Zabbix

/*

** Copyright (C) 2001-2025 Zabbix SIA

**

** This program is free software: you can redistribute it and/or modify it under the terms of

** the GNU Affero General Public License as published by the Free Software Foundation, version 3.

**

** 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 Affero General Public License for more details.

**

** You should have received a copy of the GNU Affero General Public License along with this program.

** If not, see <https://www.gnu.org/licenses/>.

**/

​

#include "../sysinfo.h"

​

int system_swap_size(AGENT_REQUEST *request, AGENT_RESULT *result)

{

    struct sysinfo  info;

    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 (0 != sysinfo(&info))

    {

        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, info.freeswap * (zbx_uint64_t)info.mem_unit);

    }

    else if (0 == strcmp(mode, "total"))

    {

        SET_UI64_RESULT(result, info.totalswap * (zbx_uint64_t)info.mem_unit);

    }

    else if (0 == strcmp(mode, "used"))

    {

        SET_UI64_RESULT(result, (info.totalswap - info.freeswap) * (zbx_uint64_t)info.mem_unit);

    }

    else if (0 == strcmp(mode, "pfree"))

    {

        SET_DBL_RESULT(result, 0 != info.totalswap ? 100.0 * (info.freeswap / (double)info.totalswap) : 100.0);

    }

    else if (0 == strcmp(mode, "pused"))

    {

        SET_DBL_RESULT(result, 0 != info.totalswap ? 100.0 - 100.0 * (info.freeswap / (double)info.totalswap) :

                0.0);

    }

    else

    {

        SET_MSG_RESULT(result, zbx_strdup(NULL, "Invalid second parameter."));

        return SYSINFO_RET_FAIL;

    }

​

    return SYSINFO_RET_OK;

}

​

typedef struct

{

    zbx_uint64_t rio;

    zbx_uint64_t rsect;

    zbx_uint64_t rpag;

    zbx_uint64_t wio;

    zbx_uint64_t wsect;

    zbx_uint64_t wpag;

}

swap_stat_t;

​

#ifdef KERNEL_2_4

#   define INFO_FILE_NAME   "/proc/partitions"

#   define PARSE(line)                              \

                                            \

        if (6 != sscanf(line, "%d %d %*d %*s "                  \

                ZBX_FS_UI64 " %*d " ZBX_FS_UI64 " %*d "         \

                ZBX_FS_UI64 " %*d " ZBX_FS_UI64 " %*d %*d %*d %*d", \

                &rdev_major,        /* major */         \