skia2/tests/RefCntTest.cpp

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/*
* 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 "SkRefCnt.h"
#include "SkThreadUtils.h"
#include "SkTypes.h"
#include "SkWeakRefCnt.h"
#include "Test.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);
SkASSERT(thing1.start());
SkASSERT(thing2.start());
thing1.join();
thing2.join();
REPORTER_ASSERT(reporter, ref->unique());
ref->unref();
}
static void bounce_weak_ref(void* data) {
SkWeakRefCnt* ref = static_cast<SkWeakRefCnt*>(data);
for (int i = 0; i < 100000; ++i) {
if (ref->try_ref()) {
ref->unref();
}
}
}
static void bounce_weak_weak_ref(void* data) {
SkWeakRefCnt* ref = static_cast<SkWeakRefCnt*>(data);
for (int i = 0; i < 100000; ++i) {
ref->weak_ref();
ref->weak_unref();
}
}
static void test_weakRefCnt(skiatest::Reporter* reporter) {
SkWeakRefCnt* ref = new SkWeakRefCnt();
SkThread thing1(bounce_ref, ref);
SkThread thing2(bounce_ref, ref);
SkThread thing3(bounce_weak_ref, ref);
SkThread thing4(bounce_weak_weak_ref, ref);
SkASSERT(thing1.start());
SkASSERT(thing2.start());
SkASSERT(thing3.start());
SkASSERT(thing4.start());
thing1.join();
thing2.join();
thing3.join();
thing4.join();
REPORTER_ASSERT(reporter, ref->unique());
REPORTER_ASSERT(reporter, ref->getWeakCnt() == 1);
ref->unref();
}
DEF_TEST(RefCnt, reporter) {
test_refCnt(reporter);
test_weakRefCnt(reporter);
}