extern cvar_t host_maxwait;
extern cvar_t host_framerate;
+extern cvar_t cl_maxphysicsframesperserverframe;
+double SV_Frame(double time)
+{
+ static double sv_timer;
+ int i;
+ qboolean playing;
+ char vabuf[1024];
+
+ if((sv_timer += time) < 0)
+ return sv_timer;
+ // limit the frametime steps to no more than 100ms each
+ if (sv_timer > 0.1)
+ {
+ if (!svs.threaded)
+ svs.perf_acc_lost += (sv_timer - 0.1);
+ sv_timer = 0.1;
+ }
+
+ if (!svs.threaded)
+ {
+ svs.perf_acc_sleeptime = host.sleeptime;
+ svs.perf_acc_realtime += time;
+
+ // Look for clients who have spawned
+ playing = false;
+ for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
+ if(host_client->begun)
+ if(host_client->netconnection)
+ playing = true;
+ if(sv.time < 10)
+ {
+ // don't accumulate time for the first 10 seconds of a match
+ // so things can settle
+ svs.perf_acc_realtime = svs.perf_acc_sleeptime = svs.perf_acc_lost = svs.perf_acc_offset = svs.perf_acc_offset_squared = svs.perf_acc_offset_max = svs.perf_acc_offset_samples = host.sleeptime = 0;
+ }
+ else if(svs.perf_acc_realtime > 5)
+ {
+ svs.perf_cpuload = 1 - svs.perf_acc_sleeptime / svs.perf_acc_realtime;
+ svs.perf_lost = svs.perf_acc_lost / svs.perf_acc_realtime;
+ if(svs.perf_acc_offset_samples > 0)
+ {
+ svs.perf_offset_max = svs.perf_acc_offset_max;
+ svs.perf_offset_avg = svs.perf_acc_offset / svs.perf_acc_offset_samples;
+ svs.perf_offset_sdev = sqrt(svs.perf_acc_offset_squared / svs.perf_acc_offset_samples - svs.perf_offset_avg * svs.perf_offset_avg);
+ }
+ if(svs.perf_lost > 0 && developer_extra.integer)
+ if(playing) // only complain if anyone is looking
+ Con_DPrintf("Server can't keep up: %s\n", Host_TimingReport(vabuf, sizeof(vabuf)));
+ svs.perf_acc_realtime = svs.perf_acc_sleeptime = svs.perf_acc_lost = svs.perf_acc_offset = svs.perf_acc_offset_squared = svs.perf_acc_offset_max = svs.perf_acc_offset_samples = host.sleeptime = 0;
+ }
+
+ if (sv.active && sv_timer > 0)
+ {
+ // execute one or more server frames, with an upper limit on how much
+ // execution time to spend on server frames to avoid freezing the game if
+ // the server is overloaded, this execution time limit means the game will
+ // slow down if the server is taking too long.
+ int framecount, framelimit = 1;
+ double advancetime, aborttime = 0;
+ float offset;
+ prvm_prog_t *prog = SVVM_prog;
+ // receive packets on each main loop iteration, as the main loop may
+ // be undersleeping due to select() detecting a new packet
+ if (sv.active && !svs.threaded)
+ NetConn_ServerFrame();
+ // run the world state
+ // don't allow simulation to run too fast or too slow or logic glitches can occur
+
+ // stop running server frames if the wall time reaches this value
+ if (sys_ticrate.value <= 0)
+ advancetime = sv_timer;
+ else
+ {
+ advancetime = sys_ticrate.value;
+ // listen servers can run multiple server frames per client frame
+ framelimit = cl_maxphysicsframesperserverframe.integer;
+ aborttime = Sys_DirtyTime() + 0.1;
+ }
+ if(host_timescale.value > 0 && host_timescale.value < 1)
+ advancetime = min(advancetime, 0.1 / host_timescale.value);
+ else
+ advancetime = min(advancetime, 0.1);
+
+ if(advancetime > 0)
+ {
+ offset = Sys_DirtyTime() - host.dirtytime;
+ if (offset < 0 || offset >= 1800)
+ offset = 0;
+ offset += sv_timer;
+ ++svs.perf_acc_offset_samples;
+ svs.perf_acc_offset += offset;
+ svs.perf_acc_offset_squared += offset * offset;
+ if(svs.perf_acc_offset_max < offset)
+ svs.perf_acc_offset_max = offset;
+ }
+
+ // only advance time if not paused
+ // the game also pauses in singleplayer when menu or console is used
+ sv.frametime = advancetime * host_timescale.value;
+ if (host_framerate.value)
+ sv.frametime = host_framerate.value;
+ if (sv.paused || host.paused)
+ sv.frametime = 0;
+
+ for (framecount = 0;framecount < framelimit && sv_timer > 0;framecount++)
+ {
+ sv_timer -= advancetime;
+
+ // move things around and think unless paused
+ if (sv.frametime)
+ SV_Physics();
+
+ // if this server frame took too long, break out of the loop
+ if (framelimit > 1 && Sys_DirtyTime() >= aborttime)
+ break;
+ }
+ R_TimeReport("serverphysics");
+
+ // send all messages to the clients
+ SV_SendClientMessages();
+
+ if (sv.paused == 1 && host.realtime > sv.pausedstart && sv.pausedstart > 0) {
+ prog->globals.fp[OFS_PARM0] = host.realtime - sv.pausedstart;
+ PRVM_serverglobalfloat(time) = sv.time;
+ prog->ExecuteProgram(prog, PRVM_serverfunction(SV_PausedTic), "QC function SV_PausedTic is missing");
+ }
+
+ // send an heartbeat if enough time has passed since the last one
+ NetConn_Heartbeat(0);
+ R_TimeReport("servernetwork");
+ }
+ else
+ {
+ // don't let r_speeds display jump around
+ R_TimeReport("serverphysics");
+ R_TimeReport("servernetwork");
+ }
+ }
+ // if there is some time remaining from this frame, reset the timer
+ if (sv_timer >= 0)
+ {
+ if (!svs.threaded)
+ svs.perf_acc_lost += sv_timer;
+ sv_timer = 0;
+ }
+ return sv_timer;
+}
+
static int SV_ThreadFunc(void *voiddata)
{
prvm_prog_t *prog = SVVM_prog;
projects / xonotic / darkplaces.git / blobdiff