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/*
** Zabbix
** Copyright (C) 2001-2013 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 "sysinc.h"
#include "module.h"
/* the variable keeps timeout setting for item processing */
static int item_timeout = 0;
int zbx_module_dummy_ping(AGENT_REQUEST *request, AGENT_RESULT *result);
int zbx_module_dummy_echo(AGENT_REQUEST *request, AGENT_RESULT *result);
int zbx_module_dummy_random(AGENT_REQUEST *request, AGENT_RESULT *result);
static ZBX_METRIC keys[] =
/* KEY FLAG FUNCTION TEST PARAMETERS */
{
{"dummy.ping", 0, zbx_module_dummy_ping, NULL},
{"dummy.echo", CF_HAVEPARAMS, zbx_module_dummy_echo, "a message"},
{"dummy.random", CF_HAVEPARAMS, zbx_module_dummy_random,"1,1000"},
{NULL}
};
/******************************************************************************
* *
* Function: zbx_module_api_version *
* *
* Purpose: returns version number of the module interface *
* *
* Return value: ZBX_MODULE_API_VERSION_ONE - the only version supported by *
* Zabbix currently *
* *
******************************************************************************/
int zbx_module_api_version()
{
return ZBX_MODULE_API_VERSION_ONE;
}
/******************************************************************************
* *
* Function: zbx_module_item_timeout *
* *
* Purpose: set timeout value for processing of items *
* *
* Parameters: timeout - timeout in seconds, 0 - no timeout set *
* *
******************************************************************************/
void zbx_module_item_timeout(int timeout)
{
item_timeout = timeout;
}
/******************************************************************************
* *
* Function: zbx_module_item_list *
* *
* Purpose: returns list of item keys supported by the module *
* *
* Return value: list of item keys *
* *
******************************************************************************/
ZBX_METRIC *zbx_module_item_list()
{
return keys;
}
int zbx_module_dummy_ping(AGENT_REQUEST *request, AGENT_RESULT *result)
{
SET_UI64_RESULT(result, 1);
return SYSINFO_RET_OK;
}
int zbx_module_dummy_echo(AGENT_REQUEST *request, AGENT_RESULT *result)
{
char *param;
if (1 != request->nparam)
{
/* set optional error message */
SET_MSG_RESULT(result, strdup("Invalid number of parameters"));
return SYSINFO_RET_FAIL;
}
param = get_rparam(request, 0);
SET_STR_RESULT(result, strdup(param));
return SYSINFO_RET_OK;
}
/******************************************************************************
* *
* Function: zbx_module_dummy_random *
* *
* Purpose: a main entry point for processing of an item *
* *
* Parameters: request - structure that contains item key and parameters *
* request->key - item key without parameters *
* request->nparam - number of parameters *
* request->timeout - processing should not take longer than *
* this number of seconds *
* request->params[N-1] - pointers to item key parameters *
* *
* result - structure that will contain result *
* *
* Return value: SYSINFO_RET_FAIL - function failed, item will be marked *
* as not supported by zabbix *
* SYSINFO_RET_OK - success *
* *
* Comment: get_rparam(request, N-1) can be used to get a pointer to the Nth *
* parameter starting from 0 (first parameter). Make sure it exists *
* by checking value of request->nparam. *
* *
******************************************************************************/
int zbx_module_dummy_random(AGENT_REQUEST *request, AGENT_RESULT *result)
{
char *param1, *param2;
int from, to;
if (request->nparam != 2)
{
/* set optional error message */
SET_MSG_RESULT(result, strdup("Invalid number of parameters"));
return SYSINFO_RET_FAIL;
}
param1 = get_rparam(request, 0);
param2 = get_rparam(request, 1);
/* there is no strict validation of parameters for simplicity sake */
from = atoi(param1);
to = atoi(param2);
if (from > to)
{
SET_MSG_RESULT(result, strdup("Incorrect range given"));
return SYSINFO_RET_FAIL;
}
SET_UI64_RESULT(result, from + rand() % (to - from + 1));
return SYSINFO_RET_OK;
}
/******************************************************************************
* *
* Function: zbx_module_init *
* *
* Purpose: the function is called on agent startup *
* It should be used to call any initialization routines *
* *
* Return value: ZBX_MODULE_OK - success *
* ZBX_MODULE_FAIL - module initialization failed *
* *
* Comment: the module won't be loaded in case of ZBX_MODULE_FAIL *
* *
******************************************************************************/
int zbx_module_init()
{
/* initialization for dummy.random */
srand(time(NULL));
return ZBX_MODULE_OK;
}
/******************************************************************************
* *
* Function: zbx_module_uninit *
* *
* Purpose: the function is called on agent shutdown *
* It should be used to cleanup used resources if there are any *
* *
* Return value: ZBX_MODULE_OK - success *
* ZBX_MODULE_FAIL - function failed *
* *
******************************************************************************/
int zbx_module_uninit()
{
return ZBX_MODULE_OK;
}
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