| 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 fds[2]; |
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| 5 | |
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| 6 | void *ThreadCreatePipe(void *x) { |
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| 7 | pipe(pipedes: fds); |
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| 8 | return NULL; |
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| 9 | } |
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| 10 | |
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| 11 | void *ThreadDummy(void *x) { |
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| 12 | return NULL; |
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| 13 | } |
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| 14 | |
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| 15 | void *ThreadWrite(void *x) { |
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| 16 | write(fd: fds[1], buf: "a" , n: 1); |
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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 | void *ThreadClose(void *x) { |
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| 22 | barrier_wait(barrier: &barrier); |
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| 23 | close(fd: fds[0]); |
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| 24 | close(fd: fds[1]); |
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| 25 | return NULL; |
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| 26 | } |
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| 27 | |
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| 28 | int main() { |
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| 29 | barrier_init(barrier: &barrier, count: 2); |
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| 30 | pthread_t t_create; |
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| 31 | pthread_create(newthread: &t_create, NULL, start_routine: ThreadCreatePipe, NULL); |
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| 32 | pthread_join(th: t_create, NULL); |
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| 33 | |
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| 34 | for (int i = 0; i < 100; i++) { |
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| 35 | pthread_t t_dummy; |
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| 36 | pthread_create(newthread: &t_dummy, NULL, start_routine: ThreadDummy, NULL); |
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| 37 | pthread_join(th: t_dummy, NULL); |
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| 38 | } |
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| 39 | |
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| 40 | pthread_t t[2]; |
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| 41 | pthread_create(newthread: &t[0], NULL, start_routine: ThreadWrite, NULL); |
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| 42 | pthread_create(newthread: &t[1], NULL, start_routine: ThreadClose, NULL); |
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| 43 | pthread_join(th: t[0], NULL); |
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| 44 | pthread_join(th: t[1], NULL); |
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| 45 | } |
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| 46 | |
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| 47 | // CHECK-NOT: CHECK failed |
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| 48 | // CHECK: WARNING: ThreadSanitizer: data race |
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| 49 | // CHECK: Write of size 8 |
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| 50 | // CHECK: #0 close |
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| 51 | // CHECK: #1 ThreadClose |
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| 52 | // CHECK: Previous read of size 8 |
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| 53 | // CHECK: #0 write |
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| 54 | // CHECK: #1 ThreadWrite |
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| 55 | |
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