minix/tests/testcache.h

   1
   2 /* Common definitions and declarations for the testcache code
   3  * and the testcache clients.
   4  */
   5
   6 #include <sys/types.h>
   7 #include <machine/param.h>
   8 #include <machine/vmparam.h>
   9
  10 #define MAXBLOCKS 1500000
  11
  12 #define MAXBLOCKSIZE (4*PAGE_SIZE)
  13
  14 int dowriteblock(int b, int blocksize, u32_t seed, char *block);
  15 int readblock(int b, int blocksize, u32_t seed, char *block);
  16 void testend(void);
  17 int dotest(int blocksize, int nblocks, int iterations);
  18 void cachequiet(int quiet);
  19 void get_fd_offset(int b, int blocksize, u64_t *file_offset, int *fd);
  20 void makefiles(int n);
  21
  22 #define OK_BLOCK_GONE   -999
  23
  24 /* for file-oriented tests:
  25  *
  26  * we want to flexibly split tests over multiple files
  27  * - for big working sets we might run over the 2GB MFS file limit
  28  * - we might want to test the FS being able to handle lots of
  29  *   files / unusual metadata situations
  30  */
  31 #define MBPERFILE 2000
  32 #define MB (1024*1024)
  33 #define MAXFILES ((u64_t) MAXBLOCKS * MAXBLOCKSIZE / MB / MBPERFILE + 1)
  34
  35 extern int fds[MAXFILES], bigflag;
  36