1 files changed, 45 insertions, 0 deletions
diff --git a/src/backend/utils/init/enbl.c b/src/backend/utils/init/enbl.c
new file mode 100644
index 00000000000..995ab9d9567
--- /dev/null
+++ b/src/backend/utils/init/enbl.c
@@ -0,0 +1,45 @@
+/*-------------------------------------------------------------------------
+ *
+ * enbl.c--
+ *    POSTGRES module enable and disable support code.
+ *
+ * Copyright (c) 1994, Regents of the University of California
+ *
+ *
+ * IDENTIFICATION
+ *    $Header: /cvsroot/pgsql/src/backend/utils/init/Attic/enbl.c,v 1.1.1.1 1996/07/09 06:22:08 scrappy Exp $
+ *
+ *-------------------------------------------------------------------------
+ */
+#include "c.h"
+#include "utils/module.h"		/* where the declarations go */
+
+/*
+ * BypassEnable --
+ *	False iff enable/disable processing is required given on and "*countP."
+ *
+ * Note:
+ *	As a side-effect, *countP is modified.  It should be 0 initially.
+ *
+ * Exceptions:
+ *	BadState if called with pointer to value 0 and false.
+ *	BadArg if "countP" is invalid pointer.
+ *	BadArg if on is invalid.
+ */
+bool
+BypassEnable(int *enableCountInOutP, bool on)
+{
+	AssertArg(PointerIsValid(enableCountInOutP));
+	AssertArg(BoolIsValid(on));
+
+	if (on) {
+		*enableCountInOutP += 1;
+		return ((bool)(*enableCountInOutP >= 2));
+	}
+
+	AssertState(*enableCountInOutP >= 1);
+
+	*enableCountInOutP -= 1;
+
+	return ((bool)(*enableCountInOutP >= 1));
+}