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/*
** Zabbix
** Copyright (C) 2001-2022 Zabbix SIA
**
** This program 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 2 of the License, or
** (at your option) any later version.
**
** This program 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 this program; if not, write to the Free Software
** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
**/
#include "zbxsysinfo.h"
#include "log.h"
#include "stats.h"
static int get_cpu_num(int online)
{
int mib[2], cpu_num;
size_t len = sizeof(cpu_num);
mib[0] = CTL_HW;
mib[1] = (1 == online ? HW_AVAILCPU : HW_NCPU);
if (0 != sysctl(mib, 2, &cpu_num, &len, NULL, 0))
return -1;
return cpu_num;
}
int SYSTEM_CPU_NUM(AGENT_REQUEST *request, AGENT_RESULT *result)
{
char *tmp;
int cpu_num, online = 0;
if (1 < request->nparam)
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Too many parameters."));
return SYSINFO_RET_FAIL;
}
tmp = get_rparam(request, 0);
if (NULL == tmp || '\0' == *tmp || 0 == strcmp(tmp, "online"))
online = 1;
else if (0 != strcmp(tmp, "max"))
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Invalid first parameter."));
return SYSINFO_RET_FAIL;
}
if (-1 == (cpu_num = get_cpu_num(online)))
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Cannot obtain number of CPUs."));
return SYSINFO_RET_FAIL;
}
SET_UI64_RESULT(result, cpu_num);
return SYSINFO_RET_OK;
}
int SYSTEM_CPU_LOAD(AGENT_REQUEST *request, AGENT_RESULT *result)
{
char *tmp;
int mode, per_cpu = 1, cpu_num;
double load[ZBX_AVG_COUNT], value;
if (2 < request->nparam)
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Too many parameters."));
return SYSINFO_RET_FAIL;
}
tmp = get_rparam(request, 0);
if (NULL == tmp || '\0' == *tmp || 0 == strcmp(tmp, "all"))
per_cpu = 0;
else if (0 != strcmp(tmp, "percpu"))
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Invalid first parameter."));
return SYSINFO_RET_FAIL;
}
tmp = get_rparam(request, 1);
if (NULL == tmp || '\0' == *tmp || 0 == strcmp(tmp, "avg1"))
mode = ZBX_AVG1;
else if (0 == strcmp(tmp, "avg5"))
mode = ZBX_AVG5;
else if (0 == strcmp(tmp, "avg15"))
mode = ZBX_AVG15;
else
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Invalid second parameter."));
return SYSINFO_RET_FAIL;
}
if (mode >= getloadavg(load, 3))
{
SET_MSG_RESULT(result, zbx_dsprintf(NULL, "Cannot obtain load average: %s", zbx_strerror(errno)));
return SYSINFO_RET_FAIL;
}
value = load[mode];
if (1 == per_cpu)
{
if (0 >= (cpu_num = get_cpu_num(1)))
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Cannot obtain number of CPUs."));
return SYSINFO_RET_FAIL;
}
value /= cpu_num;
}
SET_DBL_RESULT(result, value);
return SYSINFO_RET_OK;
}
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