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02f097e122
Summary: This change adds a `BlockIndexer` type which maintains pointers to records that belong to the same process+thread pairs. The indexing happens with order of appearance of records as they are visited. This version of the indexer currently only supports FDR version 3 logs, which contain `BufferExtent` records. We will add support for v2 and v1 logs in follow-up patches. This is another part of D50441. Reviewers: eizan, kpw, mboerger Reviewed By: mboerger Subscribers: mboerger, mgorny, hiraditya, llvm-commits Differential Revision: https://reviews.llvm.org/D51673 llvm-svn: 341518
98 lines
2.8 KiB
C++
98 lines
2.8 KiB
C++
//===- BlockIndexer.cpp - FDR Block Indexing VIsitor ----------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// An implementation of the RecordVisitor which generates a mapping between a
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// thread and a range of records representing a block.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/XRay/BlockIndexer.h"
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namespace llvm {
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namespace xray {
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Error BlockIndexer::visit(BufferExtents &) {
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if (CurrentState == State::ThreadIDFound) {
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Index::iterator It;
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std::tie(It, std::ignore) =
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Indices.insert({{CurrentBlock.ProcessID, CurrentBlock.ThreadID}, {}});
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It->second.push_back({CurrentBlock.ProcessID, CurrentBlock.ThreadID,
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std::move(CurrentBlock.Records)});
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CurrentBlock.ProcessID = 0;
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CurrentBlock.ThreadID = 0;
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CurrentBlock.Records = {};
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}
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CurrentState = State::ExtentsFound;
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return Error::success();
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}
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Error BlockIndexer::visit(WallclockRecord &R) {
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CurrentBlock.Records.push_back(&R);
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return Error::success();
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}
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Error BlockIndexer::visit(NewCPUIDRecord &R) {
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CurrentBlock.Records.push_back(&R);
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return Error::success();
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}
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Error BlockIndexer::visit(TSCWrapRecord &R) {
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CurrentBlock.Records.push_back(&R);
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return Error::success();
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}
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Error BlockIndexer::visit(CustomEventRecord &R) {
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CurrentBlock.Records.push_back(&R);
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return Error::success();
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}
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Error BlockIndexer::visit(CallArgRecord &R) {
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CurrentBlock.Records.push_back(&R);
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return Error::success();
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};
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Error BlockIndexer::visit(PIDRecord &R) {
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CurrentBlock.ProcessID = R.pid();
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CurrentBlock.Records.push_back(&R);
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return Error::success();
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}
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Error BlockIndexer::visit(NewBufferRecord &R) {
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CurrentState = State::ThreadIDFound;
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CurrentBlock.ThreadID = R.tid();
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CurrentBlock.Records.push_back(&R);
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return Error::success();
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}
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Error BlockIndexer::visit(EndBufferRecord &R) {
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CurrentState = State::SeekExtents;
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CurrentBlock.Records.push_back(&R);
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return Error::success();
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}
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Error BlockIndexer::visit(FunctionRecord &R) {
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CurrentBlock.Records.push_back(&R);
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return Error::success();
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}
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Error BlockIndexer::flush() {
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CurrentState = State::SeekExtents;
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Index::iterator It;
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std::tie(It, std::ignore) =
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Indices.insert({{CurrentBlock.ProcessID, CurrentBlock.ThreadID}, {}});
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It->second.push_back({CurrentBlock.ProcessID, CurrentBlock.ThreadID,
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std::move(CurrentBlock.Records)});
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CurrentBlock.ProcessID = 0;
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CurrentBlock.ThreadID = 0;
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CurrentBlock.Records = {};
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return Error::success();
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}
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} // namespace xray
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} // namespace llvm
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