wait.cpp

来自「一个很棒的网络控制系统仿真软件」· C++ 代码 · 共 45 行

#ifndef WAIT
#define WAIT

#include "exitmonitor.cpp"
#include "findQ.cpp"

void ttWait(char *nameOfEvent) {

  EventNode* en;
  Event* ev;
  TaskNode* tn;

  en = (EventNode*) rtsys->eventList->getFirst();
  while (en != NULL) {
    if (en->getEvent()->name != NULL) {
      if (strcmp(en->getEvent()->name, nameOfEvent) == 0)
	break;
    }
    en = (EventNode*) en->getNext();
  }
    
  if (en == NULL) {
    // Event does not exist 
    char buf[100];
    sprintf(buf, "ttWait: Non-existent event '%s'!", nameOfEvent);
    MEX_ERROR(buf);
  }
  else {
    // Event exists 
    ev = en->getEvent();
    ev->waitingQ->appendNode(new TaskNode(rtsys->executing));

    tn = findInQ(rtsys->executing->name, rtsys->readyQ);
    if (tn != NULL) {
      rtsys->readyQ->deleteNode(tn);
    }
    rtsys->running = NULL;
    
    if (!ev->isFree) 
      ttExitMonitor(ev->mon->name);
  }
}

#endif