forked from OSchip/llvm-project
113 lines
4.5 KiB
C++
113 lines
4.5 KiB
C++
// RUN: %clang_analyze_cc1 -analyzer-checker=alpha.unix.BlockInCriticalSection -std=c++11 -verify %s
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void sleep(int x) {}
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namespace std {
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struct mutex {
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void lock() {}
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void unlock() {}
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};
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}
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void getc() {}
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void fgets() {}
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void read() {}
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void recv() {}
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void pthread_mutex_lock() {}
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void pthread_mutex_trylock() {}
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void pthread_mutex_unlock() {}
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void mtx_lock() {}
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void mtx_timedlock() {}
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void mtx_trylock() {}
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void mtx_unlock() {}
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void testBlockInCriticalSectionWithStdMutex() {
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std::mutex m;
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m.lock();
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sleep(3); // expected-warning {{Call to blocking function 'sleep' inside of critical section}}
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getc(); // expected-warning {{Call to blocking function 'getc' inside of critical section}}
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fgets(); // expected-warning {{Call to blocking function 'fgets' inside of critical section}}
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read(); // expected-warning {{Call to blocking function 'read' inside of critical section}}
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recv(); // expected-warning {{Call to blocking function 'recv' inside of critical section}}
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m.unlock();
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}
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void testBlockInCriticalSectionWithPthreadMutex() {
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pthread_mutex_lock();
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sleep(3); // expected-warning {{Call to blocking function 'sleep' inside of critical section}}
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getc(); // expected-warning {{Call to blocking function 'getc' inside of critical section}}
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fgets(); // expected-warning {{Call to blocking function 'fgets' inside of critical section}}
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read(); // expected-warning {{Call to blocking function 'read' inside of critical section}}
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recv(); // expected-warning {{Call to blocking function 'recv' inside of critical section}}
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pthread_mutex_unlock();
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pthread_mutex_trylock();
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sleep(3); // expected-warning {{Call to blocking function 'sleep' inside of critical section}}
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getc(); // expected-warning {{Call to blocking function 'getc' inside of critical section}}
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fgets(); // expected-warning {{Call to blocking function 'fgets' inside of critical section}}
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read(); // expected-warning {{Call to blocking function 'read' inside of critical section}}
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recv(); // expected-warning {{Call to blocking function 'recv' inside of critical section}}
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pthread_mutex_unlock();
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}
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void testBlockInCriticalSectionC11Locks() {
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mtx_lock();
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sleep(3); // expected-warning {{Call to blocking function 'sleep' inside of critical section}}
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getc(); // expected-warning {{Call to blocking function 'getc' inside of critical section}}
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fgets(); // expected-warning {{Call to blocking function 'fgets' inside of critical section}}
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read(); // expected-warning {{Call to blocking function 'read' inside of critical section}}
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recv(); // expected-warning {{Call to blocking function 'recv' inside of critical section}}
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mtx_unlock();
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mtx_timedlock();
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sleep(3); // expected-warning {{Call to blocking function 'sleep' inside of critical section}}
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getc(); // expected-warning {{Call to blocking function 'getc' inside of critical section}}
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fgets(); // expected-warning {{Call to blocking function 'fgets' inside of critical section}}
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read(); // expected-warning {{Call to blocking function 'read' inside of critical section}}
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recv(); // expected-warning {{Call to blocking function 'recv' inside of critical section}}
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mtx_unlock();
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mtx_trylock();
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sleep(3); // expected-warning {{Call to blocking function 'sleep' inside of critical section}}
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getc(); // expected-warning {{Call to blocking function 'getc' inside of critical section}}
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fgets(); // expected-warning {{Call to blocking function 'fgets' inside of critical section}}
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read(); // expected-warning {{Call to blocking function 'read' inside of critical section}}
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recv(); // expected-warning {{Call to blocking function 'recv' inside of critical section}}
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mtx_unlock();
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}
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void testBlockInCriticalSectionWithNestedMutexes() {
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std::mutex m, n, k;
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m.lock();
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n.lock();
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k.lock();
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sleep(3); // expected-warning {{Call to blocking function 'sleep' inside of critical section}}
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k.unlock();
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sleep(5); // expected-warning {{Call to blocking function 'sleep' inside of critical section}}
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n.unlock();
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sleep(3); // expected-warning {{Call to blocking function 'sleep' inside of critical section}}
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m.unlock();
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sleep(3); // no-warning
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}
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void f() {
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sleep(1000); // expected-warning {{Call to blocking function 'sleep' inside of critical section}}
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}
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void testBlockInCriticalSectionInterProcedural() {
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std::mutex m;
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m.lock();
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f();
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m.unlock();
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}
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void testBlockInCriticalSectionUnexpectedUnlock() {
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std::mutex m;
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m.unlock();
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sleep(1); // no-warning
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m.lock();
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sleep(1); // expected-warning {{Call to blocking function 'sleep' inside of critical section}}
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}
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