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https://github.com/emqx/neuron.git
synced 2026-10-19 23:02:33 +08:00
fengzero
e09963911d
sort modbus point for optimizing read efficiency read modbus point(coil, input, hold reg, input reg) write modbus point(coil, hold reg)
56 lines
2.1 KiB
C
56 lines
2.1 KiB
C
/**
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* NEURON IIoT System for Industry 4.0
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* Copyright (C) 2020-2021 EMQ Technologies Co., Ltd All rights reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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**/
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#ifndef _NEU_MODBUS_POINT_H_
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#define _NEU_MODBUS_POINT_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdbool.h>
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#include <sys/queue.h>
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#include "modbus.h"
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typedef ssize_t (*modbus_point_send_recv)(void *arg, char *send_buf,
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ssize_t send_len, char *recv_buf,
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ssize_t recv_len);
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typedef struct modbus_point_context modbus_point_context_t;
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modbus_point_context_t *modbus_point_init(void *arg);
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int modbus_point_add(modbus_point_context_t *ctx, char *addr,
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modbus_data_type_t type);
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int modbus_point_all_read(modbus_point_context_t *ctx, bool with_head,
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modbus_point_send_recv callback);
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void modbus_point_new_cmd(modbus_point_context_t *ctx);
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int modbus_point_get_cmd_size(modbus_point_context_t *ctx);
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void modbus_point_clean(modbus_point_context_t *ctx);
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void modbus_point_destory(modbus_point_context_t *ctx);
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int modbus_point_find(modbus_point_context_t *ctx, char *addr,
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modbus_data_t *data);
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int modbus_point_write(modbus_point_context_t *ctx, char *addr,
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modbus_data_t *data, modbus_point_send_recv callback);
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#ifdef __cplusplus
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}
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#endif
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#endif |