1 files changed, 39 insertions, 0 deletions
diff --git a/google/api_core/future/_helpers.py b/google/api_core/future/_helpers.py
new file mode 100644
index 0000000..9e88ca9
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+++ b/google/api_core/future/_helpers.py
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+# Copyright 2017, Google LLC
+#
+# Licensed 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.
+
+"""Private helpers for futures."""
+
+import logging
+import threading
+
+
+_LOGGER = logging.getLogger(__name__)
+
+
+def start_daemon_thread(*args, **kwargs):
+    """Starts a thread and marks it as a daemon thread."""
+    thread = threading.Thread(*args, **kwargs)
+    thread.daemon = True
+    thread.start()
+    return thread
+
+
+def safe_invoke_callback(callback, *args, **kwargs):
+    """Invoke a callback, swallowing and logging any exceptions."""
+    # pylint: disable=bare-except
+    # We intentionally want to swallow all exceptions.
+    try:
+        return callback(*args, **kwargs)
+    except Exception:
+        _LOGGER.exception("Error while executing Future callback.")