+/*
+ * Send associated to 'req' a message described by 'fmt' and following parameters
+ * to the journal for the verbosity 'level'.
+ *
+ * 'file', 'line' and 'func' are indicators of position of the code in source files
+ * (see macros __FILE__, __LINE__ and __func__).
+ *
+ * 'level' is defined by syslog standard:
+ * EMERGENCY 0 System is unusable
+ * ALERT 1 Action must be taken immediately
+ * CRITICAL 2 Critical conditions
+ * ERROR 3 Error conditions
+ * WARNING 4 Warning conditions
+ * NOTICE 5 Normal but significant condition
+ * INFO 6 Informational
+ * DEBUG 7 Debug-level messages
+ */
+static inline void afb_req_verbose(struct afb_req req, int level, const char *file, int line, const char * func, const char *fmt, ...) __attribute__((format(printf, 6, 7)));
+static inline void afb_req_verbose(struct afb_req req, int level, const char *file, int line, const char * func, const char *fmt, ...)
+{
+ va_list args;
+ va_start(args, fmt);
+ req.itf->vverbose(req.closure, level, file, line, func, fmt, args);
+ va_end(args);
+}
+
+/* macro for setting file, line and function automatically */
+# if !defined(AFB_BINDING_PRAGMA_NO_VERBOSE_DETAILS)
+#define AFB_REQ_VERBOSE(req,level,...) afb_req_verbose(req,level,__FILE__,__LINE__,__func__,__VA_ARGS__)
+#else
+#define AFB_REQ_VERBOSE(req,level,...) afb_req_verbose(req,level,NULL,0,NULL,__VA_ARGS__)
+#endif