Adding upstream version 18.2.2.upstream/18.2.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 92 insertions, 0 deletions

diff --git a/src/arrow/c_glib/arrow-glib/writable.cpp b/src/arrow/c_glib/arrow-glib/writable.cpp
new file mode 100644
index 000000000..47c1f3303
--- /dev/null
+++ b/src/arrow/c_glib/arrow-glib/writable.cpp
@@ -0,0 +1,92 @@
+/*
+ * 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.hpp>
+
+G_BEGIN_DECLS
+
+/**
+ * SECTION: writable
+ * @title: GArrowWritable
+ * @short_description: Output interface
+ *
+ * #GArrowWritable is an interface for output. Output must be
+ * writable.
+ */
+
+G_DEFINE_INTERFACE(GArrowWritable,
+                   garrow_writable,
+                   G_TYPE_OBJECT)
+
+static void
+garrow_writable_default_init(GArrowWritableInterface *iface)
+{
+}
+
+/**
+ * garrow_writable_write:
+ * @writable: A #GArrowWritable.
+ * @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_write(GArrowWritable *writable,
+                      const guint8 *data,
+                      gint64 n_bytes,
+                      GError **error)
+{
+  const auto arrow_writable = garrow_writable_get_raw(writable);
+
+  auto status = arrow_writable->Write(data, n_bytes);
+  return garrow_error_check(error, status, "[io][writable][write]");
+}
+
+/**
+ * garrow_writable_flush:
+ * @writable: A #GArrowWritable.
+ * @error: (nullable): Return location for a #GError or %NULL.
+ *
+ * It ensures writing all data on memory to storage.
+ *
+ * Returns: %TRUE on success, %FALSE if there was an error.
+ */
+gboolean
+garrow_writable_flush(GArrowWritable *writable,
+                      GError **error)
+{
+  const auto arrow_writable = garrow_writable_get_raw(writable);
+
+  auto status = arrow_writable->Flush();
+  return garrow_error_check(error, status, "[io][writable][flush]");
+}
+
+G_END_DECLS
+
+std::shared_ptr<arrow::io::Writable>
+garrow_writable_get_raw(GArrowWritable *writable)
+{
+  auto *iface = GARROW_WRITABLE_GET_IFACE(writable);
+  return iface->get_raw(writable);
+}