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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 "../sysinfo.h"
#include "log.h"
#include "zbxnum.h"
#include "stats.h"
static int get_cpu_num()
{
#ifdef HAVE_FUNCTION_SYSCTL_HW_NCPU /* OpenBSD 4.2,4.3 i386 */
size_t len;
int mib[] = {CTL_HW, HW_NCPU}, ncpu;
len = sizeof(ncpu);
if (-1 == sysctl(mib, 2, &ncpu, &len, NULL, 0))
return -1;
return ncpu;
#else
return -1;
#endif
}
int system_cpu_num(AGENT_REQUEST *request, AGENT_RESULT *result)
{
char *tmp;
int cpu_num;
if (1 < request->nparam)
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Too many parameters."));
return SYSINFO_RET_FAIL;
}
tmp = get_rparam(request, 0);
/* only "online" (default) for parameter "type" is supported */
if (NULL != tmp && '\0' != *tmp && 0 != strcmp(tmp, "online"))
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Invalid first parameter."));
return SYSINFO_RET_FAIL;
}
if (-1 == (cpu_num = get_cpu_num()))
{
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_util(AGENT_REQUEST *request, AGENT_RESULT *result)
{
char *tmp;
int cpu_num, state, mode;
if (3 < 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"))
cpu_num = ZBX_CPUNUM_ALL;
else if (SUCCEED != zbx_is_uint31_1(tmp, &cpu_num))
{
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, "user"))
state = ZBX_CPU_STATE_USER;
else if (0 == strcmp(tmp, "nice"))
state = ZBX_CPU_STATE_NICE;
else if (0 == strcmp(tmp, "system"))
state = ZBX_CPU_STATE_SYSTEM;
else if (0 == strcmp(tmp, "idle"))
state = ZBX_CPU_STATE_IDLE;
else if (0 == strcmp(tmp, "interrupt"))
state = ZBX_CPU_STATE_INTERRUPT;
else
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Invalid second parameter."));
return SYSINFO_RET_FAIL;
}
tmp = get_rparam(request, 2);
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 third parameter."));
return SYSINFO_RET_FAIL;
}
return get_cpustat(result, cpu_num, state, mode);
}
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()))
{
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;
}
int system_cpu_switches(AGENT_REQUEST *request, AGENT_RESULT *result)
{
int mib[] = {CTL_VM, VM_UVMEXP};
size_t len;
struct uvmexp v;
len = sizeof(struct uvmexp);
if (0 != sysctl(mib, 2, &v, &len, NULL, 0))
{
SET_MSG_RESULT(result, zbx_dsprintf(NULL, "Cannot obtain system information: %s", zbx_strerror(errno)));
return SYSINFO_RET_FAIL;
}
SET_UI64_RESULT(result, v.swtch);
return SYSINFO_RET_OK;
}
int system_cpu_intr(AGENT_REQUEST *request, AGENT_RESULT *result)
{
int mib[] = {CTL_VM, VM_UVMEXP};
size_t len;
struct uvmexp v;
len = sizeof(struct uvmexp);
if (0 != sysctl(mib, 2, &v, &len, NULL, 0))
{
SET_MSG_RESULT(result, zbx_dsprintf(NULL, "Cannot obtain system information: %s", zbx_strerror(errno)));
return SYSINFO_RET_FAIL;
}
SET_UI64_RESULT(result, v.intrs);
return SYSINFO_RET_OK;
}
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