Initial commit

1 files changed, 47 insertions, 0 deletions

diff --git a/src/examples/pfs_writer.c b/src/examples/pfs_writer.c
new file mode 100644
index 0000000..0ebd772
--- /dev/null
+++ b/src/examples/pfs_writer.c
@@ -0,0 +1,47 @@
+/* Write on the disk.
+ * Each time the buffer is filled with same character.
+ * Different character every time!
+ */
+
+#include <syscall.h>
+#include <stdio.h>
+#include <string.h>
+#include "pfs.h"
+
+char buffer[BIG];
+
+int main(int argc, char* argv[])
+{
+  int i,j;
+  char c;
+  int id;
+  int write_count;
+  char start;
+  char end;
+
+  if (argc != 3 || strlen(argv[1]) != 1 || strlen(argv[2]) != 1)
+    exit(1);
+  
+  start = argv[1][0];
+  end   = argv[2][0];
+  
+  for (i = 0; i < TIMES / (end - start + 1) + 1; ++i)
+  {
+    for (c = start; c <= end; ++c)
+    {
+      for (j = 0; j < BIG; j++)
+        buffer[j] = c;
+      
+      id = open("file.1");
+      write_count = write(id, buffer, BIG);
+      
+      if ( write_count != BIG )
+      {
+        printf("TEST ERROR: write() wrote only %d bytes out of %d bytes\n",
+               write_count, BIG);
+      }
+      close(id);
+    }
+  }
+  exit(0);
+}