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