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Merge pull request #451 from gummif/gfa/poller-size

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Problem: Poller size function missing
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Simon Giesecke 2020-11-25 10:00:04 +01:00 committed by GitHub
commit 18db4568f9
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2 changed files with 23 additions and 0 deletions
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14
tests/poller.cpp
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@ -133,6 +133,20 @@ TEST_CASE("poller wait with no handlers throws", "[poller]")
const zmq::error_t&);
}
#if ZMQ_VERSION >= ZMQ_MAKE_VERSION(4, 3, 3)
TEST_CASE("poller add/remove size checks", "[poller]")
{
zmq::context_t context;
zmq::socket_t socket{context, zmq::socket_type::router};
zmq::poller_t<> poller;
CHECK(poller.size() == 0);
poller.add(socket, zmq::event_flags::pollin);
CHECK(poller.size() == 1);
CHECK_NOTHROW(poller.remove(socket));
CHECK(poller.size() == 0);
}
#endif
TEST_CASE("poller remove unregistered throws", "[poller]")
{
zmq::context_t context;

9
zmq.hpp
View File

@ -2654,6 +2654,15 @@ template<typename T = no_user_data> class poller_t
throw error_t();
}
#if ZMQ_VERSION >= ZMQ_MAKE_VERSION(4, 3, 3)
size_t size() const noexcept
{
int rc = zmq_poller_size(const_cast<void *>(poller_ptr.get()));
ZMQ_ASSERT(rc >= 0);
return static_cast<size_t>(std::max(rc, 0));
}
#endif
private:
struct destroy_poller_t
{