Logo AND Algorithmique Numérique Distribuée

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Remove old style logging macros.
[simgrid.git] / include / xbt / log.h
index 1bd156f..806c341 100644 (file)
@@ -1,56 +1,73 @@
-/* $Id$ */
-
 /* log - a generic logging facility in the spirit of log4j                  */
 
-/* Copyright (c) 2003, 2004 Martin Quinson. All rights reserved.            */
+/* Copyright (c) 2004, 2005, 2006, 2007, 2008, 2009, 2010. The SimGrid Team.
+ * All rights reserved.                                                     */
 
 /* This program is free software; you can redistribute it and/or modify it
  * under the terms of the license (GNU LGPL) which comes with this package. */
 
+/** @addtogroup XBT_log
+ *  @brief A generic logging facility in the spirit of log4j (grounding feature)
+ *
+ *
+ */
+
+/** \defgroup XBT_log_cats Existing log categories
+ *  \ingroup XBT_log
+ *  \brief (automatically extracted) 
+ *     
+ *  This is the list of all existing log categories in SimGrid.
+ *  This list was automatically extracted from the source code by
+ *  the src/xbt_log_extract_hierarchy utility.
+ *     
+ *  You can thus be certain that it is uptodate, but it may somehow
+ *  lack a final manual touch.
+ *  Anyway, nothing's perfect ;)
+ */
+
 /* XBT_LOG_MAYDAY: define this to replace the logging facilities with basic
    printf function. Useful to debug the logging facilities themselves */
 #undef XBT_LOG_MAYDAY
-/*#define XBT_LOG_MAYDAY*/
+//#define XBT_LOG_MAYDAY
 
 #ifndef _XBT_LOG_H_
 #define _XBT_LOG_H_
 
+#include "xbt/misc.h"
 #include <stdarg.h>
-
-#include "xbt/sysdep.h"
-
+SG_BEGIN_DECL()
 /**\brief Log priorities
  * \ingroup XBT_log
  *
  * The different existing priorities.
 */
 typedef enum {
-  xbt_log_priority_none          = 0,  /**< used internally (don't poke with) */
-  xbt_log_priority_trace         = 1, 
-  xbt_log_priority_debug         = 2,  /**< crufty output  */
-  xbt_log_priority_verbose       = 3,  /**< verbose output for the user wanting more */
-  xbt_log_priority_info          = 4,  /**< output about the regular functionning */
-  xbt_log_priority_warning       = 5,  /**< minor issue encountered */
-  xbt_log_priority_error         = 6,  /**< issue encountered */
-  xbt_log_priority_critical      = 7,  /**< major issue encountered */
-
-  xbt_log_priority_infinite      = 8,  /**< value for XBT_LOG_STATIC_THRESHOLD to not log */
-
-  xbt_log_priority_uninitialized = -1  /**< used internally (don't poke with) */
+  xbt_log_priority_none = 0,    /* used internally (don't poke with) */
+  xbt_log_priority_trace = 1,          /**< enter and return of some functions */
+  xbt_log_priority_debug = 2,          /**< crufty output  */
+  xbt_log_priority_verbose = 3,        /**< verbose output for the user wanting more */
+  xbt_log_priority_info = 4,           /**< output about the regular functionning */
+  xbt_log_priority_warning = 5,        /**< minor issue encountered */
+  xbt_log_priority_error = 6,          /**< issue encountered */
+  xbt_log_priority_critical = 7,       /**< major issue encountered */
+
+  xbt_log_priority_infinite = 8,       /**< value for XBT_LOG_STATIC_THRESHOLD to not log */
+
+  xbt_log_priority_uninitialized = -1   /* used internally (don't poke with) */
 } e_xbt_log_priority_t;
-             
 
-/**
- * \define NLOG
- *
- * \note All logging facilities are disabled at compilation time
+
+/*
+ * define NLOG to disable at compilation time any logging request
+ * define NDEBUG to disable at compilation time any logging request of priority below INFO
  */
 
 
 /**
- * XBT_LOG_STATIC_THRESHOLD:
+ * @def XBT_LOG_STATIC_THRESHOLD
+ * @ingroup XBT_log
  *
- * All logging with priority < XBT_LOG_STATIC_THRESHOLD is disabled at
+ * All logging requests with priority < XBT_LOG_STATIC_THRESHOLD are disabled at
  * compile time, i.e., compiled out.
  */
 #ifdef NLOG
@@ -59,69 +76,115 @@ typedef enum {
 
 #  ifdef NDEBUG
 #    define XBT_LOG_STATIC_THRESHOLD xbt_log_priority_verbose
-#  else /* !NLOG && !NDEBUG */
+#  else                         /* !NLOG && !NDEBUG */
 
 #    ifndef XBT_LOG_STATIC_THRESHOLD
 #      define XBT_LOG_STATIC_THRESHOLD xbt_log_priority_none
-#    endif /* !XBT_LOG_STATIC_THRESHOLD */
-#  endif /* NDEBUG */
-#endif /* !defined(NLOG) */
+#    endif                      /* !XBT_LOG_STATIC_THRESHOLD */
+#  endif                        /* NDEBUG */
+#endif                          /* !defined(NLOG) */
 
 /* Transforms a category name to a global variable name. */
-#define _XBT_LOGV(cat)   _XBT_LOG_CONCAT(_gras_this_log_category_does_not_exist__, cat)
+#define _XBT_LOGV(cat)   _XBT_LOG_CONCAT(_simgrid_log_category__, cat)
 #define _XBT_LOG_CONCAT(x,y) x ## y
 
 /* The root of the category hierarchy. */
 #define XBT_LOG_ROOT_CAT   root
 
+/* The whole tree of categories is connected by setting the address of
+ * the parent category as a field of the child one.
+ *
+ * In strict ansi C, we are allowed to initialize a variable with "a
+ * pointer to an lvalue designating an object of static storage
+ * duration" [ISO/IEC 9899:1999, Section 6.6].
+ * 
+ * Unfortunately, Visual C builder does not target any standard
+ * compliance, and C99 is not an exception to this unfortunate rule.
+ * 
+ * So, we work this around by adding a XBT_LOG_CONNECT() macro,
+ * allowing to connect a child to its parent. It should be used
+ * during the initialization of the code, before the child category
+ * gets used.
+ * 
+ * When compiling with gcc, this is not necessary (XBT_LOG_CONNECT
+ * defines to nothing). When compiling with MSVC, this is needed if
+ * you don't want to see your child category become a child of root
+ * directly.
+ */
+#if defined(_MSC_VER)
+# define _XBT_LOG_PARENT_INITIALIZER(parent) NULL
+# define XBT_LOG_CONNECT(parent_cat,child)       _XBT_LOGV(child).parent = &_XBT_LOGV(parent_cat)
+#else
+# define _XBT_LOG_PARENT_INITIALIZER(parent) &_XBT_LOGV(parent)
+# define XBT_LOG_CONNECT(parent_cat,child)      /*  xbt_assert(_XBT_LOGV(child).parent == &_XBT_LOGV(parent_cat)) */
+#endif
+
+/* XBT_LOG_NEW_SUBCATEGORY_helper:
+ * Implementation of XBT_LOG_NEW_SUBCATEGORY, which must declare "extern parent" in addition
+ * to avoid an extra declaration of root when XBT_LOG_NEW_SUBCATEGORY is called by
+ * XBT_LOG_NEW_CATEGORY */
+#define XBT_LOG_NEW_SUBCATEGORY_helper(catName, parent, desc) \
+    XBT_EXPORT_NO_IMPORT(s_xbt_log_category_t) _XBT_LOGV(catName) = {       \
+        _XBT_LOG_PARENT_INITIALIZER(parent),            \
+        NULL /* firstChild */,                          \
+       NULL /* nextSibling */,                         \
+        #catName,                                       \
+        xbt_log_priority_uninitialized /* threshold */, \
+        1 /* isThreshInherited */,                      \
+        NULL /* appender */,                            \
+       NULL /* layout */,                              \
+       1 /* additivity */                              \
+    }
 /**
  * \ingroup XBT_log
  * \param catName name of new category
  * \param parent father of the new category in the tree
  * \param desc string describing the purpose of this category
+ * \hideinitializer
  *
  * Defines a new subcategory of the parent. 
  */
-#define XBT_LOG_NEW_SUBCATEGORY(catName, parent, desc) \
-    extern s_xbt_log_category_t _XBT_LOGV(parent);    \
-    s_xbt_log_category_t _XBT_LOGV(catName) = {       \
-        &_XBT_LOGV(parent), 0, 0,                    \
-        #catName, xbt_log_priority_uninitialized, 1, \
-        0, 1                                          \
-    }
+#define XBT_LOG_NEW_SUBCATEGORY(catName, parent, desc)    \
+    extern s_xbt_log_category_t _XBT_LOGV(parent); \
+    XBT_LOG_NEW_SUBCATEGORY_helper(catName, parent, desc) \
 
 /**
  * \ingroup XBT_log  
  * \param catName name of new category
  * \param desc string describing the purpose of this category
+ * \hideinitializer
  *
  * Creates a new subcategory of the root category.
  */
-#define XBT_LOG_NEW_CATEGORY(catName,desc)  XBT_LOG_NEW_SUBCATEGORY(catName, XBT_LOG_ROOT_CAT, desc)
+# define XBT_LOG_NEW_CATEGORY(catName,desc)  \
+   XBT_LOG_NEW_SUBCATEGORY_helper(catName, XBT_LOG_ROOT_CAT, desc)
+
 
 /**
  * \ingroup XBT_log  
  * \param cname name of the cat
+ * \hideinitializer
  *
  * Indicates which category is the default one.
  */
 
-#if defined(XBT_LOG_MAYDAY) /*|| defined (NLOG) * turning logging off */
+#if defined(XBT_LOG_MAYDAY) || defined(SUPERNOVAE_MODE) /*|| defined (NLOG) * turning logging off */
 # define XBT_LOG_DEFAULT_CATEGORY(cname)
 #else
 # define XBT_LOG_DEFAULT_CATEGORY(cname) \
-        static xbt_log_category_t _XBT_LOGV(default) = &_XBT_LOGV(cname)
+        static xbt_log_category_t _XBT_LOGV(default) _XBT_GNUC_UNUSED = &_XBT_LOGV(cname)
 #endif
 
 /**
  * \ingroup XBT_log  
  * \param cname name of the cat
  * \param desc string describing the purpose of this category
+ * \hideinitializer
  *
  * Creates a new subcategory of the root category and makes it the default
  * (used by macros that don't explicitly specify a category).
  */
-#define XBT_LOG_NEW_DEFAULT_CATEGORY(cname,desc)        \
+# define XBT_LOG_NEW_DEFAULT_CATEGORY(cname,desc)        \
     XBT_LOG_NEW_CATEGORY(cname,desc);                   \
     XBT_LOG_DEFAULT_CATEGORY(cname)
 
@@ -130,6 +193,7 @@ typedef enum {
  * \param cname name of the cat
  * \param parent name of the parent
  * \param desc string describing the purpose of this category
+ * \hideinitializer
  *
  * Creates a new subcategory of the parent category and makes it the default
  * (used by macros that don't explicitly specify a category).
@@ -141,6 +205,7 @@ typedef enum {
 /**
  * \ingroup XBT_log  
  * \param cname name of the cat
+ * \hideinitializer
  *
  * Indicates that a category you'll use in this file (to get subcategories of it, 
  * for example) really lives in another file.
@@ -149,92 +214,147 @@ typedef enum {
 #define XBT_LOG_EXTERNAL_CATEGORY(cname) \
    extern s_xbt_log_category_t _XBT_LOGV(cname)
 
+/**
+ * \ingroup XBT_log
+ * \param cname name of the cat
+ * \hideinitializer
+ *
+ * Indicates that the default category of this file was declared in another file.
+ */
+
+#define XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(cname) \
+   XBT_LOG_EXTERNAL_CATEGORY(cname);\
+   XBT_LOG_DEFAULT_CATEGORY(cname)
+
 /* Functions you may call */
 
-extern void xbt_log_control_set(const char* cs);
+XBT_PUBLIC(void) xbt_log_control_set(const char *cs);
 
 /* Forward declarations */
-typedef struct xbt_log_appender_s s_xbt_log_appender_t,*xbt_log_appender_t;
-typedef struct xbt_log_event_s    s_xbt_log_event_t,   *xbt_log_event_t;
-typedef struct xbt_log_category_s s_xbt_log_category_t,*xbt_log_category_t;
+typedef struct xbt_log_appender_s s_xbt_log_appender_t,
+    *xbt_log_appender_t;
+typedef struct xbt_log_layout_s s_xbt_log_layout_t, *xbt_log_layout_t;
+typedef struct xbt_log_event_s s_xbt_log_event_t, *xbt_log_event_t;
+typedef struct xbt_log_category_s s_xbt_log_category_t,
+    *xbt_log_category_t;
 
-/**
+/*
  * Do NOT access any members of this structure directly. FIXME: move to private?
  */
+#ifdef _XBT_WIN32
+#define XBT_LOG_BUFF_SIZE  16384        /* Size of the static string in which we build the log string */
+#else
+#define XBT_LOG_BUFF_SIZE 2048  /* Size of the static string in which we build the log string */
+#endif
 struct xbt_log_category_s {
-            xbt_log_category_t parent;
-/*@null@*/  xbt_log_category_t firstChild; 
-/*@null@*/  xbt_log_category_t nextSibling;
-            const char *name;
-            int threshold;
-            int isThreshInherited;
-/*@null@*/  xbt_log_appender_t appender;
-            int willLogToParent;
-  /* TODO: Formats? */
-};
-
-struct xbt_log_appender_s {
-  void (*do_append) (xbt_log_appender_t thisLogAppender,
-                   xbt_log_event_t event, const char *fmt);
-  void *appender_data;
+  xbt_log_category_t parent;
+  xbt_log_category_t firstChild;
+  xbt_log_category_t nextSibling;
+  const char *name;
+  int threshold;
+  int isThreshInherited;
+  xbt_log_appender_t appender;
+  xbt_log_layout_t layout;
+  int additivity;
 };
 
 struct xbt_log_event_s {
   xbt_log_category_t cat;
   e_xbt_log_priority_t priority;
-  const charfileName;
-  const charfunctionName;
+  const char *fileName;
+  const char *functionName;
   int lineNum;
   va_list ap;
+  va_list ap_copy;              /* need a copy to launch dynamic layouts when the static ones overflowed */
+#ifdef _XBT_WIN32
+  char *buffer;
+#else
+  char buffer[XBT_LOG_BUFF_SIZE];
+#endif
 };
 
 /**
- * \ingroup XBT_log  
+ * \ingroup XBT_log_implem
  * \param cat the category (not only its name, but the variable)
  * \param thresholdPriority the priority
  *
  * Programatically alters a category's threshold priority (don't use).
  */
-extern void xbt_log_threshold_set(xbt_log_category_t cat,
-                                  e_xbt_log_priority_t thresholdPriority);
+XBT_PUBLIC(void) xbt_log_threshold_set(xbt_log_category_t cat,
+                                       e_xbt_log_priority_t
+                                       thresholdPriority);
 
 /**
- * \ingroup XBT_log  
+ * \ingroup XBT_log_implem  
  * \param cat the category (not only its name, but the variable)
- * \param parent the parent cat
+ * \param app the appender
+ *
+ * Programatically sets the category's appender.
+ * (the prefered interface is throught xbt_log_control_set())
  *
- * Programatically alter a category's parent (don't use).
  */
-extern void xbt_log_parent_set(xbt_log_category_t cat,
-                               xbt_log_category_t parent);
+XBT_PUBLIC(void) xbt_log_appender_set(xbt_log_category_t cat,
+                                      xbt_log_appender_t app);
+/**
+ * \ingroup XBT_log_implem  
+ * \param cat the category (not only its name, but the variable)
+ * \param lay the layout
+ *
+ * Programatically sets the category's layout.
+ * (the prefered interface is throught xbt_log_control_set())
+ *
+ */
+XBT_PUBLIC(void) xbt_log_layout_set(xbt_log_category_t cat,
+                                    xbt_log_layout_t lay);
 
 /**
- * \ingroup XBT_log  
+ * \ingroup XBT_log_implem  
  * \param cat the category (not only its name, but the variable)
- * \param app the appender
+ * \param additivity whether logging actions must be passed to parent.
+ *
+ * Programatically sets whether the logging actions must be passed to 
+ * the parent category.
+ * (the prefered interface is throught xbt_log_control_set())
  *
- * Programatically sets the category's appender (don't use).
  */
-extern void xbt_log_appender_set(xbt_log_category_t cat,
-                                 xbt_log_appender_t app);
+XBT_PUBLIC(void) xbt_log_additivity_set(xbt_log_category_t cat,
+                                        int additivity);
 
-/* Functions that you shouldn't call. */
-extern void _xbt_log_event_log(xbt_log_event_t ev,
-                               const char *fmt,
-                               ...) _XBT_GNUC_PRINTF(2,3);
+/** @brief create a new simple layout 
+ *
+ * This layout is not as flexible as the pattern one
+ */
+XBT_PUBLIC(xbt_log_layout_t) xbt_log_layout_simple_new(char *arg);
+XBT_PUBLIC(xbt_log_layout_t) xbt_log_layout_format_new(char *arg);
+XBT_PUBLIC(xbt_log_appender_t) xbt_log_appender_file_new(char *arg);
+
+
+/* ********************************** */
+/* Functions that you shouldn't call  */
+/* ********************************** */
+XBT_PUBLIC(void) _xbt_log_event_log(xbt_log_event_t ev,
+                                    const char *fmt,
+                                    ...) _XBT_GNUC_PRINTF(2, 3);
 
-extern int _xbt_log_cat_init(e_xbt_log_priority_t priority, 
-                             xbt_log_category_t   category);
+XBT_PUBLIC(int) _xbt_log_cat_init(xbt_log_category_t category,
+                                  e_xbt_log_priority_t priority);
+
+
+XBT_PUBLIC_DATA(s_xbt_log_category_t) _XBT_LOGV(XBT_LOG_ROOT_CAT);
 
 
-extern s_xbt_log_category_t _XBT_LOGV(XBT_LOG_ROOT_CAT);
-XBT_LOG_EXTERNAL_CATEGORY(GRAS);
 extern xbt_log_appender_t xbt_log_default_appender;
+extern xbt_log_layout_t xbt_log_default_layout;
+
+/* ********************** */
+/* Public functions again */
+/* ********************** */
 
 /**
  * \ingroup XBT_log 
  * \param catName name of the category
- * \param priority minimal priority to be enabled to return true
+ * \param priority minimal priority to be enabled to return true (must be #e_xbt_log_priority_t)
+ * \hideinitializer
  *
  * Returns true if the given priority is enabled for the category.
  * If you have expensive expressions that are computed outside of the log
@@ -255,7 +375,7 @@ extern xbt_log_appender_t xbt_log_default_appender;
        (priority >= XBT_LOG_STATIC_THRESHOLD                 \
         && priority >= catv.threshold                         \
         && (catv.threshold != xbt_log_priority_uninitialized \
-            || _xbt_log_cat_init(priority, &catv)) )
+            || _xbt_log_cat_init(&catv, priority)) )
 
 /*
  * Internal Macros
@@ -269,272 +389,144 @@ extern xbt_log_appender_t xbt_log_default_appender;
  * code. 
  * Setting the LogEvent's valist member is done inside _log_logEvent.
  */
-
-#define _XBT_LOG_PRE(catv, priority) do {                              \
-     if (_XBT_LOG_ISENABLEDV(catv, priority)) {                        \
-         s_xbt_log_event_t _log_ev =                                   \
-             {&(catv),priority,__FILE__,_XBT_GNUC_FUNCTION,__LINE__};         \
-         _xbt_log_event_log(&_log_ev
-
-#define _XBT_LOG_POST                          \
-                        );                      \
-     } } while(0)
-
-
-/* Logging Macros */
-
-#ifdef XBT_LOG_MAYDAY
-# define CLOG0(c, p, f)                   fprintf(stderr,"%s:%d:" f "\n",__FILE__,__LINE__)
-# define CLOG1(c, p, f,a1)                fprintf(stderr,"%s:%d:" f "\n",__FILE__,__LINE__,a1)               
-# define CLOG2(c, p, f,a1,a2)             fprintf(stderr,"%s:%d:" f "\n",__FILE__,__LINE__,a1,a2)            
-# define CLOG3(c, p, f,a1,a2,a3)          fprintf(stderr,"%s:%d:" f "\n",__FILE__,__LINE__,a1,a2,a3)         
-# define CLOG4(c, p, f,a1,a2,a3,a4)       fprintf(stderr,"%s:%d:" f "\n",__FILE__,__LINE__,a1,a2,a3,a4)      
-# define CLOG5(c, p, f,a1,a2,a3,a4,a5)    fprintf(stderr,"%s:%d:" f "\n",__FILE__,__LINE__,a1,a2,a3,a4,a5)   
-# define CLOG6(c, p, f,a1,a2,a3,a4,a5,a6) fprintf(stderr,"%s:%d:" f "\n",__FILE__,__LINE__,a1,a2,a3,a4,a5,a6)
-# define CLOG7(c, p, f,a1,a2,a3,a4,a5,a6,a7) fprintf(stderr,"%s:%d:" f "\n",__FILE__,__LINE__,a1,a2,a3,a4,a5,a6,a7)
-# define CLOG8(c, p, f,a1,a2,a3,a4,a5,a6,a7,a8) fprintf(stderr,"%s:%d:" f "\n",__FILE__,__LINE__,a1,a2,a3,a4,a5,a6,a7,a8)
+#ifdef _XBT_WIN32
+#include <stdlib.h>             /* calloc */
+#define _XBT_LOG_EV_BUFFER_ZERO() \
+  _log_ev.buffer = (char*) calloc(XBT_LOG_BUFF_SIZE + 1, sizeof(char))
 #else
-# define CLOG0(c, p, f)                   _XBT_LOG_PRE(_XBT_LOGV(c),p) ,f _XBT_LOG_POST                   
-# define CLOG1(c, p, f,a1)                _XBT_LOG_PRE(_XBT_LOGV(c),p) ,f,a1 _XBT_LOG_POST                
-# define CLOG2(c, p, f,a1,a2)             _XBT_LOG_PRE(_XBT_LOGV(c),p) ,f,a1,a2 _XBT_LOG_POST
-# define CLOG3(c, p, f,a1,a2,a3)          _XBT_LOG_PRE(_XBT_LOGV(c),p) ,f,a1,a2,a3 _XBT_LOG_POST
-# define CLOG4(c, p, f,a1,a2,a3,a4)       _XBT_LOG_PRE(_XBT_LOGV(c),p) ,f,a1,a2,a3,a4 _XBT_LOG_POST
-# define CLOG5(c, p, f,a1,a2,a3,a4,a5)    _XBT_LOG_PRE(_XBT_LOGV(c),p) ,f,a1,a2,a3,a4,a5 _XBT_LOG_POST
-# define CLOG6(c, p, f,a1,a2,a3,a4,a5,a6) _XBT_LOG_PRE(_XBT_LOGV(c),p) ,f,a1,a2,a3,a4,a5,a6 _XBT_LOG_POST
-# define CLOG7(c, p, f,a1,a2,a3,a4,a5,a6,a7) _XBT_LOG_PRE(_XBT_LOGV(c),p) ,f,a1,a2,a3,a4,a5,a6,a7 _XBT_LOG_POST
-# define CLOG8(c, p, f,a1,a2,a3,a4,a5,a6,a7,a8) _XBT_LOG_PRE(_XBT_LOGV(c),p) ,f,a1,a2,a3,a4,a5,a6,a7,a8 _XBT_LOG_POST
+#include <string.h>             /* memset */
+#define _XBT_LOG_EV_BUFFER_ZERO() \
+  memset(_log_ev.buffer, 0, XBT_LOG_BUFF_SIZE)
 #endif
 
-#define CDEBUG0(c, f)                   CLOG0(c, xbt_log_priority_debug, f)
-#define CDEBUG1(c, f,a1)                CLOG1(c, xbt_log_priority_debug, f,a1)
-#define CDEBUG2(c, f,a1,a2)             CLOG2(c, xbt_log_priority_debug, f,a1,a2)
-#define CDEBUG3(c, f,a1,a2,a3)          CLOG3(c, xbt_log_priority_debug, f,a1,a2,a3)
-#define CDEBUG4(c, f,a1,a2,a3,a4)       CLOG4(c, xbt_log_priority_debug, f,a1,a2,a3,a4)
-#define CDEBUG5(c, f,a1,a2,a3,a4,a5)    CLOG5(c, xbt_log_priority_debug, f,a1,a2,a3,a4,a5)
-#define CDEBUG6(c, f,a1,a2,a3,a4,a5,a6) CLOG6(c, xbt_log_priority_debug, f,a1,a2,a3,a4,a5,a6)
-#define CDEBUG7(c, f,a1,a2,a3,a4,a5,a6,a7) CLOG7(c, xbt_log_priority_debug, f,a1,a2,a3,a4,a5,a6,a7)
-#define CDEBUG8(c, f,a1,a2,a3,a4,a5,a6,a7,a8) CLOG8(c, xbt_log_priority_debug, f,a1,a2,a3,a4,a5,a6,a7,a8)
-
-#define CVERB0(c, f)                   CLOG0(c, xbt_log_priority_verbose, f)
-#define CVERB1(c, f,a1)                CLOG1(c, xbt_log_priority_verbose, f,a1)
-#define CVERB2(c, f,a1,a2)             CLOG2(c, xbt_log_priority_verbose, f,a1,a2)
-#define CVERB3(c, f,a1,a2,a3)          CLOG3(c, xbt_log_priority_verbose, f,a1,a2,a3)
-#define CVERB4(c, f,a1,a2,a3,a4)       CLOG4(c, xbt_log_priority_verbose, f,a1,a2,a3,a4)
-#define CVERB5(c, f,a1,a2,a3,a4,a5)    CLOG5(c, xbt_log_priority_verbose, f,a1,a2,a3,a4,a5)
-#define CVERB6(c, f,a1,a2,a3,a4,a5,a6) CLOG6(c, xbt_log_priority_verbose, f,a1,a2,a3,a4,a5,a6)
-
-#define CINFO0(c, f)                   CLOG0(c, xbt_log_priority_info, f)
-#define CINFO1(c, f,a1)                CLOG1(c, xbt_log_priority_info, f,a1)
-#define CINFO2(c, f,a1,a2)             CLOG2(c, xbt_log_priority_info, f,a1,a2)
-#define CINFO3(c, f,a1,a2,a3)          CLOG3(c, xbt_log_priority_info, f,a1,a2,a3)
-#define CINFO4(c, f,a1,a2,a3,a4)       CLOG4(c, xbt_log_priority_info, f,a1,a2,a3,a4)
-#define CINFO5(c, f,a1,a2,a3,a4,a5)    CLOG5(c, xbt_log_priority_info, f,a1,a2,a3,a4,a5)
-#define CINFO6(c, f,a1,a2,a3,a4,a5,a6) CLOG6(c, xbt_log_priority_info, f,a1,a2,a3,a4,a5,a6)
-
-#define CWARN0(c, f)                   CLOG0(c, xbt_log_priority_warning, f)
-#define CWARN1(c, f,a1)                CLOG1(c, xbt_log_priority_warning, f,a1)
-#define CWARN2(c, f,a1,a2)             CLOG2(c, xbt_log_priority_warning, f,a1,a2)
-#define CWARN3(c, f,a1,a2,a3)          CLOG3(c, xbt_log_priority_warning, f,a1,a2,a3)
-#define CWARN4(c, f,a1,a2,a3,a4)       CLOG4(c, xbt_log_priority_warning, f,a1,a2,a3,a4)
-#define CWARN5(c, f,a1,a2,a3,a4,a5)    CLOG5(c, xbt_log_priority_warning, f,a1,a2,a3,a4,a5)
-#define CWARN6(c, f,a1,a2,a3,a4,a5,a6) CLOG6(c, xbt_log_priority_warning, f,a1,a2,a3,a4,a5,a6)
-
-#define CERROR0(c, f)                   CLOG0(c, xbt_log_priority_error, f)
-#define CERROR1(c, f,a1)                CLOG1(c, xbt_log_priority_error, f,a1)
-#define CERROR2(c, f,a1,a2)             CLOG2(c, xbt_log_priority_error, f,a1,a2)
-#define CERROR3(c, f,a1,a2,a3)          CLOG3(c, xbt_log_priority_error, f,a1,a2,a3)
-#define CERROR4(c, f,a1,a2,a3,a4)       CLOG4(c, xbt_log_priority_error, f,a1,a2,a3,a4)
-#define CERROR5(c, f,a1,a2,a3,a4,a5)    CLOG5(c, xbt_log_priority_error, f,a1,a2,a3,a4,a5)
-#define CERROR6(c, f,a1,a2,a3,a4,a5,a6) CLOG6(c, xbt_log_priority_error, f,a1,a2,a3,a4,a5,a6)
-
-#define CCRITICAL0(c, f)                   CLOG0(c, xbt_log_priority_critical, f)
-#define CCRITICAL1(c, f,a1)                CLOG1(c, xbt_log_priority_critical, f,a1)
-#define CCRITICAL2(c, f,a1,a2)             CLOG2(c, xbt_log_priority_critical, f,a1,a2)
-#define CCRITICAL3(c, f,a1,a2,a3)          CLOG3(c, xbt_log_priority_critical, f,a1,a2,a3)
-#define CCRITICAL4(c, f,a1,a2,a3,a4)       CLOG4(c, xbt_log_priority_critical, f,a1,a2,a3,a4)
-#define CCRITICAL5(c, f,a1,a2,a3,a4,a5)    CLOG5(c, xbt_log_priority_critical, f,a1,a2,a3,a4,a5)
-#define CCRITICAL6(c, f,a1,a2,a3,a4,a5,a6) CLOG6(c, xbt_log_priority_critical, f,a1,a2,a3,a4,a5,a6)
+/* Logging Macros */
 
 #ifdef XBT_LOG_MAYDAY
-# define LOG0(p, f)                   fprintf(stderr,"%s:%d:" f "\n",__FILE__,__LINE__)
-# define LOG1(p, f,a1)                fprintf(stderr,"%s:%d:" f "\n",__FILE__,__LINE__,a1)               
-# define LOG2(p, f,a1,a2)             fprintf(stderr,"%s:%d:" f "\n",__FILE__,__LINE__,a1,a2)            
-# define LOG3(p, f,a1,a2,a3)          fprintf(stderr,"%s:%d:" f "\n",__FILE__,__LINE__,a1,a2,a3)         
-# define LOG4(p, f,a1,a2,a3,a4)       fprintf(stderr,"%s:%d:" f "\n",__FILE__,__LINE__,a1,a2,a3,a4)      
-# define LOG5(p, f,a1,a2,a3,a4,a5)    fprintf(stderr,"%s:%d:" f "\n",__FILE__,__LINE__,a1,a2,a3,a4,a5)   
-# define LOG6(p, f,a1,a2,a3,a4,a5,a6) fprintf(stderr,"%s:%d:" f "\n",__FILE__,__LINE__,a1,a2,a3,a4,a5,a6)
-# define LOG7(p, f,a1,a2,a3,a4,a5,a6,a7) fprintf(stderr,"%s:%d:" f "\n",__FILE__,__LINE__,a1,a2,a3,a4,a5,a6,a7)
-# define LOG8(p, f,a1,a2,a3,a4,a5,a6,a7,a8) fprintf(stderr,"%s:%d:" f "\n",__FILE__,__LINE__,a1,a2,a3,a4,a5,a6,a7,a8)
+# define XBT_CLOG_(cat, prio, f, ...) \
+  fprintf(stderr,"%s:%d:" f "%c", __FILE__, __LINE__, __VA_ARGS__)
+# define XBT_CLOG(cat, prio, ...) XBT_CLOG_(cat, prio, __VA_ARGS__, '\n')
+# define XBT_LOG(...) XBT_CLOG(0, __VA_ARGS__)
 #else
-# define LOG0(p, f)                   _XBT_LOG_PRE((*_XBT_LOGV(default)),p) ,f _XBT_LOG_POST
-# define LOG1(p, f,a1)                _XBT_LOG_PRE((*_XBT_LOGV(default)),p) ,f,a1 _XBT_LOG_POST
-# define LOG2(p, f,a1,a2)             _XBT_LOG_PRE((*_XBT_LOGV(default)),p) ,f,a1,a2 _XBT_LOG_POST
-# define LOG3(p, f,a1,a2,a3)          _XBT_LOG_PRE((*_XBT_LOGV(default)),p) ,f,a1,a2,a3 _XBT_LOG_POST
-# define LOG4(p, f,a1,a2,a3,a4)       _XBT_LOG_PRE((*_XBT_LOGV(default)),p) ,f,a1,a2,a3,a4 _XBT_LOG_POST
-# define LOG5(p, f,a1,a2,a3,a4,a5)    _XBT_LOG_PRE((*_XBT_LOGV(default)),p) ,f,a1,a2,a3,a4,a5 _XBT_LOG_POST
-# define LOG6(p, f,a1,a2,a3,a4,a5,a6) _XBT_LOG_PRE((*_XBT_LOGV(default)),p) ,f,a1,a2,a3,a4,a5,a6 _XBT_LOG_POST
-# define LOG7(p, f,a1,a2,a3,a4,a5,a6,a7) _XBT_LOG_PRE((*_XBT_LOGV(default)),p) ,f,a1,a2,a3,a4,a5,a6,a7 _XBT_LOG_POST
-# define LOG8(p, f,a1,a2,a3,a4,a5,a6,a7,a8) _XBT_LOG_PRE((*_XBT_LOGV(default)),p) ,f,a1,a2,a3,a4,a5,a6,a7,a8 _XBT_LOG_POST
+# define XBT_CLOG_(catv, prio, ...)                                     \
+  do {                                                                  \
+    if (_XBT_LOG_ISENABLEDV(catv, prio)) {                              \
+      s_xbt_log_event_t _log_ev;                                        \
+      _log_ev.cat = &(catv);                                            \
+      _log_ev.priority = (prio);                                        \
+      _log_ev.fileName = __FILE__;                                      \
+      _log_ev.functionName = _XBT_FUNCTION;                             \
+      _log_ev.lineNum = __LINE__;                                       \
+      _XBT_LOG_EV_BUFFER_ZERO();                                        \
+      _xbt_log_event_log(&_log_ev, __VA_ARGS__);                        \
+    }                                                                   \
+  }  while (0)
+# define XBT_CLOG(cat, prio, ...) XBT_CLOG_(_XBT_LOGV(cat), prio, __VA_ARGS__)
+# define XBT_LOG(...) XBT_CLOG_((*_XBT_LOGV(default)), __VA_ARGS__)
 #endif
 
-/** \name DEBUG
- * \ingroup XBT_log
- * Log something to the current default category under the debug priority.
- * \param f the format string
- * \param a1 first argument of the format
- * \param a2 second argument of the format
- * \param a3 third argument of the format
- * \param a4 fourth argument of the format
- * \param a5 fifth argument of the format
- * \param a6 sixth argument of the format
- *
- * The macros DEBUG0 ... DEBUG5 naturally also exist, but are not listed here 
- * for sake of clarity. They just differ in the number of arguments passed
- * along with the format string.
- */
-/*@{*/
-#define DEBUG0(f)                   LOG0(xbt_log_priority_debug, f)
-#define DEBUG1(f,a1)                LOG1(xbt_log_priority_debug, f,a1)
-#define DEBUG2(f,a1,a2)             LOG2(xbt_log_priority_debug, f,a1,a2)
-#define DEBUG3(f,a1,a2,a3)          LOG3(xbt_log_priority_debug, f,a1,a2,a3)
-#define DEBUG4(f,a1,a2,a3,a4)       LOG4(xbt_log_priority_debug, f,a1,a2,a3,a4)
-#define DEBUG5(f,a1,a2,a3,a4,a5)    LOG5(xbt_log_priority_debug, f,a1,a2,a3,a4,a5)
-#define DEBUG6(f,a1,a2,a3,a4,a5,a6) LOG6(xbt_log_priority_debug, f,a1,a2,a3,a4,a5,a6)
-#define DEBUG7(f,a1,a2,a3,a4,a5,a6,a7) LOG7(xbt_log_priority_debug, f,a1,a2,a3,a4,a5,a6,a7)
-#define DEBUG8(f,a1,a2,a3,a4,a5,a6,a7,a8) LOG8(xbt_log_priority_debug, f,a1,a2,a3,a4,a5,a6,a7,a8)
-/*@}*/
-
-/** \name VERB
- * \ingroup XBT_log
- * Log something to the current default category under the verbose priority.
- * \param f the format string
- * \param a1 first argument of the format
- * \param a2 second argument of the format
- * \param a3 third argument of the format
- * \param a4 fourth argument of the format
- * \param a5 fifth argument of the format
- * \param a6 sixth argument of the format
- *
- * The macros VERB0 ... VERB5 naturally also exist, but are not listed here 
- * for sake of clarity. They just differ in the number of arguments passed
- * along with the format string.
- */
-/*@{*/
-#define VERB0(f)                   LOG0(xbt_log_priority_verbose, f)
-#define VERB1(f,a1)                LOG1(xbt_log_priority_verbose, f,a1)
-#define VERB2(f,a1,a2)             LOG2(xbt_log_priority_verbose, f,a1,a2)
-#define VERB3(f,a1,a2,a3)          LOG3(xbt_log_priority_verbose, f,a1,a2,a3)
-#define VERB4(f,a1,a2,a3,a4)       LOG4(xbt_log_priority_verbose, f,a1,a2,a3,a4)
-#define VERB5(f,a1,a2,a3,a4,a5)    LOG5(xbt_log_priority_verbose, f,a1,a2,a3,a4,a5)
-#define VERB6(f,a1,a2,a3,a4,a5,a6) LOG6(xbt_log_priority_verbose, f,a1,a2,a3,a4,a5,a6)
-/*@}*/
-
-/** \name INFO
- * \ingroup XBT_log
- * Log something to the current default category under the info priority.
- * \param f the format string
- * \param a1 first argument of the format
- * \param a2 second argument of the format
- * \param a3 third argument of the format
- * \param a4 fourth argument of the format
- * \param a5 fifth argument of the format
- * \param a6 sixth argument of the format
- *
- * The macros INFO0 ... INFO5 naturally also exist, but are not listed here 
- * for sake of clarity. They just differ in the number of arguments passed
- * along with the format string.
- */
-/*@{*/
-#define INFO0(f)                   LOG0(xbt_log_priority_info, f)
-#define INFO1(f,a1)                LOG1(xbt_log_priority_info, f,a1)
-#define INFO2(f,a1,a2)             LOG2(xbt_log_priority_info, f,a1,a2)
-#define INFO3(f,a1,a2,a3)          LOG3(xbt_log_priority_info, f,a1,a2,a3)
-#define INFO4(f,a1,a2,a3,a4)       LOG4(xbt_log_priority_info, f,a1,a2,a3,a4)
-#define INFO5(f,a1,a2,a3,a4,a5)    LOG5(xbt_log_priority_info, f,a1,a2,a3,a4,a5)
-#define INFO6(f,a1,a2,a3,a4,a5,a6) LOG6(xbt_log_priority_info, f,a1,a2,a3,a4,a5,a6)
-/*@}*/
-
-/** \name WARN
- * \ingroup XBT_log
- * Log something to the current default category under the warning priority.
- * \param f the format string
- * \param a1 first argument of the format
- * \param a2 second argument of the format
- * \param a3 third argument of the format
- * \param a4 fourth argument of the format
- * \param a5 fifth argument of the format
- * \param a6 sixth argument of the format
- *
- * The macros WARN0 ... WARN5 naturally also exist, but are not listed here 
- * for sake of clarity. They just differ in the number of arguments passed
- * along with the format string.
- */
-/*@{*/
-#define WARN0(f)                   LOG0(xbt_log_priority_warning, f)
-#define WARN1(f,a1)                LOG1(xbt_log_priority_warning, f,a1)
-#define WARN2(f,a1,a2)             LOG2(xbt_log_priority_warning, f,a1,a2)
-#define WARN3(f,a1,a2,a3)          LOG3(xbt_log_priority_warning, f,a1,a2,a3)
-#define WARN4(f,a1,a2,a3,a4)       LOG4(xbt_log_priority_warning, f,a1,a2,a3,a4)
-#define WARN5(f,a1,a2,a3,a4,a5)    LOG5(xbt_log_priority_warning, f,a1,a2,a3,a4,a5)
-#define WARN6(f,a1,a2,a3,a4,a5,a6) LOG6(xbt_log_priority_warning, f,a1,a2,a3,a4,a5,a6)
-/*@}*/
-
-/** \name ERROR
- * \ingroup XBT_log
- * Log something to the current default category under the error priority.
+/** @ingroup XBT_log
+ *  @hideinitializer
+ * \param c the category on which to log
  * \param f the format string
- * \param a1 first argument of the format
- * \param a2 second argument of the format
- * \param a3 third argument of the format
- * \param a4 fourth argument of the format
- * \param a5 fifth argument of the format
- * \param a6 sixth argument of the format
- *
- * The macros ERROR0 ... ERROR5 naturally also exist, but are not listed here 
- * for sake of clarity. They just differ in the number of arguments passed
- * along with the format string.
- */
-/*@{*/
-#define ERROR0(f)                   LOG0(xbt_log_priority_error, f)
-#define ERROR1(f,a1)                LOG1(xbt_log_priority_error, f,a1)
-#define ERROR2(f,a1,a2)             LOG2(xbt_log_priority_error, f,a1,a2)
-#define ERROR3(f,a1,a2,a3)          LOG3(xbt_log_priority_error, f,a1,a2,a3)
-#define ERROR4(f,a1,a2,a3,a4)       LOG4(xbt_log_priority_error, f,a1,a2,a3,a4)
-#define ERROR5(f,a1,a2,a3,a4,a5)    LOG5(xbt_log_priority_error, f,a1,a2,a3,a4,a5)
-#define ERROR6(f,a1,a2,a3,a4,a5,a6) LOG6(xbt_log_priority_error, f,a1,a2,a3,a4,a5,a6)
-/*@}*/
-
-/** \name CRITICAL
- * \ingroup XBT_log
- * Log something to the current default category under the critical priority.
+ * \param ... arguments of the format
+ *  @brief Log an event at the DEBUG priority on the specified category with these args.
+ */
+#define XBT_CDEBUG(c, ...) XBT_CLOG(c, xbt_log_priority_debug, __VA_ARGS__)
+
+/** @ingroup XBT_log
+ *  @hideinitializer
+ *  @brief Log an event at the VERB priority on the specified category with these args.
+ */
+#define XBT_CVERB(c, ...) XBT_CLOG(c, xbt_log_priority_verbose, __VA_ARGS__)
+
+/** @ingroup XBT_log
+ *  @hideinitializer
+ *  @brief Log an event at the INFO priority on the specified category with these args.
+ */
+#define XBT_CINFO(c, ...) XBT_CLOG(c, xbt_log_priority_info, __VA_ARGS__)
+
+/** @ingroup XBT_log
+ *  @hideinitializer
+ *  @brief Log an event at the WARN priority on the specified category with these args.
+ */
+#define XBT_CWARN(c, ...) XBT_CLOG(c, xbt_log_priority_warning, __VA_ARGS__)
+
+/** @ingroup XBT_log
+ *  @hideinitializer
+ *  @brief Log an event at the ERROR priority on the specified category with these args.
+ */
+#define XBT_CERROR(c, ...) XBT_CLOG(c, xbt_log_priority_error, __VA_ARGS__)
+
+/** @ingroup XBT_log
+ *  @hideinitializer
+ *  @brief Log an event at the CRITICAL priority on the specified category with these args (CCRITICALn exists for any n<10).
+ */
+#define XBT_CCRITICAL(c, ...) XBT_CLOG(c, xbt_log_priority_critical, __VA_ARGS__)
+
+/** @ingroup XBT_log
+ *  @hideinitializer
  * \param f the format string
- * \param a1 first argument of the format
- * \param a2 second argument of the format
- * \param a3 third argument of the format
- * \param a4 fourth argument of the format
- * \param a5 fifth argument of the format
- * \param a6 sixth argument of the format
- *
- * The macros CRITICAL0 ... CRITICAL5 naturally also exist, but are not listed here 
- * for sake of clarity. They just differ in the number of arguments passed
- * along with the format string.
- */
-/*@{*/
-#define CRITICAL0(f)                   LOG0(xbt_log_priority_critical, f)
-#define CRITICAL1(f,a1)                LOG1(xbt_log_priority_critical, f,a1)
-#define CRITICAL2(f,a1,a2)             LOG2(xbt_log_priority_critical, f,a1,a2)
-#define CRITICAL3(f,a1,a2,a3)          LOG3(xbt_log_priority_critical, f,a1,a2,a3)
-#define CRITICAL4(f,a1,a2,a3,a4)       LOG4(xbt_log_priority_critical, f,a1,a2,a3,a4)
-#define CRITICAL5(f,a1,a2,a3,a4,a5)    LOG5(xbt_log_priority_critical, f,a1,a2,a3,a4,a5)
-#define CRITICAL6(f,a1,a2,a3,a4,a5,a6) LOG6(xbt_log_priority_critical, f,a1,a2,a3,a4,a5,a6)
-/*@}*/
-
-#define XBT_IN               LOG1(xbt_log_priority_trace, ">> begin of %s",     _XBT_GNUC_FUNCTION)
-#define XBT_IN1(fmt,a)       LOG2(xbt_log_priority_trace, ">> begin of %s" fmt, _XBT_GNUC_FUNCTION, a)
-#define XBT_IN2(fmt,a,b)     LOG3(xbt_log_priority_trace, ">> begin of %s" fmt, _XBT_GNUC_FUNCTION, a,b)
-#define XBT_IN3(fmt,a,b,c)   LOG4(xbt_log_priority_trace, ">> begin of %s" fmt, _XBT_GNUC_FUNCTION, a,b,c)
-#define XBT_IN4(fmt,a,b,c,d) LOG5(xbt_log_priority_trace, ">> begin of %s" fmt, _XBT_GNUC_FUNCTION, a,b,c,d)
-#define XBT_OUT              LOG1(xbt_log_priority_trace, "<< end of %s",       _XBT_GNUC_FUNCTION)
-#define XBT_HERE             LOG0(xbt_log_priority_trace, "-- was here")
-
-#endif /* ! _XBT_LOG_H_ */
+ * \param ...
+ *  @brief Log an event at the DEBUG priority on the default category with these args.
+ */
+#define XBT_DEBUG(...) XBT_LOG(xbt_log_priority_debug, __VA_ARGS__)
+
+/** @ingroup XBT_log
+ *  @hideinitializer
+ *  @brief Log an event at the VERB priority on the default category with these args.
+ */
+#define XBT_VERB(...) XBT_LOG(xbt_log_priority_verbose, __VA_ARGS__)
+
+/** @ingroup XBT_log
+ *  @hideinitializer
+ *  @brief Log an event at the INFO priority on the default category with these args.
+ */
+#define XBT_INFO(...) XBT_LOG(xbt_log_priority_info, __VA_ARGS__)
+
+/** @ingroup XBT_log
+ *  @hideinitializer
+ *  @brief Log an event at the WARN priority on the default category with these args.
+ */
+#define XBT_WARN(...) XBT_LOG(xbt_log_priority_warning, __VA_ARGS__)
+
+/** @ingroup XBT_log
+ *  @hideinitializer
+ *  @brief Log an event at the ERROR priority on the default category with these args.
+ */
+#define XBT_ERROR(...) XBT_LOG(xbt_log_priority_error, __VA_ARGS__)
+
+/** @ingroup XBT_log
+ *  @hideinitializer
+ *  @brief Log an event at the CRITICAL priority on the default category with these args.
+ */
+#define XBT_CRITICAL(...) XBT_LOG(xbt_log_priority_critical, __VA_ARGS__)
+
+/** @ingroup XBT_log
+ *  @hideinitializer
+ *  @brief Log at TRACE priority that we entered in current function.
+ */
+#define XBT_IN       XBT_IN_F("")
+
+/** @ingroup XBT_log
+ *  @hideinitializer
+ *  @brief Log at TRACE priority that we entered in current function, appending a user specified format.
+ */
+#define XBT_IN_F(...) XBT_IN_F_(__VA_ARGS__, "")
+#define XBT_IN_F_(fmt, ...) \
+  XBT_LOG(xbt_log_priority_trace, ">> begin of %s" fmt "%s", \
+          _XBT_FUNCTION, __VA_ARGS__)
+
+/** @ingroup XBT_log
+ *  @hideinitializer
+ *  @brief Log at TRACE priority that we exited the current function.
+ */
+#define XBT_OUT              XBT_LOG(xbt_log_priority_trace, "<< end of %s",       _XBT_FUNCTION)
+
+/** @ingroup XBT_log
+ *  @hideinitializer
+ *  @brief Log at TRACE priority a message indicating that we reached that point.
+ */
+#define XBT_HERE             XBT_LOG(xbt_log_priority_trace, "-- was here")
+
+SG_END_DECL()
+#endif                          /* ! _XBT_LOG_H_ */