Home | History | Annotate | Download | only in tests
      1 /*
      2  * Copyright 2012 Google Inc.
      3  *
      4  * Use of this source code is governed by a BSD-style license that can be
      5  * found in the LICENSE file.
      6  */
      7 
      8 #include "SkRefCnt.h"
      9 #include "SkThreadUtils.h"
     10 #include "SkTypes.h"
     11 #include "SkWeakRefCnt.h"
     12 #include "Test.h"
     13 
     14 static void bounce_ref(void* data) {
     15     SkRefCnt* ref = static_cast<SkRefCnt*>(data);
     16     for (int i = 0; i < 100000; ++i) {
     17         ref->ref();
     18         ref->unref();
     19     }
     20 }
     21 
     22 static void test_refCnt(skiatest::Reporter* reporter) {
     23     SkRefCnt* ref = new SkRefCnt();
     24 
     25     SkThread thing1(bounce_ref, ref);
     26     SkThread thing2(bounce_ref, ref);
     27 
     28     SkASSERT(thing1.start());
     29     SkASSERT(thing2.start());
     30 
     31     thing1.join();
     32     thing2.join();
     33 
     34     REPORTER_ASSERT(reporter, ref->unique());
     35     ref->unref();
     36 }
     37 
     38 static void bounce_weak_ref(void* data) {
     39     SkWeakRefCnt* ref = static_cast<SkWeakRefCnt*>(data);
     40     for (int i = 0; i < 100000; ++i) {
     41         if (ref->try_ref()) {
     42             ref->unref();
     43         }
     44     }
     45 }
     46 
     47 static void bounce_weak_weak_ref(void* data) {
     48     SkWeakRefCnt* ref = static_cast<SkWeakRefCnt*>(data);
     49     for (int i = 0; i < 100000; ++i) {
     50         ref->weak_ref();
     51         ref->weak_unref();
     52     }
     53 }
     54 
     55 static void test_weakRefCnt(skiatest::Reporter* reporter) {
     56     SkWeakRefCnt* ref = new SkWeakRefCnt();
     57 
     58     SkThread thing1(bounce_ref, ref);
     59     SkThread thing2(bounce_ref, ref);
     60     SkThread thing3(bounce_weak_ref, ref);
     61     SkThread thing4(bounce_weak_weak_ref, ref);
     62 
     63     SkASSERT(thing1.start());
     64     SkASSERT(thing2.start());
     65     SkASSERT(thing3.start());
     66     SkASSERT(thing4.start());
     67 
     68     thing1.join();
     69     thing2.join();
     70     thing3.join();
     71     thing4.join();
     72 
     73     REPORTER_ASSERT(reporter, ref->unique());
     74     REPORTER_ASSERT(reporter, ref->getWeakCnt() == 1);
     75     ref->unref();
     76 }
     77 
     78 DEF_TEST(RefCnt, reporter) {
     79     test_refCnt(reporter);
     80     test_weakRefCnt(reporter);
     81 }
     82