| /* |
| * Copyright (c) 2020, Red Hat Inc. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| #ifndef CGROUP_V2_SUBSYSTEM_LINUX_HPP |
| #define CGROUP_V2_SUBSYSTEM_LINUX_HPP |
| |
| #include "cgroupSubsystem_linux.hpp" |
| |
| class CgroupV2Controller: public CgroupController { |
| private: |
| /* the mount path of the cgroup v2 hierarchy */ |
| char *_mount_path; |
| /* The cgroup path for the controller */ |
| char *_cgroup_path; |
| |
| /* Constructed full path to the subsystem directory */ |
| char *_path; |
| static char* construct_path(char* mount_path, char *cgroup_path); |
| |
| public: |
| CgroupV2Controller(char * mount_path, char *cgroup_path) { |
| _mount_path = mount_path; |
| _cgroup_path = os::strdup(cgroup_path); |
| _path = construct_path(mount_path, cgroup_path); |
| } |
| |
| char *subsystem_path() { return _path; } |
| }; |
| |
| class CgroupV2Subsystem: public CgroupSubsystem { |
| private: |
| /* One unified controller */ |
| CgroupController* _unified = NULL; |
| /* Caching wrappers for cpu/memory metrics */ |
| CachingCgroupController* _memory = NULL; |
| CachingCgroupController* _cpu = NULL; |
| |
| char *mem_limit_val(); |
| char *mem_swp_limit_val(); |
| char *mem_soft_limit_val(); |
| char *cpu_quota_val(); |
| jlong limit_from_str(char* limit_str); |
| |
| public: |
| CgroupV2Subsystem(CgroupController * unified) { |
| _unified = unified; |
| _memory = new CachingCgroupController(unified); |
| _cpu = new CachingCgroupController(unified); |
| } |
| |
| jlong read_memory_limit_in_bytes(); |
| int cpu_quota(); |
| int cpu_period(); |
| int cpu_shares(); |
| jlong memory_and_swap_limit_in_bytes(); |
| jlong memory_soft_limit_in_bytes(); |
| jlong memory_usage_in_bytes(); |
| jlong memory_max_usage_in_bytes(); |
| char * cpu_cpuset_cpus(); |
| char * cpu_cpuset_memory_nodes(); |
| const char * container_type() { |
| return "cgroupv2"; |
| } |
| CachingCgroupController * memory_controller() { return _memory; } |
| CachingCgroupController * cpu_controller() { return _cpu; } |
| }; |
| |
| #endif // CGROUP_V2_SUBSYSTEM_LINUX_HPP |