Automatically extract error types and codes for formatting.

lib/ofp-errors.h

@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2008, 2009, 2010 Nicira Networks.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef OFP_ERRORS_H
+#define OFP_ERRORS_H 1
+
+#include <stdint.h>
+
+/* These functions are building blocks for the ofputil_format_error() and
+ * ofputil_error_to_string() functions declared in ofp-util.h.  Those functions
+ * have friendlier interfaces and should usually be preferred. */
+const char *ofp_error_type_to_string(uint16_t value);
+const char *ofp_error_code_to_string(uint16_t type, uint16_t code);
+
+#endif /* ofp-errors.h */