Diff: WidgetDB.cpp

Revision:

0:6a368cae1bdb

Child:

1:67f91b0caa95

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WidgetDB.cpp	Sat Aug 23 20:16:59 2014 +0000
@@ -0,0 +1,79 @@
+/* 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->name;
+     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].name,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].name,SECOND_WIDGET_DESCRIPTION,min(strlen(SECOND_WIDGET_DESCRIPTION),MAX_DESCRIPTION_LENGTH));
+ }
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