20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #ifndef OS_BSD_OS_BSD_HPP
  26 #define OS_BSD_OS_BSD_HPP
  27 
  28 // Bsd_OS defines the interface to Bsd operating systems
  29 
  30 // Information about the protection of the page at address '0' on this os.
  31 static bool zero_page_read_protected() { return true; }
  32 
  33 class Bsd {
  34   friend class os;
  35 
  36   // For signal-chaining
  37   static bool libjsig_is_loaded;        // libjsig that interposes sigaction(),
  38                                         // __sigaction(), signal() is loaded
  39   static struct sigaction *(*get_signal_action)(int);
  40   static struct sigaction *get_preinstalled_handler(int);
  41   static void save_preinstalled_handler(int, struct sigaction&);
  42 
  43   static void check_signal_handler(int sig);
  44 
  45 #ifdef __APPLE__
  46   // mach_absolute_time
  47   static mach_timebase_info_data_t _timebase_info;
  48   static volatile uint64_t         _max_abstime;
  49 #else
  50   static int (*_clock_gettime)(clockid_t, struct timespec *);
  51 #endif
  52 
  53   static GrowableArray<int>* _cpu_to_node;
  54 
  55  protected:
  56 
  57   static julong _physical_memory;
  58   static pthread_t _main_thread;
  59   static int _page_size;
  60 
  61   static julong available_memory();

  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #ifndef OS_BSD_OS_BSD_HPP
  26 #define OS_BSD_OS_BSD_HPP
  27 
  28 // Bsd_OS defines the interface to Bsd operating systems
  29 
  30 // Information about the protection of the page at address '0' on this os.
  31 static bool zero_page_read_protected() { return true; }
  32 
  33 class Bsd {
  34   friend class os;
  35 
  36   // For signal-chaining
  37   static bool libjsig_is_loaded;        // libjsig that interposes sigaction(),
  38                                         // __sigaction(), signal() is loaded
  39   static struct sigaction *(*get_signal_action)(int);


  40 
  41   static void check_signal_handler(int sig);
  42 
  43 #ifdef __APPLE__
  44   // mach_absolute_time
  45   static mach_timebase_info_data_t _timebase_info;
  46   static volatile uint64_t         _max_abstime;
  47 #else
  48   static int (*_clock_gettime)(clockid_t, struct timespec *);
  49 #endif
  50 
  51   static GrowableArray<int>* _cpu_to_node;
  52 
  53  protected:
  54 
  55   static julong _physical_memory;
  56   static pthread_t _main_thread;
  57   static int _page_size;
  58 
  59   static julong available_memory();