freebsd-nq/test/tsan/mutex_annotations.cc

50 lines
910 B
C++

// RUN: %clangxx_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s
#include "test.h"
// Test that a linker-initialized mutex can be created/destroyed while in use.
// Stub for testing, just invokes annotations.
// Meant to be synchronized externally with test barrier.
class Mutex {
public:
void Create(bool linker_initialized = false) {
if (linker_initialized)
ANNOTATE_RWLOCK_CREATE_STATIC(&state_);
else
ANNOTATE_RWLOCK_CREATE(&state_);
}
void Destroy() {
ANNOTATE_RWLOCK_DESTROY(&state_);
}
void Lock() {
ANNOTATE_RWLOCK_ACQUIRED(&state_, true);
}
void Unlock() {
ANNOTATE_RWLOCK_RELEASED(&state_, true);
}
private:
long long state_;
};
int main() {
Mutex m;
m.Lock();
m.Create(true);
m.Unlock();
m.Lock();
m.Destroy();
m.Unlock();
fprintf(stderr, "DONE\n");
return 0;
}
// CHECK-NOT: WARNING: ThreadSanitizer:
// CHECK: DONE