X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Ffilesys%2Ffilehdr.h;h=60bca9619d452a26f08800cc089733b89e738491;hb=b6b1e6db07a20a0b3025c2ae62a58e80c1af841b;hp=32792df804fc9172e03822ea54312e9943f5b7b2;hpb=41cc2728b06b5e1eeb4cf5a4979692640049e047;p=pintos-anon

diff --git a/src/filesys/filehdr.h b/src/filesys/filehdr.h
index 32792df..60bca96 100644
--- a/src/filesys/filehdr.h
+++ b/src/filesys/filehdr.h
@@ -1,19 +1,22 @@
-#ifndef HEADER_FILEHDR_H
-#define HEADER_FILEHDR_H 1
+#ifndef FILESYS_FILEHDR_H
+#define FILESYS_FILEHDR_H
 
 #include <stdbool.h>
 #include <stddef.h>
-#include "disk.h"
-#include "off_t.h"
+#include "filesys/off_t.h"
+#include "devices/disk.h"
 
+/* Number of direct sector pointers in a file header. */
 #define DIRECT_CNT ((DISK_SECTOR_SIZE - sizeof (off_t) * 2)     \
                     / sizeof (disk_sector_t))
 
+/* File header.
+   This is both an in-memory and on-disk structure. */
 struct filehdr 
   {
-    off_t length;
-    size_t sector_cnt;
-    disk_sector_t sectors[DIRECT_CNT];
+    off_t length;                       /* File size in bytes. */
+    size_t sector_cnt;                  /* File size in sectors. */
+    disk_sector_t sectors[DIRECT_CNT];  /* Sectors allocated for file. */
   };
 
 struct bitmap;
@@ -26,4 +29,4 @@ disk_sector_t filehdr_byte_to_sector (const struct filehdr *, off_t);
 off_t filehdr_length (const struct filehdr *);
 void filehdr_print (const struct filehdr *);
 
-#endif /* filehdr.h */
+#endif /* filesys/filehdr.h */