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// Copyright 2024 The Abseil 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
//
// https://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 <tuple>
#include <vector>
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include "absl/base/attributes.h"
#include "absl/base/config.h"
#include "absl/base/internal/tracing.h"
#if ABSL_HAVE_ATTRIBUTE_WEAK
namespace {
using ::testing::ElementsAre;
using ::absl::base_internal::ObjectKind;
enum Function { kWait, kContinue, kSignal, kObserved };
using Record = std::tuple<Function, const void*, ObjectKind>;
thread_local std::vector<Record>* tls_records = nullptr;
} // namespace
namespace absl {
ABSL_NAMESPACE_BEGIN
namespace base_internal {
// Strong extern "C" implementation.
extern "C" {
void ABSL_INTERNAL_C_SYMBOL(AbslInternalTraceWait)(const void* object,
ObjectKind kind) {
if (tls_records != nullptr) {
tls_records->push_back({kWait, object, kind});
}
}
void ABSL_INTERNAL_C_SYMBOL(AbslInternalTraceContinue)(const void* object,
ObjectKind kind) {
if (tls_records != nullptr) {
tls_records->push_back({kContinue, object, kind});
}
}
void ABSL_INTERNAL_C_SYMBOL(AbslInternalTraceSignal)(const void* object,
ObjectKind kind) {
if (tls_records != nullptr) {
tls_records->push_back({kSignal, object, kind});
}
}
void ABSL_INTERNAL_C_SYMBOL(AbslInternalTraceObserved)(const void* object,
ObjectKind kind) {
if (tls_records != nullptr) {
tls_records->push_back({kObserved, object, kind});
}
}
} // extern "C"
} // namespace base_internal
ABSL_NAMESPACE_END
} // namespace absl
namespace {
TEST(TracingInternal, InvokesStrongFunctionWithNullptr) {
std::vector<Record> records;
tls_records = &records;
auto kind = absl::base_internal::ObjectKind::kUnknown;
absl::base_internal::TraceWait(nullptr, kind);
absl::base_internal::TraceContinue(nullptr, kind);
absl::base_internal::TraceSignal(nullptr, kind);
absl::base_internal::TraceObserved(nullptr, kind);
tls_records = nullptr;
EXPECT_THAT(records, ElementsAre(Record{kWait, nullptr, kind},
Record{kContinue, nullptr, kind},
Record{kSignal, nullptr, kind},
Record{kObserved, nullptr, kind}));
}
TEST(TracingInternal, InvokesStrongFunctionWithObjectAddress) {
int object = 0;
std::vector<Record> records;
tls_records = &records;
auto kind = absl::base_internal::ObjectKind::kUnknown;
absl::base_internal::TraceWait(&object, kind);
absl::base_internal::TraceContinue(&object, kind);
absl::base_internal::TraceSignal(&object, kind);
absl::base_internal::TraceObserved(&object, kind);
tls_records = nullptr;
EXPECT_THAT(records, ElementsAre(Record{kWait, &object, kind},
Record{kContinue, &object, kind},
Record{kSignal, &object, kind},
Record{kObserved, &object, kind}));
}
} // namespace
#endif // ABSL_HAVE_ATTRIBUTE_WEAK
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