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 #include <string.h>
  26 #include <math.h>
  27 #include <errno.h>
  28 #include "utilities/globalDefinitions.hpp"
  29 #include "memory/allocation.hpp"
  30 #include "runtime/os.hpp"
  31 #include "logging/log.hpp"
  32 #include "osContainer_linux.hpp"
  33 
  34 /*
  35  * Warning: Some linux distros use 0x7FFFFFFFFFFFF000

  36  * and others use 0x7FFFFFFFFFFFFFFF for unlimited.
  37  */
  38 #define UNLIMITED_MEM CONST64(0x7FFFFFFFFFFFF000)
  39 
  40 #define PER_CPU_SHARES 1024
  41 
  42 bool  OSContainer::_is_initialized   = false;
  43 bool  OSContainer::_is_containerized = false;
  44 
  45 class CgroupSubsystem: CHeapObj<mtInternal> {
  46  friend class OSContainer;
  47 
  48  private:
  49     /* mountinfo contents */
  50     char *_root;
  51     char *_mount_point;
  52 
  53     /* Constructed subsystem directory */
  54     char *_path;
  55 
  56  public:
  57     CgroupSubsystem(char *root, char *mountpoint) {
  58       _root = os::strdup(root);

  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 #include <string.h>
  26 #include <math.h>
  27 #include <errno.h>
  28 #include "utilities/globalDefinitions.hpp"
  29 #include "memory/allocation.hpp"
  30 #include "runtime/os.hpp"
  31 #include "logging/log.hpp"
  32 #include "osContainer_linux.hpp"
  33 
  34 /*
  35  * Warning: Some linux distros use 0x7FFFFFFFFFFFF000,
  36  * some (SLES 12.1 ppc64le) 0x7FFFFFFFFFFF0000,
  37  * and others use 0x7FFFFFFFFFFFFFFF for unlimited.
  38  */
  39 #define UNLIMITED_MEM CONST64(0x7FFFFFFFFFFF0000)
  40 
  41 #define PER_CPU_SHARES 1024
  42 
  43 bool  OSContainer::_is_initialized   = false;
  44 bool  OSContainer::_is_containerized = false;
  45 
  46 class CgroupSubsystem: CHeapObj<mtInternal> {
  47  friend class OSContainer;
  48 
  49  private:
  50     /* mountinfo contents */
  51     char *_root;
  52     char *_mount_point;
  53 
  54     /* Constructed subsystem directory */
  55     char *_path;
  56 
  57  public:
  58     CgroupSubsystem(char *root, char *mountpoint) {
  59       _root = os::strdup(root);