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
|
/*
*
* Copyright 2020 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 "src/core/lib/gprpp/examine_stack.h"
#include "absl/debugging/stacktrace.h"
#include "absl/debugging/symbolize.h"
#include "gtest/gtest.h"
#include <grpc/support/log.h>
namespace {
std::string SimpleCurrentStackTraceProvider() { return "stacktrace"; }
std::string AbseilCurrentStackTraceProvider() {
std::string result = "Stack trace:\n";
constexpr int kNumStackFrames = 10;
void* stack[kNumStackFrames];
int frame_sizes[kNumStackFrames];
int depth = absl::GetStackFrames(stack, frame_sizes, kNumStackFrames, 1);
for (int i = 0; i < depth; i++) {
char tmp[1024];
const char* symbol = "(unknown)";
if (absl::Symbolize(stack[i], tmp, sizeof(tmp))) {
symbol = tmp;
}
result += symbol;
result += +"\n";
}
return result;
}
} // namespace
TEST(ExamineStackTest, NullStackProvider) {
grpc_core::SetCurrentStackTraceProvider(nullptr);
EXPECT_EQ(grpc_core::GetCurrentStackTraceProvider(), nullptr);
EXPECT_EQ(grpc_core::GetCurrentStackTrace(), absl::nullopt);
}
TEST(ExamineStackTest, SimpleStackProvider) {
grpc_core::SetCurrentStackTraceProvider(&SimpleCurrentStackTraceProvider);
EXPECT_NE(grpc_core::GetCurrentStackTraceProvider(), nullptr);
EXPECT_EQ(grpc_core::GetCurrentStackTrace(), "stacktrace");
}
TEST(ExamineStackTest, AbseilStackProvider) {
grpc_core::SetCurrentStackTraceProvider(&AbseilCurrentStackTraceProvider);
EXPECT_NE(grpc_core::GetCurrentStackTraceProvider(), nullptr);
const absl::optional<std::string> stack_trace =
grpc_core::GetCurrentStackTrace();
EXPECT_NE(stack_trace, absl::nullopt);
gpr_log(GPR_INFO, "stack_trace=%s", stack_trace->c_str());
#if !defined(NDEBUG) && !defined(GPR_MUSL_LIBC_COMPAT)
EXPECT_TRUE(stack_trace->find("GetCurrentStackTrace") != std::string::npos);
#endif
}
int main(int argc, char** argv) {
absl::InitializeSymbolizer(argv[0]);
::testing::InitGoogleTest(&argc, argv);
int ret = RUN_ALL_TESTS();
return ret;
}
|
