'\" t
.\"     Title: libtracecmd
.\"    Author: [see the "AUTHOR" section]
.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
.\"      Date: 02/10/2024
.\"    Manual: libtracefs Manual
.\"    Source: libtracefs
.\"  Language: English
.\"
.TH "LIBTRACECMD" "3" "02/10/2024" "libtracefs" "libtracefs Manual"
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.SH "NAME"
tracecmd_set_loglevel \- Set log level of the library
.SH "SYNOPSIS"
.sp
.nf
\fB#include <trace\-cmd\&.h>\fR

int \fBtracecmd_set_loglevel\fR(enum tep_loglevel \fIlevel\fR);
.fi
.SH "DESCRIPTION"
.sp
The \fBtracecmd_set_loglevel()\fR function sets the level of the library logs that will be printed on the console\&. See \fBlibtraceevent(3)\fR for detailed desciription of the log levels\&. Setting the log level to specific value means that logs from the previous levels will be printed too\&. For example \fITEP_LOG_WARNING\fR will print any logs with severity \fITEP_LOG_WARNING\fR, \fITEP_LOG_ERROR\fR and \fITEP_LOG_CRITICAL\fR\&. The default log level is \fITEP_LOG_CRITICAL\fR\&. When a new level is set, it is also propagated to the libtracefs and libtraceevent\&.
.SH "EXAMPLE"
.sp
.if n \{\
.RS 4
.\}
.nf
#include <trace\-cmd\&.h>
\&.\&.\&.
tracecmd_set_loglevel(TEP_LOG_ALL);
\&.\&.\&.
/* call libtracecmd, libtracefs or libtraceevent APIs and observe any logs they produce */
\&.\&.\&.
tracecmd_set_loglevel(TEP_LOG_CRITICAL);
.fi
.if n \{\
.RE
.\}
.SH "FILES"
.sp
.if n \{\
.RS 4
.\}
.nf
\fBtrace\-cmd\&.h\fR
        Header file to include in order to have access to the library APIs\&.
\fB\-ltracecmd\fR
        Linker switch to add when building a program that uses the library\&.
.fi
.if n \{\
.RE
.\}
.SH "SEE ALSO"
.sp
\fBlibtracefs(3)\fR, \fBlibtraceevent(3)\fR, \fBtrace\-cmd(1)\fR \fBtrace\-cmd\&.dat(5)\fR
.SH "AUTHOR"
.sp
.if n \{\
.RS 4
.\}
.nf
\fBSteven Rostedt\fR <\m[blue]\fBrostedt@goodmis\&.org\fR\m[]\&\s-2\u[1]\d\s+2>
\fBTzvetomir Stoyanov\fR <\m[blue]\fBtz\&.stoyanov@gmail\&.com\fR\m[]\&\s-2\u[2]\d\s+2>
.fi
.if n \{\
.RE
.\}
.SH "REPORTING BUGS"
.sp
Report bugs to <\m[blue]\fBlinux\-trace\-devel@vger\&.kernel\&.org\fR\m[]\&\s-2\u[3]\d\s+2>
.SH "LICENSE"
.sp
libtracecmd is Free Software licensed under the GNU LGPL 2\&.1
.SH "RESOURCES"
.sp
\m[blue]\fBhttps://git\&.kernel\&.org/pub/scm/utils/trace\-cmd/trace\-cmd\&.git/\fR\m[]
.SH "COPYING"
.sp
Copyright (C) 2021 VMware, Inc\&. Free use of this software is granted under the terms of the GNU Public License (GPL)\&.
.SH "NOTES"
.IP " 1." 4
rostedt@goodmis.org
.RS 4
\%mailto:rostedt@goodmis.org
.RE
.IP " 2." 4
tz.stoyanov@gmail.com
.RS 4
\%mailto:tz.stoyanov@gmail.com
.RE
.IP " 3." 4
linux-trace-devel@vger.kernel.org
.RS 4
\%mailto:linux-trace-devel@vger.kernel.org
.RE