void readhunt(List &list, char name[], int item) { Hunter hunter(name); Hunter val; if (list.find(hunter, val)){ val.addItem(item); list.replace(val); } else { hunter.addItem(item); list.insert(hunter); } }
int main() { initialize(); printf("Welcome to Smaug World Simulator\n"); const int seed = 1; //askUserValue("Enter the random value seed"); const long int maximumCowInterval = 10000000;//askUserValue("Enter maximumCowInterval in (us)"); const long int maximumThiefInterval = 10000000;//askUserValue("Enter maximumThiefInterval in (us)"); const long int maximumHunterInterval = 10000000;//askUserValue("Enter maximumHunterInterval in (us)"); const long int maximumSheepInterval = 10000000;//askUserValue("Enter maximumSheepInterval in (us)"); const int smaugWinChance = 50; //askUserValue("smaugWinProb (0 to 100)"); srand(seed); double cowTimer = 0; double sheepTimer = 0; double thiefTimer = 0; double hunterTimer = 0; parentProcessID = getpid(); smaugProcessID = -1; cowProcessGID = parentProcessID - 1; thiefProcessGID = parentProcessID - 2; hunterProcessGID = parentProcessID - 3; sheepProcessGID = parentProcessID - 4; pid_t childPID = fork(); if(childPID < 0) { printf("FORK FAILED\n"); return 1; } else if(childPID == 0) { smaug(smaugWinChance); // run the smaug return 0; } smaugProcessID = childPID; gettimeofday(&startTime, NULL); int zombieRemoveCounter = 0; // Variable to kill zombie while(*terminateFlagp == 0) { zombieRemoveCounter++; double simDuration = timeChange(startTime); if(cowTimer - simDuration <= 0) { cowTimer = simDuration + (rand() % maximumCowInterval) / 1000.0; printf("COW CREATED! next cow at: %f\n", cowTimer); int childPID = fork(); if(childPID == 0) { cow((rand() % maximumCowInterval) / 1000.0); return 0; } } if(thiefTimer - simDuration <= 0) { thiefTimer = simDuration + (rand() % maximumThiefInterval) / 1000.0; printf("THIEF CREATED! next thief at: %f\n", thiefTimer); int childPID = fork(); if(childPID == 0) { thief((rand() % maximumThiefInterval) / 1000.0); return 0; } } if(hunterTimer - simDuration <= 0) { hunterTimer = simDuration + (rand() % maximumHunterInterval) / 1000.0; printf("HUNTER CREATED! next hunter at: %f\n", hunterTimer); int childPID = fork(); if(childPID == 0) { hunter((rand() % maximumHunterInterval) / 1000.0); return 0; } } if(sheepTimer - simDuration <= 0) { sheepTimer = simDuration + (rand() % maximumSheepInterval) / 1000.0; printf("SHEEP CREATED! next sheep at: %f\n", sheepTimer); int childPID = fork(); if(childPID == 0) { sheep((rand() % maximumSheepInterval) / 1000.0); return 0; } } // remove zombie processes once in a 10 runs ~ at most 10 process if(zombieRemoveCounter % 10 == 0) { zombieRemoveCounter -= 10; int w = 0; int status = 0; while( (w = waitpid( -1, &status, WNOHANG)) > 1) { printf("REAPED zombie process %d from main loop\n", w); } } } terminateSimulation(); return 0; }
int main(void) { initialize(); srand(time(NULL)); int SHEEP_INTERVAL = 0; int COW_INTERVAL = 0; int THIEF_INTERVAL = 0; int HUNTER_INTERVAL = 0; long long sheep_time = 0; long long cow_time = 0; long long thief_time = 0; long long hunter_time = 0; int sheepSleepTime = 0; int cowSleepTime = 0; int thiefPathTime = 0; int hunterPathTime = 0; //======================================================== printf("Input the Sheep Interval:"); scanf("%d", &SHEEP_INTERVAL); printf("Input the maximum time that a sheep grazes:"); scanf("%d", &sheepSleepTime); //======================================================= printf("Input the Cow Interval:"); scanf("%d", &COW_INTERVAL); printf("Input the maximum time that a cow grazes:"); scanf("%d", &cowSleepTime); //======================================================= printf("Input the Thief Interval:"); scanf("%d", &THIEF_INTERVAL); printf("Input the maximum time that a thief looks for the path:"); scanf("%d", &thiefPathTime); //======================================================== printf("Input the Hunter Interval:"); scanf("%d", &HUNTER_INTERVAL); printf("Input the maximum time that a hunter looks for the path:"); scanf("%d", &hunterPathTime); //======================================================== sheep_time += SHEEP_INTERVAL; cow_time += COW_INTERVAL; thief_time += THIEF_INTERVAL; hunter_time += HUNTER_INTERVAL; int genflag = 0; // the flag tells what to generate long long elapsetime = 0; long long lastelapsetime = 0; struct timeval lasttime; struct timeval curtime; gettimeofday(&lasttime, NULL); //produce smaug pid_t result = fork(); if (result < 0) { printf("fork error\n"); exit(1); } if (result == 0) { smaug(); } else { pid_t r; while (1) { gettimeofday(&curtime, NULL); elapsetime += (curtime.tv_sec - lasttime.tv_sec) * 1000000 + (curtime.tv_usec - lasttime.tv_usec); // pid_t localpid = getpid(); //printf("In process: %d Elapsed time: %lld\n", localpid,elapsetime); // if(elapsetime - lastelapsetime >= 500000) lasttime = curtime; if (checkTermination()) { printf("****************************terminating in parent process**************************************************\n"); terminateSimulation(); int status; // block till all children exits waitpid(-1, &status, 0); printf("****************************In main: all children have exited\n"); releaseResource(); exit(0); } if (elapsetime > sheep_time) { genflag = 0; sheep_time += SHEEP_INTERVAL; r = fork(); if (r == 0) break; } if (elapsetime > cow_time) { genflag = 1; cow_time += COW_INTERVAL; r = fork(); if (r == 0) break; } if (elapsetime > thief_time) { genflag = 2; thief_time += THIEF_INTERVAL; r = fork(); if (r == 0) break; } if (elapsetime > hunter_time) { genflag = 3; hunter_time += HUNTER_INTERVAL; r = fork(); if (r == 0) break; } } //============================================================= if (genflag == 0) sheep(rand() % sheepSleepTime); else if (genflag == 1) cow(rand() % cowSleepTime); else if (genflag == 2) thief(rand() % thiefPathTime); else if (genflag == 3) hunter(rand() % hunterPathTime); exit(0); } }