test/safecopy/grantor.c

   1 #include "inc.h"
   2
   3 char buf_buf[BUF_SIZE + CLICK_SIZE];
   4
   5 /* SEF functions and variables. */
   6 FORWARD _PROTOTYPE( void sef_local_startup, (void) );
   7
   8 /*===========================================================================*
   9  *                                  main                                     *
  10  *===========================================================================*/
  11 int main(int argc, char **argv)
  12 {
  13         endpoint_t ep_self, ep_requestor;
  14         int fid_send, fid_get;
  15         cp_grant_id_t gid;
  16         char *buf;
  17         int i;
  18
  19         /* SEF local startup. */
  20         env_setargs(argc, argv);
  21         sef_local_startup();
  22
  23         /* Prepare work. */
  24         buf = (char*) CLICK_CEIL(buf_buf);
  25         fid_send = open(FIFO_GRANTOR, O_WRONLY);
  26         fid_get = open(FIFO_REQUESTOR, O_RDONLY);
  27         if(fid_get < 0 || fid_send < 0) {
  28                 printf("GRANTOR: can't open fifo files.\n");
  29                 return 1;
  30         }
  31         buf[0] = BUF_START;
  32
  33         /* Get the requestor's endpoint. */
  34         read(fid_get, &ep_requestor, sizeof(ep_requestor));
  35         dprint("GRANTOR: getting requestor's endpoint: %d\n", ep_requestor);
  36
  37         /* Grant. */
  38         gid = cpf_grant_direct(ep_requestor, (long)buf, BUF_SIZE,
  39                 CPF_READ | CPF_WRITE);
  40         ep_self = getprocnr();
  41         dprint("GRANTOR: sending my endpoint %d and gid %d\n", ep_self, gid);
  42         write(fid_send, &ep_self, sizeof(ep_self));
  43         write(fid_send, &gid, sizeof(gid));
  44
  45         /* Wait till requestor is done. */
  46         FIFO_WAIT(fid_get);
  47
  48         return 0;
  49 }
  50
  51 /*===========================================================================*
  52  *                             sef_local_startup                             *
  53  *===========================================================================*/
  54 PRIVATE void sef_local_startup()
  55 {
  56   /* Let SEF perform startup. */
  57   sef_startup();
  58 }
  59