Laurent Morichetti
c0cbcdff1d
The CallbackTable utility is shared by multiple APIs, so move it out of the roctracer directory. Change-Id: Ie2378dca8a4f90bd334dbe2d39ced37c9e790ed0
71 baris
2.7 KiB
C++
71 baris
2.7 KiB
C++
/* Copyright (c) 2018-2022 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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#ifndef UTIL_CALLBACK_TABLE_H_
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#define UTIL_CALLBACK_TABLE_H_
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#include "ext/prof_protocol.h"
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#include <array>
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#include <atomic>
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#include <cassert>
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#include <mutex>
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#include <utility>
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namespace roctracer::util {
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// Generic callbacks table
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template <activity_domain_t Domain, uint32_t N> class CallbackTable {
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public:
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CallbackTable()
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// Zero initialize the callbacks array as the function pointer is used to determine if the
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// callback is enabled.
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: callbacks_() {}
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void Set(uint32_t callback_id, activity_rtapi_callback_t callback_function, void* user_arg) {
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assert(callback_id < N && "callback_id is out of range");
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std::lock_guard lock(mutex_);
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auto& callback = callbacks_[callback_id];
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callback.first.store(callback_function, std::memory_order_relaxed);
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callback.second = user_arg;
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}
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auto Get(uint32_t callback_id) const {
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assert(callback_id < N && "id is out of range");
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std::lock_guard lock(mutex_);
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auto& callback = callbacks_[callback_id];
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return std::make_pair(callback.first.load(std::memory_order_relaxed), callback.second);
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}
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template <typename... Args> void Invoke(uint32_t callback_id, Args... args) {
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if (callbacks_[callback_id].first.load(std::memory_order_relaxed) == nullptr) return;
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if (auto [callback_function, user_arg] = Get(callback_id); callback_function != nullptr)
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callback_function(Domain, callback_id, std::forward<Args>(args)..., user_arg);
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}
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private:
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std::array<std::pair<std::atomic<activity_rtapi_callback_t>, void*>, N> callbacks_;
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mutable std::mutex mutex_;
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};
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} // namespace roctracer::util
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#endif // UTIL_CALLBACK_TABLE_H_
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