mempolicyExample2.cpp

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/**
 * @file
 * @copyright
 *   SPDX-FileCopyrightText: 2023-2023 European Southern Observatory (ESO)
 *
 *   SPDX-License-Identifier: LGPL-3.0-only
 */
#include <iostream>
#include <numapp/memory.hpp>
#include <numapp/mempolicy.hpp>
 
void BindMemoryRange(int node, void* address, std::size_t size) {
    using numapp::MemPolicy;
    using numapp::operator|;
    using numapp::LockFlag;
    using numapp::MemPolicyFlag;
 
    auto policy = MemPolicy::MakeBindNode(node);
    auto flags = MemPolicyFlag::Move | MemPolicyFlag::Strict;
 
    if (auto ec = numapp::Apply(address, size, policy, flags); ec) {
        std::cerr << "Failed to apply policy: " << ec.message() << std::endl;
        throw std::system_error(ec);
    }
 
    if (auto ec = numapp::MemLock(address, size, LockFlag::PreFault); ec) {
        std::cerr << "Failed to apply policy: " << ec.message() << std::endl;
        throw std::system_error(ec);
    }
}