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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"
int system_swap_size(AGENT_REQUEST *request, AGENT_RESULT *result)
{
#ifdef HAVE_LIBPERFSTAT
#define ZBX_PERFSTAT_PAGE_SHIFT 12 /* 4 KB */
perfstat_memory_total_t mem;
char *swapdev, *mode;
if (2 < request->nparam)
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Too many parameters."));
return SYSINFO_RET_FAIL;
}
swapdev = get_rparam(request, 0);
mode = get_rparam(request, 1);
if (NULL != swapdev && '\0' != *swapdev && 0 != strcmp(swapdev, "all"))
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Invalid first parameter."));
return SYSINFO_RET_FAIL;
}
if (1 != perfstat_memory_total(NULL, &mem, sizeof(perfstat_memory_total_t), 1))
{
SET_MSG_RESULT(result, zbx_dsprintf(NULL, "Cannot obtain system information: %s", zbx_strerror(errno)));
return SYSINFO_RET_FAIL;
}
if (NULL == mode || '\0' == *mode || 0 == strcmp(mode, "free"))
{
SET_UI64_RESULT(result, mem.pgsp_free << ZBX_PERFSTAT_PAGE_SHIFT);
}
else if (0 == strcmp(mode, "total"))
{
SET_UI64_RESULT(result, mem.pgsp_total << ZBX_PERFSTAT_PAGE_SHIFT);
}
else if (0 == strcmp(mode, "used"))
{
SET_UI64_RESULT(result, (mem.pgsp_total - mem.pgsp_free) << ZBX_PERFSTAT_PAGE_SHIFT);
}
else if (0 == strcmp(mode, "pfree"))
{
SET_DBL_RESULT(result, 0 != mem.pgsp_total ? 100.0 * (mem.pgsp_free / (double)mem.pgsp_total) : 100.0);
}
else if (0 == strcmp(mode, "pused"))
{
SET_DBL_RESULT(result, 0 != mem.pgsp_total ? 100.0 - 100.0 * (mem.pgsp_free / (double)mem.pgsp_total) :
0.0);
}
else
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Invalid second parameter."));
return SYSINFO_RET_FAIL;
}
return SYSINFO_RET_OK;
#undef ZBX_PERFSTAT_PAGE_SHIFT
#else
SET_MSG_RESULT(result, zbx_strdup(NULL, "Agent was compiled without support for Perfstat API."));
return SYSINFO_RET_FAIL;
#endif
}
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