void *do_chld(void *arg)
{
int client_socket = (int) arg;
// the socket to the server if we are the controller
int backend_socket = -1;
int len = 0;
int flag = 1;
printf("Child thread: Socket number = %d\n", client_socket);
while (flag) {
struct op_hdr get_hdr;
/* Read the header*/
printf("\t\t\tfirst read\n");
READ_SOC(len, client_socket, &get_hdr, HDR_SIZE);
printf("***HDR***: op: %d, p1: %d, p2: %d, p3: %d\n",
get_hdr.op, get_hdr.p1, get_hdr.p2, get_hdr.p3);
/* ACT */
switch (get_hdr.op) {
case OP_OPEN:
controller_open(&backend_socket, client_socket, get_hdr);
break;
case OP_READ:
controller_read(&backend_socket, client_socket, get_hdr);
break;
case OP_WRITE:
controller_write(&backend_socket, client_socket, get_hdr);
break;
case OP_SEEK:
controller_seek(&backend_socket, client_socket, get_hdr);
break;
case OP_SCANDIR:
controller_scandir(&backend_socket, client_socket, get_hdr);
break;
case OP_CLOSE:
controller_close(&backend_socket, client_socket, get_hdr);
break;
case OP_END:
flag = 0;
WRITE_SOC(len, backend_socket, &get_hdr, HDR_SIZE);
break;
default:
/* ERROR! */
/* Since we are the server, we dont know how to handle
errors on the client */
get_hdr.op = -1;
WRITE_SOC(len, client_socket, &get_hdr, HDR_SIZE);
printf("Bad opcode: %d\n", get_hdr.op);
break;
}
}
printf("Child: Done Processing...\n");
/* close the socket and exit this thread */
close(client_socket);
pthread_exit((void *)NULL);
/* never reached */
return(NULL);
}
int net_controller_tick(controller *ctrl, int ticks, ctrl_event **ev) {
ENetEvent event;
wtf *data = ctrl->data;
ENetHost *host = data->host;
ENetPeer *peer = data->peer;
serial *ser;
/*int handled = 0;*/
while (enet_host_service(host, &event, 0) > 0) {
switch (event.type) {
case ENET_EVENT_TYPE_RECEIVE:
ser = malloc(sizeof(serial));
serial_create(ser);
ser->data = malloc(event.packet->dataLength);
ser->len = event.packet->dataLength;
memcpy(ser->data, event.packet->data, event.packet->dataLength);
switch(serial_read_int8(ser)) {
case EVENT_TYPE_ACTION:
{
// dispatch keypress to scene
int action = serial_read_int16(ser);
controller_cmd(ctrl, action, ev);
/*handled = 1;*/
serial_free(ser);
free(ser);
}
break;
case EVENT_TYPE_HB:
{
// got a tick
int id = serial_read_int8(ser);
if (id == data->id) {
int start = serial_read_int32(ser);
int peerticks = serial_read_int32(ser);
int newrtt = abs(start - ticks);
data->rttbuf[data->rttpos++] = newrtt;
if (data->rttpos >= 100) {
data->rttpos = 0;
data->rttfilled = 1;
}
if (data->rttfilled == 1) {
ctrl->rtt = avg_rtt(data->rttbuf, 100);
data->tick_offset = (peerticks + (ctrl->rtt/2)) - ticks;
/*DEBUG("I am %d ticks away from server: %d %d", data->tick_offset, ticks, peerticks);*/
}
data->outstanding_hb = 0;
data->last_hb = ticks;
serial_free(ser);
} else {
// a heartbeat from the peer, bounce it back
ENetPacket *packet;
// write our own ticks into it
serial_write_int32(ser, ticks);
packet = enet_packet_create(ser->data, ser->len, ENET_PACKET_FLAG_UNSEQUENCED);
if (peer) {
enet_peer_send(peer, 0, packet);
enet_host_flush (host);
}
}
free(ser);
}
break;
case EVENT_TYPE_SYNC:
controller_sync(ctrl, ser, ev);
/*handled = 1;*/
break;
default:
serial_free(ser);
free(ser);
}
enet_packet_destroy(event.packet);
break;
case ENET_EVENT_TYPE_DISCONNECT:
DEBUG("peer disconnected!");
data->disconnected = 1;
controller_close(ctrl, ev);
return 1; // bail the f**k out
break;
default:
break;
}
}
int tick_interval = 5;
if (data->rttfilled) {
tick_interval = 20;
}
if ((data->last_hb == -1 || ticks - data->last_hb > tick_interval) || !data->outstanding_hb) {
data->outstanding_hb = 1;
serial ser;
ENetPacket *packet;
serial_create(&ser);
serial_write_int8(&ser, EVENT_TYPE_HB);
serial_write_int8(&ser, data->id);
serial_write_int32(&ser, ticks);
packet = enet_packet_create(ser.data, ser.len, ENET_PACKET_FLAG_UNSEQUENCED);
if (peer) {
enet_peer_send(peer, 0, packet);
enet_host_flush (host);
} else {
DEBUG("peer is null~");
data->disconnected = 1;
controller_close(ctrl, ev);
}
}
/*if(!handled) {*/
/*controller_cmd(ctrl, ACT_STOP, ev);*/
/*}*/
return 0;
}