[ENet-discuss] ENet - desconnection in 30 seconds after connection.

[Nicholas J Ingrassellino]

The same thing happens to me if the client does nothing (no events to 
send, ect) even when calling enet_host_service() on a regular basis. I 
just added an unreliable "ping packet" every once in a while which 
solved it.

------------------------------------------------------------------------

Nicholas J Ingrassellino
LifebloodNetworks.com <http://www.lifebloodnetworks.com/> || 
nick at lifebloodnetworks.com <mailto:nick at lifebloodnetworks.com>

"The idea that I can be presented with a problem, set out to logically 
solve it with the tools at hand, and wind up with a program that could 
not be legally used because someone else followed the same logical steps 
some years ago and filed for a patent on it is horrifying."
- John Carmack on software patents


On 11/05/2010 10:10 AM, Nuno Silva wrote:
> Hey there.
> On your while(true) on the client you must also call enet_host_service 
> in order for the client to keep its connection alive.
>
> 2010/11/5 Вячеслав Блинников <slavmfm at gmail.com 
> <mailto:slavmfm at gmail.com>>
>
>     Hello!
>
>     I wrote the base client accordingly the tutorial and the client which
>     read inputting through console characters and send it to the server.
>     Everything is fine but just first 30 seconds - then happen the
>     disconnection (message "Client information disconnected" shown).
>     What is wrong with my code?
>
>
>
>     Server code:
>
>     #include <cstdio>
>     #include "enet\enet.h"
>     int main(int argc, int** argv)
>     {
>            if (enet_initialize () != 0)
>        {
>            printf ("An error occurred while initializing ENet.\n");
>            goto END;
>        }
>            ENetAddress address;
>            address.host = ENET_HOST_ANY;
>            address.port = 1234;
>            ENetHost* server = enet_host_create ( & address, 32, 2, 0, 0);
>        if (server == NULL)
>        {
>            printf("An error occurred while trying to create an ENet
>     client host.\n");
>            goto END;
>        }
>            ENetEvent event;
>     WAIT_FOR_AN_EVENT:
>            enet_host_service(server, &event, 5);
>            switch (event.type)
>            {
>            case ENET_EVENT_TYPE_CONNECT:
>                    printf ("A new client connected from %x:%u.\n",
>     event.peer ->
>     address.host, event.peer -> address.port);
>                    event.peer -> data = "Client information";
>                    break;
>
>            case ENET_EVENT_TYPE_RECEIVE:
>                    printf ("A packet of length %u was received from %s
>     on channel %u.
>     Containings:\n  %s", event.packet -> dataLength, event.peer -> data,
>     event.channelID, event.packet -> data);
>                    enet_packet_destroy (event.packet);
>                    break;
>
>            case ENET_EVENT_TYPE_DISCONNECT:
>                    printf ("%s disconected.\n", event.peer -> data);
>                    event.peer -> data = NULL;
>                    break;
>
>            case ENET_EVENT_TYPE_NONE:
>                    break;
>            }
>            goto WAIT_FOR_AN_EVENT;
>
>            printf("host halted.\n");
>
>     END:
>            getchar();
>            return 0;
>     }
>
>
>
>     Client code:
>
>     #include <cstdio>
>     #include "enet\enet.h"
>     #include <vector>
>     int main(int argc, int** argv)
>     {
>            //where reading console data will be stored:
>            std::vector<char> buffer;
>
>            if (enet_initialize () != 0)
>        {
>            printf ("An error occurred while initializing ENet.\n");
>            goto END;
>        }
>            ENetHost* client        = enet_host_create ( NULL, 1, 2,
>     57600 / 8, 14400 / 8);
>            if(client == 0l)
>            {
>                    printf("An error occurred while trying to create an
>     ENet server host.\n");
>                    goto END;
>            }
>            ENetAddress address;
>            enet_address_set_host(&address, "localhost");
>            address.port    = 1234;
>
>            ENetPeer* peer  = enet_host_connect(client, &address, 2, 0);
>            if(peer == 0l)
>            {
>                    printf("No available peers for initiating an ENet
>     connection.\n");
>                    goto END;
>            }
>
>            ENetEvent event;
>            if (enet_host_service (client, & event, 5000) > 0 &&
>     event.type ==
>     ENET_EVENT_TYPE_CONNECT)
>            {
>                    puts ("Connection to localhost:1234 succeeded.");
>            }
>            else
>            {
>                    enet_peer_reset (peer);
>
>                    puts ("Connection to localhost:1234 failed.");
>                    goto END;
>            }
>
>            printf("Input some data which will be sent to server...\n");
>
>     INPUT_DATA:
>            buffer.clear();
>            while(true)
>            {
>                    char character = getchar();
>                    buffer.push_back(character);
>                    if(character == '\n')
>                    {
>                            break;
>                    }
>            }
>            buffer.push_back('\0');
>
>            ENetPacket * packet = enet_packet_create(&buffer[0],
>     buffer.size(),
>     ENET_PACKET_FLAG_RELIABLE);
>            enet_peer_send (peer, 0, packet);
>            enet_host_flush(client);
>            goto INPUT_DATA;
>
>     END:
>            getchar();
>
>            return 0;
>     }
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