1 files changed, 55 insertions, 0 deletions
diff --git a/src/include/fe_utils/simple_list.h b/src/include/fe_utils/simple_list.h
new file mode 100644
index 00000000000..87d32fbac9f
--- /dev/null
+++ b/src/include/fe_utils/simple_list.h
@@ -0,0 +1,55 @@
+/*-------------------------------------------------------------------------
+ *
+ * Simple list facilities for frontend code
+ *
+ * Data structures for simple lists of OIDs and strings.  The support for
+ * these is very primitive compared to the backend's List facilities, but
+ * it's all we need in, eg, pg_dump.
+ *
+ *
+ * Portions Copyright (c) 1996-2016, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ *
+ * src/include/fe_utils/simple_list.h
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef SIMPLE_LIST_H
+#define SIMPLE_LIST_H
+
+typedef struct SimpleOidListCell
+{
+	struct SimpleOidListCell *next;
+	Oid			val;
+} SimpleOidListCell;
+
+typedef struct SimpleOidList
+{
+	SimpleOidListCell *head;
+	SimpleOidListCell *tail;
+} SimpleOidList;
+
+typedef struct SimpleStringListCell
+{
+	struct SimpleStringListCell *next;
+	bool		touched;		/* true, when this string was searched and
+								 * touched */
+	char		val[FLEXIBLE_ARRAY_MEMBER];		/* null-terminated string here */
+} SimpleStringListCell;
+
+typedef struct SimpleStringList
+{
+	SimpleStringListCell *head;
+	SimpleStringListCell *tail;
+} SimpleStringList;
+
+
+extern void simple_oid_list_append(SimpleOidList *list, Oid val);
+extern bool simple_oid_list_member(SimpleOidList *list, Oid val);
+
+extern void simple_string_list_append(SimpleStringList *list, const char *val);
+extern bool simple_string_list_member(SimpleStringList *list, const char *val);
+
+extern const char *simple_string_list_not_touched(SimpleStringList *list);
+
+#endif   /* SIMPLE_LIST_H */