Контрольная работа: Циклический обмен содержимым файлов

{

char *a4 = "4", *a3 = "3", *a2 = "2", *a1 = "1";

int p1, p2, p3, p4;

printf ("Cozdanie vseh processov:\n");

printf ("\n");

printf ("Cozdanie processa 4 \n");

printf ("Porozhdenie processa 1 processom 4\n");

printf ("Porozhdenie processa 2 processom 1\n");

printf ("Porozhdenie processa 3 processom 2\n");

p4 = fork();

if(p4)

{

p1 = fork();

exit(0);

}

if(p1)

{

file_obmen(a4, a3);

printf("Write file 4 >>> file 3\n");

p2 = fork();

}

sleep(1);

if(p2)

{

file_obmen(a3, a2);

printf("Write file 3 >>> file 2\n");

p3 = fork();

exit(0);

}