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1 /* | 1 /* |
2 * Copyright 2014 Google, Inc | 2 * Copyright 2014 Google, Inc |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #include "SkSmallAllocator.h" | 8 #include "SkSmallAllocator.h" |
9 #include "SkTypes.h" | 9 #include "SkTypes.h" |
10 #include "Test.h" | 10 #include "Test.h" |
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23 | 23 |
24 private: | 24 private: |
25 static int kCount; | 25 static int kCount; |
26 }; | 26 }; |
27 | 27 |
28 int CountingClass::kCount; | 28 int CountingClass::kCount; |
29 | 29 |
30 template<uint32_t kMaxObjects, size_t kBytes> void test_allocator(skiatest::Repo
rter* reporter) { | 30 template<uint32_t kMaxObjects, size_t kBytes> void test_allocator(skiatest::Repo
rter* reporter) { |
31 { | 31 { |
32 SkSmallAllocator<kMaxObjects, kBytes> alloc; | 32 SkSmallAllocator<kMaxObjects, kBytes> alloc; |
33 for (uint32_t i = 0; i < kMaxObjects + 1; ++i) { | 33 for (uint32_t i = 0; i < kMaxObjects; ++i) { |
34 CountingClass* c = alloc.template createT<CountingClass>(); | 34 CountingClass* c = alloc.template createT<CountingClass>(); |
35 REPORTER_ASSERT(reporter, c != nullptr); | 35 REPORTER_ASSERT(reporter, c != nullptr); |
36 REPORTER_ASSERT(reporter, CountingClass::GetCount() == static_cast<i
nt>(i+1)); | 36 REPORTER_ASSERT(reporter, CountingClass::GetCount() == static_cast<i
nt>(i+1)); |
37 } | 37 } |
38 } | 38 } |
39 REPORTER_ASSERT(reporter, CountingClass::GetCount() == 0); | 39 REPORTER_ASSERT(reporter, CountingClass::GetCount() == 0); |
40 } | 40 } |
41 | 41 |
42 // Tests that ensure that the destructor is called, whether the objects | 42 // Tests that ensure that the destructor is called, whether the objects |
43 // were created in fStorage or on the heap. | 43 // were created in fStorage or on the heap. |
44 DEF_TEST(SmallAllocator_destructor, reporter) { | 44 DEF_TEST(SmallAllocator_destructor, reporter) { |
45 // Four times as many bytes as objects will never require any heap | 45 // Four times as many bytes as objects will never require any heap |
46 // allocations (since SkAlign4(sizeof(CountingClass)) == 4). | 46 // allocations (since SkAlign4(sizeof(CountingClass)) == 4 and the allocator |
| 47 // will stop once it reaches kMaxObjects). |
47 test_allocator<5, 20>(reporter); | 48 test_allocator<5, 20>(reporter); |
48 test_allocator<10, 40>(reporter); | 49 test_allocator<10, 40>(reporter); |
49 test_allocator<20, 80>(reporter); | 50 test_allocator<20, 80>(reporter); |
50 | 51 |
| 52 #ifndef SK_DEBUG |
51 // Allowing less bytes than objects means some will be allocated on the | 53 // Allowing less bytes than objects means some will be allocated on the |
52 // heap. Don't run these in debug where we assert. | 54 // heap. Don't run these in debug where we assert. |
53 test_allocator<50, 20>(reporter); | 55 test_allocator<50, 20>(reporter); |
54 test_allocator<100, 20>(reporter); | 56 test_allocator<100, 20>(reporter); |
| 57 #endif |
55 } | 58 } |
56 | 59 |
57 class Dummy { | 60 class Dummy { |
58 }; | 61 }; |
59 | 62 |
60 class DummyContainer { | 63 class DummyContainer { |
61 public: | 64 public: |
62 explicit DummyContainer(Dummy* d) | 65 explicit DummyContainer(Dummy* d) |
63 :fDummy(d) | 66 :fDummy(d) |
64 {} | 67 {} |
65 | 68 |
66 Dummy* getDummy() const { return fDummy; } | 69 Dummy* getDummy() const { return fDummy; } |
67 | 70 |
68 private: | 71 private: |
69 Dummy* fDummy; | 72 Dummy* fDummy; |
70 }; | 73 }; |
71 | 74 |
72 // Test that using a createT with a constructor taking a pointer as a | 75 // Test that using a createT with a constructor taking a pointer as a |
73 // parameter works as expected. | 76 // parameter works as expected. |
74 DEF_TEST(SmallAllocator_pointer, reporter) { | 77 DEF_TEST(SmallAllocator_pointer, reporter) { |
75 SkSmallAllocator<1, 8> alloc; | 78 SkSmallAllocator<1, 8> alloc; |
76 Dummy d; | 79 Dummy d; |
77 DummyContainer* container = alloc.createT<DummyContainer>(&d); | 80 DummyContainer* container = alloc.createT<DummyContainer>(&d); |
78 REPORTER_ASSERT(reporter, container != nullptr); | 81 REPORTER_ASSERT(reporter, container != nullptr); |
79 REPORTER_ASSERT(reporter, container->getDummy() == &d); | 82 REPORTER_ASSERT(reporter, container->getDummy() == &d); |
80 } | 83 } |
81 | |
82 // Test that using a createWithIniterT works as expected. | |
83 DEF_TEST(SmallAllocator_initer, reporter) { | |
84 SkSmallAllocator<1, 8> alloc; | |
85 Dummy d; | |
86 DummyContainer* container = alloc.createWithIniter( | |
87 sizeof(DummyContainer), | |
88 [&](void* storage) { | |
89 return new (storage) DummyContainer(&d); | |
90 }); | |
91 REPORTER_ASSERT(reporter, container != nullptr); | |
92 REPORTER_ASSERT(reporter, container->getDummy() == &d); | |
93 } | |
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