2 * libuci - Library for the Unified Configuration Interface
3 * Copyright (C) 2008 Felix Fietkau <nbd@openwrt.org>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU Lesser General Public License version 2.1
7 * as published by the Free Software Foundation
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
16 * functions for debug and error handling, for internal use only
20 #define DPRINTF(...) fprintf(stderr, __VA_ARGS__)
26 * throw an uci exception and store the error number
29 #define UCI_THROW(ctx, err) do { \
30 longjmp(ctx->trap, err); \
34 * store the return address for handling exceptions
35 * needs to be called in every externally visible library function
37 * NB: this does not handle recursion at all. Calling externally visible
38 * functions from other uci functions is only allowed at the end of the
41 #define UCI_HANDLE_ERR(ctx) do { \
44 return UCI_ERR_INVAL; \
45 __val = setjmp(ctx->trap); \
53 * check the specified condition.
54 * throw an invalid argument exception if it's false
56 #define UCI_ASSERT(ctx, expr) do { \
58 DPRINTF("[%s:%d] Assertion failed\n", __FILE__, __LINE__); \
59 UCI_THROW(ctx, UCI_ERR_INVAL); \