コード例 #1
0
ファイル: bipc.c プロジェクト: antmd/nanomsg
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);
}
コード例 #2
0
ファイル: bipc.c プロジェクト: zakharov/nanomsg
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);
    }
}
コード例 #3
0
ファイル: bipc.c プロジェクト: JadeHub/nanomsg
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);
    }
}
コード例 #4
0
ファイル: bipc.c プロジェクト: antmd/nanomsg
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);
    }
}