41 lines
963 B
C++
41 lines
963 B
C++
#include "thread/event.hpp"
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#include "tap.hpp"
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#include <atomic>
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#include <thread>
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int
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main ()
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{
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cruft::TAP::logger tap;
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// create an event which a thread will wait on. after it's been woken up
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// it will modify the contents of val. this will be tested at a couple of
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// points for consistency.
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//
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// the test isn't 100% deterministic (because we're attempting to create
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// specific timings by just waiting). but it's a decent first check.
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std::atomic<int> val = 0;
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cruft::thread::event a;
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std::thread t ([&] () {
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a.wait ();
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++val;
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});
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// block for hopefully long enough to allow the above thread to change
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// the value of the integer.
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std::this_thread::sleep_for (std::chrono::milliseconds (100));
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tap.expect_eq (val, 0, "waiting actually blocks");
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a.notify_all ();
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t.join ();
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tap.expect_eq (val, 1, "notification released the lock");
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return tap.status ();
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}
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