1 //===- BlockIndexer.cpp - FDR Block Indexing VIsitor ----------------------===// 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 // 10 // An implementation of the RecordVisitor which generates a mapping between a 11 // thread and a range of records representing a block. 12 // 13 //===----------------------------------------------------------------------===// 14 #include "llvm/XRay/BlockIndexer.h" 15 16 namespace llvm { 17 namespace xray { 18 19 Error BlockIndexer::visit(BufferExtents &) { 20 if (CurrentState == State::ThreadIDFound) { 21 Index::iterator It; 22 std::tie(It, std::ignore) = 23 Indices.insert({{CurrentBlock.ProcessID, CurrentBlock.ThreadID}, {}}); 24 It->second.push_back({CurrentBlock.ProcessID, CurrentBlock.ThreadID, 25 CurrentBlock.WallclockTime, 26 std::move(CurrentBlock.Records)}); 27 CurrentBlock.ProcessID = 0; 28 CurrentBlock.ThreadID = 0; 29 CurrentBlock.WallclockTime = nullptr; 30 CurrentBlock.Records = {}; 31 } 32 CurrentState = State::ExtentsFound; 33 return Error::success(); 34 } 35 36 Error BlockIndexer::visit(WallclockRecord &R) { 37 CurrentBlock.Records.push_back(&R); 38 CurrentBlock.WallclockTime = &R; 39 return Error::success(); 40 } 41 42 Error BlockIndexer::visit(NewCPUIDRecord &R) { 43 CurrentBlock.Records.push_back(&R); 44 return Error::success(); 45 } 46 47 Error BlockIndexer::visit(TSCWrapRecord &R) { 48 CurrentBlock.Records.push_back(&R); 49 return Error::success(); 50 } 51 52 Error BlockIndexer::visit(CustomEventRecord &R) { 53 CurrentBlock.Records.push_back(&R); 54 return Error::success(); 55 } 56 57 Error BlockIndexer::visit(CallArgRecord &R) { 58 CurrentBlock.Records.push_back(&R); 59 return Error::success(); 60 } 61 62 Error BlockIndexer::visit(PIDRecord &R) { 63 CurrentBlock.ProcessID = R.pid(); 64 CurrentBlock.Records.push_back(&R); 65 return Error::success(); 66 } 67 68 Error BlockIndexer::visit(NewBufferRecord &R) { 69 CurrentState = State::ThreadIDFound; 70 CurrentBlock.ThreadID = R.tid(); 71 CurrentBlock.Records.push_back(&R); 72 return Error::success(); 73 } 74 75 Error BlockIndexer::visit(EndBufferRecord &R) { 76 CurrentState = State::SeekExtents; 77 CurrentBlock.Records.push_back(&R); 78 return Error::success(); 79 } 80 81 Error BlockIndexer::visit(FunctionRecord &R) { 82 CurrentBlock.Records.push_back(&R); 83 return Error::success(); 84 } 85 86 Error BlockIndexer::flush() { 87 CurrentState = State::SeekExtents; 88 Index::iterator It; 89 std::tie(It, std::ignore) = 90 Indices.insert({{CurrentBlock.ProcessID, CurrentBlock.ThreadID}, {}}); 91 It->second.push_back({CurrentBlock.ProcessID, CurrentBlock.ThreadID, 92 CurrentBlock.WallclockTime, 93 std::move(CurrentBlock.Records)}); 94 CurrentBlock.ProcessID = 0; 95 CurrentBlock.ThreadID = 0; 96 CurrentBlock.Records = {}; 97 return Error::success(); 98 } 99 100 } // namespace xray 101 } // namespace llvm 102