Add bench and test for SkRefCnt.

http://codereview.appspot.com/6195071/

This also adds a cross platform SkThread for testing purposes.


git-svn-id: http://skia.googlecode.com/svn/trunk@3921 2bbb7eff-a529-9590-31e7-b0007b416f81

1 files changed, 44 insertions, 0 deletions

diff --git a/tests/RefCntTest.cpp b/tests/RefCntTest.cpp
new file mode 100644
index 0000000000..e48fd8a292
--- /dev/null
+++ b/tests/RefCntTest.cpp
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "SkTypes.h"
+#include "Test.h"
+
+#include "SkRefCnt.h"
+#include "SkThreadUtils.h"
+
+///////////////////////////////////////////////////////////////////////////////
+
+static void bounce_ref(void* data) {
+    SkRefCnt* ref = static_cast<SkRefCnt*>(data);
+    for (int i = 0; i < 100000; ++i) {
+        ref->ref();
+        ref->unref();
+    }
+}
+
+static void test_refCnt(skiatest::Reporter* reporter) {
+    SkRefCnt* ref = new SkRefCnt();
+
+    SkThread thing1(bounce_ref, ref);
+    SkThread thing2(bounce_ref, ref);
+
+    thing1.setProcessorAffinity(0);
+    thing2.setProcessorAffinity(23);
+
+    SkASSERT(thing1.start());
+    SkASSERT(thing2.start());
+
+    thing1.join();
+    thing2.join();
+
+    REPORTER_ASSERT(reporter, ref->getRefCnt() == 1);
+    ref->unref();
+}
+
+#include "TestClassDef.h"
+DEFINE_TESTCLASS("ref_cnt", RefCntTestClass, test_refCnt)