#include "xbt/error.h"
#include "xbt/dynar.h"
-
-/** \defgroup XBT_log Logging support.
- * \brief A generic logging facility in the spirit of log4j
+/** \addtogroup XBT_log
*
* This section describes the API to the log functions used
* everywhere in this project.
-<h3>Overview</h3>
+\section log_overview Overview
This is an adaptation of the log4c project, which is dead upstream, and
which I was given the permission to fork under the LGPL licence by the
message type and priority, and to control at runtime how these messages are
formatted and where they are reported.
-<h3>Category hierarchy</h3>
+\section log_cat Category hierarchy
The first and foremost advantage of any logging API over plain printf()
resides in its ability to disable certain log statements while allowing
Typically, there will be a Category for each module and sub-module, so you
can independently control logging for each module.
-<h3>Priority</h3>
+For a list of all existing categories, please refer to the \ref XBT_log_cats section.
+
+\section log_pri Priority
A category may be assigned a threshold priorty. The set of priorites are
defined by the \ref e_xbt_log_priority_t enum. All logging request under
<code>CWARN4(MyCat, "Values are: %d and '%s'", 5, "oops");</code>
-<h3>Default category</h3>
+\subsection log_subcat Using a default category
If \ref XBT_LOG_NEW_DEFAULT_SUBCATEGORY(MyCat, Parent) or
\ref XBT_LOG_NEW_DEFAULT_CATEGORY(MyCat) is used to create the
Only one default category can be created per file, though multiple
non-defaults can be created and used.
-<h3>Example</h3>
+\section log_example Example
Here is a more complete example:
}
\endverbatim
-<h3>Configuration</h3>
+\section log_conf Configuration
Configuration is typically done during program initialization by invoking
the xbt_log_control_set() method. The control string passed to it typically
comes from the command line. Look at the documentation for that function for
--surf-log are synonyms). You can provide several of those arguments to
change the setting of several categories.
-<h3>Performance</h3>
+\section log_perf Performance
Clever design insures efficiency. Except for the first invocation, a
disabled logging request requires an a single comparison of a static
requests are statically disabled and cost nothing. Released executables
might be compiled with
\verbatim-DXBT_LOG_STATIC_THRESHOLD=gras_log_priority_infinite\endverbatim
-
-<h3>Appenders</h3>
+
+Compiling with the \verbatim-DNLOG\endverbatim option disables all logging
+requests at compilation time while the \verbatim-DNDEBUG\endverbatim disables
+the requests of priority below INFO.
+
+\section log_app Appenders
Each category has an optional appender. An appender is a pointer to a
structure which starts with a pointer to a doAppend() function. DoAppend()
This is on our TODO list for quite a while now, but your help would be
welcome here.
-<h3>Misc and Caveats</h3>
-
-Do not use any of the macros that start with '_'.
-
-Log4J has a 'rolling file appender' which you can select with a run-time
-option and specify the max file size. This would be a nice default for
-non-kernel applications.
+\section log_misc Misc and Caveats
-Careful, category names are global variables.
+ - Do not use any of the macros that start with '_'.
+ - Log4J has a 'rolling file appender' which you can select with a run-time
+ option and specify the max file size. This would be a nice default for
+ non-kernel applications.
+ - Careful, category names are global variables.
*/
static void _free_setting(void *s) {
xbt_log_setting_t set=(xbt_log_setting_t)s;
if (set) {
- xbt_free(set->catname);
-/* xbt_free(set); FIXME: uncommenting this leads to segfault when more than one chunk is passed as gras-log */
+ free(set->catname);
+/* free(set); FIXME: uncommenting this leads to segfault when more than one chunk is passed as gras-log */
}
}
NULL, 0
};
-XBT_LOG_NEW_SUBCATEGORY(xbt,XBT_LOG_ROOT_CAT,"All XBT categories (simgrid toolbox)");
-XBT_LOG_NEW_SUBCATEGORY(surf,XBT_LOG_ROOT_CAT,"All SURF categories");
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(log,xbt,"Loggings from the logging mecanism itself");
+XBT_LOG_NEW_CATEGORY(xbt,"All XBT categories (simgrid toolbox)");
+XBT_LOG_NEW_CATEGORY(surf,"All SURF categories");
+XBT_LOG_NEW_CATEGORY(msg,"All MSG categories");
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(log,xbt,"Loggings from the logging mechanism itself");
void xbt_log_init(int *argc,char **argv, const char *defaultlog) {
int i,j;
char *opt;
int found=0;
- /** Set logs and init log submodule */
+ /* Set logs and init log submodule */
for (i=1; i<*argc; i++) {
if (!strncmp(argv[i],"--gras-log=",strlen("--gras-log=")) ||
!strncmp(argv[i],"--surf-log=",strlen("--surf-log=")) ||
} else {
xbt_assert1(FALSE,"Unknown priority name: %s",eq+1);
}
- xbt_free(neweq);
+ free(neweq);
} else {
char buff[512];
snprintf(buff,min(512,eq - dot - 1),"%s",dot+1);
set = xbt_new(s_xbt_log_setting_t,1);
} else {
DEBUG0("Apply directly");
- xbt_free(set->catname);
+ free(set->catname);
xbt_log_threshold_set(cat,set->thresh);
}
}
- xbt_free(set);
- xbt_free(cs);
+ free(set);
+ free(cs);
}
void xbt_log_appender_set(xbt_log_category_t cat, xbt_log_appender_t app) {
