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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"
typedef struct
{
zbx_uint64_t nread;
zbx_uint64_t nwritten;
zbx_uint64_t reads;
zbx_uint64_t writes;
} zbx_kstat_t;
static zbx_kstat_t zbx_kstat;
int get_diskstat(const char *devname, zbx_uint64_t *dstat)
{
return FAIL;
}
static int get_kstat_io(const char *name, zbx_kstat_t *zk)
{
int result = SYSINFO_RET_FAIL;
kstat_ctl_t *kc;
kstat_t *kt;
kstat_io_t kio;
if (0 == (kc = kstat_open()))
return result;
if ('\0' != *name)
{
if (0 == (kt = kstat_lookup(kc, NULL, -1, (char *)name)))
goto clean;
if (KSTAT_TYPE_IO != kt->ks_type)
goto clean;
if (-1 != kstat_read(kc, kt, &kio))
{
zk->nread = kio.nread;
zk->nwritten = kio.nwritten;
zk->reads = kio.reads;
zk->writes = kio.writes;
result = SYSINFO_RET_OK;
}
}
else
{
memset(zk, 0, sizeof(*zk));
for (kt = kc->kc_chain; NULL != kt; kt = kt->ks_next)
{
if (KSTAT_TYPE_IO == kt->ks_type && 0 == strcmp("disk", kt->ks_class))
{
kstat_read(kc, kt, &kio);
zk->nread += kio.nread;
zk->nwritten += kio.nwritten;
zk->reads += kio.reads;
zk->writes += kio.writes;
}
}
result = SYSINFO_RET_OK;
}
clean:
kstat_close(kc);
return result;
}
static int VFS_DEV_READ_BYTES(const char *devname, AGENT_RESULT *result)
{
int ret;
if (SYSINFO_RET_OK == (ret = get_kstat_io(devname, &zbx_kstat)))
SET_UI64_RESULT(result, zbx_kstat.nread);
return ret;
}
static int VFS_DEV_READ_OPERATIONS(const char *devname, AGENT_RESULT *result)
{
int ret;
if (SYSINFO_RET_OK == (ret = get_kstat_io(devname, &zbx_kstat)))
SET_UI64_RESULT(result, zbx_kstat.reads);
return ret;
}
static int VFS_DEV_WRITE_BYTES(const char *devname, AGENT_RESULT *result)
{
int ret;
if (SYSINFO_RET_OK == (ret = get_kstat_io(devname, &zbx_kstat)))
SET_UI64_RESULT(result, zbx_kstat.nwritten);
return ret;
}
static int VFS_DEV_WRITE_OPERATIONS(const char *devname, AGENT_RESULT *result)
{
int ret;
if (SYSINFO_RET_OK == (ret = get_kstat_io(devname, &zbx_kstat)))
SET_UI64_RESULT(result, zbx_kstat.writes);
return ret;
}
static int process_mode_function(AGENT_REQUEST *request, AGENT_RESULT *result, const MODE_FUNCTION *fl)
{
char devname[MAX_STRING_LEN], mode[16];
char *devname_str, *mode_str;
int i;
if (2 < request->nparam)
return SYSINFO_RET_FAIL;
devname_str = get_rparam(request, 0);
if (NULL == devname_str || 0 == strcmp("all", devname_str))
*devname = '\0';
else
strscpy(devname, devname_str);
mode_str = get_rparam(request, 1);
if (NULL == mode_str || '\0' == *mode_str)
strscpy(mode, "bytes");
else
strscpy(mode, mode_str);
for (i = 0; NULL != fl[i].mode; i++)
{
if (0 == strcmp(mode, fl[i].mode))
return (fl[i].function)(devname, result);
}
return SYSINFO_RET_FAIL;
}
int VFS_DEV_WRITE(AGENT_REQUEST *request, AGENT_RESULT *result)
{
const MODE_FUNCTION fl[] =
{
{"bytes", VFS_DEV_WRITE_BYTES},
{"operations", VFS_DEV_WRITE_OPERATIONS},
{NULL, NULL}
};
return process_mode_function(request, result, fl);
}
int VFS_DEV_READ(AGENT_REQUEST *request, AGENT_RESULT *result)
{
const MODE_FUNCTION fl[] =
{
{"bytes", VFS_DEV_READ_BYTES},
{"operations", VFS_DEV_READ_OPERATIONS},
{NULL, NULL}
};
return process_mode_function(request, result, fl);
}
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