test/kernel/sys_vumap/vumaprelay.c

   1 /* Test for sys_vumap() - by D.C. van Moolenbroek */
   2 #include <minix/drivers.h>
   3 #include <assert.h>
   4
   5 #include "com.h"
   6
   7 static int do_request(message *m)
   8 {
   9         struct vumap_vir vvec[MAPVEC_NR + 3];
  10         struct vumap_phys pvec[MAPVEC_NR + 3];
  11         int r, r2, access, vcount, pcount;
  12         size_t offset;
  13
  14         assert(m->m_type == VTR_RELAY);
  15
  16         vcount = m->VTR_VCOUNT;
  17         pcount = m->VTR_PCOUNT;
  18         offset = m->VTR_OFFSET;
  19         access = m->VTR_ACCESS;
  20
  21         r2 = sys_safecopyfrom(m->m_source, m->VTR_VGRANT, 0, (vir_bytes) vvec,
  22                 sizeof(vvec[0]) * vcount);
  23         assert(r2 == OK);
  24
  25         r = sys_vumap(m->m_source, vvec, vcount, offset, access, pvec,
  26                 &pcount);
  27
  28         if (pcount >= 1 && pcount <= MAPVEC_NR + 3) {
  29                 r2 = sys_safecopyto(m->m_source, m->VTR_PGRANT, 0,
  30                         (vir_bytes) pvec, sizeof(pvec[0]) * pcount);
  31                 assert(r2 == OK);
  32         }
  33
  34         m->VTR_PCOUNT = pcount;
  35
  36         return r;
  37 }
  38
  39 static int sef_cb_init_fresh(int UNUSED(type), sef_init_info_t *UNUSED(info))
  40 {
  41         return OK;
  42 }
  43
  44 static void sef_cb_signal_handler(int sig)
  45 {
  46         if (sig == SIGTERM)
  47                 exit(0);
  48 }
  49
  50 static void sef_local_startup(void)
  51 {
  52         sef_setcb_init_fresh(sef_cb_init_fresh);
  53         sef_setcb_signal_handler(sef_cb_signal_handler);
  54
  55         sef_startup();
  56 }
  57
  58 int main(int argc, char **argv)
  59 {
  60         message m;
  61         int r;
  62
  63         env_setargs(argc, argv);
  64
  65         sef_local_startup();
  66
  67         for (;;) {
  68                 if ((r = sef_receive(ANY, &m)) != OK)
  69                         panic("sef_receive failed (%d)\n", r);
  70
  71                 m.m_type = do_request(&m);
  72
  73                 send(m.m_source, &m);
  74         }
  75
  76         return 0;
  77 }