void System::nextEvent(){
auto event = eq.top();
currTime = event->time;
eq.pop();
if( event != NULL ){
auto t = event->type;
if(t == START ){
auto e = std::dynamic_pointer_cast<StartTask> (event);
e->nextProcess();
}
else if(t == CPU ){
auto e = std::dynamic_pointer_cast<CPUDone> (event);
e->nextProcess();
}
else if(t == IO ){
auto e = std::dynamic_pointer_cast<IODone> (event );
e->nextProcess();
}
else if(t == END){
endTime = currTime;
std::dynamic_pointer_cast<EndSim> (event )->nextProcess();
return;
}
}
else{
assert(true);
}
}
//
// main - The simulator's main routine
//
int main(int argc, char **argv){
int processes[10];
init();
int i;
for(i=0;i<10;i++){
processes[i]=100;
printf("Scheduled Process: %d\n", i);
addProcess(i);
}
int process = 0;
while(hasProcess()){
process = nextProcess();
for(;;){
printf("Process %d executed\n", process);
processes[process]--;
if(processes[process]<0){
printf("Process %d Finished\n", process);
break;
}
}
}
exit(0); //control never reaches here
}
//
// main - The simulator's main routine
//
int main(int argc, char **argv){
int processes[14];
init();
int i;
for(i=0;i<10;i++){
processes[i]=100;
int priority = i%4;
printf("Scheduled Process: %d, Priority:%d\n", i, priority);
PCB* proc = (PCB *) malloc(sizeof(PCB));
proc->pid = i;
proc->priority=priority;
addProcess(proc);
}
PCB* process = NULL;
int count = 0;
int time = 0;
while(hasProcess()){
process = nextProcess(&time);
if(!process){
printf("NULL Process, something went wrong in your code.\n");
exit(1);
}
for(;time>0;time--){
printf("Process %d executed\n", process->pid);
processes[process->pid]--;
if(processes[process->pid]<0){
printf("Process %d Finished\n", process->pid);
}
count++;
}
if(processes[process->pid]>=0){
addProcess(process);
}
if(count==400){
for(;i<14;i++){
processes[i]=100;
int priority = i%4;
printf("Scheduled Process: %d, Priority:%d\n", i, priority);
PCB* proc = (PCB *) malloc(sizeof(PCB));
proc->pid = i;
proc->priority=priority;
addProcess(proc);
}
}
}
exit(0); //control never reaches here
}