Revision: 12815
Author:   [email protected]
Date:     Thu Oct 25 05:23:03 2012
Log:      Expose gc(true) to JavaScript, which triggers a scavenger GC.

With the --expose_gc option, gc() is exposed to JavaScript. Currently gc() triggers a full GC.

To enable JavaScript to test the behavior of a scavenger GC, this patch exposes gc(true). If the first argument is true, gc(...) triggers a scavenger GC. Otherwise, gc(...) triggers a full GC.

BUG=
Test=Manually confirmed that gc() and gc(false) trigger a full GC and that gc(true) triggers a scavenger GC.

Review URL: https://codereview.chromium.org/11232065
Patch from Kentaro Hara <[email protected]>.
http://code.google.com/p/v8/source/detail?r=12815

Modified:
 /branches/bleeding_edge/src/extensions/gc-extension.cc

=======================================
--- /branches/bleeding_edge/src/extensions/gc-extension.cc Thu Mar 29 02:45:46 2012 +++ /branches/bleeding_edge/src/extensions/gc-extension.cc Thu Oct 25 05:23:03 2012
@@ -40,7 +40,11 @@


 v8::Handle<v8::Value> GCExtension::GC(const v8::Arguments& args) {
-  HEAP->CollectAllGarbage(Heap::kNoGCFlags, "gc extension");
+  if (args[0]->BooleanValue()) {
+    HEAP->CollectGarbage(NEW_SPACE, "gc extension");
+  } else {
+    HEAP->CollectAllGarbage(Heap::kNoGCFlags, "gc extension");
+  }
   return v8::Undefined();
 }

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