| 1 | // RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s |
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| 2 | #include "test.h" |
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| 3 | |
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| 4 | int Global; |
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| 5 | pthread_mutex_t *mtx; |
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| 6 | |
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| 7 | void *Thread1(void *x) { |
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| 8 | barrier_wait(barrier: &barrier); |
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| 9 | pthread_mutex_lock(mutex: mtx); |
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| 10 | Global++; |
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| 11 | pthread_mutex_unlock(mutex: mtx); |
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| 12 | return NULL; |
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| 13 | } |
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| 14 | |
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| 15 | void *Thread2(void *x) { |
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| 16 | Global--; |
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| 17 | barrier_wait(barrier: &barrier); |
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| 18 | return NULL; |
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| 19 | } |
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| 20 | |
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| 21 | int main() { |
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| 22 | barrier_init(barrier: &barrier, count: 2); |
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| 23 | // CHECK: WARNING: ThreadSanitizer: data race |
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| 24 | // CHECK: Write of size 4 at {{.*}} by thread T1 |
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| 25 | // CHECK: (mutexes: write [[M1:M[0-9]+]]): |
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| 26 | // CHECK: Previous write of size 4 at {{.*}} by thread T2: |
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| 27 | // CHECK: Mutex [[M1]] (0x{{.*}}) created at: |
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| 28 | // CHECK: #0 pthread_mutex_init |
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| 29 | // CHECK: #1 main {{.*}}mutexset8.cpp |
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| 30 | mtx = new pthread_mutex_t; |
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| 31 | pthread_mutex_init(mutex: mtx, mutexattr: 0); |
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| 32 | pthread_t t[2]; |
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| 33 | pthread_create(newthread: &t[0], NULL, start_routine: Thread1, NULL); |
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| 34 | pthread_create(newthread: &t[1], NULL, start_routine: Thread2, NULL); |
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| 35 | pthread_join(th: t[0], NULL); |
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| 36 | pthread_join(th: t[1], NULL); |
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| 37 | pthread_mutex_destroy(mutex: mtx); |
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| 38 | delete mtx; |
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| 39 | } |
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| 40 | |
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