int sc_ctl_call(sc *s, uint64_t vlsn)
{
int rc = sr_statusactive(s->r->status);
if (ssunlikely(rc == 0))
return 0;
scworker *w = sc_workerpool_pop(&s->wp, s->r);
if (ssunlikely(w == NULL))
return -1;
rc = sc_step(s, w, vlsn);
sc_workerpool_push(&s->wp, w);
return rc;
}
static void*
se_worker(void *arg)
{
ssthread *self = arg;
se *e = self->arg;
ss_thread_setname(self, "worker");
ss_vfsioprio_low(&e->vfs);
scworker *w = sc_workerpool_pop(&e->scheduler.wp, &e->r);
if (ssunlikely(w == NULL))
return NULL;
for (;;)
{
int rc = se_active(e);
if (ssunlikely(rc == 0))
break;
rc = sc_step(&e->scheduler, w, sx_vlsn(&e->xm));
if (ssunlikely(rc == -1))
break;
if (ssunlikely(rc == 0))
ss_sleep(10000000); /* 10ms */
}
sc_workerpool_push(&e->scheduler.wp, w);
return NULL;
}
int sc_ctl_branch(sc *s, uint64_t vlsn, si *index)
{
sr *r = s->r;
int rc = sr_statusactive(r->status);
if (ssunlikely(rc == 0))
return 0;
srzone *z = sr_zoneof(r);
scworker *w = sc_workerpool_pop(&s->wp, r);
if (ssunlikely(w == NULL))
return -1;
while (1) {
uint64_t vlsn_lru = si_lru_vlsn(index);
siplan plan = {
.explain = SI_ENONE,
.plan = SI_BRANCH,
.a = z->branch_wm,
.b = 0,
.c = 0,
.node = NULL
};
rc = si_plan(index, &plan);
if (rc == 0)
break;
rc = si_execute(index, &w->dc, &plan, vlsn, vlsn_lru);
if (ssunlikely(rc == -1))
break;
}
sc_workerpool_push(&s->wp, w);
return rc;
}
int sc_ctl_compact(sc *s, uint64_t vlsn, si *index)
{
sr *r = s->r;
int rc = sr_statusactive(r->status);
if (ssunlikely(rc == 0))
return 0;
srzone *z = sr_zoneof(r);
scworker *w = sc_workerpool_pop(&s->wp, r);
if (ssunlikely(w == NULL))
return -1;
while (1) {
uint64_t vlsn_lru = si_lru_vlsn(index);
siplan plan = {
.explain = SI_ENONE,
.plan = SI_COMPACT,
.a = z->compact_wm,
.b = z->compact_mode,
.c = 0,
.node = NULL
};
rc = si_plan(index, &plan);
if (rc == 0)
break;
rc = si_execute(index, &w->dc, &plan, vlsn, vlsn_lru);
if (ssunlikely(rc == -1))
break;
}
sc_workerpool_push(&s->wp, w);
return rc;
}
int sc_ctl_compact_index(sc *s, uint64_t vlsn, si *index)
{
sr *r = s->r;
int rc = sr_statusactive(r->status);
if (ssunlikely(rc == 0))
return 0;
srzone *z = sr_zoneof(r);
scworker *w = sc_workerpool_pop(&s->wp, r);
if (ssunlikely(w == NULL))
return -1;
while (1) {
uint64_t vlsn_lru = si_lru_vlsn(index);
siplan plan = {
.explain = SI_ENONE,
.plan = SI_COMPACT_INDEX,
.a = z->branch_wm,
.b = 0,
.c = 0,
.node = NULL
};
rc = si_plan(index, &plan);
if (rc == 0)
break;
rc = si_execute(index, &w->dc, &plan, vlsn, vlsn_lru);
if (ssunlikely(rc == -1))
break;
}
sc_workerpool_push(&s->wp, w);
return rc;
}
int sc_ctl_anticache(sc *s)
{
uint64_t asn = sr_seq(s->r->seq, SR_ASNNEXT);
ss_mutexlock(&s->lock);
s->anticache_asn = asn;
s->anticache_storage = s->anticache_limit;
s->anticache = 1;
ss_mutexunlock(&s->lock);
return 0;
}
