1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
|
// Copyright 2016 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <limits>
#include "src/globals.h"
#include "src/heap/slot-set.h"
#include "src/heap/spaces.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace v8 {
namespace internal {
TEST(SlotSet, InsertAndLookup1) {
SlotSet set;
set.SetPageStart(0);
for (int i = 0; i < Page::kPageSize; i += kPointerSize) {
EXPECT_FALSE(set.Lookup(i));
}
for (int i = 0; i < Page::kPageSize; i += kPointerSize) {
set.Insert(i);
}
for (int i = 0; i < Page::kPageSize; i += kPointerSize) {
EXPECT_TRUE(set.Lookup(i));
}
}
TEST(SlotSet, InsertAndLookup2) {
SlotSet set;
set.SetPageStart(0);
for (int i = 0; i < Page::kPageSize; i += kPointerSize) {
if (i % 7 == 0) {
set.Insert(i);
}
}
for (int i = 0; i < Page::kPageSize; i += kPointerSize) {
if (i % 7 == 0) {
EXPECT_TRUE(set.Lookup(i));
} else {
EXPECT_FALSE(set.Lookup(i));
}
}
}
TEST(SlotSet, Iterate) {
SlotSet set;
set.SetPageStart(0);
for (int i = 0; i < Page::kPageSize; i += kPointerSize) {
if (i % 7 == 0) {
set.Insert(i);
}
}
set.Iterate([](Address slot_address) {
uintptr_t intaddr = reinterpret_cast<uintptr_t>(slot_address);
if (intaddr % 3 == 0) {
return KEEP_SLOT;
} else {
return REMOVE_SLOT;
}
});
for (int i = 0; i < Page::kPageSize; i += kPointerSize) {
if (i % 21 == 0) {
EXPECT_TRUE(set.Lookup(i));
} else {
EXPECT_FALSE(set.Lookup(i));
}
}
}
TEST(SlotSet, Remove) {
SlotSet set;
set.SetPageStart(0);
for (int i = 0; i < Page::kPageSize; i += kPointerSize) {
if (i % 7 == 0) {
set.Insert(i);
}
}
for (int i = 0; i < Page::kPageSize; i += kPointerSize) {
if (i % 3 != 0) {
set.Remove(i);
}
}
for (int i = 0; i < Page::kPageSize; i += kPointerSize) {
if (i % 21 == 0) {
EXPECT_TRUE(set.Lookup(i));
} else {
EXPECT_FALSE(set.Lookup(i));
}
}
}
void CheckRemoveRangeOn(uint32_t start, uint32_t end) {
SlotSet set;
set.SetPageStart(0);
uint32_t first = start == 0 ? 0 : start - kPointerSize;
uint32_t last = end == Page::kPageSize ? end - kPointerSize : end;
for (uint32_t i = first; i <= last; i += kPointerSize) {
set.Insert(i);
}
set.RemoveRange(start, end);
if (first != start) {
EXPECT_TRUE(set.Lookup(first));
}
if (last == end) {
EXPECT_TRUE(set.Lookup(last));
}
for (uint32_t i = start; i < end; i += kPointerSize) {
EXPECT_FALSE(set.Lookup(i));
}
}
TEST(SlotSet, RemoveRange) {
CheckRemoveRangeOn(0, Page::kPageSize);
CheckRemoveRangeOn(1 * kPointerSize, 1023 * kPointerSize);
for (uint32_t start = 0; start <= 32; start++) {
CheckRemoveRangeOn(start * kPointerSize, (start + 1) * kPointerSize);
CheckRemoveRangeOn(start * kPointerSize, (start + 2) * kPointerSize);
const uint32_t kEnds[] = {32, 64, 100, 128, 1024, 1500, 2048};
for (int i = 0; i < sizeof(kEnds) / sizeof(uint32_t); i++) {
for (int k = -3; k <= 3; k++) {
uint32_t end = (kEnds[i] + k);
if (start < end) {
CheckRemoveRangeOn(start * kPointerSize, end * kPointerSize);
}
}
}
}
SlotSet set;
set.SetPageStart(0);
set.Insert(Page::kPageSize / 2);
set.RemoveRange(0, Page::kPageSize);
for (uint32_t i = 0; i < Page::kPageSize; i += kPointerSize) {
EXPECT_FALSE(set.Lookup(i));
}
}
TEST(TypedSlotSet, Iterate) {
TypedSlotSet set(0);
const int kDelta = 10000001;
const int kHostDelta = 50001;
int added = 0;
uint32_t j = 0;
for (uint32_t i = 0; i < TypedSlotSet::kMaxOffset;
i += kDelta, j += kHostDelta) {
SlotType type = static_cast<SlotType>(i % NUMBER_OF_SLOT_TYPES);
set.Insert(type, j, i);
++added;
}
int iterated = 0;
set.Iterate([&iterated, kDelta, kHostDelta](SlotType type, Address host_addr,
Address addr) {
uint32_t i = static_cast<uint32_t>(reinterpret_cast<uintptr_t>(addr));
uint32_t j = static_cast<uint32_t>(reinterpret_cast<uintptr_t>(host_addr));
EXPECT_EQ(i % NUMBER_OF_SLOT_TYPES, static_cast<uint32_t>(type));
EXPECT_EQ(0, i % kDelta);
EXPECT_EQ(0, j % kHostDelta);
++iterated;
return i % 2 == 0 ? KEEP_SLOT : REMOVE_SLOT;
});
EXPECT_EQ(added, iterated);
iterated = 0;
set.Iterate([&iterated](SlotType type, Address host_addr, Address addr) {
uint32_t i = static_cast<uint32_t>(reinterpret_cast<uintptr_t>(addr));
EXPECT_EQ(0, i % 2);
++iterated;
return KEEP_SLOT;
});
EXPECT_EQ(added / 2, iterated);
}
} // namespace internal
} // namespace v8
|
