1 files changed, 48 insertions, 0 deletions
diff --git a/src/backend/tioga/Varray.c b/src/backend/tioga/Varray.c
new file mode 100644
index 00000000000..3ed45c66561
--- /dev/null
+++ b/src/backend/tioga/Varray.c
@@ -0,0 +1,48 @@
+/* ************************************************************************
+ *
+ * Varray.c --
+ *
+ *    routines to provide a generic set of functions to handle variable sized
+ * arrays.    originally by Jiang Wu
+ * ************************************************************************/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "Varray.h"
+
+Varray *NewVarray(size_t nobj, size_t size)
+/*
+ * NewVarray -- allocate a Varray to contain an array of val each of which
+ *              is size valSize.  Returns the Varray if successful,
+ *              returns NULL otherwise.
+ */
+{
+  Varray *result;
+
+  if (nobj == 0)
+    nobj = VARRAY_INITIAL_SIZE;
+  result = (Varray *) malloc(sizeof(Varray));
+  result->val = (void *) calloc(nobj, size);
+  if (result == NULL)
+    return NULL;
+  result->size = size;
+  result->nobj = 0;
+  result->maxObj = nobj;
+  return result;
+}
+
+int AppendVarray(Varray *array, void *value, CopyingFunct copy)
+/*
+ * AppendVarray -- append value to the end of array.  This function
+ *                 returns the size of the array after the addition of
+ *                 the new element.
+ */
+{
+  copy(value, VARRAY_NTH(array->val, array->size, array->nobj));
+  array->nobj++;
+  if (array->nobj >= array->maxObj) {
+    ENLARGE_VARRAY(array, array->maxObj / 2);
+  }
+  return array->nobj;
+}
+