<div>Thanks for taking the time to make an example :)<br></div><div>Im sure it will help someone along the way.</div><br><div class="gmail_quote">On Thu, Nov 11, 2010 at 12:21 PM, Shafqat Bhuiyan <span dir="ltr"><<a href="mailto:priomsrb@gmail.com">priomsrb@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">Hi,<br>
<br>
I was looking around for some example programs that use enet<br>
but like others I couldn't find one. So I tried to make one myself.<br>
<br>
This is a simple chat program. Multiple clients can join the server<br>
and write messages. Messages will be received by all clients<br>
(including the one that sent it).<br>
<br>
Most of the code is a direct copy/paste from the enet tutorial. The<br>
code is definitely not perfect but is suitable for a beginner to look<br>
around in.<br>
<br>
<br>
<br>
/* server.cpp */<br>
#include <stdio.h><br>
#include <enet/enet.h><br>
<br>
int main (int argc, char *argv[])<br>
{<br>
ENetAddress address;<br>
ENetHost *server;<br>
ENetEvent event;<br>
int serviceResult;<br>
<br>
puts ("Starting server");<br>
<br>
if (enet_initialize () != 0)<br>
{<br>
puts ("Error initialising enet");<br>
exit (EXIT_FAILURE);<br>
}<br>
<br>
<br>
/* Bind the server to the default localhost. */<br>
/* A specific host address can be specified by */<br>
/* enet_address_set_host (& address, "x.x.x.x"); */<br>
address.host = ENET_HOST_ANY;<br>
/* Bind the server to port 1234. */<br>
address.port = 1234;<br>
<br>
server = enet_host_create (&address,<br>
32, /* number of clients */<br>
2, /* number of channels */<br>
0, /* Any incoming bandwith */<br>
0); /* Any outgoing bandwith */<br>
<br>
if (server == NULL)<br>
{<br>
puts ("Could not create server host");<br>
exit (EXIT_FAILURE);<br>
}<br>
<br>
<br>
while (true)<br>
{<br>
serviceResult = 1;<br>
<br>
/* Keep doing host_service until no events are left */<br>
while (serviceResult > 0)<br>
{<br>
/* Wait up to 1000 milliseconds for an event. */<br>
serviceResult = enet_host_service (server, &event, 1000);<br>
<br>
if (serviceResult > 0)<br>
{<br>
<br>
switch (event.type)<br>
{<br>
case ENET_EVENT_TYPE_CONNECT:<br>
printf ("A new client connected from %x:%u.\n",<br>
event.peer -> address.host,<br>
event.peer -> address.port);<br>
<br>
/* Store any relevant client information here. */<br>
event.peer->data = (void*)"Client information";<br>
<br>
break;<br>
<br>
case ENET_EVENT_TYPE_RECEIVE:<br>
printf ("A packet of length %u containing '%s' was "<br>
"received from %s on channel %u.\n",<br>
event.packet -> dataLength,<br>
event.packet -> data,<br>
event.peer -> data,<br>
event.channelID);<br>
<br>
/* Tell all clients about this message */<br>
enet_host_broadcast (server, 0, event.packet);<br>
<br>
break;<br>
<br>
case ENET_EVENT_TYPE_DISCONNECT:<br>
printf ("%s disconected.\n", event.peer -> data);<br>
<br>
/* Reset the peer's client information. */<br>
<br>
event.peer -> data = NULL;<br>
<br>
break;<br>
}<br>
}<br>
else if (serviceResult > 0)<br>
{<br>
puts ("Error with servicing the server");<br>
exit (EXIT_FAILURE);<br>
}<br>
}<br>
<br>
}<br>
<br>
enet_host_destroy (server);<br>
enet_deinitialize ();<br>
<br>
return 0;<br>
<br>
}<br>
<br>
<br>
<br>
/************************************************/<br>
<br>
<br>
<br>
/* client.cpp */<br>
#include <stdio.h><br>
#include <string.h><br>
#include <enet/enet.h><br>
<br>
<br>
int main (int argc, char* argv[]) {<br>
ENetHost *client;<br>
ENetAddress address;<br>
ENetPeer *peer;<br>
ENetEvent event;<br>
char message[1024];<br>
int serviceResult;<br>
<br>
puts ("Starting client");<br>
<br>
if (enet_initialize () != 0) {<br>
fprintf (stderr, "Error initialising enet");<br>
exit (EXIT_FAILURE);<br>
}<br>
<br>
client = enet_host_create (NULL, /* create a client host */<br>
1, /* number of clients */<br>
2, /* number of channels */<br>
57600 / 8, /* incoming bandwith */<br>
14400 / 8); /* outgoing bandwith */<br>
<br>
if (client == NULL) {<br>
fprintf (stderr, "Could not create client host");<br>
exit (EXIT_FAILURE);<br>
}<br>
<br>
<br>
enet_address_set_host (&address, "localhost");<br>
address.port = 1234;<br>
<br>
peer = enet_host_connect (client,<br>
&address, /* address to connect to */<br>
2, /* number of channels */<br>
0); /* user data supplied to<br>
the receiving host */<br>
<br>
if (peer == NULL) {<br>
fprintf (stderr, "No available peers for initiating an ENet "<br>
"connection.\n");<br>
exit (EXIT_FAILURE);<br>
}<br>
<br>
<br>
/* Try to connect to server within 5 seconds */<br>
if (enet_host_service (client, &event, 5000) > 0 &&<br>
event.type == ENET_EVENT_TYPE_CONNECT)<br>
{<br>
puts ("Connection to server succeeded.");<br>
}<br>
else<br>
{<br>
/* Either the 5 seconds are up or a disconnect event was */<br>
/* received. Reset the peer in the event the 5 seconds */<br>
/* had run out without any significant event. */<br>
enet_peer_reset (peer);<br>
<br>
fprintf (stderr, "Connection to server failed.");<br>
exit (EXIT_FAILURE);<br>
}<br>
<br>
while (true)<br>
{<br>
serviceResult = 1;<br>
<br>
/* Keep doing host_service until no events are left */<br>
while (serviceResult > 0)<br>
{<br>
serviceResult = enet_host_service (client, &event, 0);<br>
<br>
if (serviceResult > 0)<br>
{<br>
switch (event.type)<br>
{<br>
case ENET_EVENT_TYPE_CONNECT:<br>
printf ("A new client connected from %x:%u.\n",<br>
event.peer -> address.host,<br>
event.peer -> address.port);<br>
<br>
event.peer->data = (void*)"New User";<br>
break;<br>
<br>
case ENET_EVENT_TYPE_RECEIVE:<br>
printf ("A packet of length %u containing '%s' was "<br>
"received from %s on channel %u.\n",<br>
event.packet -> dataLength,<br>
event.packet -> data,<br>
event.peer -> data,<br>
event.channelID);<br>
<br>
/* Clean up the packet now that we're done using it. */<br>
enet_packet_destroy (event.packet);<br>
<br>
break;<br>
<br>
case ENET_EVENT_TYPE_DISCONNECT:<br>
printf ("%s disconected.\n", event.peer -> data);<br>
<br>
break;<br>
}<br>
}<br>
else if (serviceResult > 0)<br>
{<br>
puts ("Error with servicing the client");<br>
exit (EXIT_FAILURE);<br>
}<br>
<br>
}<br>
<br>
<br>
printf ("Say> ");<br>
gets (message);<br>
<br>
if (strcmp (message, "exit") == 0 ||<br>
strcmp (message, "quit") == 0) {<br>
break;<br>
}<br>
<br>
if(strlen(message) > 0) {<br>
ENetPacket *packet = enet_packet_create (message, strlen<br>
(message) + 1, ENET_PACKET_FLAG_RELIABLE);<br>
enet_peer_send (peer, 0, packet);<br>
}<br>
<br>
}<br>
<br>
enet_peer_disconnect (peer, 0);<br>
<br>
/* Allow up to 3 seconds for the disconnect to succeed */<br>
/* and drop any packets received packets */<br>
while (enet_host_service (client, & event, 3000) > 0)<br>
{<br>
<br>
switch (event.type)<br>
{<br>
case ENET_EVENT_TYPE_RECEIVE:<br>
enet_packet_destroy (event.packet);<br>
break;<br>
<br>
case ENET_EVENT_TYPE_DISCONNECT:<br>
puts ("Disconnection succeeded.");<br>
break;<br>
}<br>
}<br>
<br>
<br>
enet_host_destroy (client);<br>
enet_deinitialize ();<br>
<br>
return 0;<br>
<br>
}<br>
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</blockquote></div><br>