libcgroup: Move parse_cgroup_data to separate .c file

From: Jan Safranek <jsafrane@redhat.com>

Cgclassify could benefit from parsing of -g command line option, let's move it
to separate file, where both cgexec and cgclassify can use it.

The data structures and function names are also more descriptive now.

I added also the copyright notice and license to the new files.

Signed-off-by: Jan Safranek <jsafrane@redhat.com>
Signed-off-by: Dhaval Giani <dhaval@linux.vnet.ibm.com>



git-svn-id: https://libcg.svn.sourceforge.net/svnroot/libcg/trunk@339 4f4bb910-9a46-0410-90c8-c897d4f1cd53

1 files changed, 48 insertions, 0 deletions

diff --git a/tools-common.h b/tools-common.h
new file mode 100644
index 0000000..cd16804
--- /dev/null
+++ b/tools-common.h
@@ -0,0 +1,48 @@
+/*
+ * Copyright Red Hat, Inc. 2009
+ *
+ * Author:	Vivek Goyal <vgoyal@redhat.com>
+ *		Jan Safranek <jsafrane@redhat.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2.1 of the GNU Lesser 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.
+ *
+ */
+
+#ifndef __TOOLS_COMMON
+
+#define __TOOLS_COMMON
+
+#include <libcgroup.h>
+#include "libcgroup-internal.h"
+
+/**
+ * Auxiliary specifier of group, used to store parsed command line options.
+ */
+struct cgroup_group_spec {
+	char path[FILENAME_MAX];
+	char *controllers[CG_CONTROLLER_MAX];
+};
+
+
+/**
+ * Parse command line option with group specifier into provided data structure.
+ * The option must have form of 'controller1,controller2,..:group_name'.
+ *
+ * The parsed list of controllers and group name is added at the end of
+ * provided cdptr.
+ *
+ * @param cdptr Target data structure to fill. New item is allocated and added
+ * 		at the end.
+ * @param optarg Argument to parse.
+ * @return 0 on success, != 0 on error.
+ */
+int parse_cgroup_spec(struct cgroup_group_spec *cdptr[], char *optarg);
+
+
+#endif /* TOOLS_COMMON */