2704 // scenario, I found through experiment it only uses large page if the entire
2705 // memory region is reserved and committed in a single VirtualAlloc() call.
2706 // This makes Windows large page support more or less like Solaris ISM, in
2707 // that the entire heap must be committed upfront. This probably will change
2708 // in the future, if so the code below needs to be revisited.
2709 
2710 #ifndef MEM_LARGE_PAGES
2711   #define MEM_LARGE_PAGES 0x20000000
2712 #endif
2713 
2714 static HANDLE    _hProcess;
2715 static HANDLE    _hToken;
2716 
2717 // Container for NUMA node list info
2718 class NUMANodeListHolder {
2719  private:
2720   int *_numa_used_node_list;  // allocated below
2721   int _numa_used_node_count;
2722 
2723   void free_node_list() {
2724     if (_numa_used_node_list != NULL) {
2725       FREE_C_HEAP_ARRAY(int, _numa_used_node_list);
2726     }
2727   }
2728 
2729  public:
2730   NUMANodeListHolder() {
2731     _numa_used_node_count = 0;
2732     _numa_used_node_list = NULL;
2733     // do rest of initialization in build routine (after function pointers are set up)
2734   }
2735 
2736   ~NUMANodeListHolder() {
2737     free_node_list();
2738   }
2739 
2740   bool build() {
2741     DWORD_PTR proc_aff_mask;
2742     DWORD_PTR sys_aff_mask;
2743     if (!GetProcessAffinityMask(GetCurrentProcess(), &proc_aff_mask, &sys_aff_mask)) return false;
2744     ULONG highest_node_number;
2745     if (!GetNumaHighestNodeNumber(&highest_node_number)) return false;
2746     free_node_list();

2704 // scenario, I found through experiment it only uses large page if the entire
2705 // memory region is reserved and committed in a single VirtualAlloc() call.
2706 // This makes Windows large page support more or less like Solaris ISM, in
2707 // that the entire heap must be committed upfront. This probably will change
2708 // in the future, if so the code below needs to be revisited.
2709 
2710 #ifndef MEM_LARGE_PAGES
2711   #define MEM_LARGE_PAGES 0x20000000
2712 #endif
2713 
2714 static HANDLE    _hProcess;
2715 static HANDLE    _hToken;
2716 
2717 // Container for NUMA node list info
2718 class NUMANodeListHolder {
2719  private:
2720   int *_numa_used_node_list;  // allocated below
2721   int _numa_used_node_count;
2722 
2723   void free_node_list() {
2724     FREE_C_HEAP_ARRAY(int, _numa_used_node_list);


2725   }
2726 
2727  public:
2728   NUMANodeListHolder() {
2729     _numa_used_node_count = 0;
2730     _numa_used_node_list = NULL;
2731     // do rest of initialization in build routine (after function pointers are set up)
2732   }
2733 
2734   ~NUMANodeListHolder() {
2735     free_node_list();
2736   }
2737 
2738   bool build() {
2739     DWORD_PTR proc_aff_mask;
2740     DWORD_PTR sys_aff_mask;
2741     if (!GetProcessAffinityMask(GetCurrentProcess(), &proc_aff_mask, &sys_aff_mask)) return false;
2742     ULONG highest_node_number;
2743     if (!GetNumaHighestNodeNumber(&highest_node_number)) return false;
2744     free_node_list();