1 files changed, 32 insertions, 0 deletions

diff --git a/pintos-progos/tests/vm/child-qsort.c b/pintos-progos/tests/vm/child-qsort.c
new file mode 100644
index 0000000..355f4eb
--- /dev/null
+++ b/pintos-progos/tests/vm/child-qsort.c
@@ -0,0 +1,32 @@
+/* Reads a 128 kB file onto the stack and "sorts" the bytes in
+   it, using quick sort, a multi-pass divide and conquer
+   algorithm.  The sorted data is written back to the same file
+   in-place. */
+
+#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";
+
+int
+main (int argc UNUSED, char *argv[]) 
+{
+  int handle;
+  unsigned char buf[128 * 1024];
+  size_t size;
+
+  quiet = true;
+
+  CHECK ((handle = open (argv[1])) > 1, "open \"%s\"", argv[1]);
+
+  size = read (handle, buf, sizeof buf);
+  qsort_bytes (buf, sizeof buf);
+  seek (handle, 0);
+  write (handle, buf, size);
+  close (handle);
+  
+  return 72;
+}