DMA implemented.

lab_1/lab1hw.c

@@ -26,12 +26,39 @@ typedef struct sales
 } sales_t;
 } sales_t;
 
 
 void readFile(sales_t *);
 void readFile(sales_t *);
+void dispData(sales_t *);
+void sortData(sales_t *);
 
 
 int main(void)
 int main(void)
 {
 {
-  sales_t data[NFIELD];
+  int i;
+  sales_t *data;
+  sales_t **pArray;
+
+  data = (sales_t*)malloc(sizeof(sales_t)*NFIELD);
+  if (data == NULL)
+  {
+    printf( "memory allocation error\n" );
+    exit(EXIT_FAILURE);
+  }
+
+  pArray = (sales_t**)malloc(sizeof(sales_t*)*NFIELD);
+  if (pArray == NULL)
+  {
+    printf( "memory allocation error\n" );
+    exit(EXIT_FAILURE);
+  }
+
+  for(i = 0; i < NFIELD; i++)
+  {
+    pArray[i] = &data[i];
+  }
+
+  readFile(*pArray);
+
+  dispData(*pArray);
 
 
-  readFile(data);
+  sortData(*pArray);
 
 
   return 0;
   return 0;
 }
 }
@@ -60,3 +87,20 @@ void readFile(sales_t *sp)
 
 
   return;
   return;
 }
 }
+
+void dispData(sales_t *sp)
+{
+  int i;
+  for(i = 0; i < 100; i++)
+  {
+    printf("%d,%d\n", (sp+i)->person_id,(sp+i)->book_id);
+  }
+
+  return;
+}
+
+void sortData(sales_t *sp)
+{
+
+  return;
+}