LLVM 19.0.0git
FDRRecordProducer.h
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1//===- FDRRecordProducer.h - XRay FDR Mode Record Producer ----------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8#ifndef LLVM_XRAY_FDRRECORDPRODUCER_H
9#define LLVM_XRAY_FDRRECORDPRODUCER_H
10
11#include "llvm/Support/Error.h"
14#include <memory>
15
16namespace llvm {
17namespace xray {
18
20public:
21 /// All producer implementations must yield either an Error or a non-nullptr
22 /// unique_ptr<Record>.
24 virtual ~RecordProducer() = default;
25};
26
28 const XRayFileHeader &Header;
30 uint64_t &OffsetPtr;
31 uint32_t CurrentBufferBytes = 0;
32
33 // Helper function which gets the next record by speculatively reading through
34 // the log, finding a buffer extents record.
35 Expected<std::unique_ptr<Record>> findNextBufferExtent();
36
37public:
39 uint64_t &OP)
40 : Header(FH), E(DE), OffsetPtr(OP) {}
41
42 /// This producer encapsulates the logic for loading a File-backed
43 /// RecordProducer hidden behind a DataExtractor.
45};
46
47} // namespace xray
48} // namespace llvm
49
50#endif // LLVM_XRAY_FDRRECORDPRODUCER_H
#define OP(OPC)
Definition: SandboxIR.h:465
Tagged union holding either a T or a Error.
Definition: Error.h:481
FileBasedRecordProducer(const XRayFileHeader &FH, DataExtractor &DE, uint64_t &OP)
Expected< std::unique_ptr< Record > > produce() override
This producer encapsulates the logic for loading a File-backed RecordProducer hidden behind a DataExt...
virtual Expected< std::unique_ptr< Record > > produce()=0
All producer implementations must yield either an Error or a non-nullptr unique_ptr<Record>.
virtual ~RecordProducer()=default
This is an optimization pass for GlobalISel generic memory operations.
Definition: AddressRanges.h:18
XRay traces all have a header providing some top-matter information useful to help tools determine ho...
Definition: XRayRecord.h:27