numapolicies.cpp

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/**
 * @file
 * @ingroup numapp
 * @brief Definition of numapp::NumaPolicies
 * @copyright
 *   SPDX-FileCopyrightText: 2020-2023 European Southern Observatory (ESO)
 *
 *   SPDX-License-Identifier: LGPL-3.0-only
 */
#include <numapp/numapolicies.hpp>
 
#include <ostream>
 
namespace numapp {
namespace thisThread {
std::error_code Apply(NumaPolicies const& policies) noexcept {
    if (auto pol = policies.GetMemPolicy(); pol) {
        if (auto ec = thisThread::Apply(*pol); ec) {
            return ec;
        }
    }
 
    if (auto pol = policies.GetCpuAffinity(); pol) {
        if (auto ec = thisThread::Apply(*pol); ec) {
            return ec;
        }
    }
 
    if (auto pol = policies.GetScheduler(); pol) {
        if (auto ec = thisThread::Apply(*pol); ec) {
            return ec;
        }
    }
    return {};
}
} // namespace thisThread
 
std::ostream& operator<<(std::ostream& os, NumaPolicies const& policies) {
    auto mempolicy = policies.GetMemPolicy();
    auto affinity = policies.GetCpuAffinity();
    auto scheduler = policies.GetScheduler();
 
    if (mempolicy) {
        os << *mempolicy;
    } else {
        os << "MemPolicy: n/a";
    }
    os << ", ";
    if (affinity) {
        os << *affinity;
    } else {
        os << "CpuAffinity: n/a";
    }
    os << ", ";
    if (scheduler) {
        os << *scheduler;
    } else {
        os << "Scheduler: n/a";
    }
 
    return os;
}
 
}  // namespace numapp