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/* This file is part of vmod-tbf
Copyright (C) 2013-2014 Sergey Poznyakoff
Vmod-tbf is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
Vmod-tbf 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with vmod-tbf. If not, see <http://www.gnu.org/licenses/>.
*/
#define _BSD_SOURCE
#include "tbf.h"
#if defined(HAVE_SYSINFO) && defined(HAVE_SYS_SYSINFO_H)
# include <sys/sysinfo.h>
#endif
static double
sys_getla(int what)
{
#if defined(HAVE_GETLOADAVG)
double loadavg[3];
if (getloadavg(loadavg, 3) != 3) {
syslog(LOG_DAEMON|LOG_CRIT, "tbf.getla cannot get values");
return 0.0;
}
return loadavg[what];
#elif defined(HAVE_SYSINFO) && defined(HAVE_SYS_SYSINFO_H)
struct sysinfo info;
if (sysinfo(&info)) {
syslog(LOG_DAEMON|LOG_CRIT, "tbf.getla cannot get values");
return 0.0;
}
return info.loads[what] / 65536.0;
#else
syslog(LOG_DAEMON|LOG_CRIT, "tbf.getla is not implemented");
return 0.0;
#endif
}
VCL_REAL
vmod_getla(MOD_CTX ctx, VCL_INT what)
{
switch (what) {
case 1:
what = 0;
break;
case 5:
what = 1;
break;
case 15:
what = 2;
break;
default:
what = 0;
}
return sys_getla(what);
}
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