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_bipc_handler (struct nn_fsm *self, int src, int type,
void *srcptr)
{
struct nn_bipc *bipc;
struct nn_aipc *aipc;
bipc = nn_cont (self, struct nn_bipc, fsm);
nn_assert(bipc);
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);
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);
}
/******************************************************************************/
/* CLOSING_USOCK state. */
/* usock object was asked to stop but it haven't stopped yet. */
/******************************************************************************/
case NN_BIPC_STATE_CLOSING:
switch (src) {
case NN_BIPC_SRC_USOCK:
switch (type) {
case NN_USOCK_SHUTDOWN:
return;
case NN_USOCK_STOPPED:
nn_backoff_start (&bipc->retry);
bipc->state = NN_BIPC_STATE_WAITING;
return;
default:
nn_fsm_bad_action (bipc->state, src, type);
}
default:
nn_fsm_bad_source (bipc->state, src, type);
}
/******************************************************************************/
/* WAITING state. */
/* Waiting before re-bind is attempted. This way we won't overload */
/* the system by continuous re-bind attemps. */
/******************************************************************************/
case NN_BIPC_STATE_WAITING:
switch (src) {
case NN_BIPC_SRC_RECONNECT_TIMER:
switch (type) {
case NN_BACKOFF_TIMEOUT:
nn_backoff_stop (&bipc->retry);
bipc->state = NN_BIPC_STATE_STOPPING_BACKOFF;
return;
default:
nn_fsm_bad_action (bipc->state, src, type);
}
default:
nn_fsm_bad_source (bipc->state, src, type);
}
/******************************************************************************/
/* STOPPING_BACKOFF state. */
/* backoff object was asked to stop, but it haven't stopped yet. */
/******************************************************************************/
case NN_BIPC_STATE_STOPPING_BACKOFF:
switch (src) {
case NN_BIPC_SRC_RECONNECT_TIMER:
switch (type) {
case NN_BACKOFF_STOPPED:
nn_bipc_start_listening (bipc);
return;
default:
nn_fsm_bad_action (bipc->state, src, type);
}
default:
nn_fsm_bad_source (bipc->state, src, type);
}
/******************************************************************************/
/* Invalid state. */
/******************************************************************************/
default:
nn_fsm_bad_state (bipc->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_bipc_handler (struct nn_fsm *self, int src, int type,
void *srcptr)
{
struct nn_bipc *bipc;
struct nn_aipc *aipc;
bipc = nn_cont (self, struct nn_bipc, fsm);
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);
}
}