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File indexing completed on 2026-05-10 08:44:34
0001 //===-- llvm/Support/Signposts.h - Interval debug annotations ---*- C++ -*-===// 0002 // 0003 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 0004 // See https://llvm.org/LICENSE.txt for license information. 0005 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 0006 // 0007 //===----------------------------------------------------------------------===// 0008 // 0009 /// \file Some OS's provide profilers that allow applications to provide custom 0010 /// annotations to the profiler. For example, on Xcode 10 and later 'signposts' 0011 /// can be emitted by the application and these will be rendered to the Points 0012 /// of Interest track on the instruments timeline. 0013 // 0014 //===----------------------------------------------------------------------===// 0015 0016 #ifndef LLVM_SUPPORT_SIGNPOSTS_H 0017 #define LLVM_SUPPORT_SIGNPOSTS_H 0018 0019 #include <memory> 0020 0021 namespace llvm { 0022 class SignpostEmitterImpl; 0023 class StringRef; 0024 0025 /// Manages the emission of signposts into the recording method supported by 0026 /// the OS. 0027 class SignpostEmitter { 0028 std::unique_ptr<SignpostEmitterImpl> Impl; 0029 0030 public: 0031 SignpostEmitter(); 0032 ~SignpostEmitter(); 0033 0034 bool isEnabled() const; 0035 0036 /// Begin a signposted interval for a given object. 0037 void startInterval(const void *O, StringRef Name); 0038 /// End a signposted interval for a given object. 0039 void endInterval(const void *O, StringRef Name); 0040 }; 0041 0042 } // end namespace llvm 0043 0044 #endif // LLVM_SUPPORT_SIGNPOSTS_H
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