int main(int argc, char *argv[]) {
int i, rc, n = 0;
pthread_t threads[MAX_SIZE];
nprocs = sysconf(_SC_NPROCESSORS_ONLN); // numero de processadores do sistema
gstart = clock();
nthreads = 0;
dflag = 0;
for (i = 0; i < MAX_SIZE; i++)
flags[i] = 0;
play = 1;
if (argc >= 4) { // parametros: 1- numero do escalonador 2- nome do arquivo trace 3- nome do arquivo a ser criado
if (argc == 5) // 4- (opcional) caracter d
if (strcmp(argv[4], "d") == 0)
dflag = 1;
readTraceFile(argc, argv[2], &n, procs);
switch (*argv[1]) {
case '1':
firstCome(n, threads);
break;
case '2':
// shortestJob(n, threads);
break;
case '3':
printf("Shortest Remaining Time Next.\n");
break;
case '4':
printf("Round-Robin.\n");
break;
case '5':
printf("Escalonamento com Prioridade.\n");
break;
case '6':
printf("Escalonamento em Tempo Real com Deadlines Rigidos.\n");
break;
default:
printf("Escalonador Escolhido Incorreto.\n");
exit(EXIT_FAILURE);
}
}
else {
printf("Numero incorreto de parametros.\n");
exit(EXIT_FAILURE);
}
for (i = 0; i < n; i++) { //esperando as threads terminarem
rc = pthread_join(threads[i], NULL);
assert(0 == rc);
}
writeTraceFile(argv[3], n, procs, 0);
for (i = 0; i < n; i++)
free(procs[i].name);
pthread_mutex_destroy(&mutex);
pthread_cond_destroy(&cond);
return 0;
}
/** Handles the algorithm selection, depending on which scheduling method was specified via the command line
@param inputfile The name of the input file containing the processes
@param algorithm The desired schedulaing algorithm
@param quantum The desired time quantum (for round robin scheduling only)
@param expire The time at which the memory state is cloned for printing to the output file
@param mode The program mode. 0 represents Scheduler mode, 1 represents Virtual Memory mode
*/
void scheduler(char **inputfile, char **algorithm, int *quantum, int *expire,int *mode) {
int length;
process **proc = readFile(*inputfile, &length, mode);
// Sort the processes and enqueue.
QUEUE *pqueue = sort(proc, length);
// Prepare and output file.
FILE *file;
if((file = fopen("out.file","w")) == NULL)
{
printf("Failed to create/open the file\n");
return;
}
// Algorithm selection
if(strcmp(*algorithm, "FCFS") == 0)
{
firstCome(pqueue,expire,mode);
}
else if(strcmp(*algorithm, "RR") == 0)
{
roundRobin(pqueue, *quantum,expire,mode);
}
else if(strcmp(*algorithm, "SRT") == 0)
{
shortestRemaining(pqueue,expire,mode);
}
else if(strcmp(*algorithm, "SPN") == 0)
{
shortestNext(pqueue,expire,mode);
}
//prepare and print to the memory output file if the mode suggests to do so
if(*mode == 1) {
//append all virtual memory and page table data to the file
printPage();
}
fclose(file);
return;
}
