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/*
** Zabbix
** Copyright (C) 2001-2014 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 "common.h"
#include "sysinfo.h"
#include "log.h"
struct pst_static pst;
struct pst_dynamic pdy;
#define ZBX_PSTAT_GETSTATIC() \
\
if (-1 == pstat_getstatic(&pst, sizeof(pst), 1, 0)) \
{ \
SET_MSG_RESULT(result, zbx_dsprintf(NULL, "Cannot obtain static system information: %s", \
zbx_strerror(errno))); \
return SYSINFO_RET_FAIL; \
}
#define ZBX_PSTAT_GETDYNAMIC() \
\
if (-1 == pstat_getdynamic(&pdy, sizeof(pdy), 1, 0)) \
{ \
SET_MSG_RESULT(result, zbx_dsprintf(NULL, "Cannot obtain dynamic system information: %s", \
zbx_strerror(errno))); \
return SYSINFO_RET_FAIL; \
}
static int VM_MEMORY_TOTAL(AGENT_RESULT *result)
{
ZBX_PSTAT_GETSTATIC();
SET_UI64_RESULT(result, (zbx_uint64_t)pst.physical_memory * pst.page_size);
return SYSINFO_RET_OK;
}
static int VM_MEMORY_FREE(AGENT_RESULT *result)
{
ZBX_PSTAT_GETSTATIC();
ZBX_PSTAT_GETDYNAMIC();
SET_UI64_RESULT(result, (zbx_uint64_t)pdy.psd_free * pst.page_size);
return SYSINFO_RET_OK;
}
static int VM_MEMORY_ACTIVE(AGENT_RESULT *result)
{
ZBX_PSTAT_GETSTATIC();
ZBX_PSTAT_GETDYNAMIC();
SET_UI64_RESULT(result, (zbx_uint64_t)pdy.psd_arm * pst.page_size);
return SYSINFO_RET_OK;
}
static int VM_MEMORY_USED(AGENT_RESULT *result)
{
ZBX_PSTAT_GETSTATIC();
ZBX_PSTAT_GETDYNAMIC();
SET_UI64_RESULT(result, (zbx_uint64_t)(pst.physical_memory - pdy.psd_free) * pst.page_size);
return SYSINFO_RET_OK;
}
static int VM_MEMORY_PUSED(AGENT_RESULT *result)
{
ZBX_PSTAT_GETSTATIC();
ZBX_PSTAT_GETDYNAMIC();
if (0 == pst.physical_memory)
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Cannot calculate percentage because total is zero."));
return SYSINFO_RET_FAIL;
}
SET_DBL_RESULT(result, (pst.physical_memory - pdy.psd_free) / (double)pst.physical_memory * 100);
return SYSINFO_RET_OK;
}
static int VM_MEMORY_AVAILABLE(AGENT_RESULT *result)
{
ZBX_PSTAT_GETSTATIC();
ZBX_PSTAT_GETDYNAMIC();
SET_UI64_RESULT(result, (zbx_uint64_t)pdy.psd_free * pst.page_size);
return SYSINFO_RET_OK;
}
static int VM_MEMORY_PAVAILABLE(AGENT_RESULT *result)
{
ZBX_PSTAT_GETSTATIC();
ZBX_PSTAT_GETDYNAMIC();
if (0 == pst.physical_memory)
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Cannot calculate percentage because total is zero."));
return SYSINFO_RET_FAIL;
}
SET_DBL_RESULT(result, pdy.psd_free / (double)pst.physical_memory * 100);
return SYSINFO_RET_OK;
}
int VM_MEMORY_SIZE(AGENT_REQUEST *request, AGENT_RESULT *result)
{
int ret = SYSINFO_RET_FAIL;
char *mode;
if (1 < request->nparam)
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Too many parameters."));
return SYSINFO_RET_FAIL;
}
mode = get_rparam(request, 0);
if (NULL == mode || '\0' == *mode || 0 == strcmp(mode, "total"))
ret = VM_MEMORY_TOTAL(result);
else if (0 == strcmp(mode, "free"))
ret = VM_MEMORY_FREE(result);
else if (0 == strcmp(mode, "active"))
ret = VM_MEMORY_ACTIVE(result);
else if (0 == strcmp(mode, "used"))
ret = VM_MEMORY_USED(result);
else if (0 == strcmp(mode, "pused"))
ret = VM_MEMORY_PUSED(result);
else if (0 == strcmp(mode, "available"))
ret = VM_MEMORY_AVAILABLE(result);
else if (0 == strcmp(mode, "pavailable"))
ret = VM_MEMORY_PAVAILABLE(result);
else
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Invalid first parameter."));
ret = SYSINFO_RET_FAIL;
}
return ret;
}
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