1 /* 2 * Copyright (c) 2019, Red Hat Inc. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #ifndef CGROUP_V2_SUBSYSTEM_LINUX_HPP 26 #define CGROUP_V2_SUBSYSTEM_LINUX_HPP 27 28 #include "cgroupSubsystem_linux.hpp" 29 30 class CgroupV2Controller: public CgroupController { 31 friend class CgroupSubsystemFactory; 32 private: 33 /* the mount path of the cgroup v2 hierarchy */ 34 char *_mount_path; 35 /* The cgroup path for the controller */ 36 char *_cgroup_path; 37 38 /* Constructed full path to the subsystem directory */ 39 char *_path; 40 static char* construct_path(char* mount_path, char *cgroup_path); 41 42 public: 43 CgroupV2Controller(char * mount_path, char *cgroup_path) { 44 _mount_path = mount_path; 45 _cgroup_path = os::strdup(cgroup_path); 46 _path = construct_path(mount_path, cgroup_path); 47 } 48 49 char *subsystem_path() { return _path; } 50 }; 51 52 class CgroupV2Subsystem: CgroupSubsystem { 53 friend class CgroupSubsystemFactory; 54 private: 55 /* One unified controller */ 56 CgroupController* _unified = NULL; 57 58 CgroupV2Subsystem(CgroupController* unified) { 59 _unified = unified; 60 } 61 62 char *mem_limit_val(); 63 char *mem_swp_limit_val(); 64 char *mem_soft_limit_val(); 65 char *cpu_quota_val(); 66 jlong limit_from_str(char* limit_str); 67 68 public: 69 jlong memory_limit_in_bytes(); 70 int cpu_quota(); 71 int cpu_period(); 72 int cpu_shares(); 73 jlong memory_and_swap_limit_in_bytes(); 74 jlong memory_soft_limit_in_bytes(); 75 jlong memory_usage_in_bytes(); 76 jlong memory_max_usage_in_bytes(); 77 char * cpu_cpuset_cpus(); 78 char * cpu_cpuset_memory_nodes(); 79 const char * container_type() { 80 return "cgroupv2"; 81 } 82 }; 83 84 #endif // CGROUP_V2_SUBSYSTEM_LINUX_HPP