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/*
** ZABBIX
** Copyright (C) 2000-2005 SIA Zabbix
**
** 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., 675 Mass Ave, Cambridge, MA 02139, USA.
**/
#include "common.h"
#include "sysinfo.h"
static int get_vmmemory_stat(zbx_uint64_t *total, zbx_uint64_t *free, zbx_uint64_t *used, zbx_uint64_t *shared, double *pfree, double *pused)
{
#if defined(HAVE_SYS_VMMETER_VMTOTAL)
int mib[] = {CTL_VM, VM_METER};
struct vmtotal v;
size_t len;
len = sizeof(v);
if (0 != sysctl(mib, 2, &v, &len, NULL, 0))
return SYSINFO_RET_FAIL;
if (total)
*total = (zbx_uint64_t)(v.t_rm + v.t_free) * sysconf(_SC_PAGESIZE);
if (free)
*free = (zbx_uint64_t)v.t_free * sysconf(_SC_PAGESIZE);
if (used)
*used = (zbx_uint64_t)v.t_rm * sysconf(_SC_PAGESIZE);
if (shared)
*shared = (zbx_uint64_t)(v.t_vmshr + v.t_rmshr) * sysconf(_SC_PAGESIZE);
if (pfree)
*pfree = (double)(100.0 * v.t_free) / (v.t_rm + v.t_free);
if (pused)
*pused = (double)(100.0 * v.t_rm) / (v.t_rm + v.t_free);
return SYSINFO_RET_OK;
#else
return SYSINFO_RET_FAIL;
#endif /* HAVE_SYS_VMMETER_VMTOTAL */
}
static int VM_MEMORY_TOTAL(AGENT_RESULT *result)
{
zbx_uint64_t value;
if (SYSINFO_RET_OK != get_vmmemory_stat(&value, NULL, NULL, NULL, NULL, NULL))
return SYSINFO_RET_FAIL;
SET_UI64_RESULT(result, value);
return SYSINFO_RET_OK;
}
static int VM_MEMORY_FREE(AGENT_RESULT *result)
{
zbx_uint64_t value;
if (SYSINFO_RET_OK != get_vmmemory_stat(NULL, &value, NULL, NULL, NULL, NULL))
return SYSINFO_RET_FAIL;
SET_UI64_RESULT(result, value);
return SYSINFO_RET_OK;
}
static int VM_MEMORY_USED(AGENT_RESULT *result)
{
zbx_uint64_t value;
if (SYSINFO_RET_OK != get_vmmemory_stat(NULL, NULL, &value, NULL, NULL, NULL))
return SYSINFO_RET_FAIL;
SET_UI64_RESULT(result, value);
return SYSINFO_RET_OK;
}
static int VM_MEMORY_SHARED(AGENT_RESULT *result)
{
zbx_uint64_t value;
if (SYSINFO_RET_OK != get_vmmemory_stat(NULL, NULL, NULL, &value, NULL, NULL))
return SYSINFO_RET_FAIL;
SET_UI64_RESULT(result, value);
return SYSINFO_RET_OK;
}
static int VM_MEMORY_PFREE(AGENT_RESULT *result)
{
double value;
if (SYSINFO_RET_OK != get_vmmemory_stat(NULL, NULL, NULL, NULL, &value, NULL))
return SYSINFO_RET_FAIL;
SET_DBL_RESULT(result, value);
return SYSINFO_RET_OK;
}
static int VM_MEMORY_PUSED(AGENT_RESULT *result)
{
double value;
if (SYSINFO_RET_OK != get_vmmemory_stat(NULL, NULL, NULL, NULL, NULL, &value))
return SYSINFO_RET_FAIL;
SET_DBL_RESULT(result, value);
return SYSINFO_RET_OK;
}
static int VM_MEMORY_BUFFERS(AGENT_RESULT *result)
{
int mib[] = {CTL_VM, VM_NKMEMPAGES}, pages;
size_t len;
zbx_uint64_t value;
len = sizeof(pages);
if (0 != sysctl(mib, 2, &pages, &len, NULL, 0))
return SYSINFO_RET_FAIL;
value = (zbx_uint64_t)pages * sysconf(_SC_PAGESIZE);
SET_UI64_RESULT(result, value);
return SYSINFO_RET_OK;
}
static int VM_MEMORY_CACHED(AGENT_RESULT *result)
{
int mib[] = {CTL_VM, VM_UVMEXP};
struct uvmexp v;
size_t len;
zbx_uint64_t value;
len = sizeof(v);
if (0 != sysctl(mib, 2, &v, &len, NULL, 0))
return SYSINFO_RET_FAIL;
value = (zbx_uint64_t)(v.vnodepages + v.vtextpages) * v.pagesize;
SET_UI64_RESULT(result, value);
return SYSINFO_RET_OK;
}
int VM_MEMORY_SIZE(const char *cmd, const char *param, unsigned flags, AGENT_RESULT *result)
{
#define MEM_FNCLIST struct mem_fnclist_s
MEM_FNCLIST
{
char *mode;
int (*function)();
};
MEM_FNCLIST fl[] =
{
{"total", VM_MEMORY_TOTAL},
{"free", VM_MEMORY_FREE},
{"used", VM_MEMORY_USED},
{"shared", VM_MEMORY_SHARED},
{"pfree", VM_MEMORY_PFREE},
{"pused", VM_MEMORY_PUSED},
{"buffers", VM_MEMORY_BUFFERS},
{"cached", VM_MEMORY_CACHED},
{0, 0}
};
char mode[MAX_STRING_LEN];
int i;
assert(result);
init_result(result);
if(num_param(param) > 1)
return SYSINFO_RET_FAIL;
if (0 != get_param(param, 1, mode, sizeof(mode)))
*mode = '\0';
/* default parameter */
if (*mode == '\0')
zbx_snprintf(mode, sizeof(mode), "total");
for (i = 0; fl[i].mode != 0; i++)
if (0 == strncmp(mode, fl[i].mode, MAX_STRING_LEN))
return (fl[i].function)(result);
return SYSINFO_RET_FAIL;
}
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