child-qsort-mm.c

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/** Mmaps a 128 kB file "sorts" the bytes in it, using quick sort,
   a multi-pass divide and conquer algorithm.  */
 
#include <debug.h>
#include <syscall.h>
#include "tests/lib.h"
#include "tests/main.h"
#include "tests/vm/qsort.h"
 
const char *test_name = "child-qsort-mm";
 
int
main (int argc UNUSED, char *argv[]) 
{
  int handle;
  unsigned char *p = (unsigned char *) 0x10000000;
 
  quiet = true;
 
  CHECK ((handle = open (argv[1])) > 1, "open \"%s\"", argv[1]);
  CHECK (mmap (handle, p) != MAP_FAILED, "mmap \"%s\"", argv[1]);
  qsort_bytes (p, 1024 * 128);
  
  return 80;
}