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/*
* Copyright (C) 2025 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#pragma once
#include "shared/source/command_stream/host_function.h"
#include "shared/source/helpers/non_copyable_or_moveable.h"
#include <deque>
#include <functional>
#include <memory>
#include <mutex>
#include <semaphore>
#include <stop_token>
#include <thread>
namespace NEO {
class GraphicsAllocation;
struct HostFunction;
class HostFunctionStreamer;
class HostFunctionThreadPool : public NonCopyableAndNonMovableClass {
public:
explicit HostFunctionThreadPool(int32_t threadsInThreadPoolLimit);
~HostFunctionThreadPool();
void registerHostFunctionToExecute(HostFunctionStreamer *streamer, HostFunction &&hostFunction);
void registerThread() noexcept;
void shutdown() noexcept;
private:
void executeHostFunction() noexcept;
void workerLoop(std::stop_token st) noexcept;
std::mutex hostFunctionsMutex;
std::deque<std::jthread> threads;
std::deque<std::pair<HostFunctionStreamer *, HostFunction>> hostFunctions;
std::counting_semaphore<> semaphore{0};
uint32_t threadsLimit = 0;
bool unlimitedThreads = false;
};
static_assert(NonCopyableAndNonMovable<HostFunctionThreadPool>);
} // namespace NEO
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