/**
* Print the page table.
* If no current->mm->pgdir, print boot_pgdir, or print the pgdir of the current user process instead.
*/
void
print_pgdir(int (*printf)(const char *fmt, ...)) {
printf("-------------------- BEGIN --------------------\n");
size_t left, right = 0, perm;
pde_t* pgdir = boot_pgdir;
if (current != NULL && current->mm != NULL && current->mm->pgdir != NULL) {
pgdir = current->mm->pgdir;
}
while ((perm = get_pgtable_items(0, NPDEENTRY, right, pgdir, &left, &right)) != 0) {
printf("PDE(%03x) %08x-%08x %08x %s\n", right - left,
left * PTSIZE, right * PTSIZE, (right - left) * PTSIZE, perm2str(perm));
size_t l, r = left * NPTEENTRY;
while ((perm = get_pgtable_items_2 (left * NPTEENTRY, right * NPTEENTRY, r, pgdir, &l, &r)) != 0) {
printf(" |-- PTE(%05x) %08x-%08x %08x %s\n", r - l,
l * PGSIZE, r * PGSIZE, (r - l) * PGSIZE, perm2str(perm));
}
}
printf("--------------------- END ---------------------\n");
}
//print_pgdir - print the PDT&PT
void print_pgdir(int (*printf) (const char *fmt, ...))
{
printf("-------------------- BEGIN --------------------\n");
size_t left, right = 0, perm;
while ((perm =
get_pgtable_items(0, NPDEENTRY, right, vpd, &left,
&right)) != 0) {
printf("PDE(%03x) %08x-%08x %08x %s\n", right - left,
left * PTSIZE, right * PTSIZE, (right - left) * PTSIZE,
perm2str(perm));
size_t l, r = left * NPTEENTRY;
while ((perm =
get_pgtable_items(left * NPTEENTRY, right * NPTEENTRY,
r, vpt, &l, &r)) != 0) {
printf(" |-- PTE(%05x) %08x-%08x %08x %s\n", r - l,
l * PGSIZE, r * PGSIZE, (r - l) * PGSIZE,
perm2str(perm));
}
}
printf("--------------------- END ---------------------\n");
}
void semStatus(int semid) {
int ret;
struct semid_ds ds;
ret = semctl(semid, 0, IPC_STAT, &ds);
if (ret == -1) { perror("semctl"); exit(-1); }
fprintf(stderr, "t=%ld,sid=%d,otime=%ld,ctime=%ld,nsems=%d,perm:%s\n",
(long)time(NULL),
semid,
(long)ds.sem_otime,
(long)ds.sem_ctime,
(int)ds.sem_nsems,
perm2str(ds.sem_perm)
);
}
