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 std::move(CurrentBlock.Records)}); 26 CurrentBlock.ProcessID = 0; 27 CurrentBlock.ThreadID = 0; 28 CurrentBlock.Records = {}; 29 } 30 CurrentState = State::ExtentsFound; 31 return Error::success(); 32 } 33 34 Error BlockIndexer::visit(WallclockRecord &R) { 35 CurrentBlock.Records.push_back(&R); 36 return Error::success(); 37 } 38 39 Error BlockIndexer::visit(NewCPUIDRecord &R) { 40 CurrentBlock.Records.push_back(&R); 41 return Error::success(); 42 } 43 44 Error BlockIndexer::visit(TSCWrapRecord &R) { 45 CurrentBlock.Records.push_back(&R); 46 return Error::success(); 47 } 48 49 Error BlockIndexer::visit(CustomEventRecord &R) { 50 CurrentBlock.Records.push_back(&R); 51 return Error::success(); 52 } 53 54 Error BlockIndexer::visit(CallArgRecord &R) { 55 CurrentBlock.Records.push_back(&R); 56 return Error::success(); 57 }; 58 59 Error BlockIndexer::visit(PIDRecord &R) { 60 CurrentBlock.ProcessID = R.pid(); 61 CurrentBlock.Records.push_back(&R); 62 return Error::success(); 63 } 64 65 Error BlockIndexer::visit(NewBufferRecord &R) { 66 CurrentState = State::ThreadIDFound; 67 CurrentBlock.ThreadID = R.tid(); 68 CurrentBlock.Records.push_back(&R); 69 return Error::success(); 70 } 71 72 Error BlockIndexer::visit(EndBufferRecord &R) { 73 CurrentState = State::SeekExtents; 74 CurrentBlock.Records.push_back(&R); 75 return Error::success(); 76 } 77 78 Error BlockIndexer::visit(FunctionRecord &R) { 79 CurrentBlock.Records.push_back(&R); 80 return Error::success(); 81 } 82 83 Error BlockIndexer::flush() { 84 CurrentState = State::SeekExtents; 85 Index::iterator It; 86 std::tie(It, std::ignore) = 87 Indices.insert({{CurrentBlock.ProcessID, CurrentBlock.ThreadID}, {}}); 88 It->second.push_back({CurrentBlock.ProcessID, CurrentBlock.ThreadID, 89 std::move(CurrentBlock.Records)}); 90 CurrentBlock.ProcessID = 0; 91 CurrentBlock.ThreadID = 0; 92 CurrentBlock.Records = {}; 93 return Error::success(); 94 } 95 96 } // namespace xray 97 } // namespace llvm 98