Mercurial > hg > CbC > CbC_llvm
comparison compiler-rt/test/tsan/fd_pipe_race.cpp @ 150:1d019706d866
LLVM10
| author | anatofuz |
|---|---|
| date | Thu, 13 Feb 2020 15:10:13 +0900 |
| parents | |
| children |
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| 147:c2174574ed3a | 150:1d019706d866 |
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| 1 // RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s | |
| 2 #include "test.h" | |
| 3 | |
| 4 int fds[2]; | |
| 5 | |
| 6 void *Thread1(void *x) { | |
| 7 write(fds[1], "a", 1); | |
| 8 barrier_wait(&barrier); | |
| 9 return NULL; | |
| 10 } | |
| 11 | |
| 12 void *Thread2(void *x) { | |
| 13 barrier_wait(&barrier); | |
| 14 close(fds[0]); | |
| 15 close(fds[1]); | |
| 16 return NULL; | |
| 17 } | |
| 18 | |
| 19 int main() { | |
| 20 barrier_init(&barrier, 2); | |
| 21 pipe(fds); | |
| 22 pthread_t t[2]; | |
| 23 pthread_create(&t[0], NULL, Thread1, NULL); | |
| 24 pthread_create(&t[1], NULL, Thread2, NULL); | |
| 25 pthread_join(t[0], NULL); | |
| 26 pthread_join(t[1], NULL); | |
| 27 } | |
| 28 | |
| 29 // CHECK: WARNING: ThreadSanitizer: data race | |
| 30 // CHECK: Write of size 8 | |
| 31 // CHECK: #0 close | |
| 32 // CHECK: #1 Thread2 | |
| 33 // CHECK: Previous read of size 8 | |
| 34 // CHECK: #0 write | |
| 35 // CHECK: #1 Thread1 | |
| 36 | |
| 37 |