File content as of revision 1:67f91b0caa95:

/* Copyright C2014 ARM, MIT License
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
 * and associated documentation files the "Software", to deal in the Software without restriction,
 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all copies or
 * substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
 
 #include "WidgetDB.h"
 
 // min function
 extern "C" int min(int val1,int val2) {
     if (val1 < val2) return val1;
     return val2;
 }
 
 // constructor
 WidgetDB::WidgetDB() {
     this->initDB();
 }
 
 // destructor
 WidgetDB::~WidgetDB() {
 }
 
 // lookup and return a widget
 WidgetEntry *WidgetDB::lookup(int rfid) {
     WidgetEntry *entry = NULL;
     bool         found = false;
     
     // linear search through the list until we end or find something...
     for(int i=0;i<MAX_NUM_WIDGETS &&!found;++i) {
         if (this->m_db[i].rfid == rfid) {
             found = true;
             entry = &(this->m_db[i]);
         }
     }
     
     return entry;
 }
 
 // lookup a widget and return its name
 char *WidgetDB::lookupWidgetName(int rfid) {
     WidgetEntry *entry = this->lookup(rfid);
     if (entry != NULL) return entry->name;
     return NULL;
 }
     
 // lookup a widget and return its description
 char *WidgetDB::lookupWidgetDescription(int rfid) {
     WidgetEntry *entry = this->lookup(rfid);
     if (entry != NULL) return entry->description;
     return NULL;
 }
 
 // initialize the DB
 void WidgetDB::initDB() {
     // First Widget
     memset((void *)&(this->m_db[FIRST_WIDGET]),0,sizeof(WidgetEntry));
     this->m_db[FIRST_WIDGET].rfid = FIRST_WIDGET_RFID;
     strncpy(this->m_db[FIRST_WIDGET].name,FIRST_WIDGET_NAME,min(strlen(FIRST_WIDGET_NAME),MAX_NAME_LENGTH));
     strncpy(this->m_db[FIRST_WIDGET].description,FIRST_WIDGET_DESCRIPTION,min(strlen(FIRST_WIDGET_DESCRIPTION),MAX_DESCRIPTION_LENGTH));
     
     // Second Widget
     memset((void *)&(this->m_db[SECOND_WIDGET]),0,sizeof(WidgetEntry));
     this->m_db[SECOND_WIDGET].rfid = SECOND_WIDGET_RFID;
     strncpy(this->m_db[SECOND_WIDGET].name,SECOND_WIDGET_NAME,min(strlen(SECOND_WIDGET_NAME),MAX_NAME_LENGTH));
     strncpy(this->m_db[SECOND_WIDGET].description,SECOND_WIDGET_DESCRIPTION,min(strlen(SECOND_WIDGET_DESCRIPTION),MAX_DESCRIPTION_LENGTH));
     
     // Third Widget
     memset((void *)&(this->m_db[THIRD_WIDGET]),0,sizeof(WidgetEntry));
     this->m_db[THIRD_WIDGET].rfid = THIRD_WIDGET_RFID;
     strncpy(this->m_db[THIRD_WIDGET].name,THIRD_WIDGET_NAME,min(strlen(THIRD_WIDGET_NAME),MAX_NAME_LENGTH));
     strncpy(this->m_db[THIRD_WIDGET].description,THIRD_WIDGET_DESCRIPTION,min(strlen(THIRD_WIDGET_DESCRIPTION),MAX_DESCRIPTION_LENGTH));
 }