include/llvm/XRay/FDRRecordConsumer.h

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