minix/lib/libsys/vm_info.c

   1
   2 #include "syslib.h"
   3
   4 #include <string.h>
   5 #include <minix/vm.h>
   6
   7 /*===========================================================================*
   8  *                                vm_info_stats                              *
   9  *===========================================================================*/
  10 int vm_info_stats(struct vm_stats_info *vsi)
  11 {
  12     message m;
  13
  14     memset(&m, 0, sizeof(m));
  15     m.m_lsys_vm_info.what = VMIW_STATS;
  16     m.m_lsys_vm_info.ptr = vsi;
  17
  18     return _taskcall(VM_PROC_NR, VM_INFO, &m);
  19 }
  20
  21 /*===========================================================================*
  22  *                                vm_info_usage                              *
  23  *===========================================================================*/
  24 int vm_info_usage(endpoint_t who, struct vm_usage_info *vui)
  25 {
  26     message m;
  27
  28     memset(&m, 0, sizeof(m));
  29     m.m_lsys_vm_info.what = VMIW_USAGE;
  30     m.m_lsys_vm_info.ep = who;
  31     m.m_lsys_vm_info.ptr = vui;
  32
  33     return _taskcall(VM_PROC_NR, VM_INFO, &m);
  34 }
  35
  36 /*===========================================================================*
  37  *                                vm_info_region                             *
  38  *===========================================================================*/
  39 int vm_info_region(endpoint_t who, struct vm_region_info *vri,
  40         int count, vir_bytes *next)
  41 {
  42     message m;
  43     int result;
  44
  45     memset(&m, 0, sizeof(m));
  46     m.m_lsys_vm_info.what = VMIW_REGION;
  47     m.m_lsys_vm_info.ep = who;
  48     m.m_lsys_vm_info.count = count;
  49     m.m_lsys_vm_info.ptr = vri;
  50     m.m_lsys_vm_info.next = *next;
  51
  52     if ((result = _taskcall(VM_PROC_NR, VM_INFO, &m)) != OK)
  53         return result;
  54
  55     *next = m.m_lsys_vm_info.next;
  56     return m.m_lsys_vm_info.count;
  57 }
  58