---
name: "tep_set_loglevel"
section: "3"
platform: "linux"
package: "libtraceevent"
version: "1:1.9.1-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/tep_set_loglevel"
---

# tep\_set\_loglevel(3)

Set log level of the library

## 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)](/libtraceevent/3.md), [**trace-cmd**(1)](/trace-cmd/1.md)

## 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