/*
- Copyright 2016 IoT.bzh
+ Copyright (C) 2016, 2017 "IoT.bzh"
author: José Bollo <jose.bollo@iot.bzh>
#pragma once
-#if !defined(VERBOSE_WITH_SYSLOG)
+#include <stdarg.h>
- extern int verbosity;
- extern void verbose(int level, const char *file, int line, const char *fmt, ...);
-
-# define ERROR(...) do{if(verbosity>=0)verbose(3,__FILE__,__LINE__,__VA_ARGS__);}while(0)
-# define WARNING(...) do{if(verbosity>=1)verbose(4,__FILE__,__LINE__,__VA_ARGS__);}while(0)
-# define NOTICE(...) do{if(verbosity>=1)verbose(5,__FILE__,__LINE__,__VA_ARGS__);}while(0)
-# define INFO(...) do{if(verbosity>=2)verbose(6,__FILE__,__LINE__,__VA_ARGS__);}while(0)
-# define DEBUG(...) do{if(verbosity>=3)verbose(7,__FILE__,__LINE__,__VA_ARGS__);}while(0)
-# define LOGUSER(app) NOTICE("Starting user application %s",app)
-# define LOGAUTH(app) NOTICE("Starting auth application %s",app)
+/*
+ verbosity tune the count of reported messages
-#else /* VERBOSE_WITH_SYSLOG is defined */
+ verbosity value : reported messages
+ ----------------+------------------------
+ lesser than 0 : no message at all
+ 0 : ERROR
+ 1 : ERROR, WARNING
+ 2 : ERROR, WARNING, NOTICE
+ 3 : ERROR, WARNING, NOTICE, INFO
+ greater than 3 : ERROR, WARNING, NOTICE, INFO, DEBUG
-# include <syslog.h>
+*/
+extern int verbosity;
-# define LOGUSER(app) openlog(app,LOG_PERROR,LOG_USER)
-# define LOGAUTH(app) openlog(app,LOG_PERROR,LOG_AUTH)
+enum verbosity_levels
+{
+ Verbosity_Level_Error = 0,
+ Verbosity_Level_Warning = 1,
+ Verbosity_Level_Notice = 2,
+ Verbosity_Level_Info = 3,
+ Verbosity_Level_Debug = 4
+};
-# if !defined(NDEBUG)
+extern void verbose_set_name(const char *name, int authority);
- extern int verbosity;
-# define ERROR(...) syslog(LOG_ERR,__VA_ARGS__)
-# define WARNING(...) do{if(verbosity)syslog(LOG_WARNING,__VA_ARGS__);}while(0)
-# define NOTICE(...) do{if(verbosity)syslog(LOG_NOTICE,__VA_ARGS__);}while(0)
-# define INFO(...) do{if(verbosity>1)syslog(LOG_INFO,__VA_ARGS__);}while(0)
-# define DEBUG(...) do{if(verbosity>2)syslog(LOG_DEBUG,__VA_ARGS__);}while(0)
+/*
+ Log level is defined by syslog standard:
+ KERN_EMERG 0 System is unusable
+ KERN_ALERT 1 Action must be taken immediately
+ KERN_CRIT 2 Critical conditions
+ KERN_ERR 3 Error conditions
+ KERN_WARNING 4 Warning conditions
+ KERN_NOTICE 5 Normal but significant condition
+ KERN_INFO 6 Informational
+ KERN_DEBUG 7 Debug-level messages
+*/
-# else
+enum log_levels
+{
+ Log_Level_Emergency = 0,
+ Log_Level_Alert = 1,
+ Log_Level_Critical = 2,
+ Log_Level_Error = 3,
+ Log_Level_Warning = 4,
+ Log_Level_Notice = 5,
+ Log_Level_Info = 6,
+ Log_Level_Debug = 7
+};
+
+extern void verbose(int loglevel, const char *file, int line, const char *function, const char *fmt, ...) __attribute__((format(printf, 5, 6)));
+extern void vverbose(int loglevel, const char *file, int line, const char *function, const char *fmt, va_list args);
+
+#if defined(VERBOSE_NO_DATA)
+# define __VERBOSE__(lvl,...) do{if((lvl)<=Log_Level_Error) verbose(lvl, __FILE__, __LINE__, __func__, __VA_ARGS__)\
+ else verbose(lvl, __FILE__, __LINE__, __func__, NULL);}while(0)
+#elif defined(VERBOSE_NO_DETAILS)
+# define __VERBOSE__(lvl,...) verbose(lvl, NULL, 0, NULL, __VA_ARGS__)
+#else
+# define __VERBOSE__(lvl,...) verbose(lvl, __FILE__, __LINE__, __func__, __VA_ARGS__)
+#endif
- extern void verbose_error(const char *file, int line);
-# define ERROR(...) verbose_error(__FILE__,__LINE__)
-# define WARNING(...) do{/*nothing*/}while(0)
-# define NOTICE(...) do{/*nothing*/}while(0)
-# define INFO(...) do{/*nothing*/}while(0)
-# define DEBUG(...) do{/*nothing*/}while(0)
+# define _VERBOSE_(vlvl,llvl,...) do{ if (verbosity >= vlvl) __VERBOSE__(llvl, __VA_ARGS__); } while(0)
-# endif
+# define ERROR(...) _VERBOSE_(Verbosity_Level_Error, Log_Level_Error, __VA_ARGS__)
+# define WARNING(...) _VERBOSE_(Verbosity_Level_Warning, Log_Level_Warning, __VA_ARGS__)
+# define NOTICE(...) _VERBOSE_(Verbosity_Level_Notice, Log_Level_Notice, __VA_ARGS__)
+# define INFO(...) _VERBOSE_(Verbosity_Level_Info, Log_Level_Info, __VA_ARGS__)
+# define DEBUG(...) _VERBOSE_(Verbosity_Level_Debug, Log_Level_Debug, __VA_ARGS__)
-#endif
+# define LOGUSER(app) verbose_set_name(app,0)
+# define LOGAUTH(app) verbose_set_name(app,1)
+extern void (*verbose_observer)(int loglevel, const char *file, int line, const char *function, const char *fmt, va_list args);