3ab6b2347e
Even sleep(1) lead to episodical flakes on some machines. Use an invisible by tsan barrier to enforce required execution order instead. This makes the tests deterministic and faster. llvm-svn: 226659
38 lines
785 B
C++
38 lines
785 B
C++
// RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
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#include "test.h"
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#if defined(__FreeBSD__)
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#include <pthread_np.h>
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#define pthread_setname_np pthread_set_name_np
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#endif
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int Global;
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void *Thread1(void *x) {
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barrier_wait(&barrier);
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Global++;
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return 0;
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}
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void *Thread2(void *x) {
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pthread_setname_np(pthread_self(), "foobar2");
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Global--;
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barrier_wait(&barrier);
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return 0;
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}
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int main() {
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barrier_init(&barrier, 3);
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pthread_t t[2];
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pthread_create(&t[0], 0, Thread1, 0);
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pthread_create(&t[1], 0, Thread2, 0);
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pthread_setname_np(t[0], "foobar1");
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barrier_wait(&barrier);
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pthread_join(t[0], NULL);
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pthread_join(t[1], NULL);
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}
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// CHECK: WARNING: ThreadSanitizer: data race
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// CHECK: Thread T1 'foobar1'
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// CHECK: Thread T2 'foobar2'
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