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.\" (C) Copyright 2016 Craig Small <csmall@enc.com.au>
.\"
.\" %%%LICENSE_START(LGPL_2.1+)
.\" This manual is free software; you can redistribute it and/or
.\" modify it under the terms of the GNU Lesser General Public
.\" License as published by the Free Software Foundation; either
.\" version 2.1 of the License, or (at your option) any later version.
.\"
.\" This manual is distributed in the hope that it will be useful,
.\" but WITHOUT ANY WARRANTY; without even the implied warranty of
.\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
.\" Lesser General Public License for more details.
.\"
.\" You should have received a copy of the GNU Lesser General Public
.\" License along with this library; if not, write to the Free Software
.\" Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
.\" %%%LICENSE_END
.\"
.TH PROCPS_UPTIME 3 2016-05-01 "libproc-2"
.\" Please adjust this date whenever revising the manpage.
.\"
.SH NAME
procps_uptime \-
provide the uptime and idle time in seconds
.SH SYNOPSIS
.B #include <proc/procps.h>
.sp
.BI "int procps_uptime(double * " uptime_secs ", double * " idle_secs ");"
.sp
Link with \fI\-lprocps\fP.
.SH DESCRIPTION
The function
.BR procps_uptime ()
fills the location of the two double points with the current sytem uptime
and idle time.
.SH RETURN VALUE
.BR procps_uptime ()
returns 0 on success. On failure, it
returns a negative integer to one of the values defined below.
.TP
.B -ERANGE
Unable to parse the uptime file.
.PP
.BR procps_uptime ()
may also return any (negated) value that \fBfopen\fR() may set errno to.
.SH FILES
.TP
.I /proc/uptime
The raw values for uptime and idle time.
.SH VERSIONS
.B procps_uptime()
first appeared in libproc-2 version 0.0.
.SH SEE ALSO
.BR fopen (3),
.BR proc (5).
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