forked from OSchip/llvm-project
26 lines
631 B
C
26 lines
631 B
C
// RUN: %clangxx_tsan %s -o %t
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// RUN: TSAN_OPTIONS=detect_deadlocks=1 not %t 2>&1 | FileCheck %s
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#include <pthread.h>
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int main() {
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pthread_mutex_t mu1, mu2;
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pthread_mutex_init(&mu1, NULL);
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pthread_mutex_init(&mu2, NULL);
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// mu1 => mu2
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pthread_mutex_lock(&mu1);
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pthread_mutex_lock(&mu2);
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pthread_mutex_unlock(&mu2);
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pthread_mutex_unlock(&mu1);
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// mu2 => mu1
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pthread_mutex_lock(&mu2);
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pthread_mutex_lock(&mu1);
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// CHECK: ThreadSanitizer: lock-order-inversion (potential deadlock)
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pthread_mutex_unlock(&mu1);
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pthread_mutex_unlock(&mu2);
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pthread_mutex_destroy(&mu1);
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pthread_mutex_destroy(&mu2);
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}
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