struct pfl_opstat *
pfl_opstat_initf(int flags, const char *namefmt, ...)
{
struct pfl_opstat *opst;
int sz, pos;
va_list ap;
char *name = pfl_opstat_name;
spinlock(&pfl_opstats_lock);
va_start(ap, namefmt);
sz = vsnprintf(name, 128, namefmt, ap) + 1;
va_end(ap);
/* (gdb) p ((struct pfl_opstat *)pfl_opstats.pda_items[74]).opst_name */
pos = psc_dynarray_bsearch(&pfl_opstats, name, _pfl_opstat_cmp);
if (pos < psc_dynarray_len(&pfl_opstats)) {
opst = psc_dynarray_getpos(&pfl_opstats, pos);
if (strcmp(name, opst->opst_name) == 0) {
pfl_assert((flags & OPSTF_EXCL) == 0);
freelock(&pfl_opstats_lock);
return (opst);
}
}
pfl_opstats_sum++;
opst = PSCALLOC(sizeof(*opst) + sz);
strlcpy(opst->opst_name, name, 128);
opst->opst_flags = flags;
psc_dynarray_splice(&pfl_opstats, pos, 0, &opst, 1);
freelock(&pfl_opstats_lock);
return (opst);
}
/*
* Initialize and push a new module into the file system processing
* stack.
*/
void
pflfs_module_add(int pos, struct pscfs *m)
{
if (pos == PFLFS_MOD_POS_LAST)
pos = psc_dynarray_len(&pscfs_modules);
psc_dynarray_splice(&pscfs_modules, pos, 0, &m, 1);
}
/*
* Remove a module from the file system processing stack.
*/
struct pscfs *
pflfs_module_remove(int pos)
{
struct pscfs *m;
m = psc_dynarray_getpos(&pscfs_modules, pos);
psc_dynarray_splice(&pscfs_modules, pos, 1, NULL, 0);
return (m);
}
void
pfl_opstat_destroy_pos(int pos)
{
struct pfl_opstat *opst;
LOCK_ENSURE(&pfl_opstats_lock);
opst = psc_dynarray_getpos(&pfl_opstats, pos);
psc_dynarray_splice(&pfl_opstats, pos, 1, NULL, 0);
PSCFREE(opst);
}
