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
178
179
180
181
182
183
184
185
186
187
188
189
190
191
|
/*
*
* Copyright 2015 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#include <stddef.h>
#include "gtest/gtest.h"
#include <grpc/slice.h>
#include <grpc/slice_buffer.h>
#include <grpc/support/alloc.h>
#include "src/core/lib/slice/slice_internal.h"
#include "test/core/util/test_config.h"
static constexpr size_t kTotalDataLength = 4096;
void test_slice_buffer_add() {
grpc_slice_buffer buf;
grpc_slice aaa = grpc_slice_from_copied_string("aaa");
grpc_slice bb = grpc_slice_from_copied_string("bb");
size_t i;
grpc_slice_buffer_init(&buf);
for (i = 0; i < 10; i++) {
grpc_slice_ref(aaa);
grpc_slice_ref(bb);
grpc_slice_buffer_add(&buf, aaa);
grpc_slice_buffer_add(&buf, bb);
}
ASSERT_GT(buf.count, 0);
ASSERT_EQ(buf.length, 50);
grpc_slice_buffer_reset_and_unref(&buf);
ASSERT_EQ(buf.count, 0);
ASSERT_EQ(buf.length, 0);
for (i = 0; i < 10; i++) {
grpc_slice_ref(aaa);
grpc_slice_ref(bb);
grpc_slice_buffer_add(&buf, aaa);
grpc_slice_buffer_add(&buf, bb);
}
ASSERT_GT(buf.count, 0);
ASSERT_EQ(buf.length, 50);
for (i = 0; i < 10; i++) {
grpc_slice_buffer_pop(&buf);
grpc_slice_unref(aaa);
grpc_slice_unref(bb);
}
ASSERT_EQ(buf.count, 0);
ASSERT_EQ(buf.length, 0);
grpc_slice_buffer_destroy(&buf);
}
static void free_data(void* data, size_t len) {
ASSERT_EQ(len, kTotalDataLength);
gpr_free(data);
}
void test_slice_buffer_add_contiguous_slices() {
grpc_slice_buffer buf;
grpc_slice_buffer_init(&buf);
char* data = reinterpret_cast<char*>(gpr_malloc(kTotalDataLength));
ASSERT_NE(data, nullptr);
grpc_slice a = grpc_slice_new_with_len(data, kTotalDataLength, free_data);
grpc_slice s1 = grpc_slice_split_head(&a, kTotalDataLength / 4);
grpc_slice s2 = grpc_slice_split_head(&a, kTotalDataLength / 4);
grpc_slice s3 = grpc_slice_split_head(&a, kTotalDataLength / 4);
grpc_slice_buffer_add(&buf, s1);
ASSERT_EQ(buf.count, 1);
ASSERT_EQ(buf.length, kTotalDataLength / 4);
grpc_slice_buffer_add(&buf, s2);
ASSERT_EQ(buf.count, 1);
ASSERT_EQ(buf.length, kTotalDataLength / 2);
grpc_slice_buffer_add(&buf, s3);
ASSERT_EQ(buf.count, 1);
ASSERT_EQ(buf.length, 3 * kTotalDataLength / 4);
grpc_slice_buffer_add(&buf, a);
ASSERT_EQ(buf.count, 1);
ASSERT_EQ(buf.length, kTotalDataLength);
grpc_slice_buffer_destroy(&buf);
}
void test_slice_buffer_move_first() {
grpc_slice slices[3];
grpc_slice_buffer src;
grpc_slice_buffer dst;
int idx = 0;
size_t src_len = 0;
size_t dst_len = 0;
slices[0] = grpc_slice_from_copied_string("aaa");
slices[1] = grpc_slice_from_copied_string("bbbb");
slices[2] = grpc_slice_from_copied_string("ccc");
grpc_slice_buffer_init(&src);
grpc_slice_buffer_init(&dst);
for (idx = 0; idx < 3; idx++) {
grpc_slice_ref(slices[idx]);
/* For this test, it is important that we add each slice at a new
slice index */
grpc_slice_buffer_add_indexed(&src, slices[idx]);
grpc_slice_buffer_add_indexed(&dst, slices[idx]);
}
/* Case 1: Move more than the first slice's length from src to dst */
src_len = src.length;
dst_len = dst.length;
grpc_slice_buffer_move_first(&src, 4, &dst);
src_len -= 4;
dst_len += 4;
ASSERT_EQ(src.length, src_len);
ASSERT_EQ(dst.length, dst_len);
/* src now has two slices ["bbb"] and ["ccc"] */
/* Case 2: Move the first slice from src to dst */
grpc_slice_buffer_move_first(&src, 3, &dst);
src_len -= 3;
dst_len += 3;
ASSERT_EQ(src.length, src_len);
ASSERT_EQ(dst.length, dst_len);
/* src now has one slice ["ccc"] */
/* Case 3: Move less than the first slice's length from src to dst*/
grpc_slice_buffer_move_first(&src, 2, &dst);
src_len -= 2;
dst_len += 2;
ASSERT_EQ(src.length, src_len);
ASSERT_EQ(dst.length, dst_len);
}
void test_slice_buffer_first() {
grpc_slice slices[3];
slices[0] = grpc_slice_from_copied_string("aaa");
slices[1] = grpc_slice_from_copied_string("bbbb");
slices[2] = grpc_slice_from_copied_string("ccccc");
grpc_slice_buffer buf;
grpc_slice_buffer_init(&buf);
for (int idx = 0; idx < 3; ++idx) {
grpc_slice_ref(slices[idx]);
grpc_slice_buffer_add_indexed(&buf, slices[idx]);
}
grpc_slice* first = grpc_slice_buffer_peek_first(&buf);
ASSERT_EQ(GPR_SLICE_LENGTH(*first), GPR_SLICE_LENGTH(slices[0]));
ASSERT_EQ(buf.count, 3);
ASSERT_EQ(buf.length, 12);
grpc_slice_buffer_sub_first(&buf, 1, 2);
first = grpc_slice_buffer_peek_first(&buf);
ASSERT_EQ(GPR_SLICE_LENGTH(*first), 1);
ASSERT_EQ(buf.count, 3);
ASSERT_EQ(buf.length, 10);
grpc_slice_buffer_remove_first(&buf);
first = grpc_slice_buffer_peek_first(&buf);
ASSERT_EQ(GPR_SLICE_LENGTH(*first), GPR_SLICE_LENGTH(slices[1]));
ASSERT_EQ(buf.count, 2);
ASSERT_EQ(buf.length, 9);
grpc_slice_buffer_remove_first(&buf);
first = grpc_slice_buffer_peek_first(&buf);
ASSERT_EQ(GPR_SLICE_LENGTH(*first), GPR_SLICE_LENGTH(slices[2]));
ASSERT_EQ(buf.count, 1);
ASSERT_EQ(buf.length, 5);
grpc_slice_buffer_remove_first(&buf);
ASSERT_EQ(buf.count, 0);
ASSERT_EQ(buf.length, 0);
}
int main(int argc, char** argv) {
grpc::testing::TestEnvironment env(&argc, argv);
::testing::InitGoogleTest(&argc, argv);
grpc::testing::TestGrpcScope grpc_scope;
return RUN_ALL_TESTS();
}
|
