/*
==================
SV_FinalMessage
Used by SV_Shutdown to send a final message to all
connected clients before the server goes down. The messages are sent immediately,
not just stuck on the outgoing message list, because the server is going
to totally exit after returning from this function.
==================
*/
void SV_FinalMessage( char *message, qboolean reconnect )
{
sv_client_t *cl;
byte msg_buf[1024];
sizebuf_t msg;
int i;
BF_Init( &msg, "FinalMessage", msg_buf, sizeof( msg_buf ));
BF_WriteByte( &msg, svc_print );
BF_WriteByte( &msg, PRINT_HIGH );
BF_WriteString( &msg, va( "%s\n", message ));
if( reconnect )
{
BF_WriteByte( &msg, svc_changing );
if( sv.loadgame || sv_maxclients->integer > 1 || sv.changelevel )
BF_WriteOneBit( &msg, 1 ); // changelevel
else BF_WriteOneBit( &msg, 0 );
}
else
{
BF_WriteByte( &msg, svc_disconnect );
}
// send it twice
// stagger the packets to crutch operating system limited buffers
for( i = 0, cl = svs.clients; i < sv_maxclients->integer; i++, cl++ )
if( cl->state >= cs_connected && !cl->fakeclient )
Netchan_Transmit( &cl->netchan, BF_GetNumBytesWritten( &msg ), BF_GetData( &msg ));
for( i = 0, cl = svs.clients; i < sv_maxclients->integer; i++, cl++ )
if( cl->state >= cs_connected && !cl->fakeclient )
Netchan_Transmit( &cl->netchan, BF_GetNumBytesWritten( &msg ), BF_GetData( &msg ));
}
/*
==============================
Netchan_CreateFragments_
==============================
*/
void Netchan_CreateFragments_( qboolean server, netchan_t *chan, sizebuf_t *msg )
{
fragbuf_t *buf;
int chunksize;
int send, pos;
int remaining;
int bufferid = 1;
fragbufwaiting_t *wait, *p;
if( BF_GetNumBytesWritten( msg ) == 0 )
return;
chunksize = bound( 16, net_blocksize->integer, 1400 );
wait = (fragbufwaiting_t *)Mem_Alloc( net_mempool, sizeof( fragbufwaiting_t ));
remaining = BF_GetNumBytesWritten( msg );
pos = 0;
while( remaining > 0 )
{
send = min( remaining, chunksize );
remaining -= send;
buf = Netchan_AllocFragbuf();
buf->bufferid = bufferid++;
// Copy in data
BF_Clear( &buf->frag_message );
BF_WriteBits( &buf->frag_message, msg->pData + pos, send << 3 );
pos += send;
Netchan_AddFragbufToTail( wait, buf );
}
// now add waiting list item to end of buffer queue
if( !chan->waitlist[FRAG_NORMAL_STREAM] )
{
chan->waitlist[FRAG_NORMAL_STREAM] = wait;
}
else
{
p = chan->waitlist[FRAG_NORMAL_STREAM];
while( p->next )
{
p = p->next;
}
p->next = wait;
}
}
/*
==============
CL_CheckingResFile
==============
*/
void CL_CheckingResFile( char *pResFileName )
{
sizebuf_t buf;
byte data[32];
if( FS_FileExists( pResFileName, false ))
return; // already exists
cls.downloadcount++;
if( cl_allow_fragment->integer )
{
Msg( "Starting file download: %s\n", pResFileName );
if( cls.state == ca_disconnected ) return;
BF_Init( &buf, "ClientPacket", data, sizeof( data ));
BF_WriteByte( &buf, clc_resourcelist );
BF_WriteString( &buf, pResFileName );
if( !cls.netchan.remote_address.type ) // download in singleplayer ???
cls.netchan.remote_address.type = NA_LOOPBACK;
// make sure message will be delivered
Netchan_Transmit( &cls.netchan, BF_GetNumBytesWritten( &buf ), BF_GetData( &buf ));
}
else
HTTP_AddDownload( pResFileName, -1, true );
}
/*
====================
CL_WriteDemoMessage
Dumps the current net message, prefixed by the length
====================
*/
void CL_WriteDemoMessage( qboolean startup, int start, sizebuf_t *msg )
{
file_t *file = startup ? cls.demoheader : cls.demofile;
int swlen;
byte c;
if( !file ) return;
// past the start but not recording a demo.
if( !startup && !cls.demorecording )
return;
swlen = BF_GetNumBytesWritten( msg ) - start;
if( swlen <= 0 ) return;
if( !startup )
{
cls.demotime += host.frametime;
demo.framecount++;
}
// demo playback should read this as an incoming message.
c = (cls.state != ca_active) ? dem_norewind : dem_read;
CL_WriteDemoCmdHeader( c, file );
CL_WriteDemoSequence( file );
// write the length out.
FS_Write( file, &swlen, sizeof( int ));
// output the buffer. Skip the network packet stuff.
FS_Write( file, BF_GetData( msg ) + start, swlen );
}
/*
=====================
CL_SendDisconnectMessage
Sends a disconnect message to the server
=====================
*/
void CL_SendDisconnectMessage( void )
{
sizebuf_t buf;
byte data[32];
if( cls.state == ca_disconnected ) return;
BF_Init( &buf, "LastMessage", data, sizeof( data ));
BF_WriteByte( &buf, clc_stringcmd );
BF_WriteString( &buf, "disconnect" );
if( !cls.netchan.remote_address.type )
cls.netchan.remote_address.type = NA_LOOPBACK;
// make sure message will be delivered
Netchan_Transmit( &cls.netchan, BF_GetNumBytesWritten( &buf ), BF_GetData( &buf ));
Netchan_Transmit( &cls.netchan, BF_GetNumBytesWritten( &buf ), BF_GetData( &buf ));
Netchan_Transmit( &cls.netchan, BF_GetNumBytesWritten( &buf ), BF_GetData( &buf ));
}
/*
==============================
Netchan_CreateFragments
==============================
*/
void Netchan_CreateFragments( qboolean server, netchan_t *chan, sizebuf_t *msg )
{
// always queue any pending reliable data ahead of the fragmentation buffer
if( BF_GetNumBytesWritten( &chan->message ) > 0 )
{
Netchan_CreateFragments_( server, chan, &chan->message );
BF_Clear( &chan->message );
}
Netchan_CreateFragments_( server, chan, msg );
}
/*
===============
Netchan_OutOfBand
Sends an out-of-band datagram
================
*/
void Netchan_OutOfBand( int net_socket, netadr_t adr, int length, byte *data )
{
sizebuf_t send;
byte send_buf[NET_MAX_PAYLOAD];
// write the packet header
BF_Init( &send, "SequencePacket", send_buf, sizeof( send_buf ));
BF_WriteLong( &send, -1 ); // -1 sequence means out of band
BF_WriteBytes( &send, data, length );
if( !CL_IsPlaybackDemo( ))
{
// send the datagram
NET_SendPacket( net_socket, BF_GetNumBytesWritten( &send ), BF_GetData( &send ), adr );
}
}
/*
====================
CL_WriteDemoUserCmd
Writes the current user cmd
====================
*/
void CL_WriteDemoUserCmd( int cmdnumber )
{
sizebuf_t buf;
word bytes;
byte data[1024];
if( !cls.demorecording || !cls.demofile )
return;
CL_WriteDemoCmdHeader( dem_usercmd, cls.demofile );
FS_Write( cls.demofile, &cls.netchan.outgoing_sequence, sizeof( int ));
FS_Write( cls.demofile, &cmdnumber, sizeof( int ));
// write usercmd_t
BF_Init( &buf, "UserCmd", data, sizeof( data ));
CL_WriteUsercmd( &buf, -1, cmdnumber ); // always no delta
bytes = BF_GetNumBytesWritten( &buf );
FS_Write( cls.demofile, &bytes, sizeof( word ));
FS_Write( cls.demofile, data, bytes );
}
/*
==============================
Netchan_CheckForCompletion
==============================
*/
void Netchan_CheckForCompletion( netchan_t *chan, int stream, int intotalbuffers )
{
int c, id;
int size;
fragbuf_t *p;
size = 0;
c = 0;
p = chan->incomingbufs[stream];
if( !p ) return;
while( p )
{
size += BF_GetNumBytesWritten( &p->frag_message );
c++;
id = FRAG_GETID( p->bufferid );
if( id != c )
{
if( chan->sock == NS_CLIENT )
{
MsgDev( D_ERROR, "Lost/dropped fragment would cause stall, retrying connection\n" );
Cbuf_AddText( "reconnect\n" );
}
}
p = p->next;
}
// received final message
if( c == intotalbuffers )
{
chan->incomingready[stream] = true;
MsgDev( D_NOTE, "\nincoming is complete %i bytes waiting\n", size );
}
}
/*
===================
CL_WritePacket
Create and send the command packet to the server
Including both the reliable commands and the usercmds
===================
*/
void CL_WritePacket( void )
{
sizebuf_t buf;
qboolean send_command = false;
byte data[MAX_CMD_BUFFER];
int i, from, to, key, size;
int numbackup = 2;
int numcmds;
int newcmds;
int cmdnumber;
// don't send anything if playing back a demo
if( cls.demoplayback || cls.state == ca_cinematic )
return;
if( cls.state == ca_disconnected || cls.state == ca_connecting )
return;
CL_ComputePacketLoss ();
#ifndef _DEBUG
if( cl_cmdrate->value < MIN_CMD_RATE )
{
Cvar_SetFloat( "cl_cmdrate", MIN_CMD_RATE );
}
#endif
Q_memset( data, 0, MAX_CMD_BUFFER );
BF_Init( &buf, "ClientData", data, sizeof( data ));
// Determine number of backup commands to send along
numbackup = bound( 0, cl_cmdbackup->integer, MAX_BACKUP_COMMANDS );
if( cls.state == ca_connected ) numbackup = 0;
// Check to see if we can actually send this command
// In single player, send commands as fast as possible
// Otherwise, only send when ready and when not choking bandwidth
if(( cl.maxclients == 1 ) || ( NET_IsLocalAddress( cls.netchan.remote_address ) && !host_limitlocal->integer ))
send_command = true;
else if(( host.realtime >= cls.nextcmdtime ) && Netchan_CanPacket( &cls.netchan ))
send_command = true;
if( cl.force_send_usercmd )
{
send_command = true;
cl.force_send_usercmd = false;
}
if(( cls.netchan.outgoing_sequence - cls.netchan.incoming_acknowledged ) >= CL_UPDATE_MASK )
{
if(( host.realtime - cls.netchan.last_received ) > CONNECTION_PROBLEM_TIME )
{
Con_NPrintf( 1, "^3Warning:^1 Connection Problem^7\n" );
cl.validsequence = 0;
}
}
if( cl_nodelta->integer )
{
cl.validsequence = 0;
}
// send a userinfo update if needed
if( userinfo->modified )
{
BF_WriteByte( &cls.netchan.message, clc_userinfo );
BF_WriteString( &cls.netchan.message, Cvar_Userinfo( ));
}
if( send_command )
{
int outgoing_sequence;
if( cl_cmdrate->integer > 0 )
cls.nextcmdtime = host.realtime + ( 1.0f / cl_cmdrate->value );
else cls.nextcmdtime = host.realtime; // always able to send right away
if( cls.lastoutgoingcommand == -1 )
{
outgoing_sequence = cls.netchan.outgoing_sequence;
cls.lastoutgoingcommand = cls.netchan.outgoing_sequence;
}
else outgoing_sequence = cls.lastoutgoingcommand + 1;
// begin a client move command
BF_WriteByte( &buf, clc_move );
// save the position for a checksum byte
key = BF_GetRealBytesWritten( &buf );
BF_WriteByte( &buf, 0 );
// write packet lossage percentation
BF_WriteByte( &buf, cls.packet_loss );
// say how many backups we'll be sending
BF_WriteByte( &buf, numbackup );
// how many real commands have queued up
newcmds = ( cls.netchan.outgoing_sequence - cls.lastoutgoingcommand );
// put an upper/lower bound on this
newcmds = bound( 0, newcmds, MAX_TOTAL_CMDS );
if( cls.state == ca_connected ) newcmds = 0;
BF_WriteByte( &buf, newcmds );
numcmds = newcmds + numbackup;
from = -1;
for( i = numcmds - 1; i >= 0; i-- )
{
cmdnumber = ( cls.netchan.outgoing_sequence - i ) & CL_UPDATE_MASK;
to = cmdnumber;
CL_WriteUsercmd( &buf, from, to );
from = to;
if( BF_CheckOverflow( &buf ))
Host_Error( "CL_Move, overflowed command buffer (%i bytes)\n", MAX_CMD_BUFFER );
}
// calculate a checksum over the move commands
size = BF_GetRealBytesWritten( &buf ) - key - 1;
buf.pData[key] = CRC32_BlockSequence( buf.pData + key + 1, size, cls.netchan.outgoing_sequence );
// message we are constructing.
i = cls.netchan.outgoing_sequence & CL_UPDATE_MASK;
// determine if we need to ask for a new set of delta's.
if( cl.validsequence && (cls.state == ca_active) && !( cls.demorecording && cls.demowaiting ))
{
cl.delta_sequence = cl.validsequence;
BF_WriteByte( &buf, clc_delta );
BF_WriteByte( &buf, cl.validsequence & 0xFF );
}
else
{
// request delta compression of entities
cl.delta_sequence = -1;
}
if( BF_CheckOverflow( &buf ))
{
Host_Error( "CL_Move, overflowed command buffer (%i bytes)\n", MAX_CMD_BUFFER );
}
// remember outgoing command that we are sending
cls.lastoutgoingcommand = cls.netchan.outgoing_sequence;
// composite the rest of the datagram..
if( BF_GetNumBitsWritten( &cls.datagram ) <= BF_GetNumBitsLeft( &buf ))
BF_WriteBits( &buf, BF_GetData( &cls.datagram ), BF_GetNumBitsWritten( &cls.datagram ));
BF_Clear( &cls.datagram );
// deliver the message (or update reliable)
Netchan_Transmit( &cls.netchan, BF_GetNumBytesWritten( &buf ), BF_GetData( &buf ));
}
else
{
// increment sequence number so we can detect that we've held back packets.
cls.netchan.outgoing_sequence++;
}
if( cls.demorecording )
{
// Back up one because we've incremented outgoing_sequence each frame by 1 unit
cmdnumber = ( cls.netchan.outgoing_sequence - 1 ) & CL_UPDATE_MASK;
CL_WriteDemoUserCmd( cmdnumber );
}
// update download/upload slider.
Netchan_UpdateProgress( &cls.netchan );
}
/*
==============================
Netchan_CopyFileFragments
==============================
*/
qboolean Netchan_CopyFileFragments( netchan_t *chan, sizebuf_t *msg )
{
fragbuf_t *p, *n;
char filename[CS_SIZE];
int nsize;
byte *buffer;
int pos;
if( !chan->incomingready[FRAG_FILE_STREAM] )
return false;
if( !chan->incomingbufs[FRAG_FILE_STREAM] )
{
MsgDev( D_WARN, "Netchan_CopyFileFragments: Called with no fragments readied\n" );
chan->incomingready[FRAG_FILE_STREAM] = false;
return false;
}
p = chan->incomingbufs[FRAG_FILE_STREAM];
BF_Init( msg, "NetMessage", net_message_buffer, sizeof( net_message_buffer ));
// copy in first chunk so we can get filename out
BF_WriteBits( msg, BF_GetData( &p->frag_message ), BF_GetNumBitsWritten( &p->frag_message ));
BF_SeekToBit( msg, 0 ); // rewind buffer
//Q_strncpy( filename, BF_ReadString( msg ), sizeof( filename ));
Q_snprintf( filename, sizeof( filename ), "downloaded/%s", BF_ReadString( msg ) );
if( Q_strlen( filename ) <= 0 )
{
MsgDev( D_ERROR, "File fragment received with no filename\nFlushing input queue\n" );
// clear out bufs
Netchan_FlushIncoming( chan, FRAG_FILE_STREAM );
return false;
}
else if( Q_strstr( filename, ".." ))
{
MsgDev( D_ERROR, "File fragment received with relative path, ignoring\n" );
// clear out bufs
Netchan_FlushIncoming( chan, FRAG_FILE_STREAM );
return false;
}
Q_strncpy( chan->incomingfilename, filename, sizeof( chan->incomingfilename ));
if( FS_FileExists( filename, false ))
{
MsgDev( D_ERROR, "Can't download %s, already exists\n", filename );
// clear out bufs
Netchan_FlushIncoming( chan, FRAG_FILE_STREAM );
return true;
}
// create file from buffers
nsize = 0;
while ( p )
{
nsize += BF_GetNumBytesWritten( &p->frag_message ); // Size will include a bit of slop, oh well
if( p == chan->incomingbufs[FRAG_FILE_STREAM] )
{
nsize -= BF_GetNumBytesRead( msg );
}
p = p->next;
}
buffer = Mem_Alloc( net_mempool, nsize + 1 );
p = chan->incomingbufs[ FRAG_FILE_STREAM ];
pos = 0;
while( p )
{
int cursize;
n = p->next;
cursize = BF_GetNumBytesWritten( &p->frag_message );
// first message has the file name, don't write that into the data stream,
// just write the rest of the actual data
if( p == chan->incomingbufs[FRAG_FILE_STREAM] )
{
// copy it in
cursize -= BF_GetNumBytesRead( msg );
Q_memcpy( &buffer[pos], &p->frag_message.pData[BF_GetNumBytesRead( msg )], cursize );
}
else
{
Q_memcpy( &buffer[pos], p->frag_message.pData, cursize );
}
pos += cursize;
Mem_Free( p );
p = n;
}
FS_WriteFile( filename, buffer, pos );
Mem_Free( buffer );
// clear remnants
BF_Clear( msg );
chan->incomingbufs[FRAG_FILE_STREAM] = NULL;
// reset flag
chan->incomingready[FRAG_FILE_STREAM] = false;
return true;
}
/*
==============================
Netchan_CreateFileFragments
==============================
*/
int Netchan_CreateFileFragments( qboolean server, netchan_t *chan, const char *filename )
{
int chunksize;
int send, pos;
int remaining;
int bufferid = 1;
int filesize = 0;
qboolean firstfragment = true;
fragbufwaiting_t *wait, *p;
fragbuf_t *buf;
chunksize = bound( 16, net_blocksize->integer, 512 );
filesize = FS_FileSize( filename, false );
if( filesize <= 0 )
{
MsgDev( D_WARN, "Unable to open %s for transfer\n", filename );
return 0;
}
wait = (fragbufwaiting_t *)Mem_Alloc( net_mempool, sizeof( fragbufwaiting_t ));
remaining = filesize;
pos = 0;
while( remaining > 0 )
{
send = min( remaining, chunksize );
buf = Netchan_AllocFragbuf();
buf->bufferid = bufferid++;
// copy in data
BF_Clear( &buf->frag_message );
if( firstfragment )
{
firstfragment = false;
// Write filename
BF_WriteString( &buf->frag_message, filename );
// Send a bit less on first package
send -= BF_GetNumBytesWritten( &buf->frag_message );
}
buf->isfile = true;
buf->size = send;
buf->foffset = pos;
Q_strncpy( buf->filename, filename, sizeof( buf->filename ));
pos += send;
remaining -= send;
Netchan_AddFragbufToTail( wait, buf );
}
// now add waiting list item to end of buffer queue
if( !chan->waitlist[FRAG_FILE_STREAM] )
{
chan->waitlist[FRAG_FILE_STREAM] = wait;
}
else
{
p = chan->waitlist[FRAG_FILE_STREAM];
while( p->next )
{
p = p->next;
}
p->next = wait;
}
return 1;
}
/*
==============================
Netchan_CreateFileFragmentsFromBuffer
==============================
*/
void Netchan_CreateFileFragmentsFromBuffer( qboolean server, netchan_t *chan, char *filename, byte *pbuf, int size )
{
int chunksize;
int send, pos;
int remaining;
int bufferid = 1;
qboolean firstfragment = true;
fragbufwaiting_t *wait, *p;
fragbuf_t *buf;
if( !size ) return;
chunksize = bound( 16, net_blocksize->integer, 512 );
wait = ( fragbufwaiting_t * )Mem_Alloc( net_mempool, sizeof( fragbufwaiting_t ));
remaining = size;
pos = 0;
while( remaining > 0 )
{
send = min( remaining, chunksize );
buf = Netchan_AllocFragbuf();
buf->bufferid = bufferid++;
// copy in data
BF_Clear( &buf->frag_message );
if( firstfragment )
{
firstfragment = false;
// write filename
BF_WriteString( &buf->frag_message, filename );
// send a bit less on first package
send -= BF_GetNumBytesWritten( &buf->frag_message );
}
buf->isbuffer = true;
buf->isfile = true;
buf->size = send;
buf->foffset = pos;
BF_WriteBits( &buf->frag_message, pbuf + pos, send << 3 );
pos += send;
remaining -= send;
Netchan_AddFragbufToTail( wait, buf );
}
// now add waiting list item to end of buffer queue
if( !chan->waitlist[FRAG_FILE_STREAM] )
{
chan->waitlist[FRAG_FILE_STREAM] = wait;
}
else
{
p = chan->waitlist[FRAG_FILE_STREAM];
while( p->next )
{
p = p->next;
}
p->next = wait;
}
}
/*
===============
Netchan_TransmitBits
tries to send an unreliable message to a connection, and handles the
transmition / retransmition of the reliable messages.
A 0 length will still generate a packet and deal with the reliable messages.
================
*/
void Netchan_TransmitBits( netchan_t *chan, int length, byte *data )
{
sizebuf_t send;
byte send_buf[NET_MAX_MESSAGE];
qboolean send_reliable_fragment;
qboolean send_resending = false;
qboolean send_reliable;
size_t size1, size2;
uint w1, w2, hdr_size;
int i, j;
float fRate;
// check for message overflow
// check for message overflow
if( BF_CheckOverflow( &chan->message ))
{
MsgDev( D_ERROR, "%s:outgoing message overflow\n", NET_AdrToString( chan->remote_address ));
return;
}
// if the remote side dropped the last reliable message, resend it
send_reliable = false;
if( chan->incoming_acknowledged > chan->last_reliable_sequence && chan->incoming_reliable_acknowledged != chan->reliable_sequence )
{
send_reliable = true;
send_resending = true;
}
// A packet can have "reliable payload + frag payload + unreliable payload
// frag payload can be a file chunk, if so, it needs to be parsed on the receiving end and reliable payload + unreliable payload need
// to be passed on to the message queue. The processing routine needs to be able to handle the case where a message comes in and a file
// transfer completes
// if the reliable transmit buffer is empty, copy the current message out
if( !chan->reliable_length )
{
qboolean send_frag = false;
fragbuf_t *pbuf;
// will be true if we are active and should let chan->message get some bandwidth
int send_from_frag[MAX_STREAMS] = { 0, 0 };
int send_from_regular = false;
// if we have data in the waiting list(s) and we have cleared the current queue(s), then
// push the waitlist(s) into the current queue(s)
Netchan_FragSend( chan );
// sending regular payload
send_from_regular = BF_GetNumBytesWritten( &chan->message ) ? 1 : 0;
// check to see if we are sending a frag payload
for( i = 0; i < MAX_STREAMS; i++ )
{
if( chan->fragbufs[i] )
{
send_from_frag[i] = 1;
}
}
// stall reliable payloads if sending from frag buffer
if( send_from_regular && ( send_from_frag[FRAG_NORMAL_STREAM] ))
{
send_from_regular = false;
// if the reliable buffer has gotten too big, queue it at the end of everything and clear out buffer
if( BF_GetNumBytesWritten( &chan->message ) > MAX_RELIABLE_PAYLOAD )
{
Netchan_CreateFragments(( chan->sock == NS_SERVER ), chan, &chan->message );
BF_Clear( &chan->message );
}
}
// startpos will be zero if there is no regular payload
for( i = 0; i < MAX_STREAMS; i++ )
{
chan->frag_startpos[i] = 0;
// assume no fragment is being sent
chan->reliable_fragment[i] = 0;
chan->reliable_fragid[i] = 0;
chan->frag_length[i] = 0;
if( send_from_frag[i] )
{
send_frag = true;
}
}
if( send_from_regular || send_frag )
{
chan->reliable_sequence ^= 1;
send_reliable = true;
}
if( send_from_regular )
{
Q_memcpy( chan->reliable_buf, chan->message_buf, BF_GetNumBytesWritten( &chan->message ));
chan->reliable_length = BF_GetNumBitsWritten( &chan->message );
BF_Clear( &chan->message );
// if we send fragments, this is where they'll start
for( i = 0; i < MAX_STREAMS; i++ )
{
chan->frag_startpos[i] = chan->reliable_length;
}
}
for( i = 0; i < MAX_STREAMS; i++ )
{
int fragment_size;
int newpayloadsize;
// is there someting in the fragbuf?
pbuf = chan->fragbufs[i];
fragment_size = 0;
if( pbuf )
{
fragment_size = BF_GetNumBytesWritten( &pbuf->frag_message );
// files set size a bit differently.
if( pbuf->isfile && !pbuf->isbuffer )
{
fragment_size = pbuf->size;
}
}
newpayloadsize = (( chan->reliable_length + ( fragment_size << 3 )) + 7 ) >> 3;
// make sure we have enought space left
if( send_from_frag[i] && pbuf && ( newpayloadsize < MAX_RELIABLE_PAYLOAD ))
{
sizebuf_t temp;
// which buffer are we sending ?
chan->reliable_fragid[i] = MAKE_FRAGID( pbuf->bufferid, chan->fragbufcount[i] );
// if it's not in-memory, then we'll need to copy it in frame the file handle.
if( pbuf->isfile && !pbuf->isbuffer )
{
byte filebuffer[2048];
file_t *hfile;
hfile = FS_Open( pbuf->filename, "rb", false );
FS_Seek( hfile, pbuf->foffset, SEEK_SET );
FS_Read( hfile, filebuffer, pbuf->size );
BF_WriteBits( &pbuf->frag_message, filebuffer, pbuf->size << 3 );
FS_Close( hfile );
}
// copy frag stuff on top of current buffer
BF_StartWriting( &temp, chan->reliable_buf, sizeof( chan->reliable_buf ), chan->reliable_length, -1 );
BF_WriteBits( &temp, BF_GetData( &pbuf->frag_message ), BF_GetNumBitsWritten( &pbuf->frag_message ));
chan->reliable_length += BF_GetNumBitsWritten( &pbuf->frag_message );
chan->frag_length[i] = BF_GetNumBitsWritten( &pbuf->frag_message );
// unlink pbuf
Netchan_UnlinkFragment( pbuf, &chan->fragbufs[i] );
chan->reliable_fragment[i] = 1;
// offset the rest of the starting positions
for( j = i + 1; j < MAX_STREAMS; j++ )
{
chan->frag_startpos[j] += chan->frag_length[i];
}
}
}
}
