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/*
* Copyright (C) 2025 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#include "shared/source/command_stream/host_function_worker_atomic.h"
#include "shared/source/command_stream/host_function.h"
namespace NEO {
HostFunctionWorkerAtomic::HostFunctionWorkerAtomic(bool skipHostFunctionExecution,
const std::function<void(GraphicsAllocation &)> &downloadAllocationImpl,
GraphicsAllocation *allocation,
HostFunctionData *data)
: IHostFunctionWorker(skipHostFunctionExecution, downloadAllocationImpl, allocation, data) {
}
HostFunctionWorkerAtomic::~HostFunctionWorkerAtomic() = default;
void HostFunctionWorkerAtomic::start() {
std::lock_guard<std::mutex> lg{workerMutex};
if (!worker) {
worker = std::make_unique<std::jthread>([this](std::stop_token st) {
this->workerLoop(std::move(st));
});
}
}
void HostFunctionWorkerAtomic::finish() {
std::lock_guard<std::mutex> lg{workerMutex};
if (worker) {
worker->request_stop();
pending.fetch_add(1u);
pending.notify_one();
worker.reset(nullptr);
}
}
void HostFunctionWorkerAtomic::submit() noexcept {
pending.fetch_add(1, std::memory_order_release);
pending.notify_one();
}
void HostFunctionWorkerAtomic::workerLoop(std::stop_token st) noexcept {
while (true) {
while (pending.load(std::memory_order_acquire) == 0) {
pending.wait(0, std::memory_order_acquire);
}
if (st.stop_requested()) {
return;
}
pending.fetch_sub(1, std::memory_order_acq_rel);
bool sucess = this->runHostFunction(st);
if (!sucess) [[unlikely]] {
return;
}
}
}
} // namespace NEO
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