/*####COPYRIGHTBEGIN#### ------------------------------------------- Copyright (C) 2022 Steve Karg 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. 59 Temple Place - Suite 330 Boston, MA 02111-1307, USA. As a special exception, if other files instantiate templates or use macros or inline functions from this file, or you compile this file and link it with other works to produce a work based on this file, this file does not by itself cause the resulting work to be covered by the GNU General Public License. However the source code for this file must still be made available in accordance with section (3) of the GNU General Public License. This exception does not invalidate any other reasons why a work based on this file might be covered by the GNU General Public License. ------------------------------------------- ####COPYRIGHTEND####*/ #include #include "bacnet/weeklyschedule.h" #include "bacnet/bacdcode.h" #include "bacapp.h" /** * @brief decode a BACnetWeeklySchedule * @param apdu - buffer of data to be decoded * @param max_apdu_len - number of bytes in the buffer * @param value - stores the decoded property value * @return number of bytes decoded, or BACNET_STATUS_ERROR if errors occur */ int bacnet_weeklyschedule_decode( uint8_t *apdu, int max_apdu_len, BACNET_WEEKLY_SCHEDULE *value) { int len = 0; int apdu_len = 0; int wi; if (!apdu) { return BACNET_STATUS_ERROR; } if (max_apdu_len <= 0) { return BACNET_STATUS_ERROR; } value->singleDay = false; for (wi = 0; wi < 7; wi++) { len = bacnet_dailyschedule_decode(&apdu[apdu_len], max_apdu_len - apdu_len, &value->weeklySchedule[wi]); if (len < 0) { if (wi == 1) { value->singleDay = true; break; } return BACNET_STATUS_ERROR; } apdu_len += len; } return apdu_len; } /** * @brief Encode the Weekly_Schedule property * from clause 12 Schedule Object Type * BACnetARRAY[7] of BACnetDailySchedule * * @param apdu - buffer of data to be encoded, or NULL for length * @param tag_number - context tag number to be encoded * @param value - value to be encoded * @return the number of apdu bytes encoded, or BACNET_STATUS_ERROR */ int bacnet_weeklyschedule_encode(uint8_t *apdu, BACNET_WEEKLY_SCHEDULE *value) { int apdu_len = 0; int len = 0; int wi; uint8_t *apdu_offset = NULL; for (wi = 0; wi < (value->singleDay ? 1 : 7); wi++) { /* not enough room to write data */ if (apdu) { apdu_offset = &apdu[apdu_len]; } len = bacnet_dailyschedule_encode( apdu_offset, &value->weeklySchedule[wi]); if (len < 0) { return BACNET_STATUS_ERROR; } apdu_len += len; } return apdu_len; } /** * @brief Encode a context tagged Weekly_Schedule complex data type * @param apdu - the APDU buffer, or NULL for buffer length * @param tag_number - the APDU buffer size * @param value - WeeklySchedule structure * @return length of the APDU buffer, or 0 if not able to encode */ int bacnet_weeklyschedule_context_encode( uint8_t *apdu, uint8_t tag_number, BACNET_WEEKLY_SCHEDULE *value) { int len = 0; int apdu_len = 0; uint8_t *apdu_offset = NULL; if (value) { apdu_offset = apdu; len = encode_opening_tag(apdu_offset, tag_number); apdu_len += len; if (apdu) { apdu_offset = &apdu[apdu_len]; } len = bacnet_weeklyschedule_encode(apdu_offset, value); if (len == BACNET_STATUS_ERROR) { return 0; } apdu_len += len; if (apdu) { apdu_offset = &apdu[apdu_len]; } len = encode_closing_tag(apdu_offset, tag_number); apdu_len += len; } return apdu_len; } /** * @brief decode a context encoded Weekly_Schedule property * @param apdu - buffer of data to be decoded * @param max_apdu_len - number of bytes in the buffer * @param tag_number - context tag number to match * @param value - stores the decoded property value * @return number of bytes decoded, or BACNET_STATUS_ERROR if an error occurs */ int bacnet_weeklyschedule_context_decode(uint8_t *apdu, int max_apdu_len, uint8_t tag_number, BACNET_WEEKLY_SCHEDULE *value) { int apdu_len = 0; int len; if (bacnet_is_opening_tag_number( &apdu[apdu_len], max_apdu_len - apdu_len, tag_number, &len)) { apdu_len += len; } else { return BACNET_STATUS_ERROR; } len = bacnet_weeklyschedule_decode( &apdu[apdu_len], max_apdu_len - apdu_len, value); if (len > 0) { apdu_len += len; } else { return BACNET_STATUS_ERROR; } if (bacnet_is_closing_tag_number( &apdu[apdu_len], max_apdu_len - apdu_len, tag_number, &len)) { apdu_len += len; } else { return BACNET_STATUS_ERROR; } return apdu_len; } /** * @brief Compare the BACnetWeeklySchedule complex data * @param value1 - BACNET_WEEKLY_SCHEDULE structure * @param value2 - BACNET_WEEKLY_SCHEDULE structure * @return true if the same */ bool bacnet_weeklyschedule_same( BACNET_WEEKLY_SCHEDULE *value1, BACNET_WEEKLY_SCHEDULE *value2) { BACNET_APPLICATION_DATA_VALUE adv1, adv2; BACNET_DAILY_SCHEDULE *ds1, *ds2; BACNET_TIME_VALUE *tv1, *tv2; int wi, ti; for (wi = 0; wi < 7; wi++) { ds1 = &value1->weeklySchedule[wi]; ds2 = &value2->weeklySchedule[wi]; if (ds1->TV_Count != ds2->TV_Count) { return false; } for (ti = 0; ti < ds1->TV_Count; ti++) { tv1 = &ds1->Time_Values[ti]; tv2 = &ds2->Time_Values[ti]; if (0 != datetime_compare_time(&tv1->Time, &tv2->Time)) { return false; } /* TODO the conversion can be avoided by adding a "primitive" variant of bacapp_same_value(), at the cost of some code duplication */ bacnet_primitive_to_application_data_value(&adv1, &tv1->Value); bacnet_primitive_to_application_data_value(&adv2, &tv2->Value); if (!bacapp_same_value(&adv1, &adv2)) { return false; } } } return true; }