| /* |
| Licensed to the Apache Software Foundation (ASF) under one |
| or more contributor license agreements. See the NOTICE file |
| distributed with this work for additional information |
| regarding copyright ownership. The ASF licenses this file |
| to you under the Apache License, Version 2.0 (the |
| "License"); you may not use this file except in compliance |
| with the License. You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, |
| software distributed under the License is distributed on an |
| "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| KIND, either express or implied. See the License for the |
| specific language governing permissions and limitations |
| under the License. |
| */ |
| |
| #include <stdio.h> |
| #include <plc4c/spi/evaluation_helper.h> |
| #include "s7_var_request_parameter_item.h" |
| |
| // Array of discriminator values that match the enum type constants. |
| // (The order is identical to the enum constants so we can use the |
| // enum constant to directly access a given types discriminator values) |
| const plc4c_s7_read_write_s7_var_request_parameter_item_discriminator plc4c_s7_read_write_s7_var_request_parameter_item_discriminators[] = { |
| {/* plc4c_s7_read_write_s7_var_request_parameter_item_address */ |
| .itemType = 0x12} |
| }; |
| |
| // Function returning the discriminator values for a given type constant. |
| plc4c_s7_read_write_s7_var_request_parameter_item_discriminator plc4c_s7_read_write_s7_var_request_parameter_item_get_discriminator(plc4c_s7_read_write_s7_var_request_parameter_item_type type) { |
| return plc4c_s7_read_write_s7_var_request_parameter_item_discriminators[type]; |
| } |
| |
| // Create an empty NULL-struct |
| static const plc4c_s7_read_write_s7_var_request_parameter_item plc4c_s7_read_write_s7_var_request_parameter_item_null_const; |
| |
| plc4c_s7_read_write_s7_var_request_parameter_item plc4c_s7_read_write_s7_var_request_parameter_item_null() { |
| return plc4c_s7_read_write_s7_var_request_parameter_item_null_const; |
| } |
| |
| |
| // Parse function. |
| plc4c_return_code plc4c_s7_read_write_s7_var_request_parameter_item_parse(plc4c_spi_read_buffer* io, plc4c_s7_read_write_s7_var_request_parameter_item** _message) { |
| uint16_t startPos = plc4c_spi_read_get_pos(io); |
| uint16_t curPos; |
| plc4c_return_code _res = OK; |
| |
| // Allocate enough memory to contain this data structure. |
| (*_message) = malloc(sizeof(plc4c_s7_read_write_s7_var_request_parameter_item)); |
| if(*_message == NULL) { |
| return NO_MEMORY; |
| } |
| |
| // Discriminator Field (itemType) (Used as input to a switch field) |
| uint8_t itemType = 0; |
| _res = plc4c_spi_read_unsigned_byte(io, 8, (uint8_t*) &itemType); |
| if(_res != OK) { |
| return _res; |
| } |
| |
| // Switch Field (Depending on the discriminator values, passes the instantiation to a sub-type) |
| if(itemType == 0x12) { /* S7VarRequestParameterItemAddress */ |
| (*_message)->_type = plc4c_s7_read_write_s7_var_request_parameter_item_type_plc4c_s7_read_write_s7_var_request_parameter_item_address; |
| |
| // Implicit Field (itemLength) (Used for parsing, but it's value is not stored as it's implicitly given by the objects content) |
| uint8_t itemLength = 0; |
| _res = plc4c_spi_read_unsigned_byte(io, 8, (uint8_t*) &itemLength); |
| if(_res != OK) { |
| return _res; |
| } |
| |
| |
| |
| // Simple Field (address) |
| plc4c_s7_read_write_s7_address* address; |
| _res = plc4c_s7_read_write_s7_address_parse(io, (void*) &address); |
| if(_res != OK) { |
| return _res; |
| } |
| (*_message)->s7_var_request_parameter_item_address_address = address; |
| |
| } |
| |
| return OK; |
| } |
| |
| plc4c_return_code plc4c_s7_read_write_s7_var_request_parameter_item_serialize(plc4c_spi_write_buffer* io, plc4c_s7_read_write_s7_var_request_parameter_item* _message) { |
| plc4c_return_code _res = OK; |
| |
| // Discriminator Field (itemType) |
| plc4c_spi_write_unsigned_byte(io, 8, plc4c_s7_read_write_s7_var_request_parameter_item_get_discriminator(_message->_type).itemType); |
| |
| // Switch Field (Depending of the current type, serialize the sub-type elements) |
| switch(_message->_type) { |
| case plc4c_s7_read_write_s7_var_request_parameter_item_type_plc4c_s7_read_write_s7_var_request_parameter_item_address: { |
| |
| // Implicit Field (itemLength) (Used for parsing, but it's value is not stored as it's implicitly given by the objects content) |
| _res = plc4c_spi_write_unsigned_byte(io, 8, plc4c_s7_read_write_s7_address_length_in_bytes(_message->s7_var_request_parameter_item_address_address)); |
| if(_res != OK) { |
| return _res; |
| } |
| |
| // Simple Field (address) |
| _res = plc4c_s7_read_write_s7_address_serialize(io, _message->s7_var_request_parameter_item_address_address); |
| if(_res != OK) { |
| return _res; |
| } |
| |
| break; |
| } |
| } |
| |
| return OK; |
| } |
| |
| uint16_t plc4c_s7_read_write_s7_var_request_parameter_item_length_in_bytes(plc4c_s7_read_write_s7_var_request_parameter_item* _message) { |
| return plc4c_s7_read_write_s7_var_request_parameter_item_length_in_bits(_message) / 8; |
| } |
| |
| uint16_t plc4c_s7_read_write_s7_var_request_parameter_item_length_in_bits(plc4c_s7_read_write_s7_var_request_parameter_item* _message) { |
| uint16_t lengthInBits = 0; |
| |
| // Discriminator Field (itemType) |
| lengthInBits += 8; |
| |
| // Depending of the current type, add the length of sub-type elements ... |
| switch(_message->_type) { |
| case plc4c_s7_read_write_s7_var_request_parameter_item_type_plc4c_s7_read_write_s7_var_request_parameter_item_address: { |
| |
| // Implicit Field (itemLength) |
| lengthInBits += 8; |
| |
| |
| // Simple field (address) |
| lengthInBits += plc4c_s7_read_write_s7_address_length_in_bits(_message->s7_var_request_parameter_item_address_address); |
| |
| break; |
| } |
| } |
| |
| return lengthInBits; |
| } |
| |