Ramesh Errabolu
112 regels
3.6 KiB
C++
112 regels
3.6 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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//
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// The University of Illinois/NCSA
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// Open Source License (NCSA)
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//
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// Copyright (c) 2014-2020, Advanced Micro Devices, Inc. All rights reserved.
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//
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// Developed by:
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//
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// AMD Research and AMD HSA Software Development
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//
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// Advanced Micro Devices, Inc.
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//
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// www.amd.com
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to
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// deal with the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// - Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimers.
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// - Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimers in
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// the documentation and/or other materials provided with the distribution.
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// - Neither the names of Advanced Micro Devices, Inc,
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// nor the names of its contributors may be used to endorse or promote
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// products derived from this Software without specific prior written
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// permission.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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// THE CONTRIBUTORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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// OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS WITH THE SOFTWARE.
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//
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////////////////////////////////////////////////////////////////////////////////
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#ifndef HSA_RUNTME_CORE_INC_CHECKED_H_
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#define HSA_RUNTME_CORE_INC_CHECKED_H_
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#include <stdint.h>
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#include <stdlib.h>
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namespace rocr {
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namespace core {
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/// @brief Compares type codes and pointers to check object validity. Used for cast validation.
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template <uint64_t code, bool multiProcess = false> class Check final {
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public:
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typedef Check<code> CheckType;
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Check() { object_ = uintptr_t(this) ^ uintptr_t(code); }
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Check(const Check&) { object_ = uintptr_t(this) ^ uintptr_t(code); }
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Check(Check&&) { object_ = uintptr_t(this) ^ uintptr_t(code); }
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~Check() { object_ = NULL; }
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const Check& operator=(Check&& rhs) { return *this; }
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const Check& operator=(const Check& rhs) { return *this; }
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bool IsValid() const {
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return object_ == (uintptr_t(this) ^ uintptr_t(code));
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}
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uint64_t check_code() const { return code; }
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private:
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uintptr_t object_;
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};
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template <uint64_t code> class Check<code, true> final {
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public:
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typedef Check<code> CheckType;
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Check() { object_ = uintptr_t(code); }
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Check(const Check&) { object_ = uintptr_t(code); }
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Check(Check&&) { object_ = uintptr_t(code); }
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const Check& operator=(Check&& rhs) { return *this; }
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const Check& operator=(const Check& rhs) { return *this; }
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bool IsValid() const { return object_ == uintptr_t(code); }
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uint64_t check_code() const { return code; }
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private:
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uintptr_t object_;
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};
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/// @brief Base class for validating objects.
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template <uint64_t code> class Checked {
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public:
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typedef Checked<code> CheckedType;
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bool IsValid() const { return id.IsValid(); }
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virtual ~Checked() {}
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private:
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Check<code, false> id;
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};
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} // namespace core
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} // namespace rocr
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#endif // header guard
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