| 1 | // RUN: %clangxx_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s |
|---|---|
| 2 | #include "test.h" |
| 3 | |
| 4 | // Test that a linker-initialized mutex can be created/destroyed while in use. |
| 5 | |
| 6 | // Stub for testing, just invokes annotations. |
| 7 | // Meant to be synchronized externally with test barrier. |
| 8 | class Mutex { |
| 9 | public: |
| 10 | void Create(bool linker_initialized = false) { |
| 11 | if (linker_initialized) |
| 12 | ANNOTATE_RWLOCK_CREATE_STATIC(&state_); |
| 13 | else |
| 14 | ANNOTATE_RWLOCK_CREATE(&state_); |
| 15 | } |
| 16 | |
| 17 | void Destroy() { |
| 18 | ANNOTATE_RWLOCK_DESTROY(&state_); |
| 19 | } |
| 20 | |
| 21 | void Lock() { |
| 22 | ANNOTATE_RWLOCK_ACQUIRED(&state_, true); |
| 23 | } |
| 24 | |
| 25 | void Unlock() { |
| 26 | ANNOTATE_RWLOCK_RELEASED(&state_, true); |
| 27 | } |
| 28 | |
| 29 | private: |
| 30 | long long state_; |
| 31 | }; |
| 32 | |
| 33 | int main() { |
| 34 | Mutex m; |
| 35 | |
| 36 | m.Lock(); |
| 37 | m.Create(linker_initialized: true); |
| 38 | m.Unlock(); |
| 39 | |
| 40 | m.Lock(); |
| 41 | m.Destroy(); |
| 42 | m.Unlock(); |
| 43 | |
| 44 | fprintf(stderr, format: "DONE\n"); |
| 45 | return 0; |
| 46 | } |
| 47 | |
| 48 | // CHECK-NOT: WARNING: ThreadSanitizer: |
| 49 | // CHECK: DONE |
| 50 |