| 1 | // RUN: %clangxx_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s |
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| 2 | #include <pthread.h> |
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| 3 | #include <stdio.h> |
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| 4 | #include <unistd.h> |
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| 5 | |
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| 6 | int pipes[2]; |
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| 7 | |
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| 8 | void *Thread(void *x) { |
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| 9 | // wait for shutown signal |
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| 10 | while (read(fd: pipes[0], buf: &x, nbytes: 1) != 1) { |
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| 11 | } |
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| 12 | close(fd: pipes[0]); |
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| 13 | close(fd: pipes[1]); |
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| 14 | return 0; |
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| 15 | } |
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| 16 | |
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| 17 | int main() { |
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| 18 | if (pipe(pipedes: pipes)) |
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| 19 | return 1; |
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| 20 | pthread_t t; |
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| 21 | pthread_create(newthread: &t, attr: 0, start_routine: Thread, arg: 0); |
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| 22 | // send shutdown signal |
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| 23 | while (write(fd: pipes[1], buf: &t, n: 1) != 1) { |
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| 24 | } |
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| 25 | pthread_join(th: t, thread_return: 0); |
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| 26 | fprintf(stderr, format: "OK\n" ); |
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| 27 | } |
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| 28 | |
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| 29 | // CHECK-NOT: WARNING: ThreadSanitizer: data race |
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| 30 | // CHECK: OK |
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| 31 | |
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