test/safecopy/requestor.c

   1 #include "inc.h"
   2
   3 char buf_buf[BUF_SIZE + CLICK_SIZE];
   4
   5 endpoint_t ep_granter;
   6 int gid;
   7 char *buf;
   8
   9 /*===========================================================================*
  10  *                                  test                                     *
  11  *===========================================================================*/
  12 int test(size_t size)
  13 {
  14         u32_t low1, high1;
  15         u32_t low2, high2;
  16         int r;
  17
  18         /* Timing. */
  19         read_tsc(&high1, &low1);
  20         r = sys_safecopyfrom(ep_granter, gid, 0, (long)buf, size);
  21         read_tsc(&high2, &low2);
  22         if(r != OK) {
  23                 printf("REQUESTOR: error in safecopy: %d\n", r);
  24                 return r;
  25         }
  26         printf("REQUESTOR: SAFECOPY 0x%-8x - %d\n", size, low2 -  low1);
  27
  28         /* Test. */
  29         if(buf[0] != BUF_START) {
  30                 printf("REQUESTOR: error in safecopy!\n");
  31                 printf("        size, value: %d, %d\n", size, buf[0]);
  32                 return r;
  33         }
  34
  35         return OK;
  36 }
  37
  38 /* SEF functions and variables. */
  39 static void sef_local_startup(void);
  40
  41 /*===========================================================================*
  42  *                                  main                                     *
  43  *===========================================================================*/
  44 int main(int argc, char **argv)
  45 {
  46         endpoint_t ep_self;
  47         int fid_send, fid_get;
  48         int i;
  49
  50         /* SEF local startup. */
  51         env_setargs(argc, argv);
  52         sef_local_startup();
  53
  54         /* Prepare work. */
  55         buf = (char*) CLICK_CEIL(buf_buf);
  56         fid_get = open(FIFO_GRANTOR, O_RDONLY);
  57         fid_send = open(FIFO_REQUESTOR, O_WRONLY);
  58         if(fid_get < 0 || fid_send < 0) {
  59                 printf("REQUESTOR: can't open fifo files.\n");
  60                 return 1;
  61         }
  62
  63         /* Sending the endpoint to the granter, in order to let him
  64          * create the grant.
  65          */
  66         ep_self = getprocnr();
  67         write(fid_send, &ep_self, sizeof(ep_self));
  68         dprint("REQUESTOR: sending my endpoint: %d\n", ep_self);
  69
  70         /* Getting the granter's endpoint and gid. */
  71         read(fid_get, &ep_granter, sizeof(ep_granter));
  72         read(fid_get, &gid, sizeof(gid));
  73         dprint("REQUESTOR: getting granter's endpoint %d and gid %d\n",
  74                 ep_granter, gid);
  75
  76         /* Test SAFECOPY. */
  77         for(i = 0; i <= TEST_PAGE_SHIFT; i++) {
  78                 if(test(1 << i) != OK)
  79                         break;
  80         }
  81
  82         /* Notify grantor we are done. */
  83         FIFO_NOTIFY(fid_send);
  84
  85         return 0;
  86 }
  87
  88 /*===========================================================================*
  89  *                             sef_local_startup                             *
  90  *===========================================================================*/
  91 static void sef_local_startup()
  92 {
  93   /* Let SEF perform startup. */
  94   sef_startup();
  95 }
  96