Introduce macros log_bug() and log_error_r()

The log_bug() is to be used when a condition that should never happen
occurs. The log_error_r() will also log the reason of failure, which it
will derive from variable 'result' that must be defined and of type
isc_result_t.

1 files changed, 6 insertions, 0 deletions

diff --git a/src/log.h b/src/log.h
index 6aa9931..0282419 100644
--- a/src/log.h
+++ b/src/log.h
@@ -25,6 +25,12 @@
 #define fatal_error(...) \
     isc_error_fatal(__FILE__, __LINE__, __VA_ARGS__)
 
+#define log_bug(fmt, ...) \
+	log_error("bug in %s(): " fmt, __func__,##__VA_ARGS__)
+
+#define log_error_r(fmt, ...) \
+	log_error(fmt ": %s", ##__VA_ARGS__, isc_result_totext(result))
+
 /* Basic logging functions */
 void log_debug(int level, const char *format, ...) ISC_FORMAT_PRINTF(2, 3);
 void log_error(const char *format, ...) ISC_FORMAT_PRINTF(1, 2);