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45 lines
1.3 KiB
C++
45 lines
1.3 KiB
C++
//===-- llvm/Support/Signposts.h - Interval debug annotations ---*- C++ -*-===//
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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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/// \file Some OS's provide profilers that allow applications to provide custom
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/// annotations to the profiler. For example, on Xcode 10 and later 'signposts'
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/// can be emitted by the application and these will be rendered to the Points
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/// of Interest track on the instruments timeline.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_SUPPORT_SIGNPOSTS_H
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#define LLVM_SUPPORT_SIGNPOSTS_H
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#include "llvm/ADT/StringRef.h"
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namespace llvm {
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class SignpostEmitterImpl;
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/// Manages the emission of signposts into the recording method supported by
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/// the OS.
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class SignpostEmitter {
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SignpostEmitterImpl *Impl;
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public:
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SignpostEmitter();
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~SignpostEmitter();
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bool isEnabled() const;
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/// Begin a signposted interval for a given object.
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void startInterval(const void *O, StringRef Name);
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/// End a signposted interval for a given object.
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void endInterval(const void *O, StringRef Name);
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};
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} // end namespace llvm
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#endif // LLVM_SUPPORT_SIGNPOSTS_H
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