void
draftSignalHandler(int sig){
initializeSigHandler();
int op;
read( signalPipe[0], &op, sizeof(int));
draftHandlingFun[op] ();
return;
}
int main(int argc, char *argv[]) {
initializeSigHandler();
setpgid(0, 0);
int i = 0;
int ret = 0;
pid_t pid;
cmpQty = argc - 2;
cmp = malloc(sizeof(company*) * cmpQty);
map = malloc(sizeof(graph));
sem_id = createSem(SEM_CREAT_KEY, cmpQty + SEM_QTY);
setAllSem(sem_id, cmpQty + SEM_QTY, 0);
if (initPIDS() == MALLOC_ERROR
)
return MALLOC_ERROR;
/***PARSER***/
if (cmp == NULL || map == NULL
)
return parserError(NULL, NULL, MALLOC_ERROR, NULL);
if ((ret = parseFiles(argc, argv, map, cmp)) != EXIT_SUCCESS
)
return ret;
/***INITIALIZES ARRAYS FOR THE EXECL***/
initializeArray(&semMsg, sem_id);
initializeArray(&procQty, ID_QTY + cmpQty);
/***MAP AND COMPANIES CREATION***/
if (createIPC(MAIN_ID, cmpQty + ID_QTY) == ERROR
)
return ERROR;
int map_pid = 0;
int io_pid = 0;
int mult_pid = 0;
if ((pid = fork()) == 0) {
execl("io", semMsg, procQty, NULL);
exit(1);
} else {
io_pid = pid;
addPid(io_pid);
if ((pid = fork()) == 0) {
execl("map", semMsg, procQty, NULL);
exit(1);
} else {
map_pid = pid;
addPid(map_pid);
if ((pid = fork()) == 0) {
execl("multitasker", semMsg, procQty, NULL);
exit(1);
} else {
mult_pid = pid;
addPid(mult_pid);
for (i = 0; i < cmpQty; i++) {
if ((pid = fork()) == 0) {
char *buf = NULL;
int id = CMP_ID + i;
initializeArray(&buf, id);
execl("company", buf, procQty, semMsg, NULL);
} else {
addPid(pid);
}
}
}
}
}
upSem(sem_id, MAIN_ID);
downSem(sem_id, IO_ID);
downSem(sem_id, MULTITASKER_ID);
for (i = 0; i < cmpQty; i++) {
downSem(sem_id, CMP_ID + i);
if (initializeCmp(cmp[i], MAIN_ID, CMP_ID + i) == ERROR
)
return ERROR;
}
downSem(sem_id, MAP_ID);
if (initializeMap(map, MAIN_ID, MAP_ID) == ERROR) {
return ERROR;
}
downSem(sem_id, MAP_ID);
for (i = 0; i < cmpQty; i++) {
wait(0); //Waits for all the companies to finish
}
kill(mult_pid, SIGTERM);
waitpid(mult_pid, 0, 0);
kill(map_pid, SIGTERM);
waitpid(map_pid, 0, 0);
kill(io_pid, SIGTERM);
waitpid(io_pid, 0, 0);
if (disconnectFromIPC(MAIN_ID) == ERROR) {
destroyIPC(MAIN_ID);
}
destroySem(sem_id);
/***FREES***/
freeAll();
return EXIT_SUCCESS;
}
