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42 lines
804 B
42 lines
804 B
4 months ago
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// RUN: %clang_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s
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#define _GNU_SOURCE
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#include "../test.h"
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#include <errno.h>
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int var;
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void *Thread(void *x) {
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barrier_wait(&barrier);
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var = 1;
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return 0;
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}
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static void check(int res) {
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if (res != EBUSY) {
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fprintf(stderr, "Unexpected result of pthread_tryjoin_np: %d\n", res);
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exit(1);
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}
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}
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int main() {
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barrier_init(&barrier, 2);
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pthread_t t;
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pthread_create(&t, 0, Thread, 0);
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check(pthread_tryjoin_np(t, 0));
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barrier_wait(&barrier);
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for (;;) {
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int res = pthread_tryjoin_np(t, 0);
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if (!res)
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break;
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check(res);
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pthread_yield();
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}
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var = 2;
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fprintf(stderr, "PASS\n");
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return 0;
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}
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// CHECK-NOT: WARNING: ThreadSanitizer: data race
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// CHECK-NOT: WARNING: ThreadSanitizer: thread leak
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// CHECK: PASS
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