src/hotspot/os/linux/cgroupSubsystem_linux.hpp

@  rev 56576 : 8230305: Cgroups v2: Container awareness
|  Summary: Implement Cgroups v2 container awareness in hotspot
|  Reviewed-by: bobv
o  rev 56575 : 8230848: OSContainer: Refactor container detection code
|  Summary: Move cgroups v1 implementation details out of osContainer_linux.cpp
~  Reviewed-by: bobv

@@ -179,10 +179,13 @@
     return (return_type) OSCONTAINER_ERROR;                               \
                                                                           \
   log_trace(os, container)(logstring, variable);                          \
 }
 
+// Four controllers: cpu, cpuset, cpuacct, memory
+#define CG_INFO_LENGTH 4
+
 class CgroupSubsystem: CHeapObj<mtInternal> {
   friend class CgroupSubsystemFactory;
   public:
     int active_processor_count(int physical_proc_count);
 

@@ -202,6 +205,20 @@
 class CgroupSubsystemFactory: AllStatic {
   public:
     static CgroupSubsystem* create();
 };
 
+// Class representing info in /proc/self/cgroup.
+// See man 7 cgroups
+class CgroupInfo : public StackObj {
+  friend class CgroupSubsystemFactory;
+
+  private:
+  char* _name;
+  int _hierarchy_id;
+  bool _enabled;
+  char* _cgroup_path;
+
+};
+
+
 #endif // CGROUP_SUBSYSTEM_LINUX_HPP