Make tests public. Rewrite most tests. Add tests.

[pintos-anon] / grading / vm / mmap-shuffle.c

diff --git a/grading/vm/mmap-shuffle.c b/grading/vm/mmap-shuffle.c
deleted file mode 100644 (file)
index 15a37f4..0000000
--- a/grading/vm/mmap-shuffle.c
+++ /dev/null
@@ -1,98 +0,0 @@
-#include <stdio.h>
-#include <string.h>
-#ifdef PINTOS
-#include <syscall.h>
-#else
-#include "posix-compat.h"
-#endif
-#include "../lib/arc4.h"
-#include "../lib/cksum.h"
-
-/* This is the max file size for an older version of the Pintos
-   file system that had 126 direct blocks each pointing to a
-   single disk sector.  We could raise it now. */
-#define SIZE (126 * 512)
-
-static char *buf = (char *) 0x10000000;
-
-static struct arc4 *
-get_key (void) 
-{
-  static struct arc4 arc4;
-  static bool inited = false;
-  if (!inited) 
-    {
-      arc4_init (&arc4, "quux", 4);
-      inited = true; 
-    }
-  return &arc4;
-}
-
-static unsigned long
-random_ulong (void) 
-{
-  static unsigned long x;
-  arc4_crypt (get_key (), &x, sizeof x);
-  return x;
-}
-
-static void
-shuffle (void) 
-{
-  size_t i;
-
-  for (i = 0; i < SIZE; i++)
-    {
-      size_t j = i + random_ulong () % (SIZE - i);
-      char t = buf[i];
-      buf[i] = buf[j];
-      buf[j] = t;
-    }
-}
-
-int
-main (void) 
-{
-  size_t i;
-  int fd;
-
-  printf ("(mmap-shuffle) begin\n");
-
-  /* Create file, mmap. */
-  if (!create ("buffer", SIZE))
-    {
-      printf ("(mmap-shuffle) create() failed\n");
-      return 1;
-    }
-  
-  fd = open ("buffer");
-  if (fd < 0) 
-    {
-      printf ("(mmap-shuffle) open() failed\n");
-      return 1;
-    }
-
-  if (mmap (fd, buf) == MAP_FAILED)
-    {
-      printf ("(mmap-shuffle) mmap() failed\n");
-      return 1;
-    }
-
-  /* Initialize. */
-  for (i = 0; i < SIZE; i++)
-    buf[i] = i * 257;
-  printf ("(mmap-shuffle) init: cksum=%lu\n", cksum (buf, SIZE));
-    
-  /* Shuffle repeatedly. */
-  for (i = 0; i < 10; i++)
-    {
-      shuffle ();
-      printf ("(mmap-shuffle) shuffle %zu: cksum=%lu\n",
-              i, cksum (buf, SIZE));
-    }
-  
-  /* Done. */
-  printf ("(mmap-shuffle) end\n");
-
-  return 0;
-}