e6209940de
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. No functional change intended.
75 lines
2.0 KiB
C
75 lines
2.0 KiB
C
/*-
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* gloadavg.c - get load average for Linux
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* Copyright (C) 1993 Thomas Koenig
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. The name of the author(s) may not be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef lint
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static const char rcsid[] =
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"$FreeBSD$";
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#endif /* not lint */
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#ifndef __FreeBSD__
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#define _POSIX_SOURCE 1
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/* System Headers */
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#include <stdio.h>
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#else
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#include <stdlib.h>
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#endif
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/* Local headers */
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#include "gloadavg.h"
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/* Global functions */
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void perr(const char *fmt, ...);
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double
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gloadavg(void)
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/* return the current load average as a floating point number, or <0 for
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* error
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*/
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{
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double result;
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#ifndef __FreeBSD__
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FILE *fp;
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if((fp=fopen(PROC_DIR "loadavg","r")) == NULL)
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result = -1.0;
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else
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{
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if(fscanf(fp,"%lf",&result) != 1)
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result = -1.0;
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fclose(fp);
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}
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#else
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if (getloadavg(&result, 1) != 1)
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perr("error in getloadavg");
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#endif
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return result;
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}
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