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https://github.com/zeromq/cppzmq.git
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Merge pull request #221 from kurdybacha/poller-size
Problem: poller move operations not complete
This commit is contained in:
Simon Giesecke
GitHub
commit
2aba0bb3ac
100
tests/poller.cpp
100
tests/poller.cpp
@ -9,6 +9,7 @@
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TEST(poller, create_destroy)
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{
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zmq::poller_t poller;
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ASSERT_TRUE(poller.empty ());
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}
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static_assert(!std::is_copy_constructible<zmq::poller_t>::value, "poller_t should not be copy-constructible");
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@ -16,19 +17,26 @@ static_assert(!std::is_copy_assignable<zmq::poller_t>::value, "poller_t should n
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TEST(poller, move_construct_empty)
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{
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std::unique_ptr<zmq::poller_t> a{new zmq::poller_t};
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zmq::poller_t b = std::move(*a);
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std::unique_ptr<zmq::poller_t> a {new zmq::poller_t};
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ASSERT_TRUE(a->empty ());
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zmq::poller_t b = std::move (*a);
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ASSERT_TRUE(b.empty ());
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ASSERT_EQ(0u, a->size ());
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ASSERT_EQ(0u, b.size ());
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a.reset ();
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}
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TEST(poller, move_assign_empty)
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{
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std::unique_ptr<zmq::poller_t> a{new zmq::poller_t};
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ASSERT_TRUE(a->empty());
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zmq::poller_t b;
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ASSERT_TRUE(b.empty());
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b = std::move(*a);
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ASSERT_EQ(0u, a->size ());
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ASSERT_EQ(0u, b.size ());
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ASSERT_TRUE(a->empty());
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ASSERT_TRUE(b.empty());
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a.reset ();
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}
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@ -39,8 +47,13 @@ TEST(poller, move_construct_non_empty)
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std::unique_ptr<zmq::poller_t> a{new zmq::poller_t};
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a->add(socket, ZMQ_POLLIN, [](short) {});
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zmq::poller_t b = std::move(*a);
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ASSERT_FALSE(a->empty ());
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ASSERT_EQ(1u, a->size ());
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zmq::poller_t b = std::move (*a);
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ASSERT_TRUE(a->empty ());
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ASSERT_EQ(0u, a->size ());
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ASSERT_FALSE(b.empty ());
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ASSERT_EQ(1u, b.size ());
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a.reset ();
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}
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@ -51,10 +64,14 @@ TEST(poller, move_assign_non_empty)
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std::unique_ptr<zmq::poller_t> a{new zmq::poller_t};
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a->add(socket, ZMQ_POLLIN, [](short) {});
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ASSERT_FALSE(a->empty());
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ASSERT_EQ(1u, a->size ());
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zmq::poller_t b;
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b = std::move(*a);
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ASSERT_TRUE(a->empty ());
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ASSERT_EQ(0u, a->size ());
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ASSERT_FALSE(b.empty ());
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ASSERT_EQ(1u, b.size ());
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a.reset ();
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}
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@ -75,6 +92,8 @@ TEST(poller, add_handler_invalid_events_type)
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zmq::poller_t::handler_t handler;
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short invalid_events_type = 2 << 10;
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ASSERT_NO_THROW(poller.add(socket, invalid_events_type, handler));
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ASSERT_FALSE(poller.empty ());
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ASSERT_EQ(1u, poller.size ());
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}
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TEST(poller, add_handler_twice_throws)
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@ -229,7 +248,7 @@ TEST(poller, client_server)
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ASSERT_EQ(events, ZMQ_POLLOUT);
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}
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TEST(poller, poller_add_invalid_socket_throws)
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TEST(poller, add_invalid_socket_throws)
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{
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zmq::context_t context;
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zmq::poller_t poller;
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@ -239,15 +258,17 @@ TEST(poller, poller_add_invalid_socket_throws)
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zmq::error_t);
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}
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TEST(poller, poller_remove_invalid_socket_throws)
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TEST(poller, remove_invalid_socket_throws)
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{
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zmq::context_t context;
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zmq::socket_t socket {context, zmq::socket_type::router};
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zmq::poller_t poller;
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ASSERT_NO_THROW (poller.add (socket, ZMQ_POLLIN, zmq::poller_t::handler_t {}));
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ASSERT_EQ (1u, poller.size ());
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std::vector<zmq::socket_t> sockets;
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sockets.emplace_back (std::move (socket));
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ASSERT_THROW (poller.remove (socket), zmq::error_t);
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ASSERT_EQ (1u, poller.size ());
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}
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TEST(poller, wait_on_added_empty_handler)
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@ -340,6 +361,59 @@ TEST(poller, wait_one_return)
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ASSERT_EQ(count, result);
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}
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TEST(poller, wait_on_move_constructed_poller)
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{
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server_client_setup s;
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ASSERT_NO_THROW (s.client.send ("Hi"));
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zmq::poller_t a;
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zmq::poller_t::handler_t handler;
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ASSERT_NO_THROW (a.add (s.server, ZMQ_POLLIN, handler));
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ASSERT_EQ(1u, a.size ());
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zmq::poller_t b {std::move (a)};
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ASSERT_EQ(1u, b.size ());
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ASSERT_NO_THROW (b.wait (std::chrono::milliseconds {-1}));
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}
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TEST(poller, wait_on_move_assign_poller)
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{
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server_client_setup s;
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ASSERT_NO_THROW (s.client.send ("Hi"));
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zmq::poller_t a;
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zmq::poller_t::handler_t handler;
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ASSERT_NO_THROW (a.add (s.server, ZMQ_POLLIN, handler));
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ASSERT_EQ(1u, a.size ());
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zmq::poller_t b;
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ASSERT_EQ(0u, b.size ());
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b = {std::move (a)};
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ASSERT_EQ(1u, b.size ());
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ASSERT_NO_THROW (b.wait (std::chrono::milliseconds {-1}));
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}
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TEST(poller, received_on_move_construced_poller)
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{
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// Setup server and client
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server_client_setup s;
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int count = 0;
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// Setup poller a
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zmq::poller_t a;
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ASSERT_NO_THROW(a.add(s.server, ZMQ_POLLIN, [&count](short) {
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++count;
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}));
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// client sends message
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ASSERT_NO_THROW(s.client.send("Hi"));
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// wait for message and verify it is received
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a.wait(std::chrono::milliseconds{500});
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ASSERT_EQ(1u, count);
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// Move construct poller b
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zmq::poller_t b{std::move(a)};
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// client sends message again
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ASSERT_NO_THROW(s.client.send("Hi"));
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// wait for message and verify it is received
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b.wait(std::chrono::milliseconds{500});
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ASSERT_EQ(2u, count);
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}
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TEST(poller, remove_from_handler)
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{
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constexpr auto ITER_NO = 10;
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@ -354,9 +428,11 @@ TEST(poller, remove_from_handler)
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for (auto i = 0; i < ITER_NO; ++i) {
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ASSERT_NO_THROW(poller.add(setup_list[i].server, ZMQ_POLLIN, [&,i](short events) {
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ASSERT_EQ(events, ZMQ_POLLIN);
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poller.remove(setup_list[ITER_NO - i -1].server);
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poller.remove(setup_list[ITER_NO-i-1].server);
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ASSERT_EQ(ITER_NO-i-1, poller.size());
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}));
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}
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ASSERT_EQ(ITER_NO, poller.size());
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// Clients send messages
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for (auto & s : setup_list) {
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ASSERT_NO_THROW(s.client.send("Hi"));
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54
zmq.hpp
54
zmq.hpp
@ -1018,36 +1018,19 @@ namespace zmq
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class poller_t
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{
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public:
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poller_t () : poller_ptr (zmq_poller_new ())
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poller_t ()
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{
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if (!poller_ptr)
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throw error_t ();
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}
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~poller_t ()
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{
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if (poller_ptr)
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{
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int rc = zmq_poller_destroy (&poller_ptr);
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assert(rc == 0);
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}
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}
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~poller_t () = default;
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poller_t(const poller_t&) = delete;
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poller_t &operator=(const poller_t&) = delete;
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poller_t(poller_t&& src)
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: poller_ptr(src.poller_ptr)
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, poller_events(std::move (src.poller_events))
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{
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src.poller_ptr = NULL;
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}
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poller_t &operator=(poller_t&& src)
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{
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poller_ptr = src.poller_ptr;
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poller_events = std::move (src.poller_events);
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src.poller_ptr = NULL;
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return *this;
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}
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poller_t(poller_t&& src) = default;
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poller_t &operator=(poller_t&& src) = default;
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using handler_t = std::function<void(short)>;
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@ -1056,7 +1039,7 @@ namespace zmq
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auto it = std::end (handlers);
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auto inserted = false;
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std::tie(it, inserted) = handlers.emplace (socket.ptr, std::make_shared<handler_t> (std::move (handler)));
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if (0 == zmq_poller_add (poller_ptr, socket.ptr, inserted && *(it->second) ? it->second.get() : nullptr, events)) {
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if (0 == zmq_poller_add (poller_ptr.get (), socket.ptr, inserted && *(it->second) ? it->second.get() : nullptr, events)) {
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need_rebuild = true;
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return;
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}
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@ -1068,7 +1051,7 @@ namespace zmq
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void remove (zmq::socket_t &socket)
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{
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if (0 == zmq_poller_remove (poller_ptr, socket.ptr)) {
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if (0 == zmq_poller_remove (poller_ptr.get (), socket.ptr)) {
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handlers.erase (socket.ptr);
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need_rebuild = true;
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return;
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@ -1078,7 +1061,7 @@ namespace zmq
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void modify (zmq::socket_t &socket, short events)
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{
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if (0 != zmq_poller_modify (poller_ptr, socket.ptr, events))
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if (0 != zmq_poller_modify (poller_ptr.get (), socket.ptr, events))
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throw error_t ();
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}
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@ -1095,7 +1078,7 @@ namespace zmq
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}
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need_rebuild = false;
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}
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int rc = zmq_poller_wait_all (poller_ptr, poller_events.data (),
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int rc = zmq_poller_wait_all (poller_ptr.get (), poller_events.data (),
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static_cast<int> (poller_events.size ()),
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static_cast<long>(timeout.count ()));
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if (rc > 0) {
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@ -1116,8 +1099,25 @@ namespace zmq
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throw error_t ();
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}
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bool empty () const
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{
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return handlers.empty ();
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}
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size_t size () const
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{
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return handlers.size ();
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}
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private:
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void *poller_ptr {nullptr};
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std::unique_ptr<void, std::function<void(void*)>> poller_ptr
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{
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zmq_poller_new (),
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[](void *ptr) {
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int rc = zmq_poller_destroy (&ptr);
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ZMQ_ASSERT (rc == 0);
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}
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};
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bool need_rebuild {false};
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std::unordered_map<void*, std::shared_ptr<handler_t>> handlers {};
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std::vector<zmq_poller_event_t> poller_events {};
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