31 lines
937 B
C++
31 lines
937 B
C++
// RUN: %clang_cc1 -std=c++11 %s -verify -Wthread-safety-analysis
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class Mutex {
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public:
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void Lock() __attribute__((exclusive_lock_function()));
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void Unlock() __attribute__((unlock_function()));
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};
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class A {
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public:
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Mutex mu1, mu2;
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void foo() __attribute__((exclusive_locks_required(mu1))) __attribute__((exclusive_locks_required(mu2))) {}
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template <class T> void bar() __attribute__((exclusive_locks_required(mu1))) __attribute__((exclusive_locks_required(mu2))) {
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foo();
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}
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};
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void f() {
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A a;
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a.mu1.Lock();
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a.mu2.Lock();
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a.bar<int>();
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a.mu2.Unlock();
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a.bar<int>(); // expected-warning {{calling function 'bar<int>' requires holding mutex 'a.mu2' exclusively}}
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a.mu1.Unlock();
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a.bar<int>(); // expected-warning {{calling function 'bar<int>' requires holding mutex 'a.mu1' exclusively}} \
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expected-warning {{calling function 'bar<int>' requires holding mutex 'a.mu2' exclusively}}
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}
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