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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"
static vm_size_t pagesize = 0;
static struct vm_statistics vm;
static mach_msg_type_number_t count;
#define ZBX_HOST_STATISTICS(value) \
\
count = HOST_VM_INFO_COUNT; \
if (KERN_SUCCESS != host_statistics(mach_host_self(), HOST_VM_INFO, (host_info_t)&value, &count)) \
{ \
SET_MSG_RESULT(result, zbx_strdup(NULL, "Cannot obtain host statistics.")); \
return SYSINFO_RET_FAIL; \
}
static int mib[] = {CTL_HW, HW_MEMSIZE};
static size_t len;
static zbx_uint64_t memsize;
#define ZBX_SYSCTL(value) \
\
len = sizeof(value); \
if (0 != sysctl(mib, 2, &value, &len, NULL, 0)) \
{ \
SET_MSG_RESULT(result, zbx_dsprintf(NULL, "Cannot obtain system information: %s", \
zbx_strerror(errno))); \
return SYSINFO_RET_FAIL; \
}
static int VM_MEMORY_TOTAL(AGENT_RESULT *result)
{
ZBX_SYSCTL(memsize);
SET_UI64_RESULT(result, memsize);
return SYSINFO_RET_OK;
}
static int VM_MEMORY_ACTIVE(AGENT_RESULT *result)
{
ZBX_HOST_STATISTICS(vm);
SET_UI64_RESULT(result, (zbx_uint64_t)vm.active_count * pagesize);
return SYSINFO_RET_OK;
}
static int VM_MEMORY_INACTIVE(AGENT_RESULT *result)
{
ZBX_HOST_STATISTICS(vm);
SET_UI64_RESULT(result, (zbx_uint64_t)vm.inactive_count * pagesize);
return SYSINFO_RET_OK;
}
static int VM_MEMORY_WIRED(AGENT_RESULT *result)
{
ZBX_HOST_STATISTICS(vm);
SET_UI64_RESULT(result, (zbx_uint64_t)vm.wire_count * pagesize);
return SYSINFO_RET_OK;
}
static int VM_MEMORY_FREE(AGENT_RESULT *result)
{
ZBX_HOST_STATISTICS(vm);
SET_UI64_RESULT(result, (zbx_uint64_t)vm.free_count * pagesize);
return SYSINFO_RET_OK;
}
static int VM_MEMORY_USED(AGENT_RESULT *result)
{
ZBX_HOST_STATISTICS(vm);
SET_UI64_RESULT(result, (zbx_uint64_t)(vm.active_count + vm.wire_count) * pagesize);
return SYSINFO_RET_OK;
}
static int VM_MEMORY_PUSED(AGENT_RESULT *result)
{
zbx_uint64_t used;
ZBX_SYSCTL(memsize);
if (0 == memsize)
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Cannot calculate percentage because total is zero."));
return SYSINFO_RET_FAIL;
}
ZBX_HOST_STATISTICS(vm);
used = (zbx_uint64_t)(vm.active_count + vm.wire_count) * pagesize;
SET_DBL_RESULT(result, used / (double)memsize * 100);
return SYSINFO_RET_OK;
}
static int VM_MEMORY_AVAILABLE(AGENT_RESULT *result)
{
ZBX_HOST_STATISTICS(vm);
SET_UI64_RESULT(result, (zbx_uint64_t)(vm.inactive_count + vm.free_count) * pagesize);
return SYSINFO_RET_OK;
}
static int VM_MEMORY_PAVAILABLE(AGENT_RESULT *result)
{
zbx_uint64_t available;
ZBX_SYSCTL(memsize);
if (0 == memsize)
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Cannot calculate percentage because total is zero."));
return SYSINFO_RET_FAIL;
}
ZBX_HOST_STATISTICS(vm);
available = (zbx_uint64_t)(vm.inactive_count + vm.free_count) * pagesize;
SET_DBL_RESULT(result, available / (double)memsize * 100);
return SYSINFO_RET_OK;
}
int VM_MEMORY_SIZE(AGENT_REQUEST *request, AGENT_RESULT *result)
{
char *mode;
int ret = SYSINFO_RET_FAIL;
if (1 < request->nparam)
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Too many parameters."));
return SYSINFO_RET_FAIL;
}
if (0 == pagesize)
{
if (KERN_SUCCESS != host_page_size(mach_host_self(), &pagesize))
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Cannot obtain host page size."));
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, "active"))
ret = VM_MEMORY_ACTIVE(result);
else if (0 == strcmp(mode, "inactive"))
ret = VM_MEMORY_INACTIVE(result);
else if (0 == strcmp(mode, "wired"))
ret = VM_MEMORY_WIRED(result);
else if (0 == strcmp(mode, "free"))
ret = VM_MEMORY_FREE(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."));
return SYSINFO_RET_FAIL;
}
return ret;
}
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