om,
+				 void *arg);
+	void            *to_private;
+};
+
+struct o2info_option {
+	struct option	opt_option;		/* For getopt_long().  If
+						   there is no short
+						   option, set .val to
+						   CHAR_MAX.  A unique
+						   value will be inserted
+						   by the code. */
+	struct o2info_operation *opt_op;
+
+	char		*opt_help;	/* Help string */
+	int		opt_set;	/* Was this option seen */
+	int		(*opt_handler)(struct o2info_option *opt, char *arg);
+	void		*opt_private;
+};
+
+struct o2info_op_task {
+	struct list_head o2p_list;
+	struct o2info_operation *o2p_task;
+};
+
+#define __O2INFO_OP(_name, _run, _private)				\
+{									\
+	.to_name		= #_name,				\
+	.to_run			= _run,					\
+	.to_private		= _private				\
+}
+
+#define DEFINE_O2INFO_OP(_name, _run, _private)				\
+struct o2info_operation	_name##_op =					\
+	__O2INFO_OP(_name, _run, _private)
+
+#endif  /* _O2INFO_H */
-- 
1.5.5