1 files changed, 35 insertions, 0 deletions
diff --git a/src/userprog/flist.h b/src/userprog/flist.h
new file mode 100644
index 0000000..3fcd1d5
--- /dev/null
+++ b/src/userprog/flist.h
@@ -0,0 +1,35 @@
+#ifndef _MAP_H_
+#define _MAP_H_
+
+/* Place functions to handle a process open files here (file list).
+   
+   flist.h : Your function declarations and documentation.
+   flist.c : Your implementation.
+
+   The following is strongly recommended:
+
+   - A function that given a file (struct file*, see filesys/file.h)
+     and a process id INSERT this in a list of files. Return an
+     integer that can be used to find the opened file later.
+
+   - A function that given an integer (obtained from above function)
+     and a process id FIND the file in a list. Should return NULL if
+     the specified process did not insert the file or already removed
+     it.
+
+   - A function that given an integer (obtained from above function)
+     and a process id REMOVE the file from a list. Should return NULL
+     if the specified process did not insert the file or already
+     removed it.
+   
+   - A function that given a process id REMOVE ALL files the specified
+     process have in the list.
+
+   All files obtained from filesys/filesys.c:filesys_open() are
+   considered OPEN files and must be added to a list or else kept
+   track of, to guarantee ALL open files are eventyally CLOSED
+   (probably when removed from the list(s)).
+ */
+
+
+#endif