C++ CRM_LOG_ASSERT函数代码示例

static enum cib_errors
cib_cleanup_none(int options, xmlNode ** data, xmlNode ** output)
{
    CRM_LOG_ASSERT(*data == NULL);
    CRM_LOG_ASSERT(*output == NULL);
    return cib_ok;
}

static gboolean
stonith_client_disconnect(
    IPC_Channel *channel, stonith_client_t *stonith_client)
{
    if (channel == NULL) {
	CRM_LOG_ASSERT(stonith_client == NULL);
		
    } else if (stonith_client == NULL) {
	crm_err("No client");
		
    } else {
	CRM_LOG_ASSERT(channel->ch_status != IPC_CONNECT);
	crm_trace("Cleaning up after client disconnect: %s/%s/%s",
		    crm_str(stonith_client->name),
		    stonith_client->channel_name,
		    stonith_client->id);
		
	if(stonith_client->id != NULL) {
	    if(!g_hash_table_remove(client_list, stonith_client->id)) {
		crm_err("Client %s not found in the hashtable",
			stonith_client->name);
	    }
	}		
    }
	
    return FALSE;
}

static int
cib_cleanup_none(int options, xmlNode ** data, xmlNode ** output)
{
    CRM_LOG_ASSERT(*data == NULL);
    CRM_LOG_ASSERT(*output == NULL);
    return pcmk_ok;
}

static int
cib_cleanup_sync(int options, xmlNode ** data, xmlNode ** output)
{
    /* data is non-NULL but doesnt need to be free'd */
    CRM_LOG_ASSERT(*data == NULL);
    CRM_LOG_ASSERT(*output == NULL);
    return pcmk_ok;
}

void
finalize_sync_callback(xmlNode * msg, int call_id, int rc, xmlNode * output, void *user_data)
{
    CRM_LOG_ASSERT(-EPERM != rc);
    clear_bit(fsa_input_register, R_CIB_ASKED);
    if (rc != pcmk_ok) {
        do_crm_log((rc == -pcmk_err_old_data ? LOG_WARNING : LOG_ERR),
                   "Sync from %s failed: %s", (char *)user_data, pcmk_strerror(rc));

        /* restart the whole join process */
        register_fsa_error_adv(C_FSA_INTERNAL, I_ELECTION_DC, NULL, NULL, __FUNCTION__);

    } else if (AM_I_DC && fsa_state == S_FINALIZE_JOIN) {
        set_bit(fsa_input_register, R_HAVE_CIB);
        clear_bit(fsa_input_register, R_CIB_ASKED);

        /* make sure dc_uuid is re-set to us */
        if (check_join_state(fsa_state, __FUNCTION__) == FALSE) {
            crm_debug("Notifying %d clients of join-%d results",
                      crmd_join_phase_count(crm_join_integrated), current_join_id);
            g_hash_table_foreach(crm_peer_cache, finalize_join_for, NULL);
        }

    } else {
        crm_debug("No longer the DC in S_FINALIZE_JOIN: %s/%s",
                  AM_I_DC ? "DC" : "CRMd", fsa_state2string(fsa_state));
    }
}

static void
set_format_string(int method, const char *daemon)
{
    int offset = 0;
    char fmt[FMT_MAX];

    if (method > QB_LOG_STDERR) {
        /* When logging to a file */
        struct utsname res;

        if (uname(&res) == 0) {
            offset +=
                snprintf(fmt + offset, FMT_MAX - offset, "%%t [%d] %s %10s: ", getpid(),
                         res.nodename, daemon);
        } else {
            offset += snprintf(fmt + offset, FMT_MAX - offset, "%%t [%d] %10s: ", getpid(), daemon);
        }
    }

    if (crm_tracing_enabled() && method >= QB_LOG_STDERR) {
        offset += snprintf(fmt + offset, FMT_MAX - offset, "(%%-12f:%%5l %%g) %%-7p: %%n: ");
    } else {
        offset += snprintf(fmt + offset, FMT_MAX - offset, "%%g %%-7p: %%n: ");
    }

    if (method == QB_LOG_SYSLOG) {
        offset += snprintf(fmt + offset, FMT_MAX - offset, "%%b");
    } else {
        offset += snprintf(fmt + offset, FMT_MAX - offset, "\t%%b");
    }

    CRM_LOG_ASSERT(offset > 0);
    qb_log_format_set(method, fmt);
}

static struct crm_remote_header_v0 *
crm_remote_header(crm_remote_t * remote)
{
    struct crm_remote_header_v0 *header = (struct crm_remote_header_v0 *)remote->buffer;
    if(remote->buffer_offset < sizeof(struct crm_remote_header_v0)) {
        return NULL;

    } else if(header->endian != ENDIAN_LOCAL) {
        uint32_t endian = __swab32(header->endian);

        CRM_LOG_ASSERT(endian == ENDIAN_LOCAL);
        if(endian != ENDIAN_LOCAL) {
            crm_err("Invalid message detected, endian mismatch: %lx is neither %lx nor the swab'd %lx",
                    ENDIAN_LOCAL, header->endian, endian);
            return NULL;
        }

        header->id = __swab64(header->id);
        header->flags = __swab64(header->flags);
        header->endian = __swab32(header->endian);

        header->version = __swab32(header->version);
        header->size_total = __swab32(header->size_total);
        header->payload_offset = __swab32(header->payload_offset);
        header->payload_compressed = __swab32(header->payload_compressed);
        header->payload_uncompressed = __swab32(header->payload_uncompressed);
    }

    return header;
}

gboolean
cib_notify_client(gpointer key, gpointer value, gpointer user_data)
{
    const char *type = NULL;
    gboolean do_send = FALSE;

    cib_client_t *client = value;
    xmlNode *update_msg = user_data;

    CRM_CHECK(client != NULL, return TRUE);
    CRM_CHECK(update_msg != NULL, return TRUE);

    if (client == NULL) {
        crm_warn("Skipping NULL client");
        return TRUE;

    } else if (client->ipc == NULL) {
        crm_warn("Skipping client with NULL channel");
        return FALSE;
    }

    type = crm_element_value(update_msg, F_SUBTYPE);

    CRM_LOG_ASSERT(type != NULL);
    if (client->diffs && safe_str_eq(type, T_CIB_DIFF_NOTIFY)) {
        do_send = TRUE;

    } else if (client->replace && safe_str_eq(type, T_CIB_REPLACE_NOTIFY)) {
        do_send = TRUE;

    } else if (client->confirmations && safe_str_eq(type, T_CIB_UPDATE_CONFIRM)) {
        do_send = TRUE;

    } else if (client->pre_notify && safe_str_eq(type, T_CIB_PRE_NOTIFY)) {
        do_send = TRUE;

    } else if (client->post_notify && safe_str_eq(type, T_CIB_POST_NOTIFY)) {
        do_send = TRUE;
    }

    if (do_send) {
        if (client->ipc) {
            if(crm_ipcs_send(client->ipc, update_msg, TRUE) == FALSE) {
                crm_warn("Notification of client %s/%s failed", client->name, client->id);
            }

#ifdef HAVE_GNUTLS_GNUTLS_H
        } else if (client->session) {
            crm_debug("Sent %s notification to client %s/%s", type, client->name, client->id);
            cib_send_remote_msg(client->session, update_msg, client->encrypted);

#endif
        } else {
            crm_err("Unknown transport for %s", client->name);
        }
    }
    return FALSE;
}

void
join_query_callback(xmlNode * msg, int call_id, int rc, xmlNode * output, void *user_data)
{
    xmlNode *local_cib = NULL;
    char *join_id = user_data;
    xmlNode *generation = create_xml_node(NULL, XML_CIB_TAG_GENERATION_TUPPLE);

    CRM_LOG_ASSERT(join_id != NULL);

    query_call_id = 0;

    if (rc == pcmk_ok) {
        local_cib = output;
        CRM_LOG_ASSERT(safe_str_eq(crm_element_name(local_cib), XML_TAG_CIB));
    }

    if (local_cib != NULL) {
        xmlNode *reply = NULL;

        crm_debug("Respond to join offer join-%s", join_id);
        crm_debug("Acknowledging %s as our DC", fsa_our_dc);
        copy_in_properties(generation, local_cib);

        reply = create_request(CRM_OP_JOIN_REQUEST, generation, fsa_our_dc,
                               CRM_SYSTEM_DC, CRM_SYSTEM_CRMD, NULL);

        crm_xml_add(reply, F_CRM_JOIN_ID, join_id);
        if (fsa_our_dc) {
            send_cluster_message(crm_get_peer(0, fsa_our_dc), crm_msg_crmd, reply, TRUE);
        } else {
            crm_warn("No DC for join-%s", join_id);
            send_cluster_message(NULL, crm_msg_crmd, reply, TRUE);
        }
        free_xml(reply);

    } else {
        crm_err("Could not retrieve Generation to attach to our"
                " join acknowledgement: %s", pcmk_strerror(rc));
        register_fsa_error_adv(C_FSA_INTERNAL, I_ERROR, NULL, NULL, __FUNCTION__);
    }

    free(join_id);
    free_xml(generation);
}

crm_client_t *
crm_client_new(qb_ipcs_connection_t * c, uid_t uid_client, gid_t gid_client)
{
    static uid_t uid_server = 0;
    static gid_t gid_cluster = 0;

    crm_client_t *client = NULL;

    CRM_LOG_ASSERT(c);
    if (c == NULL) {
        return NULL;
    }

    if (gid_cluster == 0) {
        uid_server = getuid();
        if(crm_user_lookup(CRM_DAEMON_USER, NULL, &gid_cluster) < 0) {
            static bool have_error = FALSE;
            if(have_error == FALSE) {
                crm_warn("Could not find group for user %s", CRM_DAEMON_USER);
                have_error = TRUE;
            }
        }
    }

    if(gid_cluster != 0 && gid_client != 0) {
        uid_t best_uid = -1; /* Passing -1 to chown(2) means don't change */

        if(uid_client == 0 || uid_server == 0) { /* Someone is priveliged, but the other may not be */
            best_uid = QB_MAX(uid_client, uid_server);
            crm_trace("Allowing user %u to clean up after disconnect", best_uid);
        }

        crm_trace("Giving access to group %u", gid_cluster);
        qb_ipcs_connection_auth_set(c, best_uid, gid_cluster, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP);
    }

    crm_client_init();

    /* TODO: Do our own auth checking, return NULL if unauthorized */
    client = calloc(1, sizeof(crm_client_t));

    client->ipcs = c;
    client->kind = CRM_CLIENT_IPC;
    client->pid = crm_ipcs_client_pid(c);

    client->id = crm_generate_uuid();

    crm_debug("Connecting %p for uid=%d gid=%d pid=%u id=%s", c, uid_client, gid_client, client->pid, client->id);

#if ENABLE_ACL
    client->user = uid2username(uid_client);
#endif

    g_hash_table_insert(client_connections, c, client);
    return client;
}

static int
cib_cleanup_query(int options, xmlNode ** data, xmlNode ** output)
{
    CRM_LOG_ASSERT(*data == NULL);
    if ((options & cib_no_children)
        || safe_str_eq(crm_element_name(*output), "xpath-query")) {
        free_xml(*output);
    }
    return pcmk_ok;
}

void
ipc_proxy_forward_client(crm_client_t *ipc_proxy, xmlNode *xml)
{
    const char *session = crm_element_value(xml, F_LRMD_IPC_SESSION);
    const char *msg_type = crm_element_value(xml, F_LRMD_IPC_OP);
    xmlNode *msg = get_message_xml(xml, F_LRMD_IPC_MSG);
    crm_client_t *ipc_client = crm_client_get_by_id(session);
    int rc = 0;

    if (ipc_client == NULL) {
        xmlNode *msg = create_xml_node(NULL, T_LRMD_IPC_PROXY);
        crm_xml_add(msg, F_LRMD_IPC_OP, "destroy");
        crm_xml_add(msg, F_LRMD_IPC_SESSION, session);
        lrmd_server_send_notify(ipc_proxy, msg);
        free_xml(msg);
        return;
    }

    /* This is an event or response from the ipc provider
     * going to the local ipc client.
     *
     * Looking at the chain of events.
     *
     * -----remote node----------------|---- cluster node ------
     * ipc_client <--1--> this code <--2--> crmd:remote_proxy_cb/remote_proxy_relay_event() <----3----> ipc server
     *
     * This function is receiving a msg from connection 2
     * and forwarding it to connection 1.
     */

    if (safe_str_eq(msg_type, "event")) {
        crm_info("Sending event to %s", ipc_client->id);
        rc = crm_ipcs_send(ipc_client, 0, msg, crm_ipc_server_event);

    } else if (safe_str_eq(msg_type, "response")) {
        int msg_id = 0;

        crm_element_value_int(xml, F_LRMD_IPC_MSG_ID, &msg_id);
        crm_info("Sending response to %d - %s", ipc_client->request_id, ipc_client->id);
        rc = crm_ipcs_send(ipc_client, msg_id, msg, FALSE);

        CRM_LOG_ASSERT(msg_id == ipc_client->request_id);
        ipc_client->request_id = 0;

    } else if (safe_str_eq(msg_type, "destroy")) {
        qb_ipcs_disconnect(ipc_client->ipcs);

    } else {
        crm_err("Unknown ipc proxy msg type %s" , msg_type);
    }

    if (rc < 0) {
        crm_warn("IPC Proxy send to ipc client %s failed, rc = %d", ipc_client->id, rc);
    }
}

/*!
 * \internal
 * \brief Convert xml fence-history to a hash-table like stonith_remote_op_list
 *
 * \param[in] history   Fence-history in xml
 *
 * \return Fence-history as hash-table
 */
static GHashTable *
stonith_xml_history_to_list(xmlNode *history)
{
    xmlNode *xml_op = NULL;
    GHashTable *rv = NULL;

    init_stonith_remote_op_hash_table(&rv);

    CRM_LOG_ASSERT(rv != NULL);

    for (xml_op = __xml_first_child(history); xml_op != NULL;
         xml_op = __xml_next(xml_op)) {
        remote_fencing_op_t *op = NULL;
        char *id = crm_element_value_copy(xml_op, F_STONITH_REMOTE_OP_ID);
        int completed, state;

        if (!id) {
            crm_warn("History to convert to hashtable has no id in entry");
            continue;
        }

        crm_trace("Attaching op %s to hashtable", id);

        op = calloc(1, sizeof(remote_fencing_op_t));

        op->id = id;
        op->target = crm_element_value_copy(xml_op, F_STONITH_TARGET);
        op->action = crm_element_value_copy(xml_op, F_STONITH_ACTION);
        op->originator = crm_element_value_copy(xml_op, F_STONITH_ORIGIN);
        op->delegate = crm_element_value_copy(xml_op, F_STONITH_DELEGATE);
        op->client_name = crm_element_value_copy(xml_op, F_STONITH_CLIENTNAME);
        crm_element_value_int(xml_op, F_STONITH_DATE, &completed);
        op->completed = (time_t) completed;
        crm_element_value_int(xml_op, F_STONITH_STATE, &state);
        op->state = (enum op_state) state;

        g_hash_table_replace(rv, id, op);
        CRM_LOG_ASSERT(g_hash_table_lookup(rv, id) != NULL);
    }

    return rv;
}

int32_t
cib_common_callback(qb_ipcs_connection_t * c, void *data, size_t size, gboolean privileged)
{
    uint32_t id = 0;
    uint32_t flags = 0;
    int call_options = 0;
    crm_client_t *cib_client = crm_client_get(c);
    xmlNode *op_request = crm_ipcs_recv(cib_client, data, size, &id, &flags);

    if (op_request) {
        crm_element_value_int(op_request, F_CIB_CALLOPTS, &call_options);
    }

    if (op_request == NULL) {
        crm_trace("Invalid message from %p", c);
        crm_ipcs_send_ack(cib_client, id, flags, "nack", __FUNCTION__, __LINE__);
        return 0;

    } else if(cib_client == NULL) {
        crm_trace("Invalid client %p", c);
        return 0;
    }

    if (is_set(call_options, cib_sync_call)) {
        CRM_ASSERT(flags & crm_ipc_client_response);
        CRM_LOG_ASSERT(cib_client->request_id == 0);    /* This means the client has two synchronous events in-flight */
        cib_client->request_id = id;    /* Reply only to the last one */
    }

    if (cib_client->name == NULL) {
        const char *value = crm_element_value(op_request, F_CIB_CLIENTNAME);

        if (value == NULL) {
            cib_client->name = crm_itoa(cib_client->pid);
        } else {
            cib_client->name = strdup(value);
        }
    }

    crm_xml_add(op_request, F_CIB_CLIENTID, cib_client->id);
    crm_xml_add(op_request, F_CIB_CLIENTNAME, cib_client->name);

#if ENABLE_ACL
    CRM_ASSERT(cib_client->user != NULL);
    crm_acl_get_set_user(op_request, F_CIB_USER, cib_client->user);
#endif

    crm_log_xml_trace(op_request, "Client[inbound]");

    cib_common_callback_worker(id, flags, op_request, cib_client, privileged);
    free_xml(op_request);

    return 0;
}

static char *
systemd_unit_by_name(const gchar * arg_name, svc_action_t *op)
{
    DBusMessage *msg;
    DBusMessage *reply = NULL;
    DBusPendingCall* pending = NULL;
    char *name = NULL;

/*
  Equivalent to GetUnit if its already loaded
  <method name="LoadUnit">
   <arg name="name" type="s" direction="in"/>
   <arg name="unit" type="o" direction="out"/>
  </method>
 */

    if (systemd_init() == FALSE) {
        return FALSE;
    }

    msg = systemd_new_method(BUS_NAME".Manager", "LoadUnit");
    CRM_ASSERT(msg != NULL);

    name = systemd_service_name(arg_name);
    CRM_LOG_ASSERT(dbus_message_append_args(msg, DBUS_TYPE_STRING, &name, DBUS_TYPE_INVALID));
    free(name);

    if(op == NULL || op->synchronous) {
        const char *unit = NULL;
        char *munit = NULL;
        DBusError error;

        dbus_error_init(&error);
        reply = pcmk_dbus_send_recv(msg, systemd_proxy, &error, op? op->timeout : DBUS_TIMEOUT_USE_DEFAULT);
        dbus_message_unref(msg);

        unit = systemd_loadunit_result(reply, op);
        if(unit) {
            munit = strdup(unit);
        }
        if(reply) {
            dbus_message_unref(reply);
        }
        return munit;
    }

    pending = pcmk_dbus_send(msg, systemd_proxy, systemd_loadunit_cb, op, op->timeout);
    if(pending) {
        services_set_op_pending(op, pending);
    }

    dbus_message_unref(msg);
    return NULL;
}