1 //===- FDRTraceExpander.h - XRay FDR Mode Log Expander --------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // We define an FDR record visitor which can re-constitute XRayRecord instances
11 // from a sequence of FDR mode records in arrival order into a collection.
13 //===----------------------------------------------------------------------===//
14 #ifndef INCLUDE_LLVM_XRAY_FDRTRACEEXPANDER_H_
15 #define INCLUDE_LLVM_XRAY_FDRTRACEEXPANDER_H_
17 #include "llvm/ADT/STLExtras.h"
18 #include "llvm/XRay/FDRRecords.h"
19 #include "llvm/XRay/XRayRecord.h"
24 class TraceExpander : public RecordVisitor {
25 // Type-erased callback for handling individual XRayRecord instances.
26 function_ref<void(const XRayRecord &)> C;
30 XRayRecord CurrentRecord{0, 0, RecordTypes::ENTER, 0, 0, 0, 0, {}, {}};
32 uint16_t LogVersion = 0;
33 bool BuildingRecord = false;
34 bool IgnoringRecords = false;
36 void resetCurrentRecord();
39 explicit TraceExpander(function_ref<void(const XRayRecord &)> F, uint16_t L)
40 : RecordVisitor(), C(std::move(F)), LogVersion(L) {}
42 Error visit(BufferExtents &) override;
43 Error visit(WallclockRecord &) override;
44 Error visit(NewCPUIDRecord &) override;
45 Error visit(TSCWrapRecord &) override;
46 Error visit(CustomEventRecord &) override;
47 Error visit(CallArgRecord &) override;
48 Error visit(PIDRecord &) override;
49 Error visit(NewBufferRecord &) override;
50 Error visit(EndBufferRecord &) override;
51 Error visit(FunctionRecord &) override;
52 Error visit(CustomEventRecordV5 &) override;
53 Error visit(TypedEventRecord &) override;
55 // Must be called after all the records have been processed, to handle the
56 // most recent record generated.
63 #endif // INCLUDE_LLVM_XRAY_FDRTRACEEXPANDER_H_