コード例 #1
0
ファイル: messages.c プロジェクト: storm109212/heartbeat
int
register_fsa_input_adv(
    enum crmd_fsa_cause cause, enum crmd_fsa_input input,
    void *data, long long with_actions,
    gboolean prepend, const char *raised_from)
{
    unsigned  old_len = g_list_length(fsa_message_queue);
    fsa_data_t *fsa_data = NULL;

    last_data_id++;
    CRM_CHECK(raised_from != NULL, raised_from = "<unknown>");

    crm_debug("%s %s FSA input %d (%s) (cause=%s) %s data",
              raised_from, prepend?"prepended":"appended",last_data_id, fsa_input2string(input),
              fsa_cause2string(cause), data?"with":"without");

    if(input == I_WAIT_FOR_EVENT) {
        do_fsa_stall = TRUE;
        crm_debug("Stalling the FSA pending further input: cause=%s",
                  fsa_cause2string(cause));
        if(old_len > 0) {
            crm_warn("%s stalled the FSA with pending inputs",
                     raised_from);
            fsa_dump_queue(LOG_DEBUG);
        }
        if(data == NULL) {
            set_bit_inplace(fsa_actions, with_actions);
            with_actions = A_NOTHING;
            return 0;
        }
        crm_err("%s stalled the FSA with data - this may be broken",
                raised_from);
    }

    if(old_len == 0) {
        last_was_vote = FALSE;
    }

    if(input == I_NULL && with_actions == A_NOTHING /* && data == NULL */) {
        /* no point doing anything */
        crm_err("Cannot add entry to queue: no input and no action");
        return 0;

    } else if(data == NULL) {
        last_was_vote = FALSE;

#if 0
    } else if(last_was_vote && cause == C_HA_MESSAGE && input == I_ROUTER) {
        const char *op = cl_get_string(
                             ((ha_msg_input_t*)data)->msg, F_CRM_TASK);
        if(safe_str_eq(op, CRM_OP_VOTE)) {
            /* It is always safe to treat N successive votes as
             *    a single one
             *
             * If all the discarded votes are more "loosing" than
             *    the first then the result is accurate
             *    (win or loose).
             *
             * If any of the discarded votes are less "loosing"
             *    than the first then we will cast our vote and the
             *    eventual winner will vote us down again (which
             *    even in the case that N=2, is no worse than if we
             *    had not disarded the vote).
             */
            crm_debug_2("Vote compression: %d", old_len);
            return 0;
        }
#endif
    } else if (cause == C_HA_MESSAGE && input == I_ROUTER) {
        const char *op = cl_get_string(
                             ((ha_msg_input_t*)data)->msg, F_CRM_TASK);
        if(safe_str_eq(op, CRM_OP_VOTE)) {
            last_was_vote = TRUE;
            crm_debug_3("Added vote: %d", old_len);
        }

    } else {
        last_was_vote = FALSE;
    }

    crm_malloc0(fsa_data, sizeof(fsa_data_t));
    fsa_data->id        = last_data_id;
    fsa_data->fsa_input = input;
    fsa_data->fsa_cause = cause;
    fsa_data->origin    = raised_from;
    fsa_data->data      = NULL;
    fsa_data->data_type = fsa_dt_none;
    fsa_data->actions   = with_actions;

    if(with_actions != A_NOTHING) {
        crm_debug_3("Adding actions %.16llx to input", with_actions);
    }

    if(data != NULL) {
        switch(cause) {
        case C_FSA_INTERNAL:
        case C_CRMD_STATUS_CALLBACK:
        case C_IPC_MESSAGE:
        case C_HA_MESSAGE:
            crm_debug_3("Copying %s data from %s as a HA msg",
                        fsa_cause2string(cause),
                        raised_from);
            fsa_data->data = copy_ha_msg_input(data);
            fsa_data->data_type = fsa_dt_ha_msg;
            break;

        case C_LRM_OP_CALLBACK:
            crm_debug_3("Copying %s data from %s as lrm_op_t",
                        fsa_cause2string(cause),
                        raised_from);
            fsa_data->data = copy_lrm_op((lrm_op_t*)data);
            fsa_data->data_type = fsa_dt_lrm;
            break;

        case C_CCM_CALLBACK:
            crm_debug_3("Copying %s data from %s as CCM data",
                        fsa_cause2string(cause),
                        raised_from);
            fsa_data->data = copy_ccm_data(data);
            fsa_data->data_type = fsa_dt_ccm;
            break;

        case C_SUBSYSTEM_CONNECT:
        case C_LRM_MONITOR_CALLBACK:
        case C_TIMER_POPPED:
        case C_SHUTDOWN:
        case C_HEARTBEAT_FAILED:
        case C_HA_DISCONNECT:
        case C_ILLEGAL:
        case C_UNKNOWN:
        case C_STARTUP:
            crm_err("Copying %s data (from %s)"
                    " not yet implemented",
                    fsa_cause2string(cause), raised_from);
            exit(1);
            break;
        }
        crm_debug_4("%s data copied",
                    fsa_cause2string(fsa_data->fsa_cause));
    }

    /* make sure to free it properly later */
    if(prepend) {
        crm_debug_2("Prepending input");
        fsa_message_queue = g_list_prepend(fsa_message_queue, fsa_data);
    } else {
        fsa_message_queue = g_list_append(fsa_message_queue, fsa_data);
    }

    crm_debug_2("Queue len: %d", g_list_length(fsa_message_queue));

    fsa_dump_queue(LOG_DEBUG_2);

    if(old_len == g_list_length(fsa_message_queue)) {
        crm_err("Couldnt add message to the queue");
    }

    if(fsa_source) {
        crm_debug_3("Triggering FSA: %s", __FUNCTION__);
        G_main_set_trigger(fsa_source);
    }
    return last_data_id;
}
コード例 #2
0
ファイル: messages.c プロジェクト: fghaas/pacemaker
int
register_fsa_input_adv(enum crmd_fsa_cause cause, enum crmd_fsa_input input,
                       void *data, long long with_actions,
                       gboolean prepend, const char *raised_from)
{
    unsigned old_len = g_list_length(fsa_message_queue);
    fsa_data_t *fsa_data = NULL;

    last_data_id++;
    CRM_CHECK(raised_from != NULL, raised_from = "<unknown>");

    crm_debug_2("%s %s FSA input %d (%s) (cause=%s) %s data",
                raised_from, prepend ? "prepended" : "appended", last_data_id,
                fsa_input2string(input), fsa_cause2string(cause), data ? "with" : "without");

    if (input == I_WAIT_FOR_EVENT) {
        do_fsa_stall = TRUE;
        crm_debug("Stalling the FSA pending further input: cause=%s", fsa_cause2string(cause));
        if (old_len > 0) {
            crm_warn("%s stalled the FSA with pending inputs", raised_from);
            fsa_dump_queue(LOG_DEBUG);
        }
        if (data == NULL) {
            set_bit_inplace(fsa_actions, with_actions);
            with_actions = A_NOTHING;
            return 0;
        }
        crm_err("%s stalled the FSA with data - this may be broken", raised_from);
    }

    if (input == I_NULL && with_actions == A_NOTHING /* && data == NULL */ ) {
        /* no point doing anything */
        crm_err("Cannot add entry to queue: no input and no action");
        return 0;
    }

    crm_malloc0(fsa_data, sizeof(fsa_data_t));
    fsa_data->id = last_data_id;
    fsa_data->fsa_input = input;
    fsa_data->fsa_cause = cause;
    fsa_data->origin = raised_from;
    fsa_data->data = NULL;
    fsa_data->data_type = fsa_dt_none;
    fsa_data->actions = with_actions;

    if (with_actions != A_NOTHING) {
        crm_debug_3("Adding actions %.16llx to input", with_actions);
    }

    if (data != NULL) {
        switch (cause) {
            case C_FSA_INTERNAL:
            case C_CRMD_STATUS_CALLBACK:
            case C_IPC_MESSAGE:
            case C_HA_MESSAGE:
                crm_debug_3("Copying %s data from %s as a HA msg",
                            fsa_cause2string(cause), raised_from);
                CRM_CHECK(((ha_msg_input_t *) data)->msg != NULL,
                          crm_err("Bogus data from %s", raised_from));
                fsa_data->data = copy_ha_msg_input(data);
                fsa_data->data_type = fsa_dt_ha_msg;
                break;

            case C_LRM_OP_CALLBACK:
                crm_debug_3("Copying %s data from %s as lrm_op_t",
                            fsa_cause2string(cause), raised_from);
                fsa_data->data = copy_lrm_op((lrm_op_t *) data);
                fsa_data->data_type = fsa_dt_lrm;
                break;

            case C_CCM_CALLBACK:
            case C_SUBSYSTEM_CONNECT:
            case C_LRM_MONITOR_CALLBACK:
            case C_TIMER_POPPED:
            case C_SHUTDOWN:
            case C_HEARTBEAT_FAILED:
            case C_HA_DISCONNECT:
            case C_ILLEGAL:
            case C_UNKNOWN:
            case C_STARTUP:
                crm_err("Copying %s data (from %s)"
                        " not yet implemented", fsa_cause2string(cause), raised_from);
                exit(1);
                break;
        }
        crm_debug_4("%s data copied", fsa_cause2string(fsa_data->fsa_cause));
    }

    /* make sure to free it properly later */
    if (prepend) {
        crm_debug_2("Prepending input");
        fsa_message_queue = g_list_prepend(fsa_message_queue, fsa_data);
    } else {
        fsa_message_queue = g_list_append(fsa_message_queue, fsa_data);
    }

    crm_debug_2("Queue len: %d", g_list_length(fsa_message_queue));

    fsa_dump_queue(LOG_DEBUG_2);

    if (old_len == g_list_length(fsa_message_queue)) {
        crm_err("Couldnt add message to the queue");
    }

    if (fsa_source) {
        crm_debug_3("Triggering FSA: %s", __FUNCTION__);
        mainloop_set_trigger(fsa_source);
    }
    return last_data_id;
}