arrow/util/tracing.h

0001 // Licensed to the Apache Software Foundation (ASF) under one
0002 // or more contributor license agreements.  See the NOTICE file
0003 // distributed with this work for additional information
0004 // regarding copyright ownership.  The ASF licenses this file
0005 // to you under the Apache License, Version 2.0 (the
0006 // "License"); you may not use this file except in compliance
0007 // with the License.  You may obtain a copy of the License at
0008 //
0009 //   http://www.apache.org/licenses/LICENSE-2.0
0010 //
0011 // Unless required by applicable law or agreed to in writing,
0012 // software distributed under the License is distributed on an
0013 // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
0014 // KIND, either express or implied.  See the License for the
0015 // specific language governing permissions and limitations
0016 // under the License.
0017
0018 #pragma once
0019
0020 #include <memory>
0021
0022 #include "arrow/util/visibility.h"
0023
0024 namespace arrow {
0025 namespace util {
0026 namespace tracing {
0027
0028 class ARROW_EXPORT SpanDetails {
0029  public:
0030   virtual ~SpanDetails() {}
0031 };
0032
0033 class ARROW_EXPORT Span {
0034  public:
0035   Span() noexcept;
0036   /// True if this span has been started with START_SPAN
0037   bool valid() const;
0038   /// End the span early
0039   void reset();
0040   std::unique_ptr<SpanDetails> details;
0041 };
0042
0043 }  // namespace tracing
0044 }  // namespace util
0045 }  // namespace arrow