/*
* Initialize a module for the file system processing stack.
*/
void
pflfs_module_init(struct pscfs *m)
{
m->pf_opst_read_err = pfl_opstat_initf(OPSTF_BASE10,
"fs.%s.read.err", m->pf_name);
m->pf_opst_write_err = pfl_opstat_initf(OPSTF_BASE10,
"fs.%s.write.err", m->pf_name);
m->pf_opst_read_reply =
pfl_opstat_init("fs.%s.read.reply", m->pf_name);
m->pf_opst_write_reply =
pfl_opstat_init("fs.%s.write.reply", m->pf_name);
}
/*
* Register a list cache for external access.
* @plc: the list cache to register.
* @name: printf(3) format of name for list.
* @ap: variable argument list for printf(3) name argument.
*/
void
lc_vregister(struct psc_listcache *plc, const char *name, va_list ap)
{
int rc;
PLL_LOCK(&psc_listcaches);
LIST_CACHE_LOCK(plc);
rc = vsnprintf(plc->plc_name, sizeof(plc->plc_name), name, ap);
if (rc == -1)
psc_fatal("vsnprintf");
if (rc > (int)sizeof(plc->plc_name))
psc_fatalx("plc_name is too large (%s)", name);
plc->plc_nseen = pfl_opstat_initf(OPSTF_BASE10,
"listcache.%s.adds", plc->plc_name);
plc->plc_st_removes = pfl_opstat_initf(OPSTF_BASE10,
"listcache.%s.removes", plc->plc_name);
pll_add_sorted(&psc_listcaches, plc, lc_cmp);
LIST_CACHE_ULOCK(plc);
PLL_ULOCK(&psc_listcaches);
}
void
pfl_opstats_grad_init(struct pfl_opstats_grad *og, int flags,
int64_t *buckets, int nbuckets, const char *fmt, ...)
{
const char *lower_suffix = "", *upper_suffix = "";
int64_t lower_bound, upper_bound;
struct pfl_opstat_bucket *ob;
char label[16];
int rc, i;
og->og_buckets = PSCALLOC(nbuckets * sizeof(og->og_buckets[0]));
og->og_nbuckets = nbuckets;
for (i = 0, ob = og->og_buckets; i < nbuckets; i++, ob++) {
if (i)
pfl_assert(buckets[i - 1] < buckets[i]);
else
pfl_assert(buckets[i] == 0);
lower_bound = buckets[i];
if (!(flags & OPSTF_BASE10))
lower_suffix = _pfl_opstats_base2_suffix(
&lower_bound);
if (i == nbuckets - 1) {
rc = snprintf(label, sizeof(label),
"%d:>=%"PRId64"%.1s", i, lower_bound,
lower_suffix);
} else {
upper_bound = buckets[i + 1];
if (!(flags & OPSTF_BASE10))
upper_suffix =
_pfl_opstats_base2_suffix(
&upper_bound);
rc = snprintf(label, sizeof(label),
"%d:%"PRId64"%.1s-<%"PRId64"%.1s", i,
lower_bound, lower_suffix,
upper_bound, upper_suffix);
}
if (rc == -1)
psc_fatal("snprintf");
ob->ob_lower_bound = buckets[i];
ob->ob_opst = pfl_opstat_initf(flags | OPSTF_BASE10,
fmt, label);
}
}
