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https://github.com/zeromq/libzmq.git
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Merge pull request #77 from ianbarber/master
Backport of test_connect_delay refactor from master
This commit is contained in:
Pieter Hintjens
commit
d6aaa4a7ba
@ -25,114 +25,10 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
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#include <string.h>
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#include <unistd.h>
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#include <string>
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#include <pthread.h>
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#undef NDEBUG
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#include <assert.h>
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static void *server (void *)
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{
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void *socket, *context;
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char buffer[16];
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int rc, val;
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context = zmq_init (1);
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assert (context);
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socket = zmq_socket (context, ZMQ_PULL);
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assert (socket);
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val = 0;
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rc = zmq_setsockopt(socket, ZMQ_LINGER, &val, sizeof(val));
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assert (rc == 0);
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rc = zmq_bind (socket, "ipc:///tmp/recon");
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assert (rc == 0);
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memset (&buffer, 0, sizeof(buffer));
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rc = zmq_recv (socket, &buffer, sizeof(buffer), 0);
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// Intentionally bail out
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rc = zmq_close (socket);
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assert (rc == 0);
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rc = zmq_term (context);
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assert (rc == 0);
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usleep (200000);
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context = zmq_init (1);
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assert (context);
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socket = zmq_socket (context, ZMQ_PULL);
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assert (socket);
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val = 0;
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rc = zmq_setsockopt(socket, ZMQ_LINGER, &val, sizeof(val));
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assert (rc == 0);
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rc = zmq_bind (socket, "ipc:///tmp/recon");
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assert (rc == 0);
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usleep (200000);
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memset (&buffer, 0, sizeof(buffer));
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rc = zmq_recv (socket, &buffer, sizeof(buffer), ZMQ_DONTWAIT);
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assert (rc != -1);
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// Start closing the socket while the connecting process is underway.
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rc = zmq_close (socket);
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assert (rc == 0);
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rc = zmq_term (context);
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assert (rc == 0);
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return NULL;
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}
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static void *worker (void *)
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{
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void *socket, *context;
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int rc, hadone, val;
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context = zmq_init (1);
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assert (context);
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socket = zmq_socket (context, ZMQ_PUSH);
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assert (socket);
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val = 0;
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rc = zmq_setsockopt(socket, ZMQ_LINGER, &val, sizeof(val));
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assert (rc == 0);
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val = 1;
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rc = zmq_setsockopt (socket, ZMQ_DELAY_ATTACH_ON_CONNECT, &val, sizeof(val));
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assert (rc == 0);
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rc = zmq_connect (socket, "ipc:///tmp/recon");
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assert (rc == 0);
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hadone = 0;
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// Not checking RC as some may be -1
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for (int i = 0; i < 6; i++) {
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usleep(200000);
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rc = zmq_send (socket, "hi", 2, ZMQ_DONTWAIT);
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if (rc != -1)
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hadone ++;
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}
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assert (hadone >= 2);
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assert (hadone < 4);
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rc = zmq_close (socket);
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assert (rc == 0);
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rc = zmq_term (context);
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assert (rc == 0);
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return NULL;
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}
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int main (void)
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{
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fprintf (stderr, "test_connect_delay running...\n");
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@ -141,15 +37,23 @@ int main (void)
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char buffer[16];
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int seen = 0;
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// TEST 1.
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// First we're going to attempt to send messages to two
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// pipes, one connected, the other not. We should see
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// the PUSH load balancing to both pipes, and hence half
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// of the messages getting queued, as connect() creates a
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// pipe immediately.
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void *context = zmq_ctx_new();
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assert (context);
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void *to = zmq_socket(context, ZMQ_PULL);
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assert (to);
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// Bind the one valid receiver
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val = 0;
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rc = zmq_setsockopt(to, ZMQ_LINGER, &val, sizeof(val));
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assert (rc == 0);
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rc = zmq_bind(to, "tcp://*:6555");
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rc = zmq_bind(to, "tcp://*:5555");
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assert (rc == 0);
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// Create a socket pushing to two endpoints - only 1 message should arrive.
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@ -158,11 +62,15 @@ int main (void)
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val = 0;
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zmq_setsockopt (from, ZMQ_LINGER, &val, sizeof(val));
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rc = zmq_connect (from, "tcp://localhost:6556");
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// This pipe will not connect
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rc = zmq_connect (from, "tcp://localhost:5556");
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assert (rc == 0);
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rc = zmq_connect (from, "tcp://localhost:6555");
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// This pipe will
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rc = zmq_connect (from, "tcp://localhost:5555");
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assert (rc == 0);
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// We send 10 messages, 5 should just get stuck in the queue
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// for the not-yet-connected pipe
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for (int i = 0; i < 10; ++i)
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{
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std::string message("message ");
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@ -171,7 +79,11 @@ int main (void)
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assert(rc >= 0);
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}
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// Sleep to allow the messages to be delivered
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zmq_sleep (1);
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// We now consume from the connected pipe
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// - we should see just 5
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seen = 0;
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for (int i = 0; i < 10; ++i)
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{
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@ -192,9 +104,17 @@ int main (void)
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rc = zmq_ctx_destroy(context);
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assert (rc == 0);
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// TEST 2
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// This time we will do the same thing, connect two pipes,
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// one of which will succeed in connecting to a bound
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// receiver, the other of which will fail. However, we will
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// also set the delay attach on connect flag, which should
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// cause the pipe attachment to be delayed until the connection
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// succeeds.
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context = zmq_ctx_new();
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fprintf (stderr, " Rerunning with DELAY_ATTACH_ON_CONNECT\n");
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// Bind the valid socket
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to = zmq_socket (context, ZMQ_PULL);
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assert (to);
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rc = zmq_bind (to, "tcp://*:5560");
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@ -212,16 +132,19 @@ int main (void)
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rc = zmq_setsockopt (from, ZMQ_LINGER, &val, sizeof(val));
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assert (rc == 0);
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// Set the key flag
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val = 1;
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rc = zmq_setsockopt (from, ZMQ_DELAY_ATTACH_ON_CONNECT, &val, sizeof(val));
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assert (rc == 0);
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// Connect to the invalid socket
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rc = zmq_connect (from, "tcp://localhost:5561");
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assert (rc == 0);
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// Connect to the valid socket
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rc = zmq_connect (from, "tcp://localhost:5560");
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assert (rc == 0);
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// Send 10 messages, all should be routed to the connected pipe
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for (int i = 0; i < 10; ++i)
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{
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std::string message("message ");
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@ -230,13 +153,16 @@ int main (void)
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assert (rc >= 0);
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}
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// Sleep to allow the messages to be delivered
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zmq_sleep (1);
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// Send 10 messages, all should arrive.
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seen = 0;
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for (int i = 0; i < 10; ++i)
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{
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memset(&buffer, 0, sizeof(buffer));
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rc = zmq_recv (to, &buffer, sizeof(buffer), ZMQ_DONTWAIT);
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// If there is a failed delivery, assert!
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assert (rc != -1);
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}
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@ -249,15 +175,86 @@ int main (void)
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rc = zmq_ctx_destroy(context);
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assert (rc == 0);
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// TEST 3
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// This time we want to validate that the same blocking behaviour
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// occurs with an existing connection that is broken. We will send
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// messaages to a connected pipe, disconnect and verify the messages
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// block. Then we reconnect and verify messages flow again.
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context = zmq_ctx_new();
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void *context2 = zmq_ctx_new();
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fprintf (stderr, " Running DELAY_ATTACH_ON_CONNECT with disconnect\n");
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pthread_t serv, work;
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rc = pthread_create (&serv, NULL, server, NULL);
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to = zmq_socket (context2, ZMQ_PULL);
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assert (to);
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rc = zmq_bind (to, "tcp://*:5560");
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assert (rc == 0);
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rc = pthread_create (&work, NULL, worker, NULL);
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val = 0;
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rc = zmq_setsockopt (to, ZMQ_LINGER, &val, sizeof(val));
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assert (rc == 0);
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pthread_exit(NULL);
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// Create a socket pushing
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from = zmq_socket (context, ZMQ_PUSH);
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assert (from);
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val = 0;
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rc = zmq_setsockopt (from, ZMQ_LINGER, &val, sizeof(val));
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assert (rc == 0);
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val = 1;
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rc = zmq_setsockopt (from, ZMQ_DELAY_ATTACH_ON_CONNECT, &val, sizeof(val));
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assert (rc == 0);
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// Connect to the valid socket socket
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rc = zmq_connect (from, "tcp://localhost:5560");
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assert (rc == 0);
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// Allow connections to stabilise
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zmq_sleep(1);
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// Send a message, should succeed
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std::string message("message ");
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rc = zmq_send (from, message.data(), message.size(), 0);
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assert (rc >= 0);
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rc = zmq_close (to);
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assert (rc == 0);
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rc = zmq_ctx_destroy(context2);
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assert (rc == 0);
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// Give time to process disconnect
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zmq_sleep(1);
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// Send a message, should fail
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rc = zmq_send (from, message.data(), message.size(), ZMQ_DONTWAIT);
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assert (rc == -1);
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context2 = zmq_ctx_new();
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to = zmq_socket (context2, ZMQ_PULL);
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assert (to);
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rc = zmq_bind (to, "tcp://*:5560");
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assert (rc == 0);
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val = 0;
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rc = zmq_setsockopt (to, ZMQ_LINGER, &val, sizeof(val));
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assert (rc == 0);
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// Allow connections to stabilise
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zmq_sleep(1);
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// After the reconnect, should succeed
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rc = zmq_send (from, message.data(), message.size(), 0);
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assert (rc >= 0);
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rc = zmq_close (to);
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assert (rc == 0);
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rc = zmq_close (from);
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assert (rc == 0);
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rc = zmq_ctx_destroy(context);
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assert (rc == 0);
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rc = zmq_ctx_destroy(context2);
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assert (rc == 0);
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}
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