build-sys: use top-level directory for libmount rather than shlibs/mount

Signed-off-by: Karel Zak <kzak@redhat.com>

1 files changed, 78 insertions, 0 deletions

diff --git a/libmount/src/iter.c b/libmount/src/iter.c
new file mode 100644
index 000000000..99fedd17b
--- /dev/null
+++ b/libmount/src/iter.c
@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2009 Karel Zak <kzak@redhat.com>
+ *
+ * This file may be redistributed under the terms of the
+ * GNU Lesser General Public License.
+ */
+
+/**
+ * SECTION: iter
+ * @title: Iterator
+ * @short_description: unified iterator
+ *
+ * The iterator keeps direction and last position for access to the internal
+ * library tables/lists.
+ */
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include "mountP.h"
+
+/**
+ * mnt_new_iter:
+ * @direction: MNT_INTER_{FOR,BACK}WARD direction
+ *
+ * Returns: newly allocated generic libmount iterator.
+ */
+struct libmnt_iter *mnt_new_iter(int direction)
+{
+	struct libmnt_iter *itr = calloc(1, sizeof(*itr));
+	if (!itr)
+		return NULL;
+	itr->direction = direction;
+	return itr;
+}
+
+/**
+ * mnt_free_iter:
+ * @itr: iterator pointer
+ *
+ * Deallocates iterator.
+ */
+void mnt_free_iter(struct libmnt_iter *itr)
+{
+	free(itr);
+}
+
+/**
+ * mnt_reset_iter:
+ * @itr: iterator pointer
+ * @direction: MNT_INTER_{FOR,BACK}WARD or -1 to keep the derection unchanged
+ *
+ * Resets iterator.
+ */
+void mnt_reset_iter(struct libmnt_iter *itr, int direction)
+{
+	assert(itr);
+
+	if (direction == -1)
+		direction = itr->direction;
+
+	if (itr) {
+		memset(itr, 0, sizeof(*itr));
+		itr->direction = direction;
+	}
+}
+
+/**
+ * mnt_iter_get_direction:
+ * @itr: iterator pointer
+ *
+ * Returns: MNT_INTER_{FOR,BACK}WARD or negative number in case of error.
+ */
+int mnt_iter_get_direction(struct libmnt_iter *itr)
+{
+	assert(itr);
+	return itr ? itr->direction : -EINVAL;
+}