int pubnub_send(char *p_data)
{
	enum pubnub_res l_response;
	char const *l_responseChannel = "parkingdevice-resp";
	struct Pubnub_UUID uuid;
	struct Pubnub_UUID_String str_uuid;
	pubnub_t *l_publish = pubnub_alloc();
	if (NULL == l_publish) 
	{
		printf("Failed to allocate Pubnub context!\n");
		return -1;
	}
	pubnub_init(l_publish, pub_key, sub_key);

	if (0 != pubnub_generate_uuid_v4_random(&uuid)) 
	{
		pubnub_set_uuid(l_publish, "zeka-peka-iz-jendeka");
	}
	else 
	{
		str_uuid = pubnub_uuid_to_string(&uuid);
		pubnub_set_uuid(l_publish, str_uuid.uuid);
		printf("Generated UUID: %s\n", str_uuid.uuid);
	}

	pubnub_set_auth(l_publish, "danaske");
	puts("Publishing...");
	l_response = pubnub_publish(l_publish, l_responseChannel, p_data);
	if(l_response != PNR_STARTED) 
	{
		printf("pubnub_publish() returned unexpected: %d\n", l_response);
		pubnub_free(l_publish);
		return -1;
	}
	l_response = pubnub_await(l_publish);
	if (l_response == PNR_STARTED) 
	{
		printf("pubnub_await() returned unexpected: PNR_STARTED(%d)\n", l_response);
		pubnub_free(l_publish);
		return -1;
	}
	if (PNR_OK == l_response) {
	printf("Published! Response from Pubnub: %s\n", pubnub_last_publish_result(l_publish));
	return 0;
	}
	else if (PNR_PUBLISH_FAILED == l_response) {
	printf("Published failed on Pubnub, description: %s\n", pubnub_last_publish_result(l_publish));
	}
	else {
	printf("Publishing failed with code: %d\n", l_response);
	}
	pubnub_free(l_publish);
	return 0;
}
int main()
{
    enum pubnub_res pbresult;
    pubnub_t *ctx = pubnub_alloc();
    if (NULL == ctx) {
        puts("Couldn't allocate a Pubnub context");
        return -1;
    }
    
    char pubkey[] = "pub-c-9e002851-755d-4197-9037-cfe897af871d";
	char subkey[] = "sub-c-82c22366-19a3-11e6-9a17-0619f8945a4f";
	char chnlname[] = "hello_world";
	
	printf("pubnub info\npubkey %s\nsubkey %s\nchnlname %s\n",pubkey, subkey, chnlname);
	fflush(stdout);
    pubnub_init(ctx, pubkey, subkey);

    pubnub_subscribe(ctx, chnlname, NULL);
    pbresult = pubnub_await(ctx);
    if (pbresult != PNR_OK) {
        printf("Failed to subscribe, error %d\n", pbresult);
        pubnub_free(ctx);
        return -1;
    }

    while (1) {
    	fflush(stdout);
        pubnub_subscribe(ctx, chnlname, NULL);
        pbresult = pubnub_await(ctx);
        if (pbresult != PNR_OK) {
            printf("Failed to subscribe, error %d\n", pbresult);
            pubnub_free(ctx);
            return -1;
        }
        else {
            char const *msg = pubnub_get(ctx);
            while (msg != NULL) {
                
                // printf("Got message: %s\n", msg);
                put_data_buf(msg);
                msg = pubnub_get(ctx);
                // printf("Got message2: %s\n", msg);
            }
        }
    }
    pubnub_free(ctx);
    return 0;
}
static void srand_from_pubnub(char const* pubkey, char const* keysub)
{
    pubnub_t* pbp = pubnub_alloc();
    if (pbp != NULL) {
        pubnub_init(pbp, pubkey, keysub);
        srand_from_pubnub_time(pbp);
        pubnub_free(pbp);
    }
}
Exemple #4
0
int pubnub_publishStatus(char *p_data){
	enum pubnub_res res;
    char const *chan = "sensorStatus-resp";
    pubnub_t *pbp = pubnub_alloc();

    if (NULL == pbp) {
        printf("Failed to allocate Pubnub context!\n");
        return -1;
    }
    pubnub_init(pbp, g_pub_key,g_sub_key);
    pubnub_set_transaction_timeout(pbp, PUBNUB_DEFAULT_NON_SUBSCRIBE_TIMEOUT);
    /* Leave this commented out to use the default - which is
       blocking I/O on most platforms. Uncomment to use non-
       blocking I/O.
    */
	//    pubnub_set_non_blocking_io(pbp);
    generate_uuid(pbp);
    pubnub_set_auth(pbp, "danaske");
    res = pubnub_publish(pbp, chan, p_data);
    if (res != PNR_STARTED) {
        printf("pubnub_publish() returned unexpected: %d\n", res);
        pubnub_free(pbp);
        return -1;
    }
    res = pubnub_await(pbp);
    if (res == PNR_STARTED) {
        printf("pubnub_await() returned unexpected: PNR_STARTED(%d)\n", res);
        pubnub_free(pbp);
        return -1;
    }
    if (PNR_OK == res) {
        //printf("Published! Response from Pubnub: %s\n", pubnub_last_publish_result(pbp));
    }
    else if (PNR_PUBLISH_FAILED == res) {
        printf("Published failed on Pubnub, description: %s\n", pubnub_last_publish_result(pbp));
    }
    else {
        printf("Publishing failed with code: %d\n", res);
    }
    return 0;
}
int pubnub_free_with_timeout(pubnub_t* pbp, unsigned millisec)
{
    const clock_t t0 = clock();
    const clock_t clocks_till_timeout = (millisec * CLOCKS_PER_SEC) / 1000;

    PUBNUB_ASSERT_OPT(pbp != NULL);

    while (pubnub_free(pbp) != 0) {
        const clock_t elapsed = clock() - t0;
        if (elapsed  > clocks_till_timeout) {
            PUBNUB_LOG_ERROR("Failed to free the context in %u milli seconds\n", millisec);
            return -1;
        }
    }
    PUBNUB_LOG_TRACE("Freed the context in %lf seconds\n",  ((float)clock() - t0) / CLOCKS_PER_SEC);

    return 0;
}
int main()
{
    char const *msg;
    enum pubnub_res res;
    char const *chan = "hello_world";
    pubnub_t *pbp = pubnub_alloc();

    if (NULL == pbp) {
        printf("Failed to allocate Pubnub context!\n");
        return -1;
    }
    pubnub_init(pbp, "demo", "demo");

    pubnub_set_transaction_timeout(pbp, PUBNUB_DEFAULT_NON_SUBSCRIBE_TIMEOUT);
    
    /* Leave this commented out to use the default - which is
       blocking I/O on most platforms. Uncomment to use non-
       blocking I/O.
    */
//    pubnub_set_non_blocking_io(pbp);

    generate_uuid(pbp);

    pubnub_set_auth(pbp, "danaske");

    puts("Publishing...");
    res = pubnub_publish(pbp, chan, "\"Hello world from sync!\"");
    if (res != PNR_STARTED) {
        printf("pubnub_publish() returned unexpected: %d\n", res);
        pubnub_free(pbp);
        return -1;
    }
    res = pubnub_await(pbp);
    if (res == PNR_STARTED) {
        printf("pubnub_await() returned unexpected: PNR_STARTED(%d)\n", res);
        pubnub_free(pbp);
        return -1;
    }
    if (PNR_OK == res) {
        printf("Published! Response from Pubnub: %s\n", pubnub_last_publish_result(pbp));
    }
    else if (PNR_PUBLISH_FAILED == res) {
        printf("Published failed on Pubnub, description: %s\n", pubnub_last_publish_result(pbp));
    }
    else {
        printf("Publishing failed with code: %d\n", res);
    }

    puts("Subscribing...");
    res = pubnub_subscribe(pbp, chan, NULL);
    if (res != PNR_STARTED) {
        printf("pubnub_subscribe() returned unexpected: %d\n", res);
        pubnub_free(pbp);
        return -1;
    }
    res = pubnub_await(pbp);
    if (res == PNR_STARTED) {
        printf("pubnub_await() returned unexpected: PNR_STARTED(%d)\n", res);
        pubnub_free(pbp);
        return -1;
    }

    if (PNR_OK == res) {
        puts("Subscribed!");
    }
    else {
        printf("Subscribing failed with code: %d\n", res);
    }

    res = pubnub_subscribe(pbp, chan, NULL);
    if (res != PNR_STARTED) {
        printf("pubnub_subscribe() returned unexpected: %d\n", res);
        pubnub_free(pbp);
        return -1;
    }
    res = pubnub_await(pbp);
    if (res == PNR_STARTED) {
        printf("pubnub_await() returned unexpected: PNR_STARTED(%d)\n", res);
        pubnub_free(pbp);
        return -1;
    }

    if (PNR_OK == res) {
        puts("Subscribed! Got messages:");
        for (;;) {
            msg = pubnub_get(pbp);
            if (NULL == msg) {
                break;
            }
            puts(msg);
        }
    }
    else {
        printf("Subscribing failed with code: %d\n", res);
    }

    puts("Getting time...");
    res = pubnub_time(pbp);
    if (res != PNR_STARTED) {
        printf("pubnub_time() returned unexpected: %d\n", res);
        pubnub_free(pbp);
        return -1;
    }
    res = pubnub_await(pbp);
    if (res == PNR_STARTED) {
        printf("pubnub_await() returned unexpected: PNR_STARTED(%d)\n", res);
        pubnub_free(pbp);
        return -1;
    }

    if (PNR_OK == res) {
        printf("Gotten time: %s; last time token=%s\n", pubnub_get(pbp), pubnub_last_time_token(pbp));
    }
    else {
        printf("Getting time failed with code: %d\n", res);
    }

    puts("Getting history with include_token...");
    res = pubnub_history(pbp, chan, 10, true);
    if (res != PNR_STARTED) {
        printf("pubnub_history() returned unexpected: %d\n", res);
        pubnub_free(pbp);
        return -1;
    }
    res = pubnub_await(pbp);
    if (res == PNR_STARTED) {
        printf("pubnub_await() returned unexpected: PNR_STARTED(%d)\n", res);
        pubnub_free(pbp);
        return -1;
    }

    if (PNR_OK == res) {
        puts("Got history! Elements:");
        for (;;) {
            msg = pubnub_get(pbp);
            if (NULL == msg) {
                break;
            }
            puts(msg);
        }
    }
    else {
        printf("Getting history v2 with include_token failed with code: %d\n", res);
    }

    puts("Getting here_now presence...");
    res = pubnub_here_now(pbp, chan, NULL);
    if (res != PNR_STARTED) {
        printf("pubnub_here_now() returned unexpected: %d\n", res);
        pubnub_free(pbp);
        return -1;
    }
    res = pubnub_await(pbp);
    if (res == PNR_STARTED) {
        printf("pubnub_await() returned unexpected: PNR_STARTED(%d)\n", res);
        pubnub_free(pbp);
        return -1;
    }

    if (PNR_OK == res) {
        puts("Got here now presence!");
        for (;;) {
            msg = pubnub_get(pbp);
            if (NULL == msg) {
                break;
            }
            puts(msg);
        }
    }
    else {
        printf("Getting here-now presence failed with code: %d\n", res);
    }

    /** Global here_now presence for "demo" subscribe key is _very_
        long, but we have it here to show that we can handle very long
        response if the PUBNUB_DYNAMIC_REPLY_BUFFER is "on".
    */
    if (PUBNUB_DYNAMIC_REPLY_BUFFER) {
        puts("Getting global here_now presence...");
        res = pubnub_global_here_now(pbp);
        if (res != PNR_STARTED) {
            printf("pubnub_global_here_now() returned unexpected: %d\n", res);
            pubnub_free(pbp);
            return -1;
        }
        res = pubnub_await(pbp);
        if (res == PNR_STARTED) {
            printf("pubnub_await() returned unexpected: PNR_STARTED(%d)\n", res);
            pubnub_free(pbp);
            return -1;
        }
        
        if (PNR_OK == res) {
            puts("Got global here now presence!");
            for (;;) {
                msg = pubnub_get(pbp);
                if (NULL == msg) {
                    break;
                }
                puts(msg);
            }
        }
        else {
            printf("Getting global here-now presence failed with code: %d\n", res);
        }
    }

    puts("Getting where_now presence...");
    res = pubnub_where_now(pbp, pubnub_uuid_get(pbp));
    if (res != PNR_STARTED) {
        printf("pubnub_where_now() returned unexpected: %d\n", res);
        pubnub_free(pbp);
        return -1;
    }
    res = pubnub_await(pbp);
    if (res == PNR_STARTED) {
        printf("pubnub_await() returned unexpected: PNR_STARTED(%d)\n", res);
        pubnub_free(pbp);
        return -1;
    }

    if (PNR_OK == res) {
        puts("Got where now presence!");
        for (;;) {
            msg = pubnub_get(pbp);
            if (NULL == msg) {
                break;
            }
            puts(msg);
        }
    }
    else {
        printf("Getting where-now presence failed with code: %d\n", res);
    }

    puts("Setting state...");
    res = pubnub_set_state(pbp, chan, NULL, pubnub_uuid_get(pbp), "{\"x\":5}");
    if (res != PNR_STARTED) {
        printf("pubnub_set_state() returned unexpected: %d\n", res);
        pubnub_free(pbp);
        return -1;
    }
    res = pubnub_await(pbp);
    if (res == PNR_STARTED) {
        printf("pubnub_await() returned unexpected: PNR_STARTED(%d)\n", res);
        pubnub_free(pbp);
        return -1;
    }

    if (PNR_OK == res) {
        puts("Got set state response!");
        for (;;) {
            msg = pubnub_get(pbp);
            if (NULL == msg) {
                break;
            }
            puts(msg);
        }
    }
    else {
        printf("Setting state failed with code: %d\n", res);
    }

    puts("Getting state...");
    res = pubnub_state_get(pbp, chan, NULL, pubnub_uuid_get(pbp));
    if (res != PNR_STARTED) {
        printf("pubnub_state_get() returned unexpected: %d\n", res);
        pubnub_free(pbp);
        return -1;
    }
    res = pubnub_await(pbp);
    if (res == PNR_STARTED) {
        printf("pubnub_await() returned unexpected: PNR_STARTED(%d)\n", res);
        pubnub_free(pbp);
        return -1;
    }

    if (PNR_OK == res) {
        puts("Got state!");
        for (;;) {
            msg = pubnub_get(pbp);
            if (NULL == msg) {
                break;
            }
            puts(msg);
        }
    }
    else {
        printf("Getting state failed with code: %d\n", res);
    }

    puts("List channel group...");
    res = pubnub_list_channel_group(pbp, "channel-group");
    if (res != PNR_STARTED) {
        printf("pubnub_state_get() returned unexpected: %d\n", res);
        pubnub_free(pbp);
        return -1;
    }
    res = pubnub_await(pbp);
    if (res == PNR_STARTED) {
        printf("pubnub_await() returned unexpected: PNR_STARTED(%d)\n", res);
        pubnub_free(pbp);
        return -1;
    }

    if (PNR_OK == res) {
        puts("Got channel group list!");
        for (;;) {
            msg = pubnub_get_channel(pbp);
            if (NULL == msg) {
                break;
            }
            puts(msg);
        }
    }
    else {
        printf("Getting channel group list failed with code: %d ('%s')\n", res, pubnub_res_2_string(res));
    }
	
    /* We're done */
    if (pubnub_free(pbp) != 0) {
        printf("Failed to free the Pubnub context\n");
    }

    puts("Pubnub sync demo over.");

    return 0;
}
Exemple #7
0
int main()
{
    int option;
    char opt_string[4];
    char channel[PNC_CHANNEL_NAME_SIZE];
    char channel_group[PNC_CHANNEL_NAME_SIZE];
    char auth_key[PNC_AUTH_KEY_SIZE];
    char uuid[PNC_UUID_SIZE + 1];
    char state[2048];
    pubnub_t *pn = pubnub_alloc();
    pubnub_t *pn_sub = pubnub_alloc();
    
    if (NULL == pn || NULL == pn_sub) {
        printf("Failed to allocate pubnub context");
        return -1;
    }
    
    pubnub_init(pn, pubkey, pubkey);
    pubnub_init(pn_sub, pubkey, pubkey);
    pubnub_set_uuid(pn, PNC_DEFAULT_UUID);
    pubnub_set_uuid(pn, PNC_DEFAULT_SUBSCRIBE_UUID);

    pnc_ops_init(pn, pn_sub);
    
    displayMenuOptions(pn);
    
    option = 0;
    
    while (option != MENU_EXIT) {
        fgets(opt_string, sizeof(opt_string), stdin);
        opt_string[strlen(opt_string) - 1] = '\0';
        option = atoi(opt_string);
        printf("You entered %d(%s)\n", option, opt_string);
        
        switch (option) {
        case MENU_DISPLAY:
            break;
        case MENU_PUBLISH:
        {
            char message[PNC_READ_STRING_SIZE];
            bool store = false;
            // TODO: add json built string
            
            pnc_read_string_from_console("Channel Name",
                                         channel, PNC_CHANNEL_NAME_SIZE);
            pnc_read_bool_from_console_optional("Store", &store, true);
            
            puts("Enter the message for publish. To exit loop enter Q");

            while (fgets(message, PNC_READ_STRING_SIZE, stdin) != NULL && strcmp(message, "Q\n")) {
                if (strlen(message) == 1) {
                    puts("Invalid input");
                    continue;
                }
                
                message[strlen(message) - 1] = '\0';
                
                if (message[0] == '{' && message[strlen(message) - 1] == '}') {
                    pnc_ops_parse_response("pubnub_publish()",
                                           pubnub_publish(pn, channel, message), pn);
                }
                else {
                    char encoded[PNC_READ_STRING_SIZE];
                    snprintf(encoded, sizeof encoded,  "\"%s\"", message);
                    pnc_ops_parse_response("pubnub_publish()",
                                           pubnub_publish(pn, channel, encoded), pn);
                }
                
                puts("Enter the message for publish. To exit loop enter Q.");
            }
            break;
        }
        
        case MENU_HISTORY:
        {
            int count = 100;
            bool include_token = false;
            
            pnc_read_int_from_console_optional("Count", &count, true);
            
            if (count <= 0) {
                count = 100;
                puts("Count value cannot be less than 1. Default value(100) was applied.");
            }
            
            pnc_read_string_from_console("Channel Name",
                                         channel, PNC_CHANNEL_NAME_SIZE);
            
            // WARNING: Default buffer can be not big enough to get 100-items
            // history response with timetokens
            pnc_read_bool_from_console("Include timetokens", &include_token);
            
            pnc_ops_parse_response("pubnub_history()",
                                   pubnub_history(pn, channel, count, include_token), pn);
            break;
        }
        
        case MENU_HERE_NOW:
            pnc_read_string_from_console("Channel Name",
                                                  channel, PNC_CHANNEL_NAME_SIZE);
            
            pnc_ops_parse_response("pubnub_here_now()",
                                   pubnub_here_now(pn, channel, NULL), pn);
            break;
        case MENU_TIME:
            pnc_ops_parse_response("pubnub_time()", pubnub_time(pn), pn);
            break;
        case MENU_AUTH:
            pnc_read_string_from_console("Auth key", auth_key, PNC_AUTH_KEY_SIZE);
            pubnub_set_auth(pn, auth_key);
            
            break;
        case MENU_UUID:
            pnc_read_string_from_console("UUID", uuid, PNC_UUID_SIZE);
            pubnub_set_uuid(pn, uuid);
            break;
        case MENU_STATE_GET:
            pnc_read_string_from_console("Channel Name",
                                         channel, PNC_CHANNEL_NAME_SIZE);
            pnc_read_string_from_console_optional("UUID",
                                                  uuid, PNC_UUID_SIZE, true);
            
            if (strlen(uuid) == 0) {
                strcpy(uuid, pubnub_uuid_get(pn));
            }
            
            pnc_ops_parse_response("pubnub_get_state()",
                                   pubnub_state_get(pn, channel, NULL, uuid), pn);
            break;
        case MENU_SET_STATE:
            // Set State
            pnc_read_string_from_console("Channel Name",
                                         channel, PNC_CHANNEL_NAME_SIZE);
            pnc_read_string_from_console("JSON state without escaping",
                                         state, PNC_READ_STRING_SIZE);
            pnc_ops_parse_response("pubnub_set_state()",
                                   pubnub_set_state(pn, channel, NULL, pubnub_uuid_get(pn), state), pn);
            break;
        case MENU_WHERE_NOW:
            pnc_read_string_from_console_optional("UUID", uuid, PNC_UUID_SIZE, true);
            if (strlen(uuid) == 0) {
                puts("Using current UUID");
                strcpy(uuid, PNC_DEFAULT_UUID);
            }
            
            pnc_ops_parse_response("pubnub_where_now()",
                                   pubnub_where_now(pn, uuid), pn);
            break;
        case MENU_ADD_PRESENCE_CHANNEL:
        {
            char presence_channel[PNC_CHANNEL_NAME_SIZE + sizeof(PNC_PRESENCE_SUFFIX)];

            pnc_read_string_from_console("Channel name", channel, PNC_CHANNEL_NAME_SIZE);
            strcpy(presence_channel, channel);
            strcat(presence_channel, PNC_PRESENCE_SUFFIX);
            
            pnc_subscribe_add_channel(presence_channel);
            break;
        }
        
        case MENU_SUBSCRIBE:
            pnc_ops_subscribe(pn_sub);
            break;
        case MENU_UNSUBSCRIBE:
            pnc_ops_unsubscribe(pn_sub);
            break;
        case MENU_SUBSCRIPTION_ADD_CHANNEL:
            pnc_read_string_from_console("Enter Channel name",
                                         channel, PNC_CHANNEL_NAME_SIZE);
            pnc_subscribe_add_channel(channel);
            break;
        case MENU_SUBSCRIPTION_ADD_GROUP:
            pnc_read_string_from_console("Enter Group name",
                                         channel, PNC_CHANNEL_NAME_SIZE);
            pnc_subscribe_add_channel_group(channel);
            break;
        case MENU_SUBSCRIPTION_REMOVE_CHANNEL:
            pnc_read_string_from_console("Enter Channel name",
                                         channel, PNC_CHANNEL_NAME_SIZE);
            pnc_subscribe_remove_channel(channel);
            break;
        case MENU_SUBSCRIPTION_REMOVE_GROUP:
            pnc_read_string_from_console("Enter Group name",
                                         channel, PNC_CHANNEL_NAME_SIZE);
            pnc_subscribe_remove_channel_group(channel);
            break;
        case MENU_GROUP_ADD_CHANNEL:
            pnc_read_string_from_console("Group name",
                                         channel_group, PNC_CHANNEL_NAME_SIZE);
            pnc_read_string_from_console("Channel to add",
                                         channel, PNC_CHANNEL_NAME_SIZE);
            
            pnc_ops_parse_response("pubnub_add_channel_to_group()",
                                   pubnub_add_channel_to_group(pn, channel, channel_group), pn);
            
            break;
        case MENU_GROUP_REMOVE_CHANNEL:
            pnc_read_string_from_console("Group name",
                                         channel_group, PNC_CHANNEL_NAME_SIZE);
            pnc_read_string_from_console("Channel to remove",
                                         channel, PNC_CHANNEL_NAME_SIZE);
            
            pnc_ops_parse_response("pubnub_remove_channel_from_group()",
                                   pubnub_remove_channel_from_group(pn, channel, channel_group), pn);
            
            break;
        case MENU_GROUP_LIST_CHANNELS:
            pnc_read_string_from_console("Group to list",
                                         channel_group, PNC_CHANNEL_NAME_SIZE);
            
            pnc_ops_parse_response("pubnub_list_channel_group()",
                                   pubnub_list_channel_group(pn, channel_group), pn);
            
            break;
        case MENU_GROUP_REMOVE_GROUP:
            pnc_read_string_from_console("Group to remove",
                                         channel, PNC_CHANNEL_NAME_SIZE);
            pubnub_remove_channel_group(pn, channel);
            break;
        default:
            printf("Invalid input: %d\n", option);
            break;
        }
        
        printf("\n================================\n\n");
        displayMenuOptions(pn);
    }
    
    puts("Exiting");
    
    if (pubnub_free(pn) != 0) {
        puts("Failed to free the Pubnub context");
    }
    
    return 0;
}
int main()
{
    /* This is a widely use channel, something should happen there
       from time to time
    */
    char const *chan = "hello_world";
    pubnub_t *pbp = pubnub_alloc();
    if (NULL == pbp) {
        printf("Failed to allocate Pubnub context!\n");
        return -1;
    }

    pubnub_init(pbp, "demo", "demo");
    srand(time(NULL));

    /* This is essential, as otherwise waiting for incoming data will
       block! Since we're doing this, be sure to not enable verbose
       debugging, as you won't see a thing except endless lines of
       some tracing.
    */
    pubnub_set_non_blocking_io(pbp);

    puts("--------------------------");
    puts("Subscribe loop starting...");
    puts("--------------------------");
	
    for (;;) {
        time_t t = time(NULL);
        bool stop = false;
        enum pubnub_res res = pubnub_subscribe(pbp, chan, NULL);
        if (res != PNR_STARTED) {
            printf("pubnub_subscribe() returned unexpected: %d\n", res);
            break;;
        }

        /* Don't await here, 'cause it will loop until done */
        while (!stop) {
            res = pubnub_last_result(pbp);
            if (res == PNR_STARTED) {
                /* Here we simulate the "get out of subscribe loop"
                   external signal with a random number. Basically,
                   this has a 4% chance of stopping the wait every
                   second.
                */
                if (time(NULL) != t) {
                    stop = (rand() % 25) == 3;
                    t = time(NULL);
                }
            }
            else {
                if (PNR_OK == res) {
                    puts("Subscribed! Got messages:");
                    for (;;) {
                        char const *msg = pubnub_get(pbp);
                        if (NULL == msg) {
                            break;
                        }
                        puts(msg);
                    }
                }
                else {
                    printf("Subscribing failed with code: %d\n", res);
                }
                break;
            }
        }
        if (stop) {
            puts("---------------------------");
            puts("Cancelling the Subscribe...");
            puts("---------------------------");
            pubnub_cancel(pbp);
            /* Now it's OK to await, since we don't have anything else
               to do
            */
            pubnub_await(pbp);
            break;
        }
    }

	
    /* We're done */
    if (pubnub_free(pbp) != 0) {
        printf("Failed to free the Pubnub context `pbp`\n");
    }

    puts("Pubnub callback demo over.");

    return 0;
}
int main()
{
    char const *msg;
    enum pubnub_res res;
    struct UserData user_data;
    struct UserData user_data_2;
    char const *chan = "hello_world";
    pubnub_t *pbp = pubnub_alloc();
    pubnub_t *pbp_2 = pubnub_alloc();
    if (NULL == pbp) {
        printf("Failed to allocate Pubnub context!\n");
        return -1;
    }
    if (NULL == pbp_2) {
        printf("Failed to allocate Pubnub context!\n");
        return -1;
    }

    InitUserData(&user_data, pbp);
    InitUserData(&user_data_2, pbp_2);

    pubnub_init(pbp, "demo", "demo");
    pubnub_register_callback(pbp, sample_callback, &user_data);
    pubnub_init(pbp_2, "demo", "demo");
    pubnub_register_callback(pbp_2, sample_callback, &user_data_2);

    puts("-----------------------");
    puts("Subscribing...");
    puts("-----------------------");
	
    /* First subscribe, to get the time token */
    res = pubnub_subscribe(pbp, chan, NULL);
    if (res != PNR_STARTED) {
        printf("pubnub_subscribe() returned unexpected: %d\n", res);
        pubnub_free(pbp);
        pubnub_free(pbp_2);
        return -1;
    }

    puts("Await subscribe");
    res = await(&user_data);
    if (res == PNR_STARTED) {
        printf("await() returned unexpected: PNR_STARTED(%d)\n", res);
        pubnub_free(pbp);
        pubnub_free(pbp_2);
        return -1;
    }
    if (PNR_OK == res) {
        puts("Subscribed!");
    }
    else {
        printf("Subscribing failed with code: %d\n", res);
    }

    /* The "real" subscribe, with the just acquired time token */
    res = pubnub_subscribe(pbp, chan, NULL);
    if (res != PNR_STARTED) {
        printf("pubnub_subscribe() returned unexpected: %d\n", res);
        pubnub_free(pbp);
        pubnub_free(pbp_2);
        return -1;
    }
	
    /* Don't do "full" await here, because we didn't publish anything yet! */
    start_await(&user_data);
    
    puts("-----------------------");
    puts("Publishing...");
    puts("-----------------------");
    /* Since the subscribe is ongoing in the `pbp` context, we can't
       publish on it, so we use a different context to publish
    */
    res = pubnub_publish(pbp_2, chan, "\"Hello world from subscribe-publish callback sample!\"");
    if (res != PNR_STARTED) {
        printf("pubnub_publish() returned unexpected: %d\n", res);
        pubnub_free(pbp);
        pubnub_free(pbp_2);
        return -1;
    }

    puts("Await publish");
    res = await(&user_data_2);
    if (res == PNR_STARTED) {
        printf("await() returned unexpected: PNR_STARTED(%d)\n", res);
        pubnub_free(pbp);
        pubnub_free(pbp_2);
        return -1;
    }
    if (PNR_OK == res) {
        printf("Published! Response from Pubnub: %s\n", pubnub_last_publish_result(pbp_2));
    }
    else if (PNR_PUBLISH_FAILED == res) {
        printf("Published failed on Pubnub, description: %s\n", pubnub_last_publish_result(pbp_2));
    }
    else {
        printf("Publishing failed with code: %d\n", res);
    }
	
    /* Don't need `pbp_2` no more */
    if (pubnub_free(pbp_2) != 0) {
        printf("Failed to free the Pubnub context `pbp_2`\n");
    }
	
    /* Now we await the subscribe on `pbp` */
    puts("Await subscribe");
    res = end_await(&user_data);
    if (res == PNR_STARTED) {
        printf("await() returned unexpected: PNR_STARTED(%d)\n", res);
        pubnub_free(pbp);
        return -1;
    }
    if (PNR_OK == res) {
        puts("Subscribed! Got messages:");
        for (;;) {
            msg = pubnub_get(pbp);
            if (NULL == msg) {
                break;
            }
            puts(msg);
        }
    }
    else {
        printf("Subscribing failed with code: %d\n", res);
    }

	
    /* We're done */
    if (pubnub_free(pbp) != 0) {
        printf("Failed to free the Pubnub context `pbp`\n");
    }

    puts("Pubnub subscribe-publish callback demo over.");

    return 0;
}