static void nn_cipc_shutdown (struct nn_fsm *self, int src, int type,
NN_UNUSED void *srcptr)
{
struct nn_cipc *cipc;
cipc = nn_cont (self, struct nn_cipc, fsm);
if (nn_slow (src == NN_FSM_ACTION && type == NN_FSM_STOP)) {
if (!nn_sipc_isidle (&cipc->sipc)) {
nn_epbase_stat_increment (&cipc->epbase,
NN_STAT_DROPPED_CONNECTIONS, 1);
nn_sipc_stop (&cipc->sipc);
}
cipc->state = NN_CIPC_STATE_STOPPING_SIPC_FINAL;
}
if (nn_slow (cipc->state == NN_CIPC_STATE_STOPPING_SIPC_FINAL)) {
if (!nn_sipc_isidle (&cipc->sipc))
return;
nn_backoff_stop (&cipc->retry);
nn_usock_stop (&cipc->usock);
cipc->state = NN_CIPC_STATE_STOPPING;
}
if (nn_slow (cipc->state == NN_CIPC_STATE_STOPPING)) {
if (!nn_backoff_isidle (&cipc->retry) ||
!nn_usock_isidle (&cipc->usock))
return;
cipc->state = NN_CIPC_STATE_IDLE;
nn_fsm_stopped_noevent (&cipc->fsm);
nn_epbase_stopped (&cipc->epbase);
return;
}
nn_fsm_bad_state(cipc->state, src, type);
}
static void nn_cinproc_shutdown (struct nn_fsm *self, int src, int type,
NN_UNUSED void *srcptr)
{
struct nn_cinproc *cinproc;
cinproc = nn_cont (self, struct nn_cinproc, fsm);
if (nn_slow (src == NN_FSM_ACTION && type == NN_FSM_STOP)) {
/* First, unregister the endpoint from the global repository of inproc
endpoints. This way, new connections cannot be created anymore. */
nn_ins_disconnect (&cinproc->item);
/* Stop the existing connection. */
nn_sinproc_stop (&cinproc->sinproc);
cinproc->state = NN_CINPROC_STATE_STOPPING;
}
if (nn_slow (cinproc->state == NN_CINPROC_STATE_STOPPING)) {
if (!nn_sinproc_isidle (&cinproc->sinproc))
return;
cinproc->state = NN_CINPROC_STATE_IDLE;
nn_fsm_stopped_noevent (&cinproc->fsm);
nn_epbase_stopped (&cinproc->item.epbase);
return;
}
nn_fsm_bad_state(cinproc->state, src, type);
}
static void nn_btcp_shutdown (struct nn_fsm *self, int src, int type,
void *srcptr)
{
struct nn_btcp *btcp;
struct nn_list_item *it;
struct nn_atcp *atcp;
btcp = nn_cont (self, struct nn_btcp, fsm);
if (nn_slow (src == NN_FSM_ACTION && type == NN_FSM_STOP)) {
nn_atcp_stop (btcp->atcp);
btcp->state = NN_BTCP_STATE_STOPPING_ATCP;
}
if (nn_slow (btcp->state == NN_BTCP_STATE_STOPPING_ATCP)) {
if (!nn_atcp_isidle (btcp->atcp))
return;
nn_atcp_term (btcp->atcp);
nn_free (btcp->atcp);
btcp->atcp = NULL;
nn_usock_stop (&btcp->usock);
btcp->state = NN_BTCP_STATE_STOPPING_USOCK;
}
if (nn_slow (btcp->state == NN_BTCP_STATE_STOPPING_USOCK)) {
if (!nn_usock_isidle (&btcp->usock))
return;
for (it = nn_list_begin (&btcp->atcps);
it != nn_list_end (&btcp->atcps);
it = nn_list_next (&btcp->atcps, it)) {
atcp = nn_cont (it, struct nn_atcp, item);
nn_atcp_stop (atcp);
}
btcp->state = NN_BTCP_STATE_STOPPING_ATCPS;
goto atcps_stopping;
}
if (nn_slow (btcp->state == NN_BTCP_STATE_STOPPING_ATCPS)) {
nn_assert (src == NN_BTCP_SRC_ATCP && type == NN_ATCP_STOPPED);
atcp = (struct nn_atcp *) srcptr;
nn_list_erase (&btcp->atcps, &atcp->item);
nn_atcp_term (atcp);
nn_free (atcp);
/* If there are no more atcp state machines, we can stop the whole
btcp object. */
atcps_stopping:
if (nn_list_empty (&btcp->atcps)) {
btcp->state = NN_BTCP_STATE_IDLE;
nn_fsm_stopped_noevent (&btcp->fsm);
nn_epbase_stopped (&btcp->epbase);
return;
}
return;
}
nn_fsm_bad_action(btcp->state, src, type);
}
static void nn_bipc_shutdown (struct nn_fsm *self, int src, int type,
void *srcptr)
{
struct nn_bipc *bipc;
struct nn_list_item *it;
struct nn_aipc *aipc;
bipc = nn_cont (self, struct nn_bipc, fsm);
if (nn_slow (src == NN_FSM_ACTION && type == NN_FSM_STOP)) {
nn_aipc_stop (bipc->aipc);
bipc->state = NN_BIPC_STATE_STOPPING_AIPC;
}
if (nn_slow (bipc->state == NN_BIPC_STATE_STOPPING_AIPC)) {
if (!nn_aipc_isidle (bipc->aipc))
return;
nn_aipc_term (bipc->aipc);
nn_free (bipc->aipc);
bipc->aipc = NULL;
nn_usock_stop (&bipc->usock);
bipc->state = NN_BIPC_STATE_STOPPING_USOCK;
}
if (nn_slow (bipc->state == NN_BIPC_STATE_STOPPING_USOCK)) {
if (!nn_usock_isidle (&bipc->usock))
return;
for (it = nn_list_begin (&bipc->aipcs);
it != nn_list_end (&bipc->aipcs);
it = nn_list_next (&bipc->aipcs, it)) {
aipc = nn_cont (it, struct nn_aipc, item);
nn_aipc_stop (aipc);
}
bipc->state = NN_BIPC_STATE_STOPPING_AIPCS;
goto aipcs_stopping;
}
if (nn_slow (bipc->state == NN_BIPC_STATE_STOPPING_AIPCS)) {
nn_assert (src == NN_BIPC_SRC_AIPC && type == NN_AIPC_STOPPED);
aipc = (struct nn_aipc *) srcptr;
nn_list_erase (&bipc->aipcs, &aipc->item);
nn_aipc_term (aipc);
nn_free (aipc);
/* If there are no more aipc state machines, we can stop the whole
bipc object. */
aipcs_stopping:
if (nn_list_empty (&bipc->aipcs)) {
bipc->state = NN_BIPC_STATE_IDLE;
nn_fsm_stopped_noevent (&bipc->fsm);
nn_epbase_stopped (&bipc->epbase);
return;
}
return;
}
nn_fsm_bad_state(bipc->state, src, type);
}
static void nn_ctcp_shutdown (struct nn_fsm *self, int src, int type,
NN_UNUSED void *srcptr)
{
struct nn_ctcp *ctcp;
ctcp = nn_cont (self, struct nn_ctcp, fsm);
if (nn_slow (src == NN_FSM_ACTION && type == NN_FSM_STOP)) {
if (!nn_stcp_isidle (&ctcp->stcp)) {
nn_epbase_stat_increment (&ctcp->epbase,
NN_STAT_DROPPED_CONNECTIONS, 1);
nn_stcp_stop (&ctcp->stcp);
}
ctcp->state = NN_CTCP_STATE_STOPPING_STCP_FINAL;
}
if (nn_slow (ctcp->state == NN_CTCP_STATE_STOPPING_STCP_FINAL)) {
if (!nn_stcp_isidle (&ctcp->stcp))
return;
nn_backoff_stop (&ctcp->retry);
nn_usock_stop (&ctcp->usock);
nn_dns_stop (&ctcp->dns);
ctcp->state = NN_CTCP_STATE_STOPPING;
}
if (nn_slow (ctcp->state == NN_CTCP_STATE_STOPPING)) {
if (!nn_backoff_isidle (&ctcp->retry) ||
!nn_usock_isidle (&ctcp->usock) ||
!nn_dns_isidle (&ctcp->dns))
return;
ctcp->state = NN_CTCP_STATE_IDLE;
nn_fsm_stopped_noevent (&ctcp->fsm);
nn_epbase_stopped (&ctcp->epbase);
return;
}
nn_fsm_bad_state (ctcp->state, src, type);
}
static void nn_cipc_handler (struct nn_fsm *self, int src, int type,
void *srcptr)
{
struct nn_cipc *cipc;
cipc = nn_cont (self, struct nn_cipc, fsm);
/******************************************************************************/
/* STOP procedure. */
/******************************************************************************/
if (nn_slow (src == NN_FSM_ACTION && type == NN_FSM_STOP)) {
nn_sipc_stop (&cipc->sipc);
cipc->state = NN_CIPC_STATE_STOPPING_SIPC_FINAL;
}
if (nn_slow (cipc->state == NN_CIPC_STATE_STOPPING_SIPC_FINAL)) {
if (!nn_sipc_isidle (&cipc->sipc))
return;
nn_backoff_stop (&cipc->retry);
nn_usock_stop (&cipc->usock);
cipc->state = NN_CIPC_STATE_STOPPING;
}
if (nn_slow (cipc->state == NN_CIPC_STATE_STOPPING)) {
if (!nn_backoff_isidle (&cipc->retry) ||
!nn_usock_isidle (&cipc->usock))
return;
cipc->state = NN_CIPC_STATE_IDLE;
nn_fsm_stopped_noevent (&cipc->fsm);
nn_epbase_stopped (&cipc->epbase);
return;
}
switch (cipc->state) {
/******************************************************************************/
/* IDLE state. */
/* The state machine wasn't yet started. */
/******************************************************************************/
case NN_CIPC_STATE_IDLE:
switch (src) {
case NN_FSM_ACTION:
switch (type) {
case NN_FSM_START:
nn_cipc_start_connecting (cipc);
return;
default:
nn_fsm_bad_action (cipc->state, src, type);
}
default:
nn_fsm_bad_source (cipc->state, src, type);
}
/******************************************************************************/
/* CONNECTING state. */
/* Non-blocking connect is under way. */
/******************************************************************************/
case NN_CIPC_STATE_CONNECTING:
switch (src) {
case NN_CIPC_SRC_USOCK:
switch (type) {
case NN_USOCK_CONNECTED:
nn_sipc_start (&cipc->sipc, &cipc->usock);
cipc->state = NN_CIPC_STATE_ACTIVE;
return;
case NN_USOCK_ERROR:
nn_usock_stop (&cipc->usock);
cipc->state = NN_CIPC_STATE_STOPPING_USOCK;
return;
default:
nn_fsm_bad_action (cipc->state, src, type);
}
default:
nn_fsm_bad_source (cipc->state, src, type);
}
/******************************************************************************/
/* ACTIVE state. */
/* Connection is established and handled by the sipc state machine. */
/******************************************************************************/
case NN_CIPC_STATE_ACTIVE:
switch (src) {
case NN_CIPC_SRC_SIPC:
switch (type) {
case NN_SIPC_ERROR:
nn_sipc_stop (&cipc->sipc);
cipc->state = NN_CIPC_STATE_STOPPING_SIPC;
return;
default:
nn_fsm_bad_action (cipc->state, src, type);
}
default:
nn_fsm_bad_source (cipc->state, src, type);
}
/******************************************************************************/
/* STOPPING_SIPC state. */
/* sipc object was asked to stop but it haven't stopped yet. */
/******************************************************************************/
case NN_CIPC_STATE_STOPPING_SIPC:
switch (src) {
case NN_CIPC_SRC_SIPC:
switch (type) {
case NN_SIPC_STOPPED:
nn_usock_stop (&cipc->usock);
cipc->state = NN_CIPC_STATE_STOPPING_USOCK;
return;
default:
nn_fsm_bad_action (cipc->state, src, type);
}
default:
nn_fsm_bad_source (cipc->state, src, type);
}
/******************************************************************************/
/* STOPPING_USOCK state. */
/* usock object was asked to stop but it haven't stopped yet. */
/******************************************************************************/
case NN_CIPC_STATE_STOPPING_USOCK:
switch (src) {
case NN_CIPC_SRC_USOCK:
switch (type) {
case NN_USOCK_STOPPED:
nn_backoff_start (&cipc->retry);
cipc->state = NN_CIPC_STATE_WAITING;
return;
default:
nn_fsm_bad_action (cipc->state, src, type);
}
default:
nn_fsm_bad_source (cipc->state, src, type);
}
/******************************************************************************/
/* WAITING state. */
/* Waiting before re-connection is attempted. This way we won't overload */
/* the system by continuous re-connection attemps. */
/******************************************************************************/
case NN_CIPC_STATE_WAITING:
switch (src) {
case NN_CIPC_SRC_RECONNECT_TIMER:
switch (type) {
case NN_BACKOFF_TIMEOUT:
nn_backoff_stop (&cipc->retry);
cipc->state = NN_CIPC_STATE_STOPPING_BACKOFF;
return;
default:
nn_fsm_bad_action (cipc->state, src, type);
}
default:
nn_fsm_bad_source (cipc->state, src, type);
}
/******************************************************************************/
/* STOPPING_BACKOFF state. */
/* backoff object was asked to stop, but it haven't stopped yet. */
/******************************************************************************/
case NN_CIPC_STATE_STOPPING_BACKOFF:
switch (src) {
case NN_CIPC_SRC_RECONNECT_TIMER:
switch (type) {
case NN_BACKOFF_STOPPED:
nn_cipc_start_connecting (cipc);
return;
default:
nn_fsm_bad_action (cipc->state, src, type);
}
default:
nn_fsm_bad_source (cipc->state, src, type);
}
/******************************************************************************/
/* Invalid state. */
/******************************************************************************/
default:
nn_fsm_bad_state (cipc->state, src, type);
}
}
static void nn_bipc_handler (struct nn_fsm *self, int src, int type,
void *srcptr)
{
struct nn_bipc *bipc;
struct nn_list_item *it;
struct nn_aipc *aipc;
bipc = nn_cont (self, struct nn_bipc, fsm);
/******************************************************************************/
/* STOP procedure. */
/******************************************************************************/
if (nn_slow (src == NN_FSM_ACTION && type == NN_FSM_STOP)) {
nn_aipc_stop (bipc->aipc);
bipc->state = NN_BIPC_STATE_STOPPING_AIPC;
}
if (nn_slow (bipc->state == NN_BIPC_STATE_STOPPING_AIPC)) {
if (!nn_aipc_isidle (bipc->aipc))
return;
nn_aipc_term (bipc->aipc);
nn_free (bipc->aipc);
bipc->aipc = NULL;
nn_usock_stop (&bipc->usock);
bipc->state = NN_BIPC_STATE_STOPPING_USOCK;
}
if (nn_slow (bipc->state == NN_BIPC_STATE_STOPPING_USOCK)) {
if (!nn_usock_isidle (&bipc->usock))
return;
for (it = nn_list_begin (&bipc->aipcs);
it != nn_list_end (&bipc->aipcs);
it = nn_list_next (&bipc->aipcs, it)) {
aipc = nn_cont (it, struct nn_aipc, item);
nn_aipc_stop (aipc);
}
bipc->state = NN_BIPC_STATE_STOPPING_AIPCS;
goto aipcs_stopping;
}
if (nn_slow (bipc->state == NN_BIPC_STATE_STOPPING_AIPCS)) {
nn_assert (src == NN_BIPC_SRC_AIPC && type == NN_AIPC_STOPPED);
aipc = (struct nn_aipc *) srcptr;
nn_list_erase (&bipc->aipcs, &aipc->item);
nn_aipc_term (aipc);
nn_free (aipc);
/* If there are no more aipc state machines, we can stop the whole
bipc object. */
aipcs_stopping:
if (nn_list_empty (&bipc->aipcs)) {
bipc->state = NN_BIPC_STATE_IDLE;
nn_fsm_stopped_noevent (&bipc->fsm);
nn_epbase_stopped (&bipc->epbase);
return;
}
return;
}
switch (bipc->state) {
/******************************************************************************/
/* IDLE state. */
/******************************************************************************/
case NN_BIPC_STATE_IDLE:
switch (src) {
case NN_FSM_ACTION:
switch (type) {
case NN_FSM_START:
nn_bipc_start_listening (bipc);
nn_bipc_start_accepting (bipc);
bipc->state = NN_BIPC_STATE_ACTIVE;
return;
default:
nn_fsm_bad_action (bipc->state, src, type);
}
default:
nn_fsm_bad_source (bipc->state, src, type);
}
/******************************************************************************/
/* ACTIVE state. */
/* The execution is yielded to the aipc state machine in this state. */
/******************************************************************************/
case NN_BIPC_STATE_ACTIVE:
if (srcptr == bipc->aipc) {
switch (type) {
case NN_AIPC_ACCEPTED:
/* Move the newly created connection to the list of existing
connections. */
nn_list_insert (&bipc->aipcs, &bipc->aipc->item,
nn_list_end (&bipc->aipcs));
bipc->aipc = NULL;
/* Start waiting for a new incoming connection. */
nn_bipc_start_accepting (bipc);
return;
default:
nn_fsm_bad_action (bipc->state, src, type);
}
}
/* For all remaining events we'll assume they are coming from one
of remaining child aipc objects. */
nn_assert (src == NN_BIPC_SRC_AIPC);
aipc = (struct nn_aipc*) srcptr;
switch (type) {
case NN_AIPC_ERROR:
nn_aipc_stop (aipc);
return;
case NN_AIPC_STOPPED:
nn_list_erase (&bipc->aipcs, &aipc->item);
nn_aipc_term (aipc);
nn_free (aipc);
return;
default:
nn_fsm_bad_action (bipc->state, src, type);
}
/******************************************************************************/
/* Invalid state. */
/******************************************************************************/
default:
nn_fsm_bad_state (bipc->state, src, type);
}
}
static void nn_bws_shutdown (struct nn_fsm *self, int src, int type,
void *srcptr)
{
struct nn_bws *bws;
struct nn_list_item *it;
struct nn_aws *aws;
bws = nn_cont (self, struct nn_bws, fsm);
if (nn_slow (src == NN_FSM_ACTION && type == NN_FSM_STOP)) {
if (bws->aws) {
nn_aws_stop (bws->aws);
bws->state = NN_BWS_STATE_STOPPING_AWS;
}
else {
bws->state = NN_BWS_STATE_STOPPING_USOCK;
}
}
if (nn_slow (bws->state == NN_BWS_STATE_STOPPING_AWS)) {
if (!nn_aws_isidle (bws->aws))
return;
nn_aws_term (bws->aws);
nn_free (bws->aws);
bws->aws = NULL;
nn_usock_stop (&bws->usock);
bws->state = NN_BWS_STATE_STOPPING_USOCK;
}
if (nn_slow (bws->state == NN_BWS_STATE_STOPPING_USOCK)) {
if (!nn_usock_isidle (&bws->usock))
return;
for (it = nn_list_begin (&bws->awss);
it != nn_list_end (&bws->awss);
it = nn_list_next (&bws->awss, it)) {
aws = nn_cont (it, struct nn_aws, item);
nn_aws_stop (aws);
}
bws->state = NN_BWS_STATE_STOPPING_AWSS;
goto awss_stopping;
}
if (nn_slow (bws->state == NN_BWS_STATE_STOPPING_AWSS)) {
nn_assert (src == NN_BWS_SRC_AWS && type == NN_AWS_STOPPED);
aws = (struct nn_aws *) srcptr;
nn_list_erase (&bws->awss, &aws->item);
nn_aws_term (aws);
nn_free (aws);
/* If there are no more aws state machines, we can stop the whole
bws object. */
awss_stopping:
if (nn_list_empty (&bws->awss)) {
bws->state = NN_BWS_STATE_IDLE;
nn_fsm_stopped_noevent (&bws->fsm);
nn_epbase_stopped (&bws->epbase);
return;
}
return;
}
nn_fsm_bad_action (bws->state, src, type);
}