1 files changed, 71 insertions, 0 deletions
diff --git a/src/arrow/python/pyarrow/cffi.py b/src/arrow/python/pyarrow/cffi.py
new file mode 100644
index 000000000..961b61dee
--- /dev/null
+++ b/src/arrow/python/pyarrow/cffi.py
@@ -0,0 +1,71 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+from __future__ import absolute_import
+
+import cffi
+
+c_source = """
+    struct ArrowSchema {
+      // Array type description
+      const char* format;
+      const char* name;
+      const char* metadata;
+      int64_t flags;
+      int64_t n_children;
+      struct ArrowSchema** children;
+      struct ArrowSchema* dictionary;
+
+      // Release callback
+      void (*release)(struct ArrowSchema*);
+      // Opaque producer-specific data
+      void* private_data;
+    };
+
+    struct ArrowArray {
+      // Array data description
+      int64_t length;
+      int64_t null_count;
+      int64_t offset;
+      int64_t n_buffers;
+      int64_t n_children;
+      const void** buffers;
+      struct ArrowArray** children;
+      struct ArrowArray* dictionary;
+
+      // Release callback
+      void (*release)(struct ArrowArray*);
+      // Opaque producer-specific data
+      void* private_data;
+    };
+
+    struct ArrowArrayStream {
+      int (*get_schema)(struct ArrowArrayStream*, struct ArrowSchema* out);
+      int (*get_next)(struct ArrowArrayStream*, struct ArrowArray* out);
+
+      const char* (*get_last_error)(struct ArrowArrayStream*);
+
+      // Release callback
+      void (*release)(struct ArrowArrayStream*);
+      // Opaque producer-specific data
+      void* private_data;
+    };
+    """
+
+# TODO use out-of-line mode for faster import and avoid C parsing
+ffi = cffi.FFI()
+ffi.cdef(c_source)