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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
69 lines
2.2 KiB
C++
69 lines
2.2 KiB
C++
//===- BlockIndexer.h - FDR Block Indexing Visitor ------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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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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#ifndef LLVM_LIB_XRAY_BLOCKINDEXER_H_
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#define LLVM_LIB_XRAY_BLOCKINDEXER_H_
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#include "llvm/ADT/DenseMap.h"
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#include "llvm/XRay/FDRRecords.h"
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#include <cstdint>
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#include <vector>
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namespace llvm {
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namespace xray {
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// The BlockIndexer will gather all related records associated with a
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// process+thread and group them by 'Block'.
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class BlockIndexer : public RecordVisitor {
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public:
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struct Block {
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uint64_t ProcessID;
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int32_t ThreadID;
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WallclockRecord *WallclockTime;
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std::vector<Record *> Records;
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};
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// This maps the process + thread combination to a sequence of blocks.
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using Index = DenseMap<std::pair<uint64_t, int32_t>, std::vector<Block>>;
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private:
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Index &Indices;
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Block CurrentBlock{0, 0, nullptr, {}};
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public:
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explicit BlockIndexer(Index &I) : RecordVisitor(), Indices(I) {}
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Error visit(BufferExtents &) override;
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Error visit(WallclockRecord &) override;
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Error visit(NewCPUIDRecord &) override;
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Error visit(TSCWrapRecord &) override;
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Error visit(CustomEventRecord &) override;
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Error visit(CallArgRecord &) override;
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Error visit(PIDRecord &) override;
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Error visit(NewBufferRecord &) override;
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Error visit(EndBufferRecord &) override;
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Error visit(FunctionRecord &) override;
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Error visit(CustomEventRecordV5 &) override;
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Error visit(TypedEventRecord &) override;
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/// The flush() function will clear out the current state of the visitor, to
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/// allow for explicitly flushing a block's records to the currently
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/// recognized thread and process combination.
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Error flush();
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};
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} // namespace xray
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} // namespace llvm
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#endif // LLVM_LIB_XRAY_BLOCKINDEXER_H_
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