tep_set_loglevel - Man Page

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
    mailto:rostedt@goodmis.org
  2. tz.stoyanov@gmail.com
    mailto:tz.stoyanov@gmail.com
  3. linux-trace-devel@vger.kernel.org
    mailto:linux-trace-devel@vger.kernel.org

Info

07/21/2022 libtraceevent 1.5.3 libtraceevent Manual