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      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     thing1.setProcessorAffinity(0);
     29     thing2.setProcessorAffinity(23);
     30 
     31     SkASSERT(thing1.start());
     32     SkASSERT(thing2.start());
     33 
     34     thing1.join();
     35     thing2.join();
     36 
     37     REPORTER_ASSERT(reporter, ref->unique());
     38     ref->unref();
     39 }
     40 
     41 static void bounce_weak_ref(void* data) {
     42     SkWeakRefCnt* ref = static_cast<SkWeakRefCnt*>(data);
     43     for (int i = 0; i < 100000; ++i) {
     44         if (ref->try_ref()) {
     45             ref->unref();
     46         }
     47     }
     48 }
     49 
     50 static void bounce_weak_weak_ref(void* data) {
     51     SkWeakRefCnt* ref = static_cast<SkWeakRefCnt*>(data);
     52     for (int i = 0; i < 100000; ++i) {
     53         ref->weak_ref();
     54         ref->weak_unref();
     55     }
     56 }
     57 
     58 static void test_weakRefCnt(skiatest::Reporter* reporter) {
     59     SkWeakRefCnt* ref = new SkWeakRefCnt();
     60 
     61     SkThread thing1(bounce_ref, ref);
     62     SkThread thing2(bounce_ref, ref);
     63     SkThread thing3(bounce_weak_ref, ref);
     64     SkThread thing4(bounce_weak_weak_ref, ref);
     65 
     66     thing1.setProcessorAffinity(0);
     67     thing2.setProcessorAffinity(23);
     68     thing3.setProcessorAffinity(2);
     69     thing4.setProcessorAffinity(17);
     70 
     71     SkASSERT(thing1.start());
     72     SkASSERT(thing2.start());
     73     SkASSERT(thing3.start());
     74     SkASSERT(thing4.start());
     75 
     76     thing1.join();
     77     thing2.join();
     78     thing3.join();
     79     thing4.join();
     80 
     81     REPORTER_ASSERT(reporter, ref->unique());
     82     REPORTER_ASSERT(reporter, ref->getWeakCnt() == 1);
     83     ref->unref();
     84 }
     85 
     86 DEF_TEST(RefCnt, reporter) {
     87     test_refCnt(reporter);
     88     test_weakRefCnt(reporter);
     89 }
     90