lockResourceExample.cpp

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/**
 * @file
 * @copyright
 *   SPDX-FileCopyrightText: 2025-2025 European Southern Observatory (ESO)
 *
 *   SPDX-License-Identifier: LGPL-3.0-only
 */
#include <vector>
 
#include <numapp/memory.hpp>
 
void Example() {
    // Create a pool resource that allocates memory from NUMA node 1 with strict
    // policy, using PageResource.
    auto resource = numapp::PageResource(numapp::MemPolicy::MakeBindNode(1),
                                         numapp::MemPolicyFlag::Strict);
 
    auto locked = numapp::LockResource(numapp::LockFlag::PreFault, &resource);
 
    // Allocate 4 MiB block memory from NUMA node 1, pre-fault it and lock it
    // into memory.
    [[maybe_unused]] auto vector =
        std::pmr::vector<std::uint8_t>(4 * 1024 * 1024, &locked);
}