libzmq/tests/test_hwm.cpp

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/*
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Copyright (c) 2007-2014 Contributors as noted in the AUTHORS file
This file is part of 0MQ.
0MQ is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
0MQ is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "testutil.hpp"
const int MAX_SENDS = 10000;
enum TestType { BIND_FIRST, CONNECT_FIRST };
int test_defaults ()
{
void *ctx = zmq_ctx_new ();
assert (ctx);
int rc;
// Set up bind socket
void *bind_socket = zmq_socket (ctx, ZMQ_PULL);
assert (bind_socket);
rc = zmq_bind (bind_socket, "inproc://a");
assert (rc == 0);
// Set up connect socket
void *connect_socket = zmq_socket (ctx, ZMQ_PUSH);
assert (connect_socket);
rc = zmq_connect (connect_socket, "inproc://a");
assert (rc == 0);
// Send until we block
int send_count = 0;
while (send_count < MAX_SENDS && zmq_send (connect_socket, NULL, 0, ZMQ_DONTWAIT) == 0)
++send_count;
// Now receive all sent messages
int recv_count = 0;
while (zmq_recv (bind_socket, NULL, 0, ZMQ_DONTWAIT) == 0)
++recv_count;
assert (send_count == recv_count);
// Clean up
rc = zmq_close (connect_socket);
assert (rc == 0);
rc = zmq_close (bind_socket);
assert (rc == 0);
rc = zmq_ctx_term (ctx);
assert (rc == 0);
return send_count;
}
int count_msg (int send_hwm, int recv_hwm, TestType testType)
{
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void *ctx = zmq_ctx_new ();
assert (ctx);
int rc;
void *bind_socket;
void *connect_socket;
if (testType == BIND_FIRST)
{
// Set up bind socket
bind_socket = zmq_socket (ctx, ZMQ_PULL);
assert (bind_socket);
rc = zmq_setsockopt (bind_socket, ZMQ_RCVHWM, &recv_hwm, sizeof (recv_hwm));
assert (rc == 0);
rc = zmq_bind (bind_socket, "inproc://a");
assert (rc == 0);
// Set up connect socket
connect_socket = zmq_socket (ctx, ZMQ_PUSH);
assert (connect_socket);
rc = zmq_setsockopt (connect_socket, ZMQ_SNDHWM, &send_hwm, sizeof (send_hwm));
assert (rc == 0);
rc = zmq_connect (connect_socket, "inproc://a");
assert (rc == 0);
}
else
{
// Set up connect socket
connect_socket = zmq_socket (ctx, ZMQ_PUSH);
assert (connect_socket);
rc = zmq_setsockopt (connect_socket, ZMQ_SNDHWM, &send_hwm, sizeof (send_hwm));
assert (rc == 0);
rc = zmq_connect (connect_socket, "inproc://a");
assert (rc == 0);
// Set up bind socket
bind_socket = zmq_socket (ctx, ZMQ_PULL);
assert (bind_socket);
rc = zmq_setsockopt (bind_socket, ZMQ_RCVHWM, &recv_hwm, sizeof (recv_hwm));
assert (rc == 0);
rc = zmq_bind (bind_socket, "inproc://a");
assert (rc == 0);
}
// Send until we block
int send_count = 0;
while (send_count < MAX_SENDS && zmq_send (connect_socket, NULL, 0, ZMQ_DONTWAIT) == 0)
++send_count;
// Now receive all sent messages
int recv_count = 0;
while (zmq_recv (bind_socket, NULL, 0, ZMQ_DONTWAIT) == 0)
++recv_count;
assert (send_count == recv_count);
// Now it should be possible to send one more.
rc = zmq_send (connect_socket, NULL, 0, 0);
assert (rc == 0);
// Consume the remaining message.
rc = zmq_recv (bind_socket, NULL, 0, 0);
assert (rc == 0);
// Clean up
rc = zmq_close (connect_socket);
assert (rc == 0);
rc = zmq_close (bind_socket);
assert (rc == 0);
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rc = zmq_ctx_term (ctx);
assert (rc == 0);
return send_count;
}
int test_inproc_bind_first (int send_hwm, int recv_hwm)
{
return count_msg(send_hwm, recv_hwm, BIND_FIRST);
}
int test_inproc_connect_first (int send_hwm, int recv_hwm)
{
return count_msg(send_hwm, recv_hwm, CONNECT_FIRST);
}
int test_inproc_connect_and_close_first (int send_hwm, int recv_hwm)
{
void *ctx = zmq_ctx_new ();
assert (ctx);
int rc;
// Set up connect socket
void *connect_socket = zmq_socket (ctx, ZMQ_PUSH);
assert (connect_socket);
rc = zmq_setsockopt (connect_socket, ZMQ_SNDHWM, &send_hwm, sizeof (send_hwm));
assert (rc == 0);
rc = zmq_connect (connect_socket, "inproc://a");
assert (rc == 0);
// Send until we block
int send_count = 0;
while (send_count < MAX_SENDS && zmq_send (connect_socket, NULL, 0, ZMQ_DONTWAIT) == 0)
++send_count;
// Close connect
rc = zmq_close (connect_socket);
assert (rc == 0);
// Set up bind socket
void *bind_socket = zmq_socket (ctx, ZMQ_PULL);
assert (bind_socket);
rc = zmq_setsockopt (bind_socket, ZMQ_RCVHWM, &recv_hwm, sizeof (recv_hwm));
assert (rc == 0);
rc = zmq_bind (bind_socket, "inproc://a");
assert (rc == 0);
// Now receive all sent messages
int recv_count = 0;
while (zmq_recv (bind_socket, NULL, 0, ZMQ_DONTWAIT) == 0)
++recv_count;
assert (send_count == recv_count);
// Clean up
rc = zmq_close (bind_socket);
assert (rc == 0);
rc = zmq_ctx_term (ctx);
assert (rc == 0);
return send_count;
}
int test_inproc_bind_and_close_first (int send_hwm, int /* recv_hwm */)
{
void *ctx = zmq_ctx_new ();
assert (ctx);
int rc;
// Set up bind socket
void *bind_socket = zmq_socket (ctx, ZMQ_PUSH);
assert (bind_socket);
rc = zmq_setsockopt (bind_socket, ZMQ_SNDHWM, &send_hwm, sizeof (send_hwm));
assert (rc == 0);
rc = zmq_bind (bind_socket, "inproc://a");
assert (rc == 0);
// Send until we block
int send_count = 0;
while (send_count < MAX_SENDS && zmq_send (bind_socket, NULL, 0, ZMQ_DONTWAIT) == 0)
++send_count;
// Close bind
rc = zmq_close (bind_socket);
assert (rc == 0);
/* Can't currently do connect without then wiring up a bind as things hang, this needs top be fixed.
// Set up connect socket
void *connect_socket = zmq_socket (ctx, ZMQ_PULL);
assert (connect_socket);
rc = zmq_setsockopt (connect_socket, ZMQ_RCVHWM, &recv_hwm, sizeof (recv_hwm));
assert (rc == 0);
rc = zmq_connect (connect_socket, "inproc://a");
assert (rc == 0);
// Now receive all sent messages
int recv_count = 0;
while (zmq_recv (connect_socket, NULL, 0, ZMQ_DONTWAIT) == 0)
++recv_count;
assert (send_count == recv_count);
*/
// Clean up
//rc = zmq_close (connect_socket);
//assert (rc == 0);
rc = zmq_ctx_term (ctx);
assert (rc == 0);
return send_count;
}
int main (void)
{
setup_test_environment();
int count;
// Default values are 1000 on send and 1000 one receive, so 2000 total
count = test_defaults ();
assert (count == 2000);
// Infinite send and receive buffer
count = test_inproc_bind_first (0, 0);
assert (count == MAX_SENDS);
count = test_inproc_connect_first (0, 0);
assert (count == MAX_SENDS);
// Infinite send buffer
count = test_inproc_bind_first (1, 0);
assert (count == MAX_SENDS);
count = test_inproc_connect_first (1, 0);
assert (count == MAX_SENDS);
// Infinite receive buffer
count = test_inproc_bind_first (0, 1);
assert (count == MAX_SENDS);
count = test_inproc_connect_first (0, 1);
assert (count == MAX_SENDS);
// Send and recv buffers hwm 1, so total that can be queued is 2
count = test_inproc_bind_first (1, 1);
assert (count == 2);
count = test_inproc_connect_first (1, 1);
assert (count == 2);
// Send hwm of 1, send before bind so total that can be queued is 1
count = test_inproc_connect_and_close_first (1, 0);
assert (count == 1);
// Send hwm of 1, send from bind side before connect so total that can be queued should be 1,
// however currently all messages get thrown away before the connect. BUG?
count = test_inproc_bind_and_close_first (1, 0);
//assert (count == 1);
return 0;
}