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  1. //===- FDRRecordConsumer.h - XRay Flight Data Recorder Mode Records -------===//
  2. //
  3. // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
  4. // See https://llvm.org/LICENSE.txt for license information.
  5. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  6. //
  7. //===----------------------------------------------------------------------===//
  8. #ifndef LLVM_XRAY_FDRRECORDCONSUMER_H
  9. #define LLVM_XRAY_FDRRECORDCONSUMER_H
  10.  
  11. #include "llvm/Support/Error.h"
  12. #include "llvm/XRay/FDRRecords.h"
  13. #include <algorithm>
  14. #include <memory>
  15. #include <vector>
  16.  
  17. namespace llvm {
  18. namespace xray {
  19.  
  20. class RecordConsumer {
  21. public:
  22.   virtual Error consume(std::unique_ptr<Record> R) = 0;
  23.   virtual ~RecordConsumer() = default;
  24. };
  25.  
  26. // This consumer will collect all the records into a vector of records, in
  27. // arrival order.
  28. class LogBuilderConsumer : public RecordConsumer {
  29.   std::vector<std::unique_ptr<Record>> &Records;
  30.  
  31. public:
  32.   explicit LogBuilderConsumer(std::vector<std::unique_ptr<Record>> &R)
  33.       : Records(R) {}
  34.  
  35.   Error consume(std::unique_ptr<Record> R) override;
  36. };
  37.  
  38. // A PipelineConsumer applies a set of visitors to every consumed Record, in the
  39. // order by which the visitors are added to the pipeline in the order of
  40. // appearance.
  41. class PipelineConsumer : public RecordConsumer {
  42.   std::vector<RecordVisitor *> Visitors;
  43.  
  44. public:
  45.   PipelineConsumer(std::initializer_list<RecordVisitor *> V) : Visitors(V) {}
  46.  
  47.   Error consume(std::unique_ptr<Record> R) override;
  48. };
  49.  
  50. } // namespace xray
  51. } // namespace llvm
  52.  
  53. #endif // LLVM_XRAY_FDRRECORDCONSUMER_H
  54.