| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef PLATFORM_BASE_LOCATION_H_ |
| #define PLATFORM_BASE_LOCATION_H_ |
| |
| #include <stddef.h> |
| |
| #include <cassert> |
| #include <functional> |
| #include <string> |
| |
| namespace openscreen { |
| |
| // NOTE: lifted from Chromium's base Location implementation, forked to work |
| // with our base library. |
| |
| // Instances of the location class include basic information about a position |
| // in program source, for example the place where an object was constructed. |
| class Location { |
| public: |
| Location(); |
| Location(const Location&); |
| Location(Location&&) noexcept; |
| |
| // Initializes the program counter |
| explicit Location(const void* program_counter); |
| |
| Location& operator=(const Location& other); |
| Location& operator=(Location&& other); |
| |
| // Comparator for hash map insertion. The program counter should uniquely |
| // identify a location. |
| bool operator==(const Location& other) const { |
| return program_counter_ == other.program_counter_; |
| } |
| |
| // The address of the code generating this Location object. Should always be |
| // valid except for default initialized Location objects, which will be |
| // nullptr. |
| const void* program_counter() const { return program_counter_; } |
| |
| // Converts to the most user-readable form possible. This will return |
| // "pc:<hex address>". |
| std::string ToString() const; |
| |
| static Location CreateFromHere(); |
| |
| private: |
| const void* program_counter_ = nullptr; |
| }; |
| |
| const void* GetProgramCounter(); |
| |
| #define CURRENT_LOCATION ::openscreen::Location::CreateFromHere() |
| |
| } // namespace openscreen |
| |
| #endif // PLATFORM_BASE_LOCATION_H_ |