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- Make sure at least one round of download packets and packet queues gets sent each frame

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- Fix timeVal select timeout value for case of unlimited data rate and now downloads are active
This commit is contained in:
Thilo Schulz 2011-07-13 18:57:32 +00:00
parent d827447da8
commit 1c3ecb3d3c
1 changed files with 60 additions and 66 deletions
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124
code/qcommon/common.c
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@ -3104,83 +3104,77 @@ void Com_Frame( void ) {
do
{
// Busy sleep the last millisecond for better timeout precision
if(timeVal < 2)
NET_Sleep(0);
else
if(com_sv_running->integer)
{
if(com_sv_running->integer)
// Send out fragmented packets now that we're idle
delayT = SV_SendQueuedMessages();
if(delayT >= 0 && delayT < timeVal)
timeVal = delayT;
if(sv_dlRate->integer)
{
// Send out fragmented packets now that we're idle
delayT = SV_SendQueuedMessages();
if(delayT >= 0 && delayT < timeVal)
timeVal = delayT;
// Rate limiting. This is very imprecise for high
// download rates due to millisecond timedelta resolution
dlStart = Sys_Milliseconds();
deltaT = dlNextRound - dlStart;
if(sv_dlRate->integer)
if(deltaT > 0)
{
// Rate limiting. This is very imprecise for high
// download rates due to millisecond timedelta resolution
dlStart = Sys_Milliseconds();
deltaT = dlNextRound - dlStart;
if(deltaT > 0)
{
if(deltaT < timeVal)
timeVal = deltaT + 1;
}
else
{
numBlocks = SV_SendDownloadMessages();
if(numBlocks)
{
// There are active downloads
deltaT = Sys_Milliseconds() - dlStart;
delayT = 1000 * numBlocks * MAX_DOWNLOAD_BLKSIZE;
delayT /= sv_dlRate->integer * 1024;
if(delayT <= deltaT + 1)
{
// Sending the last round of download messages
// took too long for given rate, don't wait for
// next round, but always enforce a 1ms delay
// between DL message rounds so we don't hog
// all of the bandwidth. This will result in an
// effective maximum rate of 1MB/s per user, but the
// low download window size limits this anyways.
if(timeVal > 2)
timeVal = 2;
dlNextRound = dlStart + deltaT + 1;
}
else
{
dlNextRound = dlStart + delayT;
delayT -= deltaT;
if(delayT < timeVal)
timeVal = delayT;
}
}
}
if(deltaT < timeVal)
timeVal = deltaT + 1;
}
else
{
SV_SendDownloadMessages();
timeVal = 1;
numBlocks = SV_SendDownloadMessages();
if(numBlocks)
{
// There are active downloads
deltaT = Sys_Milliseconds() - dlStart;
delayT = 1000 * numBlocks * MAX_DOWNLOAD_BLKSIZE;
delayT /= sv_dlRate->integer * 1024;
if(delayT <= deltaT + 1)
{
// Sending the last round of download messages
// took too long for given rate, don't wait for
// next round, but always enforce a 1ms delay
// between DL message rounds so we don't hog
// all of the bandwidth. This will result in an
// effective maximum rate of 1MB/s per user, but the
// low download window size limits this anyways.
if(timeVal > 2)
timeVal = 2;
dlNextRound = dlStart + deltaT + 1;
}
else
{
dlNextRound = dlStart + delayT;
delayT -= deltaT;
if(delayT < timeVal)
timeVal = delayT;
}
}
}
}
if(timeVal == 0)
timeVal = 1;
if(com_busyWait->integer)
NET_Sleep(0);
else
NET_Sleep(timeVal - 1);
{
if(SV_SendDownloadMessages())
timeVal = 1;
}
}
if(timeVal == 0)
timeVal = 1;
if(com_busyWait->integer)
NET_Sleep(0);
else
NET_Sleep(timeVal - 1);
msec = Sys_Milliseconds() - com_frameTime;
if(msec >= minMsec)