NAME¶

tep_set_loglevel - Set log level of the library

SYNOPSIS¶

#include <event-parse.h>
enum tep_loglevel {


        TEP_LOG_NONE = 0,


        TEP_LOG_CRITICAL,


        TEP_LOG_ERROR,


        TEP_LOG_WARNING,


        TEP_LOG_INFO,


        TEP_LOG_DEBUG,


        TEP_LOG_ALL
};
int tep_set_loglevel(enum tep_loglevel level);

DESCRIPTION¶

The tep_set_loglevel() function sets the level of the library logs that will be printed on the console. Library log levels are:

        TEP_LOG_NONE - Do not print any logs.


        TEP_LOG_CRITICAL - Print critical logs, problem that may cause a crash.


        TEP_LOG_ERROR - Print error logs, problem that could break the main logic of an API.


        TEP_LOG_WARNING - Print warnings, problem that could limit the result of an API.


        TEP_LOG_INFO - Print information about normal execution of an API.


        TEP_LOG_DEBUG - Print debug information.


        TEP_LOG_ALL - Print logs from all levels.

Setting the log level to specific value means that logs from the previous levels will be printed too. For example TEP_LOG_WARNING will print any logs with severity TEP_LOG_WARNING, TEP_LOG_ERROR and TEP_LOG_CRITICAL. The default log level is TEP_LOG_CRITICAL.

EXAMPLE¶

#include <event-parse.h>
tep_set_loglevel(TEP_LOG_ALL);
...
/* call libtraceevent APIs and observe any logs they produce */
...
tep_set_loglevel(TEP_LOG_CRITICAL);

FILES¶

event-parse.h


        Header file to include in order to have access to the library APIs.
-ltraceevent


        Linker switch to add when building a program that uses the library.

SEE ALSO¶

libtraceevent(3), trace-cmd(1)

AUTHOR¶

Steven Rostedt <rostedt@goodmis.org[1]>, author of libtraceevent.
Tzvetomir Stoyanov <tz.stoyanov@gmail.com[2]>, author of this man page.

REPORTING BUGS¶

Report bugs to <linux-trace-devel@vger.kernel.org[3]>

LICENSE¶

libtraceevent is Free Software licensed under the GNU LGPL 2.1

RESOURCES¶

https://git.kernel.org/pub/scm/libs/libtrace/libtraceevent.git/

NOTES¶

1.

rostedt@goodmis.org

2.

tz.stoyanov@gmail.com

3.

linux-trace-devel@vger.kernel.org