static void NET_SV_ParseGameDataACK(net_packet_t *packet, net_client_t *client)
{
unsigned int ackseq;
if (server_state != SERVER_IN_GAME)
{
return;
}
// Read header
if (!NET_ReadInt8(packet, &ackseq))
{
return;
}
// Expand 8-bit values to the full sequence number
ackseq = NET_SV_ExpandTicNum(ackseq);
// Higher acknowledgement point than we already have?
if (ackseq > client->acknowledged)
{
client->acknowledged = ackseq;
}
}
static void NET_SV_ParseGameDataACK(net_packet_t *packet, net_client_t *client)
{
unsigned int ackseq;
NET_Log("server: processing game data ack packet");
if (server_state != SERVER_IN_GAME)
{
NET_Log("server: error: not in game state, server_state=%d",
server_state);
return;
}
// Read header
if (!NET_ReadInt8(packet, &ackseq))
{
NET_Log("server: error: missing acknowledgement field");
return;
}
// Expand 8-bit values to the full sequence number
ackseq = NET_SV_ExpandTicNum(ackseq);
// Higher acknowledgement point than we already have?
if (ackseq > client->acknowledged)
{
NET_Log("server: acknowledged up to %d", ackseq);
client->acknowledged = ackseq;
}
}
static void NET_SV_ParseGameData(net_packet_t *packet, net_client_t *client)
{
net_client_recv_t *recvobj;
unsigned int seq;
unsigned int ackseq;
unsigned int num_tics;
unsigned int nowtime;
size_t i;
int player;
int resend_start, resend_end;
int index;
if (server_state != SERVER_IN_GAME)
{
return;
}
if (client->drone)
{
// Drones do not contribute any game data.
return;
}
player = client->player_number;
// Read header
if (!NET_ReadInt8(packet, &ackseq)
|| !NET_ReadInt8(packet, &seq)
|| !NET_ReadInt8(packet, &num_tics))
{
return;
}
// Get the current time
nowtime = I_GetTimeMS();
// Expand 8-bit values to the full sequence number
ackseq = NET_SV_ExpandTicNum(ackseq);
seq = NET_SV_ExpandTicNum(seq);
// Sanity checks
for (i=0; i<num_tics; ++i)
{
net_ticdiff_t diff;
signed int latency;
if (!NET_ReadSInt16(packet, &latency)
|| !NET_ReadTiccmdDiff(packet, &diff, sv_settings.lowres_turn))
{
return;
}
index = seq + i - recvwindow_start;
if (index < 0 || index >= BACKUPTICS)
{
// Not in range of the recv window
continue;
}
recvobj = &recvwindow[index][player];
recvobj->active = true;
recvobj->diff = diff;
recvobj->latency = latency;
client->last_gamedata_time = nowtime;
}
// Higher acknowledgement point?
if (ackseq > client->acknowledged)
{
client->acknowledged = ackseq;
}
// Has this been received out of sequence, ie. have we not received
// all tics before the first tic in this packet? If so, send a
// resend request.
//printf("SV: %p: %i\n", client, seq);
resend_end = seq - recvwindow_start;
if (resend_end <= 0)
return;
if (resend_end >= BACKUPTICS)
resend_end = BACKUPTICS - 1;
index = resend_end - 1;
resend_start = resend_end;
while (index >= 0)
{
recvobj = &recvwindow[index][player];
if (recvobj->active)
{
// ended our run of unreceived tics
break;
}
if (recvobj->resend_time != 0)
{
// Already sent a resend request for this tic
break;
}
resend_start = index;
--index;
}
// Possibly send a resend request
if (resend_start < resend_end)
{
/*
printf("missed %i-%i before %i, send resend\n",
recvwindow_start + resend_start,
recvwindow_start + resend_end - 1,
seq);
*/
NET_SV_SendResendRequest(client,
recvwindow_start + resend_start,
recvwindow_start + resend_end - 1);
}
}