Warning: Undefined array key "view" in /var/www/html/wp-content/uploads/classes/so/1920/lab-examples/index.php on line 2

Warning: Cannot modify header information - headers already sent by (output started at /var/www/html/wp-content/uploads/classes/so/1920/lab-examples/index.php:2) in /var/www/html/wp-content/uploads/classes/so/1920/lab-examples/index.php on line 47

Warning: Cannot modify header information - headers already sent by (output started at /var/www/html/wp-content/uploads/classes/so/1920/lab-examples/index.php:2) in /var/www/html/wp-content/uploads/classes/so/1920/lab-examples/index.php on line 48

Warning: Cannot modify header information - headers already sent by (output started at /var/www/html/wp-content/uploads/classes/so/1920/lab-examples/index.php:2) in /var/www/html/wp-content/uploads/classes/so/1920/lab-examples/index.php on line 49

Warning: Cannot modify header information - headers already sent by (output started at /var/www/html/wp-content/uploads/classes/so/1920/lab-examples/index.php:2) in /var/www/html/wp-content/uploads/classes/so/1920/lab-examples/index.php on line 50

Warning: Cannot modify header information - headers already sent by (output started at /var/www/html/wp-content/uploads/classes/so/1920/lab-examples/index.php:2) in /var/www/html/wp-content/uploads/classes/so/1920/lab-examples/index.php on line 51
/** * il padre crea 2 figli ma attende la terminazione solo di uno specifico di essi */ #include #include #include #include int main() { pid_t pid1, pid2; int i; pid1 = fork(); // creo un primo figlio if (pid1 == 0) { // processo figlio (lento) for (i = 0; i < 15; i++) { sleep(rand() % 4); printf("Sono il FIGLIO LENTO [%d].\n", getpid()); } printf("Sono il FIGLIO LENTO [%d] e ho finito.\n", getpid()); exit(0); } sleep(2); // gli diamo un po' di vantaggio pid2 = fork(); // creo un secondo figlio if (pid2 == 0) { // processo figlio (veloce) for (i = 0; i < 20; i++) { sleep(rand() % 2); printf("Sono il FIGLIO VELOCE [%d].\n", getpid()); } printf("Sono il FIGLIO VELOCE [%d] e ho finito.\n", getpid()); exit(0); } // processo padre sleep(rand() % 2); printf("Sono il processo PADRE e mi metto in attesa del figlio veloce [%d]...\n", pid2); waitpid(pid2, NULL, 0); printf("Sono il processo PADRE e ho terminato il mio lavoro.\n"); exit(0); }