Add explanatory comments to threads tests.

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

diff --git a/src/tests/threads/priority-donate-multiple.c b/src/tests/threads/priority-donate-multiple.c
index 012022b2e47b9bdfc4ba969827b6775c21b73ab4..69056914306bdede6f7c53047adfdb33d3ce706f 100644 (file)
--- a/src/tests/threads/priority-donate-multiple.c
+++ b/src/tests/threads/priority-donate-multiple.c
@@ -1,10 +1,13 @@
-/* Problem 1-3: Priority Scheduling tests.
-
+/* The main thread acquires locks A and B, then it creates two
+   higher-priority threads.  Each of these threads blocks
+   acquiring one of the locks and thus donate their priority to
+   the main thread.  The main thread releases the locks in turn
+   and relinquishes its donated priorities.
+   
    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"