void
zmonitor_test (bool verbose)
{
printf (" * zmonitor: ");
if (verbose)
printf ("\n");
// @selftest
zctx_t *ctx = zctx_new ();
bool result;
void *sink = zsocket_new (ctx, ZMQ_PULL);
zmonitor_t *sinkmon = zmonitor_new (ctx,
sink, ZMQ_EVENT_LISTENING | ZMQ_EVENT_ACCEPTED);
zmonitor_set_verbose (sinkmon, verbose);
// Check sink is now listening
int port_nbr = zsocket_bind (sink, "tcp://127.0.0.1:*");
assert (port_nbr != -1);
result = s_check_event (sinkmon, ZMQ_EVENT_LISTENING);
assert (result);
void *source = zsocket_new (ctx, ZMQ_PUSH);
zmonitor_t *sourcemon = zmonitor_new (ctx,
source, ZMQ_EVENT_CONNECTED | ZMQ_EVENT_DISCONNECTED);
zmonitor_set_verbose (sourcemon, verbose);
zsocket_connect (source, "tcp://127.0.0.1:%d", port_nbr);
// Check source connected to sink
result = s_check_event (sourcemon, ZMQ_EVENT_CONNECTED);
assert (result);
// Check sink accepted connection
result = s_check_event (sinkmon, ZMQ_EVENT_ACCEPTED);
assert (result);
// Destroy sink to trigger a disconnect event on the source
// PH: disabled since this causes an access violation in
// zmonitor_destroy as the socket is no longer valid.
// zsocket_destroy (ctx, sink);
// result = s_check_event (sourcemon, ZMQ_EVENT_DISCONNECTED);
// assert (result);
zmonitor_destroy (&sinkmon);
zmonitor_destroy (&sourcemon);
zctx_destroy (&ctx);
// @end
printf ("OK\n");
}
zmonitor_t *
zmonitor_new (zctx_t *ctx, void *socket, int events)
{
zmonitor_t *self = (zmonitor_t *) zmalloc (sizeof (zmonitor_t));
assert (self);
// Start background agent to connect to the inproc monitor socket
assert (ctx);
self->pipe = zthread_fork (ctx, s_agent_task, NULL);
if (self->pipe) {
self->socket = socket;
// Register a monitor endpoint on the socket
char *monitor_endpoint = (char *) zmalloc (100);
sprintf (monitor_endpoint, "inproc://zmonitor-%p", self->socket);
int rc = zmq_socket_monitor (self->socket, monitor_endpoint, events);
assert (rc == 0);
// Configure backend agent with monitor endpoint
zstr_sendf (self->pipe, "%s", monitor_endpoint);
free (monitor_endpoint);
char *status = zstr_recv (self->pipe);
if (strneq (status, "OK"))
zmonitor_destroy (&self);
zstr_free (&status);
}
else {
free (self);
self = NULL;
}
return self;
}