Don't use Arc::from_raw when importing ArrowArray and ArrowSchema (ap…

…ache#1334)

arrow/src/ffi.rs

@@ -107,7 +107,7 @@ bitflags! {
 /// See <https://arrow.apache.org/docs/format/CDataInterface.html#structure-definitions>
 /// This was created by bindgen
 #[repr(C)]
-#[derive(Debug)]
+#[derive(Debug, Clone)]
 pub struct FFI_ArrowSchema {
     format: *const c_char,
     name: *const c_char,
@@ -316,7 +316,7 @@ fn bit_width(data_type: &DataType, i: usize) -> Result<usize> {
 /// See <https://arrow.apache.org/docs/format/CDataInterface.html#structure-definitions>
 /// This was created by bindgen
 #[repr(C)]
-#[derive(Debug)]
+#[derive(Debug, Clone)]
 pub struct FFI_ArrowArray {
     pub(crate) length: i64,
     pub(crate) null_count: i64,
@@ -721,9 +721,11 @@ impl ArrowArray {
                     .to_string(),
             ));
         };
+        let ffi_array = (*array).clone();
+        let ffi_schema = (*schema).clone();
         Ok(Self {
-            array: Arc::from_raw(array as *mut FFI_ArrowArray),
-            schema: Arc::from_raw(schema as *mut FFI_ArrowSchema),
+            array: Arc::new(ffi_array),
+            schema: Arc::new(ffi_schema),
         })
     }