void nn_pipebase_term(struct nn_pipebase *self)
{
nn_assert_state(self,NN_PIPEBASE_STATE_IDLE);
nn_fsm_event_term(&self->out);
nn_fsm_event_term(&self->in);
nn_fsm_term(&self->fsm);
}
int nn_binproc_create (void *hint, struct nn_epbase **epbase)
{
int rc;
struct nn_binproc *self;
self = nn_alloc (sizeof (struct nn_binproc), "binproc");
alloc_assert (self);
nn_ins_item_init (&self->item, &nn_binproc_vfptr, hint);
nn_fsm_init_root (&self->fsm, nn_binproc_handler, nn_binproc_shutdown,
nn_epbase_getctx (&self->item.epbase));
self->state = NN_BINPROC_STATE_IDLE;
nn_list_init (&self->sinprocs);
/* Start the state machine. */
nn_fsm_start (&self->fsm);
/* Register the inproc endpoint into a global repository. */
rc = nn_ins_bind (&self->item, nn_binproc_connect);
if (nn_slow (rc < 0)) {
nn_list_term (&self->sinprocs);
/* TODO: Now, this is ugly! We are getting the state machine into
the idle state manually. How should it be done correctly? */
self->fsm.state = 1;
nn_fsm_term (&self->fsm);
nn_ins_item_term (&self->item);
nn_free (self);
return rc;
}
*epbase = &self->item.epbase;
return 0;
}
int nn_ep_init (struct nn_ep *self, int src, struct nn_sock *sock, int eid,
struct nn_transport *transport, int bind, const char *addr)
{
int rc;
nn_fsm_init (&self->fsm, nn_ep_handler, nn_ep_shutdown,
src, self, &sock->fsm);
self->state = NN_EP_STATE_IDLE;
self->epbase = NULL;
self->sock = sock;
self->eid = eid;
self->last_errno = 0;
nn_list_item_init (&self->item);
memcpy (&self->options, &sock->ep_template, sizeof(struct nn_ep_options));
/* Store the textual form of the address. */
nn_assert (strlen (addr) <= NN_SOCKADDR_MAX);
strcpy (self->addr, addr);
/* Create transport-specific part of the endpoint. */
if (bind)
rc = transport->bind ((void*) self, &self->epbase);
else
rc = transport->connect ((void*) self, &self->epbase);
/* Endpoint creation failed. */
if (rc < 0) {
nn_list_item_term (&self->item);
nn_fsm_term (&self->fsm);
return rc;
}
return 0;
}
static void nn_surveyor_term (struct nn_surveyor *self)
{
nn_msg_term (&self->tosend);
nn_timer_term (&self->timer);
nn_fsm_term (&self->fsm);
nn_xsurveyor_term (&self->xsurveyor);
}
void nn_streamhdr_term (struct nn_streamhdr *self)
{
nn_assert (self->state == NN_STREAMHDR_STATE_IDLE);
nn_fsm_event_term (&self->done);
nn_timer_term (&self->timer);
nn_fsm_term (&self->fsm);
}
static void nn_req_term (struct nn_req *self)
{
nn_timer_term (&self->timer);
nn_msg_term (&self->reply);
nn_msg_term (&self->request);
nn_fsm_term (&self->fsm);
nn_xreq_term (&self->xreq);
}
void nn_ep_term (struct nn_ep *self)
{
nn_assert_state (self, NN_EP_STATE_IDLE);
self->epbase->vfptr->destroy (self->epbase);
nn_list_item_term (&self->item);
nn_fsm_term (&self->fsm);
}
void nn_req_term (struct nn_req *self)
{
nn_timer_term (&self->task.timer);
nn_task_term (&self->task);
nn_msg_term (&self->task.reply);
nn_msg_term (&self->task.request);
nn_fsm_term (&self->fsm);
nn_xreq_term (&self->xreq);
}
void nn_timer_term (struct nn_timer *self)
{
nn_assert_state (self, NN_TIMER_STATE_IDLE);
nn_fsm_event_term (&self->done);
nn_worker_timer_term (&self->wtimer);
nn_worker_task_term (&self->stop_task);
nn_worker_task_term (&self->start_task);
nn_fsm_term (&self->fsm);
}
static void nn_cinproc_destroy (void *self)
{
struct nn_cinproc *cinproc = self;
nn_list_term (&cinproc->sinprocs);
nn_fsm_term (&cinproc->fsm);
nn_ins_item_term (&cinproc->item);
nn_free (cinproc);
}
void nn_stcp_term(struct nn_stcp *self)
{
nn_assert_state(self,NN_STCP_STATE_IDLE);
nn_fsm_event_term(&self->done);
nn_msg_term(&self->outmsg);
nn_msg_term(&self->inmsg);
nn_pipebase_term(&self->pipebase);
nn_streamhdr_term(&self->streamhdr);
nn_fsm_term(&self->fsm);
}
void nn_sws_term (struct nn_sws *self)
{
nn_assert_state (self, NN_SWS_STATE_IDLE);
nn_fsm_event_term (&self->done);
nn_msg_term (&self->outmsg);
nn_msg_array_term (&self->inmsg_array);
nn_pipebase_term (&self->pipebase);
nn_wshdr_term (&self->wshdr);
nn_fsm_term (&self->fsm);
}
void nn_sipc_term (struct nn_sipc *self)
{
nn_assert (self->state == NN_SIPC_STATE_IDLE);
nn_fsm_event_term (&self->done);
nn_msg_term (&self->outmsg);
nn_msg_term (&self->inmsg);
nn_pipebase_term (&self->pipebase);
nn_streamhdr_term (&self->streamhdr);
nn_fsm_term (&self->fsm);
}
void nn_aipc_term (struct nn_aipc *self)
{
nn_assert (self->state == NN_AIPC_STATE_IDLE);
nn_list_item_term (&self->item);
nn_fsm_event_term (&self->done);
nn_fsm_event_term (&self->accepted);
nn_sipc_term (&self->sipc);
nn_usock_term (&self->usock);
nn_fsm_term (&self->fsm);
}
void nn_aws_term (struct nn_aws *self)
{
nn_assert_state (self, NN_AWS_STATE_IDLE);
nn_list_item_term (&self->item);
nn_fsm_event_term (&self->done);
nn_fsm_event_term (&self->accepted);
nn_sws_term (&self->sws);
nn_usock_term (&self->usock);
nn_fsm_term (&self->fsm);
}
void nn_atcp_term (struct nn_atcp *self)
{
nn_assert_state (self, NN_ATCP_STATE_IDLE);
nn_list_item_term (&self->item);
nn_fsm_event_term (&self->done);
nn_fsm_event_term (&self->accepted);
nn_stcp_term (&self->stcp);
nn_usock_term (&self->usock);
nn_fsm_term (&self->fsm);
}
void nn_slibfabric_term (struct nn_slibfabric *self)
{
nn_assert_state (self, NN_SLIBFABRIC_STATE_IDLE);
nn_fsm_event_term (&self->done);
nn_msg_term (&self->outmsg);
nn_msg_term (&self->inmsg);
nn_pipebase_term (&self->pipebase);
nn_streamhdr_term (&self->streamhdr);
nn_fsm_term (&self->fsm);
}
static void nn_cipc_destroy (void *self)
{
struct nn_cipc *cipc = self;
nn_sipc_term (&cipc->sipc);
nn_backoff_term (&cipc->retry);
nn_usock_term (&cipc->usock);
nn_fsm_term (&cipc->fsm);
nn_free (cipc);
}
int nn_sock_term (struct nn_sock *self)
{
int rc;
int i;
/* NOTE: nn_sock_stop must have already been called. */
/* Some endpoints may still be alive. Here we are going to wait
till they are all closed. This loop is not interruptible, because
making it so would leave a partially cleaned up socket, and we don't
have a way to defer resource deallocation. */
for (;;) {
rc = nn_sem_wait (&self->termsem);
if (nn_slow (rc == -EINTR))
continue;
errnum_assert (rc == 0, -rc);
break;
}
/* Also, wait for all holds on the socket to be released. */
for (;;) {
rc = nn_sem_wait (&self->relesem);
if (nn_slow (rc == -EINTR))
continue;
errnum_assert (rc == 0, -rc);
break;
}
/* Threads that posted the semaphore(s) can still have the ctx locked
for a short while. By simply entering the context and exiting it
immediately we can be sure that any such threads have already
exited the context. */
nn_ctx_enter (&self->ctx);
nn_ctx_leave (&self->ctx);
/* At this point, we can be reasonably certain that no other thread
has any references to the socket. */
nn_fsm_stopped_noevent (&self->fsm);
nn_fsm_term (&self->fsm);
nn_sem_term (&self->termsem);
nn_list_term (&self->sdeps);
nn_list_term (&self->eps);
nn_clock_term (&self->clock);
nn_ctx_term (&self->ctx);
/* Destroy any optsets associated with the socket. */
for (i = 0; i != NN_MAX_TRANSPORT; ++i)
if (self->optsets [i])
self->optsets [i]->vfptr->destroy (self->optsets [i]);
return 0;
}
static void nn_cinproc_destroy (struct nn_epbase *self)
{
struct nn_cinproc *cinproc;
cinproc = nn_cont (self, struct nn_cinproc, item.epbase);
nn_sinproc_term (&cinproc->sinproc);
nn_fsm_term (&cinproc->fsm);
nn_ins_item_term (&cinproc->item);
nn_free (cinproc);
}
static void nn_binproc_destroy (struct nn_epbase *self)
{
struct nn_binproc *binproc;
binproc = nn_cont (self, struct nn_binproc, item.epbase);
nn_list_term (&binproc->sinprocs);
nn_fsm_term (&binproc->fsm);
nn_ins_item_term (&binproc->item);
nn_free (binproc);
}
static void nn_cipc_destroy (struct nn_epbase *self)
{
struct nn_cipc *cipc;
cipc = nn_cont (self, struct nn_cipc, epbase);
nn_sipc_term (&cipc->sipc);
nn_backoff_term (&cipc->retry);
nn_usock_term (&cipc->usock);
nn_fsm_term (&cipc->fsm);
nn_epbase_term (&cipc->epbase);
nn_free (cipc);
}
static void nn_btcp_destroy (struct nn_epbase *self)
{
struct nn_btcp *btcp;
btcp = nn_cont (self, struct nn_btcp, epbase);
nn_assert_state (btcp, NN_BTCP_STATE_IDLE);
nn_list_term (&btcp->atcps);
nn_assert (btcp->atcp == NULL);
nn_usock_term (&btcp->usock);
nn_epbase_term (&btcp->epbase);
nn_fsm_term (&btcp->fsm);
nn_free (btcp);
}
static void nn_bws_destroy (struct nn_epbase *self)
{
struct nn_bws *bws;
bws = nn_cont (self, struct nn_bws, epbase);
nn_assert_state (bws, NN_BWS_STATE_IDLE);
nn_list_term (&bws->awss);
nn_assert (bws->aws == NULL);
nn_usock_term (&bws->usock);
nn_epbase_term (&bws->epbase);
nn_fsm_term (&bws->fsm);
nn_free (bws);
}
static void nn_ctcp_destroy (struct nn_epbase *self)
{
struct nn_ctcp *ctcp;
ctcp = nn_cont (self, struct nn_ctcp, epbase);
nn_dns_term (&ctcp->dns);
nn_stcp_term (&ctcp->stcp);
nn_backoff_term (&ctcp->retry);
nn_usock_term (&ctcp->usock);
nn_fsm_term (&ctcp->fsm);
nn_epbase_term (&ctcp->epbase);
nn_free (ctcp);
}
static void nn_cws_destroy (void *self)
{
struct nn_cws *cws = self;
nn_chunkref_term (&cws->resource);
nn_chunkref_term (&cws->remote_host);
nn_chunkref_term (&cws->nic);
nn_dns_term (&cws->dns);
nn_sws_term (&cws->sws);
nn_backoff_term (&cws->retry);
nn_usock_term (&cws->usock);
nn_fsm_term (&cws->fsm);
nn_free (cws);
}
static void nn_bipc_destroy (struct nn_epbase *self)
{
struct nn_bipc *bipc;
bipc = nn_cont (self, struct nn_bipc, epbase);
nn_assert (bipc->state == NN_BIPC_STATE_IDLE);
nn_list_term (&bipc->aipcs);
nn_assert (bipc->aipc == NULL);
nn_usock_term (&bipc->usock);
nn_epbase_term (&bipc->epbase);
nn_fsm_term (&bipc->fsm);
nn_free (bipc);
}
static void nn_cws_destroy (struct nn_epbase *self)
{
struct nn_cws *cws;
cws = nn_cont (self, struct nn_cws, epbase);
nn_chunkref_term (&cws->resource);
nn_chunkref_term (&cws->remote_host);
nn_chunkref_term (&cws->nic);
nn_dns_term (&cws->dns);
nn_sws_term (&cws->sws);
nn_backoff_term (&cws->retry);
nn_usock_term (&cws->usock);
nn_fsm_term (&cws->fsm);
nn_epbase_term (&cws->epbase);
nn_free (cws);
}
int nn_sock_term (struct nn_sock *self)
{
int rc;
int i;
/* Ask the state machine to start closing the socket. */
nn_ctx_enter (&self->ctx);
nn_fsm_stop (&self->fsm);
nn_ctx_leave (&self->ctx);
/* Shutdown process was already started but some endpoints may still
alive. Here we are going to wait till they are all closed. */
rc = nn_sem_wait (&self->termsem);
if (nn_slow (rc == -EINTR))
return -EINTR;
errnum_assert (rc == 0, -rc);
/* The thread that posted the semaphore can still have the ctx locked
for a short while. By simply entering the context and exiting it
immediately we can be sure that the thread in question have already
exited the context. */
nn_ctx_enter (&self->ctx);
nn_ctx_leave (&self->ctx);
/* Deallocate the resources. */
nn_fsm_stopped_noevent (&self->fsm);
nn_fsm_term (&self->fsm);
nn_sem_term (&self->termsem);
nn_list_term (&self->sdeps);
nn_list_term (&self->eps);
nn_clock_term (&self->clock);
nn_ctx_term (&self->ctx);
/* Destroy any optsets associated with the socket. */
for (i = 0; i != NN_MAX_TRANSPORT; ++i)
if (self->optsets [i])
self->optsets [i]->vfptr->destroy (self->optsets [i]);
return 0;
}
void nn_usock_term (struct nn_usock *self)
{
nn_assert_state (self, NN_USOCK_STATE_IDLE);
if (self->in.batch)
nn_free (self->in.batch);
nn_fsm_event_term (&self->event_error);
nn_fsm_event_term (&self->event_received);
nn_fsm_event_term (&self->event_sent);
nn_fsm_event_term (&self->event_established);
nn_worker_cancel (self->worker, &self->task_recv);
nn_worker_task_term (&self->task_stop);
nn_worker_task_term (&self->task_recv);
nn_worker_task_term (&self->task_send);
nn_worker_task_term (&self->task_accept);
nn_worker_task_term (&self->task_connected);
nn_worker_task_term (&self->task_connecting);
nn_worker_fd_term (&self->wfd);
nn_fsm_term (&self->fsm);
}