1 files changed, 75 insertions, 0 deletions
diff --git a/src/arrow/c_glib/arrow-glib/writable-file.cpp b/src/arrow/c_glib/arrow-glib/writable-file.cpp
new file mode 100644
index 000000000..74850ec20
--- /dev/null
+++ b/src/arrow/c_glib/arrow-glib/writable-file.cpp
@@ -0,0 +1,75 @@
+/*
+ * 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.
+ */
+
+#include <arrow/api.h>
+
+#include <arrow-glib/error.hpp>
+#include <arrow-glib/writable-file.hpp>
+
+G_BEGIN_DECLS
+
+/**
+ * SECTION: writable-file
+ * @title: GArrowWritableFile
+ * @short_description: File output interface
+ *
+ * #GArrowWritableFile is an interface for file output.
+ */
+
+G_DEFINE_INTERFACE(GArrowWritableFile,
+                   garrow_writable_file,
+                   G_TYPE_OBJECT)
+
+static void
+garrow_writable_file_default_init(GArrowWritableFileInterface *iface)
+{
+}
+
+/**
+ * garrow_writable_file_write_at:
+ * @writable_file: A #GArrowWritableFile.
+ * @position: The write start position.
+ * @data: (array length=n_bytes): The data to be written.
+ * @n_bytes: The number of bytes to be written.
+ * @error: (nullable): Return location for a #GError or %NULL.
+ *
+ * Returns: %TRUE on success, %FALSE if there was an error.
+ */
+gboolean
+garrow_writable_file_write_at(GArrowWritableFile *writable_file,
+                              gint64 position,
+                              const guint8 *data,
+                              gint64 n_bytes,
+                              GError **error)
+{
+  const auto arrow_writable_file =
+    garrow_writable_file_get_raw(writable_file);
+
+  auto status = arrow_writable_file->WriteAt(position, data, n_bytes);
+  return garrow_error_check(error, status, "[io][writable-file][write-at]");
+}
+
+G_END_DECLS
+
+std::shared_ptr<arrow::io::WritableFile>
+garrow_writable_file_get_raw(GArrowWritableFile *writable_file)
+{
+  auto *iface = GARROW_WRITABLE_FILE_GET_IFACE(writable_file);
+  return iface->get_raw(writable_file);
+}