/*
** 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.
**/

#ifndef ZABBIX_ZBXRTC_H
#define ZABBIX_ZBXRTC_H

#include "zbxalgo.h"
#include "zbxipcservice.h"
#include "zbxthreads.h"
#include "zbxjson.h"

#define ZBX_IPC_SERVICE_RTC	"rtc"

typedef enum
{
	ZBX_RTC_SUB_CLIENT,
	ZBX_RTC_SUB_SERVICE
}
zbx_rtc_sub_type_t;

typedef union
{
	zbx_ipc_client_t	*client;
	char			*service;
}
zbx_rtc_sub_source_t;

typedef struct
{
	zbx_rtc_sub_type_t	type;
	zbx_rtc_sub_source_t	source;
	unsigned char		process_type;
	int			process_num;
	zbx_vector_uint32_t	msgs;
}
zbx_rtc_sub_t;

ZBX_PTR_VECTOR_DECL(rtc_sub, zbx_rtc_sub_t *)

typedef struct
{
	zbx_ipc_client_t	*client;
	zbx_uint32_t		code;
}
zbx_rtc_hook_t;

ZBX_PTR_VECTOR_DECL(rtc_hook, zbx_rtc_hook_t *)

typedef struct
{
	zbx_ipc_service_t	service;
	zbx_vector_rtc_sub_t	subs;
	zbx_vector_rtc_hook_t	hooks;
}
zbx_rtc_t;

typedef int	(*zbx_rtc_process_request_ex_func_t)(zbx_rtc_t *, zbx_uint32_t, const unsigned char *, char **);

/* provider API */
int	zbx_rtc_init(zbx_rtc_t *rtc ,char **error);
void 	zbx_rtc_dispatch(zbx_rtc_t *rtc, zbx_ipc_client_t *client, zbx_ipc_message_t *message,
		zbx_rtc_process_request_ex_func_t cb_proc_req);
int	zbx_rtc_wait_config_sync(zbx_rtc_t *rtc, zbx_rtc_process_request_ex_func_t cb_proc_req);
void	zbx_rtc_shutdown_subs(zbx_rtc_t *rtc);

/* client API */
void	zbx_rtc_notify_config_sync(int config_timeout, zbx_ipc_async_socket_t *rtc);

void	zbx_rtc_subscribe(unsigned char proc_type, int proc_num, zbx_uint32_t *msgs, int msgs_num, int config_timeout,
		zbx_ipc_async_socket_t *rtc);
void	zbx_rtc_subscribe_service(unsigned char proc_type, int proc_num, zbx_uint32_t *msgs, int msgs_num,
		int config_timeout, const char *service);
int	zbx_rtc_wait(zbx_ipc_async_socket_t *rtc, const zbx_thread_info_t *info, zbx_uint32_t *cmd,
		unsigned char **data, int timeout);
int	zbx_rtc_reload_config_cache(char **error);

int	zbx_rtc_parse_options(const char *opt, zbx_uint32_t *code, struct zbx_json *j, char **error);
int	zbx_rtc_notify(zbx_rtc_t *rtc, unsigned char process_type, int process_num, zbx_uint32_t code,
		const char *data, zbx_uint32_t size);

int	zbx_rtc_async_exchange(char **data, zbx_uint32_t code, int config_timeout, char **error);

int	zbx_rtc_get_command_target(const char *data, pid_t *pid, int *proc_type, int *proc_num, int *scope,
		char **result);

void	zbx_rtc_sub_free(zbx_rtc_sub_t *sub);
#endif