Add explanatory comments to threads tests.

[pintos-anon] / src / tests / threads / priority-donate-one.c

diff --git a/src/tests/threads/priority-donate-one.c b/src/tests/threads/priority-donate-one.c
index 087371f1a4cb491a5f1819437a1d22fcca5c84b6..603a7fe45a9b3469133f21aef75041d596a2981a 100644 (file)
--- a/src/tests/threads/priority-donate-one.c
+++ b/src/tests/threads/priority-donate-one.c
@@ -1,10 +1,13 @@
-/* Problem 1-3: Priority Scheduling tests.
+/* The main thread acquires a lock.  Then it creates two
+   higher-priority threads that block acquiring the lock, causing
+   them to donate their priorities to the main thread.  When the
+   main thread releases the lock, the other threads should
+   acquire it in priority order.
 
    Based on a test originally submitted for Stanford's CS 140 in
-   winter 1999 by by Matt Franklin
-   <startled@leland.stanford.edu>, Greg Hutchins
-   <gmh@leland.stanford.edu>, Yu Ping Hu <yph@cs.stanford.edu>.
-   Modified by arens. */
+   winter 1999 by Matt Franklin <startled@leland.stanford.edu>,
+   Greg Hutchins <gmh@leland.stanford.edu>, Yu Ping Hu
+   <yph@cs.stanford.edu>.  Modified by arens. */
 
 #include <stdio.h>
 #include "tests/threads/tests.h"