commit c4e965e920e1fb6328407147c478513769d0a2c7
author Nathan Harmata <nharmata@google.com> Mon Nov 21 16:20:41 2016 +0000
committer Dmitry Lomov <dslomov@google.com> Mon Nov 21 19:42:15 2016 +0000
tree 92b74b2e5a0db9b1fb05b8745454ab4634a6db74
parent f75878dcaa97733abe984aea8e9b65554683aa18

Enable parallel evaluation of 'e' in query expressions of the form 'buildfiles(e)'.

--
MOS_MIGRATED_REVID=139787078

src/main/java/com/google/devtools/build/lib/query2/engine/BuildFilesFunction.java

diff --git a/src/main/java/com/google/devtools/build/lib/query2/engine/BuildFilesFunction.java b/src/main/java/com/google/devtools/build/lib/query2/engine/BuildFilesFunction.java
index 81f20d4..0e65cbd 100644
--- a/src/main/java/com/google/devtools/build/lib/query2/engine/BuildFilesFunction.java
+++ b/src/main/java/com/google/devtools/build/lib/query2/engine/BuildFilesFunction.java
@@ -52,7 +52,7 @@
     env.eval(
         args.get(0).getExpression(),
         context,
-        new Callback<T>() {
+        new ThreadSafeCallback<T>() {
           @Override
           public void process(Iterable<T> partialResult)
               throws QueryException, InterruptedException {
@@ -73,6 +73,7 @@
       List<Argument> args,
       ThreadSafeCallback<T> callback,
       ForkJoinPool forkJoinPool) throws QueryException, InterruptedException {
+    // 'eval' is written in such a way that it enables parallel evaluation of 'expression'.
     eval(env, context, expression, args, callback);
   }