Zabbix

/*

** Zabbix

** Copyright (C) 2001-2023 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 "zbxasyncpoller.h"

#include "zbxcommon.h"

#include "zbxcomms.h"

​

#ifdef HAVE_LIBEVENT

#include "zbxip.h"

#include <event2/util.h>

#include <event2/dns.h>

typedef struct

{

    void                *data;

    zbx_async_task_process_cb_t process_cb;

    zbx_async_task_clear_cb_t   free_cb;

    struct event            *tx_event;

    struct event            *rx_event;

    struct event            *timeout_event;

    char                ip[65];

    int             timeout;

    char                *error;

}

zbx_async_task_t;

​

static void async_task_remove(zbx_async_task_t *task)

{

    task->free_cb(task->data);

​

    if (NULL != task->rx_event)

        event_free(task->rx_event);

​

    if (NULL != task->tx_event)

        event_free(task->tx_event);

​

    event_free(task->timeout_event);

​

    zbx_free(task->error);

    zbx_free(task);

}

​

static const char   *task_state_to_str(zbx_async_task_state_t task_state)

{

    switch (task_state)

    {

        case ZBX_ASYNC_TASK_WRITE:

            return "ZBX_ASYNC_TASK_WRITE";