68 lines
2.2 KiB
C++
68 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_XRAY_BLOCKINDEXER_H
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#define LLVM_XRAY_BLOCKINDEXER_H
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#include "llvm/ADT/DenseMap.h"
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#include "llvm/Support/Compiler.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::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 LLVM_ABI 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) : 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 llvm::xray
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#endif // LLVM_XRAY_BLOCKINDEXER_H
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