43 lines
1.2 KiB
C++
43 lines
1.2 KiB
C++
void test_concurrent_push_and_pop_on_empty_queue()
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{
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threadsafe_queue<int> q;
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std::promise<void> go,push_ready,pop_ready;
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std::shared_future<void> ready(go.get_future());
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std::future<void> push_done;
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std::future<int> pop_done;
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try
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{
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push_done=std::async(std::launch::async,
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[&q,ready,&push_ready]()
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{
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push_ready.set_value();
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ready.wait();
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q.push(42);
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}
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);
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pop_done=std::async(std::launch::async,
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[&q,ready,&pop_ready]()
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{
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pop_ready.set_value();
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ready.wait();
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return q.pop();
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}
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);
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push_ready.get_future().wait();
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pop_ready.get_future().wait();
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go.set_value();
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push_done.get();
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assert(pop_done.get()==42);
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assert(q.empty());
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}
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catch(...)
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{
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go.set_value();
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throw;
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}
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}
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