MJY-HUST opened a new issue, #2864:
URL: https://github.com/apache/brpc/issues/2864
* 项目中依赖brpc作为第三方库时出现的报错问题:
brpc中的mutex.cpp覆盖了pthread_mutex_lock的实现，疑似导致tsan识别不了bthread内部实现的pthread_mutex_lock，导致出现了告警，请问有办法解决这个warning吗？一个简单的复现方式
```cpp
#include <bthread/bthread.h>
#include <gflags/gflags.h>
#include <gtest/gtest.h>
namespace my::test {
class TsanCheckTest : public ::testing::Test {};
int counter;
std::mutex mutex_std;
pthread_mutex_t mu;
const int kIncrementsPerThread = 100;
void* Locker(void*) {
for (int i = 0; i < kIncrementsPerThread; ++i) {
pthread_mutex_lock(&mu);
counter++;
pthread_mutex_unlock(&mu);
}
return nullptr;
}
TEST_F(TsanCheckTest, MutexUsedInPthread) {
pthread_mutex_init(&mu, nullptr);
const int num_threads = 8;
pthread_t th[num_threads];
counter = 0;
for (int i = 0; i < num_threads; ++i) {
ASSERT_EQ(0, pthread_create(&th[i], nullptr, Locker, nullptr));
}
for (int i = 0; i < num_threads; ++i) {
ASSERT_EQ(0, pthread_join(th[i], nullptr));
}
ASSERT_EQ(counter, num_threads * kIncrementsPerThread);
}
TEST_F(TsanCheckTest, MutexUsedInBthread) {
const int num_threads = 8;
bthread_t th[num_threads];
counter = 0;
for (int i = 0; i < num_threads; ++i) {
ASSERT_EQ(0, bthread_start_urgent(&th[i], nullptr, Locker, nullptr));
}
for (int i = 0; i < num_threads; ++i) {
ASSERT_EQ(0, bthread_join(th[i], nullptr));
}
ASSERT_EQ(counter, num_threads * kIncrementsPerThread);
}
} // namespace my::test
```
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