Danylo Lytovchenko
65 baris
2.0 KiB
C++
65 baris
2.0 KiB
C++
/* Copyright (c) 2021 - 2021 Advanced Micro Devices, Inc.
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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 deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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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 THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE. */
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#pragma once
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#include "top.hpp"
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namespace amd {
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class Device;
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};
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namespace amd::device {
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// Light abstraction over HSA/PAL signals
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class Signal : public amd::HeapObject {
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public:
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enum class Condition : uint32_t {
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Eq = 0,
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Ne = 1,
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Lt = 2,
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Gte = 3,
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};
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enum class WaitState : uint32_t {
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Blocked = 0,
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Active = 1,
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};
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protected:
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WaitState ws_;
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public:
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virtual ~Signal() {}
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virtual bool Init(const amd::Device& dev, uint64_t init, WaitState ws) { return false; }
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// Blocks the current thread untill the condition c is satisfied
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// or amount of time specified by timeout passes
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virtual uint64_t Wait(uint64_t value, Condition c, uint64_t timeout) { return -1; }
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// Atomically sets the current value of the signal
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virtual void Reset(uint64_t value) {}
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// Return the handle to the underlying amd_signal_t object
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virtual void* getHandle() { return nullptr; }
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};
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}; // namespace amd::device
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