hostside/speed.c

   1 /*
   2  * realtime
   3  * speed manager
   4  */
   5
   6 #include "realtime.h"
   7
   8 static void adjust_next(TrainNum tran) {
   9   S; TRA;
  10   calculate next speed step in the appropriate direction
  11     call safety_setspeed
  12
  13
  14 speedmanager_speedchange_notify {
  15   fixme need to know whether this is a countermand or not
  16
  17   actually send speed to train
  18     (fixme: combine speedmanager and actual?)
  19     queue an adjust_next
  20
  21   make speedmanager also responsible for doing actuals ?
  22   pass speed step number through ?
  23
  24 void speedmanager_speedchange_request(TrainNum tran, Speed speed) {
  25   S; TRA; TRAI;
  26
  27   if (speed > trai->maxspeed) {
  28     logmsg(EC_Invalid, tran, NOTA(SegmentNum),
  29            "requested speed %l excessive; capping at %l",
  30            (long)speed, (long)trai->maxspeed);
  31     speed= trai->maxspeed;
  32   }
  33   tra->targetspeed= speed;
  34   if (!speedadjust->running)
  35     adjust_next(tran);
  36 }