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da31917f4f
Relicense permission collected from all relevant authors as tallied at: https://github.com/rlenferink/libzmq-relicense/blob/master/checklist.md The relicense grants are collected under RELICENSE/ and will be moved to the above repository in a later commit. Fixes https://github.com/zeromq/libzmq/issues/2376
239 lines
9.2 KiB
C++
239 lines
9.2 KiB
C++
/* SPDX-License-Identifier: MPL-2.0 */
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#include "testutil.hpp"
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#include "testutil_unity.hpp"
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#include <string.h>
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SETUP_TEARDOWN_TESTCONTEXT
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static const int SERVER = 0;
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static const int CLIENT = 1;
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struct test_message_t
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{
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int turn;
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const char *text;
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};
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// NOTE: messages are sent without null terminator.
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const test_message_t dialog[] = {
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{CLIENT, "i can haz cheez burger?"},
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{SERVER, "y u no disonnect?"},
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{CLIENT, ""},
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};
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const int steps = sizeof (dialog) / sizeof (dialog[0]);
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bool has_more (void *socket_)
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{
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int more = 0;
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size_t more_size = sizeof (more);
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int rc = zmq_getsockopt (socket_, ZMQ_RCVMORE, &more, &more_size);
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if (rc != 0)
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return false;
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return more != 0;
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}
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void test_stream_disconnect ()
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{
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size_t len = MAX_SOCKET_STRING;
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char bind_endpoint[MAX_SOCKET_STRING];
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char connect_endpoint[MAX_SOCKET_STRING];
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void *sockets[2];
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sockets[SERVER] = test_context_socket (ZMQ_STREAM);
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int enabled = 1;
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TEST_ASSERT_SUCCESS_ERRNO (zmq_setsockopt (
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sockets[SERVER], ZMQ_STREAM_NOTIFY, &enabled, sizeof (enabled)));
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TEST_ASSERT_SUCCESS_ERRNO (zmq_bind (sockets[SERVER], "tcp://0.0.0.0:*"));
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_getsockopt (sockets[SERVER], ZMQ_LAST_ENDPOINT, bind_endpoint, &len));
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// Apparently Windows can't connect to 0.0.0.0. A better fix would be welcome.
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#ifdef ZMQ_HAVE_WINDOWS
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snprintf (connect_endpoint, MAX_SOCKET_STRING * sizeof (char),
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"tcp://127.0.0.1:%s", strrchr (bind_endpoint, ':') + 1);
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#else
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strcpy (connect_endpoint, bind_endpoint);
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#endif
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sockets[CLIENT] = test_context_socket (ZMQ_STREAM);
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TEST_ASSERT_SUCCESS_ERRNO (zmq_setsockopt (
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sockets[CLIENT], ZMQ_STREAM_NOTIFY, &enabled, sizeof (enabled)));
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TEST_ASSERT_SUCCESS_ERRNO (zmq_connect (sockets[CLIENT], connect_endpoint));
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// wait for connect notification
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// Server: Grab the 1st frame (peer routing id).
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zmq_msg_t peer_frame;
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TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_init (&peer_frame));
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TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_recv (&peer_frame, sockets[SERVER], 0));
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TEST_ASSERT_GREATER_THAN_INT (0, zmq_msg_size (&peer_frame));
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TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_close (&peer_frame));
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TEST_ASSERT_TRUE (has_more (sockets[SERVER]));
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// Server: Grab the 2nd frame (actual payload).
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zmq_msg_t data_frame;
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TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_init (&data_frame));
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TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_recv (&data_frame, sockets[SERVER], 0));
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TEST_ASSERT_EQUAL_INT (0, zmq_msg_size (&data_frame));
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TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_close (&data_frame));
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// Client: Grab the 1st frame (peer routing id).
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TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_init (&peer_frame));
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TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_recv (&peer_frame, sockets[CLIENT], 0));
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TEST_ASSERT_GREATER_THAN_INT (0, zmq_msg_size (&peer_frame));
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TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_close (&peer_frame));
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TEST_ASSERT_TRUE (has_more (sockets[CLIENT]));
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// Client: Grab the 2nd frame (actual payload).
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TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_init (&data_frame));
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TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_recv (&data_frame, sockets[CLIENT], 0));
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TEST_ASSERT_EQUAL_INT (0, zmq_msg_size (&data_frame));
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TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_close (&data_frame));
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// Send initial message.
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char blob_data[256];
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size_t blob_size = sizeof (blob_data);
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_getsockopt (sockets[CLIENT], ZMQ_ROUTING_ID, blob_data, &blob_size));
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TEST_ASSERT_GREATER_THAN (0, blob_size);
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zmq_msg_t msg;
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TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_init_size (&msg, blob_size));
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memcpy (zmq_msg_data (&msg), blob_data, blob_size);
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_msg_send (&msg, sockets[dialog[0].turn], ZMQ_SNDMORE));
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TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_close (&msg));
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_msg_init_size (&msg, strlen (dialog[0].text)));
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memcpy (zmq_msg_data (&msg), dialog[0].text, strlen (dialog[0].text));
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_msg_send (&msg, sockets[dialog[0].turn], ZMQ_SNDMORE));
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TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_close (&msg));
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// TODO: make sure this loop doesn't loop forever if something is wrong
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// with the test (or the implementation).
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int step = 0;
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while (step < steps) {
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// Wait until something happens.
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zmq_pollitem_t items[] = {
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{sockets[SERVER], 0, ZMQ_POLLIN, 0},
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{sockets[CLIENT], 0, ZMQ_POLLIN, 0},
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};
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TEST_ASSERT_SUCCESS_ERRNO (zmq_poll (items, 2, 100));
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// Check for data received by the server.
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if (items[SERVER].revents & ZMQ_POLLIN) {
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TEST_ASSERT_EQUAL_INT (CLIENT, dialog[step].turn);
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// Grab the 1st frame (peer routing id).
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zmq_msg_t peer_frame;
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TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_init (&peer_frame));
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_msg_recv (&peer_frame, sockets[SERVER], 0));
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TEST_ASSERT_GREATER_THAN_INT (0, zmq_msg_size (&peer_frame));
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TEST_ASSERT_TRUE (has_more (sockets[SERVER]));
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// Grab the 2nd frame (actual payload).
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zmq_msg_t data_frame;
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TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_init (&data_frame));
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_msg_recv (&data_frame, sockets[SERVER], 0));
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// Make sure payload matches what we expect.
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const char *const data =
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static_cast<const char *> (zmq_msg_data (&data_frame));
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const size_t size = zmq_msg_size (&data_frame);
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// 0-length frame is a disconnection notification. The server
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// should receive it as the last step in the dialogue.
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if (size == 0) {
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++step;
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TEST_ASSERT_EQUAL_INT (steps, step);
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} else {
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TEST_ASSERT_EQUAL_INT (strlen (dialog[step].text), size);
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TEST_ASSERT_EQUAL_STRING_LEN (dialog[step].text, data, size);
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++step;
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TEST_ASSERT_LESS_THAN_INT (steps, step);
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// Prepare the response.
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TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_close (&data_frame));
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_msg_init_size (&data_frame, strlen (dialog[step].text)));
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memcpy (zmq_msg_data (&data_frame), dialog[step].text,
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zmq_msg_size (&data_frame));
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// Send the response.
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_msg_send (&peer_frame, sockets[SERVER], ZMQ_SNDMORE));
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_msg_send (&data_frame, sockets[SERVER], ZMQ_SNDMORE));
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}
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// Release resources.
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TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_close (&peer_frame));
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TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_close (&data_frame));
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}
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// Check for data received by the client.
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if (items[CLIENT].revents & ZMQ_POLLIN) {
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TEST_ASSERT_EQUAL_INT (SERVER, dialog[step].turn);
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// Grab the 1st frame (peer routing id).
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zmq_msg_t peer_frame;
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TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_init (&peer_frame));
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_msg_recv (&peer_frame, sockets[CLIENT], 0));
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TEST_ASSERT_GREATER_THAN_INT (0, zmq_msg_size (&peer_frame));
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TEST_ASSERT_TRUE (has_more (sockets[CLIENT]));
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// Grab the 2nd frame (actual payload).
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zmq_msg_t data_frame;
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TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_init (&data_frame));
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_msg_recv (&data_frame, sockets[CLIENT], 0));
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TEST_ASSERT_GREATER_THAN_INT (0, zmq_msg_size (&data_frame));
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// Make sure payload matches what we expect.
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const char *const data =
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static_cast<const char *> (zmq_msg_data (&data_frame));
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const size_t size = zmq_msg_size (&data_frame);
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TEST_ASSERT_EQUAL_INT (strlen (dialog[step].text), size);
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TEST_ASSERT_EQUAL_STRING_LEN (dialog[step].text, data, size);
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++step;
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// Prepare the response (next line in the dialog).
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TEST_ASSERT_LESS_THAN_INT (steps, step);
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TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_close (&data_frame));
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_msg_init_size (&data_frame, strlen (dialog[step].text)));
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memcpy (zmq_msg_data (&data_frame), dialog[step].text,
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zmq_msg_size (&data_frame));
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// Send the response.
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_msg_send (&peer_frame, sockets[CLIENT], ZMQ_SNDMORE));
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TEST_ASSERT_SUCCESS_ERRNO (
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zmq_msg_send (&data_frame, sockets[CLIENT], ZMQ_SNDMORE));
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// Release resources.
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TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_close (&peer_frame));
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TEST_ASSERT_SUCCESS_ERRNO (zmq_msg_close (&data_frame));
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}
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}
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TEST_ASSERT_EQUAL_INT (steps, step);
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test_context_socket_close (sockets[CLIENT]);
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test_context_socket_close (sockets[SERVER]);
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}
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int main (int, char **)
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{
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setup_test_environment ();
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UNITY_BEGIN ();
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RUN_TEST (test_stream_disconnect);
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return UNITY_END ();
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}
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