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50 lines
2.1 KiB
C++
50 lines
2.1 KiB
C++
/*
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* Copyright (c) 2024, Red Hat, Inc.
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* Copyright (c) 2026, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#ifndef CGROUP_UTIL_LINUX_HPP
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#define CGROUP_UTIL_LINUX_HPP
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#include "cgroupSubsystem_linux.hpp"
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#include "utilities/globalDefinitions.hpp"
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class CgroupUtil: AllStatic {
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public:
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static bool processor_count(CgroupCpuController* cpu, int upper_bound, double& value);
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// Given a memory controller, adjust its path to a point in the hierarchy
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// that represents the closest memory limit.
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static void adjust_controller(CgroupMemoryController* m);
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// Given a cpu controller, adjust its path to a point in the hierarchy
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// that represents the closest cpu limit.
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static void adjust_controller(CgroupCpuController* c);
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private:
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static physical_memory_size_type get_updated_mem_limit(CgroupMemoryController* m,
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physical_memory_size_type lowest,
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physical_memory_size_type upper_bound);
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static double get_updated_cpu_limit(CgroupCpuController* c, int lowest, int upper_bound);
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};
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#endif // CGROUP_UTIL_LINUX_HPP
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