1 /*
   2  * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
   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 SHARE_VM_RUNTIME_OSCONTAINER_HPP
  26 #define SHARE_VM_RUNTIME_OSCONTAINER_HPP
  27 
  28 #include "utilities/globalDefinitions.hpp"
  29 #include "utilities/macros.hpp"
  30 #include "memory/allocation.hpp"
  31 
  32 class OSContainer: AllStatic {
  33 
  34  private:
  35   static bool   _is_initialized;
  36   static bool   _is_containerized;
  37 
  38  public:
  39   static void   init();
  40   static bool   is_containerized();
  41   static char * get_container_type();
  42 
  43   static jlong  memory_limit_in_bytes() { 
  44     return pd_memory_limit_in_bytes(); 
  45   }
  46 
  47   static jlong  memory_and_swap_limit_in_bytes() {
  48     return pd_memory_and_swap_limit_in_bytes();
  49   }
  50 
  51   static jlong  memory_soft_limit_in_bytes() {
  52     return pd_memory_soft_limit_in_bytes();
  53   }
  54 
  55   static jlong  memory_usage_in_bytes() { 
  56     return pd_memory_usage_in_bytes(); 
  57   }
  58 
  59   static jlong  memory_max_usage_in_bytes() { 
  60     return pd_memory_max_usage_in_bytes(); 
  61   }
  62 
  63   static int    active_processor_count() {
  64     return pd_active_processor_count();
  65   }
  66 
  67   static char * cpu_cpuset_cpus() {
  68     return pd_cpu_cpuset_cpus();
  69   }
  70 
  71   static char * cpu_cpuset_memory_nodes() {
  72     return pd_cpu_cpuset_memory_nodes();
  73   }
  74 
  75   static int    cpu_quota() {
  76     return pd_cpu_quota();
  77   }
  78 
  79   static int    cpu_period() {
  80     return pd_cpu_period();
  81   }
  82 
  83   static int    cpu_shares() {
  84     return pd_cpu_shares();
  85   }
  86 
  87   // Platform specific functions
  88 
  89   static bool   pd_init();
  90   static char * pd_get_container_type();
  91 
  92   static jlong  pd_memory_limit_in_bytes();
  93   static jlong  pd_memory_and_swap_limit_in_bytes();
  94   static jlong  pd_memory_soft_limit_in_bytes();
  95   static jlong  pd_memory_usage_in_bytes();
  96   static jlong  pd_memory_max_usage_in_bytes();
  97 
  98   static int    pd_active_processor_count();
  99 
 100   static char * pd_cpu_cpuset_cpus();
 101   static char * pd_cpu_cpuset_memory_nodes();
 102 
 103   static int    pd_cpu_quota();
 104   static int    pd_cpu_period();
 105 
 106   static int    pd_cpu_shares();
 107 
 108 #include OS_HEADER(osContainer)
 109 
 110 };
 111 
 112 #endif // SHARE_VM_RUNTIME_OSCONTAINER_HPP